PairingAuthenticator implementation and plumbing.

remoting/protocol/pairing_host_authenticator.h

Index: remoting/protocol/pairing_host_authenticator.h
diff --git a/remoting/protocol/pairing_host_authenticator.h b/remoting/protocol/pairing_host_authenticator.h
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+++ b/remoting/protocol/pairing_host_authenticator.h
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+// 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_PAIRING_HOST_AUTHENTICATOR_H_
+#define REMOTING_PROTOCOL_PAIRING_HOST_AUTHENTICATOR_H_
+
+#include "base/memory/weak_ptr.h"
+#include "remoting/protocol/pairing_authenticator_base.h"
+
+namespace remoting {
+
+class RsaKeyPair;
+
+namespace protocol {
+
+class PairingRegistry;
+
+class PairingHostAuthenticator : public PairingAuthenticatorBase {
+ public:
+  PairingHostAuthenticator(
+      scoped_refptr<PairingRegistry> pairing_registry,
+      const std::string& local_cert,
+      scoped_refptr<RsaKeyPair> key_pair,
+      const std::string& pin);
+  virtual ~PairingHostAuthenticator();
+
+  // 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;
+
+ private:
+  // PairingAuthenticatorBase interface.
+  virtual void CreateV2AuthenticatorWithPIN(
+      State initial_state,
+      const SetAuthenticatorCallback& callback) OVERRIDE;
+  virtual void AddPairingElements(buzz::XmlElement* message) OVERRIDE;
+
+  // Protocol state.
+  scoped_refptr<PairingRegistry> pairing_registry_;
+  std::string local_cert_;
+  scoped_refptr<RsaKeyPair> key_pair_;
+  const std::string& pin_;
+  bool protocol_error_;
+
+  base::WeakPtrFactory<PairingHostAuthenticator> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(PairingHostAuthenticator);
+};
+
+}  // namespace protocol
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_PAIRING_AUTHENTICATOR_H_