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 +1,47 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:words999/g4f/http_util.dart';
+import 'package:words999/g4f/sse.dart';
+
+void main() {
+  test('splitSseLines reassembles lines split across chunks', () async {
+    final lines = await splitSseLines(Stream.fromIterable([
+      'data: {"message":"Hel',
+      'lo"}\n',
+      'data: {"message":"!"}\n',
+      'data: [DONE]\n',
+    ])).toList();
+    expect(lines, [
+      'data: {"message":"Hello"}',
+      'data: {"message":"!"}',
+      'data: [DONE]',
+    ]);
+  });
+
+  test('extractSseContent reads OpenAI deltas and Duck messages', () {
+    expect(
+      extractSseContent('{"choices":[{"delta":{"content":"Привет"}}]}'),
+      'Привет',
+    );
+    expect(
+      extractSseContent('{"message":"знак","action":"success"}'),
+      'знак',
+    );
+    expect(extractSseContent('[DONE]'), isNull);
+  });
+
+  test('extractOpenAiMessage reads a non-stream body', () {
+    const body =
+        '{"choices":[{"message":{"role":"assistant","content":"OK"}}]}';
+    expect(extractOpenAiMessage(body), 'OK');
+  });
+
+  test('looksLikeGarbage detects WAF and error pages', () {
+    expect(looksLikeGarbage('<!DOCTYPE html><html>'), isTrue);
+    expect(looksLikeGarbage('Just a moment...'), isTrue);
+    expect(looksLikeGarbage('Оракул видит знак ВЕТЕР'), isFalse);
+    expect(looksLikeModelOutput('OK'), isFalse);
+    expect(looksLikeModelOutput('{}'), isFalse);
+    expect(looksLikeGarbage('No cake credits'), isTrue);
+    expect(looksLikeModelOutput('Оракул видит знак ВЕТЕР'), isTrue);
+  });
+}