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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.
#include "webkit/fileapi/media/native_media_file_util.h"
#include "webkit/fileapi/file_system_operation_context.h"
#include "webkit/fileapi/media/media_path_filter.h"
#include "webkit/fileapi/media/filtering_file_enumerator.h"
#include "webkit/fileapi/native_file_util.h"
using base::PlatformFile;
using base::PlatformFileError;
using base::PlatformFileInfo;
namespace fileapi {
NativeMediaFileUtil::NativeMediaFileUtil() {
}
PlatformFileError NativeMediaFileUtil::CreateOrOpen(
FileSystemOperationContext* context,
const FileSystemURL& url,
int file_flags,
PlatformFile* file_handle,
bool* created) {
// Only called by NaCl, which should not have access to media file systems.
return base::PLATFORM_FILE_ERROR_SECURITY;
}
PlatformFileError NativeMediaFileUtil::EnsureFileExists(
FileSystemOperationContext* context,
const FileSystemURL& url, bool* created) {
base::FilePath file_path;
PlatformFileError error = GetFilteredLocalFilePath(context, url, &file_path);
if (error != base::PLATFORM_FILE_OK)
return error;
return NativeFileUtil::EnsureFileExists(file_path, created);
}
scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator>
NativeMediaFileUtil::CreateFileEnumerator(
FileSystemOperationContext* context,
const FileSystemURL& root_url,
bool recursive) {
DCHECK(context);
return make_scoped_ptr(new FilteringFileEnumerator(
IsolatedFileUtil::CreateFileEnumerator(context, root_url, recursive),
context->media_path_filter()))
.PassAs<FileSystemFileUtil::AbstractFileEnumerator>();
}
PlatformFileError NativeMediaFileUtil::Touch(
FileSystemOperationContext* context,
const FileSystemURL& url,
const base::Time& last_access_time,
const base::Time& last_modified_time) {
base::FilePath file_path;
PlatformFileError error = GetFilteredLocalFilePathForExistingFileOrDirectory(
context,
url,
// Touch fails for non-existent paths and filtered paths.
base::PLATFORM_FILE_ERROR_FAILED,
&file_path);
if (error != base::PLATFORM_FILE_OK)
return error;
return NativeFileUtil::Touch(file_path, last_access_time, last_modified_time);
}
PlatformFileError NativeMediaFileUtil::Truncate(
FileSystemOperationContext* context,
const FileSystemURL& url,
int64 length) {
base::FilePath file_path;
PlatformFileError error = GetFilteredLocalFilePathForExistingFileOrDirectory(
context,
url,
// Cannot truncate paths that do not exist, or are filtered.
base::PLATFORM_FILE_ERROR_NOT_FOUND,
&file_path);
if (error != base::PLATFORM_FILE_OK)
return error;
return NativeFileUtil::Truncate(file_path, length);
}
PlatformFileError NativeMediaFileUtil::CopyOrMoveFile(
FileSystemOperationContext* context,
const FileSystemURL& src_url,
const FileSystemURL& dest_url,
bool copy) {
base::FilePath src_file_path;
PlatformFileError error =
GetFilteredLocalFilePathForExistingFileOrDirectory(
context, src_url,
base::PLATFORM_FILE_ERROR_NOT_FOUND,
&src_file_path);
if (error != base::PLATFORM_FILE_OK)
return error;
if (NativeFileUtil::DirectoryExists(src_file_path))
return base::PLATFORM_FILE_ERROR_NOT_A_FILE;
base::FilePath dest_file_path;
error = GetLocalFilePath(context, dest_url, &dest_file_path);
if (error != base::PLATFORM_FILE_OK)
return error;
PlatformFileInfo file_info;
error = NativeFileUtil::GetFileInfo(dest_file_path, &file_info);
if (error != base::PLATFORM_FILE_OK &&
error != base::PLATFORM_FILE_ERROR_NOT_FOUND)
return error;
if (error == base::PLATFORM_FILE_OK && file_info.is_directory)
return base::PLATFORM_FILE_ERROR_INVALID_OPERATION;
if (!context->media_path_filter()->Match(dest_file_path))
return base::PLATFORM_FILE_ERROR_SECURITY;
return NativeFileUtil::CopyOrMoveFile(src_file_path, dest_file_path, copy);
}
PlatformFileError NativeMediaFileUtil::CopyInForeignFile(
FileSystemOperationContext* context,
const base::FilePath& src_file_path,
const FileSystemURL& dest_url) {
if (src_file_path.empty())
return base::PLATFORM_FILE_ERROR_INVALID_OPERATION;
base::FilePath dest_file_path;
PlatformFileError error =
GetFilteredLocalFilePath(context, dest_url, &dest_file_path);
if (error != base::PLATFORM_FILE_OK)
return error;
return NativeFileUtil::CopyOrMoveFile(src_file_path, dest_file_path, true);
}
PlatformFileError NativeMediaFileUtil::DeleteFile(
FileSystemOperationContext* context,
const FileSystemURL& url) {
base::FilePath file_path;
PlatformFileError error = GetLocalFilePath(context, url, &file_path);
if (error != base::PLATFORM_FILE_OK)
return error;
PlatformFileInfo file_info;
error = NativeFileUtil::GetFileInfo(file_path, &file_info);
if (error != base::PLATFORM_FILE_OK)
return error;
if (file_info.is_directory)
return base::PLATFORM_FILE_ERROR_NOT_A_FILE;
if (!context->media_path_filter()->Match(file_path))
return base::PLATFORM_FILE_ERROR_NOT_FOUND;
return NativeFileUtil::DeleteFile(file_path);
}
PlatformFileError NativeMediaFileUtil::GetFileInfo(
FileSystemOperationContext* context,
const FileSystemURL& url,
PlatformFileInfo* file_info,
base::FilePath* platform_path) {
DCHECK(context);
DCHECK(context->media_path_filter());
DCHECK(file_info);
DCHECK(platform_path);
base::PlatformFileError error =
IsolatedFileUtil::GetFileInfo(context, url, file_info, platform_path);
if (error != base::PLATFORM_FILE_OK)
return error;
if (file_info->is_directory ||
context->media_path_filter()->Match(*platform_path)) {
return base::PLATFORM_FILE_OK;
}
return base::PLATFORM_FILE_ERROR_NOT_FOUND;
}
PlatformFileError NativeMediaFileUtil::GetFilteredLocalFilePath(
FileSystemOperationContext* context,
const FileSystemURL& file_system_url,
base::FilePath* local_file_path) {
base::FilePath file_path;
PlatformFileError error =
IsolatedFileUtil::GetLocalFilePath(context, file_system_url, &file_path);
if (error != base::PLATFORM_FILE_OK)
return error;
if (!context->media_path_filter()->Match(file_path))
return base::PLATFORM_FILE_ERROR_SECURITY;
*local_file_path = file_path;
return base::PLATFORM_FILE_OK;
}
PlatformFileError
NativeMediaFileUtil::GetFilteredLocalFilePathForExistingFileOrDirectory(
FileSystemOperationContext* context,
const FileSystemURL& file_system_url,
PlatformFileError failure_error,
base::FilePath* local_file_path) {
base::FilePath file_path;
PlatformFileError error =
GetLocalFilePath(context, file_system_url, &file_path);
if (error != base::PLATFORM_FILE_OK)
return error;
if (!file_util::PathExists(file_path))
return failure_error;
PlatformFileInfo file_info;
if (!file_util::GetFileInfo(file_path, &file_info))
return base::PLATFORM_FILE_ERROR_FAILED;
if (!file_info.is_directory &&
!context->media_path_filter()->Match(file_path)) {
return failure_error;
}
*local_file_path = file_path;
return base::PLATFORM_FILE_OK;
}
} // namespace fileapi
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