blob: bdd620b79078a8d6025e62d1a9a97ccf8c5ffbbe [file] [log] [blame]
// Copyright (c) 2010 The Chromium OS 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 "update_engine/prefs.h"
#include <base/file_util.h>
#include <base/logging.h>
#include <base/string_number_conversions.h>
#include <base/string_util.h>
#include "update_engine/utils.h"
using std::string;
namespace chromeos_update_engine {
const char kPrefsDeltaUpdateFailures[] = "delta-update-failures";
const char kPrefsLastActivePingDay[] = "last-active-ping-day";
const char kPrefsLastRollCallPingDay[] = "last-roll-call-ping-day";
const char kPrefsManifestMetadataSize[] = "manifest-metadata-size";
const char kPrefsResumedUpdateFailures[] = "resumed-update-failures";
const char kPrefsUpdateCheckResponseHash[] = "update-check-response-hash";
const char kPrefsUpdateStateNextDataOffset[] = "update-state-next-data-offset";
const char kPrefsUpdateStateNextOperation[] = "update-state-next-operation";
const char kPrefsUpdateStateSHA256Context[] = "update-state-sha-256-context";
const char kPrefsUpdateStateSignedSHA256Context[] =
"update-state-signed-sha-256-context";
bool Prefs::Init(const FilePath& prefs_dir) {
prefs_dir_ = prefs_dir;
return true;
}
bool Prefs::GetString(const string& key, string* value) {
FilePath filename;
TEST_AND_RETURN_FALSE(GetFileNameForKey(key, &filename));
TEST_AND_RETURN_FALSE(file_util::ReadFileToString(filename, value));
return true;
}
bool Prefs::SetString(const std::string& key, const std::string& value) {
FilePath filename;
TEST_AND_RETURN_FALSE(GetFileNameForKey(key, &filename));
TEST_AND_RETURN_FALSE(file_util::CreateDirectory(filename.DirName()));
TEST_AND_RETURN_FALSE(
file_util::WriteFile(filename, value.data(), value.size()) ==
static_cast<int>(value.size()));
return true;
}
bool Prefs::GetInt64(const string& key, int64_t* value) {
string str_value;
TEST_AND_RETURN_FALSE(GetString(key, &str_value));
TrimWhitespaceASCII(str_value, TRIM_ALL, &str_value);
TEST_AND_RETURN_FALSE(base::StringToInt64(str_value, value));
return true;
}
bool Prefs::SetInt64(const string& key, const int64_t value) {
return SetString(key, base::Int64ToString(value));
}
bool Prefs::GetFileNameForKey(const std::string& key, FilePath* filename) {
// Allows only non-empty keys containing [A-Za-z0-9_-].
TEST_AND_RETURN_FALSE(!key.empty());
for (size_t i = 0; i < key.size(); ++i) {
char c = key.at(i);
TEST_AND_RETURN_FALSE(IsAsciiAlpha(c) || IsAsciiDigit(c) ||
c == '_' || c == '-');
}
*filename = prefs_dir_.Append(key);
return true;
}
} // namespace chromeos_update_engine