412 lines
15 KiB
Python
412 lines
15 KiB
Python
import re
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from src import EventManager, ModuleManager, utils
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STR_MORE = "%s (more...)" % utils.consts.RESET
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STR_CONTINUED = "(...continued) "
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COMMAND_METHOD = "command-method"
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COMMAND_METHODS = ["PRIVMSG", "NOTICE"]
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OUT_CUTOFF = 400
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REGEX_CUTOFF = re.compile(r"^.{1,%d}(?:\s|$)" % OUT_CUTOFF)
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REGEX_ARG_NUMBER = re.compile(r"\$(\d+)")
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class Out(object):
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def __init__(self, server, module_name, target, msgid):
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self.server = server
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self.module_name = module_name
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self._hide_prefix = False
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self.target = target
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self._text = ""
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self.written = False
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self._msgid = msgid
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def write(self, text):
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self._text += text
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self.written = True
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return self
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def send(self):
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if self.has_text():
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text = self._text
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text_encoded = text.encode("utf8")
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if len(text_encoded) > OUT_CUTOFF:
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text = "%s%s" % (text_encoded[:OUT_CUTOFF].decode("utf8"
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).rstrip(), STR_MORE)
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self._text = "%s%s" % (STR_CONTINUED, text_encoded[OUT_CUTOFF:
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].decode("utf8").lstrip())
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else:
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self._text = ""
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tags = {}
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if self._msgid:
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tags["+draft/reply"] = self._msgid
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prefix = ""
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if not self._hide_prefix:
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prefix = utils.consts.RESET + "[%s] " % self.prefix()
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method = self._get_method()
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if method == "PRIVMSG":
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self.target.send_message(text, prefix=prefix, tags=tags)
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elif method == "NOTICE":
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self.target.send_notice(text, prefix=prefix, tags=tags)
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def _get_method(self):
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return self.target.get_setting(COMMAND_METHOD,
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self.server.get_setting(COMMAND_METHOD, "PRIVMSG")).upper()
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def set_prefix(self, prefix):
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self.module_name = prefix
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def hide_prefix(self):
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self._hide_prefix = True
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def has_text(self):
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return bool(self._text)
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class StdOut(Out):
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def prefix(self):
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return utils.irc.color(utils.irc.bold(self.module_name),
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utils.consts.GREEN)
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class StdErr(Out):
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def prefix(self):
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return utils.irc.color(utils.irc.bold("!"+self.module_name),
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utils.consts.RED)
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def _command_method_validate(s):
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if s.upper() in COMMAND_METHODS:
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return s.upper()
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@utils.export("channelset", {"setting": "command-prefix",
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"help": "Set the command prefix used in this channel"})
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@utils.export("serverset", {"setting": "command-prefix",
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"help": "Set the command prefix used on this server"})
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@utils.export("serverset", {"setting": "command-method",
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"help": "Set the method used to respond to commands",
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"validate": _command_method_validate})
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@utils.export("channelset", {"setting": "command-method",
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"help": "Set the method used to respond to commands",
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"validate": _command_method_validate})
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@utils.export("channelset", {"setting": "hide-prefix",
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"help": "Disable/enable hiding prefix in command reponses",
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"validate": utils.bool_or_none})
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@utils.export("channelset", {"setting": "commands",
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"help": "Disable/enable responding to commands in-channel",
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"validate": utils.bool_or_none})
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@utils.export("channelset", {"setting": "prefixed-commands",
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"help": "Disable/enable responding to prefixed commands in-channel",
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"validate": utils.bool_or_none})
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class Module(ModuleManager.BaseModule):
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@utils.hook("new.user|channel")
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def new(self, event):
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if "user" in event:
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target = event["user"]
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else:
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target = event["channel"]
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target.last_stdout = None
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target.last_stderr = None
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def has_command(self, command):
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return command.lower() in self.events.on("received").on(
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"command").get_children()
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def get_hook(self, command):
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return self.events.on("received.command").on(command
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).get_hooks()[0]
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def is_highlight(self, server, s):
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if s and s[-1] in [":", ","]:
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s = s[:-1]
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return server.is_own_nickname(s)
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def _get_aliases(self, server):
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return server.get_setting("command-aliases", {})
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def _set_aliases(self, server, aliases):
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server.set_setting("command-aliases", aliases)
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def message(self, event, command, args_index=1):
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args_split = event["message_split"][args_index:]
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if not self.has_command(command):
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aliases = self._get_aliases(event["server"])
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if command.lower() in aliases:
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command, _, new_args = aliases[command.lower()].partition(" ")
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for match in REGEX_ARG_NUMBER.finditer(new_args):
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index = int(match.group(1))
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if index >= len(args_split):
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return
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new_args = new_args.replace(match.group(0),
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args_split[index])
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args_split = new_args.split(" ")
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if self.has_command(command):
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ignore = event["user"].get_setting("ignore", False)
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if ignore:
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return
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hook = self.get_hook(command)
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alias_of = self._get_alias_of(hook)
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if alias_of:
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if self.has_command(alias_of):
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hook = self.get_hook(alias_of)
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else:
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raise ValueError("'%s' is an alias of unknown command '%s'"
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% (command.lower(), alias_of.lower()))
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is_channel = False
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if "channel" in event:
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target = event["channel"]
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is_channel = True
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else:
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target = event["user"]
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if not is_channel and hook.kwargs.get("channel_only"):
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return
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if is_channel and hook.kwargs.get("private_only"):
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return
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module_name = self._get_prefix(hook) or ""
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if not module_name and hasattr(hook.function, "__self__"):
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module_name = hook.function.__self__._name
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msgid = event["tags"].get("draft/msgid", None)
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stdout = StdOut(event["server"], module_name, target, msgid)
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stderr = StdErr(event["server"], module_name, target, msgid)
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returns = self.events.on("preprocess.command").call_unsafe(
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hook=hook, user=event["user"], server=event["server"],
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target=target, is_channel=is_channel, tags=event["tags"])
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for returned in returns:
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if returned == False:
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# denotes a "silent failure"
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target.buffer.skip_next()
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return
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if returned:
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# error message
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stderr.write(returned).send()
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target.buffer.skip_next()
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return
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if hook.kwargs.get("remove_empty", True):
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args_split = list(filter(None, args_split))
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min_args = hook.kwargs.get("min_args")
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if min_args and len(args_split) < min_args:
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usage = self._get_usage(hook, command)
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if usage:
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stderr.write("Not enough arguments, usage: %s" %
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usage).send()
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else:
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stderr.write("Not enough arguments (minimum: %d)" %
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min_args).send()
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else:
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args = " ".join(args_split)
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server = event["server"]
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user = event["user"]
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try:
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self.events.on("received.command").on(command
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).call_unsafe_limited(1, user=user, server=server,
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target=target, args=args, tags=event["tags"],
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args_split=args_split, stdout=stdout, stderr=stderr,
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command=command.lower(), is_channel=is_channel)
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except utils.EventError as e:
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stderr.write(str(e))
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if not hook.kwargs.get("skip_out", False):
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stdout.send()
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stderr.send()
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target.last_stdout = stdout
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target.last_stderr = stderr
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target.buffer.skip_next()
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event.eat()
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@utils.hook("received.message.channel", priority=EventManager.PRIORITY_LOW)
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def channel_message(self, event):
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commands_enabled = event["channel"].get_setting("commands", True)
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if not commands_enabled:
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return
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prefixed_commands = event["channel"].get_setting("prefixed-commands", True)
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command_prefix = event["channel"].get_setting("command-prefix",
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event["server"].get_setting("command-prefix", "!"))
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if event["message_split"][0].startswith(command_prefix):
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if not prefixed_commands:
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return
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command = event["message_split"][0].replace(
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command_prefix, "", 1).lower()
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self.message(event, command)
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elif len(event["message_split"]) > 1 and self.is_highlight(
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event["server"], event["message_split"][0]):
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command = event["message_split"][1].lower()
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self.message(event, command, 2)
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@utils.hook("received.message.private", priority=EventManager.PRIORITY_LOW)
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def private_message(self, event):
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if event["message_split"]:
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command = event["message_split"][0].lower()
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self.message(event, command)
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def _get_help(self, hook):
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return hook.get_kwarg("help", None) or hook.docstring.description
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def _get_usage(self, hook, command):
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usage = hook.get_kwarg("usage", None)
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if usage:
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usages = [usage]
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else:
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usages = hook.docstring.var_items.get("usage", None)
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if usages:
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return " | ".join(
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"%s %s" % (command, usage) for usage in usages)
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return usage
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def _get_prefix(self, hook):
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return hook.get_kwarg("prefix", None)
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def _get_alias_of(self, hook):
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return hook.get_kwarg("alias_of", None)
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@utils.hook("received.command.help")
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def help(self, event):
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"""
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:help: Show help for a given command
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:usage: [command]
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"""
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if event["args"]:
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command = event["args_split"][0].lower()
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if command in self.events.on("received").on(
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"command").get_children():
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hooks = self.events.on("received.command").on(command).get_hooks()
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help = self._get_help(hooks[0])
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if help:
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event["stdout"].write("%s: %s" % (command, help))
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else:
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event["stderr"].write("No help available for %s" % command)
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else:
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event["stderr"].write("Unknown command '%s'" % command)
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else:
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help_available = []
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for child in self.events.on("received.command").get_children():
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hooks = self.events.on("received.command").on(child).get_hooks()
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if hooks and self._get_help(hooks[0]
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) and not self._get_alias_of(hooks[0]):
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help_available.append(child)
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help_available = sorted(help_available)
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event["stdout"].write("Commands: %s" % ", ".join(help_available))
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@utils.hook("received.command.usage", min_args=1)
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def usage(self, event):
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"""
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:help: Show the usage for a given command
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:usage: <command>
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"""
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command_prefix = ""
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if event["is_channel"]:
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command_prefix = event["target"].get_setting("command-prefix",
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event["server"].get_setting("command-prefix", "!"))
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command = event["args_split"][0].lower()
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if command in self.events.on("received").on(
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"command").get_children():
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command_str = "%s%s" % (command_prefix, command)
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hooks = self.events.on("received.command").on(command).get_hooks()
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usage = self._get_usage(hooks[0], command_str)
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if usage:
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event["stdout"].write("Usage: %s" % usage)
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else:
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event["stderr"].write("No usage help available for %s" % command)
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else:
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event["stderr"].write("Unknown command '%s'" % command)
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@utils.hook("received.command.more", skip_out=True)
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def more(self, event):
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"""
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:help: Show more output from the last command
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"""
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if event["target"].last_stdout and event["target"].last_stdout.has_text():
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event["target"].last_stdout.send()
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@utils.hook("received.command.ignore", min_args=1)
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def ignore(self, event):
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"""
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:help: Ignore commands from a given user
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:usage: <nickname>
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:permission: ignore
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"""
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user = event["server"].get_user(event["args_split"][0])
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if user.get_setting("ignore", False):
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event["stderr"].write("I'm already ignoring '%s'" %
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user.nickname)
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else:
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user.set_setting("ignore", True)
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event["stdout"].write("Now ignoring '%s'" % user.nickname)
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@utils.hook("received.command.unignore", min_args=1)
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def unignore(self, event):
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"""
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:help: Unignore commands from a given user
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:usage: <nickname>
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:permission: unignore
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"""
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user = event["server"].get_user(event["args_split"][0])
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if not user.get_setting("ignore", False):
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event["stderr"].write("I'm not ignoring '%s'" % user.nickname)
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else:
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user.set_setting("ignore", False)
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event["stdout"].write("Removed ignore for '%s'" % user.nickname)
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@utils.hook("send.stdout")
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def send_stdout(self, event):
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stdout = StdOut(event["server"], event["module_name"],
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event["target"], event.get("msgid", None))
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if event.get("hide_prefix", False):
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stdout.hide_prefix()
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stdout.write(event["message"]).send()
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if stdout.has_text():
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event["target"].last_stdout = stdout
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@utils.hook("send.stderr")
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def send_stderr(self, event):
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stderr = StdErr(event["server"], event["module_name"],
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event["target"], event.get("msgid", None))
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if event.get("hide_prefix", False):
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stderr.hide_prefix()
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stderr.write(event["message"]).send()
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if stderr.has_text():
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event["target"].last_stderr = stderr
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@utils.hook("received.command.alias", min_args=2)
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def add_alias(self, event):
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"""
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:help: Add a command alias
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:usage: <alias> <command> <args...>
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:permission: command-alias
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"""
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alias = event["args_split"][0].lower()
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command = " ".join(event["args_split"][1:])
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aliases = self._get_aliases(event["server"])
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aliases[alias] = command
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self._set_aliases(event["server"], aliases)
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event["stdout"].write("Added '%s' alias" % alias)
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@utils.hook("received.command.removealias", min_args=1)
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def remove_alias(self, event):
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"""
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:help: Remove a command alias
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:usage: <alias>
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:permission: command-alias
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"""
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alias = event["args_split"][0].lower()
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aliases = self._get_aliases(event["server"])
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if not alias in aliases:
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raise utils.EventError("No '%s' alias" % alias)
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del aliases[alias]
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self._set_aliases(event["server"], aliases)
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event["stdout"].write("Removed '%s' alias" % alias)
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