Third Party authentication protocol.

remoting/protocol/third_party_authenticator_base.cc

+// 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.
+
+#include "remoting/protocol/third_party_authenticator_base.h"
+
+#include "base/base64.h"
+#include "base/bind.h"
+#include "base/callback.h"
+#include "base/logging.h"
+#include "remoting/base/constants.h"
+#include "remoting/base/rsa_key_pair.h"
+#include "remoting/protocol/channel_authenticator.h"
+#include "remoting/protocol/v2_authenticator.h"
+#include "third_party/libjingle/source/talk/xmllite/xmlelement.h"
+
+namespace remoting {
+namespace protocol {
+
+// static
+const buzz::StaticQName ThirdPartyAuthenticatorBase::kTokenUrlTag =
+    { remoting::kChromotingXmlNamespace, "third-party-token-url" };
+const buzz::StaticQName ThirdPartyAuthenticatorBase::kTokenScopeTag =
+    { remoting::kChromotingXmlNamespace, "third-party-token-scope" };
+const buzz::StaticQName ThirdPartyAuthenticatorBase::kTokenTag =
+    { remoting::kChromotingXmlNamespace, "third-party-token" };
+
+ThirdPartyAuthenticatorBase::ThirdPartyAuthenticatorBase(
+    Authenticator::State initial_state)
+    : token_state_(initial_state),
+      rejection_reason_(INVALID_CREDENTIALS) {
+}
+
+ThirdPartyAuthenticatorBase::~ThirdPartyAuthenticatorBase() {
+}
+
+Authenticator::State ThirdPartyAuthenticatorBase::state() const {
+  if (token_state_ == ACCEPTED)
+    return underlying_->state();
+  return token_state_;
+}
+
+Authenticator::RejectionReason
+ThirdPartyAuthenticatorBase::rejection_reason() const {
+  DCHECK_EQ(state(), REJECTED);
+
+  if (token_state_ == REJECTED)
+    return rejection_reason_;
+  return underlying_->rejection_reason();
+}
+
+void ThirdPartyAuthenticatorBase::ProcessMessage(
+    const buzz::XmlElement* message,
+    const base::Closure& resume_callback) {
+  DCHECK_EQ(state(), WAITING_MESSAGE);
+
+  if (token_state_ == WAITING_MESSAGE) {
+    ProcessTokenMessage(message, resume_callback);
+  } else {
+    DCHECK_EQ(token_state_, ACCEPTED);
+    DCHECK(underlying_);
+    DCHECK_EQ(underlying_->state(), WAITING_MESSAGE);
+    underlying_->ProcessMessage(message, resume_callback);
+  }
+}
+
+scoped_ptr<buzz::XmlElement> ThirdPartyAuthenticatorBase::GetNextMessage() {
+  DCHECK_EQ(state(), MESSAGE_READY);
+
+  scoped_ptr<buzz::XmlElement> message;
+  if (underlying_ && underlying_->state() == MESSAGE_READY) {
+    message = underlying_->GetNextMessage().Pass();
+  } else {
+    message = CreateEmptyAuthenticatorMessage();
+  }
+
+  if (token_state_ == MESSAGE_READY)
+    AddTokenElements(message.get());
+
+  return message.Pass();
+}
+
+scoped_ptr<ChannelAuthenticator>
+ThirdPartyAuthenticatorBase::CreateChannelAuthenticator() const {
+  DCHECK_EQ(state(), ACCEPTED);
+
+  return underlying_->CreateChannelAuthenticator();
+}
+
+}  // namespace protocol
+}  // namespace remoting