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import collections, socket, ssl, sys, time
import IRCChannel, IRCLineHandler, IRCUser
class Server(object):
def __init__(self, id, hostname, port, password, ipv4, tls,
nickname, username, realname, bot):
self.connected = False
self.bot = bot
self.id = id
self.target_hostname = hostname
self.port = port
self.tls = tls
self.password = password
self.ipv4 = ipv4
self.original_nickname = nickname
self.original_username = username or nickname
self.original_realname = realname or nickname
self.write_buffer = b""
self.read_buffer = b""
self.users = {}
self.new_users = set([])
self.nickname_ids = {}
self.channels = {}
self.own_modes = set([])
self.mode_prefixes = collections.OrderedDict()
self.channel_modes = []
self.channel_types = []
self.last_read = None
self.attempted_join = {}
self.ping_sent = False
if ipv4:
self.socket = socket.socket(socket.AF_INET,
socket.SOCK_STREAM)
else:
self.socket = socket.socket(socket.AF_INET6,
socket.SOCK_STREAM)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
self.socket.settimeout(5.0)
if self.tls:
context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
self.socket = context.wrap_socket(self.socket)
self.cached_fileno = self.socket.fileno()
self.bot.events.on("timer").on("rejoin").hook(self.try_rejoin)
def __repr__(self):
return "%s:%s%s" % (self.target_hostname, "+" if self.tls else "",
self.port)
def __str__(self):
return repr(self)
def fileno(self):
fileno = self.socket.fileno()
return self.cached_fileno if fileno == -1 else fileno
def connect(self):
self.socket.connect((self.target_hostname, self.port))
if self.password:
self.send_pass(self.password)
# In principle, this belongs in the NS module. In reality, it's more practical to put this
# One-off case here for SASL
if "Nickserv" in self.bot.modules.modules and self.get_setting("nickserv-password"):
self.send_capability_request("sasl")
self.send_user(self.original_username, self.original_realname)
self.send_nick(self.original_nickname)
self.connected = True
def disconnect(self):
self.connected = False
try:
self.socket.shutdown(socket.SHUT_RDWR)
except:
pass
try:
self.socket.close()
except:
pass
def set_setting(self, setting, value):
self.bot.database.set_server_setting(self.id, setting,
value)
def get_setting(self, setting, default=None):
return self.bot.database.get_server_setting(self.id,
setting, default)
def find_settings(self, pattern, default=[]):
return self.bot.database.find_server_settings(self.id,
pattern, default)
def del_setting(self, setting):
self.bot.database.del_server_setting(self.id, setting)
def set_own_nickname(self, nickname):
self.nickname = nickname
self.nickname_lower = nickname.lower()
def is_own_nickname(self, nickname):
return nickname.lower() == self.nickname_lower
def add_own_mode(self, mode):
self.own_modes.add(mode)
def remove_own_mode(self, mode):
self.own_modes.remove(mode)
def has_user(self, nickname):
return nickname.lower() in self.nickname_ids
def get_user(self, nickname):
if not self.has_user(nickname):
new_user = IRCUser.User(nickname, self, self.bot)
self.bot.events.on("new").on("user").call(
user=new_user, server=self)
self.users[new_user.id] = new_user
self.nickname_ids[nickname.lower()] = new_user.id
self.new_users.add(new_user)
return self.users[self.nickname_ids[nickname.lower()]]
def remove_user(self, user):
print("removing %s" % user.nickname)
del self.users[user.id]
del self.nickname_ids[user.nickname_lower]
for channel in user.channels:
channel.remove_user(user)
def change_user_nickname(self, old_nickname, new_nickname):
self.nickname_ids[new_nickname.lower()] = self.nickname_ids.pop(old_nickname.lower())
def has_channel(self, channel_name):
return channel_name[0] in self.channel_types and channel_name.lower(
) in self.channels
def get_channel(self, channel_name):
if not self.has_channel(channel_name):
new_channel = IRCChannel.Channel(channel_name, self,
self.bot)
self.bot.events.on("new").on("channel").call(
channel=new_channel, server=self)
self.channels[new_channel.name] = new_channel
return self.channels[channel_name.lower()]
def remove_channel(self, channel):
for users in channel.users:
user.part_channel(channel)
del self.channels[channel.name]
def parse_line(self, line):
if not line: return
original_line = line
prefix, final = None, None
if line[0]==":":
prefix, line = line[1:].split(" ", 1)
command, line = (line.split(" ", 1) + [""])[:2]
if line[:1]==":":
final, line = line[1:], ""
elif " :" in line:
line, final = line.split(" :", 1)
args_split = line.split(" ") if line else []
if final: args_split.append(final)
IRCLineHandler.handle(original_line, prefix, command, args_split, final!=None, self.bot, self)
self.check_users()
def check_users(self):
for user in self.new_users:
if not len(user.channels):
self.remove_user(user)
self.new_users.clear()
def read(self):
encoding = self.bot.database.get_server_setting(self.id,
"encoding", "utf8")
fallback_encoding = self.bot.database.get_server_setting(
self.id, "fallback-encoding", "latin-1")
data = self.read_buffer + self.socket.recv(4096)
self.read_buffer = b""
data_lines = [line.strip(b"\r") for line in data.split(b"\n")]
if data_lines[-1]:
self.read_buffer = data_lines[-1]
data_lines.pop(-1)
decoded_lines = []
for line in data_lines:
try:
line = line.decode(encoding)
except:
try:
line = line.decode(fallback_encoding)
except:
continue
decoded_lines.append(line)
if not decoded_lines:
self.disconnect()
self.last_read = time.time()
self.ping_sent = False
return decoded_lines
def send(self, data):
encoded = data.split("\n")[0].strip("\r").encode("utf8")
if len(encoded) > 450:
encoded = encoded[:450]
self.write_buffer += b"%s\r\n" % encoded
print(encoded.decode("utf8"))
def _send(self):
self.write_buffer = self.write_buffer[self.socket.send(
self.write_buffer):]
def waiting_send(self):
return bool(len(self.write_buffer))
def send_user(self, username, realname):
self.send("USER %s - - :%s" % (username, realname))
def send_nick(self, nickname):
self.send("NICK %s" % nickname)
def send_capability_request(self, capname):
self.send("CAP REQ :%s" % capname)
def send_capability_end(self):
self.send("CAP END")
def send_authenticate(self, text):
self.send("AUTHENTICATE %s" % text)
def send_pass(self, password):
self.send("PASS %s" % password)
def send_ping(self, nonce="hello"):
self.send("PING :%s" % nonce)
def send_pong(self, nonce="hello"):
self.send("PONG :%s" % nonce)
def try_rejoin(self, event):
if event["server_id"] == self.id and event["channel_name"
] in self.attempted_join:
self.send_join(event["channel_name"], event["key"])
def send_join(self, channel_name, key=None):
self.attempted_join[channel_name.lower()] = key
self.send("JOIN %s%s" % (channel_name,
"" if key == None else " %s" % key))
def send_part(self, channel_name, reason=None):
self.send("PART %s%s" % (channel_name,
"" if reason == None else " %s" % reason))
def send_quit(self, reason="Leaving"):
self.send("QUIT :%s" % reason)
def send_message(self, target, message):
self.send("PRIVMSG %s :%s" % (target, message))
action = message.startswith("\01ACTION ") and message.endswith(
"\01")
if action:
message = message.split("\01ACTION ", 1)[1][:-1]
if self.has_channel(target):
self.get_channel(target).log.add_line(None, message, action, True)
else:
self.get_user(target).log.add_line(None, message, action, True)
def send_notice(self, target, message):
self.send("NOTICE %s :%s" % (target, message))
def send_mode(self, target, mode=None, args=None):
self.send("MODE %s%s%s" % (target, "" if mode == None else " %s" % mode,
"" if args == None else " %s" % args))
def send_topic(self, channel_name, topic):
self.send("TOPIC %s :%s" % (channel_name, topic))
def send_kick(self, channel_name, target, reason=None):
self.send("KICK %s %s%s" % (channel_name, target,
"" if reason == None else " :%s" % reason))
def send_names(self, channel_name):
self.send("NAMES %s" % channel_name)
def send_list(self, search_for=None):
self.send(
"LIST%s" % "" if search_for == None else " %s" % search_for)
def send_invite(self, target, channel_name):
self.send("INVITE %s %s" % (target, channel_name))
def send_whois(self, target):
self.send("WHOIS %s" % target)
def send_whowas(self, target, amount=None, server=None):
self.send("WHOWAS %s%s%s" % (target,
"" if amount == None else " %s" % amount,
"" if server == None else " :%s" % server))
def send_who(self, filter=None):
self.send("WHO%s" % ("" if filter == None else " %s" % filter))
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