Implement ALPN in tlslite.

third_party/tlslite/tlslite/session.py

 # Authors: 
 #   Trevor Perrin
 #   Dave Baggett (Arcode Corporation) - canonicalCipherName
 #
 # See the LICENSE file for legal information regarding use of this file.
 
 """Class representing a TLS session."""
 
 from .utils.compat import *
 from .mathtls import *
@@ skipping 36 matching lines @@
     def __init__(self):
         self.masterSecret = bytearray(0)
         self.sessionID = bytearray(0)
         self.cipherSuite = 0
         self.srpUsername = ""
         self.clientCertChain = None
         self.serverCertChain = None
         self.tackExt = None
         self.tackInHelloExt = False
         self.serverName = ""
+        self.alpn_proto_selected = None

[davidben, 2016/08/04 22:29:26]

ALPN protocols are not remembered across session resumption. They're negotiated
independently on each connection.

[Bence, 2016/08/05 14:27:55]

Done.

         self.resumable = False
 
     def create(self, masterSecret, sessionID, cipherSuite,
             srpUsername, clientCertChain, serverCertChain, 
-            tackExt, tackInHelloExt, serverName, resumable=True):
+            tackExt, tackInHelloExt, alpn_proto_selected, serverName,
+            resumable=True):
         self.masterSecret = masterSecret
         self.sessionID = sessionID
         self.cipherSuite = cipherSuite
         self.srpUsername = srpUsername
         self.clientCertChain = clientCertChain
         self.serverCertChain = serverCertChain
         self.tackExt = tackExt
         self.tackInHelloExt = tackInHelloExt  
         self.serverName = serverName
+        self.alpn_proto_selected = alpn_proto_selected
         self.resumable = resumable
 
     def _clone(self):
         other = Session()
         other.masterSecret = self.masterSecret
         other.sessionID = self.sessionID
         other.cipherSuite = self.cipherSuite
         other.srpUsername = self.srpUsername
         other.clientCertChain = self.clientCertChain
         other.serverCertChain = self.serverCertChain
         other.tackExt = self.tackExt
         other.tackInHelloExt = self.tackInHelloExt
         other.serverName = self.serverName
+        other.alpn_proto_selected = self.alpn_proto_selected
         other.resumable = self.resumable
         return other
 
     def valid(self):
         """If this session can be used for session resumption.
 
         @rtype: bool
         @return: If this session can be used for session resumption.
         """
         return self.resumable and self.sessionID
@@ skipping 23 matching lines @@
         """
         return CipherSuite.canonicalCipherName(self.cipherSuite)
         
     def getMacName(self):
         """Get the name of the HMAC hash algo used with this connection.
 
         @rtype: str
         @return: The name of the HMAC hash algo used with this connection.
         """
         return CipherSuite.canonicalMacName(self.cipherSuite)