diff options
| author |  Leon Sandøy <[email protected]> | 2018-11-20 13:06:12 +0100 |
|---|---|---|
| committer | Leon Sandøy <[email protected]> | 2018-11-20 13:06:12 +0100 |
| commit | 7cab2e97966d0f40a3bdfe3dd1b950c05682b1b8 (patch) | |
| tree | 8a9c1e4a1b4b875ef9901fdee7ecad390def080a | |
| parent | Add badges to README (diff) | |
| parent | solving some flake8 issues (diff) | |
Merge branch 'DerpDays-master'
| -rw-r--r-- | bot/cogs/error_handler.py | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/bot/cogs/error_handler.py b/bot/cogs/error_handler.py new file mode 100644 index 00000000..79780251 --- /dev/null +++ b/bot/cogs/error_handler.py @@ -0,0 +1,106 @@ +import logging
+import math
+import sys
+import traceback
+
+from discord.ext import commands
+
+
+class CommandErrorHandler:
+ """A error handler for the PythonDiscord server!"""
+
+ def __init__(self, bot):
+ self.bot = bot
+
+ async def on_command_error(self, ctx, error):
+ """Activates when a command opens an error"""
+
+ if hasattr(ctx.command, 'on_error'):
+ return logging.debug(
+ "A command error occured but " +
+ "the command had it's own error handler"
+ )
+ error = getattr(error, 'original', error)
+ if isinstance(error, commands.CommandNotFound):
+ return logging.debug(
+ f"{ctx.author} called '{ctx.message.content}' " +
+ "but no command was found"
+ )
+ if isinstance(error, commands.UserInputError):
+ logging.debug(
+ f"{ctx.author} called the command '{ctx.command}' " +
+ "but entered invalid input!"
+ )
+ return await ctx.send(
+ ":no_entry: The command you specified failed to run." +
+ "This is because the arguments you provided were invalid."
+ )
+ if isinstance(error, commands.CommandOnCooldown):
+ logging.debug(
+ f"{ctx.author} called the command '{ctx.command}' " +
+ "but they were on cooldown!"
+ )
+ return await ctx.send(
+ "This command is on cooldown," +
+ f" please retry in {math.ceil(error.retry_after)}s."
+ )
+ if isinstance(error, commands.DisabledCommand):
+ logging.debug(
+ f"{ctx.author} called the command '{ctx.command}' " +
+ "but the command was disabled!"
+ )
+ return await ctx.send(
+ ":no_entry: This command has been disabled."
+ )
+ if isinstance(error, commands.NoPrivateMessage):
+ logging.debug(
+ f"{ctx.author} called the command '{ctx.command}' " +
+ "in a private message however the command was guild only!"
+ )
+ return await ctx.author.send(
+ ":no_entry: This command can only be used inside a server."
+ )
+ if isinstance(error, commands.BadArgument):
+ if ctx.command.qualified_name == 'tag list':
+ logging.debug(
+ f"{ctx.author} called the command '{ctx.command}' " +
+ "but entered an invalid user!"
+ )
+ return await ctx.send(
+ "I could not find that member. Please try again."
+ )
+ else:
+ logging.debug(
+ f"{ctx.author} called the command '{ctx.command}' " +
+ "but entered a bad argument!"
+ )
+ return await ctx.send(
+ "The argument you provided was invalid."
+ )
+ if isinstance(error, commands.CheckFailure):
+ logging.debug(
+ f"{ctx.author} called the command '{ctx.command}' " +
+ "but the checks failed!"
+ )
+ return await ctx.send(
+ ":no_entry: You are not authorized to use this command."
+ )
+ print(
+ f"Ignoring exception in command {ctx.command}:",
+ file=sys.stderr
+ )
+ logging.warning(
+ f"{ctx.author} called the command '{ctx.command}' " +
+ "however the command failed to run with the error:" +
+ f"-------------\n{error}"
+ )
+ traceback.print_exception(
+ type(error),
+ error,
+ error.__traceback__,
+ file=sys.stderr
+ )
+
+
+def setup(bot):
+ bot.add_cog(CommandErrorHandler(bot))
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