yanyuyijian/Scripts/py/tg_channel_downloader.py
2021-08-01 21:19:59 +08:00

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# !/usr/bin/env python3
import difflib
import os
import re
import time
import asyncio
import asyncio.subprocess
import logging
from telethon import TelegramClient, events, errors
from telethon.tl.types import MessageMediaWebPage
#***********************************************************************************#
api_id = 1234567 # your telegram api id
api_hash = '1234567890abcdefgh' # your telegram api hash
bot_token = '1234567890:ABCDEFGHIJKLMNOPQRST' # your bot_token
admin_id = 1234567890 # your chat id
save_path = '/root/Help' # file save path
upload_file_set = False # set upload file to google drive
drive_id = '5FyJClXmsqNw0-Rz19' # google teamdrive id 如果使用OD删除''内的内容即可。
drive_name = 'gc' # rclone drive name
max_num = 5 # 同时下载数量
# filter file name/文件名过滤
filter_list = ['你好,欢迎加入 Quantumu', '\n']
# filter chat id /指定某些频道下载
whitelist = []
donwload_all_chat = False # 监控所有你加入的频道,收到的新消息如果包含媒体都会下载,默认关闭
filter_file_name = ['sh'] # 指定文件后缀可以填jpg、avi、mkv、rar等。
pip install telethon cryptg pillow aiohttp hachoir # 所需的依赖模块
#***********************************************************************************#
logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
level=logging.WARNING)
logger = logging.getLogger(__name__)
queue = asyncio.Queue()
# 文件夹/文件名称处理
def validateTitle(title):
r_str = r"[\/\\\:\*\?\"\<\>\|\n]" # '/ \ : * ? " < > |'
new_title = re.sub(r_str, "_", title) # 替换为下划线
return new_title
# 获取相册标题
async def get_group_caption(message):
group_caption = ""
entity = await client.get_entity(message.to_id)
async for msg in client.iter_messages(entity=entity, reverse=True, offset_id=message.id - 9, limit=10):
if msg.grouped_id == message.grouped_id:
if msg.text != "":
group_caption = msg.text
return group_caption
return group_caption
# 获取本地时间
def get_local_time():
return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
# 判断相似率
def get_equal_rate(str1, str2):
return difflib.SequenceMatcher(None, str1, str2).quick_ratio()
# 返回文件大小
def bytes_to_string(byte_count):
suffix_index = 0
while byte_count >= 1024:
byte_count /= 1024
suffix_index += 1
return '{:.2f}{}'.format(
byte_count, [' bytes', 'KB', 'MB', 'GB', 'TB'][suffix_index]
)
async def worker(name):
while True:
queue_item = await queue.get()
message = queue_item[0]
chat_title = queue_item[1]
entity = queue_item[2]
file_name = queue_item[3]
for filter_file in filter_file_name:
if not file_name.endswith(filter_file):
return
dirname = validateTitle(f'{chat_title}({entity.id})')
datetime_dir_name = message.date.strftime("%Y年%m月")
file_save_path = os.path.join(save_path, dirname, datetime_dir_name)
if not os.path.exists(file_save_path):
os.makedirs(file_save_path)
# 判断文件是否在本地存在
if file_name in os.listdir(file_save_path):
os.remove(os.path.join(file_save_path, file_name))
print(f"{get_local_time()} 开始下载: {chat_title} - {file_name}")
try:
loop = asyncio.get_event_loop()
task = loop.create_task(client.download_media(
message, os.path.join(file_save_path, file_name)))
await asyncio.wait_for(task, timeout=3600)
if upload_file_set:
proc = await asyncio.create_subprocess_exec('fclone',
'move',
os.path.join(
file_save_path, file_name),
f"{drive_name}:{{{drive_id}}}/{dirname}/{datetime_dir_name}",
'--ignore-existing',
stdout=asyncio.subprocess.DEVNULL)
await proc.wait()
if proc.returncode == 0:
print(f"{get_local_time()} - {file_name} 下载并上传完成")
except (errors.FileReferenceExpiredError, asyncio.TimeoutError):
logging.warning(f'{get_local_time()} - {file_name} 出现异常,重新尝试下载!')
async for new_message in client.iter_messages(entity=entity, offset_id=message.id - 1, reverse=True,
limit=1):
await queue.put((new_message, chat_title, entity, file_name))
except Exception as e:
print(f"{get_local_time()} - {file_name} {e}")
await bot.send_message(admin_id, f'Error!\n\n{e}\n\n{file_name}')
finally:
queue.task_done()
# 无论是否上传成功都删除文件。
if upload_file_set:
try:
os.remove(os.path.join(file_save_path, file_name))
except:
pass
@events.register(events.NewMessage(pattern='/start', from_users=admin_id))
async def handler(update):
text = update.message.text.split(' ')
if len(text) == 1:
await bot.send_message(admin_id, '参数错误,请按照参考格式输入:\n\n '
'<i>/start https://t.me/fkdhlg 0 </i>\n\n'
'Tips:如果不输入offset_id默认从第一条开始下载。', parse_mode='HTML')
return
elif len(text) == 2:
chat_id = text[1]
try:
entity = await client.get_entity(chat_id)
chat_title = entity.title
offset_id = 0
await update.reply(f'开始从{chat_title}的第一条消息下载。')
except:
await update.reply('chat输入错误请输入频道或群组的链接')
return
elif len(text) == 3:
chat_id = text[1]
offset_id = int(text[2])
try:
entity = await client.get_entity(chat_id)
chat_title = entity.title
await update.reply(f'开始从{chat_title}的第{offset_id}条消息下载。')
except:
await update.reply('chat输入错误请输入频道或群组的链接')
return
else:
await bot.send_message(admin_id, '参数错误,请按照参考格式输入:\n\n '
'<i>/start https://t.me/fkdhlg 0 </i>\n\n'
'Tips:如果不输入offset_id默认从第一条开始下载。', parse_mode='HTML')
return
if chat_title:
print(f'{get_local_time()} - 开始下载:{chat_title}({entity.id}) - {offset_id}')
last_msg_id = 0
async for message in client.iter_messages(entity, offset_id=offset_id, reverse=True, limit=None):
if message.media:
# 如果是一组媒体
caption = await get_group_caption(message) if (
message.grouped_id and message.text == "") else message.text
# 过滤文件名称中的广告等词语
if len(filter_list) and caption != "":
for filter_keyword in filter_list:
caption = caption.replace(filter_keyword, "")
# 如果文件文件名不是空字符串,则进行过滤和截取,避免文件名过长导致的错误
caption = "" if caption == "" else f'{validateTitle(caption)} - '[
:50]
file_name = ''
# 如果是文件
if message.document:
if type(message.media) == MessageMediaWebPage:
continue
if message.media.document.mime_type == "image/webp":
continue
if message.media.document.mime_type == "application/x-tgsticker":
continue
for i in message.document.attributes:
try:
file_name = i.file_name
except:
continue
if file_name == '':
file_name = f'{message.id} - {caption}.{message.document.mime_type.split("/")[-1]}'
else:
# 如果文件名中已经包含了标题,则过滤标题
if get_equal_rate(caption, file_name) > 0.6:
caption = ""
file_name = f'{message.id} - {caption}{file_name}'
elif message.photo:
file_name = f'{message.id} - {caption}{message.photo.id}.jpg'
else:
continue
await queue.put((message, chat_title, entity, file_name))
last_msg_id = message.id
await bot.send_message(admin_id, f'{chat_title} all message added to task queue, last message is{last_msg_id}')
@events.register(events.NewMessage())
async def all_chat_download(update):
message = update.message
if message.media:
chat_id = update.message.to_id
entity = await client.get_entity(chat_id)
if not entity.id in whitelist:
return
chat_title = entity.title
# 如果是一组媒体
caption = await get_group_caption(message) if (
message.grouped_id and message.text == "") else message.text
if caption != "":
for fw in filter_list:
caption = caption.replace(fw, '')
# 如果文件文件名不是空字符串,则进行过滤和截取,避免文件名过长导致的错误
caption = "" if caption == "" else f'{validateTitle(caption)} - '[:50]
file_name = ''
# 如果是文件
if message.document:
try:
if type(message.media) == MessageMediaWebPage:
return
if message.media.document.mime_type == "image/webp":
file_name = f'{message.media.document.id}.webp'
if message.media.document.mime_type == "application/x-tgsticker":
file_name = f'{message.media.document.id}.tgs'
for i in message.document.attributes:
try:
file_name = i.file_name
except:
continue
if file_name == '':
file_name = f'{message.id} - {caption}.{message.document.mime_type.split("/")[-1]}'
else:
# 如果文件名中已经包含了标题,则过滤标题
if get_equal_rate(caption, file_name) > 0.6:
caption = ""
file_name = f'{message.id} - {caption}{file_name}'
except:
print(message.media)
elif message.photo:
file_name = f'{message.id} - {caption}{message.photo.id}.jpg'
else:
return
# 过滤文件名称中的广告等词语
for filter_keyword in filter_list:
file_name = file_name.replace(filter_keyword, "")
print(chat_title, file_name)
await queue.put((message, chat_title, entity, file_name))
if __name__ == '__main__':
bot = TelegramClient('telegram_channel_downloader_bot',
api_id, api_hash).start(bot_token=str(bot_token))
client = TelegramClient(
'telegram_channel_downloader', api_id, api_hash).start()
bot.add_event_handler(handler)
if donwload_all_chat:
client.add_event_handler(all_chat_download)
tasks = []
try:
for i in range(max_num):
loop = asyncio.get_event_loop()
task = loop.create_task(worker(f'worker-{i}'))
tasks.append(task)
print('Successfully started (Press Ctrl+C to stop)')
client.run_until_disconnected()
finally:
for task in tasks:
task.cancel()
client.disconnect()
print('Stopped!')