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 +1,90 @@
+import '../http_util.dart';
+import '../models.dart';
+import 'base_provider.dart';
+import 'openai_compat.dart';
+
+/// Python `KiloCode` — OpenAI-compat gateway, no key for `kilo-auto/free`.
+class KiloCode extends OpenAiCompatProvider {
+  KiloCode()
+      : super(
+          providerName: 'KiloCode',
+          apiBase: 'https://api.kilo.ai/api/gateway',
+          fallbackModel: 'kilo-auto/free',
+          supportedModels: const ['kilo-auto/free', 'kilo-auto'],
+        );
+
+  @override
+  String get url => 'https://kilo.ai';
+}
+
+/// Python `OpenCode` — `https://opencode.ai/zen/v1`, default `big-pickle`.
+class OpenCode extends OpenAiCompatProvider {
+  OpenCode()
+      : super(
+          providerName: 'OpenCode',
+          apiBase: 'https://opencode.ai/zen/v1',
+          fallbackModel: 'big-pickle',
+          supportedModels: const ['big-pickle'],
+        );
+
+  @override
+  String get url => 'https://opencode.ai';
+}
+
+/// Python `G4FSpace` / `ClientFactory("default")`.
+/// Anonymous calls currently return 402 cake-credits; still tried so a baked
+/// session cookie or future free window works without a code change.
+class G4FSpace extends BaseProvider {
+  @override
+  String get name => 'G4FSpace';
+
+  @override
+  String get url => 'https://g4f.space';
+
+  @override
+  bool get working => true;
+
+  @override
+  List<String> get models => const ['auto', 'gpt-4o', 'openai'];
+
+  @override
+  String get defaultModel => 'auto';
+
+  static const _bases = [
+    'https://g4f.space/api/auto',
+    'https://g4f.space/api/pollinations',
+    'https://g4f.space/v1',
+  ];
+
+  @override
+  Stream<String> createAsyncGenerator(
+    String model,
+    List<Message> messages, {
+    bool stream = false,
+  }) async* {
+    final errors = <String>[];
+    for (final base in _bases) {
+      try {
+        final inner = OpenAiCompatProvider(
+          providerName: 'G4FSpace',
+          apiBase: base,
+          fallbackModel: model.isEmpty ? defaultModel : model,
+          supportedModels: models,
+        );
+        final text = await inner
+            .complete(model.isEmpty ? defaultModel : model, messages)
+            .timeout(requestTimeout);
+        if (looksLikeModelOutput(text)) {
+          yield text;
+          return;
+        }
+        errors.add('$base unusable');
+      } catch (e) {
+        errors.add('$base: $e');
+      }
+    }
+    throw Exception('G4FSpace failed: ${errors.join(' | ')}');
+  }
+}
+
+