Document Validation flow (#72)

* Prepare DocumentValidationStrip

* Update change log + version

* pub upgrade

* Prepare separate DocumentValidationFragment

* Made response nullable

* Update value getter

* pub upgrade

* Impl. also case for not signed document

* Update impl. to work with latest API client

* Update UI to display signatures

* Impl. custom AVM Chip widget

* Simplify code to use type alias

* Update AGP for latest Android Studio support

* Update existing code

* Update paddings

* Extract PreviewDocumentFragment

* Screen uses two separate fragments with its onw lifecycle

* Include new feature in main screen body

* Impl strip hiding on tap

* Update DocumentValidationInfo label

* Update padding

* Using AVM modal bottom sheet for list

* Prepare CertificateDetails

* Displaying only certificate CN in labels

* Rename one widget

* Extract strings

* Cleanup ctor

* Update change log

* Tune Chip UX

* Tune validation info strip UI

* Explicitly specify compatible NDK version

* Setup ProGuard to fix Android build

* Cherry pick e6e69ce

Fix infinite loading state for remote signing

* Cleanup

---------

Co-authored-by: mkepes <[email protected]>

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## NEXT - 1.1.0(36)
+
+- Update AGP and Gradle version for latest Android Studio Ladybug (2024.2.1 Patch 1)
+- #35 | Android - opening only specific file types
+- #39 | When sharing document, set file name
+- #36 | Implement first version of Document validation
+
 ## 2024-07-16 - v1.0.4(35)
 
 - #32 | Cleanup

android/app/build.gradle

@@ -32,12 +32,12 @@ android {
     ndkVersion flutter.ndkVersion
 
     compileOptions {
-        sourceCompatibility JavaVersion.VERSION_1_8
-        targetCompatibility JavaVersion.VERSION_1_8
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
     }
 
     kotlinOptions {
-        jvmTarget = '1.8'
+        jvmTarget = '17'
     }
 
     sourceSets {
@@ -72,25 +72,21 @@ android {
     buildTypes {
         release {
             signingConfig signingConfigs.release
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
 
         debug {
             // no signing config for debug builds
         }
     }
+    ndkVersion "25.1.8937393"
 }
 
 repositories {
     google()
     mavenCentral()
-    maven {
-        // Local distribution
-        url = uri("../../../eidmsdk_flutter/android/libs")
-    }
 }
 
 flutter {
     source '../..'
 }
-
-dependencies {}

android/app/proguard-rules.pro

@@ -0,0 +1,38 @@
+-dontwarn com.google.android.play.core.splitcompat.SplitCompatApplication
+-dontwarn com.google.android.play.core.splitinstall.SplitInstallException
+-dontwarn com.google.android.play.core.splitinstall.SplitInstallManager
+-dontwarn com.google.android.play.core.splitinstall.SplitInstallManagerFactory
+-dontwarn com.google.android.play.core.splitinstall.SplitInstallRequest$Builder
+-dontwarn com.google.android.play.core.splitinstall.SplitInstallRequest
+-dontwarn com.google.android.play.core.splitinstall.SplitInstallSessionState
+-dontwarn com.google.android.play.core.splitinstall.SplitInstallStateUpdatedListener
+-dontwarn com.google.android.play.core.tasks.OnFailureListener
+-dontwarn com.google.android.play.core.tasks.OnSuccessListener
+-dontwarn com.google.android.play.core.tasks.Task
+-dontwarn com.google.api.client.http.GenericUrl
+-dontwarn com.google.api.client.http.HttpHeaders
+-dontwarn com.google.api.client.http.HttpRequest
+-dontwarn com.google.api.client.http.HttpRequestFactory
+-dontwarn com.google.api.client.http.HttpResponse
+-dontwarn com.google.api.client.http.HttpTransport
+-dontwarn com.google.api.client.http.javanet.NetHttpTransport$Builder
+-dontwarn com.google.api.client.http.javanet.NetHttpTransport
+-dontwarn javax.naming.Binding
+-dontwarn javax.naming.NamingEnumeration
+-dontwarn javax.naming.NamingException
+-dontwarn javax.naming.directory.Attribute
+-dontwarn javax.naming.directory.Attributes
+-dontwarn javax.naming.directory.DirContext
+-dontwarn javax.naming.directory.InitialDirContext
+-dontwarn javax.naming.directory.SearchControls
+-dontwarn javax.naming.directory.SearchResult
+-dontwarn org.bouncycastle.jsse.BCSSLParameters
+-dontwarn org.bouncycastle.jsse.BCSSLSocket
+-dontwarn org.bouncycastle.jsse.provider.BouncyCastleJsseProvider
+-dontwarn org.conscrypt.Conscrypt$Version
+-dontwarn org.conscrypt.Conscrypt
+-dontwarn org.conscrypt.ConscryptHostnameVerifier
+-dontwarn org.joda.time.Instant
+-dontwarn org.openjsse.javax.net.ssl.SSLParameters
+-dontwarn org.openjsse.javax.net.ssl.SSLSocket
+-dontwarn org.openjsse.net.ssl.OpenJSSE

android/gradle/wrapper/gradle-wrapper.properties

@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-all.zip

android/settings.gradle

@@ -23,7 +23,7 @@ pluginManagement {
 
 plugins {
     id "dev.flutter.flutter-plugin-loader" version "1.0.0"
-    id "com.android.application" version "7.4.2" apply false
+    id "com.android.application" version "8.3.2" apply false
     // START: FlutterFire Configuration
     id "com.google.gms.google-services" version "4.3.15" apply false
     id "com.google.firebase.crashlytics" version "2.8.1" apply false

lib/bloc/document_validation_cubit.dart

@@ -0,0 +1,53 @@
+import 'dart:async';
+
+import 'package:autogram_sign/autogram_sign.dart';
+import 'package:flutter_bloc/flutter_bloc.dart' show Cubit;
+import 'package:injectable/injectable.dart';
+import 'package:logging/logging.dart';
+
+import '../ui/fragment/document_validation_fragment.dart';
+import 'document_validation_state.dart';
+import 'preview_document_cubit.dart';
+
+export 'document_validation_state.dart';
+
+/// Cubit for the [DocumentValidationFragment] with [validateDocument] function.
+///
+/// See also:
+///  - [PreviewDocumentCubit]
+@injectable
+class DocumentValidationCubit extends Cubit<DocumentValidationState> {
+  static final _log = Logger((DocumentValidationCubit).toString());
+
+  final IAutogramService _service;
+
+  DocumentValidationCubit({
+    required IAutogramService service,
+  })  : _service = service,
+        super(const DocumentValidationInitialState());
+
+  Future<void> validateDocument(String documentId) async {
+    _log.info("Requesting to validate Document Id: '$documentId'.");
+    emit(const DocumentValidationLoadingState());
+
+    try {
+      final response = await _service.getDocumentValidation(documentId);
+
+      _log.info(
+          "Got Document validation: (signatureForm: ${response.signatureForm?.value}, signatures: ${response.signatures?.map((e) => e.validationResult.value)}).");
+
+      emit(DocumentValidationSuccessState(response));
+    } catch (error, stackTrace) {
+      if (error is ServiceException &&
+          error.errorCode == "DOCUMENT_NOT_SIGNED") {
+        _log.info("Cannot validate unsigned Document.");
+
+        emit(const DocumentValidationNotSignedState());
+      } else {
+        _log.severe("Error validating Document.", error, stackTrace);
+
+        emit(DocumentValidationErrorState(error));
+      }
+    }
+  }
+}

lib/bloc/document_validation_state.dart

@@ -0,0 +1,50 @@
+import 'package:autogram_sign/autogram_sign.dart'
+    show DocumentValidationResponseBody;
+import 'package:flutter/foundation.dart';
+
+import 'document_validation_cubit.dart';
+
+/// State for [DocumentValidationCubit].
+@immutable
+sealed class DocumentValidationState {
+  const DocumentValidationState();
+
+  @override
+  String toString() {
+    return "$runtimeType()";
+  }
+}
+
+class DocumentValidationInitialState extends DocumentValidationState {
+  const DocumentValidationInitialState();
+}
+
+class DocumentValidationLoadingState extends DocumentValidationState {
+  const DocumentValidationLoadingState();
+}
+
+class DocumentValidationErrorState extends DocumentValidationState {
+  final Object error;
+
+  const DocumentValidationErrorState(this.error);
+
+  @override
+  String toString() {
+    return "$runtimeType(error: $error)";
+  }
+}
+
+class DocumentValidationNotSignedState extends DocumentValidationState {
+  const DocumentValidationNotSignedState();
+}
+
+class DocumentValidationSuccessState extends DocumentValidationState {
+  final DocumentValidationResponseBody response;
+
+  const DocumentValidationSuccessState(this.response);
+
+  @override
+  String toString() {
+    return "$runtimeType(response: $response)";
+  }
+}

lib/bloc/present_signed_document_cubit.dart

@@ -32,11 +32,11 @@ class PresentSignedDocumentCubit extends Cubit<PresentSignedDocumentState> {
 
   final SignDocumentResponseBody signedDocument;
 
-  PresentSignedDocumentCubit(
-      {required AppService appService,
-      @factoryParam required this.signedDocument,
-      @factoryParam required DocumentSigningType signingType})
-      : _appService = appService,
+  PresentSignedDocumentCubit({
+    required AppService appService,
+    @factoryParam required this.signedDocument,
+    @factoryParam required DocumentSigningType signingType,
+  })  : _appService = appService,
         super(
           signingType == DocumentSigningType.local
               ? const PresentSignedDocumentInitialState()

lib/bloc/present_signed_document_state.dart

@@ -2,6 +2,8 @@ import 'dart:io' show File;
 
 import 'package:flutter/foundation.dart';
 
+import 'present_signed_document_cubit.dart';
+
 /// State for [PresentSignedDocumentCubit].
 @immutable
 sealed class PresentSignedDocumentState {
@@ -59,9 +61,4 @@ class PresentSignedLocalDocumentSuccessState
 class PresentSignedRemoteDocumentSuccessState
     extends PresentSignedDocumentState {
   const PresentSignedRemoteDocumentSuccessState();
-
-  @override
-  String toString() {
-    return "$runtimeType()";
-  }
 }

lib/bloc/preview_document_cubit.dart

@@ -31,7 +31,7 @@ class PreviewDocumentCubit extends Cubit<PreviewDocumentState> {
     emit(state.toLoading());
 
     try {
-      _log.info("Getting Document Visualisation for DocumentId: $documentId");
+      _log.info("Getting Document Visualisation for Document Id: $documentId");
 
       final visualization = await _service.getDocumentVisualization(documentId);