| // Copyright 2018 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_RESOLVER_H_ |
| #define CHROME_BROWSER_CHROMEOS_FILEAPI_EXTERNAL_FILE_RESOLVER_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/callback.h" |
| #include "base/files/file.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "net/base/net_errors.h" |
| #include "net/http/http_byte_range.h" |
| #include "storage/browser/fileapi/file_system_url.h" |
| #include "url/gurl.h" |
| |
| namespace net { |
| class HttpRequestHeaders; |
| } |
| namespace storage { |
| class FileStreamReader; |
| class FileSystemContext; |
| } // namespace storage |
| class GURL; |
| |
| namespace chromeos { |
| |
| // 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); |
| }; |
| |
| // Resolves an externalfile URL to a redirect or a FileStreamReader. |
| class ExternalFileResolver { |
| public: |
| using ErrorCallback = base::OnceCallback<void(net::Error)>; |
| using RedirectCallback = base::OnceCallback<void(const std::string& mime_type, |
| const GURL& redirect_url)>; |
| using StreamCallback = base::OnceCallback<void( |
| const std::string& mime_type, |
| std::unique_ptr<IsolatedFileSystemScope> isolated_file_system_scope, |
| std::unique_ptr<storage::FileStreamReader> stream_reader, |
| int64_t size)>; |
| |
| explicit ExternalFileResolver(void* profile_id); |
| virtual ~ExternalFileResolver(); |
| |
| // Extracts any extra information needed to open the URL from the request's |
| // headers. This should be called before Resolve. |
| void ProcessHeaders(const net::HttpRequestHeaders& headers); |
| |
| // Resolves |url| to a redirect, or a FileStreamReader that contains the |
| // file's content. |
| void Resolve(const std::string& method, |
| const GURL& url, |
| ErrorCallback error_callback, |
| RedirectCallback redirect_callback, |
| StreamCallback stream_callback); |
| |
| private: |
| void OnHelperResultObtained( |
| net::Error error, |
| const scoped_refptr<storage::FileSystemContext>& file_system_context, |
| std::unique_ptr<IsolatedFileSystemScope> isolated_file_system_scope, |
| const storage::FileSystemURL& file_system_url, |
| const std::string& mime_type); |
| |
| void OnRedirectURLObtained(const GURL& redirect_url); |
| |
| void OnFileInfoObtained(base::File::Error error, |
| const base::File::Info& file_info); |
| |
| void* profile_id_; |
| net::Error range_parse_result_; |
| net::HttpByteRange byte_range_; |
| |
| ErrorCallback error_callback_; |
| RedirectCallback redirect_callback_; |
| StreamCallback stream_callback_; |
| |
| scoped_refptr<storage::FileSystemContext> file_system_context_; |
| std::unique_ptr<IsolatedFileSystemScope> isolated_file_system_scope_; |
| storage::FileSystemURL file_system_url_; |
| std::string mime_type_; |
| base::WeakPtrFactory<ExternalFileResolver> weak_ptr_factory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ExternalFileResolver); |
| }; |
| |
| } // namespace chromeos |
| |
| #endif // CHROME_BROWSER_CHROMEOS_FILEAPI_EXTERNAL_FILE_RESOLVER_H_ |