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// Copyright (c) 2012 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_BROWSER_DOWNLOAD_SAVE_FILE_RESOURCE_HANDLER_H_
#define CONTENT_BROWSER_DOWNLOAD_SAVE_FILE_RESOURCE_HANDLER_H_
#include <string>
#include "base/memory/ref_counted.h"
#include "content/browser/loader/resource_handler.h"
#include "url/gurl.h"
namespace net {
class URLRequest;
}
namespace content {
class SaveFileManager;
// Forwards data to the save thread.
class SaveFileResourceHandler : public ResourceHandler {
public:
SaveFileResourceHandler(net::URLRequest* request,
int render_process_host_id,
int render_view_id,
const GURL& url,
SaveFileManager* manager);
virtual ~SaveFileResourceHandler();
// ResourceHandler Implementation:
virtual bool OnUploadProgress(uint64 position, uint64 size) OVERRIDE;
// Saves the redirected URL to final_url_, we need to use the original
// URL to match original request.
virtual bool OnRequestRedirected(const GURL& url,
ResourceResponse* response,
bool* defer) OVERRIDE;
// Sends the download creation information to the download thread.
virtual bool OnResponseStarted(ResourceResponse* response,
bool* defer) OVERRIDE;
// Pass-through implementation.
virtual bool OnWillStart(const GURL& url, bool* defer) OVERRIDE;
// Pass-through implementation.
virtual bool OnBeforeNetworkStart(const GURL& url, bool* defer) OVERRIDE;
// Creates a new buffer, which will be handed to the download thread for file
// writing and deletion.
virtual bool OnWillRead(scoped_refptr<net::IOBuffer>* buf,
int* buf_size,
int min_size) OVERRIDE;
// Passes the buffer to the download file writer.
virtual bool OnReadCompleted(int bytes_read, bool* defer) OVERRIDE;
virtual void OnResponseCompleted(const net::URLRequestStatus& status,
const std::string& security_info,
bool* defer) OVERRIDE;
// N/A to this flavor of SaveFileResourceHandler.
virtual void OnDataDownloaded(int bytes_downloaded) OVERRIDE;
// If the content-length header is not present (or contains something other
// than numbers), StringToInt64 returns 0, which indicates 'unknown size' and
// is handled correctly by the SaveManager.
void set_content_length(const std::string& content_length);
void set_content_disposition(const std::string& content_disposition) {
content_disposition_ = content_disposition;
}
private:
int save_id_;
int render_process_id_;
int render_view_id_;
scoped_refptr<net::IOBuffer> read_buffer_;
std::string content_disposition_;
GURL url_;
GURL final_url_;
int64 content_length_;
SaveFileManager* save_manager_;
static const int kReadBufSize = 32768; // bytes
DISALLOW_COPY_AND_ASSIGN(SaveFileResourceHandler);
};
} // namespace content
#endif // CONTENT_BROWSER_DOWNLOAD_SAVE_FILE_RESOURCE_HANDLER_H_
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