blaugold / iabtcf_consent_info

Flutter plugin for reading IAB TCF v2.0 user consent information, such as made available through CMP SDKs, like Funding Choices's User Messaging Platform (UMP).

iabtcf_consent_info

Monorepo for the iabtcf_consent_info flutter plugin.

iabtcf_consent_info's Issues

Expose all consent information defined in the TCF spec

Type cast exception in ConsentInfo.parseRawInfo

A wrong type cast from Null to int causes an exception in the ConsentInfo.parseRawInfo factory.

sdkVersion: rawInfo[_cmpSdkVersionKey] as int

It looks like it is thrown in this line.

Try-catch like below can't catch it and the app stops there, which is critical...

late final ConsentInfo? info;
try {
  info = await IabtcfConsentInfo.instance.currentConsentInfo();
} on Exception catch (e) {
  info = null;
}

I'm not 100% sure in what condition it occurs, but as far as I can see, there's no problem if a GDPR dialog is shown outside EEA using your "user_messaging_platform" plugin with the debug options (geography: DebugGeography.EEA, testDeviceIds: xxxxx) set, and the exception occurs when currentConsentInfo() is executed after the dialog is skipped without the debug options.

E/flutter (18850): [ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: type 'Null' is not a subtype of type 'int' in type cast
E/flutter (18850): #0      new ConsentInfo.parseRawInfo (package:iabtcf_consent_info/iabtcf_consent_info.dart:112:46)
E/flutter (18850): #1      IabtcfConsentInfo._onConsentInfoListen.<anonymous closure> (package:iabtcf_consent_info/iabtcf_consent_info.dart:206:31)
E/flutter (18850): #2      _MapStream._handleData (dart:async/stream_pipe.dart:213:31)
E/flutter (18850): #3      _ForwardingStreamSubscription._handleData (dart:async/stream_pipe.dart:153:13)
E/flutter (18850): #4      _rootRunUnary (dart:async/zone.dart:1362:47)
E/flutter (18850): #5      _CustomZone.runUnary (dart:async/zone.dart:1265:19)
E/flutter (18850): #6      _CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7)
E/flutter (18850): #7      _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11)
E/flutter (18850): #8      _BufferingStreamSubscription._add (dart:async/stream_impl.dart:271:7)
E/flutter (18850): #9      _ForwardingStreamSubscription._add (dart:async/stream_pipe.dart:123:11)
E/flutter (18850): #10     _MapStream._handleData (dart:async/stream_pipe.dart:218:10)
E/flutter (18850): #11     _ForwardingStreamSubscription._handleData (dart:async/stream_pipe.dart:153:13)
E/flutter (18850): #12     _rootRunUnary (dart:async/zone.dart:1362:47)
E/flutter (18850): #13     _CustomZone.runUnary (dart:async/zone.dart:1265:19)
E/flutter (18850): #14     _CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7)
E/flutter (18850): #15     _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:341:11)
E/flutter (18850): #16     _DelayedData.perform (dart:async/stream_impl.dart:591:14)
E/flutter (18850): #17     _StreamImplEvents.handleNext (dart:async/stream_impl.dart:706:11)
E/flutter (18850): #18     _PendingEvents.schedule.<anonymous closure> (dart:async/stream_impl.dart:663:7)
E/flutter (18850): #19     _rootRun (dart:async/zone.dart:1346:47)
E/flutter (18850): #20     _CustomZone.run (dart:async/zone.dart:1258:19)
E/flutter (18850): #21     _CustomZone.runGuarded (dart:async/zone.dart:1162:7)
E/flutter (18850): #22     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1202:23)
E/flutter (18850): #23     _rootRun (dart:async/zone.dart:1354:13)
E/flutter (18850): #24     _CustomZone.run (dart:async/zone.dart:1258:19)
E/flutter (18850): #25     _CustomZone.runGuarded (dart:async/zone.dart:1162:7)
E/flutter (18850): #26     _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:1202:23)
E/flutter (18850): #27     _microtaskLoop (dart:async/schedule_microtask.dart:40:21)
E/flutter (18850): #28     _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)
E/flutter (18850): 

Support macos platform

gdprApplies remains true after GDPR dialog is shown

gdprApplies in BasicConsentInfo returned by IabtcfConsentInfo.instance.currentConsentInfo() is false if a GDPR dialog has not been opened using package:google_mobile_ads or have been opened outside EEA without the setting of debugGeography: DebugGeography.debugGeographyEea. However, once the dialog is opened with the debug setting, gdprApplies remains true even if the dialog is reopened without the setting.

1. Dialog has not been opened yet
   • gdprApplies: false
2. Dialog was opened without debugGeographyEea
   • gdprApplies: false
3. Dialog was opened with debugGeographyEea
   • gdprApplies: true
4. Dialog was reopened without debugGeographyEea
   • gdprApplies: true

I'm not sure if it is a bug of this plugin or as per spec of the underlying SDK. Please just close this if it is expected behaviour.

Expose raw consent info

Add BasicConsentInfo.raw to allow access to the raw consent info, provided by the CMP SDK.

Error: The getter 'publisherConsents' isn't defined for the class 'BasicConsentInfo'

I can't seem to access publisherConsents in the return. I can print it but I can't access it? Any ideas? I'm using the demo code.

I'd like to create a wrapper that takes a widget, checks for consent and decides whether the it can load.

import 'package:flutter/material.dart';
import 'package:iabtcf_consent_info/iabtcf_consent_info.dart';

class ConsentGate extends StatefulWidget {
  const ConsentGate({Key? key, required this.child}) : super(key: key);

  final Widget child;

  @override
  State<ConsentGate> createState() => _ConsentGateState();
}

class _ConsentGateState extends State<ConsentGate> {
  BasicConsentInfo? consentInfo;

  @override
  void initState() {
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      consentInfo = await _getConsentInfo();
    });
    super.initState();
  }

  Future<BasicConsentInfo?> _getConsentInfo() async {
    BasicConsentInfo? consent =
        await IabtcfConsentInfo.instance.currentConsentInfo();

    setState(() {
      consentInfo = consent;
    });

    return consent;
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Text(consentInfo.toString());
  }
}

I'd like to have a conditional check in the build but I can't access the data. I can see the data being printed but I'm unsure how to access it.

consent info is now returning an invalid value

Sorry, relative beginner developer here but hopefully i can provide the info you need.

My implementation had been working fine... However a couple of days ago my calls retrieve .currencyConsentInfo() started failing due to an out of range error. I guess something about the values the google UMP outputs must have changed?

My Crashlytics report is below incase it helps.

/flutter (17455): ----------------FIREBASE CRASHLYTICS----------------
I/flutter (17455): RangeError (index): Invalid value: Not in inclusive range 0..9: 10
I/flutter (17455): #0 _Array.[] (dart:core-patch/array.dart:10:36)
I/flutter (17455): #1 _parseDataUsagePurposeBinaryString. (package:iabtcf_consent_info/iabtcf_consent_info.dart:290:45)
I/flutter (17455): #2 MappedListIterable.elementAt (dart:_internal/iterable.dart:415:31)
I/flutter (17455): #3 ListIterator.moveNext (dart:_internal/iterable.dart:344:26)
I/flutter (17455): #4 new _GrowableList._ofEfficientLengthIterable (dart:core-patch/growable_array.dart:189:27)
I/flutter (17455): #5 new _GrowableList.of (dart:core-patch/growable_array.dart:150:28)
I/flutter (17455): #6 new List.of (dart:core-patch/array_patch.dart:47:28)
I/flutter (17455): #7 ListIterable.toList (dart:_internal/iterable.dart:214:7)
I/flutter (17455): #8 _parseDataUsagePurposeBinaryString (package:iabtcf_consent_info/iabtcf_consent_info.dart:291:10)
I/flutter (17455): #9 _ValueExt.let (package:iabtcf_consent_info/iabtcf_consent_info.dart:345:35)
I/flutter (17455): #10 parseRawConsentInfo.parseDataUsagePurposes (package:iabtcf_consent_info/iabtcf_consent_info.dart:255:26)
I/flutter (17455): #11 parseRawConsentInfo (package:iabtcf_consent_info/iabtcf_consent_info.dart:263:22)
I/flutter (17455): #12 _Ma

IabtcfConsentInfoPlugin.sendConsentInfo

Do you know why and how to fix?

Version de l'OS : android13
Modèle : Samsung Galaxy S23

Fatal Exception: java.lang.NullPointerException:
       at com.terwesten.gabriel.iabtcf_consent_info.IabtcfConsentInfoPlugin.sendConsentInfo(IabtcfConsentInfoPlugin.java:18)
       at com.terwesten.gabriel.iabtcf_consent_info.IabtcfConsentInfoPlugin.sharedPreferencesListener$lambda$0(IabtcfConsentInfoPlugin.java:5)
       at android.app.SharedPreferencesImpl$EditorImpl.notifyListeners(SharedPreferencesImpl.java:637)
       at android.app.SharedPreferencesImpl$EditorImpl.lambda$notifyListeners$0$SharedPreferencesImpl$EditorImpl(SharedPreferencesImpl.java:643)
       at android.app.-$$Lambda$SharedPreferencesImpl$EditorImpl$3CAjkhzA131V3V-sLfP2uy0FWZ0.run(:4)
       at android.os.Handler.handleCallback(Handler.java:938)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loop(Looper.java:236)
       at android.app.ActivityThread.main(ActivityThread.java:8057)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:620)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1011)

consentInfo().listen() gets first info, only

Quick question, consentInfo().listen() seems not to work correctly in my case.

It gets the first consent-info, but when the user adjusts the consent-settings, it gets nothing.

IabtcfConsentInfo.instance.consentInfo().listen((info) {
  print(info);
 });

Adjusting the consent-settings on my mobile, these get actually written as can be seen in my debug logs, but the listener is not updated with these new settings:

D/UserMessagingPlatform( 5131): Action[write]: {"IABTCF_CmpSdkID":300,"IABTCF_CmpSdkVersion":1,"IABTCF_PolicyVersion":2,"IABTCF_gdprApplies":1, ...

Should consentInfo().listen() actually work or is it due to some discrepancies between UMP evolving over time and this library? Am I doing something wrong?

Support web platform