Token-based authentication for chromoting.

chrome/common/net/notifier/communicator/gaia_token_pre_xmpp_auth.h

+// Copyright (c) 2010 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 CHROME_COMMON_NET_NOTIFIER_COMMUNICATOR_GAIA_TOKEN_PRE_XMPP_AUTH_H_
+#define CHROME_COMMON_NET_NOTIFIER_COMMUNICATOR_GAIA_TOKEN_PRE_XMPP_AUTH_H_
+
+#include <string>
+#include <vector>
+
+#include "talk/xmpp/prexmppauth.h"
+
+namespace notifier {
+
+// This class implements buzz::PreXmppAuth interface for token-based
+// authentication in GTalk. It looks for the X-GOOGLE-TOKEN auth mechanism
+// and uses that instead of the default auth mechanism (PLAIN).
+class GaiaTokenPreXmppAuth : public buzz::PreXmppAuth {
+ public:
+  GaiaTokenPreXmppAuth(const std::string& username, const std::string& token,
+                       const std::string& token_service);
+
+  virtual ~GaiaTokenPreXmppAuth();
+
+  // buzz::PreXmppAuth (-buzz::SaslHandler) implementation.  We stub
+  // all the methods out as we don't actually do any authentication at
+  // this point.
+  virtual void StartPreXmppAuth(const buzz::Jid& jid,
+                                const talk_base::SocketAddress& server,
+                                const talk_base::CryptString& pass,
+                                const std::string& auth_cookie);
+
+  virtual bool IsAuthDone() const;
+
+  virtual bool IsAuthorized() const;
+
+  virtual bool HadError() const;
+
+  virtual int GetError() const;
+
+  virtual buzz::CaptchaChallenge GetCaptchaChallenge() const;
+
+  virtual std::string GetAuthCookie() const;
+
+  // buzz::SaslHandler implementation.
+
+  virtual std::string ChooseBestSaslMechanism(
+      const std::vector<std::string>& mechanisms, bool encrypted);
+
+  virtual buzz::SaslMechanism* CreateSaslMechanism(
+      const std::string& mechanism);
+
+ private:
+  std::string username_;
+  std::string token_;
+  std::string token_service_;
+};
+
+}  // namespace notifier
+
+#endif  // CHROME_COMMON_NET_NOTIFIER_COMMUNICATOR_GAIA_TOKEN_PRE_XMPP_AUTH_H_