add dynamic configuration support

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

diff --git a/qwebirc/root.py b/qwebirc/root.py
index 99464c1fb93d91edf97fcc92e81a66f6f6f80038..6afaa0fdc81cfae4f66641a06d9e09f4b22699f8 100644 (file)
--- a/qwebirc/root.py
+++ b/qwebirc/root.py
@@ -1,9 +1,11 @@
+from twisted.protocols.policies import TimeoutMixin
 from twisted.web import resource, server, static, http
 from twisted.internet import error, reactor
 import engines
 import mimetypes
 import config
 import sigdebug
+import re
 
 class RootResource(resource.Resource):
   def getChild(self, name, request):
@@ -11,38 +13,65 @@ class RootResource(resource.Resource):
       name = "qui.html"
     return self.primaryChild.getChild(name, request)
 
-# we do NOT use the built-in timeOut mixin as it's very very buggy!
-class TimeoutHTTPChannel(http.HTTPChannel):
-  timeout = config.HTTP_REQUEST_TIMEOUT
-
-  def connectionMade(self):
-    self.customTimeout = reactor.callLater(self.timeout, self.timeoutOccured)
-    http.HTTPChannel.connectionMade(self)
-    
-  def timeoutOccured(self):
-    self.customTimeout = None
-    self.transport.loseConnection()
+class WrappedRequest(server.Request):
+  ip_re = re.compile(r"^((25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2})[.](25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2})[.](25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2})[.](25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2})|(::|(([a-fA-F0-9]{1,4}):){7}(([a-fA-F0-9]{1,4}))|(:(:([a-fA-F0-9]{1,4})){1,6})|((([a-fA-F0-9]{1,4}):){1,6}:)|((([a-fA-F0-9]{1,4}):)(:([a-fA-F0-9]{1,4})){1,6})|((([a-fA-F0-9]{1,4}):){2}(:([a-fA-F0-9]{1,4})){1,5})|((([a-fA-F0-9]{1,4}):){3}(:([a-fA-F0-9]{1,4})){1,4})|((([a-fA-F0-9]{1,4}):){4}(:([a-fA-F0-9]{1,4})){1,3})|((([a-fA-F0-9]{1,4}):){5}(:([a-fA-F0-9]{1,4})){1,2})))$", re.IGNORECASE)
+  def validIP(self, ip):
+    m = self.ip_re.match(ip)
+    if m is None:
+      return False
+    return True
     
-  def cancelTimeout(self):
-    if self.customTimeout is not None:
-      try:
-        self.customTimeout.cancel()
-        self.customTimeout = None
-      except error.AlreadyCalled:
-        pass
-
-  def connectionLost(self, reason):
-    self.cancelTimeout()
-    http.HTTPChannel.connectionLost(self, reason)
+  def _getClientIP(self):
+    # twisted.web.http.Request.getClientIP returns None if not IPv4;
+    # client.host has the real address
+
+    if not hasattr(self, "client") or not hasattr(self.client, "host"):
+        return None
+
+    real_ip = self.client.host
+
+    if real_ip[:7] == "::ffff:":
+      real_ip = real_ip[7:]
+
+    if not hasattr(config, "FORWARDED_FOR_HEADER"):
+      return real_ip
+
+    if real_ip not in config.FORWARDED_FOR_IPS:
+      return real_ip
+      
+    fake_ips = self.getHeader(config.FORWARDED_FOR_HEADER)
+    if fake_ips is None:
+      return real_ip
+      
+    fake_ip = fake_ips.split(",")[-1].strip()
+    if not self.validIP(fake_ip):
+      return real_ip
+      
+    return fake_ip
+
+  def getClientIP(self):
+    ip = self._getClientIP()
+
+    if ip is None:
+      return None
+
+    # make absolutely sure that the address doesn't start with : before we
+    # try to use it as a string to the IRC server!
+    return ip.lstrip(":")
+
+class HTTPChannel(http.HTTPChannel):
+  def timeoutConnection(self):
+    self.transport.abortConnection()
 
 class RootSite(server.Site):
-  # we do this ourselves as the built in timeout stuff is really really buggy
-  protocol = TimeoutHTTPChannel
-  
+  protocol = HTTPChannel
+
+  requestFactory = WrappedRequest
+
   def __init__(self, path, *args, **kwargs):
     root = RootResource()
+    kwargs["timeout"] = config.HTTP_REQUEST_TIMEOUT
     server.Site.__init__(self, root, *args, **kwargs)
-
     services = {}
     services["StaticEngine"] = root.primaryChild = engines.StaticEngine(path)
 
@@ -52,7 +81,10 @@ class RootSite(server.Site):
       root.putChild(path, sobj)
       
     register(engines.AJAXEngine, "e")
-    register(engines.FeedbackEngine, "feedback")
+    try:
+      register(engines.WebSocketEngine, "w")
+    except AttributeError:
+      pass
     register(engines.AuthgateEngine, "auth")
     register(engines.AdminEngine, "adminengine", services)