src/chrome/browser/chromeos/file_system_provider/operations/get_metadata.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chromeos/file_system_provider/operations/get_metadata.h"
   6
   7 #include <string>
   8
   9 #include "chrome/common/extensions/api/file_system_provider.h"
  10 #include "chrome/common/extensions/api/file_system_provider_internal.h"
  11
  12 namespace chromeos {
  13 namespace file_system_provider {
  14 namespace operations {
  15 namespace {
  16
  17 // Convert |value| into |output|. If parsing fails, then returns false.
  18 bool ConvertRequestValueToFileInfo(scoped_ptr<RequestValue> value,
  19                                    base::File::Info* output) {
  20   using extensions::api::file_system_provider::EntryMetadata;
  21   using extensions::api::file_system_provider_internal::
  22       GetMetadataRequestedSuccess::Params;
  23
  24   const Params* params = value->get_metadata_success_params();
  25   if (!params)
  26     return false;
  27
  28   output->is_directory = params->metadata.is_directory;
  29   output->size = static_cast<int64>(params->metadata.size);
  30   output->is_symbolic_link = false;  // Not supported.
  31
  32   std::string input_modification_time;
  33   if (!params->metadata.modification_time.additional_properties.GetString(
  34           "value", &input_modification_time)) {
  35     return false;
  36   }
  37   if (!base::Time::FromString(input_modification_time.c_str(),
  38                               &output->last_modified)) {
  39     return false;
  40   }
  41
  42   return true;
  43 }
  44
  45 }  // namespace
  46
  47 GetMetadata::GetMetadata(
  48     extensions::EventRouter* event_router,
  49     const ProvidedFileSystemInfo& file_system_info,
  50     const base::FilePath& directory_path,
  51     const fileapi::AsyncFileUtil::GetFileInfoCallback& callback)
  52     : Operation(event_router, file_system_info),
  53       directory_path_(directory_path),
  54       callback_(callback) {
  55 }
  56
  57 GetMetadata::~GetMetadata() {
  58 }
  59
  60 bool GetMetadata::Execute(int request_id) {
  61   scoped_ptr<base::ListValue> values(new base::ListValue);
  62   values->AppendString(directory_path_.AsUTF8Unsafe());
  63   return SendEvent(
  64       request_id,
  65       extensions::api::file_system_provider::OnGetMetadataRequested::kEventName,
  66       values.Pass());
  67 }
  68
  69 void GetMetadata::OnSuccess(int /* request_id */,
  70                             scoped_ptr<RequestValue> result,
  71                             bool has_next) {
  72   base::File::Info file_info;
  73   const bool convert_result =
  74       ConvertRequestValueToFileInfo(result.Pass(), &file_info);
  75   DCHECK(convert_result);
  76   callback_.Run(base::File::FILE_OK, file_info);
  77 }
  78
  79 void GetMetadata::OnError(int /* request_id */, base::File::Error error) {
  80   callback_.Run(error, base::File::Info());
  81 }
  82
  83 }  // namespace operations
  84 }  // namespace file_system_provider
  85 }  // namespace chromeos