| // 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 CHROME_BROWSER_CHROMEOS_FILEAPI_EXTERNAL_FILE_URL_REQUEST_JOB_H_ |
| #define CHROME_BROWSER_CHROMEOS_FILEAPI_EXTERNAL_FILE_URL_REQUEST_JOB_H_ |
| |
| #include <string> |
| |
| #include "base/basictypes.h" |
| #include "base/callback.h" |
| #include "base/memory/weak_ptr.h" |
| #include "chrome/browser/chromeos/drive/file_errors.h" |
| #include "net/base/net_errors.h" |
| #include "net/http/http_byte_range.h" |
| #include "net/url_request/url_request_job.h" |
| #include "storage/browser/blob/file_stream_reader.h" |
| #include "storage/browser/fileapi/file_system_url.h" |
| |
| namespace net { |
| class IOBuffer; |
| class NetworkDelegate; |
| class URLRequest; |
| } // namespace net |
| |
| namespace chromeos { |
| |
| // ExternalFileURLRequestJob is the gateway between network-level drive:... |
| // requests for drive resources and FileSystem. It exposes content URLs |
| // formatted as drive:<drive-file-path>. |
| // The methods should be run on IO thread. |
| // TODO(hirono): After removing MHTML support, stop to use the special |
| // externalfile: scheme and use filesystem: URL directly. crbug.com/415455 |
| class ExternalFileURLRequestJob : public net::URLRequestJob { |
| public: |
| // Scope of isolated file system. |
| class IsolatedFileSystemScope { |
| public: |
| explicit IsolatedFileSystemScope(const std::string& file_system_id); |
| ~IsolatedFileSystemScope(); |
| |
| private: |
| std::string file_system_id_; |
| DISALLOW_COPY_AND_ASSIGN(IsolatedFileSystemScope); |
| }; |
| |
| // Callback to take results from an internal helper defined in |
| // drive_url_request_job.cc. |
| typedef base::Callback<void( |
| net::Error, |
| const scoped_refptr<storage::FileSystemContext>& file_system_context, |
| scoped_ptr<IsolatedFileSystemScope> isolated_file_system_scope, |
| const storage::FileSystemURL& file_system_url, |
| const std::string& mime_type)> HelperCallback; |
| |
| ExternalFileURLRequestJob(void* profile_id, |
| net::URLRequest* request, |
| net::NetworkDelegate* network_delegate); |
| |
| // net::URLRequestJob overrides: |
| virtual void SetExtraRequestHeaders( |
| const net::HttpRequestHeaders& headers) override; |
| virtual void Start() override; |
| virtual void Kill() override; |
| virtual bool GetMimeType(std::string* mime_type) const override; |
| virtual bool IsRedirectResponse(GURL* location, |
| int* http_status_code) override; |
| virtual bool ReadRawData(net::IOBuffer* buf, |
| int buf_size, |
| int* bytes_read) override; |
| |
| protected: |
| virtual ~ExternalFileURLRequestJob(); |
| |
| private: |
| // Called from an internal helper class defined in drive_url_request_job.cc, |
| // which is running on the UI thread. |
| void OnHelperResultObtained( |
| net::Error error, |
| const scoped_refptr<storage::FileSystemContext>& file_system_context, |
| scoped_ptr<IsolatedFileSystemScope> isolated_file_system_scope, |
| const storage::FileSystemURL& file_system_url, |
| const std::string& mime_type); |
| |
| // Called from FileSystemBackend::GetRedirectURLForContents. |
| void OnRedirectURLObtained(const GURL& redirect_url); |
| |
| // Called from DriveURLRequestJob::OnFileInfoObtained. |
| void OnFileInfoObtained(base::File::Error result, |
| const base::File::Info& file_info); |
| |
| // Called when DriveFileStreamReader::Read is completed. |
| void OnReadCompleted(int read_result); |
| |
| void* const profile_id_; |
| |
| // The range of the file to be returned. |
| net::HttpByteRange byte_range_; |
| int64 remaining_bytes_; |
| |
| scoped_refptr<storage::FileSystemContext> file_system_context_; |
| scoped_ptr<IsolatedFileSystemScope> isolated_file_system_scope_; |
| storage::FileSystemURL file_system_url_; |
| std::string mime_type_; |
| scoped_ptr<storage::FileStreamReader> stream_reader_; |
| GURL redirect_url_; |
| |
| // This should remain the last member so it'll be destroyed first and |
| // invalidate its weak pointers before other members are destroyed. |
| base::WeakPtrFactory<ExternalFileURLRequestJob> weak_ptr_factory_; |
| DISALLOW_COPY_AND_ASSIGN(ExternalFileURLRequestJob); |
| }; |
| |
| } // namespace chromeos |
| |
| #endif // CHROME_BROWSER_CHROMEOS_FILEAPI_EXTERNAL_FILE_URL_REQUEST_JOB_H_ |