function installUpdate()
{
if (!file_exists($this->versions_path)) {
$params =& $this->params;
RokUpdater::updateVersion($params->get('update_name'), $params->get('update_slug'), $params->get('current_version'), $this->details_url);
}
// read version file
jimport('joomla/filesystem.file');
$version = json_decode(JFile::read($this->versions_path));
$this->current_version = $version->current_version;
$alldetails = $this->_decodeJSONData($this->details_path);
foreach ($alldetails as $key => $details) {
if ($key == $version->slug) {
foreach ($details->versions as $newversion) {
if (version_compare($this->current_version, $newversion->minimum_version, '>=')) {
$details->download_url = $newversion->download_url;
$details->version = $newversion->version;
$details->md5 = $newversion->md5;
}
}
$file_path = $this->tmp_path . DS . basename($details->download_url);
$result = RokUpdater::downloadFile($details->download_url, $file_path);
if (is_object($result)) {
HTML_RokError::showError('Download Failed: ' . $result->message . '(' . $result->number . ')</p>');
return false;
}
if (md5_file($file_path) != $details->md5) {
HTML_RokError::showError('MD5 Mismatch: The MD5 hash for the downloaded file does not match the anticipated value.</p>');
return false;
}
$extractor = $this->extractor;
$install_path = $this->tmp_path;
// Temporary folder to extract the archive into
$tmpdir = uniqid('install_');
$install_path = $install_path . DS . $tmpdir;
switch ($extractor) {
case ROKUPDATER_EXTRACTOR_16:
RokUpdater::import('joomla.filesystem.archive');
if (!JArchive::extract($file_path, $install_path)) {
HTML_RokError::showError('Failed to extract archive!');
return false;
}
break;
case ROKUPDATER_EXTRACTOR_15:
jimport('joomla.filesystem.archive');
if (!JArchive::extract($file_path, $install_path)) {
HTML_RokError::showError('Failed to extract archive!');
return false;
}
break;
case ROKUPDATER_EXTRACTOR_PEAR:
jimport('pear.archive_tar.Archive_Tar');
$extractor = new Archive_Tar($install_path);
if (!$extractor->extract(JPATH_SITE)) {
HTML_RokError::showError('Failed to extract archive!');
return false;
}
break;
}
jimport('joomla.installer.installer');
jimport('joomla.installer.helper');
jimport('joomla.filesystem.folder');
jimport('joomla.filesystem.file');
// Get an installer instance
$installer =& RokStarInstaller::getInstance();
// Run the installer and catch any output
ob_start();
$ret = $installer->install($install_path);
$output = ob_get_clean();
$errors = JError::getErrors();
JFolder::delete($install_path);
JFile::delete($file_path);
RokUpdater::updateVersion($details->name, $version->slug, $details->version, $this->details_url);
return $ret;
}
}
}
