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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/child/throttling_url_loader.h" | |
| 6 | |
| 7 namespace content { | |
| 8 | |
| 9 // static | |
| 10 std::unique_ptr<ThrottlingURLLoader> ThrottlingURLLoader::CreateLoaderAndStart( | |
| 11 mojom::URLLoaderFactory* factory, | |
| 12 std::vector<std::unique_ptr<URLLoaderThrottle>> throttles, | |
| 13 int32_t routing_id, | |
| 14 int32_t request_id, | |
| 15 uint32_t options, | |
| 16 std::unique_ptr<ResourceRequest> url_request, | |
| 17 mojom::URLLoaderClient* client) { | |
| 18 std::unique_ptr<ThrottlingURLLoader> loader( | |
| 19 new ThrottlingURLLoader(std::move(throttles), client)); | |
| 20 loader->Start(factory, routing_id, request_id, options, | |
| 21 std::move(url_request)); | |
| 22 return loader; | |
| 23 } | |
| 24 | |
| 25 ThrottlingURLLoader::~ThrottlingURLLoader() {} | |
| 26 | |
| 27 void ThrottlingURLLoader::FollowRedirect() { | |
| 28 if (url_loader_) | |
| 29 url_loader_->FollowRedirect(); | |
| 30 } | |
| 31 | |
| 32 void ThrottlingURLLoader::SetPriority(net::RequestPriority priority, | |
| 33 int32_t intra_priority_value) { | |
| 34 if (!url_loader_ && !cancelled_by_throttle_) { | |
| 35 DCHECK_EQ(DEFERRED_START, deferred_stage_); | |
| 36 set_priority_cached_ = true; | |
| 37 priority_ = priority; | |
| 38 intra_priority_value_ = intra_priority_value; | |
| 39 return; | |
| 40 } | |
| 41 | |
| 42 url_loader_->SetPriority(priority, intra_priority_value); | |
| 43 } | |
| 44 | |
| 45 ThrottlingURLLoader::ThrottlingURLLoader( | |
| 46 std::vector<std::unique_ptr<URLLoaderThrottle>> throttles, | |
| 47 mojom::URLLoaderClient* client) | |
| 48 : forwarding_client_(client), client_binding_(this) { | |
| 49 if (throttles.size() > 0) { | |
| 50 // TODO(yzshen): Implement a URLLoaderThrottle subclass which handles a list | |
| 51 // of URLLoaderThrottles. | |
| 52 CHECK_EQ(1u, throttles.size()); | |
| 53 throttle_ = std::move(throttles[0]); | |
| 54 throttle_->set_delegate(this); | |
| 55 } | |
| 56 } | |
| 57 | |
| 58 void ThrottlingURLLoader::Start(mojom::URLLoaderFactory* factory, | |
| 59 int32_t routing_id, | |
| 60 int32_t request_id, | |
| 61 uint32_t options, | |
| 62 std::unique_ptr<ResourceRequest> url_request) { | |
| 63 DCHECK_EQ(DEFERRED_NONE, deferred_stage_); | |
| 64 DCHECK(!cancelled_by_throttle_); | |
| 65 | |
| 66 if (throttle_) { | |
| 67 bool deferred = false; | |
| 68 throttle_->WillStartRequest(url_request->url, url_request->load_flags, | |
| 69 url_request->resource_type, &deferred); | |
| 70 if (cancelled_by_throttle_) | |
| 71 return; | |
| 72 | |
| 73 if (deferred) { | |
| 74 deferred_stage_ = DEFERRED_START; | |
| 75 url_loader_factory_ = factory; | |
| 76 routing_id_ = routing_id; | |
| 77 request_id_ = request_id; | |
| 78 options_ = options; | |
| 79 url_request_ = std::move(url_request); | |
| 80 return; | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 factory->CreateLoaderAndStart(mojo::MakeRequest(&url_loader_), routing_id, | |
| 85 request_id, options, *url_request, | |
| 86 client_binding_.CreateInterfacePtrAndBind()); | |
| 87 } | |
| 88 | |
| 89 void ThrottlingURLLoader::OnReceiveResponse( | |
| 90 const ResourceResponseHead& response_head, | |
| 91 const base::Optional<net::SSLInfo>& ssl_info, | |
| 92 mojom::DownloadedTempFilePtr downloaded_file) { | |
| 93 DCHECK_EQ(DEFERRED_NONE, deferred_stage_); | |
| 94 DCHECK(!cancelled_by_throttle_); | |
| 95 | |
| 96 if (throttle_) { | |
| 97 bool deferred = false; | |
| 98 throttle_->WillProcessResponse(&deferred); | |
| 99 if (cancelled_by_throttle_) | |
| 100 return; | |
| 101 | |
| 102 if (deferred) { | |
| 103 deferred_stage_ = DEFERRED_RESPONSE; | |
| 104 response_head_ = response_head; | |
| 105 ssl_info_ = ssl_info; | |
| 106 downloaded_file_ = std::move(downloaded_file); | |
| 107 client_binding_.PauseIncomingMethodCallProcessing(); | |
| 108 return; | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 forwarding_client_->OnReceiveResponse(response_head, ssl_info, | |
| 113 std::move(downloaded_file)); | |
| 114 } | |
| 115 | |
| 116 void ThrottlingURLLoader::OnReceiveRedirect( | |
| 117 const net::RedirectInfo& redirect_info, | |
| 118 const ResourceResponseHead& response_head) { | |
| 119 DCHECK_EQ(DEFERRED_NONE, deferred_stage_); | |
| 120 DCHECK(!cancelled_by_throttle_); | |
| 121 | |
| 122 if (throttle_) { | |
| 123 bool deferred = false; | |
| 124 throttle_->WillRedirectRequest(redirect_info, &deferred); | |
| 125 if (cancelled_by_throttle_) | |
| 126 return; | |
| 127 | |
| 128 if (deferred) { | |
| 129 deferred_stage_ = DEFERRED_REDIRECT; | |
| 130 redirect_info_ = redirect_info; | |
| 131 response_head_ = response_head; | |
| 132 client_binding_.PauseIncomingMethodCallProcessing(); | |
| 133 return; | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 forwarding_client_->OnReceiveRedirect(redirect_info, response_head); | |
| 138 } | |
| 139 | |
| 140 void ThrottlingURLLoader::OnDataDownloaded(int64_t data_len, | |
| 141 int64_t encoded_data_len) { | |
| 142 DCHECK_EQ(DEFERRED_NONE, deferred_stage_); | |
| 143 DCHECK(!cancelled_by_throttle_); | |
| 144 | |
| 145 forwarding_client_->OnDataDownloaded(data_len, encoded_data_len); | |
| 146 } | |
| 147 | |
| 148 void ThrottlingURLLoader::OnUploadProgress( | |
| 149 int64_t current_position, | |
| 150 int64_t total_size, | |
| 151 OnUploadProgressCallback ack_callback) { | |
| 152 DCHECK_EQ(DEFERRED_NONE, deferred_stage_); | |
| 153 DCHECK(!cancelled_by_throttle_); | |
| 154 | |
| 155 forwarding_client_->OnUploadProgress(current_position, total_size, | |
| 156 std::move(ack_callback)); | |
| 157 } | |
| 158 | |
| 159 void ThrottlingURLLoader::OnReceiveCachedMetadata( | |
| 160 const std::vector<uint8_t>& data) { | |
| 161 DCHECK_EQ(DEFERRED_NONE, deferred_stage_); | |
| 162 DCHECK(!cancelled_by_throttle_); | |
| 163 | |
| 164 forwarding_client_->OnReceiveCachedMetadata(data); | |
| 165 } | |
| 166 | |
| 167 void ThrottlingURLLoader::OnTransferSizeUpdated(int32_t transfer_size_diff) { | |
| 168 DCHECK_EQ(DEFERRED_NONE, deferred_stage_); | |
| 169 DCHECK(!cancelled_by_throttle_); | |
| 170 | |
| 171 forwarding_client_->OnTransferSizeUpdated(transfer_size_diff); | |
| 172 } | |
| 173 | |
| 174 void ThrottlingURLLoader::OnStartLoadingResponseBody( | |
| 175 mojo::ScopedDataPipeConsumerHandle body) { | |
| 176 DCHECK_EQ(DEFERRED_NONE, deferred_stage_); | |
| 177 DCHECK(!cancelled_by_throttle_); | |
| 178 | |
| 179 forwarding_client_->OnStartLoadingResponseBody(std::move(body)); | |
| 180 } | |
| 181 | |
| 182 void ThrottlingURLLoader::OnComplete( | |
| 183 const ResourceRequestCompletionStatus& status) { | |
| 184 DCHECK_EQ(DEFERRED_NONE, deferred_stage_); | |
| 185 DCHECK(!cancelled_by_throttle_); | |
| 186 | |
| 187 forwarding_client_->OnComplete(status); | |
| 188 } | |
| 189 | |
| 190 void ThrottlingURLLoader::CancelWithError(int error_code) { | |
| 191 // TODO(yzshen): Support a mode that cancellation also deletes the disk cache | |
| 192 // entry. | |
| 193 if (cancelled_by_throttle_) | |
| 194 return; | |
| 195 | |
| 196 cancelled_by_throttle_ = true; | |
| 197 | |
| 198 ResourceRequestCompletionStatus request_complete_data; | |
| 199 request_complete_data.error_code = error_code; | |
| 200 request_complete_data.completion_time = base::TimeTicks::Now(); | |
| 201 | |
| 202 deferred_stage_ = DEFERRED_NONE; | |
| 203 client_binding_.Close(); | |
| 204 url_loader_.reset(); | |
| 205 | |
| 206 forwarding_client_->OnComplete(request_complete_data); | |
| 207 } | |
| 208 | |
| 209 void ThrottlingURLLoader::Resume() { | |
| 210 if (cancelled_by_throttle_ || deferred_stage_ == DEFERRED_NONE) | |
| 211 return; | |
| 212 | |
| 213 switch (deferred_stage_) { | |
| 214 case DEFERRED_START: { | |
| 215 url_loader_factory_->CreateLoaderAndStart( | |
| 216 mojo::MakeRequest(&url_loader_), routing_id_, request_id_, options_, | |
| 217 *url_request_, client_binding_.CreateInterfacePtrAndBind()); | |
| 218 | |
| 219 if (set_priority_cached_) { | |
| 220 set_priority_cached_ = false; | |
| 221 url_loader_->SetPriority(priority_, intra_priority_value_); | |
| 222 } | |
| 223 break; | |
| 224 } | |
| 225 case DEFERRED_REDIRECT: { | |
| 226 client_binding_.ResumeIncomingMethodCallProcessing(); | |
| 227 forwarding_client_->OnReceiveRedirect(redirect_info_, response_head_); | |
| 228 break; | |
| 229 } | |
| 230 case DEFERRED_RESPONSE: { | |
| 231 client_binding_.ResumeIncomingMethodCallProcessing(); | |
| 232 forwarding_client_->OnReceiveResponse(response_head_, ssl_info_, | |
| 233 std::move(downloaded_file_)); | |
| 234 break; | |
| 235 } | |
| 236 default: | |
| 237 NOTREACHED(); | |
| 238 break; | |
| 239 } | |
| 240 deferred_stage_ = DEFERRED_NONE; | |
| 241 } | |
| 242 | |
| 243 } // namespace content | |
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Chromium Code Reviews
Issue 2914423002:
Network service: move URLLoaderThrottle and ThrottlingURLLoader. (Closed)
