bitbot-3.11-fork/modules/commands/__init__.py

385 lines
15 KiB
Python

import re
from src import EventManager, ModuleManager, utils
from . import outs
COMMAND_METHOD = "command-method"
COMMAND_METHODS = ["PRIVMSG", "NOTICE"]
REGEX_CUTOFF = re.compile(r"^.{1,%d}(?:\s|$)" % OUT_CUTOFF)
REGEX_ARG_NUMBER = re.compile(r"\$(\d+)")
def _command_method_validate(s):
if s.upper() in COMMAND_METHODS:
return s.upper()
@utils.export("channelset", {"setting": "command-prefix",
"help": "Set the command prefix used in this channel"})
@utils.export("serverset", {"setting": "command-prefix",
"help": "Set the command prefix used on this server"})
@utils.export("serverset", {"setting": "command-method",
"help": "Set the method used to respond to commands",
"validate": _command_method_validate})
@utils.export("channelset", {"setting": "command-method",
"help": "Set the method used to respond to commands",
"validate": _command_method_validate})
@utils.export("channelset", {"setting": "hide-prefix",
"help": "Disable/enable hiding prefix in command reponses",
"validate": utils.bool_or_none})
@utils.export("channelset", {"setting": "commands",
"help": "Disable/enable responding to commands in-channel",
"validate": utils.bool_or_none})
@utils.export("channelset", {"setting": "prefixed-commands",
"help": "Disable/enable responding to prefixed commands in-channel",
"validate": utils.bool_or_none})
class Module(ModuleManager.BaseModule):
@utils.hook("new.user|channel")
def new(self, event):
if "user" in event:
target = event["user"]
else:
target = event["channel"]
target.last_stdout = None
target.last_stderr = None
def has_command(self, command):
return command.lower() in self.events.on("received").on(
"command").get_children()
def get_hooks(self, command):
return self.events.on("received.command").on(command
).get_hooks()
def is_highlight(self, server, s):
if s and s[-1] in [":", ","]:
s = s[:-1]
return server.is_own_nickname(s)
def _get_aliases(self, server):
return server.get_setting("command-aliases", {})
def _set_aliases(self, server, aliases):
server.set_setting("command-aliases", aliases)
def _command_method(self, target, server):
return target.get_setting(COMMAND_METHOD,
server.get_setting(COMMAND_METHOD, "PRIVMSG")).upper()
def message(self, event, command, args_index=1):
args_split = event["message_split"][args_index:]
if not self.has_command(command):
aliases = self._get_aliases(event["server"])
if command.lower() in aliases:
command, _, new_args = aliases[command.lower()].partition(" ")
for match in REGEX_ARG_NUMBER.finditer(new_args):
index = int(match.group(1))
if index >= len(args_split):
return
new_args = new_args.replace(match.group(0),
args_split[index])
args_split = new_args.split(" ")
if self.has_command(command):
ignore = event["user"].get_setting("ignore", False)
if ignore:
return
hook = None
target = None
for potential_hook in self.get_hooks(command):
alias_of = self._get_alias_of(potential_hook)
if alias_of:
if self.has_command(alias_of):
potential_hook = self.get_hooks(alias_of)[0]
else:
raise ValueError(
"'%s' is an alias of unknown command '%s'"
% (command.lower(), alias_of.lower()))
is_channel = "channel" in event
if not is_channel and potential_hook.kwargs.get("channel_only"):
continue
if is_channel and potential_hook.kwargs.get("private_only"):
continue
hook = potential_hook
target = event["user"] if not is_channel else event["channel"]
break
if not hook:
return
module_name = self._get_prefix(hook) or ""
if not module_name and hasattr(hook.function, "__self__"):
module_name = hook.function.__self__._name
msgid = event["tags"].get("draft/msgid", None)
statusmsg = "".join(event.get("statusmsg", []))
stdout = outs.StdOut(event["server"], module_name, target, msgid,
statusmsg)
stderr = outs.StdErr(event["server"], module_name, target, msgid,
statusmsg)
command_method = self._command_method(target, event["server"])
if hook.kwargs.get("remove_empty", True):
args_split = list(filter(None, args_split))
min_args = hook.kwargs.get("min_args")
if min_args and len(args_split) < min_args:
command_prefix = ""
if is_channel:
command_prefix = self._command_prefix(event["server"],
target)
usage = self._get_usage(hook, command, command_prefix)
if usage:
stderr.write("Not enough arguments, usage: %s" %
usage).send(command_method)
else:
stderr.write("Not enough arguments (minimum: %d)" %
min_args).send(command_method)
else:
returns = self.events.on("preprocess.command").call_unsafe(
hook=hook, user=event["user"], server=event["server"],
target=target, is_channel=is_channel, tags=event["tags"],
args_split=args_split)
hard_fail = False
force_success = False
error = None
for returned in returns:
if returned == utils.consts.PERMISSION_HARD_FAIL:
hard_fail = True
elif returned == utils.consts.PERMISSION_FORCE_SUCCESS:
force_success = True
elif returned:
error = returned
if hard_fail or (not force_success and error):
if error:
stderr.write(error).send(command_method)
target.buffer.skip_next()
return
args = " ".join(args_split)
server = event["server"]
user = event["user"]
new_event = self.events.on("received.command").on(command
).make_event(user=user, server=server, target=target,
args=args, tags=event["tags"], args_split=args_split,
stdout=stdout, stderr=stderr, command=command.lower(),
is_channel=is_channel)
self.log.trace("calling command '%s': %s",
[command, new_event.kwargs])
try:
hook.call(new_event)
except utils.EventError as e:
stderr.write(str(e))
if not hook.kwargs.get("skip_out", False):
command_method = self._command_method(
target, event["server"])
stdout.send(command_method)
stderr.send(command_method)
target.last_stdout = stdout
target.last_stderr = stderr
target.buffer.skip_next()
event.eat()
def _command_prefix(self, server, channel):
return channel.get_setting("command-prefix",
server.get_setting("command-prefix", "!"))
@utils.hook("received.message.channel", priority=EventManager.PRIORITY_LOW)
def channel_message(self, event):
commands_enabled = event["channel"].get_setting("commands", True)
if not commands_enabled:
return
prefixed_commands = event["channel"].get_setting("prefixed-commands", True)
command_prefix = self._command_prefix(event["server"], event["channel"])
if event["message_split"][0].startswith(command_prefix):
if not prefixed_commands:
return
command = event["message_split"][0].replace(
command_prefix, "", 1).lower()
self.message(event, command)
elif len(event["message_split"]) > 1 and self.is_highlight(
event["server"], event["message_split"][0]):
command = event["message_split"][1].lower()
self.message(event, command, 2)
@utils.hook("received.message.private", priority=EventManager.PRIORITY_LOW)
def private_message(self, event):
if event["message_split"]:
command = event["message_split"][0].lower()
self.message(event, command)
def _get_help(self, hook):
return hook.get_kwarg("help", None) or hook.docstring.description
def _get_usage(self, hook, command, command_prefix=""):
command = "%s%s" % (command_prefix, command)
usage = hook.get_kwarg("usage", None)
if usage:
usages = [usage]
else:
usages = hook.docstring.var_items.get("usage", None)
if usages:
return " | ".join(
"%s %s" % (command, usage) for usage in usages)
return usage
def _get_prefix(self, hook):
return hook.get_kwarg("prefix", None)
def _get_alias_of(self, hook):
return hook.get_kwarg("alias_of", None)
@utils.hook("received.command.help")
def help(self, event):
"""
:help: Show help for a given command
:usage: [command]
"""
if event["args"]:
command = event["args_split"][0].lower()
if command in self.events.on("received").on(
"command").get_children():
hooks = self.events.on("received.command").on(command).get_hooks()
help = self._get_help(hooks[0])
if help:
event["stdout"].write("%s: %s" % (command, help))
else:
event["stderr"].write("No help available for %s" % command)
else:
event["stderr"].write("Unknown command '%s'" % command)
else:
help_available = []
for child in self.events.on("received.command").get_children():
hooks = self.events.on("received.command").on(child).get_hooks()
if hooks and self._get_help(hooks[0]
) and not self._get_alias_of(hooks[0]):
help_available.append(child)
help_available = sorted(help_available)
event["stdout"].write("Commands: %s" % ", ".join(help_available))
@utils.hook("received.command.usage", min_args=1)
def usage(self, event):
"""
:help: Show the usage for a given command
:usage: <command>
"""
command_prefix = ""
if event["is_channel"]:
command_prefix = self._command_prefix(event["server"],
event["target"])
command = event["args_split"][0].lower()
if command in self.events.on("received").on(
"command").get_children():
hooks = self.events.on("received.command").on(command).get_hooks()
usage = self._get_usage(hooks[0], command, command_prefix)
if usage:
event["stdout"].write("Usage: %s" % usage)
else:
event["stderr"].write("No usage help available for %s" % command)
else:
event["stderr"].write("Unknown command '%s'" % command)
@utils.hook("received.command.more", skip_out=True)
def more(self, event):
"""
:help: Show more output from the last command
"""
if event["target"].last_stdout and event["target"].last_stdout.has_text():
event["target"].last_stdout.send(
self._command_method(event["target"], event["server"]))
@utils.hook("received.command.ignore", min_args=1)
def ignore(self, event):
"""
:help: Ignore commands from a given user
:usage: <nickname>
:permission: ignore
"""
user = event["server"].get_user(event["args_split"][0])
if user.get_setting("ignore", False):
event["stderr"].write("I'm already ignoring '%s'" %
user.nickname)
else:
user.set_setting("ignore", True)
event["stdout"].write("Now ignoring '%s'" % user.nickname)
@utils.hook("received.command.unignore", min_args=1)
def unignore(self, event):
"""
:help: Unignore commands from a given user
:usage: <nickname>
:permission: unignore
"""
user = event["server"].get_user(event["args_split"][0])
if not user.get_setting("ignore", False):
event["stderr"].write("I'm not ignoring '%s'" % user.nickname)
else:
user.set_setting("ignore", False)
event["stdout"].write("Removed ignore for '%s'" % user.nickname)
@utils.hook("send.stdout")
def send_stdout(self, event):
stdout = outs.StdOut(event["server"], event["module_name"],
event["target"], event.get("msgid", None),
event.get("statusmsg", ""))
if event.get("hide_prefix", False):
stdout.hide_prefix()
stdout.write(event["message"]).send(
self._command_method(event["target"], event["server"]))
if stdout.has_text():
event["target"].last_stdout = stdout
@utils.hook("send.stderr")
def send_stderr(self, event):
stderr = outs.StdErr(event["server"], event["module_name"],
event["target"], event.get("msgid", None),
event.get("statusmsg", ""))
if event.get("hide_prefix", False):
stderr.hide_prefix()
stderr.write(event["message"]).send(
self._command_method(event["target"], event["server"]))
if stderr.has_text():
event["target"].last_stderr = stderr
@utils.hook("received.command.alias", min_args=2)
def add_alias(self, event):
"""
:help: Add a command alias
:usage: <alias> <command> <args...>
:permission: command-alias
"""
alias = event["args_split"][0].lower()
command = " ".join(event["args_split"][1:])
aliases = self._get_aliases(event["server"])
aliases[alias] = command
self._set_aliases(event["server"], aliases)
event["stdout"].write("Added '%s' alias" % alias)
@utils.hook("received.command.removealias", min_args=1)
def remove_alias(self, event):
"""
:help: Remove a command alias
:usage: <alias>
:permission: command-alias
"""
alias = event["args_split"][0].lower()
aliases = self._get_aliases(event["server"])
if not alias in aliases:
raise utils.EventError("No '%s' alias" % alias)
del aliases[alias]
self._set_aliases(event["server"], aliases)
event["stdout"].write("Removed '%s' alias" % alias)