add dynamic configuration support

[irc/quakenet/qwebirc.git] / qwebirc / ircclient.py

diff --git a/qwebirc/ircclient.py b/qwebirc/ircclient.py
index 1e85ea47709d2127a6381bcc114881772c17d621..8e06eaed64799658e78cf3fa9c5b9612e95db2ee 100644 (file)
--- a/qwebirc/ircclient.py
+++ b/qwebirc/ircclient.py
@@ -1,40 +1,67 @@
-import twisted, sys
+import twisted, sys, codecs, traceback
 from twisted.words.protocols import irc
-from twisted.internet import reactor, protocol
+from twisted.internet import reactor, protocol, abstract
 from twisted.web import resource, server
 from twisted.protocols import basic
-
-import hmac, time, config
+from twisted.names.client import Resolver
+import hmac, time, config, random, qwebirc.config_options as config_options
 from config import HMACTEMPORAL
-HMACKEY = hmac.HMAC(key=config.HMACKEY)
+
+if config.get("CONNECTION_RESOLVER"):
+  CONNECTION_RESOLVER = Resolver(servers=config.get("CONNECTION_RESOLVER"))
+else:
+  CONNECTION_RESOLVER = None
+
+if hasattr(config, "WEBIRC_MODE") and config.WEBIRC_MODE == "hmac":
+  HMACKEY = hmac.HMAC(key=config.HMACKEY)
 
 def hmacfn(*args):
   h = HMACKEY.copy()
   h.update("%d %s" % (int(time.time() / HMACTEMPORAL), " ".join(args)))
   return h.hexdigest()
 
+def utf8_iso8859_1(data, table=dict((x, x.decode("iso-8859-1")) for x in map(chr, range(0, 256)))):
+  return (table.get(data.object[data.start]), data.start+1)
+
+codecs.register_error("mixed-iso-8859-1", utf8_iso8859_1)
+
+def irc_decode(x):
+  try:
+    return x.decode("utf-8", "mixed-iso-8859-1")
+  except UnicodeDecodeError:
+    return x.decode("iso-8859-1", "ignore")
+
 class QWebIRCClient(basic.LineReceiver):
   delimiter = "\n"
-
+  def __init__(self, *args, **kwargs):
+    self.__nickname = "(unregistered)"
+    
   def dataReceived(self, data):
     basic.LineReceiver.dataReceived(self, data.replace("\r", ""))
 
   def lineReceived(self, line):
-    line = irc.lowDequote(line)
-    try:
-      line = line.decode("utf-8")
-    except UnicodeDecodeError:
-      line = line.decode("iso-8859-1", "ignore")
+    line = irc_decode(irc.lowDequote(line))
     
     try:
       prefix, command, params = irc.parsemsg(line)
       self.handleCommand(command, prefix, params)
     except irc.IRCBadMessage:
-      self.badMessage(line, *sys.exc_info())
+      # emit and ignore
+      traceback.print_exc()
+      return
+
+    if command == "001":
+      self.__nickname = params[0]
+      
+      if self.__perform is not None:
+        for x in self.__perform:
+          self.write(x)
+        self.__perform = None
+    elif command == "NICK":
+      nick = prefix.split("!", 1)[0]
+      if nick == self.__nickname:
+        self.__nickname = params[0]
         
-  def badMessage(self, args):
-    self("badmessage", args)
-  
   def handleCommand(self, command, prefix, params):
     self("c", command, prefix, params)
     
@@ -49,15 +76,39 @@ class QWebIRCClient(basic.LineReceiver):
     
     self.lastError = None
     f = self.factory.ircinit
-    nick, ident, ip, realname = f["nick"], f["ident"], f["ip"], f["realname"]
-    
-    hmac = hmacfn(ident, ip)
-    self.write("USER %s bleh bleh %s %s :%s" % (ident, ip, hmac, realname))
+    nick, ident, ip, realname, hostname, pass_ = f["nick"], f["ident"], f["ip"], f["realname"], f["hostname"], f.get("password")
+    self.__nickname = nick
+    self.__perform = f.get("perform")
+
+    if not hasattr(config, "WEBIRC_MODE"):
+      self.write("USER %s bleh bleh %s :%s" % (ident, ip, realname))
+    elif config.WEBIRC_MODE == "hmac":
+      hmac = hmacfn(ident, ip)
+      self.write("USER %s bleh bleh %s %s :%s" % (ident, ip, hmac, realname))
+    elif config.WEBIRC_MODE == "webirc":
+      self.write("WEBIRC %s qwebirc %s %s" % (config.WEBIRC_PASSWORD, hostname, ip))
+      self.write("USER %s bleh %s :%s" % (ident, ip, realname))
+    elif config.WEBIRC_MODE == "cgiirc":
+      self.write("PASS %s_%s_%s" % (config.CGIIRC_STRING, ip, hostname))
+      self.write("USER %s bleh %s :%s" % (ident, ip, realname))
+    elif config.WEBIRC_MODE == config_options.WEBIRC_REALNAME or config.WEBIRC_MODE is None: # last bit is legacy
+      if ip == hostname:
+        dispip = ip
+      else:
+        dispip = "%s/%s" % (hostname, ip)
+
+      self.write("USER %s bleh bleh :%s - %s" % (ident, dispip, realname))
+
+    if pass_ is not None:
+      self.write("PASS :%s" % pass_)
     self.write("NICK %s" % nick)
     
     self.factory.client = self
     self("connect")
 
+  def __str__(self):
+    return "<QWebIRCClient: %s!%s@%s>" % (self.__nickname, self.factory.ircinit["ident"], self.factory.ircinit["ip"])
+    
   def connectionLost(self, reason):
     if self.lastError:
       self.disconnect("Connection to IRC server lost: %s" % self.lastError)
@@ -95,9 +146,29 @@ class QWebIRCFactory(protocol.ClientFactory):
 
 def createIRC(*args, **kwargs):
   f = QWebIRCFactory(*args, **kwargs)
-  reactor.connectTCP(config.IRCSERVER, config.IRCPORT, f)
+  
+  tcpkwargs = {}
+  if hasattr(config, "OUTGOING_IP"):
+    tcpkwargs["bindAddress"] = (config.OUTGOING_IP, 0)
+  
+  if CONNECTION_RESOLVER is None:
+    if hasattr(config, "SSLPORT"):
+      from twisted.internet import ssl
+      reactor.connectSSL(config.IRCSERVER, config.SSLPORT, f, ssl.ClientContextFactory(), **tcpkwargs)
+    else:
+      reactor.connectTCP(config.IRCSERVER, config.IRCPORT, f, **tcpkwargs)
+    return f
+
+  def callback(result):
+    name, port = random.choice(sorted((str(x.payload.target), x.payload.port) for x in result[0]))
+    reactor.connectTCP(name, port, f, **tcpkwargs)
+  def errback(err):
+    f.clientConnectionFailed(None, err) # None?!
+
+  d = CONNECTION_RESOLVER.lookupService(config.IRCSERVER, (1, 3, 11))
+  d.addCallbacks(callback, errback)
   return f
 
 if __name__ == "__main__":
-  e = createIRC(lambda x: 2, nick="slug__moo", ident="mooslug", ip="1.2.3.6", realname="mooooo")
+  e = createIRC(lambda x: 2, nick="slug__moo", ident="mooslug", ip="1.2.3.6", realname="mooooo", hostname="1.2.3.4")
   reactor.run()