[commands] Add PartialMessageConverter

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Josh 2021-01-15 20:26:03 +10:00 committed by GitHub
parent ed2650f786
commit eeafc9363f
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@ -37,6 +37,7 @@ __all__ = (
'MemberConverter',
'UserConverter',
'MessageConverter',
'PartialMessageConverter',
'TextChannelConverter',
'InviteConverter',
'RoleConverter',
@ -251,7 +252,38 @@ class UserConverter(IDConverter):
return result
class MessageConverter(Converter):
class PartialMessageConverter(Converter):
"""Converts to a :class:`discord.PartialMessage`.
.. versionadded:: 1.7
The creation strategy is as follows (in order):
1. By "{channel ID}-{message ID}" (retrieved by shift-clicking on "Copy ID")
2. By message ID (The message is assumed to be in the context channel.)
3. By message URL
"""
def _get_id_matches(self, argument):
id_regex = re.compile(r'(?:(?P<channel_id>[0-9]{15,21})-)?(?P<message_id>[0-9]{15,21})$')
link_regex = re.compile(
r'https?://(?:(ptb|canary|www)\.)?discord(?:app)?\.com/channels/'
r'(?:[0-9]{15,21}|@me)'
r'/(?P<channel_id>[0-9]{15,21})/(?P<message_id>[0-9]{15,21})/?$'
)
match = id_regex.match(argument) or link_regex.match(argument)
if not match:
raise MessageNotFound(argument)
channel_id = match.group("channel_id")
return int(match.group("message_id")), int(channel_id) if channel_id else None
async def convert(self, ctx, argument):
message_id, channel_id = self._get_id_matches(argument)
channel = ctx.bot.get_channel(channel_id) if channel_id else ctx.channel
if not channel:
raise ChannelNotFound(channel_id)
return discord.PartialMessage(channel=channel, id=message_id)
class MessageConverter(PartialMessageConverter):
"""Converts to a :class:`discord.Message`.
.. versionadded:: 1.1
@ -266,21 +298,11 @@ class MessageConverter(Converter):
Raise :exc:`.ChannelNotFound`, :exc:`.MessageNotFound` or :exc:`.ChannelNotReadable` instead of generic :exc:`.BadArgument`
"""
async def convert(self, ctx, argument):
id_regex = re.compile(r'(?:(?P<channel_id>[0-9]{15,21})-)?(?P<message_id>[0-9]{15,21})$')
link_regex = re.compile(
r'https?://(?:(ptb|canary|www)\.)?discord(?:app)?\.com/channels/'
r'(?:[0-9]{15,21}|@me)'
r'/(?P<channel_id>[0-9]{15,21})/(?P<message_id>[0-9]{15,21})/?$'
)
match = id_regex.match(argument) or link_regex.match(argument)
if not match:
raise MessageNotFound(argument)
message_id = int(match.group("message_id"))
channel_id = match.group("channel_id")
message_id, channel_id = self._get_id_matches(argument)
message = ctx.bot._connection._get_message(message_id)
if message:
return message
channel = ctx.bot.get_channel(int(channel_id)) if channel_id else ctx.channel
channel = ctx.bot.get_channel(channel_id) if channel_id else ctx.channel
if not channel:
raise ChannelNotFound(channel_id)
try: