Improve debug logging of QUIC crypto handshake.

net/quic/quic_crypto_stream.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/quic_crypto_stream.h"
 
 #include <string>
 
 #include "base/strings/string_piece.h"
 #include "net/quic/crypto/crypto_handshake.h"
 #include "net/quic/quic_connection.h"
 #include "net/quic/quic_session.h"
 #include "net/quic/quic_utils.h"
 
 using std::string;
 using base::StringPiece;
 
 namespace net {
 
+#define ENDPOINT (is_server_ ? "Server: " : " Client: ")
+
 QuicCryptoStream::QuicCryptoStream(QuicSession* session)
     : ReliableQuicStream(kCryptoStreamId, session),
       encryption_established_(false),
-      handshake_confirmed_(false) {
+      handshake_confirmed_(false),
+      is_server_(session->is_server()) {
   crypto_framer_.set_visitor(this);
   if (version() <= QUIC_VERSION_20) {
     // Prior to QUIC_VERSION_21 the crypto stream is not subject to any flow
     // control.
     DisableFlowControl();
   }
   // The crypto stream is exempt from connection level flow control.
   DisableConnectionFlowControlForThisStream();
 }
 
 void QuicCryptoStream::OnError(CryptoFramer* framer) {
   DLOG(WARNING) << "Error processing crypto data: "
                 << QuicUtils::ErrorToString(framer->error());
 }
 
 void QuicCryptoStream::OnHandshakeMessage(
     const CryptoHandshakeMessage& message) {
+  DVLOG(1) << ENDPOINT << "Received " << message.DebugString();
   session()->OnCryptoHandshakeMessageReceived(message);
 }
 
 uint32 QuicCryptoStream::ProcessRawData(const char* data,
                                         uint32 data_len) {
   if (!crypto_framer_.ProcessInput(StringPiece(data, data_len))) {
     CloseConnection(crypto_framer_.error());
     return 0;
   }
   return data_len;
 }
 
 QuicPriority QuicCryptoStream::EffectivePriority() const {
   return QuicUtils::HighestPriority();
 }
 
 void QuicCryptoStream::SendHandshakeMessage(
     const CryptoHandshakeMessage& message) {
+  DVLOG(1) << ENDPOINT << "Sending " << message.DebugString();
   session()->OnCryptoHandshakeMessageSent(message);
   const QuicData& data = message.GetSerialized();
   // TODO(wtc): check the return value.
   WriteOrBufferData(string(data.data(), data.length()), false, NULL);
 }
 
 const QuicCryptoNegotiatedParameters&
 QuicCryptoStream::crypto_negotiated_params() const {
   return crypto_negotiated_params_;
 }
 
 }  // namespace net