mirror of
https://github.com/ChronosX88/mastodon-bridge-bot.git
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Merge pull request #2 from abslimit/master
added message chunking and MD strip with links preserved
This commit is contained in:
ChronosX88
GitHub
commit
88b4c54d31
76
bridge.py
76
bridge.py
@ -3,6 +3,7 @@ import asyncio
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import logging
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import os
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import uuid
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import re
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import toml
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from mastodon import Mastodon
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@ -15,9 +16,18 @@ from telethon.utils import get_extension
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logging.basicConfig(level=logging.INFO)
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class BridgeBot:
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def __init__(self, cfg: dict):
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# RegExps
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self.re_md_links = re.compile(r'\[(.+)\]\((https?:\/\/[\w\d./?=#&-]+)\)')
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self.re_md_bold = re.compile(r'\*\*(.+)\*\*')
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self.re_md_italic = re.compile(r'__(.+)__')
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self.re_md_strike = re.compile(r'~~(.+)~~')
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self.re_md_mono = re.compile(r'`(.+)`')
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# Config init
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self.config = cfg
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self.mastodon_clients = {}
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self.mastodon_clients_visibility = {}
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self.tg_mstdn_mappings = {}
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for acc in cfg["mastodon"]["accounts"]:
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mastodon_client = Mastodon(
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@ -27,7 +37,10 @@ class BridgeBot:
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api_base_url=acc["api_base_url"]
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)
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self.mastodon_clients[acc["name"]] = mastodon_client
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try:
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self.mastodon_clients_visibility[acc["name"]] = acc["visibility"]
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except KeyError:
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self.mastodon_clients_visibility[acc["name"]] = None
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for m in cfg["mastodon"]["mappings"]:
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if self.tg_mstdn_mappings.get("tg_channel_handle", None) is None:
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self.tg_mstdn_mappings[m["tg_channel_handle"]] = []
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@ -56,32 +69,73 @@ class BridgeBot:
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if event.message.grouped_id is not None:
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logging.warning("Albums isn't supported yet")
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return
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logging.debug("dobbry vechur")
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logging.info(f"Catched new post from telegram channel {channel.username}")
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text: str = event.message.text
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if event.message.forward:
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logging.debug("The current post is forwarded")
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text = f"[from {event.message.forward.chat.title} (https://t.me/{event.message.forward.chat.username})]\n\n" + text
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# Common Mastodon message limit size. Change if you increased this limit.
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mstdn_post_limit = 500
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#full_text = event.message.raw_text
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full_text = event.message.text
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full_text = re.sub(self.re_md_links, r'\g<1> \g<2>', full_text)
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full_text = re.sub(self.re_md_bold, r'\g<1>', full_text)
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full_text = re.sub(self.re_md_italic, r'\g<1>', full_text)
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full_text = re.sub(self.re_md_strike, r'\g<1>', full_text)
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full_text = re.sub(self.re_md_mono, r'\g<1>', full_text)
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# URL of Telegram message
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tg_message_url = f"[https://t.me/{channel.username}/" + str(event.message.id) + "]\n\n"
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if event.message.file and not (event.message.photo or event.message.video or event.message.gif):
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full_text = full_text + "\n\n[К оригинальному посту приложен файл " + event.message.file.name + "]"
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# Size of full text
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full_text_size = len(full_text)
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# Mastodon max post size with TG message URL
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mstdn_post_size = mstdn_post_limit - len(tg_message_url)
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# Initial vars
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long_post_tail = ''
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reply_start = 0
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reply_end = 0
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# Post text if tg message lenght is lt mstdn post limit
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post_text: str = tg_message_url + full_text[reply_start:mstdn_post_size]
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# Set reply_start to non zero for future chunking and make mstdn post with continuaniton note
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if full_text_size > mstdn_post_size:
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long_post_tail = "\n\n[Откройте оригинальный пост по ссылке, либо прочитайте продолжение в ответах к посту.]"
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mstdn_post_size = mstdn_post_size - len(long_post_tail)
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reply_start = full_text.rfind(' ', reply_start, mstdn_post_size)
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post_text: str = tg_message_url + full_text[0:reply_start] + long_post_tail
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temp_file_path: str = ""
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# Downloading media if tg post contains it
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if (event.message.photo or event.message.video or event.message.gif) and not hasattr(event.message.media, "webpage"):
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logging.debug("Post contains the media, downloading it...")
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logging.info("Post contains the media, downloading it...")
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temp_file_name = uuid.uuid4()
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temp_file_path = f"/tmp/{temp_file_name}{get_extension(event.message.media)}"
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await self.tg_client.download_media(event.message.media, temp_file_path)
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# Starting to post messages
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for mstdn_acc_name in self.tg_mstdn_mappings[channel.username]:
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if self.mastodon_clients.get(mstdn_acc_name, None) is None:
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logging.error(f"{mstdn_acc_name} doesn't exists in mastodon.accounts section of config!")
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return
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# Make current client with config
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current_mastodon_client = self.mastodon_clients[mstdn_acc_name]
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current_mstdn_acc_visibility = self.mastodon_clients_visibility[mstdn_acc_name]
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# Attach media if tg post contains it
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if temp_file_path != "":
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mstdn_media_meta = current_mastodon_client.media_post(temp_file_path)
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current_mastodon_client.status_post(text, media_ids=[mstdn_media_meta])
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mstdn_media_meta = current_mastodon_client.media_post(temp_file_path)
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else:
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current_mastodon_client.toot(text)
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mstdn_media_meta = None
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# First root mstdn post
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reply_to = current_mastodon_client.status_post(post_text, media_ids=[mstdn_media_meta], visibility=current_mstdn_acc_visibility)
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tg_message_url = f"[Продолжение https://t.me/{channel.username}/" + str(event.message.id) + "]\n\n"
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# Chunking post into mstdn limit chunks and reply to root post
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while reply_start + mstdn_post_limit < full_text_size:
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reply_end = full_text.rfind(' ', reply_start, reply_start + mstdn_post_limit - len(tg_message_url))
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post_text: str = tg_message_url + full_text[reply_start+1:reply_end]
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reply_to = current_mastodon_client.status_post(post_text, in_reply_to_id=reply_to, visibility=current_mstdn_acc_visibility)
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reply_start = reply_end
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# Final chunk to reply to root post
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if reply_start > 0:
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post_text: str = tg_message_url + full_text[reply_start+1:full_text_size]
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reply_to = current_mastodon_client.status_post(post_text, in_reply_to_id=reply_to, visibility=current_mstdn_acc_visibility)
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# Delete media attach
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if temp_file_path != "":
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os.remove(temp_file_path)
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if __name__ == '__main__':
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parser = argparse.ArgumentParser()
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parser.add_argument('--config', type=str,
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@ -2,10 +2,6 @@
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account_name = "ChronosX"
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tg_channel_handle = "ChronosX_Channel"
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[[mastodon.mappings]]
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account_name = "floppy"
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tg_channel_handle = "netwhood_news"
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[[mastodon.accounts]]
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name = "ChronosX"
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client_id = "abc"
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@ -13,6 +9,11 @@
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access_token = "ghi"
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api_base_url = "mstdn.netwhood.online"
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[[mastodon.mappings]]
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account_name = "floppy"
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tg_channel_handle = "netwhood_news"
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[[mastodon.accounts]]
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name = "floppy"
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client_id = "abc"
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@ -24,3 +25,4 @@
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api_id = "123123"
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api_hash = "qwerty"
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session_file = "/path/to/session/file"
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channels = ['netwhood_news', 'ChronosX_Channel']
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