chore(telegram): rebuild telegram module with go-telegram/bot

fix(telegram): fix bot cannot send message in groups
This commit is contained in:
2026-09-02 20:47:25 +08:00
parent 935ea24d54
commit 0b7fcd6c48
5 changed files with 185 additions and 322 deletions
+97 -31
View File
@@ -1,37 +1,71 @@
package telegram
import (
"context"
"encoding/json"
"errors"
"fmt"
"strconv"
"strings"
"sync"
"time"
"github.com/go-telegram/bot"
"github.com/go-telegram/bot/models"
"nukumizu-backend/config"
"nukumizu-backend/internal/controller"
"nukumizu-backend/internal/netproxy"
"nukumizu-backend/internal/node"
"nukumizu-backend/internal/template"
"nukumizu-backend/postLog"
)
// TelegramController handles Telegram Bot interactions via long polling.
const (
// pollTimeout is the getUpdates long-polling window requested from the API.
// The framework sends (pollTimeout - 1s) to getUpdates; apiTimeout, which
// also bounds the HTTP client, is kept well above it so a poll request is
// never cut short by the client.
pollTimeout = 30 * time.Second
// apiTimeout bounds individual Bot API calls (getMe, sendMessage, ...) and
// the initial token check in Start.
apiTimeout = 2 * time.Minute
)
// TelegramController handles Telegram Bot interactions via long polling. The
// transport and update delivery are provided by the go-telegram/bot framework;
// this type wires it into the unified controller/command pipeline.
type TelegramController struct {
cfg config.TelegramConfig
client *Client
bot *User // The bot's own user object from getMe.
client *bot.Bot // underlying go-telegram/bot client
self *models.User // the bot's own user object from getMe
mu sync.Mutex
usernameToID map[string]int64 // resolved @username -> numeric user ID
pollCtx context.Context // cancelled by Stop to end long polling
pollCancel context.CancelFunc
}
// NewTelegramController creates a new Telegram controller.
// NewTelegramController creates a new Telegram controller. When enabled, the
// underlying bot client is built here (with the getMe handshake skipped) so
// outbound messages can be sent as soon as the controller is registered; token
// verification and polling are deferred to Start.
func NewTelegramController(cfg config.TelegramConfig) *TelegramController {
t := &TelegramController{
cfg: cfg,
usernameToID: make(map[string]int64),
}
if cfg.Enabled {
t.client = NewClient(cfg.BotToken, cfg.NetworkUseProxy)
t.pollCtx, t.pollCancel = context.WithCancel(context.Background())
if cfg.Enabled && strings.TrimSpace(cfg.BotToken) != "" {
b, err := t.newBot()
if err != nil {
postLog.Error("Failed to build Telegram client: " + err.Error())
return t
}
t.client = b
}
return t
}
@@ -47,22 +81,22 @@ func (t *TelegramController) Start() error {
return nil
}
if t.client == nil {
postLog.Warning("Telegram controller enabled but client is nil")
return nil
}
if t.cfg.BotToken == "" {
postLog.Warning("Telegram controller enabled but no bot token configured")
if strings.TrimSpace(t.cfg.BotToken) == "" {
postLog.Warning("Telegram controller enabled but no bot token configured")
} else {
postLog.Warning("Telegram controller enabled but client is nil")
}
return nil
}
// The tutorial's first step: verify the token with getMe. The returned bot
// identity is used for @mention mode and echo prevention.
bot, err := t.client.GetMe()
ctx, cancel := context.WithTimeout(context.Background(), apiTimeout)
self, err := t.client.GetMe(ctx)
cancel()
if err != nil {
return fmt.Errorf("failed to verify Telegram bot token (getMe): %w", err)
}
t.bot = bot
postLog.Info(fmt.Sprintf("Telegram bot authenticated: @%s (id %d)", bot.Username, bot.ID))
t.self = self
postLog.Info(fmt.Sprintf("Telegram bot authenticated: @%s (id %d)", self.Username, self.ID))
postLog.Info("Telegram controller started (long polling)")
go func() {
@@ -71,17 +105,17 @@ func (t *TelegramController) Start() error {
postLog.Error(fmt.Sprintf("Telegram poll loop panic recovered: %v", r))
}
}()
t.client.Listen(t.handleUpdate)
// Start blocks until pollCtx is cancelled by Stop. Updates are delivered
// to the default handler registered in newBot.
t.client.Start(t.pollCtx)
}()
return nil
}
// Stop shuts down the Telegram controller and its poll loop.
// Stop cancels the long-polling context and shuts down the controller.
func (t *TelegramController) Stop() {
if t.client != nil {
t.client.Stop()
}
t.pollCancel()
postLog.Info("Telegram controller stopped")
}
@@ -90,9 +124,20 @@ func (t *TelegramController) IsEnabled() bool {
return t.cfg.Enabled
}
// handleUpdate processes a single Telegram update received via long polling.
func (t *TelegramController) handleUpdate(update Update) {
if update.Message == nil {
// handleUpdate processes a single Telegram update received via long polling. It
// is installed as the framework's default handler (every update with a Message
// reaches it). Updates are processed sequentially because the bot is created
// with WithNotAsyncHandlers, mirroring the original single-threaded poll loop.
func (t *TelegramController) handleUpdate(_ context.Context, _ *bot.Bot, update *models.Update) {
// Protect the poll loop: a panic while handling one update must not take
// down long polling.
defer func() {
if r := recover(); r != nil {
postLog.Error(fmt.Sprintf("Telegram update handler panic recovered: %v", r))
}
}()
if update == nil || update.Message == nil {
return
}
msg := update.Message
@@ -106,11 +151,11 @@ func (t *TelegramController) handleUpdate(update Update) {
if msg.From == nil || msg.From.IsBot {
return
}
if t.bot != nil && msg.From.ID == t.bot.ID {
if t.self != nil && msg.From.ID == t.self.ID {
return
}
chatType := telegramChatType(msg.Chat.Type)
chatType := telegramChatType(string(msg.Chat.Type))
if chatType == "" {
return // channel or other unsupported chat type.
}
@@ -135,7 +180,7 @@ func (t *TelegramController) handleUpdate(update Update) {
return
}
if err := t.client.SendMessage(msg.Chat.ID, response); err != nil {
if err := t.sendMessage(msg.Chat.ID, response); err != nil {
postLog.Warning("Failed to send Telegram reply: " + err.Error())
}
}
@@ -148,8 +193,8 @@ func (t *TelegramController) processCommand(cmd controller.Command) string {
// In "at" listen mode, require a mention of the bot and strip it before
// parsing, mirroring the QQ CQ-at behavior.
if t.cfg.ListenMethod == "at" && t.bot != nil && t.bot.Username != "" {
mention := "@" + t.bot.Username
if t.cfg.ListenMethod == "at" && t.self != nil && t.self.Username != "" {
mention := "@" + t.self.Username
if !strings.Contains(text, mention) {
return "" // Not mentioned, ignore.
}
@@ -271,7 +316,7 @@ func stripCommandBotSuffix(text string) string {
// recordUser stores the numeric ID for a sender's username so admins configured
// by username (rather than numeric ID) can be resolved later.
func (t *TelegramController) recordUser(u *User) {
func (t *TelegramController) recordUser(u *models.User) {
if u == nil || u.Username == "" {
return
}
@@ -349,7 +394,28 @@ func (t *TelegramController) sendAdminMessage(admin string, message string) {
// sendToChat sends a message to a chat ID, logging failures.
func (t *TelegramController) sendToChat(chatID int64, message string) {
if err := t.client.SendMessage(chatID, message); err != nil {
if err := t.sendMessage(chatID, message); err != nil {
postLog.Warning(fmt.Sprintf("Failed to send Telegram message to %d: %v", chatID, err))
}
}
// newBot builds the underlying go-telegram/bot client. getMe is skipped here so
// the constructor stays non-blocking (outbound sends must work before Start
// runs); the token is actually verified in Start. Requests are routed through
// the network proxy when enabled, and poll errors are logged via postLog.
func (t *TelegramController) newBot() (*bot.Bot, error) {
opts := []bot.Option{
bot.WithSkipGetMe(),
bot.WithHTTPClient(pollTimeout, netproxy.HTTPClient(t.cfg.NetworkUseProxy, apiTimeout)),
bot.WithDefaultHandler(t.handleUpdate),
bot.WithNotAsyncHandlers(),
bot.WithErrorsHandler(func(err error) {
if errors.Is(err, bot.ErrorConflict) {
postLog.Error("Telegram getUpdates conflict (409): another poller is using the same bot token. Ensure only one instance is polling.")
} else {
postLog.Warning("Telegram Bot API error: " + err.Error())
}
}),
}
return bot.New(t.cfg.BotToken, opts...)
}