Basic proxy functionality fixed
This commit is contained in:
Ske
@@ -1,17 +1,16 @@
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import ciso8601
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from io import BytesIO
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import discord
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import logging
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import re
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import time
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from typing import List, Optional
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import aiohttp
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import discord
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from typing import List
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from pluralkit import db
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from pluralkit.bot import channel_logger, utils, embeds
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from pluralkit.bot import utils
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logger = logging.getLogger("pluralkit.bot.proxy")
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def extract_leading_mentions(message_text):
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# This regex matches one or more mentions at the start of a message, separated by any amount of spaces
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match = re.match(r"^(<(@|@!|#|@&|a?:\w+:)\d+>\s*)+", message_text)
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@@ -34,7 +33,9 @@ def match_member_proxy_tags(member: db.ProxyMember, message_text: str):
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# Ignore mentions at the very start of the message, and match proxy tags after those
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message_text, leading_mentions = extract_leading_mentions(message_text)
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logger.debug("Matching text '{}' and leading mentions '{}' to proxy tags {}text{}".format(message_text, leading_mentions, prefix, suffix))
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logger.debug(
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"Matching text '{}' and leading mentions '{}' to proxy tags {}text{}".format(message_text, leading_mentions,
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prefix, suffix))
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if message_text.startswith(member.prefix or "") and message_text.endswith(member.suffix or ""):
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prefix_length = len(prefix)
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@@ -59,243 +60,314 @@ def match_proxy_tags(members: List[db.ProxyMember], message_text: str):
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for member in members:
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match = match_member_proxy_tags(member, message_text)
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if match is not None: # Using "is not None" because an empty string is OK here too
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if match is not None: # Using "is not None" because an empty string is OK here too
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logger.debug("Matched member {} with inner text '{}'".format(member.hid, match))
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return member, match
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def get_message_attachment_url(message: discord.Message):
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async def get_or_create_webhook_for_channel(conn, channel: discord.TextChannel):
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# First, check if we have one saved in the DB
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webhook_from_db = await db.get_webhook(conn, channel.id)
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if webhook_from_db:
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webhook_id, webhook_token = webhook_from_db
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session = channel._state.http._session
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hook = discord.Webhook.partial(webhook_id, webhook_token, adapter=discord.AsyncWebhookAdapter(session))
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# Workaround for https://github.com/Rapptz/discord.py/issues/1242
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hook._adapter.store_user = hook._adapter._store_user
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return hook
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# If not, we create one and save it
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created_webhook = await channel.create_webhook(name="PluralKit Proxy Webhook")
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await db.add_webhook(conn, channel.id, created_webhook.id, created_webhook.token)
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return created_webhook
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async def make_attachment_file(message: discord.Message):
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if not message.attachments:
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return None
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attachment = message.attachments[0]
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if "proxy_url" in attachment:
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return attachment["proxy_url"]
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first_attachment = message.attachments[0]
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if "url" in attachment:
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return attachment["url"]
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# Copy the file data to the buffer
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# TODO: do this without buffering... somehow
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bio = BytesIO()
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await first_attachment.save(bio)
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return discord.File(bio, first_attachment.filename)
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# TODO: possibly move this to bot __init__ so commands can access it too
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class WebhookPermissionError(Exception):
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pass
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async def do_proxy_message(conn, original_message: discord.Message, proxy_member: db.ProxyMember,
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inner_text: str):
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# Send the message through the webhook
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webhook = await get_or_create_webhook_for_channel(conn, original_message.channel)
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sent_message = await webhook.send(
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content=inner_text,
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username=proxy_member.name,
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avatar_url=proxy_member.avatar_url,
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file=await make_attachment_file(original_message),
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wait=True
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)
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# Save the proxied message in the database
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await db.add_message(conn, sent_message.id, original_message.channel.id, proxy_member.id,
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original_message.author.id)
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# TODO: log message in log channel
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class DeletionPermissionError(Exception):
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pass
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async def try_proxy_message(message: discord.Message, conn) -> bool:
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# Don't bother proxying in DMs with the bot
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if isinstance(message.channel, discord.abc.PrivateChannel):
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return False
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# Return every member associated with the account
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members = await db.get_members_by_account(conn, message.author.id)
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proxy_match = match_proxy_tags(members, message.content)
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if not proxy_match:
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# No proxy tags match here, we done
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return False
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class Proxy:
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def __init__(self, client: discord.Client, token: str, logger: channel_logger.ChannelLogger):
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self.logger = logging.getLogger("pluralkit.bot.proxy")
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self.session = aiohttp.ClientSession()
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self.client = client
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self.token = token
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self.channel_logger = logger
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member, inner_text = proxy_match
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async def save_channel_webhook(self, conn, channel: discord.Channel, id: str, token: str) -> (str, str):
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await db.add_webhook(conn, channel.id, id, token)
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return id, token
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# Sanitize inner text for @everyones and such
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inner_text = utils.sanitize(inner_text)
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async def create_and_add_channel_webhook(self, conn, channel: discord.Channel) -> (str, str):
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# This method is only called if there's no webhook found in the DB (and hopefully within a transaction)
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# No need to worry about error handling if there's a DB conflict (which will throw an exception because DB constraints)
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req_headers = {"Authorization": "Bot {}".format(self.token)}
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# If we don't have an inner text OR an attachment, we cancel because the hook can't send that
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if not inner_text and not message.attachments:
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return False
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# First, check if there's already a webhook belonging to the bot
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async with self.session.get("https://discordapp.com/api/v6/channels/{}/webhooks".format(channel.id),
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headers=req_headers) as resp:
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if resp.status == 200:
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webhooks = await resp.json()
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for webhook in webhooks:
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if webhook["user"]["id"] == self.client.user.id:
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# This webhook belongs to us, we can use that, return it and save it
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return await self.save_channel_webhook(conn, channel, webhook["id"], webhook["token"])
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elif resp.status == 403:
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self.logger.warning(
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"Did not have permission to fetch webhook list (server={}, channel={})".format(channel.server.id,
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channel.id))
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raise WebhookPermissionError()
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else:
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raise discord.HTTPException(resp, await resp.text())
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# So, we now have enough information to successfully proxy a message
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async with conn.transaction():
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await do_proxy_message(conn, message, member, inner_text)
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return True
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# Then, try submitting a new one
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req_data = {"name": "PluralKit Proxy Webhook"}
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async with self.session.post("https://discordapp.com/api/v6/channels/{}/webhooks".format(channel.id),
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json=req_data, headers=req_headers) as resp:
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if resp.status == 200:
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webhook = await resp.json()
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return await self.save_channel_webhook(conn, channel, webhook["id"], webhook["token"])
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elif resp.status == 403:
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self.logger.warning(
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"Did not have permission to create webhook (server={}, channel={})".format(channel.server.id,
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channel.id))
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raise WebhookPermissionError()
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else:
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raise discord.HTTPException(resp, await resp.text())
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# Should not be reached without an exception being thrown
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async def get_webhook_for_channel(self, conn, channel: discord.Channel):
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async with conn.transaction():
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hook_match = await db.get_webhook(conn, channel.id)
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if not hook_match:
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# We don't have a webhook, create/add one
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return await self.create_and_add_channel_webhook(conn, channel)
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else:
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return hook_match
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async def do_proxy_message(self, conn, member: db.ProxyMember, original_message: discord.Message, text: str,
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attachment_url: str, has_already_retried=False):
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hook_id, hook_token = await self.get_webhook_for_channel(conn, original_message.channel)
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form_data = aiohttp.FormData()
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form_data.add_field("username", "{} {}".format(member.name, member.tag or "").strip())
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if text:
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form_data.add_field("content", text)
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if attachment_url:
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attachment_resp = await self.session.get(attachment_url)
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form_data.add_field("file", attachment_resp.content, content_type=attachment_resp.content_type,
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filename=attachment_resp.url.name)
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if member.avatar_url:
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form_data.add_field("avatar_url", member.avatar_url)
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async with self.session.post(
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"https://discordapp.com/api/v6/webhooks/{}/{}?wait=true".format(hook_id, hook_token),
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data=form_data) as resp:
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if resp.status == 200:
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message = await resp.json()
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await db.add_message(conn, message["id"], message["channel_id"], member.id, original_message.author.id)
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try:
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await self.client.delete_message(original_message)
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except discord.Forbidden:
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self.logger.warning(
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"Did not have permission to delete original message (server={}, channel={})".format(
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original_message.server.id, original_message.channel.id))
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raise DeletionPermissionError()
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except discord.NotFound:
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self.logger.warning("Tried to delete message when proxying, but message was already gone (server={}, channel={})".format(original_message.server.id, original_message.channel.id))
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message_image = None
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if message["attachments"]:
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first_attachment = message["attachments"][0]
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if "width" in first_attachment and "height" in first_attachment:
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# Only log attachments that are actually images
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message_image = first_attachment["url"]
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await self.channel_logger.log_message_proxied(conn,
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server_id=original_message.server.id,
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channel_name=original_message.channel.name,
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channel_id=original_message.channel.id,
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sender_name=original_message.author.name,
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sender_disc=original_message.author.discriminator,
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sender_id=original_message.author.id,
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member_name=member.name,
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member_hid=member.hid,
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member_avatar_url=member.avatar_url,
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system_name=member.system_name,
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system_hid=member.system_hid,
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message_text=text,
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message_image=message_image,
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message_timestamp=ciso8601.parse_datetime(
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message["timestamp"]),
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message_id=message["id"])
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elif resp.status == 404 and not has_already_retried:
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# Webhook doesn't exist. Delete it from the DB, create, and add a new one
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self.logger.warning("Webhook registered in DB doesn't exist, deleting hook from DB, re-adding, and trying again (channel={}, hook={})".format(original_message.channel.id, hook_id))
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await db.delete_webhook(conn, original_message.channel.id)
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await self.create_and_add_channel_webhook(conn, original_message.channel)
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# Then try again all over, making sure to not retry again and go in a loop should it continually fail
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return await self.do_proxy_message(conn, member, original_message, text, attachment_url, has_already_retried=True)
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else:
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raise discord.HTTPException(resp, await resp.text())
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async def try_proxy_message(self, conn, message: discord.Message):
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# Can't proxy in DMs, webhook creation will explode
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if message.channel.is_private:
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return False
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# Big fat query to find every member associated with this account
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# Returned member object has a few more keys (system tag, for example)
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members = await db.get_members_by_account(conn, account_id=message.author.id)
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match = match_proxy_tags(members, message.content)
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if not match:
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return False
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member, text = match
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attachment_url = get_message_attachment_url(message)
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# Can't proxy a message with no text AND no attachment
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if not text and not attachment_url:
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self.logger.debug("Skipping message because of no text and no attachment")
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return False
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# Remember to sanitize the text (remove @everyones and such)
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text = utils.sanitize(text)
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try:
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async with conn.transaction():
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await self.do_proxy_message(conn, member, message, text=text, attachment_url=attachment_url)
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except WebhookPermissionError:
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embed = embeds.error("PluralKit does not have permission to manage webhooks for this channel. Contact your local server administrator to fix this.")
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await self.client.send_message(message.channel, embed=embed)
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except DeletionPermissionError:
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embed = embeds.error("PluralKit does not have permission to delete messages in this channel. Contact your local server administrator to fix this.")
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await self.client.send_message(message.channel, embed=embed)
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return True
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async def try_delete_message(self, conn, message_id: str, check_user_id: Optional[str], delete_message: bool, deleted_by_moderator: bool):
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async with conn.transaction():
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# Find the message in the DB, and make sure it's sent by the user (if we need to check)
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if check_user_id:
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db_message = await db.get_message_by_sender_and_id(conn, message_id=message_id, sender_id=check_user_id)
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else:
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db_message = await db.get_message(conn, message_id=message_id)
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if db_message:
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self.logger.debug("Deleting message {}".format(message_id))
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channel = self.client.get_channel(str(db_message.channel))
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# If we should also delete the actual message, do that
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if delete_message:
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message = await self.client.get_message(channel, message_id)
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try:
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await self.client.delete_message(message)
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except discord.Forbidden:
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self.logger.warning(
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"Did not have permission to remove message, aborting deletion (server={}, channel={})".format(
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channel.server.id, channel.id))
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return
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# Remove it from the DB
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await db.delete_message(conn, message_id)
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# Then log deletion to logging channel
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await self.channel_logger.log_message_deleted(conn,
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server_id=channel.server.id,
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channel_name=channel.name,
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member_name=db_message.name,
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member_hid=db_message.hid,
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member_avatar_url=db_message.avatar_url,
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system_name=db_message.system_name,
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system_hid=db_message.system_hid,
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message_text=db_message.content,
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message_id=message_id,
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deleted_by_moderator=deleted_by_moderator)
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async def handle_reaction(self, conn, user_id: str, message_id: str, emoji: str):
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if emoji == "❌":
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await self.try_delete_message(conn, message_id, check_user_id=user_id, delete_message=True, deleted_by_moderator=False)
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async def handle_deletion(self, conn, message_id: str):
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# Don't delete the message, it's already gone at this point, just handle DB deletion and logging
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await self.try_delete_message(conn, message_id, check_user_id=None, delete_message=False, deleted_by_moderator=True)
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# # TODO: possibly move this to bot __init__ so commands can access it too
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# class WebhookPermissionError(Exception):
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# pass
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#
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#
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# class DeletionPermissionError(Exception):
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# pass
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#
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#
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# class Proxy:
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# def __init__(self, client: discord.Client, token: str, logger: channel_logger.ChannelLogger):
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# self.logger = logging.getLogger("pluralkit.bot.proxy")
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# self.session = aiohttp.ClientSession()
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# self.client = client
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# self.token = token
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# self.channel_logger = logger
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#
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# async def save_channel_webhook(self, conn, channel: discord.Channel, id: str, token: str) -> (str, str):
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# await db.add_webhook(conn, channel.id, id, token)
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# return id, token
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#
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# async def create_and_add_channel_webhook(self, conn, channel: discord.Channel) -> (str, str):
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# # This method is only called if there's no webhook found in the DB (and hopefully within a transaction)
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# # No need to worry about error handling if there's a DB conflict (which will throw an exception because DB constraints)
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# req_headers = {"Authorization": "Bot {}".format(self.token)}
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#
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# # First, check if there's already a webhook belonging to the bot
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# async with self.session.get("https://discordapp.com/api/v6/channels/{}/webhooks".format(channel.id),
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# headers=req_headers) as resp:
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# if resp.status == 200:
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# webhooks = await resp.json()
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# for webhook in webhooks:
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# if webhook["user"]["id"] == self.client.user.id:
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# # This webhook belongs to us, we can use that, return it and save it
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# return await self.save_channel_webhook(conn, channel, webhook["id"], webhook["token"])
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# elif resp.status == 403:
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# self.logger.warning(
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# "Did not have permission to fetch webhook list (server={}, channel={})".format(channel.server.id,
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# channel.id))
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# raise WebhookPermissionError()
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# else:
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# raise discord.HTTPException(resp, await resp.text())
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#
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||||
# # Then, try submitting a new one
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# req_data = {"name": "PluralKit Proxy Webhook"}
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# async with self.session.post("https://discordapp.com/api/v6/channels/{}/webhooks".format(channel.id),
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# json=req_data, headers=req_headers) as resp:
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# if resp.status == 200:
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# webhook = await resp.json()
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# return await self.save_channel_webhook(conn, channel, webhook["id"], webhook["token"])
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# elif resp.status == 403:
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# self.logger.warning(
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# "Did not have permission to create webhook (server={}, channel={})".format(channel.server.id,
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# channel.id))
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# raise WebhookPermissionError()
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# else:
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# raise discord.HTTPException(resp, await resp.text())
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#
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# # Should not be reached without an exception being thrown
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||||
#
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# async def get_webhook_for_channel(self, conn, channel: discord.Channel):
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# async with conn.transaction():
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# hook_match = await db.get_webhook(conn, channel.id)
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# if not hook_match:
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# # We don't have a webhook, create/add one
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# return await self.create_and_add_channel_webhook(conn, channel)
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# else:
|
||||
# return hook_match
|
||||
#
|
||||
# async def do_proxy_message(self, conn, member: db.ProxyMember, original_message: discord.Message, text: str,
|
||||
# attachment_url: str, has_already_retried=False):
|
||||
# hook_id, hook_token = await self.get_webhook_for_channel(conn, original_message.channel)
|
||||
#
|
||||
# form_data = aiohttp.FormData()
|
||||
# form_data.add_field("username", "{} {}".format(member.name, member.tag or "").strip())
|
||||
#
|
||||
# if text:
|
||||
# form_data.add_field("content", text)
|
||||
#
|
||||
# if attachment_url:
|
||||
# attachment_resp = await self.session.get(attachment_url)
|
||||
# form_data.add_field("file", attachment_resp.content, content_type=attachment_resp.content_type,
|
||||
# filename=attachment_resp.url.name)
|
||||
#
|
||||
# if member.avatar_url:
|
||||
# form_data.add_field("avatar_url", member.avatar_url)
|
||||
#
|
||||
# async with self.session.post(
|
||||
# "https://discordapp.com/api/v6/webhooks/{}/{}?wait=true".format(hook_id, hook_token),
|
||||
# data=form_data) as resp:
|
||||
# if resp.status == 200:
|
||||
# message = await resp.json()
|
||||
#
|
||||
# await db.add_message(conn, message["id"], message["channel_id"], member.id, original_message.author.id)
|
||||
#
|
||||
# try:
|
||||
# await self.client.delete_message(original_message)
|
||||
# except discord.Forbidden:
|
||||
# self.logger.warning(
|
||||
# "Did not have permission to delete original message (server={}, channel={})".format(
|
||||
# original_message.server.id, original_message.channel.id))
|
||||
# raise DeletionPermissionError()
|
||||
# except discord.NotFound:
|
||||
# self.logger.warning("Tried to delete message when proxying, but message was already gone (server={}, channel={})".format(original_message.server.id, original_message.channel.id))
|
||||
#
|
||||
# message_image = None
|
||||
# if message["attachments"]:
|
||||
# first_attachment = message["attachments"][0]
|
||||
# if "width" in first_attachment and "height" in first_attachment:
|
||||
# # Only log attachments that are actually images
|
||||
# message_image = first_attachment["url"]
|
||||
#
|
||||
# await self.channel_logger.log_message_proxied(conn,
|
||||
# server_id=original_message.server.id,
|
||||
# channel_name=original_message.channel.name,
|
||||
# channel_id=original_message.channel.id,
|
||||
# sender_name=original_message.author.name,
|
||||
# sender_disc=original_message.author.discriminator,
|
||||
# sender_id=original_message.author.id,
|
||||
# member_name=member.name,
|
||||
# member_hid=member.hid,
|
||||
# member_avatar_url=member.avatar_url,
|
||||
# system_name=member.system_name,
|
||||
# system_hid=member.system_hid,
|
||||
# message_text=text,
|
||||
# message_image=message_image,
|
||||
# message_timestamp=ciso8601.parse_datetime(
|
||||
# message["timestamp"]),
|
||||
# message_id=message["id"])
|
||||
# elif resp.status == 404 and not has_already_retried:
|
||||
# # Webhook doesn't exist. Delete it from the DB, create, and add a new one
|
||||
# self.logger.warning("Webhook registered in DB doesn't exist, deleting hook from DB, re-adding, and trying again (channel={}, hook={})".format(original_message.channel.id, hook_id))
|
||||
# await db.delete_webhook(conn, original_message.channel.id)
|
||||
# await self.create_and_add_channel_webhook(conn, original_message.channel)
|
||||
#
|
||||
# # Then try again all over, making sure to not retry again and go in a loop should it continually fail
|
||||
# return await self.do_proxy_message(conn, member, original_message, text, attachment_url, has_already_retried=True)
|
||||
# else:
|
||||
# raise discord.HTTPException(resp, await resp.text())
|
||||
#
|
||||
# async def try_proxy_message(self, conn, message: discord.Message):
|
||||
# # Can't proxy in DMs, webhook creation will explode
|
||||
# if message.channel.is_private:
|
||||
# return False
|
||||
#
|
||||
# # Big fat query to find every member associated with this account
|
||||
# # Returned member object has a few more keys (system tag, for example)
|
||||
# members = await db.get_members_by_account(conn, account_id=message.author.id)
|
||||
#
|
||||
# match = match_proxy_tags(members, message.content)
|
||||
# if not match:
|
||||
# return False
|
||||
#
|
||||
# member, text = match
|
||||
# attachment_url = get_message_attachment_url(message)
|
||||
#
|
||||
# # Can't proxy a message with no text AND no attachment
|
||||
# if not text and not attachment_url:
|
||||
# self.logger.debug("Skipping message because of no text and no attachment")
|
||||
# return False
|
||||
#
|
||||
# # Remember to sanitize the text (remove @everyones and such)
|
||||
# text = utils.sanitize(text)
|
||||
#
|
||||
# try:
|
||||
# async with conn.transaction():
|
||||
# await self.do_proxy_message(conn, member, message, text=text, attachment_url=attachment_url)
|
||||
# except WebhookPermissionError:
|
||||
# embed = embeds.error("PluralKit does not have permission to manage webhooks for this channel. Contact your local server administrator to fix this.")
|
||||
# await self.client.send_message(message.channel, embed=embed)
|
||||
# except DeletionPermissionError:
|
||||
# embed = embeds.error("PluralKit does not have permission to delete messages in this channel. Contact your local server administrator to fix this.")
|
||||
# await self.client.send_message(message.channel, embed=embed)
|
||||
#
|
||||
# return True
|
||||
#
|
||||
# async def try_delete_message(self, conn, message_id: str, check_user_id: Optional[str], delete_message: bool, deleted_by_moderator: bool):
|
||||
# async with conn.transaction():
|
||||
# # Find the message in the DB, and make sure it's sent by the user (if we need to check)
|
||||
# if check_user_id:
|
||||
# db_message = await db.get_message_by_sender_and_id(conn, message_id=message_id, sender_id=check_user_id)
|
||||
# else:
|
||||
# db_message = await db.get_message(conn, message_id=message_id)
|
||||
#
|
||||
# if db_message:
|
||||
# self.logger.debug("Deleting message {}".format(message_id))
|
||||
# channel = self.client.get_channel(str(db_message.channel))
|
||||
#
|
||||
# # Fetch the original message from the server
|
||||
# try:
|
||||
# original_message = await self.client.get_message(channel, message_id)
|
||||
# except discord.NotFound:
|
||||
# # Just in case it's already gone
|
||||
# original_message = None
|
||||
#
|
||||
# # If we should also delete the actual message, do that
|
||||
# if delete_message and original_message is not None:
|
||||
# try:
|
||||
# await self.client.delete_message(original_message)
|
||||
# except discord.Forbidden:
|
||||
# self.logger.warning(
|
||||
# "Did not have permission to remove message, aborting deletion (server={}, channel={})".format(
|
||||
# channel.server.id, channel.id))
|
||||
# return
|
||||
#
|
||||
# # Remove it from the DB
|
||||
# await db.delete_message(conn, message_id)
|
||||
#
|
||||
# # Then log deletion to logging channel
|
||||
# await self.channel_logger.log_message_deleted(conn,
|
||||
# server_id=channel.server.id,
|
||||
# channel_name=channel.name,
|
||||
# member_name=db_message.name,
|
||||
# member_hid=db_message.hid,
|
||||
# member_avatar_url=db_message.avatar_url,
|
||||
# system_name=db_message.system_name,
|
||||
# system_hid=db_message.system_hid,
|
||||
# message_text=original_message.content if original_message else "*(original not found)*",
|
||||
# message_id=message_id,
|
||||
# deleted_by_moderator=deleted_by_moderator)
|
||||
#
|
||||
# async def handle_reaction(self, conn, user_id: str, message_id: str, emoji: str):
|
||||
# if emoji == "❌":
|
||||
# await self.try_delete_message(conn, message_id, check_user_id=user_id, delete_message=True, deleted_by_moderator=False)
|
||||
#
|
||||
# async def handle_deletion(self, conn, message_id: str):
|
||||
# # Don't delete the message, it's already gone at this point, just handle DB deletion and logging
|
||||
# await self.try_delete_message(conn, message_id, check_user_id=None, delete_message=False, deleted_by_moderator=True)
|
||||
|
||||
Reference in New Issue
Block a user