[feature] Check GitHub for updates

android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java

@@ -81,9 +81,9 @@ public static void registerWith(@NonNull FlutterEngine flutterEngine) {
       Log.e(TAG, "Error registering plugin local_image_provider, com.csdcorp.local_image_provider.LocalImageProviderPlugin", e);
     }
     try {
-      flutterEngine.getPlugins().add(new io.flutter.plugins.packageinfo.PackageInfoPlugin());
+      flutterEngine.getPlugins().add(new dev.fluttercommunity.plus.packageinfo.PackageInfoPlugin());
     } catch(Exception e) {
-      Log.e(TAG, "Error registering plugin package_info, io.flutter.plugins.packageinfo.PackageInfoPlugin", e);
+      Log.e(TAG, "Error registering plugin package_info_plus, dev.fluttercommunity.plus.packageinfo.PackageInfoPlugin", e);
     }
     try {
       flutterEngine.getPlugins().add(new io.flutter.plugins.pathprovider.PathProviderPlugin());

assets/translations/en.json

@@ -55,6 +55,7 @@
   "title-dialog-sync-interval": "Modify Sync Interval",
   "title-dialog-chat-with-user": "Chat with {}",
   "title-dialog-attempt-chat-with-user": "Try chatting with {}",
+  "title-dialog-remote-update": "New Syphon Update",
   "title-user-verification": "User verification",
   "title-confirm-password": "Confirm Password",
   "title-confirm-email": "Confirm Email",
@@ -239,6 +240,8 @@
   "list-item-advanced-settings-licenses": "Open Source Licenses",
   "list-item-advanced-settings-start-background": "Start Background Service",
   "list-item-advanced-settings-stop-background": "Stop All Services",
+  "list-item-advanced-settings-check-for-updates": "Check GitHub for Syphon updates",
+  "list-item-advanced-settings-check-for-updates-body": "Periodically check GitHub for new releases",
   "list-item-advanced-settings-test-notifications": "Test Notifications",
   "list-item-advanced-settings-test-sync-loop": "Test Background Sync Loop",
   "list-item-advanced-settings-force-function": "Force Function",
@@ -273,6 +276,7 @@
   "content-intro-section-three": "Both Matrix and {} are developed\nopenly by organizations and people,\nnot corporations",
   "content-intro-section-four": "By using {} and other Matrix clients,\nwe can make private messaging \naccessible to everyone",
   "content-captcha-warning": "Some Matrix servers require captcha confirmation provided by Google through reCAPTCHA. \n\nIf you'd prefer not to complete this captcha, you may need to go back to server select and choose a different server for account creation.",
+  "content-dialog-remote-update": "A new Syphon version was released under the version number {}. Do you want to download this update?",
   "content-dialog-devices-delete": "You will have to sign in again on these devices if you remove them.",
   "content-dialog-devices-key-export": "Are you sure you want to export this device's encryption key? It may make it available to others if you're not careful!",
   "content-dialog-device-rename": "Enter the new public display name for this device.",
@@ -368,4 +372,4 @@
   "tooltip-copy-message-content": "Copy Message Content",
   "tooltip-quote-and-reply": "Quote and Reply",
   "tooltip-share-chats": "Share Chats"
-}
+}

ios/Podfile.lock

@@ -78,7 +78,7 @@ PODS:
     - OLMKit/olmcpp (= 3.2.12)
   - OLMKit/olmc (3.2.12)
   - OLMKit/olmcpp (3.2.12)
-  - package_info (0.0.1):
+  - package_info_plus (0.4.5):
     - Flutter
   - path_provider_ios (0.0.1):
     - Flutter
@@ -130,7 +130,7 @@ DEPENDENCIES:
   - image_picker (from `.symlinks/plugins/image_picker/ios`)
   - local_image_provider (from `.symlinks/plugins/local_image_provider/ios`)
   - OLMKit
-  - package_info (from `.symlinks/plugins/package_info/ios`)
+  - package_info_plus (from `.symlinks/plugins/package_info_plus/ios`)
   - path_provider_ios (from `.symlinks/plugins/path_provider_ios/ios`)
   - permission_handler (from `.symlinks/plugins/permission_handler/ios`)
   - share_plus (from `.symlinks/plugins/share_plus/ios`)
@@ -181,8 +181,8 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/image_picker/ios"
   local_image_provider:
     :path: ".symlinks/plugins/local_image_provider/ios"
-  package_info:
-    :path: ".symlinks/plugins/package_info/ios"
+  package_info_plus:
+    :path: ".symlinks/plugins/package_info_plus/ios"
   path_provider_ios:
     :path: ".symlinks/plugins/path_provider_ios/ios"
   permission_handler:
@@ -223,7 +223,7 @@ SPEC CHECKSUMS:
   local_image_provider: 05b1af32561482c0ca5a440fbc7f489ad818c962
   Mantle: c5aa8794a29a022dfbbfc9799af95f477a69b62d
   OLMKit: da115f16582e47626616874e20f7bb92222c7a51
-  package_info: 873975fc26034f0b863a300ad47e7f1ac6c7ec62
+  package_info_plus: 6c92f08e1f853dc01228d6f553146438dafcd14e
   path_provider_ios: 14f3d2fd28c4fdb42f44e0f751d12861c43cee02
   permission_handler: ccb20a9fad0ee9b1314a52b70b76b473c5f8dab0
   ReachabilitySwift: 985039c6f7b23a1da463388634119492ff86c825

lib/global/libs/updater/update-check.dart

@@ -0,0 +1,80 @@
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import 'package:http/http.dart' as http;
+import 'package:package_info_plus/package_info_plus.dart';
+import 'package:syphon/global/https.dart';
+
+const String CHECK_TIMESTAMP_KEY = 'CHECKED_TIMESTAMP_KEY';
+const String MARKED_VERSION_KEY = 'DISMISS_VERSION_KEY';
+
+class UpdateChecker {
+  static var latestVersion;
+  static final latestBuildUri = Uri.https('github.com', 'syphon-org/syphon/releases/latest');
+
+  static markUpdated(int version) async {
+    final secureStorage = FlutterSecureStorage();
+    secureStorage.write(
+      key: MARKED_VERSION_KEY,
+      value: version.toString(),
+    );
+  }
+
+  static markDismissed(int version) async {
+    final secureStorage = FlutterSecureStorage();
+    secureStorage.write(
+      key: MARKED_VERSION_KEY,
+      value: version.toString(),
+    );
+  }
+
+  static markChecked() async {
+    final secureStorage = FlutterSecureStorage();
+    secureStorage.write(
+      key: CHECK_TIMESTAMP_KEY,
+      value: DateTime.now().add(Duration(hours: 24)).millisecondsSinceEpoch.toString(),
+    );
+  }
+
+  static checkHasUpdate() async {
+    final secureStorage = FlutterSecureStorage();
+
+    // Latest version acknowledge by the user
+    final markedVersionString = await secureStorage.read(key: MARKED_VERSION_KEY);
+    final markedVersion = int.parse(markedVersionString ?? '0');
+
+    // Last timestamp when we checked for an update
+    final checkTimestamp = await secureStorage.read(key: CHECK_TIMESTAMP_KEY);
+    final checkDateTime = DateTime.fromMillisecondsSinceEpoch(int.parse(checkTimestamp ?? '0'));
+
+    // Ignore if recently checked for an update and not enough time has passed
+    if (checkDateTime.isAfter(DateTime.now())) {
+      return;
+    }
+
+    final packageInfo = await PackageInfo.fromPlatform();
+    final currentVersion = int.parse(packageInfo.version.replaceAll('.', ''));
+
+    // Extract the build tag from the redirect
+    final request = http.Request('Get', latestBuildUri)..followRedirects = false;
+    final response = await httpClient.send(request);
+
+    if (!response.headers.containsKey('location')) {
+      return;
+    }
+
+    // Extract the tag
+    final redirectUri = Uri.parse(response.headers['location']!);
+    final remoteVersion = int.parse(redirectUri.pathSegments.last.replaceAll('.', ''));
+
+    // Mark that we've checked for the latest version
+    await markChecked();
+
+    // Ignore if user has already dismissed this update
+    if (remoteVersion <= markedVersion) {
+      return false;
+    }
+
+    latestVersion = remoteVersion;
+
+    return remoteVersion > currentVersion;
+  }
+}