--- /dev/null
+# -*- coding: utf-8 -*-
+
+# Copyright (C) 1999-2002 Joel Rosdahl
+# Portions Copyright © 2011 Jason R. Coombs
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# keltus <keltus@users.sourceforge.net>
+
+"""
+irclib -- Internet Relay Chat (IRC) protocol client library.
+
+This library is intended to encapsulate the IRC protocol at a quite
+low level. It provides an event-driven IRC client framework. It has
+a fairly thorough support for the basic IRC protocol, CTCP, DCC chat,
+but DCC file transfers is not yet supported.
+
+In order to understand how to make an IRC client, I'm afraid you more
+or less must understand the IRC specifications. They are available
+here: [IRC specifications].
+
+The main features of the IRC client framework are:
+
+ * Abstraction of the IRC protocol.
+ * Handles multiple simultaneous IRC server connections.
+ * Handles server PONGing transparently.
+ * Messages to the IRC server are done by calling methods on an IRC
+ connection object.
+ * Messages from an IRC server triggers events, which can be caught
+ by event handlers.
+ * Reading from and writing to IRC server sockets are normally done
+ by an internal select() loop, but the select()ing may be done by
+ an external main loop.
+ * Functions can be registered to execute at specified times by the
+ event-loop.
+ * Decodes CTCP tagging correctly (hopefully); I haven't seen any
+ other IRC client implementation that handles the CTCP
+ specification subtilties.
+ * A kind of simple, single-server, object-oriented IRC client class
+ that dispatches events to instance methods is included.
+
+Current limitations:
+
+ * The IRC protocol shines through the abstraction a bit too much.
+ * Data is not written asynchronously to the server, i.e. the write()
+ may block if the TCP buffers are stuffed.
+ * There are no support for DCC file transfers.
+ * The author haven't even read RFC 2810, 2811, 2812 and 2813.
+ * Like most projects, documentation is lacking...
+
+.. [IRC specifications] http://www.irchelp.org/irchelp/rfc/
+"""
+
+import bisect
+import re
+import select
+import socket
+import string
+import time
+import types
+import ssl as ssl_mod
+import datetime
+
+try:
+ import pkg_resources
+ _pkg = pkg_resources.require('python-irclib')[0]
+ VERSION = tuple(int(res) for res in re.findall('\d+', _pkg.version))
+except Exception:
+ VERSION = ()
+
+DEBUG = False
+
+# TODO
+# ----
+# (maybe) thread safety
+# (maybe) color parser convenience functions
+# documentation (including all event types)
+# (maybe) add awareness of different types of ircds
+# send data asynchronously to the server (and DCC connections)
+# (maybe) automatically close unused, passive DCC connections after a while
+
+# NOTES
+# -----
+# connection.quit() only sends QUIT to the server.
+# ERROR from the server triggers the error event and the disconnect event.
+# dropping of the connection triggers the disconnect event.
+
+class IRCError(Exception):
+ """Represents an IRC exception."""
+ pass
+
+
+class IRC(object):
+ """Class that handles one or several IRC server connections.
+
+ When an IRC object has been instantiated, it can be used to create
+ Connection objects that represent the IRC connections. The
+ responsibility of the IRC object is to provide an event-driven
+ framework for the connections and to keep the connections alive.
+ It runs a select loop to poll each connection's TCP socket and
+ hands over the sockets with incoming data for processing by the
+ corresponding connection.
+
+ The methods of most interest for an IRC client writer are server,
+ add_global_handler, remove_global_handler, execute_at,
+ execute_delayed, process_once and process_forever.
+
+ Here is an example:
+
+ irc = irclib.IRC()
+ server = irc.server()
+ server.connect("irc.some.where", 6667, "my_nickname")
+ server.privmsg("a_nickname", "Hi there!")
+ irc.process_forever()
+
+ This will connect to the IRC server irc.some.where on port 6667
+ using the nickname my_nickname and send the message "Hi there!"
+ to the nickname a_nickname.
+ """
+
+ def __init__(self, fn_to_add_socket=None,
+ fn_to_remove_socket=None,
+ fn_to_add_timeout=None):
+ """Constructor for IRC objects.
+
+ Optional arguments are fn_to_add_socket, fn_to_remove_socket
+ and fn_to_add_timeout. The first two specify functions that
+ will be called with a socket object as argument when the IRC
+ object wants to be notified (or stop being notified) of data
+ coming on a new socket. When new data arrives, the method
+ process_data should be called. Similarly, fn_to_add_timeout
+ is called with a number of seconds (a floating point number)
+ as first argument when the IRC object wants to receive a
+ notification (by calling the process_timeout method). So, if
+ e.g. the argument is 42.17, the object wants the
+ process_timeout method to be called after 42 seconds and 170
+ milliseconds.
+
+ The three arguments mainly exist to be able to use an external
+ main loop (for example Tkinter's or PyGTK's main app loop)
+ instead of calling the process_forever method.
+
+ An alternative is to just call ServerConnection.process_once()
+ once in a while.
+ """
+
+ if fn_to_add_socket and fn_to_remove_socket:
+ self.fn_to_add_socket = fn_to_add_socket
+ self.fn_to_remove_socket = fn_to_remove_socket
+ else:
+ self.fn_to_add_socket = None
+ self.fn_to_remove_socket = None
+
+ self.fn_to_add_timeout = fn_to_add_timeout
+ self.connections = []
+ self.handlers = {}
+ self.delayed_commands = [] # list of DelayedCommands
+
+ self.add_global_handler("ping", _ping_ponger, -42)
+
+ def server(self):
+ """Creates and returns a ServerConnection object."""
+
+ c = ServerConnection(self)
+ self.connections.append(c)
+ return c
+
+ def process_data(self, sockets):
+ """Called when there is more data to read on connection sockets.
+
+ Arguments:
+
+ sockets -- A list of socket objects.
+
+ See documentation for IRC.__init__.
+ """
+ for s in sockets:
+ for c in self.connections:
+ if s == c._get_socket():
+ c.process_data()
+
+ def process_timeout(self):
+ """Called when a timeout notification is due.
+
+ See documentation for IRC.__init__.
+ """
+ while self.delayed_commands:
+ command = self.delayed_commands[0]
+ if not command.due():
+ break
+ command.function(*command.arguments)
+ if isinstance(command, PeriodicCommand):
+ self._schedule_command(command.next())
+ del self.delayed_commands[0]
+
+ def process_once(self, timeout=0):
+ """Process data from connections once.
+
+ Arguments:
+
+ timeout -- How long the select() call should wait if no
+ data is available.
+
+ This method should be called periodically to check and process
+ incoming data, if there are any. If that seems boring, look
+ at the process_forever method.
+ """
+ sockets = map(lambda x: x._get_socket(), self.connections)
+ sockets = filter(lambda x: x != None, sockets)
+ if sockets:
+ (i, o, e) = select.select(sockets, [], [], timeout)
+ self.process_data(i)
+ else:
+ time.sleep(timeout)
+ self.process_timeout()
+
+ def process_forever(self, timeout=0.2):
+ """Run an infinite loop, processing data from connections.
+
+ This method repeatedly calls process_once.
+
+ Arguments:
+
+ timeout -- Parameter to pass to process_once.
+ """
+ while 1:
+ self.process_once(timeout)
+
+ def disconnect_all(self, message=""):
+ """Disconnects all connections."""
+ for c in self.connections:
+ c.disconnect(message)
+
+ def add_global_handler(self, event, handler, priority=0):
+ """Adds a global handler function for a specific event type.
+
+ Arguments:
+
+ event -- Event type (a string). Check the values of the
+ numeric_events dictionary in irclib.py for possible event
+ types.
+
+ handler -- Callback function.
+
+ priority -- A number (the lower number, the higher priority).
+
+ The handler function is called whenever the specified event is
+ triggered in any of the connections. See documentation for
+ the Event class.
+
+ The handler functions are called in priority order (lowest
+ number is highest priority). If a handler function returns
+ "NO MORE", no more handlers will be called.
+ """
+ if not event in self.handlers:
+ self.handlers[event] = []
+ bisect.insort(self.handlers[event], ((priority, handler)))
+
+ def remove_global_handler(self, event, handler):
+ """Removes a global handler function.
+
+ Arguments:
+
+ event -- Event type (a string).
+ handler -- Callback function.
+
+ Returns 1 on success, otherwise 0.
+ """
+ if not event in self.handlers:
+ return 0
+ for h in self.handlers[event]:
+ if handler == h[1]:
+ self.handlers[event].remove(h)
+ return 1
+
+ def execute_at(self, at, function, arguments=()):
+ """Execute a function at a specified time.
+
+ Arguments:
+
+ at -- Execute at this time (standard "time_t" time).
+ function -- Function to call.
+ arguments -- Arguments to give the function.
+ """
+ command = DelayedCommand.at_time(at, function, arguments)
+ self._schedule_command(command)
+
+ def execute_delayed(self, delay, function, arguments=()):
+ """
+ Execute a function after a specified time.
+
+ delay -- How many seconds to wait.
+ function -- Function to call.
+ arguments -- Arguments to give the function.
+ """
+ command = DelayedCommand(delay, function, arguments)
+ self._schedule_command(command)
+
+ def execute_every(self, period, function, arguments=()):
+ """
+ Execute a function every 'period' seconds.
+
+ period -- How often to run (always waits this long for first).
+ function -- Function to call.
+ arguments -- Arguments to give the function.
+ """
+ command = PeriodicCommand(period, function, arguments)
+ self._schedule_command(command)
+
+ def _schedule_command(self, command):
+ bisect.insort(self.delayed_commands, command)
+ if self.fn_to_add_timeout:
+ self.fn_to_add_timeout(total_seconds(command.delay))
+
+ def dcc(self, dcctype="chat"):
+ """Creates and returns a DCCConnection object.
+
+ Arguments:
+
+ dcctype -- "chat" for DCC CHAT connections or "raw" for
+ DCC SEND (or other DCC types). If "chat",
+ incoming data will be split in newline-separated
+ chunks. If "raw", incoming data is not touched.
+ """
+ c = DCCConnection(self, dcctype)
+ self.connections.append(c)
+ return c
+
+ def _handle_event(self, connection, event):
+ """[Internal]"""
+ h = self.handlers
+ th = sorted(h.get("all_events", []) + h.get(event.eventtype(), []))
+ for handler in th:
+ if handler[1](connection, event) == "NO MORE":
+ return
+
+ def _remove_connection(self, connection):
+ """[Internal]"""
+ self.connections.remove(connection)
+ if self.fn_to_remove_socket:
+ self.fn_to_remove_socket(connection._get_socket())
+
+class DelayedCommand(datetime.datetime):
+ """
+ A command to be executed after some delay (seconds or timedelta).
+ """
+ def __new__(cls, delay, function, arguments):
+ if not isinstance(delay, datetime.timedelta):
+ delay = datetime.timedelta(seconds=delay)
+ at = datetime.datetime.utcnow() + delay
+ cmd = datetime.datetime.__new__(DelayedCommand, at.year,
+ at.month, at.day, at.hour, at.minute, at.second,
+ at.microsecond, at.tzinfo)
+ cmd.delay = delay
+ cmd.function = function
+ cmd.arguments = arguments
+ return cmd
+
+ def at_time(cls, at, function, arguments):
+ """
+ Construct a DelayedCommand to come due at `at`, where `at` may be
+ a datetime or timestamp.
+ """
+ if isinstance(at, int):
+ at = datetime.datetime.utcfromtimestamp(at)
+ delay = at - datetime.datetime.utcnow()
+ return cls(delay, function, arguments)
+ at_time = classmethod(at_time)
+
+ def due(self):
+ return datetime.datetime.utcnow() >= self
+
+class PeriodicCommand(DelayedCommand):
+ """
+ Like a deferred command, but expect this command to run every delay
+ seconds.
+ """
+ def next(self):
+ return PeriodicCommand(self.delay, self.function,
+ self.arguments)
+
+_rfc_1459_command_regexp = re.compile("^(:(?P<prefix>[^ ]+) +)?(?P<command>[^ ]+)( *(?P<argument> .+))?")
+
+class Connection(object):
+ """Base class for IRC connections.
+
+ Must be overridden.
+ """
+ def __init__(self, irclibobj):
+ self.irclibobj = irclibobj
+
+ def _get_socket():
+ raise IRCError("Not overridden")
+
+ ##############################
+ ### Convenience wrappers.
+
+ def execute_at(self, at, function, arguments=()):
+ self.irclibobj.execute_at(at, function, arguments)
+
+ def execute_delayed(self, delay, function, arguments=()):
+ self.irclibobj.execute_delayed(delay, function, arguments)
+
+ def execute_every(self, period, function, arguments=()):
+ self.irclibobj.execute_every(period, function, arguments)
+
+class ServerConnectionError(IRCError):
+ pass
+
+class ServerNotConnectedError(ServerConnectionError):
+ pass
+
+
+# Huh!? Crrrrazy EFNet doesn't follow the RFC: their ircd seems to
+# use \n as message separator! :P
+_linesep_regexp = re.compile("\r?\n")
+
+class ServerConnection(Connection):
+ """This class represents an IRC server connection.
+
+ ServerConnection objects are instantiated by calling the server
+ method on an IRC object.
+ """
+
+ def __init__(self, irclibobj):
+ super(ServerConnection, self).__init__(irclibobj)
+ self.connected = 0 # Not connected yet.
+ self.socket = None
+ self.ssl = None
+
+ def connect(self, server, port, nickname, password=None, username=None,
+ ircname=None, localaddress="", localport=0, ssl=False, ipv6=False):
+ """Connect/reconnect to a server.
+
+ Arguments:
+
+ server -- Server name.
+
+ port -- Port number.
+
+ nickname -- The nickname.
+
+ password -- Password (if any).
+
+ username -- The username.
+
+ ircname -- The IRC name ("realname").
+
+ localaddress -- Bind the connection to a specific local IP address.
+
+ localport -- Bind the connection to a specific local port.
+
+ ssl -- Enable support for ssl.
+
+ ipv6 -- Enable support for ipv6.
+
+ This function can be called to reconnect a closed connection.
+
+ Returns the ServerConnection object.
+ """
+ if self.connected:
+ self.disconnect("Changing servers")
+
+ self.previous_buffer = ""
+ self.handlers = {}
+ self.real_server_name = ""
+ self.real_nickname = nickname
+ self.server = server
+ self.port = port
+ self.nickname = nickname
+ self.username = username or nickname
+ self.ircname = ircname or nickname
+ self.password = password
+ self.localaddress = localaddress
+ self.localport = localport
+ self.localhost = socket.gethostname()
+ if ipv6:
+ self.socket = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
+ else:
+ self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ try:
+ self.socket.bind((self.localaddress, self.localport))
+ self.socket.connect((self.server, self.port))
+ if ssl:
+ self.ssl = ssl_mod.wrap_socket(self.socket)
+ except socket.error, x:
+ self.socket.close()
+ self.socket = None
+ raise ServerConnectionError("Couldn't connect to socket: %s" % x)
+ self.connected = 1
+ if self.irclibobj.fn_to_add_socket:
+ self.irclibobj.fn_to_add_socket(self.socket)
+
+ # Log on...
+ if self.password:
+ self.pass_(self.password)
+ self.nick(self.nickname)
+ self.user(self.username, self.ircname)
+ return self
+
+ def close(self):
+ """Close the connection.
+
+ This method closes the connection permanently; after it has
+ been called, the object is unusable.
+ """
+
+ self.disconnect("Closing object")
+ self.irclibobj._remove_connection(self)
+
+ def _get_socket(self):
+ """[Internal]"""
+ return self.socket
+
+ def get_server_name(self):
+ """Get the (real) server name.
+
+ This method returns the (real) server name, or, more
+ specifically, what the server calls itself.
+ """
+
+ if self.real_server_name:
+ return self.real_server_name
+ else:
+ return ""
+
+ def get_nickname(self):
+ """Get the (real) nick name.
+
+ This method returns the (real) nickname. The library keeps
+ track of nick changes, so it might not be the nick name that
+ was passed to the connect() method. """
+
+ return self.real_nickname
+
+ def process_data(self):
+ """[Internal]"""
+
+ try:
+ if self.ssl:
+ new_data = self.ssl.read(2 ** 14)
+ else:
+ new_data = self.socket.recv(2 ** 14)
+ except socket.error:
+ # The server hung up.
+ self.disconnect("Connection reset by peer")
+ return
+ if not new_data:
+ # Read nothing: connection must be down.
+ self.disconnect("Connection reset by peer")
+ return
+
+ lines = _linesep_regexp.split(self.previous_buffer + new_data)
+
+ # Save the last, unfinished line.
+ self.previous_buffer = lines.pop()
+
+ for line in lines:
+ if DEBUG:
+ print "FROM SERVER:", line
+
+ if not line:
+ continue
+
+ prefix = None
+ command = None
+ arguments = None
+ self._handle_event(Event("all_raw_messages",
+ self.get_server_name(),
+ None,
+ [line]))
+
+ m = _rfc_1459_command_regexp.match(line)
+ if m.group("prefix"):
+ prefix = m.group("prefix")
+ if not self.real_server_name:
+ self.real_server_name = prefix
+
+ if m.group("command"):
+ command = m.group("command").lower()
+
+ if m.group("argument"):
+ a = m.group("argument").split(" :", 1)
+ arguments = a[0].split()
+ if len(a) == 2:
+ arguments.append(a[1])
+
+ # Translate numerics into more readable strings.
+ if command in numeric_events:
+ command = numeric_events[command]
+
+ if command == "nick":
+ if nm_to_n(prefix) == self.real_nickname:
+ self.real_nickname = arguments[0]
+ elif command == "welcome":
+ # Record the nickname in case the client changed nick
+ # in a nicknameinuse callback.
+ self.real_nickname = arguments[0]
+
+ if command in ["privmsg", "notice"]:
+ target, message = arguments[0], arguments[1]
+ messages = _ctcp_dequote(message)
+
+ if command == "privmsg":
+ if is_channel(target):
+ command = "pubmsg"
+ else:
+ if is_channel(target):
+ command = "pubnotice"
+ else:
+ command = "privnotice"
+
+ for m in messages:
+ if type(m) is types.TupleType:
+ if command in ["privmsg", "pubmsg"]:
+ command = "ctcp"
+ else:
+ command = "ctcpreply"
+
+ m = list(m)
+ if DEBUG:
+ print "command: %s, source: %s, target: %s, arguments: %s" % (
+ command, prefix, target, m)
+ self._handle_event(Event(command, prefix, target, m))
+ if command == "ctcp" and m[0] == "ACTION":
+ self._handle_event(Event("action", prefix, target, m[1:]))
+ else:
+ if DEBUG:
+ print "command: %s, source: %s, target: %s, arguments: %s" % (
+ command, prefix, target, [m])
+ self._handle_event(Event(command, prefix, target, [m]))
+ else:
+ target = None
+
+ if command == "quit":
+ arguments = [arguments[0]]
+ elif command == "ping":
+ target = arguments[0]
+ else:
+ target = arguments[0]
+ arguments = arguments[1:]
+
+ if command == "mode":
+ if not is_channel(target):
+ command = "umode"
+
+ if DEBUG:
+ print "command: %s, source: %s, target: %s, arguments: %s" % (
+ command, prefix, target, arguments)
+ self._handle_event(Event(command, prefix, target, arguments))
+
+ def _handle_event(self, event):
+ """[Internal]"""
+ self.irclibobj._handle_event(self, event)
+ if event.eventtype() in self.handlers:
+ for fn in self.handlers[event.eventtype()]:
+ fn(self, event)
+
+ def is_connected(self):
+ """Return connection status.
+
+ Returns true if connected, otherwise false.
+ """
+ return self.connected
+
+ def add_global_handler(self, *args):
+ """Add global handler.
+
+ See documentation for IRC.add_global_handler.
+ """
+ self.irclibobj.add_global_handler(*args)
+
+ def remove_global_handler(self, *args):
+ """Remove global handler.
+
+ See documentation for IRC.remove_global_handler.
+ """
+ self.irclibobj.remove_global_handler(*args)
+
+ def action(self, target, action):
+ """Send a CTCP ACTION command."""
+ self.ctcp("ACTION", target, action)
+
+ def admin(self, server=""):
+ """Send an ADMIN command."""
+ self.send_raw(" ".join(["ADMIN", server]).strip())
+
+ def ctcp(self, ctcptype, target, parameter=""):
+ """Send a CTCP command."""
+ ctcptype = ctcptype.upper()
+ self.privmsg(target, "\001%s%s\001" % (ctcptype, parameter and (" " + parameter) or ""))
+
+ def ctcp_reply(self, target, parameter):
+ """Send a CTCP REPLY command."""
+ self.notice(target, "\001%s\001" % parameter)
+
+ def disconnect(self, message=""):
+ """Hang up the connection.
+
+ Arguments:
+
+ message -- Quit message.
+ """
+ if not self.connected:
+ return
+
+ self.connected = 0
+
+ self.quit(message)
+
+ try:
+ self.socket.close()
+ except socket.error:
+ pass
+ self.socket = None
+ self._handle_event(Event("disconnect", self.server, "", [message]))
+
+ def globops(self, text):
+ """Send a GLOBOPS command."""
+ self.send_raw("GLOBOPS :" + text)
+
+ def info(self, server=""):
+ """Send an INFO command."""
+ self.send_raw(" ".join(["INFO", server]).strip())
+
+ def invite(self, nick, channel):
+ """Send an INVITE command."""
+ self.send_raw(" ".join(["INVITE", nick, channel]).strip())
+
+ def ison(self, nicks):
+ """Send an ISON command.
+
+ Arguments:
+
+ nicks -- List of nicks.
+ """
+ self.send_raw("ISON " + " ".join(nicks))
+
+ def join(self, channel, key=""):
+ """Send a JOIN command."""
+ self.send_raw("JOIN %s%s" % (channel, (key and (" " + key))))
+
+ def kick(self, channel, nick, comment=""):
+ """Send a KICK command."""
+ self.send_raw("KICK %s %s%s" % (channel, nick, (comment and (" :" + comment))))
+
+ def links(self, remote_server="", server_mask=""):
+ """Send a LINKS command."""
+ command = "LINKS"
+ if remote_server:
+ command = command + " " + remote_server
+ if server_mask:
+ command = command + " " + server_mask
+ self.send_raw(command)
+
+ def list(self, channels=None, server=""):
+ """Send a LIST command."""
+ command = "LIST"
+ if channels:
+ command = command + " " + ",".join(channels)
+ if server:
+ command = command + " " + server
+ self.send_raw(command)
+
+ def lusers(self, server=""):
+ """Send a LUSERS command."""
+ self.send_raw("LUSERS" + (server and (" " + server)))
+
+ def mode(self, target, command):
+ """Send a MODE command."""
+ self.send_raw("MODE %s %s" % (target, command))
+
+ def motd(self, server=""):
+ """Send an MOTD command."""
+ self.send_raw("MOTD" + (server and (" " + server)))
+
+ def names(self, channels=None):
+ """Send a NAMES command."""
+ self.send_raw("NAMES" + (channels and (" " + ",".join(channels)) or ""))
+
+ def nick(self, newnick):
+ """Send a NICK command."""
+ self.send_raw("NICK " + newnick)
+
+ def notice(self, target, text):
+ """Send a NOTICE command."""
+ # Should limit len(text) here!
+ self.send_raw("NOTICE %s :%s" % (target, text))
+
+ def oper(self, nick, password):
+ """Send an OPER command."""
+ self.send_raw("OPER %s %s" % (nick, password))
+
+ def part(self, channels, message=""):
+ """Send a PART command."""
+ channels = always_iterable(channels)
+ cmd_parts = [
+ 'PART',
+ ','.join(channels),
+ ]
+ if message: cmd_parts.append(message)
+ self.send_raw(' '.join(cmd_parts))
+
+ def pass_(self, password):
+ """Send a PASS command."""
+ self.send_raw("PASS " + password)
+
+ def ping(self, target, target2=""):
+ """Send a PING command."""
+ self.send_raw("PING %s%s" % (target, target2 and (" " + target2)))
+
+ def pong(self, target, target2=""):
+ """Send a PONG command."""
+ self.send_raw("PONG %s%s" % (target, target2 and (" " + target2)))
+
+ def privmsg(self, target, text):
+ """Send a PRIVMSG command."""
+ # Should limit len(text) here!
+ self.send_raw("PRIVMSG %s :%s" % (target, text))
+
+ def privmsg_many(self, targets, text):
+ """Send a PRIVMSG command to multiple targets."""
+ # Should limit len(text) here!
+ self.send_raw("PRIVMSG %s :%s" % (",".join(targets), text))
+
+ def quit(self, message=""):
+ """Send a QUIT command."""
+ # Note that many IRC servers don't use your QUIT message
+ # unless you've been connected for at least 5 minutes!
+ self.send_raw("QUIT" + (message and (" :" + message)))
+
+ def send_raw(self, string):
+ """Send raw string to the server.
+
+ The string will be padded with appropriate CR LF.
+ """
+ if self.socket is None:
+ raise ServerNotConnectedError("Not connected.")
+ try:
+ if self.ssl:
+ self.ssl.write(string + "\r\n")
+ else:
+ self.socket.send(string + "\r\n")
+ if DEBUG:
+ print "TO SERVER:", string
+ except socket.error:
+ # Ouch!
+ self.disconnect("Connection reset by peer.")
+
+ def squit(self, server, comment=""):
+ """Send an SQUIT command."""
+ self.send_raw("SQUIT %s%s" % (server, comment and (" :" + comment)))
+
+ def stats(self, statstype, server=""):
+ """Send a STATS command."""
+ self.send_raw("STATS %s%s" % (statstype, server and (" " + server)))
+
+ def time(self, server=""):
+ """Send a TIME command."""
+ self.send_raw("TIME" + (server and (" " + server)))
+
+ def topic(self, channel, new_topic=None):
+ """Send a TOPIC command."""
+ if new_topic is None:
+ self.send_raw("TOPIC " + channel)
+ else:
+ self.send_raw("TOPIC %s :%s" % (channel, new_topic))
+
+ def trace(self, target=""):
+ """Send a TRACE command."""
+ self.send_raw("TRACE" + (target and (" " + target)))
+
+ def user(self, username, realname):
+ """Send a USER command."""
+ self.send_raw("USER %s 0 * :%s" % (username, realname))
+
+ def userhost(self, nicks):
+ """Send a USERHOST command."""
+ self.send_raw("USERHOST " + ",".join(nicks))
+
+ def users(self, server=""):
+ """Send a USERS command."""
+ self.send_raw("USERS" + (server and (" " + server)))
+
+ def version(self, server=""):
+ """Send a VERSION command."""
+ self.send_raw("VERSION" + (server and (" " + server)))
+
+ def wallops(self, text):
+ """Send a WALLOPS command."""
+ self.send_raw("WALLOPS :" + text)
+
+ def who(self, target="", op=""):
+ """Send a WHO command."""
+ self.send_raw("WHO%s%s" % (target and (" " + target), op and (" o")))
+
+ def whois(self, targets):
+ """Send a WHOIS command."""
+ self.send_raw("WHOIS " + ",".join(targets))
+
+ def whowas(self, nick, max="", server=""):
+ """Send a WHOWAS command."""
+ self.send_raw("WHOWAS %s%s%s" % (nick,
+ max and (" " + max),
+ server and (" " + server)))
+
+class DCCConnectionError(IRCError):
+ pass
+
+
+class DCCConnection(Connection):
+ """This class represents a DCC connection.
+
+ DCCConnection objects are instantiated by calling the dcc
+ method on an IRC object.
+ """
+ def __init__(self, irclibobj, dcctype):
+ super(DCCConnection, self).__init__(irclibobj)
+ self.connected = 0
+ self.passive = 0
+ self.dcctype = dcctype
+ self.peeraddress = None
+ self.peerport = None
+
+ def connect(self, address, port):
+ """Connect/reconnect to a DCC peer.
+
+ Arguments:
+ address -- Host/IP address of the peer.
+
+ port -- The port number to connect to.
+
+ Returns the DCCConnection object.
+ """
+ self.peeraddress = socket.gethostbyname(address)
+ self.peerport = port
+ self.socket = None
+ self.previous_buffer = ""
+ self.handlers = {}
+ self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ self.passive = 0
+ try:
+ self.socket.connect((self.peeraddress, self.peerport))
+ except socket.error, x:
+ raise DCCConnectionError("Couldn't connect to socket: %s" % x)
+ self.connected = 1
+ if self.irclibobj.fn_to_add_socket:
+ self.irclibobj.fn_to_add_socket(self.socket)
+ return self
+
+ def listen(self):
+ """Wait for a connection/reconnection from a DCC peer.
+
+ Returns the DCCConnection object.
+
+ The local IP address and port are available as
+ self.localaddress and self.localport. After connection from a
+ peer, the peer address and port are available as
+ self.peeraddress and self.peerport.
+ """
+ self.previous_buffer = ""
+ self.handlers = {}
+ self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ self.passive = 1
+ try:
+ self.socket.bind((socket.gethostbyname(socket.gethostname()), 0))
+ self.localaddress, self.localport = self.socket.getsockname()
+ self.socket.listen(10)
+ except socket.error, x:
+ raise DCCConnectionError("Couldn't bind socket: %s" % x)
+ return self
+
+ def disconnect(self, message=""):
+ """Hang up the connection and close the object.
+
+ Arguments:
+
+ message -- Quit message.
+ """
+ if not self.connected:
+ return
+
+ self.connected = 0
+ try:
+ self.socket.close()
+ except socket.error:
+ pass
+ self.socket = None
+ self.irclibobj._handle_event(
+ self,
+ Event("dcc_disconnect", self.peeraddress, "", [message]))
+ self.irclibobj._remove_connection(self)
+
+ def process_data(self):
+ """[Internal]"""
+
+ if self.passive and not self.connected:
+ conn, (self.peeraddress, self.peerport) = self.socket.accept()
+ self.socket.close()
+ self.socket = conn
+ self.connected = 1
+ if DEBUG:
+ print "DCC connection from %s:%d" % (
+ self.peeraddress, self.peerport)
+ self.irclibobj._handle_event(
+ self,
+ Event("dcc_connect", self.peeraddress, None, None))
+ return
+
+ try:
+ new_data = self.socket.recv(2 ** 14)
+ except socket.error:
+ # The server hung up.
+ self.disconnect("Connection reset by peer")
+ return
+ if not new_data:
+ # Read nothing: connection must be down.
+ self.disconnect("Connection reset by peer")
+ return
+
+ if self.dcctype == "chat":
+ # The specification says lines are terminated with LF, but
+ # it seems safer to handle CR LF terminations too.
+ chunks = _linesep_regexp.split(self.previous_buffer + new_data)
+
+ # Save the last, unfinished line.
+ self.previous_buffer = chunks[-1]
+ if len(self.previous_buffer) > 2 ** 14:
+ # Bad peer! Naughty peer!
+ self.disconnect()
+ return
+ chunks = chunks[:-1]
+ else:
+ chunks = [new_data]
+
+ command = "dccmsg"
+ prefix = self.peeraddress
+ target = None
+ for chunk in chunks:
+ if DEBUG:
+ print "FROM PEER:", chunk
+ arguments = [chunk]
+ if DEBUG:
+ print "command: %s, source: %s, target: %s, arguments: %s" % (
+ command, prefix, target, arguments)
+ self.irclibobj._handle_event(
+ self,
+ Event(command, prefix, target, arguments))
+
+ def _get_socket(self):
+ """[Internal]"""
+ return self.socket
+
+ def privmsg(self, string):
+ """Send data to DCC peer.
+
+ The string will be padded with appropriate LF if it's a DCC
+ CHAT session.
+ """
+ try:
+ self.socket.send(string)
+ if self.dcctype == "chat":
+ self.socket.send("\n")
+ if DEBUG:
+ print "TO PEER: %s\n" % string
+ except socket.error:
+ # Ouch!
+ self.disconnect("Connection reset by peer.")
+
+class SimpleIRCClient(object):
+ """A simple single-server IRC client class.
+
+ This is an example of an object-oriented wrapper of the IRC
+ framework. A real IRC client can be made by subclassing this
+ class and adding appropriate methods.
+
+ The method on_join will be called when a "join" event is created
+ (which is done when the server sends a JOIN messsage/command),
+ on_privmsg will be called for "privmsg" events, and so on. The
+ handler methods get two arguments: the connection object (same as
+ self.connection) and the event object.
+
+ Instance attributes that can be used by sub classes:
+
+ ircobj -- The IRC instance.
+
+ connection -- The ServerConnection instance.
+
+ dcc_connections -- A list of DCCConnection instances.
+ """
+ def __init__(self):
+ self.ircobj = IRC()
+ self.connection = self.ircobj.server()
+ self.dcc_connections = []
+ self.ircobj.add_global_handler("all_events", self._dispatcher, -10)
+ self.ircobj.add_global_handler("dcc_disconnect", self._dcc_disconnect, -10)
+
+ def _dispatcher(self, c, e):
+ """[Internal]"""
+ if DEBUG:
+ print("irclib.py:_dispatcher:%s" % e.eventtype())
+
+ m = "on_" + e.eventtype()
+ if hasattr(self, m):
+ getattr(self, m)(c, e)
+
+ def _dcc_disconnect(self, c, e):
+ self.dcc_connections.remove(c)
+
+ def connect(self, server, port, nickname, password=None, username=None,
+ ircname=None, localaddress="", localport=0, ssl=False, ipv6=False):
+ """Connect/reconnect to a server.
+
+ Arguments:
+
+ server -- Server name.
+
+ port -- Port number.
+
+ nickname -- The nickname.
+
+ password -- Password (if any).
+
+ username -- The username.
+
+ ircname -- The IRC name.
+
+ localaddress -- Bind the connection to a specific local IP address.
+
+ localport -- Bind the connection to a specific local port.
+
+ ssl -- Enable support for ssl.
+
+ ipv6 -- Enable support for ipv6.
+
+ This function can be called to reconnect a closed connection.
+ """
+ self.connection.connect(server, port, nickname,
+ password, username, ircname,
+ localaddress, localport, ssl, ipv6)
+
+ def dcc_connect(self, address, port, dcctype="chat"):
+ """Connect to a DCC peer.
+
+ Arguments:
+
+ address -- IP address of the peer.
+
+ port -- Port to connect to.
+
+ Returns a DCCConnection instance.
+ """
+ dcc = self.ircobj.dcc(dcctype)
+ self.dcc_connections.append(dcc)
+ dcc.connect(address, port)
+ return dcc
+
+ def dcc_listen(self, dcctype="chat"):
+ """Listen for connections from a DCC peer.
+
+ Returns a DCCConnection instance.
+ """
+ dcc = self.ircobj.dcc(dcctype)
+ self.dcc_connections.append(dcc)
+ dcc.listen()
+ return dcc
+
+ def start(self):
+ """Start the IRC client."""
+ self.ircobj.process_forever()
+
+
+class Event(object):
+ """Class representing an IRC event."""
+ def __init__(self, eventtype, source, target, arguments=None):
+ """Constructor of Event objects.
+
+ Arguments:
+
+ eventtype -- A string describing the event.
+
+ source -- The originator of the event (a nick mask or a server).
+
+ target -- The target of the event (a nick or a channel).
+
+ arguments -- Any event specific arguments.
+ """
+ self._eventtype = eventtype
+ self._source = source
+ self._target = target
+ if arguments:
+ self._arguments = arguments
+ else:
+ self._arguments = []
+
+ def eventtype(self):
+ """Get the event type."""
+ return self._eventtype
+
+ def source(self):
+ """Get the event source."""
+ return self._source
+
+ def target(self):
+ """Get the event target."""
+ return self._target
+
+ def arguments(self):
+ """Get the event arguments."""
+ return self._arguments
+
+_LOW_LEVEL_QUOTE = "\020"
+_CTCP_LEVEL_QUOTE = "\134"
+_CTCP_DELIMITER = "\001"
+
+_low_level_mapping = {
+ "0": "\000",
+ "n": "\n",
+ "r": "\r",
+ _LOW_LEVEL_QUOTE: _LOW_LEVEL_QUOTE
+}
+
+_low_level_regexp = re.compile(_LOW_LEVEL_QUOTE + "(.)")
+
+def mask_matches(nick, mask):
+ """Check if a nick matches a mask.
+
+ Returns true if the nick matches, otherwise false.
+ """
+ nick = irc_lower(nick)
+ mask = irc_lower(mask)
+ mask = mask.replace("\\", "\\\\")
+ for ch in ".$|[](){}+":
+ mask = mask.replace(ch, "\\" + ch)
+ mask = mask.replace("?", ".")
+ mask = mask.replace("*", ".*")
+ r = re.compile(mask, re.IGNORECASE)
+ return r.match(nick)
+
+_special = "-[]\\`^{}"
+nick_characters = string.ascii_letters + string.digits + _special
+
+def _ctcp_dequote(message):
+ """[Internal] Dequote a message according to CTCP specifications.
+
+ The function returns a list where each element can be either a
+ string (normal message) or a tuple of one or two strings (tagged
+ messages). If a tuple has only one element (ie is a singleton),
+ that element is the tag; otherwise the tuple has two elements: the
+ tag and the data.
+
+ Arguments:
+
+ message -- The message to be decoded.
+ """
+
+ def _low_level_replace(match_obj):
+ ch = match_obj.group(1)
+
+ # If low_level_mapping doesn't have the character as key, we
+ # should just return the character.
+ return _low_level_mapping.get(ch, ch)
+
+ if _LOW_LEVEL_QUOTE in message:
+ # Yup, there was a quote. Release the dequoter, man!
+ message = _low_level_regexp.sub(_low_level_replace, message)
+
+ if _CTCP_DELIMITER not in message:
+ return [message]
+ else:
+ # Split it into parts. (Does any IRC client actually *use*
+ # CTCP stacking like this?)
+ chunks = message.split(_CTCP_DELIMITER)
+
+ messages = []
+ i = 0
+ while i < len(chunks) - 1:
+ # Add message if it's non-empty.
+ if len(chunks[i]) > 0:
+ messages.append(chunks[i])
+
+ if i < len(chunks) - 2:
+ # Aye! CTCP tagged data ahead!
+ messages.append(tuple(chunks[i + 1].split(" ", 1)))
+
+ i = i + 2
+
+ if len(chunks) % 2 == 0:
+ # Hey, a lonely _CTCP_DELIMITER at the end! This means
+ # that the last chunk, including the delimiter, is a
+ # normal message! (This is according to the CTCP
+ # specification.)
+ messages.append(_CTCP_DELIMITER + chunks[-1])
+
+ return messages
+
+def is_channel(string):
+ """Check if a string is a channel name.
+
+ Returns true if the argument is a channel name, otherwise false.
+ """
+ return string and string[0] in "#&+!"
+
+def ip_numstr_to_quad(num):
+ """Convert an IP number as an integer given in ASCII
+ representation (e.g. '3232235521') to an IP address string
+ (e.g. '192.168.0.1')."""
+ n = long(num)
+ p = map(str, map(int, [n >> 24 & 0xFF, n >> 16 & 0xFF,
+ n >> 8 & 0xFF, n & 0xFF]))
+ return ".".join(p)
+
+def ip_quad_to_numstr(quad):
+ """Convert an IP address string (e.g. '192.168.0.1') to an IP
+ number as an integer given in ASCII representation
+ (e.g. '3232235521')."""
+ p = map(long, quad.split("."))
+ s = str((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3])
+ if s[-1] == "L":
+ s = s[:-1]
+ return s
+
+def nm_to_n(s):
+ """Get the nick part of a nickmask.
+
+ (The source of an Event is a nickmask.)
+ """
+ return s.split("!")[0]
+
+def nm_to_uh(s):
+ """Get the userhost part of a nickmask.
+
+ (The source of an Event is a nickmask.)
+ """
+ return s.split("!")[1]
+
+def nm_to_h(s):
+ """Get the host part of a nickmask.
+
+ (The source of an Event is a nickmask.)
+ """
+ return s.split("@")[1]
+
+def nm_to_u(s):
+ """Get the user part of a nickmask.
+
+ (The source of an Event is a nickmask.)
+ """
+ s = s.split("!")[1]
+ return s.split("@")[0]
+
+def parse_nick_modes(mode_string):
+ """Parse a nick mode string.
+
+ The function returns a list of lists with three members: sign,
+ mode and argument. The sign is "+" or "-". The argument is
+ always None.
+
+ Example:
+
+ >>> parse_nick_modes("+ab-c")
+ [['+', 'a', None], ['+', 'b', None], ['-', 'c', None]]
+ """
+
+ return _parse_modes(mode_string, "")
+
+def parse_channel_modes(mode_string):
+ """Parse a channel mode string.
+
+ The function returns a list of lists with three members: sign,
+ mode and argument. The sign is "+" or "-". The argument is
+ None if mode isn't one of "b", "k", "l", "v" or "o".
+
+ Example:
+
+ >>> parse_channel_modes("+ab-c foo")
+ [['+', 'a', None], ['+', 'b', 'foo'], ['-', 'c', None]]
+ """
+
+ return _parse_modes(mode_string, "bklvo")
+
+def _parse_modes(mode_string, unary_modes=""):
+ """[Internal]"""
+ modes = []
+ arg_count = 0
+
+ # State variable.
+ sign = ""
+
+ a = mode_string.split()
+ if len(a) == 0:
+ return []
+ else:
+ mode_part, args = a[0], a[1:]
+
+ if mode_part[0] not in "+-":
+ return []
+ for ch in mode_part:
+ if ch in "+-":
+ sign = ch
+ elif ch == " ":
+ pass
+ elif ch in unary_modes:
+ if len(args) >= arg_count + 1:
+ modes.append([sign, ch, args[arg_count]])
+ arg_count = arg_count + 1
+ else:
+ modes.append([sign, ch, None])
+ else:
+ modes.append([sign, ch, None])
+ return modes
+
+def _ping_ponger(connection, event):
+ """[Internal]"""
+ connection.pong(event.target())
+
+# Numeric table mostly stolen from the Perl IRC module (Net::IRC).
+numeric_events = {
+ "001": "welcome",
+ "002": "yourhost",
+ "003": "created",
+ "004": "myinfo",
+ "005": "featurelist", # XXX
+ "200": "tracelink",
+ "201": "traceconnecting",
+ "202": "tracehandshake",
+ "203": "traceunknown",
+ "204": "traceoperator",
+ "205": "traceuser",
+ "206": "traceserver",
+ "207": "traceservice",
+ "208": "tracenewtype",
+ "209": "traceclass",
+ "210": "tracereconnect",
+ "211": "statslinkinfo",
+ "212": "statscommands",
+ "213": "statscline",
+ "214": "statsnline",
+ "215": "statsiline",
+ "216": "statskline",
+ "217": "statsqline",
+ "218": "statsyline",
+ "219": "endofstats",
+ "221": "umodeis",
+ "231": "serviceinfo",
+ "232": "endofservices",
+ "233": "service",
+ "234": "servlist",
+ "235": "servlistend",
+ "241": "statslline",
+ "242": "statsuptime",
+ "243": "statsoline",
+ "244": "statshline",
+ "250": "luserconns",
+ "251": "luserclient",
+ "252": "luserop",
+ "253": "luserunknown",
+ "254": "luserchannels",
+ "255": "luserme",
+ "256": "adminme",
+ "257": "adminloc1",
+ "258": "adminloc2",
+ "259": "adminemail",
+ "261": "tracelog",
+ "262": "endoftrace",
+ "263": "tryagain",
+ "265": "n_local",
+ "266": "n_global",
+ "300": "none",
+ "301": "away",
+ "302": "userhost",
+ "303": "ison",
+ "305": "unaway",
+ "306": "nowaway",
+ "311": "whoisuser",
+ "312": "whoisserver",
+ "313": "whoisoperator",
+ "314": "whowasuser",
+ "315": "endofwho",
+ "316": "whoischanop",
+ "317": "whoisidle",
+ "318": "endofwhois",
+ "319": "whoischannels",
+ "321": "liststart",
+ "322": "list",
+ "323": "listend",
+ "324": "channelmodeis",
+ "329": "channelcreate",
+ "331": "notopic",
+ "332": "currenttopic",
+ "333": "topicinfo",
+ "341": "inviting",
+ "342": "summoning",
+ "346": "invitelist",
+ "347": "endofinvitelist",
+ "348": "exceptlist",
+ "349": "endofexceptlist",
+ "351": "version",
+ "352": "whoreply",
+ "353": "namreply",
+ "361": "killdone",
+ "362": "closing",
+ "363": "closeend",
+ "364": "links",
+ "365": "endoflinks",
+ "366": "endofnames",
+ "367": "banlist",
+ "368": "endofbanlist",
+ "369": "endofwhowas",
+ "371": "info",
+ "372": "motd",
+ "373": "infostart",
+ "374": "endofinfo",
+ "375": "motdstart",
+ "376": "endofmotd",
+ "377": "motd2", # 1997-10-16 -- tkil
+ "381": "youreoper",
+ "382": "rehashing",
+ "384": "myportis",
+ "391": "time",
+ "392": "usersstart",
+ "393": "users",
+ "394": "endofusers",
+ "395": "nousers",
+ "401": "nosuchnick",
+ "402": "nosuchserver",
+ "403": "nosuchchannel",
+ "404": "cannotsendtochan",
+ "405": "toomanychannels",
+ "406": "wasnosuchnick",
+ "407": "toomanytargets",
+ "409": "noorigin",
+ "411": "norecipient",
+ "412": "notexttosend",
+ "413": "notoplevel",
+ "414": "wildtoplevel",
+ "421": "unknowncommand",
+ "422": "nomotd",
+ "423": "noadmininfo",
+ "424": "fileerror",
+ "431": "nonicknamegiven",
+ "432": "erroneusnickname", # Thiss iz how its speld in thee RFC.
+ "433": "nicknameinuse",
+ "436": "nickcollision",
+ "437": "unavailresource", # "Nick temporally unavailable"
+ "441": "usernotinchannel",
+ "442": "notonchannel",
+ "443": "useronchannel",
+ "444": "nologin",
+ "445": "summondisabled",
+ "446": "usersdisabled",
+ "451": "notregistered",
+ "461": "needmoreparams",
+ "462": "alreadyregistered",
+ "463": "nopermforhost",
+ "464": "passwdmismatch",
+ "465": "yourebannedcreep", # I love this one...
+ "466": "youwillbebanned",
+ "467": "keyset",
+ "471": "channelisfull",
+ "472": "unknownmode",
+ "473": "inviteonlychan",
+ "474": "bannedfromchan",
+ "475": "badchannelkey",
+ "476": "badchanmask",
+ "477": "nochanmodes", # "Channel doesn't support modes"
+ "478": "banlistfull",
+ "481": "noprivileges",
+ "482": "chanoprivsneeded",
+ "483": "cantkillserver",
+ "484": "restricted", # Connection is restricted
+ "485": "uniqopprivsneeded",
+ "491": "nooperhost",
+ "492": "noservicehost",
+ "501": "umodeunknownflag",
+ "502": "usersdontmatch",
+}
+
+generated_events = [
+ # Generated events
+ "dcc_connect",
+ "dcc_disconnect",
+ "dccmsg",
+ "disconnect",
+ "ctcp",
+ "ctcpreply",
+]
+
+protocol_events = [
+ # IRC protocol events
+ "error",
+ "join",
+ "kick",
+ "mode",
+ "part",
+ "ping",
+ "privmsg",
+ "privnotice",
+ "pubmsg",
+ "pubnotice",
+ "quit",
+ "invite",
+ "pong",
+]
+
+all_events = generated_events + protocol_events + numeric_events.values()
+
+# from jaraco.util.itertools
+def always_iterable(item):
+ """
+ Given an object, always return an iterable. If the item is not
+ already iterable, return a tuple containing only the item.
+
+ >>> always_iterable([1,2,3])
+ [1, 2, 3]
+ >>> always_iterable('foo')
+ ('foo',)
+ >>> always_iterable(None)
+ (None,)
+ >>> always_iterable(xrange(10))
+ xrange(10)
+ """
+ if isinstance(item, basestring) or not hasattr(item, '__iter__'):
+ item = item,
+ return item
+
+# from jaraco.util.string
+class FoldedCase(str):
+ """
+ A case insensitive string class; behaves just like str
+ except compares equal when the only variation is case.
+ >>> s = FoldedCase('hello world')
+
+ >>> s == 'Hello World'
+ True
+
+ >>> 'Hello World' == s
+ True
+
+ >>> s.index('O')
+ 4
+
+ >>> s.split('O')
+ ['hell', ' w', 'rld']
+
+ >>> names = map(FoldedCase, ['GAMMA', 'alpha', 'Beta'])
+ >>> names.sort()
+ >>> names
+ ['alpha', 'Beta', 'GAMMA']
+ """
+ def __lt__(self, other):
+ return self.lower() < other.lower()
+
+ def __gt__(self, other):
+ return self.lower() > other.lower()
+
+ def __eq__(self, other):
+ return self.lower() == other.lower()
+
+ def __hash__(self):
+ return hash(self.lower())
+
+ # cache lower since it's likely to be called frequently.
+ def lower(self):
+ self._lower = super(FoldedCase, self).lower()
+ self.lower = lambda: self._lower
+ return self._lower
+
+ def index(self, sub):
+ return self.lower().index(sub.lower())
+
+ def split(self, splitter=' ', maxsplit=0):
+ pattern = re.compile(re.escape(splitter), re.I)
+ return pattern.split(self, maxsplit)
+
+class IRCFoldedCase(FoldedCase):
+ """
+ A version of FoldedCase that honors the IRC specification for lowercased
+ strings (RFC 1459).
+
+ >>> IRCFoldedCase('Foo^').lower()
+ 'foo~'
+ >>> IRCFoldedCase('[this]') == IRCFoldedCase('{THIS}')
+ True
+ """
+ translation = string.maketrans(
+ string.ascii_uppercase + r"[]\^",
+ string.ascii_lowercase + r"{}|~",
+ )
+
+ def lower(self):
+ return self.translate(self.translation)
+
+# for compatibility
+def irc_lower(str):
+ return IRCFoldedCase(str).lower()
+
+def total_seconds(td):
+ """
+ Python 2.7 adds a total_seconds method to timedelta objects.
+ See http://docs.python.org/library/datetime.html#datetime.timedelta.total_seconds
+ """
+ try:
+ result = td.total_seconds()
+ except AttributeError:
+ result = (td.microseconds + (td.seconds + td.days * 24 * 3600) * 10**6) / 10**6
+ return result
projects / irker.git / commitdiff