| // Copyright 2014 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 CONTENT_PUBLIC_RENDERER_REQUEST_PEER_H_ |
| #define CONTENT_PUBLIC_RENDERER_REQUEST_PEER_H_ |
| |
| #include <stdint.h> |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/task_runner.h" |
| #include "content/common/content_export.h" |
| #include "mojo/public/cpp/base/big_buffer.h" |
| #include "mojo/public/cpp/system/data_pipe.h" |
| #include "services/network/public/mojom/url_response_head.mojom-forward.h" |
| |
| namespace net { |
| struct RedirectInfo; |
| } |
| |
| namespace network { |
| struct URLLoaderCompletionStatus; |
| } |
| |
| namespace content { |
| |
| // This is implemented by our custom resource loader within content. The Peer |
| // and it's bridge should have identical lifetimes as they represent each end of |
| // a communication channel. |
| // |
| // These callbacks mirror net::URLRequest::Delegate and the order and |
| // conditions in which they will be called are identical. See url_request.h |
| // for more information. |
| class CONTENT_EXPORT RequestPeer { |
| public: |
| // Called as upload progress is made. |
| // note: only for requests with upload progress enabled. |
| virtual void OnUploadProgress(uint64_t position, uint64_t size) = 0; |
| |
| // Called when a redirect occurs. The implementation may return false to |
| // suppress the redirect. The URLResponseHead provides information about |
| // the redirect response and the RedirectInfo includes information about the |
| // request to be made if the method returns true. |removed_headers| outputs |
| // header field names that need to be removed. |
| virtual bool OnReceivedRedirect( |
| const net::RedirectInfo& redirect_info, |
| network::mojom::URLResponseHeadPtr head, |
| std::vector<std::string>* removed_headers) = 0; |
| |
| // Called when response headers are available (after all redirects have |
| // been followed). |
| virtual void OnReceivedResponse(network::mojom::URLResponseHeadPtr head) = 0; |
| |
| // Called when the response body becomes available. |
| virtual void OnStartLoadingResponseBody( |
| mojo::ScopedDataPipeConsumerHandle body) = 0; |
| |
| // Called when the transfer size is updated. This method may be called |
| // multiple times or not at all. The transfer size is the length of the |
| // response (including both headers and the body) over the network. |
| // |transfer_size_diff| is the difference from the value previously reported |
| // one (including the one in OnReceivedResponse). It must be positive. |
| virtual void OnTransferSizeUpdated(int transfer_size_diff) = 0; |
| |
| // Called when metadata generated by the renderer is retrieved from the |
| // cache. This method may be called zero or one times. |
| virtual void OnReceivedCachedMetadata(mojo_base::BigBuffer data) {} |
| |
| // Called when the response is complete. This method signals completion of |
| // the resource load. |
| virtual void OnCompletedRequest( |
| const network::URLLoaderCompletionStatus& status) = 0; |
| |
| // Returns the task runner on which this request peer is running. |
| virtual scoped_refptr<base::TaskRunner> GetTaskRunner() = 0; |
| |
| virtual ~RequestPeer() {} |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_PUBLIC_RENDERER_REQUEST_PEER_H_ |