| // 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/browser/fileapi/local_file_util.h" |
| |
| #include "base/file_util.h" |
| #include "base/files/file_enumerator.h" |
| #include "base/files/file_util_proxy.h" |
| #include "googleurl/src/gurl.h" |
| #include "webkit/browser/fileapi/file_system_context.h" |
| #include "webkit/browser/fileapi/file_system_operation_context.h" |
| #include "webkit/browser/fileapi/file_system_url.h" |
| #include "webkit/browser/fileapi/native_file_util.h" |
| #include "webkit/common/fileapi/file_system_types.h" |
| #include "webkit/common/fileapi/file_system_util.h" |
| |
| namespace fileapi { |
| |
| using base::PlatformFileError; |
| |
| class LocalFileEnumerator : public FileSystemFileUtil::AbstractFileEnumerator { |
| public: |
| LocalFileEnumerator(const base::FilePath& platform_root_path, |
| const base::FilePath& virtual_root_path, |
| int file_type) |
| : file_enum_(platform_root_path, false /* recursive */, file_type), |
| platform_root_path_(platform_root_path), |
| virtual_root_path_(virtual_root_path) { |
| } |
| |
| virtual ~LocalFileEnumerator() {} |
| |
| virtual base::FilePath Next() OVERRIDE; |
| virtual int64 Size() OVERRIDE; |
| virtual base::Time LastModifiedTime() OVERRIDE; |
| virtual bool IsDirectory() OVERRIDE; |
| |
| private: |
| base::FileEnumerator file_enum_; |
| base::FileEnumerator::FileInfo file_util_info_; |
| base::FilePath platform_root_path_; |
| base::FilePath virtual_root_path_; |
| }; |
| |
| base::FilePath LocalFileEnumerator::Next() { |
| base::FilePath next = file_enum_.Next(); |
| // Don't return symlinks. |
| while (!next.empty() && file_util::IsLink(next)) |
| next = file_enum_.Next(); |
| if (next.empty()) |
| return next; |
| file_util_info_ = file_enum_.GetInfo(); |
| |
| base::FilePath path; |
| platform_root_path_.AppendRelativePath(next, &path); |
| return virtual_root_path_.Append(path); |
| } |
| |
| int64 LocalFileEnumerator::Size() { |
| return file_util_info_.GetSize(); |
| } |
| |
| base::Time LocalFileEnumerator::LastModifiedTime() { |
| return file_util_info_.GetLastModifiedTime(); |
| } |
| |
| bool LocalFileEnumerator::IsDirectory() { |
| return file_util_info_.IsDirectory(); |
| } |
| |
| LocalFileUtil::LocalFileUtil() { |
| } |
| |
| LocalFileUtil::~LocalFileUtil() { |
| } |
| |
| PlatformFileError LocalFileUtil::CreateOrOpen( |
| FileSystemOperationContext* context, |
| const FileSystemURL& url, int file_flags, |
| base::PlatformFile* file_handle, bool* created) { |
| *created = false; |
| base::FilePath file_path; |
| PlatformFileError error = GetLocalFilePath(context, url, &file_path); |
| if (error != base::PLATFORM_FILE_OK) |
| return error; |
| // Disallow opening files in symlinked paths. |
| if (file_util::IsLink(file_path)) |
| return base::PLATFORM_FILE_ERROR_NOT_FOUND; |
| return NativeFileUtil::CreateOrOpen( |
| file_path, file_flags, file_handle, created); |
| } |
| |
| PlatformFileError LocalFileUtil::Close(FileSystemOperationContext* context, |
| base::PlatformFile file) { |
| return NativeFileUtil::Close(file); |
| } |
| |
| PlatformFileError LocalFileUtil::EnsureFileExists( |
| FileSystemOperationContext* context, |
| const FileSystemURL& url, |
| bool* created) { |
| base::FilePath file_path; |
| PlatformFileError error = GetLocalFilePath(context, url, &file_path); |
| if (error != base::PLATFORM_FILE_OK) |
| return error; |
| return NativeFileUtil::EnsureFileExists(file_path, created); |
| } |
| |
| PlatformFileError LocalFileUtil::CreateDirectory( |
| FileSystemOperationContext* context, |
| const FileSystemURL& url, |
| bool exclusive, |
| bool recursive) { |
| base::FilePath file_path; |
| PlatformFileError error = GetLocalFilePath(context, url, &file_path); |
| if (error != base::PLATFORM_FILE_OK) |
| return error; |
| return NativeFileUtil::CreateDirectory(file_path, exclusive, recursive); |
| } |
| |
| PlatformFileError LocalFileUtil::GetFileInfo( |
| FileSystemOperationContext* context, |
| const FileSystemURL& url, |
| base::PlatformFileInfo* file_info, |
| base::FilePath* platform_file_path) { |
| base::FilePath file_path; |
| PlatformFileError error = GetLocalFilePath(context, url, &file_path); |
| if (error != base::PLATFORM_FILE_OK) |
| return error; |
| // We should not follow symbolic links in sandboxed file system. |
| if (file_util::IsLink(file_path)) |
| return base::PLATFORM_FILE_ERROR_NOT_FOUND; |
| error = NativeFileUtil::GetFileInfo(file_path, file_info); |
| if (error == base::PLATFORM_FILE_OK) |
| *platform_file_path = file_path; |
| return error; |
| } |
| |
| scoped_ptr<FileSystemFileUtil::AbstractFileEnumerator> LocalFileUtil:: |
| CreateFileEnumerator( |
| FileSystemOperationContext* context, |
| const FileSystemURL& root_url) { |
| base::FilePath file_path; |
| if (GetLocalFilePath(context, root_url, &file_path) != |
| base::PLATFORM_FILE_OK) { |
| return make_scoped_ptr(new EmptyFileEnumerator) |
| .PassAs<FileSystemFileUtil::AbstractFileEnumerator>(); |
| } |
| return make_scoped_ptr(new LocalFileEnumerator( |
| file_path, root_url.path(), |
| base::FileEnumerator::FILES | base::FileEnumerator::DIRECTORIES)) |
| .PassAs<FileSystemFileUtil::AbstractFileEnumerator>(); |
| } |
| |
| PlatformFileError LocalFileUtil::GetLocalFilePath( |
| FileSystemOperationContext* context, |
| const FileSystemURL& url, |
| base::FilePath* local_file_path) { |
| base::FilePath root = context->root_path(); |
| if (root.empty()) |
| return base::PLATFORM_FILE_ERROR_NOT_FOUND; |
| *local_file_path = root.Append(url.path()); |
| return base::PLATFORM_FILE_OK; |
| } |
| |
| PlatformFileError LocalFileUtil::Touch( |
| FileSystemOperationContext* context, |
| const FileSystemURL& url, |
| const base::Time& last_access_time, |
| const base::Time& last_modified_time) { |
| base::FilePath file_path; |
| PlatformFileError error = GetLocalFilePath(context, url, &file_path); |
| if (error != base::PLATFORM_FILE_OK) |
| return error; |
| return NativeFileUtil::Touch(file_path, last_access_time, last_modified_time); |
| } |
| |
| PlatformFileError LocalFileUtil::Truncate( |
| FileSystemOperationContext* context, |
| const FileSystemURL& url, |
| int64 length) { |
| base::FilePath file_path; |
| PlatformFileError error = GetLocalFilePath(context, url, &file_path); |
| if (error != base::PLATFORM_FILE_OK) |
| return error; |
| return NativeFileUtil::Truncate(file_path, length); |
| } |
| |
| PlatformFileError LocalFileUtil::CopyOrMoveFile( |
| FileSystemOperationContext* context, |
| const FileSystemURL& src_url, |
| const FileSystemURL& dest_url, |
| bool copy) { |
| base::FilePath src_file_path; |
| PlatformFileError error = GetLocalFilePath(context, src_url, &src_file_path); |
| if (error != base::PLATFORM_FILE_OK) |
| return error; |
| |
| base::FilePath dest_file_path; |
| error = GetLocalFilePath(context, dest_url, &dest_file_path); |
| if (error != base::PLATFORM_FILE_OK) |
| return error; |
| |
| return NativeFileUtil::CopyOrMoveFile(src_file_path, dest_file_path, copy); |
| } |
| |
| PlatformFileError LocalFileUtil::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 = |
| GetLocalFilePath(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 LocalFileUtil::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; |
| return NativeFileUtil::DeleteFile(file_path); |
| } |
| |
| PlatformFileError LocalFileUtil::DeleteDirectory( |
| FileSystemOperationContext* context, |
| const FileSystemURL& url) { |
| base::FilePath file_path; |
| PlatformFileError error = GetLocalFilePath(context, url, &file_path); |
| if (error != base::PLATFORM_FILE_OK) |
| return error; |
| return NativeFileUtil::DeleteDirectory(file_path); |
| } |
| |
| webkit_blob::ScopedFile LocalFileUtil::CreateSnapshotFile( |
| FileSystemOperationContext* context, |
| const FileSystemURL& url, |
| base::PlatformFileError* error, |
| base::PlatformFileInfo* file_info, |
| base::FilePath* platform_path) { |
| DCHECK(file_info); |
| // We're just returning the local file information. |
| *error = GetFileInfo(context, url, file_info, platform_path); |
| if (*error == base::PLATFORM_FILE_OK && file_info->is_directory) |
| *error = base::PLATFORM_FILE_ERROR_NOT_A_FILE; |
| return webkit_blob::ScopedFile(); |
| } |
| |
| } // namespace fileapi |