chrome/browser/download/download_dir_policy_handler.cc

// Copyright 2013 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 "chrome/browser/download/download_dir_policy_handler.h"

#include "base/files/file_path.h"
#include "base/memory/scoped_ptr.h"
#include "base/prefs/pref_value_map.h"
#include "base/values.h"
#include "chrome/browser/download/download_prefs.h"
#include "chrome/browser/policy/policy_map.h"
#include "chrome/browser/policy/policy_path_parser.h"
#include "chrome/common/pref_names.h"
#include "policy/policy_constants.h"

DownloadDirPolicyHandler::DownloadDirPolicyHandler()
    : TypeCheckingPolicyHandler(policy::key::kDownloadDirectory,
                                base::Value::TYPE_STRING) {}

DownloadDirPolicyHandler::~DownloadDirPolicyHandler() {}

void DownloadDirPolicyHandler::ApplyPolicySettings(
    const policy::PolicyMap& policies,
    PrefValueMap* prefs) {
  const base::Value* value = policies.GetValue(policy_name());
  base::FilePath::StringType string_value;
  if (!value || !value->GetAsString(&string_value))
    return;

  base::FilePath::StringType expanded_value =
      policy::path_parser::ExpandPathVariables(string_value);
  // Make sure the path isn't empty, since that will point to an undefined
  // location; the default location is used instead in that case.
  // This is checked after path expansion because a non-empty policy value can
  // lead to an empty path value after expansion (e.g. "\"\"").
  if (expanded_value.empty())
    expanded_value = DownloadPrefs::GetDefaultDownloadDirectory().value();
  prefs->SetValue(prefs::kDownloadDefaultDirectory,
                  Value::CreateStringValue(expanded_value));
  prefs->SetValue(prefs::kPromptForDownload,
                  Value::CreateBooleanValue(false));
}