Load client certificate from local storage fails

[stedekay]

• [x] I have read the Get Started - Installation section
• [x] I have read and done the Get Started - Setup Android section
• [x] I have read and done the Get Started - Setup iOS section
• [x] I have already searched for the same problem

Environment

Technology	Version
Flutter version	2.10.1
Plugin version	5.3.2
Android version	11
iOS version
Xcode version

Device information: Pixel 4

Description

I try to load a client certificate which is stored in the FlutterSecureStorage:

return InAppWebView(
  initialUrlRequest:
      URLRequest(url: Uri.parse("<URL>")),
  onReceivedClientCertRequest: (InAppWebViewController controller,
      URLAuthenticationChallenge challenge) async {
    return ClientCertResponse(
        certificatePath: certPath,
        certificatePassword: certPassword,
        action: ClientCertResponseAction.PROCEED);
  }
);

Expected behavior: The client certificate is loaded correctly and the website loads as expected.

Current behavior: I get the following exception:

W[/System.err]()( 4107): java.io.FileNotFoundException: flutter_assets//data/user/0/com.example.test/app_flutter/cert/EXAMPLE00004.p12
W[/System.err]()( 4107): 	at android.content.res.AssetManager.nativeOpenAsset(Native Method)
W[/System.err]()( 4107): 	at android.content.res.AssetManager.open(AssetManager.java:874)
W[/System.err]()( 4107): 	at android.content.res.AssetManager.open(AssetManager.java:851)
W[/System.err]()( 4107): 	at com.pichillilorenzo.flutter_inappwebview.Util.getFileAsset(Util.java:83)
W[/System.err]()( 4107): 	at com.pichillilorenzo.flutter_inappwebview.Util.loadPrivateKeyAndCertificate(Util.java:139)
W[/System.err]()( 4107): 	at com.pichillilorenzo.flutter_inappwebview.in_app_webview.InAppWebViewClient$4.success(InAppWebViewClient.java:510)
W[/System.err]()( 4107): 	at io.flutter.plugin.common.MethodChannel$IncomingResultHandler.reply(MethodChannel.java:239)
W[/System.err]()( 4107): 	at io.flutter.embedding.engine.dart.DartMessenger.handlePlatformMessageResponse(DartMessenger.java:376)
W[/System.err]()( 4107): 	at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessageResponse(FlutterJNI.java:993)
W[/System.err]()( 4107): 	at android.os.MessageQueue.nativePollOnce(Native Method)
W[/System.err]()( 4107): 	at android.os.MessageQueue.next(MessageQueue.java:335)
W[/System.err]()( 4107): 	at android.os.Looper.loop(Looper.java:183)
W[/System.err]()( 4107): 	at android.app.ActivityThread.main(ActivityThread.java:7656)
W[/System.err]()( 4107): 	at java.lang.reflect.Method.invoke(Native Method)
W[/System.err]()( 4107): 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
W[/System.err]()( 4107): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)

The path (variable certPath) is: /data/user/0/com.example.test/app_flutter/cert/EXAMPLE00004.p12

I don't understand why the file path gets this flutter_assets/ as a prefix? Is it even possible to load the cert from the local storage?

[github-actions[bot]]

👋 @stedekay

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[akioyamamoto1977]

Faced to the same issue on Android and made a PR. https://github.com/pichillilorenzo/flutter_inappwebview/pull/1241

[pichillilorenzo]

Merged now