pesterchum/irc.py
2023-02-12 17:26:54 +01:00

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"""Provides classes and functions for communicating with an IRC server.
References for the IRC protocol:
- Original IRC protocol specification: https://www.rfc-editor.org/rfc/rfc1459
- Updated IRC Client specification: https://www.rfc-editor.org/rfc/rfc2812
- Modern IRC client protocol writeup: https://modern.ircdocs.horse
- IRCv3 protocol additions: https://ircv3.net/irc/
- Draft of metadata spec: https://gist.github.com/k4bek4be/92c2937cefd49990fbebd001faf2b237
Some code in this file may be based on the oyoyo IRC library,
the license notice included with oyoyo source files is indented here:
# Copyright (c) 2008 Duncan Fordyce
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
"""
import socket
import random
import logging
from ssl import SSLCertVerificationError
try:
from PyQt6 import QtCore, QtGui
except ImportError:
print("PyQt5 fallback (irc.py)")
from PyQt5 import QtCore, QtGui
from mood import Mood
from dataobjs import PesterProfile
from generic import PesterList
from version import _pcVersion
from scripts.irc_protocol import SendIRC, parse_irc_line
from scripts.ssl_context import get_ssl_context
from scripts.input_validation import is_valid_mood, is_valid_rgb_color
PchumLog = logging.getLogger("pchumLogger")
SERVICES = [
"nickserv",
"chanserv",
"memoserv",
"operserv",
"helpserv",
"hostserv",
"botserv",
]
class PesterIRC(QtCore.QThread):
"""Class for making a thread that manages the connection to server."""
def __init__(self, window, server: str, port: int, ssl: bool, verify_hostname=True):
QtCore.QThread.__init__(self)
self.mainwindow = window
self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.server = server # Server to connect to.
self.port = port # Port on server to connect to.
self.ssl = ssl # Whether to connect over SSL/TLS.
self.verify_hostname = (
verify_hostname # Whether to verify server hostname. (SSL-only)
)
self._send_irc = SendIRC()
self.unresponsive = False
self.registered_irc = False
self.metadata_supported = False
self.stop_irc = None
self._conn = None
self._end = False # Set to True when ending connection.
self.joined = False
self.channelnames = {}
self.channel_list = []
self.channel_field = None
self.commands = {
"001": self._welcome,
"005": self._featurelist,
"221": self._umodeis,
"321": self._liststart,
"322": self._list,
"323": self._listend,
"324": self._channelmodeis,
"353": self._namreply,
"366": self._endofnames,
"432": self._erroneusnickname,
"433": self._nicknameinuse,
"436": self._nickcollision,
"448": self._forbiddenchannel, # non-standard
"473": self._inviteonlychan,
"761": self._keyvalue, # 7XX is ircv3 deprecated metadata spec
"766": self._nomatchingkey,
"768": self._keynotset,
"769": self._keynopermission,
"770": self._metadatasubok,
"error": self._error,
"join": self._join,
"kick": self._kick,
"mode": self._mode,
"part": self._part,
"ping": self._ping,
"privmsg": self._privmsg,
"notice": self._notice,
"quit": self._quit,
"invite": self._invite,
"nick": self._nick, # We can get svsnicked
"metadata": self._metadata, # Metadata specification
"tagmsg": self._tagmsg, # IRCv3 message tags extension
"cap": self._cap, # IRCv3 Client Capability Negotiation
}
def run(self):
"""Implements the main loop for the thread.
This function reimplements QThread::run() and is ran after self.irc.start()
is called on the main thread. Returning from this method ends the thread."""
try:
self.irc_connect()
except OSError as socket_exception:
self.stop_irc = socket_exception
return
while True:
res = True
try:
PchumLog.debug("update_irc()")
self.mainwindow.sincerecv = 0
res = self.update_irc()
except socket.timeout as timeout:
PchumLog.debug("timeout in thread %s", self)
self._close()
self.stop_irc = f"{type(timeout)}, {timeout}"
return
except (OSError, IndexError, ValueError) as exception:
self.stop_irc = f"{type(exception)}, {exception}"
PchumLog.debug("Socket error, exiting thread.")
return
else:
if not res:
PchumLog.debug("False Yield: %s, returning", res)
return
def _connect(self, verify_hostname=True):
"""Initiates the connection to the server set in self.server:self.port
self.ssl decides whether the connection uses ssl.
Certificate validation when using SSL/TLS may be disabled by
passing the 'verify_hostname' parameter. The user is asked if they
want to disable it if this functions raises a certificate validation error,
in which case the function may be called again with 'verify_hostname'."""
PchumLog.info("Connecting to %s:%s", self.server, self.port)
# Open connection
plaintext_socket = socket.create_connection((self.server, self.port))
if self.ssl:
# Upgrade connection to use SSL/TLS if enabled
context = get_ssl_context()
context.check_hostname = verify_hostname
self.socket = context.wrap_socket(
plaintext_socket, server_hostname=self.server
)
else:
# SSL/TLS is disabled, connection is plaintext
self.socket = plaintext_socket
self.socket.settimeout(90)
self._send_irc.socket = self.socket
self._send_irc.nick(self.mainwindow.profile().handle)
self._send_irc.user("pcc31", "pcc31")
def _conn_generator(self):
"""Returns a generator object."""
try:
buffer = b""
while not self._end:
try:
buffer += self.socket.recv(1024)
except OSError as e:
PchumLog.warning("conn_generator exception %s in %s", e, self)
if self._end:
break
raise e
else:
if self._end:
break
split_buffer = buffer.split(b"\r\n")
buffer = b""
if split_buffer[-1]:
# Incomplete line, add it back to the buffer.
buffer = split_buffer.pop()
for line in split_buffer:
line = line.decode(encoding="utf-8", errors="replace")
tags, prefix, command, args = parse_irc_line(line)
if command:
# Only need tags with tagmsg
if command.casefold() == "tagmsg":
self._run_command(command, prefix, tags, *args)
else:
self._run_command(command, prefix, *args)
yield True
except OSError as socket_exception:
PchumLog.warning(
"OSError raised in _conn, closing socket. (%s)", socket_exception
)
self._close()
raise socket_exception
except Exception as exception:
PchumLog.exception("Non-socket exception in _conn.")
raise exception
else:
PchumLog.debug("Ending _conn while loop, end is %s.", self._end)
self._close()
yield False
def _run_command(self, command, *args):
"""Finds and runs a command if it has a matching function in the self.commands dict."""
PchumLog.debug("_run_command %s(%s)", command, args)
if command in self.commands:
command_function = self.commands[command]
else:
PchumLog.debug("No matching function for command: %s(%s)", command, args)
return
try:
command_function(*args)
except TypeError:
PchumLog.exception(
"Failed to pass command, did the server pass an unsupported paramater?"
)
except Exception:
PchumLog.exception("Exception while parsing command.")
def _close(self):
"""Kill the socket 'with extreme prejudice'."""
if self.socket:
PchumLog.info("_close() was called, shutting down socket.")
self._end = True
try:
self.socket.shutdown(socket.SHUT_RDWR)
except OSError as e:
PchumLog.info("Error while shutting down socket, already broken? %s", e)
try:
self.socket.close()
except OSError as e:
PchumLog.info("Error while closing socket, already broken? %s", e)
def irc_connect(self):
"""Try to connect and signal for connect-anyway prompt on cert fail."""
try:
self._connect(self.verify_hostname)
except SSLCertVerificationError as e:
# Ask if users wants to connect anyway
self.askToConnect.emit(e)
raise e
self._conn = self._conn_generator()
def set_connection_broken(self):
"""Called when the connection is broken."""
PchumLog.critical("set_connection_broken() got called, disconnecting.")
self.disconnectIRC()
@QtCore.pyqtSlot()
def update_irc(self):
"""Get a silly scrunkler from the generator!!"""
try:
res = next(self._conn)
except socket.timeout as socket_exception:
if self.registered_irc:
return True
raise socket_exception
except StopIteration:
self._conn = self.conn_generator()
return True
else:
return res
@QtCore.pyqtSlot(PesterProfile)
def get_mood(self, *chums):
"""Get mood via metadata if supported"""
# Get via metadata or via legacy method
if self.metadata_supported:
# Metadata
for chum in chums:
try:
self._send_irc.metadata(chum.handle, "get", "mood")
except OSError as e:
PchumLog.warning(e)
self.set_connection_broken()
else:
# Legacy
PchumLog.warning(
"Server doesn't seem to support metadata, using legacy GETMOOD."
)
chumglub = "GETMOOD "
for chum in chums:
if len(chumglub + chum.handle) >= 350:
try:
self._send_irc.privmsg("#pesterchum", chumglub)
except OSError as e:
PchumLog.warning(e)
self.set_connection_broken()
chumglub = "GETMOOD "
# No point in GETMOOD-ing services
if chum.handle.casefold() not in SERVICES:
chumglub += chum.handle
if chumglub != "GETMOOD ":
try:
self._send_irc.privmsg("#pesterchum", chumglub)
except OSError as e:
PchumLog.warning(e)
self.set_connection_broken()
@QtCore.pyqtSlot(PesterList)
def get_moods(self, chums):
"""Get mood, slot is called from main thread."""
self.get_mood(*chums)
@QtCore.pyqtSlot(str, str)
def send_notice(self, text, handle):
"""Send notice, slot is called from main thread."""
self._send_irc.notice(handle, text)
@QtCore.pyqtSlot(str, str)
def send_message(self, text, handle):
"""......sends a message? this is a tad silly;;;"""
textl = [text]
def splittext(l):
if len(l[0]) > 450:
space = l[0].rfind(" ", 0, 430)
if space == -1:
space = 450
elif l[0][space + 1 : space + 5] == "</c>":
space = space + 4
a = l[0][0 : space + 1]
b = l[0][space + 1 :]
if a.count("<c") > a.count("</c>"):
# oh god ctags will break!! D=
hanging = []
usedends = []
c = a.rfind("<c")
while c != -1:
d = a.find("</c>", c)
while d in usedends:
d = a.find("</c>", d + 1)
if d != -1:
usedends.append(d)
else:
f = a.find(">", c) + 1
hanging.append(a[c:f])
c = a.rfind("<c", 0, c)
# end all ctags in first part
for _ in range(a.count("<c") - a.count("</c>")):
a = a + "</c>"
# start them up again in the second part
for c in hanging:
b = c + b
if b: # len > 0
return [a] + splittext([b])
return [a]
return l
textl = splittext(textl)
for t in textl:
self._send_irc.privmsg(handle, t)
@QtCore.pyqtSlot(str, str)
def send_ctcp(self, handle, text):
"""Send CTCP message, slot is called from main thread."""
self._send_irc.ctcp(handle, text)
@QtCore.pyqtSlot(str, bool)
def start_convo(self, handle, initiated):
"""Send convo begin message and color, slot is called from main thread."""
self._send_irc.privmsg(handle, f"COLOR >{self.mainwindow.profile().colorcmd()}")
if initiated:
self._send_irc.privmsg(handle, "PESTERCHUM:BEGIN")
@QtCore.pyqtSlot(str)
def end_convo(self, handle):
"""Send convo cease message, slot is called from main thread."""
self._send_irc.privmsg(handle, "PESTERCHUM:CEASE")
@QtCore.pyqtSlot()
def update_profile(self):
"""....update profile? this shouldn't be a thing."""
self._send_irc.nick(self.mainwindow.profile().handle)
self.mainwindow.closeConversations(True)
self.mainwindow.doAutoIdentify()
self.mainwindow.autoJoinDone = False
self.mainwindow.doAutoJoins()
self.updateMood()
@QtCore.pyqtSlot()
def update_mood(self):
"""Update and send mood, slot is called from main thread."""
mood = self.mainwindow.profile().mood.value_str()
# Moods via metadata
self._send_irc.metadata("*", "set", "mood", mood)
# Backwards compatibility
self._send_irc.privmsg("#pesterchum", f"MOOD >{mood}")
@QtCore.pyqtSlot()
def update_color(self):
"""Update and send color, slot is called from main thread."""
# Update color metadata field
color = self.mainwindow.profile().color
self._send_irc.metadata("*", "set", "color", str(color.name()))
# Send color messages
for convo in list(self.mainwindow.convos.keys()):
self._send_irc.privmsg(
convo,
f"COLOR >{self.mainwindow.profile().colorcmd()}",
)
@QtCore.pyqtSlot(str)
def blocked_chum(self, handle):
"""Send block message, slot is called from main thread."""
self._send_irc.privmsg(handle, "PESTERCHUM:BLOCK")
@QtCore.pyqtSlot(str)
def unblocked_chum(self, handle):
"""Send unblock message, slot is called from main thread."""
self._send_irc.privmsg(handle, "PESTERCHUM:UNBLOCK")
@QtCore.pyqtSlot(str)
def request_names(self, channel):
"""Send NAMES to request channel members, slot is called from main thread."""
self._send_irc.names(channel)
@QtCore.pyqtSlot()
def request_channel_list(self):
"""Send LIST to request list of channels, slot is called from main thread."""
self._send_irc.list()
@QtCore.pyqtSlot(str)
def join_channel(self, channel):
"""Send JOIN and MODE to join channel and get modes, slot is called from main thread."""
self._send_irc.join(channel)
self._send_irc.mode(channel)
@QtCore.pyqtSlot(str)
def left_channel(self, channel):
"""Send PART to leave channel, slot is called from main thread."""
self._send_irc.part(channel)
@QtCore.pyqtSlot(str, str, str)
def kick_user(self, channel, user, reason=""):
"""Send KICK message to kick user from channel, slot is called from main thread."""
self._send_irc.kick(channel, user, reason)
@QtCore.pyqtSlot(str, str, str)
def set_channel_mode(self, channel, mode, command):
"""Send MODE to set channel mode, slot is called from main thread."""
self._send_irc.mode(channel, mode, command)
@QtCore.pyqtSlot(str)
def channel_names(self, channel):
"""Send block message, slot is called from main thread."""
self._send_irc.names(channel)
@QtCore.pyqtSlot(str, str)
def invite_chum(self, handle, channel):
"""Send INVITE message to invite someone to a channel, slot is called from main thread."""
self._send_irc.invite(handle, channel)
@QtCore.pyqtSlot()
def ping_server(self):
"""Send PING to server to verify connectivity, slot is called from main thread."""
self._send_irc.ping("B33")
@QtCore.pyqtSlot(bool)
def set_away(self, away=True):
"""Send AWAY to update away status, slot is called from main thread."""
if away:
self.away("Idle")
else:
self.away()
@QtCore.pyqtSlot(str, str)
def kill_some_quirks(self, channel, handle):
"""Send NOQUIRKS ctcp message, disables quirks. Slot is called from main thread."""
self._send_irc.ctcp(channel, "NOQUIRKS", handle)
@QtCore.pyqtSlot()
def disconnect_irc(self):
"""Send QUIT and close connection, slot is called from main thread."""
self._send_irc.quit(f"{_pcVersion} <3")
self._end = True
self._close()
def _notice(self, nick, chan, msg):
"""Standard IRC 'NOTICE' message, primarily used for automated replies from services."""
handle = nick[0 : nick.find("!")]
PchumLog.info('---> recv "NOTICE %s :%s"', handle, msg)
if (
handle == "ChanServ"
and chan == self.mainwindow.profile().handle
and msg[0:2] == "[#"
):
self.memoReceived.emit(msg[1 : msg.index("]")], handle, msg)
else:
self.noticeReceived.emit(handle, msg)
def _metadata(self, _target, nick, key, _visibility, value):
"""METADATA DRAFT metadata message from server.
The format of the METADATA server notication is:
METADATA <Target> <Key> <Visibility> <Value>
"""
if key.casefold() == "mood":
if is_valid_mood(value[0]):
mood = Mood(int(value[0]))
else:
PchumLog.warning(
"Mood index '%s' from '%s' is not valid.", value[0], nick
)
mood = Mood(0)
self.moodUpdated.emit(nick, mood)
elif key.casefold() == "color":
if QtGui.QColor.isValidColorName(value):
color = QtGui.QColor.fromString(value)
else:
color = QtGui.QColor(0, 0, 0)
self.colorUpdated.emit(nick, color)
def _tagmsg(self, prefix, tags, *args):
"""IRCv3 'TAGMSG' message/command, contains a tag without a command.
For reference see:
https://ircv3.net/specs/extensions/message-tags.html#the-tagmsg-tag-only-message
"""
PchumLog.info("TAGMSG: %s %s %s", prefix, tags, args)
message_tags = tags[1:].split(";")
for tag in message_tags:
if tag.startswith("+pesterchum"):
# Pesterchum tag
try:
key, value = tag.split("=")
except ValueError:
return
PchumLog.info("Pesterchum tag: %s=%s", key, value)
# PESTERCHUM: syntax check
if value in [
"BEGIN",
"BLOCK",
"CEASE",
"BLOCK",
"BLOCKED",
"UNBLOCK",
"IDLE",
"ME",
]:
# Process like it's a PESTERCHUM: PRIVMSG
msg = "PESTERCHUM:" + value
self._privmsg(prefix, args[0], msg)
elif value.startswith("COLOR>"):
# Process like it's a COLOR >0,0,0 PRIVMSG
msg = value.replace(">", " >")
self._privmsg(prefix, args[0], msg)
elif value.startswith("TIME>"):
# Process like it's a PESTERCHUM:TIME> PRIVMSG
msg = "PESTERCHUM:" + value
self._privmsg(prefix, args[0], msg)
else:
# Invalid syntax
PchumLog.warning("TAGMSG with invalid syntax.")
def _ping(self, _prefix, token):
"""'PING' command from server, we respond with PONG and a matching token."""
self._send_irc.pong(token)
def _error(self, *params):
"""'ERROR' message from server, the server is terminating our connection."""
self.stop_irc = " ".join(params).strip()
self.disconnectIRC()
def __ctcp(self, nick: str, chan: str, msg: str):
"""Client-to-client protocol handling.
Called by _privmsg. CTCP messages are PRIVMSG messages wrapped in '\x01' characters.
"""
msg = msg.strip("\x01") # We already know this is a CTCP message.
handle = nick[0 : nick.find("!")]
# ACTION, IRC /me (The CTCP kind)
if msg.startswith("ACTION "):
self._privmsg(nick, chan, f"/me {msg[7:]}")
# VERSION, return version.
elif msg.startswith("VERSION"):
self._send_irc.ctcp_reply(handle, "VERSION", f"Pesterchum {_pcVersion}")
# CLIENTINFO, return supported CTCP commands.
elif msg.startswith("CLIENTINFO"):
self._send_irc.ctcp_reply(
handle,
"CLIENTINFO",
"ACTION VERSION CLIENTINFO PING SOURCE NOQUIRKS",
)
# PING, return pong.
elif msg.startswith("PING"):
self._send_irc.ctcp_reply(handle, "PING", msg[4:])
# SOURCE, return source code link.
elif msg.startswith("SOURCE"):
self._send_irc.ctcp_reply(
handle,
"SOURCE",
"https://github.com/Dpeta/pesterchum-alt-servers",
)
# ???
else:
PchumLog.warning("Unknown CTCP command '%s' from %s to %s", msg, nick, chan)
def _privmsg(self, nick: str, chan: str, msg: str):
"""'PRIVMSG' message from server, the standard message."""
if not msg: # Length 0
return
handle = nick[0 : nick.find("!")]
chan = (
chan.lower()
) # Channel capitalization not guarenteed, casefold() too aggressive.
# CTCP, indicated by a message wrapped in '\x01' characters.
# Only checking for the first character is recommended by the protocol.
if msg[0] == "\x01":
self.__ctcp(nick, chan, msg)
return
if chan.startswith("#"):
# PRIVMSG to chnnale
if chan == "#pesterchum":
# follow instructions
if msg.startswith("MOOD >"):
if is_valid_mood(msg[6:]):
mood = Mood(int(msg[6:]))
else:
PchumLog.warning(
"Mood index '%s' from '%s' is not valid.", msg[6:], handle
)
mood = Mood(0)
self.moodUpdated.emit(handle, mood)
elif msg.startswith("GETMOOD"):
mychumhandle = self.mainwindow.profile().handle
if mychumhandle in msg:
mymood = self.mainwindow.profile().mood.value_str()
self._send_irc.privmsg("#pesterchum", f"MOOD >{mymood}")
else:
if msg.startswith("PESTERCHUM:TIME>"):
self.timeCommand.emit(chan, handle, msg[16:])
else:
self.memoReceived.emit(chan, handle, msg)
else:
# Direct person-to-person PRIVMSG messages
if msg.startswith("COLOR >"):
if is_valid_rgb_color(msg[7:]):
colors = msg[7:].split(",")
colors = [int(d) for d in colors]
color = QtGui.QColor(*colors)
elif QtGui.QColor.isValidColorName(msg[7:]):
color = QtGui.QColor.fromString(msg[7:])
else:
color = QtGui.QColor(0, 0, 0)
self.colorUpdated.emit(handle, color)
else:
self.messageReceived.emit(handle, msg)
def _quit(self, nick, reason):
"""QUIT message from server, a client has quit the server."""
handle = nick[0 : nick.find("!")]
PchumLog.info('---> recv "QUIT %s: %s"', handle, reason)
if handle == self.mainwindow.randhandler.randNick:
self.mainwindow.randhandler.setRunning(False)
server = self.mainwindow.config.server()
baseserver = server[server.rfind(".", 0, server.rfind(".")) :]
if reason.count(baseserver) == 2:
self.userPresentUpdate.emit(handle, "", "netsplit")
else:
self.userPresentUpdate.emit(handle, "", "quit")
self.moodUpdated.emit(handle, Mood("offline"))
def _kick(self, opnick, channel, handle, reason):
"""'KICK' message from server, someone got kicked from a channel."""
op = opnick[0 : opnick.find("!")]
self.userPresentUpdate.emit(handle, channel, f"kick:{op}:{reason}")
# ok i shouldnt be overloading that but am lazy
def _part(self, nick, channel, _reason="nanchos"):
"""'PART' message from server, someone left a channel."""
handle = nick[0 : nick.find("!")]
PchumLog.info('---> recv "PART %s: %s"', handle, channel)
self.userPresentUpdate.emit(handle, channel, "left")
if channel == "#pesterchum":
self.moodUpdated.emit(handle, Mood("offline"))
def _join(self, nick, channel):
"""'JOIN' message from server, someone joined a channel."""
handle = nick[0 : nick.find("!")]
PchumLog.info('---> recv "JOIN %s: %s"', handle, channel)
self.userPresentUpdate.emit(handle, channel, "join")
if channel == "#pesterchum":
if handle == self.mainwindow.randhandler.randNick:
self.mainwindow.randhandler.setRunning(True)
self.moodUpdated.emit(handle, Mood("chummy"))
def _mode(self, op, channel, mode, *handles):
"""'MODE' message from server, a user or a channel's mode changed.
This and the functions it calls to in the main thread seem pretty broken,
modes that aren't internally tracked aren't updated correctly."""
if len(handles) <= 0:
handles = [""]
opnick = op[0 : op.find("!")]
PchumLog.debug("opnick=" + opnick)
self.modesUpdated.emit(channel, mode)
# Channel section
# Okay so, as I understand it channel modes will always be applied to a channel even if the commands also sets a mode to a user.
# So "MODE #channel +ro handleHandle" will set +r to channel #channel as well as set +o to handleHandle
# Therefore the bellow method causes a crash if both user and channel mode are being set in one command.
# if op == channel or channel == self.parent.mainwindow.profile().handle:
# modes = list(self.parent.mainwindow.modes)
# if modes and modes[0] == "+": modes = modes[1:]
# if mode[0] == "+":
# for m in mode[1:]:
# if m not in modes:
# modes.extend(m)
# elif mode[0] == "-":
# for i in mode[1:]:
# try:
# modes.remove(i)
# except ValueError:
# pass
# modes.sort()
# self.parent.mainwindow.modes = "+" + "".join(modes)
# EXPIRIMENTAL FIX
# No clue how stable this is but since it doesn't seem to cause a crash it's probably an improvement.
# This might be clunky with non-unrealircd IRC servers
channel_mode = ""
unrealircd_channel_modes = "cCdfGHikKLlmMNnOPpQRrsSTtVzZ"
if any(md in mode for md in unrealircd_channel_modes):
PchumLog.debug("Channel mode in string.")
modes = list(self.mainwindow.modes)
for md in unrealircd_channel_modes:
if mode.find(md) != -1: # -1 means not found
PchumLog.debug("md=" + md)
if mode[0] == "+":
modes.extend(md)
channel_mode = "+" + md
elif mode[0] == "-":
try:
modes.remove(md)
channel_mode = "-" + md
except ValueError:
PchumLog.warning(
"Can't remove channel mode that isn't set."
)
self.userPresentUpdate.emit(
"", channel, channel_mode + ":%s" % (op)
)
PchumLog.debug("pre-mode=" + str(mode))
mode = mode.replace(md, "")
PchumLog.debug("post-mode=" + str(mode))
modes.sort()
self.mainwindow.modes = "+" + "".join(modes)
modes = []
cur = "+"
for l in mode:
if l in ["+", "-"]:
cur = l
else:
modes.append("{}{}".format(cur, l))
for (i, m) in enumerate(modes):
# Server-set usermodes don't need to be passed.
if (handles == [""]) & (("x" in m) | ("z" in m) | ("o" in m)) != True:
try:
self.userPresentUpdate.emit(handles[i], channel, m + ":%s" % (op))
except IndexError as e:
PchumLog.exception("modeSetIndexError: %s" % e)
# print("i = " + i)
# print("m = " + m)
# self.parent.userPresentUpdate.emit(handles[i], channel, m+":%s" % (op))
# self.parent.userPresentUpdate.emit(handles[i], channel, m+":%s" % (op))
# Passing an empty handle here might cause a crash.
# except IndexError:
# self.parent.userPresentUpdate.emit("", channel, m+":%s" % (op))
def _invite(self, sender, _you, channel):
"""'INVITE' message from server, someone invited us to a channel.
Pizza party everyone invited!!!"""
handle = sender.split("!")[0]
self.inviteReceived.emit(handle, channel)
def _nick(self, oldnick, newnick, _hopcount=0):
"""'NICK' message from server, signifies a nick change.
Is send when our or someone else's nick got changed willingly or unwillingly."""
PchumLog.info(oldnick, newnick)
# svsnick
if oldnick == self.mainwindow.profile().handle:
# Server changed our handle, svsnick?
self.getSvsnickedOn.emit(oldnick, newnick)
# etc.
oldhandle = oldnick[0 : oldnick.find("!")]
if self.mainwindow.profile().handle in [newnick, oldhandle]:
self.myHandleChanged.emit(newnick)
newchum = PesterProfile(newnick, chumdb=self.mainwindow.chumdb)
self.moodUpdated.emit(oldhandle, Mood("offline"))
self.userPresentUpdate.emit(f"{oldhandle}:{newnick}", "", "nick")
if newnick in self.mainwindow.chumList.chums:
self.get_mood(newchum)
if oldhandle == self.mainwindow.randhandler.randNick:
self.mainwindow.randhandler.setRunning(False)
elif newnick == self.mainwindow.randhandler.randNick:
self.mainwindow.randhandler.setRunning(True)
def _welcome(self, _server, _nick, _msg):
"""Numeric reply 001 RPL_WELCOME, send when we've connected to the server."""
self.registered_irc = (
True # Registered as in, the server has accepted our nick & user.
)
self.connected.emit() # Alert main thread that we've connected.
profile = self.mainwindow.profile()
if not self.mainwindow.config.lowBandwidth():
# Negotiate capabilities
self._send_irc.cap("REQ", "message-tags")
self._send_irc.cap(
"REQ", "draft/metadata-notify-2"
) # <--- Not required in the unreal5 module implementation
self._send_irc.cap("REQ", "pesterchum-tag") # <--- Currently not using this
self._send_irc.join("#pesterchum")
# Get mood
mood = profile.mood.value_str()
# Moods via metadata
self._send_irc.metadata("*", "sub", "mood")
self._send_irc.metadata("*", "set", "mood", mood)
# Color via metadata
self._send_irc.metadata("*", "sub", "color")
self._send_irc.metadata("*", "set", "color", profile.color.name())
# Backwards compatible moods
self._send_irc.privmsg("#pesterchum", f"MOOD >{mood}")
def _featurelist(self, _target, _handle, *params):
"""Numerical reply 005 RPL_ISUPPORT to communicate supported server features.
Not in the original specification.
Metadata support could be confirmed via CAP ACK/CAP NEK.
"""
features = params[:-1]
PchumLog.info("Server _featurelist: %s", features)
for feature in features:
if feature.casefold().startswith("metadata"):
PchumLog.info("Server supports metadata.")
self.metadata_supported = True
def _cap(self, server, nick, subcommand, tag):
"""IRCv3 capabilities command from server.
See: https://ircv3.net/specs/extensions/capability-negotiation
"""
PchumLog.info("CAP %s %s %s %s", server, nick, subcommand, tag)
# if tag == "message-tags":
# if subcommand == "ACK":
def _umodeis(self, _server, _handle, modes):
"""Numeric reply 221 RPL_UMODEIS, shows us our user modes."""
self.mainwindow.modes = modes
def _liststart(self, _server, _handle, *info):
"""Numeric reply 321 RPL_LISTSTART, start of list of channels."""
self.channel_list = []
info = list(info)
self.channel_field = info.index("Channel") # dunno if this is protocol
PchumLog.info('---> recv "CHANNELS: %s ', self.channel_field)
def _list(self, _server, _handle, *info):
"""Numeric reply 322 RPL_LIST, returns part of the list of channels."""
channel = info[self.channel_field]
usercount = info[1]
if channel not in self.channel_list and channel != "#pesterchum":
self.channel_list.append((channel, usercount))
PchumLog.info('---> recv "CHANNELS: %s ', channel)
def _listend(self, _server, _handle, _msg):
"""Numeric reply 323 RPL_LISTEND, end of a series of LIST replies."""
PchumLog.info('---> recv "CHANNELS END"')
self.channelListReceived.emit(PesterList(self.channel_list))
self.channel_list = []
def _channelmodeis(self, _server, _handle, channel, modes, _mode_params=""):
"""Numeric reply 324 RPL_CHANNELMODEIS, gives channel modes."""
PchumLog.debug("324 RPL_CHANNELMODEIS %s: %s", channel, modes)
self.modesUpdated.emit(channel, modes)
def _namreply(self, _server, _nick, _op, channel, names):
"""Numeric reply 353 RPL_NAMREPLY, part of a NAMES list of members, usually of a channel."""
namelist = names.split(" ")
PchumLog.info('---> recv "NAMES %s: %s names"', channel, len(namelist))
if not hasattr(self, "channelnames"):
self.channelnames = {}
if channel not in self.channelnames:
self.channelnames[channel] = []
self.channelnames[channel].extend(namelist)
def _endofnames(self, _server, _nick, channel, _msg):
"""Numeric reply 366 RPL_ENDOFNAMES, end of NAMES list of members, usually of a channel."""
try:
namelist = self.channelnames[channel]
except KeyError:
# EON seems to return with wrong capitalization sometimes?
for channel_name in self.channelnames:
if channel.casefold() == channel_name.casefold():
channel = channel_name
namelist = self.channelnames[channel]
del self.channelnames[channel]
self.namesReceived.emit(channel, PesterList(namelist))
if channel == "#pesterchum" and not self.joined:
self.joined = True
self.mainwindow.randhandler.setRunning(
self.mainwindow.randhandler.randNick in namelist
)
chums = self.mainwindow.chumList.chums
lesschums = []
for chum in chums:
if chum.handle in namelist:
lesschums.append(chum)
self.get_mood(*lesschums)
def _cannotsendtochan(self, _server, _handle, channel, msg):
"""Numeric reply 404 ERR_CANNOTSENDTOCHAN, we aren't in the channel or don't have voice."""
self.cannotSendToChan.emit(channel, msg)
def _erroneusnickname(self, *args):
"""Numeric reply 432 ERR_ERRONEUSNICKNAME, we have a forbidden or protocol-breaking nick."""
# Server is not allowing us to connect.
reason = "Handle is not allowed on this server.\n" + " ".join(args)
self.stop_irc = reason.strip()
self.disconnectIRC()
def _nicknameinuse(self, _server, _cmd, nick, _msg):
"""Numerical reply 433 ERR_NICKNAMEINUSE, raised when changing nick to nick in use."""
self._reset_nick(nick)
def _nickcollision(self, _server, _cmd, nick, _msg):
"""Numerical reply 436 ERR_NICKCOLLISION, raised during connect when nick is in use."""
self._reset_nick(nick)
def _reset_nick(self, oldnick):
"""Set our nick to a random pesterClient."""
random_number = int(random.random() * 9999) # Random int in range 0 <---> 9999
newnick = f"pesterClient{random_number}"
self._send_irc.nick(newnick)
self.nickCollision.emit(oldnick, newnick)
def _forbiddenchannel(self, _server, handle, channel, msg):
"""Numeric reply 448 'forbiddenchannel' reply, channel is forbidden.
Not in the specification but used by UnrealIRCd."""
self.signal_forbiddenchannel.emit(channel, msg)
self.userPresentUpdate.emit(handle, channel, "left")
def _inviteonlychan(self, _server, _handle, channel, _msg):
"""Numeric reply 473 ERR_INVITEONLYCHAN, can't join channel (+i)."""
self.chanInviteOnly.emit(channel)
def _keyvalue(self, _target, _handle_us, handle_owner, key, _visibility, *value):
"""METADATA DRAFT numeric reply 761 RPL_KEYVALUE, we received the value of a key.
The format of the METADATA server notication is:
METADATA <Target> <Key> <Visibility> <Value>
"""
if key.casefold() == "mood":
if is_valid_mood(value[0]):
mood = Mood(int(value[0]))
else:
PchumLog.warning(
"Mood index '%s' from '%s' is not valid.", value[0], handle_owner
)
mood = Mood(0)
self.moodUpdated.emit(handle_owner, mood)
def _nomatchingkey(self, _target, _our_handle, failed_handle, _key, *_error):
"""METADATA DRAFT numeric reply 766 ERR_NOMATCHINGKEY, no matching key."""
PchumLog.info("_nomatchingkey: %s", failed_handle)
# No point in GETMOOD-ing services
# Fallback to the normal GETMOOD method if getting mood via metadata fails.
if failed_handle.casefold() not in SERVICES:
self._send_irc.privmsg("#pesterchum", f"GETMOOD {failed_handle}")
def _keynotset(self, _target, _our_handle, failed_handle, _key, *_error):
"""METADATA DRAFT numeric reply 768 ERR_KEYNOTSET, key isn't set."""
PchumLog.info("_keynotset: %s", failed_handle)
# Fallback to the normal GETMOOD method if getting mood via metadata fails.
if failed_handle.casefold() not in SERVICES:
self._send_irc.privmsg("#pesterchum", f"GETMOOD {failed_handle}")
def _keynopermission(self, _target, _our_handle, failed_handle, _key, *_error):
"""METADATA DRAFT numeric reply 769 ERR_KEYNOPERMISSION, no permission for key."""
PchumLog.info("_keynopermission: %s", failed_handle)
# Fallback to the normal GETMOOD method if getting mood via metadata fails.
if failed_handle.casefold() not in SERVICES:
self._send_irc.privmsg("#pesterchum", f"GETMOOD {failed_handle}")
def _metadatasubok(self, *params):
""" "METADATA DRAFT numeric reply 770 RPL_METADATASUBOK, we subbed to a key."""
PchumLog.info("_metadatasubok: %s", params)
moodUpdated = QtCore.pyqtSignal("QString", Mood)
colorUpdated = QtCore.pyqtSignal("QString", QtGui.QColor)
messageReceived = QtCore.pyqtSignal("QString", "QString")
memoReceived = QtCore.pyqtSignal("QString", "QString", "QString")
noticeReceived = QtCore.pyqtSignal("QString", "QString")
inviteReceived = QtCore.pyqtSignal("QString", "QString")
timeCommand = QtCore.pyqtSignal("QString", "QString", "QString")
namesReceived = QtCore.pyqtSignal("QString", PesterList)
channelListReceived = QtCore.pyqtSignal(PesterList)
nickCollision = QtCore.pyqtSignal("QString", "QString")
getSvsnickedOn = QtCore.pyqtSignal("QString", "QString")
myHandleChanged = QtCore.pyqtSignal("QString")
chanInviteOnly = QtCore.pyqtSignal("QString")
modesUpdated = QtCore.pyqtSignal("QString", "QString")
connected = QtCore.pyqtSignal()
askToConnect = QtCore.pyqtSignal(Exception)
userPresentUpdate = QtCore.pyqtSignal("QString", "QString", "QString")
cannotSendToChan = QtCore.pyqtSignal("QString", "QString")
signal_forbiddenchannel = QtCore.pyqtSignal("QString", "QString")