Implement the NTLM authentication scheme by porting...

net/http/http_auth_handler_ntlm.h

+// Copyright (c) 2009 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.
+
+#ifndef NET_HTTP_HTTP_AUTH_HANDLER_NTLM_H_
+#define NET_HTTP_HTTP_AUTH_HANDLER_NTLM_H_
+
+#include <string>
+
+#include "base/scoped_ptr.h"
+#include "net/http/http_auth_handler.h"
+
+namespace net {
+
+class NTLMAuthModule;
+
+// Code for handling HTTP NTLM authentication.
+class HttpAuthHandlerNTLM : public HttpAuthHandler {
+ public:
+  HttpAuthHandlerNTLM();
+
+  virtual ~HttpAuthHandlerNTLM();
+
+  virtual bool NeedsIdentity();
+
+  virtual std::string GenerateCredentials(const std::wstring& username,
+                                          const std::wstring& password,
+                                          const HttpRequestInfo* request,
+                                          const ProxyInfo* proxy);
+
+ protected:
+  virtual bool Init(std::string::const_iterator challenge_begin,
+                    std::string::const_iterator challenge_end) {
+    return ParseChallenge(challenge_begin, challenge_end);
+  }
+
+ private:
+  // Parse the challenge, saving the results into this instance.
+  // Returns true on success.
+  bool ParseChallenge(std::string::const_iterator challenge_begin,
+                      std::string::const_iterator challenge_end);
+
+  // The actual implementation of NTLM.
+  //
+  // TODO(wtc): This artificial separation of the NTLM auth module from the
+  // NTLM auth handler comes from the Mozilla code.  It is due to an
+  // architecture constraint of Mozilla's (all crypto code must reside in the
+  // "PSM" component), so that the NTLM code, which does crypto, must be
+  // separated from the "netwerk" component.  Our source tree doesn't have
+  // this constraint, so we may want to merge NTLMAuthModule into this class.
+  scoped_ptr<NTLMAuthModule> ntlm_module_;
+
+  // The base64-encoded string following "NTLM" in the "WWW-Authenticate" or
+  // "Proxy-Authenticate" response header.
+  std::string auth_data_;
+};
+
+}  // namespace net
+
+#endif  // NET_HTTP_HTTP_AUTH_HANDLER_NTLM_H_