<?php
/**
* A form-tag.
*
* @link https://contactform7.com/tag-syntax/#form_tag
*/
class WPCF7_FormTag implements ArrayAccess {
public $type;
public $basetype;
public $raw_name = '';
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 = array() ) {
if ( is_array( $tag )
or $tag instanceof self ) {
foreach ( $tag as $key => $value ) {
if ( property_exists( __CLASS__, $key ) ) {
$this->{$key} = $value;
}
}
}
}
/**
* Returns true if the type has a trailing asterisk.
*/
public function is_required() {
return str_ends_with( $this->type, '*' );
}
/**
* Returns true if the form-tag has a specified option.
*/
public function has_option( $option_name ) {
$pattern = sprintf( '/^%s(:.+)?$/i', preg_quote( $option_name, '/' ) );
return (bool) preg_grep( $pattern, $this->options );
}
/**
* Retrieves option values with the specified option name.
*
* @param string $option_name Option name.
* @param string $pattern Optional. A regular expression pattern or one of
* the keys of preset patterns. If specified, only options
* whose value part matches this pattern will be returned.
* @param bool $single Optional. If true, only the first matching option
* will be returned. Default false.
* @return string|array|bool The option value or an array of option values.
* False if there is no option matches the pattern.
*/
public function get_option( $option_name, $pattern = '', $single = false ) {
$preset_patterns = array(
'date' => '[0-9]{4}-[0-9]{2}-[0-9]{2}',
'int' => '[0-9]+',
'signed_int' => '[-]?[0-9]+',
'num' => '(?:[0-9]+|(?:[0-9]+)?[.][0-9]+)',
'signed_num' => '[-]?(?:[0-9]+|(?:[0-9]+)?[.][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( $option_name, '/' ),
$pattern
);
if ( $single ) {
$matches = $this->get_first_match_option( $pattern );
if ( ! $matches ) {
return false;
}
return substr( $matches[0], strlen( $option_name ) + 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( $option_name ) + 1 );
}
return $results;
}
}
/**
* Retrieves the id option value from the form-tag.
*/
public function get_id_option() {
static $used = array();
$option = $this->get_option( 'id', 'id', true );
if (
! $option or
str_starts_with( $option, 'wpcf7' ) or
in_array( $option, $used, true )
) {
return false;
}
$used[] = $option;
return $option;
}
/**
* Retrieves the class option value from the form-tag.
*
* @param string|array $default_classes Optional. Preset classes as an array
* or a whitespace-separated list. Default empty string.
* @return string|bool A whitespace-separated list of classes.
* False if there is no class to return.
*/
public function get_class_option( $default_classes = '' ) {
if ( is_string( $default_classes ) ) {
$default_classes = explode( ' ', $default_classes );
}
$options = array_merge(
(array) $default_classes,
(array) $this->get_option( 'class' )
);
$options = array_map( 'sanitize_html_class', $options );
$options = array_filter( array_unique( $options ) );
if ( empty( $options ) ) {
return false;
}
return implode( ' ', $options );
}
/**
* Retrieves the size option value from the form-tag.
*
* @param string $default_value Optional default value.
* @return string The option value.
*/
public function get_size_option( $default_value = false ) {
$option = $this->get_option( 'size', 'int', true );
if ( $option ) {
return $option;
}
$matches_a = $this->get_all_match_options( '%^([0-9]*)/[0-9]*$%' );
foreach ( (array) $matches_a as $matches ) {
if ( isset( $matches[1] ) and '' !== $matches[1] ) {
return $matches[1];
}
}
return $default_value;
}
/**
* Retrieves the maxlength option value from the form-tag.
*
* @param string $default_value Optional default value.
* @return string The option value.
*/
public function get_maxlength_option( $default_value = false ) {
$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] ) and '' !== $matches[1] ) {
return $matches[1];
}
}
return $default_value;
}
/**
* Retrieves the minlength option value from the form-tag.
*
* @param string $default_value Optional default value.
* @return string The option value.
*/
public function get_minlength_option( $default_value = false ) {
$option = $this->get_option( 'minlength', 'int', true );
if ( $option ) {
return $option;
} else {
return $default_value;
}
}
/**
* Retrieves the cols option value from the form-tag.
*
* @param string $default_value Optional default value.
* @return string The option value.
*/
public function get_cols_option( $default_value = false ) {
$option = $this->get_option( 'cols', '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] ) and '' !== $matches[1] ) {
return $matches[1];
}
}
return $default_value;
}
/**
* Retrieves the rows option value from the form-tag.
*
* @param string $default_value Optional default value.
* @return string The option value.
*/
public function get_rows_option( $default_value = false ) {
$option = $this->get_option( 'rows', '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[2] ) and '' !== $matches[2] ) {
return $matches[2];
}
}
return $default_value;
}
/**
* Retrieves a date-type option value from the form-tag.
*
* @param string $option_name A date-type option name, such as 'min' or 'max'.
* @return string|bool The option value in YYYY-MM-DD format. False if the
* option does not exist or the date value is invalid.
*/
public function get_date_option( $option_name ) {
$option_value = $this->get_option( $option_name, '', true );
if ( empty( $option_value ) ) {
return false;
}
$date = apply_filters( 'wpcf7_form_tag_date_option',
null,
array( $option_name => $option_value )
);
if ( $date ) {
$date_pattern = '/^([0-9]{4})-([0-9]{2})-([0-9]{2})$/';
if ( preg_match( $date_pattern, $date, $matches )
and checkdate( $matches[2], $matches[3], $matches[1] ) ) {
return $date;
}
} else {
$datetime_obj = date_create_immutable(
preg_replace( '/[_]+/', ' ', $option_value ),
wp_timezone()
);
if ( $datetime_obj ) {
return $datetime_obj->format( 'Y-m-d' );
}
}
return false;
}
/**
* Retrieves the default option value from the form-tag.
*
* @param string|array $default_value Optional default value.
* @param string|array $args Optional options for the option value retrieval.
* @return string|array The option value. If the multiple option is enabled,
* an array of option values.
*/
public function get_default_option( $default_value = '', $args = '' ) {
$args = wp_parse_args( $args, array(
'multiple' => false,
'shifted' => false,
) );
$options = (array) $this->get_option( 'default' );
$values = array();
if ( empty( $options ) ) {
return $args['multiple'] ? $values : $default_value;
}
foreach ( $options as $opt ) {
$opt = sanitize_key( $opt );
if ( 'user_' == substr( $opt, 0, 5 ) and 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 and 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 and 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 and 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;
}
}
} elseif ( 'shortcode_attr' === $opt ) {
if ( $contact_form = WPCF7_ContactForm::get_current() ) {
$val = $contact_form->shortcode_attr( $this->name );
if ( isset( $val ) and strlen( $val ) ) {
if ( $args['multiple'] ) {
$values[] = $val;
} else {
return $val;
}
}
}
} elseif ( preg_match( '/^[0-9_]+$/', $opt ) ) {
$nums = explode( '_', $opt );
foreach ( $nums as $num ) {
$num = absint( $num );
$num = $args['shifted'] ? $num : $num - 1;
if ( isset( $this->values[$num] ) ) {
if ( $args['multiple'] ) {
$values[] = $this->values[$num];
} else {
return $this->values[$num];
}
}
}
}
}
if ( $args['multiple'] ) {
$values = array_unique( $values );
return $values;
} else {
return $default_value;
}
}
/**
* Retrieves the data option value from the form-tag.
*
* @param string|array $args Optional options for the option value retrieval.
* @return mixed The option value.
*/
public function get_data_option( $args = '' ) {
$options = (array) $this->get_option( 'data' );
return apply_filters( 'wpcf7_form_tag_data_option', null, $options, $args );
}
/**
* Retrieves the limit option value from the form-tag.
*
* @param int $default_value Optional default value. Default 1048576.
* @return int The option value.
*/
public function get_limit_option( $default_value = MB_IN_BYTES ) {
$pattern = '/^limit:([1-9][0-9]*)([kKmM]?[bB])?$/';
$matches = $this->get_first_match_option( $pattern );
if ( $matches ) {
$size = (int) $matches[1];
if ( ! empty( $matches[2] ) ) {
$kbmb = strtolower( $matches[2] );
if ( 'kb' === $kbmb ) {
$size *= KB_IN_BYTES;
} elseif ( 'mb' === $kbmb ) {
$size *= MB_IN_BYTES;
}
}
return $size;
}
return (int) $default_value;
}
/**
* Retrieves the value of the first option matches the given
* regular expression pattern.
*
* @param string $pattern Regular expression pattern.
* @return array|bool Option value as an array of matched strings.
* False if there is no option matches the pattern.
*/
public function get_first_match_option( $pattern ) {
foreach( (array) $this->options as $option ) {
if ( preg_match( $pattern, $option, $matches ) ) {
return $matches;
}
}
return false;
}
/**
* Retrieves values of options that match the given
* regular expression pattern.
*
* @param string $pattern Regular expression pattern.
* @return array Array of arrays of strings that match the pattern.
*/
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;
}
/**
* Assigns a value to the specified offset.
*
* @link https://www.php.net/manual/en/arrayaccess.offsetset.php
*/
#[ReturnTypeWillChange]
public function offsetSet( $offset, $value ) {
if ( property_exists( __CLASS__, $offset ) ) {
$this->{$offset} = $value;
}
}
/**
* Returns the value at specified offset.
*
* @link https://www.php.net/manual/en/arrayaccess.offsetget.php
*/
#[ReturnTypeWillChange]
public function offsetGet( $offset ) {
if ( property_exists( __CLASS__, $offset ) ) {
return $this->{$offset};
}
return null;
}
/**
* Returns true if the specified offset exists.
*
* @link https://www.php.net/manual/en/arrayaccess.offsetexists.php
*/
#[ReturnTypeWillChange]
public function offsetExists( $offset ) {
return property_exists( __CLASS__, $offset );
}
/**
* Unsets an offset.
*
* @link https://www.php.net/manual/en/arrayaccess.offsetunset.php
*/
#[ReturnTypeWillChange]
public function offsetUnset( $offset ) {
}
}
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