irc: use own simple implementation

modules/irc.py

+import socket
 import ssl
-import irc.bot
 
-LIMIT = 35
+CACHE_LIMIT = 35
+HOST = 'bouncer.ksal.de'
+PORT = 28921
+AUTH_USER = 'infodisplay/Freenode'
+AUTH_PW = 'Fagee9ie'
+NICK = 'infodisplay'
+CHANNEL = '#stratum0'
 
-class InfodisplayClient(irc.bot.SingleServerIRCBot):
-    def __init__(self, emit, channel, nickname, server, port=6667):
-        pw = 'Fagee9ie'
-        ssl_factory = irc.connection.Factory(wrapper=ssl.wrap_socket)
-        irc.bot.SingleServerIRCBot.__init__(self, [(server, port, pw)], nickname, nickname, connect_factory=ssl_factory, username='infodisplay/Freenode')
-        self.channel = channel
-        self.emit = emit
-        self.cache = []
-
-    def on_nicknameinuse(self, c, e):
-        c.nick(c.get_nickname() + "_")
-
-    def on_welcome(self, c, e):
-        c.join(self.channel)
-
-    def on_pubmsg(self, c, e):
-        user = self._clean_str(e.source.nick)
-        if user == '***':
-            return
-        msg = self._clean_str(e.arguments[0])
-        line = '<p><span>{}</span> {}</p>'.format(user, msg)
-        self.cache.append(line)
-        if len(self.cache) > LIMIT:
-            self.cache.pop(0)
-        self.emit(''.join(self.cache), outlet='inner')
-
-    def _clean_str(self, s):
-        return s.replace('<','&lt;').replace('>','&gt;')
+def _clean_str(s):
+    return s.replace('<','&lt;').replace('>','&gt;')
 
 def run(emit, log_err):
-    #TODO log errors
     emit('<h3>&nbsp;IRC #stratum0</h3><div class="chat" data-infodisplay-outlet="inner"></div>')
-    bot = InfodisplayClient(emit, '#stratum0', 'infodisplay', 'bouncer.ksal.de', port=28921)
-    bot.start()
-
+    ctx = ssl.SSLContext(protocol=ssl.PROTOCOL_TLSv1)
+    while 1:
+        cache = []
+        sock = socket.socket()
+        conn = ctx.wrap_socket(sock)
+        conn.connect((HOST,PORT))
+        fp = conn.makefile('rb')
+
+        conn.write('PASS {}:{}\r\n'.format(AUTH_USER, AUTH_PW).encode())
+        conn.write('NICK {}\r\nUSER {} 8 * :{}\r\n'.format(NICK, AUTH_USER, NICK).encode())
+        conn.write('JOIN {}\r\n'.format(CHANNEL).encode())
+        try:
+            while 1:
+                line = fp.readline().decode()
+                source, command, args = line.split(' ', 2)
+                if command == 'PRIVMSG' and 'znc@znc.in' not in source:
+                    channel, message = args.split(' :', 1)
+                    sender = source.split('!', 1)[0][1:]
+                    if channel == CHANNEL:
+                        out = '<p><span>{}</span> {}</p>'.format(sender, _clean_str(message))
+                        cache.append(out)
+                        if len(cache) > CACHE_LIMIT:
+                            cache.pop(0)
+                        emit(''.join(cache), outlet='inner')
+        finally:
+            log_err('Connection cycled')
+            fp.close()
+            conn.close()