| 1 |
<?php |
| 2 |
/** |
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* Field Validation Class |
| 4 |
* |
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* Handles all field validation for SureForms |
| 6 |
* |
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* @package SureForms |
| 8 |
* @since 1.12.2 |
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*/ |
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|
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namespace SRFM\Inc; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; // Exit if accessed directly. |
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} |
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|
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/** |
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* Field Validation Class |
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*/ |
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class Field_Validation { |
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/** |
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* Add block configuration for form fields. |
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* |
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* This function processes blocks in a form and stores their configuration as post meta. |
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* It applies filters to allow extensions to modify block configs and stores processed |
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* values for blocks that need special handling (like upload fields). |
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* |
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* @param array<mixed> $blocks Array of blocks to process. |
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* @param int $form_id Form post ID. |
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* @return void |
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* @since 1.12.2 |
| 32 |
*/ |
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public static function add_block_config( $blocks, $form_id ) { |
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// Initialize array to store processed block configurations. |
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$block_config = []; |
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|
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// Loop through each block. |
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foreach ( $blocks as $block ) { |
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// Ensure $block is an array and has the required structure. |
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if ( ! is_array( $block ) ) { |
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continue; |
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} |
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if ( ! isset( $block['blockName'] ) || ! isset( $block['attrs'] ) || ! is_array( $block['attrs'] ) ) { |
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continue; |
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} |
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// Validate block id. |
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if ( ! array_key_exists( 'block_id', $block['attrs'] ) || empty( $block['attrs']['block_id'] ) || ! is_string( $block['attrs']['block_id'] ) ) { |
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continue; |
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} |
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|
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$block_id = sanitize_text_field( $block['attrs']['block_id'] ); |
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$block_name = $block['blockName']; |
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|
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// Process specific block types. |
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$processed_config = null; |
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|
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switch ( $block_name ) { |
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case 'srfm/payment': |
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$processed_config = self::process_payment_block( $block['attrs'], $blocks ); |
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break; |
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case 'srfm/dropdown': |
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$processed_config = self::process_dropdown_block( $block['attrs'] ); |
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break; |
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case 'srfm/multi-choice': |
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$processed_config = self::process_multichoice_block( $block['attrs'] ); |
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break; |
| 67 |
case 'srfm/number': |
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$processed_config = self::process_number_block( $block['attrs'] ); |
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break; |
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case 'srfm/textarea': |
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$processed_config = self::process_textarea_block( $block['attrs'] ); |
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break; |
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} |
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|
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// If block was processed, store its configuration. |
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if ( null !== $processed_config && ! empty( $processed_config ) ) { |
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$processed_config['block_name'] = $block_name; |
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// Add the slug to the configuration. |
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if ( isset( $block['attrs']['slug'] ) && ! empty( $block['attrs']['slug'] ) ) { |
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$processed_config['slug'] = sanitize_text_field( $block['attrs']['slug'] ); |
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} |
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|
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$block_config[ $block_id ] = $processed_config; |
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continue; |
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} |
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|
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// Allow extensions to process and modify block config. |
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$config = apply_filters( 'srfm_block_config', [ 'block' => $block ] ); |
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|
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// If block was processed by a filter, add its processed value. |
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if ( isset( $config['processed_value'] ) && ! empty( $config['processed_value'] ) ) { |
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$block_config[ $block_id ] = $config['processed_value']; |
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continue; |
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} |
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} |
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|
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// Sync the meta on every save. When $block_config is empty (e.g. a textarea |
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// whose minLength was cleared, with no other blocks needing per-block |
| 99 |
// validation), we must clear the stored meta — otherwise the previously |
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// saved values keep being used by the validator. |
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if ( ! empty( $block_config ) ) { |
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update_post_meta( $form_id, '_srfm_block_config', $block_config ); |
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} else { |
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delete_post_meta( $form_id, '_srfm_block_config' ); |
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} |
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} |
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|
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/** |
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* Retrieve or migrate the block configuration for legacy forms. |
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* |
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* This function checks if the _srfm_block_config post meta exists for the given form ID. |
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* Example: get_post_meta( 123, '_srfm_block_config', true ) might return an array of block configs. |
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* If not found, it attempts to parse the form's post content and generate the block config. |
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* Example: If a legacy form with ID 123 has no _srfm_block_config, but its post_content contains blocks, |
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* the function will parse those blocks and call add_block_config() to generate and store the config. |
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* |
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* @param int $form_id The ID of the form post. |
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* @since 1.12.2 |
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* @return array|null The block configuration array, or null if not found or invalid. |
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*/ |
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public static function get_or_migrate_block_config_for_legacy_form( $form_id ) { |
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// Validate that $form_id is a positive integer. |
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// Example: $form_id = 123 is valid; $form_id = -1 or 'abc' is not. |
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if ( ! is_int( $form_id ) || $form_id <= 0 ) { |
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return null; |
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} |
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|
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// Retrieve the block config from post meta. |
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// Example: $block_config = [ 'block-1' => [ ... ], 'block-2' => [ ... ] ]. |
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$block_config = get_post_meta( $form_id, '_srfm_block_config', true ); |
| 131 |
if ( ! empty( $block_config ) && is_array( $block_config ) ) { |
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// If it exists and is an array, return it directly (no migration needed). |
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// Example: Returning the existing $block_config array. |
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return $block_config; |
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} |
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|
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// Get the post by ID and validate. |
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// Example: $post = get_post( 123 ); $post->post_content should contain block markup. |
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$post = get_post( $form_id ); |
| 140 |
if ( ! ( $post instanceof \WP_Post ) || empty( $post->post_content ) ) { |
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return null; |
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} |
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|
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// Parse the blocks from the post content and attempt migration. |
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// Example: $blocks = parse_blocks( $post->post_content ); $blocks is an array of block arrays. |
| 146 |
if ( function_exists( 'parse_blocks' ) ) { |
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$blocks = parse_blocks( $post->post_content ); |
| 148 |
if ( is_array( $blocks ) && ! empty( $blocks ) ) { |
| 149 |
self::add_block_config( $blocks, $form_id ); |
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} |
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} |
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|
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// Retrieve the block config again after migration attempt. |
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// Example: After migration, $block_config should now be an array if successful. |
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$block_config = get_post_meta( $form_id, '_srfm_block_config', true ); |
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|
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return ! empty( $block_config ) && is_array( $block_config ) ? $block_config : null; |
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} |
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|
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/** |
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* Prepare validation data for a given form. |
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* |
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* Retrieves the form block configuration from post meta and adds a 'name_with_id' |
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* key to each block, which is a unique identifier for the field (used for validation). |
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* |
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* @param int $current_form_id The ID of the form post. |
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* @since 1.12.2 |
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* @return array|null The processed form configuration array, or null if not found. |
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*/ |
| 170 |
public static function prepared_validation_data( $current_form_id ) { |
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// Retrieve the form block configuration from post meta. |
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$get_form_config = self::get_or_migrate_block_config_for_legacy_form( $current_form_id ); |
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|
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// If the configuration is an array, add a 'name_with_id' key to each block. |
| 175 |
if ( is_array( $get_form_config ) ) { |
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foreach ( $get_form_config as $index => $block ) { |
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// Ensure both 'blockName' and 'block_id' exist before creating the identifier. |
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if ( isset( $block['blockName'] ) ) { |
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// 'name_with_id' is used as a unique field identifier for validation. |
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// Example: 'sureforms-input-abc123' for blockName 'sureforms/input' and block_id 'abc123' |
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$name_with_id = str_replace( '/', '-', $block['blockName'] ) . '-' . $index; |
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|
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// Allow custom filter based on block type. |
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$name_with_id = apply_filters( |
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'srfm_block_config_name_with_id', |
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$name_with_id, |
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$block |
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); |
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|
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$get_form_config[ $index ]['name_with_id'] = $name_with_id; |
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} |
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} |
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} |
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|
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// Return the processed configuration array, or an empty array if not found. |
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return is_array( $get_form_config ) ? $get_form_config : []; |
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} |
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|
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/** |
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* Build the set of block ids that legitimately belong to a form. |
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* |
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* Walks the form's block markup and collects the `block_id` of every SureForms |
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* (`srfm/*`) block, recursing into `innerBlocks` (so repeater/container children are |
| 204 |
* included) and expanding `core/block` reusable/synced pattern references into their |
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* `wp_block` post (so pattern-embedded fields are included too). A cycle guard on the |
| 206 |
* reference ids prevents infinite recursion. |
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* |
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* Used by {@see self::strip_unknown_field_keys()}, which DROPS submitted keys whose |
| 209 |
* block id is not part of the form rather than rejecting the submission — see the |
| 210 |
* note there for why rejecting made cached forms unsubmittable. |
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* |
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* Note: this is deliberately NOT `prepared_validation_data()` |
| 213 |
* — that map only holds blocks with extra validation config (dropdowns, payments, |
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* textarea min-length) and omits plain inputs, so it is not a field allowlist. |
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* |
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* @param int|mixed $form_id The form post id. |
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* @since 2.12.3 |
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* @return array<string,true> Map of known block id => true. Empty when the form's |
| 219 |
* blocks could not be derived (callers should fail open). |
| 220 |
*/ |
| 221 |
public static function get_known_field_block_ids( $form_id ) { |
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$form_id = Helper::get_integer_value( $form_id ); |
| 223 |
if ( $form_id <= 0 ) { |
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return []; |
| 225 |
} |
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|
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$walked = self::get_field_identifiers( $form_id ); |
| 228 |
|
| 229 |
/** |
| 230 |
* Filter the set of block ids considered valid for a form during submission. |
| 231 |
* |
| 232 |
* Extensions that inject legitimate fields not present in the form's own block |
| 233 |
* markup (for example dynamically generated keys) can add their block ids here so |
| 234 |
* those submissions are not dropped as unknown. |
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* |
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* Expects a map of `block_id => true`. A plain list of ids is accepted and |
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* converted; any other return value is ignored in favour of the walked set. |
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* |
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* @since 2.12.3 |
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* @param array<string,true> $ids Map of known block id => true. |
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* @param int $form_id The form post id. |
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*/ |
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$ids = apply_filters( 'srfm_known_field_block_ids', $walked['ids'], $form_id ); |
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|
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// Coerce defensively. A callback returning a list (`[ 'aaa', 'bbb' ]`) rather |
| 246 |
// than a map would otherwise make every real field look unknown, and a non-array |
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// return would drop the whole allowlist — so fall back to the walked set instead |
| 248 |
// of silently turning the check off. |
| 249 |
if ( ! is_array( $ids ) ) { |
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return $walked['ids']; |
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} |
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|
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return wp_is_numeric_array( $ids ) ? array_fill_keys( array_map( 'strval', $ids ), true ) : $ids; |
| 254 |
} |
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|
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/** |
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* The slugs of every SureForms field the form defines, block_id => true style. |
| 258 |
* |
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* A slug is stable across renders where a block_id is not, so it is the identifier |
| 260 |
* used to keep a submitted field whose block_id drifted (full-page cache, an editor |
| 261 |
* rebuild). Mirrors get_known_field_block_ids(): one memoised walk, an unmemoised |
| 262 |
* filter pass. |
| 263 |
* |
| 264 |
* @param int|mixed $form_id The form post id. |
| 265 |
* @since 2.12.7 |
| 266 |
* @return array<string,true> Map of known slug => true. |
| 267 |
*/ |
| 268 |
public static function get_known_field_slugs( $form_id ) { |
| 269 |
$form_id = Helper::get_integer_value( $form_id ); |
| 270 |
if ( $form_id <= 0 ) { |
| 271 |
return []; |
| 272 |
} |
| 273 |
|
| 274 |
$walked = self::get_field_identifiers( $form_id ); |
| 275 |
|
| 276 |
/** |
| 277 |
* Filter the set of field slugs considered valid for a form during submission. |
| 278 |
* |
| 279 |
* @since 2.12.7 |
| 280 |
* @param array<string,true> $slugs Map of known slug => true. |
| 281 |
* @param int $form_id The form post id. |
| 282 |
*/ |
| 283 |
$slugs = apply_filters( 'srfm_known_field_slugs', $walked['slugs'], $form_id ); |
| 284 |
|
| 285 |
if ( ! is_array( $slugs ) ) { |
| 286 |
return $walked['slugs']; |
| 287 |
} |
| 288 |
|
| 289 |
return wp_is_numeric_array( $slugs ) ? array_fill_keys( array_map( 'strval', $slugs ), true ) : $slugs; |
| 290 |
} |
| 291 |
|
| 292 |
/** |
| 293 |
* Remove submitted field keys the form does not define. |
| 294 |
* |
| 295 |
* SECURITY INVARIANT — every submitted key must be checked against the form's own |
| 296 |
* definition. The `-lbl-` substring proves only that a key LOOKS like a SureForms |
| 297 |
* field, not that this form actually defines it, so shape alone is never sufficient: |
| 298 |
* only keys the form declares may reach storage, email or export. |
| 299 |
* |
| 300 |
* Unknown keys are dropped rather than rejected. Rejecting looked safer but behaved |
| 301 |
* badly: the allowlist is derived from `post_content` at submit time while the |
| 302 |
* visitor's HTML was rendered earlier, so full-page caching or an editor-side |
| 303 |
* `block_id` reassignment would make an otherwise valid form unsubmittable behind an |
| 304 |
* error the visitor cannot act on. Dropping meets the same security goal — the |
| 305 |
* invented key never reaches storage, email or export — without that failure mode. |
| 306 |
* |
| 307 |
* Repeater rows arrive as `repeaterKey[index][childKey]`, which PHP collapses into a |
| 308 |
* single top-level key holding nested arrays. Those child keys are copied verbatim by |
| 309 |
* Pro's `process_repeater_field()` and label-decoded downstream, so they are walked |
| 310 |
* here too; the allowlist already contains repeater children because the collector |
| 311 |
* recurses into `innerBlocks`. |
| 312 |
* |
| 313 |
* @param array<mixed> $form_data The submitted form data (sanitized). |
| 314 |
* @param int|mixed $form_id The ID of the form being submitted. |
| 315 |
* @since 2.12.3 |
| 316 |
* @return array<mixed> The form data with unknown field keys removed. |
| 317 |
*/ |
| 318 |
public static function strip_unknown_field_keys( $form_data, $form_id ) { |
| 319 |
if ( ! is_array( $form_data ) ) { |
| 320 |
return []; |
| 321 |
} |
| 322 |
|
| 323 |
$form_id_int = Helper::get_integer_value( $form_id ); |
| 324 |
$known_block_ids = self::get_known_field_block_ids( $form_id_int ); |
| 325 |
$known_slugs = self::get_known_field_slugs( $form_id_int ); |
| 326 |
|
| 327 |
// Fail open. The sets are empty only when the form's blocks could not be derived |
| 328 |
// (no/empty post_content, a parse failure, or a structure this walk does not |
| 329 |
// recognise). Enforcing on an empty set would strip every field. |
| 330 |
if ( empty( $known_block_ids ) && empty( $known_slugs ) ) { |
| 331 |
return $form_data; |
| 332 |
} |
| 333 |
|
| 334 |
foreach ( $form_data as $key => $value ) { |
| 335 |
if ( ! is_string( $key ) || false === strpos( $key, '-lbl-' ) ) { |
| 336 |
continue; |
| 337 |
} |
| 338 |
|
| 339 |
// Keep the field when EITHER its block_id OR its slug matches the form. The |
| 340 |
// block_id can drift between the (possibly full-page-cached) HTML the visitor |
| 341 |
// submitted and the current post_content; the slug does not, so requiring only |
| 342 |
// a block_id match silently deleted real submissions (#1517643). A key with |
| 343 |
// neither a known block_id nor a known slug is genuinely foreign and dropped. |
| 344 |
if ( ! self::field_key_belongs_to_form( $key, $known_block_ids, $known_slugs ) ) { |
| 345 |
unset( $form_data[ $key ] ); |
| 346 |
continue; |
| 347 |
} |
| 348 |
|
| 349 |
// A known key whose value is an array is a repeater: walk its rows. |
| 350 |
if ( is_array( $value ) ) { |
| 351 |
$form_data[ $key ] = self::strip_unknown_repeater_keys( $value, $known_block_ids, $known_slugs ); |
| 352 |
} |
| 353 |
} |
| 354 |
|
| 355 |
return $form_data; |
| 356 |
} |
| 357 |
|
| 358 |
/** |
| 359 |
* Validate form data for a given form. |
| 360 |
* |
| 361 |
* This function checks each field in the submitted form data (including uploaded files) |
| 362 |
* and applies the 'srfm_validate_form_data' filter to validate each field according to |
| 363 |
* its configuration. Only fields with keys containing '-lbl-' (SureForms fields) are processed. |
| 364 |
* If a field fails validation, its error message is added to the $not_valid_fields array. |
| 365 |
* |
| 366 |
* @param array<mixed> $form_data The submitted form data (sanitized). |
| 367 |
* @param int|mixed $current_form_id The ID of the form being validated. |
| 368 |
* @since 1.12.2 |
| 369 |
* @return array An array of invalid fields and their error messages. Empty if all fields are valid. |
| 370 |
*/ |
| 371 |
public static function validate_form_data( $form_data, $current_form_id ) { |
| 372 |
if ( ! is_array( $form_data ) || ! is_numeric( $current_form_id ) ) { |
| 373 |
return []; |
| 374 |
} |
| 375 |
|
| 376 |
// Holds fields that are not valid. Example: [ 'srfm-email-c867d9d9-lbl-email' => 'This field is required.' ]. |
| 377 |
$not_valid_fields = []; |
| 378 |
|
| 379 |
// Retrieve the processed form configuration for validation. |
| 380 |
$get_form_config = self::prepared_validation_data( Helper::get_integer_value( $current_form_id ) ); |
| 381 |
|
| 382 |
$form_data = apply_filters( 'srfm_field_validation_data', $form_data ); |
| 383 |
|
| 384 |
// Iterate over each field in the form data. |
| 385 |
foreach ( $form_data as $key => $value ) { |
| 386 |
/** |
| 387 |
* Only process SureForms fields. |
| 388 |
* The '-lbl-' substring is mandatory in SureForms field keys. |
| 389 |
* Example: $key = 'srfm-email-c867d9d9-lbl-email' |
| 390 |
*/ |
| 391 |
if ( false === strpos( $key, '-lbl-' ) ) { |
| 392 |
continue; |
| 393 |
} |
| 394 |
|
| 395 |
$get_name_with_id = explode( '-lbl-', $key ); |
| 396 |
// Extract the block id, i.e. the segment right before the first '-lbl-'. |
| 397 |
// Example: $get_name_with_id[0] = "srfm-email-c867d9d9" => "c867d9d9". |
| 398 |
// |
| 399 |
// Uses the shared Helper so submission agrees with every downstream consumer |
| 400 |
// of a field key (entries export, uniqueness check, smart tags). A local |
| 401 |
// regex here would define a second, subtly different notion of "the block |
| 402 |
// id" and the two could disagree on a legacy id. |
| 403 |
$extracted_id = is_string( $key ) ? Helper::get_block_id_from_key( $key ) : ''; |
| 404 |
|
| 405 |
// $get_slug will be the slug after the first hyphen in the second part. |
| 406 |
// Example: $get_name_with_id[1] = "email" or "field-email", $get_slug = "email". |
| 407 |
$get_slug = isset( $get_name_with_id[1] ) ? preg_replace( '/^[^-]+-/', '', $get_name_with_id[1] ) : ''; |
| 408 |
|
| 409 |
// $get_field_name is the field name without the block id. |
| 410 |
// Example: "srfm-email-c867d9d9" => "srfm-email". |
| 411 |
$get_field_name = str_replace( '-' . $extracted_id, '', $get_name_with_id[0] ); |
| 412 |
|
| 413 |
// Apply the validation filter for the current field. |
| 414 |
// Example: Passes all relevant field data to the filter for validation. |
| 415 |
$field_validated = apply_filters( |
| 416 |
'srfm_validate_form_data', |
| 417 |
[ |
| 418 |
'field_key' => $key, |
| 419 |
'field_value' => $value, |
| 420 |
'form_id' => $current_form_id, |
| 421 |
'form_config' => $get_form_config, |
| 422 |
'block_id' => $extracted_id, |
| 423 |
'block_slug' => $get_slug, |
| 424 |
'name_with_id' => $get_name_with_id[0], |
| 425 |
'field_name' => $get_field_name, |
| 426 |
] |
| 427 |
); |
| 428 |
|
| 429 |
// Check the result of the validation. |
| 430 |
// Example: $field_validated = [ 'validated' => false, 'error' => 'This field is required.' ]. |
| 431 |
if ( isset( $field_validated['validated'] ) ) { |
| 432 |
// If the field is valid, skip to the next field. |
| 433 |
if ( true === $field_validated['validated'] ) { |
| 434 |
continue; |
| 435 |
} |
| 436 |
|
| 437 |
// If the field is not valid, add the error message to the result array. |
| 438 |
// Example: $not_valid_fields[ 'srfm-email-c867d9d9-lbl-email' ] = 'This field is required.'. |
| 439 |
if ( false === $field_validated['validated'] ) { |
| 440 |
$not_valid_fields[ $key ] = $field_validated['error'] ?? __( 'Field is not valid.', 'sureforms' ); |
| 441 |
} |
| 442 |
} |
| 443 |
|
| 444 |
// Textarea minimum character server-side validation. |
| 445 |
if ( 'srfm-textarea' === $get_field_name && is_string( $value ) && '' !== $value ) { |
| 446 |
$block_config = isset( $get_form_config[ $extracted_id ] ) && is_array( $get_form_config[ $extracted_id ] ) ? $get_form_config[ $extracted_id ] : []; |
| 447 |
$min_length = isset( $block_config['min_length'] ) ? absint( $block_config['min_length'] ) : 0; |
| 448 |
if ( $min_length > 0 && mb_strlen( $value ) < $min_length ) { |
| 449 |
$dynamic_messages = Translatable::dynamic_validation_messages(); |
| 450 |
$min_chars_message = isset( $dynamic_messages['srfm_textarea_min_chars'] ) && is_string( $dynamic_messages['srfm_textarea_min_chars'] ) && '' !== $dynamic_messages['srfm_textarea_min_chars'] |
| 451 |
? $dynamic_messages['srfm_textarea_min_chars'] |
| 452 |
/* translators: %s represents the minimum number of characters required */ |
| 453 |
: __( 'Please enter at least %s characters.', 'sureforms' ); |
| 454 |
$not_valid_fields[ $key ] = sprintf( $min_chars_message, $min_length ); |
| 455 |
} |
| 456 |
} |
| 457 |
|
| 458 |
// Email field RFC 5321 length limits (local part / domain), overridable via filter. |
| 459 |
// Only the main email value is in form data (the confirm input has no `name`), |
| 460 |
// so the server validates that value; the client mirrors this for both inputs. |
| 461 |
// Split on the LAST @ per RFC 5321 so the local part may contain a quoted @. |
| 462 |
$at_pos = is_string( $value ) && '' !== $value ? strrpos( $value, '@' ) : false; |
| 463 |
if ( 'srfm-email' === $get_field_name && is_string( $value ) && false !== $at_pos ) { |
| 464 |
$email_limits = self::get_email_char_limits(); |
| 465 |
$local_max = $email_limits['local']; |
| 466 |
$domain_max = $email_limits['domain']; |
| 467 |
$local_len = mb_strlen( substr( $value, 0, $at_pos ) ); |
| 468 |
$domain_len = mb_strlen( substr( $value, $at_pos + 1 ) ); |
| 469 |
|
| 470 |
$dynamic_messages = Translatable::dynamic_validation_messages(); |
| 471 |
if ( $local_max > 0 && $local_len > $local_max ) { |
| 472 |
$local_message = isset( $dynamic_messages['srfm_email_local_max_length'] ) && is_string( $dynamic_messages['srfm_email_local_max_length'] ) && '' !== $dynamic_messages['srfm_email_local_max_length'] |
| 473 |
? $dynamic_messages['srfm_email_local_max_length'] |
| 474 |
/* translators: %s: maximum characters allowed before the @ symbol. */ |
| 475 |
: __( 'The part before @ may not exceed %s characters.', 'sureforms' ); |
| 476 |
$not_valid_fields[ $key ] = sprintf( $local_message, $local_max ); |
| 477 |
} elseif ( $domain_max > 0 && $domain_len > $domain_max ) { |
| 478 |
$domain_message = isset( $dynamic_messages['srfm_email_domain_max_length'] ) && is_string( $dynamic_messages['srfm_email_domain_max_length'] ) && '' !== $dynamic_messages['srfm_email_domain_max_length'] |
| 479 |
? $dynamic_messages['srfm_email_domain_max_length'] |
| 480 |
/* translators: %s: maximum characters allowed after the @ symbol. */ |
| 481 |
: __( 'The part after @ may not exceed %s characters.', 'sureforms' ); |
| 482 |
$not_valid_fields[ $key ] = sprintf( $domain_message, $domain_max ); |
| 483 |
} |
| 484 |
} |
| 485 |
} |
| 486 |
|
| 487 |
// Return the array of invalid fields and their error messages. |
| 488 |
// Example: [ 'srfm-email-c867d9d9-lbl-email' => 'This field is required.' ]. |
| 489 |
return $not_valid_fields; |
| 490 |
} |
| 491 |
|
| 492 |
/** |
| 493 |
* Resolve the Email field character limits (RFC 5321), split on the last @. |
| 494 |
* |
| 495 |
* Single source of truth shared by the server validation and the limits localized to the |
| 496 |
* frontend script, so a filter override applies consistently to both. |
| 497 |
* |
| 498 |
* @return array{local:int,domain:int} Resolved limits. A value of 0 disables that check. |
| 499 |
* @since 2.12.1 |
| 500 |
*/ |
| 501 |
public static function get_email_char_limits() { |
| 502 |
/** |
| 503 |
* Filters the Email field character limits (RFC 5321). |
| 504 |
* |
| 505 |
* @param array $limits { |
| 506 |
* Character limits for the email value, split on the last @. |
| 507 |
* |
| 508 |
* @type int $local Max characters before the @. 0 disables the check. Default 64. |
| 509 |
* @type int $domain Max characters after the @. 0 disables the check. Default 255. |
| 510 |
* } |
| 511 |
* @since 2.12.1 |
| 512 |
*/ |
| 513 |
$email_limits = apply_filters( |
| 514 |
'srfm_email_field_char_limits', |
| 515 |
[ |
| 516 |
'local' => 64, |
| 517 |
'domain' => 255, |
| 518 |
] |
| 519 |
); |
| 520 |
|
| 521 |
return [ |
| 522 |
'local' => isset( $email_limits['local'] ) ? absint( $email_limits['local'] ) : 64, |
| 523 |
'domain' => isset( $email_limits['domain'] ) ? absint( $email_limits['domain'] ) : 255, |
| 524 |
]; |
| 525 |
} |
| 526 |
|
| 527 |
/** |
| 528 |
* The walked allowlists for one form, memoised for the request. |
| 529 |
* |
| 530 |
* One cache, not one per getter. Both public getters need the same walk, and each |
| 531 |
* holding its own `static $cache` meant parse_blocks() plus the recursive collect |
| 532 |
* ran twice for every submission -- once for the ids and again for the slugs -- |
| 533 |
* on a form whose markup can be large. |
| 534 |
* |
| 535 |
* Only the walk is memoised. The filtered results deliberately are not: a third |
| 536 |
* party returning a malformed value would otherwise poison the set for the rest of |
| 537 |
* the request, and because the lookup short-circuits on isset() the walk would |
| 538 |
* never be retried. |
| 539 |
* |
| 540 |
* @param int $form_id The form post id, already normalised by the callers. |
| 541 |
* @since 2.12.8 |
| 542 |
* @return array{ids:array<string,true>,slugs:array<string,true>} |
| 543 |
*/ |
| 544 |
private static function get_field_identifiers( $form_id ) { |
| 545 |
static $cache = []; |
| 546 |
|
| 547 |
if ( ! isset( $cache[ $form_id ] ) ) { |
| 548 |
$cache[ $form_id ] = self::walk_field_identifiers( $form_id ); |
| 549 |
} |
| 550 |
|
| 551 |
return $cache[ $form_id ]; |
| 552 |
} |
| 553 |
|
| 554 |
/** |
| 555 |
* Walk a form's blocks once, returning both the block-id and slug allowlists. |
| 556 |
* |
| 557 |
* @param int $form_id The form post id. |
| 558 |
* @since 2.12.7 |
| 559 |
* @return array{ids:array<string,true>,slugs:array<string,true>} |
| 560 |
*/ |
| 561 |
private static function walk_field_identifiers( $form_id ) { |
| 562 |
$ids = []; |
| 563 |
$slugs = []; |
| 564 |
$post = get_post( $form_id ); |
| 565 |
|
| 566 |
if ( $post instanceof \WP_Post && ! empty( $post->post_content ) && function_exists( 'parse_blocks' ) ) { |
| 567 |
$visited = []; |
| 568 |
self::collect_field_block_ids( parse_blocks( $post->post_content ), $ids, $slugs, $visited ); |
| 569 |
} |
| 570 |
|
| 571 |
return [ |
| 572 |
'ids' => $ids, |
| 573 |
'slugs' => $slugs, |
| 574 |
]; |
| 575 |
} |
| 576 |
|
| 577 |
/** |
| 578 |
* Whether a submitted field key belongs to the form, by block_id or by slug. |
| 579 |
* |
| 580 |
* @param string $key Submitted field key. |
| 581 |
* @param array<string,true> $known_block_ids Allowlisted block ids. |
| 582 |
* @param array<string,true> $known_slugs Allowlisted field slugs. |
| 583 |
* @since 2.12.7 |
| 584 |
* @return bool |
| 585 |
*/ |
| 586 |
private static function field_key_belongs_to_form( $key, $known_block_ids, $known_slugs ) { |
| 587 |
if ( isset( $known_block_ids[ Helper::get_block_id_from_key( $key ) ] ) ) { |
| 588 |
return true; |
| 589 |
} |
| 590 |
|
| 591 |
$slug = self::get_slug_from_key( $key ); |
| 592 |
|
| 593 |
return '' !== $slug && isset( $known_slugs[ $slug ] ); |
| 594 |
} |
| 595 |
|
| 596 |
/** |
| 597 |
* Extract a field's slug from its submitted key. |
| 598 |
* |
| 599 |
* A key is `srfm-<type>-<block_id>-lbl-<base64 label>-<slug>`. Helper::encode() is |
| 600 |
* padding-stripped standard base64 and never contains a hyphen, so the slug is |
| 601 |
* everything after the first hyphen that follows `-lbl-` (the slug itself may |
| 602 |
* contain hyphens, which is why only the first is used as the boundary). |
| 603 |
* |
| 604 |
* @param string $key Submitted field key. |
| 605 |
* @since 2.12.7 |
| 606 |
* @return string The slug, or '' when it cannot be derived. |
| 607 |
*/ |
| 608 |
private static function get_slug_from_key( $key ) { |
| 609 |
if ( ! is_string( $key ) || false === strpos( $key, '-lbl-' ) ) { |
| 610 |
return ''; |
| 611 |
} |
| 612 |
|
| 613 |
$parts = explode( '-lbl-', $key ); |
| 614 |
$after = $parts[1] ?? ''; |
| 615 |
$pos = strpos( $after, '-' ); |
| 616 |
|
| 617 |
return false === $pos ? '' : substr( $after, $pos + 1 ); |
| 618 |
} |
| 619 |
|
| 620 |
/** |
| 621 |
* Remove unknown child field keys from repeater rows. |
| 622 |
* |
| 623 |
* @param array<mixed> $rows The repeater's submitted rows. |
| 624 |
* @param array<string,true> $known_block_ids Map of block ids belonging to the form. |
| 625 |
* @param array<string,true> $known_slugs Map of field slugs belonging to the form. |
| 626 |
* @since 2.12.3 |
| 627 |
* @return array<mixed> The rows with unknown child keys removed. |
| 628 |
*/ |
| 629 |
private static function strip_unknown_repeater_keys( $rows, $known_block_ids, $known_slugs = [] ) { |
| 630 |
foreach ( $rows as $index => $row ) { |
| 631 |
if ( ! is_array( $row ) ) { |
| 632 |
continue; |
| 633 |
} |
| 634 |
|
| 635 |
foreach ( array_keys( $row ) as $child_key ) { |
| 636 |
if ( ! is_string( $child_key ) || false === strpos( $child_key, '-lbl-' ) ) { |
| 637 |
continue; |
| 638 |
} |
| 639 |
|
| 640 |
if ( ! self::field_key_belongs_to_form( $child_key, $known_block_ids, $known_slugs ) ) { |
| 641 |
unset( $row[ $child_key ] ); |
| 642 |
} |
| 643 |
} |
| 644 |
|
| 645 |
$rows[ $index ] = $row; |
| 646 |
} |
| 647 |
|
| 648 |
return $rows; |
| 649 |
} |
| 650 |
|
| 651 |
/** |
| 652 |
* Recursively collect SureForms block ids from a parsed block tree. |
| 653 |
* |
| 654 |
* @param array<mixed> $blocks Parsed blocks from parse_blocks(). |
| 655 |
* @param array<string,true> $ids Accumulator of block id => true (by reference). |
| 656 |
* @param array<string,true> $slugs Accumulator of field slug => true (by reference). |
| 657 |
* @param array<int,true> $visited Expanded reusable-block post ids, guards cycles. |
| 658 |
* @param int $depth Current recursion depth, guards pathological trees. |
| 659 |
* @since 2.12.3 |
| 660 |
* @return void |
| 661 |
*/ |
| 662 |
private static function collect_field_block_ids( $blocks, &$ids, &$slugs, &$visited, $depth = 0 ) { |
| 663 |
if ( ! is_array( $blocks ) || $depth > 50 ) { |
| 664 |
return; |
| 665 |
} |
| 666 |
|
| 667 |
foreach ( $blocks as $block ) { |
| 668 |
if ( ! is_array( $block ) ) { |
| 669 |
continue; |
| 670 |
} |
| 671 |
|
| 672 |
$attrs = isset( $block['attrs'] ) && is_array( $block['attrs'] ) ? $block['attrs'] : []; |
| 673 |
$block_name = isset( $block['blockName'] ) && is_string( $block['blockName'] ) ? $block['blockName'] : ''; |
| 674 |
|
| 675 |
// Stored raw, deliberately. The lookup side derives the id from the submitted |
| 676 |
// key via Helper::get_block_id_from_key(), which does not sanitise — putting |
| 677 |
// sanitize_text_field() only on this side would file any id the sanitiser |
| 678 |
// alters under a different string than the one looked up, making a legitimate |
| 679 |
// field permanently unsubmittable. These are map keys used for comparison |
| 680 |
// only; nothing is echoed from here. |
| 681 |
if ( 0 === strpos( $block_name, 'srfm/' ) ) { |
| 682 |
if ( ! empty( $attrs['block_id'] ) && is_string( $attrs['block_id'] ) ) { |
| 683 |
$ids[ $attrs['block_id'] ] = true; |
| 684 |
} |
| 685 |
// Also index by slug. The block_id is rebuilt when the editor recreates a |
| 686 |
// field and can differ between the cached HTML a visitor submitted and the |
| 687 |
// current post_content, but the slug is the stable field identifier — so a |
| 688 |
// slug match keeps a legitimately-submitted field whose block_id drifted. |
| 689 |
if ( ! empty( $attrs['slug'] ) && is_string( $attrs['slug'] ) ) { |
| 690 |
$slugs[ $attrs['slug'] ] = true; |
| 691 |
} |
| 692 |
} |
| 693 |
|
| 694 |
// Expand reusable/synced patterns so fields living inside a pattern count as |
| 695 |
// part of the form. |
| 696 |
if ( 'core/block' === $block_name && ! empty( $attrs['ref'] ) && is_scalar( $attrs['ref'] ) ) { |
| 697 |
$ref = absint( $attrs['ref'] ); |
| 698 |
if ( $ref > 0 && ! isset( $visited[ $ref ] ) ) { |
| 699 |
$visited[ $ref ] = true; |
| 700 |
$ref_post = get_post( $ref ); |
| 701 |
if ( $ref_post instanceof \WP_Post && 'wp_block' === $ref_post->post_type && '' !== $ref_post->post_content ) { |
| 702 |
self::collect_field_block_ids( parse_blocks( $ref_post->post_content ), $ids, $slugs, $visited, $depth + 1 ); |
| 703 |
} |
| 704 |
} |
| 705 |
} |
| 706 |
|
| 707 |
if ( ! empty( $block['innerBlocks'] ) && is_array( $block['innerBlocks'] ) ) { |
| 708 |
self::collect_field_block_ids( $block['innerBlocks'], $ids, $slugs, $visited, $depth + 1 ); |
| 709 |
} |
| 710 |
} |
| 711 |
} |
| 712 |
|
| 713 |
/** |
| 714 |
* Process payment block configuration. |
| 715 |
* |
| 716 |
* @param array<mixed> $attrs Block attributes. |
| 717 |
* @param array<mixed> $blocks All blocks. |
| 718 |
* @return array Processed payment configuration. |
| 719 |
* @since 2.3.0 |
| 720 |
*/ |
| 721 |
private static function process_payment_block( $attrs, $blocks ) { |
| 722 |
$payment_config = []; |
| 723 |
|
| 724 |
// Extract payment type (single or subscription). |
| 725 |
$payment_config['payment_type'] = isset( $attrs['paymentType'] ) && is_string( $attrs['paymentType'] ) ? sanitize_text_field( $attrs['paymentType'] ) : 'one-time'; |
| 726 |
|
| 727 |
// Persist subscription plan (interval + billing cycles) for any form that |
| 728 |
// has a subscription path. The admin picks a single value for each in the |
| 729 |
// editor; the server uses these stored values as the source of truth on |
| 730 |
// submit so a tampered interval/cycles in form data cannot redirect Stripe |
| 731 |
// to a different billing cadence. |
| 732 |
if ( in_array( $payment_config['payment_type'], [ 'subscription', 'both' ], true ) && isset( $attrs['subscriptionPlan'] ) && is_array( $attrs['subscriptionPlan'] ) ) { |
| 733 |
if ( isset( $attrs['subscriptionPlan']['interval'] ) && is_string( $attrs['subscriptionPlan']['interval'] ) ) { |
| 734 |
$payment_config['subscription_interval'] = sanitize_text_field( $attrs['subscriptionPlan']['interval'] ); |
| 735 |
} |
| 736 |
if ( isset( $attrs['subscriptionPlan']['billingCycles'] ) ) { |
| 737 |
// billingCycles is either an integer count or the string 'ongoing'. |
| 738 |
$cycles_raw = $attrs['subscriptionPlan']['billingCycles']; |
| 739 |
$payment_config['subscription_billing_cycles'] = is_numeric( $cycles_raw ) ? intval( $cycles_raw ) : sanitize_text_field( (string) $cycles_raw ); |
| 740 |
} |
| 741 |
} |
| 742 |
|
| 743 |
// Extract amount type (fixed or minimum). |
| 744 |
$payment_config['amount_type'] = isset( $attrs['amountType'] ) && is_string( $attrs['amountType'] ) ? sanitize_text_field( $attrs['amountType'] ) : 'fixed'; |
| 745 |
|
| 746 |
$payment_config['fixed_amount'] = isset( $attrs['fixedAmount'] ) ? floatval( $attrs['fixedAmount'] ) : 10; |
| 747 |
|
| 748 |
$payment_config['minimum_amount'] = isset( $attrs['minimumAmount'] ) ? floatval( $attrs['minimumAmount'] ) : 0; |
| 749 |
|
| 750 |
// Extract variable amount field reference. |
| 751 |
if ( isset( $attrs['variableAmountField'] ) ) { |
| 752 |
$variable_amount_slug = sanitize_text_field( $attrs['variableAmountField'] ); |
| 753 |
$payment_config['variable_amount_field'] = $variable_amount_slug; |
| 754 |
|
| 755 |
// Find and add the block name from which the variable amount field comes from. |
| 756 |
if ( ! empty( $variable_amount_slug ) && is_array( $blocks ) ) { |
| 757 |
foreach ( $blocks as $block ) { |
| 758 |
if ( isset( $block['attrs']['slug'] ) && $block['attrs']['slug'] === $variable_amount_slug ) { |
| 759 |
$payment_config['variable_amount_field_block_name'] = $block['blockName']; |
| 760 |
break; |
| 761 |
} |
| 762 |
} |
| 763 |
} |
| 764 |
} |
| 765 |
|
| 766 |
// BOTH MODE: store per-type amount configs so server-side validation can |
| 767 |
// use the correct config based on which flow the user actually chose. |
| 768 |
if ( 'both' === $payment_config['payment_type'] ) { |
| 769 |
$payment_config['one_time_amount_type'] = isset( $attrs['oneTimeAmountType'] ) && is_string( $attrs['oneTimeAmountType'] ) ? sanitize_text_field( $attrs['oneTimeAmountType'] ) : 'fixed'; |
| 770 |
$payment_config['one_time_fixed_amount'] = isset( $attrs['oneTimeFixedAmount'] ) ? floatval( $attrs['oneTimeFixedAmount'] ) : 10; |
| 771 |
$payment_config['one_time_minimum_amount'] = isset( $attrs['oneTimeMinimumAmount'] ) ? floatval( $attrs['oneTimeMinimumAmount'] ) : 0; |
| 772 |
|
| 773 |
if ( isset( $attrs['oneTimeVariableAmountField'] ) ) { |
| 774 |
$ot_slug = sanitize_text_field( $attrs['oneTimeVariableAmountField'] ); |
| 775 |
$payment_config['one_time_variable_amount_field'] = $ot_slug; |
| 776 |
if ( ! empty( $ot_slug ) && is_array( $blocks ) ) { |
| 777 |
foreach ( $blocks as $block ) { |
| 778 |
if ( isset( $block['attrs']['slug'] ) && $block['attrs']['slug'] === $ot_slug ) { |
| 779 |
$payment_config['one_time_variable_amount_field_block_name'] = $block['blockName']; |
| 780 |
break; |
| 781 |
} |
| 782 |
} |
| 783 |
} |
| 784 |
} |
| 785 |
|
| 786 |
$payment_config['subscription_amount_type'] = isset( $attrs['subscriptionAmountType'] ) && is_string( $attrs['subscriptionAmountType'] ) ? sanitize_text_field( $attrs['subscriptionAmountType'] ) : 'fixed'; |
| 787 |
$payment_config['subscription_fixed_amount'] = isset( $attrs['subscriptionFixedAmount'] ) ? floatval( $attrs['subscriptionFixedAmount'] ) : 10; |
| 788 |
$payment_config['subscription_minimum_amount'] = isset( $attrs['subscriptionMinimumAmount'] ) ? floatval( $attrs['subscriptionMinimumAmount'] ) : 0; |
| 789 |
|
| 790 |
if ( isset( $attrs['subscriptionVariableAmountField'] ) ) { |
| 791 |
$sub_slug = sanitize_text_field( $attrs['subscriptionVariableAmountField'] ); |
| 792 |
$payment_config['subscription_variable_amount_field'] = $sub_slug; |
| 793 |
if ( ! empty( $sub_slug ) && is_array( $blocks ) ) { |
| 794 |
foreach ( $blocks as $block ) { |
| 795 |
if ( isset( $block['attrs']['slug'] ) && $block['attrs']['slug'] === $sub_slug ) { |
| 796 |
$payment_config['subscription_variable_amount_field_block_name'] = $block['blockName']; |
| 797 |
break; |
| 798 |
} |
| 799 |
} |
| 800 |
} |
| 801 |
} |
| 802 |
} |
| 803 |
|
| 804 |
return $payment_config; |
| 805 |
} |
| 806 |
|
| 807 |
/** |
| 808 |
* Process dropdown block configuration. |
| 809 |
* |
| 810 |
* @param array<mixed> $attrs Block attributes. |
| 811 |
* @return array Processed dropdown configuration. |
| 812 |
* @since 2.3.0 |
| 813 |
*/ |
| 814 |
private static function process_dropdown_block( $attrs ) { |
| 815 |
$dropdown_config = []; |
| 816 |
|
| 817 |
// Extract required field. |
| 818 |
$dropdown_config['required'] = isset( $attrs['required'] ) && ! empty( $attrs['required'] ) ? true : false; |
| 819 |
|
| 820 |
// Extract options with their full structure (label, icon, value). |
| 821 |
if ( isset( $attrs['options'] ) && is_array( $attrs['options'] ) ) { |
| 822 |
$sanitized_options = []; |
| 823 |
foreach ( $attrs['options'] as $option ) { |
| 824 |
if ( is_array( $option ) ) { |
| 825 |
$sanitized_options[] = [ |
| 826 |
'label' => isset( $option['label'] ) ? sanitize_text_field( $option['label'] ) : '', |
| 827 |
'icon' => isset( $option['icon'] ) ? sanitize_text_field( $option['icon'] ) : '', |
| 828 |
'value' => isset( $option['value'] ) ? sanitize_text_field( $option['value'] ) : '', |
| 829 |
]; |
| 830 |
} |
| 831 |
} |
| 832 |
$dropdown_config['options'] = $sanitized_options; |
| 833 |
} |
| 834 |
|
| 835 |
// Extract showValues flag. |
| 836 |
$dropdown_config['show_values'] = isset( $attrs['showValues'] ) ? rest_sanitize_boolean( $attrs['showValues'] ) : false; |
| 837 |
|
| 838 |
// Extract multiSelect flag. |
| 839 |
if ( isset( $attrs['multiSelect'] ) ) { |
| 840 |
$dropdown_config['multi_select'] = rest_sanitize_boolean( $attrs['multiSelect'] ); |
| 841 |
} |
| 842 |
|
| 843 |
// Extract minValue for multi-select validation. |
| 844 |
if ( isset( $attrs['minValue'] ) ) { |
| 845 |
$dropdown_config['min_value'] = absint( $attrs['minValue'] ); |
| 846 |
} |
| 847 |
|
| 848 |
// Extract maxValue for multi-select validation. |
| 849 |
if ( isset( $attrs['maxValue'] ) ) { |
| 850 |
$dropdown_config['max_value'] = absint( $attrs['maxValue'] ); |
| 851 |
} |
| 852 |
|
| 853 |
return $dropdown_config; |
| 854 |
} |
| 855 |
|
| 856 |
/** |
| 857 |
* Process multi-choice block configuration. |
| 858 |
* |
| 859 |
* @param array<mixed> $attrs Block attributes. |
| 860 |
* @return array Processed multi-choice configuration. |
| 861 |
* @since 2.3.0 |
| 862 |
*/ |
| 863 |
private static function process_multichoice_block( $attrs ) { |
| 864 |
$multichoice_config = []; |
| 865 |
|
| 866 |
// Extract required field. |
| 867 |
$multichoice_config['required'] = isset( $attrs['required'] ) && ! empty( $attrs['required'] ) ? true : false; |
| 868 |
|
| 869 |
// Extract singleSelection flag. |
| 870 |
if ( isset( $attrs['singleSelection'] ) ) { |
| 871 |
$multichoice_config['single_selection'] = rest_sanitize_boolean( $attrs['singleSelection'] ); |
| 872 |
} |
| 873 |
|
| 874 |
// Extract minValue for validation. |
| 875 |
if ( isset( $attrs['minValue'] ) ) { |
| 876 |
$multichoice_config['min_value'] = absint( $attrs['minValue'] ); |
| 877 |
} |
| 878 |
|
| 879 |
// Extract maxValue for validation. |
| 880 |
if ( isset( $attrs['maxValue'] ) ) { |
| 881 |
$multichoice_config['max_value'] = absint( $attrs['maxValue'] ); |
| 882 |
} |
| 883 |
|
| 884 |
// Extract options with their full structure (label, icon, value). |
| 885 |
if ( isset( $attrs['options'] ) && is_array( $attrs['options'] ) ) { |
| 886 |
$sanitized_options = []; |
| 887 |
foreach ( $attrs['options'] as $option ) { |
| 888 |
if ( is_array( $option ) ) { |
| 889 |
$sanitized_options[] = [ |
| 890 |
'label' => isset( $option['optionTitle'] ) ? trim( sanitize_text_field( $option['optionTitle'] ) ) : '', |
| 891 |
'icon' => isset( $option['icon'] ) ? sanitize_text_field( $option['icon'] ) : '', |
| 892 |
'value' => isset( $option['value'] ) ? sanitize_text_field( $option['value'] ) : '', |
| 893 |
]; |
| 894 |
} |
| 895 |
} |
| 896 |
$multichoice_config['options'] = $sanitized_options; |
| 897 |
} |
| 898 |
|
| 899 |
// Extract showValues flag. |
| 900 |
if ( isset( $attrs['showValues'] ) ) { |
| 901 |
$multichoice_config['show_values'] = rest_sanitize_boolean( $attrs['showValues'] ); |
| 902 |
} |
| 903 |
|
| 904 |
return $multichoice_config; |
| 905 |
} |
| 906 |
|
| 907 |
/** |
| 908 |
* Process textarea block configuration. |
| 909 |
* |
| 910 |
* @param array<mixed> $attrs Block attributes. |
| 911 |
* @return array Processed textarea configuration. |
| 912 |
* @since 2.8.2 |
| 913 |
*/ |
| 914 |
private static function process_textarea_block( $attrs ) { |
| 915 |
// Always emit a min_length key so a cleared/invalid value overwrites any |
| 916 |
// previously stored config on save instead of falling back to stale data. |
| 917 |
// Rich-text editors submit HTML markup which would skew mb_strlen counts, |
| 918 |
// so they're treated as "no min-length validation". |
| 919 |
if ( ! empty( $attrs['isRichText'] ) ) { |
| 920 |
return [ 'min_length' => 0 ]; |
| 921 |
} |
| 922 |
|
| 923 |
$min_length = isset( $attrs['minLength'] ) && is_numeric( $attrs['minLength'] ) ? absint( $attrs['minLength'] ) : 0; |
| 924 |
$max_length = isset( $attrs['maxLength'] ) && is_numeric( $attrs['maxLength'] ) ? absint( $attrs['maxLength'] ) : 0; |
| 925 |
|
| 926 |
// Misconfiguration guard — drop min when it exceeds max so the form stays submittable. |
| 927 |
if ( $max_length > 0 && $min_length > $max_length ) { |
| 928 |
$min_length = 0; |
| 929 |
} |
| 930 |
|
| 931 |
return [ 'min_length' => $min_length ]; |
| 932 |
} |
| 933 |
|
| 934 |
/** |
| 935 |
* Process number block configuration. |
| 936 |
* |
| 937 |
* @param array<mixed> $attrs Block attributes. |
| 938 |
* @return array Processed number configuration. |
| 939 |
* @since 2.4.0 |
| 940 |
*/ |
| 941 |
private static function process_number_block( $attrs ) { |
| 942 |
$number_config = []; |
| 943 |
|
| 944 |
// Extract required field. |
| 945 |
if ( isset( $attrs['required'] ) ) { |
| 946 |
$number_config['required'] = ! empty( $attrs['required'] ) ? true : false; |
| 947 |
} |
| 948 |
|
| 949 |
// Extract format type (us-style or eu-style). |
| 950 |
$number_config['format_type'] = isset( $attrs['formatType'] ) && is_string( $attrs['formatType'] ) ? sanitize_text_field( $attrs['formatType'] ) : 'us-style'; |
| 951 |
|
| 952 |
// Extract min value. |
| 953 |
if ( isset( $attrs['min'] ) ) { |
| 954 |
$number_config['min'] = floatval( $attrs['min'] ); |
| 955 |
} |
| 956 |
|
| 957 |
// Extract max value. |
| 958 |
if ( isset( $attrs['max'] ) ) { |
| 959 |
$number_config['max'] = floatval( $attrs['max'] ); |
| 960 |
} |
| 961 |
|
| 962 |
// Capture calculation config (Pro feature) so a calculation-driven number field used as a |
| 963 |
// payment amount source can be re-derived server-side instead of trusting the submitted |
| 964 |
// value. Harmless when the calculation feature is not in use. |
| 965 |
if ( ! empty( $attrs['enableCalculation'] ) ) { |
| 966 |
$number_config['enableCalculation'] = true; |
| 967 |
$number_config['calculationFormula'] = isset( $attrs['calculationFormula'] ) && is_string( $attrs['calculationFormula'] ) ? $attrs['calculationFormula'] : ''; |
| 968 |
// Stored as null when unset so the validator rounds only when a precision is configured. |
| 969 |
$number_config['calculationRound'] = isset( $attrs['calculationRound'] ) && is_numeric( $attrs['calculationRound'] ) ? absint( $attrs['calculationRound'] ) : null; |
| 970 |
} |
| 971 |
|
| 972 |
return $number_config; |
| 973 |
} |
| 974 |
} |
| 975 |
|
