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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chromecast/net/connectivity_checker.h" | 5 #include "chromecast/net/connectivity_checker.h" |
| 6 | 6 |
| 7 #include "base/command_line.h" | 7 #include "base/command_line.h" |
| 8 #include "base/logging.h" | 8 #include "base/logging.h" |
| 9 #include "base/message_loop/message_loop.h" | 9 #include "base/message_loop/message_loop.h" |
| 10 #include "chromecast/net/net_switches.h" | 10 #include "chromecast/net/net_switches.h" |
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| 62 net::NetworkChangeNotifier::AddConnectionTypeObserver(this); | 62 net::NetworkChangeNotifier::AddConnectionTypeObserver(this); |
| 63 if (!net::NetworkChangeNotifier::IsOffline()) { | 63 if (!net::NetworkChangeNotifier::IsOffline()) { |
| 64 loop_proxy_->PostTask(FROM_HERE, | 64 loop_proxy_->PostTask(FROM_HERE, |
| 65 base::Bind(&ConnectivityChecker::Check, this)); | 65 base::Bind(&ConnectivityChecker::Check, this)); |
| 66 } | 66 } |
| 67 } | 67 } |
| 68 | 68 |
| 69 ConnectivityChecker::~ConnectivityChecker() { | 69 ConnectivityChecker::~ConnectivityChecker() { |
| 70 DCHECK(loop_proxy_.get()); | 70 DCHECK(loop_proxy_.get()); |
| 71 loop_proxy_->DeleteSoon(FROM_HERE, url_request_context_.release()); | 71 loop_proxy_->DeleteSoon(FROM_HERE, url_request_context_.release()); |
| 72 loop_proxy_->DeleteSoon(FROM_HERE, url_request_.release()); |
| 72 } | 73 } |
| 73 | 74 |
| 74 void ConnectivityChecker::AddConnectivityObserver( | 75 void ConnectivityChecker::AddConnectivityObserver( |
| 75 ConnectivityObserver* observer) { | 76 ConnectivityObserver* observer) { |
| 76 connectivity_observer_list_->AddObserver(observer); | 77 connectivity_observer_list_->AddObserver(observer); |
| 77 } | 78 } |
| 78 | 79 |
| 79 void ConnectivityChecker::RemoveConnectivityObserver( | 80 void ConnectivityChecker::RemoveConnectivityObserver( |
| 80 ConnectivityObserver* observer) { | 81 ConnectivityObserver* observer) { |
| 81 connectivity_observer_list_->RemoveObserver(observer); | 82 connectivity_observer_list_->RemoveObserver(observer); |
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| 101 base::Bind(&ConnectivityChecker::Check, this)); | 102 base::Bind(&ConnectivityChecker::Check, this)); |
| 102 return; | 103 return; |
| 103 } | 104 } |
| 104 DCHECK(url_request_context_.get()); | 105 DCHECK(url_request_context_.get()); |
| 105 | 106 |
| 106 // If url_request_ is non-null, there is already a check going on. Don't | 107 // If url_request_ is non-null, there is already a check going on. Don't |
| 107 // start another. | 108 // start another. |
| 108 if (url_request_.get()) | 109 if (url_request_.get()) |
| 109 return; | 110 return; |
| 110 | 111 |
| 111 VLOG(2) << "Connectivity check: url=" << *connectivity_check_url_; | 112 VLOG(1) << "Connectivity check: url=" << *connectivity_check_url_; |
| 112 url_request_ = url_request_context_->CreateRequest( | 113 url_request_ = url_request_context_->CreateRequest( |
| 113 *connectivity_check_url_, net::MAXIMUM_PRIORITY, this, NULL); | 114 *connectivity_check_url_, net::MAXIMUM_PRIORITY, this, NULL); |
| 114 url_request_->set_method("HEAD"); | 115 url_request_->set_method("HEAD"); |
| 115 url_request_->Start(); | 116 url_request_->Start(); |
| 116 } | 117 } |
| 117 | 118 |
| 118 void ConnectivityChecker::OnConnectionTypeChanged( | 119 void ConnectivityChecker::OnConnectionTypeChanged( |
| 119 net::NetworkChangeNotifier::ConnectionType type) { | 120 net::NetworkChangeNotifier::ConnectionType type) { |
| 120 Cancel(); | 121 Cancel(); |
| 121 | 122 |
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| 132 int http_response_code = | 133 int http_response_code = |
| 133 (request->status().is_success() && | 134 (request->status().is_success() && |
| 134 request->response_info().headers.get() != NULL) | 135 request->response_info().headers.get() != NULL) |
| 135 ? request->response_info().headers->response_code() | 136 ? request->response_info().headers->response_code() |
| 136 : net::HTTP_BAD_REQUEST; | 137 : net::HTTP_BAD_REQUEST; |
| 137 | 138 |
| 138 // Clears resources. | 139 // Clears resources. |
| 139 url_request_.reset(NULL); // URLRequest::Cancel() is called in destructor. | 140 url_request_.reset(NULL); // URLRequest::Cancel() is called in destructor. |
| 140 | 141 |
| 141 if (http_response_code < 400) { | 142 if (http_response_code < 400) { |
| 143 VLOG(1) << "Connectivity check succeeded"; |
| 142 bad_responses_ = 0; | 144 bad_responses_ = 0; |
| 143 SetConnectivity(true); | 145 SetConnectivity(true); |
| 144 return; | 146 return; |
| 145 } | 147 } |
| 146 | 148 |
| 149 VLOG(1) << "Connectivity check failed: " << http_response_code; |
| 147 ++bad_responses_; | 150 ++bad_responses_; |
| 148 if (bad_responses_ > kNumBadResponses) { | 151 if (bad_responses_ > kNumBadResponses) { |
| 149 bad_responses_ = kNumBadResponses; | 152 bad_responses_ = kNumBadResponses; |
| 150 SetConnectivity(false); | 153 SetConnectivity(false); |
| 151 } | 154 } |
| 152 | 155 |
| 153 // Check again | 156 // Check again |
| 154 if (!net::NetworkChangeNotifier::IsOffline()) { | 157 if (!net::NetworkChangeNotifier::IsOffline()) { |
| 155 loop_proxy_->PostDelayedTask( | 158 loop_proxy_->PostDelayedTask( |
| 156 FROM_HERE, base::Bind(&ConnectivityChecker::Check, this), | 159 FROM_HERE, base::Bind(&ConnectivityChecker::Check, this), |
| 157 base::TimeDelta::FromSeconds(kConnectivityPeriodSeconds)); | 160 base::TimeDelta::FromSeconds(kConnectivityPeriodSeconds)); |
| 158 } | 161 } |
| 159 } | 162 } |
| 160 | 163 |
| 161 void ConnectivityChecker::OnReadCompleted(net::URLRequest* request, | 164 void ConnectivityChecker::OnReadCompleted(net::URLRequest* request, |
| 162 int bytes_read) { | 165 int bytes_read) { |
| 163 NOTREACHED(); | 166 NOTREACHED(); |
| 164 } | 167 } |
| 165 | 168 |
| 166 void ConnectivityChecker::Cancel() { | 169 void ConnectivityChecker::Cancel() { |
| 167 if (url_request_.get()) { | 170 if (url_request_.get()) { |
| 168 VLOG(2) << "Cancel connectivity check in progress"; | 171 VLOG(2) << "Cancel connectivity check in progress"; |
| 169 url_request_.reset(NULL); // URLRequest::Cancel() is called in destructor. | 172 url_request_.reset(NULL); // URLRequest::Cancel() is called in destructor. |
| 170 } | 173 } |
| 171 } | 174 } |
| 172 | 175 |
| 173 } // namespace chromecast | 176 } // namespace chromecast |
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