224 lines
5.7 KiB
Python
224 lines
5.7 KiB
Python
import logging
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import json
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import os
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import nio
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import discord
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def config_gen(config_file):
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config_dict = {
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"homeserver": "https://matrix.org",
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"room_id": "room:matrix.org",
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"username": "@name:matrix.org",
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"password": "my-secret-password",
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"channel_id": "channel",
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"token": "my-secret-token"
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}
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if not os.path.exists(config_file):
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with open(config_file, "w") as f:
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json.dump(config_dict, f, indent=4)
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print(f"Example configuration dumped to {config_file}")
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exit()
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with open(config_file, "r") as f:
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config = json.loads(f.read())
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return config
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config = config_gen("config.json")
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intents = discord.Intents.default()
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intents.members = True
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discord_client = discord.Client(intents=intents)
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logging.basicConfig(level=logging.INFO)
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@discord_client.event
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async def on_ready():
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print(f"Logged in as {discord_client.user}")
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# Start Matrix bot
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await create_matrix_client()
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@discord_client.event
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async def on_message(message):
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# Don't respond to bots/webhooks
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if message.author.bot:
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return
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# Replace mention/emote IDs with names
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content = await process(message.content, "emote_")
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content = await process(content, "mention")
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content = f"<{message.author.name}> {content}"
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# Append attachments to message
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for attachment in message.attachments:
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content += f"\n{attachment.url}"
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if str(message.channel.id) == config["channel_id"]:
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await message_send(content)
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async def process(message, category):
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# Replace emote names with emote IDs (Matrix -> Discord)
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if category == "emote":
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start = end = ":"
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start_ = 1
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# Replace emote IDs with emote names (Discord -> Matrix)
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elif category == "emote_":
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start = "<:"
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start_ = 2
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end = ">"
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# Replace mentioned user IDs with names (Discord -> Matrix)
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elif category == "mention":
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start = "<@!"
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start_ = 3
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end = ">"
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for item in message.split():
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if item.startswith(start) and item.endswith(end):
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item_ = item[start_:-1]
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if category == "emote":
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emote = discord.utils.get(discord_client.emojis, name=item_)
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if emote is not None:
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message = message.replace(item, str(emote))
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elif category == "emote_":
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emote_name = item_.split(":")[0]
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message = message.replace(item, f":{emote_name}:")
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elif category == "mention":
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user = discord_client.get_user(int(item_))
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message = message.replace(item, f"@{user.name}")
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return message
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async def webhook_send(author, avatar, message):
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# Get Discord channel from channel ID
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channel = int(config["channel_id"])
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channel = discord_client.get_channel(channel)
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# Create webhook if it doesn't exist
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hook_name = "matrix_bridge"
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hooks = await channel.webhooks()
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hook = discord.utils.get(hooks, name=hook_name)
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if hook is None:
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hook = await channel.create_webhook(name=hook_name)
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# Replace emote names
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message = await process(message, "emote")
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await hook.send(username=author, avatar_url=avatar, content=message)
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async def partial_mention(user):
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# Get Discord channel from channel ID
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channel = int(config["channel_id"])
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channel = discord_client.get_channel(channel)
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# Get guild to parse member list
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guild = channel.guild
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# Remove "@"
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user = user[1:]
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for member in await guild.query_members(query=user):
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user_mention = f"<@!{member.id}>"
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return user_mention
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return None
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async def create_matrix_client():
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homeserver = config["homeserver"]
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username = config["username"]
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password = config["password"]
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timeout = 30000
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global matrix_client
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matrix_client = nio.AsyncClient(homeserver, username)
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print(await matrix_client.login(password))
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# Sync once before adding callback to avoid acting on old messages
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await matrix_client.sync(timeout)
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matrix_client.add_event_callback(message_callback, (nio.RoomMessageText,
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nio.RoomMessageMedia))
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# Sync forever
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await matrix_client.sync_forever(timeout=timeout)
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await matrix_client.logout()
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await matrix_client.close()
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async def message_send(message):
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await matrix_client.room_send(
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room_id=config["room_id"],
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message_type="m.room.message",
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content={
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"msgtype": "m.text",
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"body": message
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}
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)
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async def message_callback(room, event):
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message = event.body
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if not message:
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return
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# Don't reply to ourselves
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if event.sender == matrix_client.user:
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return
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author = event.sender[1:]
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avatar = None
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homeserver = author.split(":")[-1]
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url = "https://matrix.org/_matrix/media/r0/download"
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# Replace partial mention of Discord user with ID
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if message.startswith("@"):
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user = message.split()[0]
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user_mention = await partial_mention(user)
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if user_mention is not None:
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message = message.replace(user, user_mention)
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# Get attachments
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try:
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attachment = event.url.split("/")[-1]
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message += f"\n{url}/{homeserver}/{attachment}"
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except AttributeError:
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pass
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# Get avatar
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for user in room.users.values():
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if user.user_id == event.sender:
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if user.avatar_url:
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avatar = user.avatar_url.split("/")[-1]
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avatar = f"{url}/{homeserver}/{avatar}"
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break
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await webhook_send(author, avatar, message)
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def main():
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# Start Discord bot
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discord_client.run(config["token"])
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if __name__ == "__main__":
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main()
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