Index: webkit/browser/fileapi/file_system_backend.h |
diff --git a/webkit/browser/fileapi/file_system_backend.h b/webkit/browser/fileapi/file_system_backend.h |
deleted file mode 100644 |
index f6cca94b7037aef65f33f2178226645cfa336b7c..0000000000000000000000000000000000000000 |
--- a/webkit/browser/fileapi/file_system_backend.h |
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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 WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_BACKEND_H_ |
-#define WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_BACKEND_H_ |
- |
-#include <string> |
-#include <vector> |
- |
-#include "base/callback_forward.h" |
-#include "base/files/file.h" |
-#include "base/files/file_path.h" |
-#include "base/memory/scoped_ptr.h" |
-#include "webkit/browser/fileapi/file_permission_policy.h" |
-#include "webkit/browser/fileapi/open_file_system_mode.h" |
-#include "webkit/browser/webkit_storage_browser_export.h" |
-#include "webkit/common/fileapi/file_system_types.h" |
- |
-class GURL; |
- |
-namespace webkit_blob { |
-class FileStreamReader; |
-} |
- |
-namespace fileapi { |
- |
-class AsyncFileUtil; |
-class CopyOrMoveFileValidatorFactory; |
-class FileSystemURL; |
-class FileStreamWriter; |
-class FileSystemContext; |
-class FileSystemFileUtil; |
-class FileSystemOperation; |
-class FileSystemQuotaUtil; |
- |
-// An interface for defining a file system backend. |
-// |
-// NOTE: when you implement a new FileSystemBackend for your own |
-// FileSystem module, please contact to kinuko@chromium.org. |
-// |
-class WEBKIT_STORAGE_BROWSER_EXPORT FileSystemBackend { |
- public: |
- // Callback for InitializeFileSystem. |
- typedef base::Callback<void(const GURL& root_url, |
- const std::string& name, |
- base::File::Error error)> |
- OpenFileSystemCallback; |
- virtual ~FileSystemBackend() {} |
- |
- // Returns true if this filesystem backend can handle |type|. |
- // One filesystem backend may be able to handle multiple filesystem types. |
- virtual bool CanHandleType(FileSystemType type) const = 0; |
- |
- // This method is called right after the backend is registered in the |
- // FileSystemContext and before any other methods are called. Each backend can |
- // do additional initialization which depends on FileSystemContext here. |
- virtual void Initialize(FileSystemContext* context) = 0; |
- |
- // Resolves the filesystem root URL and the name for the given |url|. |
- // This verifies if it is allowed to request (or create) the filesystem and if |
- // it can access (or create) the root directory. |
- // If |mode| is CREATE_IF_NONEXISTENT calling this may also create the root |
- // directory (and/or related database entries etc) for the filesystem if it |
- // doesn't exist. |
- virtual void ResolveURL(const FileSystemURL& url, |
- OpenFileSystemMode mode, |
- const OpenFileSystemCallback& callback) = 0; |
- |
- // Returns the specialized AsyncFileUtil for this backend. |
- virtual AsyncFileUtil* GetAsyncFileUtil(FileSystemType type) = 0; |
- |
- // Returns the specialized CopyOrMoveFileValidatorFactory for this backend |
- // and |type|. If |error_code| is File::FILE_OK and the result is NULL, |
- // then no validator is required. |
- virtual CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory( |
- FileSystemType type, base::File::Error* error_code) = 0; |
- |
- // Returns a new instance of the specialized FileSystemOperation for this |
- // backend based on the given triplet of |origin_url|, |file_system_type| |
- // and |virtual_path|. On failure to create a file system operation, set |
- // |error_code| correspondingly. |
- // This method is usually dispatched by |
- // FileSystemContext::CreateFileSystemOperation. |
- virtual FileSystemOperation* CreateFileSystemOperation( |
- const FileSystemURL& url, |
- FileSystemContext* context, |
- base::File::Error* error_code) const = 0; |
- |
- // Returns true if Blobs accessing |url| should use FileStreamReader. |
- // If false, Blobs are accessed using a snapshot file by calling |
- // AsyncFileUtil::CreateSnapshotFile. |
- virtual bool SupportsStreaming(const FileSystemURL& url) const = 0; |
- |
- // Creates a new file stream reader for a given filesystem URL |url| with an |
- // offset |offset|. |expected_modification_time| specifies the expected last |
- // modification if the value is non-null, the reader will check the underlying |
- // file's actual modification time to see if the file has been modified, and |
- // if it does any succeeding read operations should fail with |
- // ERR_UPLOAD_FILE_CHANGED error. |
- // This method itself does *not* check if the given path exists and is a |
- // regular file. |
- virtual scoped_ptr<webkit_blob::FileStreamReader> CreateFileStreamReader( |
- const FileSystemURL& url, |
- int64 offset, |
- const base::Time& expected_modification_time, |
- FileSystemContext* context) const = 0; |
- |
- // Creates a new file stream writer for a given filesystem URL |url| with an |
- // offset |offset|. |
- // This method itself does *not* check if the given path exists and is a |
- // regular file. |
- virtual scoped_ptr<FileStreamWriter> CreateFileStreamWriter( |
- const FileSystemURL& url, |
- int64 offset, |
- FileSystemContext* context) const = 0; |
- |
- // Returns the specialized FileSystemQuotaUtil for this backend. |
- // This could return NULL if this backend does not support quota. |
- virtual FileSystemQuotaUtil* GetQuotaUtil() = 0; |
-}; |
- |
-// An interface to control external file system access permissions. |
-// TODO(satorux): Move this out of 'webkit/browser/fileapi'. crbug.com/257279 |
-class ExternalFileSystemBackend : public FileSystemBackend { |
- public: |
- // Returns true if |url| is allowed to be accessed. |
- // This is supposed to perform ExternalFileSystem-specific security |
- // checks. |
- virtual bool IsAccessAllowed(const fileapi::FileSystemURL& url) const = 0; |
- // Returns the list of top level directories that are exposed by this |
- // provider. This list is used to set appropriate child process file access |
- // permissions. |
- virtual std::vector<base::FilePath> GetRootDirectories() const = 0; |
- // Grants access to all external file system from extension identified with |
- // |extension_id|. |
- virtual void GrantFullAccessToExtension(const std::string& extension_id) = 0; |
- // Grants access to |virtual_path| from |origin_url|. |
- virtual void GrantFileAccessToExtension( |
- const std::string& extension_id, |
- const base::FilePath& virtual_path) = 0; |
- // Revokes file access from extension identified with |extension_id|. |
- virtual void RevokeAccessForExtension( |
- const std::string& extension_id) = 0; |
- // Gets virtual path by known filesystem path. Returns false when filesystem |
- // path is not exposed by this provider. |
- virtual bool GetVirtualPath(const base::FilePath& file_system_path, |
- base::FilePath* virtual_path) = 0; |
-}; |
- |
-} // namespace fileapi |
- |
-#endif // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_BACKEND_H_ |