#--depends-on config
#--depends-on permissions
import re, string
from src import EventManager, ModuleManager, utils
from . import outs
COMMAND_METHOD = "command-method"
COMMAND_METHODS = ["PRIVMSG", "NOTICE"]
REGEX_ARG_NUMBER = re.compile(r"\$(\d+)(-?)")
MSGID_TAG = utils.irc.MessageTag("msgid", "draft/msgid")
NON_ALPHANUMERIC = [char for char in string.printable if not char.isalnum()]
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", "example": "!"})
@utils.export("serverset", {"setting": "command-prefix",
"help": "Set the command prefix used on this server", "example": "!"})
@utils.export("serverset", {"setting": "command-method",
"help": "Set the method used to respond to commands",
"validate": _command_method_validate, "example": "NOTICE"})
@utils.export("channelset", {"setting": "command-method",
"help": "Set the method used to respond to commands",
"validate": _command_method_validate, "example": "NOTICE"})
@utils.export("channelset", {"setting": "hide-prefix",
"help": "Disable/enable hiding prefix in command reponses",
"validate": utils.bool_or_none, "example": "on"})
@utils.export("channelset", {"setting": "commands",
"help": "Disable/enable responding to commands in-channel",
"validate": utils.bool_or_none, "example": "on"})
@utils.export("channelset", {"setting": "prefixed-commands",
"help": "Disable/enable responding to prefixed commands in-channel",
"validate": utils.bool_or_none, "example": "on"})
class Module(ModuleManager.BaseModule):
def on_load(self):
self.exports.add("is-ignored", self._is_ignored)
@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 _alias_arg_replace(self, s, args_split):
for match in REGEX_ARG_NUMBER.finditer(s):
index = int(match.group(1))
continuous = match.group(2) == "-"
if index >= len(args_split):
raise IndexError("Unknown alias arg index")
if continuous:
replace = " ".join(args_split[index:])
else:
replace = args_split[index]
s = s.replace(match.group(0), replace)
return s.split(" ")
def _command_method(self, target, server):
return target.get_setting(COMMAND_METHOD,
server.get_setting(COMMAND_METHOD, "PRIVMSG")).upper()
def _is_ignored(self, server, user, command):
if user.get_setting("ignore", False):
return True
elif user.get_setting("ignore-%s" % command, False):
return True
elif server.get_setting("ignore-%s" % command, False):
return True
return False
def _find_command_hook(self, server, command, is_channel, args_split):
if not self.has_command(command):
aliases = self._get_aliases(server)
if command.lower() in aliases:
command, _, new_args = aliases[command.lower()].partition(" ")
try:
args_split = self._alias_arg_replace(new_args, args_split)
except IndexError:
return None, None
hook = None
if self.has_command(command):
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()))
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
break
return hook, args_split
def command(self, server, target, target_str, is_channel, user, command,
args_split, tags, hook, **kwargs):
if self._is_ignored(server, user, command):
return False
module_name = self._get_prefix(hook) or ""
if not module_name and hasattr(hook.function, "__self__"):
module_name = hook.function.__self__._name
send_tags = {}
msgid = MSGID_TAG.get_value(tags)
if msgid:
send_tags["+draft/reply"] = msgid
stdout = outs.StdOut(server, module_name, target, target_str, send_tags)
stderr = outs.StdErr(server, module_name, target, target_str, send_tags)
command_method = self._command_method(target, 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(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=user, server=server, target=target,
is_channel=is_channel, tags=tags, args_split=args_split,
command=command, **kwargs)
hard_fail = False
force_success = False
error = None
for returned in returns:
if returned == utils.consts.PERMISSION_HARD_FAIL:
hard_fail = True
break
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)
return True
args = " ".join(args_split)
new_event = self.events.on(hook.event_name).make_event(user=user,
server=server, target=target, args=args, tags=tags,
args_split=args_split, stdout=stdout, stderr=stderr,
is_channel=is_channel, command=command, **kwargs)
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, server)
stdout.send(command_method)
stderr.send(command_method)
target.last_stdout = stdout
target.last_stderr = stderr
return new_event.eaten
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):
if event["action"]:
return
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"])
command = None
args_split = None
if event["message_split"][0].startswith(command_prefix):
if not prefixed_commands:
return
command = event["message_split"][0].replace(
command_prefix, "", 1).lower()
args_split = event["message_split"][1:]
elif len(event["message_split"]) > 1 and self.is_highlight(
event["server"], event["message_split"][0]):
command = event["message_split"][1].lower()
args_split = event["message_split"][2:]
if command:
hook, args_split = self._find_command_hook(event["server"], command,
True, args_split)
if hook:
self.command(event["server"], event["channel"],
event["target_str"], True, event["user"], command,
args_split, event["tags"], hook,
command_prefix=command_prefix)
event["channel"].buffer.skip_next()
else:
regex_hook = self.events.on("command.regex").get_hooks()
for hook in regex_hook:
pattern = hook.get_kwarg("pattern", None)
if not pattern and hook.get_kwarg("pattern-url", None) == "1":
pattern = utils.http.REGEX_URL
if pattern:
match = re.search(pattern, event["message"])
if match:
command = hook.get_kwarg("command", "")
res = self.command(event["server"], event["channel"],
event["target_str"], True, event["user"], command,
"", event["tags"], hook, match=match,
message=event["message"], command_prefix="")
if res:
break
@utils.hook("received.message.private", priority=EventManager.PRIORITY_LOW)
def private_message(self, event):
if event["message_split"] and not event["action"]:
command = event["message_split"][0].lower()
# this should help catch commands when people try to do prefixed
# commands ('!help' rather than 'help') in PM
command = command.lstrip("".join(NON_ALPHANUMERIC))
args_split = event["message_split"][1:]
hook, args_split = self._find_command_hook(event["server"], command,
False, args_split)
if hook:
self.command(event["server"], event["user"],
event["user"].nickname, False, event["user"], command,
args_split, event["tags"], hook, command_prefix="")
event["user"].buffer.skip_next()
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 _all_command_hooks(self):
all_hooks = {}
for child_name in self.events.on("received.command").get_children():
hooks = self.events.on("received.command").on(child_name
).get_hooks()
if hooks:
all_hooks[child_name.lower()] = hooks[0]
return all_hooks
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: [module [command]]
"""
if event["args"]:
module_name = event["args_split"][0]
module = self.bot.modules.from_name(module_name)
if module == None:
raise utils.EventError("No such module '%s'" % module_name)
if len(event["args_split"]) == 1:
commands = []
for command, command_hook in self._all_command_hooks().items():
if (command_hook.context == module.context and
not self._get_alias_of(command_hook)):
commands.append(command)
event["stdout"].write("Commands for %s module: %s" % (
module.name, ", ".join(commands)))
else:
requested_command = event["args_split"][1].lower()
available_commands = self._all_command_hooks()
if requested_command in available_commands:
command_hook = available_commands[requested_command]
help = self._get_help(command_hook)
if help:
event["stdout"].write("%s: %s" % (
requested_command, help))
else:
event["stderr"].write("No help available for %s" %
requested_command)
else:
event["stderr"].write("Unknown command '%s'" %
requested_command)
else:
contexts = {}
for command, command_hook in self._all_command_hooks().items():
if not command_hook.context in contexts:
module = self.bot.modules.from_context(command_hook.context)
contexts[module.context] = module.name
modules_available = sorted(contexts.values())
event["stdout"].write("Modules: %s" % ", ".join(modules_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> [command]
:permission: ignore
"""
setting = "ignore"
for_str = ""
if len(event["args_split"]) > 1:
command = event["args_split"][1].lower()
setting = "ignore-%s" % command
for_str = " for '%s'" % command
user = event["server"].get_user(event["args_split"][0])
if user.get_setting(setting, False):
event["stderr"].write("I'm already ignoring '%s'%s" %
(user.nickname, for_str))
else:
user.set_setting(setting, True)
event["stdout"].write("Now ignoring '%s'%s" %
(user.nickname, for_str))
@utils.hook("received.command.unignore", min_args=1)
def unignore(self, event):
"""
:help: Unignore commands from a given user
:usage: <nickname> [command]
:permission: unignore
"""
setting = "ignore"
for_str = ""
if len(event["args_split"]) > 1:
command = event["args_split"][1].lower()
setting = "ignore-%s" % command
for_str = " for '%s'" % command
user = event["server"].get_user(event["args_split"][0])
if not user.get_setting(setting, False):
event["stderr"].write("I'm not ignoring '%s'%s" %
(user.nickname, for_str))
else:
user.del_setting(setting)
event["stdout"].write("Removed ignore for '%s'%s" %
(user.nickname, for_str))
@utils.hook("received.command.serverignore", in_args=1)
def server_ignore(self, event):
"""
:permission: server-ignore
"""
command = event["args_split"][0].lower()
setting = "ignore-%s" % command
if event["server"].get_setting(setting, False):
event["stderr"].write("I'm already ignoring '%s' for %s" %
(command, str(event["server"])))
else:
event["server"].set_setting(setting, True)
event["stdout"].write("Now ignoring '%s' for %s" %
(command, str(event["server"])))
@utils.hook("received.command.serverunignore", in_args=1)
def server_unignore(self, event):
"""
:permission: server-unignore
"""
command = event["args_split"][0].lower()
setting = "ignore-%s" % command
if not event["server"].get_setting(setting, False):
event["stderr"].write("I'm not ignoring '%s' for %s" %
(command, str(event["server"])))
else:
event["server"].del_setting(setting)
event["stdout"].write("No longer ignoring '%s' for %s" %
(command, str(event["server"])))
@utils.hook("send.stdout")
def send_stdout(self, event):
target = event["target"]
stdout = outs.StdOut(event["server"], event["module_name"],
target, event.get("target_str", target.name), {})
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):
target = event["target"]
stderr = outs.StdErr(event["server"], event["module_name"],
target, event.get("target_str", target.name), {})
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)