To be used in internal change: 70123647 when processing a mid-connection

net/quic/crypto/quic_crypto_client_config.cc

 // Copyright 2013 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/crypto/quic_crypto_client_config.h"
 
 #include "base/metrics/sparse_histogram.h"
 #include "base/stl_util.h"
 #include "base/strings/string_util.h"
 #include "net/quic/crypto/cert_compressor.h"
@@ skipping 511 matching lines @@
            out_params->initial_premaster_secret, out_params->aead,
            out_params->client_nonce, out_params->server_nonce, hkdf_input,
            CryptoUtils::CLIENT, &out_params->initial_crypters)) {
     *error_details = "Symmetric key setup failed";
     return QUIC_CRYPTO_SYMMETRIC_KEY_SETUP_FAILED;
   }
 
   return QUIC_NO_ERROR;
 }
 
-QuicErrorCode QuicCryptoClientConfig::ProcessRejection(
-    const CryptoHandshakeMessage& rej,
+QuicErrorCode QuicCryptoClientConfig::CacheNewServerConfig(
+    const CryptoHandshakeMessage& message,
     QuicWallTime now,
     CachedState* cached,
     QuicCryptoNegotiatedParameters* out_params,
     string* error_details) {
   DCHECK(error_details != NULL);
 
-  if (rej.tag() != kREJ) {
-    *error_details = "Message is not REJ";
-    return QUIC_CRYPTO_INTERNAL_ERROR;
-  }
-
   StringPiece scfg;
-  if (!rej.GetStringPiece(kSCFG, &scfg)) {
+  if (!message.GetStringPiece(kSCFG, &scfg)) {
     *error_details = "Missing SCFG";
     return QUIC_CRYPTO_MESSAGE_PARAMETER_NOT_FOUND;
   }
 
   QuicErrorCode error = cached->SetServerConfig(scfg, now, error_details);
   if (error != QUIC_NO_ERROR) {
     return error;
   }
 
   StringPiece token;
-  if (rej.GetStringPiece(kSourceAddressTokenTag, &token)) {
+  if (message.GetStringPiece(kSourceAddressTokenTag, &token)) {
     cached->set_source_address_token(token);
   }
 
-  StringPiece nonce;
-  if (rej.GetStringPiece(kServerNonceTag, &nonce)) {
-    out_params->server_nonce = nonce.as_string();
-  }
-
   StringPiece proof, cert_bytes;
-  bool has_proof = rej.GetStringPiece(kPROF, &proof);
-  bool has_cert = rej.GetStringPiece(kCertificateTag, &cert_bytes);
+  bool has_proof = message.GetStringPiece(kPROF, &proof);
+  bool has_cert = message.GetStringPiece(kCertificateTag, &cert_bytes);
   if (has_proof && has_cert) {
     vector<string> certs;
     if (!CertCompressor::DecompressChain(cert_bytes, out_params->cached_certs,
                                          common_cert_sets, &certs)) {
       *error_details = "Certificate data invalid";
       return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER;
     }
 
     cached->SetProof(certs, proof);
   } else {
     cached->ClearProof();
     if (has_proof && !has_cert) {
       *error_details = "Certificate missing";
       return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER;
     }
 
     if (!has_proof && has_cert) {
       *error_details = "Proof missing";
       return QUIC_INVALID_CRYPTO_MESSAGE_PARAMETER;
     }
   }
 
+  return QUIC_NO_ERROR;
+}
+
+QuicErrorCode QuicCryptoClientConfig::ProcessRejection(
+    const CryptoHandshakeMessage& rej,
+    QuicWallTime now,
+    CachedState* cached,
+    QuicCryptoNegotiatedParameters* out_params,
+    string* error_details) {
+  DCHECK(error_details != NULL);
+
+  if (rej.tag() != kREJ) {
+    *error_details = "Message is not REJ";
+    return QUIC_CRYPTO_INTERNAL_ERROR;
+  }
+
+  QuicErrorCode error =
+      CacheNewServerConfig(rej, now, cached, out_params, error_details);
+  if (error != QUIC_NO_ERROR) {
+    return error;
+  }
+
+  StringPiece nonce;
+  if (rej.GetStringPiece(kServerNonceTag, &nonce)) {
+    out_params->server_nonce = nonce.as_string();
+  }
+
   const uint32* reject_reasons;
   size_t num_reject_reasons;
   COMPILE_ASSERT(sizeof(QuicTag) == sizeof(uint32), header_out_of_sync);
   if (rej.GetTaglist(kRREJ, &reject_reasons,
                      &num_reject_reasons) == QUIC_NO_ERROR) {
     uint32 packed_error = 0;
     for (size_t i = 0; i < num_reject_reasons; ++i) {
       // HANDSHAKE_OK is 0 and don't report that as error.
       if (reject_reasons[i] == HANDSHAKE_OK || reject_reasons[i] >= 32) {
         continue;
@@ skipping 164 matching lines @@
     return;
   }
 
   // Update canonical version to point at the "most recent" entry.
   canonical_server_map_[suffix_server_id] = server_id;
 
   server_state->InitializeFrom(*canonical_state);
 }
 
 }  // namespace net