PanoPress Shortcode

function pp_sohrtcode_handler( $attributes ) {
	global $pp_settings;
	/* user can use short keys, eg. 'w' for 'width' etc.
	   only items in this array allowed to pass into settings */
	$att   = array(
		'f' => PP_SETTINGS_FILE,
		'w' => PP_SETTINGS_WIDTH,
		'h' => PP_SETTINGS_HEIGHT,
		'a' => PP_SETTINGS_ALT,
		't' => PP_SETTINGS_TITLE,
		'p' => PP_SETTINGS_PREVIEW,
		'b' => PP_SETTINGS_PANOBOX,
		'n' => PP_SETTINGS_PLAY_BUTTON
	);
	// clean attributes and use short keys
	$clean = array();
	foreach( $att as $key => $val ) {
		if ( array_key_exists( $val, $attributes ) ) $clean[$val] = $attributes[$val];     /* test for full length key first */
		elseif ( array_key_exists( $key, $attributes ) ) $clean[$val] = $attributes[$key]; /* test for short key */
	}
	// check play button
	if ( isset( $clean[PP_SETTINGS_PLAY_BUTTON] ) ) {
		$clean[PP_SETTINGS_PLAY_BUTTON] = pp_bool( $clean[PP_SETTINGS_PLAY_BUTTON] );
	}
	// check panobox
	if ( isset( $clean[PP_SETTINGS_PANOBOX] ) ) {
		$clean[PP_SETTINGS_PANOBOX_ACTIVE] = pp_bool( $clean[PP_SETTINGS_PANOBOX]  );
		unset( $clean[PP_SETTINGS_PANOBOX] );
	}
	// combine the shortcode attribute with default settings
	$settings = array_merge( $pp_settings, $clean );
	// check if the file name was set
	if ( ! $settings[PP_SETTINGS_FILE] ) {
		return pp_error( pp__( 'Please enter file name or URL' ) );
	}	
	// set type by file ext 
	$filestr = strtolower( $settings[PP_SETTINGS_FILE] );
	if( strstr( $filestr, '?' ) ){
		$filestr = substr ($filestr, 0, strpos( $filestr, '?') );
	}

	$file_name = substr( $filestr,  strrpos( $filestr, '/' ) );
	$settings[PP_SETTINGS_TYPE] = substr ( $file_name, strrpos( $file_name, '.' ) + 1 );//substr ( $filestr, strrpos( $filestr, '.') + 1 );	
	// if file is not full url, craete a local url
	if ( strtolower( substr( $settings[PP_SETTINGS_FILE], 0, 4 ) ) != 'http' )
		$settings[PP_SETTINGS_FILE] =  site_url( '/' . $pp_settings[PP_SETTINGS_UPLOAD_DIR] . '/' . $settings[PP_SETTINGS_FILE] );
	// if poster is not full url, craete a local url
	if ( strlen( $settings[PP_SETTINGS_PREVIEW]) > 0 && strtolower( substr( $settings[PP_SETTINGS_PREVIEW], 0, 4 ) ) != 'http' )
		$settings[PP_SETTINGS_PREVIEW] = site_url( '/' . $pp_settings[PP_SETTINGS_UPLOAD_DIR] . '/' . $settings[PP_SETTINGS_PREVIEW] );
	// replace spaces in url with %20
	$settings[PP_SETTINGS_PREVIEW] = str_replace ( ' ' , '%20' , $settings[PP_SETTINGS_PREVIEW] );
	$settings[PP_SETTINGS_FILE]    = str_replace ( ' ' , '%20' , $settings[PP_SETTINGS_FILE] );
	
	// parse xml
	if ( $settings[PP_SETTINGS_TYPE] == PP_FILE_TYPE_XML ) {
		$got_name = pp_get_viewr_name ( $settings[ PP_SETTINGS_FILE ] );
		if ( $got_name[ 'status' ] == 1 ) {
			$settings[ PP_SETTINGS_VIEWER_NAME ] = 	$got_name[ 'content' ];
		} elseif ( is_user_logged_in() ) {
			return pp_error ( $got_name[ 'content' ] );
		}
		
		// error report (admin only)
		libxml_use_internal_errors( is_user_logged_in() );
		// test allow_url_fopen
		if( ini_get( 'allow_url_fopen' ) == 1 ){ 
			$xml = is_user_logged_in() ? simplexml_load_file( $settings[PP_SETTINGS_FILE] ) :  @ simplexml_load_file( $settings[PP_SETTINGS_FILE] );
		}
		// try curl
		else if ( function_exists('curl_init') ) {

			//1.1
			$results = pp_get_url( $settings[PP_SETTINGS_FILE] );
			if ( $results['status'] == 200 ) {
				$xml = simplexml_load_string( $results['content'] );
			} elseif ( is_user_logged_in() ) {
				return pp_error ( pp__( 'Can\'t find XML file' ) . ' ' . $settings[PP_SETTINGS_FILE] );
			}
			
		}
		// TODO: ask input from user (admin only)
		elseif ( is_user_logged_in() ) {
			return pp_error( '<p>' . pp__( '"allow_url_fopen" option is not enabled in the php.ini file on this server & cURL is not installed.' ) . '.</p>');
		}
		// xml errors (admin only)
		if ( $xml === false && is_user_logged_in() ) {
			$err = '';
			foreach( libxml_get_errors() as $error )
				$err .=  $error->message . '(line ' . $error->line . ' in ' . $error->file . ')<br />';
			return pp_error( '<p>' . $err . '</p>' );
		}
		elseif ( $xml ) {
			if ( $xml -> getName() == 'krpano' )      
				$settings[PP_SETTINGS_VIEWER_NAME] = PP_VIEWER_NAME_KRPANO;      // krpano xml
			elseif ( $xml -> getName() == 'panorama' ) {
				$settings[PP_SETTINGS_VIEWER_NAME] = PP_VIEWER_NAME_PANO2VR;     // pano2vr xml
				foreach ( $xml -> children() as $second ) 
					if ( $second-> getName() ==  'parameters' )
						$settings[PP_SETTINGS_VIEWER_NAME] = PP_VIEWER_NAME_FPP; // fpp xml
			}
		}
		else
			return $settings[PP_SETTINGS_ALT];
	}
	// call select with settings array
	return pp_select( $settings );
	
}