优化配置,修复 demo bug
1,network 框架完善 2,websocket 机制完善 3,设计文档整理到架构文档 4,脚本,配置完善
This commit is contained in:
@@ -0,0 +1,57 @@
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/// API 错误码常量
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///
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/// 集中管理后端业务错误码,避免散落在各处硬编码。
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/// 按业务域分组,命名风格对齐后端定义。
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///
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/// 使用方式:
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/// ```dart
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/// ApiConfig(
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/// tokenExpiredCodes: ApiErrorCodes.tokenExpiredCodes,
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/// forceLogoutCodes: ApiErrorCodes.forceLogoutCodes,
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/// )
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/// ```
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class ApiErrorCodes {
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ApiErrorCodes._();
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// ── 认证(30001-30009)──
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/// Token 无效
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static const int tokenInvalid = 30002;
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/// JWT 无效
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static const int jwtInvalid = 30003;
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/// 签名方法错误
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static const int signingMethodError = 30008;
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/// 密钥解析失败
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static const int parsingKeyError = 30009;
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/// Session 无效
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static const int sessionInvalid = 30124;
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/// Refresh Token 失效
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static const int refreshTokenFailed = 30125;
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/// 账号在其他设备登录
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static const int loggedInAnotherDevice = 30006;
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// ── 错误码集合 ──
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/// Token 过期错误码集合 — 触发自动刷新 Token
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static const Set<int> tokenExpiredCodes = {
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tokenInvalid,
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jwtInvalid,
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sessionInvalid,
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};
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/// 强制登出错误码集合 — 触发退出登录流程
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static const Set<int> forceLogoutCodes = {refreshTokenFailed};
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/// 踢下线错误码集合 — 触发踢下线 UI 提示
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static const Set<int> kickOffCodes = {
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loggedInAnotherDevice,
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signingMethodError,
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parsingKeyError,
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};
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}
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@@ -0,0 +1,32 @@
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import 'package:dart_jsonwebtoken/dart_jsonwebtoken.dart';
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/// JWT token 过期时间解析
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///
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/// 使用 dart_jsonwebtoken 解码 JWT payload,提取 `exp` claim 返回过期时间。
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/// 返回 null 表示无法解析(非 JWT 格式或缺少 exp 字段)。
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///
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/// 只读取 payload,不验证签名(验证是服务端的事)。
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///
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/// 用于 [ApiConfig.onGetTokenExpiry] 回调,启用 token 主动刷新:
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/// 距过期不足阈值时提前刷新,避免带过期 token 发请求或重连。
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///
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/// ```dart
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/// final expiry = parseJwtExpiry('eyJhbGci...');
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/// if (expiry != null) {
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/// final remaining = expiry.difference(DateTime.now());
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/// print('Token expires in ${remaining.inMinutes} min');
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/// }
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/// ```
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DateTime? parseJwtExpiry(String token) {
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try {
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final jwt = JWT.decode(token);
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final payload = jwt.payload;
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if (payload is! Map<String, dynamic>) return null;
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final exp = payload['exp'];
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if (exp is! int) return null;
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return DateTime.fromMillisecondsSinceEpoch(exp * 1000);
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} catch (_) {
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return null;
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}
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}
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@@ -1,6 +1,5 @@
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import 'dart:async';
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import 'package:networks_sdk/networks_sdk.dart';
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import 'network_backoff_debouncer.dart';
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@@ -10,9 +9,8 @@ import 'network_backoff_debouncer.dart';
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/// 参考 HTTP 层 onTokenRefresh 的回调注入模式。
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/// App 层在 Provider 装配时注入解密/解析逻辑,
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/// 不在 SDK 内部调用加解密 SDK。
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typedef MessageTransformer = Map<String, dynamic> Function(
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Map<String, dynamic> raw,
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);
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typedef MessageTransformer =
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Map<String, dynamic> Function(Map<String, dynamic> raw);
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/// WebSocket 连接管理
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///
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@@ -39,19 +37,26 @@ typedef MessageTransformer = Map<String, dynamic> Function(
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///
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/// ```
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/// 登录成功 → connect(token) → 前置检查 → 建立连接
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/// App 进后台 → onEnterBackground() → 断开连接(省电)
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/// App 回前台 → onEnterForeground() → 检查网络 → 自动重连
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///
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/// ── disconnectInBackground = true(默认,移动端)──
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/// App 进后台 → onEnterBackground() → 暂停心跳 + 断开连接(省电)
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/// App 回前台 → onEnterForeground() → 恢复心跳 → onBeforeReconnect → 重连
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///
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/// ── disconnectInBackground = false(桌面端)──
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/// App 进后台 → onEnterBackground() → 不操作,完全保活
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/// App 回前台 → onEnterForeground() → 不操作(连接始终在线)
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///
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/// 网络丢失 → handleNetworkLost() → 断开连接
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/// 网络恢复 → handleNetworkRestored() → 退避重连(防抖动)
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/// 网络恢复 → handleNetworkRestored() → 退避 → onBeforeReconnect → 重连
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/// 登出 → disconnect() → 断开连接,清除 token
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/// ```
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///
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/// ## 前置检查策略
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///
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/// 所有会发起网络操作的方法都先检查前置条件:
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/// - connect → 检查网络可用性 + 是否在后台
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/// - send / sendString → 检查连接状态 + 是否在后台
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/// - onEnterForeground 重连 → 检查网络可用性
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/// - connect → 检查网络可用性 + 是否在后台(仅 disconnectInBackground=true 时拦截)
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/// - send / sendString → 检查连接状态 + 是否在后台(仅 disconnectInBackground=true 时拦截)
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/// - onEnterForeground / 网络恢复重连 → 检查网络可用性 + onBeforeReconnect
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class SocketManager {
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final NetworksMessagingApi _client;
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final String _wsUrl;
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@@ -70,6 +75,22 @@ class SocketManager {
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/// 连接和重连前调用,无网络时跳过操作并标记恢复时重试。
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final Future<bool> Function()? onCheckNetworkAvailable;
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/// 重连前回调
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///
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/// 在 WebSocket 重连前调用(前台恢复、网络恢复),App 层用于:
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/// - 检查并刷新即将过期的 token
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/// - 更新连接参数
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///
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/// 回调完成后才发起实际重连。
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final Future<void> Function()? onBeforeReconnect;
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/// 进后台时是否断开连接
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///
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/// true(默认)— 后台断连省电,由 push 通知兜底,前台恢复时自动重连。
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/// false — 后台保持连接(适用于桌面端或需要后台实时推送的场景)。
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/// 设为 false 时,后台仅暂停心跳,不主动断连。
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final bool disconnectInBackground;
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/// 日志回调
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final void Function(String message, {String? tag})? onLog;
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@@ -104,10 +125,12 @@ class SocketManager {
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required NetworksMessagingApi client,
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required String wsUrl,
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this.onMessageTransform,
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this.onBeforeReconnect,
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this.disconnectInBackground = true,
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this.onCheckNetworkAvailable,
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this.onLog,
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}) : _client = client,
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_wsUrl = wsUrl;
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}) : _client = client,
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_wsUrl = wsUrl;
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// ── 连接 ──────────────────────────────────────────────────────────────────
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@@ -124,8 +147,8 @@ class SocketManager {
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_reconnectOnForeground = false;
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_reconnectOnNetworkRestore = false;
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// 前置检查:在后台不连接(省电)
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if (_isInBackground) {
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// 前置检查:移动端模式下在后台不连接(省电)
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if (_isInBackground && disconnectInBackground) {
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_reconnectOnForeground = true;
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_log('In background, defer connect to foreground');
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return false;
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@@ -165,26 +188,47 @@ class SocketManager {
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/// 当前是否在后台
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bool get isInBackground => _isInBackground;
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/// Token 热更新
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///
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/// 透传给 SocketClient,仅更新内部 token,不断开连接。
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/// 适用于 HTTP 层 token 刷新后同步到 WebSocket 的场景。
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void updateToken(String token) {
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_lastToken = token;
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_client.updateToken(token);
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_log('Token updated via SocketManager');
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}
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// ── 前后台生命周期 ────────────────────────────────────────────────────────
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//
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// 后台 → 断连(省电省流量)
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// 后台 → 断连(省电省流量)或保持连接(桌面端)
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// 前台 → 自动重连(如果之前有连接)
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/// App 进后台 → 断开连接,标记前台恢复时重连
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/// App 进后台
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///
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/// 由 App 层 WidgetsBindingObserver 在 [AppLifecycleState.paused] 时调用。
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/// 后台保持连接会消耗电量和流量,断开后由 push 通知兜底。
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///
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/// [disconnectInBackground] 为 true 时(默认,移动端):
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/// 断开连接 + 暂停心跳,由 push 通知兜底,前台恢复时自动重连。
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///
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/// [disconnectInBackground] 为 false 时(桌面端):
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/// 不断连、不暂停心跳,WebSocket 完全保活。
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void onEnterBackground() {
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_isInBackground = true;
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// 取消待执行的前台重连(防止快速 前台→后台 切换导致后台建连)
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_foregroundReconnectTimer?.cancel();
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_foregroundReconnectTimer = null;
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// 同步 SocketClient 内部状态(与 onEnterForeground 对称)
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if (!disconnectInBackground) {
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// 桌面端模式:不断连、不暂停心跳,完全保活
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_log('Entering background, keeping connection alive');
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return;
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}
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// 移动端模式:通知 SocketClient 进后台(暂停心跳)
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_client.onEnterBackground();
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if (_lastToken == null) return; // 未登录,无需处理
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// 与 _handleNetworkLost 保持一致:
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// 不仅 connected,connecting / reconnecting 也要断开,
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// 防止 SocketClient 在后台继续尝试连接浪费电量和流量。
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if (_client.isConnected ||
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@@ -202,7 +246,11 @@ class SocketManager {
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/// 重连前检查网络可用性,无网络时延迟到网络恢复事件再连。
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void onEnterForeground() {
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_isInBackground = false;
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_client.onEnterForeground();
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// 只在移动端模式(后台曾断连/暂停心跳)时通知 SocketClient 恢复
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if (disconnectInBackground) {
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_client.onEnterForeground();
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}
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if (_reconnectOnForeground && _lastToken != null) {
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_reconnectOnForeground = false;
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@@ -226,7 +274,12 @@ class SocketManager {
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_log('Network unavailable, defer reconnect to network restore');
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return;
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}
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_client.connect(_wsUrl, token: _lastToken!);
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// 重连前钩子:刷新即将过期的 token 等
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await onBeforeReconnect?.call();
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// token 可能被 onBeforeReconnect 更新(通过 updateToken 链路同步)
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if (_lastToken != null && !_client.isConnected) {
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_client.connect(_wsUrl, token: _lastToken!);
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}
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}
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},
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);
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@@ -275,18 +328,22 @@ class SocketManager {
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if (_reconnectOnNetworkRestore && _lastToken != null) {
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_reconnectOnNetworkRestore = false;
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// 在后台不重连,等前台恢复时再连
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if (_isInBackground) {
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// 移动端模式:在后台不重连,等前台恢复时再连
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if (_isInBackground && disconnectInBackground) {
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_reconnectOnForeground = true;
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_log('Network restored but in background, defer to foreground');
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return;
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}
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_log('Network restored, scheduling reconnect with backoff');
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_networkDebouncer.call(() {
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_networkDebouncer.call(() async {
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if (!_client.isConnected && _lastToken != null && !_isInBackground) {
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_log('Backoff timer fired, reconnecting');
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_client.connect(_wsUrl, token: _lastToken!);
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// 重连前钩子:刷新即将过期的 token 等
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await onBeforeReconnect?.call();
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if (!_client.isConnected && _lastToken != null && !_isInBackground) {
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_log('Backoff timer fired, reconnecting');
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_client.connect(_wsUrl, token: _lastToken!);
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}
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}
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});
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}
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@@ -308,6 +365,9 @@ class SocketManager {
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/// 原始消息流(不经预处理,调试用)
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Stream<String> get rawMessageStream => _client.rawMessageStream;
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/// 二进制消息流
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Stream<dynamic> get binaryMessageStream => _client.binaryMessageStream;
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/// 连接状态变化流
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Stream<SocketConnectionState> get connectionStateStream =>
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_client.connectionStateStream;
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@@ -333,6 +393,14 @@ class SocketManager {
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return _client.sendString(message);
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}
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/// 发送二进制数据
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///
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/// 前置检查:未连接或在后台时不发送。
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Future<bool> sendBytes(List<int> bytes) {
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if (!_canSend()) return Future.value(false);
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return _client.sendBytes(bytes);
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}
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// ── 释放 ──────────────────────────────────────────────────────────────────
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/// 释放所有资源
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@@ -355,7 +423,7 @@ class SocketManager {
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_log('Not connected, cannot send');
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return false;
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}
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if (_isInBackground) {
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if (_isInBackground && disconnectInBackground) {
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_log('In background, skip send');
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return false;
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}
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30
apps/im_app/lib/core/ui/base/assets.dart
Normal file
30
apps/im_app/lib/core/ui/base/assets.dart
Normal file
@@ -0,0 +1,30 @@
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/// 静态资源路径常量,统一维护,避免路径字符串散落在业务代码中。
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///
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/// 所有路径须与 pubspec.yaml 的 flutter.assets 声明保持一致。
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/// 新增资源:① 文件放入 assets/ ② pubspec.yaml 声明 ③ 此处加常量。
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///
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/// 渲染逻辑(缓存、占位、错误态)由 core/ui/components/ 下的组件负责,不在此处封装。
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///
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/// ## 使用
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/// ```dart
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/// Image.asset(AppAssets.logo)
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/// Image.asset(AppAssets.logo, width: 80, fit: BoxFit.cover)
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/// ```
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abstract final class AppAssets {
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AppAssets._();
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// ── 品牌 ──────────────────────────────────────────────────
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static const logo = 'assets/images/logo.png';
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static const logoLight = 'assets/images/logo_light.png';
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// ── 占位图 ────────────────────────────────────────────────
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static const avatarPlaceholder = 'assets/images/avatar_placeholder.png';
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// ── 空状态插图(SVG,引入 flutter_svg 后启用) ─────────────
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// static const emptyChat = 'assets/svg/empty_chat.svg';
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// static const emptyContact = 'assets/svg/empty_contact.svg';
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// static const emptySearch = 'assets/svg/empty_search.svg';
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// ── 动画 ──────────────────────────────────────────────────
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// static const loading = 'assets/gif/loading.gif';
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}
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44
apps/im_app/lib/core/ui/base/icons.dart
Normal file
44
apps/im_app/lib/core/ui/base/icons.dart
Normal file
@@ -0,0 +1,44 @@
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import 'package:flutter/material.dart';
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/// 项目图标常量,统一维护,避免 Icons.xxx 散落在业务代码中。
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///
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/// 渲染逻辑(大小、颜色、点击态)由调用方负责,不在此处封装。
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///
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/// ## 使用
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/// ```dart
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/// Icon(AppIcons.send)
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/// Icon(AppIcons.send, size: 20, color: Colors.white)
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||||
/// IconButton(icon: Icon(AppIcons.back), onPressed: ...)
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/// ```
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abstract final class AppIcons {
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AppIcons._();
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// ── 底部导航 ──────────────────────────────────────────────
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||||
static const chat = Icons.chat_bubble_outline_rounded;
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static const contact = Icons.people_outline_rounded;
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||||
static const settings = Icons.settings_outlined;
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||||
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// ── 通用操作 ──────────────────────────────────────────────
|
||||
static const back = Icons.arrow_back_ios_new_rounded;
|
||||
static const close = Icons.close_rounded;
|
||||
static const more = Icons.more_horiz_rounded;
|
||||
static const search = Icons.search_rounded;
|
||||
static const add = Icons.add_rounded;
|
||||
|
||||
// ── 聊天输入区 ────────────────────────────────────────────
|
||||
static const send = Icons.send_rounded;
|
||||
static const attach = Icons.attach_file_rounded;
|
||||
static const emoji = Icons.emoji_emotions_outlined;
|
||||
static const camera = Icons.camera_alt_outlined;
|
||||
static const voice = Icons.mic_outlined;
|
||||
|
||||
// ── 用户 / 联系人 ─────────────────────────────────────────
|
||||
static const avatar = Icons.account_circle_outlined;
|
||||
static const addUser = Icons.person_add_outlined;
|
||||
|
||||
// ── 状态反馈 ──────────────────────────────────────────────
|
||||
static const success = Icons.check_circle_outline_rounded;
|
||||
static const warning = Icons.warning_amber_rounded;
|
||||
static const error = Icons.error_outline_rounded;
|
||||
static const info = Icons.info_outline_rounded;
|
||||
}
|
||||
Reference in New Issue
Block a user