Telegram: 如何下載對話群組內所有的照片、影片與檔案 (完整教學)

from telethon import TelegramClient, sync
from telethon.tl.types import InputMessagesFilterPhotos, InputMessagesFilterVideo, InputMessagesFilterDocument
import os

# API憑證（從my.telegram.org獲取）
api_id = 123456        # 替換為您的api_id
api_hash = 'your_api_hash_here'  # 替換為您的api_hash
phone = '+1234567890'  # 替換為您的電話號碼

# 設置客戶端
client = TelegramClient('session_name', api_id, api_hash)
client.start(phone)

# 目標群組名稱或連結
group_entity = client.get_entity('https://t.me/group_name')  # 替換為您的群組連結

# 創建下載目錄
download_folder = 'telegram_downloads'
if not os.path.exists(download_folder):
    os.makedirs(download_folder)

# 下載照片
photos = client.get_messages(group_entity, limit=100, filter=InputMessagesFilterPhotos)
for photo in photos:
    client.download_media(photo, download_folder)
    print(f'下載照片: {photo.id}')

# 下載影片
videos = client.get_messages(group_entity, limit=100, filter=InputMessagesFilterVideo)
for video in videos:
    client.download_media(video, download_folder)
    print(f'下載影片: {video.id}')

# 下載文件
documents = client.get_messages(group_entity, limit=100, filter=InputMessagesFilterDocument)
for document in documents:
    client.download_media(document, download_folder)
    print(f'下載文件: {document.id}')

print('下載完成！檔案保存在', download_folder)
client.disconnect()