[Mod] Added [p]cleanup bot, [p]cleanup self (#466)

`[p]cleanup bot` deletes user's command messages and bot's messages
`[p]cleanup self` deletes bot's messages

cogs/mod.py

@@ -6,6 +6,7 @@ from __main__ import send_cmd_help, settings
 from collections import deque, defaultdict
 from cogs.utils.chat_formatting import escape_mass_mentions, box
 import os
+import re
 import logging
 import asyncio
 
@@ -398,14 +399,10 @@ class Mod:
         dataIO.save_json("data/mod/perms_cache.json", self._perms_cache)
         await self.bot.say("User has been unmuted in this server.")
 
-    @commands.group(pass_context=True, no_pm=True)
+    @commands.group(pass_context=True)
     @checks.mod_or_permissions(manage_messages=True)
     async def cleanup(self, ctx):
-        """Deletes messages.
-
-        cleanup messages [number]
-        cleanup user [name/mention] [number]
-        cleanup text \"Text here\" [number]"""
+        """Deletes messages."""
         if ctx.invoked_subcommand is None:
             await send_cmd_help(ctx)
 
@@ -492,7 +489,7 @@ class Mod:
         while tries_left and len(to_delete) - 1 < number:
             async for message in self.bot.logs_from(channel, limit=100,
                                                     before=tmp):
-                if len(to_delete) -1 < number and check(message):
+                if len(to_delete) - 1 < number and check(message):
                     to_delete.append(message)
                 tmp = message
             tries_left -= 1
@@ -514,6 +511,8 @@ class Mod:
         To get a message id, enable developer mode in Discord's
         settings, 'appearance' tab. Then right click a message
         and copy its id.
+
+        This command only works on bots running as bot accounts.
         """
 
         channel = ctx.message.channel
@@ -522,6 +521,11 @@ class Mod:
         is_bot = self.bot.user.bot
         has_permissions = channel.permissions_for(server.me).manage_messages
 
+        if not is_bot:
+            await self.bot.say("This command can only be used on bots with "
+                               "bot accounts.")
+            return
+
         to_delete = []
 
         after = await self.bot.get_message(channel, message_id)
@@ -541,10 +545,7 @@ class Mod:
                     "".format(author.name, author.id,
                               len(to_delete), channel.name))
 
-        if is_bot:
-            await self.mass_purge(to_delete)
-        else:
-            await self.slow_deletion(to_delete)
+        await self.mass_purge(to_delete)
 
     @cleanup.command(pass_context=True, no_pm=True)
     async def messages(self, ctx, number: int):
@@ -577,6 +578,139 @@ class Mod:
         else:
             await self.slow_deletion(to_delete)
 
+    @cleanup.command(pass_context=True, no_pm=True, name='bot')
+    async def cleanup_bot(self, ctx, number: int):
+        """Cleans up command messages and messages from the bot"""
+
+        channel = ctx.message.channel
+        author = ctx.message.author
+        server = channel.server
+        is_bot = self.bot.user.bot
+        has_permissions = channel.permissions_for(server.me).manage_messages
+
+        prefixes = self.bot.command_prefix
+        if isinstance(prefixes, str):
+            prefixes = [prefixes]
+        elif callable(prefixes):
+            if asyncio.iscoroutine(prefixes):
+                await self.bot.say('Coroutine prefixes not yet implemented.')
+                return
+            prefixes = prefixes(self.bot, ctx.message)
+
+        # In case some idiot sets a null prefix
+        if '' in prefixes:
+            prefixes.pop('')
+
+        def check(m):
+            if m.author.id == self.bot.user.id:
+                return True
+            elif m == ctx.message:
+                return True
+            p = discord.utils.find(m.content.startswith, prefixes)
+            if p and len(p) > 0:
+                return m.content[len(p):].startswith(tuple(self.bot.commands))
+            return False
+
+        to_delete = [ctx.message]
+
+        if not has_permissions:
+            await self.bot.say("I'm not allowed to delete messages.")
+            return
+
+        tries_left = 5
+        tmp = ctx.message
+
+        while tries_left and len(to_delete) - 1 < number:
+            async for message in self.bot.logs_from(channel, limit=100,
+                                                    before=tmp):
+                if len(to_delete) - 1 < number and check(message):
+                    to_delete.append(message)
+                tmp = message
+            tries_left -= 1
+
+        logger.info("{}({}) deleted {} "
+                    " command messages in channel {}"
+                    "".format(author.name, author.id, len(to_delete),
+                              channel.name))
+
+        if is_bot:
+            await self.mass_purge(to_delete)
+        else:
+            await self.slow_deletion(to_delete)
+
+    @cleanup.command(pass_context=True, name='self')
+    async def cleanup_self(self, ctx, number: int, match_pattern: str = None):
+        """Cleans up messages owned by the bot.
+
+        By default, all messages are cleaned. If a third argument is specified,
+        it is used for pattern matching: If it begins with r( and ends with ),
+        then it is interpreted as a regex, and messages that match it are
+        deleted. Otherwise, it is used in a simple substring test.
+
+        Some helpful regex flags to include in your pattern:
+        Dots match newlines: (?s); Ignore case: (?i); Both: (?si)
+        """
+        channel = ctx.message.channel
+        author = ctx.message.author
+        is_bot = self.bot.user.bot
+
+        # You can always delete your own messages, this is needed to purge
+        can_mass_purge = False
+        if type(author) is discord.Member:
+            me = channel.server.me
+            can_mass_purge = channel.permissions_for(me).manage_messages
+
+        use_re = (match_pattern and match_pattern.startswith('r(') and
+                  match_pattern.endswith(')'))
+
+        if use_re:
+            match_pattern = match_pattern[1:]  # strip 'r'
+            match_re = re.compile(match_pattern)
+
+            def content_match(c):
+                return bool(match_re.match(c))
+        elif match_pattern:
+            def content_match(c):
+                return match_pattern in c
+        else:
+            def content_match(_):
+                return True
+
+        def check(m):
+            if m.author.id != self.bot.user.id:
+                return False
+            elif content_match(m.content):
+                return True
+            return False
+
+        to_delete = []
+
+        tries_left = 5
+        tmp = ctx.message
+
+        while tries_left and len(to_delete) < number:
+            async for message in self.bot.logs_from(channel, limit=100,
+                                                    before=tmp):
+                if len(to_delete) < number and check(message):
+                    to_delete.append(message)
+                tmp = message
+            tries_left -= 1
+
+        if channel.name:
+            channel_name = 'channel ' + channel.name
+        else:
+            channel_name = str(channel)
+
+        logger.info("{}({}) deleted {} messages "
+                    "sent by the bot in {}"
+                    "".format(author.name, author.id, len(to_delete),
+                              channel_name))
+
+        if is_bot and can_mass_purge:
+            await self.mass_purge(to_delete)
+        else:
+            await self.slow_deletion(to_delete)
+
     @commands.command(pass_context=True)
     @checks.mod_or_permissions(manage_messages=True)
     async def reason(self, ctx, case, *, reason : str=""):
@@ -613,7 +747,6 @@ class Mod:
         else:
             await self.bot.say("Case #{} updated.".format(case))
 
-
     @commands.group(pass_context=True)
     @checks.is_owner()
     async def blacklist(self, ctx):
@@ -938,7 +1071,6 @@ class Mod:
                 await self.bot.delete_message(message)
             except:
                 pass
-            await asyncio.sleep(1.5)
 
     def is_mod_or_superior(self, message):
         user = message.author
@@ -1057,7 +1189,7 @@ class Mod:
             self.cache[author].append(message)
             msgs = self.cache[author]
             if len(msgs) == 3 and \
-            msgs[0].content == msgs[1].content == msgs[2].content:
+                    msgs[0].content == msgs[1].content == msgs[2].content:
                 if any([m.attachments for m in msgs]):
                     return False
                 try:
@@ -1146,6 +1278,7 @@ class Mod:
         empty = [p for p in iter(discord.PermissionOverwrite())]
         return original == empty
 
+
 def check_folders():
     folders = ("data", "data/mod/")
     for folder in folders:
@@ -1174,6 +1307,7 @@ def check_files():
             print("Creating empty {}".format(filename))
             dataIO.save_json("data/mod/{}".format(filename), value)
 
+
 def setup(bot):
     global logger
     check_folders()