| 1 | // Package weixin 实现微信 iLink Bot 适配器。 |
| 2 | // 参考 Hermes Agent 的 weixin adapter： |
| 3 | // - getupdates 长轮询 |
| 4 | // - sendmessage / sendtyping |
| 5 | // - context_token 持久化 |
| 6 | // - 二维码登录 |
| 7 | // - DM allowlist（默认只对 allowlist 内用户开放 DM；群聊默认关闭） |
| 8 | package weixin |
| 9 | |
| 10 | import ( |
| 11 | "bytes" |
| 12 | "context" |
| 13 | "crypto/rand" |
| 14 | "crypto/sha256" |
| 15 | "encoding/base64" |
| 16 | "encoding/hex" |
| 17 | "encoding/json" |
| 18 | "fmt" |
| 19 | "io" |
| 20 | "log/slog" |
| 21 | "net/http" |
| 22 | "os" |
| 23 | "path/filepath" |
| 24 | "strings" |
| 25 | "sync" |
| 26 | "time" |
| 27 | |
| 28 | "reasonix/internal/bot" |
| 29 | "reasonix/internal/config" |
| 30 | fileencoding "reasonix/internal/fileutil/encoding" |
| 31 | ) |
| 32 | |
| 33 | const ( |
| 34 | defaultWeixinAPI = "https://ilinkai.weixin.qq.com" |
| 35 | getUpdatesPath = "/ilink/bot/getupdates" |
| 36 | sendMessagePath = "/ilink/bot/sendmessage" |
| 37 | sendTypingPath = "/ilink/bot/sendtyping" |
| 38 | uploadMediaPath = "/ilink/bot/getuploadurl" |
| 39 | getBotQRPath = "/ilink/bot/get_bot_qrcode" |
| 40 | getQRStatusPath = "/ilink/bot/get_qrcode_status" |
| 41 | |
| 42 | ilinkAppID = "bot" |
| 43 | ilinkClientVersion = (2 << 16) | (2 << 8) |
| 44 | ilinkChannelVersion = "2.2.0" |
| 45 | weixinItemText = 1 |
| 46 | weixinMsgTypeBot = 2 |
| 47 | weixinMsgStateDone = 2 |
| 48 | |
| 49 | weixinHTTPTimeout = 30 * time.Second |
| 50 | ) |
| 51 | |
| 52 | var weixinHTTPClient = &http.Client{Timeout: weixinHTTPTimeout} |
| 53 | |
| 54 | // ilinkUpdate 微信 iLink getupdates 返回的更新消息。 |
| 55 | type ilinkUpdate struct { |
| 56 | UpdateID int64 `json:"update_id"` |
| 57 | UpdateType string `json:"update_type"` |
| 58 | Message struct { |
| 59 | MessageID ilinkString `json:"message_id"` |
| 60 | ChatID string `json:"chat_id"` |
| 61 | ChatType string `json:"chat_type"` |
| 62 | From struct { |
| 63 | UserID string `json:"user_id"` |
| 64 | UserName string `json:"user_name"` |
| 65 | } `json:"from"` |
| 66 | Text string `json:"text"` |
| 67 | Timestamp int64 `json:"timestamp"` |
| 68 | } `json:"message"` |
| 69 | } |
| 70 | |
| 71 | type ilinkMessage struct { |
| 72 | MessageID ilinkString `json:"message_id"` |
| 73 | FromUserID string `json:"from_user_id"` |
| 74 | ToUserID string `json:"to_user_id"` |
| 75 | RoomID string `json:"room_id"` |
| 76 | ChatRoomID string `json:"chat_room_id"` |
| 77 | ContextToken string `json:"context_token"` |
| 78 | MsgType int `json:"msg_type"` |
| 79 | ItemList []struct { |
| 80 | Type int `json:"type"` |
| 81 | TextItem struct { |
| 82 | Text string `json:"text"` |
| 83 | } `json:"text_item"` |
| 84 | } `json:"item_list"` |
| 85 | } |
| 86 | |
| 87 | type ilinkResponse struct { |
| 88 | Ret int `json:"ret"` |
| 89 | Errcode int `json:"errcode"` |
| 90 | Errmsg string `json:"errmsg"` |
| 91 | Updates []ilinkUpdate `json:"updates"` |
| 92 | Msgs []ilinkMessage `json:"msgs"` |
| 93 | HasMore bool `json:"has_more"` |
| 94 | ContextToken string `json:"context_token"` |
| 95 | GetUpdatesBuf string `json:"get_updates_buf"` |
| 96 | LongpollingTimeoutMs int `json:"longpolling_timeout_ms"` |
| 97 | } |
| 98 | |
| 99 | type ilinkString string |
| 100 | |
| 101 | func (s *ilinkString) UnmarshalJSON(data []byte) error { |
| 102 | if string(data) == "null" { |
| 103 | *s = "" |
| 104 | return nil |
| 105 | } |
| 106 | var str string |
| 107 | if err := json.Unmarshal(data, &str); err == nil { |
| 108 | *s = ilinkString(str) |
| 109 | return nil |
| 110 | } |
| 111 | var num json.Number |
| 112 | if err := json.Unmarshal(data, &num); err == nil { |
| 113 | *s = ilinkString(num.String()) |
| 114 | return nil |
| 115 | } |
| 116 | return fmt.Errorf("ilink string: expected string or number, got %s", string(data)) |
| 117 | } |
| 118 | |
| 119 | // adapter 微信适配器实现。 |
| 120 | type adapter struct { |
| 121 | cfg config.WeixinBotConfig |
| 122 | logger *slog.Logger |
| 123 | msgCh chan bot.InboundMessage |
| 124 | cancel context.CancelFunc |
| 125 | |
| 126 | mu sync.Mutex |
| 127 | contextTokens map[string]string |
| 128 | syncBuf string |
| 129 | lastUpdateID int64 |
| 130 | pollReadyOnce sync.Once |
| 131 | lastPollLog time.Time |
| 132 | } |
| 133 | |
| 134 | // New 创建微信 Bot 适配器。 |
| 135 | func New(cfg config.WeixinBotConfig, logger *slog.Logger) bot.Adapter { |
| 136 | return &adapter{ |
| 137 | cfg: cfg, |
| 138 | logger: logger.With("platform", "weixin"), |
| 139 | contextTokens: make(map[string]string), |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | func (a *adapter) Platform() bot.Platform { return bot.PlatformWeixin } |
| 144 | func (a *adapter) Name() string { return "weixin" } |
| 145 | |
| 146 | func (a *adapter) Start(ctx context.Context) error { |
| 147 | a.msgCh = make(chan bot.InboundMessage, 64) |
| 148 | ctx, a.cancel = context.WithCancel(ctx) |
| 149 | a.loadContextTokens() |
| 150 | if a.token() == "" { |
| 151 | return a.tokenMissingError() |
| 152 | } |
| 153 | |
| 154 | a.logger.Info("weixin polling started", "account", logHash(a.accountID()), "api_base", a.apiBase()) |
| 155 | go a.pollLoop(ctx) |
| 156 | return nil |
| 157 | } |
| 158 | |
| 159 | func (a *adapter) Stop() error { |
| 160 | if a.cancel != nil { |
| 161 | a.cancel() |
| 162 | } |
| 163 | return nil |
| 164 | } |
| 165 | |
| 166 | func (a *adapter) Send(ctx context.Context, msg bot.OutboundMessage) (bot.SendResult, error) { |
| 167 | return a.sendMessage(ctx, msg) |
| 168 | } |
| 169 | |
| 170 | func (a *adapter) SendTyping(ctx context.Context, chatID string) error { |
| 171 | return a.sendTyping(ctx, chatID) |
| 172 | } |
| 173 | |
| 174 | func (a *adapter) Messages() <-chan bot.InboundMessage { |
| 175 | return a.msgCh |
| 176 | } |
| 177 | |
| 178 | // SendText sends one plain text message to a saved Weixin iLink conversation. |
| 179 | // It is used by desktop settings as an actual connection test. |
| 180 | func SendText(ctx context.Context, cfg config.WeixinBotConfig, chatID, text string) (bot.SendResult, error) { |
| 181 | a := &adapter{cfg: cfg, logger: slog.Default().With("platform", "weixin"), contextTokens: make(map[string]string)} |
| 182 | return a.sendMessage(ctx, bot.OutboundMessage{ChatID: chatID, Text: text}) |
| 183 | } |
| 184 | |
| 185 | // token 从环境变量获取微信 token。 |
| 186 | func (a *adapter) token() string { |
| 187 | if token := os.Getenv(a.cfg.TokenEnv); token != "" { |
| 188 | return token |
| 189 | } |
| 190 | account, _ := loadSavedAccount(a.accountID()) |
| 191 | if account.Token != "" { |
| 192 | return account.Token |
| 193 | } |
| 194 | if a.cfg.AccountID == "" { |
| 195 | account, _ = loadAnySavedAccount() |
| 196 | return account.Token |
| 197 | } |
| 198 | return "" |
| 199 | } |
| 200 | |
| 201 | func (a *adapter) tokenMissingError() error { |
| 202 | if strings.TrimSpace(a.cfg.TokenEnv) == "" { |
| 203 | return fmt.Errorf("weixin token is not configured and no saved weixin account is available") |
| 204 | } |
| 205 | return fmt.Errorf("%s not set and no saved weixin account is available", a.cfg.TokenEnv) |
| 206 | } |
| 207 | |
| 208 | // apiBase 返回 API base URL。 |
| 209 | func (a *adapter) apiBase() string { |
| 210 | if a.cfg.APIBase != "" { |
| 211 | return a.cfg.APIBase |
| 212 | } |
| 213 | account, _ := loadSavedAccount(a.accountID()) |
| 214 | if account.BaseURL != "" { |
| 215 | return strings.TrimRight(account.BaseURL, "/") |
| 216 | } |
| 217 | return defaultWeixinAPI |
| 218 | } |
| 219 | |
| 220 | func (a *adapter) accountID() string { |
| 221 | if a.cfg.AccountID != "" { |
| 222 | return a.cfg.AccountID |
| 223 | } |
| 224 | return "default" |
| 225 | } |
| 226 | |
| 227 | func (a *adapter) contextToken(chatID string) string { |
| 228 | a.mu.Lock() |
| 229 | defer a.mu.Unlock() |
| 230 | return a.contextTokens[chatID] |
| 231 | } |
| 232 | |
| 233 | func (a *adapter) setContextToken(chatID, token string) { |
| 234 | a.mu.Lock() |
| 235 | if token == "" { |
| 236 | delete(a.contextTokens, chatID) |
| 237 | } else { |
| 238 | a.contextTokens[chatID] = token |
| 239 | } |
| 240 | a.mu.Unlock() |
| 241 | a.saveContextTokens() |
| 242 | } |
| 243 | |
| 244 | func (a *adapter) tokenStorePath() string { |
| 245 | root := config.MemoryUserDir() |
| 246 | if root == "" { |
| 247 | return "" |
| 248 | } |
| 249 | return filepath.Join(weixinAccountDir(root), a.accountID()+".context-tokens.json") |
| 250 | } |
| 251 | |
| 252 | func (a *adapter) loadContextTokens() { |
| 253 | path := a.tokenStorePath() |
| 254 | if path == "" { |
| 255 | return |
| 256 | } |
| 257 | data, err := fileencoding.ReadFileUTF8(path) |
| 258 | if err != nil { |
| 259 | return |
| 260 | } |
| 261 | var tokens map[string]string |
| 262 | if err := json.Unmarshal(data, &tokens); err != nil { |
| 263 | a.logger.Warn("failed to load weixin context tokens", "err", err) |
| 264 | return |
| 265 | } |
| 266 | a.mu.Lock() |
| 267 | a.contextTokens = tokens |
| 268 | a.mu.Unlock() |
| 269 | } |
| 270 | |
| 271 | func (a *adapter) saveContextTokens() { |
| 272 | path := a.tokenStorePath() |
| 273 | if path == "" { |
| 274 | return |
| 275 | } |
| 276 | if err := os.MkdirAll(filepath.Dir(path), 0o700); err != nil { |
| 277 | a.logger.Warn("failed to create weixin token dir", "err", err) |
| 278 | return |
| 279 | } |
| 280 | a.mu.Lock() |
| 281 | data, err := json.MarshalIndent(a.contextTokens, "", " ") |
| 282 | a.mu.Unlock() |
| 283 | if err != nil { |
| 284 | return |
| 285 | } |
| 286 | if err := os.WriteFile(path, data, 0o600); err != nil { |
| 287 | a.logger.Warn("failed to save weixin context tokens", "err", err) |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | func ilinkGET(ctx context.Context, baseURL, endpoint string) (map[string]any, error) { |
| 292 | req, err := http.NewRequestWithContext(ctx, "GET", strings.TrimRight(baseURL, "/")+"/"+strings.TrimLeft(endpoint, "/"), nil) |
| 293 | if err != nil { |
| 294 | return nil, err |
| 295 | } |
| 296 | req.Header.Set("iLink-App-Id", ilinkAppID) |
| 297 | req.Header.Set("iLink-App-ClientVersion", fmt.Sprintf("%d", ilinkClientVersion)) |
| 298 | resp, err := weixinHTTPClient.Do(req) |
| 299 | if err != nil { |
| 300 | return nil, err |
| 301 | } |
| 302 | defer resp.Body.Close() |
| 303 | data, _ := io.ReadAll(resp.Body) |
| 304 | if resp.StatusCode >= 400 { |
| 305 | if len(data) > 200 { |
| 306 | data = data[:200] |
| 307 | } |
| 308 | return nil, fmt.Errorf("HTTP %d: %s", resp.StatusCode, string(data)) |
| 309 | } |
| 310 | var out map[string]any |
| 311 | if err := json.Unmarshal(data, &out); err != nil { |
| 312 | return nil, err |
| 313 | } |
| 314 | return out, nil |
| 315 | } |
| 316 | |
| 317 | // pollLoop 长轮询获取更新。 |
| 318 | func (a *adapter) pollLoop(ctx context.Context) { |
| 319 | // 启动时短暂等待让登录完成 |
| 320 | if !bot.SleepCtx(ctx, 2*time.Second) { |
| 321 | return |
| 322 | } |
| 323 | |
| 324 | for { |
| 325 | if ctx.Err() != nil { |
| 326 | return |
| 327 | } |
| 328 | |
| 329 | updates, err := a.getUpdates(ctx) |
| 330 | if err != nil { |
| 331 | a.logger.Error("getupdates failed", "err", err) |
| 332 | if !bot.SleepCtx(ctx, 5*time.Second) { |
| 333 | return |
| 334 | } |
| 335 | continue |
| 336 | } |
| 337 | |
| 338 | for _, upd := range updates { |
| 339 | a.handleUpdate(upd) |
| 340 | } |
| 341 | |
| 342 | // 没有更新时短暂等待 |
| 343 | if len(updates) == 0 { |
| 344 | if !bot.SleepCtx(ctx, 500*time.Millisecond) { |
| 345 | return |
| 346 | } |
| 347 | } |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | // getUpdates 调用微信 iLink getupdates API。 |
| 352 | func (a *adapter) getUpdates(ctx context.Context) ([]ilinkUpdate, error) { |
| 353 | tok := a.token() |
| 354 | if tok == "" { |
| 355 | return nil, a.tokenMissingError() |
| 356 | } |
| 357 | |
| 358 | url := a.apiBase() + getUpdatesPath |
| 359 | |
| 360 | a.mu.Lock() |
| 361 | payload := map[string]interface{}{ |
| 362 | "get_updates_buf": a.syncBuf, |
| 363 | "base_info": map[string]string{ |
| 364 | "channel_version": ilinkChannelVersion, |
| 365 | }, |
| 366 | } |
| 367 | a.mu.Unlock() |
| 368 | |
| 369 | body, _ := json.Marshal(payload) |
| 370 | req, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewBuffer(body)) |
| 371 | if err != nil { |
| 372 | return nil, err |
| 373 | } |
| 374 | setIlinkHeaders(req, tok, body) |
| 375 | |
| 376 | resp, err := weixinHTTPClient.Do(req) |
| 377 | if err != nil { |
| 378 | return nil, err |
| 379 | } |
| 380 | defer resp.Body.Close() |
| 381 | |
| 382 | var result ilinkResponse |
| 383 | if err := json.NewDecoder(resp.Body).Decode(&result); err != nil { |
| 384 | return nil, err |
| 385 | } |
| 386 | if result.Ret != 0 || result.Errcode != 0 { |
| 387 | return nil, fmt.Errorf("getupdates error ret=%d errcode=%d: %s", result.Ret, result.Errcode, result.Errmsg) |
| 388 | } |
| 389 | a.pollReadyOnce.Do(func() { |
| 390 | a.logger.Info("weixin getupdates ready", "account", logHash(a.accountID()), "api_base", a.apiBase()) |
| 391 | }) |
| 392 | a.logPollHealth(result) |
| 393 | |
| 394 | a.mu.Lock() |
| 395 | if result.GetUpdatesBuf != "" { |
| 396 | a.syncBuf = result.GetUpdatesBuf |
| 397 | } |
| 398 | if len(result.Updates) > 0 { |
| 399 | last := result.Updates[len(result.Updates)-1] |
| 400 | a.lastUpdateID = last.UpdateID |
| 401 | } |
| 402 | a.mu.Unlock() |
| 403 | |
| 404 | if len(result.Msgs) > 0 { |
| 405 | for _, msg := range result.Msgs { |
| 406 | a.handleIlinkMessage(msg) |
| 407 | } |
| 408 | } |
| 409 | return result.Updates, nil |
| 410 | } |
| 411 | |
| 412 | func (a *adapter) logPollHealth(result ilinkResponse) { |
| 413 | shouldLog := len(result.Updates) > 0 || len(result.Msgs) > 0 |
| 414 | a.mu.Lock() |
| 415 | if !shouldLog && time.Since(a.lastPollLog) >= 5*time.Minute { |
| 416 | shouldLog = true |
| 417 | } |
| 418 | if shouldLog { |
| 419 | a.lastPollLog = time.Now() |
| 420 | } |
| 421 | a.mu.Unlock() |
| 422 | if !shouldLog { |
| 423 | return |
| 424 | } |
| 425 | a.logger.Info("weixin getupdates heartbeat", |
| 426 | "updates", len(result.Updates), |
| 427 | "msgs", len(result.Msgs), |
| 428 | "has_more", result.HasMore, |
| 429 | "timeout_ms", result.LongpollingTimeoutMs) |
| 430 | } |
| 431 | |
| 432 | // handleUpdate 处理单条微信更新消息。 |
| 433 | func (a *adapter) handleUpdate(upd ilinkUpdate) { |
| 434 | if upd.UpdateType != "message" { |
| 435 | a.logger.Info("weixin update ignored", "reason", "non_message", "update_type", upd.UpdateType) |
| 436 | return |
| 437 | } |
| 438 | |
| 439 | m := upd.Message |
| 440 | chatType := bot.ChatDM |
| 441 | if m.ChatType == "group" { |
| 442 | chatType = bot.ChatGroup |
| 443 | } |
| 444 | |
| 445 | ib := bot.InboundMessage{ |
| 446 | Platform: bot.PlatformWeixin, |
| 447 | ChatType: chatType, |
| 448 | ChatID: m.ChatID, |
| 449 | UserID: m.From.UserID, |
| 450 | UserName: m.From.UserName, |
| 451 | Text: m.Text, |
| 452 | MessageID: string(m.MessageID), |
| 453 | } |
| 454 | |
| 455 | select { |
| 456 | case a.msgCh <- ib: |
| 457 | a.logger.Info("weixin inbound queued", "source", "update", "chat_type", chatType, "chat", logHash(ib.ChatID), "user", logHash(ib.UserID), "message", logHash(ib.MessageID), "text_chars", len([]rune(ib.Text))) |
| 458 | default: |
| 459 | a.logger.Warn("weixin message channel full") |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | func (a *adapter) handleIlinkMessage(m ilinkMessage) { |
| 464 | if m.FromUserID == "" || m.FromUserID == a.accountID() { |
| 465 | a.logger.Info("weixin message ignored", "reason", "self_or_missing_sender", "from", logHash(m.FromUserID), "message", logHash(string(m.MessageID))) |
| 466 | return |
| 467 | } |
| 468 | text := extractIlinkText(m.ItemList) |
| 469 | if text == "" { |
| 470 | a.logger.Info("weixin message ignored", "reason", "empty_text", "from", logHash(m.FromUserID), "message", logHash(string(m.MessageID))) |
| 471 | return |
| 472 | } |
| 473 | chatType, chatID := guessIlinkChat(m, a.accountID()) |
| 474 | if chatID == "" { |
| 475 | a.logger.Info("weixin message ignored", "reason", "missing_chat", "from", logHash(m.FromUserID), "message", logHash(string(m.MessageID))) |
| 476 | return |
| 477 | } |
| 478 | if m.ContextToken != "" { |
| 479 | a.setContextToken(chatID, m.ContextToken) |
| 480 | } |
| 481 | ib := bot.InboundMessage{ |
| 482 | Platform: bot.PlatformWeixin, |
| 483 | ChatType: chatType, |
| 484 | ChatID: chatID, |
| 485 | UserID: m.FromUserID, |
| 486 | UserName: m.FromUserID, |
| 487 | Text: text, |
| 488 | MessageID: string(m.MessageID), |
| 489 | } |
| 490 | select { |
| 491 | case a.msgCh <- ib: |
| 492 | a.logger.Info("weixin inbound queued", "source", "message", "chat_type", chatType, "chat", logHash(ib.ChatID), "user", logHash(ib.UserID), "message", logHash(ib.MessageID), "text_chars", len([]rune(ib.Text))) |
| 493 | default: |
| 494 | a.logger.Warn("weixin message channel full") |
| 495 | } |
| 496 | } |
| 497 | |
| 498 | func logHash(id string) string { |
| 499 | if id == "" { |
| 500 | return "" |
| 501 | } |
| 502 | sum := sha256.Sum256([]byte(id)) |
| 503 | return hex.EncodeToString(sum[:])[:12] |
| 504 | } |
| 505 | |
| 506 | func extractIlinkText(items []struct { |
| 507 | Type int `json:"type"` |
| 508 | TextItem struct { |
| 509 | Text string `json:"text"` |
| 510 | } `json:"text_item"` |
| 511 | }) string { |
| 512 | var out []string |
| 513 | for _, item := range items { |
| 514 | if item.Type == weixinItemText && item.TextItem.Text != "" { |
| 515 | out = append(out, item.TextItem.Text) |
| 516 | } |
| 517 | } |
| 518 | return strings.TrimSpace(strings.Join(out, "\n")) |
| 519 | } |
| 520 | |
| 521 | func guessIlinkChat(m ilinkMessage, accountID string) (bot.ChatType, string) { |
| 522 | roomID := firstNonEmptyString(m.RoomID, m.ChatRoomID) |
| 523 | if roomID != "" { |
| 524 | return bot.ChatGroup, roomID |
| 525 | } |
| 526 | if m.ToUserID != "" && accountID != "" && m.ToUserID != accountID && m.MsgType == 1 { |
| 527 | return bot.ChatGroup, m.ToUserID |
| 528 | } |
| 529 | return bot.ChatDM, m.FromUserID |
| 530 | } |
| 531 | |
| 532 | func setIlinkHeaders(req *http.Request, token string, body []byte) { |
| 533 | req.Header.Set("Content-Type", "application/json") |
| 534 | req.Header.Set("AuthorizationType", "ilink_bot_token") |
| 535 | req.Header.Set("Authorization", "Bearer "+token) |
| 536 | req.Header.Set("Content-Length", fmt.Sprintf("%d", len(body))) |
| 537 | req.Header.Set("X-WECHAT-UIN", randomWechatUIN()) |
| 538 | req.Header.Set("iLink-App-Id", ilinkAppID) |
| 539 | req.Header.Set("iLink-App-ClientVersion", fmt.Sprintf("%d", ilinkClientVersion)) |
| 540 | } |
| 541 | |
| 542 | func randomWechatUIN() string { |
| 543 | var b [4]byte |
| 544 | if _, err := rand.Read(b[:]); err != nil { |
| 545 | return base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%d", time.Now().UnixNano()))) |
| 546 | } |
| 547 | return base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%d", uint32(b[0])<<24|uint32(b[1])<<16|uint32(b[2])<<8|uint32(b[3])))) |
| 548 | } |
| 549 | |
| 550 | func firstNonEmptyString(vals ...string) string { |
| 551 | for _, v := range vals { |
| 552 | if v != "" { |
| 553 | return v |
| 554 | } |
| 555 | } |
| 556 | return "" |
| 557 | } |
| 558 | |
| 559 | // sendMessage 使用微信 iLink sendmessage API 发送消息。 |
| 560 | func (a *adapter) sendMessage(ctx context.Context, msg bot.OutboundMessage) (bot.SendResult, error) { |
| 561 | tok := a.token() |
| 562 | if tok == "" { |
| 563 | return bot.SendResult{}, a.tokenMissingError() |
| 564 | } |
| 565 | |
| 566 | url := a.apiBase() + sendMessagePath |
| 567 | |
| 568 | payload := map[string]interface{}{ |
| 569 | "base_info": map[string]string{"channel_version": ilinkChannelVersion}, |
| 570 | "msg": map[string]interface{}{ |
| 571 | "from_user_id": "", |
| 572 | "to_user_id": msg.ChatID, |
| 573 | "client_id": fmt.Sprintf("reasonix-%d", time.Now().UnixNano()), |
| 574 | "message_type": weixinMsgTypeBot, |
| 575 | "message_state": weixinMsgStateDone, |
| 576 | "item_list": []map[string]interface{}{ |
| 577 | {"type": weixinItemText, "text_item": map[string]string{"text": msg.Text}}, |
| 578 | }, |
| 579 | }, |
| 580 | } |
| 581 | if contextToken := a.contextToken(msg.ChatID); contextToken != "" { |
| 582 | if m, ok := payload["msg"].(map[string]interface{}); ok { |
| 583 | m["context_token"] = contextToken |
| 584 | } |
| 585 | } |
| 586 | |
| 587 | body, _ := json.Marshal(payload) |
| 588 | req, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewBuffer(body)) |
| 589 | if err != nil { |
| 590 | return bot.SendResult{}, err |
| 591 | } |
| 592 | setIlinkHeaders(req, tok, body) |
| 593 | |
| 594 | resp, err := weixinHTTPClient.Do(req) |
| 595 | if err != nil { |
| 596 | return bot.SendResult{}, err |
| 597 | } |
| 598 | defer resp.Body.Close() |
| 599 | |
| 600 | var result struct { |
| 601 | Ret int `json:"ret"` |
| 602 | Errcode int `json:"errcode"` |
| 603 | Errmsg string `json:"errmsg"` |
| 604 | MessageID ilinkString `json:"message_id"` |
| 605 | } |
| 606 | respBody, _ := io.ReadAll(resp.Body) |
| 607 | if err := json.Unmarshal(respBody, &result); err != nil { |
| 608 | return bot.SendResult{}, err |
| 609 | } |
| 610 | if result.Ret != 0 || result.Errcode != 0 { |
| 611 | if a.contextToken(msg.ChatID) != "" { |
| 612 | a.setContextToken(msg.ChatID, "") |
| 613 | return a.sendMessage(ctx, msg) |
| 614 | } |
| 615 | return bot.SendResult{}, fmt.Errorf("sendmessage error ret=%d errcode=%d: %s", result.Ret, result.Errcode, result.Errmsg) |
| 616 | } |
| 617 | |
| 618 | return bot.SendResult{MessageID: string(result.MessageID)}, nil |
| 619 | } |
| 620 | |
| 621 | // sendTyping 发送"正在输入"状态。 |
| 622 | func (a *adapter) sendTyping(ctx context.Context, chatID string) error { |
| 623 | tok := a.token() |
| 624 | if tok == "" { |
| 625 | return a.tokenMissingError() |
| 626 | } |
| 627 | |
| 628 | url := a.apiBase() + sendTypingPath |
| 629 | |
| 630 | payload := map[string]interface{}{ |
| 631 | "base_info": map[string]string{"channel_version": ilinkChannelVersion}, |
| 632 | "ilink_user_id": chatID, |
| 633 | "status": 1, |
| 634 | } |
| 635 | if contextToken := a.contextToken(chatID); contextToken != "" { |
| 636 | payload["context_token"] = contextToken |
| 637 | } |
| 638 | body, _ := json.Marshal(payload) |
| 639 | |
| 640 | req, err := http.NewRequestWithContext(ctx, "POST", url, bytes.NewBuffer(body)) |
| 641 | if err != nil { |
| 642 | return err |
| 643 | } |
| 644 | setIlinkHeaders(req, tok, body) |
| 645 | |
| 646 | resp, err := weixinHTTPClient.Do(req) |
| 647 | if err != nil { |
| 648 | return err |
| 649 | } |
| 650 | defer resp.Body.Close() |
| 651 | |
| 652 | var result struct { |
| 653 | Ret int `json:"ret"` |
| 654 | Errcode int `json:"errcode"` |
| 655 | Errmsg string `json:"errmsg"` |
| 656 | } |
| 657 | if err := json.NewDecoder(resp.Body).Decode(&result); err != nil { |
| 658 | return err |
| 659 | } |
| 660 | if result.Ret != 0 || result.Errcode != 0 { |
| 661 | return fmt.Errorf("sendtyping error ret=%d errcode=%d: %s", result.Ret, result.Errcode, result.Errmsg) |
| 662 | } |
| 663 | |
| 664 | return nil |
| 665 | } |
| 666 |