Resolved #582: display ClientConnection select cipher of TLS

mitmproxy/connections.py

@@ -21,6 +21,7 @@ class ClientConnection(tcp.BaseHandler, stateobject.StateObject):
         timestamp_ssl_setup: TLS established timestamp
         timestamp_end: Connection end timestamp
         sni: Server Name Indication sent by client during the TLS handshake
+        cipher_name: The current used cipher
     """
 
     def __init__(self, client_connection, address, server):
@@ -42,6 +43,7 @@ class ClientConnection(tcp.BaseHandler, stateobject.StateObject):
         self.timestamp_ssl_setup = None
         self.protocol = None
         self.sni = None
+        self.cipher_name = None
 
     def __bool__(self):
         return bool(self.connection) and not self.finished
@@ -64,6 +66,7 @@ class ClientConnection(tcp.BaseHandler, stateobject.StateObject):
         timestamp_ssl_setup=float,
         timestamp_end=float,
         sni=str,
+        cipher_name=str,
     )
 
     def copy(self):
@@ -90,13 +93,15 @@ class ClientConnection(tcp.BaseHandler, stateobject.StateObject):
             timestamp_start=None,
             timestamp_end=None,
             timestamp_ssl_setup=None,
-            sni=None
+            sni=None,
+            cipher_name=None,
         ))
 
     def convert_to_ssl(self, *args, **kwargs):
         super().convert_to_ssl(*args, **kwargs)
         self.timestamp_ssl_setup = time.time()
         self.sni = self.connection.get_servername()
+        self.cipher_name = self.connection.get_cipher_name()
 
     def finish(self):
         super().finish()

mitmproxy/io_compat.py

@@ -67,6 +67,7 @@ def convert_017_018(data):
 def convert_018_019(data):
     data["version"] = (0, 19)
     data["client_conn"]["sni"] = None
+    data["client_conn"]["cipher_name"] = None
     return data
 
 

mitmproxy/tools/console/flowdetailview.py

@@ -84,6 +84,8 @@ def flowdetails(state, flow):
         ]
         if cc.sni:
             parts.append(["Server Name Indication", cc.sni])
+        if cc.cipher_name:
+            parts.append(["Cipher Name", cc.cipher_name])
 
         text.extend(
             common.format_keyvals(parts, key="key", val="text", indent=4)

test/mitmproxy/tutils.py

@@ -133,6 +133,7 @@ def tclient_conn():
         timestamp_ssl_setup=2,
         timestamp_end=3,
         sni="address",
+        cipher_name="cipher",
     ))
     c.reply = controller.DummyReply()
     return c