Fix conflict for webhook token check in code block detection

26 files changed, 203 insertions, 604 deletions

diff --git a/bot/__init__.py b/bot/__init__.py
index d63086fe2..3ee70c4e9 100644
--- a/bot/__init__.py
+++ b/bot/__init__.py
@@ -2,10 +2,14 @@ import asyncio
 import logging
 import os
 import sys
+from functools import partial, partialmethod
 from logging import Logger, handlers
 from pathlib import Path
 
 import coloredlogs
+from discord.ext import commands
+
+from bot.command import Command
 
 TRACE_LEVEL = logging.TRACE = 5
 logging.addLevelName(TRACE_LEVEL, "TRACE")
@@ -66,3 +70,9 @@ logging.getLogger(__name__)
 # On Windows, the selector event loop is required for aiodns.
 if os.name == "nt":
     asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
+
+
+# Monkey-patch discord.py decorators to use the Command subclass which supports root aliases.
+# Must be patched before any cogs are added.
+commands.command = partial(commands.command, cls=Command)
+commands.GroupMixin.command = partialmethod(commands.GroupMixin.command, cls=Command)
diff --git a/bot/__main__.py b/bot/__main__.py
index aafaab425..7ef441873 100644
--- a/bot/__main__.py
+++ b/bot/__main__.py
@@ -75,7 +75,6 @@ bot.load_extension("bot.cogs.token_remover")
 bot.load_extension("bot.cogs.utils")
 bot.load_extension("bot.cogs.watchchannels")
 bot.load_extension("bot.cogs.webhook_remover")
-bot.load_extension("bot.cogs.wolfram")
 
 if constants.HelpChannels.enable:
     bot.load_extension("bot.cogs.help_channels")
diff --git a/bot/bot.py b/bot/bot.py
index 756449293..d25074fd9 100644
--- a/bot/bot.py
+++ b/bot/bot.py
@@ -130,6 +130,26 @@ class Bot(commands.Bot):
         super().add_cog(cog)
         log.info(f"Cog loaded: {cog.qualified_name}")
 
+    def add_command(self, command: commands.Command) -> None:
+        """Add `command` as normal and then add its root aliases to the bot."""
+        super().add_command(command)
+        self._add_root_aliases(command)
+
+    def remove_command(self, name: str) -> Optional[commands.Command]:
+        """
+        Remove a command/alias as normal and then remove its root aliases from the bot.
+
+        Individual root aliases cannot be removed by this function.
+        To remove them, either remove the entire command or manually edit `bot.all_commands`.
+        """
+        command = super().remove_command(name)
+        if command is None:
+            # Even if it's a root alias, there's no way to get the Bot instance to remove the alias.
+            return
+
+        self._remove_root_aliases(command)
+        return command
+
     def clear(self) -> None:
         """
         Clears the internal state of the bot and recreates the connector and sessions.
@@ -235,3 +255,24 @@ class Bot(commands.Bot):
             scope.set_extra("kwargs", kwargs)
 
             log.exception(f"Unhandled exception in {event}.")
+
+    def _add_root_aliases(self, command: commands.Command) -> None:
+        """Recursively add root aliases for `command` and any of its subcommands."""
+        if isinstance(command, commands.Group):
+            for subcommand in command.commands:
+                self._add_root_aliases(subcommand)
+
+        for alias in getattr(command, "root_aliases", ()):
+            if alias in self.all_commands:
+                raise commands.CommandRegistrationError(alias, alias_conflict=True)
+
+            self.all_commands[alias] = command
+
+    def _remove_root_aliases(self, command: commands.Command) -> None:
+        """Recursively remove root aliases for `command` and any of its subcommands."""
+        if isinstance(command, commands.Group):
+            for subcommand in command.commands:
+                self._remove_root_aliases(subcommand)
+
+        for alias in getattr(command, "root_aliases", ()):
+            self.all_commands.pop(alias, None)
diff --git a/bot/cogs/alias.py b/bot/cogs/alias.py
index 55c7efe65..c6ba8d6f3 100644
--- a/bot/cogs/alias.py
+++ b/bot/cogs/alias.py
@@ -3,13 +3,12 @@ import logging
 
 from discord import Colour, Embed
 from discord.ext.commands import (
-    Cog, Command, Context, Greedy,
+    Cog, Command, Context,
     clean_content, command, group,
 )
 
 from bot.bot import Bot
-from bot.cogs.extensions import Extension
-from bot.converters import FetchedMember, TagNameConverter
+from bot.converters import TagNameConverter
 from bot.pagination import LinePaginator
 
 log = logging.getLogger(__name__)
@@ -51,56 +50,6 @@ class Alias (Cog):
             ctx, embed, empty=False, max_lines=20
         )
 
-    @command(name="resources", aliases=("resource",), hidden=True)
-    async def site_resources_alias(self, ctx: Context) -> None:
-        """Alias for invoking <prefix>site resources."""
-        await self.invoke(ctx, "site resources")
-
-    @command(name="tools", hidden=True)
-    async def site_tools_alias(self, ctx: Context) -> None:
-        """Alias for invoking <prefix>site tools."""
-        await self.invoke(ctx, "site tools")
-
-    @command(name="watch", hidden=True)
-    async def bigbrother_watch_alias(self, ctx: Context, user: FetchedMember, *, reason: str) -> None:
-        """Alias for invoking <prefix>bigbrother watch [user] [reason]."""
-        await self.invoke(ctx, "bigbrother watch", user, reason=reason)
-
-    @command(name="unwatch", hidden=True)
-    async def bigbrother_unwatch_alias(self, ctx: Context, user: FetchedMember, *, reason: str) -> None:
-        """Alias for invoking <prefix>bigbrother unwatch [user] [reason]."""
-        await self.invoke(ctx, "bigbrother unwatch", user, reason=reason)
-
-    @command(name="home", hidden=True)
-    async def site_home_alias(self, ctx: Context) -> None:
-        """Alias for invoking <prefix>site home."""
-        await self.invoke(ctx, "site home")
-
-    @command(name="faq", hidden=True)
-    async def site_faq_alias(self, ctx: Context) -> None:
-        """Alias for invoking <prefix>site faq."""
-        await self.invoke(ctx, "site faq")
-
-    @command(name="rules", aliases=("rule",), hidden=True)
-    async def site_rules_alias(self, ctx: Context, rules: Greedy[int], *_: str) -> None:
-        """Alias for invoking <prefix>site rules."""
-        await self.invoke(ctx, "site rules", *rules)
-
-    @command(name="reload", hidden=True)
-    async def extensions_reload_alias(self, ctx: Context, *extensions: Extension) -> None:
-        """Alias for invoking <prefix>extensions reload [extensions...]."""
-        await self.invoke(ctx, "extensions reload", *extensions)
-
-    @command(name="defon", hidden=True)
-    async def defcon_enable_alias(self, ctx: Context) -> None:
-        """Alias for invoking <prefix>defcon enable."""
-        await self.invoke(ctx, "defcon enable")
-
-    @command(name="defoff", hidden=True)
-    async def defcon_disable_alias(self, ctx: Context) -> None:
-        """Alias for invoking <prefix>defcon disable."""
-        await self.invoke(ctx, "defcon disable")
-
     @command(name="exception", hidden=True)
     async def tags_get_traceback_alias(self, ctx: Context) -> None:
         """Alias for invoking <prefix>tags get traceback."""
@@ -132,21 +81,6 @@ class Alias (Cog):
         """Alias for invoking <prefix>docs get [symbol]."""
         await self.invoke(ctx, "docs get", symbol)
 
-    @command(name="nominate", hidden=True)
-    async def nomination_add_alias(self, ctx: Context, user: FetchedMember, *, reason: str) -> None:
-        """Alias for invoking <prefix>talentpool add [user] [reason]."""
-        await self.invoke(ctx, "talentpool add", user, reason=reason)
-
-    @command(name="unnominate", hidden=True)
-    async def nomination_end_alias(self, ctx: Context, user: FetchedMember, *, reason: str) -> None:
-        """Alias for invoking <prefix>nomination end [user] [reason]."""
-        await self.invoke(ctx, "nomination end", user, reason=reason)
-
-    @command(name="nominees", hidden=True)
-    async def nominees_alias(self, ctx: Context) -> None:
-        """Alias for invoking <prefix>tp watched."""
-        await self.invoke(ctx, "talentpool watched")
-
 
 def setup(bot: Bot) -> None:
     """Load the Alias cog."""
diff --git a/bot/cogs/antimalware.py b/bot/cogs/antimalware.py
index c76bd2c60..7894ec48f 100644
--- a/bot/cogs/antimalware.py
+++ b/bot/cogs/antimalware.py
@@ -55,6 +55,10 @@ class AntiMalware(Cog):
         if not message.attachments or not message.guild:
             return
 
+        # Ignore webhook and bot messages
+        if message.webhook_id or message.author.bot:
+            return
+
         # Check if user is staff, if is, return
         # Since we only care that roles exist to iterate over, check for the attr rather than a User/Member instance
         if hasattr(message.author, "roles") and any(role.id in STAFF_ROLES for role in message.author.roles):
diff --git a/bot/cogs/antispam.py b/bot/cogs/antispam.py
index bc31cbd95..3ad487d8c 100644
--- a/bot/cogs/antispam.py
+++ b/bot/cogs/antispam.py
@@ -27,14 +27,18 @@ log = logging.getLogger(__name__)
 RULE_FUNCTION_MAPPING = {
     'attachments': rules.apply_attachments,
     'burst': rules.apply_burst,
-    'burst_shared': rules.apply_burst_shared,
+    # burst shared is temporarily disabled due to a bug
+    # 'burst_shared': rules.apply_burst_shared,
     'chars': rules.apply_chars,
     'discord_emojis': rules.apply_discord_emojis,
     'duplicates': rules.apply_duplicates,
     'links': rules.apply_links,
     'mentions': rules.apply_mentions,
     'newlines': rules.apply_newlines,
-    'role_mentions': rules.apply_role_mentions
+    'role_mentions': rules.apply_role_mentions,
+    # the everyone filter is temporarily disabled until
+    # it has been improved.
+    # 'everyone_ping': rules.apply_everyone_ping,
 }
 
 
diff --git a/bot/cogs/codeblock/cog.py b/bot/cogs/codeblock/cog.py
index c29dcaa4f..5ebc596fb 100644
--- a/bot/cogs/codeblock/cog.py
+++ b/bot/cogs/codeblock/cog.py
@@ -9,6 +9,7 @@ from discord.ext.commands import Cog
 from bot import constants
 from bot.bot import Bot
 from bot.cogs.token_remover import TokenRemover
+from bot.cogs.webhook_remover import WEBHOOK_URL_RE
 from bot.utils import has_lines
 from bot.utils.channel import is_help_channel
 from bot.utils.messages import wait_for_deletion
@@ -127,13 +128,14 @@ class CodeBlockCog(Cog, name="Code Block"):
         1. Is not authored by a bot
         2. Is in a valid channel
         3. Has more than 3 lines
-        4. Has no bot token
+        4. Has no bot or webhook token
         """
         return (
             not message.author.bot
             and self.is_valid_channel(message.channel)
             and has_lines(message.content, constants.CodeBlock.minimum_lines)
             and not TokenRemover.find_token_in_message(message)
+            and not WEBHOOK_URL_RE.search(message.content)
         )
 
     @Cog.listener()
diff --git a/bot/cogs/defcon.py b/bot/cogs/defcon.py
index 4c0ad5914..9087ac454 100644
--- a/bot/cogs/defcon.py
+++ b/bot/cogs/defcon.py
@@ -10,7 +10,7 @@ from discord.ext.commands import Cog, Context, group
 
 from bot.bot import Bot
 from bot.cogs.moderation import ModLog
-from bot.constants import Channels, Colours, Emojis, Event, Icons, Roles
+from bot.constants import Channels, Colours, Emojis, Event, Icons, MODERATION_ROLES, Roles
 from bot.decorators import with_role
 
 log = logging.getLogger(__name__)
@@ -119,7 +119,7 @@ class Defcon(Cog):
                 )
 
     @group(name='defcon', aliases=('dc',), invoke_without_command=True)
-    @with_role(Roles.admins, Roles.owners)
+    @with_role(*MODERATION_ROLES)
     async def defcon_group(self, ctx: Context) -> None:
         """Check the DEFCON status or run a subcommand."""
         await ctx.send_help(ctx.command)
@@ -162,8 +162,8 @@ class Defcon(Cog):
 
             self.bot.stats.gauge("defcon.threshold", days)
 
-    @defcon_group.command(name='enable', aliases=('on', 'e'))
-    @with_role(Roles.admins, Roles.owners)
+    @defcon_group.command(name='enable', aliases=('on', 'e'), root_aliases=("defon",))
+    @with_role(*MODERATION_ROLES)
     async def enable_command(self, ctx: Context) -> None:
         """
         Enable DEFCON mode. Useful in a pinch, but be sure you know what you're doing!
@@ -175,8 +175,8 @@ class Defcon(Cog):
         await self._defcon_action(ctx, days=0, action=Action.ENABLED)
         await self.update_channel_topic()
 
-    @defcon_group.command(name='disable', aliases=('off', 'd'))
-    @with_role(Roles.admins, Roles.owners)
+    @defcon_group.command(name='disable', aliases=('off', 'd'), root_aliases=("defoff",))
+    @with_role(*MODERATION_ROLES)
     async def disable_command(self, ctx: Context) -> None:
         """Disable DEFCON mode. Useful in a pinch, but be sure you know what you're doing!"""
         self.enabled = False
@@ -184,7 +184,7 @@ class Defcon(Cog):
         await self.update_channel_topic()
 
     @defcon_group.command(name='status', aliases=('s',))
-    @with_role(Roles.admins, Roles.owners)
+    @with_role(*MODERATION_ROLES)
     async def status_command(self, ctx: Context) -> None:
         """Check the current status of DEFCON mode."""
         embed = Embed(
@@ -196,7 +196,7 @@ class Defcon(Cog):
         await ctx.send(embed=embed)
 
     @defcon_group.command(name='days')
-    @with_role(Roles.admins, Roles.owners)
+    @with_role(*MODERATION_ROLES)
     async def days_command(self, ctx: Context, days: int) -> None:
         """Set how old an account must be to join the server, in days, with DEFCON mode enabled."""
         self.days = timedelta(days=days)
diff --git a/bot/cogs/extensions.py b/bot/cogs/extensions.py
index 365f198ff..396e406b0 100644
--- a/bot/cogs/extensions.py
+++ b/bot/cogs/extensions.py
@@ -107,7 +107,7 @@ class Extensions(commands.Cog):
 
         await ctx.send(msg)
 
-    @extensions_group.command(name="reload", aliases=("r",))
+    @extensions_group.command(name="reload", aliases=("r",), root_aliases=("reload",))
     async def reload_command(self, ctx: Context, *extensions: Extension) -> None:
         r"""
         Reload extensions given their fully qualified or unqualified names.
diff --git a/bot/cogs/help.py b/bot/cogs/help.py
index 3d1d6fd10..99d503f5c 100644
--- a/bot/cogs/help.py
+++ b/bot/cogs/help.py
@@ -1,50 +1,28 @@
 import itertools
 import logging
-from asyncio import TimeoutError
 from collections import namedtuple
 from contextlib import suppress
 from typing import List, Union
 
-from discord import Colour, Embed, Member, Message, NotFound, Reaction, User
+from discord import Colour, Embed
 from discord.ext.commands import Bot, Cog, Command, Context, Group, HelpCommand
 from fuzzywuzzy import fuzz, process
 from fuzzywuzzy.utils import full_process
 
 from bot import constants
-from bot.constants import Channels, Emojis, STAFF_ROLES
+from bot.constants import Channels, STAFF_ROLES
 from bot.decorators import redirect_output
 from bot.pagination import LinePaginator
+from bot.utils.messages import wait_for_deletion
 
 log = logging.getLogger(__name__)
 
 COMMANDS_PER_PAGE = 8
-DELETE_EMOJI = Emojis.trashcan
 PREFIX = constants.Bot.prefix
 
 Category = namedtuple("Category", ["name", "description", "cogs"])
 
 
-async def help_cleanup(bot: Bot, author: Member, message: Message) -> None:
-    """
-    Runs the cleanup for the help command.
-
-    Adds the :trashcan: reaction that, when clicked, will delete the help message.
-    After a 300 second timeout, the reaction will be removed.
-    """
-    def check(reaction: Reaction, user: User) -> bool:
-        """Checks the reaction is :trashcan:, the author is original author and messages are the same."""
-        return str(reaction) == DELETE_EMOJI and user.id == author.id and reaction.message.id == message.id
-
-    await message.add_reaction(DELETE_EMOJI)
-
-    with suppress(NotFound):
-        try:
-            await bot.wait_for("reaction_add", check=check, timeout=300)
-            await message.delete()
-        except TimeoutError:
-            await message.remove_reaction(DELETE_EMOJI, bot.user)
-
-
 class HelpQueryNotFound(ValueError):
     """
     Raised when a HelpSession Query doesn't match a command or cog.
@@ -189,7 +167,9 @@ class CustomHelpCommand(HelpCommand):
         command_details = f"**```{PREFIX}{name} {command.signature}```**\n"
 
         # show command aliases
-        aliases = ", ".join(f"`{alias}`" if not parent else f"`{parent} {alias}`" for alias in command.aliases)
+        aliases = [f"`{alias}`" if not parent else f"`{parent} {alias}`" for alias in command.aliases]
+        aliases += [f"`{alias}`" for alias in getattr(command, "root_aliases", ())]
+        aliases = ", ".join(sorted(aliases))
         if aliases:
             command_details += f"**Can also use:** {aliases}\n\n"
 
@@ -206,7 +186,7 @@ class CustomHelpCommand(HelpCommand):
         """Send help for a single command."""
         embed = await self.command_formatting(command)
         message = await self.context.send(embed=embed)
-        await help_cleanup(self.context.bot, self.context.author, message)
+        await wait_for_deletion(message, (self.context.author.id,), self.context.bot)
 
     @staticmethod
     def get_commands_brief_details(commands_: List[Command], return_as_list: bool = False) -> Union[List[str], str]:
@@ -245,7 +225,7 @@ class CustomHelpCommand(HelpCommand):
             embed.description += f"\n**Subcommands:**\n{command_details}"
 
         message = await self.context.send(embed=embed)
-        await help_cleanup(self.context.bot, self.context.author, message)
+        await wait_for_deletion(message, (self.context.author.id,), self.context.bot)
 
     async def send_cog_help(self, cog: Cog) -> None:
         """Send help for a cog."""
@@ -261,7 +241,7 @@ class CustomHelpCommand(HelpCommand):
             embed.description += f"\n\n**Commands:**\n{command_details}"
 
         message = await self.context.send(embed=embed)
-        await help_cleanup(self.context.bot, self.context.author, message)
+        await wait_for_deletion(message, (self.context.author.id,), self.context.bot)
 
     @staticmethod
     def _category_key(command: Command) -> str:
diff --git a/bot/cogs/help_channels.py b/bot/cogs/help_channels.py
index 97044f1f2..eb577eda4 100644
--- a/bot/cogs/help_channels.py
+++ b/bot/cogs/help_channels.py
@@ -36,7 +36,7 @@ the **Help: Dormant** category.
 
 Try to write the best question you can by providing a detailed description and telling us what \
 you've tried already. For more information on asking a good question, \
-check out our guide on [asking good questions]({ASKING_GUIDE_URL}).
+check out our guide on **[asking good questions]({ASKING_GUIDE_URL})**.
 """
 
 DORMANT_MSG = f"""
@@ -47,7 +47,7 @@ channel until it becomes available again.
 If your question wasn't answered yet, you can claim a new help channel from the \
 **Help: Available** category by simply asking your question again. Consider rephrasing the \
 question to maximize your chance of getting a good answer. If you're not sure how, have a look \
-through our guide for [asking a good question]({ASKING_GUIDE_URL}).
+through our guide for **[asking a good question]({ASKING_GUIDE_URL})**.
 """
 
 CoroutineFunc = t.Callable[..., t.Coroutine]
diff --git a/bot/cogs/site.py b/bot/cogs/site.py
index ac29daa1d..2d3a3d9f3 100644
--- a/bot/cogs/site.py
+++ b/bot/cogs/site.py
@@ -23,7 +23,7 @@ class Site(Cog):
         """Commands for getting info about our website."""
         await ctx.send_help(ctx.command)
 
-    @site_group.command(name="home", aliases=("about",))
+    @site_group.command(name="home", aliases=("about",), root_aliases=("home",))
     async def site_main(self, ctx: Context) -> None:
         """Info about the website itself."""
         url = f"{URLs.site_schema}{URLs.site}/"
@@ -40,7 +40,7 @@ class Site(Cog):
 
         await ctx.send(embed=embed)
 
-    @site_group.command(name="resources")
+    @site_group.command(name="resources", root_aliases=("resources", "resource"))
     async def site_resources(self, ctx: Context) -> None:
         """Info about the site's Resources page."""
         learning_url = f"{PAGES_URL}/resources"
@@ -56,7 +56,7 @@ class Site(Cog):
 
         await ctx.send(embed=embed)
 
-    @site_group.command(name="tools")
+    @site_group.command(name="tools", root_aliases=("tools",))
     async def site_tools(self, ctx: Context) -> None:
         """Info about the site's Tools page."""
         tools_url = f"{PAGES_URL}/resources/tools"
@@ -87,7 +87,7 @@ class Site(Cog):
 
         await ctx.send(embed=embed)
 
-    @site_group.command(name="faq")
+    @site_group.command(name="faq", root_aliases=("faq",))
     async def site_faq(self, ctx: Context) -> None:
         """Info about the site's FAQ page."""
         url = f"{PAGES_URL}/frequently-asked-questions"
@@ -104,7 +104,7 @@ class Site(Cog):
 
         await ctx.send(embed=embed)
 
-    @site_group.command(aliases=['r', 'rule'], name='rules')
+    @site_group.command(name="rules", aliases=("r", "rule"), root_aliases=("rules", "rule"))
     async def site_rules(self, ctx: Context, *rules: int) -> None:
         """Provides a link to all rules or, if specified, displays specific rule(s)."""
         rules_embed = Embed(title='Rules', color=Colour.blurple())
diff --git a/bot/cogs/watchchannels/bigbrother.py b/bot/cogs/watchchannels/bigbrother.py
index 7aa9cec58..11ab8917a 100644
--- a/bot/cogs/watchchannels/bigbrother.py
+++ b/bot/cogs/watchchannels/bigbrother.py
@@ -59,7 +59,7 @@ class BigBrother(WatchChannel, Cog, name="Big Brother"):
         """
         await ctx.invoke(self.watched_command, oldest_first=True, update_cache=update_cache)
 
-    @bigbrother_group.command(name='watch', aliases=('w',))
+    @bigbrother_group.command(name='watch', aliases=('w',), root_aliases=('watch',))
     @with_role(*MODERATION_ROLES)
     async def watch_command(self, ctx: Context, user: FetchedMember, *, reason: str) -> None:
         """
@@ -70,7 +70,7 @@ class BigBrother(WatchChannel, Cog, name="Big Brother"):
         """
         await self.apply_watch(ctx, user, reason)
 
-    @bigbrother_group.command(name='unwatch', aliases=('uw',))
+    @bigbrother_group.command(name='unwatch', aliases=('uw',), root_aliases=('unwatch',))
     @with_role(*MODERATION_ROLES)
     async def unwatch_command(self, ctx: Context, user: FetchedMember, *, reason: str) -> None:
         """Stop relaying messages by the given `user`."""
diff --git a/bot/cogs/watchchannels/talentpool.py b/bot/cogs/watchchannels/talentpool.py
index a6df84c23..76d6fe9bd 100644
--- a/bot/cogs/watchchannels/talentpool.py
+++ b/bot/cogs/watchchannels/talentpool.py
@@ -37,7 +37,7 @@ class TalentPool(WatchChannel, Cog, name="Talentpool"):
         """Highlights the activity of helper nominees by relaying their messages to the talent pool channel."""
         await ctx.send_help(ctx.command)
 
-    @nomination_group.command(name='watched', aliases=('all', 'list'))
+    @nomination_group.command(name='watched', aliases=('all', 'list'), root_aliases=("nominees",))
     @with_role(*MODERATION_ROLES)
     async def watched_command(
         self, ctx: Context, oldest_first: bool = False, update_cache: bool = True
@@ -63,7 +63,7 @@ class TalentPool(WatchChannel, Cog, name="Talentpool"):
         """
         await ctx.invoke(self.watched_command, oldest_first=True, update_cache=update_cache)
 
-    @nomination_group.command(name='watch', aliases=('w', 'add', 'a'))
+    @nomination_group.command(name='watch', aliases=('w', 'add', 'a'), root_aliases=("nominate",))
     @with_role(*STAFF_ROLES)
     async def watch_command(self, ctx: Context, user: FetchedMember, *, reason: str) -> None:
         """
@@ -157,7 +157,7 @@ class TalentPool(WatchChannel, Cog, name="Talentpool"):
             max_size=1000
         )
 
-    @nomination_group.command(name='unwatch', aliases=('end', ))
+    @nomination_group.command(name='unwatch', aliases=('end', ), root_aliases=("unnominate",))
     @with_role(*MODERATION_ROLES)
     async def unwatch_command(self, ctx: Context, user: FetchedMember, *, reason: str) -> None:
         """
diff --git a/bot/cogs/watchchannels/watchchannel.py b/bot/cogs/watchchannels/watchchannel.py
index 044077350..a58b604c0 100644
--- a/bot/cogs/watchchannels/watchchannel.py
+++ b/bot/cogs/watchchannels/watchchannel.py
@@ -15,6 +15,8 @@ from discord.ext.commands import Cog, Context
 from bot.api import ResponseCodeError
 from bot.bot import Bot
 from bot.cogs.moderation import ModLog
+from bot.cogs.token_remover import TokenRemover
+from bot.cogs.webhook_remover import WEBHOOK_URL_RE
 from bot.constants import BigBrother as BigBrotherConfig, Guild as GuildConfig, Icons
 from bot.pagination import LinePaginator
 from bot.utils import CogABCMeta, messages
@@ -226,14 +228,16 @@ class WatchChannel(metaclass=CogABCMeta):
 
             await self.send_header(msg)
 
-        cleaned_content = msg.clean_content
-
-        if cleaned_content:
+        if TokenRemover.find_token_in_message(msg) or WEBHOOK_URL_RE.search(msg.content):
+            cleaned_content = "Content is censored because it contains a bot or webhook token."
+        elif cleaned_content := msg.clean_content:
             # Put all non-media URLs in a code block to prevent embeds
             media_urls = {embed.url for embed in msg.embeds if embed.type in ("image", "video")}
             for url in URL_RE.findall(cleaned_content):
                 if url not in media_urls:
                     cleaned_content = cleaned_content.replace(url, f"`{url}`")
+
+        if cleaned_content:
             await self.webhook_send(
                 cleaned_content,
                 username=msg.author.display_name,
diff --git a/bot/cogs/wolfram.py b/bot/cogs/wolfram.py
deleted file mode 100644
index e6cae3bb8..000000000
--- a/bot/cogs/wolfram.py
+++ /dev/null
@@ -1,280 +0,0 @@
-import logging
-from io import BytesIO
-from typing import Callable, List, Optional, Tuple
-from urllib import parse
-
-import discord
-from dateutil.relativedelta import relativedelta
-from discord import Embed
-from discord.ext import commands
-from discord.ext.commands import BucketType, Cog, Context, check, group
-
-from bot.bot import Bot
-from bot.constants import Colours, STAFF_ROLES, Wolfram
-from bot.pagination import ImagePaginator
-from bot.utils.time import humanize_delta
-
-log = logging.getLogger(__name__)
-
-APPID = Wolfram.key
-DEFAULT_OUTPUT_FORMAT = "JSON"
-QUERY = "http://api.wolframalpha.com/v2/{request}?{data}"
-WOLF_IMAGE = "https://www.symbols.com/gi.php?type=1&id=2886&i=1"
-
-MAX_PODS = 20
-
-# Allows for 10 wolfram calls pr user pr day
-usercd = commands.CooldownMapping.from_cooldown(Wolfram.user_limit_day, 60*60*24, BucketType.user)
-
-# Allows for max api requests / days in month per day for the entire guild (Temporary)
-guildcd = commands.CooldownMapping.from_cooldown(Wolfram.guild_limit_day, 60*60*24, BucketType.guild)
-
-
-async def send_embed(
-        ctx: Context,
-        message_txt: str,
-        colour: int = Colours.soft_red,
-        footer: str = None,
-        img_url: str = None,
-        f: discord.File = None
-) -> None:
-    """Generate & send a response embed with Wolfram as the author."""
-    embed = Embed(colour=colour)
-    embed.description = message_txt
-    embed.set_author(name="Wolfram Alpha",
-                     icon_url=WOLF_IMAGE,
-                     url="https://www.wolframalpha.com/")
-    if footer:
-        embed.set_footer(text=footer)
-
-    if img_url:
-        embed.set_image(url=img_url)
-
-    await ctx.send(embed=embed, file=f)
-
-
-def custom_cooldown(*ignore: List[int]) -> Callable:
-    """
-    Implement per-user and per-guild cooldowns for requests to the Wolfram API.
-
-    A list of roles may be provided to ignore the per-user cooldown
-    """
-    async def predicate(ctx: Context) -> bool:
-        if ctx.invoked_with == 'help':
-            # if the invoked command is help we don't want to increase the ratelimits since it's not actually
-            # invoking the command/making a request, so instead just check if the user/guild are on cooldown.
-            guild_cooldown = not guildcd.get_bucket(ctx.message).get_tokens() == 0  # if guild is on cooldown
-            if not any(r.id in ignore for r in ctx.author.roles):  # check user bucket if user is not ignored
-                return guild_cooldown and not usercd.get_bucket(ctx.message).get_tokens() == 0
-            return guild_cooldown
-
-        user_bucket = usercd.get_bucket(ctx.message)
-
-        if all(role.id not in ignore for role in ctx.author.roles):
-            user_rate = user_bucket.update_rate_limit()
-
-            if user_rate:
-                # Can't use api; cause: member limit
-                delta = relativedelta(seconds=int(user_rate))
-                cooldown = humanize_delta(delta)
-                message = (
-                    "You've used up your limit for Wolfram|Alpha requests.\n"
-                    f"Cooldown: {cooldown}"
-                )
-                await send_embed(ctx, message)
-                return False
-
-        guild_bucket = guildcd.get_bucket(ctx.message)
-        guild_rate = guild_bucket.update_rate_limit()
-
-        # Repr has a token attribute to read requests left
-        log.debug(guild_bucket)
-
-        if guild_rate:
-            # Can't use api; cause: guild limit
-            message = (
-                "The max limit of requests for the server has been reached for today.\n"
-                f"Cooldown: {int(guild_rate)}"
-            )
-            await send_embed(ctx, message)
-            return False
-
-        return True
-    return check(predicate)
-
-
-async def get_pod_pages(ctx: Context, bot: Bot, query: str) -> Optional[List[Tuple]]:
-    """Get the Wolfram API pod pages for the provided query."""
-    async with ctx.channel.typing():
-        url_str = parse.urlencode({
-            "input": query,
-            "appid": APPID,
-            "output": DEFAULT_OUTPUT_FORMAT,
-            "format": "image,plaintext"
-        })
-        request_url = QUERY.format(request="query", data=url_str)
-
-        async with bot.http_session.get(request_url) as response:
-            json = await response.json(content_type='text/plain')
-
-        result = json["queryresult"]
-
-        if result["error"]:
-            # API key not set up correctly
-            if result["error"]["msg"] == "Invalid appid":
-                message = "Wolfram API key is invalid or missing."
-                log.warning(
-                    "API key seems to be missing, or invalid when "
-                    f"processing a wolfram request: {url_str}, Response: {json}"
-                )
-                await send_embed(ctx, message)
-                return
-
-            message = "Something went wrong internally with your request, please notify staff!"
-            log.warning(f"Something went wrong getting a response from wolfram: {url_str}, Response: {json}")
-            await send_embed(ctx, message)
-            return
-
-        if not result["success"]:
-            message = f"I couldn't find anything for {query}."
-            await send_embed(ctx, message)
-            return
-
-        if not result["numpods"]:
-            message = "Could not find any results."
-            await send_embed(ctx, message)
-            return
-
-        pods = result["pods"]
-        pages = []
-        for pod in pods[:MAX_PODS]:
-            subs = pod.get("subpods")
-
-            for sub in subs:
-                title = sub.get("title") or sub.get("plaintext") or sub.get("id", "")
-                img = sub["img"]["src"]
-                pages.append((title, img))
-        return pages
-
-
-class Wolfram(Cog):
-    """Commands for interacting with the Wolfram|Alpha API."""
-
-    def __init__(self, bot: Bot):
-        self.bot = bot
-
-    @group(name="wolfram", aliases=("wolf", "wa"), invoke_without_command=True)
-    @custom_cooldown(*STAFF_ROLES)
-    async def wolfram_command(self, ctx: Context, *, query: str) -> None:
-        """Requests all answers on a single image, sends an image of all related pods."""
-        url_str = parse.urlencode({
-            "i": query,
-            "appid": APPID,
-        })
-        query = QUERY.format(request="simple", data=url_str)
-
-        # Give feedback that the bot is working.
-        async with ctx.channel.typing():
-            async with self.bot.http_session.get(query) as response:
-                status = response.status
-                image_bytes = await response.read()
-
-            f = discord.File(BytesIO(image_bytes), filename="image.png")
-            image_url = "attachment://image.png"
-
-            if status == 501:
-                message = "Failed to get response"
-                footer = ""
-                color = Colours.soft_red
-            elif status == 400:
-                message = "No input found"
-                footer = ""
-                color = Colours.soft_red
-            elif status == 403:
-                message = "Wolfram API key is invalid or missing."
-                footer = ""
-                color = Colours.soft_red
-            else:
-                message = ""
-                footer = "View original for a bigger picture."
-                color = Colours.soft_orange
-
-            # Sends a "blank" embed if no request is received, unsure how to fix
-            await send_embed(ctx, message, color, footer=footer, img_url=image_url, f=f)
-
-    @wolfram_command.command(name="page", aliases=("pa", "p"))
-    @custom_cooldown(*STAFF_ROLES)
-    async def wolfram_page_command(self, ctx: Context, *, query: str) -> None:
-        """
-        Requests a drawn image of given query.
-
-        Keywords worth noting are, "like curve", "curve", "graph", "pokemon", etc.
-        """
-        pages = await get_pod_pages(ctx, self.bot, query)
-
-        if not pages:
-            return
-
-        embed = Embed()
-        embed.set_author(name="Wolfram Alpha",
-                         icon_url=WOLF_IMAGE,
-                         url="https://www.wolframalpha.com/")
-        embed.colour = Colours.soft_orange
-
-        await ImagePaginator.paginate(pages, ctx, embed)
-
-    @wolfram_command.command(name="cut", aliases=("c",))
-    @custom_cooldown(*STAFF_ROLES)
-    async def wolfram_cut_command(self, ctx: Context, *, query: str) -> None:
-        """
-        Requests a drawn image of given query.
-
-        Keywords worth noting are, "like curve", "curve", "graph", "pokemon", etc.
-        """
-        pages = await get_pod_pages(ctx, self.bot, query)
-
-        if not pages:
-            return
-
-        if len(pages) >= 2:
-            page = pages[1]
-        else:
-            page = pages[0]
-
-        await send_embed(ctx, page[0], colour=Colours.soft_orange, img_url=page[1])
-
-    @wolfram_command.command(name="short", aliases=("sh", "s"))
-    @custom_cooldown(*STAFF_ROLES)
-    async def wolfram_short_command(self, ctx: Context, *, query: str) -> None:
-        """Requests an answer to a simple question."""
-        url_str = parse.urlencode({
-            "i": query,
-            "appid": APPID,
-        })
-        query = QUERY.format(request="result", data=url_str)
-
-        # Give feedback that the bot is working.
-        async with ctx.channel.typing():
-            async with self.bot.http_session.get(query) as response:
-                status = response.status
-                response_text = await response.text()
-
-            if status == 501:
-                message = "Failed to get response"
-                color = Colours.soft_red
-            elif status == 400:
-                message = "No input found"
-                color = Colours.soft_red
-            elif response_text == "Error 1: Invalid appid":
-                message = "Wolfram API key is invalid or missing."
-                color = Colours.soft_red
-            else:
-                message = response_text
-                color = Colours.soft_orange
-
-            await send_embed(ctx, message, color)
-
-
-def setup(bot: Bot) -> None:
-    """Load the Wolfram cog."""
-    bot.add_cog(Wolfram(bot))
diff --git a/bot/command.py b/bot/command.py
new file mode 100644
index 000000000..0fb900f7b
--- /dev/null
+++ b/bot/command.py
@@ -0,0 +1,18 @@
+from discord.ext import commands
+
+
+class Command(commands.Command):
+    """
+    A `discord.ext.commands.Command` subclass which supports root aliases.
+
+    A `root_aliases` keyword argument is added, which is a sequence of alias names that will act as
+    top-level commands rather than being aliases of the command's group. It's stored as an attribute
+    also named `root_aliases`.
+    """
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.root_aliases = kwargs.get("root_aliases", [])
+
+        if not isinstance(self.root_aliases, (list, tuple)):
+            raise TypeError("Root aliases of a command must be a list or a tuple of strings.")
diff --git a/bot/constants.py b/bot/constants.py
index a28588427..43f3e10bc 100644
--- a/bot/constants.py
+++ b/bot/constants.py
@@ -514,14 +514,6 @@ class Reddit(metaclass=YAMLGetter):
     secret: Optional[str]
 
 
-class Wolfram(metaclass=YAMLGetter):
-    section = "wolfram"
-
-    user_limit_day: int
-    guild_limit_day: int
-    key: Optional[str]
-
-
 class AntiSpam(metaclass=YAMLGetter):
     section = 'anti_spam'
 
diff --git a/bot/pagination.py b/bot/pagination.py
index bab98cacf..182b2fa76 100644
--- a/bot/pagination.py
+++ b/bot/pagination.py
@@ -374,167 +374,3 @@ class LinePaginator(Paginator):
         log.debug("Ending pagination and clearing reactions.")
         with suppress(discord.NotFound):
             await message.clear_reactions()
-
-
-class ImagePaginator(Paginator):
-    """
-    Helper class that paginates images for embeds in messages.
-
-    Close resemblance to LinePaginator, except focuses on images over text.
-
-    Refer to ImagePaginator.paginate for documentation on how to use.
-    """
-
-    def __init__(self, prefix: str = "", suffix: str = ""):
-        super().__init__(prefix, suffix)
-        self._current_page = [prefix]
-        self.images = []
-        self._pages = []
-        self._count = 0
-
-    def add_line(self, line: str = '', *, empty: bool = False) -> None:
-        """Adds a line to each page."""
-        if line:
-            self._count = len(line)
-        else:
-            self._count = 0
-        self._current_page.append(line)
-        self.close_page()
-
-    def add_image(self, image: str = None) -> None:
-        """Adds an image to a page."""
-        self.images.append(image)
-
-    @classmethod
-    async def paginate(
-        cls,
-        pages: t.List[t.Tuple[str, str]],
-        ctx: Context, embed: discord.Embed,
-        prefix: str = "",
-        suffix: str = "",
-        timeout: int = 300,
-        exception_on_empty_embed: bool = False
-    ) -> t.Optional[discord.Message]:
-        """
-        Use a paginator and set of reactions to provide pagination over a set of title/image pairs.
-
-        The reactions are used to switch page, or to finish with pagination.
-
-        When used, this will send a message using `ctx.send()` and apply a set of reactions to it. These reactions may
-        be used to change page, or to remove pagination from the message.
-
-        Note: Pagination will be removed automatically if no reaction is added for five minutes (300 seconds).
-
-        Example:
-        >>> embed = discord.Embed()
-        >>> embed.set_author(name="Some Operation", url=url, icon_url=icon)
-        >>> await ImagePaginator.paginate(pages, ctx, embed)
-        """
-        def check_event(reaction_: discord.Reaction, member: discord.Member) -> bool:
-            """Checks each reaction added, if it matches our conditions pass the wait_for."""
-            return all((
-                # Reaction is on the same message sent
-                reaction_.message.id == message.id,
-                # The reaction is part of the navigation menu
-                str(reaction_.emoji) in PAGINATION_EMOJI,
-                # The reactor is not a bot
-                not member.bot
-            ))
-
-        paginator = cls(prefix=prefix, suffix=suffix)
-        current_page = 0
-
-        if not pages:
-            if exception_on_empty_embed:
-                log.exception("Pagination asked for empty image list")
-                raise EmptyPaginatorEmbed("No images to paginate")
-
-            log.debug("No images to add to paginator, adding '(no images to display)' message")
-            pages.append(("(no images to display)", ""))
-
-        for text, image_url in pages:
-            paginator.add_line(text)
-            paginator.add_image(image_url)
-
-        embed.description = paginator.pages[current_page]
-        image = paginator.images[current_page]
-
-        if image:
-            embed.set_image(url=image)
-
-        if len(paginator.pages) <= 1:
-            return await ctx.send(embed=embed)
-
-        embed.set_footer(text=f"Page {current_page + 1}/{len(paginator.pages)}")
-        message = await ctx.send(embed=embed)
-
-        for emoji in PAGINATION_EMOJI:
-            await message.add_reaction(emoji)
-
-        while True:
-            # Start waiting for reactions
-            try:
-                reaction, user = await ctx.bot.wait_for("reaction_add", timeout=timeout, check=check_event)
-            except asyncio.TimeoutError:
-                log.debug("Timed out waiting for a reaction")
-                break  # We're done, no reactions for the last 5 minutes
-
-            # Deletes the users reaction
-            await message.remove_reaction(reaction.emoji, user)
-
-            # Delete reaction press - [:trashcan:]
-            if str(reaction.emoji) == DELETE_EMOJI:
-                log.debug("Got delete reaction")
-                return await message.delete()
-
-            # First reaction press - [:track_previous:]
-            if reaction.emoji == FIRST_EMOJI:
-                if current_page == 0:
-                    log.debug("Got first page reaction, but we're on the first page - ignoring")
-                    continue
-
-                current_page = 0
-                reaction_type = "first"
-
-            # Last reaction press - [:track_next:]
-            if reaction.emoji == LAST_EMOJI:
-                if current_page >= len(paginator.pages) - 1:
-                    log.debug("Got last page reaction, but we're on the last page - ignoring")
-                    continue
-
-                current_page = len(paginator.pages) - 1
-                reaction_type = "last"
-
-            # Previous reaction press - [:arrow_left: ]
-            if reaction.emoji == LEFT_EMOJI:
-                if current_page <= 0:
-                    log.debug("Got previous page reaction, but we're on the first page - ignoring")
-                    continue
-
-                current_page -= 1
-                reaction_type = "previous"
-
-            # Next reaction press - [:arrow_right:]
-            if reaction.emoji == RIGHT_EMOJI:
-                if current_page >= len(paginator.pages) - 1:
-                    log.debug("Got next page reaction, but we're on the last page - ignoring")
-                    continue
-
-                current_page += 1
-                reaction_type = "next"
-
-            # Magic happens here, after page and reaction_type is set
-            embed.description = paginator.pages[current_page]
-
-            image = paginator.images[current_page]
-            if image:
-                embed.set_image(url=image)
-
-            embed.set_footer(text=f"Page {current_page + 1}/{len(paginator.pages)}")
-            log.debug(f"Got {reaction_type} page reaction - changing to page {current_page + 1}/{len(paginator.pages)}")
-
-            await message.edit(embed=embed)
-
-        log.debug("Ending pagination and clearing reactions.")
-        with suppress(discord.NotFound):
-            await message.clear_reactions()
diff --git a/bot/rules/__init__.py b/bot/rules/__init__.py
index a01ceae73..8a69cadee 100644
--- a/bot/rules/__init__.py
+++ b/bot/rules/__init__.py
@@ -10,3 +10,4 @@ from .links import apply as apply_links
 from .mentions import apply as apply_mentions
 from .newlines import apply as apply_newlines
 from .role_mentions import apply as apply_role_mentions
+from .everyone_ping import apply as apply_everyone_ping
diff --git a/bot/rules/discord_emojis.py b/bot/rules/discord_emojis.py
index 5bab514f2..6e47f0197 100644
--- a/bot/rules/discord_emojis.py
+++ b/bot/rules/discord_emojis.py
@@ -5,6 +5,7 @@ from discord import Member, Message
 
 
 DISCORD_EMOJI_RE = re.compile(r"<:\w+:\d+>")
+CODE_BLOCK_RE = re.compile(r"```.*?```", flags=re.DOTALL)
 
 
 async def apply(
@@ -17,8 +18,9 @@ async def apply(
         if msg.author == last_message.author
     )
 
+    # Get rid of code blocks in the message before searching for emojis.
     total_emojis = sum(
-        len(DISCORD_EMOJI_RE.findall(msg.content))
+        len(DISCORD_EMOJI_RE.findall(CODE_BLOCK_RE.sub("", msg.content)))
         for msg in relevant_messages
     )
 
diff --git a/bot/rules/everyone_ping.py b/bot/rules/everyone_ping.py
new file mode 100644
index 000000000..89d9fe570
--- /dev/null
+++ b/bot/rules/everyone_ping.py
@@ -0,0 +1,41 @@
+import random
+import re
+from typing import Dict, Iterable, List, Optional, Tuple
+
+from discord import Embed, Member, Message
+
+from bot.constants import Colours, Guild, NEGATIVE_REPLIES
+
+# Generate regex for checking for pings:
+guild_id = Guild.id
+EVERYONE_RE_INLINE_CODE = re.compile(rf"^(?!`).*@everyone.*(?!`)$|^(?!`).*<@&{guild_id}>.*(?!`)$")
+EVERYONE_RE_MULTILINE_CODE = re.compile(rf"^(?!```).*@everyone.*(?!```)$|^(?!```).*<@&{guild_id}>.*(?!```)$")
+
+
+async def apply(
+    last_message: Message,
+    recent_messages: List[Message],
+    config: Dict[str, int],
+) -> Optional[Tuple[str, Iterable[Member], Iterable[Message]]]:
+    """Detects if a user has sent an '@everyone' ping."""
+    relevant_messages = tuple(msg for msg in recent_messages if msg.author == last_message.author)
+
+    everyone_messages_count = 0
+    for msg in relevant_messages:
+        num_everyone_pings_inline = len(re.findall(EVERYONE_RE_INLINE_CODE, msg.content))
+        num_everyone_pings_multiline = len(re.findall(EVERYONE_RE_MULTILINE_CODE, msg.content))
+        if num_everyone_pings_inline and num_everyone_pings_multiline:
+            everyone_messages_count += 1
+
+    if everyone_messages_count > config["max"]:
+        # Send the channel an embed giving the user more info:
+        embed_text = f"Please don't try to ping {last_message.guild.member_count:,} people."
+        embed = Embed(title=random.choice(NEGATIVE_REPLIES), description=embed_text, colour=Colours.soft_red)
+        await last_message.channel.send(embed=embed)
+
+        return (
+            "pinged the everyone role",
+            (last_message.author,),
+            relevant_messages,
+        )
+    return None
diff --git a/config-default.yml b/config-default.yml
index 324e39346..c5df37509 100644
--- a/config-default.yml
+++ b/config-default.yml
@@ -39,7 +39,7 @@ style:
         status_offline: "<:status_offline:470326266537705472>"
 
         badge_staff: "<:discord_staff:743882896498098226>"
-        badge_partner: "<:partner:743882897131569323>"
+        badge_partner: "<:partner:748666453242413136>"
         badge_hypesquad: "<:hypesquad_events:743882896892362873>"
         badge_bug_hunter: "<:bug_hunter_lvl1:743882896372269137>"
         badge_hypesquad_bravery: "<:hypesquad_bravery:743882896745693335>"
@@ -352,9 +352,13 @@ anti_spam:
             interval: 10
             max: 7
 
-        burst_shared:
-            interval: 10
-            max: 20
+        # Burst shared it (temporarily) disabled to prevent
+        # the bug that triggers multiple infractions/DMs per
+        # user. It also tends to catch a lot of innocent users
+        # now that we're so big.
+        # burst_shared:
+        #    interval: 10
+        #    max: 20
 
         chars:
             interval: 5
@@ -385,6 +389,12 @@ anti_spam:
             interval: 10
             max: 3
 
+        # The everyone ping filter is temporarily disabled
+        # until we've fixed a couple of bugs.
+        # everyone_ping:
+        #    interval: 10
+        #    max: 0
+
 
 reddit:
     subreddits:
@@ -393,13 +403,6 @@ reddit:
     secret:    !ENV "REDDIT_SECRET"
 
 
-wolfram:
-    # Max requests per day.
-    user_limit_day: 10
-    guild_limit_day: 67
-    key: !ENV "WOLFRAM_API_KEY"
-
-
 big_brother:
     log_delay: 15
     header_message_limit: 15
diff --git a/tests/bot/cogs/test_antimalware.py b/tests/bot/cogs/test_antimalware.py
index ecb7abf00..f50c0492d 100644
--- a/tests/bot/cogs/test_antimalware.py
+++ b/tests/bot/cogs/test_antimalware.py
@@ -23,6 +23,8 @@ class AntiMalwareCogTests(unittest.IsolatedAsyncioTestCase):
         }
         self.cog = antimalware.AntiMalware(self.bot)
         self.message = MockMessage()
+        self.message.webhook_id = None
+        self.message.author.bot = None
         self.whitelist = [".first", ".second", ".third"]
 
     async def test_message_with_allowed_attachment(self):
@@ -48,6 +50,26 @@ class AntiMalwareCogTests(unittest.IsolatedAsyncioTestCase):
 
         self.message.delete.assert_not_called()
 
+    async def test_webhook_message_with_illegal_extension(self):
+        """A webhook message containing an illegal extension should be ignored."""
+        attachment = MockAttachment(filename="python.disallowed")
+        self.message.webhook_id = 697140105563078727
+        self.message.attachments = [attachment]
+
+        await self.cog.on_message(self.message)
+
+        self.message.delete.assert_not_called()
+
+    async def test_bot_message_with_illegal_extension(self):
+        """A bot message containing an illegal extension should be ignored."""
+        attachment = MockAttachment(filename="python.disallowed")
+        self.message.author.bot = 409107086526644234
+        self.message.attachments = [attachment]
+
+        await self.cog.on_message(self.message)
+
+        self.message.delete.assert_not_called()
+
     async def test_message_with_illegal_extension_gets_deleted(self):
         """A message containing an illegal extension should send an embed."""
         attachment = MockAttachment(filename="python.disallowed")
diff --git a/tests/bot/cogs/test_cogs.py b/tests/bot/cogs/test_cogs.py
index fdda59a8f..30a04422a 100644
--- a/tests/bot/cogs/test_cogs.py
+++ b/tests/bot/cogs/test_cogs.py
@@ -53,6 +53,7 @@ class CommandNameTests(unittest.TestCase):
         """Return a list of all qualified names, including aliases, for the `command`."""
         names = [f"{command.full_parent_name} {alias}".strip() for alias in command.aliases]
         names.append(command.qualified_name)
+        names += getattr(command, "root_aliases", [])
 
         return names
 
diff --git a/tests/bot/test_pagination.py b/tests/bot/test_pagination.py
index ce880d457..630f2516d 100644
--- a/tests/bot/test_pagination.py
+++ b/tests/bot/test_pagination.py
@@ -44,18 +44,3 @@ class LinePaginatorTests(TestCase):
         self.paginator.add_line('x' * (self.paginator.scale_to_size + 1))
         # Note: item at index 1 is the truncated line, index 0 is prefix
         self.assertEqual(self.paginator._current_page[1], 'x' * self.paginator.scale_to_size)
-
-
-class ImagePaginatorTests(TestCase):
-    """Tests functionality of the `ImagePaginator`."""
-
-    def setUp(self):
-        """Create a paginator for the test method."""
-        self.paginator = pagination.ImagePaginator()
-
-    def test_add_image_appends_image(self):
-        """`add_image` appends the image to the image list."""
-        image = 'lemon'
-        self.paginator.add_image(image)
-
-        assert self.paginator.images == [image]