feat: implement oauth1

lib/screens/common_widgets/auth/oauth1_fields.dart

@@ -1,3 +1,4 @@
+import 'package:apidash/utils/utils.dart';
 import 'package:apidash/widgets/widgets.dart';
 import 'package:apidash_core/apidash_core.dart';
 import 'package:apidash_design_system/widgets/widgets.dart';
@@ -188,7 +189,13 @@ class _OAuth1FieldsState extends State<OAuth1Fields> {
     );
   }
 
-  void _updateOAuth1() {
+  void _updateOAuth1() async {
+    final String? credentialsFilePath =
+        await getApplicationSupportDirectoryFilePath(
+            "oauth1_credentials", "json");
+    if (credentialsFilePath == null) {
+      return;
+    }
     widget.updateAuth?.call(
       widget.authData?.copyWith(
             type: APIAuthType.oauth1,
@@ -204,6 +211,7 @@ class _OAuth1FieldsState extends State<OAuth1Fields> {
               timestamp: _timestampController.text.trim(),
               nonce: _nonceController.text.trim(),
               realm: _realmController.text.trim(),
+              credentialsFilePath: credentialsFilePath,
             ),
           ) ??
           AuthModel(
@@ -220,6 +228,7 @@ class _OAuth1FieldsState extends State<OAuth1Fields> {
               timestamp: _timestampController.text.trim(),
               nonce: _nonceController.text.trim(),
               realm: _realmController.text.trim(),
+              credentialsFilePath: credentialsFilePath,
             ),
           ),
     );

packages/better_networking/lib/models/auth/auth_oauth1_model.dart

@@ -9,6 +9,7 @@ class AuthOAuth1Model with _$AuthOAuth1Model {
   const factory AuthOAuth1Model({
     required String consumerKey,
     required String consumerSecret,
+    required String credentialsFilePath,
     String? accessToken,
     String? tokenSecret,
     @Default("hmacSha1") String signatureMethod,

packages/better_networking/lib/models/auth/auth_oauth1_model.freezed.dart

@@ -23,6 +23,7 @@ AuthOAuth1Model _$AuthOAuth1ModelFromJson(Map<String, dynamic> json) {
 mixin _$AuthOAuth1Model {
   String get consumerKey => throw _privateConstructorUsedError;
   String get consumerSecret => throw _privateConstructorUsedError;
+  String get credentialsFilePath => throw _privateConstructorUsedError;
   String? get accessToken => throw _privateConstructorUsedError;
   String? get tokenSecret => throw _privateConstructorUsedError;
   String get signatureMethod => throw _privateConstructorUsedError;
@@ -55,6 +56,7 @@ abstract class $AuthOAuth1ModelCopyWith<$Res> {
   $Res call({
     String consumerKey,
     String consumerSecret,
+    String credentialsFilePath,
     String? accessToken,
     String? tokenSecret,
     String signatureMethod,
@@ -86,6 +88,7 @@ class _$AuthOAuth1ModelCopyWithImpl<$Res, $Val extends AuthOAuth1Model>
   $Res call({
     Object? consumerKey = null,
     Object? consumerSecret = null,
+    Object? credentialsFilePath = null,
     Object? accessToken = freezed,
     Object? tokenSecret = freezed,
     Object? signatureMethod = null,
@@ -108,6 +111,10 @@ class _$AuthOAuth1ModelCopyWithImpl<$Res, $Val extends AuthOAuth1Model>
                 ? _value.consumerSecret
                 : consumerSecret // ignore: cast_nullable_to_non_nullable
                       as String,
+            credentialsFilePath: null == credentialsFilePath
+                ? _value.credentialsFilePath
+                : credentialsFilePath // ignore: cast_nullable_to_non_nullable
+                      as String,
             accessToken: freezed == accessToken
                 ? _value.accessToken
                 : accessToken // ignore: cast_nullable_to_non_nullable
@@ -170,6 +177,7 @@ abstract class _$$AuthOAuth1ModelImplCopyWith<$Res>
   $Res call({
     String consumerKey,
     String consumerSecret,
+    String credentialsFilePath,
     String? accessToken,
     String? tokenSecret,
     String signatureMethod,
@@ -200,6 +208,7 @@ class __$$AuthOAuth1ModelImplCopyWithImpl<$Res>
   $Res call({
     Object? consumerKey = null,
     Object? consumerSecret = null,
+    Object? credentialsFilePath = null,
     Object? accessToken = freezed,
     Object? tokenSecret = freezed,
     Object? signatureMethod = null,
@@ -222,6 +231,10 @@ class __$$AuthOAuth1ModelImplCopyWithImpl<$Res>
             ? _value.consumerSecret
             : consumerSecret // ignore: cast_nullable_to_non_nullable
                   as String,
+        credentialsFilePath: null == credentialsFilePath
+            ? _value.credentialsFilePath
+            : credentialsFilePath // ignore: cast_nullable_to_non_nullable
+                  as String,
         accessToken: freezed == accessToken
             ? _value.accessToken
             : accessToken // ignore: cast_nullable_to_non_nullable
@@ -277,6 +290,7 @@ class _$AuthOAuth1ModelImpl implements _AuthOAuth1Model {
   const _$AuthOAuth1ModelImpl({
     required this.consumerKey,
     required this.consumerSecret,
+    required this.credentialsFilePath,
     this.accessToken,
     this.tokenSecret,
     this.signatureMethod = "hmacSha1",
@@ -298,6 +312,8 @@ class _$AuthOAuth1ModelImpl implements _AuthOAuth1Model {
   @override
   final String consumerSecret;
   @override
+  final String credentialsFilePath;
+  @override
   final String? accessToken;
   @override
   final String? tokenSecret;
@@ -326,7 +342,7 @@ class _$AuthOAuth1ModelImpl implements _AuthOAuth1Model {
 
   @override
   String toString() {
-    return 'AuthOAuth1Model(consumerKey: $consumerKey, consumerSecret: $consumerSecret, accessToken: $accessToken, tokenSecret: $tokenSecret, signatureMethod: $signatureMethod, parameterLocation: $parameterLocation, version: $version, realm: $realm, callbackUrl: $callbackUrl, verifier: $verifier, nonce: $nonce, timestamp: $timestamp, includeBodyHash: $includeBodyHash)';
+    return 'AuthOAuth1Model(consumerKey: $consumerKey, consumerSecret: $consumerSecret, credentialsFilePath: $credentialsFilePath, accessToken: $accessToken, tokenSecret: $tokenSecret, signatureMethod: $signatureMethod, parameterLocation: $parameterLocation, version: $version, realm: $realm, callbackUrl: $callbackUrl, verifier: $verifier, nonce: $nonce, timestamp: $timestamp, includeBodyHash: $includeBodyHash)';
   }
 
   @override
@@ -338,6 +354,8 @@ class _$AuthOAuth1ModelImpl implements _AuthOAuth1Model {
                 other.consumerKey == consumerKey) &&
             (identical(other.consumerSecret, consumerSecret) ||
                 other.consumerSecret == consumerSecret) &&
+            (identical(other.credentialsFilePath, credentialsFilePath) ||
+                other.credentialsFilePath == credentialsFilePath) &&
             (identical(other.accessToken, accessToken) ||
                 other.accessToken == accessToken) &&
             (identical(other.tokenSecret, tokenSecret) ||
@@ -365,6 +383,7 @@ class _$AuthOAuth1ModelImpl implements _AuthOAuth1Model {
     runtimeType,
     consumerKey,
     consumerSecret,
+    credentialsFilePath,
     accessToken,
     tokenSecret,
     signatureMethod,
@@ -399,6 +418,7 @@ abstract class _AuthOAuth1Model implements AuthOAuth1Model {
   const factory _AuthOAuth1Model({
     required final String consumerKey,
     required final String consumerSecret,
+    required final String credentialsFilePath,
     final String? accessToken,
     final String? tokenSecret,
     final String signatureMethod,
@@ -420,6 +440,8 @@ abstract class _AuthOAuth1Model implements AuthOAuth1Model {
   @override
   String get consumerSecret;
   @override
+  String get credentialsFilePath;
+  @override
   String? get accessToken;
   @override
   String? get tokenSecret;

packages/better_networking/lib/models/auth/auth_oauth1_model.g.dart

@@ -11,6 +11,7 @@ _$AuthOAuth1ModelImpl _$$AuthOAuth1ModelImplFromJson(
 ) => _$AuthOAuth1ModelImpl(
   consumerKey: json['consumerKey'] as String,
   consumerSecret: json['consumerSecret'] as String,
+  credentialsFilePath: json['credentialsFilePath'] as String,
   accessToken: json['accessToken'] as String?,
   tokenSecret: json['tokenSecret'] as String?,
   signatureMethod: json['signatureMethod'] as String? ?? "hmacSha1",
@@ -29,6 +30,7 @@ Map<String, dynamic> _$$AuthOAuth1ModelImplToJson(
 ) => <String, dynamic>{
   'consumerKey': instance.consumerKey,
   'consumerSecret': instance.consumerSecret,
+  'credentialsFilePath': instance.credentialsFilePath,
   'accessToken': instance.accessToken,
   'tokenSecret': instance.tokenSecret,
   'signatureMethod': instance.signatureMethod,

packages/better_networking/lib/utils/auth/handle_auth.dart

@@ -7,6 +7,8 @@ import 'package:better_networking/better_networking.dart';
 import 'package:better_networking/utils/auth/oauth2_utils.dart';
 import 'package:flutter/foundation.dart';
 
+import 'oauth1_utils.dart';
+
 Future<HttpRequestModel> handleAuth(
   HttpRequestModel httpRequestModel,
   AuthModel? authData,
@@ -157,8 +159,24 @@ Future<HttpRequestModel> handleAuth(
       }
       break;
     case APIAuthType.oauth1:
-      // TODO: Handle this case.
-      throw UnimplementedError();
+      if (authData.oauth1 != null) {
+        final oauth1Model = authData.oauth1!;
+
+        try {
+          final client = generateOAuth1AuthHeader(
+            oauth1Model,
+            httpRequestModel,
+          );
+
+          updatedHeaders.add(
+            NameValueModel(name: 'Authorization', value: client),
+          );
+          updatedHeaderEnabledList.add(true);
+        } catch (e) {
+          throw Exception('OAuth 1.0 authentication failed: $e');
+        }
+      }
+      break;
     case APIAuthType.oauth2:
       final oauth2 = authData.oauth2;
 

packages/better_networking/lib/utils/auth/oauth1_utils.dart

@@ -0,0 +1,121 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:developer';
+import 'dart:io';
+import 'dart:math' as math;
+import 'package:crypto/crypto.dart';
+
+import '../../models/models.dart';
+
+/// Generates a simple OAuth 1.0a Authorization header directly from model
+String generateOAuth1AuthHeader(
+  AuthOAuth1Model oauth1Model,
+  HttpRequestModel request,
+) {
+  // Generate OAuth parameters
+  final timestamp = (DateTime.now().millisecondsSinceEpoch ~/ 1000).toString();
+  final nonce = _generateNonce();
+
+  // Build OAuth parameters map
+  final oauthParams = <String, String>{
+    'oauth_consumer_key': oauth1Model.consumerKey,
+    'oauth_signature_method': "HMAC-SHA1",
+    'oauth_timestamp': timestamp,
+    'oauth_nonce': nonce,
+    'oauth_version': oauth1Model.version,
+  };
+
+  // Add oauth_token if available
+  if (oauth1Model.accessToken != null && oauth1Model.accessToken!.isNotEmpty) {
+    oauthParams['oauth_token'] = oauth1Model.accessToken!;
+  }
+
+  // Create signature base string and signing key
+  final method = request.method.name.toUpperCase();
+  final uri = Uri.parse(request.url);
+  final baseString = _createSignatureBaseString(method, uri, oauthParams);
+  final signingKey =
+      '${Uri.encodeComponent(oauth1Model.consumerSecret)}&'
+      '${Uri.encodeComponent(oauth1Model.tokenSecret ?? '')}';
+
+  // Generate signature using HMAC-SHA1
+  final signature = _generateHmacSha1Signature(baseString, signingKey);
+  oauthParams['oauth_signature'] = signature;
+
+  // Build Authorization header
+  final authParts = oauthParams.entries
+      .map((e) => '${e.key}="${Uri.encodeComponent(e.value)}"')
+      .join(',');
+
+  return 'OAuth $authParts';
+}
+
+/// Helper function to clear saved OAuth 1.0 credentials
+Future<void> clearOAuth1Credentials(File credentialsFile) async {
+  if (await credentialsFile.exists()) {
+    try {
+      await credentialsFile.delete();
+      log('Cleared OAuth 1.0 credentials');
+    } catch (e) {
+      log('Error clearing OAuth 1.0 credentials: $e');
+    }
+  }
+}
+
+/// Generates a random nonce for OAuth 1.0a
+String _generateNonce() {
+  const chars =
+      'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+  final random = math.Random.secure();
+  return String.fromCharCodes(
+    Iterable.generate(
+      16,
+      (_) => chars.codeUnitAt(random.nextInt(chars.length)),
+    ),
+  );
+}
+
+/// Creates the signature base string for OAuth 1.0a
+String _createSignatureBaseString(
+  String method,
+  Uri uri,
+  Map<String, String> parameters,
+) {
+  // Combine OAuth parameters with query parameters
+  final allParameters = <String, String>{...parameters};
+
+  // Add query parameters from the URI
+  uri.queryParameters.forEach((key, value) {
+    allParameters[key] = value;
+  });
+
+  // Sort parameters by key
+  final sortedKeys = allParameters.keys.toList()..sort();
+
+  // Create parameter string
+  final paramString = sortedKeys
+      .map(
+        (key) =>
+            '${Uri.encodeComponent(key)}=${Uri.encodeComponent(allParameters[key]!)}',
+      )
+      .join('&');
+
+  // Create base URI (without query parameters)
+  final baseUri = uri.replace(queryParameters: {}).toString();
+
+  // Create signature base string
+  return '${method.toUpperCase()}&'
+      '${Uri.encodeComponent(baseUri)}&'
+      '${Uri.encodeComponent(paramString)}';
+}
+
+/// Generates HMAC-SHA1 signature for OAuth 1.0a
+String _generateHmacSha1Signature(String baseString, String key) {
+  final keyBytes = utf8.encode(key);
+  final messageBytes = utf8.encode(baseString);
+
+  final hmac = Hmac(sha1, keyBytes);
+  final digest = hmac.convert(messageBytes);
+
+  return base64Encode(digest.bytes);
+}

pubspec.lock

@@ -55,38 +55,6 @@ packages:
       relative: true
     source: path
     version: "0.0.1"
-  app_links:
-    dependency: transitive
-    description:
-      name: app_links
-      sha256: "85ed8fc1d25a76475914fff28cc994653bd900bc2c26e4b57a49e097febb54ba"
-      url: "https://pub.dev"
-    source: hosted
-    version: "6.4.0"
-  app_links_linux:
-    dependency: transitive
-    description:
-      name: app_links_linux
-      sha256: f5f7173a78609f3dfd4c2ff2c95bd559ab43c80a87dc6a095921d96c05688c81
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.0.3"
-  app_links_platform_interface:
-    dependency: transitive
-    description:
-      name: app_links_platform_interface
-      sha256: "05f5379577c513b534a29ddea68176a4d4802c46180ee8e2e966257158772a3f"
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.0.2"
-  app_links_web:
-    dependency: transitive
-    description:
-      name: app_links_web
-      sha256: af060ed76183f9e2b87510a9480e56a5352b6c249778d07bd2c95fc35632a555
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.0.4"
   archive:
     dependency: transitive
     description:
@@ -782,14 +750,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.3.2"
-  gtk:
-    dependency: transitive
-    description:
-      name: gtk
-      sha256: e8ce9ca4b1df106e4d72dad201d345ea1a036cc12c360f1a7d5a758f78ffa42c
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.1.0"
   har:
     dependency: transitive
     description:
@@ -1198,6 +1158,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.2"
+  oauth1:
+    dependency: transitive
+    description:
+      name: oauth1
+      sha256: "1d424e3c24017a6c5714acb12e0dd76c2fdff96db6d6ef0aab58c925ffc28ae0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
   oauth2:
     dependency: transitive
     description:
@@ -2034,38 +2002,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.2.1"
-  webview_flutter:
-    dependency: transitive
-    description:
-      name: webview_flutter
-      sha256: c3e4fe614b1c814950ad07186007eff2f2e5dd2935eba7b9a9a1af8e5885f1ba
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.13.0"
-  webview_flutter_android:
-    dependency: transitive
-    description:
-      name: webview_flutter_android
-      sha256: "9573ad97890d199ac3ab32399aa33a5412163b37feb573eb5b0a76b35e9ffe41"
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.8.2"
-  webview_flutter_platform_interface:
-    dependency: transitive
-    description:
-      name: webview_flutter_platform_interface
-      sha256: f0dc2dc3a2b1e3a6abdd6801b9355ebfeb3b8f6cde6b9dc7c9235909c4a1f147
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.13.1"
-  webview_flutter_wkwebview:
-    dependency: transitive
-    description:
-      name: webview_flutter_wkwebview
-      sha256: "71523b9048cf510cfa1fd4e0a3fa5e476a66e0884d5df51d59d5023dba237107"
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.22.1"
   win32:
     dependency: transitive
     description: