132 lines
4 KiB
C++
132 lines
4 KiB
C++
// Copyright (c) 2014 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef ATOM_BROWSER_NET_ASAR_URL_REQUEST_ASAR_JOB_H_
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#define ATOM_BROWSER_NET_ASAR_URL_REQUEST_ASAR_JOB_H_
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#include <memory>
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#include <string>
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#include "atom/browser/net/js_asker.h"
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#include "atom/common/asar/archive.h"
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#include "base/files/file_path.h"
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#include "base/memory/ref_counted.h"
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#include "base/memory/weak_ptr.h"
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#include "net/http/http_byte_range.h"
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#include "net/url_request/url_request_job.h"
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namespace base {
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class TaskRunner;
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}
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namespace net {
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class FileStream;
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}
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namespace asar {
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// Createa a request job according to the file path.
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net::URLRequestJob* CreateJobFromPath(
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const base::FilePath& full_path,
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net::URLRequest* request,
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net::NetworkDelegate* network_delegate,
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const scoped_refptr<base::TaskRunner> file_task_runner);
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class URLRequestAsarJob : public net::URLRequestJob {
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public:
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URLRequestAsarJob(net::URLRequest* request,
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net::NetworkDelegate* network_delegate);
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void Initialize(const scoped_refptr<base::TaskRunner> file_task_runner,
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const base::FilePath& file_path);
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protected:
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virtual ~URLRequestAsarJob();
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void InitializeAsarJob(const scoped_refptr<base::TaskRunner> file_task_runner,
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std::shared_ptr<Archive> archive,
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const base::FilePath& file_path,
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const Archive::FileInfo& file_info);
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void InitializeFileJob(const scoped_refptr<base::TaskRunner> file_task_runner,
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const base::FilePath& file_path);
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// net::URLRequestJob:
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void Start() override;
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void Kill() override;
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int ReadRawData(net::IOBuffer* buf, int buf_size) override;
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bool IsRedirectResponse(GURL* location, int* http_status_code) override;
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std::unique_ptr<net::SourceStream> SetUpSourceStream() override;
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bool GetMimeType(std::string* mime_type) const override;
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void SetExtraRequestHeaders(const net::HttpRequestHeaders& headers) override;
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int GetResponseCode() const override;
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void GetResponseInfo(net::HttpResponseInfo* info) override;
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private:
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// Meta information about the file. It's used as a member in the
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// URLRequestFileJob and also passed between threads because disk access is
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// necessary to obtain it.
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struct FileMetaInfo {
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FileMetaInfo();
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// Size of the file.
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int64_t file_size;
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// Mime type associated with the file.
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std::string mime_type;
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// Result returned from GetMimeTypeFromFile(), i.e. flag showing whether
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// obtaining of the mime type was successful.
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bool mime_type_result;
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// Flag showing whether the file exists.
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bool file_exists;
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// Flag showing whether the file name actually refers to a directory.
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bool is_directory;
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};
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// Fetches file info on a background thread.
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static void FetchMetaInfo(const base::FilePath& file_path,
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FileMetaInfo* meta_info);
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// Callback after fetching file info on a background thread.
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void DidFetchMetaInfo(const FileMetaInfo* meta_info);
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// Callback after opening file on a background thread.
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void DidOpen(int result);
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// Callback after seeking to the beginning of |byte_range_| in the file
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// on a background thread.
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void DidSeek(int64_t result);
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// Callback after data is asynchronously read from the file into |buf|.
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void DidRead(scoped_refptr<net::IOBuffer> buf, int result);
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// The type of this job.
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enum JobType {
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TYPE_ERROR,
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TYPE_ASAR,
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TYPE_FILE,
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};
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JobType type_;
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std::shared_ptr<Archive> archive_;
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base::FilePath file_path_;
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Archive::FileInfo file_info_;
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std::unique_ptr<net::FileStream> stream_;
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FileMetaInfo meta_info_;
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scoped_refptr<base::TaskRunner> file_task_runner_;
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net::HttpByteRange byte_range_;
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int64_t remaining_bytes_;
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int64_t seek_offset_;
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net::Error range_parse_result_;
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base::WeakPtrFactory<URLRequestAsarJob> weak_ptr_factory_;
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DISALLOW_COPY_AND_ASSIGN(URLRequestAsarJob);
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};
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} // namespace asar
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#endif // ATOM_BROWSER_NET_ASAR_URL_REQUEST_ASAR_JOB_H_
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