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<?php
/**
* Form handler.
*
* Contains a bunch of helper methods as well.
*
* @package EverestForms
* @since 1.0.0
*/
defined( 'ABSPATH' ) || exit;
/**
* Form Handler class.
*/
class EVF_Form_Handler {
/**
* Fetches forms
*
* @since 1.0.0
* @param mixed $id Form ID.
* @param array $args Form Arguments.
* @return array|bool|null|WP_Post Form object.
*/
public function get( $id = '', $args = array() ) {
$forms = array();
$args = apply_filters( 'everest_forms_get_form_args', $args );
if ( false === $id ) {
return false;
}
if ( ! isset( $args['cap'] ) && ( is_admin() && ! wp_doing_ajax() ) ) {
$args['cap'] = 'everest_forms_view_form';
}
if ( ! empty( $id ) ) {
if ( ! empty( $args['cap'] ) && ! current_user_can( $args['cap'], $id ) ) {
return false;
}
$the_post = get_post( absint( $id ) );
if ( $the_post && 'everest_form' === $the_post->post_type ) {
$forms = empty( $args['content_only'] ) ? $the_post : evf_decode( $the_post->post_content );
}
} else {
// No ID provided, get multiple forms.
$args = wp_parse_args(
$args,
array(
'order' => 'DESC',
)
);
$forms = $this->get_multiple( $args );
}
if ( empty( $forms ) ) {
return false;
}
return $forms;
}
/**
* Fetch multiple forms.
*
* @since 1.7.0
*
* @param array $args Additional arguments array.
* @param bool $content_only True to return post content only.
*
* @return array
*/
public function get_multiple( $args = array(), $content_only = false ) {
$forms = array();
$user_id = get_current_user_id();
$args = apply_filters( 'everest_forms_get_multiple_forms_args', $args, $content_only );
// No ID provided, get multiple forms.
$defaults = array(
'orderby' => 'id',
'order' => 'ASC',
'no_found_rows' => true,
'nopaging' => true,
'status' => 'publish',
'post_status' => 'publish',
'numberposts' => -1,
);
$args = wp_parse_args( $args, $defaults );
$args['post_type'] = 'everest_form';
// Can user interact, lets check the view capabilities?
if ( current_user_can( 'everest_forms_view_forms' ) && ! current_user_can( 'everest_forms_view_others_forms' ) ) {
$args['author'] = $user_id;
}
if ( ! current_user_can( 'everest_forms_view_forms' ) && current_user_can( 'everest_forms_view_others_forms' ) ) {
$args['author__not_in'] = $user_id;
}
if ( ! current_user_can( 'everest_forms_view_forms' ) && ! current_user_can( 'everest_forms_view_others_forms' ) ) {
if ( isset( $args['cap'] ) && ( 'everest_forms_view_conversational_forms' !== $args['cap'] && 'everest_forms_pro_view_landing_page' !== $args['cap'] ) ) {
$args['post__in'] = array( 0 );
}
}
// For cache lets unset the cap args.
unset( $args['cap'] );
// Fetch posts.
$forms = get_posts( $args );
if ( $content_only ) {
$forms = array_map( array( $this, 'prepare_post_content' ), $forms );
}
return $forms;
}
/**
* Prepares post content.
*
* @param object $post Post object.
*/
public function prepare_post_content( $post ) {
return ! empty( $post->post_content ) ? evf_decode( $post->post_content ) : false;
}
/**
* Delete forms.
*
* @since 1.0.0
* @param array $ids Form IDs.
* @return boolean
*/
public function delete( $ids = array() ) {
if ( ! is_array( $ids ) ) {
$ids = array( $ids );
}
$ids = array_map( 'absint', $ids );
foreach ( $ids as $id ) {
// Check for permissions.
if ( ! current_user_can( 'everest_forms_delete', $id ) ) {
return false;
}
$form = wp_delete_post( $id, true );
if ( ! $form ) {
return false;
}
}
do_action( 'everest_forms_delete_form', $ids );
return true;
}
/**
* Create new form.
*
* @since 1.0.0
* @param string $title Form title.
* @param string $template Form template.
* @param array $args Form Arguments.
* @param array $data Additional data.
* @return int|bool Form ID on successful creation else false.
*/
public function create( $title = '', $template = 'blank', $args = array(), $data = array() ) {
if ( empty( $title ) || ! current_user_can( 'everest_forms_create_forms' ) ) {
return false;
}
$args = apply_filters( 'everest_forms_create_form_args', $args, $data );
$form_style = array();
$style_needed = false;
$form_content = array(
'form_field_id' => '1',
'settings' => array(
'form_title' => sanitize_text_field( $title ),
'form_desc' => '',
),
);
// Prevent content filters from corrupting JSON in post_content.
$has_kses = ( false !== has_filter( 'content_save_pre', 'wp_filter_post_kses' ) );
if ( $has_kses ) {
kses_remove_filters();
}
$has_targeted_link_rel_filters = ( false !== has_filter( 'content_save_pre', 'wp_targeted_link_rel' ) );
if ( $has_targeted_link_rel_filters ) {
wp_remove_targeted_link_rel_filters();
}
// Create a form.
$form_id = wp_insert_post(
array(
'post_title' => esc_html( $title ),
'post_status' => 'publish',
'post_type' => 'everest_form',
'post_content' => '{}',
)
);
$templates = EVF_Admin_Form_Templates::get_template_data();
$templates = is_array( $templates ) ? $templates : array();
if ( ! empty( $templates ) ) {
foreach ( $templates as $template_data ) {
if ( $template_data->slug === $template && 'blank' !== $template_data->slug ) {
$form_content = json_decode( base64_decode( $template_data->settings ), true );
if ( isset( $template_data->styles ) ) {
$style_needed = true;
$form_style[ $form_id ] = json_decode( base64_decode( $template_data->styles ), true );
}
}
}
}
if ( $form_id ) {
$form_content['id'] = $form_id;
$form_content['settings']['form_title'] = $title;
$form_content['imported_form_templates'] = $template;
$form_data = wp_parse_args(
$args,
array(
'ID' => $form_id,
'post_title' => esc_html( $title ),
'post_content' => evf_encode( array_merge( array( 'id' => $form_id ), $form_content ) ),
)
);
wp_update_post( $form_data );
if ( ! empty( $form_style ) ) {
update_option( 'everest_forms_styles', $form_style );
}
}
// Restore removed content filters.
if ( $has_kses ) {
kses_init_filters();
}
if ( $has_targeted_link_rel_filters ) {
wp_init_targeted_link_rel_filters();
}
do_action( 'everest_forms_create_form', $form_id, $form_data, $data, $style_needed );
return $form_id;
}
/**
* Updates form
*
* @since 1.0.0
*
* @param string|int $form_id Form ID.
* @param array $data Data retrieved from $_POST and processed.
* @param array $args Empty by default, may have custom data not intended to be saved.
*
* @return mixed
* @internal param string $title
*/
public function update( $form_id = '', $data = array(), $args = array() ) {
if ( empty( $data ) ) {
return false;
}
if ( empty( $form_id ) ) {
$form_id = $data['form_id'];
}
if ( ! isset( $args['cap'] ) ) {
$args['cap'] = 'everest_forms_edit_form';
}
// Check for permissions.
if ( ! empty( $args['cap'] ) && ! current_user_can( $args['cap'], $form_id ) ) {
return false;
}
$data = wp_unslash( $data );
if ( ! empty( $data['settings']['form_title'] ) ) {
$title = $data['settings']['form_title'];
} else {
$title = get_the_title( $form_id );
}
if ( ! empty( $data['settings']['form_desc'] ) ) {
$desc = $data['settings']['form_desc'];
} else {
$desc = '';
}
$data['form_field_id'] = ! empty( $data['form_field_id'] ) ? absint( $data['form_field_id'] ) : '0';
// This filter can destroy the JSON when messing with HTML.
remove_filter( 'content_save_pre', 'balanceTags', 50 );
// Don't allow tags for users who do not have appropriate cap.
if ( ! current_user_can( 'unfiltered_html' ) ) {
$data = map_deep( $data, 'wp_strip_all_tags' );
}
// Prevent content filters from corrupting JSON in post_content.
$has_kses = ( false !== has_filter( 'content_save_pre', 'wp_filter_post_kses' ) );
if ( $has_kses ) {
kses_remove_filters();
}
$has_targeted_link_rel_filters = ( false !== has_filter( 'content_save_pre', 'wp_targeted_link_rel' ) );
if ( $has_targeted_link_rel_filters ) {
wp_remove_targeted_link_rel_filters();
}
$form = array(
'ID' => $form_id,
'post_title' => esc_html( $title ),
'post_excerpt' => $desc,
'post_content' => evf_encode( $data ),
);
$form = apply_filters( 'everest_forms_save_form_args', $form, $data, $args );
$form_id = wp_update_post( $form );
// Import form styles if present.
$style_needed = false;
if ( ! empty( $data['form_styles'] ) ) {
$style_needed = true;
$form_styles = get_option( 'everest_forms_styles', array() );
$form_styles[ $form_id ] = evf_decode( $data['form_styles'] );
// Update forms styles.
update_option( 'everest_forms_styles', $form_styles );
}
// Restore removed content filters.
if ( $has_kses ) {
kses_init_filters();
}
if ( $has_targeted_link_rel_filters ) {
wp_init_targeted_link_rel_filters();
}
do_action( 'everest_forms_save_form', $form_id, $form, array(), $style_needed );
return $form_id;
}
/**
* Duplicate forms.
*
* @since 1.0.0
*
* @param array $ids Form IDs to duplicate.
*
* @return boolean
*/
public function duplicate( $ids = array() ) {
// Check for permissions.
if ( ! current_user_can( 'everest_forms_create_forms' ) ) {
return false;
}
if ( ! is_array( $ids ) ) {
$ids = array( $ids );
}
$ids = array_map( 'absint', $ids );
foreach ( $ids as $id ) {
// Get original entry.
$form = get_post( $id );
if ( ! current_user_can( 'everest_forms_view_form', $id ) ) {
return false;
}
// Confirm form exists.
if ( ! $form || empty( $form ) ) {
return false;
}
// Get the form data.
$new_form_data = evf_decode( $form->post_content );
// Get the form styles.
$form_styles = get_option( 'everest_forms_styles', array() );
if ( ! empty( $form_styles[ $id ] ) ) {
$new_form_data['form_styles'] = wp_json_encode( $form_styles[ $id ] );
}
// Remove form ID from title if present.
$new_form_data['settings']['form_title'] = str_replace( '(ID #' . absint( $id ) . ')', '', $new_form_data['settings']['form_title'] );
// Create the duplicate form.
$new_form = array(
'post_author' => $form->post_author,
'post_content' => evf_encode( $new_form_data ),
'post_excerpt' => $form->post_excerpt,
'post_status' => $form->post_status,
'post_title' => $new_form_data['settings']['form_title'],
'post_type' => $form->post_type,
);
$new_form_id = wp_insert_post( $new_form );
if ( ! $new_form_id || is_wp_error( $new_form_id ) ) {
return false;
}
// Set new form name.
$new_form_data['settings']['form_title'] .= ' (ID #' . absint( $new_form_id ) . ')';
// Set new form ID.
$new_form_data['id'] = absint( $new_form_id );
// Update new duplicate form.
$new_form_id = $this->update( $new_form_id, $new_form_data );
if ( ! $new_form_id || is_wp_error( $new_form_id ) ) {
return false;
}
return $new_form_id;
}
return true;
}
/**
* Get private meta information for a form.
*
* @since 1.1.0
*
* @param int $form_id Form ID.
* @param string $field Field.
* @param array $args Additional arguments.
*
* @return false|array
*/
public function get_meta( $form_id, $field = '', $args = array() ) {
if ( empty( $form_id ) ) {
return false;
}
if ( isset( $args['cap'] ) ) {
$defaults['cap'] = $args['cap'];
}
$data = $this->get(
$form_id,
array(
'content_only' => true,
)
);
if ( isset( $data['meta'] ) ) {
if ( empty( $field ) ) {
return $data['meta'];
} elseif ( isset( $data['meta'][ $field ] ) ) {
return $data['meta'][ $field ];
}
}
return false;
}
/**
* Get the next available field ID and increment by one.
*
* @since 1.0.0
* @param int $form_id Form ID.
* @return mixed int or false
*/
public function field_unique_key( $form_id ) {
if ( ! current_user_can( 'everest_forms_edit_form', $form_id ) ) {
return false;
}
if ( empty( $form_id ) ) {
return false;
}
$form = $this->get(
$form_id,
array(
'content_only' => true,
)
);
if ( ! empty( $form['form_field_id'] ) ) {
$form_field_id = absint( $form['form_field_id'] );
$form['form_field_id'] ++;
} else {
$form_field_id = '0';
$form['form_field_id'] = '1';
}
$this->update( $form_id, $form );
$field_id = evf_get_random_string() . '-' . $form_field_id;
return $field_id;
}
/**
* Get private meta information for a form field.
*
* @since 1.0.0
*
* @param int $form_id Form ID.
* @param string $field_id Field ID.
* @param array $args Additional arguments.
*
* @return array|bool
*/
public function get_field( $form_id, $field_id = '', $args = array() ) {
if ( empty( $form_id ) ) {
return false;
}
if ( isset( $args['cap'] ) ) {
$defaults['cap'] = $args['cap'];
}
$data = $this->get(
$form_id,
array(
'content_only' => true,
)
);
return isset( $data['form_fields'][ $field_id ] ) ? $data['form_fields'][ $field_id ] : false;
}
/**
* Get private meta information for a form field.
*
* @since 1.0.0
*
* @param int $form_id Form ID.
* @param string $field_id Field.
* @param array $args Additional arguments.
*
* @return bool
*/
public function get_field_meta( $form_id, $field_id = '', $args = array() ) {
$field = $this->get_field( $form_id, $field_id, $args );
if ( ! $field ) {
return false;
}
return isset( $field['meta'] ) ? $field['meta'] : false;
}
}