[net/http auth] Split HttpAuthHandler creation from initialization.

net/http/http_auth_handler_ntlm.cc

 // Copyright (c) 2011 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/http/http_auth_handler_ntlm.h"
 
 #if !defined(NTLM_SSPI)
 #include "base/base64.h"
 #endif
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 #include "net/http/http_auth_challenge_tokenizer.h"
 
 namespace net {
 
 HttpAuth::AuthorizationResult HttpAuthHandlerNTLM::HandleAnotherChallenge(
     const HttpAuthChallengeTokenizer& challenge) {
   return ParseChallenge(challenge, false);
 }
 
 int HttpAuthHandlerNTLM::Init(const HttpAuthChallengeTokenizer& tok) {
-  auth_scheme_ = "ntlm";
   return ParseChallenge(tok, true) == HttpAuth::AUTHORIZATION_RESULT_ACCEPT
              ? OK
              : ERR_INVALID_RESPONSE;
 }
 
 int HttpAuthHandlerNTLM::GenerateAuthTokenImpl(
     const AuthCredentials* credentials,
     const HttpRequestInfo& request,
     const CompletionCallback& callback,
     std::string* auth_token) {
@@ skipping 59 matching lines @@
   *auth_token = std::string("NTLM ") + encode_output;
   return OK;
 #endif
 }
 
 // The NTLM challenge header looks like:
 //   WWW-Authenticate: NTLM auth-data
 HttpAuth::AuthorizationResult HttpAuthHandlerNTLM::ParseChallenge(
     const HttpAuthChallengeTokenizer& tok,
     bool initial_challenge) {
+  DCHECK(tok.SchemeIs("ntlm"));
 #if defined(NTLM_SSPI)
   // auth_sspi_ contains state for whether or not this is the initial challenge.
   return auth_sspi_.ParseChallenge(tok);
 #else
   // TODO(cbentzel): Most of the logic between SSPI, GSSAPI, and portable NTLM
   // authentication parsing could probably be shared - just need to know if
   // there was previously a challenge round.
   // TODO(cbentzel): Write a test case to validate that auth_data_ is left empty
   // in all failure conditions.
   auth_data_.clear();
@@ skipping 19 matching lines @@
 
 // static
 std::string HttpAuthHandlerNTLM::CreateSPN(const GURL& origin) {
   // The service principal name of the destination server.  See
   // http://msdn.microsoft.com/en-us/library/ms677949%28VS.85%29.aspx
   std::string target("HTTP/");
   target.append(GetHostAndPort(origin));
   return target;
 }
 
+// None of the implementations support pre-emptive authentication for NTLM.
+scoped_ptr<HttpAuthHandler>
+HttpAuthHandlerNTLM::Factory::CreateAndInitPreemptiveAuthHandler(
+    HttpAuthCache::Entry* cache_entry,
+    const HttpAuthChallengeTokenizer& tokenizer,
+    HttpAuth::Target target,
+    const BoundNetLog& net_log) {
+  return scoped_ptr<HttpAuthHandler>();
+}
+
 }  // namespace net