+#!/usr/bin/python3
+
+import argparse
import socket
import datetime
import select
import urllib.request
import html
-servernet = "irc.freenode.net"
-port = 6667
-servername = ""
-timeout = 240
-username = "plomlombot"
-nickname = username
-channel = "#zrolaps"
+# Defaults, may be overwritten by command line arguments.
+SERVER = "irc.freenode.net"
+PORT = 6667
+TIMEOUT = 240
+USERNAME = "plomlombot"
+NICKNAME = USERNAME
+
+class ExceptionForRestart(Exception):
+ pass
class IO:
- def __init__(self, server, port):
+ def __init__(self, server, port, timeout):
+ self.timeout = timeout
self.socket = socket.socket()
self.socket.connect((server, port))
self.socket.setblocking(0)
self.line_buffer = []
self.rune_buffer = ""
self.last_pong = time.time()
+ self.servername = self.recv_line(send_ping=False).split(" ")[0][1:]
- def _pingtest(self):
- if self.last_pong + timeout < time.time():
- raise RuntimeError("server not answering")
- self.send_line("PING " + nickname + " " + servername)
+ def _pingtest(self, send_ping=True):
+ if self.last_pong + self.timeout < time.time():
+ print("SERVER NOT ANSWERING")
+ raise ExceptionForRestart
+ if send_ping:
+ self.send_line("PING " + self.servername)
def send_line(self, msg):
msg = msg.replace("\r", " ")
while total_sent_len < msg_len:
sent_len = self.socket.send(bytes(msg[total_sent_len:], "UTF-8"))
if sent_len == 0:
- raise RuntimeError("socket connection broken")
+ print("SOCKET CONNECTION BROKEN")
+ raise ExceptionForRestart
total_sent_len += sent_len
- def recv_line_wrapped(self):
+ def _recv_line_wrapped(self, send_ping=True):
if len(self.line_buffer) > 0:
return self.line_buffer.pop(0)
while True:
- ready = select.select([self.socket], [], [], int(timeout / 2))
+ ready = select.select([self.socket], [], [], int(self.timeout / 2))
if not ready[0]:
- self._pingtest()
+ self._pingtest(send_ping)
return None
self.last_pong = time.time()
received_runes = self.socket.recv(1024).decode("UTF-8")
if len(received_runes) == 0:
- raise RuntimeError("socket connection broken")
+ print("SOCKET CONNECTION BROKEN")
+ raise ExceptionForRestart
self.rune_buffer += received_runes
lines_split = str.split(self.rune_buffer, "\r\n")
self.line_buffer += lines_split[:-1]
if len(self.line_buffer) > 0:
return self.line_buffer.pop(0)
- def recv_line(self):
- line = self.recv_line_wrapped()
+ def recv_line(self, send_ping=True):
+ line = self._recv_line_wrapped(send_ping)
if line:
print("LINE FROM SERVER " + str(datetime.datetime.now()) + ": " +
line)
return line
-io = IO(servernet, port)
-io.send_line("NICK " + nickname)
-io.send_line("USER " + username + " 0 * : ")
-io.send_line("JOIN " + channel)
-servername = io.recv_line().split(" ")[0][1:]
-while 1:
- line = io.recv_line()
- if not line:
- continue
- tokens = line.split(" ")
- if len(tokens) > 1:
- if tokens[1] == "PRIVMSG":
- sender = ""
- for rune in tokens[0]:
- if rune == "!":
- break
- if rune != ":":
- sender += rune
- receiver = ""
- for rune in tokens[2]:
- if rune == "!":
- break
- if rune != ":":
- receiver += rune
- target = sender
- if receiver != nickname:
- target = receiver
- msg = str.join(" ", tokens[3:])[1:]
+def init_session(server, port, timeout, nickname, username, channel):
+ print("CONNECTING TO " + server)
+ io = IO(server, port, timeout)
+ io.send_line("NICK " + nickname)
+ io.send_line("USER " + username + " 0 * : ")
+ io.send_line("JOIN " + channel)
+ return io
+
+def lineparser_loop(io, nickname):
+
+ def act_on_privmsg(tokens):
+
+ def url_check(msg):
matches = re.findall("(https?://[^\s]+)", msg)
for i in range(len(matches)):
url = matches[i]
- webpage = urllib.request.urlopen(url)
+ try:
+ webpage = urllib.request.urlopen(url, timeout=15)
+ except urllib.error.HTTPError as error:
+ print("TROUBLE FOLLOWING URL: " + str(error))
+ continue
+ charset = webpage.info().get_content_charset()
+ if not charset:
+ charset="utf-8"
content_type = webpage.info().get_content_type()
if not content_type in ('text/html', 'text/xml',
- 'application/xhtml+xml'):
+ 'application/xhtml+xml'):
+ print("TROUBLE INTERPRETING URL: bad content type "
+ + content_type)
continue
- charset = webpage.info().get_content_charset()
content = webpage.read().decode(charset)
title = str(content).split('<title>')[1].split('</title>')[0]
title = html.unescape(title)
- io.send_line("PRIVMSG "
- + target + " :page title for url: " + title)
- if tokens[0] == "PING":
- io.send_line("PONG " + tokens[1])
+ io.send_line("PRIVMSG " + target + " :page title for url: "
+ + title)
+
+ sender = ""
+ for rune in tokens[0]:
+ if rune == "!":
+ break
+ if rune != ":":
+ sender += rune
+ receiver = ""
+ for rune in tokens[2]:
+ if rune == "!":
+ break
+ if rune != ":":
+ receiver += rune
+ target = sender
+ if receiver != nickname:
+ target = receiver
+ msg = str.join(" ", tokens[3:])[1:]
+ url_check(msg)
+
+ while 1:
+ line = io.recv_line()
+ if not line:
+ continue
+ tokens = line.split(" ")
+ if len(tokens) > 1:
+ if tokens[1] == "PRIVMSG":
+ act_on_privmsg(tokens)
+ if tokens[0] == "PING":
+ io.send_line("PONG " + tokens[1])
+
+def parse_command_line_arguments():
+ parser = argparse.ArgumentParser()
+ parser.add_argument("-s, --server", action="store", dest="server",
+ default=SERVER,
+ help="server or server net to connect to (default: " + SERVER +
+ ")")
+ parser.add_argument("-p, --port", action="store", dest="port", type=int,
+ default=PORT, help="port to connect to (default : " + str(PORT) +
+ ")")
+ parser.add_argument("-t, --timeout", action="store", dest="timeout",
+ type=int, default=TIMEOUT,
+ help="timeout in seconds after which to attempt reconnect " +
+ "(default: " + str(TIMEOUT) + ")")
+ parser.add_argument("-u, --username", action="store", dest="username",
+ default=USERNAME, help="username to use (default: " + USERNAME +
+ ")")
+ parser.add_argument("-n, --nickname", action="store", dest="nickname",
+ default=NICKNAME, help="nickname to use (default: " + NICKNAME +
+ ")")
+ parser.add_argument("CHANNEL", action="store", help="channel to join")
+ opts, unknown = parser.parse_known_args()
+ return opts
+
+opts = parse_command_line_arguments()
+while 1:
+ try:
+ io = init_session(opts.server, opts.port, opts.timeout, opts.nickname,
+ opts.username, opts.CHANNEL)
+ lineparser_loop(io, opts.nickname)
+ except ExceptionForRestart:
+ io.socket.close()
+ continue
projects / plomlombot-irc.git / blobdiff