* use uint8 for clarity
* unexport writeContentAsyncAndVerify
* fix typo in test function name
* remove commented interface functions
* use atomic.Int32
* cleanups in socket server activation test
* leverage stdlib's maps and slices packages
replace uses of `golang.org/x/exp/maps`
* nit: leverage `maps.Values`
- Fixes: #4257
- Fix: Handle case when the hash version is unset in the user profile
- Add tests for default password hash
- Fix failing authenticator test: When the password hashing version
is not set, then the default one is used, so verifying the password
works.
Refactor authenticator tests:
- Nit: rename test variable
- Check error when calling SetPassword
- Add comments for test cases
- Nit: user assert.Equal in verifyRepoAuthenticator
- Split repository authenticator tests to test invariants separately
Objectives:
- Facilitate the generation of valid password hashes that can be used with
the `server user --user-password` CLI command.
- Encapsulate implementation details of password hashing in
the `user` package.
Adds a new `server user hash-password` CLI command to generate the
hash from a supplied password.
Modifies the `server user set/add --user-password-hash` CLI command
to accept the password hash generated using the `hash-password`
command.
Adds `GetNewProfile(ctx, rep, username)` helper to move implementation
details to the `user` package.
Includes CLI and unit tests.
Cleans up and removes unused functions.
Rationale: this code path is primarily executed from the server. A
potential error, say from a corrupt, unsupported or otherwise invalid
user profile should not cause the server to panic (and crash).
It is possible for `computePasswordHash` to return an error, not just an
impossibility.
Test refactoring:
- use 'require' in user profile tests;
- move test case to TestBadPasswordHashVersion;
- update comments in test.
Motivation: avoid making accidental decisions based on all-zeros content
in the future.
While the dummy hash is a non-zero-value slice, that is it is non-empty
(thus not nil), it is still the default value produced by
`make([]byte, salt + hashLength)`, and it is possible to accidentally
compare and have a positive match against a newly initialized slice.
Code movement and simplification, no functional changes.
Objectives:
- Allow callers specifying the needed key (or hash) size, instead of
hard-coding it in the registered PBK derivers. Conceptually, the caller
needs to specify the key size, since that is a requirement of the
(encryption) algorithm being used in the caller. Now, the code changes
here do not result in any functional changes since the key size is
always 32 bytes.
- Remove a global definition for the default PB key deriver to use.
Instead, each of the 3 use case sets the default value.
Changes:
- `crypto.DeriveKeyFromPassword` now takes a key size.
- Adds new constants for the key sizes at the callers.
- Removes the global `crypto.MasterKeySize` const.
- Removes the global `crypto.DefaultKeyDerivationAlgorithm` const.
- Adds const for the default derivation algorithms for each use case.
- Adds a const for the salt length in the `internal/user` package, to ensure
the same salt length is used in both hash versions.
- Unexports various functions, variables and constants in the `internal/crypto`
& `internal/user` packages.
- Renames various constants for consistency.
- Removes unused functions and symbols.
- Renames files to be consistent and better reflect the structure of the code.
- Adds a couple of tests to ensure the const values are in sync and supported.
- Fixes a couple of typos
Followups to:
- #3725
- #3770
- #3779
- #3799
- #3816
The individual commits show the code transformations to simplify the
review of the changes.
Reverts to using the `PasswordHashVersion` in the user profile.
Adds a simple mechanism for translating between password hash
version and the corresponding password hashing algorithm (key
derivation algorithm).
* User profile add set cli changes
* Add additional test
* get salt length from key deriver
* Fixes for failing tests
* after shikhars review
* lint fixes
This simplifies use cases where we intend to replace a manifest uniquely
identified by a set of labels with another one as is the case for
policies.
This helped fix annoying test flake on Windows where the clock is not
guaranteed to move forward when read in quick succession.
This is now passing on Windows:
```
$ go test -timeout 1000s ./internal/server -run TestSourceRefreshesAfterPolicy -count=1000
```
* nit: replaced harcoded string constants with named constants
* acl: added management of ACL entries
* auth: implemented DefaultAuthorizer which uses ACLs if any entries are found in the system and falls back to LegacyAuthorizer if not
* cli: switch to DefaultAuthorizer when starting server
* cli: added ACL management
* server: refactored authenticator + added refresh
Authenticator is now an interface which also supports Refresh.
* authz: refactored authorizer to be an interface + added Refresh()
* server: refresh authentication and authorizer
* e2e tests for ACLs
* server: handling of SIGHUP to refresh authn/authz caches
* server: reorganized flags to specify auth options:
- removed '--allow-repository-users' - it's always on
- one of --without-password, --server-password or --random-password
can be specified to specify password for the UI user
- htpasswd-file - can be specified to provide password for UI or remote
users
* cli: moved 'kopia user' to 'kopia server user'
* server: allow all UI actions if no authenticator is set
* acl: removed priority until we have a better understood use case for it
* acl: added validation of allowed labels when adding ACL entries
* site: added docs for ACLs
* Added draft release notes for 0.8
* Moved some content to 'advanced' section.
* Added conceptual documentation for actions, caching and logging.
* Updated site footer.
* user: validate that usernames in repository are all-lowercase and user@hostname-without-domain
* user: relaxed validation to allow -, _ and . in username and hostname
* user: added user profile (username&password for authentication) and CRUD methods
* manifest: helpers for disambiguating manifest entries
* authn: added repository-based user authenticator
* cli: added commands to manipulate user accounts and passwords
* cli: added --allow-repository-users option to 'server start'
* Update cli/command_user_info.go
Co-authored-by: Julio López <julio+gh@kasten.io>
* Always return false when the user is not found.
