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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 CHROME_BROWSER_CHROMEOS_FILE_MANAGER_ZIP_FILE_CREATOR_H_
#define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_ZIP_FILE_CREATOR_H_
#include "base/callback.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "content/public/browser/utility_process_host_client.h"
namespace file_manager {
// ZipFileCreator creates a ZIP file from a specified list of files and
// directories under a common parent directory. This is done in a sandboxed
// subprocess to protect the browser process from handling arbitrary input data
// from untrusted sources.
//
// The class is ref-counted and its ownership is passed around internal callback
// objects and finally to UtilityProcessHost. After the job finishes, the host
// releases the ref-pointer and then ZipFileCreator is automatically deleted.
class ZipFileCreator : public content::UtilityProcessHostClient {
public:
typedef base::Callback<void(bool)> ResultCallback;
// Creates a zip file from the specified list of files and directories.
ZipFileCreator(const ResultCallback& callback,
const base::FilePath& src_dir,
const std::vector<base::FilePath>& src_relative_paths,
const base::FilePath& dest_file);
// Starts creating the zip file. Must be called from the UI thread.
// The result will be passed to |callback|. After the task is finished and
// |callback| is run, ZipFileCreator instance is deleted.
void Start();
private:
friend class ProcessHostClient;
virtual ~ZipFileCreator();
// Called after the file handle is opened on blocking pool.
void OnOpenFileHandle(base::File file);
// Starts the utility process that creates the zip file.
void StartProcessOnIOThread(base::File dest_file);
// UtilityProcessHostClient
virtual bool OnMessageReceived(const IPC::Message& message) override;
virtual void OnProcessCrashed(int exit_code) override;
// IPC message handlers.
void OnCreateZipFileSucceeded();
void OnCreateZipFileFailed();
void ReportDone(bool success);
// The callback.
ResultCallback callback_;
// The source directory for input files.
base::FilePath src_dir_;
// The list of source files paths to be included in the zip file.
// Entries are relative paths under directory |src_dir_|.
std::vector<base::FilePath> src_relative_paths_;
// The output zip file.
base::FilePath dest_file_;
};
} // namespace file_manager
#endif // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_ZIP_FILE_CREATOR_H_
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