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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef NET_URL_REQUEST_URL_REQUEST_FILE_JOB_H_
#define NET_URL_REQUEST_URL_REQUEST_FILE_JOB_H_
#include "base/lock.h"
#include "base/message_loop.h"
#include "base/thread.h"
#include "net/url_request/url_request.h"
#include "net/url_request/url_request_job.h"
#include "testing/gtest/include/gtest/gtest_prod.h"
// A request job that handles reading file URLs
class URLRequestFileJob : public URLRequestJob,
protected MessageLoop::Watcher {
public:
URLRequestFileJob(URLRequest* request);
virtual ~URLRequestFileJob();
virtual void Start();
virtual void Kill();
virtual bool ReadRawData(char* buf, int buf_size, int *bytes_read);
virtual bool IsRedirectResponse(GURL* location, int* http_status_code);
virtual bool GetMimeType(std::string* mime_type);
// Checks the status of the file. Set is_directory_ and is_not_found_
// accordingly. Call StartAsync on the main message loop when it's done.
void ResolveFile();
static URLRequest::ProtocolFactory Factory;
protected:
// The OS-specific full path name of the file
std::wstring file_path_;
private:
// The net util test wants to run our FileURLToFilePath function.
FRIEND_TEST(NetUtilTest, FileURLConversion);
void CloseHandles();
void StartAsync();
// MessageLoop::Watcher callback
virtual void OnObjectSignaled(HANDLE object);
// We use overlapped reads to ensure that reads from network file systems do
// not hang the application thread.
HANDLE handle_;
OVERLAPPED overlapped_;
bool is_waiting_; // true when waiting for overlapped result
bool is_directory_; // true when the file request is for a direcotry.
bool is_not_found_; // true when the file requested does not exist.
// This lock ensure that the network_file_thread is not using the loop_ after
// is has been set to NULL in Kill().
Lock loop_lock_;
// Main message loop where StartAsync has to be called.
MessageLoop* loop_;
// Thread used to query the attributes of files on the network.
// We need to do it on a separate thread because it can be really
// slow.
HANDLE network_file_thread_;
DISALLOW_EVIL_CONSTRUCTORS(URLRequestFileJob);
};
#endif // NET_URL_REQUEST_URL_REQUEST_FILE_JOB_H_
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