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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// See the corresponding header file for description of the functions in this
// file.
#include "install_util.h"
#include <windows.h>
#include "base/logging.h"
#include "base/registry.h"
#include "base/string_util.h"
#include "chrome/installer/util/google_update_constants.h"
std::wstring InstallUtil::FormatLastWin32Error() {
unsigned messageid = GetLastError();
wchar_t* string_buffer = NULL;
unsigned string_length = ::FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, messageid, 0, reinterpret_cast<wchar_t *>(&string_buffer), 0, NULL);
std::wstring formatted_string;
if (string_buffer) {
formatted_string = string_buffer;
LocalFree(reinterpret_cast<HLOCAL>(string_buffer));
} else {
// The formating failed. simply convert the message value into a string.
SStringPrintf(&formatted_string, L"message number %d", messageid);
}
return formatted_string;
}
std::wstring InstallUtil::GetChromeGoogleUpdateKey() {
std::wstring chrome_google_update_key(google_update::kRegPathClients);
chrome_google_update_key.append(L"\\");
chrome_google_update_key.append(google_update::kChromeGuid);
return chrome_google_update_key;
}
installer::Version* InstallUtil::GetChromeVersion(bool system_install) {
RegKey key;
std::wstring version_str;
HKEY reg_root = (system_install) ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
if (!key.Open(reg_root, GetChromeGoogleUpdateKey().c_str(), KEY_READ) ||
!key.ReadValue(google_update::kRegVersionField, &version_str)) {
LOG(INFO) << "No existing Chrome install found.";
key.Close();
return NULL;
}
key.Close();
LOG(INFO) << "Existing Chrome version found " << version_str;
return installer::Version::GetVersionFromString(version_str);
}
std::wstring InstallUtil::GetNewGoogleUpdateApKey(bool diff_install,
installer_util::InstallStatus status, const std::wstring& value) {
// Magic suffix that we need to add or remove to "ap" key value.
const std::wstring kMagicSuffix = L"-full";
bool has_magic_string = false;
if ((value.length() >= kMagicSuffix.length()) &&
(value.rfind(kMagicSuffix) == (value.length() - kMagicSuffix.length()))) {
LOG(INFO) << "Incremental installer failure key already set.";
has_magic_string = true;
}
std::wstring new_value(value);
if ((!diff_install || InstallSuccessful(status)) && has_magic_string) {
LOG(INFO) << "Removing failure key from value " << value;
new_value = value.substr(0, value.length() - kMagicSuffix.length());
} else if ((diff_install && !InstallSuccessful(status)) &&
!has_magic_string) {
LOG(INFO) << "Incremental installer failed, setting failure key.";
new_value.append(kMagicSuffix);
}
return new_value;
}
bool InstallUtil::InstallSuccessful(installer_util::InstallStatus status) {
switch (status) {
case installer_util::FIRST_INSTALL_SUCCESS:
case installer_util::INSTALL_REPAIRED:
case installer_util::NEW_VERSION_UPDATED:
case installer_util::HIGHER_VERSION_EXISTS:
return true;
default:
return false;
}
}
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