/**
* Return the info XML for a plugin based on a filename
*
* @param string $file The filename of the plugin file
* @return SimpleXMLElement The info structure for the plugin, or null if no info could be loaded
*/
public static function load_info( $file )
{
$info = null;
$xml_file = preg_replace( '%\.plugin\.php$%i', '.plugin.xml', $file );
if ( file_exists( $xml_file ) && $xml_content = file_get_contents( $xml_file ) ) {
// tell libxml to throw exceptions and let us check for errors
$old_error = libxml_use_internal_errors( true );
try {
$info = new SimpleXMLElement( $xml_content );
// if the xml file uses a theme element name instead of pluggable, it's old
if ( $info->getName() != 'pluggable' ) {
$info = 'legacy';
}
// Translate the plugin description
HabariLocale::translate_xml( $info, $info->description );
// Translate the plugin help
foreach( $info->help as $help ) {
HabariLocale::translate_xml( $help, $help->value );
}
}
catch ( Exception $e ) {
EventLog::log( _t( 'Invalid plugin XML file: %1$s', array( $xml_file ) ), 'err', 'plugin' );
$info = 'broken';
}
// restore the old error level
libxml_use_internal_errors( $old_error );
}
return $info;
}
