From 8637f8d2a16d2194a2942e3bb7f895f4f7137091 Mon Sep 17 00:00:00 2001
From: Sylvia van Os <sylvia@hackerchick.me>
Date: Mon, 9 Dec 2019 17:08:56 +0100
Subject: [PATCH] Initial pkpass support

---
 app/src/main/AndroidManifest.xml              | 12 ++++
 .../protect/card_locker/ImportURIHelper.java  |  2 +-
 .../card_locker/LoyaltyCardEditActivity.java  | 46 ++++++++++++--
 .../protect/card_locker/PkpassImporter.java   | 60 +++++++++++++++++++
 4 files changed, 115 insertions(+), 5 deletions(-)
 create mode 100644 app/src/main/java/protect/card_locker/PkpassImporter.java

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 7a0e0be6a..4058fa7f4 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -54,6 +54,18 @@
                     android:host="@string/intent_import_card_from_url_host"
                     android:pathPrefix="@string/intent_import_card_from_url_path_prefix" />
             </intent-filter>
+            <intent-filter android:label="@string/intent_import_card_from_url">
+                <action android:name="android.intent.action.VIEW"/>
+
+                <category android:name="android.intent.category.DEFAULT"/>
+                <!-- Accept pkpass files -->
+                <data android:mimeType="application/octet-stream"/>
+                <data android:mimeType="application/zip"/>
+                <data android:mimeType="application/vnd.apple.pkpass"/>
+                <data android:mimeType="application/pkpass"/>
+                <data android:mimeType="application/vndapplepkpass"/>
+                <data android:mimeType="application/vnd-com.apple.pkpass"/>
+            </intent-filter>
         </activity>
         <activity
             android:name=".BarcodeSelectorActivity"
diff --git a/app/src/main/java/protect/card_locker/ImportURIHelper.java b/app/src/main/java/protect/card_locker/ImportURIHelper.java
index d3133bcb3..2add3c855 100644
--- a/app/src/main/java/protect/card_locker/ImportURIHelper.java
+++ b/app/src/main/java/protect/card_locker/ImportURIHelper.java
@@ -25,7 +25,7 @@ public class ImportURIHelper {
         shareText = context.getResources().getString(R.string.intent_import_card_from_url_share_text);
     }
 
-    private boolean isImportUri(Uri uri) {
+    public boolean isImportUri(Uri uri) {
         return uri.getHost().equals(host) && uri.getPath().equals(path);
     }
 
diff --git a/app/src/main/java/protect/card_locker/LoyaltyCardEditActivity.java b/app/src/main/java/protect/card_locker/LoyaltyCardEditActivity.java
index 0d115c4a8..bfe046841 100644
--- a/app/src/main/java/protect/card_locker/LoyaltyCardEditActivity.java
+++ b/app/src/main/java/protect/card_locker/LoyaltyCardEditActivity.java
@@ -30,6 +30,9 @@ import com.google.zxing.integration.android.IntentResult;
 import com.jaredrummler.android.colorpicker.ColorPickerDialog;
 import com.jaredrummler.android.colorpicker.ColorPickerDialogListener;
 
+import org.json.JSONException;
+
+import java.io.IOException;
 import java.io.InvalidObjectException;
 
 public class LoyaltyCardEditActivity extends AppCompatActivity
@@ -58,23 +61,57 @@ public class LoyaltyCardEditActivity extends AppCompatActivity
     int loyaltyCardId;
     boolean updateLoyaltyCard;
     Uri importLoyaltyCardUri = null;
+    String importLoyaltyCardType = null;
     Integer headingColorValue = null;
     Integer headingStoreTextColorValue = null;
 
     DBHelper db;
     ImportURIHelper importUriHelper;
+    PkpassImporter pkpassImporter;
 
     private void extractIntentFields(Intent intent)
     {
         final Bundle b = intent.getExtras();
         loyaltyCardId = b != null ? b.getInt("id") : 0;
         updateLoyaltyCard = b != null && b.getBoolean("update", false);
+        importLoyaltyCardType = intent.getType();
         importLoyaltyCardUri = intent.getData();
 
         Log.d(TAG, "View activity: id=" + loyaltyCardId
                 + ", updateLoyaltyCard=" + Boolean.toString(updateLoyaltyCard));
     }
 
+    private LoyaltyCard importCard(String type, Uri uri)
+    {
+        // Pkpass
+        if(type != null && pkpassImporter.isPkpass(type))
+        {
+            try
+            {
+                return pkpassImporter.fromURI(uri);
+            }
+            catch (IOException | JSONException ex)
+            {
+                return null;
+            }
+        }
+
+        // Import URI
+        if(importUriHelper.isImportUri(uri))
+        {
+            try
+            {
+                return importUriHelper.parse(importLoyaltyCardUri);
+            }
+            catch (InvalidObjectException ex)
+            {
+                return null;
+            }
+        }
+
+        return null;
+    }
+
     @Override
     protected void onCreate(Bundle savedInstanceState)
     {
@@ -93,6 +130,7 @@ public class LoyaltyCardEditActivity extends AppCompatActivity
 
         db = new DBHelper(this);
         importUriHelper = new ImportURIHelper(this);
+        pkpassImporter = new PkpassImporter(this);
 
         storeFieldEdit = findViewById(R.id.storeNameEdit);
         noteFieldEdit = findViewById(R.id.noteEdit);
@@ -186,10 +224,10 @@ public class LoyaltyCardEditActivity extends AppCompatActivity
         else if(importLoyaltyCardUri != null)
         {
             // Try to parse
-            LoyaltyCard importCard;
-            try {
-                importCard = importUriHelper.parse(importLoyaltyCardUri);
-            } catch (InvalidObjectException ex) {
+            LoyaltyCard importCard = importCard(importLoyaltyCardType, importLoyaltyCardUri);
+
+            if(importCard == null)
+            {
                 Toast.makeText(this, R.string.failedParsingImportUriError, Toast.LENGTH_LONG).show();
                 finish();
                 return;
diff --git a/app/src/main/java/protect/card_locker/PkpassImporter.java b/app/src/main/java/protect/card_locker/PkpassImporter.java
new file mode 100644
index 000000000..6219dffb6
--- /dev/null
+++ b/app/src/main/java/protect/card_locker/PkpassImporter.java
@@ -0,0 +1,60 @@
+package protect.card_locker;
+
+import android.content.Context;
+import android.net.Uri;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+
+public class PkpassImporter {
+    Context context;
+
+    public PkpassImporter(Context context) {
+        this.context = context;
+    }
+
+    public boolean isPkpass(String type) {
+        return Arrays.asList("application/octet-stream", "application/zip", "application/vnd.apple.pkpass", "application/pkpass", "application/vndapplepkpass", "application/vnd-com.apple.pkpass").contains(type);
+    }
+
+    public LoyaltyCard fromURI(Uri uri) throws IOException, JSONException {
+        ZipInputStream zipInputStream = new ZipInputStream(context.getContentResolver().openInputStream(uri));
+
+        ZipEntry entry;
+
+        while((entry = zipInputStream.getNextEntry()) != null)
+        {
+            if(!entry.getName().equals("pass.json"))
+            {
+                continue;
+            }
+
+            StringBuilder sb = new StringBuilder();
+            for(int c = zipInputStream.read(); c != -1; c = zipInputStream.read())
+            {
+                sb.append((char) c);
+            }
+
+            String readData = sb.toString();
+
+            JSONObject json = new JSONObject(readData);
+
+            String store = json.getString("description");
+            // TODO: Note
+            String cardId = json.getJSONObject("barcode").getString("message");
+            String barcodeType = json.getJSONObject("barcode").getString("format").substring("PKBarcodeFormat".length());
+            if(barcodeType.equals("QR"))
+            {
+                barcodeType = "QR_CODE";
+            }
+            return new LoyaltyCard(-1, store, "", cardId, barcodeType, null, null);
+        }
+
+        return null;
+    }
+}