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<?php
require_once WPCF_INC_ABSPATH . '/classes/class.types.admin.page.php';
/**
* Summary.
*
* Description.
*
* @since x.x.x
* @access (for functions: only use if private)
*
* @see Function/method/class relied on
* @link URL
* @global type $varname Description.
* @global type $varname Description.
*
* @param type $var Description.
* @param type $var Optional. Description.
* @return type Description.
*/
class Types_Fields_Conditional extends Types_Admin_Page
{
public function __construct()
{
$this->init_admin();
}
public function init_admin()
{
/**
* fields
*/
add_action('wp_ajax_wpcf_edit_field_condition_get_row', array($this, 'field_get_row'));
add_action('wp_ajax_wpcf_edit_field_condition_get', array($this, 'field_condition_get'));
add_action('wp_ajax_wpcf_edit_field_condition_save', array($this, 'field_save'));
/**
* group
*/
add_action('wp_ajax_wpcf_edit_custom_field_group_get', array($this, 'group_condition_get'));
}
/**
* Summary.
*
* Description.
*
* @since x.x.x
* @access (for functions: only use if private)
*
* @see Function/method/class relied on
* @link URL
* @global type $varname Description.
* @global type $varname Description.
*
* @param type $var Description.
* @param type $var Optional. Description.
* @return type Description.
*/
public function get_field_conditionals($form, $data)
{
/**
* Sanitize form
*/
if ( !is_array($form) ) {
$form = array();
}
if( isset( $data['meta_type'] ) ) {
switch( $data['meta_type'] ) {
case 'postmeta':
$form['data-dependant-meta'] = array(
'#type' => 'markup',
'#markup' => '<span id="data-dependant-meta" style="display:none;"
data-wpcf-action="wpcf_edit_field_condition_get"
data-wpcf-id="'.$data['name'].'"
data-wpcf-group-id="'.$data['id'].'"
data-wpcf-buttons-apply-nonce="'. wp_create_nonce( 'wpcf-conditional-apply-'.$data['id'] ) .'"
data-wpcf-meta-type="postmeta"></span>'
);
break;
case 'custom_fields_group':
case 'custom-fields-group':
$form['data-dependant-meta'] = array(
'#type' => 'markup',
'#markup' => '<span id="data-dependant-meta" style="display:none;"
data-wpcf-action="wpcf_edit_custom_field_group_get"
data-wpcf-id="'.$data['name'].'"
data-wpcf-group-id="'.$data['id'].'"
data-wpcf-buttons-apply-nonce="'. wp_create_nonce( 'wpcf-conditional-apply-'.$data['id'] ) .'"
data-wpcf-meta-type="custom_fields_group"></span>'
);
break;
}
}
$use_custom_logic = $this->use_custom_logic($data);
$datas = wpcf_admin_fields_get_fields(true, false, true);
ksort( $datas, SORT_STRING );
$form['form-begin'] = array(
'#type' => 'markup',
'#markup' => '<form>',
);
$form['simple-logic-open'] = array(
'#type' => 'markup',
'#markup' => sprintf(
'<div class="js-wpcf-simple-logic %s">',
$use_custom_logic ? 'hidden':''
),
);
$form['description'] = array(
'#type' => 'markup',
'#markup' => wpautop(__("Specify additional filters that control this fields group display, based on values of other custom fields.", 'wpcf')),
);
$show_relation = (
true
&& isset( $data['data']['conditional_display'])
&& isset( $data['data']['conditional_display']['conditions'])
&& !empty( $data['data']['conditional_display']['conditions'])
);
$form['cd-relation'] = array(
'#title' => __('Relation between conditions:', 'wpcf'),
'#type' => 'radios',
'#name' => 'relation',
'#options' => array(
'AND' => array(
'#title' => 'AND',
'#inline' => true,
'#value' => 'AND',
),
'OR' => array(
'#title' => 'OR',
'#inline' => true,
'#value' => 'OR'
),
),
'#default_value' => isset( $data['data']['conditional_display']['relation'] ) ? $data['data']['conditional_display']['relation'] : 'AND',
'#inline' => true,
'#before' => sprintf('<div class="wpcf-cd-relation simple-logic %s">', $show_relation && 1 < count( $data['data']['conditional_display']['conditions'])?'':'hidden'),
'#after' => '</div>',
);
$form['options-markup-open'] = array(
'#type' => 'markup',
'#title' => __( 'Options', 'wpcf' ),
'#markup' => sprintf(
'<table id="wpcf-conditional"><thead><tr>'
.'<td class="wpcf-form-options-header-title">%s</th>'
.'<td class="wpcf-form-options-header-value">%s</th>'
.'<td class="wpcf-form-options-header-default">%s</th>'
.'</tr></thead>'
.'<tbody id="%s-sortable" class="js-wpcf-fields-conditions">',
__( 'Field', 'wpcf' ),
__( 'Condition', 'wpcf' ),
__( 'Value', 'wpcf' ),
esc_attr($data['id'])
),
);
if ( $show_relation ) {
$group = isset($data['meta_type']) && 'custom-fields-group' == $data['meta_type'];
require_once WPCF_ABSPATH . '/includes/conditional-display.php';
if( is_array( $data['data']['conditional_display']['conditions'] ) && ! empty( $data['data']['conditional_display']['conditions'] ) ) {
foreach( $data['data']['conditional_display']['conditions'] as $condition ) {
$form += wpcf_cd_admin_form_single_filter($data, $condition, null, $group);
}
}
}
$form['options-response-close'] = array(
'#type' => 'markup',
'#markup' => '</table>',
);
$form['button-add'] = array(
'#type' => 'button',
'#inline' => true,
'#value' => isset( $data['data']['conditional_display']['conditions'] ) && !empty( $data['data']['conditional_display']['conditions'] )
? __( 'Add another condition', 'wpcf' ) : __( 'Add condition', 'wpcf' ),
'#name' => 'button-add',
'#attributes' => array(
'class' => sprintf( 'js-wpcf-condition-button-add-row %s', isset( $data['data']['conditional_display']['conditions'] ) ? 'alignright' : 'wpcf-block-center' ),
'data-wpcf-nonce' => wp_create_nonce($this->get_nonce(__CLASS__, $data['id'], $data['meta_type'] ) ),
'data-wpcf-id' => $data['id'],
'data-wpcf-meta-type' => $data['meta_type'],
'data-wpcf-label-add-condition' => __( 'Add condition', 'wpcf' ),
'data-wpcf-label-add-another-condition' => __( 'Add another condition', 'wpcf' )
),
'#before' => '<p>',
'#after' => '</p>',
);
$form['simple-logic-close'] = array(
'#type' => 'markup',
'#markup' => '</div>',
);
/**
* Advanced conditional
*/
$form['toggle_open_area'] = array(
'#type' => 'markup',
'#markup' => sprintf(
'<div class="js-wpcf-advance-logic %s">',
$use_custom_logic ? '':'hidden'
),
);
$form['custom-description'] = array(
'#type' => 'markup',
'#markup' => wpautop(__('Customize conditions', 'wpcf')),
);
$form['custom'] = array(
'#type' => 'textarea',
'#name' => 'custom',
'#inline' => true,
'#value' => isset( $data['data']['conditional_display']['custom'] ) ? $data['data']['conditional_display']['custom'] : '',
);
$form['date_notice'] = array(
'#type' => 'markup',
'#markup' =>
sprintf(
'<div style="display:none; margin-top:15px;" class="wpcf-cd-notice-date">
<a href="%s" target="_blank">%s »</a></div>',
Types_Helper_Url::get_url( 'date-filters', true ),
__( 'Dates can be entered using the date filters', 'wpcf' )
),
);
$form['toggle_close'] = array(
'#type' => 'markup',
'#markup' => '</div>',
);
/**
* switch button
*/
$form['switch'] = array(
'#type' => 'markup',
'#markup' => sprintf(
'<a href="#" data-wpcf-content-advanced="%s" data-wpcf-content-simple="%s" data-wpcf-custom-logic="%s" class="js-wpcf-condition-button-display-logic">%s</a>',
__('Advanced text mode', 'wpcf'),
__('Switch to basic mode', 'wpcf'),
$use_custom_logic? 'advance-logic':'simple-logic',
$use_custom_logic? __('Switch to basic mode', 'wpcf'):__('Advanced text mode', 'wpcf')
),
'#before' => '<p class="wpcf-fields-conditional-switch-container">',
'#after' => '</p>',
'#pattern' => '<BEFORE><ELEMENT><AFTER>',
);
$form['custom_use'] = array(
'#type' => 'hidden',
'#name' => 'custom_use',
'#value' => $use_custom_logic,
'#attributes' => array(
'class' => 'js-wpcf-condition-custom-use',
),
);
$form['form-end'] = array(
'#type' => 'markup',
'#markup' => '</form>',
);
return $form;
}
/**
* Summary.
*
* Description.
*
* @since x.x.x
* @access (for functions: only use if private)
*
* @see Function/method/class relied on
* @link URL
* @global type $varname Description.
* @global type $varname Description.
*
* @param type $var Description.
* @param type $var Optional. Description.
* @return type Description.
*/
private function use_custom_logic($data)
{
return (
true
&& array_key_exists( 'data', $data )
&& is_array( $data['data'] )
&& array_key_exists( 'conditional_display', $data['data'] )
&& is_array( $data['data']['conditional_display'] )
&& array_key_exists( 'custom_use', $data['data']['conditional_display'] )
&& !empty( $data['data']['conditional_display']['custom_use'] )
);
}
/**
* Summary.
*
* Description.
*
* @since x.x.x
* @access (for functions: only use if private)
*
* @see Function/method/class relied on
* @link URL
* @global type $varname Description.
* @global type $varname Description.
*
* @param type $var Description.
* @param type $var Optional. Description.
* @return type Description.
*/
public function field_get_row()
{
/**
* check nonce
*/
if (
0
|| !isset($_REQUEST['_wpnonce'])
|| !isset($_REQUEST['id'])
|| !isset($_REQUEST['meta_type'])
|| !wp_verify_nonce($_REQUEST['_wpnonce'], $this->get_nonce(__CLASS__, $_REQUEST['id'], $_REQUEST['meta_type']))
) {
$this->verification_failed_and_die();
}
$field = wpcf_admin_fields_get_field( sanitize_text_field( $_REQUEST['id'] ), false, true );
require_once WPCF_ABSPATH . '/includes/conditional-display.php';
$is_group = $_REQUEST['meta_type'] == 'custom-fields-group'
? true
: false;
echo wpcf_form_simple( wpcf_cd_admin_form_single_filter( $field, array(), null, $is_group ) );
die;
}
/**
* Summary.
*
* Description.
*
* @since x.x.x
* @access (for functions: only use if private)
*
* @see Function/method/class relied on
* @link URL
* @global type $varname Description.
* @global type $varname Description.
*
* @param type $var Description.
* @param type $var Optional. Description.
* @return type Description.
*/
public function field_save()
{
/**
* check nonce
*/
if (
false
|| !isset($_REQUEST['_wpnonce'])
|| !isset($_REQUEST['id'])
|| !isset($_REQUEST['group_id'])
|| !isset($_REQUEST['meta_type'])
|| !isset($_REQUEST['conditions'])
|| !isset($_REQUEST['group_conditions'])
|| !wp_verify_nonce($_REQUEST['_wpnonce'], $this->get_nonce('wpcf-conditional-apply', $_REQUEST['group_id']))
) {
$this->verification_failed_and_die();
}
$id = $_REQUEST['id'];
$group_conditions = $_REQUEST['group_conditions'] == 1 ? true : false;
$conditions_set = false;
$conditions = array();
parse_str($_REQUEST['conditions'], $conditions);
// group conditions
if( $group_conditions ) {
$id = $_REQUEST['group_id'];
if( isset( $conditions['wpcf']['group']['conditional_display']['conditions'] ) )
$conditions_set = $conditions['wpcf']['group']['conditional_display']['conditions'];
// single field conditions
} elseif( isset( $conditions['wpcf']['fields'][$id]['conditional_display']['conditions'] ) ) {
$conditions_set = $conditions['wpcf']['fields'][$id]['conditional_display']['conditions'];
}
// update condtions
if( $conditions_set || ( isset( $conditions['custom'] ) && ! empty( $conditions['custom'] ) ) ) {
// filter unfilled fields
$conditions_to_save = array();
if( $conditions_set ) {
foreach( $conditions_set as $key => $one ) {
if ( empty($one['field']) ) {
continue;
}
$conditions_to_save[$key] = $one;
}
}
$this->update_conditions(
$id,
$_REQUEST['meta_type'],
array(
'relation' => isset($conditions['relation'])? $conditions['relation']:'AND',
'conditions' => $conditions_to_save,
'custom' => isset($conditions['custom'])? $conditions['custom']:'',
'custom_use' => isset($conditions['custom_use'])? intval($conditions['custom_use']):0,
),
$group_conditions
);
} else {
$this->remove_conditions( $id, $group_conditions );
die( '' );
}
$field = ( $group_conditions )
? array( 'data' => array('conditional_display' => get_post_meta( $id, '_wpcf_conditional_display', true ) ) )
: wpcf_admin_fields_get_field( sanitize_text_field( $_REQUEST['id'] ), false, true );
require_once WPCF_ABSPATH . '/includes/conditional-display.php';
echo wpcf_conditional_get_curent($field);
die;
}
/**
* Summary.
*
* Description.
*
* @since x.x.x
* @access (for functions: only use if private)
*
* @see Function/method/class relied on
* @link URL
* @global type $varname Description.
* @global type $varname Description.
*
* @param type $var Description.
* @param type $var Optional. Description.
* @return type Description.
*/
public function update_conditions( $id, $field_type, $conditions, $group_conditions = false )
{
/*
* Group Conditions
*/
if( $group_conditions ) {
// See the comment below
$conditions['custom'] = $this->transform_operators_to_text_equivalents(
wpcf_getarr( $conditions, 'custom' )
);
$sanitized_conditions = sanitize_text_field_recursively( $conditions );
// restore condition operators (lost through sanitize_text_field_recursively())
$sanitized_conditions['conditions'] = $this->wpcf_conditions_restore_original_operators(
$sanitized_conditions['conditions'],
$conditions['conditions']
);
// Tokanizer ($this->transform_operators_to_text_equivalents)
// transforms slugs like "my-field-slug" to "my - field - slug"
// following will restore the slugs
if( isset( $sanitized_conditions['custom'] ) && ! empty( $sanitized_conditions['custom'] ) ) {
$sanitized_conditions['custom'] = preg_replace_callback(
'#\$\(([A-z0-9]*\s[\-]\s[A-z0-9]*)*\)#',
array( $this, 'callback_restore_slug_format' ),
$sanitized_conditions['custom']
);
}
update_post_meta( $id, '_wpcf_conditional_display', $sanitized_conditions );
/*
* Field Conditions
*/
} else {
$field = wpcf_fields_get_field_by_slug($id);
if ( empty( $field ) ) {
return;
}
// We're running into problems with oversanitizing comparison operators like <, >, <=, >= and <>.
// For conditions defined in the "simple" mode, this is easy to revert because they're unfolded
// into tokens from the very beginning and we can handle just the operators.
//
// For custom conditions, however, this is more difficult to do while keeping the effect of sanitization and
// not breaking the expression. That is why we're going to use the Toolset_Tokenizer to break down the
// expression, replace problematic operators by their text-only equivalents and glue the expression back
// together. Then we can pass it through sanitize_text_field without further issues.
//
// Note that this method has side-effects and limitations, see transform_operators_to_text_equivalents()
// for details.
$conditions['custom'] = $this->transform_operators_to_text_equivalents(
wpcf_getarr( $conditions, 'custom' )
);
$sanitized_conditions = sanitize_text_field_recursively( $conditions );
// restore condition operators (lost through sanitize_text_field_recursively())
$sanitized_conditions['conditions'] =
$this->wpcf_conditions_restore_original_operators(
$sanitized_conditions['conditions'],
$conditions['conditions']
);
// Tokanizer ($this->transform_operators_to_text_equivalents)
// transforms slugs like "my-field-slug" to "my - field - slug"
// following will restore the slugs
if( isset( $sanitized_conditions['custom'] ) && ! empty( $sanitized_conditions['custom'] ) ) {
$sanitized_conditions['custom'] = preg_replace_callback(
'#\$\(([A-z0-9]*\s[\-]\s[A-z0-9]*)*\)#',
array( $this, 'callback_restore_slug_format' ),
$sanitized_conditions['custom']
);
}
// Store the sanitized conditions.
$field['data']['conditional_display'] = $sanitized_conditions;
$all_types_fields = get_option( 'wpcf-fields', array() );
$all_types_fields[$id] = $field;
update_option('wpcf-fields', $all_types_fields);
}
}
/**
* Remove all conditions.
*
* @param $id
*/
public function remove_conditions( $id, $group_conditions = false )
{
if( $group_conditions ) {
delete_post_meta( $id, '_wpcf_conditional_display' );
} else {
$field = wpcf_fields_get_field_by_slug($id);
if ( empty( $field ) ) {
return;
}
$all_types_fields = get_option( 'wpcf-fields', array() );
$all_types_fields[$id]['data']['conditional_display'] = array();
update_option('wpcf-fields', $all_types_fields);
}
}
/**
* Summary.
*
* Description.
*
* @since x.x.x
* @access (for functions: only use if private)
*
* @see Function/method/class relied on
* @link URL
* @global type $varname Description.
* @global type $varname Description.
*
* @param type $var Description.
* @param type $var Optional. Description.
* @return type Description.
*/
public function field_condition_get()
{
/**
* check nonce
*/
if (
0
|| !isset($_REQUEST['_wpnonce'])
|| !isset($_REQUEST['id'])
|| !wp_verify_nonce($_REQUEST['_wpnonce'], 'wpcf-conditional-get-'.$_REQUEST['id'])
) {
$this->verification_failed_and_die();
}
/**
* get field definition
*/
require_once WPCF_EMBEDDED_INC_ABSPATH . '/fields.php';
$field = wpcf_admin_fields_get_field( sanitize_text_field( $_REQUEST['id'] ), false, true );
if ( empty( $field ) ) {
__('Wrong field.', 'wpcf');
die;
}
/**
* define conditional
*/
require_once WPCF_INC_ABSPATH.'/classes/class.types.fields.conditional.php';
new Types_Fields_Conditional();
/**
* get form data
*/
/**
* Summary.
*
* Description.
*
* @since x.x.x
*
* @param type $var Description.
* @param array $args {
* Short description about this hash.
*
* @type type $var Description.
* @type type $var Description.
* }
* @param type $var Description.
*/
$form = $this->get_field_conditionals(array(), $field);
if ( empty($form) ) {
__('Wrong field.', 'wpcf');
die;
}
/**
* produce form
*/
echo wpcf_form_simple($form);
die;
}
/**
* Summary.
*
* Description.
*
* @since x.x.x
* @access (for functions: only use if private)
*
* @see Function/method/class relied on
* @link URL
* @global type $varname Description.
* @global type $varname Description.
*
* @param boolean $return_form Description.
* @return type Description.
*/
public function group_condition_get( $return_form = false )
{
if( !isset( $_REQUEST['group_id'] ) && isset( $_REQUEST['id'] ) )
$_REQUEST['group_id'] = $_REQUEST['id'];
/**
* check nonce
*/
if (
! ( // called through custom fields group edit -> no additional nonce verify needed
isset( $_REQUEST['id'] )
&& $return_form === true
)
&& ! (
isset($_REQUEST['group_id'])
&& isset($_REQUEST['_wpnonce'])
&& wp_verify_nonce($_REQUEST['_wpnonce'], 'wpcf-conditional-get-'.$_REQUEST['group_id'] )
)
) {
$this->verification_failed_and_die();
}
/**
* get group definition
*/
$group = wpcf_admin_fields_get_group($_REQUEST['group_id']);
if ( empty( $group ) ) {
__( 'Wrong group.', 'wpcf' );
die;
}
$group['meta_type'] = 'custom-fields-group';
$group['data'] = array(
'conditional_display' => get_post_meta( $group['id'], '_wpcf_conditional_display', true ),
);
/**
* define conditional
*/
require_once WPCF_INC_ABSPATH.'/classes/class.types.fields.conditional.php';
new Types_Fields_Conditional();
/**
* get form data
*/
/**
* Summary.
*
* Description.
*
* @since x.x.x
*
* @param type $var Description.
* @param array $args {
* Short description about this hash.
*
* @type type $var Description.
* @type type $var Description.
* }
* @param type $var Description.
*/
$form = $this->get_field_conditionals(array(), $group);
if ( empty($form) ) {
__('Wrong group.', 'wpcf');
die;
}
/**
* return form
*/
if( $return_form )
return $form;
/**
* produce form
*/
echo wpcf_form_simple($form);
die;
}
/**
* @param $sanitized_conditions
* @param $original_conditions
*
* @return array
*/
protected function wpcf_conditions_restore_original_operators( $sanitized_conditions, $original_conditions ) {
// we have to restore the operator as it get sanitized by sanitize_text_field_recursively()
foreach( $sanitized_conditions as $key => $condition ) {
if(
isset( $sanitized_conditions[ $key ]['operation'] )
&& isset( $original_conditions[ $key ]['operation'] )
) {
$original_conditions[ $key ]['operation'] = trim( $original_conditions[ $key ]['operation'] );
if( preg_match( '#^([\<\>\=\!]){1,3}$#', $original_conditions[ $key ]['operation'] ) )
$sanitized_conditions[ $key ]['operation'] = $original_conditions[ $key ]['operation'];
}
}
return $sanitized_conditions;
}
/**
* Uses the Toolset_Tokenizer to break down the expression, replace problematic operators by their text-only
* equivalents and glue the expression back together.
*
* Side-effects: Loses custom whitespace characters. All operators (except parentheses) will be surrounded by spaces
* while everywhere else the whitespace characters will be trimmed.
*
* Note: If an invalid expression is provided, it doesn't do anything with it.
*
* @param string $expression Condition expression.
* @return string Equivalent expression but without <, <=, etc.
* @since 2.0
*/
protected function transform_operators_to_text_equivalents( $expression ) {
try {
// The expression may come directly from parse_str() which may add backslashes to quotes. The tokenizer
// wouldn't survive that.
$expression = stripslashes( $expression );
$toolset_bootstrap = Toolset_Common_Bootstrap::getInstance();
$toolset_bootstrap->register_parser();
$tokenizer = new Toolset_Tokenizer();
$tokens = $tokenizer->Tokanize( $expression );
$token_value_replacements = array(
'<' => 'lt',
'>' => 'gt',
'<=' => 'lte',
'>=' => 'gte',
'<>' => 'ne',
'=' => 'eq'
);
$result = '';
foreach ( $tokens as $token ) {
if ( $token->isCompOp ) {
$token->val = wpcf_getarr( $token_value_replacements, $token->val, $token->val );
}
if ( $token->isCompOp || $token->isArithmeticOp || $token->isLogicOp ) {
$result .= ' ' . $token->val . ' ';
} else if( $token->isStringLiteral ) {
$result .= '\'' . $token->val . '\'';
} else {
$result .= $token->val;
}
}
return $result;
} catch( Exception $e ) {
// Most probably we were unable to tokenize the expression. We give up.
return $expression;
}
}
/**
* Used to restore field slugs in custom logic which are ruined by Toolset_Tokenizer
* which transforms "my-field-slug" to "my - field - slug".
*
* Special thank to WordPress for not supporting anonymous functions. (>= PHP 5.3)
*
* @param $condition
* @return string
* @since 2.1
*/
protected function callback_restore_slug_format( $condition ) {
$restored_slug = str_replace( ' - ', '-', $condition[0] );
return $restored_slug;
}
}