| // Copyright 2018 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 "content/browser/loader/prefetch_url_loader.h" |
| |
| #include "base/feature_list.h" |
| #include "content/browser/web_package/signed_exchange_utils.h" |
| #include "content/browser/web_package/web_package_prefetch_handler.h" |
| #include "content/public/common/content_features.h" |
| #include "net/url_request/url_request_context_getter.h" |
| #include "services/network/public/cpp/features.h" |
| #include "services/network/public/cpp/shared_url_loader_factory.h" |
| |
| namespace content { |
| |
| PrefetchURLLoader::PrefetchURLLoader( |
| int32_t routing_id, |
| int32_t request_id, |
| uint32_t options, |
| base::RepeatingCallback<int(void)> frame_tree_node_id_getter, |
| const network::ResourceRequest& resource_request, |
| network::mojom::URLLoaderClientPtr client, |
| const net::MutableNetworkTrafficAnnotationTag& traffic_annotation, |
| scoped_refptr<network::SharedURLLoaderFactory> network_loader_factory, |
| URLLoaderThrottlesGetter url_loader_throttles_getter, |
| ResourceContext* resource_context, |
| scoped_refptr<net::URLRequestContextGetter> request_context_getter) |
| : frame_tree_node_id_getter_(frame_tree_node_id_getter), |
| url_(resource_request.url), |
| report_raw_headers_(resource_request.report_raw_headers), |
| load_flags_(resource_request.load_flags), |
| network_loader_factory_(std::move(network_loader_factory)), |
| client_binding_(this), |
| forwarding_client_(std::move(client)), |
| url_loader_throttles_getter_(url_loader_throttles_getter), |
| resource_context_(resource_context), |
| request_context_getter_(std::move(request_context_getter)) { |
| DCHECK(network_loader_factory_); |
| |
| if (resource_request.request_initiator) |
| request_initiator_ = *resource_request.request_initiator; |
| |
| network::mojom::URLLoaderClientPtr network_client; |
| client_binding_.Bind(mojo::MakeRequest(&network_client)); |
| client_binding_.set_connection_error_handler(base::BindOnce( |
| &PrefetchURLLoader::OnNetworkConnectionError, base::Unretained(this))); |
| network_loader_factory_->CreateLoaderAndStart( |
| mojo::MakeRequest(&loader_), routing_id, request_id, options, |
| resource_request, std::move(network_client), traffic_annotation); |
| } |
| |
| PrefetchURLLoader::~PrefetchURLLoader() = default; |
| |
| void PrefetchURLLoader::FollowRedirect( |
| const base::Optional<std::vector<std::string>>& |
| to_be_removed_request_headers, |
| const base::Optional<net::HttpRequestHeaders>& modified_request_headers) { |
| DCHECK(!modified_request_headers.has_value()) << "Redirect with modified " |
| "headers was not supported " |
| "yet. crbug.com/845683"; |
| if (web_package_prefetch_handler_) { |
| // Rebind |client_binding_| and |loader_|. |
| client_binding_.Bind(web_package_prefetch_handler_->FollowRedirect( |
| mojo::MakeRequest(&loader_))); |
| return; |
| } |
| |
| loader_->FollowRedirect(base::nullopt, base::nullopt); |
| } |
| |
| void PrefetchURLLoader::ProceedWithResponse() { |
| loader_->ProceedWithResponse(); |
| } |
| |
| void PrefetchURLLoader::SetPriority(net::RequestPriority priority, |
| int intra_priority_value) { |
| loader_->SetPriority(priority, intra_priority_value); |
| } |
| |
| void PrefetchURLLoader::PauseReadingBodyFromNet() { |
| loader_->PauseReadingBodyFromNet(); |
| } |
| |
| void PrefetchURLLoader::ResumeReadingBodyFromNet() { |
| loader_->ResumeReadingBodyFromNet(); |
| } |
| |
| void PrefetchURLLoader::OnReceiveResponse( |
| const network::ResourceResponseHead& response) { |
| if (signed_exchange_utils::ShouldHandleAsSignedHTTPExchange(url_, response)) { |
| DCHECK(!web_package_prefetch_handler_); |
| |
| // Note that after this point this doesn't directly get upcalls from the |
| // network. (Until |this| calls the handler's FollowRedirect.) |
| web_package_prefetch_handler_ = std::make_unique<WebPackagePrefetchHandler>( |
| frame_tree_node_id_getter_, report_raw_headers_, load_flags_, response, |
| std::move(loader_), client_binding_.Unbind(), network_loader_factory_, |
| request_initiator_, url_, url_loader_throttles_getter_, |
| resource_context_, request_context_getter_, this); |
| return; |
| } |
| forwarding_client_->OnReceiveResponse(response); |
| } |
| |
| void PrefetchURLLoader::OnReceiveRedirect( |
| const net::RedirectInfo& redirect_info, |
| const network::ResourceResponseHead& head) { |
| forwarding_client_->OnReceiveRedirect(redirect_info, head); |
| } |
| |
| void PrefetchURLLoader::OnUploadProgress(int64_t current_position, |
| int64_t total_size, |
| base::OnceCallback<void()> callback) { |
| forwarding_client_->OnUploadProgress(current_position, total_size, |
| std::move(callback)); |
| } |
| |
| void PrefetchURLLoader::OnReceiveCachedMetadata( |
| const std::vector<uint8_t>& data) { |
| // Just drop this; we don't need to forward this to the renderer |
| // for prefetch. |
| } |
| |
| void PrefetchURLLoader::OnTransferSizeUpdated(int32_t transfer_size_diff) { |
| forwarding_client_->OnTransferSizeUpdated(transfer_size_diff); |
| } |
| |
| void PrefetchURLLoader::OnStartLoadingResponseBody( |
| mojo::ScopedDataPipeConsumerHandle body) { |
| // Just drain this here; we don't need to forward the body data to |
| // the renderer for prefetch. |
| DCHECK(!pipe_drainer_); |
| pipe_drainer_ = |
| std::make_unique<mojo::DataPipeDrainer>(this, std::move(body)); |
| } |
| |
| void PrefetchURLLoader::OnComplete( |
| const network::URLLoaderCompletionStatus& status) { |
| forwarding_client_->OnComplete(status); |
| } |
| |
| void PrefetchURLLoader::OnNetworkConnectionError() { |
| // The network loader has an error; we should let the client know it's closed |
| // by dropping this, which will in turn make this loader destroyed. |
| forwarding_client_.reset(); |
| } |
| |
| } // namespace content |