/**
* Method to create the extension root path if necessary
*
* @return void
*
* @since 3.4
* @throws RuntimeException
*/
protected function createExtensionRoot()
{
// Run the common create code first
parent::createExtensionRoot();
// If we're updating at this point when there is always going to be an extension_root find the old XML files
if ($this->route == 'update') {
// Create a new installer because findManifest sets stuff; side effects!
$tmpInstaller = new JInstaller();
// Look in the extension root
$tmpInstaller->setPath('source', $this->parent->getPath('extension_root'));
if ($tmpInstaller->findManifest()) {
$old_manifest = $tmpInstaller->getManifest();
$this->oldFiles = $old_manifest->files;
}
}
}
/**
* Get the filtered extension element from the manifest
*
* @param string $element Optional element name to be converted
*
* @return string The filtered element
*
* @since 3.4
*/
public function getElement($element = null)
{
$element = parent::getElement($element);
if (substr($element, 0, 4) != 'com_') {
$element = 'com_' . $element;
}
return $element;
}
/**
* Shit happens. Patched function to bypass bug in package uninstaller
*
* @param JInstallerAdapter $parent Parent object
*
* @return void
*/
protected function loadManifest($parent)
{
$element = strtolower(str_replace('InstallerScript', '', get_called_class()));
$elementParts = explode('_', $element);
// Type not properly detected or not a package
if (count($elementParts) != 2 || strtolower($elementParts[0]) != 'pkg') {
$this->manifest = $parent->get('manifest');
return;
}
$rootPath = $parent->getParent()->getPath('extension_root');
$manifestPath = dirname($rootPath);
$manifestFile = $manifestPath . '/' . $element . '.xml';
// Package manifest found
if (file_exists($manifestFile)) {
$this->manifest = JFactory::getXML($manifestFile);
return;
}
$this->manifest = $parent->get('manifest');
}
/**
* Function called before extension installation/update/removal procedure commences
*
* @param string $type The type of change (install, update or discover_install, not uninstall)
* @param JInstallerAdapter $parent The class calling this method
*
* @return boolean True on success
*
* @since 3.6
*/
public function preflight($type, $parent)
{
// Check for the minimum PHP version before continuing
if (!empty($this->minimumPhp) && !version_compare(PHP_VERSION, $this->minimumPhp, '>')) {
JLog::add(JText::sprintf('JLIB_INSTALLER_MINIMUM_PHP', $this->minimumPhp), JLog::WARNING, 'jerror');
}
// Check for the minimum Joomla version before continuing
if (!empty($this->minimumJoomla) && !version_compare(JVERSION, $this->minimumJoomla, '>')) {
JLog::add(JText::sprintf('JLIB_INSTALLER_MINIMUM_JOOMLA', $this->minimumJoomla), JLog::WARNING, 'jerror');
}
// Extension manifest file version
$this->release = $parent->getManifest()->version;
$extensionType = substr($this->extension, 0, 3);
// Modules parameters are located in the module table - else in the extension table
if ($extensionType === 'mod') {
$this->paramTable = '#__modules';
} else {
$this->paramTable = '#__extensions';
}
// Abort if the extension being installed is not newer than the currently installed version
if (strtolower($type) == 'update' && !$this->allowDowngrades) {
$manifest = $this->getItemArray('manifest_cache', '#__extensions', 'element', JFactory::getDbo()->quote($this->extension));
$oldRelease = $manifest['version'];
if (version_compare($this->release, $oldRelease, '<')) {
JFactory::getApplication()->enqueueMessage(JText::sprintf('JLIB_INSTALLER_INCORRECT_SEQUENCE', $oldRelease, $this->release), 'error');
return false;
}
}
return true;
}
/**
* Install TCPDF
*
* @param JInstallerAdapter $parent How this was tarted
*
* @return void
*
* @since 1.7.0
*/
private function _installTCPDF($parent)
{
$src = $parent->getParent()->getPath('source');
$needUpgrade = false;
// Install the TCPDF libraries
$source = $src . '/libraries/tcpdf';
$component = $source . '/tcpdf.xml';
if (file_exists($component)) {
$this->srcxml = simplexml_load_file($component);
}
if (!defined('JPATH_LIBRARIES')) {
$target = JPATH_ROOT . '/libraries/tcpdf';
} else {
$target = JPATH_LIBRARIES . '/tcpdf';
}
$haveToInstallTCPDF = false;
if (!JFolder::exists($target)) {
$component = $target . '/tcpdf.xml';
if (file_exists($component)) {
$this->xml = simplexml_load_file($component);
}
$this->tcpdf_version = $this->xml->version;
$this->tcpdf_result = 'Installed';
$haveToInstallTCPDF = true;
} else {
$component = $target . '/tcpdf.xml';
if (file_exists($component)) {
$this->xml = simplexml_load_file($component);
}
$needUpgrade = version_compare($this->srcxml->version, $this->xml->version, '>');
if ($needUpgrade) {
$this->tcpdf_result = 'Upgrade';
} else {
$this->tcpdf_result = 'No Change';
}
}
if ($haveToInstallTCPDF || $needUpgrade) {
$installer = new JInstaller();
$installer->install($source);
}
$this->status->libraries[] = ['name' => 'TCPDF', 'Version' => $this->tcpdf_version, 'result' => $this->tcpdf_result];
return;
}