fix bugs, make https work

libmproxy/protocol2/http.py

@@ -4,7 +4,7 @@ from .. import version
 from ..exceptions import InvalidCredentials, HttpException, ProtocolException
 from .layer import Layer, ServerConnectionMixin
 from libmproxy import utils
-from .messages import ChangeServer, Connect, Reconnect, Kill
+from .messages import SetServer, Connect, Reconnect, Kill
 from libmproxy.protocol import KILL
 
 from libmproxy.protocol.http import HTTPFlow
@@ -71,19 +71,9 @@ class HttpLayer(Layer):
     HTTP 1 Layer
     """
 
-    def __init__(self, ctx):
+    def __init__(self, ctx, mode):
         super(HttpLayer, self).__init__(ctx)
-
-        # FIXME: Imports
-        from .http_proxy import HttpProxy, HttpUpstreamProxy
-
-        if any(isinstance(l, HttpProxy) for l in self.layers):
-            self.mode = "regular"
-        elif any(isinstance(l, HttpUpstreamProxy) for l in self.layers):
-            self.mode = "upstream"
-        else:
-            # also includes socks or reverse mode, which are handled similarly on this layer.
-            self.mode = "transparent"
+        self.mode = mode
 
     def __call__(self):
         while True:
@@ -104,7 +94,7 @@ class HttpLayer(Layer):
 
             # Regular Proxy Mode: Handle CONNECT
             if self.mode == "regular" and request.form_in == "authority":
-                self.server_address = (request.host, request.port)
+                yield SetServer((request.host, request.port), False, None)
                 self.send_to_client(make_connect_response(request.httpversion))
                 layer = self.ctx.next_layer(self)
                 for message in layer():
@@ -255,7 +245,7 @@ class HttpLayer(Layer):
         else:
             flow.request.host = self.ctx.server_address.host
             flow.request.port = self.ctx.server_address.port
-            flow.request.scheme = self.server_conn.tls_established
+            flow.request.scheme = "https" if self.server_conn.tls_established else "http"
 
         # TODO: Expose ChangeServer functionality to inline scripts somehow? (yield_from_callback?)
         request_reply = self.channel.ask("request", flow)
@@ -271,8 +261,8 @@ class HttpLayer(Layer):
         tls = (flow.request.scheme == "https")
         if self.mode == "regular" or self.mode == "transparent":
             # If there's an existing connection that doesn't match our expectations, kill it.
-            if self.server_address != address or tls != self.server_address.ssl_established:
-                yield ChangeServer(address, tls, address.host)
+            if self.server_address != address or tls != self.server_conn.ssl_established:
+                yield SetServer(address, tls, address.host)
             # Establish connection is neccessary.
             if not self.server_conn:
                 yield Connect()

libmproxy/protocol2/http_proxy.py

@@ -6,7 +6,7 @@ from .http import HttpLayer
 
 class HttpProxy(Layer, ServerConnectionMixin):
     def __call__(self):
-        layer = HttpLayer(self)
+        layer = HttpLayer(self, "regular")
         for message in layer():
             if not self._handle_server_message(message):
                 yield message
@@ -18,7 +18,7 @@ class HttpUpstreamProxy(Layer, ServerConnectionMixin):
         self.server_address = server_address
 
     def __call__(self):
-        layer = HttpLayer(self)
+        layer = HttpLayer(self, "upstream")
         for message in layer():
             if not self._handle_server_message(message):
                 yield message

libmproxy/protocol2/layer.py

@@ -35,7 +35,7 @@ import threading
 from netlib import tcp
 from ..proxy import Log
 from ..proxy.connection import ServerConnection
-from .messages import Connect, Reconnect, ChangeServer, Kill
+from .messages import Connect, Reconnect, SetServer, Kill
 from ..exceptions import ProtocolException
 
 
@@ -116,7 +116,7 @@ class ServerConnectionMixin(object):
         elif message == Connect:
             self._connect()
             return True
-        elif message == ChangeServer and message.depth == 1:
+        elif message == SetServer and message.depth == 1:
             if self.server_conn:
                 self._disconnect()
             self.server_address = message.address

libmproxy/protocol2/messages.py

@@ -27,7 +27,7 @@ class Reconnect(_Message):
     """
 
 
-class ChangeServer(_Message):
+class SetServer(_Message):
     """
     Change the upstream server.
     """

libmproxy/protocol2/root_context.py

@@ -2,7 +2,7 @@ from __future__ import (absolute_import, print_function, division)
 
 from .rawtcp import RawTcpLayer
 from .tls import TlsLayer
-
+from .http import HttpLayer
 
 class RootContext(object):
     """
@@ -38,10 +38,12 @@ class RootContext(object):
             return
 
         if is_tls_client_hello:
-            layer = TlsLayer(top_layer, True, True)
+            return TlsLayer(top_layer, True, True)
+        elif isinstance(top_layer, TlsLayer) and isinstance(top_layer.ctx, HttpLayer):
+            return HttpLayer(top_layer, "transparent")
         else:
-            layer = RawTcpLayer(top_layer)
-        return layer
+            return RawTcpLayer(top_layer)
+
 
     @property
     def layers(self):

libmproxy/protocol2/tls.py

@@ -5,7 +5,7 @@ from netlib import tcp
 
 from ..exceptions import ProtocolException
 from .layer import Layer, yield_from_callback
-from .messages import Connect, Reconnect, ChangeServer
+from .messages import Connect, Reconnect, SetServer
 
 
 class TlsLayer(Layer):
@@ -13,7 +13,6 @@ class TlsLayer(Layer):
         super(TlsLayer, self).__init__(ctx)
         self._client_tls = client_tls
         self._server_tls = server_tls
-        self._connected = False
         self.client_sni = None
         self._sni_from_server_change = None
 
@@ -44,9 +43,6 @@ class TlsLayer(Layer):
         client_tls_requires_server_cert = (
             self._client_tls and self._server_tls and not self.config.no_upstream_cert
         )
-        lazy_server_tls = (
-            self._server_tls and not client_tls_requires_server_cert
-        )
 
         if client_tls_requires_server_cert:
             for m in self._establish_tls_with_client_and_server():
@@ -56,18 +52,27 @@ class TlsLayer(Layer):
                 yield m
 
         layer = self.ctx.next_layer(self)
+
         for message in layer():
-            if message != Connect or not self._connected:
+            self.log("TlsLayer: %s" % message,"debug")
+            if not (message == Connect and self._connected):
                 yield message
-            if message == Connect:
-                if lazy_server_tls:
+
+            if message == Connect or message == Reconnect:
+                if self._server_tls and not self._server_tls_established:
                     self._establish_tls_with_server()
-            if message == ChangeServer and message.depth == 1:
-                self._server_tls = message.server_tls
+            if message == SetServer and message.depth == 1:
+                if message.server_tls is not None:
                     self._sni_from_server_change = message.sni
-            if message == Reconnect or message == ChangeServer:
-                if self._server_tls:
-                    self._establish_tls_with_server()
+                    self._server_tls = message.server_tls
+
+    @property
+    def _server_tls_established(self):
+        return self.server_conn and self.server_conn.tls_established
+
+    @property
+    def _connected(self):
+        return bool(self.server_conn)
 
     @property
     def sni_for_upstream_connection(self):
@@ -83,7 +88,6 @@ class TlsLayer(Layer):
 
         # First, try to connect to the server.
         yield Connect()
-        self._connected = True
         server_err = None
         try:
             self._establish_tls_with_server()