第一次提交

2025-06-27 20:20:51 +08:00
commit 33f86752de
153 changed files with 6743 additions and 0 deletions
--- a/lib/providers/api.dart
+++ b/lib/providers/api.dart
@@ -0,0 +1,146 @@
+import 'dart:convert';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:http/http.dart' as http;
+
+import '../config.dart';
+import '../models/class_cookie_entry.dart';
+
+const _cookieKey = AppSharedPreferencesKey.cookieKey;
+
+final cookieProvider = StateNotifierProvider<CookieNotifier, Map<String, CookieEntry>>((ref) {
+  return CookieNotifier();
+});
+
+final cookieHeaderProvider = Provider<String>((ref) {
+  final cookies = ref.watch(cookieProvider);
+  final now = DateTime.now();
+
+  return cookies.entries
+  .where((e) => e.value.expires == null || e.value.expires!.isAfter(now))
+  .map((e) => e.value.toCookieString(e.key))
+  .join('; ');
+});
+
+
+final apiClientProvider = Provider<ApiClient>((ref) {
+  final cookieHeader = ref.watch(cookieHeaderProvider);
+  final client = ApiClient(ref: ref);
+  ref.onDispose(client.dispose);
+  return client;
+});
+
+class ApiClient {
+  final Ref ref;
+  final http.Client _client;
+
+  static const String baseUrl = AppConfig.apiBaseUrl;
+
+  ApiClient({required this.ref, http.Client? client})
+  : _client = client ?? http.Client(); // 复用或新建
+
+  Map<String, String> _buildHeaders({Map<String, String>? extra}) {
+    final cookieHeader = ref.read(cookieHeaderProvider);
+    return {
+      'Content-Type': 'application/json',
+      if (cookieHeader.isNotEmpty) 'Cookie': cookieHeader,
+        ...?extra,
+    };
+  }
+
+  Future<http.Response> _send(Future<http.Response> Function(http.Client client) request) async {
+    final response = await request(_client);
+
+    final setCookie = response.headers['set-cookie'];
+    if (setCookie != null) {
+      await ref.read(cookieProvider.notifier).updateFromSetCookie(setCookie.split(','));
+    }
+
+    return response;
+  }
+
+  Future<http.Response> get(String path, {Map<String, String>? headers}) {
+    return _send((client) => client.get(
+      Uri.parse('$baseUrl/$path'),
+      headers: _buildHeaders(extra: headers),
+    ));
+  }
+
+  Future<http.Response> post(String path, {Map<String, String>? headers, String? body}) {
+    return _send((client) => client.post(
+      Uri.parse('$baseUrl/$path'),
+      headers: _buildHeaders(extra: headers),
+      body: body,
+    ));
+  }
+
+  void _checkResponse(http.Response res) {
+    if (res.statusCode >= 300) {
+      throw Exception('HTTP ${res.statusCode}: ${res.body}');
+    }
+  }
+
+  void dispose() {
+    _client.close(); // 记得释放资源
+  }
+}
+
+class CookieNotifier extends StateNotifier<Map<String, CookieEntry>> {
+  CookieNotifier() : super({}) {
+    _load();
+  }
+
+  Future<void> _load() async {
+    final prefs = await SharedPreferences.getInstance();
+    final list = prefs.getStringList(_cookieKey) ?? [];
+    final map = <String, CookieEntry>{};
+
+    for (final item in list) {
+      final split = item.split('|');
+      if (split.length == 2) {
+        final key = split[0];
+        final valueMap = Map<String, dynamic>.from(jsonDecode(split[1]));
+        map[key] = CookieEntry.fromJson(valueMap);
+      }
+    }
+
+    state = map;
+  }
+
+  Future<void> _persist() async {
+    final prefs = await SharedPreferences.getInstance();
+    final list = state.entries.map((e) => '${e.key}|${jsonEncode(e.value.toJson())}').toList();
+    await prefs.setStringList(_cookieKey, list);
+  }
+
+  Future<void> setAll(Map<String, CookieEntry> map) async {
+    state = Map<String, CookieEntry>.from(map);
+    await _persist();
+  }
+
+  Future<void> clear() async {
+    state = {};
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.remove(_cookieKey);
+  }
+
+  Future<void> updateFromSetCookie(List<String> setCookies) async {
+    final updated = Map<String, CookieEntry>.from(state);
+
+    for (final raw in setCookies) {
+      final parts = raw.split(';');
+      final kv = parts[0].split('=');
+      if (kv.length < 2) continue;
+      final name = kv[0].trim();
+      final entry = CookieEntry.fromSetCookie(raw);
+      updated[name] = entry;
+    }
+
+    state = updated;
+    await _persist();
+  }
+
+  bool get isLoggedIn =>
+  state.containsKey('auth') || state.containsKey('sessionid');
+}