Protocol / client plugin changes to support interactively asking for a PIN

remoting/protocol/pin_client_authenticator.h

+// 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.
+
+#ifndef REMOTING_PROTOCOL_PIN_CLIENT_AUTHENTICATOR_H_
+#define REMOTING_PROTOCOL_PIN_CLIENT_AUTHENTICATOR_H_
+
+#include "base/callback_forward.h"
+#include "remoting/protocol/authentication_method.h"
+#include "remoting/protocol/authenticator.h"
+
+namespace buzz {
+class XmlElement;
+}
+
+namespace remoting {
+namespace protocol {
+
+class PinFetcher;
+
+class PinClientAuthenticator : public Authenticator {

[Sergey Ulanov, 2013/03/17 21:29:21]

Please add a comment to explain what this is for.

[rmsousa, 2013/03/18 21:07:26]

Done.

+ public:
+  PinClientAuthenticator(AuthenticationMethod::HashFunction hash_function,
+                         const std::string& authentication_tag,
+                         scoped_ptr<PinFetcher> pin_fetcher,
+                         Authenticator::State initial_state,
+                         const base::Closure& resume_callback);
+
+  virtual ~PinClientAuthenticator();
+
+  // Authenticator interface.
+  virtual State state() const OVERRIDE;
+  virtual RejectionReason rejection_reason() const OVERRIDE;
+  virtual void ProcessMessage(const buzz::XmlElement* message,
+                              const base::Closure& resume_callback) OVERRIDE;
+  virtual scoped_ptr<buzz::XmlElement> GetNextMessage() OVERRIDE;
+  virtual scoped_ptr<ChannelAuthenticator>
+      CreateChannelAuthenticator() const OVERRIDE;
+
+ private:
+  void OnPinFetched(
+      Authenticator::State initial_state,
+      const base::Closure& resume_callback,
+      const std::string& shared_secret);
+
+  AuthenticationMethod::HashFunction hash_function_;
+  std::string authentication_tag_;
+  scoped_ptr<PinFetcher> pin_fetcher_;
+
+  scoped_ptr<Authenticator> underlying_;
+  DISALLOW_COPY_AND_ASSIGN(PinClientAuthenticator);
+};
+
+}  // namespace protocol
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_PIN_CLIENT_AUTHENTICATOR_H_