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// Copyright (c) 2009 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/installer/util/google_update_settings.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/rand_util.h"
#include "base/string_util.h"
#include "chrome/common/chrome_paths.h"
#if !defined(OS_MACOSX)
namespace google_update {
std::string linux_guid;
}
#endif // !OS_MACOSX
// File name used in the user data dir to indicate consent.
static const char kConsentToSendStats[] = "Consent To Send Stats";
static const int kGuidLen = sizeof(uint64) * 4; // 128 bits -> 32 bytes hex.
// static
bool GoogleUpdateSettings::GetCollectStatsConsent() {
#if defined(OS_MACOSX)
std::string linux_guid;
#else
using google_update::linux_guid;
#endif // OS_MACOSX
FilePath consent_file;
PathService::Get(chrome::DIR_USER_DATA, &consent_file);
consent_file = consent_file.Append(kConsentToSendStats);
bool r = file_util::ReadFileToString(consent_file,
&linux_guid);
linux_guid.resize(kGuidLen, '0');
return r;
}
// static
bool GoogleUpdateSettings::SetCollectStatsConsent(bool consented) {
#if defined(OS_MACOSX)
std::string linux_guid;
#else
using google_update::linux_guid;
#endif // OS_MACOSX
FilePath consent_dir;
PathService::Get(chrome::DIR_USER_DATA, &consent_dir);
if (!file_util::DirectoryExists(consent_dir))
return false;
FilePath consent_file = consent_dir.AppendASCII(kConsentToSendStats);
if (consented) {
uint64 random;
linux_guid.clear();
for (int i = 0; i < 2; i++) {
random = base::RandUint64();
linux_guid += HexEncode(&random, sizeof(uint64));
}
const char* c_str = linux_guid.c_str();
return file_util::WriteFile(consent_file, c_str, kGuidLen) == kGuidLen;
}
else {
linux_guid .clear();
linux_guid.resize(kGuidLen, '0');
return file_util::Delete(consent_file, false);
}
}
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