Viewing file:  shortcodes.php (12.19 KB) -rw-rw-rw-
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<?php
class WPCF7_ShortcodeManager {
private static $instance;
private $shortcode_tags = array();
// Taggs scanned at the last time of do_shortcode()
private $scanned_tags = null;
// Executing shortcodes (true) or just scanning (false)
private $exec = true;
private function __construct() {}
public static function get_instance() {
if ( empty( self::$instance ) ) {
self::$instance = new self;
}
return self::$instance;
}
public function get_scanned_tags() {
return $this->scanned_tags;
}
public function add_shortcode( $tag, $func, $has_name = false ) {
if ( ! is_callable( $func ) )
return;
$tags = array_filter( array_unique( (array) $tag ) );
foreach ( $tags as $tag ) {
$tag = $this->sanitize_tag_type( $tag );
$this->shortcode_tags[$tag] = array(
'function' => $func,
'has_name' => (boolean) $has_name );
}
}
private function sanitize_tag_type( $tag ) {
$tag = preg_replace( '/[^a-zA-Z0-9_*]+/', '_', $tag );
$tag = rtrim( $tag, '_' );
$tag = strtolower( $tag );
return $tag;
}
public function remove_shortcode( $tag ) {
unset( $this->shortcode_tags[$tag] );
}
public function normalize_shortcode( $content ) {
if ( empty( $this->shortcode_tags ) || ! is_array( $this->shortcode_tags ) )
return $content;
$pattern = $this->get_shortcode_regex();
return preg_replace_callback( '/' . $pattern . '/s',
array( $this, 'normalize_space_cb' ), $content );
}
private function normalize_space_cb( $m ) {
// allow [[foo]] syntax for escaping a tag
if ( $m[1] == '[' && $m[6] == ']' )
return $m[0];
$tag = $m[2];
$attr = trim( preg_replace( '/[\r\n\t ]+/', ' ', $m[3] ) );
$content = trim( $m[5] );
$content = str_replace( "\n", '<WPPreserveNewline />', $content );
$result = $m[1] . '[' . $tag
. ( $attr ? ' ' . $attr : '' )
. ( $m[4] ? ' ' . $m[4] : '' )
. ']'
. ( $content ? $content . '[/' . $tag . ']' : '' )
. $m[6];
return $result;
}
public function do_shortcode( $content, $exec = true ) {
$this->exec = (bool) $exec;
$this->scanned_tags = array();
if ( empty( $this->shortcode_tags ) || ! is_array( $this->shortcode_tags ) )
return $content;
$pattern = $this->get_shortcode_regex();
return preg_replace_callback( '/' . $pattern . '/s',
array( $this, 'do_shortcode_tag' ), $content );
}
public function scan_shortcode( $content ) {
$this->do_shortcode( $content, false );
return $this->scanned_tags;
}
private function get_shortcode_regex() {
$tagnames = array_keys( $this->shortcode_tags );
$tagregexp = join( '|', array_map( 'preg_quote', $tagnames ) );
return '(\[?)'
. '\[(' . $tagregexp . ')(?:[\r\n\t ](.*?))?(?:[\r\n\t ](\/))?\]'
. '(?:([^[]*?)\[\/\2\])?'
. '(\]?)';
}
private function do_shortcode_tag( $m ) {
// allow [[foo]] syntax for escaping a tag
if ( $m[1] == '[' && $m[6] == ']' ) {
return substr( $m[0], 1, -1 );
}
$tag = $m[2];
$attr = $this->shortcode_parse_atts( $m[3] );
$scanned_tag = array(
'type' => $tag,
'basetype' => trim( $tag, '*' ),
'name' => '',
'options' => array(),
'raw_values' => array(),
'values' => array(),
'pipes' => null,
'labels' => array(),
'attr' => '',
'content' => '' );
if ( is_array( $attr ) ) {
if ( is_array( $attr['options'] ) ) {
if ( $this->shortcode_tags[$tag]['has_name'] && ! empty( $attr['options'] ) ) {
$scanned_tag['name'] = array_shift( $attr['options'] );
if ( ! wpcf7_is_name( $scanned_tag['name'] ) )
return $m[0]; // Invalid name is used. Ignore this tag.
}
$scanned_tag['options'] = (array) $attr['options'];
}
$scanned_tag['raw_values'] = (array) $attr['values'];
if ( WPCF7_USE_PIPE ) {
$pipes = new WPCF7_Pipes( $scanned_tag['raw_values'] );
$scanned_tag['values'] = $pipes->collect_befores();
$scanned_tag['pipes'] = $pipes;
} else {
$scanned_tag['values'] = $scanned_tag['raw_values'];
}
$scanned_tag['labels'] = $scanned_tag['values'];
} else {
$scanned_tag['attr'] = $attr;
}
$scanned_tag['values'] = array_map( 'trim', $scanned_tag['values'] );
$scanned_tag['labels'] = array_map( 'trim', $scanned_tag['labels'] );
$content = trim( $m[5] );
$content = preg_replace( "/<br[\r\n\t ]*\/?>$/m", '', $content );
$scanned_tag['content'] = $content;
$scanned_tag = apply_filters( 'wpcf7_form_tag', $scanned_tag, $this->exec );
$this->scanned_tags[] = $scanned_tag;
if ( $this->exec ) {
$func = $this->shortcode_tags[$tag]['function'];
return $m[1] . call_user_func( $func, $scanned_tag ) . $m[6];
} else {
return $m[0];
}
}
private function shortcode_parse_atts( $text ) {
$atts = array( 'options' => array(), 'values' => array() );
$text = preg_replace( "/[\x{00a0}\x{200b}]+/u", " ", $text );
$text = stripcslashes( trim( $text ) );
$pattern = '%^([-+*=0-9a-zA-Z:.!?#$&@_/|\%\r\n\t ]*?)((?:[\r\n\t ]*"[^"]*"|[\r\n\t ]*\'[^\']*\')*)$%';
if ( preg_match( $pattern, $text, $match ) ) {
if ( ! empty( $match[1] ) ) {
$atts['options'] = preg_split( '/[\r\n\t ]+/', trim( $match[1] ) );
}
if ( ! empty( $match[2] ) ) {
preg_match_all( '/"[^"]*"|\'[^\']*\'/', $match[2], $matched_values );
$atts['values'] = wpcf7_strip_quote_deep( $matched_values[0] );
}
} else {
$atts = $text;
}
return $atts;
}
}
function wpcf7_add_shortcode( $tag, $func, $has_name = false ) {
$manager = WPCF7_ShortcodeManager::get_instance();
return $manager->add_shortcode( $tag, $func, $has_name );
}
function wpcf7_remove_shortcode( $tag ) {
$manager = WPCF7_ShortcodeManager::get_instance();
return $manager->remove_shortcode( $tag );
}
function wpcf7_do_shortcode( $content ) {
$manager = WPCF7_ShortcodeManager::get_instance();
return $manager->do_shortcode( $content );
}
class WPCF7_Shortcode {
public $type;
public $basetype;
public $name = '';
public $options = array();
public $raw_values = array();
public $values = array();
public $pipes;
public $labels = array();
public $attr = '';
public $content = '';
public function __construct( $tag ) {
foreach ( $tag as $key => $value ) {
if ( property_exists( __CLASS__, $key ) )
$this->{$key} = $value;
}
}
public function is_required() {
return ( '*' == substr( $this->type, -1 ) );
}
public function has_option( $opt ) {
$pattern = sprintf( '/^%s(:.+)?$/i', preg_quote( $opt, '/' ) );
return (bool) preg_grep( $pattern, $this->options );
}
public function get_option( $opt, $pattern = '', $single = false ) {
$preset_patterns = array(
'date' => '([0-9]{4}-[0-9]{2}-[0-9]{2}|today(.*))',
'int' => '[0-9]+',
'signed_int' => '-?[0-9]+',
'class' => '[-0-9a-zA-Z_]+',
'id' => '[-0-9a-zA-Z_]+' );
if ( isset( $preset_patterns[$pattern] ) )
$pattern = $preset_patterns[$pattern];
if ( '' == $pattern )
$pattern = '.+';
$pattern = sprintf( '/^%s:%s$/i', preg_quote( $opt, '/' ), $pattern );
if ( $single ) {
$matches = $this->get_first_match_option( $pattern );
if ( ! $matches )
return false;
return substr( $matches[0], strlen( $opt ) + 1 );
} else {
$matches_a = $this->get_all_match_options( $pattern );
if ( ! $matches_a )
return false;
$results = array();
foreach ( $matches_a as $matches )
$results[] = substr( $matches[0], strlen( $opt ) + 1 );
return $results;
}
}
public function get_id_option() {
return $this->get_option( 'id', 'id', true );
}
public function get_class_option( $default = '' ) {
if ( is_string( $default ) )
$default = explode( ' ', $default );
$options = array_merge(
(array) $default,
(array) $this->get_option( 'class', 'class' ) );
$options = array_filter( array_unique( $options ) );
return implode( ' ', $options );
}
public function get_size_option( $default = '' ) {
$matches_a = $this->get_all_match_options( '%^([0-9]*)/[0-9]*$%' );
foreach ( (array) $matches_a as $matches ) {
if ( isset( $matches[1] ) && '' !== $matches[1] )
return $matches[1];
}
return $default;
}
public function get_maxlength_option( $default = '' ) {
$option = $this->get_option( 'maxlength', 'int', true );
if ( $option ) {
return $option;
}
$matches_a = $this->get_all_match_options(
'%^(?:[0-9]*x?[0-9]*)?/([0-9]+)$%' );
foreach ( (array) $matches_a as $matches ) {
if ( isset( $matches[1] ) && '' !== $matches[1] )
return $matches[1];
}
return $default;
}
public function get_minlength_option( $default = '' ) {
$option = $this->get_option( 'minlength', 'int', true );
if ( $option ) {
return $option;
} else {
return $default;
}
}
public function get_cols_option( $default = '' ) {
$matches_a = $this->get_all_match_options(
'%^([0-9]*)x([0-9]*)(?:/[0-9]+)?$%' );
foreach ( (array) $matches_a as $matches ) {
if ( isset( $matches[1] ) && '' !== $matches[1] )
return $matches[1];
}
return $default;
}
public function get_rows_option( $default = '' ) {
$matches_a = $this->get_all_match_options(
'%^([0-9]*)x([0-9]*)(?:/[0-9]+)?$%' );
foreach ( (array) $matches_a as $matches ) {
if ( isset( $matches[2] ) && '' !== $matches[2] )
return $matches[2];
}
return $default;
}
public function get_date_option( $opt ) {
$option = $this->get_option( $opt, 'date', true );
if ( preg_match( '/^[0-9]{4}-[0-9]{2}-[0-9]{2}$/', $option ) ) {
return $option;
}
if ( preg_match( '/^today(?:([+-][0-9]+)([a-z]*))?/', $option, $matches ) ) {
$number = isset( $matches[1] ) ? (int) $matches[1] : 0;
$unit = isset( $matches[2] ) ? $matches[2] : '';
if ( ! preg_match( '/^(day|month|year|week)s?$/', $unit ) ) {
$unit = 'days';
}
$date = gmdate( 'Y-m-d',
strtotime( sprintf( 'today %1$s %2$s', $number, $unit ) ) );
return $date;
}
return false;
}
public function get_default_option( $default = '', $args = '' ) {
$args = wp_parse_args( $args, array(
'multiple' => false ) );
$options = (array) $this->get_option( 'default' );
$values = array();
if ( empty( $options ) ) {
return $args['multiple'] ? $values : $default;
}
foreach ( $options as $opt ) {
$opt = sanitize_key( $opt );
if ( 'user_' == substr( $opt, 0, 5 ) && is_user_logged_in() ) {
$primary_props = array( 'user_login', 'user_email', 'user_url' );
$opt = in_array( $opt, $primary_props ) ? $opt : substr( $opt, 5 );
$user = wp_get_current_user();
$user_prop = $user->get( $opt );
if ( ! empty( $user_prop ) ) {
if ( $args['multiple'] ) {
$values[] = $user_prop;
} else {
return $user_prop;
}
}
} elseif ( 'post_meta' == $opt && in_the_loop() ) {
if ( $args['multiple'] ) {
$values = array_merge( $values,
get_post_meta( get_the_ID(), $this->name ) );
} else {
$val = (string) get_post_meta( get_the_ID(), $this->name, true );
if ( strlen( $val ) ) {
return $val;
}
}
} elseif ( 'get' == $opt && isset( $_GET[$this->name] ) ) {
$vals = (array) $_GET[$this->name];
$vals = array_map( 'wpcf7_sanitize_query_var', $vals );
if ( $args['multiple'] ) {
$values = array_merge( $values, $vals );
} else {
$val = isset( $vals[0] ) ? (string) $vals[0] : '';
if ( strlen( $val ) ) {
return $val;
}
}
} elseif ( 'post' == $opt && isset( $_POST[$this->name] ) ) {
$vals = (array) $_POST[$this->name];
$vals = array_map( 'wpcf7_sanitize_query_var', $vals );
if ( $args['multiple'] ) {
$values = array_merge( $values, $vals );
} else {
$val = isset( $vals[0] ) ? (string) $vals[0] : '';
if ( strlen( $val ) ) {
return $val;
}
}
}
}
if ( $args['multiple'] ) {
$values = array_unique( $values );
return $values;
} else {
return $default;
}
}
public function get_data_option( $args = '' ) {
$options = (array) $this->get_option( 'data' );
return apply_filters( 'wpcf7_form_tag_data_option', null, $options, $args );
}
public function get_first_match_option( $pattern ) {
foreach( (array) $this->options as $option ) {
if ( preg_match( $pattern, $option, $matches ) )
return $matches;
}
return false;
}
public function get_all_match_options( $pattern ) {
$result = array();
foreach( (array) $this->options as $option ) {
if ( preg_match( $pattern, $option, $matches ) )
$result[] = $matches;
}
return $result;
}
}
?>
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