Add OpenID AppAuth library

- Add managed device for testing
- Set device to "Pixel 3" with API level 34
- Use AOSP system image source

.github/CODEOWNERS

@@ -0,0 +1,8 @@
+# See https://docs.github.com/de/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
+# For combination with "Require review from code owners" for main-ose branch.
+
+# Dependabot
+gradle/**   @bitfireAT/app-dev
+
+# everything else
+*   @rfc2822

.github/ISSUE_TEMPLATE/config.yml

@@ -1,4 +1,4 @@
-blank_issues_enabled: false
+blank_issues_enabled: true
 contact_links:
   - name: DAVx⁵ Community Support
     url: https://github.com/bitfireAT/davx5-ose/discussions

.github/ISSUE_TEMPLATE/qualified-bug.yml

@@ -0,0 +1,44 @@
+name: Qualified Bug Report
+description: "For qualified bug reports. (Use Discussions if unsure.)"
+type: bug
+labels: ["bug"]
+body:
+  - type: checkboxes
+    attributes:
+      label: Problem scope
+      description: Use Discussions if you're unsure which component (DAVx⁵, calendar app, server, …) causes your problem.
+      options:
+        - label: I'm sure that this is a DAVx⁵ problem.
+          required: true
+  - type: checkboxes
+    attributes:
+      label: App version
+      options:
+        - label: I'm using the latest available DAVx⁵ version.
+          required: true
+  - type: input
+    attributes:
+      label: Android version and device/firmware type
+      placeholder: "Android 13 (Samsung A32)"
+  - type: textarea
+    attributes:
+      label: Steps to reproduce
+      description: Provide detailed steps to reproduce the problem.
+      placeholder: |
+        1. Create DAVx⁵ account with Some Server (Version).
+        2. Sync Some Calendar.
+        3. SomeException appears.
+  - type: textarea
+    attributes:
+      label: Actual result
+      description: Describe what you DAVx⁵ currently does (and what is not expected).
+      placeholder: "Some Property in ICS file causes the whole synchronization to stop."
+  - type: textarea
+    attributes:
+      label: Expected result
+      description: Describe what you would expect DAVx⁵ to avoid/solve the problem.
+      placeholder: "Some Property in ICS file should be ignored even if faulty and sync should continue instead of showing an error."
+  - type: textarea
+    attributes:
+      label: Further info
+      description: Debug info, links to further information, …

.github/ISSUE_TEMPLATE/qualified-feature.yml

@@ -0,0 +1,20 @@
+name: Qualified Feature Request
+description: "For qualified feature requests. (Use Discussions if unsure.)"
+type: feature
+labels: ["enhancement"]
+body:
+  - type: checkboxes
+    attributes:
+      label: Scope
+      description: Use this form only for features that have been discussed in Discussions or if you're a DAVx5 developer.
+      options:
+        - label: I'm sure that this feature request belongs here and not into Discussions.
+          required: true
+  - type: textarea
+    attributes:
+      label: Description
+      description: Describe the requested feature and why it is desired.
+  - type: textarea
+    attributes:
+      label: Further info
+      description: How this could be implemented, links to further information, …

.github/dependabot.yml

@@ -0,0 +1,32 @@
+version: 2
+updates:
+  # Enable version updates for GitHub Actions
+  - package-ecosystem: "github-actions"
+    # Workflow files stored in the default location of `.github/workflows`
+    # You don't need to specify `/.github/workflows` for `directory`. You can use `directory: "/"`.
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    commit-message:
+      prefix: "[CI] "
+    labels:
+      - "github_actions"
+      - "dependencies"
+    groups:
+      ci-actions:
+        patterns: ["*"]
+        
+  - package-ecosystem: "gradle"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    labels:             # don't create "java" label (default for gradle ecosystem)
+      - "dependencies"
+    groups:
+      app-dependencies:
+        patterns: ["*"]
+    ignore:
+      # dependencies without semantic versioning
+      - dependency-name: "com.github.bitfireat:cert4android"
+      - dependency-name: "com.github.bitfireat:dav4jvm"
+      - dependency-name: "com.github.bitfireat:synctools"

.github/pull_request_template.md

@@ -0,0 +1,38 @@
+
+Please delete this paragraph and other repeating text (like the examples) after reading and before submitting the PR.
+
+The PR should be in _Draft_ state during development. As soon as it's finished, it should be marked as _Ready for review_ and a reviewer should be chosen.
+
+See also: [Writing A Great Pull Request Description](https://www.pullrequest.com/blog/writing-a-great-pull-request-description/)
+
+
+### Purpose
+
+What this PR is intended to do and why this is desirable.
+
+Example: 
+
+> Adds support for AAA in BBB, as requested by several people in issue #XX.
+
+
+### Short description
+
+A short description of the chosen approach to achieve the purpose.
+
+Example:
+
+> - Added authentication option _Some authentication_ to _some module_.
+> - Added support for _Some authentication_ to _some content provider_.
+> - Added UI support for _Some authentication_ in account settings.
+
+Related information (links to Android docs and other resources that help to understand/review
+the changes) can also be put here.
+
+
+### Checklist
+
+- [ ] The PR has a proper title, description and label.
+- [ ] I have [self-reviewed the PR](https://patrickdinh.medium.com/review-your-own-pull-requests-5634cad10b7a).
+- [ ] I have added documentation to complex functions and functions that can be used by other modules.
+- [ ] I have added reasonable tests or consciously decided to not add tests.
+

.github/release.yml

@@ -0,0 +1,20 @@
+changelog:
+  exclude:
+    labels:
+      - ignore-for-release
+  categories:
+    - title: New features
+      labels:
+        - enhancement
+    - title: Bug fixes
+      labels:
+        - bug
+    - title: Refactoring
+      labels:
+        - refactoring
+    - title: Dependencies
+      labels:
+        - dependencies
+    - title: Other changes
+      labels:
+        - "*"

.github/workflows/codeql.yml

@@ -2,14 +2,15 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ "dev-ose", main-ose ]
+    branches: [ main-ose ]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ "dev-ose" ]
+    branches: [ main-ose ]
   schedule:
     - cron: '22 10 * * 1'
+
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: codeql-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
@@ -21,43 +22,29 @@ jobs:
       contents: read
       security-events: write
 
-    strategy:
-      fail-fast: false
-      matrix:
-        language: [ 'java' ]
-
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
-    - uses: actions/setup-java@v4
+      uses: actions/checkout@v6
+    - uses: actions/setup-java@v5
       with:
-        distribution: 'temurin'
-        java-version: 17
-    - uses: gradle/actions/setup-gradle@v3
-
-    - name: Use app/build and gradle configuration cache
-      uses: actions/cache/restore@v4
+        distribution: temurin
+        java-version: 21
+    - uses: gradle/actions/setup-gradle@v5
       with:
-        key: app_build-tests-without-emulator
-        path: |
-          .gradle/configuration-cache
-          app/build
+        cache-encryption-key: ${{ secrets.gradle_encryption_key }}
+        cache-read-only: true         # gradle user home cache is generated by test jobs
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@v4
       with:
-        languages: ${{ matrix.language }}
+        languages: java-kotlin
+        build-mode: manual            # autobuild uses older JDK
 
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, Go, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    #- name: Autobuild
-    #  uses: github/codeql-action/autobuild@v2
-
-    - name: Build
-      run: ./gradlew --no-daemon app:assembleOseDebug
+    - name: Build                     # we must not use build cache here
+      run: ./gradlew --no-daemon --configuration-cache app:assembleDebug
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@v4
       with:
         category: "/language:${{matrix.language}}"

.github/workflows/dependency-submission.yml

@@ -0,0 +1,24 @@
+name: Dependency Submission
+
+on:
+  push:
+    branches: [ 'main-ose' ]
+
+permissions:
+  contents: write
+
+jobs:
+  dependency-submission:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v6
+    - uses: actions/setup-java@v5
+      with:
+        distribution: temurin
+        java-version: 21
+
+    - name: Generate and submit dependency graph
+      uses: gradle/actions/dependency-submission@v5
+      with:
+        cache-encryption-key: ${{ secrets.gradle_encryption_key }}
+        dependency-graph-exclude-configurations: '.*[Tt]est.* .*[cC]heck.*'

.github/workflows/dependent-issues.yml

@@ -1,55 +0,0 @@
-name: Dependent Issues
-
-on:
-  issues:
-    types:
-      - opened
-      - edited
-      - closed
-      - reopened
-  pull_request_target:
-    types:
-      - opened
-      - edited
-      - closed
-      - reopened
-      # Makes sure we always add status check for PRs. Useful only if
-      # this action is required to pass before merging. Otherwise, it
-      # can be removed.
-      - synchronize
-
-  # Schedule a daily check. Useful if you reference cross-repository
-  # issues or pull requests. Otherwise, it can be removed.
-  schedule:
-    - cron: '19 9 * * *'
-
-permissions: write-all
-
-jobs:
-  check:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: z0al/dependent-issues@v1
-        env:
-          # (Required) The token to use to make API calls to GitHub.
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          # (Optional) The token to use to make API calls to GitHub for remote repos.
-          GITHUB_READ_TOKEN: ${{ secrets.DEPENDENT_ISSUES_READ_TOKEN }}
-
-        with:
-          # (Optional) The label to use to mark dependent issues
-          # label: dependent
-
-          # (Optional) Enable checking for dependencies in issues.
-          # Enable by setting the value to "on". Default "off"
-          check_issues: on
-
-          # (Optional) A comma-separated list of keywords. Default
-          # "depends on, blocked by"
-          keywords: depends on, blocked by
-
-          # (Optional) A custom comment body. It supports `{{ dependencies }}` token.
-          comment: >
-            This PR/issue depends on:
-
-            {{ dependencies }}

.github/workflows/release.yml

@@ -5,7 +5,7 @@ on:
       - v*
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: release-${{ github.ref }}
   cancel-in-progress: true
 
 env:
@@ -19,24 +19,19 @@ jobs:
       discussions: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-java@v4
+      - uses: actions/checkout@v6
+      - uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 17
-      - uses: gradle/actions/setup-gradle@v3
+          java-version: 21
+      - uses: gradle/actions/setup-gradle@v5
 
       - name: Prepare keystore
         run: echo ${{ secrets.android_keystore_base64 }} | base64 -d >$GITHUB_WORKSPACE/keystore.jks
 
-      - name: Export library definitions
-        # --no-build-cache and --no-configuration-cache are required for AboutLibraries (bitfireAT/davx5#263, mikepenz/AboutLibraries#857).
-        # Safe to remove as soon as AboutLibraries is compatible with these caches.
-        run: ./gradlew --no-build-cache --no-configuration-cache -PaboutLibraries.exportPath=src/main/res/raw/ app:exportLibraryDefinitions
-
       - name: Build signed package
-        # Make sure that caches are disabled to generate reproducible release builds
-        run: ./gradlew --no-build-cache --no-configuration-cache app:assembleRelease
+        # Use build cache to speed up building of build variants, but clean caches from previous tests before
+        run: ./gradlew --build-cache --configuration-cache --no-daemon app:clean app:assembleRelease
         env:
           ANDROID_KEYSTORE: ${{ github.workspace }}/keystore.jks
           ANDROID_KEYSTORE_PASSWORD: ${{ secrets.android_keystore_password }}
@@ -44,10 +39,9 @@ jobs:
           ANDROID_KEY_PASSWORD: ${{ secrets.android_key_password }}
 
       - name: Create Github release
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
         with:
           prerelease: ${{ env.prerelease }}
           files: app/build/outputs/apk/ose/release/*.apk
           fail_on_unmatched_files: true
           generate_release_notes: true
-          discussion_category_name: Announcements

.github/workflows/test-dev.yml

@@ -2,101 +2,135 @@ name: Development tests
 on:
   push:
     branches:
-      - '*'
+      - 'main-ose'
+  pull_request:
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: test-dev-${{ github.ref }}
   cancel-in-progress: true
 
+# We provide a remote gradle build cache. Take the settings from the secrets and enable
+# configuration and build cache for all gradle jobs.
+#
+# Note: The secrets are not available for forks and Dependabot PRs.
+env:
+  GRADLE_BUILDCACHE_URL: ${{ secrets.gradle_buildcache_url }}
+  GRADLE_BUILDCACHE_USERNAME: ${{ secrets.gradle_buildcache_username }}
+  GRADLE_BUILDCACHE_PASSWORD: ${{ secrets.gradle_buildcache_password }}
+  GRADLE_OPTS: -Dorg.gradle.caching=true -Dorg.gradle.configuration-cache=true
+
 jobs:
-  test:
-    name: Tests without emulator
+  compile:
+    name: Compile
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-java@v4
+      - uses: actions/checkout@v6
+      - uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 17
-      - uses: gradle/actions/setup-gradle@v3
+          java-version: 21
 
-      - name: Create app/build and gradle configuration cache
-        if: ${{ github.ref == 'refs/heads/dev-ose' }}
-        uses: actions/cache@v4
+      # See https://community.gradle.org/github-actions/docs/setup-gradle/ for more information
+      - uses: gradle/actions/setup-gradle@v5
         with:
-          key: app_build-tests-without-emulator-${{ github.run_id }}
-          path: |
-            .gradle/configuration-cache
-            app/build
-      - name: Use app/build and gradle configuration cache
-        if: ${{ github.ref != 'refs/heads/dev-ose' }}
-        uses: actions/cache/restore@v4
-        with:
-          key: app_build-tests-without-emulator
-          restore-keys: app_build-tests-without-emulator-   # restore cache from dev branch
-          path: |
-            .gradle/configuration-cache
-            app/build
+          cache-encryption-key: ${{ secrets.gradle_encryption_key }}
+          cache-read-only: false                            # allow branches to update their configuration cache
+          gradle-home-cache-excludes: caches/build-cache-1  # don't cache local build cache because we use a remote cache
 
-      - name: Run lint and unit tests
-        run: ./gradlew app:check
-      - name: Archive results
-        uses: actions/upload-artifact@v4
+      - name: Cache Android environment
+        uses: actions/cache@v5
         with:
-          name: test-results
-          path: |
-            app/build/outputs/lint*
-            app/build/reports
-          overwrite: true
+          path: ~/.config/.android                          # needs to be cached so that configuration cache can work
+          key: android-${{ hashFiles('app/build.gradle.kts') }}
 
-  test_on_emulator:
-    name: Tests with emulator
-    runs-on: ubuntu-latest-4-cores
+      - name: Compile
+        run: ./gradlew app:compileOseDebugSource
+
+      # Cache configurations for the other jobs (including assemble for CodeQL)
+      - name: Populate configuration cache
+        run: |
+          ./gradlew --dry-run core:assembleDebug app:assembleDebug
+          ./gradlew --dry-run core:lintDebug app:lintOseDebug
+          ./gradlew --dry-run core:testDebugUnitTest app:testOseDebugUnitTest
+          ./gradlew --dry-run core:virtualDebugAndroidTest app:virtualOseDebugAndroidTest
+
+  unit_tests:
+    needs: compile
+    name: Lint and unit tests
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-java@v4
+      - uses: actions/checkout@v6
+      - uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 17
-      - uses: gradle/actions/setup-gradle@v3
-
-      - name: Create app/build and gradle configuration cache
-        if: ${{ github.ref == 'refs/heads/dev-ose' }}
-        uses: actions/cache@v4
+          java-version: 21
+      - uses: gradle/actions/setup-gradle@v5
         with:
-          key: app_build-tests-without-emulator-${{ github.run_id }}
-          path: |
-            .gradle/configuration-cache
-            app/build
-      - name: Use app/build and gradle configuration cache
-        if: ${{ github.ref != 'refs/heads/dev-ose' }}
-        uses: actions/cache/restore@v4
-        with:
-          key: app_build-tests-without-emulator
-          restore-keys: app_build-tests-without-emulator-   # restore cache from dev branch
-          path: |
-            .gradle/configuration-cache
-            app/build
+          cache-encryption-key: ${{ secrets.gradle_encryption_key }}
+          cache-read-only: true
 
+      - name: Restore Android environment
+        uses: actions/cache/restore@v5
+        with:
+          path: ~/.config/.android
+          key: android-${{ hashFiles('app/build.gradle.kts') }}
+
+      - name: Lint checks
+        run: ./gradlew core:lintDebug app:lintOseDebug
+
+      - name: Unit tests
+        run: ./gradlew core:testDebugUnitTest app:testOseDebugUnitTest
+
+  instrumented_tests:
+    needs: compile
+    name: Instrumented tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-java@v5
+        with:
+          distribution: temurin
+          java-version: 21
+      - uses: gradle/actions/setup-gradle@v5
+        with:
+          cache-encryption-key: ${{ secrets.gradle_encryption_key }}
+          cache-read-only: true
+
+      - name: Restore Android environment
+        uses: actions/cache/restore@v5
+        with:
+          path: ~/.config/.android
+          key: android-${{ hashFiles('app/build.gradle.kts') }}
+
+      # gradle and Android SDK often take more space than what is available on the default runner.
+      # We try to free a few GB here to make gradle-managed devices more reliable.
+      - name: Free some disk space
+        uses: jlumbroso/free-disk-space@main
+        with:
+          android: false          # we need the Android SDK
+          large-packages: false   # apt takes too long
+          swap-storage: false     # gradle needs much memory
+
+      - name: Restore AVD
+        id: restore-avd
+        uses: actions/cache/restore@v5
+        with:
+          path: ~/.config/.android/avd                        # where AVD is stored
+          key: avd-${{ hashFiles('app/build.gradle.kts') }}   # gradle-managed devices are defined there
+
+      # Enable virtualization for Android emulator
       - name: Enable KVM group perms
         run: |
           echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
           sudo udevadm control --reload-rules
           sudo udevadm trigger --name-match=kvm
 
+      - name: Instrumented tests
+        run: ./gradlew core:virtualDebugAndroidTest app:virtualOseDebugAndroidTest
+
       - name: Cache AVD
-        uses: actions/cache@v4
+        uses: actions/cache/save@v5
+        if: steps.restore-avd.outputs.cache-hit != 'true'
         with:
-          path: ~/.config/.android/avd
+          path: ~/.config/.android/avd                        # where AVD is stored
           key: avd-${{ hashFiles('app/build.gradle.kts') }}   # gradle-managed devices are defined there
-
-      - name: Run device tests
-        run: ./gradlew --no-daemon app:virtualCheck
-
-      - name: Archive results
-        if: always()
-        uses: actions/upload-artifact@v4
-        with:
-          name: test-results
-          path: app/build/reports
-          overwrite: true

.gitignore

@@ -8,17 +8,14 @@
 # Files for the Dalvik VM
 *.dex
 
-# Java class files
+# Java/Kotlin
 *.class
+.kotlin/
 
 # Generated files
 bin/
 gen/
 
-# Gradle files
-.gradle/
-build/
-
 # Local configuration file (sdk path, etc)
 local.properties
 

.idea/codeStyles/Project.xml

@@ -0,0 +1,9 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <option name="LINE_SEPARATOR" value="&#10;" />
+    <option name="RIGHT_MARGIN" value="180" />
+    <codeStyleSettings language="kotlin">
+      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+    </codeStyleSettings>
+  </code_scheme>
+</component>

.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </state>
+</component>

.idea/copyright/LICENSE.xml

@@ -0,0 +1,6 @@
+<component name="CopyrightManager">
+  <copyright>
+    <option name="notice" value="Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details." />
+    <option name="myName" value="LICENSE" />
+  </copyright>
+</component>

.idea/copyright/profiles_settings.xml

@@ -0,0 +1,3 @@
+<component name="CopyrightManager">
+  <settings default="LICENSE" />
+</component>

.tx/config

@@ -1,30 +0,0 @@
-[main]
-host     = https://www.transifex.com
-lang_map = ar_SA: ar, en_GB: en-rGB, fa_IR: fa-rIR, fi_FI: fi, fr_FR: fr-rFR, nb_NO: nb, sk_SK: sk, sl_SI: sl, tr_TR: tr, zh_CN: zh, zh_TW: zh-rTW
-
-[o:bitfireAT:p:davx5:r:app]
-file_filter   = app/src/main/res/values-<lang>/strings.xml
-source_file   = app/src/main/res/values/strings.xml
-source_lang   = en
-type          = ANDROID
-minimum_perc  = 20
-resource_name = App strings (all flavors)
-
-
-# Attention: fastlane directories are like "en-us", not "en-rUS"!
-
-[o:bitfireAT:p:davx5:r:metadata-short-description]
-file_filter   = fastlane/metadata/android/<lang>/short_description.txt
-source_file   = fastlane/metadata/android/en-US/short_description.txt
-source_lang   = en
-type          = TXT
-minimum_perc  = 100
-resource_name = Metadata: short description
-
-[o:bitfireAT:p:davx5:r:metadata-full-description]
-file_filter   = fastlane/metadata/android/<lang>/full_description.txt
-source_file   = fastlane/metadata/android/en-US/full_description.txt
-source_lang   = en
-type          = TXT
-minimum_perc  = 100
-resource_name = Metadata: full description

AUTHORS

@@ -1,11 +1,7 @@
-# This is the list of significant contributors to DAVx5.
-#
-# This does not necessarily list everyone who has contributed work.
-# To see the full list of contributors, see the revision history in
-# source control.
+You can view the list of people who have contributed to the code base in the version control history:
+https://github.com/bitfireAT/davx5-ose/graphs/contributors
 
-Ricki Hirner (bitfire.at)
-Bernhard Stockmann (bitfire.at)
+Translators are not mentioned in the history explicitly.
+The list of translators can be found in the About screen.
 
-Sunik Kupfer (bitfire.at)
-Patrick Lang (techbee.at)
+Every contribution is welcome. There are many other forms of contributing besides writing code!

CONTRIBUTING.md

@@ -14,24 +14,11 @@ If you send us a pull request, our CLA bot will ask you to sign the
 Contributor's License Agreement so that we can use your contribution.
 
 
-# Copyright
+# Copyright notice
 
 Make sure that every file that contains significant work (at least every code file)
-starts with the copyright header:
-
-```
-/*
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- */
-```
-
-You can set this in Android Studio:
-
-1. Settings / Editor / Copyright / Copyright Profiles
-2. Paste the text above (without the stars).
-3. Set Formatting so that the preview exactly looks like above; one blank line after the block.
-4. Set this copyright profile as the default profile for the project.
-5. Apply copyright: right-click in file tree / Update copyright.
+starts with the copyright header. Android Studio should do so automatically because the
+configuration is stored in the repository (`.idea/copyright`).
 
 
 # Style guide
@@ -110,8 +97,3 @@ Test classes should be in the appropriate directory (see existing tests) and in
 tested class. Tests are usually be named like `methodToBeTested_Condition()`, see
 [Test apps on Android](https://developer.android.com/training/testing/).
 
-
-# Authors
-
-If you make significant contributions, feel free to add yourself to the [AUTHORS file](AUTHORS).
-

README.md

@@ -1,9 +1,9 @@
 
-[![Website](https://img.shields.io/website?style=flat-square&up_color=%237cb342&url=https%3A%2F%2Fwww.davx5.com)](https://www.davx5.com/)
-[![F-Droid](https://img.shields.io/f-droid/v/at.bitfire.davdroid?style=flat-square)](https://f-droid.org/packages/at.bitfire.davdroid/)
-[![License](https://img.shields.io/github/license/bitfireAT/davx5-ose?style=flat-square)](https://github.com/bitfireAT/davx5-ose/blob/main/LICENSE)
 [![Follow @davx5app@fosstodon.org](https://img.shields.io/mastodon/follow/109598783742737223?domain=https%3A%2F%2Ffosstodon.org&style=flat-square)](https://fosstodon.org/@davx5app)
-[![Development tests](https://github.com/bitfireAT/davx5-ose/actions/workflows/test-dev.yml/badge.svg)](https://github.com/bitfireAT/davx5-ose/actions/workflows/test-dev.yml)
+[![Website](https://img.shields.io/website?style=flat-square&up_color=%237cb342&url=https%3A%2F%2Fwww.davx5.com)](https://www.davx5.com/)
+[![License](https://img.shields.io/github/license/bitfireAT/davx5-ose?style=flat-square)](https://github.com/bitfireAT/davx5-ose/blob/main/LICENSE)
+[![F-Droid](https://img.shields.io/f-droid/v/at.bitfire.davdroid?style=flat-square)](https://f-droid.org/packages/at.bitfire.davdroid/)
+![GitHub Downloads (all assets, all releases)](https://img.shields.io/github/downloads/bitfireAT/davx5-ose/total?label=GitHub%20downloads)
 
 ![DAVx⁵ logo](app/src/main/res/mipmap-xxxhdpi/ic_launcher.png)
 
@@ -11,8 +11,10 @@
 DAVx⁵
 ========
 
-Please see the [DAVx⁵ Web site](https://www.davx5.com) for
-comprehensive information about DAVx⁵, including a list of services it has been tested with.
+> [!IMPORTANT]
+> Please see the [DAVx⁵ Web site](https://www.davx5.com) for
+> comprehensive information about DAVx⁵, including a list of services it has been tested with,
+> a manual and FAQ.
 
 DAVx⁵ is licensed under the [GPLv3 License](LICENSE).
 
@@ -26,8 +28,7 @@ Parts of DAVx⁵ have been outsourced into these libraries:
 
 * [cert4android](https://github.com/bitfireAT/cert4android) – custom certificate management
 * [dav4jvm](https://github.com/bitfireAT/dav4jvm) – WebDAV/CalDav/CardDAV framework
-* [ical4android](https://github.com/bitfireAT/ical4android) – iCalendar processing and Calendar Provider access
-* [vcard4android](https://github.com/bitfireAT/vcard4android) – vCard processing and Contacts Provider access
+* [synctools](https://github.com/bitfireAT/synctools) – iCalendar/vCard/Tasks processing and content provider access
 
 **If you want to support DAVx⁵, please consider [donating to DAVx⁵](https://www.davx5.com/donate)
 or [purchasing it](https://www.davx5.com/download).**

app-ose/build.gradle.kts

@@ -0,0 +1,132 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.compose.compiler)
+    alias(libs.plugins.hilt)
+    alias(libs.plugins.ksp)
+}
+
+android {
+    compileSdk = 36
+
+    defaultConfig {
+        minSdk = 24        // Android 7.0
+        targetSdk = 36     // Android 16
+
+        applicationId = "at.bitfire.davdroid"
+
+        versionCode = 405090005
+        versionName = "4.5.9"
+
+        //base.archivesName = "davx5-$versionCode-$versionName"
+    }
+
+    java {
+        toolchain {
+            languageVersion = JavaLanguageVersion.of(21)
+        }
+    }
+
+    compileOptions {
+        isCoreLibraryDesugaringEnabled = true
+    }
+
+    buildFeatures {
+        compose = true
+    }
+
+    // Java namespace for our classes (not to be confused with Android package ID)
+    namespace = "com.davx5.ose"
+
+    flavorDimensions += "distribution"
+    productFlavors {
+        create("ose") {
+            dimension = "distribution"
+            versionNameSuffix = "-ose"
+        }
+    }
+
+    sourceSets {
+        getByName("androidTest") {
+            assets.srcDir("$projectDir/schemas")
+        }
+    }
+
+    androidResources {
+        generateLocaleConfig = true
+    }
+
+    buildTypes {
+        getByName("release") {
+            isMinifyEnabled = true
+            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules-release.pro")
+
+            isShrinkResources = true
+
+            signingConfig = signingConfigs.findByName("bitfire")
+        }
+    }
+
+    signingConfigs {
+        create("bitfire") {
+            storeFile = file(System.getenv("ANDROID_KEYSTORE") ?: "/dev/null")
+            storePassword = System.getenv("ANDROID_KEYSTORE_PASSWORD")
+            keyAlias = System.getenv("ANDROID_KEY_ALIAS")
+            keyPassword = System.getenv("ANDROID_KEY_PASSWORD")
+        }
+    }
+
+    @Suppress("UnstableApiUsage")
+    testOptions {
+        managedDevices {
+            localDevices {
+                create("virtual") {
+                    device = "Pixel 3"
+                    // TBD: API level 35 and higher causes network tests to fail sometimes, see https://github.com/bitfireAT/davx5-ose/issues/1525
+                    // Suspected reason: https://developer.android.com/about/versions/15/behavior-changes-all#background-network-access
+                    apiLevel = 34
+                    systemImageSource = "aosp-atd"
+                }
+            }
+        }
+    }
+}
+
+dependencies {
+    // include core module
+    implementation(project(":core"))
+
+    // Kotlin / Android
+    implementation(libs.kotlin.stdlib)
+    implementation(libs.kotlinx.coroutines)
+    coreLibraryDesugaring(libs.android.desugaring)
+
+    // Hilt
+    implementation(libs.hilt.android.base)
+    ksp(libs.androidx.hilt.compiler)
+    ksp(libs.hilt.android.compiler)
+
+    // support libs
+    implementation(libs.androidx.core)
+    implementation(libs.androidx.hilt.work)
+    implementation(libs.androidx.lifecycle.viewmodel.base)
+    implementation(libs.androidx.lifecycle.viewmodel.compose)
+    implementation(libs.androidx.work.base)
+
+    // Jetpack Compose
+    implementation(platform(libs.androidx.compose.bom))
+    implementation(libs.androidx.compose.material3)
+    debugImplementation(libs.androidx.compose.ui.tooling)
+    implementation(libs.androidx.compose.ui.toolingPreview)
+
+    // own libraries
+    implementation(libs.bitfire.cert4android)
+
+    // third-party libs
+    implementation(libs.guava)
+    implementation(libs.okhttp.base)
+    implementation(libs.openid.appauth)
+}

app-ose/src/main/AndroidManifest.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        android:installLocation="internalOnly">
+
+    <application android:name=".App"/>
+
+</manifest>

app-ose/src/main/kotlin/com/davx5/ose/App.kt

@@ -0,0 +1,83 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose
+
+import android.app.Application
+import androidx.hilt.work.HiltWorkerFactory
+import androidx.work.Configuration
+import at.bitfire.davdroid.di.scope.DefaultDispatcher
+import at.bitfire.davdroid.log.LogManager
+import at.bitfire.davdroid.startup.StartupPlugin
+import at.bitfire.davdroid.sync.account.AccountsCleanupWorker
+import at.bitfire.davdroid.ui.UiUtils
+import dagger.hilt.android.HiltAndroidApp
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.DelicateCoroutinesApi
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
+import java.util.logging.Logger
+import javax.inject.Inject
+
+@HiltAndroidApp
+class App: Application(), Configuration.Provider {
+
+    @Inject
+    lateinit var logger: Logger
+
+    /**
+     * Creates the [at.bitfire.davdroid.log.LogManager] singleton and thus initializes logging.
+     */
+    @Inject
+    lateinit var logManager: LogManager
+
+    @Inject
+    @DefaultDispatcher
+    lateinit var defaultDispatcher: CoroutineDispatcher
+
+    @Inject
+    lateinit var plugins: Set<@JvmSuppressWildcards StartupPlugin>
+
+    @Inject
+    lateinit var workerFactory: HiltWorkerFactory
+
+    override val workManagerConfiguration: Configuration
+        get() = Configuration.Builder()
+            .setWorkerFactory(workerFactory)
+            .build()
+
+
+    override fun onCreate() {
+        super.onCreate()
+
+        logger.fine("Logging using LogManager $logManager")
+
+        // set light/dark mode
+        UiUtils.updateTheme(this)   // when this is called in the asynchronous thread below, it recreates
+                                 // some current activity and causes an IllegalStateException in rare cases
+
+        // run startup plugins (sync)
+        for (plugin in plugins.sortedBy { it.priority() }) {
+            logger.fine("Running startup plugin: $plugin (onAppCreate)")
+            plugin.onAppCreate()
+        }
+
+        // don't block UI for some background checks
+        @OptIn(DelicateCoroutinesApi::class)
+        GlobalScope.launch(defaultDispatcher) {
+            // clean up orphaned accounts in DB from time to time
+            AccountsCleanupWorker.Companion.enable(this@App)
+
+            // create/update app shortcuts
+            UiUtils.updateShortcuts(this@App)
+
+            // run startup plugins (async)
+            for (plugin in plugins.sortedBy { it.priorityAsync() }) {
+                logger.fine("Running startup plugin: $plugin (onAppCreateAsync)")
+                plugin.onAppCreateAsync()
+            }
+        }
+    }
+
+}

app-ose/src/ose/AndroidManifest.xml

@@ -2,7 +2,8 @@
   ~ Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
   -->
 
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
 
     <application>
 
@@ -14,7 +15,10 @@
                 <action android:name="android.intent.action.VIEW"/>
                 <category android:name="android.intent.category.DEFAULT"/>
                 <category android:name="android.intent.category.BROWSABLE"/>
-                <data android:scheme="at.bitfire.davdroid" android:path="/oauth2/redirect"/>
+                <data
+                    tools:ignore="AppLinkUrlError"
+                        android:scheme="${applicationId}"
+                    android:path="/oauth2/redirect"/>
             </intent-filter>
         </activity>
 

app-ose/src/ose/kotlin/com/davx5/ose/DebugInfoCrashHandler.kt

@@ -0,0 +1,50 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose
+
+import android.content.Context
+import at.bitfire.davdroid.ui.DebugInfoActivity
+import dagger.Binds
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import java.util.logging.Level
+import java.util.logging.Logger
+import javax.inject.Inject
+
+class DebugInfoCrashHandler @Inject constructor(
+    @ApplicationContext private val context: Context,
+    private val logger: Logger
+): Thread.UncaughtExceptionHandler {
+
+    @Module
+    @InstallIn(SingletonComponent::class)
+    interface DebugInfoCrashHandlerModule {
+        @Binds
+        fun debugInfoCrashHandler(
+            debugInfoCrashHandler: DebugInfoCrashHandler
+        ): Thread.UncaughtExceptionHandler
+    }
+
+    // See https://developer.android.com/about/versions/oreo/android-8.0-changes#loue
+    val originalCrashHandler = Thread.getDefaultUncaughtExceptionHandler()
+
+
+    override fun uncaughtException(t: Thread, e: Throwable) {
+        logger.log(Level.SEVERE, "Unhandled exception in thread ${t.id}!", e)
+
+        // start debug info activity with exception (will be started in a new process)
+        val intent = DebugInfoActivity.IntentBuilder(context)
+            .withCause(e)
+            .newTask()
+            .build()
+        context.startActivity(intent)
+
+        // pass through to default handler to kill the process
+        originalCrashHandler?.uncaughtException(t, e)
+    }
+
+}

app-ose/src/ose/kotlin/com/davx5/ose/di/CustomCertManagerModule.kt

@@ -0,0 +1,61 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose.di
+
+import android.content.Context
+import at.bitfire.cert4android.CustomCertManager
+import at.bitfire.cert4android.CustomCertStore
+import at.bitfire.cert4android.SettingsProvider
+import at.bitfire.davdroid.settings.Settings
+import at.bitfire.davdroid.settings.SettingsManager
+import at.bitfire.davdroid.ui.ForegroundTracker
+import dagger.Module
+import dagger.Provides
+import dagger.Reusable
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import okhttp3.internal.tls.OkHostnameVerifier
+import java.util.Optional
+
+/**
+ * cert4android integration module
+ */
+@Module
+@InstallIn(SingletonComponent::class)
+class CustomCertManagerModule {
+
+    @Provides
+    fun customCertStore(@ApplicationContext context: Context): Optional<CustomCertStore> =
+        Optional.of(CustomCertStore.getInstance(context))
+
+    @Provides
+    @Reusable
+    fun customCertManager(
+        customCertStore: Optional<CustomCertStore>,
+        settings: SettingsManager
+    ): Optional<CustomCertManager> =
+        Optional.of(
+            CustomCertManager(
+            certStore = customCertStore.get(),
+            settings = object : SettingsProvider {
+
+                override val appInForeground: Boolean
+                    get() = ForegroundTracker.inForeground.value
+
+                override val trustSystemCerts: Boolean
+                    get() = !settings.getBoolean(Settings.DISTRUST_SYSTEM_CERTIFICATES)
+
+            }
+        ))
+
+    @Provides
+    @Reusable
+    fun customHostnameVerifier(
+        customCertManager: Optional<CustomCertManager>
+    ): Optional<CustomCertManager.HostnameVerifier> =
+        Optional.of(customCertManager.get().HostnameVerifier(OkHostnameVerifier))
+
+}

app-ose/src/ose/kotlin/com/davx5/ose/di/OseColorSchemesModule.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose.di
+
+import androidx.compose.material3.ColorScheme
+import at.bitfire.davdroid.di.scope.DarkColorScheme
+import at.bitfire.davdroid.di.scope.LightColorScheme
+import com.davx5.ose.ui.OseTheme
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+
+@Module
+@InstallIn(SingletonComponent::class)
+class OseColorSchemesModule {
+
+    @Provides
+    @LightColorScheme
+    fun lightColorScheme(): ColorScheme = OseTheme.lightScheme
+
+    @Provides
+    @DarkColorScheme
+    fun darkColorScheme(): ColorScheme = OseTheme.darkScheme
+
+}

app-ose/src/ose/kotlin/com/davx5/ose/di/OseFlavorModule.kt

@@ -0,0 +1,51 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose.di
+
+import at.bitfire.davdroid.ui.AccountsDrawerHandler
+import at.bitfire.davdroid.ui.OseAccountsDrawerHandler
+import at.bitfire.davdroid.ui.about.AboutActivity
+import at.bitfire.davdroid.ui.intro.IntroPageFactory
+import at.bitfire.davdroid.ui.setup.LoginTypesProvider
+import com.davx5.ose.ui.about.OpenSourceLicenseInfoProvider
+import com.davx5.ose.ui.intro.OseIntroPageFactory
+import com.davx5.ose.ui.setup.StandardLoginTypesProvider
+import dagger.Binds
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.android.components.ActivityComponent
+import dagger.hilt.android.components.ViewModelComponent
+import dagger.hilt.components.SingletonComponent
+
+interface OseModules {
+
+    @Module
+    @InstallIn(ActivityComponent::class)
+    interface ForActivities {
+        @Binds
+        fun accountsDrawerHandler(impl: OseAccountsDrawerHandler): AccountsDrawerHandler
+
+        @Binds
+        fun loginTypesProvider(impl: StandardLoginTypesProvider): LoginTypesProvider
+    }
+
+    @Module
+    @InstallIn(ViewModelComponent::class)
+    interface ForViewModels {
+        @Binds
+        fun appLicenseInfoProvider(impl: OpenSourceLicenseInfoProvider): AboutActivity.AppLicenseInfoProvider
+
+        @Binds
+        fun loginTypesProvider(impl: StandardLoginTypesProvider): LoginTypesProvider
+    }
+
+    @Module
+    @InstallIn(SingletonComponent::class)
+    interface Global {
+        @Binds
+        fun introPageFactory(impl: OseIntroPageFactory): IntroPageFactory
+    }
+
+}

app-ose/src/ose/kotlin/com/davx5/ose/ui/OseTheme.kt

@@ -0,0 +1,166 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose.ui
+
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.ui.graphics.Color
+
+object OseTheme {
+
+    // All colors hand-crafted because Material Theme Builder generates unbelievably ugly colors
+
+    val primaryLight = Color(0xFF7cb342)
+    val onPrimaryLight = Color(0xFFffffff)
+    val primaryContainerLight = Color(0xFFb4e47d)
+    val onPrimaryContainerLight = Color(0xFF232d18)
+    val secondaryLight = Color(0xFFff7f2a)
+    val onSecondaryLight = Color(0xFFFFFFFF)
+    val secondaryContainerLight = Color(0xFFffa565)
+    val onSecondaryContainerLight = Color(0xFF3a271b)
+    val tertiaryLight = Color(0xFF658a24)
+    val onTertiaryLight = Color(0xFFFFFFFF)
+    val tertiaryContainerLight = Color(0xFFb0d08e)
+    val onTertiaryContainerLight = Color(0xFF263015)
+    val errorLight = Color(0xFFd71717)
+    val onErrorLight = Color(0xFFFFFFFF)
+    val errorContainerLight = Color(0xFFefb6b6)
+    val onErrorContainerLight = Color(0xFF3a0b0b)
+    val backgroundLight = Color(0xFFfcfcfc)
+    val onBackgroundLight = Color(0xFF2a2a2a)
+    val surfaceLight = Color(0xFFf5f5f5)
+    val onSurfaceLight = Color(0xFF4d4d4d)
+    val surfaceVariantLight = Color(0xFFe4e4e4)
+    val onSurfaceVariantLight = Color(0xFF2a2a2a)
+    val outlineLight = Color(0xFF838383)
+    val outlineVariantLight = Color(0xFFd4d4d4)
+    val scrimLight = Color(0xFF000000)
+    val inverseSurfaceLight = Color(0xFF2e322b)
+    val inverseOnSurfaceLight = Color(0xFFfafaf8)
+    val inversePrimaryLight = Color(0xFFb4e47d)
+    val surfaceDimLight = Color(0xFFe3e3e3)
+    val surfaceBrightLight = Color(0xFFf9f9f9)
+    val surfaceContainerLowestLight = Color(0xFFFFFFFF)
+    val surfaceContainerLowLight = Color(0xFFfafafa)
+    val surfaceContainerLight = Color(0xFFf5f5f5)
+    val surfaceContainerHighLight = Color(0xFFf0f0ef)
+    val surfaceContainerHighestLight = Color(0xFFebebea)
+
+    val primaryDark = Color(0xFFc4e3a4)
+    val onPrimaryDark = Color(0xFF2b4310)
+    val primaryContainerDark = Color(0xFF7cb342)
+    val onPrimaryContainerDark = Color(0xFFedf5e4)
+    val secondaryDark = Color(0xFFe5c3ac)
+    val onSecondaryDark = Color(0xFF3e332e)
+    val secondaryContainerDark = Color(0xFFff7f2a)
+    val onSecondaryContainerDark = Color(0xFFffeadb)
+    val tertiaryDark = Color(0xFFc6e597)
+    val onTertiaryDark = Color(0xFF4b661b)
+    val tertiaryContainerDark = Color(0xFF658a24)
+    val onTertiaryContainerDark = Color(0xFFf0f8e2)
+    val errorDark = Color(0xFFf6d0d0)
+    val onErrorDark = Color(0xFF4f1212)
+    val errorContainerDark = Color(0xFFe93434)
+    val onErrorContainerDark = Color(0xFFfcdede)
+    val backgroundDark = Color(0xFF1a1a1a)
+    val onBackgroundDark = Color(0xFFf0f0f0)
+    val surfaceDark = Color(0xFF292929)
+    val onSurfaceDark = Color(0xFFdedede)
+    val surfaceVariantDark = Color(0xFF363636)
+    val onSurfaceVariantDark = Color(0xFFededed)
+    val outlineDark = Color(0xFFa3a3a3)
+    val outlineVariantDark = Color(0xFF7cb342)
+    val scrimDark = Color(0xFF000000)
+    val inverseSurfaceDark = Color(0xFFdbdbdb)
+    val inverseOnSurfaceDark = Color(0xFF292929)
+    val inversePrimaryDark = Color(0xFF7cb342)
+    val surfaceDimDark = Color(0xFF333333)
+    val surfaceBrightDark = Color(0xFF4d4d4d)
+    val surfaceContainerLowestDark = Color(0xFF141414)
+    val surfaceContainerLowDark = Color(0xFF1f1f1f)
+    val surfaceContainerDark = Color(0xff3a3a3a)
+    val surfaceContainerHighDark = Color(0xFF383838)
+    val surfaceContainerHighestDark = Color(0xFF434343)
+
+
+    // Copied from Material Theme Builder: Theme.kt
+
+    val lightScheme = lightColorScheme(
+        primary = primaryLight,
+        onPrimary = onPrimaryLight,
+        primaryContainer = primaryContainerLight,
+        onPrimaryContainer = onPrimaryContainerLight,
+        secondary = secondaryLight,
+        onSecondary = onSecondaryLight,
+        secondaryContainer = secondaryContainerLight,
+        onSecondaryContainer = onSecondaryContainerLight,
+        tertiary = tertiaryLight,
+        onTertiary = onTertiaryLight,
+        tertiaryContainer = tertiaryContainerLight,
+        onTertiaryContainer = onTertiaryContainerLight,
+        error = errorLight,
+        onError = onErrorLight,
+        errorContainer = errorContainerLight,
+        onErrorContainer = onErrorContainerLight,
+        background = backgroundLight,
+        onBackground = onBackgroundLight,
+        surface = surfaceLight,
+        onSurface = onSurfaceLight,
+        surfaceVariant = surfaceVariantLight,
+        onSurfaceVariant = onSurfaceVariantLight,
+        outline = outlineLight,
+        outlineVariant = outlineVariantLight,
+        scrim = scrimLight,
+        inverseSurface = inverseSurfaceLight,
+        inverseOnSurface = inverseOnSurfaceLight,
+        inversePrimary = inversePrimaryLight,
+        surfaceDim = surfaceDimLight,
+        surfaceBright = surfaceBrightLight,
+        surfaceContainerLowest = surfaceContainerLowestLight,
+        surfaceContainerLow = surfaceContainerLowLight,
+        surfaceContainer = surfaceContainerLight,
+        surfaceContainerHigh = surfaceContainerHighLight,
+        surfaceContainerHighest = surfaceContainerHighestLight,
+    )
+
+    val darkScheme = darkColorScheme(
+        primary = primaryDark,
+        onPrimary = onPrimaryDark,
+        primaryContainer = primaryContainerDark,
+        onPrimaryContainer = onPrimaryContainerDark,
+        secondary = secondaryDark,
+        onSecondary = onSecondaryDark,
+        secondaryContainer = secondaryContainerDark,
+        onSecondaryContainer = onSecondaryContainerDark,
+        tertiary = tertiaryDark,
+        onTertiary = onTertiaryDark,
+        tertiaryContainer = tertiaryContainerDark,
+        onTertiaryContainer = onTertiaryContainerDark,
+        error = errorDark,
+        onError = onErrorDark,
+        errorContainer = errorContainerDark,
+        onErrorContainer = onErrorContainerDark,
+        background = backgroundDark,
+        onBackground = onBackgroundDark,
+        surface = surfaceDark,
+        onSurface = onSurfaceDark,
+        surfaceVariant = surfaceVariantDark,
+        onSurfaceVariant = onSurfaceVariantDark,
+        outline = outlineDark,
+        outlineVariant = outlineVariantDark,
+        scrim = scrimDark,
+        inverseSurface = inverseSurfaceDark,
+        inverseOnSurface = inverseOnSurfaceDark,
+        inversePrimary = inversePrimaryDark,
+        surfaceDim = surfaceDimDark,
+        surfaceBright = surfaceBrightDark,
+        surfaceContainerLowest = surfaceContainerLowestDark,
+        surfaceContainerLow = surfaceContainerLowDark,
+        surfaceContainer = surfaceContainerDark,
+        surfaceContainerHigh = surfaceContainerHighDark,
+        surfaceContainerHighest = surfaceContainerHighestDark,
+    )
+
+}

app-ose/src/ose/kotlin/com/davx5/ose/ui/about/OpenSourceLicenseInfoProvider.kt

@@ -0,0 +1,76 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose.ui.about
+
+import android.content.Context
+import android.text.Spanned
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.core.text.HtmlCompat
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import androidx.lifecycle.viewmodel.compose.viewModel
+import at.bitfire.davdroid.di.scope.IoDispatcher
+import at.bitfire.davdroid.ui.UiUtils.toAnnotatedString
+import at.bitfire.davdroid.ui.about.AboutActivity
+import com.google.common.io.CharStreams
+import dagger.hilt.android.lifecycle.HiltViewModel
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+class OpenSourceLicenseInfoProvider @Inject constructor(): AboutActivity.AppLicenseInfoProvider {
+
+    @Composable
+    override fun LicenseInfo() {
+        LicenseInfoGpl()
+    }
+
+    @Composable
+    fun LicenseInfoGpl(
+        model: Model = viewModel()
+    ) {
+        model.gpl?.let { OpenSourceLicenseInfo(it.toAnnotatedString()) }
+    }
+
+
+    @HiltViewModel
+    class Model @Inject constructor(
+        @ApplicationContext private val context: Context,
+        @IoDispatcher private val ioDispatcher: CoroutineDispatcher
+    ): ViewModel() {
+
+        var gpl by mutableStateOf<Spanned?>(null)
+
+        init {
+            viewModelScope.launch(ioDispatcher) {
+                context.resources.assets.open("gplv3.html").use { inputStream ->
+                    val raw = CharStreams.toString(inputStream.bufferedReader())
+                    gpl = HtmlCompat.fromHtml(raw, HtmlCompat.FROM_HTML_MODE_LEGACY)
+                }
+            }
+        }
+
+    }
+
+}
+
+
+@Composable
+fun OpenSourceLicenseInfo(license: AnnotatedString) {
+    Text(text = license)
+}
+
+@Composable
+@Preview
+fun OpenSourceLicenseInfo_Preview() {
+    OpenSourceLicenseInfo(AnnotatedString("It's open-source."))
+}

app-ose/src/ose/kotlin/com/davx5/ose/ui/intro/OseIntroPageFactory.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose.ui.intro
+
+import at.bitfire.davdroid.ui.intro.BackupsPage
+import at.bitfire.davdroid.ui.intro.BatteryOptimizationsPage
+import at.bitfire.davdroid.ui.intro.IntroPageFactory
+import at.bitfire.davdroid.ui.intro.OpenSourcePage
+import at.bitfire.davdroid.ui.intro.PermissionsIntroPage
+import at.bitfire.davdroid.ui.intro.TasksIntroPage
+import at.bitfire.davdroid.ui.intro.WelcomePage
+import javax.inject.Inject
+
+class OseIntroPageFactory @Inject constructor(
+    backupsPage: BackupsPage,
+    batteryOptimizationsPage: BatteryOptimizationsPage,
+    openSourcePage: OpenSourcePage,
+    permissionsIntroPage: PermissionsIntroPage,
+    tasksIntroPage: TasksIntroPage
+): IntroPageFactory {
+
+    override val introPages = arrayOf(
+        WelcomePage(),
+        tasksIntroPage,
+        permissionsIntroPage,
+        batteryOptimizationsPage,
+        backupsPage,
+        openSourcePage
+    )
+
+}

app-ose/src/ose/kotlin/com/davx5/ose/ui/setup/StandardLoginTypePage.kt

@@ -0,0 +1,125 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose.ui.setup
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.RadioButton
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.core.text.HtmlCompat
+import at.bitfire.davdroid.R
+import at.bitfire.davdroid.ui.ExternalUris
+import at.bitfire.davdroid.ui.ExternalUris.withStatParams
+import at.bitfire.davdroid.ui.UiUtils.toAnnotatedString
+import at.bitfire.davdroid.ui.composable.Assistant
+import at.bitfire.davdroid.ui.setup.LoginInfo
+import at.bitfire.davdroid.ui.setup.LoginType
+
+@Composable
+fun StandardLoginTypePage(
+    selectedLoginType: LoginType,
+    onSelectLoginType: (LoginType) -> Unit,
+
+    @Suppress("unused")   // for build variants
+    setInitialLoginInfo: (LoginInfo) -> Unit,
+    
+    onContinue: () -> Unit = {}
+) {
+    Assistant(
+        nextLabel = stringResource(R.string.login_continue),
+        nextEnabled = true,
+        onNext = onContinue
+    ) {
+        Column(Modifier.padding(8.dp)) {
+            Text(
+                stringResource(R.string.login_generic_login),
+                style = MaterialTheme.typography.headlineSmall,
+                modifier = Modifier.padding(vertical = 8.dp)
+            )
+            for (type in StandardLoginTypesProvider.genericLoginTypes)
+                LoginTypeSelector(
+                    title = stringResource(type.title),
+                    selected = type == selectedLoginType,
+                    onSelect = { onSelectLoginType(type) }
+                )
+
+            Text(
+                stringResource(R.string.login_provider_login),
+                style = MaterialTheme.typography.headlineSmall,
+                modifier = Modifier.padding(top = 16.dp, bottom = 8.dp)
+            )
+            for (type in StandardLoginTypesProvider.specificLoginTypes)
+                LoginTypeSelector(
+                    title = stringResource(type.title),
+                    selected = type == selectedLoginType,
+                    onSelect = { onSelectLoginType(type) }
+                )
+
+            HorizontalDivider(Modifier.padding(vertical = 12.dp))
+
+            val context = LocalContext.current
+            val privacyPolicy = ExternalUris.Homepage.baseUrl.buildUpon()
+                .appendPath(ExternalUris.Homepage.PATH_PRIVACY)
+                .withStatParams(context, "StandardLoginTypePage")
+                .build().toString()
+            val privacy = HtmlCompat.fromHtml(
+                stringResource(R.string.login_privacy_hint, stringResource(R.string.app_name), privacyPolicy),
+                HtmlCompat.FROM_HTML_MODE_COMPACT)
+            Text(
+                text = privacy.toAnnotatedString(),
+                style = MaterialTheme.typography.bodyMedium
+            )
+        }
+    }
+}
+
+@Composable
+fun LoginTypeSelector(
+    title: String,
+    selected: Boolean,
+    onSelect: () -> Unit = {}
+) {
+    Column {
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+            modifier = Modifier
+                .clickable(onClick = onSelect)
+                .padding(bottom = 4.dp)
+        ) {
+            RadioButton(
+                selected = selected,
+                onClick = onSelect
+            )
+            Text(
+                title,
+                style = MaterialTheme.typography.bodyLarge,
+                modifier = Modifier.weight(1f)
+            )
+        }
+    }
+}
+
+
+@Composable
+@Preview
+fun StandardLoginTypePage_Preview() {
+    StandardLoginTypePage(
+        selectedLoginType = StandardLoginTypesProvider.genericLoginTypes.first(),
+        onSelectLoginType = {},
+        setInitialLoginInfo = {},
+        onContinue = {}
+    )
+}

app-ose/src/ose/kotlin/com/davx5/ose/ui/setup/StandardLoginTypesProvider.kt

@@ -0,0 +1,76 @@
+/*
+ * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
+ */
+
+package com.davx5.ose.ui.setup
+
+import android.content.Intent
+import androidx.compose.material3.SnackbarHostState
+import androidx.compose.runtime.Composable
+import at.bitfire.davdroid.ui.setup.AdvancedLogin
+import at.bitfire.davdroid.ui.setup.EmailLogin
+import at.bitfire.davdroid.ui.setup.FastmailLogin
+import at.bitfire.davdroid.ui.setup.GoogleLogin
+import at.bitfire.davdroid.ui.setup.LoginActivity
+import at.bitfire.davdroid.ui.setup.LoginInfo
+import at.bitfire.davdroid.ui.setup.LoginType
+import at.bitfire.davdroid.ui.setup.LoginTypesProvider
+import at.bitfire.davdroid.ui.setup.LoginTypesProvider.LoginAction
+import at.bitfire.davdroid.ui.setup.NextcloudLogin
+import at.bitfire.davdroid.ui.setup.UrlLogin
+import java.util.logging.Logger
+import javax.inject.Inject
+
+class StandardLoginTypesProvider @Inject constructor(
+    private val logger: Logger
+) : LoginTypesProvider {
+
+    companion object {
+        val genericLoginTypes = listOf(
+            UrlLogin,
+            EmailLogin,
+            AdvancedLogin
+        )
+
+        val specificLoginTypes = listOf(
+            FastmailLogin,
+            GoogleLogin,
+            NextcloudLogin
+        )
+    }
+
+    override val defaultLoginType = UrlLogin
+
+    override fun intentToInitialLoginType(intent: Intent): LoginAction =
+        intent.data?.normalizeScheme().let { uri ->
+            when {
+                intent.hasExtra(LoginActivity.EXTRA_LOGIN_FLOW) ->
+                    LoginAction(NextcloudLogin, true)
+                uri?.scheme == "mailto" ->
+                    LoginAction(EmailLogin, true)
+                listOf("caldavs", "carddavs", "davx5", "http", "https").any { uri?.scheme == it } ->
+                    LoginAction(UrlLogin, true)
+                else -> {
+                    logger.warning("Did not understand login intent: $intent")
+                    LoginAction(defaultLoginType, false) // Don't skip login type page if intent is unclear
+                }
+            }
+        }
+
+    @Composable
+    override fun LoginTypePage(
+        snackbarHostState: SnackbarHostState,
+        selectedLoginType: LoginType,
+        onSelectLoginType: (LoginType) -> Unit,
+        setInitialLoginInfo: (LoginInfo) -> Unit,
+        onContinue: () -> Unit
+    ) {
+        StandardLoginTypePage(
+            selectedLoginType = selectedLoginType,
+            onSelectLoginType = onSelectLoginType,
+            setInitialLoginInfo = setInitialLoginInfo,
+            onContinue = onContinue
+        )
+    }
+
+}

app/build.gradle.kts

@@ -1,227 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-plugins {
-    alias(libs.plugins.mikepenz.aboutLibraries)
-    alias(libs.plugins.android.application)
-    alias(libs.plugins.hilt)
-    alias(libs.plugins.kotlin.android)
-    alias(libs.plugins.kotlin.kapt)
-    alias(libs.plugins.ksp)
-}
-
-aboutLibraries {
-    // This means that we have to generate the dependencies explicitly:
-    // ./gradlew --no-configuration-cache --no-build-cache -PaboutLibraries.exportPath=src/main/res/raw/ app:exportLibraryDefinitions
-    registerAndroidTasks = false
-}
-
-// Android configuration
-android {
-    compileSdk = 34
-
-    defaultConfig {
-        applicationId = "at.bitfire.davdroid"
-
-        versionCode = 403140002
-        versionName = "4.3.14"
-
-        buildConfigField("long", "buildTime", "${System.currentTimeMillis()}L")
-
-        setProperty("archivesBaseName", "davx5-ose-" + versionName)
-
-        minSdk = 24        // Android 7.0
-        targetSdk = 34     // Android 14
-
-        buildConfigField("String", "userAgent", "\"DAVx5\"")
-
-        testInstrumentationRunner = "at.bitfire.davdroid.CustomTestRunner"
-    }
-
-    compileOptions {
-        // enable because ical4android requires desugaring
-        isCoreLibraryDesugaringEnabled = true
-
-        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_17
-    }
-
-    buildFeatures {
-        buildConfig = true
-        compose = true
-        viewBinding = true
-        dataBinding = true
-    }
-    composeOptions {
-        kotlinCompilerExtensionVersion = libs.versions.compose.compiler.get()
-    }
-
-    // Java namespace for our classes (not to be confused with Android package ID)
-    namespace = "at.bitfire.davdroid"
-
-    flavorDimensions += "distribution"
-    productFlavors {
-        create("ose") {
-            dimension = "distribution"
-            versionNameSuffix = "-ose"
-        }
-    }
-
-    sourceSets {
-        getByName("androidTest") {
-            assets.srcDir("$projectDir/schemas")
-        }
-    }
-
-    signingConfigs {
-        create("bitfire") {
-            storeFile = file(System.getenv("ANDROID_KEYSTORE") ?: "/dev/null")
-            storePassword = System.getenv("ANDROID_KEYSTORE_PASSWORD")
-            keyAlias = System.getenv("ANDROID_KEY_ALIAS")
-            keyPassword = System.getenv("ANDROID_KEY_PASSWORD")
-        }
-    }
-
-    buildTypes {
-        getByName("release") {
-            isMinifyEnabled = true
-            proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules-release.pro")
-
-            isShrinkResources = true
-
-            signingConfig = signingConfigs.findByName("bitfire")
-        }
-    }
-
-    lint {
-        disable += arrayOf("GoogleAppIndexingWarning", "ImpliedQuantity", "MissingQuantity", "MissingTranslation", "ExtraTranslation", "RtlEnabled", "RtlHardcoded", "Typos", "NullSafeMutableLiveData")
-    }
-
-    packaging {
-        resources {
-            excludes += arrayOf("META-INF/*.md")
-        }
-    }
-
-    androidResources {
-        generateLocaleConfig = true
-    }
-
-    @Suppress("UnstableApiUsage")
-    testOptions {
-        managedDevices {
-            localDevices {
-                create("virtual") {
-                    device = "Pixel 3"
-                    apiLevel = 34
-                    systemImageSource = "aosp-atd"
-                }
-            }
-        }
-    }
-}
-
-ksp {
-    arg("room.schemaLocation", "$projectDir/schemas")
-}
-
-configurations {
-    configureEach {
-        // exclude modules which are in conflict with system libraries
-        exclude(module="commons-logging")
-        exclude(group="org.json", module="json")
-
-        // Groovy requires SDK 26+, and it's not required, so exclude it
-        exclude(group="org.codehaus.groovy")
-    }
-}
-
-dependencies {
-    // core
-    implementation(libs.kotlin.stdlib)
-    implementation(libs.kotlinx.coroutines)
-    coreLibraryDesugaring(libs.android.desugaring)
-
-    // Hilt
-    implementation(libs.hilt.android.base)
-    ksp(libs.androidx.hilt.compiler)
-    ksp(libs.hilt.android.compiler)
-
-    // support libs
-    implementation(libs.androidx.activityCompose)
-    implementation(libs.androidx.appcompat)
-    implementation(libs.androidx.browser)
-    implementation(libs.androidx.cardView)
-    implementation(libs.androidx.concurrentFuture)
-    implementation(libs.androidx.constraintLayout)
-    implementation(libs.androidx.core)
-    implementation(libs.androidx.fragment)
-    implementation(libs.androidx.hilt.work)
-    implementation(libs.androidx.lifecycle.viewmodel.base)
-    implementation(libs.androidx.lifecycle.viewmodel.compose)
-    implementation(libs.androidx.paging)
-    implementation(libs.androidx.preference)
-    implementation(libs.androidx.security)
-    implementation(libs.androidx.swiperefreshlayout)
-    implementation(libs.androidx.work.base)
-    implementation(libs.android.flexbox)
-    implementation(libs.android.material)
-
-    // Jetpack Compose
-    implementation(libs.compose.accompanist.permissions)
-    implementation(libs.compose.accompanist.themeAdapter)
-    implementation(platform(libs.compose.bom))
-    implementation(libs.compose.material)
-    implementation(libs.compose.materialIconsExtended)
-    implementation(libs.compose.runtime.livedata)
-    debugImplementation(libs.compose.ui.tooling)
-    implementation(libs.compose.ui.toolingPreview)
-
-    // Jetpack Room
-    implementation(libs.room.runtime)
-    implementation(libs.room.base)
-    implementation(libs.room.paging)
-    ksp(libs.room.compiler)
-
-    // own libraries
-    implementation(libs.bitfire.cert4android)
-    implementation(libs.bitfire.dav4jvm) {
-        exclude(group="junit")
-    }
-    implementation(libs.bitfire.ical4android)
-    implementation(libs.bitfire.vcard4android)
-
-    // third-party libs
-    implementation(libs.openid.appauth)
-    implementation(libs.appintro)
-    implementation(libs.mikepenz.aboutLibraries)
-    implementation(libs.commons.collections)
-    @Suppress("RedundantSuppression")
-    implementation(libs.commons.io)
-    implementation(libs.commons.lang)
-    implementation(libs.commons.text)
-    @Suppress("RedundantSuppression")
-    implementation(libs.dnsjava)
-    implementation(libs.jaredrummler.colorpicker)
-    implementation(libs.nsk90.kstatemachine)
-    implementation(libs.okhttp.base)
-    implementation(libs.okhttp.brotli)
-    implementation(libs.okhttp.logging)
-
-    // for tests
-    androidTestImplementation(libs.androidx.arch.core.testing)
-    androidTestImplementation(libs.androidx.test.core)
-    androidTestImplementation(libs.androidx.test.junit)
-    androidTestImplementation(libs.androidx.test.rules)
-    androidTestImplementation(libs.androidx.test.runner)
-    androidTestImplementation(libs.androidx.work.testing)
-    androidTestImplementation(libs.hilt.android.testing)
-    androidTestImplementation(libs.junit)
-    androidTestImplementation(libs.mockk.android)
-    androidTestImplementation(libs.okhttp.mockwebserver)
-    androidTestImplementation(libs.room.testing)
-
-    testImplementation(libs.junit)
-    testImplementation(libs.okhttp.mockwebserver)
-}

app/proguard-rules-release.pro

@@ -1,55 +0,0 @@
-
-# R8 usage for DAVx⁵:
-#    shrinking        yes (only in release builds)
-#    optimization     yes (on by R8 defaults)
-#      full-mode      no (see gradle.properties)
-#    obfuscation      no (open-source)
-
--dontobfuscate
--printusage build/reports/r8-usage.txt
-
-# ez-vcard: keep all vCard properties/parameters (used via reflection)
--keep class ezvcard.io.scribe.** { *; }
--keep class ezvcard.property.** { *; }
--keep class ezvcard.parameter.** { *; }
-
-# ical4j: keep all iCalendar properties/parameters (used via reflection)
--keep class net.fortuna.ical4j.** { *; }
-
-# XmlPullParser
--keep class org.xmlpull.** { *; }
-
-# DAVx⁵ + libs
--keep class at.bitfire.** { *; }       # all DAVx⁵ code is required
-
-# AGP 8.2 and 8.3 seem to remove this class, but ezvcard.io uses it. See https://github.com/bitfireAT/davx5/issues/499
--keep class javax.xml.namespace.QName { *; }
-
-# we use enum classes (https://www.guardsquare.com/en/products/proguard/manual/examples#enumerations)
--keepclassmembers,allowoptimization enum * {
-    public static **[] values();
-    public static ** valueOf(java.lang.String);
-}
-
-# Additional rules which are now required since missing classes can't be ignored in R8 anymore.
-# [https://developer.android.com/build/releases/past-releases/agp-7-0-0-release-notes#r8-missing-class-warning]
--dontwarn com.android.org.conscrypt.SSLParametersImpl
--dontwarn com.sun.jna.**                 # dnsjava
--dontwarn groovy.**
--dontwarn java.beans.Transient
--dontwarn javax.naming.NamingException   # dnsjava
--dontwarn javax.naming.directory.**      # dnsjava
--dontwarn junit.textui.TestRunner
--dontwarn lombok.**                      # dnsjava
--dontwarn org.apache.harmony.xnet.provider.jsse.SSLParametersImpl
--dontwarn org.bouncycastle.jsse.**
--dontwarn org.codehaus.groovy.**
--dontwarn org.joda.**
--dontwarn org.json.*
--dontwarn org.jsoup.**
--dontwarn org.openjsse.javax.net.ssl.SSLParameters
--dontwarn org.openjsse.javax.net.ssl.SSLSocket
--dontwarn org.openjsse.net.ssl.OpenJSSE
--dontwarn org.xmlpull.**
--dontwarn sun.net.spi.nameservice.NameService
--dontwarn sun.net.spi.nameservice.NameServiceDescriptor

app/src/.gitignore

@@ -1 +0,0 @@
-espressoTest

app/src/androidTest/kotlin/at/bitfire/davdroid/CustomTestRunner.kt

@@ -1,17 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid
-
-import android.content.Context
-import androidx.test.runner.AndroidJUnitRunner
-import dagger.hilt.android.HiltAndroidApp
-import dagger.hilt.android.testing.HiltTestApplication
-
-class CustomTestRunner : AndroidJUnitRunner() {
-
-    override fun newApplication(cl: ClassLoader, name: String, context: Context) =
-        super.newApplication(cl, HiltTestApplication::class.java.name, context)
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/InitCalendarProviderRule.kt

@@ -1,96 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid
-
-import android.Manifest
-import android.accounts.Account
-import android.content.ContentUris
-import android.content.ContentValues
-import android.os.Build
-import android.provider.CalendarContract
-import androidx.annotation.RequiresApi
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.test.rule.GrantPermissionRule
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.resource.LocalCalendar
-import at.bitfire.davdroid.resource.LocalEvent
-import at.bitfire.ical4android.AndroidCalendar
-import at.bitfire.ical4android.Event
-import net.fortuna.ical4j.model.property.DtStart
-import net.fortuna.ical4j.model.property.RRule
-import org.junit.rules.RuleChain
-import org.junit.rules.TestRule
-import org.junit.runner.Description
-import org.junit.runners.model.Statement
-
-/**
- * JUnit ClassRule which initializes the AOSP CalendarProvider.
- * Needed for some "flaky" tests which would otherwise only succeed on second run.
- *
- * Currently tested on development machine (Ryzen) with Android 12 images (with/without Google Play).
- * Calendar provider behaves quite randomly, so it may or may not work. If you (the reader
- * if this comment) can find out on how to initialize the calendar provider so that the
- * tests are reliably run after `adb shell pm clear com.android.providers.calendar`,
- * please let us know!
- *
- * If you run tests manually, just make sure to ignore the first run after the calendar
- * provider has been accessed the first time.
- */
-class InitCalendarProviderRule private constructor(): TestRule {
-
-    companion object {
-        fun getInstance() = RuleChain
-            .outerRule(GrantPermissionRule.grant(Manifest.permission.READ_CALENDAR, Manifest.permission.WRITE_CALENDAR))
-            .around(InitCalendarProviderRule())
-    }
-
-    override fun apply(base: Statement, description: Description): Statement {
-        Logger.log.info("Initializing calendar provider before running ${description.displayName}")
-        return InitCalendarProviderStatement(base)
-    }
-
-
-    class InitCalendarProviderStatement(val base: Statement): Statement() {
-
-        override fun evaluate() {
-            if (Build.VERSION.SDK_INT < 31)
-                Logger.log.warning("Calendar provider initialization may or may not work. See InitCalendarProviderRule")
-            initCalendarProvider()
-
-            base.evaluate()
-        }
-
-        private fun initCalendarProvider() {
-            val account = Account("LocalCalendarTest", CalendarContract.ACCOUNT_TYPE_LOCAL)
-            val context = InstrumentationRegistry.getInstrumentation().targetContext
-            val provider = context.contentResolver.acquireContentProviderClient(CalendarContract.AUTHORITY)!!
-            val uri = AndroidCalendar.create(account, provider, ContentValues())
-            val calendar = AndroidCalendar.findByID(account, provider, LocalCalendar.Factory, ContentUris.parseId(uri))
-            try {
-                // single event init
-                val normalEvent = Event().apply {
-                    dtStart = DtStart("20220120T010203Z")
-                    summary = "Event with 1 instance"
-                }
-                val normalLocalEvent = LocalEvent(calendar, normalEvent, null, null, null, 0)
-                normalLocalEvent.add()
-                LocalEvent.numInstances(provider, account, normalLocalEvent.id!!)
-
-                // recurring event init
-                val recurringEvent = Event().apply {
-                    dtStart = DtStart("20220120T010203Z")
-                    summary = "Event over 22 years"
-                    rRules.add(RRule("FREQ=YEARLY;UNTIL=20740119T010203Z"))     // year needs to be  >2074 (not supported by Android <11 Calendar Storage)
-                }
-                val localRecurringEvent = LocalEvent(calendar, recurringEvent, null, null, null, 0)
-                localRecurringEvent.add()
-                LocalEvent.numInstances(provider, account, localRecurringEvent.id!!)
-            } finally {
-                calendar.delete()
-            }
-        }
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/MockingModule.kt

@@ -1,31 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid
-
-import android.content.Context
-import at.bitfire.davdroid.settings.SettingsManager
-import dagger.Module
-import dagger.Provides
-import dagger.hilt.android.qualifiers.ApplicationContext
-import dagger.hilt.components.SingletonComponent
-import dagger.hilt.testing.TestInstallIn
-import io.mockk.spyk
-import javax.inject.Singleton
-
-@Module
-@TestInstallIn(
-    components = [ SingletonComponent::class ],
-    replaces = [
-        SettingsManager.SettingsManagerModule::class
-    ]
-)
-class MockingModule {
-
-    @Provides
-    @Singleton
-    fun spykSettingsManager(@ApplicationContext context: Context): SettingsManager =
-        spyk(SettingsManager(context))
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/db/AppDatabaseTest.kt

@@ -1,50 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.db
-
-import android.content.Context
-import androidx.room.Room
-import androidx.room.testing.MigrationTestHelper
-import androidx.sqlite.db.framework.FrameworkSQLiteOpenHelperFactory
-import androidx.test.platform.app.InstrumentationRegistry
-import org.junit.Rule
-import org.junit.Test
-
-class AppDatabaseTest {
-
-    val TEST_DB = "test"
-
-    val context: Context = InstrumentationRegistry.getInstrumentation().targetContext
-
-    @Rule
-    @JvmField
-    val helper = MigrationTestHelper(
-        InstrumentationRegistry.getInstrumentation(),
-        AppDatabase::class.java,
-        listOf(), // no auto migrations until v8
-        FrameworkSQLiteOpenHelperFactory()
-    )
-
-
-    @Test
-    fun testAllMigrations() {
-        // DB schema is available since version 8, so create DB with v8
-        helper.createDatabase(TEST_DB, 8).close()
-
-        val db = Room.databaseBuilder(context, AppDatabase::class.java, TEST_DB)
-            // manual migrations
-            .addMigrations(*AppDatabase.migrations)
-            // auto-migrations that need to be specified explicitly
-            .addAutoMigrationSpec(AppDatabase.AutoMigration11_12(context))
-            .build()
-        try {
-            // open (with version 8) + migrate (to current version) database
-            db.openHelper.writableDatabase
-        } finally {
-            db.close()
-        }
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/db/CollectionTest.kt

@@ -1,155 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.db
-
-import android.security.NetworkSecurityPolicy
-import androidx.test.filters.SmallTest
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.dav4jvm.DavResource
-import at.bitfire.dav4jvm.property.webdav.ResourceType
-import at.bitfire.davdroid.network.HttpClient
-import at.bitfire.davdroid.settings.SettingsManager
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import okhttp3.HttpUrl.Companion.toHttpUrl
-import okhttp3.mockwebserver.MockResponse
-import okhttp3.mockwebserver.MockWebServer
-import org.junit.After
-import org.junit.Assert.assertEquals
-import org.junit.Assert.assertFalse
-import org.junit.Assert.assertNull
-import org.junit.Assert.assertTrue
-import org.junit.Assume
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-import javax.inject.Inject
-
-@HiltAndroidTest
-class CollectionTest {
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    @Inject
-    lateinit var settingsManager: SettingsManager
-
-    @Before
-    fun inject() {
-        hiltRule.inject()
-    }
-
-
-    private lateinit var httpClient: HttpClient
-    private val server = MockWebServer()
-
-    @Before
-    fun setUp() {
-        httpClient = HttpClient.Builder(InstrumentationRegistry.getInstrumentation().targetContext).build()
-        Assume.assumeTrue(NetworkSecurityPolicy.getInstance().isCleartextTrafficPermitted)
-    }
-
-    @After
-    fun shutDown() {
-        httpClient.close()
-    }
-
-
-    @Test
-    @SmallTest
-    fun testFromDavResponseAddressBook() {
-        // r/w address book
-        server.enqueue(MockResponse()
-                .setResponseCode(207)
-                .setBody("<multistatus xmlns='DAV:' xmlns:CARD='urn:ietf:params:xml:ns:carddav'>" +
-                        "<response>" +
-                        "   <href>/</href>" +
-                        "   <propstat><prop>" +
-                        "       <resourcetype><collection/><CARD:addressbook/></resourcetype>" +
-                        "       <displayname>My Contacts</displayname>" +
-                        "       <CARD:addressbook-description>My Contacts Description</CARD:addressbook-description>" +
-                        "   </prop></propstat>" +
-                        "</response>" +
-                        "</multistatus>"))
-
-        lateinit var info: Collection
-        DavResource(httpClient.okHttpClient, server.url("/"))
-                .propfind(0, ResourceType.NAME) { response, _ ->
-            info = Collection.fromDavResponse(response) ?: throw IllegalArgumentException()
-        }
-        assertEquals(Collection.TYPE_ADDRESSBOOK, info.type)
-        assertTrue(info.privWriteContent)
-        assertTrue(info.privUnbind)
-        assertNull(info.supportsVEVENT)
-        assertNull(info.supportsVTODO)
-        assertNull(info.supportsVJOURNAL)
-        assertEquals("My Contacts", info.displayName)
-        assertEquals("My Contacts Description", info.description)
-    }
-
-    @Test
-    @SmallTest
-    fun testFromDavResponseCalendar() {
-        // read-only calendar, no display name
-        server.enqueue(MockResponse()
-                .setResponseCode(207)
-                .setBody("<multistatus xmlns='DAV:' xmlns:CAL='urn:ietf:params:xml:ns:caldav' xmlns:ICAL='http://apple.com/ns/ical/'>" +
-                        "<response>" +
-                        "   <href>/</href>" +
-                        "   <propstat><prop>" +
-                        "       <resourcetype><collection/><CAL:calendar/></resourcetype>" +
-                        "       <current-user-privilege-set><privilege><read/></privilege></current-user-privilege-set>" +
-                        "       <CAL:calendar-description>My Calendar</CAL:calendar-description>" +
-                        "       <CAL:calendar-timezone>tzdata</CAL:calendar-timezone>" +
-                        "       <ICAL:calendar-color>#ff0000</ICAL:calendar-color>" +
-                        "   </prop></propstat>" +
-                        "</response>" +
-                        "</multistatus>"))
-
-        lateinit var info: Collection
-        DavResource(httpClient.okHttpClient, server.url("/"))
-                .propfind(0, ResourceType.NAME) { response, _ ->
-                    info = Collection.fromDavResponse(response) ?: throw IllegalArgumentException()
-                }
-        assertEquals(Collection.TYPE_CALENDAR, info.type)
-        assertFalse(info.privWriteContent)
-        assertFalse(info.privUnbind)
-        assertNull(info.displayName)
-        assertEquals("My Calendar", info.description)
-        assertEquals(0xFFFF0000.toInt(), info.color)
-        assertEquals("tzdata", info.timezone)
-        assertTrue(info.supportsVEVENT!!)
-        assertTrue(info.supportsVTODO!!)
-        assertTrue(info.supportsVJOURNAL!!)
-    }
-
-    @Test
-    @SmallTest
-    fun testFromDavResponseWebcal() {
-        // Webcal subscription
-        server.enqueue(MockResponse()
-                .setResponseCode(207)
-                .setBody("<multistatus xmlns='DAV:' xmlns:CS='http://calendarserver.org/ns/'>" +
-                        "<response>" +
-                        "   <href>/webcal1</href>" +
-                        "   <propstat><prop>" +
-                        "       <displayname>Sample Subscription</displayname>" +
-                        "       <resourcetype><collection/><CS:subscribed/></resourcetype>" +
-                        "       <CS:source><href>webcals://example.com/1.ics</href></CS:source>" +
-                        "   </prop></propstat>" +
-                        "</response>" +
-                        "</multistatus>"))
-
-        lateinit var info: Collection
-        DavResource(httpClient.okHttpClient, server.url("/"))
-                .propfind(0, ResourceType.NAME) { response, _ ->
-                    info = Collection.fromDavResponse(response) ?: throw IllegalArgumentException()
-                }
-        assertEquals(Collection.TYPE_WEBCAL, info.type)
-        assertEquals("Sample Subscription", info.displayName)
-        assertEquals("https://example.com/1.ics".toHttpUrl(), info.source)
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/db/HomesetDaoTest.kt

@@ -1,81 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.db
-
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import okhttp3.HttpUrl.Companion.toHttpUrl
-import org.junit.After
-import org.junit.Assert.assertEquals
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-import javax.inject.Inject
-
-@HiltAndroidTest
-class HomesetDaoTest {
-
-    @get:Rule
-    var hiltRule = HiltAndroidRule(this)
-
-    @Inject
-    lateinit var db: AppDatabase
-
-    @Before
-    fun setUp() {
-        hiltRule.inject()
-    }
-
-    @After
-    fun tearDown() {
-        db.close()
-    }
-
-    @Test
-    fun testInsertOrUpdate() {
-        // should insert new row or update (upsert) existing row - without changing its key!
-        val serviceId = createTestService()
-        val homeSetDao = db.homeSetDao()
-
-        val entry1 = HomeSet(id=0, serviceId=serviceId, personal=true, url="https://example.com/1".toHttpUrl())
-        val insertId1 = homeSetDao.insertOrUpdateByUrl(entry1)
-        assertEquals(1L, insertId1)
-        assertEquals(entry1.apply { id = 1L }, homeSetDao.getById(1L))
-
-        val updatedEntry1 = HomeSet(id=0, serviceId=serviceId, personal=true, url="https://example.com/1".toHttpUrl(), displayName="Updated Entry")
-        val updateId1 = homeSetDao.insertOrUpdateByUrl(updatedEntry1)
-        assertEquals(1L, updateId1)
-        assertEquals(updatedEntry1.apply { id = 1L }, homeSetDao.getById(1L))
-
-        val entry2 = HomeSet(id=0, serviceId=serviceId, personal=true, url= "https://example.com/2".toHttpUrl())
-        val insertId2 = homeSetDao.insertOrUpdateByUrl(entry2)
-        assertEquals(2L, insertId2)
-        assertEquals(entry2.apply { id = 2L }, homeSetDao.getById(2L))
-    }
-
-    @Test
-    fun testDelete() {
-        // should delete row with given primary key (id)
-        val serviceId = createTestService()
-        val homesetDao = db.homeSetDao()
-
-        val entry1 = HomeSet(id=1, serviceId=serviceId, personal=true, url= "https://example.com/1".toHttpUrl())
-
-        val insertId1 = homesetDao.insertOrUpdateByUrl(entry1)
-        assertEquals(1L, insertId1)
-        assertEquals(entry1, homesetDao.getById(1L))
-
-        homesetDao.delete(entry1)
-
-        assertEquals(null, homesetDao.getById(1L))
-    }
-
-    fun createTestService() : Long {
-        val serviceDao = db.serviceDao()
-        val service = Service(id=0, accountName="test", type=Service.TYPE_CALDAV, principal = null)
-        return serviceDao.insertOrReplace(service)
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/network/ConnectionUtilsTest.kt

@@ -1,149 +0,0 @@
-/*
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- */
-
-package at.bitfire.davdroid.network
-
-import android.net.ConnectivityManager
-import android.net.Network
-import android.net.NetworkCapabilities
-import android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET
-import android.net.NetworkCapabilities.NET_CAPABILITY_NOT_VPN
-import android.net.NetworkCapabilities.NET_CAPABILITY_VALIDATED
-import android.net.NetworkCapabilities.TRANSPORT_WIFI
-import dagger.hilt.android.testing.HiltAndroidTest
-import io.mockk.every
-import io.mockk.mockk
-import junit.framework.TestCase.assertFalse
-import junit.framework.TestCase.assertTrue
-import org.junit.Before
-import org.junit.Test
-
-@HiltAndroidTest
-class ConnectionUtilsTest {
-
-    private val connectivityManager = mockk<ConnectivityManager>()
-    private val network1 = mockk<Network>()
-    private val network2 = mockk<Network>()
-    private val capabilities = mockk<NetworkCapabilities>()
-
-    @Before
-    fun setUp() {
-        every { connectivityManager.allNetworks } returns arrayOf(network1, network2)
-        every { connectivityManager.getNetworkInfo(network1) } returns mockk()
-        every { connectivityManager.getNetworkInfo(network2) } returns mockk()
-        every { connectivityManager.getNetworkCapabilities(network1) } returns capabilities
-        every { connectivityManager.getNetworkCapabilities(network2) } returns capabilities
-    }
-
-    @Test
-    fun testWifiAvailable_capabilitiesNull() {
-        every { connectivityManager.getNetworkCapabilities(network1) } returns null
-        every { connectivityManager.getNetworkCapabilities(network2) } returns null
-        assertFalse(ConnectionUtils.wifiAvailable(connectivityManager))
-    }
-
-    @Test
-    fun testWifiAvailable() {
-        every { capabilities.hasTransport(TRANSPORT_WIFI) } returns false
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns false
-        assertFalse(ConnectionUtils.wifiAvailable(connectivityManager))
-    }
-
-    @Test
-    fun testWifiAvailable_wifi() {
-        every { capabilities.hasTransport(TRANSPORT_WIFI) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns false
-        assertFalse(ConnectionUtils.wifiAvailable(connectivityManager))
-    }
-
-    @Test
-    fun testWifiAvailable_validated() {
-        every { capabilities.hasTransport(TRANSPORT_WIFI) } returns false
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
-        assertFalse(ConnectionUtils.wifiAvailable(connectivityManager))
-    }
-
-    @Test
-    fun testWifiAvailable_wifiValidated() {
-        every { capabilities.hasTransport(TRANSPORT_WIFI) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
-        assertTrue(ConnectionUtils.wifiAvailable(connectivityManager))
-    }
-
-
-    @Test
-    fun testInternetAvailable_capabilitiesNull() {
-        every { connectivityManager.getNetworkCapabilities(network1) } returns null
-        every { connectivityManager.getNetworkCapabilities(network2) } returns null
-        assertFalse(ConnectionUtils.internetAvailable(connectivityManager, false))
-    }
-
-    @Test
-    fun testInternetAvailable_Internet() {
-        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns false
-        assertFalse(ConnectionUtils.internetAvailable(connectivityManager, false))
-    }
-
-    @Test
-    fun testInternetAvailable_Validated() {
-        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns false
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
-        assertFalse(ConnectionUtils.internetAvailable(connectivityManager, false))
-    }
-
-    @Test
-    fun testInternetAvailable_InternetValidated() {
-        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
-        assertTrue(ConnectionUtils.internetAvailable(connectivityManager, false))
-    }
-
-    @Test
-    fun testInternetAvailable_ignoreVpns() {
-        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_NOT_VPN) } returns false
-        assertFalse(ConnectionUtils.internetAvailable(connectivityManager, true))
-    }
-
-    @Test
-    fun testInternetAvailable_ignoreVpns_Notvpn() {
-        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_NOT_VPN) } returns true
-        assertTrue(ConnectionUtils.internetAvailable(connectivityManager, true))
-    }
-
-    @Test
-    fun testInternetAvailable_twoConnectionsFirstOneWithoutInternet() {
-        // The real case that failed in davx5-ose#395 is that the connection list contains (in this order)
-        // 1. a mobile network without INTERNET, but with VALIDATED
-        // 2. a WiFi network with INTERNET and VALIDATED
-
-        // The "return false" of hasINTERNET will trigger at the first connection, the
-        // "andThen true" will trigger for the second connection
-        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns false andThen true
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
-
-        // There is an internet connection if any(!) connection has both INTERNET and VALIDATED.
-        assertTrue(ConnectionUtils.internetAvailable(connectivityManager, false))
-    }
-
-    @Test
-    fun testInternetAvailable_twoConnectionsFirstOneWithoutValidated() {
-        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns false andThen true
-        assertTrue(ConnectionUtils.internetAvailable(connectivityManager, false))
-    }
-
-    @Test
-    fun testInternetAvailable_twoConnectionsFirstOneWithoutNotvpn() {
-        every { capabilities.hasCapability(NET_CAPABILITY_INTERNET) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_VALIDATED) } returns true
-        every { capabilities.hasCapability(NET_CAPABILITY_NOT_VPN) } returns false andThen true
-        assertTrue(ConnectionUtils.internetAvailable(connectivityManager, true))
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalAddressBookTest.kt

@@ -1,78 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.accounts.Account
-import android.accounts.AccountManager
-import androidx.arch.core.executor.testing.InstantTaskExecutorRule
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.davdroid.R
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import org.junit.After
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-
-@HiltAndroidTest
-class LocalAddressBookTest {
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    val context = InstrumentationRegistry.getInstrumentation().targetContext
-
-    val mainAccountType = context.getString(R.string.account_type)
-    val mainAccount = Account("main", mainAccountType)
-
-    val addressBookAccountType = context.getString(R.string.account_type_address_book)
-    val addressBookAccount = Account("sub", addressBookAccountType)
-
-    val accountManager = AccountManager.get(context)
-
-    @Before
-    fun setUp() {
-        hiltRule.inject()
-
-        // TODO DOES NOT WORK: the account immediately starts to sync, which creates the sync adapter services.
-        // The services however can't be created because Hilt is "not ready" (although it has been initialized in the line above).
-        // assertTrue(AccountUtils.createAccount(context, mainAccount, AccountSettings.initialUserData(null)))
-    }
-
-    @After
-    fun cleanup() {
-        accountManager.removeAccount(addressBookAccount, null, null)
-        accountManager.removeAccount(mainAccount, null, null)
-    }
-
-
-    // TODO see above
-    /*@Test
-    fun testMainAccount_AddressBookAccount_WithMainAccount() {
-        // create address book account
-        assertTrue(accountManager.addAccountExplicitly(addressBookAccount, null, Bundle().apply {
-            putString(LocalAddressBook.USER_DATA_MAIN_ACCOUNT_NAME, mainAccount.name)
-            putString(LocalAddressBook.USER_DATA_MAIN_ACCOUNT_TYPE, mainAccount.type)
-        }))
-
-        // check mainAccount()
-        assertEquals(mainAccount, LocalAddressBook.mainAccount(context, addressBookAccount))
-    }
-
-    @Test(expected = IllegalArgumentException::class)
-    fun testMainAccount_AddressBookAccount_WithoutMainAccount() {
-        // create address book account
-        assertTrue(accountManager.addAccountExplicitly(addressBookAccount, null, Bundle()))
-
-        // check mainAccount(); should fail because there's no main account
-        LocalAddressBook.mainAccount(context, addressBookAccount)
-    }*/
-
-    @Test(expected = IllegalArgumentException::class)
-    fun testMainAccount_OtherAccount() {
-        LocalAddressBook.mainAccount(context, Account("Other Account", "com.example"))
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalCalendarTest.kt

@@ -1,145 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.accounts.Account
-import android.content.ContentProviderClient
-import android.content.ContentUris
-import android.content.ContentValues
-import android.provider.CalendarContract
-import android.provider.CalendarContract.ACCOUNT_TYPE_LOCAL
-import android.provider.CalendarContract.Events
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.davdroid.InitCalendarProviderRule
-import at.bitfire.ical4android.AndroidCalendar
-import at.bitfire.ical4android.Event
-import at.bitfire.ical4android.util.MiscUtils.closeCompat
-import at.bitfire.ical4android.util.MiscUtils.asSyncAdapter
-import net.fortuna.ical4j.model.property.DtStart
-import net.fortuna.ical4j.model.property.RRule
-import net.fortuna.ical4j.model.property.RecurrenceId
-import net.fortuna.ical4j.model.property.Status
-import org.junit.*
-import org.junit.Assert.assertEquals
-import org.junit.rules.TestRule
-
-class LocalCalendarTest {
-
-    companion object {
-        @JvmField
-        @ClassRule
-        val initCalendarProviderRule: TestRule = InitCalendarProviderRule.getInstance()
-
-        private lateinit var provider: ContentProviderClient
-
-        @BeforeClass
-        @JvmStatic
-        fun setUpProvider() {
-            val context = InstrumentationRegistry.getInstrumentation().targetContext
-            provider = context.contentResolver.acquireContentProviderClient(CalendarContract.AUTHORITY)!!
-        }
-
-        @AfterClass
-        @JvmStatic
-        fun closeProvider() {
-            provider.closeCompat()
-        }
-
-    }
-
-    private val account = Account("LocalCalendarTest", ACCOUNT_TYPE_LOCAL)
-    private lateinit var calendar: LocalCalendar
-
-    @Before
-    fun prepare() {
-        val uri = AndroidCalendar.create(account, provider, ContentValues())
-        calendar = AndroidCalendar.findByID(account, provider, LocalCalendar.Factory, ContentUris.parseId(uri))
-    }
-
-    @After
-    fun shutdown() {
-        calendar.delete()
-    }
-
-
-    @Test
-    fun testDeleteDirtyEventsWithoutInstances_NoInstances_CancelledExceptions() {
-        // create recurring event with only deleted/cancelled instances
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 3 instances"
-            rRules.add(RRule("FREQ=DAILY;COUNT=3"))
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220120T010203Z")
-                dtStart = DtStart("20220120T010203Z")
-                summary = "Cancelled exception on 1st day"
-                status = Status.VEVENT_CANCELLED
-            })
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220121T010203Z")
-                dtStart = DtStart("20220121T010203Z")
-                summary = "Cancelled exception on 2nd day"
-                status = Status.VEVENT_CANCELLED
-            })
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220122T010203Z")
-                dtStart = DtStart("20220122T010203Z")
-                summary = "Cancelled exception on 3rd day"
-                status = Status.VEVENT_CANCELLED
-            })
-        }
-        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, LocalResource.FLAG_REMOTELY_PRESENT)
-        localEvent.add()
-        val eventId = localEvent.id!!
-
-        // set event as dirty
-        provider.update(ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId), ContentValues(1).apply {
-            put(Events.DIRTY, 1)
-        }, null, null)
-
-        // this method should mark the event as deleted
-        calendar.deleteDirtyEventsWithoutInstances()
-
-        // verify that event is now marked as deleted
-        provider.query(
-            ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId),
-            arrayOf(Events.DELETED), null, null, null
-        )!!.use { cursor ->
-            cursor.moveToNext()
-            assertEquals(1, cursor.getInt(0))
-        }
-    }
-
-    @Test
-    // Flaky, Needs single or rec init of CalendarProvider (InitCalendarProviderRule)
-    fun testDeleteDirtyEventsWithoutInstances_Recurring_Instances() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 3 instances"
-            rRules.add(RRule("FREQ=DAILY;COUNT=3"))
-        }
-        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, LocalResource.FLAG_REMOTELY_PRESENT)
-        localEvent.add()
-        val eventId = localEvent.id!!
-
-        // set event as dirty
-        provider.update(ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId), ContentValues(1).apply {
-            put(Events.DIRTY, 1)
-        }, null, null)
-
-        // this method should mark the event as deleted
-        calendar.deleteDirtyEventsWithoutInstances()
-
-        // verify that event is not marked as deleted
-        provider.query(
-            ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId),
-            arrayOf(Events.DELETED), null, null, null
-        )!!.use { cursor ->
-            cursor.moveToNext()
-            assertEquals(0, cursor.getInt(0))
-        }
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalEventTest.kt

@@ -1,472 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.accounts.Account
-import android.content.ContentProviderClient
-import android.content.ContentUris
-import android.content.ContentValues
-import android.os.Build
-import android.provider.CalendarContract
-import android.provider.CalendarContract.ACCOUNT_TYPE_LOCAL
-import android.provider.CalendarContract.Events
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.davdroid.InitCalendarProviderRule
-import at.bitfire.ical4android.AndroidCalendar
-import at.bitfire.ical4android.Event
-import at.bitfire.ical4android.util.MiscUtils.closeCompat
-import at.techbee.jtx.JtxContract.asSyncAdapter
-import net.fortuna.ical4j.model.Date
-import net.fortuna.ical4j.model.DateList
-import net.fortuna.ical4j.model.parameter.Value
-import net.fortuna.ical4j.model.property.*
-import org.junit.*
-import org.junit.Assert.*
-import org.junit.rules.TestRule
-import java.util.*
-
-class LocalEventTest {
-
-    companion object {
-
-        @JvmField
-        @ClassRule
-        val initCalendarProviderRule: TestRule = InitCalendarProviderRule.getInstance()
-
-        private val account = Account("LocalCalendarTest", ACCOUNT_TYPE_LOCAL)
-
-        private lateinit var provider: ContentProviderClient
-        private lateinit var calendar: LocalCalendar
-
-        @BeforeClass
-        @JvmStatic
-        fun connect() {
-            val context = InstrumentationRegistry.getInstrumentation().targetContext
-            provider = context.contentResolver.acquireContentProviderClient(CalendarContract.AUTHORITY)!!
-        }
-
-        @AfterClass
-        @JvmStatic
-        fun disconnect() {
-            provider.closeCompat()
-        }
-    }
-
-    @Before
-    fun createCalendar() {
-        val uri = AndroidCalendar.create(account, provider, ContentValues())
-        calendar = AndroidCalendar.findByID(account, provider, LocalCalendar.Factory, ContentUris.parseId(uri))
-    }
-
-    @After
-    fun removeCalendar() {
-        calendar.delete()
-    }
-
-
-    @Test
-    fun testNumDirectInstances_SingleInstance() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 1 instance"
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        assertEquals(1, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    fun testNumDirectInstances_Recurring() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 5 instances"
-            rRules.add(RRule("FREQ=DAILY;COUNT=5"))
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        assertEquals(5, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    fun testNumDirectInstances_Recurring_Endless() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event without end"
-            rRules.add(RRule("FREQ=DAILY"))
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        assertNull(LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    // flaky, needs InitCalendarProviderRule
-    fun testNumDirectInstances_Recurring_LateEnd() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 53 years"
-            rRules.add(RRule("FREQ=YEARLY;UNTIL=20740119T010203Z"))     // year 2074 is not supported by Android <11 Calendar Storage
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
-            assertEquals(52, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
-        else
-            assertNull(LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    // flaky, needs InitCalendarProviderRule
-    fun testNumDirectInstances_Recurring_ManyInstances() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 2 years"
-            rRules.add(RRule("FREQ=DAILY;UNTIL=20240120T010203Z"))
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-        val number = LocalEvent.numDirectInstances(provider, account, localEvent.id!!)
-
-        // Some android versions (i.e. <=Q and S) return 365*2 instances (wrong, 365*2+1 => correct),
-        // but we are satisfied with either result for now
-        assertTrue(number == 365*2 || number == 365*2+1)
-    }
-
-    @Test
-    // flaky, needs InitCalendarProviderRule
-    fun testNumDirectInstances_RecurringWithExdate() {
-        val event = Event().apply {
-            dtStart = DtStart(Date("20220120T010203Z"))
-            summary = "Event with 5 instances"
-            rRules.add(RRule("FREQ=DAILY;COUNT=5"))
-            exDates.add(ExDate(DateList("20220121T010203Z", Value.DATE_TIME)))
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        assertEquals(4, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    fun testNumDirectInstances_RecurringWithExceptions() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 5 instances"
-            rRules.add(RRule("FREQ=DAILY;COUNT=5"))
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220122T010203Z")
-                dtStart = DtStart("20220122T130203Z")
-                summary = "Exception on 3rd day"
-            })
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220124T010203Z")
-                dtStart = DtStart("20220122T160203Z")
-                summary = "Exception on 5th day"
-            })
-        }
-        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, 0)
-        localEvent.add()
-
-        assertEquals(5-2, LocalEvent.numDirectInstances(provider, account, localEvent.id!!))
-    }
-
-
-    @Test
-    // flaky, needs InitCalendarProviderRule
-    fun testNumInstances_SingleInstance() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 1 instance"
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        assertEquals(1, LocalEvent.numInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    fun testNumInstances_Recurring() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 5 instances"
-            rRules.add(RRule("FREQ=DAILY;COUNT=5"))
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        assertEquals(5, LocalEvent.numInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    fun testNumInstances_Recurring_Endless() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with infinite instances"
-            rRules.add(RRule("FREQ=YEARLY"))
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        assertNull(LocalEvent.numInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    // flaky, needs InitCalendarProviderRule
-    fun testNumInstances_Recurring_LateEnd() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event over 22 years"
-            rRules.add(RRule("FREQ=YEARLY;UNTIL=20740119T010203Z"))     // year 2074 not supported by Android <11 Calendar Storage
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
-            assertEquals(52, LocalEvent.numInstances(provider, account, localEvent.id!!))
-        else
-            assertNull(LocalEvent.numInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    // flaky, needs InitCalendarProviderRule
-    fun testNumInstances_Recurring_ManyInstances() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event over two years"
-            rRules.add(RRule("FREQ=DAILY;UNTIL=20240120T010203Z"))
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        assertEquals(
-            if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.Q)
-                365*2       // Android <10: does not include UNTIL (incorrect!)
-            else
-                365*2 + 1,  // Android ≥10: includes UNTIL (correct)
-            LocalEvent.numInstances(provider, account, localEvent.id!!))
-    }
-
-    @Test
-    fun testNumInstances_RecurringWithExceptions() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 6 instances"
-            rRules.add(RRule("FREQ=DAILY;COUNT=6"))
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220122T010203Z")
-                dtStart = DtStart("20220122T130203Z")
-                summary = "Exception on 3rd day"
-            })
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220124T010203Z")
-                dtStart = DtStart("20220122T160203Z")
-                summary = "Exception on 5th day"
-            })
-        }
-        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, 0)
-        val uri = localEvent.add()
-
-        calendar.findById(localEvent.id!!)
-
-        assertEquals(6, LocalEvent.numInstances(provider, account, localEvent.id!!))
-    }
-
-
-    @Test
-    fun testMarkEventAsDeleted() {
-        // Create event
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "A fine event"
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()
-
-        // Delete event
-        LocalEvent.markAsDeleted(provider, account, localEvent.id!!)
-
-        // Get the status of whether the event is deleted
-        provider.query(
-            ContentUris.withAppendedId(Events.CONTENT_URI, localEvent.id!!).asSyncAdapter(account),
-            arrayOf(Events.DELETED),
-            null,
-            null, null
-        )!!.use { cursor ->
-            cursor.moveToFirst()
-            assertEquals(1, cursor.getInt(0))
-        }
-    }
-
-
-    @Test
-    fun testPrepareForUpload_NoUid() {
-        // create event
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event without uid"
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add()    // save it to calendar storage
-
-        // prepare for upload - this should generate a new random uuid, returned as filename
-        val fileNameWithSuffix = localEvent.prepareForUpload()
-        val fileName = fileNameWithSuffix.removeSuffix(".ics")
-
-        // throws an exception if fileName is not an UUID
-        UUID.fromString(fileName)
-
-        // UID in calendar storage should be the same as file name
-        provider.query(
-            ContentUris.withAppendedId(Events.CONTENT_URI, localEvent.id!!).asSyncAdapter(account),
-            arrayOf(Events.UID_2445), null, null, null
-        )!!.use { cursor ->
-            cursor.moveToFirst()
-            assertEquals(fileName, cursor.getString(0))
-        }
-    }
-
-    @Test
-    fun testPrepareForUpload_NormalUid() {
-        // create event
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with normal uid"
-            uid = "some-event@hostname.tld"     // old UID format, UUID would be new format
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add() // save it to calendar storage
-
-        // prepare for upload - this should use the UID for the file name
-        val fileNameWithSuffix = localEvent.prepareForUpload()
-        val fileName = fileNameWithSuffix.removeSuffix(".ics")
-
-        assertEquals(event.uid, fileName)
-
-        // UID in calendar storage should still be set, too
-        provider.query(
-            ContentUris.withAppendedId(Events.CONTENT_URI, localEvent.id!!).asSyncAdapter(account),
-            arrayOf(Events.UID_2445), null, null, null
-        )!!.use { cursor ->
-            cursor.moveToFirst()
-            assertEquals(fileName, cursor.getString(0))
-        }
-    }
-
-    @Test
-    fun testPrepareForUpload_UidHasDangerousChars() {
-        // create event
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with funny uid"
-            uid = "https://www.example.com/events/asdfewfe-cxyb-ewrws-sadfrwerxyvser-asdfxye-"
-        }
-        val localEvent = LocalEvent(calendar, event, null, null, null, 0)
-        localEvent.add() // save it to calendar storage
-
-        // prepare for upload - this should generate a new random uuid, returned as filename
-        val fileNameWithSuffix = localEvent.prepareForUpload()
-        val fileName = fileNameWithSuffix.removeSuffix(".ics")
-
-        // throws an exception if fileName is not an UUID
-        UUID.fromString(fileName)
-
-        // UID in calendar storage shouldn't have been changed
-        provider.query(
-            ContentUris.withAppendedId(Events.CONTENT_URI, localEvent.id!!).asSyncAdapter(account),
-            arrayOf(Events.UID_2445), null, null, null
-        )!!.use { cursor ->
-            cursor.moveToFirst()
-            assertEquals(event.uid, cursor.getString(0))
-        }
-    }
-
-
-    @Test
-    fun testDeleteDirtyEventsWithoutInstances_NoInstances_Exdate() {
-        // TODO
-    }
-
-    @Test
-    fun testDeleteDirtyEventsWithoutInstances_NoInstances_CancelledExceptions() {
-        // create recurring event with only deleted/cancelled instances
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 3 instances"
-            rRules.add(RRule("FREQ=DAILY;COUNT=3"))
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220120T010203Z")
-                dtStart = DtStart("20220120T010203Z")
-                summary = "Cancelled exception on 1st day"
-                status = Status.VEVENT_CANCELLED
-            })
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220121T010203Z")
-                dtStart = DtStart("20220121T010203Z")
-                summary = "Cancelled exception on 2nd day"
-                status = Status.VEVENT_CANCELLED
-            })
-            exceptions.add(Event().apply {
-                recurrenceId = RecurrenceId("20220122T010203Z")
-                dtStart = DtStart("20220122T010203Z")
-                summary = "Cancelled exception on 3rd day"
-                status = Status.VEVENT_CANCELLED
-            })
-        }
-        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, LocalResource.FLAG_REMOTELY_PRESENT)
-        localEvent.add()
-        val eventId = localEvent.id!!
-
-        // set event as dirty
-        provider.update(ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId), ContentValues(1).apply {
-            put(Events.DIRTY, 1)
-        }, null, null)
-
-        // this method should mark the event as deleted
-        calendar.deleteDirtyEventsWithoutInstances()
-
-        // verify that event is now marked as deleted
-        provider.query(
-            ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId),
-            arrayOf(Events.DELETED), null, null, null
-        )!!.use { cursor ->
-            cursor.moveToNext()
-            assertEquals(1, cursor.getInt(0))
-        }
-    }
-
-    @Test
-    fun testDeleteDirtyEventsWithoutInstances_Recurring_Instances() {
-        val event = Event().apply {
-            dtStart = DtStart("20220120T010203Z")
-            summary = "Event with 3 instances"
-            rRules.add(RRule("FREQ=DAILY;COUNT=3"))
-        }
-        val localEvent = LocalEvent(calendar, event, "filename.ics", null, null, LocalResource.FLAG_REMOTELY_PRESENT)
-        localEvent.add()
-        val eventId = localEvent.id!!
-
-        // set event as dirty
-        provider.update(ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId), ContentValues(1).apply {
-            put(Events.DIRTY, 1)
-        }, null, null)
-
-        // this method should mark the event as deleted
-        calendar.deleteDirtyEventsWithoutInstances()
-
-        // verify that event is not marked as deleted
-        provider.query(
-            ContentUris.withAppendedId(Events.CONTENT_URI.asSyncAdapter(account), eventId),
-            arrayOf(Events.DELETED), null, null, null
-        )!!.use { cursor ->
-            cursor.moveToNext()
-            assertEquals(0, cursor.getInt(0))
-        }
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalGroupTest.kt

@@ -1,267 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.Manifest
-import android.content.ContentProviderClient
-import android.content.ContentUris
-import android.content.ContentValues
-import android.provider.ContactsContract
-import android.provider.ContactsContract.CommonDataKinds.GroupMembership
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.test.rule.GrantPermissionRule
-import at.bitfire.davdroid.settings.SettingsManager
-import at.bitfire.vcard4android.BatchOperation
-import at.bitfire.vcard4android.CachedGroupMembership
-import at.bitfire.vcard4android.Contact
-import at.bitfire.vcard4android.GroupMethod
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import org.junit.*
-import org.junit.Assert.*
-import javax.inject.Inject
-
-@HiltAndroidTest
-class LocalGroupTest {
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    @Inject
-    lateinit var settingsManager: SettingsManager
-
-    @Before
-    fun inject() {
-        hiltRule.inject()
-    }
-
-    companion object {
-        @JvmField
-        @ClassRule
-        val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
-
-        private lateinit var provider: ContentProviderClient
-
-        private lateinit var addressBookGroupsAsCategories: LocalTestAddressBook
-        private lateinit var addressBookGroupsAsVCards: LocalTestAddressBook
-
-        @BeforeClass
-        @JvmStatic
-        fun connect() {
-            val context = InstrumentationRegistry.getInstrumentation().targetContext
-            provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
-            assertNotNull(provider)
-
-            addressBookGroupsAsCategories = LocalTestAddressBook(context, provider, GroupMethod.CATEGORIES)
-            addressBookGroupsAsVCards = LocalTestAddressBook(context, provider, GroupMethod.GROUP_VCARDS)
-        }
-
-        @AfterClass
-        @JvmStatic
-        fun disconnect() {
-            @Suppress("DEPRECATION")
-            provider.release()
-        }
-    }
-
-    private fun newGroup(addressBook: LocalAddressBook = addressBookGroupsAsCategories): LocalGroup =
-        LocalGroup(addressBook,
-            Contact().apply {
-                displayName = "Test Group"
-            }, null, null, 0
-        ).apply {
-            add()
-        }
-
-
-
-    @Before
-    fun clearContacts() {
-        addressBookGroupsAsCategories.clear()
-        addressBookGroupsAsVCards.clear()
-    }
-
-
-    @Test
-    fun testApplyPendingMemberships_addPendingMembership() {
-        val ab = addressBookGroupsAsVCards
-
-        val contact1 = LocalContact(ab, Contact().apply {
-            uid = "test1"
-            displayName = "Test"
-        }, "test1.vcf", null, 0)
-        contact1.add()
-
-        val group = newGroup(ab)
-        // set pending membership of contact1
-        ab.provider!!.update(
-            ContentUris.withAppendedId(ab.groupsSyncUri(), group.id!!),
-            ContentValues().apply {
-                put(LocalGroup.COLUMN_PENDING_MEMBERS, LocalGroup.PendingMemberships(setOf("test1")).toString())
-            },
-            null, null
-        )
-
-        // pending membership -> contact1 should be added to group
-        LocalGroup.applyPendingMemberships(ab)
-
-        // check group membership
-        ab.provider!!.query(
-            ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(GroupMembership.GROUP_ROW_ID, GroupMembership.RAW_CONTACT_ID),
-            "${GroupMembership.MIMETYPE}=?", arrayOf(GroupMembership.CONTENT_ITEM_TYPE),
-            null
-        )!!.use { cursor ->
-            assertTrue(cursor.moveToNext())
-            assertEquals(group.id, cursor.getLong(0))
-            assertEquals(contact1.id, cursor.getLong(1))
-
-            assertFalse(cursor.moveToNext())
-        }
-        // check cached group membership
-        ab.provider!!.query(
-            ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(CachedGroupMembership.GROUP_ID, CachedGroupMembership.RAW_CONTACT_ID),
-            "${CachedGroupMembership.MIMETYPE}=?", arrayOf(CachedGroupMembership.CONTENT_ITEM_TYPE),
-            null
-        )!!.use { cursor ->
-            assertTrue(cursor.moveToNext())
-            assertEquals(group.id, cursor.getLong(0))
-            assertEquals(contact1.id, cursor.getLong(1))
-
-            assertFalse(cursor.moveToNext())
-        }
-    }
-
-    @Test
-    fun testApplyPendingMemberships_removeMembership() {
-        val ab = addressBookGroupsAsVCards
-
-        val contact1 = LocalContact(ab, Contact().apply {
-            uid = "test1"
-            displayName = "Test"
-        }, "test1.vcf", null, 0)
-        contact1.add()
-
-        val group = newGroup(ab)
-
-        // add contact1 to group
-        val batch = BatchOperation(ab.provider!!)
-        contact1.addToGroup(batch, group.id!!)
-        batch.commit()
-
-        // no pending memberships -> membership should be removed
-        LocalGroup.applyPendingMemberships(ab)
-
-        // check group membership
-        ab.provider!!.query(
-            ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(GroupMembership.GROUP_ROW_ID, GroupMembership.RAW_CONTACT_ID),
-            "${GroupMembership.MIMETYPE}=?", arrayOf(GroupMembership.CONTENT_ITEM_TYPE),
-            null
-        )!!.use { cursor ->
-            assertFalse(cursor.moveToNext())
-        }
-        // check cached group membership
-        ab.provider!!.query(
-            ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(CachedGroupMembership.GROUP_ID, CachedGroupMembership.RAW_CONTACT_ID),
-            "${CachedGroupMembership.MIMETYPE}=?", arrayOf(CachedGroupMembership.CONTENT_ITEM_TYPE),
-            null
-        )!!.use { cursor ->
-            assertFalse(cursor.moveToNext())
-        }
-    }
-
-
-    @Test
-    fun testClearDirty_addCachedGroupMembership() {
-        val ab = addressBookGroupsAsCategories
-        val group = newGroup(ab)
-
-        val contact1 = LocalContact(ab, Contact().apply { displayName = "Test" }, "fn.vcf", null, 0)
-        contact1.add()
-
-        // insert group membership, but no cached group membership
-        ab.provider!!.insert(
-            ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), ContentValues().apply {
-                put(GroupMembership.MIMETYPE, GroupMembership.CONTENT_ITEM_TYPE)
-                put(GroupMembership.RAW_CONTACT_ID, contact1.id)
-                put(GroupMembership.GROUP_ROW_ID, group.id)
-            }
-        )
-
-        group.clearDirty(null, null)
-
-        // check cached group membership
-        ab.provider!!.query(
-            ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(CachedGroupMembership.GROUP_ID, CachedGroupMembership.RAW_CONTACT_ID),
-            "${CachedGroupMembership.MIMETYPE}=?", arrayOf(CachedGroupMembership.CONTENT_ITEM_TYPE),
-            null
-        )!!.use { cursor ->
-            assertTrue(cursor.moveToNext())
-            assertEquals(group.id, cursor.getLong(0))
-            assertEquals(contact1.id, cursor.getLong(1))
-
-            assertFalse(cursor.moveToNext())
-        }
-    }
-
-    @Test
-    fun testClearDirty_removeCachedGroupMembership() {
-        val ab = addressBookGroupsAsCategories
-        val group = newGroup(ab)
-
-        val contact1 = LocalContact(ab, Contact().apply { displayName = "Test" }, "fn.vcf", null, 0)
-        contact1.add()
-
-        // insert cached group membership, but no group membership
-        ab.provider!!.insert(
-            ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), ContentValues().apply {
-                put(CachedGroupMembership.MIMETYPE, CachedGroupMembership.CONTENT_ITEM_TYPE)
-                put(CachedGroupMembership.RAW_CONTACT_ID, contact1.id)
-                put(CachedGroupMembership.GROUP_ID, group.id)
-            }
-        )
-
-        group.clearDirty(null, null)
-
-        // cached group membership should be gone
-        ab.provider!!.query(
-            ab.syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(CachedGroupMembership.GROUP_ID, CachedGroupMembership.RAW_CONTACT_ID),
-            "${CachedGroupMembership.MIMETYPE}=?", arrayOf(CachedGroupMembership.CONTENT_ITEM_TYPE),
-            null
-        )!!.use { cursor ->
-            assertFalse(cursor.moveToNext())
-        }
-    }
-
-
-    @Test
-    fun testMarkMembersDirty() {
-        val ab = addressBookGroupsAsCategories
-        val group = newGroup(ab)
-
-        val contact1 = LocalContact(ab, Contact().apply { displayName = "Test" }, "fn.vcf", null, 0)
-        contact1.add()
-
-        val batch = BatchOperation(ab.provider!!)
-        contact1.addToGroup(batch, group.id!!)
-        batch.commit()
-
-        assertEquals(0, ab.findDirty().size)
-        group.markMembersDirty()
-        assertEquals(contact1.id, ab.findDirty().first().id)
-    }
-
-
-    @Test
-    fun testPrepareForUpload() {
-        val group = newGroup()
-        assertNull(group.getContact().uid)
-
-        val fileName = group.prepareForUpload()
-        val newUid = group.getContact().uid
-        assertNotNull(newUid)
-        assertEquals("$newUid.vcf", fileName)
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/LocalTestAddressBook.kt

@@ -1,38 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.accounts.Account
-import android.content.ContentProviderClient
-import android.content.Context
-import at.bitfire.vcard4android.GroupMethod
-
-class LocalTestAddressBook(
-    context: Context,
-    provider: ContentProviderClient,
-    override val groupMethod: GroupMethod
-): LocalAddressBook(context, ACCOUNT, provider) {
-
-    companion object {
-        val ACCOUNT = Account("LocalTestAddressBook", "at.bitfire.davdroid.test")
-    }
-
-    override var mainAccount: Account
-        get() = throw NotImplementedError()
-        set(value) = throw NotImplementedError()
-
-    override var readOnly: Boolean
-        get() = false
-        set(value) = throw NotImplementedError()
-
-
-    fun clear() {
-        for (contact in queryContacts(null, null))
-            contact.delete()
-        for (group in queryGroups(null, null))
-            group.delete()
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/contactrow/CachedGroupMembershipHandlerTest.kt

@@ -1,63 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource.contactrow
-
-import android.Manifest
-import android.content.ContentProviderClient
-import android.content.ContentValues
-import android.provider.ContactsContract
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.test.rule.GrantPermissionRule
-import at.bitfire.davdroid.resource.LocalContact
-import at.bitfire.davdroid.resource.LocalTestAddressBook
-import at.bitfire.vcard4android.CachedGroupMembership
-import at.bitfire.vcard4android.Contact
-import at.bitfire.vcard4android.GroupMethod
-import org.junit.*
-import org.junit.Assert.assertArrayEquals
-
-class CachedGroupMembershipHandlerTest {
-
-    companion object {
-
-        @JvmField
-        @ClassRule
-        val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
-
-        private lateinit var provider: ContentProviderClient
-        private lateinit var addressBook: LocalTestAddressBook
-
-        @BeforeClass
-        @JvmStatic
-        fun connect() {
-            val context = InstrumentationRegistry.getInstrumentation().context
-            provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
-            Assert.assertNotNull(provider)
-
-            addressBook = LocalTestAddressBook(context, provider, GroupMethod.GROUP_VCARDS)
-        }
-
-        @AfterClass
-        @JvmStatic
-        fun disconnect() {
-            @Suppress("DEPRECATION")
-            provider.release()
-        }
-
-    }
-
-
-    @Test
-    fun testMembership() {
-        val contact = Contact()
-        val localContact = LocalContact(addressBook, contact, null, null, 0)
-        CachedGroupMembershipHandler(localContact).handle(ContentValues().apply {
-            put(CachedGroupMembership.GROUP_ID, 123456)
-            put(CachedGroupMembership.RAW_CONTACT_ID, 789)
-        }, contact)
-        assertArrayEquals(arrayOf(123456L), localContact.cachedGroupMemberships.toArray())
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/contactrow/GroupMembershipBuilderTest.kt

@@ -1,75 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource.contactrow
-
-import android.Manifest
-import android.content.ContentProviderClient
-import android.net.Uri
-import android.provider.ContactsContract
-import android.provider.ContactsContract.CommonDataKinds.GroupMembership
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.test.rule.GrantPermissionRule
-import at.bitfire.davdroid.resource.LocalTestAddressBook
-import at.bitfire.vcard4android.Contact
-import at.bitfire.vcard4android.GroupMethod
-import org.junit.*
-import org.junit.Assert.assertEquals
-
-class GroupMembershipBuilderTest {
-
-    companion object {
-        @JvmField
-        @ClassRule
-        val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
-
-        private lateinit var provider: ContentProviderClient
-
-        private lateinit var addressBookGroupsAsCategories: LocalTestAddressBook
-        private lateinit var addressBookGroupsAsVCards: LocalTestAddressBook
-
-        @BeforeClass
-        @JvmStatic
-        fun connect() {
-            val context = InstrumentationRegistry.getInstrumentation().targetContext
-            provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
-            Assert.assertNotNull(provider)
-
-            addressBookGroupsAsCategories = LocalTestAddressBook(context, provider, GroupMethod.CATEGORIES)
-            addressBookGroupsAsVCards = LocalTestAddressBook(context, provider, GroupMethod.GROUP_VCARDS)
-        }
-
-        @AfterClass
-        @JvmStatic
-        fun disconnect() {
-            @Suppress("DEPRECATION")
-            provider.release()
-        }
-    }
-
-
-    @Test
-    fun testCategories_GroupsAsCategories() {
-        val contact = Contact().apply {
-            categories += "TEST GROUP"
-        }
-        GroupMembershipBuilder(Uri.EMPTY, null, contact, addressBookGroupsAsCategories, false).build().also { result ->
-            assertEquals(1, result.size)
-            assertEquals(GroupMembership.CONTENT_ITEM_TYPE, result[0].values[GroupMembership.MIMETYPE])
-            assertEquals(addressBookGroupsAsCategories.findOrCreateGroup("TEST GROUP"), result[0].values[GroupMembership.GROUP_ROW_ID])
-        }
-    }
-
-    @Test
-    fun testCategories_GroupsAsVCards() {
-        val contact = Contact().apply {
-            categories += "TEST GROUP"
-        }
-        GroupMembershipBuilder(Uri.EMPTY, null, contact, addressBookGroupsAsVCards, false).build().also { result ->
-            // group membership is constructed during post-processing
-            assertEquals(0, result.size)
-        }
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/resource/contactrow/GroupMembershipHandlerTest.kt

@@ -1,79 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource.contactrow
-
-import android.Manifest
-import android.content.ContentProviderClient
-import android.content.ContentValues
-import android.provider.ContactsContract
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.test.rule.GrantPermissionRule
-import at.bitfire.davdroid.resource.LocalContact
-import at.bitfire.davdroid.resource.LocalTestAddressBook
-import at.bitfire.vcard4android.CachedGroupMembership
-import at.bitfire.vcard4android.Contact
-import at.bitfire.vcard4android.GroupMethod
-import org.junit.*
-import org.junit.Assert.assertArrayEquals
-import org.junit.Assert.assertTrue
-
-class GroupMembershipHandlerTest {
-
-    @JvmField
-    @Rule
-    val permissionRule = GrantPermissionRule.grant(Manifest.permission.READ_CONTACTS, Manifest.permission.WRITE_CONTACTS)!!
-
-    private lateinit var provider: ContentProviderClient
-
-    private lateinit var addressBookGroupsAsCategories: LocalTestAddressBook
-    private var addressBookGroupsAsCategoriesGroup: Long = -1
-
-    private lateinit var addressBookGroupsAsVCards: LocalTestAddressBook
-
-    @Before
-    fun connect() {
-        val context = InstrumentationRegistry.getInstrumentation().targetContext
-        provider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)!!
-        Assert.assertNotNull(provider)
-
-        addressBookGroupsAsCategories = LocalTestAddressBook(context, provider, GroupMethod.CATEGORIES)
-        addressBookGroupsAsCategoriesGroup = addressBookGroupsAsCategories.findOrCreateGroup("TEST GROUP")
-
-        addressBookGroupsAsVCards = LocalTestAddressBook(context, provider, GroupMethod.GROUP_VCARDS)
-    }
-
-    @After
-    fun disconnect() {
-        @Suppress("DEPRECATION")
-        provider.release()
-    }
-
-
-    @Test
-    fun testMembership_GroupsAsCategories() {
-        val contact = Contact()
-        val localContact = LocalContact(addressBookGroupsAsCategories, contact, null, null, 0)
-        GroupMembershipHandler(localContact).handle(ContentValues().apply {
-            put(CachedGroupMembership.GROUP_ID, addressBookGroupsAsCategoriesGroup)
-            put(CachedGroupMembership.RAW_CONTACT_ID, -1)
-        }, contact)
-        assertArrayEquals(arrayOf(addressBookGroupsAsCategoriesGroup), localContact.groupMemberships.toArray())
-        assertArrayEquals(arrayOf("TEST GROUP"), contact.categories.toArray())
-    }
-
-
-    @Test
-    fun testMembership_GroupsAsVCards() {
-        val contact = Contact()
-        val localContact = LocalContact(addressBookGroupsAsVCards, contact, null, null, 0)
-        GroupMembershipHandler(localContact).handle(ContentValues().apply {
-            put(CachedGroupMembership.GROUP_ID, 12345)    // because the group name is not queried and put into CATEGORIES, the group doesn't have to really exist
-            put(CachedGroupMembership.RAW_CONTACT_ID, -1)
-        }, contact)
-        assertArrayEquals(arrayOf(12345L), localContact.groupMemberships.toArray())
-        assertTrue(contact.categories.isEmpty())
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/servicedetection/RefreshCollectionsWorkerTest.kt

@@ -1,767 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.servicedetection
-
-import android.content.Context
-import android.security.NetworkSecurityPolicy
-import android.util.Log
-import androidx.hilt.work.HiltWorkerFactory
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.work.Configuration
-import androidx.work.WorkManager
-import androidx.work.await
-import androidx.work.testing.WorkManagerTestInitHelper
-import at.bitfire.davdroid.TestUtils.workScheduledOrRunning
-import at.bitfire.davdroid.TestUtils.workScheduledOrRunningOrSuccessful
-import at.bitfire.davdroid.db.AppDatabase
-import at.bitfire.davdroid.db.Collection
-import at.bitfire.davdroid.db.Credentials
-import at.bitfire.davdroid.db.HomeSet
-import at.bitfire.davdroid.db.Principal
-import at.bitfire.davdroid.db.Service
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.network.HttpClient
-import at.bitfire.davdroid.settings.Settings
-import at.bitfire.davdroid.settings.SettingsManager
-import at.bitfire.davdroid.ui.NotificationUtils
-import at.bitfire.davdroid.ui.setup.LoginModel
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import io.mockk.every
-import io.mockk.mockk
-import kotlinx.coroutines.runBlocking
-import okhttp3.mockwebserver.Dispatcher
-import okhttp3.mockwebserver.MockResponse
-import okhttp3.mockwebserver.MockWebServer
-import okhttp3.mockwebserver.RecordedRequest
-import org.apache.commons.lang3.StringUtils
-import org.junit.After
-import org.junit.Assert.assertEquals
-import org.junit.Assert.assertFalse
-import org.junit.Assert.assertTrue
-import org.junit.Assume
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-import java.net.URI
-import javax.inject.Inject
-
-@HiltAndroidTest
-class RefreshCollectionsWorkerTest {
-    
-    @get:Rule
-    var hiltRule = HiltAndroidRule(this)
-
-    val context: Context = InstrumentationRegistry.getInstrumentation().targetContext
-
-    @Inject
-    lateinit var workerFactory: HiltWorkerFactory
-    
-    @Before
-    fun setUp() {
-        hiltRule.inject()
-
-        // The test application is an instance of HiltTestApplication, which doesn't initialize notification channels.
-        // However, we need notification channels for the ongoing work notifications.
-        NotificationUtils.createChannels(context)
-
-        // Initialize WorkManager for instrumentation tests.
-        val config = Configuration.Builder()
-            .setMinimumLoggingLevel(Log.DEBUG)
-            .setWorkerFactory(workerFactory)
-            .build()
-        WorkManagerTestInitHelper.initializeTestWorkManager(context, config)
-    }
-
-    
-    // Test dependencies
-
-    companion object {
-        private const val PATH_CALDAV = "/caldav"
-        private const val PATH_CARDDAV = "/carddav"
-
-        private const val SUBPATH_PRINCIPAL = "/principal"
-        private const val SUBPATH_PRINCIPAL_INACCESSIBLE = "/inaccessible-principal"
-        private const val SUBPATH_PRINCIPAL_WITHOUT_COLLECTIONS = "/principal2"
-        private const val SUBPATH_ADDRESSBOOK_HOMESET = "/addressbooks-homeset"
-        private const val SUBPATH_ADDRESSBOOK_HOMESET_EMPTY = "/addressbooks-homeset-empty"
-        private const val SUBPATH_ADDRESSBOOK = "/addressbooks/my-contacts"
-        private const val SUBPATH_ADDRESSBOOK_INACCESSIBLE = "/addressbooks/inaccessible-contacts"
-    }
-
-    @Inject
-    lateinit var db: AppDatabase
-
-    @Inject
-    lateinit var settings: SettingsManager
-
-    var mockServer =  MockWebServer()
-
-    lateinit var client: HttpClient
-    lateinit var loginModel: LoginModel
-
-    @Before
-    fun mockServerSetup() {
-        // Start mock web server
-        mockServer.dispatcher = TestDispatcher()
-        mockServer.start()
-
-        loginModel = LoginModel()
-        loginModel.baseURI = URI.create("/")
-        loginModel.credentials = Credentials("mock", "12345")
-
-        client = HttpClient.Builder(InstrumentationRegistry.getInstrumentation().targetContext)
-            .addAuthentication(null, loginModel.credentials!!)
-            .build()
-
-        Assume.assumeTrue(NetworkSecurityPolicy.getInstance().isCleartextTrafficPermitted)
-    }
-
-    @After
-    fun cleanUp() {
-        mockServer.shutdown()
-        db.close()
-    }
-
-    
-    // Actual tests
-    
-    /* Often fails for unknown reasons:
-    @Test
-    fun testRefreshCollections_enqueuesWorker() {
-        val service = createTestService(Service.TYPE_CALDAV)!!
-
-        val (workerName, enqueueOp) = RefreshCollectionsWorker.enqueue(context, service.id)
-        enqueueOp.result.get()
-        assertTrue(workScheduledOrRunningOrSuccessful(context, workerName))
-    }*/
-
-    @Test
-    fun testDiscoverHomesets() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-        val baseUrl = mockServer.url(PATH_CARDDAV + SUBPATH_PRINCIPAL)
-
-        // Query home sets
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .discoverHomesets(baseUrl)
-
-        // Check home sets have been saved to database
-        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET/"), db.homeSetDao().getByService(service.id).first().url)
-        assertEquals(1, db.homeSetDao().getByService(service.id).size)
-    }
-
-
-    // refreshHomesetsAndTheirCollections
-
-    @Test
-    fun refreshHomesetsAndTheirCollections_addsNewCollection() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // save homeset in DB
-        val homesetId = db.homeSetDao().insert(
-            HomeSet(id=0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
-        )
-
-        // Refresh
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshHomesetsAndTheirCollections()
-
-        // Check the collection defined in homeset is now in the database
-        assertEquals(
-            Collection(
-                1,
-                service.id,
-                homesetId,
-                1, // will have gotten an owner too
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
-                displayName = "My Contacts",
-                description = "My Contacts Description"
-            ),
-            db.collectionDao().getByService(service.id).first()
-        )
-    }
-
-    @Test
-    fun refreshHomesetsAndTheirCollections_updatesExistingCollection() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // save "old" collection in DB
-        val collectionId = db.collectionDao().insertOrUpdateByUrl(
-            Collection(
-                0,
-                service.id,
-                null,
-                null,
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
-                displayName = "My Contacts",
-                description = "My Contacts Description"
-            )
-        )
-
-        // Refresh
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshHomesetsAndTheirCollections()
-
-        // Check the collection got updated
-        assertEquals(
-            Collection(
-                collectionId,
-                service.id,
-                null,
-                null,
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
-                displayName = "My Contacts",
-                description = "My Contacts Description"
-            ),
-            db.collectionDao().get(collectionId)
-        )
-    }
-
-    @Test
-    fun refreshHomesetsAndTheirCollections_preservesCollectionFlags() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // save "old" collection in DB - with set flags
-        val collectionId = db.collectionDao().insertOrUpdateByUrl(
-            Collection(
-                0,
-                service.id,
-                null,
-                null,
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
-                displayName = "My Contacts",
-                description = "My Contacts Description",
-                forceReadOnly = true,
-                sync = true
-            )
-        )
-
-        // Refresh
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshHomesetsAndTheirCollections()
-
-        // Check the collection got updated
-        assertEquals(
-            Collection(
-                collectionId,
-                service.id,
-                null,
-                null,
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
-                displayName = "My Contacts",
-                description = "My Contacts Description",
-                forceReadOnly = true,
-                sync = true
-            ),
-            db.collectionDao().get(collectionId)
-        )
-    }
-
-    @Test
-    fun refreshHomesetsAndTheirCollections_marksRemovedCollectionsAsHomeless() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // save homeset in DB - which is empty (zero address books) on the serverside
-        val homesetId = db.homeSetDao().insert(
-            HomeSet(id=0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET_EMPTY"))
-        )
-
-        // place collection in DB - as part of the homeset
-        val collectionId = db.collectionDao().insertOrUpdateByUrl(
-            Collection(
-                0,
-                service.id,
-                homesetId,
-                null,
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
-            )
-        )
-
-        // Refresh - should mark collection as homeless, because serverside homeset is empty
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshHomesetsAndTheirCollections()
-
-        // Check the collection, is now marked as homeless
-        assertEquals(null, db.collectionDao().get(collectionId)!!.homeSetId)
-    }
-
-    @Test
-    fun refreshHomesetsAndTheirCollections_addsOwnerUrls() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // save a homeset in DB
-        val homesetId = db.homeSetDao().insert(
-            HomeSet(id=0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
-        )
-
-        // place collection in DB - as part of the homeset
-        val collectionId = db.collectionDao().insertOrUpdateByUrl(
-            Collection(
-                0,
-                service.id,
-                homesetId, // part of above home set
-                null,
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
-            )
-        )
-
-        // Refresh - homesets and their collections
-        assertEquals(0, db.principalDao().getByService(service.id).size)
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshHomesetsAndTheirCollections()
-
-        // Check principal saved and the collection was updated with its reference
-        val principals = db.principalDao().getByService(service.id)
-        assertEquals(1, principals.size)
-        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL"), principals[0].url)
-        assertEquals(null, principals[0].displayName)
-        assertEquals(
-            principals[0].id,
-            db.collectionDao().get(collectionId)!!.ownerId
-        )
-    }
-
-
-    // refreshHomelessCollections
-
-    @Test
-    fun refreshHomelessCollections_updatesExistingCollection() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // place homeless collection in DB
-        val collectionId = db.collectionDao().insertOrUpdateByUrl(
-            Collection(
-                0,
-                service.id,
-                null,
-                null,
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
-            )
-        )
-
-        // Refresh
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshHomelessCollections()
-
-        // Check the collection got updated - with display name and description
-        assertEquals(
-            Collection(
-                collectionId,
-                service.id,
-                null,
-                1, // will have gotten an owner too
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
-                displayName = "My Contacts",
-                description = "My Contacts Description"
-            ),
-            db.collectionDao().get(collectionId)
-        )
-    }
-
-    @Test
-    fun refreshHomelessCollections_deletesInaccessibleCollections() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // place homeless collection in DB - it is also inaccessible
-        val collectionId = db.collectionDao().insertOrUpdateByUrl(
-            Collection(
-                0,
-                service.id,
-                null,
-                null,
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_INACCESSIBLE")
-            )
-        )
-
-        // Refresh - should delete collection
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshHomelessCollections()
-
-        // Check the collection got deleted
-        assertEquals(null, db.collectionDao().get(collectionId))
-    }
-
-    @Test
-    fun refreshHomelessCollections_addsOwnerUrls() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // place homeless collection in DB
-        val collectionId = db.collectionDao().insertOrUpdateByUrl(
-            Collection(
-                0,
-                service.id,
-                null,
-                null,
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"),
-            )
-        )
-
-        // Refresh homeless collections
-        assertEquals(0, db.principalDao().getByService(service.id).size)
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshHomelessCollections()
-
-        // Check principal saved and the collection was updated with its reference
-        val principals = db.principalDao().getByService(service.id)
-        assertEquals(1, principals.size)
-        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL"), principals[0].url)
-        assertEquals(null, principals[0].displayName)
-        assertEquals(
-            principals[0].id,
-            db.collectionDao().get(collectionId)!!.ownerId
-        )
-    }
-
-
-    // refreshPrincipals
-
-    @Test
-    fun refreshPrincipals_inaccessiblePrincipal() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // place principal without display name in db
-        val principalId = db.principalDao().insert(
-            Principal(
-                0,
-                service.id,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL_INACCESSIBLE"), // no trailing slash
-                null // no display name for now
-            )
-        )
-        // add an associated collection - as the principal is rightfully removed otherwise
-        db.collectionDao().insertOrUpdateByUrl(
-            Collection(
-                0,
-                service.id,
-                null,
-                principalId, // create association with principal
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"), // with trailing slash
-            )
-        )
-
-        // Refresh principals
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshPrincipals()
-
-        // Check principal was not updated
-        val principals = db.principalDao().getByService(service.id)
-        assertEquals(1, principals.size)
-        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL_INACCESSIBLE"), principals[0].url)
-        assertEquals(null, principals[0].displayName)
-    }
-
-    @Test
-    fun refreshPrincipals_updatesPrincipal() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // place principal without display name in db
-        val principalId = db.principalDao().insert(
-            Principal(
-                0,
-                service.id,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL"), // no trailing slash
-                null // no display name for now
-            )
-        )
-        // add an associated collection - as the principal is rightfully removed otherwise
-        db.collectionDao().insertOrUpdateByUrl(
-            Collection(
-                0,
-                service.id,
-                null,
-                principalId, // create association with principal
-                Collection.TYPE_ADDRESSBOOK,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/"), // with trailing slash
-            )
-        )
-
-        // Refresh principals
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshPrincipals()
-
-        // Check principal now got a display name
-        val principals = db.principalDao().getByService(service.id)
-        assertEquals(1, principals.size)
-        assertEquals(mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL"), principals[0].url)
-        assertEquals("Mr. Wobbles", principals[0].displayName)
-    }
-
-    @Test
-    fun refreshPrincipals_deletesPrincipalsWithoutCollections() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        // place principal without collections in DB
-        db.principalDao().insert(
-            Principal(
-                0,
-                service.id,
-                mockServer.url("$PATH_CARDDAV$SUBPATH_PRINCIPAL_WITHOUT_COLLECTIONS/")
-            )
-        )
-
-        // Refresh principals - detecting it does not own collections
-        RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-            .refreshPrincipals()
-
-        // Check principal was deleted
-        val principals = db.principalDao().getByService(service.id)
-        assertEquals(0, principals.size)
-    }
-
-    // Others
-
-    @Test
-    fun shouldPreselect_none() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        val settings = mockk<SettingsManager>()
-        every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_NONE
-        every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns ""
-
-        val collection = Collection(
-            0,
-            service.id,
-            0,
-            type = Collection.TYPE_ADDRESSBOOK,
-            url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
-        )
-        val homesets = listOf(
-            HomeSet(0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
-        )
-
-        val refresher = RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-        assertFalse(refresher.shouldPreselect(collection, homesets))
-    }
-
-    @Test
-    fun shouldPreselect_all() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        val settings = mockk<SettingsManager>()
-        every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_ALL
-        every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns ""
-
-        val collection = Collection(
-            0,
-            service.id,
-            0,
-            type = Collection.TYPE_ADDRESSBOOK,
-            url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
-        )
-        val homesets = listOf(
-            HomeSet(0, service.id, false, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
-        )
-
-        val refresher = RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-        assertTrue(refresher.shouldPreselect(collection, homesets))
-    }
-
-    @Test
-    fun shouldPreselect_all_blacklisted() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-        val url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
-
-        val settings = mockk<SettingsManager>()
-        every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_ALL
-        every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns url.toString()
-
-        val collection = Collection(
-            0,
-            service.id,
-            0,
-            type = Collection.TYPE_ADDRESSBOOK,
-            url = url
-        )
-        val homesets = listOf(
-            HomeSet(0, service.id, false, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
-        )
-
-        val refresher = RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-        assertFalse(refresher.shouldPreselect(collection, homesets))
-    }
-
-    @Test
-    fun shouldPreselect_personal_notPersonal() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        val settings = mockk<SettingsManager>()
-        every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_PERSONAL
-        every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns ""
-
-        val collection = Collection(
-            0,
-            service.id,
-            0,
-            type = Collection.TYPE_ADDRESSBOOK,
-            url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
-        )
-        val homesets = listOf(
-            HomeSet(0, service.id, false, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
-        )
-
-        val refresher = RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-        assertFalse(refresher.shouldPreselect(collection, homesets))
-    }
-
-    @Test
-    fun shouldPreselect_personal_isPersonal() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-
-        val settings = mockk<SettingsManager>()
-        every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_PERSONAL
-        every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns ""
-
-        val collection = Collection(
-            0,
-            service.id,
-            0,
-            type = Collection.TYPE_ADDRESSBOOK,
-            url = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
-        )
-        val homesets = listOf(
-            HomeSet(0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
-        )
-
-        val refresher = RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-        assertTrue(refresher.shouldPreselect(collection, homesets))
-    }
-
-    @Test
-    fun shouldPreselect_personal_isPersonalButBlacklisted() {
-        val service = createTestService(Service.TYPE_CARDDAV)!!
-        val collectionUrl = mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK/")
-
-        val settings = mockk<SettingsManager>()
-        every { settings.getIntOrNull(Settings.PRESELECT_COLLECTIONS) } returns Settings.PRESELECT_COLLECTIONS_PERSONAL
-        every { settings.getString(Settings.PRESELECT_COLLECTIONS_EXCLUDED) } returns collectionUrl.toString()
-
-        val collection = Collection(
-            0,
-            service.id,
-            0,
-            type = Collection.TYPE_ADDRESSBOOK,
-            url = collectionUrl
-        )
-        val homesets = listOf(
-            HomeSet(0, service.id, true, mockServer.url("$PATH_CARDDAV$SUBPATH_ADDRESSBOOK_HOMESET"))
-        )
-
-        val refresher = RefreshCollectionsWorker.Refresher(db, service, settings, client.okHttpClient)
-        assertFalse(refresher.shouldPreselect(collection, homesets))
-    }
-
-    // Test helpers and dependencies
-    
-    private fun createTestService(serviceType: String) : Service? {
-        val service = Service(id=0, accountName="test", type=serviceType, principal = null)
-        val serviceId = db.serviceDao().insertOrReplace(service)
-        return db.serviceDao().get(serviceId)
-    }
-
-    class TestDispatcher: Dispatcher() {
-
-        override fun dispatch(request: RecordedRequest): MockResponse {
-            val path = StringUtils.removeEnd(request.path!!, "/")
-
-            if (request.method.equals("PROPFIND", true)) {
-                val properties = when (path) {
-                    PATH_CALDAV,
-                    PATH_CARDDAV ->
-                        "<current-user-principal>" +
-                        "   <href>$path${SUBPATH_PRINCIPAL}</href>" +
-                        "</current-user-principal>"
-
-                    PATH_CARDDAV + SUBPATH_PRINCIPAL ->
-                        "<resourcetype><principal/></resourcetype>" +
-                        "<displayname>Mr. Wobbles</displayname>" +
-                        "<CARD:addressbook-home-set>" +
-                        "   <href>${PATH_CARDDAV}${SUBPATH_ADDRESSBOOK_HOMESET}</href>" +
-                        "</CARD:addressbook-home-set>"
-
-                    PATH_CARDDAV + SUBPATH_PRINCIPAL_WITHOUT_COLLECTIONS ->
-                        "<CARD:addressbook-home-set>" +
-                        "   <href>${PATH_CARDDAV}${SUBPATH_ADDRESSBOOK_HOMESET_EMPTY}</href>" +
-                        "</CARD:addressbook-home-set>" +
-                        "<displayname>Mr. Wobbles Jr.</displayname>"
-
-                    PATH_CARDDAV + SUBPATH_ADDRESSBOOK,
-                    PATH_CARDDAV + SUBPATH_ADDRESSBOOK_HOMESET ->
-                        "<resourcetype>" +
-                        "   <collection/>" +
-                        "   <CARD:addressbook/>" +
-                        "</resourcetype>" +
-                        "<displayname>My Contacts</displayname>" +
-                        "<CARD:addressbook-description>My Contacts Description</CARD:addressbook-description>" +
-                        "<owner>" +
-                        "   <href>${PATH_CARDDAV + SUBPATH_PRINCIPAL}</href>" +
-                        "</owner>"
-
-                    PATH_CALDAV + SUBPATH_PRINCIPAL ->
-                        "<CAL:calendar-user-address-set>" +
-                        "  <href>urn:unknown-entry</href>" +
-                        "  <href>mailto:email1@example.com</href>" +
-                        "  <href>mailto:email2@example.com</href>" +
-                        "</CAL:calendar-user-address-set>"
-
-                    SUBPATH_ADDRESSBOOK_HOMESET_EMPTY -> ""
-
-                    else -> ""
-                }
-
-                var responseBody = ""
-                var responseCode = 207
-                when (path) {
-                    PATH_CARDDAV + SUBPATH_ADDRESSBOOK_HOMESET ->
-                        responseBody =
-                            "<multistatus xmlns='DAV:' xmlns:CARD='urn:ietf:params:xml:ns:carddav' xmlns:CAL='urn:ietf:params:xml:ns:caldav'>" +
-                            "<response>" +
-                            "   <href>${PATH_CARDDAV + SUBPATH_ADDRESSBOOK}</href>" +
-                            "   <propstat><prop>" +
-                                    properties +
-                            "   </prop></propstat>" +
-                            "   <status>HTTP/1.1 200 OK</status>" +
-                            "</response>" +
-                            "</multistatus>"
-
-                    PATH_CARDDAV + SUBPATH_PRINCIPAL_INACCESSIBLE,
-                    PATH_CARDDAV + SUBPATH_ADDRESSBOOK_INACCESSIBLE ->
-                        responseCode = 404
-
-                    else ->
-                        responseBody =
-                            "<multistatus xmlns='DAV:' xmlns:CARD='urn:ietf:params:xml:ns:carddav' xmlns:CAL='urn:ietf:params:xml:ns:caldav'>" +
-                            "<response>" +
-                            "   <href>$path</href>" +
-                            "   <propstat><prop>"+
-                                    properties +
-                            "   </prop></propstat>" +
-                            "</response>" +
-                            "</multistatus>"
-                }
-
-                Logger.log.info("Queried: $path")
-                Logger.log.info("Response: $responseBody")
-                return MockResponse()
-                    .setResponseCode(responseCode)
-                    .setBody(responseBody)
-            }
-
-            return MockResponse().setResponseCode(404)
-        }
-
-    }
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/settings/AccountSettingsTest.kt

@@ -1,140 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.settings
-
-import android.accounts.Account
-import android.accounts.AccountManager
-import android.content.ContentResolver
-import android.provider.CalendarContract
-import android.provider.ContactsContract
-import android.util.Log
-import androidx.annotation.RequiresApi
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.work.Configuration
-import androidx.work.testing.WorkManagerTestInitHelper
-import at.bitfire.davdroid.R
-import at.bitfire.davdroid.TestUtils
-import at.bitfire.davdroid.db.Credentials
-import at.bitfire.davdroid.syncadapter.AccountUtils
-import at.bitfire.davdroid.syncadapter.PeriodicSyncWorker
-import at.bitfire.davdroid.ui.NotificationUtils
-import at.bitfire.ical4android.TaskProvider
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import org.junit.After
-import org.junit.Assert.assertEquals
-import org.junit.Assert.assertFalse
-import org.junit.Assert.assertTrue
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-import javax.inject.Inject
-
-/*@HiltAndroidTest
-class AccountSettingsTest {
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    @Inject
-    lateinit var settingsManager: SettingsManager
-
-
-    private val context = InstrumentationRegistry.getInstrumentation().targetContext
-
-    val account = Account(javaClass.canonicalName, context.getString(R.string.account_type))
-    val fakeCredentials = Credentials("test", "test")
-
-    val authorities = listOf(
-        context.getString(R.string.address_books_authority),
-        CalendarContract.AUTHORITY,
-        TaskProvider.ProviderName.JtxBoard.authority,
-        TaskProvider.ProviderName.OpenTasks.authority,
-        TaskProvider.ProviderName.TasksOrg.authority
-    )
-
-    @Before
-    fun setUp() {
-        hiltRule.inject()
-
-        assertTrue(AccountUtils.createAccount(
-            context,
-            account,
-            AccountSettings.initialUserData(fakeCredentials)
-        ))
-        ContentResolver.setIsSyncable(account, CalendarContract.AUTHORITY, 1)
-        ContentResolver.setIsSyncable(account, ContactsContract.AUTHORITY, 0)
-
-        // The test application is an instance of HiltTestApplication, which doesn't initialize notification channels.
-        // However, we need notification channels for the ongoing work notifications.
-        NotificationUtils.createChannels(context)
-
-        // Initialize WorkManager for instrumentation tests.
-        val config = Configuration.Builder()
-            .setMinimumLoggingLevel(Log.DEBUG)
-            .build()
-        WorkManagerTestInitHelper.initializeTestWorkManager(context, config)
-    }
-
-    @After
-    @RequiresApi(22)
-    fun removeAccount() {
-        AccountManager.get(context).removeAccountExplicitly(account)
-    }
-
-
-    @Test
-    fun testSyncIntervals() {
-        val settings = AccountSettings(context, account)
-        val presetIntervals =
-            context.resources.getStringArray(R.array.settings_sync_interval_seconds)
-                .map { it.toLong() }
-                .filter { it != AccountSettings.SYNC_INTERVAL_MANUALLY }
-        for (interval in presetIntervals) {
-            assertTrue(settings.setSyncInterval(CalendarContract.AUTHORITY, interval))
-            assertEquals(interval, settings.getSyncInterval(CalendarContract.AUTHORITY))
-        }
-    }
-
-    @Test
-    fun testSyncIntervals_Syncable() {
-        val settings = AccountSettings(context, account)
-        val interval = 15*60L    // 15 min
-        val result = settings.setSyncInterval(CalendarContract.AUTHORITY, interval)
-        assertTrue(result)
-    }
-
-    @Test(expected = IllegalArgumentException::class)
-    fun testSyncIntervals_TooShort() {
-        val settings = AccountSettings(context, account)
-        val interval = 60L      // 1 min is not supported by Android
-        settings.setSyncInterval(CalendarContract.AUTHORITY, interval)
-    }
-
-    @Test
-    fun testSyncIntervals_activatesPeriodicSyncWorker() {
-        val settings = AccountSettings(context, account)
-        val interval = 15*60L
-        for (authority in authorities) {
-            ContentResolver.setIsSyncable(account, authority, 1)
-            assertTrue(settings.setSyncInterval(authority, interval))
-            assertTrue(TestUtils.workScheduledOrRunningOrSuccessful(context, PeriodicSyncWorker.workerName(account, authority)))
-            assertEquals(interval, settings.getSyncInterval(authority))
-        }
-    }
-
-    @Test
-    fun testSyncIntervals_disablesPeriodicSyncWorker() {
-        val settings = AccountSettings(context, account)
-        val interval = AccountSettings.SYNC_INTERVAL_MANUALLY // -1
-        for (authority in authorities) {
-            ContentResolver.setIsSyncable(account, authority, 1)
-            assertTrue(settings.setSyncInterval(authority, interval))
-            assertFalse(TestUtils.workScheduledOrRunningOrSuccessful(context, PeriodicSyncWorker.workerName(account, authority)))
-            assertEquals(AccountSettings.SYNC_INTERVAL_MANUALLY, settings.getSyncInterval(authority))
-        }
-    }
-
-}*/

app/src/androidTest/kotlin/at/bitfire/davdroid/settings/SettingsManagerTest.kt

@@ -1,96 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.settings
-
-import at.bitfire.davdroid.TestUtils.getOrAwaitValue
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import kotlinx.coroutines.CompletableDeferred
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.runBlocking
-import org.junit.After
-import org.junit.Assert.assertEquals
-import org.junit.Assert.assertFalse
-import org.junit.Assert.assertNull
-import org.junit.Assert.assertTrue
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-import javax.inject.Inject
-
-@HiltAndroidTest
-class SettingsManagerTest {
-
-    companion object {
-        /** Use this setting to test SettingsManager methods. Will be removed after every test run. */
-        const val SETTING_TEST = "test"
-    }
-
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    @Inject lateinit var settingsManager: SettingsManager
-
-    @Before
-    fun inject() {
-        hiltRule.inject()
-    }
-
-    @After
-    fun removeTestSetting() {
-        settingsManager.remove(SETTING_TEST)
-    }
-
-
-    @Test
-    fun test_containsKey_NotExisting() {
-        assertFalse(settingsManager.containsKey("notExisting"))
-    }
-
-    @Test
-    fun test_containsKey_Existing() {
-        // provided by DefaultsProvider
-        assertEquals(Settings.PROXY_TYPE_SYSTEM, settingsManager.getInt(Settings.PROXY_TYPE))
-    }
-
-
-    @Test
-    fun test_getBooleanLive_getValue() = runBlocking(Dispatchers.Main) {    // observeForever can't be run in background thread
-        val live = settingsManager.getBooleanLive(SETTING_TEST)
-        assertNull(live.value)
-
-        // set value
-        settingsManager.putBoolean(SETTING_TEST, true)
-        assertTrue(live.getOrAwaitValue()!!)
-
-        // set another value
-        live.value = false
-        assertFalse(live.getOrAwaitValue()!!)
-    }
-
-
-    @Test
-    fun test_ObserverCalledWhenValueChanges() {
-        val value = CompletableDeferred<Int>()
-        val observer = SettingsManager.OnChangeListener {
-            value.complete(settingsManager.getInt(SETTING_TEST))
-        }
-
-        try {
-            settingsManager.addOnChangeListener(observer)
-            settingsManager.putInt(SETTING_TEST, 123)
-
-            runBlocking {
-                // wait until observer is called
-                assertEquals(123, value.await())
-            }
-
-        } finally {
-            settingsManager.removeOnChangeListener(observer)
-        }
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/ui/AppSettingsActivityTest.kt

@@ -1,13 +0,0 @@
-package at.bitfire.davdroid.ui
-
-import org.junit.Assert.assertEquals
-import org.junit.Test
-
-class AppSettingsActivityTest {
-    @Test
-    fun testResourceQualifierToLanguageTag() {
-        assertEquals("en", AppSettingsActivity.resourceQualifierToLanguageTag("en"))
-        assertEquals("en-GB", AppSettingsActivity.resourceQualifierToLanguageTag("en-GB"))
-        assertEquals("en-GB", AppSettingsActivity.resourceQualifierToLanguageTag("en-rGB"))
-    }
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/ui/setup/AccountDetailsFragmentTest.kt

@@ -1,222 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.ui.setup
-
-import android.accounts.AccountManager
-import android.content.ContentResolver
-import android.content.Context
-import android.provider.CalendarContract
-import android.util.Log
-import androidx.annotation.RequiresApi
-import androidx.arch.core.executor.testing.InstantTaskExecutorRule
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.work.Configuration
-import androidx.work.testing.WorkManagerTestInitHelper
-import at.bitfire.davdroid.R
-import at.bitfire.davdroid.TestUtils.getOrAwaitValue
-import at.bitfire.davdroid.db.AppDatabase
-import at.bitfire.davdroid.db.Credentials
-import at.bitfire.davdroid.resource.TaskUtils
-import at.bitfire.davdroid.servicedetection.DavResourceFinder
-import at.bitfire.davdroid.settings.AccountSettings
-import at.bitfire.davdroid.settings.Settings
-import at.bitfire.davdroid.settings.SettingsManager
-import at.bitfire.davdroid.ui.NotificationUtils
-import at.bitfire.ical4android.TaskProvider
-import at.bitfire.vcard4android.GroupMethod
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import io.mockk.*
-import org.junit.*
-import org.junit.Assert.*
-import javax.inject.Inject
-
-// COMMENTED OUT because it doesn't run reliably [see https://github.com/bitfireAT/davx5/pull/320]
-/*@HiltAndroidTest
-class AccountDetailsFragmentTest {
-
-    @get:Rule
-    var hiltRule = HiltAndroidRule(this)
-
-    @get:Rule
-    var instantTaskExecutorRule = InstantTaskExecutorRule()     // required for TestUtils: LiveData.getOrAwaitValue()
-
-
-    @Inject
-    lateinit var db: AppDatabase
-    @Inject
-    lateinit var settingsManager: SettingsManager
-
-    private val targetContext: Context = InstrumentationRegistry.getInstrumentation().targetContext
-    private val fakeCredentials = Credentials("test", "test")
-
-    @Before
-    fun setUp() {
-        hiltRule.inject()
-
-        // The test application is an instance of HiltTestApplication, which doesn't initialize notification channels.
-        // However, we need notification channels for the ongoing work notifications.
-        NotificationUtils.createChannels(targetContext)
-
-        // Initialize WorkManager for instrumentation tests.
-        val config = Configuration.Builder()
-            .setMinimumLoggingLevel(Log.DEBUG)
-            .build()
-        WorkManagerTestInitHelper.initializeTestWorkManager(targetContext, config)
-    }
-
-    @After
-    fun tearDown() {
-        // Remove accounts created by tests
-        val am = AccountManager.get(targetContext)
-        val accounts = am.getAccountsByType(targetContext.getString(R.string.account_type))
-        for (account in accounts) {
-            am.removeAccountExplicitly(account)
-        }
-    }
-
-
-    @Test
-    fun testModel_CreateAccount_configuresContactsAndCalendars() {
-        val accountName = "MyAccountName"
-        val emptyServiceInfo = DavResourceFinder.Configuration.ServiceInfo()
-        val config = DavResourceFinder.Configuration(emptyServiceInfo, emptyServiceInfo, false, "")
-
-        // Create account -> should also set sync interval in settings
-        val accountCreated = AccountDetailsFragment.Model(targetContext, db, settingsManager)
-            .createAccount(accountName, fakeCredentials, config, GroupMethod.GROUP_VCARDS)
-        assertTrue(accountCreated.getOrAwaitValue(5))
-
-        // Get the created account
-        val account = AccountManager.get(targetContext)
-            .getAccountsByType(targetContext.getString(R.string.account_type))
-            .first { account -> account.name == accountName }
-
-        for (authority in listOf(
-            targetContext.getString(R.string.address_books_authority),
-            CalendarContract.AUTHORITY,
-        )) {
-            // Check isSyncable was set
-            assertEquals(1, ContentResolver.getIsSyncable(account, authority))
-
-            // Check default sync interval was set for
-            // [AccountSettings.KEY_SYNC_INTERVAL_ADDRESSBOOKS],
-            // [AccountSettings.KEY_SYNC_INTERVAL_CALENDARS]
-            assertEquals(
-                settingsManager.getLong(Settings.DEFAULT_SYNC_INTERVAL),
-                AccountSettings(targetContext, account).getSyncInterval(authority)
-            )
-        }
-    }
-
-    @Test
-    @RequiresApi(28)        // for mockkObject
-    fun testModel_CreateAccount_configuresCalendarsWithTasks() {
-        for (provider in listOf(
-            TaskProvider.ProviderName.JtxBoard,
-            TaskProvider.ProviderName.OpenTasks,
-            TaskProvider.ProviderName.TasksOrg
-        )) {
-            val accountName = "testAccount-$provider"
-            val emptyServiceInfo = DavResourceFinder.Configuration.ServiceInfo()
-            val config = DavResourceFinder.Configuration(emptyServiceInfo, emptyServiceInfo, false, "")
-
-            // Mock TaskUtils currentProvider method, pretending that one of the task apps is installed :)
-            mockkObject(TaskUtils)
-            every { TaskUtils.currentProvider(targetContext) } returns provider
-            assertEquals(provider, TaskUtils.currentProvider(targetContext))
-
-            // Create account -> should also set tasks sync interval in settings
-            val accountCreated =
-                AccountDetailsFragment.Model(targetContext, db, settingsManager)
-                    .createAccount(accountName, fakeCredentials, config, GroupMethod.GROUP_VCARDS)
-            assertTrue(accountCreated.getOrAwaitValue(5))
-
-            // Get the created account
-            val account = AccountManager.get(targetContext)
-                .getAccountsByType(targetContext.getString(R.string.account_type))
-                .first { account -> account.name == accountName }
-
-            // Calendar: Check isSyncable and default interval are set correctly
-            assertEquals(1, ContentResolver.getIsSyncable(account, CalendarContract.AUTHORITY))
-            assertEquals(
-                settingsManager.getLong(Settings.DEFAULT_SYNC_INTERVAL),
-                AccountSettings(targetContext, account).getSyncInterval(CalendarContract.AUTHORITY)
-            )
-
-            // Tasks: Check isSyncable and default sync interval were set
-            assertEquals(1, ContentResolver.getIsSyncable(account, provider.authority))
-            assertEquals(
-                settingsManager.getLong(Settings.DEFAULT_SYNC_INTERVAL),
-                AccountSettings(targetContext, account).getSyncInterval(provider.authority)
-            )
-        }
-    }
-
-    @Test
-    @RequiresApi(28)
-    fun testModel_CreateAccount_configuresCalendarsWithoutTasks() {
-        try {
-            val accountName = "testAccount"
-            val emptyServiceInfo = DavResourceFinder.Configuration.ServiceInfo()
-            val config = DavResourceFinder.Configuration(emptyServiceInfo, emptyServiceInfo, false, "")
-
-            // Mock TaskUtils currentProvider method, pretending that no task app is installed
-            mockkObject(TaskUtils)
-            every { TaskUtils.currentProvider(targetContext) } returns null
-            assertEquals(null, TaskUtils.currentProvider(targetContext))
-
-            // Mock static ContentResolver calls
-            // TODO: Should not be needed, see below
-            mockkStatic(ContentResolver::class)
-            every { ContentResolver.setIsSyncable(any(), any(), any()) } returns Unit
-            every { ContentResolver.getIsSyncable(any(), any()) } returns 1
-
-            // Create account will try to start an initial collection refresh, which we don't need, so we mockk it
-            mockkObject(RefreshCollectionsWorker.Companion)
-            every { RefreshCollectionsWorker.refreshCollections(any(), any()) } returns ""
-
-            // Create account -> should also set tasks sync interval in settings
-            val accountCreated = AccountDetailsFragment.Model(targetContext, db, settingsManager)
-                .createAccount(accountName, fakeCredentials, config, GroupMethod.GROUP_VCARDS)
-            assertTrue(accountCreated.getOrAwaitValue(5))
-
-            // Get the created account
-            val account = AccountManager.get(targetContext)
-                .getAccountsByType(targetContext.getString(R.string.account_type))
-                .first { account -> account.name == accountName }
-            val accountSettings = AccountSettings(targetContext, account)
-
-            // Calendar: Check automatic sync is enabled and default interval are set correctly
-            assertEquals(1, ContentResolver.getIsSyncable(account, CalendarContract.AUTHORITY))
-            assertEquals(
-                settingsManager.getLong(Settings.DEFAULT_SYNC_INTERVAL),
-                accountSettings.getSyncInterval(CalendarContract.AUTHORITY)
-            )
-
-            // Tasks: Check isSyncable state is unknown (=-1) and sync interval is "unset" (=null)
-            for (authority in listOf(
-                TaskProvider.ProviderName.JtxBoard.authority,
-                TaskProvider.ProviderName.OpenTasks.authority,
-                TaskProvider.ProviderName.TasksOrg.authority
-            )) {
-                // Until below is fixed, just verify the method for enabling sync did not get called
-                verify(exactly = 0) { ContentResolver.setIsSyncable(account, authority, 1) }
-
-                // TODO: Flaky, returns 1, although it should not. It only returns -1 if the test is run
-                //  alone, on a blank emulator and if it's the first test run.
-                //  This seems to have to do with the previous calls to ContentResolver by other tests.
-                //  Finding a a way of resetting the ContentResolver before each test is run should
-                //  solve the issue.
-                //assertEquals(-1, ContentResolver.getIsSyncable(account, authority))
-                //assertNull(accountSettings.getSyncInterval(authority)) // Depends on above
-            }
-        } catch (e: InterruptedException) {
-            // The sync adapter framework will start a sync, which can get interrupted. We don't care
-            // about being interrupted. If it happens the test is not too important.
-        }
-    }
-
-}*/

app/src/androidTest/kotlin/at/bitfire/davdroid/ui/webdav/AddWebdavMountActivityTest.kt

@@ -1,76 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.ui.webdav
-
-import android.security.NetworkSecurityPolicy
-import androidx.test.core.app.ApplicationProvider
-import at.bitfire.davdroid.db.AppDatabase
-import at.bitfire.davdroid.db.WebDavMount
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import io.mockk.spyk
-import okhttp3.mockwebserver.MockResponse
-import okhttp3.mockwebserver.MockWebServer
-import org.junit.Assert.assertFalse
-import org.junit.Assert.assertTrue
-import org.junit.Assume
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-import javax.inject.Inject
-
-@HiltAndroidTest
-class AddWebdavMountActivityTest {
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    @Inject
-    lateinit var db: AppDatabase
-
-    @Before
-    fun setUp() {
-        hiltRule.inject()
-
-        model = spyk(AddWebdavMountActivity.Model(ApplicationProvider.getApplicationContext(), db))
-
-        Assume.assumeTrue(NetworkSecurityPolicy.getInstance().isCleartextTrafficPermitted)
-    }
-
-
-    lateinit var model: AddWebdavMountActivity.Model
-    val web = MockWebServer()
-
-    @Test
-    fun testHasWebDav_NoDavHeader() {
-        web.enqueue(MockResponse().setResponseCode(200))
-        assertFalse(model.hasWebDav(WebDavMount(name = "Test", url = web.url("/")), null))
-    }
-
-    @Test
-    fun testHasWebDav_DavClass_1() {
-        web.enqueue(MockResponse()
-            .setResponseCode(200)
-            .addHeader("DAV", "1"))
-        assertTrue(model.hasWebDav(WebDavMount(name = "Test", url = web.url("/")), null))
-    }
-
-    @Test
-    fun testHasWebDav_DavClass_1and2() {
-        web.enqueue(MockResponse()
-            .setResponseCode(200)
-            .addHeader("DAV", "1,2"))
-        assertTrue(model.hasWebDav(WebDavMount(name = "Test", url = web.url("/")), null))
-    }
-
-    @Test
-    fun testHasWebDav_DavClass_2() {
-        web.enqueue(MockResponse()
-            .setResponseCode(200)
-            .addHeader("DAV", "2"))
-        assertTrue(model.hasWebDav(WebDavMount(name = "Test", url = web.url("/")), null))
-    }
-
-}

app/src/androidTest/kotlin/at/bitfire/davdroid/webdav/CredentialsStoreTest.kt

@@ -1,26 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.webdav
-
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.davdroid.db.Credentials
-import org.junit.Assert.assertEquals
-import org.junit.Assert.assertNull
-import org.junit.Test
-
-class CredentialsStoreTest {
-
-    private val store = CredentialsStore(InstrumentationRegistry.getInstrumentation().targetContext)
-
-    @Test
-    fun testSetGetDelete() {
-        store.setCredentials(0, Credentials(userName = "myname", password = "12345"))
-        assertEquals(Credentials(userName = "myname", password = "12345"), store.getCredentials(0))
-
-        store.setCredentials(0, null)
-        assertNull(store.getCredentials(0))
-    }
-
-}

app/src/androidTest/res/values/strings.xml

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (c) Ricki Hirner (bitfire web engineering).
-  ~ All rights reserved. This program and the accompanying materials
-  ~ are made available under the terms of the GNU Public License v3.0
-  ~ which accompanies this distribution, and is available at
-  ~ http://www.gnu.org/licenses/gpl.html
-  -->
-
-<resources>
-
-    <string name="app_name">Davx5Test</string>
-
-</resources>

app/src/androidTest/res/xml/test_account_authenticator.xml

@@ -1,3 +0,0 @@
-<account-authenticator xmlns:android="http://schemas.android.com/apk/res/android"
-    android:accountType="at.bitfire.davdroid.SyncManagerTest"
-    android:label="Test Account" />

app/src/androidTestOse/kotlin/at/bitfire/davdroid/OkhttpClientTest.kt

@@ -1,44 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid
-
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.davdroid.network.HttpClient
-import at.bitfire.davdroid.settings.SettingsManager
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import okhttp3.Request
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-import javax.inject.Inject
-
-@HiltAndroidTest
-class OkhttpClientTest {
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    @Inject
-    lateinit var settingsManager: SettingsManager
-
-    @Before
-    fun inject() {
-        hiltRule.inject()
-    }
-
-
-    @Test
-    fun testIcloudWithSettings() {
-        val client = HttpClient.Builder(InstrumentationRegistry.getInstrumentation().targetContext)
-                .build()
-        client.okHttpClient.newCall(Request.Builder()
-                .get()
-                .url("https://icloud.com")
-                .build())
-                .execute()
-    }
-
-}

app/src/androidTestOse/kotlin/at/bitfire/davdroid/syncadapter/LocalTestResource.kt

@@ -1,39 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.syncadapter
-
-import at.bitfire.davdroid.resource.LocalResource
-
-class LocalTestResource: LocalResource<Any> {
-
-    override val id: Long? = null
-    override var fileName: String? = null
-    override var eTag: String? = null
-    override var scheduleTag: String? = null
-    override var flags: Int = 0
-
-    var deleted = false
-    var dirty = false
-
-    override fun prepareForUpload() = "generated-file.txt"
-
-    override fun clearDirty(fileName: String?, eTag: String?, scheduleTag: String?) {
-        dirty = false
-        if (fileName != null)
-            this.fileName = fileName
-        this.eTag = eTag
-        this.scheduleTag = scheduleTag
-    }
-
-    override fun updateFlags(flags: Int) {
-        this.flags = flags
-    }
-
-    override fun add() = throw NotImplementedError()
-    override fun update(data: Any) = throw NotImplementedError()
-    override fun delete() = throw NotImplementedError()
-    override fun resetDeleted() = throw NotImplementedError()
-
-}

app/src/androidTestOse/kotlin/at/bitfire/davdroid/syncadapter/PeriodicSyncWorkerTest.kt

@@ -1,147 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.syncadapter
-
-import android.accounts.Account
-import android.accounts.AccountManager
-import android.content.ContentResolver
-import android.provider.CalendarContract
-import android.provider.ContactsContract
-import android.util.Log
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.work.Configuration
-import androidx.work.testing.TestWorkerBuilder
-import androidx.work.testing.WorkManagerTestInitHelper
-import androidx.work.workDataOf
-import at.bitfire.davdroid.R
-import at.bitfire.davdroid.TestUtils
-import at.bitfire.davdroid.TestUtils.workScheduledOrRunning
-import at.bitfire.davdroid.db.Credentials
-import at.bitfire.davdroid.settings.AccountSettings
-import at.bitfire.davdroid.ui.NotificationUtils
-import at.bitfire.ical4android.TaskProvider
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import org.junit.AfterClass
-import org.junit.Assert.assertFalse
-import org.junit.Assert.assertTrue
-import org.junit.Before
-import org.junit.BeforeClass
-import org.junit.Rule
-import org.junit.Test
-import java.util.concurrent.Executors
-
-@HiltAndroidTest
-class PeriodicSyncWorkerTest {
-
-    companion object {
-
-        val context = InstrumentationRegistry.getInstrumentation().targetContext
-
-        private val accountManager = AccountManager.get(context)
-        private val account = Account("Test Account", context.getString(R.string.account_type))
-        private val fakeCredentials = Credentials("test", "test")
-
-        @BeforeClass
-        @JvmStatic
-        fun setUp() {
-            // The test application is an instance of HiltTestApplication, which doesn't initialize notification channels.
-            // However, we need notification channels for the ongoing work notifications.
-            NotificationUtils.createChannels(context)
-
-            // Initialize WorkManager for instrumentation tests.
-            val config = Configuration.Builder()
-                .setMinimumLoggingLevel(Log.DEBUG)
-                .build()
-            WorkManagerTestInitHelper.initializeTestWorkManager(context, config)
-
-            assertTrue(AccountUtils.createAccount(context, account, AccountSettings.initialUserData(fakeCredentials)))
-            ContentResolver.setIsSyncable(account, CalendarContract.AUTHORITY, 1)
-            ContentResolver.setIsSyncable(account, ContactsContract.AUTHORITY, 1)
-        }
-
-        @AfterClass
-        @JvmStatic
-        fun removeAccount() {
-            accountManager.removeAccountExplicitly(account)
-        }
-
-    }
-
-    private val executor = Executors.newSingleThreadExecutor()
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    @Before
-    fun inject() {
-        hiltRule.inject()
-    }
-
-
-    @Test
-    fun enable_enqueuesPeriodicWorker() {
-        PeriodicSyncWorker.enable(context, account, CalendarContract.AUTHORITY, 60, false)
-        val workerName = PeriodicSyncWorker.workerName(account, CalendarContract.AUTHORITY)
-        assertTrue(workScheduledOrRunning(context, workerName))
-    }
-
-    @Test
-    fun disable_removesPeriodicWorker() {
-        PeriodicSyncWorker.enable(context, account, CalendarContract.AUTHORITY, 60, false)
-        PeriodicSyncWorker.disable(context, account, CalendarContract.AUTHORITY)
-        val workerName = PeriodicSyncWorker.workerName(account, CalendarContract.AUTHORITY)
-        assertFalse(workScheduledOrRunning(context, workerName))
-    }
-
-    @Test
-    fun doWork_cancelsItselfOnInvalidAccount() {
-        val invalidAccount = Account("invalid", context.getString(R.string.account_type))
-        val authority = CalendarContract.AUTHORITY
-
-        // Enable the PeriodicSyncWorker
-        PeriodicSyncWorker.enable(context, invalidAccount, authority, 15*60, false)
-        assertTrue(workScheduledOrRunning(context, PeriodicSyncWorker.workerName(account, authority)))
-
-        // Run PeriodicSyncWorker as TestWorker
-        val inputData = workDataOf(
-            PeriodicSyncWorker.ARG_AUTHORITY to authority,
-            PeriodicSyncWorker.ARG_ACCOUNT_NAME to invalidAccount.name,
-            PeriodicSyncWorker.ARG_ACCOUNT_TYPE to invalidAccount.type
-        )
-        val result = TestWorkerBuilder<PeriodicSyncWorker>(context, executor, inputData).build().doWork()
-
-        // Verify that the PeriodicSyncWorker cancelled itself
-        assertTrue(result is androidx.work.ListenableWorker.Result.Failure)
-        assertFalse(workScheduledOrRunning(context, PeriodicSyncWorker.workerName(invalidAccount, authority)))
-    }
-
-    @Test
-    fun doWork_immediatelyEnqueuesSyncWorkerForGivenAuthority() {
-        val authorities = listOf(
-            context.getString(R.string.address_books_authority),
-            CalendarContract.AUTHORITY,
-            ContactsContract.AUTHORITY,
-            TaskProvider.ProviderName.JtxBoard.authority,
-            TaskProvider.ProviderName.OpenTasks.authority,
-            TaskProvider.ProviderName.TasksOrg.authority
-        )
-        for (authority in authorities) {
-            val inputData = workDataOf(
-                PeriodicSyncWorker.ARG_AUTHORITY to authority,
-                PeriodicSyncWorker.ARG_ACCOUNT_NAME to account.name,
-                PeriodicSyncWorker.ARG_ACCOUNT_TYPE to account.type
-            )
-            // Run PeriodicSyncWorker as TestWorker
-            TestWorkerBuilder<PeriodicSyncWorker>(context, executor, inputData).build().doWork()
-
-            // Check the PeriodicSyncWorker enqueued the right SyncWorker
-            assertTrue(TestUtils.workScheduledOrRunningOrSuccessful(context,
-                SyncWorker.workerName(account, authority)
-            ))
-        }
-    }
-
-}

app/src/androidTestOse/kotlin/at/bitfire/davdroid/syncadapter/SyncWorkerTest.kt

@@ -1,124 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.syncadapter
-
-import android.accounts.Account
-import android.accounts.AccountManager
-import android.content.ContentResolver
-import android.provider.CalendarContract
-import android.provider.ContactsContract
-import android.util.Log
-import androidx.test.platform.app.InstrumentationRegistry
-import androidx.work.Configuration
-import androidx.work.testing.WorkManagerTestInitHelper
-import at.bitfire.davdroid.R
-import at.bitfire.davdroid.TestUtils.workScheduledOrRunningOrSuccessful
-import at.bitfire.davdroid.db.Credentials
-import at.bitfire.davdroid.network.ConnectionUtils
-import at.bitfire.davdroid.settings.AccountSettings
-import at.bitfire.davdroid.ui.NotificationUtils
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import io.mockk.every
-import io.mockk.mockk
-import io.mockk.mockkObject
-import org.junit.After
-import org.junit.Assert.assertFalse
-import org.junit.Assert.assertTrue
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-
-@HiltAndroidTest
-class SyncWorkerTest {
-
-    val context = InstrumentationRegistry.getInstrumentation().targetContext
-
-    private val accountManager = AccountManager.get(context)
-    private val account = Account("Test Account", context.getString(R.string.account_type))
-    private val fakeCredentials = Credentials("test", "test")
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    @Before
-    fun inject() = hiltRule.inject()
-
-
-    @Before
-    fun setUp() {
-        assertTrue(AccountUtils.createAccount(context, account, AccountSettings.initialUserData(fakeCredentials)))
-        ContentResolver.setIsSyncable(account, CalendarContract.AUTHORITY, 1)
-        ContentResolver.setIsSyncable(account, ContactsContract.AUTHORITY, 0)
-
-        // The test application is an instance of HiltTestApplication, which doesn't initialize notification channels.
-        // However, we need notification channels for the ongoing work notifications.
-        NotificationUtils.createChannels(context)
-
-        // Initialize WorkManager for instrumentation tests.
-        val config = Configuration.Builder()
-            .setMinimumLoggingLevel(Log.DEBUG)
-            .build()
-        WorkManagerTestInitHelper.initializeTestWorkManager(context, config)
-    }
-
-    @After
-    fun removeAccount() {
-        accountManager.removeAccountExplicitly(account)
-    }
-
-
-    @Test
-    fun testEnqueue_enqueuesWorker() {
-        SyncWorker.enqueue(context, account, CalendarContract.AUTHORITY, true)
-        val workerName = SyncWorker.workerName(account, CalendarContract.AUTHORITY)
-        assertTrue(workScheduledOrRunningOrSuccessful(context, workerName))
-    }
-
-    @Test
-    fun testWifiConditionsMet_withoutWifi() {
-        val accountSettings = mockk<AccountSettings>()
-        every { accountSettings.getSyncWifiOnly() } returns false
-        assertTrue(SyncWorker.wifiConditionsMet(context, accountSettings))
-    }
-    
-    @Test
-    fun testWifiConditionsMet_anyWifi_wifiEnabled() {
-        val accountSettings = AccountSettings(context, account)
-        accountSettings.setSyncWiFiOnly(true)
-
-        mockkObject(ConnectionUtils)
-        every { ConnectionUtils.wifiAvailable(any()) } returns true
-        mockkObject(SyncWorker.Companion)
-        every { SyncWorker.Companion.correctWifiSsid(any(), any()) } returns true
-
-        assertTrue(SyncWorker.wifiConditionsMet(context, accountSettings))
-    }
-
-    @Test
-    fun testWifiConditionsMet_anyWifi_wifiDisabled() {
-        val accountSettings = AccountSettings(context, account)
-        accountSettings.setSyncWiFiOnly(true)
-
-        mockkObject(ConnectionUtils)
-        every { ConnectionUtils.wifiAvailable(any()) } returns false
-        mockkObject(SyncWorker.Companion)
-        every { SyncWorker.Companion.correctWifiSsid(any(), any()) } returns true
-
-        assertFalse(SyncWorker.wifiConditionsMet(context, accountSettings))
-    }
-
-
-    @Test
-    fun testWifiConditionsMet_correctWifiSsid() {
-        // TODO: Write test
-    }
-
-    @Test
-    fun testWifiConditionsMet_wrongWifiSsid() {
-        // TODO: Write test
-    }
-
-}

app/src/androidTestOse/kotlin/at/bitfire/davdroid/syncadapter/SyncerTest.kt

@@ -1,73 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.syncadapter
-
-import android.accounts.Account
-import android.content.ContentProviderClient
-import android.content.Context
-import android.content.SyncResult
-import androidx.test.platform.app.InstrumentationRegistry
-import at.bitfire.davdroid.network.HttpClient
-import at.bitfire.davdroid.R
-import dagger.hilt.android.testing.HiltAndroidRule
-import dagger.hilt.android.testing.HiltAndroidTest
-import org.junit.Assert.assertEquals
-import org.junit.Before
-import org.junit.Rule
-import org.junit.Test
-import java.util.concurrent.atomic.AtomicInteger
-
-@HiltAndroidTest
-class SyncerTest {
-
-    @get:Rule
-    val hiltRule = HiltAndroidRule(this)
-
-    val context = InstrumentationRegistry.getInstrumentation().targetContext
-
-    /** use our WebDAV provider as a mock provider because it's our own and we don't need any permissions for it */
-    val mockAuthority = context.getString(R.string.webdav_authority)
-    val mockProvider = context.contentResolver!!.acquireContentProviderClient(mockAuthority)!!
-
-    val account = Account(javaClass.canonicalName, context.getString(R.string.account_type))
-
-
-    @Before
-    fun setUp() {
-        hiltRule.inject()
-    }
-
-    @Test
-    fun testOnPerformSync_runsSyncAndSetsClassLoader() {
-        val syncer = TestSyncer(context)
-        syncer.onPerformSync(account, arrayOf(), mockAuthority, mockProvider, SyncResult())
-
-        // check whether onPerformSync() actually calls sync()
-        assertEquals(1, syncer.syncCalled.get())
-
-        // check whether contextClassLoader is set
-        assertEquals(context.classLoader, Thread.currentThread().contextClassLoader)
-    }
-
-
-    class TestSyncer(context: Context) : Syncer(context) {
-
-        val syncCalled = AtomicInteger()
-
-        override fun sync(
-            account: Account,
-            extras: Array<String>,
-            authority: String,
-            httpClient: Lazy<HttpClient>,
-            provider: ContentProviderClient,
-            syncResult: SyncResult
-        ) {
-            Thread.sleep(1000)
-            syncCalled.incrementAndGet()
-        }
-
-    }
-
-}

app/src/main/assets/known-base-urls.txt

@@ -1,39 +0,0 @@
-carddav.a1.net
-aol.com
-calendar.dingtalk.com/dav/
-cloud.disroot.org
-dav.edis.at
-dav.fruux.com
-caldav.gmx.com
-caldav.gmx.co.uk
-caldav.gmx.de
-caldav.gmx.es
-caldav.gmx.fr
-caldav.gmx.net
-carddav.gmx.com
-carddav.gmx.co.uk
-carddav.gmx.de
-carddav.gmx.es
-carddav.gmx.fr
-carddav.gmx.net
-framagenda.org/remote.php/dav/
-icloud.com
-cloud.liberta.vip
-office.luckycloud.de
-calendar.mail.ru
-dav.mailbox.org
-mailfence.com
-caldav.mailo.com
-carddav.mailo.com
-posteo.de:8443
-purelymail.com
-dav.runbox.com
-live.teambox.eu
-spica.t-online.de
-caldav.calendar.yahoo.com
-yandex.ru
-webmail.your-server.de/rpc.php/
-calendar.zoho.com
-calendar.zoho.eu
-contacts.zoho.com
-contacts.zoho.eu

app/src/main/assets/translators.json

@@ -1 +0,0 @@
-{"ar_SA":["abdunnasir"],"bg":["dpa_transifex"],"ca":["Kintu","jordibrus","zagur"],"cs":["pavelb","svetlemodry","tomas.odehnal"],"da":["Tntdruid_","knutztar","mjjzf","twikedk"],"de":["Atalanttore","TheName","Wyrrrd","YvanM","amandablue","anestiskaci","corppneq","crit12","hammaschlach","maxkl","nicolas_git","owncube"],"el":["KristinaQejvanaj","anestiskaci","diamond_gr"],"es":["Ark74","Elhea","GranPC","aluaces","jcvielma","plaguna","polkhas","xphnx"],"eu":["Osoitz","Thadah","cockeredradiation"],"fa":["Numb","ahangarha","amiraliakbari","joojoojoo","maryambehzi","mtashackori","taranehsaei"],"fr":["AlainR","Amadeen","Floflr","JorisBodin","Llorc","LoiX07","Novick","Poussinou","Thecross","YvanM","alkino2","boutil","callmemagnus","chrcha","grenatrad","jokx","mathieugfortin","paullbn","vincen","ÉricB."],"fr_FR":["Llorc","Poussinou","chrcha"],"gl":["aluaces","pikamoku"],"hu":["Roshek","infeeeee","jtg"],"it":["Damtux","FranzMari","ed0","malaerba","noccio","nwandy","rickyroo","technezio"],"it_IT":["malaerba"],"ja":["Naofumi","yanorei32"],"nb_NO":["elonus"],"nl":["XtremeNova","davtemp","dehart","erikhubers","frankyboy1963"],"pl":["TORminator","TheName","Valdnet","gsz","mg6","oskarjakiela"],"pt":["amalvarenga","wanderlei.huttel"],"pt_BR":["wanderlei.huttel"],"ru":["aigoshin","anm","ashed","astalavister","nick.savin","vaddd"],"sk_SK":["brango67","tiborepcek"],"sl_SI":["MrLaaky","uroszor"],"sr":["daimonion"],"sv":["Mikaelb","campbelldavid"],"szl":["chlodny"],"tr_TR":["ooguz","pultars"],"uk":["androsua","olexn","twixi007"],"uk_UA":["astalavister"],"zh_CN":["anolir","jxj2zzz79pfp9bpo","linuxbckp","mofitt2016","oksjd","phy","spice2wolf"],"zh_TW":["linuxbckp","mofitt2016","phy","waiabsfabuloushk"]}

app/src/main/kotlin/at/bitfire/davdroid/App.kt

@@ -1,125 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid
-
-import android.app.Application
-import android.content.Context
-import android.net.Uri
-import android.os.StrictMode
-import androidx.appcompat.content.res.AppCompatResources
-import androidx.core.graphics.drawable.toBitmap
-import androidx.hilt.work.HiltWorkerFactory
-import androidx.work.Configuration
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.syncadapter.AccountsUpdatedListener
-import at.bitfire.davdroid.syncadapter.SyncUtils
-import at.bitfire.davdroid.ui.DebugInfoActivity
-import at.bitfire.davdroid.ui.NotificationUtils
-import at.bitfire.davdroid.ui.UiUtils
-import dagger.hilt.android.HiltAndroidApp
-import java.util.logging.Level
-import javax.inject.Inject
-import kotlin.concurrent.thread
-import kotlin.system.exitProcess
-
-@HiltAndroidApp
-class App: Application(), Thread.UncaughtExceptionHandler, Configuration.Provider {
-
-    companion object {
-
-        const val HOMEPAGE_PRIVACY = "privacy"
-
-        fun getLauncherBitmap(context: Context) =
-                AppCompatResources.getDrawable(context, R.mipmap.ic_launcher)?.toBitmap()
-
-        /**
-         * Gets the DAVx5 Web site URL that should be used to open in the user's browser.
-         * Package ID, version number and calling context name will be appended as arguments.
-         *
-         * @param context   context name to use
-         * @param page      optional page segment to append (for instance: [HOMEPAGE_PRIVACY]])
-         *
-         * @return the Uri for the browser
-         */
-        fun homepageUrl(context: Context, page: String? = null): Uri {
-            val builder = Uri.parse(context.getString(R.string.homepage_url)).buildUpon()
-
-            if (page != null)
-                builder.appendPath(page)
-
-            return builder
-                .appendQueryParameter("pk_campaign", BuildConfig.APPLICATION_ID)
-                .appendQueryParameter("pk_kwd", context::class.java.simpleName)
-                .appendQueryParameter("app-version", BuildConfig.VERSION_NAME)
-                .build()
-        }
-
-    }
-
-    @Inject lateinit var accountsUpdatedListener: AccountsUpdatedListener
-    @Inject lateinit var storageLowReceiver: StorageLowReceiver
-
-    @Inject lateinit var workerFactory: HiltWorkerFactory
-
-    override val workManagerConfiguration: Configuration
-        get() = Configuration.Builder()
-            .setWorkerFactory(workerFactory)
-            .build()
-
-    override fun onCreate() {
-        super.onCreate()
-        Logger.initialize(this)
-
-        if (BuildConfig.DEBUG)
-            // debug builds
-            StrictMode.setVmPolicy(StrictMode.VmPolicy.Builder()
-                    .detectActivityLeaks()
-                    .detectFileUriExposure()
-                    .detectLeakedClosableObjects()
-                    .detectLeakedRegistrationObjects()
-                    .detectLeakedSqlLiteObjects()
-                    .penaltyLog()
-                    .build())
-        else // if (BuildConfig.FLAVOR == FLAVOR_STANDARD)
-            // handle uncaught exceptions in non-debug standard flavor
-            Thread.setDefaultUncaughtExceptionHandler(this)
-
-        NotificationUtils.createChannels(this)
-
-        // set light/dark mode
-        UiUtils.setTheme(this)   // when this is called in the asynchronous thread below, it recreates
-                                 // some current activity and causes an IllegalStateException in rare cases
-
-        // don't block UI for some background checks
-        thread {
-            // watch for account changes/deletions
-            accountsUpdatedListener.listen()
-
-            // watch storage because low storage means synchronization is stopped
-            storageLowReceiver.listen()
-
-            // watch installed/removed apps
-            TasksWatcher.watch(this)
-            // check whether a tasks app is currently installed
-            SyncUtils.updateTaskSync(this)
-
-            // create/update app shortcuts
-            UiUtils.updateShortcuts(this)
-        }
-    }
-
-    override fun uncaughtException(t: Thread, e: Throwable) {
-        Logger.log.log(Level.SEVERE, "Unhandled exception!", e)
-
-        val intent = DebugInfoActivity.IntentBuilder(this)
-            .withCause(e)
-            .newTask()
-            .build()
-        startActivity(intent)
-
-        exitProcess(1)
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/Constants.kt

@@ -1,27 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-package at.bitfire.davdroid
-
-object Constants {
-
-    const val DAVDROID_GREEN_RGBA = 0xFF8bc34a.toInt()
-
-    // gplay billing
-    const val BILLINGCLIENT_CONNECTION_MAX_RETRIES = 4
-
-    /**
-     * Context label for [org.apache.commons.lang3.exception.ContextedException].
-     * Context value is the [at.bitfire.davdroid.resource.LocalResource]
-     * which is related to the exception cause.
-     */
-    const val EXCEPTION_CONTEXT_LOCAL_RESOURCE = "localResource"
-
-    /**
-     * Context label for [org.apache.commons.lang3.exception.ContextedException].
-     * Context value is the [okhttp3.HttpUrl] of the remote resource
-     * which is related to the exception cause.
-     */
-    const val EXCEPTION_CONTEXT_REMOTE_RESOURCE = "remoteResource"
-
-}

app/src/main/kotlin/at/bitfire/davdroid/InvalidAccountException.kt

@@ -1,9 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid
-
-import android.accounts.Account
-
-class InvalidAccountException(account: Account): Exception("Invalid account: $account")

app/src/main/kotlin/at/bitfire/davdroid/PackageChangedReceiver.kt

@@ -1,29 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid
-
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
-
-abstract class PackageChangedReceiver(
-        val context: Context
-): BroadcastReceiver(), AutoCloseable {
-
-    init {
-        val filter = IntentFilter(Intent.ACTION_PACKAGE_ADDED).apply {
-            addAction(Intent.ACTION_PACKAGE_CHANGED)
-            addAction(Intent.ACTION_PACKAGE_REMOVED)
-            addDataScheme("package")
-        }
-        context.registerReceiver(this, filter)
-    }
-
-    override fun close() {
-        context.unregisterReceiver(this)
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/StorageLowReceiver.kt

@@ -1,68 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid
-
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
-import androidx.lifecycle.MutableLiveData
-import at.bitfire.davdroid.log.Logger
-import dagger.Module
-import dagger.Provides
-import dagger.hilt.InstallIn
-import dagger.hilt.android.qualifiers.ApplicationContext
-import dagger.hilt.components.SingletonComponent
-import javax.inject.Singleton
-
-class StorageLowReceiver private constructor(
-    val context: Context
-): BroadcastReceiver(), AutoCloseable {
-
-    @Module
-    @InstallIn(SingletonComponent::class)
-    object StorageLowReceiverModule {
-        @Provides
-        @Singleton
-        fun storageLowReceiver(@ApplicationContext context: Context) = StorageLowReceiver(context)
-    }
-
-
-    val storageLow = MutableLiveData(false)
-
-    fun listen() {
-        Logger.log.fine("Listening for device storage low/OK broadcasts")
-        val filter = IntentFilter().apply {
-            addAction(Intent.ACTION_DEVICE_STORAGE_LOW)
-            addAction(Intent.ACTION_DEVICE_STORAGE_OK)
-        }
-        context.registerReceiver(this, filter)
-    }
-
-    override fun close() {
-        context.unregisterReceiver(this)
-    }
-
-
-    override fun onReceive(context: Context, intent: Intent) {
-        when (intent.action) {
-            Intent.ACTION_DEVICE_STORAGE_LOW -> onStorageLow()
-            Intent.ACTION_DEVICE_STORAGE_OK -> onStorageOk()
-        }
-    }
-
-    fun onStorageLow() {
-        Logger.log.warning("Low storage, sync will not be started by Android!")
-
-        storageLow.postValue(true)
-    }
-
-    fun onStorageOk() {
-        Logger.log.info("Storage OK again")
-
-        storageLow.postValue(false)
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/TasksWatcher.kt

@@ -1,31 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid
-
-import android.content.Context
-import android.content.Intent
-import at.bitfire.davdroid.syncadapter.SyncUtils.updateTaskSync
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-
-class TasksWatcher protected constructor(
-    context: Context
-): PackageChangedReceiver(context) {
-
-    companion object {
-
-        fun watch(context: Context) = TasksWatcher(context)
-
-    }
-
-
-    override fun onReceive(context: Context, intent: Intent) {
-        CoroutineScope(Dispatchers.Default).launch {
-            updateTaskSync(context)
-        }
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/db/AppDatabase.kt

@@ -1,298 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.db
-
-import android.accounts.AccountManager
-import android.app.PendingIntent
-import android.content.Context
-import android.content.Intent
-import android.database.sqlite.SQLiteQueryBuilder
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationManagerCompat
-import androidx.core.database.getStringOrNull
-import androidx.room.*
-import androidx.room.migration.AutoMigrationSpec
-import androidx.room.migration.Migration
-import androidx.sqlite.db.SupportSQLiteDatabase
-import at.bitfire.davdroid.R
-import at.bitfire.davdroid.TextTable
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.servicedetection.RefreshCollectionsWorker
-import at.bitfire.davdroid.ui.AccountsActivity
-import at.bitfire.davdroid.ui.NotificationUtils
-import at.bitfire.davdroid.ui.NotificationUtils.notifyIfPossible
-import dagger.Module
-import dagger.Provides
-import dagger.hilt.InstallIn
-import dagger.hilt.android.qualifiers.ApplicationContext
-import dagger.hilt.components.SingletonComponent
-import java.io.Writer
-import javax.inject.Singleton
-
-@Suppress("ClassName")
-@Database(entities = [
-    Service::class,
-    HomeSet::class,
-    Collection::class,
-    Principal::class,
-    SyncStats::class,
-    WebDavDocument::class,
-    WebDavMount::class
-], exportSchema = true, version = 12, autoMigrations = [
-    AutoMigration(from = 9, to = 10),
-    AutoMigration(from = 10, to = 11),
-    AutoMigration(from = 11, to = 12, spec = AppDatabase.AutoMigration11_12::class)
-])
-@TypeConverters(Converters::class)
-abstract class AppDatabase: RoomDatabase() {
-
-    @Module
-    @InstallIn(SingletonComponent::class)
-    object AppDatabaseModule {
-        @Provides
-        @Singleton
-        fun appDatabase(@ApplicationContext context: Context): AppDatabase =
-            Room.databaseBuilder(context.applicationContext, AppDatabase::class.java, "services.db")
-                .addMigrations(*migrations)
-                .addAutoMigrationSpec(AutoMigration11_12(context))
-                .fallbackToDestructiveMigration()   // as a last fallback, recreate database instead of crashing
-                .addCallback(object: Callback() {
-                    override fun onDestructiveMigration(db: SupportSQLiteDatabase) {
-                        val nm = NotificationManagerCompat.from(context)
-                        val launcherIntent = Intent(context, AccountsActivity::class.java)
-                        val notify = NotificationUtils.newBuilder(context, NotificationUtils.CHANNEL_GENERAL)
-                            .setSmallIcon(R.drawable.ic_warning_notify)
-                            .setContentTitle(context.getString(R.string.database_destructive_migration_title))
-                            .setContentText(context.getString(R.string.database_destructive_migration_text))
-                            .setCategory(NotificationCompat.CATEGORY_ERROR)
-                            .setContentIntent(PendingIntent.getActivity(context, 0, launcherIntent, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE))
-                            .setAutoCancel(true)
-                            .build()
-                        nm.notifyIfPossible(NotificationUtils.NOTIFY_DATABASE_CORRUPTED, notify)
-
-                        // remove all accounts because they're unfortunately useless without database
-                        val am = AccountManager.get(context)
-                        for (account in am.getAccountsByType(context.getString(R.string.account_type)))
-                            am.removeAccount(account, null, null)
-                    }
-                })
-                .build()
-    }
-
-    // auto migrations
-
-    @ProvidedAutoMigrationSpec
-    @DeleteColumn(tableName = "collection", columnName = "owner")
-    class AutoMigration11_12(val context: Context): AutoMigrationSpec {
-        override fun onPostMigrate(db: SupportSQLiteDatabase) {
-            Logger.log.info("Database update to v12, refreshing services to get display names of owners")
-            db.query("SELECT id FROM service", arrayOf()).use { cursor ->
-                while (cursor.moveToNext()) {
-                    val serviceId = cursor.getLong(0)
-                    RefreshCollectionsWorker.enqueue(context, serviceId)
-                }
-            }
-        }
-    }
-
-
-    companion object {
-
-        // manual migrations
-
-        val migrations: Array<Migration> = arrayOf(
-            object : Migration(8, 9) {
-                override fun migrate(db: SupportSQLiteDatabase) {
-                    db.execSQL("CREATE TABLE syncstats (" +
-                            "id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT," +
-                            "collectionId INTEGER NOT NULL REFERENCES collection(id) ON DELETE CASCADE," +
-                            "authority TEXT NOT NULL," +
-                            "lastSync INTEGER NOT NULL)")
-                    db.execSQL("CREATE UNIQUE INDEX index_syncstats_collectionId_authority ON syncstats(collectionId, authority)")
-
-                    db.execSQL("CREATE INDEX index_collection_url ON collection(url)")
-                }
-            },
-
-            object : Migration(7, 8) {
-                override fun migrate(db: SupportSQLiteDatabase) {
-                    db.execSQL("ALTER TABLE homeset ADD COLUMN personal INTEGER NOT NULL DEFAULT 1")
-                    db.execSQL("ALTER TABLE collection ADD COLUMN homeSetId INTEGER DEFAULT NULL REFERENCES homeset(id) ON DELETE SET NULL")
-                    db.execSQL("ALTER TABLE collection ADD COLUMN owner TEXT DEFAULT NULL")
-                    db.execSQL("CREATE INDEX index_collection_homeSetId_type ON collection(homeSetId, type)")
-                }
-            },
-
-            object : Migration(6, 7) {
-                override fun migrate(db: SupportSQLiteDatabase) {
-                    db.execSQL("ALTER TABLE homeset ADD COLUMN privBind INTEGER NOT NULL DEFAULT 1")
-                    db.execSQL("ALTER TABLE homeset ADD COLUMN displayName TEXT DEFAULT NULL")
-                }
-            },
-
-            object : Migration(5, 6) {
-                override fun migrate(db: SupportSQLiteDatabase) {
-                    val sql = arrayOf(
-                        // migrate "services" to "service": rename columns, make id NOT NULL
-                        "CREATE TABLE service(" +
-                                "id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT," +
-                                "accountName TEXT NOT NULL," +
-                                "type TEXT NOT NULL," +
-                                "principal TEXT DEFAULT NULL" +
-                                ")",
-                        "CREATE UNIQUE INDEX index_service_accountName_type ON service(accountName, type)",
-                        "INSERT INTO service(id, accountName, type, principal) SELECT _id, accountName, service, principal FROM services",
-                        "DROP TABLE services",
-
-                        // migrate "homesets" to "homeset": rename columns, make id NOT NULL
-                        "CREATE TABLE homeset(" +
-                                "id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT," +
-                                "serviceId INTEGER NOT NULL," +
-                                "url TEXT NOT NULL," +
-                                "FOREIGN KEY (serviceId) REFERENCES service(id) ON DELETE CASCADE" +
-                                ")",
-                        "CREATE UNIQUE INDEX index_homeset_serviceId_url ON homeset(serviceId, url)",
-                        "INSERT INTO homeset(id, serviceId, url) SELECT _id, serviceID, url FROM homesets",
-                        "DROP TABLE homesets",
-
-                        // migrate "collections" to "collection": rename columns, make id NOT NULL
-                        "CREATE TABLE collection(" +
-                                "id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT," +
-                                "serviceId INTEGER NOT NULL," +
-                                "type TEXT NOT NULL," +
-                                "url TEXT NOT NULL," +
-                                "privWriteContent INTEGER NOT NULL DEFAULT 1," +
-                                "privUnbind INTEGER NOT NULL DEFAULT 1," +
-                                "forceReadOnly INTEGER NOT NULL DEFAULT 0," +
-                                "displayName TEXT DEFAULT NULL," +
-                                "description TEXT DEFAULT NULL," +
-                                "color INTEGER DEFAULT NULL," +
-                                "timezone TEXT DEFAULT NULL," +
-                                "supportsVEVENT INTEGER DEFAULT NULL," +
-                                "supportsVTODO INTEGER DEFAULT NULL," +
-                                "supportsVJOURNAL INTEGER DEFAULT NULL," +
-                                "source TEXT DEFAULT NULL," +
-                                "sync INTEGER NOT NULL DEFAULT 0," +
-                                "FOREIGN KEY (serviceId) REFERENCES service(id) ON DELETE CASCADE" +
-                                ")",
-                        "CREATE INDEX index_collection_serviceId_type ON collection(serviceId,type)",
-                        "INSERT INTO collection(id, serviceId, type, url, privWriteContent, privUnbind, forceReadOnly, displayName, description, color, timezone, supportsVEVENT, supportsVTODO, source, sync) " +
-                                "SELECT _id, serviceID, type, url, privWriteContent, privUnbind, forceReadOnly, displayName, description, color, timezone, supportsVEVENT, supportsVTODO, source, sync FROM collections",
-                        "DROP TABLE collections"
-                    )
-                    sql.forEach { db.execSQL(it) }
-                }
-            },
-
-            object : Migration(4, 5) {
-                override fun migrate(db: SupportSQLiteDatabase) {
-                    db.execSQL("ALTER TABLE collections ADD COLUMN privWriteContent INTEGER DEFAULT 0 NOT NULL")
-                    db.execSQL("UPDATE collections SET privWriteContent=NOT readOnly")
-
-                    db.execSQL("ALTER TABLE collections ADD COLUMN privUnbind INTEGER DEFAULT 0 NOT NULL")
-                    db.execSQL("UPDATE collections SET privUnbind=NOT readOnly")
-
-                    // there's no DROP COLUMN in SQLite, so just keep the "readOnly" column
-                }
-            },
-
-            object : Migration(3, 4) {
-                override fun migrate(db: SupportSQLiteDatabase) {
-                    db.execSQL("ALTER TABLE collections ADD COLUMN forceReadOnly INTEGER DEFAULT 0 NOT NULL")
-                }
-            },
-
-            object : Migration(2, 3) {
-                override fun migrate(db: SupportSQLiteDatabase) {
-                    // We don't have access to the context in a Room migration now, so
-                    // we will just drop those settings from old DAVx5 versions.
-                    Logger.log.warning("Dropping settings distrustSystemCerts and overrideProxy*")
-
-                    /*val edit = PreferenceManager.getDefaultSharedPreferences(context).edit()
-                    try {
-                        db.query("settings", arrayOf("setting", "value"), null, null, null, null, null).use { cursor ->
-                            while (cursor.moveToNext()) {
-                                when (cursor.getString(0)) {
-                                    "distrustSystemCerts" -> edit.putBoolean(App.DISTRUST_SYSTEM_CERTIFICATES, cursor.getInt(1) != 0)
-                                    "overrideProxy" -> edit.putBoolean(App.OVERRIDE_PROXY, cursor.getInt(1) != 0)
-                                    "overrideProxyHost" -> edit.putString(App.OVERRIDE_PROXY_HOST, cursor.getString(1))
-                                    "overrideProxyPort" -> edit.putInt(App.OVERRIDE_PROXY_PORT, cursor.getInt(1))
-
-                                    StartupDialogFragment.HINT_GOOGLE_PLAY_ACCOUNTS_REMOVED ->
-                                        edit.putBoolean(StartupDialogFragment.HINT_GOOGLE_PLAY_ACCOUNTS_REMOVED, cursor.getInt(1) != 0)
-                                    StartupDialogFragment.HINT_OPENTASKS_NOT_INSTALLED ->
-                                        edit.putBoolean(StartupDialogFragment.HINT_OPENTASKS_NOT_INSTALLED, cursor.getInt(1) != 0)
-                                }
-                            }
-                        }
-                        db.execSQL("DROP TABLE settings")
-                    } finally {
-                        edit.apply()
-                    }*/
-                }
-            },
-
-            object : Migration(1, 2) {
-                override fun migrate(db: SupportSQLiteDatabase) {
-                    db.execSQL("ALTER TABLE collections ADD COLUMN type TEXT NOT NULL DEFAULT ''")
-                    db.execSQL("ALTER TABLE collections ADD COLUMN source TEXT DEFAULT NULL")
-                    db.execSQL("UPDATE collections SET type=(" +
-                            "SELECT CASE service WHEN ? THEN ? ELSE ? END " +
-                            "FROM services WHERE _id=collections.serviceID" +
-                            ")",
-                            arrayOf("caldav", "CALENDAR", "ADDRESS_BOOK"))
-                }
-            }
-        )
-
-    }
-
-
-    // DAOs
-
-    abstract fun serviceDao(): ServiceDao
-    abstract fun homeSetDao(): HomeSetDao
-    abstract fun collectionDao(): CollectionDao
-    abstract fun principalDao(): PrincipalDao
-    abstract fun syncStatsDao(): SyncStatsDao
-    abstract fun webDavDocumentDao(): WebDavDocumentDao
-    abstract fun webDavMountDao(): WebDavMountDao
-
-
-    // helpers
-
-    fun dump(writer: Writer, ignoreTables: Array<String>) {
-        val db = openHelper.readableDatabase
-        db.beginTransactionNonExclusive()
-
-        // iterate through all tables
-        db.query(SQLiteQueryBuilder.buildQueryString(false, "sqlite_master", arrayOf("name"), "type='table'", null, null, null, null)).use { cursorTables ->
-            while (cursorTables.moveToNext()) {
-                val tableName = cursorTables.getString(0)
-                if (ignoreTables.contains(tableName)) {
-                    writer.append("$tableName: ")
-                    db.query("SELECT COUNT(*) FROM $tableName").use { cursor ->
-                        if (cursor.moveToNext())
-                            writer.append("${cursor.getInt(0)} row(s), data not listed here\n\n")
-                    }
-                } else {
-                    writer.append("$tableName\n")
-                    db.query("SELECT * FROM $tableName").use { cursor ->
-                        val table = TextTable(*cursor.columnNames)
-                        val cols = cursor.columnCount
-                        // print rows
-                        while (cursor.moveToNext()) {
-                            val values = Array(cols) { idx -> cursor.getStringOrNull(idx) }
-                            table.addLine(*values)
-                        }
-                        writer.append(table.toString())
-                    }
-                }
-            }
-            db.endTransaction()
-        }
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/db/Collection.kt

@@ -1,192 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.db
-
-import androidx.room.Entity
-import androidx.room.ForeignKey
-import androidx.room.Index
-import androidx.room.PrimaryKey
-import at.bitfire.dav4jvm.Response
-import at.bitfire.dav4jvm.UrlUtils
-import at.bitfire.dav4jvm.property.caldav.CalendarColor
-import at.bitfire.dav4jvm.property.caldav.CalendarDescription
-import at.bitfire.dav4jvm.property.caldav.CalendarTimezone
-import at.bitfire.dav4jvm.property.caldav.Source
-import at.bitfire.dav4jvm.property.caldav.SupportedCalendarComponentSet
-import at.bitfire.dav4jvm.property.carddav.AddressbookDescription
-import at.bitfire.dav4jvm.property.webdav.CurrentUserPrivilegeSet
-import at.bitfire.dav4jvm.property.webdav.DisplayName
-import at.bitfire.dav4jvm.property.webdav.ResourceType
-import at.bitfire.davdroid.util.DavUtils
-import okhttp3.HttpUrl
-import okhttp3.HttpUrl.Companion.toHttpUrlOrNull
-import org.apache.commons.lang3.StringUtils
-
-@Entity(tableName = "collection",
-        foreignKeys = [
-            ForeignKey(entity = Service::class, parentColumns = arrayOf("id"), childColumns = arrayOf("serviceId"), onDelete = ForeignKey.CASCADE),
-            ForeignKey(entity = HomeSet::class, parentColumns = arrayOf("id"), childColumns = arrayOf("homeSetId"), onDelete = ForeignKey.SET_NULL),
-            ForeignKey(entity = Principal::class, parentColumns = arrayOf("id"), childColumns = arrayOf("ownerId"), onDelete = ForeignKey.SET_NULL)
-        ],
-        indices = [
-            Index("serviceId","type"),
-            Index("homeSetId","type"),
-            Index("url")
-        ]
-)
-data class Collection(
-    @PrimaryKey(autoGenerate = true)
-    var id: Long = 0,
-
-    /**
-     * Service, which this collection belongs to. Services are unique, so a [Collection] is uniquely
-     * identifiable via its [serviceId] and [url].
-     */
-    var serviceId: Long = 0,
-
-    /**
-     * A home set this collection belongs to. Multiple homesets are not supported.
-     * If *null* the collection is considered homeless.
-     */
-    var homeSetId: Long? = null,
-
-    /**
-     * Principal who is owner of this collection.
-     */
-    var ownerId: Long? = null,
-
-    /**
-     * Type of service. CalDAV or CardDAV
-     */
-    var type: String,
-
-    /**
-     * Address where this collection lives - with trailing slash
-     */
-    var url: HttpUrl,
-
-    var privWriteContent: Boolean = true,
-    var privUnbind: Boolean = true,
-    var forceReadOnly: Boolean = false,
-
-    var displayName: String? = null,
-    var description: String? = null,
-
-    // CalDAV only
-    var color: Int? = null,
-
-    /** timezone definition (full VTIMEZONE) - not a TZID! **/
-    var timezone: String? = null,
-
-    /** whether the collection supports VEVENT; in case of calendars: null means true */
-    var supportsVEVENT: Boolean? = null,
-
-    /** whether the collection supports VTODO; in case of calendars: null means true */
-    var supportsVTODO: Boolean? = null,
-
-    /** whether the collection supports VJOURNAL; in case of calendars: null means true */
-    var supportsVJOURNAL: Boolean? = null,
-
-    /** Webcal subscription source URL */
-    var source: HttpUrl? = null,
-
-    /** whether this collection has been selected for synchronization */
-    var sync: Boolean = false
-
-) {
-
-    companion object {
-
-        const val TYPE_ADDRESSBOOK = "ADDRESS_BOOK"
-        const val TYPE_CALENDAR = "CALENDAR"
-        const val TYPE_WEBCAL = "WEBCAL"
-
-        /**
-         * Generates a collection entity from a WebDAV response.
-         * @param dav WebDAV response
-         * @return null if the response doesn't represent a collection
-         */
-        fun fromDavResponse(dav: Response): Collection? {
-            val url = UrlUtils.withTrailingSlash(dav.href)
-            val type: String = dav[ResourceType::class.java]?.let { resourceType ->
-                when {
-                    resourceType.types.contains(ResourceType.ADDRESSBOOK) -> TYPE_ADDRESSBOOK
-                    resourceType.types.contains(ResourceType.CALENDAR)    -> TYPE_CALENDAR
-                    resourceType.types.contains(ResourceType.SUBSCRIBED)  -> TYPE_WEBCAL
-                    else -> null
-                }
-            } ?: return null
-
-            var privWriteContent = true
-            var privUnbind = true
-            dav[CurrentUserPrivilegeSet::class.java]?.let { privilegeSet ->
-                privWriteContent = privilegeSet.mayWriteContent
-                privUnbind = privilegeSet.mayUnbind
-            }
-
-            val displayName = StringUtils.trimToNull(dav[DisplayName::class.java]?.displayName)
-
-            var description: String? = null
-            var color: Int? = null
-            var timezone: String? = null
-            var supportsVEVENT: Boolean? = null
-            var supportsVTODO: Boolean? = null
-            var supportsVJOURNAL: Boolean? = null
-            var source: HttpUrl? = null
-            when (type) {
-                TYPE_ADDRESSBOOK -> {
-                    dav[AddressbookDescription::class.java]?.let { description = it.description }
-                }
-                TYPE_CALENDAR, TYPE_WEBCAL -> {
-                    dav[CalendarDescription::class.java]?.let { description = it.description }
-                    dav[CalendarColor::class.java]?.let { color = it.color }
-                    dav[CalendarTimezone::class.java]?.let { timezone = it.vTimeZone }
-
-                    if (type == TYPE_CALENDAR) {
-                        supportsVEVENT = true
-                        supportsVTODO = true
-                        supportsVJOURNAL = true
-                        dav[SupportedCalendarComponentSet::class.java]?.let {
-                            supportsVEVENT = it.supportsEvents
-                            supportsVTODO = it.supportsTasks
-                            supportsVJOURNAL = it.supportsJournal
-                        }
-                    } else { // Type.WEBCAL
-                        dav[Source::class.java]?.let {
-                            source = it.hrefs.firstOrNull()?.let { rawHref ->
-                                val href = rawHref
-                                        .replace("^webcal://".toRegex(), "http://")
-                                        .replace("^webcals://".toRegex(), "https://")
-                                href.toHttpUrlOrNull()
-                            }
-                        }
-                        supportsVEVENT = true
-                    }
-                }
-            }
-
-            return Collection(
-                    type = type,
-                    url = url,
-                    privWriteContent = privWriteContent,
-                    privUnbind = privUnbind,
-                    displayName = displayName,
-                    description = description,
-                    color = color,
-                    timezone = timezone,
-                    supportsVEVENT = supportsVEVENT,
-                    supportsVTODO = supportsVTODO,
-                    supportsVJOURNAL = supportsVJOURNAL,
-                    source = source
-            )
-        }
-
-    }
-
-    // calculated properties
-    fun title() = displayName ?: DavUtils.lastSegmentOfUrl(url)
-    fun readOnly() = forceReadOnly || !privWriteContent
-
-}

app/src/main/kotlin/at/bitfire/davdroid/db/Credentials.kt

@@ -1,35 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.db
-
-import net.openid.appauth.AuthState
-
-data class Credentials(
-    val userName: String? = null,
-    val password: String? = null,
-
-    val certificateAlias: String? = null,
-
-    val authState: AuthState? = null
-) {
-
-    override fun toString(): String {
-        val s = mutableListOf<String>()
-
-        if (userName != null)
-            s += "userName=$userName"
-        if (password != null)
-            s += "password=*****"
-
-        if (certificateAlias != null)
-            s += "certificateAlias=$certificateAlias"
-
-        if (authState != null)
-            s += "authState=${authState.jsonSerializeString()}"
-
-        return "Credentials(" + s.joinToString(", ") + ")"
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/db/ServiceDao.kt

@@ -1,49 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.db
-
-import androidx.lifecycle.LiveData
-import androidx.room.ColumnInfo
-import androidx.room.Dao
-import androidx.room.Insert
-import androidx.room.OnConflictStrategy
-import androidx.room.Query
-
-@Dao
-interface ServiceDao {
-
-    @Query("SELECT * FROM service WHERE accountName=:accountName AND type=:type")
-    fun getByAccountAndType(accountName: String, type: String): Service?
-
-    @Query("SELECT id FROM service WHERE accountName=:accountName")
-    fun getIdsByAccount(accountName: String): List<Long>
-
-    @Query("SELECT id FROM service WHERE accountName=:accountName AND type=:type")
-    fun getIdByAccountAndType(accountName: String, type: String): LiveData<Long>
-
-    @Query("SELECT type, id FROM service WHERE accountName=:accountName")
-    fun getServiceTypeAndIdsByAccount(accountName: String): LiveData<List<ServiceTypeAndId>>
-
-    @Query("SELECT * FROM service WHERE id=:id")
-    fun get(id: Long): Service?
-
-    @Insert(onConflict = OnConflictStrategy.REPLACE)
-    fun insertOrReplace(service: Service): Long
-
-    @Query("DELETE FROM service")
-    fun deleteAll()
-
-    @Query("DELETE FROM service WHERE accountName NOT IN (:accountNames)")
-    fun deleteExceptAccounts(accountNames: Array<String>)
-
-    @Query("UPDATE service SET accountName=:newName WHERE accountName=:oldName")
-    fun renameAccount(oldName: String, newName: String)
-
-}
-
-data class ServiceTypeAndId(
-    @ColumnInfo(name = "type") val type: String,
-    @ColumnInfo(name = "id") val id: Long
-)

app/src/main/kotlin/at/bitfire/davdroid/db/WebDavMountDao.kt

@@ -1,31 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.db
-
-import androidx.lifecycle.LiveData
-import androidx.room.Dao
-import androidx.room.Delete
-import androidx.room.Insert
-import androidx.room.Query
-
-@Dao
-interface WebDavMountDao {
-
-    @Delete
-    fun delete(mount: WebDavMount)
-
-    @Query("SELECT * FROM webdav_mount ORDER BY name, url")
-    fun getAll(): List<WebDavMount>
-
-    @Query("SELECT * FROM webdav_mount ORDER BY name, url")
-    fun getAllLive(): LiveData<List<WebDavMount>>
-
-    @Query("SELECT * FROM webdav_mount WHERE id=:id")
-    fun getById(id: Long): WebDavMount
-
-    @Insert
-    fun insert(mount: WebDavMount): Long
-
-}

app/src/main/kotlin/at/bitfire/davdroid/di/SyncComponent.kt

@@ -1,71 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.di
-
-import dagger.hilt.DefineComponent
-import dagger.hilt.components.SingletonComponent
-import java.lang.ref.WeakReference
-import javax.inject.Inject
-import javax.inject.Provider
-import javax.inject.Scope
-import javax.inject.Singleton
-
-@Scope
-@Retention(AnnotationRetention.BINARY)
-annotation class SyncScoped
-
-/**
- * Custom Hilt component for running syncs, lifetime managed by [SyncComponentManager].
- * Dependencies installed in this component and scoped with [SyncScoped] (like SyncValidators)
- * will have a lifetime of all active syncs.
- */
-@SyncScoped
-@DefineComponent(parent = SingletonComponent::class)
-interface SyncComponent
-
-@DefineComponent.Builder
-interface SyncComponentBuilder {
-    fun build(): SyncComponent
-}
-
-/**
- * Manages the lifecycle of [SyncComponent] by using [WeakReference].
- *
- * @sample at.bitfire.davdroid.syncadapter.LicenseValidator
- * @sample at.bitfire.davdroid.syncadapter.PaymentValidator
- */
-@Singleton
-class SyncComponentManager @Inject constructor(
-    val provider: Provider<SyncComponentBuilder>
-) {
-
-    private var componentRef: WeakReference<SyncComponent>? = null
-
-    /**
-     * Returns a [SyncComponent]. When there is already a known [SyncComponent],
-     * it will be used. Otherwise, a new one will be created and returned.
-     *
-     * It is then stored using a [WeakReference] – so as long as the component
-     * stays in memory, it will always be returned. When it's not used anymore
-     * by anyone, it can be removed by garbage collection. After this, it will be
-     * created again when [get] is called.
-     *
-     * @return singleton [SyncComponent] (will be garbage collected when not referenced anymore)
-     */
-    @Synchronized
-    fun get(): SyncComponent {
-        val component = componentRef?.get()
-
-        // check for cached component
-        if (component != null)
-            return component
-
-        // cached component not available, build new one
-        val newComponent = provider.get().build()
-        componentRef = WeakReference(newComponent)
-        return newComponent
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/log/LogcatHandler.kt

@@ -1,46 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.log
-
-import android.util.Log
-
-import org.apache.commons.lang3.math.NumberUtils
-
-import java.util.logging.Handler
-import java.util.logging.Level
-import java.util.logging.LogRecord
-
-object LogcatHandler: Handler() {
-
-    private const val MAX_LINE_LENGTH = 3000
-
-    init {
-        formatter = PlainTextFormatter.LOGCAT
-        level = Level.ALL
-    }
-
-    override fun publish(r: LogRecord) {
-        val text = formatter.format(r)
-        val level = r.level.intValue()
-
-        val end = text.length
-        var pos = 0
-        while (pos < end) {
-            val line = text.substring(pos, NumberUtils.min(pos + MAX_LINE_LENGTH, end))
-            when {
-                level >= Level.SEVERE.intValue()  -> Log.e(r.loggerName, line)
-                level >= Level.WARNING.intValue() -> Log.w(r.loggerName, line)
-                level >= Level.CONFIG.intValue()  -> Log.i(r.loggerName, line)
-                level >= Level.FINER.intValue()   -> Log.d(r.loggerName, line)
-                else                              -> Log.v(r.loggerName, line)
-            }
-            pos += MAX_LINE_LENGTH
-        }
-    }
-
-    override fun flush() {}
-    override fun close() {}
-
-}

app/src/main/kotlin/at/bitfire/davdroid/log/Logger.kt

@@ -1,158 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.log
-
-import android.app.Application
-import android.app.PendingIntent
-import android.content.Intent
-import android.content.SharedPreferences
-import android.os.Process
-import android.util.Log
-import android.widget.Toast
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationManagerCompat
-import androidx.preference.PreferenceManager
-import at.bitfire.davdroid.BuildConfig
-import at.bitfire.davdroid.R
-import at.bitfire.davdroid.ui.AppSettingsActivity
-import at.bitfire.davdroid.ui.DebugInfoActivity
-import at.bitfire.davdroid.ui.NotificationUtils
-import at.bitfire.davdroid.ui.NotificationUtils.notifyIfPossible
-import java.io.File
-import java.io.IOException
-import java.util.Date
-import java.util.logging.FileHandler
-import java.util.logging.Level
-
-object Logger : SharedPreferences.OnSharedPreferenceChangeListener {
-
-    const val LOGGER_NAME = "davx5"
-    private const val LOG_TO_FILE = "log_to_file"
-
-    val log: java.util.logging.Logger = java.util.logging.Logger.getLogger(LOGGER_NAME)
-
-    private lateinit var context: Application
-    private lateinit var preferences: SharedPreferences
-
-
-    fun initialize(app: Application) {
-        context = app
-        preferences = PreferenceManager.getDefaultSharedPreferences(context)
-        preferences.registerOnSharedPreferenceChangeListener(this)
-
-        reinitialize()
-    }
-
-    override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences, key: String?) {
-        if (key == LOG_TO_FILE) {
-            log.info("Logging settings changed; re-initializing logger")
-            reinitialize()
-        }
-    }
-
-    @Synchronized
-    private fun reinitialize() {
-        val logToFile = preferences.getBoolean(LOG_TO_FILE, false)
-        val logVerbose = logToFile || BuildConfig.DEBUG || Log.isLoggable(log.name, Log.DEBUG)
-
-        log.info("Verbose logging: $logVerbose; to file: $logToFile")
-
-        // set logging level according to preferences
-        val rootLogger = java.util.logging.Logger.getLogger("")
-        rootLogger.level = if (logVerbose) Level.ALL else Level.INFO
-
-        // reset all handlers and add our own logcat handler
-        rootLogger.useParentHandlers = false
-        rootLogger.handlers.forEach { handler ->
-            rootLogger.removeHandler(handler)
-            if (handler is FileHandler)     // gracefully close previous verbose-logging FileHandlers
-                handler.close()
-        }
-        rootLogger.addHandler(LogcatHandler)
-
-        val nm = NotificationManagerCompat.from(context)
-        // log to external file according to preferences
-        if (logToFile) {
-            val logFile = getDebugLogFile() ?: return log.warning("Log file could not be retrieved.")
-            if (logFile.createNewFile())
-                logFile.writeText("Log file created at ${Date()}; PID ${Process.myPid()}; UID ${Process.myUid()}\n")
-
-            try {
-                val fileHandler = FileHandler(logFile.toString(), true).apply {
-                    formatter = PlainTextFormatter.DEFAULT
-                }
-                rootLogger.addHandler(fileHandler)
-                log.info("Now logging to file: $logFile")
-
-                val builder = NotificationUtils.newBuilder(context, NotificationUtils.CHANNEL_DEBUG)
-                builder .setSmallIcon(R.drawable.ic_sd_card_notify)
-                        .setContentTitle(context.getString(R.string.app_settings_logging))
-                        .setCategory(NotificationCompat.CATEGORY_STATUS)
-                        .setPriority(NotificationCompat.PRIORITY_HIGH)
-                        .setContentText(context.getString(R.string.logging_notification_text, context.getString(R.string.app_name)))
-                        .setOngoing(true)
-
-                val shareIntent = DebugInfoActivity.IntentBuilder(context)
-                    .newTask()
-                    .share()
-                val pendingShare = PendingIntent.getActivity(context, 0, shareIntent, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE)
-                builder.addAction(NotificationCompat.Action.Builder(
-                        R.drawable.ic_share,
-                        context.getString(R.string.logging_notification_view_share),
-                        pendingShare
-                ).build())
-
-                val prefIntent = Intent(context, AppSettingsActivity::class.java)
-                prefIntent.putExtra(AppSettingsActivity.EXTRA_SCROLL_TO, LOG_TO_FILE)
-                prefIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-                val pendingPref = PendingIntent.getActivity(context, 0, prefIntent, PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE)
-                builder.addAction(NotificationCompat.Action.Builder(
-                        R.drawable.ic_settings,
-                        context.getString(R.string.logging_notification_disable),
-                        pendingPref
-                ).build())
-
-                nm.notifyIfPossible(NotificationUtils.NOTIFY_VERBOSE_LOGGING, builder.build())
-            } catch(e: IOException) {
-                log.log(Level.SEVERE, "Couldn't create log file", e)
-                Toast.makeText(context, context.getString(R.string.logging_couldnt_create_file), Toast.LENGTH_LONG).show()
-            }
-        } else {
-            // verbose logging is disabled -> cancel notification and remove old logs
-            nm.cancel(NotificationUtils.NOTIFY_VERBOSE_LOGGING)
-            debugDir()?.deleteRecursively()
-        }
-    }
-
-
-    /**
-     * Creates (when necessary) and returns the directory where all the debug files (such as log files) are stored.
-     * Must match the contents of `res/xml/debug.paths.xml`.
-     *
-     * @return The directory where all debug info are stored, or `null` if the directory couldn't be created successfully.
-     */
-    fun debugDir(): File? {
-        val dir = File(context.filesDir, "debug")
-        if (dir.exists() && dir.isDirectory)
-            return dir
-
-        if (dir.mkdir())
-            return dir
-
-        Toast.makeText(context, context.getString(R.string.logging_couldnt_create_file), Toast.LENGTH_LONG).show()
-        return null
-    }
-
-    /**
-     * The file (in [debugDir]) where verbose logs are stored.
-     *
-     * @return The file where verbose logs are stored, or `null` if there's no [debugDir].
-     */
-    fun getDebugLogFile(): File? {
-        val logDir = debugDir() ?: return null
-        return File(logDir, "davx5-log.txt")
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/log/PlainTextFormatter.kt

@@ -1,58 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.log
-
-import org.apache.commons.lang3.StringUtils
-import org.apache.commons.lang3.exception.ExceptionUtils
-import org.apache.commons.lang3.time.DateFormatUtils
-import java.util.Locale
-import java.util.logging.Formatter
-import java.util.logging.LogRecord
-
-class PlainTextFormatter private constructor(
-        private val logcat: Boolean
-): Formatter() {
-
-    companion object {
-        val LOGCAT = PlainTextFormatter(true)
-        val DEFAULT = PlainTextFormatter(false)
-
-        const val MAX_MESSAGE_LENGTH = 20000
-    }
-
-    override fun format(r: LogRecord): String {
-        val builder = StringBuilder()
-
-        if (!logcat)
-            builder .append(DateFormatUtils.format(r.millis, "yyyy-MM-dd HH:mm:ss", Locale.ROOT))
-                    .append(" ").append(r.threadID).append(" ")
-
-        val className = shortClassName(r.sourceClassName)
-        if (className != r.loggerName)
-            builder.append("[").append(className).append("] ")
-
-        builder.append(StringUtils.abbreviate(r.message, MAX_MESSAGE_LENGTH))
-
-        r.thrown?.let {
-            builder .append("\nEXCEPTION ")
-                    .append(ExceptionUtils.getStackTrace(it))
-        }
-
-        r.parameters?.let {
-            for ((idx, param) in it.withIndex())
-                builder.append("\n\tPARAMETER #").append(idx).append(" = ").append(param)
-        }
-
-        if (!logcat)
-            builder.append("\n")
-
-        return builder.toString()
-    }
-
-    private fun shortClassName(className: String) = className
-            .replace(Regex("^at\\.bitfire\\.(dav|cert4an|dav4an|ical4an|vcard4an)droid\\."), "")
-            .replace(Regex("\\$.*$"), "")
-
-}

app/src/main/kotlin/at/bitfire/davdroid/log/StringHandler.kt

@@ -1,27 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.log
-
-import java.util.logging.Handler
-import java.util.logging.LogRecord
-
-class StringHandler: Handler() {
-
-    val builder = StringBuilder()
-
-    init {
-        formatter = PlainTextFormatter.DEFAULT
-    }
-
-    override fun publish(record: LogRecord) {
-        builder.append(formatter.format(record))
-    }
-
-    override fun flush() {}
-    override fun close() {}
-
-    override fun toString() = builder.toString()
-
-}

app/src/main/kotlin/at/bitfire/davdroid/network/BearerAuthInterceptor.kt

@@ -1,69 +0,0 @@
-/*
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- */
-
-package at.bitfire.davdroid.network
-
-import at.bitfire.davdroid.log.Logger
-import kotlinx.coroutines.CancellationException
-import kotlinx.coroutines.CompletableDeferred
-import kotlinx.coroutines.runBlocking
-import net.openid.appauth.AuthState
-import net.openid.appauth.AuthorizationException
-import net.openid.appauth.AuthorizationService
-import okhttp3.Interceptor
-import okhttp3.Response
-import java.util.logging.Level
-
-/**
- * Sends an OAuth Bearer token authorization as described in RFC 6750.
- */
-class BearerAuthInterceptor(
-    private val accessToken: String
-): Interceptor {
-
-    companion object {
-
-        fun fromAuthState(authService: AuthorizationService, authState: AuthState, callback: AuthStateUpdateCallback? = null): BearerAuthInterceptor? {
-            return runBlocking {
-                val accessTokenFuture = CompletableDeferred<String>()
-
-                authState.performActionWithFreshTokens(authService) { accessToken: String?, _: String?, ex: AuthorizationException? ->
-                    if (accessToken != null) {
-                        // persist updated AuthState
-                        callback?.onUpdate(authState)
-
-                        // emit access token
-                        accessTokenFuture.complete(accessToken)
-                    }
-                    else {
-                        Logger.log.log(Level.WARNING, "Couldn't obtain access token", ex)
-                        accessTokenFuture.cancel()
-                    }
-                }
-
-                // return value
-                try {
-                    BearerAuthInterceptor(accessTokenFuture.await())
-                } catch (ignored: CancellationException) {
-                    null
-                }
-            }
-        }
-
-    }
-
-    override fun intercept(chain: Interceptor.Chain): Response {
-        Logger.log.finer("Authenticating request with access token")
-        val rq = chain.request().newBuilder()
-            .header("Authorization", "Bearer $accessToken")
-            .build()
-        return chain.proceed(rq)
-    }
-
-
-    fun interface AuthStateUpdateCallback {
-        fun onUpdate(authState: AuthState)
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/network/ConnectionUtils.kt

@@ -1,73 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.network
-
-import android.net.ConnectivityManager
-import android.net.NetworkCapabilities
-import at.bitfire.davdroid.log.Logger
-import java.util.logging.Level
-
-object ConnectionUtils {
-
-    /**
-     * Checks whether we are connected to validated WiFi
-     */
-    internal fun wifiAvailable(connectivityManager: ConnectivityManager): Boolean {
-        connectivityManager.allNetworks.forEach { network ->
-            connectivityManager.getNetworkCapabilities(network)?.let { capabilities ->
-                if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) &&
-                    capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED))
-                    return true
-            }
-        }
-        return false
-    }
-
-    /**
-     * Checks whether we are connected to the Internet.
-     *
-     * On API 26+ devices, if a VPN is used, WorkManager might start the SyncWorker without an
-     * Internet connection (because [NetworkCapabilities.NET_CAPABILITY_VALIDATED] is always set for VPN connections).
-     * To prevent the start without internet access, we don't check for VPN connections by default
-     * (by using [NetworkCapabilities.NET_CAPABILITY_NOT_VPN]).
-     *
-     * However in special occasions (when syncing over a VPN without validated Internet on the
-     * underlying connection) we do not want to exclude VPNs.
-     *
-     * @param ignoreVpns *true* filters VPN connections in the Internet check; *false* allows them as valid connection
-     * @return whether we are connected to the Internet
-     */
-    internal fun internetAvailable(connectivityManager: ConnectivityManager, ignoreVpns: Boolean): Boolean {
-        return connectivityManager.allNetworks.any { network ->
-            val capabilities = connectivityManager.getNetworkCapabilities(network)
-            Logger.log.log(Level.FINE, "Looking for validated Internet over this connection.",
-                arrayOf(connectivityManager.getNetworkInfo(network), capabilities))
-
-            if (capabilities != null) {
-                if (!capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) {
-                    Logger.log.fine("Missing network capability: INTERNET")
-                    return@any false
-                }
-
-                if (!capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED)) {
-                    Logger.log.fine("Missing network capability: VALIDATED")
-                    return@any false
-                }
-
-                if (ignoreVpns)
-                    if (!capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VPN)) {
-                        Logger.log.fine("Missing network capability: NOT_VPN")
-                        return@any false
-                    }
-
-                Logger.log.fine("This connection can be used.")
-                /* return@any */ true
-            } else
-                // no network capabilities available, we can't use this connection
-                /* return@any */ false
-        }
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/network/HttpClient.kt

@@ -1,318 +0,0 @@
-/*
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- */
-
-package at.bitfire.davdroid.network
-
-import android.content.Context
-import android.os.Build
-import android.security.KeyChain
-import at.bitfire.cert4android.CustomCertManager
-import at.bitfire.dav4jvm.BasicDigestAuthHandler
-import at.bitfire.dav4jvm.UrlUtils
-import at.bitfire.davdroid.BuildConfig
-import at.bitfire.davdroid.db.Credentials
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.settings.AccountSettings
-import at.bitfire.davdroid.settings.Settings
-import at.bitfire.davdroid.settings.SettingsManager
-import dagger.hilt.EntryPoint
-import dagger.hilt.InstallIn
-import dagger.hilt.android.EntryPointAccessors
-import dagger.hilt.components.SingletonComponent
-import kotlinx.coroutines.flow.MutableStateFlow
-import net.openid.appauth.AuthState
-import net.openid.appauth.AuthorizationService
-import okhttp3.*
-import okhttp3.brotli.BrotliInterceptor
-import okhttp3.internal.tls.OkHostnameVerifier
-import okhttp3.logging.HttpLoggingInterceptor
-import java.io.File
-import java.net.InetSocketAddress
-import java.net.Proxy
-import java.net.Socket
-import java.security.KeyStore
-import java.security.Principal
-import java.text.SimpleDateFormat
-import java.util.*
-import java.util.concurrent.TimeUnit
-import java.util.logging.Level
-import javax.net.ssl.*
-
-class HttpClient private constructor(
-    val okHttpClient: OkHttpClient,
-    private var authService: AuthorizationService? = null
-): AutoCloseable {
-
-    @EntryPoint
-    @InstallIn(SingletonComponent::class)
-    interface HttpClientEntryPoint {
-        fun authorizationService(): AuthorizationService
-        fun settingsManager(): SettingsManager
-    }
-
-    companion object {
-        /** max. size of disk cache (10 MB) */
-        const val DISK_CACHE_MAX_SIZE: Long = 10*1024*1024
-
-        /** Base Builder to build all clients from. Use rarely; [OkHttpClient]s should
-         * be reused as much as possible. */
-        fun baseBuilder() =
-            OkHttpClient.Builder()
-                // Set timeouts. According to [AbstractThreadedSyncAdapter], when there is no network
-                // traffic within a minute, a sync will be cancelled.
-                .connectTimeout(15, TimeUnit.SECONDS)
-                .writeTimeout(30, TimeUnit.SECONDS)
-                .readTimeout(120, TimeUnit.SECONDS)
-                .pingInterval(
-                    45,
-                    TimeUnit.SECONDS
-                )     // avoid cancellation because of missing traffic; only works for HTTP/2
-
-                // keep TLS 1.0 and 1.1 for now; remove when major browsers have dropped it (probably 2020)
-                .connectionSpecs(
-                    listOf(
-                        ConnectionSpec.CLEARTEXT,
-                        ConnectionSpec.COMPATIBLE_TLS
-                    )
-                )
-
-                // don't allow redirects by default, because it would break PROPFIND handling
-                .followRedirects(false)
-
-                // add User-Agent to every request
-                .addInterceptor(UserAgentInterceptor)
-    }
-
-    override fun close() {
-        authService?.dispose()
-        okHttpClient.cache?.close()
-    }
-
-
-    class Builder(
-        val context: Context,
-        accountSettings: AccountSettings? = null,
-        val logger: java.util.logging.Logger? = Logger.log,
-        val loggerLevel: HttpLoggingInterceptor.Level = HttpLoggingInterceptor.Level.BODY
-    ) {
-
-        fun interface CertManagerProducer {
-            fun certManager(): CustomCertManager
-        }
-
-        private var appInForeground: MutableStateFlow<Boolean>? =
-                MutableStateFlow(false)
-        private var authService: AuthorizationService? = null
-        private var certManagerProducer: CertManagerProducer? = null
-        private var certificateAlias: String? = null
-        private var offerCompression: Boolean = false
-
-        // default cookie store for non-persistent cookies (some services like Horde use cookies for session tracking)
-        private var cookieStore: CookieJar? = MemoryCookieStore()
-
-        private val orig = baseBuilder()
-
-        init {
-            // add network logging, if requested
-            if (logger != null && logger.isLoggable(Level.FINEST)) {
-                val loggingInterceptor = HttpLoggingInterceptor { message -> logger.finest(message) }
-                loggingInterceptor.level = loggerLevel
-                orig.addNetworkInterceptor(loggingInterceptor)
-            }
-
-            val settings = EntryPointAccessors.fromApplication(context, HttpClientEntryPoint::class.java).settingsManager()
-
-            // custom proxy support
-            try {
-                val proxyTypeValue = settings.getInt(Settings.PROXY_TYPE)
-                if (proxyTypeValue != Settings.PROXY_TYPE_SYSTEM) {
-                    // we set our own proxy
-                    val address by lazy {           // lazy because not required for PROXY_TYPE_NONE
-                        InetSocketAddress(
-                            settings.getString(Settings.PROXY_HOST),
-                            settings.getInt(Settings.PROXY_PORT)
-                        )
-                    }
-                    val proxy =
-                        when (proxyTypeValue) {
-                            Settings.PROXY_TYPE_NONE -> Proxy.NO_PROXY
-                            Settings.PROXY_TYPE_HTTP -> Proxy(Proxy.Type.HTTP, address)
-                            Settings.PROXY_TYPE_SOCKS -> Proxy(Proxy.Type.SOCKS, address)
-                            else -> throw IllegalArgumentException("Invalid proxy type")
-                        }
-                    orig.proxy(proxy)
-                    Logger.log.log(Level.INFO, "Using proxy setting", proxy)
-                }
-            } catch (e: Exception) {
-                Logger.log.log(Level.SEVERE, "Can't set proxy, ignoring", e)
-            }
-
-            customCertManager {
-                // by default, use a CustomCertManager that respects the "distrust system certificates" setting
-                val trustSystemCerts = !settings.getBoolean(Settings.DISTRUST_SYSTEM_CERTIFICATES)
-                CustomCertManager(context, trustSystemCerts, appInForeground)
-            }
-
-            // use account settings for authentication and cookies
-            if (accountSettings != null)
-                addAuthentication(null, accountSettings.credentials(), authStateCallback = { authState: AuthState ->
-                    accountSettings.credentials(Credentials(authState = authState))
-                })
-        }
-
-        constructor(context: Context, host: String?, credentials: Credentials?) : this(context) {
-            if (credentials != null)
-                addAuthentication(host, credentials)
-        }
-
-        fun addAuthentication(host: String?, credentials: Credentials, insecurePreemptive: Boolean = false, authStateCallback: BearerAuthInterceptor.AuthStateUpdateCallback? = null): Builder {
-            if (credentials.userName != null && credentials.password != null) {
-                val authHandler = BasicDigestAuthHandler(UrlUtils.hostToDomain(host), credentials.userName, credentials.password, insecurePreemptive)
-                orig.addNetworkInterceptor(authHandler)
-                    .authenticator(authHandler)
-            }
-
-            if (credentials.certificateAlias != null)
-                certificateAlias = credentials.certificateAlias
-
-            credentials.authState?.let { authState ->
-                val newAuthService = EntryPointAccessors.fromApplication(context, HttpClientEntryPoint::class.java).authorizationService()
-                authService = newAuthService
-                BearerAuthInterceptor.fromAuthState(newAuthService, authState, authStateCallback)?.let { bearerAuthInterceptor ->
-                    orig.addNetworkInterceptor(bearerAuthInterceptor)
-                }
-            }
-            return this
-        }
-
-        fun allowCompression(allow: Boolean): Builder {
-            offerCompression = allow
-            return this
-        }
-
-        fun cookieStore(store: CookieJar?): Builder {
-            cookieStore = store
-            return this
-        }
-
-        fun followRedirects(follow: Boolean): Builder {
-            orig.followRedirects(follow)
-            return this
-        }
-
-        fun customCertManager(producer: CertManagerProducer) {
-            certManagerProducer = producer
-        }
-        fun setForeground(foreground: Boolean): Builder {
-            appInForeground?.value = foreground
-            return this
-        }
-
-        fun withDiskCache(): Builder {
-            for (dir in arrayOf(context.externalCacheDir, context.cacheDir).filterNotNull()) {
-                if (dir.exists() && dir.canWrite()) {
-                    val cacheDir = File(dir, "HttpClient")
-                    cacheDir.mkdir()
-                    Logger.log.fine("Using disk cache: $cacheDir")
-                    orig.cache(Cache(cacheDir, DISK_CACHE_MAX_SIZE))
-                    break
-                }
-            }
-            return this
-        }
-
-        fun build(): HttpClient {
-            cookieStore?.let {
-                orig.cookieJar(it)
-            }
-
-            if (offerCompression)
-                // offer Brotli and gzip compression
-                orig.addInterceptor(BrotliInterceptor)
-
-            var keyManager: KeyManager? = null
-            certificateAlias?.let { alias ->
-                // get provider certificate and private key
-                val certs = KeyChain.getCertificateChain(context, alias) ?: return@let
-                val key = KeyChain.getPrivateKey(context, alias) ?: return@let
-                logger?.fine("Using provider certificate $alias for authentication (chain length: ${certs.size})")
-
-                // create KeyManager
-                keyManager = object : X509ExtendedKeyManager() {
-                    override fun getServerAliases(p0: String?, p1: Array<out Principal>?): Array<String>? = null
-                    override fun chooseServerAlias(p0: String?, p1: Array<out Principal>?, p2: Socket?) = null
-
-                    override fun getClientAliases(p0: String?, p1: Array<out Principal>?) =
-                            arrayOf(alias)
-
-                    override fun chooseClientAlias(p0: Array<out String>?, p1: Array<out Principal>?, p2: Socket?) =
-                            alias
-
-                    override fun getCertificateChain(forAlias: String?) =
-                            certs.takeIf { forAlias == alias }
-
-                    override fun getPrivateKey(forAlias: String?) =
-                            key.takeIf { forAlias == alias }
-                }
-
-                // HTTP/2 doesn't support client certificates (yet)
-                // see https://tools.ietf.org/html/draft-ietf-httpbis-http2-secondary-certs-04
-                orig.protocols(listOf(Protocol.HTTP_1_1))
-            }
-
-            if (certManagerProducer != null || keyManager != null) {
-                val manager = certManagerProducer?.certManager()
-
-                val trustManager = manager ?: /* fall back to system default trust manager */
-                    TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
-                    .let { factory ->
-                        factory.init(null as KeyStore?)
-                        factory.trustManagers.first() as X509TrustManager
-                    }
-
-                val hostnameVerifier =
-                    if (manager != null)
-                        manager.HostnameVerifier(OkHostnameVerifier)
-                    else
-                        OkHostnameVerifier
-
-                val sslContext = SSLContext.getInstance("TLS")
-                sslContext.init(
-                    if (keyManager != null) arrayOf(keyManager) else null,
-                    arrayOf(trustManager),
-                    null)
-                orig.sslSocketFactory(sslContext.socketFactory, trustManager)
-                orig.hostnameVerifier(hostnameVerifier)
-            }
-
-            return HttpClient(orig.build(), authService = authService)
-        }
-
-    }
-
-
-    object UserAgentInterceptor: Interceptor {
-
-        // use Locale.ROOT because numbers may be encoded as non-ASCII characters in other locales
-        private val userAgentDateFormat = SimpleDateFormat("yyyy/MM/dd", Locale.ROOT)
-        private val userAgentDate = userAgentDateFormat.format(Date(BuildConfig.buildTime))
-        val userAgent = "${BuildConfig.userAgent}/${BuildConfig.VERSION_NAME} ($userAgentDate; dav4jvm; " +
-                "okhttp/${OkHttp.VERSION}) Android/${Build.VERSION.RELEASE}"
-
-        init {
-            Logger.log.info("Will set \"User-Agent: $userAgent\" for further requests")
-        }
-
-        override fun intercept(chain: Interceptor.Chain): Response {
-            val locale = Locale.getDefault()
-            val request = chain.request().newBuilder()
-                    .header("User-Agent", userAgent)
-                    .header("Accept-Language", "${locale.language}-${locale.country}, ${locale.language};q=0.7, *;q=0.5")
-                    .build()
-            return chain.proceed(request)
-        }
-
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/network/MemoryCookieStore.kt

@@ -1,59 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.network
-
-import okhttp3.Cookie
-import okhttp3.CookieJar
-import okhttp3.HttpUrl
-import org.apache.commons.collections4.keyvalue.MultiKey
-import org.apache.commons.collections4.map.HashedMap
-import org.apache.commons.collections4.map.MultiKeyMap
-import java.util.LinkedList
-
-/**
- * Primitive cookie store that stores cookies in a (volatile) hash map.
- * Will be sufficient for session cookies.
- */
-class MemoryCookieStore: CookieJar {
-
-    /**
-     * Stored cookies. The multi-key consists of three parts: name, domain, and path.
-     * This ensures that cookies can be overwritten. [RFC 6265 5.3 Storage Model]
-     * Not thread-safe!
-     */
-    private val storage = MultiKeyMap.multiKeyMap(HashedMap<MultiKey<out String>, Cookie>())!!
-
-    override fun saveFromResponse(url: HttpUrl, cookies: List<Cookie>) {
-        synchronized(storage) {
-            for (cookie in cookies)
-                storage.put(cookie.name, cookie.domain, cookie.path, cookie)
-        }
-    }
-
-    override fun loadForRequest(url: HttpUrl): List<Cookie> {
-        val cookies = LinkedList<Cookie>()
-
-        synchronized(storage) {
-            val iter = storage.mapIterator()
-            while (iter.hasNext()) {
-                iter.next()
-                val cookie = iter.value
-
-                // remove expired cookies
-                if (cookie.expiresAt <= System.currentTimeMillis()) {
-                    iter.remove()
-                    continue
-                }
-
-                // add applicable cookies
-                if (cookie.matches(url))
-                    cookies += cookie
-            }
-        }
-
-        return cookies
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/resource/LocalAddress.kt

@@ -1,9 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import at.bitfire.vcard4android.Contact
-
-interface LocalAddress: LocalResource<Contact>

app/src/main/kotlin/at/bitfire/davdroid/resource/LocalAddressBook.kt

@@ -1,437 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-package at.bitfire.davdroid.resource
-
-import android.accounts.Account
-import android.accounts.AccountManager
-import android.content.ContentProviderClient
-import android.content.ContentResolver
-import android.content.ContentUris
-import android.content.ContentValues
-import android.content.Context
-import android.os.Build
-import android.os.Bundle
-import android.os.RemoteException
-import android.provider.ContactsContract
-import android.provider.ContactsContract.CommonDataKinds.GroupMembership
-import android.provider.ContactsContract.Groups
-import android.provider.ContactsContract.RawContacts
-import android.util.Base64
-import at.bitfire.davdroid.R
-import at.bitfire.davdroid.db.Collection
-import at.bitfire.davdroid.db.SyncState
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.settings.AccountSettings
-import at.bitfire.davdroid.syncadapter.AccountUtils
-import at.bitfire.davdroid.util.DavUtils
-import at.bitfire.davdroid.util.setAndVerifyUserData
-import at.bitfire.vcard4android.AndroidAddressBook
-import at.bitfire.vcard4android.AndroidContact
-import at.bitfire.vcard4android.AndroidGroup
-import at.bitfire.vcard4android.Constants
-import at.bitfire.vcard4android.GroupMethod
-import java.io.ByteArrayOutputStream
-import java.util.LinkedList
-import java.util.logging.Level
-
-/**
- * A local address book. Requires an own Android account, because Android manages contacts per
- * account and there is no such thing as "address books". So, DAVx5 creates a "DAVx5
- * address book" account for every CardDAV address book. These accounts are bound to a
- * DAVx5 main account.
- */
-open class LocalAddressBook(
-        private val context: Context,
-        account: Account,
-        provider: ContentProviderClient?
-): AndroidAddressBook<LocalContact, LocalGroup>(account, provider, LocalContact.Factory, LocalGroup.Factory), LocalCollection<LocalAddress> {
-
-    companion object {
-
-        const val USER_DATA_MAIN_ACCOUNT_TYPE = "real_account_type"
-        const val USER_DATA_MAIN_ACCOUNT_NAME = "real_account_name"
-        const val USER_DATA_URL = "url"
-        const val USER_DATA_READ_ONLY = "read_only"
-
-        /**
-         * Creates a local address book.
-         *
-         * @param context        app context to resolve string resources
-         * @param provider       contacts provider client
-         * @param mainAccount    main account this address book (account) belongs to
-         * @param info           collection where to take the name and settings from
-         * @param forceReadOnly  `true`: set the address book to "force read-only"; `false`: determine read-only flag from [info]
-         */
-        fun create(context: Context, provider: ContentProviderClient, mainAccount: Account, info: Collection, forceReadOnly: Boolean): LocalAddressBook {
-            val account = Account(accountName(mainAccount, info), context.getString(R.string.account_type_address_book))
-            val userData = initialUserData(mainAccount, info.url.toString())
-            Logger.log.log(Level.INFO, "Creating local address book $account", userData)
-            if (!AccountUtils.createAccount(context, account, userData))
-                throw IllegalStateException("Couldn't create address book account")
-
-            val addressBook = LocalAddressBook(context, account, provider)
-            addressBook.updateSyncFrameworkSettings()
-
-            // initialize Contacts Provider Settings
-            val values = ContentValues(2)
-            values.put(ContactsContract.Settings.SHOULD_SYNC, 1)
-            values.put(ContactsContract.Settings.UNGROUPED_VISIBLE, 1)
-            addressBook.settings = values
-            addressBook.readOnly = forceReadOnly || !info.privWriteContent || info.forceReadOnly
-
-            return addressBook
-        }
-
-        /**
-         * Finds and returns all the local address books belonging to a given main account
-         *
-         * @param mainAccount the main account to use
-         * @return list of [mainAccount]'s address books
-         */
-        fun findAll(context: Context, provider: ContentProviderClient?, mainAccount: Account) = AccountManager.get(context)
-                .getAccountsByType(context.getString(R.string.account_type_address_book))
-                .map { LocalAddressBook(context, it, provider) }
-                .filter {
-                    try {
-                        it.mainAccount == mainAccount
-                    } catch(e: IllegalArgumentException) {
-                        false
-                    }
-                }
-                .toList()
-
-        fun accountName(mainAccount: Account, info: Collection): String {
-            val baos = ByteArrayOutputStream()
-            baos.write(info.url.hashCode())
-            val hash = Base64.encodeToString(baos.toByteArray(), Base64.NO_WRAP or Base64.NO_PADDING)
-
-            val sb = StringBuilder(info.displayName.let {
-                if (it.isNullOrEmpty())
-                    DavUtils.lastSegmentOfUrl(info.url)
-                else
-                    it
-            })
-            sb.append(" (${mainAccount.name} $hash)")
-            return sb.toString()
-        }
-
-        fun initialUserData(mainAccount: Account, url: String): Bundle {
-            val bundle = Bundle(3)
-            bundle.putString(USER_DATA_MAIN_ACCOUNT_NAME, mainAccount.name)
-            bundle.putString(USER_DATA_MAIN_ACCOUNT_TYPE, mainAccount.type)
-            bundle.putString(USER_DATA_URL, url)
-            return bundle
-        }
-
-        /**
-         * Finds and returns the main account of the given address book's account (sub-account)
-         *
-         * @param account the address book account to find the main account for
-         * @return the associated main account
-         * @throws IllegalArgumentException if the given account is not a address book account or does not have a main account
-         */
-        fun mainAccount(context: Context, account: Account): Account =
-            if (account.type == context.getString(R.string.account_type_address_book)) {
-                val manager = AccountManager.get(context)
-                val accountName = manager.getUserData(account, USER_DATA_MAIN_ACCOUNT_NAME)
-                val accountType = manager.getUserData(account, USER_DATA_MAIN_ACCOUNT_TYPE)
-                if (accountName == null || accountType == null)
-                    throw IllegalArgumentException("Address book account does not have a main account")
-                Account(accountName, accountType)
-            } else
-                throw IllegalArgumentException("Account is not an address book account")
-
-    }
-
-    override val tag: String
-        get() = "contacts-${account.name}"
-
-    override val title = account.name!!
-
-    /**
-     * Whether contact groups ([LocalGroup]) are included in query results
-     * and are affected by updates/deletes on generic members.
-     *
-     * For instance, if groupMethod is GROUP_VCARDS, [findDirty] will find only dirty [LocalContact]s,
-     * but if it is enabled, [findDirty] will find dirty [LocalContact]s and [LocalGroup]s.
-     */
-    open val groupMethod: GroupMethod by lazy {
-        val accountSettings = AccountSettings(context, mainAccount)
-        accountSettings.getGroupMethod()
-    }
-    val includeGroups
-        get() = groupMethod == GroupMethod.GROUP_VCARDS
-
-    private var _mainAccount: Account? = null
-    /**
-     * The associated main account which this address book's accounts belong to.
-     *
-     * @throws IllegalArgumentException when [account] is not an address book account or when no main account is assigned
-     */
-    open var mainAccount: Account
-        get() {
-            _mainAccount?.let { return it }
-
-            val result = mainAccount(context, account)
-            _mainAccount = result
-            return result
-        }
-        set(newMainAccount) {
-            AccountManager.get(context).let { accountManager ->
-                accountManager.setAndVerifyUserData(account, USER_DATA_MAIN_ACCOUNT_NAME, newMainAccount.name)
-                accountManager.setAndVerifyUserData(account, USER_DATA_MAIN_ACCOUNT_TYPE, newMainAccount.type)
-            }
-
-            _mainAccount = newMainAccount
-        }
-
-    var url: String
-        get() = AccountManager.get(context).getUserData(account, USER_DATA_URL)
-                ?: throw IllegalStateException("Address book has no URL")
-        set(url) = AccountManager.get(context).setAndVerifyUserData(account, USER_DATA_URL, url)
-
-    override var readOnly: Boolean
-        get() = AccountManager.get(context).getUserData(account, USER_DATA_READ_ONLY) != null
-        set(readOnly) = AccountManager.get(context).setAndVerifyUserData(account, USER_DATA_READ_ONLY, if (readOnly) "1" else null)
-
-    override var lastSyncState: SyncState?
-        get() = syncState?.let { SyncState.fromString(String(it)) }
-        set(state) {
-            syncState = state?.toString()?.toByteArray()
-        }
-
-
-    /* operations on the collection (address book) itself */
-
-    override fun markNotDirty(flags: Int): Int {
-        val values = ContentValues(1)
-        values.put(LocalContact.COLUMN_FLAGS, flags)
-        var number = provider!!.update(rawContactsSyncUri(), values, "${RawContacts.DIRTY}=0", null)
-
-        if (includeGroups) {
-            values.clear()
-            values.put(LocalGroup.COLUMN_FLAGS, flags)
-            number += provider!!.update(groupsSyncUri(), values, "NOT ${Groups.DIRTY}", null)
-        }
-
-        return number
-    }
-
-    override fun removeNotDirtyMarked(flags: Int): Int {
-        var number = provider!!.delete(rawContactsSyncUri(),
-                "NOT ${RawContacts.DIRTY} AND ${LocalContact.COLUMN_FLAGS}=?", arrayOf(flags.toString()))
-
-        if (includeGroups)
-            number += provider!!.delete(groupsSyncUri(),
-                    "NOT ${Groups.DIRTY} AND ${LocalGroup.COLUMN_FLAGS}=?", arrayOf(flags.toString()))
-
-        return number
-    }
-
-    /**
-     * Updates the address book settings.
-     *
-     * @param info  collection where to take the settings from
-     * @param forceReadOnly  `true`: set the address book to "force read-only"; `false`: determine read-only flag from [info]
-     */
-    fun update(info: Collection, forceReadOnly: Boolean) {
-        val newAccountName = accountName(mainAccount, info)
-
-        if (account.name != newAccountName) {
-            // no need to re-assign contacts to new account, because they will be deleted by contacts provider in any case
-            val accountManager = AccountManager.get(context)
-            val future = accountManager.renameAccount(account, newAccountName, null, null)
-            account = future.result
-        }
-
-        val nowReadOnly = forceReadOnly || !info.privWriteContent || info.forceReadOnly
-        if (nowReadOnly != readOnly) {
-            Constants.log.info("Address book now read-only = $nowReadOnly, updating contacts")
-
-            // update address book itself
-            readOnly = nowReadOnly
-
-            // update raw contacts
-            val rawContactValues = ContentValues(1)
-            rawContactValues.put(RawContacts.RAW_CONTACT_IS_READ_ONLY, if (nowReadOnly) 1 else 0)
-            provider!!.update(rawContactsSyncUri(), rawContactValues, null, null)
-
-            // update data rows
-            val dataValues = ContentValues(1)
-            dataValues.put(ContactsContract.Data.IS_READ_ONLY, if (nowReadOnly) 1 else 0)
-            provider!!.update(syncAdapterURI(ContactsContract.Data.CONTENT_URI), dataValues, null, null)
-
-            // update group rows
-            val groupValues = ContentValues(1)
-            groupValues.put(Groups.GROUP_IS_READ_ONLY, if (nowReadOnly) 1 else 0)
-            provider!!.update(groupsSyncUri(), groupValues, null, null)
-        }
-
-        // make sure it will still be synchronized when contacts are updated
-        updateSyncFrameworkSettings()
-    }
-
-    fun delete() {
-        val accountManager = AccountManager.get(context)
-        accountManager.removeAccount(account, null, null, null)
-    }
-
-
-    /**
-     * Updates the sync framework settings for this address book:
-     *
-     * - Contacts sync of this address book account shall be possible -> isSyncable = 1
-     * - When a contact is changed, a sync shall be initiated -> syncAutomatically = true
-     * - Remove unwanted sync framework periodic syncs created by setSyncAutomatically, as
-     * we use PeriodicSyncWorker for scheduled syncs
-     */
-    fun updateSyncFrameworkSettings() {
-        // Enable sync-ability
-        if (ContentResolver.getIsSyncable(account, ContactsContract.AUTHORITY) != 1)
-            ContentResolver.setIsSyncable(account, ContactsContract.AUTHORITY, 1)
-
-        // Enable content trigger
-        if (!ContentResolver.getSyncAutomatically(account, ContactsContract.AUTHORITY))
-            ContentResolver.setSyncAutomatically(account, ContactsContract.AUTHORITY, true)
-
-        // Remove periodic syncs (setSyncAutomatically also creates periodic syncs, which we don't want)
-        for (periodicSync in ContentResolver.getPeriodicSyncs(account, ContactsContract.AUTHORITY))
-            ContentResolver.removePeriodicSync(periodicSync.account, periodicSync.authority, periodicSync.extras)
-    }
-
-
-    /* operations on members (contacts/groups) */
-
-    override fun findByName(name: String): LocalAddress? {
-        val result = queryContacts("${AndroidContact.COLUMN_FILENAME}=?", arrayOf(name)).firstOrNull()
-        return if (includeGroups)
-            result ?: queryGroups("${AndroidGroup.COLUMN_FILENAME}=?", arrayOf(name)).firstOrNull()
-        else
-            result
-    }
-
-
-    /**
-     * Returns an array of local contacts/groups which have been deleted locally. (DELETED != 0).
-     * @throws RemoteException on content provider errors
-     */
-    override fun findDeleted() =
-            if (includeGroups)
-                findDeletedContacts() + findDeletedGroups()
-            else
-                findDeletedContacts()
-
-    fun findDeletedContacts() = queryContacts(RawContacts.DELETED, null)
-    fun findDeletedGroups() = queryGroups(Groups.DELETED, null)
-
-    /**
-     * Returns an array of local contacts/groups which have been changed locally (DIRTY != 0).
-     * @throws RemoteException on content provider errors
-     */
-    override fun findDirty() =
-            if (includeGroups)
-                findDirtyContacts() + findDirtyGroups()
-            else
-                findDirtyContacts()
-    fun findDirtyContacts() = queryContacts(RawContacts.DIRTY, null)
-    fun findDirtyGroups() = queryGroups(Groups.DIRTY, null)
-
-    override fun forgetETags() {
-        if (includeGroups) {
-            val values = ContentValues(1)
-            values.putNull(AndroidGroup.COLUMN_ETAG)
-            provider!!.update(groupsSyncUri(), values, null, null)
-        }
-        val values = ContentValues(1)
-        values.putNull(AndroidContact.COLUMN_ETAG)
-        provider!!.update(rawContactsSyncUri(), values, null, null)
-    }
-
-
-    fun getContactIdsByGroupMembership(groupId: Long): List<Long> {
-        val ids = LinkedList<Long>()
-        provider!!.query(syncAdapterURI(ContactsContract.Data.CONTENT_URI), arrayOf(GroupMembership.RAW_CONTACT_ID),
-            "(${GroupMembership.MIMETYPE}=? AND ${GroupMembership.GROUP_ROW_ID}=?)",
-            arrayOf(GroupMembership.CONTENT_ITEM_TYPE, groupId.toString()), null)?.use { cursor ->
-            while (cursor.moveToNext())
-                ids += cursor.getLong(0)
-        }
-        return ids
-    }
-
-    fun getContactUidFromId(contactId: Long): String? {
-        provider!!.query(rawContactsSyncUri(), arrayOf(AndroidContact.COLUMN_UID),
-            "${RawContacts._ID}=?", arrayOf(contactId.toString()), null)?.use { cursor ->
-            if (cursor.moveToNext())
-                return cursor.getString(0)
-        }
-        return null
-    }
-
-
-    /**
-     * Queries all contacts with DIRTY flag and checks whether their data checksum has changed, i.e.
-     * if they're "really dirty" (= data has changed, not only metadata, which is not hashed).
-     * The DIRTY flag is removed from contacts which are not "really dirty", i.e. from contacts
-     * whose contact data checksum has not changed.
-     * @return number of "really dirty" contacts
-     * @throws RemoteException on content provider errors
-     */
-    fun verifyDirty(): Int {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
-            throw IllegalStateException("verifyDirty() should not be called on Android != 7.0")
-
-        var reallyDirty = 0
-        for (contact in findDirtyContacts()) {
-            val lastHash = contact.getLastHashCode()
-            val currentHash = contact.dataHashCode()
-            if (lastHash == currentHash) {
-                // hash is code still the same, contact is not "really dirty" (only metadata been have changed)
-                Logger.log.log(Level.FINE, "Contact data hash has not changed, resetting dirty flag", contact)
-                contact.resetDirty()
-            } else {
-                Logger.log.log(Level.FINE, "Contact data has changed from hash $lastHash to $currentHash", contact)
-                reallyDirty++
-            }
-        }
-
-        if (includeGroups)
-            reallyDirty += findDirtyGroups().size
-
-        return reallyDirty
-    }
-
-
-    /* special group operations */
-
-    /**
-     * Finds the first group with the given title. If there is no group with this
-     * title, a new group is created.
-     * @param title title of the group to look for
-     * @return id of the group with given title
-     * @throws RemoteException on content provider errors
-     */
-    fun findOrCreateGroup(title: String): Long {
-        provider!!.query(syncAdapterURI(Groups.CONTENT_URI), arrayOf(Groups._ID),
-                "${Groups.TITLE}=?", arrayOf(title), null)?.use { cursor ->
-            if (cursor.moveToNext())
-                return cursor.getLong(0)
-        }
-
-        val values = ContentValues(1)
-        values.put(Groups.TITLE, title)
-        val uri = provider!!.insert(syncAdapterURI(Groups.CONTENT_URI), values) ?: throw RemoteException("Couldn't create contact group")
-        return ContentUris.parseId(uri)
-    }
-
-    fun removeEmptyGroups() {
-        // find groups without members
-        /** should be done using {@link Groups.SUMMARY_COUNT}, but it's not implemented in Android yet */
-        queryGroups(null, null).filter { it.getMembers().isEmpty() }.forEach { group ->
-            Logger.log.log(Level.FINE, "Deleting group", group)
-            group.delete()
-        }
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/resource/LocalCalendar.kt

@@ -1,295 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.accounts.Account
-import android.content.ContentProviderClient
-import android.content.ContentUris
-import android.content.ContentValues
-import android.net.Uri
-import android.provider.CalendarContract.Calendars
-import android.provider.CalendarContract.Events
-import at.bitfire.davdroid.Constants
-import at.bitfire.davdroid.db.Collection
-import at.bitfire.davdroid.db.SyncState
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.util.DavUtils
-import at.bitfire.ical4android.AndroidCalendar
-import at.bitfire.ical4android.AndroidCalendarFactory
-import at.bitfire.ical4android.BatchOperation
-import at.bitfire.ical4android.util.DateUtils
-import at.bitfire.ical4android.util.MiscUtils.asSyncAdapter
-import java.util.LinkedList
-import java.util.logging.Level
-
-class LocalCalendar private constructor(
-        account: Account,
-        provider: ContentProviderClient,
-        id: Long
-): AndroidCalendar<LocalEvent>(account, provider, LocalEvent.Factory, id), LocalCollection<LocalEvent> {
-
-    companion object {
-
-        private const val COLUMN_SYNC_STATE = Calendars.CAL_SYNC1
-
-        fun create(account: Account, provider: ContentProviderClient, info: Collection): Uri {
-            val values = valuesFromCollectionInfo(info, true)
-
-            // ACCOUNT_NAME and ACCOUNT_TYPE are required (see docs)! If it's missing, other apps will crash.
-            values.put(Calendars.ACCOUNT_NAME, account.name)
-            values.put(Calendars.ACCOUNT_TYPE, account.type)
-
-            // Email address for scheduling. Used by the calendar provider to determine whether the
-            // user is ORGANIZER/ATTENDEE for a certain event.
-            values.put(Calendars.OWNER_ACCOUNT, account.name)
-
-            // flag as visible & synchronizable at creation, might be changed by user at any time
-            values.put(Calendars.VISIBLE, 1)
-            values.put(Calendars.SYNC_EVENTS, 1)
-            return create(account, provider, values)
-        }
-
-        private fun valuesFromCollectionInfo(info: Collection, withColor: Boolean): ContentValues {
-            val values = ContentValues()
-            values.put(Calendars.NAME, info.url.toString())
-            values.put(Calendars.CALENDAR_DISPLAY_NAME, if (info.displayName.isNullOrBlank()) DavUtils.lastSegmentOfUrl(info.url) else info.displayName)
-
-            if (withColor)
-                values.put(Calendars.CALENDAR_COLOR, info.color ?: Constants.DAVDROID_GREEN_RGBA)
-
-            if (info.privWriteContent && !info.forceReadOnly) {
-                values.put(Calendars.CALENDAR_ACCESS_LEVEL, Calendars.CAL_ACCESS_OWNER)
-                values.put(Calendars.CAN_MODIFY_TIME_ZONE, 1)
-                values.put(Calendars.CAN_ORGANIZER_RESPOND, 1)
-            } else
-                values.put(Calendars.CALENDAR_ACCESS_LEVEL, Calendars.CAL_ACCESS_READ)
-
-            info.timezone?.let { tzData ->
-                try {
-                    val timeZone = DateUtils.parseVTimeZone(tzData)
-                    timeZone.timeZoneId?.let { tzId ->
-                        values.put(Calendars.CALENDAR_TIME_ZONE, DateUtils.findAndroidTimezoneID(tzId.value))
-                    }
-                } catch(e: IllegalArgumentException) {
-                    Logger.log.log(Level.WARNING, "Couldn't parse calendar default time zone", e)
-                }
-            }
-
-            // add base values for Calendars
-            values.putAll(calendarBaseValues)
-
-            return values
-        }
-
-    }
-
-    override val tag: String
-        get() = "events-${account.name}-$id"
-
-    override val title: String
-        get() = displayName ?: id.toString()
-
-    private var accessLevel: Int = Calendars.CAL_ACCESS_OWNER   // assume full access if not specified
-    override val readOnly
-        get() = accessLevel <= Calendars.CAL_ACCESS_READ
-
-    override var lastSyncState: SyncState?
-        get() = provider.query(calendarSyncURI(), arrayOf(COLUMN_SYNC_STATE), null, null, null)?.use { cursor ->
-                    if (cursor.moveToNext())
-                        return SyncState.fromString(cursor.getString(0))
-                    else
-                        null
-                }
-        set(state) {
-            val values = ContentValues(1)
-            values.put(COLUMN_SYNC_STATE, state.toString())
-            provider.update(calendarSyncURI(), values, null, null)
-        }
-
-
-    override fun populate(info: ContentValues) {
-        super.populate(info)
-        accessLevel = info.getAsInteger(Calendars.CALENDAR_ACCESS_LEVEL) ?: Calendars.CAL_ACCESS_OWNER
-    }
-
-    fun update(info: Collection, updateColor: Boolean) =
-            update(valuesFromCollectionInfo(info, updateColor))
-
-
-    override fun findDeleted() =
-            queryEvents("${Events.DELETED} AND ${Events.ORIGINAL_ID} IS NULL", null)
-
-    override fun findDirty(): List<LocalEvent> {
-        val dirty = LinkedList<LocalEvent>()
-
-        /*
-         * RFC 5545 3.8.7.4. Sequence Number
-         * When a calendar component is created, its sequence number is 0. It is monotonically incremented by the "Organizer's"
-         * CUA each time the "Organizer" makes a significant revision to the calendar component.
-         */
-        for (localEvent in queryEvents("${Events.DIRTY} AND ${Events.ORIGINAL_ID} IS NULL", null)) {
-            try {
-                val event = requireNotNull(localEvent.event)
-
-                val nonGroupScheduled = event.attendees.isEmpty()
-                val weAreOrganizer = localEvent.weAreOrganizer
-
-                val sequence = event.sequence
-                if (sequence == null)
-                    // sequence has not been assigned yet (i.e. this event was just locally created)
-                    event.sequence = 0
-                else if (nonGroupScheduled || weAreOrganizer)   // increase sequence
-                    event.sequence = sequence + 1
-
-            } catch(e: Exception) {
-                Logger.log.log(Level.WARNING, "Couldn't check/increase sequence", e)
-            }
-            dirty += localEvent
-        }
-
-        return dirty
-    }
-
-    override fun findByName(name: String) =
-            queryEvents("${Events._SYNC_ID}=?", arrayOf(name)).firstOrNull()
-
-
-    override fun markNotDirty(flags: Int): Int {
-        val values = ContentValues(1)
-        values.put(LocalEvent.COLUMN_FLAGS, flags)
-        return provider.update(Events.CONTENT_URI.asSyncAdapter(account), values,
-                "${Events.CALENDAR_ID}=? AND NOT ${Events.DIRTY} AND ${Events.ORIGINAL_ID} IS NULL",
-                arrayOf(id.toString()))
-    }
-
-    override fun removeNotDirtyMarked(flags: Int): Int {
-        var deleted = 0
-        // list all non-dirty events with the given flags and delete every row + its exceptions
-        provider.query(Events.CONTENT_URI.asSyncAdapter(account), arrayOf(Events._ID),
-                "${Events.CALENDAR_ID}=? AND NOT ${Events.DIRTY} AND ${Events.ORIGINAL_ID} IS NULL AND ${LocalEvent.COLUMN_FLAGS}=?",
-                arrayOf(id.toString(), flags.toString()), null)?.use { cursor ->
-            val batch = BatchOperation(provider)
-            while (cursor.moveToNext()) {
-                val id = cursor.getLong(0)
-                // delete event and possible exceptions (content provider doesn't delete exceptions itself)
-                batch.enqueue(BatchOperation.CpoBuilder
-                        .newDelete(Events.CONTENT_URI.asSyncAdapter(account))
-                        .withSelection("${Events._ID}=? OR ${Events.ORIGINAL_ID}=?", arrayOf(id.toString(), id.toString())))
-            }
-            deleted = batch.commit()
-        }
-        return deleted
-    }
-
-    override fun forgetETags() {
-        val values = ContentValues(1)
-        values.putNull(LocalEvent.COLUMN_ETAG)
-        provider.update(Events.CONTENT_URI.asSyncAdapter(account), values, "${Events.CALENDAR_ID}=?",
-                arrayOf(id.toString()))
-    }
-
-
-    fun processDirtyExceptions() {
-        // process deleted exceptions
-        Logger.log.info("Processing deleted exceptions")
-        provider.query(
-                Events.CONTENT_URI.asSyncAdapter(account),
-                arrayOf(Events._ID, Events.ORIGINAL_ID, LocalEvent.COLUMN_SEQUENCE),
-                "${Events.CALENDAR_ID}=? AND ${Events.DELETED} AND ${Events.ORIGINAL_ID} IS NOT NULL",
-                arrayOf(id.toString()), null)?.use { cursor ->
-            while (cursor.moveToNext()) {
-                Logger.log.fine("Found deleted exception, removing and re-scheduling original event (if available)")
-                val id = cursor.getLong(0)             // can't be null (by definition)
-                val originalID = cursor.getLong(1)     // can't be null (by query)
-
-                val batch = BatchOperation(provider)
-
-                // get original event's SEQUENCE
-                provider.query(
-                        ContentUris.withAppendedId(Events.CONTENT_URI, originalID).asSyncAdapter(account),
-                        arrayOf(LocalEvent.COLUMN_SEQUENCE),
-                        null, null, null)?.use { cursor2 ->
-                    if (cursor2.moveToNext()) {
-                        // original event is available
-                        val originalSequence = if (cursor2.isNull(0)) 0 else cursor2.getInt(0)
-
-                        // re-schedule original event and set it to DIRTY
-                        batch.enqueue(BatchOperation.CpoBuilder
-                                .newUpdate(ContentUris.withAppendedId(Events.CONTENT_URI, originalID).asSyncAdapter(account))
-                                .withValue(LocalEvent.COLUMN_SEQUENCE, originalSequence + 1)
-                                .withValue(Events.DIRTY, 1))
-                    }
-                }
-
-                // completely remove deleted exception
-                batch.enqueue(BatchOperation.CpoBuilder.newDelete(ContentUris.withAppendedId(Events.CONTENT_URI, id).asSyncAdapter(account)))
-                batch.commit()
-            }
-        }
-
-        // process dirty exceptions
-        Logger.log.info("Processing dirty exceptions")
-        provider.query(
-                Events.CONTENT_URI.asSyncAdapter(account),
-                arrayOf(Events._ID, Events.ORIGINAL_ID, LocalEvent.COLUMN_SEQUENCE),
-                "${Events.CALENDAR_ID}=? AND ${Events.DIRTY} AND ${Events.ORIGINAL_ID} IS NOT NULL",
-                arrayOf(id.toString()), null)?.use { cursor ->
-            while (cursor.moveToNext()) {
-                Logger.log.fine("Found dirty exception, increasing SEQUENCE to re-schedule")
-                val id = cursor.getLong(0)             // can't be null (by definition)
-                val originalID = cursor.getLong(1)     // can't be null (by query)
-                val sequence = if (cursor.isNull(2)) 0 else cursor.getInt(2)
-
-                val batch = BatchOperation(provider)
-                // original event to DIRTY
-                batch.enqueue(BatchOperation.CpoBuilder
-                        .newUpdate(ContentUris.withAppendedId(Events.CONTENT_URI, originalID).asSyncAdapter(account))
-                        .withValue(Events.DIRTY, 1))
-                // increase SEQUENCE and set DIRTY to 0
-                batch.enqueue(BatchOperation.CpoBuilder
-                        .newUpdate(ContentUris.withAppendedId(Events.CONTENT_URI, id).asSyncAdapter(account))
-                        .withValue(LocalEvent.COLUMN_SEQUENCE, sequence + 1)
-                        .withValue(Events.DIRTY, 0))
-                batch.commit()
-            }
-        }
-    }
-
-    /**
-     * Marks dirty events (which are not already marked as deleted) which got no valid instances as "deleted"
-     *
-     * @return number of affected events
-     */
-    fun deleteDirtyEventsWithoutInstances() {
-        provider.query(
-            Events.CONTENT_URI.asSyncAdapter(account),
-            arrayOf(Events._ID),
-            "${Events.DIRTY} AND NOT ${Events.DELETED} AND ${Events.ORIGINAL_ID} IS NULL",    // Get dirty main events (and no exception events)
-            null, null
-        )?.use { cursor ->
-            while (cursor.moveToNext()) {
-                val eventID = cursor.getLong(0)
-
-                // get number of instances
-                val numEventInstances = LocalEvent.numInstances(provider, account, eventID)
-
-                // delete event if there are no instances
-                if (numEventInstances == 0) {
-                    Logger.log.info("Marking event #$eventID without instances as deleted")
-                    LocalEvent.markAsDeleted(provider, account, eventID)
-                }
-            }
-        }
-    }
-
-
-    object Factory: AndroidCalendarFactory<LocalCalendar> {
-
-        override fun newInstance(account: Account, provider: ContentProviderClient, id: Long) =
-            LocalCalendar(account, provider, id)
-
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/resource/LocalContact.kt

@@ -1,251 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.content.ContentValues
-import android.os.Build
-import android.os.RemoteException
-import android.provider.ContactsContract
-import android.provider.ContactsContract.CommonDataKinds.GroupMembership
-import android.provider.ContactsContract.RawContacts.Data
-import at.bitfire.davdroid.BuildConfig
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.resource.contactrow.CachedGroupMembershipHandler
-import at.bitfire.davdroid.resource.contactrow.GroupMembershipBuilder
-import at.bitfire.davdroid.resource.contactrow.GroupMembershipHandler
-import at.bitfire.davdroid.resource.contactrow.UnknownPropertiesBuilder
-import at.bitfire.davdroid.resource.contactrow.UnknownPropertiesHandler
-import at.bitfire.vcard4android.AndroidAddressBook
-import at.bitfire.vcard4android.AndroidContact
-import at.bitfire.vcard4android.AndroidContactFactory
-import at.bitfire.vcard4android.BatchOperation
-import at.bitfire.vcard4android.CachedGroupMembership
-import at.bitfire.vcard4android.Contact
-import ezvcard.Ezvcard
-import org.apache.commons.lang3.StringUtils
-import java.io.FileNotFoundException
-import java.util.UUID
-
-class LocalContact: AndroidContact, LocalAddress {
-
-    override val addressBook: LocalAddressBook
-        get() = super.addressBook as LocalAddressBook
-
-    companion object {
-        init {
-            Contact.productID = "+//IDN bitfire.at//${BuildConfig.userAgent}/${BuildConfig.VERSION_NAME} ez-vcard/" + Ezvcard.VERSION
-        }
-
-        const val COLUMN_FLAGS = ContactsContract.RawContacts.SYNC4
-        const val COLUMN_HASHCODE = ContactsContract.RawContacts.SYNC3
-    }
-
-    internal val cachedGroupMemberships = HashSet<Long>()
-    internal val groupMemberships = HashSet<Long>()
-
-    override var scheduleTag: String?
-        get() = null
-        set(_) = throw NotImplementedError()
-
-    override var flags: Int = 0
-
-
-    constructor(addressBook: LocalAddressBook, values: ContentValues): super(addressBook, values) {
-        flags = values.getAsInteger(COLUMN_FLAGS) ?: 0
-    }
-
-    constructor(addressBook: LocalAddressBook, contact: Contact, fileName: String?, eTag: String?, _flags: Int): super(addressBook, contact, fileName, eTag) {
-        flags = _flags
-    }
-
-    init {
-        processor.registerHandler(CachedGroupMembershipHandler(this))
-        processor.registerHandler(GroupMembershipHandler(this))
-        processor.registerHandler(UnknownPropertiesHandler)
-        processor.registerBuilderFactory(GroupMembershipBuilder.Factory(addressBook))
-        processor.registerBuilderFactory(UnknownPropertiesBuilder.Factory)
-    }
-
-
-    override fun prepareForUpload(): String {
-        val contact = getContact()
-        val uid: String = contact.uid ?: run {
-            // generate new UID
-            val newUid = UUID.randomUUID().toString()
-
-            // update in contacts provider
-            val values = ContentValues(1)
-            values.put(COLUMN_UID, newUid)
-            addressBook.provider!!.update(rawContactSyncURI(), values, null, null)
-
-            // update this event
-            contact.uid = newUid
-
-            newUid
-        }
-
-        return "$uid.vcf"
-    }
-
-    override fun clearDirty(fileName: String?, eTag: String?, scheduleTag: String?) {
-        if (scheduleTag != null)
-            throw IllegalArgumentException("Contacts must not have a Schedule-Tag")
-
-        val values = ContentValues(4)
-        if (fileName != null)
-            values.put(COLUMN_FILENAME, fileName)
-        values.put(COLUMN_ETAG, eTag)
-        values.put(ContactsContract.RawContacts.DIRTY, 0)
-
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-            // workaround for Android 7 which sets DIRTY flag when only meta-data is changed
-            val hashCode = dataHashCode()
-            values.put(COLUMN_HASHCODE, hashCode)
-            Logger.log.finer("Clearing dirty flag with eTag = $eTag, contact hash = $hashCode")
-        }
-
-        addressBook.provider!!.update(rawContactSyncURI(), values, null, null)
-
-        if (fileName != null)
-            this.fileName = fileName
-        this.eTag = eTag
-    }
-
-    override fun resetDeleted() {
-        val values = ContentValues(1)
-        values.put(ContactsContract.Groups.DELETED, 0)
-        addressBook.provider!!.update(rawContactSyncURI(), values, null, null)
-    }
-
-    fun resetDirty() {
-        val values = ContentValues(1)
-        values.put(ContactsContract.RawContacts.DIRTY, 0)
-        addressBook.provider!!.update(rawContactSyncURI(), values, null, null)
-    }
-
-    override fun updateFlags(flags: Int) {
-        val values = ContentValues(1)
-        values.put(COLUMN_FLAGS, flags)
-        addressBook.provider!!.update(rawContactSyncURI(), values, null, null)
-
-        this.flags = flags
-    }
-
-
-    /**
-     * Calculates a hash code from the contact's data (VCard) and group memberships.
-     * Attention: re-reads {@link #contact} from the database, discarding all changes in memory
-     * @return hash code of contact data (including group memberships)
-     */
-    internal fun dataHashCode(): Int {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
-            throw IllegalStateException("dataHashCode() should not be called on Android != 7")
-
-        // reset contact so that getContact() reads from database
-        _contact = null
-
-        // groupMemberships is filled by getContact()
-        val dataHash = getContact().hashCode()
-        val groupHash = groupMemberships.hashCode()
-        Logger.log.finest("Calculated data hash = $dataHash, group memberships hash = $groupHash")
-        return dataHash xor groupHash
-    }
-
-    fun updateHashCode(batch: BatchOperation?) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
-            throw IllegalStateException("updateHashCode() should not be called on Android != 7")
-
-        val hashCode = dataHashCode()
-        Logger.log.fine("Storing contact hash = $hashCode")
-
-        if (batch == null) {
-            val values = ContentValues(1)
-            values.put(COLUMN_HASHCODE, hashCode)
-            addressBook.provider!!.update(rawContactSyncURI(), values, null, null)
-        } else
-            batch.enqueue(BatchOperation.CpoBuilder
-                    .newUpdate(rawContactSyncURI())
-                    .withValue(COLUMN_HASHCODE, hashCode))
-    }
-
-    fun getLastHashCode(): Int {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
-            throw IllegalStateException("getLastHashCode() should not be called on Android != 7")
-
-        addressBook.provider!!.query(rawContactSyncURI(), arrayOf(COLUMN_HASHCODE), null, null, null)?.use { c ->
-            if (c.moveToNext() && !c.isNull(0))
-                return c.getInt(0)
-        }
-        return 0
-    }
-
-
-    fun addToGroup(batch: BatchOperation, groupID: Long) {
-        batch.enqueue(BatchOperation.CpoBuilder
-                .newInsert(dataSyncURI())
-                .withValue(GroupMembership.MIMETYPE, GroupMembership.CONTENT_ITEM_TYPE)
-                .withValue(GroupMembership.RAW_CONTACT_ID, id)
-                .withValue(GroupMembership.GROUP_ROW_ID, groupID))
-        groupMemberships += groupID
-
-        batch.enqueue(BatchOperation.CpoBuilder
-                .newInsert(dataSyncURI())
-                .withValue(CachedGroupMembership.MIMETYPE, CachedGroupMembership.CONTENT_ITEM_TYPE)
-                .withValue(CachedGroupMembership.RAW_CONTACT_ID, id)
-                .withValue(CachedGroupMembership.GROUP_ID, groupID)
-        )
-        cachedGroupMemberships += groupID
-    }
-
-    fun removeGroupMemberships(batch: BatchOperation) {
-        batch.enqueue(BatchOperation.CpoBuilder
-                .newDelete(dataSyncURI())
-                .withSelection(
-                        "${Data.RAW_CONTACT_ID}=? AND ${Data.MIMETYPE} IN (?,?)",
-                        arrayOf(id.toString(), GroupMembership.CONTENT_ITEM_TYPE, CachedGroupMembership.CONTENT_ITEM_TYPE)
-                ))
-        groupMemberships.clear()
-        cachedGroupMemberships.clear()
-    }
-
-    /**
-     * Returns the IDs of all groups the contact was member of (cached memberships).
-     * Cached memberships are kept in sync with memberships by DAVx5 and are used to determine
-     * whether a membership has been deleted/added when a raw contact is dirty.
-     * @return set of {@link GroupMembership#GROUP_ROW_ID} (may be empty)
-     * @throws FileNotFoundException if the current contact can't be found
-     * @throws RemoteException on contacts provider errors
-     */
-    fun getCachedGroupMemberships(): Set<Long> {
-        getContact()
-        return cachedGroupMemberships
-    }
-
-    /**
-     * Returns the IDs of all groups the contact is member of.
-     * @return set of {@link GroupMembership#GROUP_ROW_ID}s (may be empty)
-     * @throws FileNotFoundException if the current contact can't be found
-     * @throws RemoteException on contacts provider errors
-     */
-    fun getGroupMemberships(): Set<Long> {
-        getContact()
-        return groupMemberships
-    }
-
-
-    // data rows
-    override fun buildContact(builder: BatchOperation.CpoBuilder, update: Boolean) {
-        builder.withValue(COLUMN_FLAGS, flags)
-        super.buildContact(builder, update)
-    }
-
-    // factory
-
-    object Factory: AndroidContactFactory<LocalContact> {
-        override fun fromProvider(addressBook: AndroidAddressBook<LocalContact, *>, values: ContentValues) =
-                LocalContact(addressBook as LocalAddressBook, values)
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/resource/LocalEvent.kt

@@ -1,270 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.accounts.Account
-import android.content.ContentProviderClient
-import android.content.ContentUris
-import android.content.ContentValues
-import android.provider.CalendarContract
-import android.provider.CalendarContract.Events
-import at.bitfire.davdroid.BuildConfig
-import at.bitfire.ical4android.AndroidCalendar
-import at.bitfire.ical4android.AndroidEvent
-import at.bitfire.ical4android.AndroidEventFactory
-import at.bitfire.ical4android.BatchOperation
-import at.bitfire.ical4android.Event
-import at.bitfire.ical4android.ICalendar
-import at.bitfire.ical4android.Ical4Android
-import at.bitfire.ical4android.util.MiscUtils.asSyncAdapter
-import net.fortuna.ical4j.model.property.ProdId
-import java.util.UUID
-class LocalEvent: AndroidEvent, LocalResource<Event> {
-
-    companion object {
-        init {
-            ICalendar.prodId = ProdId("${BuildConfig.userAgent}/${BuildConfig.VERSION_NAME} ical4j/" + Ical4Android.ical4jVersion)
-        }
-
-        const val COLUMN_ETAG = Events.SYNC_DATA1
-        const val COLUMN_FLAGS = Events.SYNC_DATA2
-        const val COLUMN_SEQUENCE = Events.SYNC_DATA3
-        const val COLUMN_SCHEDULE_TAG = Events.SYNC_DATA4
-
-        /**
-         * Marks the event as deleted
-         * @param eventID
-         */
-        fun markAsDeleted(provider: ContentProviderClient, account: Account, eventID: Long) {
-            provider.update(
-                ContentUris.withAppendedId(
-                    Events.CONTENT_URI,
-                    eventID
-                ).asSyncAdapter(account),
-                ContentValues(1).apply {
-                    put(Events.DELETED, 1)
-                },
-                null,null
-            )
-        }
-
-
-        /**
-         * Finds the amount of direct instances this event has (without exceptions); used by [numInstances]
-         * to find the number of instances of exceptions.
-         *
-         * The number of returned instances may vary with the Android version.
-         *
-         * @return number of direct event instances (not counting instances of exceptions); *null* if
-         * the number can't be determined or if the event has no last date (recurring event without last instance)
-         */
-        fun numDirectInstances(provider: ContentProviderClient, account: Account, eventID: Long): Int? {
-            // query event to get first and last instance
-            var first: Long? = null
-            var last: Long? = null
-            provider.query(
-                ContentUris.withAppendedId(
-                    Events.CONTENT_URI,
-                    eventID
-                ),
-                arrayOf(Events.DTSTART, Events.LAST_DATE), null, null, null
-            )?.use { cursor ->
-                cursor.moveToNext()
-                if (!cursor.isNull(0))
-                    first = cursor.getLong(0)
-                if (!cursor.isNull(1))
-                    last = cursor.getLong(1)
-            }
-            // if this event doesn't have a last occurence, it's endless and always has instances
-            if (first == null || last == null)
-                return null
-
-            /* We can't use Long.MIN_VALUE and Long.MAX_VALUE because Android generates the instances
-             on the fly and it doesn't accept those values. So we use the first/last actual occurence
-             of the event (calculated by Android). */
-            val instancesUri = CalendarContract.Instances.CONTENT_URI.asSyncAdapter(account)
-                .buildUpon()
-                .appendPath(first.toString())       // begin timestamp
-                .appendPath(last.toString())        // end timestamp
-                .build()
-
-            var numInstances = 0
-            provider.query(
-                instancesUri, null,
-                "${CalendarContract.Instances.EVENT_ID}=?", arrayOf(eventID.toString()),
-                null
-            )?.use { cursor ->
-                numInstances += cursor.count
-            }
-            return numInstances
-        }
-
-        /**
-         * Finds the total number of instances this event has (including instances of exceptions)
-         *
-         * The number of returned instances may vary with the Android version.
-         *
-         * @return number of direct event instances (not counting instances of exceptions); *null* if
-         * the number can't be determined or if the event has no last date (recurring event without last instance)
-         */
-        fun numInstances(provider: ContentProviderClient, account: Account, eventID: Long): Int? {
-            // num instances of the main event
-            var numInstances = numDirectInstances(provider, account, eventID) ?: return null
-
-            // add the number of instances of every main event's exception
-            provider.query(
-                Events.CONTENT_URI,
-                arrayOf(Events._ID),
-                "${Events.ORIGINAL_ID}=?", // get exception events of the main event
-                arrayOf("$eventID"), null
-            )?.use { exceptionsEventCursor ->
-                while (exceptionsEventCursor.moveToNext()) {
-                    val exceptionEventID = exceptionsEventCursor.getLong(0)
-                    val exceptionInstances = numDirectInstances(provider, account, exceptionEventID)
-
-                    if (exceptionInstances == null)
-                        // number of instances of exception can't be determined; so the total number of instances is also unclear
-                        return null
-
-                    numInstances += exceptionInstances
-                }
-            }
-            return numInstances
-        }
-
-    }
-
-    override var fileName: String? = null
-        private set
-
-    override var eTag: String? = null
-    override var scheduleTag: String? = null
-
-    override var flags: Int = 0
-        private set
-
-    var weAreOrganizer = false
-        private set
-
-
-    constructor(calendar: AndroidCalendar<*>, event: Event, fileName: String?, eTag: String?, scheduleTag: String?, flags: Int): super(calendar, event) {
-        this.fileName = fileName
-        this.eTag = eTag
-        this.scheduleTag = scheduleTag
-        this.flags = flags
-    }
-
-    private constructor(calendar: AndroidCalendar<*>, values: ContentValues): super(calendar, values) {
-        fileName = values.getAsString(Events._SYNC_ID)
-        eTag = values.getAsString(COLUMN_ETAG)
-        scheduleTag = values.getAsString(COLUMN_SCHEDULE_TAG)
-        flags = values.getAsInteger(COLUMN_FLAGS) ?: 0
-    }
-
-    override fun populateEvent(row: ContentValues, groupScheduled: Boolean) {
-        val event = requireNotNull(event)
-        event.sequence = row.getAsInteger(COLUMN_SEQUENCE)
-
-        val isOrganizer = row.getAsInteger(Events.IS_ORGANIZER)
-        weAreOrganizer = isOrganizer != null && isOrganizer != 0
-
-        super.populateEvent(row, groupScheduled)
-    }
-
-    override fun buildEvent(recurrence: Event?, builder: BatchOperation.CpoBuilder) {
-        val event = requireNotNull(event)
-
-        val buildException = recurrence != null
-        val eventToBuild = recurrence ?: event
-
-        builder .withValue(COLUMN_SEQUENCE, eventToBuild.sequence)
-                .withValue(Events.DIRTY, 0)
-                .withValue(Events.DELETED, 0)
-                .withValue(COLUMN_FLAGS, flags)
-
-        if (buildException)
-            builder .withValue(Events.ORIGINAL_SYNC_ID, fileName)
-        else
-            builder .withValue(Events._SYNC_ID, fileName)
-                    .withValue(COLUMN_ETAG, eTag)
-                    .withValue(COLUMN_SCHEDULE_TAG, scheduleTag)
-
-        super.buildEvent(recurrence, builder)
-    }
-
-
-    /**
-     * Creates and sets a new UID in the calendar provider, if no UID is already set.
-     * It also returns the desired file name for the event for further processing in the sync algorithm.
-     *
-     * @return file name to use at upload
-     */
-    override fun prepareForUpload(): String {
-        // make sure that UID is set
-        val uid: String = event!!.uid ?: run {
-            // generate new UID
-            val newUid = UUID.randomUUID().toString()
-
-            // update in calendar provider
-            val values = ContentValues(1)
-            values.put(Events.UID_2445, newUid)
-            calendar.provider.update(eventSyncURI(), values, null, null)
-
-            // update this event
-            event?.uid = newUid
-
-            newUid
-        }
-
-        val uidIsGoodFilename = uid.all { char ->
-            // see RFC 2396 2.2
-            char.isLetterOrDigit() || arrayOf(          // allow letters and digits
-                ';',':','@','&','=','+','$',',',        // allow reserved characters except '/' and '?'
-                '-','_','.','!','~','*','\'','(',')'    // allow unreserved characters
-            ).contains(char)
-        }
-        return if (uidIsGoodFilename)
-            "$uid.ics"                      // use UID as file name
-        else
-            "${UUID.randomUUID()}.ics"      // UID would be dangerous as file name, use random UUID instead
-    }
-
-
-    override fun clearDirty(fileName: String?, eTag: String?, scheduleTag: String?) {
-        val values = ContentValues(5)
-        if (fileName != null)
-            values.put(Events._SYNC_ID, fileName)
-        values.put(COLUMN_ETAG, eTag)
-        values.put(COLUMN_SCHEDULE_TAG, scheduleTag)
-        values.put(COLUMN_SEQUENCE, event!!.sequence)
-        values.put(Events.DIRTY, 0)
-        calendar.provider.update(eventSyncURI(), values, null, null)
-
-        if (fileName != null)
-            this.fileName = fileName
-        this.eTag = eTag
-        this.scheduleTag = scheduleTag
-    }
-
-    override fun updateFlags(flags: Int) {
-        val values = ContentValues(1)
-        values.put(COLUMN_FLAGS, flags)
-        calendar.provider.update(eventSyncURI(), values, null, null)
-
-        this.flags = flags
-    }
-
-    override fun resetDeleted() {
-        val values = ContentValues(1).apply { put(Events.DELETED, 0) }
-        calendar.provider.update(eventSyncURI(), values, null, null)
-    }
-
-    object Factory: AndroidEventFactory<LocalEvent> {
-        override fun fromProvider(calendar: AndroidCalendar<*>, values: ContentValues) =
-                LocalEvent(calendar, values)
-    }
-
-}
-

app/src/main/kotlin/at/bitfire/davdroid/resource/LocalJtxCollection.kt

@@ -1,111 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.accounts.Account
-import android.content.ContentProviderClient
-import android.content.ContentValues
-import at.bitfire.davdroid.Constants
-import at.bitfire.davdroid.db.Collection
-import at.bitfire.davdroid.db.Principal
-import at.bitfire.davdroid.db.SyncState
-import at.bitfire.davdroid.log.Logger
-import at.bitfire.davdroid.util.DavUtils
-import at.bitfire.ical4android.JtxCollection
-import at.bitfire.ical4android.JtxCollectionFactory
-import at.bitfire.ical4android.JtxICalObject
-import at.techbee.jtx.JtxContract
-import java.util.logging.Level
-
-class LocalJtxCollection(account: Account, client: ContentProviderClient, id: Long):
-    JtxCollection<JtxICalObject>(account, client, LocalJtxICalObject.Factory, id),
-    LocalCollection<LocalJtxICalObject>{
-
-    companion object {
-
-        fun create(account: Account, client: ContentProviderClient, info: Collection, owner: Principal?) {
-            val values = valuesFromCollection(info, account, owner, true)
-            create(account, client, values)
-        }
-
-        fun valuesFromCollection(info: Collection, account: Account, owner: Principal?, withColor: Boolean) =
-            ContentValues().apply {
-                put(JtxContract.JtxCollection.URL, info.url.toString())
-                put(JtxContract.JtxCollection.DISPLAYNAME, info.displayName ?: DavUtils.lastSegmentOfUrl(info.url))
-                put(JtxContract.JtxCollection.DESCRIPTION, info.description)
-                if (owner != null)
-                    put(JtxContract.JtxCollection.OWNER, owner.url.toString())
-                else Logger.log.log(Level.SEVERE, "No collection owner given. Will create jtx collection without owner")
-                put(JtxContract.JtxCollection.OWNER_DISPLAYNAME, owner?.displayName)
-                if (withColor)
-                    put(JtxContract.JtxCollection.COLOR, info.color ?: Constants.DAVDROID_GREEN_RGBA)
-                put(JtxContract.JtxCollection.SUPPORTSVEVENT, info.supportsVEVENT)
-                put(JtxContract.JtxCollection.SUPPORTSVJOURNAL, info.supportsVJOURNAL)
-                put(JtxContract.JtxCollection.SUPPORTSVTODO, info.supportsVTODO)
-                put(JtxContract.JtxCollection.ACCOUNT_NAME, account.name)
-                put(JtxContract.JtxCollection.ACCOUNT_TYPE, account.type)
-                put(JtxContract.JtxCollection.READONLY, info.forceReadOnly || !info.privWriteContent)
-            }
-    }
-
-    override val readOnly: Boolean
-        get() = throw NotImplementedError()
-
-    override val tag: String
-        get() =  "jtx-${account.name}-$id"
-    override val title: String
-        get() = displayname ?: id.toString()
-    override var lastSyncState: SyncState?
-        get() = SyncState.fromString(syncstate)
-        set(value) { syncstate = value.toString() }
-
-    fun updateCollection(info: Collection, owner: Principal?, withColor: Boolean) {
-        val values = valuesFromCollection(info, account, owner, withColor)
-        update(values)
-    }
-
-    override fun findDeleted(): List<LocalJtxICalObject> {
-        val values = queryDeletedICalObjects()
-        val localJtxICalObjects = mutableListOf<LocalJtxICalObject>()
-        values.forEach {
-            localJtxICalObjects.add(LocalJtxICalObject.Factory.fromProvider(this, it))
-        }
-        return localJtxICalObjects
-    }
-
-    override fun findDirty(): List<LocalJtxICalObject> {
-        val values = queryDirtyICalObjects()
-        val localJtxICalObjects = mutableListOf<LocalJtxICalObject>()
-        values.forEach {
-            localJtxICalObjects.add(LocalJtxICalObject.Factory.fromProvider(this, it))
-        }
-        return localJtxICalObjects
-    }
-
-    override fun findByName(name: String): LocalJtxICalObject? {
-        val values = queryByFilename(name) ?: return null
-        return LocalJtxICalObject.Factory.fromProvider(this, values)
-    }
-
-    /**
-     * Finds and returns a recurring instance of a [LocalJtxICalObject]
-     */
-    fun findRecurring(uid: String, recurid: String, dtstart: Long): LocalJtxICalObject? {
-        val values = queryRecur(uid, recurid, dtstart) ?: return null
-        return LocalJtxICalObject.Factory.fromProvider(this, values)
-    }
-
-    override fun markNotDirty(flags: Int)= updateSetFlags(flags)
-
-    override fun removeNotDirtyMarked(flags: Int) = deleteByFlags(flags)
-
-    override fun forgetETags() = updateSetETag(null)
-
-
-    object Factory: JtxCollectionFactory<LocalJtxCollection> {
-        override fun newInstance(account: Account, client: ContentProviderClient, id: Long) = LocalJtxCollection(account, client, id)
-    }
-
-}

app/src/main/kotlin/at/bitfire/davdroid/resource/LocalResource.kt

@@ -1,98 +0,0 @@
-/***************************************************************************************************
- * Copyright © All Contributors. See LICENSE and AUTHORS in the root directory for details.
- **************************************************************************************************/
-
-package at.bitfire.davdroid.resource
-
-import android.net.Uri
-
-interface LocalResource<in TData: Any> {
-
-    companion object {
-        /**
-         * Resource is present on remote server. This flag is used to identify resources
-         * which are not present on the remote server anymore and can be deleted at the end
-         * of the synchronization.
-         */
-        const val FLAG_REMOTELY_PRESENT = 1
-    }
-
-
-    /**
-     * Unique ID which identifies the resource in the local storage. May be null if the
-     * resource has not been saved yet.
-     */
-    val id: Long?
-
-    /**
-     * Remote file name for the resource, for instance `mycontact.vcf`. Also used to determine whether
-     * a dirty record has just been created (in this case, [fileName] is *null*) or modified
-     * (in this case, [fileName] is the remote file name).
-     */
-    val fileName: String?
-
-    /** remote ETag for the resource */
-    var eTag: String?
-
-    /** remote Schedule-Tag for the resource */
-    var scheduleTag: String?
-
-    /** bitfield of flags; currently either [FLAG_REMOTELY_PRESENT] or 0 */
-    val flags: Int
-
-    /**
-     * Prepares the resource for uploading:
-     *
-     *   1. If the resource doesn't have an UID yet, this method generates one and writes it to the content provider.
-     *   2. The new file name which can be used for the upload is derived from the UID and returned, but not
-     *   saved to the content provider. The sync manager is responsible for saving the file name that
-     *   was actually used.
-     *
-     * @return new file name of the resource (like "<uid>.vcf")
-     */
-    fun prepareForUpload(): String
-
-    /**
-     * Unsets the /dirty/ field of the resource. Typically used after successfully uploading a
-     * locally modified resource.
-     *
-     * @param fileName If this argument is not *null*, [LocalResource.fileName] will be set to its value.
-     * @param eTag ETag of the uploaded resource as returned by the server (null if the server didn't return one)
-     * @param scheduleTag CalDAV Schedule-Tag of the uploaded resource as returned by the server (null if not applicable or if the server didn't return one)
-     */
-    fun clearDirty(fileName: String?, eTag: String?, scheduleTag: String? = null)
-
-    /**
-     * Sets (local) flags of the resource. At the moment, the only allowed values are
-     * 0 and [FLAG_REMOTELY_PRESENT].
-     */
-    fun updateFlags(flags: Int)
-
-
-    /**
-     * Adds the data object to the content provider and ensures that the dirty flag is clear.
-     *
-     * @return content URI of the created row (e.g. event URI)
-     */
-    fun add(): Uri
-
-    /**
-     * Updates the data object in the content provider and ensures that the dirty flag is clear.
-     *
-     * @return content URI of the updated row (e.g. event URI)
-     */
-    fun update(data: TData): Uri
-
-    /**
-     * Deletes the data object from the content provider.
-     *
-     * @return number of affected rows
-     */
-    fun delete(): Int
-
-    /**
-     * Undoes deletion of the data object from the content provider.
-     */
-    fun resetDeleted()
-
-}