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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 "chrome/browser/download/download_prefs.h"
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/string_split.h"
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/download/chrome_download_manager_delegate.h"
#include "chrome/browser/download/download_extensions.h"
#include "chrome/browser/download/download_service.h"
#include "chrome/browser/download/download_service_factory.h"
#include "chrome/browser/download/download_util.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/save_page_type.h"
#if defined(OS_CHROMEOS)
#include "chrome/browser/chromeos/drive/drive_file_system_util.h"
#include "chrome/browser/chromeos/drive/drive_system_service.h"
#endif
using content::BrowserContext;
using content::BrowserThread;
using content::DownloadManager;
DownloadPrefs::DownloadPrefs(Profile* profile) : profile_(profile) {
PrefService* prefs = profile->GetPrefs();
prompt_for_download_.Init(prefs::kPromptForDownload, prefs);
download_path_.Init(prefs::kDownloadDefaultDirectory, prefs);
save_file_type_.Init(prefs::kSaveFileType, prefs);
// We store any file extension that should be opened automatically at
// download completion in this pref.
std::string extensions_to_open =
prefs->GetString(prefs::kDownloadExtensionsToOpen);
std::vector<std::string> extensions;
base::SplitString(extensions_to_open, ':', &extensions);
for (size_t i = 0; i < extensions.size(); ++i) {
#if defined(OS_POSIX)
FilePath path(extensions[i]);
#elif defined(OS_WIN)
FilePath path(UTF8ToWide(extensions[i]));
#endif
if (!extensions[i].empty() &&
download_util::GetFileDangerLevel(path) == download_util::NotDangerous)
auto_open_.insert(path.value());
}
}
DownloadPrefs::~DownloadPrefs() {
SaveAutoOpenState();
}
// static
void DownloadPrefs::RegisterUserPrefs(PrefServiceSyncable* prefs) {
prefs->RegisterBooleanPref(prefs::kPromptForDownload,
false,
PrefServiceSyncable::SYNCABLE_PREF);
prefs->RegisterStringPref(prefs::kDownloadExtensionsToOpen,
"",
PrefServiceSyncable::UNSYNCABLE_PREF);
prefs->RegisterBooleanPref(prefs::kDownloadDirUpgraded,
false,
PrefServiceSyncable::UNSYNCABLE_PREF);
prefs->RegisterIntegerPref(prefs::kSaveFileType,
content::SAVE_PAGE_TYPE_AS_COMPLETE_HTML,
PrefServiceSyncable::UNSYNCABLE_PREF);
// The default download path is userprofile\download.
const FilePath& default_download_path =
download_util::GetDefaultDownloadDirectory();
prefs->RegisterFilePathPref(prefs::kDownloadDefaultDirectory,
default_download_path,
PrefServiceSyncable::UNSYNCABLE_PREF);
#if defined(OS_CHROMEOS)
// Ensure that the download directory specified in the preferences exists.
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
base::Bind(base::IgnoreResult(&file_util::CreateDirectory),
default_download_path));
#endif // defined(OS_CHROMEOS)
// If the download path is dangerous we forcefully reset it. But if we do
// so we set a flag to make sure we only do it once, to avoid fighting
// the user if he really wants it on an unsafe place such as the desktop.
if (!prefs->GetBoolean(prefs::kDownloadDirUpgraded)) {
FilePath current_download_dir = prefs->GetFilePath(
prefs::kDownloadDefaultDirectory);
if (download_util::DownloadPathIsDangerous(current_download_dir)) {
prefs->SetFilePath(prefs::kDownloadDefaultDirectory,
default_download_path);
}
prefs->SetBoolean(prefs::kDownloadDirUpgraded, true);
}
}
// static
DownloadPrefs* DownloadPrefs::FromDownloadManager(
DownloadManager* download_manager) {
ChromeDownloadManagerDelegate* delegate =
static_cast<ChromeDownloadManagerDelegate*>(
download_manager->GetDelegate());
return delegate->download_prefs();
}
// static
DownloadPrefs* DownloadPrefs::FromBrowserContext(
content::BrowserContext* context) {
return FromDownloadManager(BrowserContext::GetDownloadManager(context));
}
FilePath DownloadPrefs::DownloadPath() const {
#if defined(OS_CHROMEOS)
// If the download path is under /drive, and DriveSystemService isn't
// available (which it isn't for incognito mode, for instance), use the
// default download directory (/Downloads).
if (drive::util::IsUnderDriveMountPoint(*download_path_) &&
!drive::DriveSystemServiceFactory::GetForProfile(profile_))
return download_util::GetDefaultDownloadDirectory();
#endif
return *download_path_;
}
bool DownloadPrefs::PromptForDownload() const {
// If the DownloadDirectory policy is set, then |prompt_for_download_| should
// always be false.
DCHECK(!download_path_.IsManaged() || !prompt_for_download_.GetValue());
return *prompt_for_download_;
}
bool DownloadPrefs::IsDownloadPathManaged() const {
return download_path_.IsManaged();
}
bool DownloadPrefs::IsAutoOpenUsed() const {
return !auto_open_.empty();
}
bool DownloadPrefs::IsAutoOpenEnabledForExtension(
const FilePath::StringType& extension) const {
return auto_open_.find(extension) != auto_open_.end();
}
bool DownloadPrefs::EnableAutoOpenBasedOnExtension(const FilePath& file_name) {
FilePath::StringType extension = file_name.Extension();
if (extension.empty())
return false;
DCHECK(extension[0] == FilePath::kExtensionSeparator);
extension.erase(0, 1);
auto_open_.insert(extension);
SaveAutoOpenState();
return true;
}
void DownloadPrefs::DisableAutoOpenBasedOnExtension(const FilePath& file_name) {
FilePath::StringType extension = file_name.Extension();
if (extension.empty())
return;
DCHECK(extension[0] == FilePath::kExtensionSeparator);
extension.erase(0, 1);
auto_open_.erase(extension);
SaveAutoOpenState();
}
void DownloadPrefs::ResetAutoOpen() {
auto_open_.clear();
SaveAutoOpenState();
}
void DownloadPrefs::SaveAutoOpenState() {
std::string extensions;
for (AutoOpenSet::iterator it = auto_open_.begin();
it != auto_open_.end(); ++it) {
#if defined(OS_POSIX)
std::string this_extension = *it;
#elif defined(OS_WIN)
// TODO(phajdan.jr): Why we're using Sys conversion here, but not in ctor?
std::string this_extension = base::SysWideToUTF8(*it);
#endif
extensions += this_extension + ":";
}
if (!extensions.empty())
extensions.erase(extensions.size() - 1);
profile_->GetPrefs()->SetString(prefs::kDownloadExtensionsToOpen, extensions);
}
bool DownloadPrefs::AutoOpenCompareFunctor::operator()(
const FilePath::StringType& a,
const FilePath::StringType& b) const {
return FilePath::CompareLessIgnoreCase(a, b);
}
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