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@@ -0,0 +1,183 @@
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+<?php defined('BX_DOL') or die('hack attempt');
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+/**
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+ * Copyright (c) BoonEx Pty Limited - http://www.boonex.com/
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+ * CC-BY License - http://creativecommons.org/licenses/by/3.0/
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+ *
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+ * @defgroup DolphinCore Dolphin Core
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+ * @{
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+ */
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+
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+class BxDolUpgrader extends BxDol
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+{
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+ protected $_sUrlVersionCheck = 'http://rss.boonex.com/u/';
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+ protected $_sError = false;
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+
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+ public function prepare()
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+ {
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+ $this->setError(false);
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+ $iUmaskSave = umask(0);
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+
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+ while(true) {
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+
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+ $aVersionUpdateInfo = $this->getVersionUpdateInfo();
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+ if (null === $aVersionUpdateInfo) {
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+ $this->setError(_t('_sys_upgrade_get_version_info_failed'));
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+ break;
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+ }
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+
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+ if (!$this->isUpgradeAvailable($aVersionUpdateInfo))
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+ break;
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+
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+ // TODO: check db version and files version (files version file need to be added)
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+
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+ // TODO: add setting opton to force update even if some of the files were modified (3%-5%)
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+ $aFailedFiles = $this->checkFilesChecksums ();
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+ if (!empty($aFailedFiles)) {
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+ $this->setError(_t('_sys_upgrade_files_checksum_failed', implode(',', $aFailedFiles)));
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+ break;
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+ }
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+
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+ if (!($sPatchPath = $this->downloadPatch ($aVersionUpdateInfo))) {
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+ $this->setError(_t('_sys_upgrade_patch_download_failed'));
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+ break;
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+ }
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+
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+ if (!$this->isPatchChecksumCorrect ($sPatchPath, $aVersionUpdateInfo)) {
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+ $this->deleteUpgradePatch($sPatchPath);
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+ $this->setError(_t('_sys_upgrade_patch_checksum_failed'));
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+ break;
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+ }
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+
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+ if (!($sUnpackedPath = $this->unpackPatch ($sPatchPath, true))) {
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+ $this->deleteUpgradePatch($sPatchPath);
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+ $this->setError(_t('_sys_upgrade_patch_unpack_failed'));
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+ break;
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+ }
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+
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+ $this->deleteUpgradePatch($sPatchPath);
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+
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+ if (!$this->isValidPatch ($sUnpackedPath, $aVersionUpdateInfo)) {
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+ $this->deleteUpgradeFolder($sPatchPath);
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+ $this->setError(_t('_sys_upgrade_patch_invalid'));
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+ break;
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+ }
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+
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+ break;
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+ }
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+
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+ umask($iUmaskSave);
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+
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+ // TODO: check error and set transient cron for the real update of files and db!
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+
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+ echo 'Err:' . $this->getError() . "\n";
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+ }
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+
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+ public function getVersionUpdateInfo ()
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+ {
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+ $s = bx_file_get_contents($this->_sUrlVersionCheck, array ('v' => bx_get_ver()));
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+ if (!$s)
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+ return null;
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+
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+ $a = json_decode($s, true);
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+ if (!isset($a['latest_version']))
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+ return null;
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+
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+ return $a;
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+ }
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+
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+ public function isUpgradeAvailable ($a)
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+ {
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+ if (1 == version_compare(strtolower($a['latest_version']), strtolower(bx_get_ver())) && isset($a['patch']))
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+ return true;
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+ return false;
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+ }
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+
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+ protected function downloadPatch ($a)
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+ {
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+ if (!isset($a['patch']['url']))
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+ return false;
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+
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+ if (!($f = fopen($a['patch']['url'], "rb")))
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+ return false;
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+
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+ $sTmpFile = BX_DIRECTORY_PATH_TMP . 'patch_' . bx_get_ver() . '_' . $a['patch']['ver'] . '.zip';
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+ if (file_exists($sTmpFile) && !unlink($sTmpFile))
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+ return false;
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+
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+ $sRet = false;
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+ if (false !== $sTmpFile && false !== file_put_contents($sTmpFile, $f))
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+ $sRet = $sTmpFile;
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+
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+ fclose($f);
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+
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+ return $sRet;
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+ }
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+
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+ protected function isPatchChecksumCorrect ($sPatchPath, $aVersionUpdateInfo)
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+ {
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+ return md5_file($sPatchPath) == $aVersionUpdateInfo['patch']['md5'];
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+ }
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+
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+ protected function unpackPatch ($sPatchPath)
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+ {
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+ $sTmpFolder = $this->getTmpFolderFromZip($sPatchPath);
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+ if (file_exists($sTmpFolder) && !bx_rrmdir($sTmpFolder))
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+ return false;
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+
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+ $oZip = new ZipArchive();
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+ if ($oZip->open($sPatchPath) !== true)
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+ return false;
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+
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+ $sRootFolder = $oZip->numFiles > 0 ? $oZip->getNameIndex(0) : false;
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+ if (!$sRootFolder || !mkdir($sTmpFolder) || !$oZip->extractTo($sTmpFolder))
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+ $sRootFolder = false;
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+
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+ $oZip->close();
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+
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+ return $sRootFolder ? $sTmpFolder . '/' . trim($sRootFolder, '/') . '/' : false;
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+ }
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+
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+ protected function checkFilesChecksums ()
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+ {
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+ $oHasher = bx_instance('BxDolInstallerHasher');
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+ return $oHasher->checkSystemFilesHash();
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+ }
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+
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+ protected function isValidPatch ($sUnpackedPath, $aVersionUpdateInfo)
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+ {
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+ $sCheckFilePath = $sUnpackedPath . 'upgrade/files/' . $this->normalizeVersion(bx_get_ver()) . '-' . $this->normalizeVersion($aVersionUpdateInfo['patch']['ver']) . '/check.php';
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+ return file_exists($sCheckFilePath);
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+ }
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+
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+ public function getError()
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+ {
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+ return $this->_sError;
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+ }
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+
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+ protected function setError($s)
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+ {
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+ $this->_sError = $s;
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+ }
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+
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+ protected function normalizeVersion($s)
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+ {
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+ return str_replace(array('-', '_', ' '), '.', $s);
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+ }
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+
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+ protected function getTmpFolderFromZip($sPatchPath)
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+ {
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+ return preg_replace('/\.zip$/', '', $sPatchPath);
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+ }
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+
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+ protected function deleteUpgradeFolder($sPatchPath)
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+ {
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+ @bx_rrmdir($this->getTmpFolderFromZip($sPatchPath));
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+ }
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+
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+ protected function deleteUpgradePatch($sPatchPath)
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+ {
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+ @unlink($sPatchPath);
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+ }
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+}
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+
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+/** @} */
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Alex Trofimov