/**
* Load all the components in the system, replacement for the Core.
* @throws CoreException
*/
private function _loadComponents() {
// cannot reload components.
if ($this->_components) return null;
$this->_components = array();
$this->_libraries = array();
$tempcomponents = false;
Core\Utilities\Logger\write_debug('Starting loading of component metadata');
// If the site is in DEVELOPMENT mode, component caching would probably be a bad idea; ie: the developer probably wants
// those component files loaded everytime.
if(DEVELOPMENT_MODE){
$enablecache = false;
}
else{
$enablecache = true;
}
// Is there a cache of elements available? This is a primary system cache that greatly increases performance,
// since it will no longer have to run through each component.xml file to register each one.
if($enablecache){
Core\Utilities\Logger\write_debug('Checking core-components cache');
// Try to load up the cached components and check them first.
$tempcomponents = \Core\Cache::Get('core-components', (3600 * 24));
if($tempcomponents !== false){
// Cached components only need to be loaded.
foreach ($tempcomponents as $c) {
try {
$c->load();
}
catch (Exception $e) {
// Don't completely bail out here, just invalidate the cache and continue on.
\Core\Cache::Delete('core-components');
$tempcomponents = false;
}
}
}
}
if(!$enablecache || $tempcomponents == false){
\Core\Utilities\Profiler\Profiler::GetDefaultProfiler()->record('Scanning for component.xml files manually');
Core\Utilities\Logger\write_debug('Scanning for component.xml files manually');
// Core is first, (obviously)
$tempcomponents['core'] = ComponentFactory::Load(ROOT_PDIR . 'core/component.xml');
Core\Utilities\Logger\write_debug('Core component loaded');
// First, build my cache of components, regardless if the component is installed or not.
$dh = opendir(ROOT_PDIR . 'components');
if (!$dh) throw new CoreException('Unable to open directory [' . ROOT_PDIR . 'components/] for reading.');
// This will read through every directory in 'components', which is
// where all components in the system are installed to.
while (($file = readdir($dh)) !== false) {
// skip hidden directories.
if ($file{0} == '.') continue;
// skip non-directories
if (!is_dir(ROOT_PDIR . 'components/' . $file)) continue;
// Skip directories that do not have a readable component.xml file.
if (!is_readable(ROOT_PDIR . 'components/' . $file . '/component.xml')) continue;
//Core\Utilities\Logger\write_debug(' * Loading component ' . $file);
$c = ComponentFactory::Load(ROOT_PDIR . 'components/' . $file . '/component.xml');
Core\Utilities\Logger\write_debug('Opened component ' . $file);
// All further operations are case insensitive.
// The original call to Component needs to be case sensitive because it sets the filename to pull.
$file = strtolower($file);
// If the component was flagged as invalid.. just skip to the next one.
if (!$c->isValid()) {
if (DEVELOPMENT_MODE) {
\Core\set_message('Component ' . $c->getName() . ' appears to be invalid.');
}
continue;
}
$tempcomponents[$file] = $c;
unset($c);
}
closedir($dh);
\Core\Utilities\Profiler\Profiler::GetDefaultProfiler()->record('Component XML files scanned');
// Now I probably could actually load the components!
foreach ($tempcomponents as $c) {
/** @var Component_2_1 $c */
try {
// Load some of the data in the class so that it's available in the cached version.
// This is because the component 2.1 has built-in caching for many of the XML requests.
// by calling them once, that lookup data is cached in that component, which in turn gets
// copied to the cache version here!
$c->load();
$c->getClassList();
$c->getViewSearchDir();
$c->getSmartyPluginDirectory();
$c->getWidgetList();
}
catch (Exception $e) {
var_dump($e);
die();
}
}
// Cache this list!
if($enablecache){
Core\Utilities\Logger\write_debug(' * Caching core-components for next pass');
\Core\Cache::Set('core-components', $tempcomponents, (3600 * 24));
}
}
$list = $tempcomponents;
\Core\Utilities\Profiler\Profiler::GetDefaultProfiler()->record('Component metadata loaded, starting registration');
Core\Utilities\Logger\write_debug(' * Component metadata loaded, starting registration');
// The core component at a minimum needs to be loaded and registered.
// $this->_registerComponent($list['core']);
// $this->_components['core']->loadFiles();
// unset($list['core']);
// Now that I have a list of components available, copy them into a list of
// components that are installed.
do {
$size = sizeof($list);
foreach ($list as $n => $c) {
/** @var $c Component_2_1 */
// Disabled components don't get recognized.
if($c->isInstalled() && !$c->isEnabled()){
// But they do get sent to the disabled list!
$this->_componentsDisabled[$n] = $c;
unset($list[$n]);
continue;
}
// Clear out the temporary class list
$this->_tmpclasses = [];
// If it's loaded, register it and remove it from the list!
if ($c->isInstalled() && $c->isLoadable() && $c->loadFiles()) {
try{
// Allow for on-the-fly package upgrading regardless of DEV mode or not.
if ($c->needsUpdated()) {
// Load this component's classes in case an upgrade operation requires one.
// This allows a component to be loaded partially without completely being loaded.
$this->_tmpclasses = $c->getClassList();
// Lock the site first!
// This is because some upgrade procedures take a long time to upgrade.
file_put_contents(TMP_DIR . 'lock.message', 'Core Plus is being upgraded, please try again in a minute. ');
$c->upgrade();
unlink(TMP_DIR . 'lock.message');
}
}
catch(Exception $e){
SystemLogModel::LogErrorEvent('/core/component/failedupgrade', 'Ignoring component [' . $n . '] due to an error during upgrading!', $e->getMessage());
unlink(TMP_DIR . 'lock.message');
//$c->disable();
$this->_componentsDisabled[$n] = $c;
unset($list[$n]);
continue;
}
try{
$this->_components[$n] = $c;
$this->_registerComponent($c);
$c->loadSupplementalModels();
}
catch(Exception $e){
SystemLogModel::LogErrorEvent('/core/component/failedregister', 'Ignoring component [' . $n . '] due to an error during registration!', $e->getMessage());
//$c->disable();
$this->_componentsDisabled[$n] = $c;
unset($list[$n]);
continue;
}
unset($list[$n]);
continue;
}
// Allow for on-the-fly package upgrading regardless of DEV mode or not.
// Guess this is needed for the loadFiles part...
if ($c->isInstalled() && $c->needsUpdated() && $c->isLoadable()) {
// Lock the site first!
// This is because some upgrade procedures take a long time to upgrade.
file_put_contents(TMP_DIR . 'lock.message', 'Core Plus is being upgraded, please try again in a minute. ');
$c->upgrade();
$c->loadFiles();
$this->_components[$n] = $c;
$this->_registerComponent($c);
unlink(TMP_DIR . 'lock.message');
unset($list[$n]);
continue;
}
// Allow packages to be auto-installed if in DEV mode.
// If DEV mode is not enabled, just install the new component, do not enable it.
if (!$c->isInstalled() && $c->isLoadable()) {
// Load this component's classes in case an install operation requires one.
// This allows a component to be loaded partially without completely being loaded.
$this->_tmpclasses = $c->getClassList();
// w00t
$c->install();
// BLAH, until I fix the disabled-packages-not-viewable bug...
$c->enable();
$c->loadFiles();
$this->_components[$n] = $c;
$this->_registerComponent($c);
/*
if(!DEVELOPMENT_MODE){
$c->disable();
}
else{
$c->enable();
$c->loadFiles();
$this->_components[$n] = $c;
$this->_registerComponent($c);
}
*/
unset($list[$n]);
continue;
}
}
}
while ($size > 0 && ($size != sizeof($list)));
// If dev mode is enabled, display a list of components installed but not loadable.
foreach ($list as $n => $c) {
//$this->_components[$n] = $c;
$this->_componentsDisabled[$n] = $c;
// Ignore anything with the execmode different, those should be minor notices for debugging if anything.
if ($c->error & Component_2_1::ERROR_WRONGEXECMODE) continue;
if (DEVELOPMENT_MODE) {
SystemLogModel::LogErrorEvent('/core/component/missingrequirement', 'Could not load installed component ' . $n . ' due to requirement failed.', $c->getErrors());
}
}
// Don't forget to load the themes too!
if(class_exists('ThemeHandler')){
foreach(ThemeHandler::GetAllThemes() as $theme){
/** @var $theme Theme */
$theme->load();
}
}
// Lastly, make sure that the template path cache is updated!
if(class_exists('\\Core\\Templates\\Template')){
\Core\Templates\Template::RequeryPaths();
}
}
