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<?php |
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|
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/** |
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* bbPress Converter |
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* |
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* Based on the hard work of Adam Ellis |
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* |
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* @package bbPress |
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* @subpackage Administration |
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*/ |
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|
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// Exit if accessed directly |
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defined( 'ABSPATH' ) || exit; |
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|
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/** |
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* Return an array of available converters |
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* |
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* @since 2.6.0 bbPress (r6448) |
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* |
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* @return array |
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*/ |
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function bbp_get_converters() { |
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static $files = array(); |
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|
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// Only hit the file system one time per page load |
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if ( empty( $files ) ) { |
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|
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// Open the converter directory |
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$path = bbp_setup_converter()->converters_dir; |
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$curdir = opendir( $path ); |
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|
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// Look for the converter file in the converters directory |
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if ( false !== $curdir ) { |
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while ( $file = readdir( $curdir ) ) { |
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if ( stristr( $file, '.php' ) && stristr( $file, 'index' ) === false ) { |
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$name = preg_replace( '/.php/', '', $file ); |
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if ( 'Example' !== $name ) { |
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$files[ $name ] = $path . $file; |
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} |
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} |
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} |
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} |
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|
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// Close the directory |
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closedir( $curdir ); |
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|
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// Sort keys alphabetically, ignoring upper/lower casing |
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if ( ! empty( $files ) ) { |
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natcasesort( $files ); |
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} |
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} |
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|
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// Filter & return |
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return (array) apply_filters( 'bbp_get_converters', $files ); |
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} |
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|
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/** |
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* Check a source database table prefix before using it in converter queries. |
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* |
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* @since 2.6.19 bbPress (r7737) |
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* |
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* @param mixed $prefix Source database table prefix. |
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* @return bool Whether the prefix contains only valid table-prefix characters. |
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*/ |
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function bbp_is_valid_converter_prefix( $prefix ) { |
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return is_string( $prefix ) && ( 0 === preg_match( '|[^a-z0-9_]|i', $prefix ) ); |
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} |
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|
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/** |
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* This is a function that is purposely written to look like a "new" statement. |
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* It is basically a dynamic loader that will load in the platform conversion |
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* of your choice. |
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* |
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* @since 2.1.0 bbPress (r3816) |
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* |
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* @param string $platform Name of valid platform class. |
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* |
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* @return mixed Object if converter exists, null if not |
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*/ |
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function bbp_new_converter( $platform = '' ) { |
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|
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// Default converter |
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$converter = null; |
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|
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// Bail if no platform |
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if ( empty( $platform ) ) { |
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return $converter; |
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} |
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|
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// Never build source-table queries with an invalid saved prefix. |
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if ( ! bbp_is_valid_converter_prefix( get_option( '_bbp_converter_db_prefix', '' ) ) ) { |
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return $converter; |
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} |
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|
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// Get the available converters |
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$converters = bbp_get_converters(); |
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|
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// Get the converter file form converters array |
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$converter_file = isset( $converters[ $platform ] ) |
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? $converters[ $platform ] |
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: ''; |
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|
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// Try to create a new converter object |
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if ( ! empty( $converter_file ) ) { |
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|
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// Try to include the converter |
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@include_once $converter_file; |
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|
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// Try to instantiate the converter object |
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if ( class_exists( $platform ) ) { |
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$converter = new $platform(); |
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} |
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} |
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|
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// Filter & return |
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return apply_filters( 'bbp_new_converter', $converter, $platform ); |
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} |
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|
