Files
go-telegram-bot/handlers.go
T
HugeFrog24 265f6676d8 Design
2026-03-05 08:41:48 +01:00

532 lines
22 KiB
Go

package main
import (
"context"
"errors"
"fmt"
"strconv"
"strings"
"github.com/go-telegram/bot"
"github.com/go-telegram/bot/models"
"github.com/liushuangls/go-anthropic/v2"
)
func (b *Bot) handleVoiceMessage(ctx context.Context, message *models.Message, userMsg Message, chatID, userID int64, username, firstName, lastName string, isPremium bool, languageCode string, messageTime int, isNewChat, isOwner bool, businessConnectionID string) {
// If ElevenLabs is not configured, respond with text — consistent with all other error paths.
if b.config.ElevenLabsAPIKey == "" {
if err := b.sendResponse(ctx, chatID, "I don't understand voice messages.", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending voice-unsupported message: %v", err)
}
return
}
if !b.hasScope(userID, ScopeTTSUse) {
if err := b.sendResponse(ctx, chatID, "You don't have permission to use voice features.", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending permission denied message: %v", err)
}
return
}
transcript, err := b.transcribeVoice(ctx, message.Voice.FileID)
if err != nil {
ErrorLogger.Printf("Error transcribing voice message from user %d: %v", userID, err)
if err := b.sendResponse(ctx, chatID, "Sorry, I couldn't understand your voice message.", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending transcription error message: %v", err)
}
return
}
// Replace the stored "[Voice message]" placeholder with the actual transcript,
// keeping the audit record intact while giving the LLM meaningful context.
if err := b.db.Model(&userMsg).Update("text", transcript).Error; err != nil {
ErrorLogger.Printf("Error updating voice transcript in DB: %v", err)
}
b.chatMemoriesMu.Lock()
if mem, exists := b.chatMemories[chatID]; exists {
for i := len(mem.Messages) - 1; i >= 0; i-- {
if mem.Messages[i].ID == userMsg.ID {
mem.Messages[i].Text = transcript
break
}
}
}
b.chatMemoriesMu.Unlock()
chatMemory := b.getOrCreateChatMemory(chatID)
contextMessages := b.prepareContextMessages(chatMemory)
response, err := b.getAnthropicResponse(ctx, contextMessages, isNewChat, isOwner, false, username, firstName, lastName, isPremium, languageCode, messageTime)
if err != nil {
ErrorLogger.Printf("Error getting Anthropic response for voice: %v", err)
if err := b.sendResponse(ctx, chatID, b.anthropicErrorResponse(err, userID), businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending anthropic error response: %v", err)
}
return
}
audioReader, err := b.generateSpeech(ctx, response)
if err != nil {
// TTS failed — fall back to text so the user still gets a reply.
ErrorLogger.Printf("Error generating speech, falling back to text: %v", err)
if err := b.sendResponse(ctx, chatID, response, businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending text fallback: %v", err)
}
return
}
// Store the assistant response before sending.
if _, err := b.screenOutgoingMessage(chatID, response); err != nil {
ErrorLogger.Printf("Error storing assistant voice response: %v", err)
}
params := &bot.SendAudioParams{
ChatID: chatID,
Audio: &models.InputFileUpload{Filename: "response.mp3", Data: audioReader},
}
if businessConnectionID != "" {
params.BusinessConnectionID = businessConnectionID
}
if _, err := b.tgBot.SendAudio(ctx, params); err != nil {
ErrorLogger.Printf("Error sending audio to chat %d: %v", chatID, err)
}
}
// anthropicErrorResponse returns the message to send back to the user when getAnthropicResponse
// fails. Admins and owners receive an actionable hint when the model is deprecated; regular users
// always get the generic fallback to avoid leaking internal details.
func (b *Bot) anthropicErrorResponse(err error, userID int64) string {
if errors.Is(err, ErrModelNotFound) && b.hasScope(userID, ScopeModelSet) {
return fmt.Sprintf(
"⚠️ Model `%s` is no longer available (deprecated or removed by Anthropic).\n"+
"Use /set_model <model-id> to switch. Current models: https://platform.claude.com/docs/en/about-claude/models/overview",
b.config.Model,
)
}
return "I'm sorry, I'm having trouble processing your request right now."
}
func (b *Bot) handleUpdate(ctx context.Context, tgBot *bot.Bot, update *models.Update) {
var message *models.Message
if update.Message != nil {
message = update.Message
} else if update.BusinessMessage != nil {
message = update.BusinessMessage
} else {
// No message to process
return
}
// Extract businessConnectionID if available
var businessConnectionID string
if update.BusinessConnection != nil {
businessConnectionID = update.BusinessConnection.ID
} else if message.BusinessConnectionID != "" {
businessConnectionID = message.BusinessConnectionID
}
if message.From == nil {
// Channel posts and some automated messages have no sender — ignore them.
// see: https://core.telegram.org/bots/api#message
return
}
chatID := message.Chat.ID
userID := message.From.ID
username := message.From.Username
firstName := message.From.FirstName
lastName := message.From.LastName
languageCode := message.From.LanguageCode
isPremium := message.From.IsPremium
messageTime := message.Date
text := message.Text
// Check if it's a new chat (before storing the message so the flag is accurate).
isNewChatFlag := b.isNewChat(chatID)
// Screen incoming message (store to DB + add to chat memory)
userMsg, err := b.screenIncomingMessage(message)
if err != nil {
ErrorLogger.Printf("Error storing user message: %v", err)
return
}
// Determine if the user is the owner
var isOwner bool
if b.db.Where("telegram_id = ? AND bot_id = ? AND is_owner = ?", userID, b.botID, true).First(&User{}).Error == nil {
isOwner = true
}
// Always create/get the user record — on the very first message and on all subsequent ones.
user, err := b.getOrCreateUser(userID, username, isOwner)
if err != nil {
ErrorLogger.Printf("Error getting or creating user: %v", err)
return
}
// Update the username if it has changed
if user.Username != username {
user.Username = username
if err := b.db.Save(&user).Error; err != nil {
ErrorLogger.Printf("Error updating user username: %v", err)
}
}
// Check if the message is a command — applies on every message, including the very first.
if message.Entities != nil {
for _, entity := range message.Entities {
if entity.Type == "bot_command" {
command := strings.TrimSpace(message.Text[entity.Offset : entity.Offset+entity.Length])
switch command {
case "/stats":
// Parse command parameters
parts := strings.Fields(message.Text)
// Default: show global stats
if len(parts) == 1 {
b.sendStats(ctx, chatID, userID, 0, businessConnectionID)
return
}
// Check for "user" parameter
if len(parts) >= 2 && parts[1] == "user" {
targetUserID := userID // Default to current user
// If a user ID is provided, parse it
if len(parts) >= 3 {
var parseErr error
targetUserID, parseErr = strconv.ParseInt(parts[2], 10, 64)
if parseErr != nil {
InfoLogger.Printf("User %d provided invalid user ID format: %s", userID, parts[2])
if err := b.sendResponse(ctx, chatID, "Invalid user ID format. Usage: /stats user [user_id]", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
}
b.sendStats(ctx, chatID, userID, targetUserID, businessConnectionID)
return
}
// Invalid parameter
if err := b.sendResponse(ctx, chatID, "Invalid command format. Usage: /stats or /stats user [user_id]", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
case "/whoami":
b.sendWhoAmI(ctx, chatID, userID, username, businessConnectionID)
return
case "/clear":
parts := strings.Fields(message.Text)
var targetUserID, targetChatID int64
if len(parts) > 1 {
var parseErr error
targetUserID, parseErr = strconv.ParseInt(parts[1], 10, 64)
if parseErr != nil {
InfoLogger.Printf("User %d provided invalid user ID format: %s", userID, parts[1])
if err := b.sendResponse(ctx, chatID, "Invalid user ID format. Usage: /clear [user_id] [chat_id]", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
}
if len(parts) > 2 {
var parseErr error
targetChatID, parseErr = strconv.ParseInt(parts[2], 10, 64)
if parseErr != nil {
InfoLogger.Printf("User %d provided invalid chat ID format: %s", userID, parts[2])
if err := b.sendResponse(ctx, chatID, "Invalid chat ID format. Usage: /clear [user_id] [chat_id]", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
}
b.clearChatHistory(ctx, chatID, userID, targetUserID, targetChatID, businessConnectionID, false)
return
case "/set_model":
if !b.hasScope(userID, ScopeModelSet) {
if err := b.sendResponse(ctx, chatID, "Permission denied. Only admins and owners can change the model.", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
parts := strings.Fields(message.Text)
if len(parts) < 2 || strings.TrimSpace(parts[1]) == "" {
if err := b.sendResponse(ctx, chatID, "Usage: /set_model <model-id>", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
newModel := strings.TrimSpace(parts[1])
// No upfront model validation:
// - The go-anthropic library constants are not enumerable at runtime (Go has no const reflection).
// - A live /v1/models probe would add a network round-trip and show in the API audit log.
// - An invalid model ID will produce a 404 on the next real message, which routes through
// anthropicErrorResponse and already delivers an actionable admin-facing hint.
if err := b.config.PersistModel(newModel); err != nil {
ErrorLogger.Printf("Failed to persist model change: %v", err)
if err := b.sendResponse(ctx, chatID, fmt.Sprintf("Model updated in memory to `%s`, but failed to save to config file: %v", newModel, err), businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
InfoLogger.Printf("Model changed to %s by user %d", newModel, userID)
if err := b.sendResponse(ctx, chatID, fmt.Sprintf("✅ Model updated to `%s` and saved to config.", newModel), businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
case "/clear_hard":
parts := strings.Fields(message.Text)
var targetUserID, targetChatID int64
if len(parts) > 1 {
var parseErr error
targetUserID, parseErr = strconv.ParseInt(parts[1], 10, 64)
if parseErr != nil {
InfoLogger.Printf("User %d provided invalid user ID format: %s", userID, parts[1])
if err := b.sendResponse(ctx, chatID, "Invalid user ID format. Usage: /clear_hard [user_id] [chat_id]", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
}
if len(parts) > 2 {
var parseErr error
targetChatID, parseErr = strconv.ParseInt(parts[2], 10, 64)
if parseErr != nil {
InfoLogger.Printf("User %d provided invalid chat ID format: %s", userID, parts[2])
if err := b.sendResponse(ctx, chatID, "Invalid chat ID format. Usage: /clear_hard [user_id] [chat_id]", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
}
b.clearChatHistory(ctx, chatID, userID, targetUserID, targetChatID, businessConnectionID, true)
return
}
}
}
}
// Rate limit check applies to all message types including stickers.
if !b.checkRateLimits(userID) {
b.sendRateLimitExceededMessage(ctx, chatID, businessConnectionID)
return
}
// Check if the message contains a voice note (context is built inside the handler
// after the transcript replaces the placeholder, so it must not be built here).
if message.Voice != nil {
b.handleVoiceMessage(ctx, message, userMsg, chatID, userID, username, firstName, lastName, isPremium, languageCode, messageTime, isNewChatFlag, isOwner, businessConnectionID)
return
}
// Build context once — shared by the sticker and text response paths.
chatMemory := b.getOrCreateChatMemory(chatID)
contextMessages := b.prepareContextMessages(chatMemory)
// Check if the message contains a sticker
if message.Sticker != nil {
b.handleStickerMessage(ctx, chatID, userMsg, message, contextMessages, businessConnectionID)
return
}
// Proceed only if the message contains text
if text == "" {
InfoLogger.Printf("Received a non-text message from user %d in chat %d", userID, chatID)
return
}
// Determine if the text contains only emojis
isEmojiOnly := isOnlyEmojis(text)
// Get response from Anthropic
response, err := b.getAnthropicResponse(ctx, contextMessages, isNewChatFlag, isOwner, isEmojiOnly, username, firstName, lastName, isPremium, languageCode, messageTime)
if err != nil {
ErrorLogger.Printf("Error getting Anthropic response: %v", err)
response = b.anthropicErrorResponse(err, userID)
}
// Send the response
if err := b.sendResponse(ctx, chatID, response, businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
return
}
}
func (b *Bot) sendRateLimitExceededMessage(ctx context.Context, chatID int64, businessConnectionID string) {
if err := b.sendResponse(ctx, chatID, "Rate limit exceeded. Please try again later.", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending rate limit exceeded message: %v", err)
}
}
func (b *Bot) handleStickerMessage(ctx context.Context, chatID int64, userMessage Message, message *models.Message, contextMessages []anthropic.Message, businessConnectionID string) {
// userMessage was already screened (stored + added to memory) by handleUpdate — do not call screenIncomingMessage again.
// Generate AI response about the sticker
response, err := b.generateStickerResponse(ctx, userMessage, contextMessages)
if err != nil {
ErrorLogger.Printf("Error generating sticker response: %v", err)
// Provide a fallback dynamic response based on sticker type
if message.Sticker.IsAnimated {
response = "Wow, that's a cool animated sticker!"
} else if message.Sticker.IsVideo {
response = "Interesting video sticker!"
} else {
response = "That's a cool sticker!"
}
}
// Send the response
if err := b.sendResponse(ctx, chatID, response, businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
return
}
}
func (b *Bot) generateStickerResponse(ctx context.Context, message Message, contextMessages []anthropic.Message) (string, error) {
// contextMessages already contains the sticker turn (added by screenIncomingMessage as
// "Sent a sticker: <emoji>"), so the full conversation history is preserved.
if message.StickerFileID != "" {
messageTime := int(message.Timestamp.Unix())
response, err := b.getAnthropicResponse(ctx, contextMessages, false, false, true, message.Username, "", "", false, "", messageTime)
if err != nil {
return "", err
}
return response, nil
}
return "Hmm, that's interesting!", nil
}
func (b *Bot) clearChatHistory(ctx context.Context, chatID int64, currentUserID int64, targetUserID int64, targetChatID int64, businessConnectionID string, hardDelete bool) {
// If targetUserID is provided and different from currentUserID, check permissions
if targetUserID != 0 && targetUserID != currentUserID {
requiredScope := ScopeHistoryClearAny
if hardDelete {
requiredScope = ScopeHistoryClearHardAny
}
if !b.hasScope(currentUserID, requiredScope) {
InfoLogger.Printf("User %d attempted to clear history for user %d without permission", currentUserID, targetUserID)
if err := b.sendResponse(ctx, chatID, "Permission denied. Only admins and owners can clear other users' histories.", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
// Check if the target user exists
var targetUser User
err := b.db.Where("telegram_id = ? AND bot_id = ?", targetUserID, b.botID).First(&targetUser).Error
if err != nil {
ErrorLogger.Printf("Error finding target user %d: %v", targetUserID, err)
if err := b.sendResponse(ctx, chatID, fmt.Sprintf("User with ID %d not found.", targetUserID), businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
} else {
// If no targetUserID is provided, set it to currentUserID
targetUserID = currentUserID
}
// Delete messages from the database
//
// Assumption: this bot is primarily used in private DMs, where each user's messages
// are stored with chat_id == their own user_id — not the caller's chat_id. Scoping
// a cross-user delete by the caller's chatID would therefore match 0 rows.
//
// When clearing another user's history the default (targetChatID == 0) deletes all
// of that user's messages across every chat for this bot — the natural meaning of
// "/clear <userID>" (wipe their entire history with the bot).
//
// When targetChatID != 0 the deletion is scoped to that specific chat, which is
// useful for group moderation ("/clear <userID> <chatID>").
var err error
if hardDelete {
// Permanently delete messages
if targetUserID == currentUserID {
// Own history — delete ALL messages (user + assistant) in the current chat.
err = b.db.Unscoped().Where("chat_id = ? AND bot_id = ?", chatID, b.botID).Delete(&Message{}).Error
InfoLogger.Printf("User %d permanently deleted their own chat history in chat %d", currentUserID, chatID)
} else {
if targetChatID != 0 {
// Chat-scoped: delete ALL messages (user + assistant) in the specified chat.
err = b.db.Unscoped().Where("chat_id = ? AND bot_id = ?", targetChatID, b.botID).Delete(&Message{}).Error
InfoLogger.Printf("Admin/owner %d permanently deleted chat history for user %d in chat %d", currentUserID, targetUserID, targetChatID)
} else {
// Bot-wide: delete all of the user's own messages across every chat, then delete
// assistant messages from their DM chat (where chat_id == user_id by Telegram convention).
err = b.db.Unscoped().Where("bot_id = ? AND user_id = ?", b.botID, targetUserID).Delete(&Message{}).Error
if err == nil {
err = b.db.Unscoped().Where("chat_id = ? AND bot_id = ? AND is_user = ?", targetUserID, b.botID, false).Delete(&Message{}).Error
}
InfoLogger.Printf("Admin/owner %d permanently deleted all chat history for user %d", currentUserID, targetUserID)
}
}
} else {
// Soft delete messages
if targetUserID == currentUserID {
// Own history — delete ALL messages (user + assistant) in the current chat.
err = b.db.Where("chat_id = ? AND bot_id = ?", chatID, b.botID).Delete(&Message{}).Error
InfoLogger.Printf("User %d soft deleted their own chat history in chat %d", currentUserID, chatID)
} else {
if targetChatID != 0 {
// Chat-scoped: delete ALL messages (user + assistant) in the specified chat.
err = b.db.Where("chat_id = ? AND bot_id = ?", targetChatID, b.botID).Delete(&Message{}).Error
InfoLogger.Printf("Admin/owner %d soft deleted chat history for user %d in chat %d", currentUserID, targetUserID, targetChatID)
} else {
// Bot-wide: delete all of the user's own messages across every chat, then delete
// assistant messages from their DM chat (where chat_id == user_id by Telegram convention).
err = b.db.Where("bot_id = ? AND user_id = ?", b.botID, targetUserID).Delete(&Message{}).Error
if err == nil {
err = b.db.Where("chat_id = ? AND bot_id = ? AND is_user = ?", targetUserID, b.botID, false).Delete(&Message{}).Error
}
InfoLogger.Printf("Admin/owner %d soft deleted all chat history for user %d", currentUserID, targetUserID)
}
}
}
if err != nil {
ErrorLogger.Printf("Error clearing chat history: %v", err)
if err := b.sendResponse(ctx, chatID, "Sorry, I couldn't clear the chat history.", businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
return
}
// Evict the relevant in-memory cache entry so the next access rebuilds from
// the now-clean DB. Applies to all cases: own history, cross-user
// scoped to a specific chat, and bot-wide cross-user clear.
b.chatMemoriesMu.Lock()
if targetUserID == currentUserID {
// Own history is always scoped to the current chat.
delete(b.chatMemories, chatID)
} else if targetChatID != 0 {
// Admin cleared a specific chat — evict that chat's cache.
delete(b.chatMemories, targetChatID)
} else {
// Bot-wide clear: primary use-case is DMs where chatID == userID.
delete(b.chatMemories, targetUserID)
}
b.chatMemoriesMu.Unlock()
// Send a confirmation message
var confirmationMessage string
if targetUserID == currentUserID {
confirmationMessage = "Your chat history has been cleared."
} else {
// Get the username of the target user if available
var targetUser User
err := b.db.Where("telegram_id = ? AND bot_id = ?", targetUserID, b.botID).First(&targetUser).Error
if err == nil && targetUser.Username != "" {
confirmationMessage = fmt.Sprintf("Chat history for user @%s (ID: %d) has been cleared.", targetUser.Username, targetUserID)
} else {
confirmationMessage = fmt.Sprintf("Chat history for user with ID %d has been cleared.", targetUserID)
}
}
if err := b.sendResponse(ctx, chatID, confirmationMessage, businessConnectionID); err != nil {
ErrorLogger.Printf("Error sending response: %v", err)
}
}