feat(app_check, windows): add support for AppCheck for Windows#18140
feat(app_check, windows): add support for AppCheck for Windows#18140
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…for Windows Extends the merged Windows App Check plugin (PR firebase#18140) with a custom provider backed by a server-minted token, closing the production gap that the Debug-only implementation left open. Architecture: the Firebase C++ SDK calls FlutterCustomAppCheckProvider::GetToken() when it needs a token. That method invokes FirebaseAppCheckFlutterApi::GetCustomToken() — a Pigeon FlutterApi channel (same bidirectional pattern as firebase_database transactions) — which calls into Dart. The Dart handler calls a Cloud Function (getWindowsAppCheckToken, enforceAppCheck:false) that mints a valid App Check token via the Firebase Admin SDK and returns it. The C++ side blocks with a mutex+cv until Dart responds, then completes the SDK callback with the token. The Firebase SDK automatically attaches the token to every Firestore request. Changes: - pigeons/messages.dart: add activateWindowsCustomProvider() to HostApi and add @FlutterApi() FirebaseAppCheckFlutterApi with getCustomToken() - messages.g.h/cpp: manually extend generated Pigeon code with the new HostApi method channel handler and the new FirebaseAppCheckFlutterApi C++ class - firebase_app_check_plugin.h/cpp: add FlutterCustomAppCheckProvider, FlutterCustomAppCheckProviderFactory, and ActivateWindowsCustomProvider() - windows_providers.dart: add WindowsCustomProvider class - method_channel_firebase_app_check.dart: call activateWindowsCustomProvider when WindowsCustomProvider is detected - Export WindowsCustomProvider and FirebaseAppCheckFlutterApi from the package
3 participants
Add support for Windows to the AppCheck plugin.
Migrating to Pigeon
closes: #18126