feat: embed a Flutter G4F client with Cronet, cookie jar, and origin WebView

Port the Oracle off the Python g4f container onto on-device providers: Chromium HTTP via Cronet, a shared cookie session, IterList retry, hosted OpenAI-compat aggregators, and same-origin WebView fallbacks instead of CORS fetch.
2026-09-01 22:05:38 +05:00
parent f3e7412cf9
commit fbf04d90db
49 changed files with 4856 additions and 92 deletions
@@ -0,0 +1,118 @@
+import 'dart:convert';
+import 'dart:math';
+import 'package:http/http.dart' as http;
+import '../http_client.dart';
+import 'package:crypto/crypto.dart';
+import 'package:uuid/uuid.dart';
+import '../models.dart';
+import 'base_provider.dart';
+
+class DeepAi extends BaseProvider {
+  @override
+  String get name => 'DeepAI';
+
+  @override
+  String get label => 'DeepAI';
+
+  @override
+  String get url => 'https://deepai.org/chat';
+
+  @override
+  bool get working => true;
+
+  @override
+  bool get supportsStream => true;
+
+  @override
+  String get defaultModel => 'standard';
+
+  @override
+  Map<String, String> get modelAliases => const {
+        G4FModels.gpt4: 'standard',
+        G4FModels.gpt4o: 'standard',
+        G4FModels.gpt4oMini: 'standard',
+      };
+
+  @override
+  List<String> get models => [
+        'standard',
+        'online',
+        'gemma-4',
+        'gemini-2.5-flash-lite',
+        'deepseek-v3.2',
+      ];
+
+  String _reverseString(String input) {
+    return input.split('').reversed.join('');
+  }
+
+  String _myHashFunction(String inputStr) {
+    var bytes = utf8.encode(inputStr);
+    var digest = md5.convert(bytes);
+    return _reverseString(digest.toString());
+  }
+
+  String _generateApiKey(String userAgent) {
+    final random = Random();
+    final myRandomStr = (random.nextDouble() * 100000000000).round().toString();
+
+    final hash1 = _myHashFunction(
+        userAgent + myRandomStr + "hackers_become_a_little_stinkier_every_time_they_hack");
+    final hash2 = _myHashFunction(userAgent + hash1);
+    final hash3 = _myHashFunction(userAgent + hash2);
+
+    return "tryit-$myRandomStr-$hash3";
+  }
+
+  @override
+  Stream<String> createAsyncGenerator(
+    String model,
+    List<Message> messages, {
+    bool stream = true,
+  }) async* {
+    final userAgent = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36';
+    final apiKey = _generateApiKey(userAgent);
+
+    final headers = {
+      'api-key': apiKey,
+      'user-agent': userAgent,
+      'origin': 'https://deepai.org',
+      'referer': 'https://deepai.org/chat',
+    };
+
+    final cleanedMessages = messages.map((m) => {'role': m.role.name, 'content': m.content}).toList();
+
+    var request = http.MultipartRequest('POST', Uri.parse('https://api.deepai.org/hacking_is_a_serious_crime'));
+    request.headers.addAll(headers);
+    
+    request.fields['chat_style'] = 'chat';
+    request.fields['chatHistory'] = jsonEncode(cleanedMessages);
+    request.fields['model'] = model;
+    request.fields['session_uuid'] = const Uuid().v4();
+    request.fields['sensitivity_request_id'] = const Uuid().v4();
+    request.fields['hacker_is_stinky'] = 'very_stinky';
+    request.fields['enabled_tools'] = jsonEncode(["image_generator", "image_editor"]);
+
+    final response = await g4fHttp.send(request).timeout(requestTimeout);
+
+    if (response.statusCode != 200) {
+      final errorText = await response.stream.bytesToString();
+      throw Exception('DeepAI API returned status: ${response.statusCode} $errorText');
+    }
+
+    const fs = '\x1c';
+    var buffer = '';
+    await for (final chunk in response.stream.transform(utf8.decoder)) {
+      if (chunk.isEmpty) continue;
+      if (chunk.contains(fs) || buffer.contains(fs)) {
+        buffer += chunk;
+        final parts = buffer.split(fs);
+        if (parts[0].trim().isNotEmpty) {
+          yield parts[0];
+        }
+        break;
+      }
+      yield chunk;
+    }
+  }
+}