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<?php |
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/** |
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* @version 1.0 |
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* @package Booking Calendar |
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* @subpackage Security: Escaping & Sanitizing Functions |
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* @category Functions |
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* |
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* @author wpdevelop |
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* @link https://wpbookingcalendar.com/ |
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* @email info@wpbookingcalendar.com |
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* |
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* @modified 2024-09-03 |
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*/ |
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|
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if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly |
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|
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|
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// ===================================================================================================================== |
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// == Security: Escaping & Sanitizing == |
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// ===================================================================================================================== |
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|
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/** |
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* Check specific parameters in ARRAY and return cleaned params or default values |
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* |
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* @param array $request_params_values_arr = / think like in $_REQUEST parameter / |
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* array( |
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* 'page_num' => 1, |
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* 'page_items_count' => 10, |
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* 'sort' => 'rule_id', |
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* 'sort_type' => 'DESC', |
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* 'status' => '', |
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* 'keyword' => '', |
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* 'create_date' => '' |
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* ) |
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* @param array $params_rules = array( |
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* 'page_num' => array( 'validate' => 'd', 'default' => 1 ) |
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* , 'page_items_count' => array( 'validate' => 'd', 'default' => 10 ) |
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* , 'sort' => array( 'validate' => array( 'rule_id' ), 'default' => 'rule_id' ) |
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* , 'sort_type' => array( 'validate' => array( 'ASC', 'DESC'),'default' => 'DESC' ) |
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* , 'status' => array( 'validate' => 's', 'default' => '' ) |
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* , 'keyword' => array( 'validate' => 's', 'default' => '' ) |
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* , 'create_date' => array( 'validate' => 'date', 'default' => '' ) |
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* ) |
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* |
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* |
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* 'd'; // '1' | '' |
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* 's'; // string !!! Clean 'LIKE' string for DB !!! |
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* 'digit_or_csd'; // '0' | '1,2,3' | '' |
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* 'digit_or_date'; // number | date 2016-07-20 |
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* |
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* 'checked_skip_it' // Skip checking |
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* array( '0', 'trash', 'any'); // Elements only listed in array |
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* |
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*@return array $clean_params = Array ( |
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* [page_num] => 3 |
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* [page_items_count] => 20 |
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* [sort] => booking_id |
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* [sort_type] => DESC |
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* [keyword] => |
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* [source] => |
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* [create_date] => |
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* ) |
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* |
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* |
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Example of Direct Clean Params: |
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|
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$request_params_ajx_booking = array( |
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'page_num' => array( 'validate' => 'd', 'default' => 1 ) |
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, 'page_items_count' => array( 'validate' => 'd', 'default' => 10 ) |
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, 'sort' => array( 'validate' => array( 'ajx_booking_id' ), 'default' => 'ajx_booking_id' ) |
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, 'sort_type' => array( 'validate' => array( 'ASC', 'DESC'),'default' => 'DESC' ) |
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, 'status' => array( 'validate' => 's', 'default' => '' ) |
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, 'keyword' => array( 'validate' => 's', 'default' => '' ) |
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, 'ru_create_date' => array( 'validate' => 'date', 'default' => '' ) |
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); |
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$request_params_values = array( // Usually $request_params_values is $_REQUEST |
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'page_num' => 1, |
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'page_items_count' => 3, |
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'sort' => 'ajx_booking_id', |
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'sort_type' => 'DESC', |
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'status' => '', |
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'keyword' => '', |
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'ru_create_date' => '' |
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); |
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$request_params = wpbc_sanitize_params_in_arr( $request_params_values, $request_params_ajx_booking ); |
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*/ |
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function wpbc_sanitize_params_in_arr( $request_params_values_arr, $params_rules ){ |
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|
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$clean_params = array(); |
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|
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foreach ( $params_rules as $request_key_name => $clean_type ) { |
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|
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if ( isset( $request_params_values_arr[ $request_key_name ] ) ) { |
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$request_value_check = $request_params_values_arr[ $request_key_name ]; |
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} else { |
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$request_value_check = false; |
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} |
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|
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// If not defined in VALUES (think like in $_REQUEST parameter), then get default value |
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if ( false === $request_value_check ) { |
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|
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// D E F A U L T |
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$clean_params[ $request_key_name ] = $params_rules[ $request_key_name ]['default']; |
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|
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} else { |
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|
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// C L E A N I N G |
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$clean_type = $params_rules[ $request_key_name ]['validate']; |
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|
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// Check only values from this Array |
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if ( is_array( $clean_type ) ) { |
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|
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$clean_type = array_map( 'strtolower', $clean_type ); |
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|
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if ( ( isset( $request_value_check ) ) && ( ! in_array( strtolower( $request_value_check ), $clean_type ) ) ) { |
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$clean_type = 'checked_skip_it'; |
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$request_value_check = $params_rules[ $request_key_name ]['default']; // Reset it, if value not in array And get default value |
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} else { |
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$clean_type = 'checked_skip_it'; |
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} |
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} |
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|
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switch ( $clean_type ) { |
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|
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case 'checked_skip_it': |
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$clean_params[ $request_key_name ] = $request_value_check; |
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break; |
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|
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case 'date': // Date |
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$clean_params[ $request_key_name ] = wpbc_sanitize_date( $request_value_check ); |
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break; |
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|
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case 'csv_dates': // CSV Dates: '11.11.2025, 12.11.2025, 13.11.2025' or '2024-02-06, 2024-02-10' |
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$clean_params[ $request_key_name ] = wpbc_sanitize_csv_dates( $request_value_check ); // FixIn: 9.9.1.1. |
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break; |
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|
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case 'digit_or_date': // digit or Date |
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$clean_params[ $request_key_name ] = wpbc_sanitize_digit_or_date( $request_value_check ); |
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break; |
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|
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case 'digit_or_csd': // digit or comma separated digit |
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$clean_params[ $request_key_name ] = wpbc_sanitize_digit_or_csd( $request_value_check ); |
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break; |
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|
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case 's': // string |
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$clean_params[ $request_key_name ] = wpbc_sanitize_text( $request_value_check ); |
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break; |
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|
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case 'strong': // string |
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$clean_params[ $request_key_name ] = wpbc_sanitize_text_strong( $request_value_check ); |
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break; |
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|
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case 'array': |
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if ( is_array( $request_value_check ) ) { |
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foreach ( $request_value_check as $check_arr_index => $check_arr_value ) { |
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$request_value_check[ $check_arr_index ] = wpbc_sanitize_text( $check_arr_value ); // Check each option as string |
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} |
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$clean_params[ $request_key_name ] = $request_value_check; |
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|
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} else { |
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$clean_params[ $request_key_name ] = $params_rules[ $request_key_name ]['default']; |
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} |
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break; |
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|
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case 'digit_or_empty': // digit or '' |
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if ( '' === $request_value_check) { |
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$clean_params[ $request_key_name ] = ''; |
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} else { |
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$clean_params[ $request_key_name ] = intval( $request_value_check ); |
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} |
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break; |
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|
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case 'float_or_empty': // digit or '' |
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if ( '' === $request_value_check) { |
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$clean_params[ $request_key_name ] = ''; |
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} else { |
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|
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// In case if was entered 10,99 instead of 10.99 |
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$request_value_check = str_replace( ',', '.', $request_value_check ); |
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|
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$clean_params[ $request_key_name ] = floatval( $request_value_check ); |
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} |
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break; |
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|
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case 'f': // float |
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$clean_params[ $request_key_name ] = floatval( $request_value_check ); |
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break; |
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|
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case 'd': // digit |
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$clean_params[ $request_key_name ] = intval( $request_value_check ); |
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break; |
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|
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default: |
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$clean_params[ $request_key_name ] = intval( $request_value_check ); |
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break; |
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} |
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} |
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} |
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return $clean_params; |
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} |
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|
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/** |
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* Check parameter if it number or comma separated list of numbers |
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* |
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* @param string | array $value |
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* |
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* @return string | array |
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* |
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* Example: |
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* wpbc_sanitize_digit_or_csd( '12,a,45,9' ) => '12,0,45,9' |
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* or |
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* wpbc_sanitize_digit_or_csd( '10a' ) => '10 |
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* or |
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* wpbc_sanitize_digit_or_csd( array( '12,a,45,9', '10a' ) ) => array ( '12,0,45,9', '10' ) |
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*/ |
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function wpbc_sanitize_digit_or_csd( $value ) { // FixIn: 6.2.1.4. |
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|
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if ( $value === '' ) { |
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return $value; |
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} |
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|
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if ( is_array( $value ) ) { |
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foreach ( $value as $key => $check_value ) { |
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$value[ $key ] = wpbc_sanitize_digit_or_csd( $check_value ); |
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} |
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|
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return $value; |
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} |
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|
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$value = str_replace( ';', ',', $value ); |
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$array_of_nums = explode( ',', $value ); |
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|
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|
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$result = array(); |
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foreach ( $array_of_nums as $check_element ) { |
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$result[] = intval( $check_element ); |
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} |
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$result = implode( ',', $result ); |
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|
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return $result; |
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} |
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|
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/** |
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* Check about Valid date or number, like 2016-07-20 and return this date or number |
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* |
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* @param string $value |
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* |
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* @return string | int '2022-05-31' or 5 or '' |
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*/ |
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function wpbc_sanitize_digit_or_date( $value ) { // FixIn: 6.2.1.4. |
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|
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if ( $value === '' ) return $value; |
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|
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if ( preg_match("/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/", $value ) ) { |
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|
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return $value; // Date is valid in format: 2016-07-20 |
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} else { |
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return intval( $value ); |
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} |
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|
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} |
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|
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/** |
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* Check about Valid date, like 2016-07-20 and return this date or '' |
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* |
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* @param string $value |
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* |
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* @return string '2022-05-31' or '' |
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*/ |
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function wpbc_sanitize_date( $value ) { // FixIn: 6.2.1.4. |
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|
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if ( $value === '' ) return $value; |
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|
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if ( preg_match("/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/", $value ) ) { |
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|
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return $value; // Date is valid in format: 2016-07-20 |
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} else { |
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return ''; |
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} |
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|
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} |
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|
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/** |
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* Check about Valid date, like '31.05.2022 and return this date or '' |
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* |
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* @param string $value |
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* |
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* @return string '31.05.2022' or '' |
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*/ |
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function wpbc_sanitize_date_dmy( $value ) { // FixIn: 9.9.1.1. |
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|
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if ( $value === '' ) return $value; |
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|
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if ( preg_match("/^(0[1-9]|[1-2][0-9]|3[0-1]).(0[1-9]|1[0-2]).[0-9]{4}$/", $value ) ) { |
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|
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return $value; // Date is valid in format: 31.05.2022 |
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} else { |
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return ''; |
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} |
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|
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} |
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|
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/** |
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* Check about Valid date(s), like CSV Dates: such as: '11.11.2025, 12.11.2025, 13.11.2025' or '2024-02-06, 2024-02-10' and then return them sanitized dates or '' |
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* |
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* @param string $value |
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* |
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* @return string '2022-05-31' or '' |
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*/ |
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function wpbc_sanitize_csv_dates( $value ) { // FixIn: 9.9.1.1. |
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|
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if ( '' === $value ) { return $value; } |
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|
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$value = str_replace( ';', ',', $value ); |
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$array_of_nums = explode( ',', $value ); |
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|
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$result = array(); |
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|
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foreach ( $array_of_nums as $single_date ) { |
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|
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$single_date = trim( $single_date ); |
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|
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// Check for date '2024-02-06 |
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$date_ymd = wpbc_sanitize_date( $single_date ); |
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|
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if ( '' !== $date_ymd ) { |
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$result[] = $date_ymd; |
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} else { |
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|
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// Otherwise check for date: '06.02.2024' |
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$date_dmy = wpbc_sanitize_date_dmy( $single_date ); |
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if ( '' !== $date_dmy ) { |
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$result[] = $date_dmy; |
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} |
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} |
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} |
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|
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$result = implode( ',', $result ); |
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|
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return $result; |
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} |
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|
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/** |
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* Escape string from SQL for the HTML form field |
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* |
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* @param string $value |
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* |
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* @return string |
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* |
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* Used: esc_sql function. |
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* |
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* https://codex.wordpress.org/Function_Reference/esc_sql |
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* Note: Be careful to use this function correctly. It will only escape values to be used in strings in the query. |
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* That is, it only provides escaping for values that will be within quotes in the SQL (as in field = '{$escaped_value}'). |
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* If your value is not going to be within quotes, your code will still be vulnerable to SQL injection. |
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* For example, this is vulnerable, because the escaped value is not surrounded by quotes in the SQL query: |
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* ORDER BY {$escaped_value}. As such, this function does not escape unquoted numeric values, field names, or SQL keywords. |
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* |
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*/ |
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function wpbc_sanitize_text( $value ){ |
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|
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$value_trimmed = trim( stripslashes( $value ) ); // \' becomes ' and so on |
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|
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$esc_sql_value = sanitize_textarea_field( $value_trimmed ); // preserves new lines (\n) and other whitespace |
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//$esc_sql_value = sanitize_text_field( $value_trimmed ); // remove new lines (\n) and other whitespace |
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|
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//global $wpdb; |
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//$value = trim( $wpdb->prepare( "'%s'", $esc_sql_value ) , "'" ); |
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//$esc_sql_value = trim( stripslashes( $esc_sql_value ) ); |
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|
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return $esc_sql_value; |
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} |
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|
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/** |
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* Escape string from SQL for the HTML form field |
| 376 |
* |
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* @param string $value |
| 378 |
* |
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* @return string |
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* |
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* Used: esc_sql function. |
| 382 |
* |
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* https://codex.wordpress.org/Function_Reference/esc_sql |
| 384 |
* Note: Be careful to use this function correctly. It will only escape values to be used in strings in the query. |
| 385 |
* That is, it only provides escaping for values that will be within quotes in the SQL (as in field = '{$escaped_value}'). |
| 386 |
* If your value is not going to be within quotes, your code will still be vulnerable to SQL injection. |
| 387 |
* For example, this is vulnerable, because the escaped value is not surrounded by quotes in the SQL query: |
| 388 |
* ORDER BY {$escaped_value}. As such, this function does not escape unquoted numeric values, field names, or SQL keywords. |
| 389 |
* |
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*/ |
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function wpbc_sanitize_text_strong( $value ){ |
| 392 |
|
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$value_trimmed = trim( stripslashes( $value ) ); // \' becomes ' and so on |
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|
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//$esc_sql_value = sanitize_text_field( $value_trimmed ); // remove new lines (\n) and other whitespace |
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$esc_sql_value = sanitize_textarea_field( $value_trimmed ); // preserves new lines (\n) and other whitespace |
| 397 |
|
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// clean any tags |
| 399 |
$esc_sql_value = preg_replace( '/<[^>]*>/', '', $esc_sql_value ); |
| 400 |
$esc_sql_value = str_replace( '<', ' ', $esc_sql_value ); |
| 401 |
$esc_sql_value = str_replace( '>', ' ', $esc_sql_value ); |
| 402 |
$esc_sql_value = wp_strip_all_tags( $esc_sql_value ); |
| 403 |
|
| 404 |
//FixIn: 9.7.4.1 - escape coded html/xss // Escape any XSS injection |
| 405 |
// If we have field converted to 'Unicode Hex Character Code', then we make HTML decode firstly (html_entity_decode) and then make sanitizing |
| 406 |
$esc_sql_value = sanitize_textarea_field( html_entity_decode( $esc_sql_value ) ); |
| 407 |
|
| 408 |
// $esc_sql_value = str_replace('%', '%', $esc_sql_value ); // clean any % from the form, because otherwise, there is problems with SQL prepare function |
| 409 |
// $esc_sql_value = str_replace('_', '_', $esc_sql_value ); // clean any _ |
| 410 |
|
| 411 |
// $esc_sql_value = str_replace('^', '^', $esc_sql_value ); // clean any ^ caret symbols |
| 412 |
// $esc_sql_value = str_replace('~', '~', $esc_sql_value ); // clean any ~ equivalency sign - tilde |
| 413 |
|
| 414 |
return $esc_sql_value; |
| 415 |
} |
| 416 |
|
| 417 |
|
| 418 |
// --------------------------------------------------------------------------------------------------------------------- |
| 419 |
// Other Sanitize functions |
| 420 |
// --------------------------------------------------------------------------------------------------------------------- |
| 421 |
|
| 422 |
/** |
| 423 |
* Sanitize $_GET, $_POST, $_REQUEST text parameters // FixIn: 10.0.0.12. |
| 424 |
* |
| 425 |
* @param $value |
| 426 |
* @param $keep_newlines bool |
| 427 |
* |
| 428 |
* @return string |
| 429 |
*/ |
| 430 |
function wpbc_clean_text_value( $value , $keep_newlines = false ){ |
| 431 |
|
| 432 |
if ( $keep_newlines ) { |
| 433 |
$value_cleaned = sanitize_textarea_field( $value ); |
| 434 |
} else { |
| 435 |
$value_cleaned = sanitize_text_field( $value ); |
| 436 |
} |
| 437 |
|
| 438 |
return $value_cleaned; |
| 439 |
} |
| 440 |
|
| 441 |
|
| 442 |
// check $value for injection here |
| 443 |
function wpbc_clean_parameter( $value, $is_escape_sql = true ) { |
| 444 |
|
| 445 |
$value = preg_replace( '/<[^>]*>/', '', $value ); // clean any tags |
| 446 |
$value = str_replace( '<', ' ', $value ); |
| 447 |
$value = str_replace( '>', ' ', $value ); |
| 448 |
$value = wp_strip_all_tags( $value ); |
| 449 |
|
| 450 |
//FixIn: 9.7.4.1 - escape coded html/xss // Escape any XSS injection |
| 451 |
$value = sanitize_textarea_field( $value ); |
| 452 |
$value = sanitize_textarea_field( html_entity_decode( $value ) ); // If we have field converted to 'Unicode Hex Character Code', then we make HTML decode firstly (html_entity_decode) and then make sanitizing |
| 453 |
|
| 454 |
if ( $is_escape_sql ) { |
| 455 |
$value = esc_sql( $value ); // Clean SQL injection // FixIn: 9.7.4.2. |
| 456 |
} |
| 457 |
|
| 458 |
$value = esc_textarea( $value ); // FixIn: 7.1.1.2. |
| 459 |
|
| 460 |
return $value; |
| 461 |
} |
| 462 |
|
| 463 |
|
| 464 |
/** |
| 465 |
* Check parameter if it number or comma separated list of numbers |
| 466 |
* |
| 467 |
* @param $value |
| 468 |
* @return array|string |
| 469 |
* |
| 470 |
* Example: |
| 471 |
* wpbc_clean_digit_or_csd( '12,a,45,9' ) => '12,0,45,9' |
| 472 |
* or |
| 473 |
* wpbc_clean_digit_or_csd( '10a' ) => '10 |
| 474 |
* or |
| 475 |
* wpbc_clean_digit_or_csd( array( '12,a,45,9', '10a' ) ) => array ( '12,0,45,9', '10' ) |
| 476 |
*/ |
| 477 |
function wpbc_clean_digit_or_csd( $value ) { // FixIn: 6.2.1.4. |
| 478 |
|
| 479 |
if ( $value === '' ) return $value; |
| 480 |
|
| 481 |
|
| 482 |
if ( is_array( $value ) ) { |
| 483 |
foreach ( $value as $key => $check_value ) { |
| 484 |
$value[ $key ] = wpbc_clean_digit_or_csd( $check_value ); |
| 485 |
} |
| 486 |
return $value; |
| 487 |
} |
| 488 |
|
| 489 |
$value = str_replace( ';', ',', $value ); |
| 490 |
|
| 491 |
$array_of_nums = explode(',', $value); |
| 492 |
|
| 493 |
$result = array(); |
| 494 |
foreach ($array_of_nums as $check_element) { |
| 495 |
|
| 496 |
$result[] = intval( $check_element ); // FixIn: 8.0.2.10. |
| 497 |
} |
| 498 |
$result = implode(',', $result ); |
| 499 |
return $result; |
| 500 |
} |
| 501 |
|
| 502 |
|
| 503 |
/** |
| 504 |
* Cehck about Valid date, like 2016-07-20 or digit |
| 505 |
* |
| 506 |
* @param string $value |
| 507 |
* @return string or int |
| 508 |
*/ |
| 509 |
function wpbc_clean_digit_or_date( $value ) { // FixIn: 6.2.1.4. |
| 510 |
|
| 511 |
if ( $value === '' ) return $value; |
| 512 |
|
| 513 |
if ( preg_match("/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/", $value ) ) { |
| 514 |
|
| 515 |
return $value; // Date is valid in format: 2016-07-20 |
| 516 |
} else { |
| 517 |
return intval( $value ); |
| 518 |
} |
| 519 |
|
| 520 |
} |
| 521 |
|
| 522 |
|
| 523 |
/** |
| 524 |
* Check about Valid dat in format '2024-05-08' otherwise return '' |
| 525 |
* |
| 526 |
* @param string $value |
| 527 |
* |
| 528 |
* @return string date or '' if date was not valie |
| 529 |
*/ |
| 530 |
function wpbc_clean_date( $value ) { |
| 531 |
|
| 532 |
if ( |
| 533 |
( ! empty( $value ) ) |
| 534 |
&& ( preg_match( "/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/", $value ) ) |
| 535 |
){ |
| 536 |
return $value; // Date is valid in format: 2024-05-08 |
| 537 |
} |
| 538 |
|
| 539 |
return ''; // Date not Valid |
| 540 |
} |
| 541 |
|
| 542 |
|
| 543 |
/** |
| 544 |
* Escape any XSS injection from values in booking form |
| 545 |
* |
| 546 |
* @param array $structured_booking_data_arr [...] |
| 547 |
* |
| 548 |
* @return array [...] |
| 549 |
*/ |
| 550 |
function wpbc_escape_any_xss_in_arr( $structured_booking_data_arr ) { |
| 551 |
|
| 552 |
foreach ( $structured_booking_data_arr as $field_name => $field_value ) { |
| 553 |
|
| 554 |
if ( is_array( $field_value ) ) { |
| 555 |
|
| 556 |
$structured_booking_data_arr[ $field_name ] = wpbc_escape_any_xss_in_arr( $field_value ); |
| 557 |
|
| 558 |
} else { |
| 559 |
$is_escape_sql = false; // Do not replace % |
| 560 |
$field_value_cleaned = wpbc_escape_any_xss_in_string( $field_value, $is_escape_sql ); |
| 561 |
$structured_booking_data_arr[ $field_name ] = $field_value_cleaned; |
| 562 |
} |
| 563 |
} |
| 564 |
|
| 565 |
return $structured_booking_data_arr; |
| 566 |
} |
| 567 |
|
| 568 |
|
| 569 |
/** |
| 570 |
* Escape any XSS injection from string values |
| 571 |
* |
| 572 |
* @param string $field_value |
| 573 |
* |
| 574 |
* @return string |
| 575 |
*/ |
| 576 |
function wpbc_escape_any_xss_in_string( $field_value, $is_escape_sql = true ) { |
| 577 |
|
| 578 |
$field_value_cleaned = wpbc_clean_parameter( $field_value, $is_escape_sql ); |
| 579 |
$field_value_cleaned = str_replace( '%', '%', $field_value_cleaned ); // clean % in form, because can be problems with SQL prepare function |
| 580 |
|
| 581 |
return $field_value_cleaned; |
| 582 |
} |
| 583 |
|
| 584 |
|
| 585 |
function wpbc_esc_like( $value_trimmed ) { |
| 586 |
|
| 587 |
global $wpdb; |
| 588 |
if ( method_exists( $wpdb ,'esc_like' ) ) |
| 589 |
return $wpdb->esc_like( $value_trimmed ); // Its require minimum WP 4.0.0 |
| 590 |
else |
| 591 |
return addcslashes( $value_trimmed, '_%\\' ); // Direct implementation from $wpdb->esc_like( |
| 592 |
} |
| 593 |
|
| 594 |
/** |
| 595 |
* Escape single quote from ' to ' |
| 596 |
* |
| 597 |
* @param string $value - String to escape. |
| 598 |
* |
| 599 |
* @return array|string|string[] |
| 600 |
*/ |
| 601 |
function wpbc_esc_single_quote( $value ) { |
| 602 |
|
| 603 |
$safe_text = wp_check_invalid_utf8( $value ); |
| 604 |
$escaped_value = str_replace( "'", ''', $safe_text ); |
| 605 |
|
| 606 |
return $escaped_value; |
| 607 |
} |
| 608 |
|
| 609 |
/** |
| 610 |
* Sanitize term to Slug format (no spaces, lowercase). |
| 611 |
* urldecode - reverse munging of UTF8 characters. |
| 612 |
* |
| 613 |
* @param mixed $value |
| 614 |
* @return string |
| 615 |
*/ |
| 616 |
function wpbc_get_slug_format( $value ) { |
| 617 |
return urldecode( sanitize_title( $value ) ); |
| 618 |
} |
| 619 |
|
| 620 |
|
| 621 |
/** |
| 622 |
* Clean user string for using in SQL LIKE statement - append to LIKE sql |
| 623 |
* |
| 624 |
* @param string $value - to clean |
| 625 |
* @return string - escaped |
| 626 |
* Exmaple: |
| 627 |
* $search_escaped_like_title = wpbc_clean_like_string_for_append_in_sql_for_db( $input_var ); |
| 628 |
* |
| 629 |
* $where_sql = " WHERE title LIKE ". $search_escaped_like_title ." "; |
| 630 |
*/ |
| 631 |
function wpbc_clean_like_string_for_append_in_sql_for_db( $value ) { |
| 632 |
global $wpdb; |
| 633 |
|
| 634 |
$value_trimmed = trim( stripslashes( $value ) ); |
| 635 |
$wild = '%'; |
| 636 |
$like = $wild . wpbc_esc_like( $value_trimmed ) . $wild; |
| 637 |
/* phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.QuotedSimplePlaceholder */ |
| 638 |
$sql = $wpdb->prepare( "'%s'", $like ); |
| 639 |
|
| 640 |
return $sql; |
| 641 |
|
| 642 |
|
| 643 |
/* Help: |
| 644 |
* First half of escaping for LIKE special characters % and _ before preparing for MySQL. |
| 645 |
* Use this only before wpdb::prepare() or esc_sql(). Reversing the order is very bad for security. |
| 646 |
* |
| 647 |
* Example Prepared Statement: |
| 648 |
* |
| 649 |
* $wild = '%'; |
| 650 |
* $find = 'only 43% of planets'; |
| 651 |
* $like = $wild . wpbc_esc_like( $find ) . $wild; |
| 652 |
* $sql = $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE post_content LIKE '%s'", $like ); |
| 653 |
* |
| 654 |
* Example Escape Chain: |
| 655 |
* |
| 656 |
* $sql = esc_sql( wpbc_esc_like( $input ) ); |
| 657 |
*/ |
| 658 |
|
| 659 |
} |
| 660 |
|
| 661 |
|
| 662 |
/** |
| 663 |
* Clean string for using in SQL LIKE requests inside single quotes: WHERE title LIKE '%". $escaped_search_title ."%' |
| 664 |
* Replaced _ to \_ % to \% \ to \\ |
| 665 |
* @param string $value - to clean |
| 666 |
* @return string - escaped |
| 667 |
* Exmaple: |
| 668 |
* $search_escaped_like_title = wpbc_clean_like_string_for_db( $input_var ); |
| 669 |
* |
| 670 |
* $where_sql = " WHERE title LIKE '%". $search_escaped_like_title ."%' "; |
| 671 |
* |
| 672 |
* Important! Use SINGLE quotes after in SQL query: LIKE '%".$data."%' |
| 673 |
*/ |
| 674 |
function wpbc_clean_like_string_for_db( $value ){ |
| 675 |
|
| 676 |
global $wpdb; |
| 677 |
|
| 678 |
$value_trimmed = trim( stripslashes( $value ) ); |
| 679 |
|
| 680 |
$value_trimmed = wpbc_esc_like( $value_trimmed ); |
| 681 |
|
| 682 |
/* phpcs:ignore WordPress.DB.PreparedSQLPlaceholders.QuotedSimplePlaceholder */ |
| 683 |
$value = trim( $wpdb->prepare( "'%s'", $value_trimmed ), "'" ); |
| 684 |
|
| 685 |
return $value; |
| 686 |
|
| 687 |
/* Help: |
| 688 |
* First half of escaping for LIKE special characters % and _ before preparing for MySQL. |
| 689 |
* Use this only before wpdb::prepare() or esc_sql(). Reversing the order is very bad for security. |
| 690 |
* |
| 691 |
* Example Prepared Statement: |
| 692 |
* |
| 693 |
* $wild = '%'; |
| 694 |
* $find = 'only 43% of planets'; |
| 695 |
* $like = $wild . wpbc_esc_like( $find ) . $wild; |
| 696 |
* $sql = $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE post_content LIKE '%s'", $like ); |
| 697 |
* |
| 698 |
* Example Escape Chain: |
| 699 |
* |
| 700 |
* $sql = esc_sql( wpbc_esc_like( $input ) ); |
| 701 |
*/ |
| 702 |
} |
| 703 |
|
| 704 |
|
| 705 |
/** |
| 706 |
* Escape string from SQL for the HTML form field |
| 707 |
* |
| 708 |
* @param string $value |
| 709 |
* @return string |
| 710 |
* |
| 711 |
* Used: esc_sql function. |
| 712 |
* |
| 713 |
* https://codex.wordpress.org/Function_Reference/esc_sql |
| 714 |
* Note: Be careful to use this function correctly. It will only escape values to be used in strings in the query. |
| 715 |
* That is, it only provides escaping for values that will be within quotes in the SQL (as in field = '{$escaped_value}'). |
| 716 |
* If your value is not going to be within quotes, your code will still be vulnerable to SQL injection. |
| 717 |
* For example, this is vulnerable, because the escaped value is not surrounded by quotes in the SQL query: |
| 718 |
* ORDER BY {$escaped_value}. As such, this function does not escape unquoted numeric values, field names, or SQL keywords. |
| 719 |
* |
| 720 |
*/ |
| 721 |
function wpbc_clean_string_for_form( $value ){ |
| 722 |
|
| 723 |
global $wpdb; |
| 724 |
|
| 725 |
$value_trimmed = trim( stripslashes( $value ) ); |
| 726 |
|
| 727 |
//FixIn: 8.0.2.10 //Fix for update of WP 4.8.3 |
| 728 |
if ( method_exists( $wpdb, 'remove_placeholder_escape' ) ) |
| 729 |
$esc_sql_value = $wpdb->remove_placeholder_escape( esc_sql( $value_trimmed ) ); |
| 730 |
else |
| 731 |
$esc_sql_value = esc_sql( $value_trimmed ); |
| 732 |
|
| 733 |
//$value = trim( $wpdb->prepare( "'%s'", $esc_sql_value ) , "'" ); |
| 734 |
|
| 735 |
$esc_sql_value = trim( stripslashes( $esc_sql_value ) ); |
| 736 |
|
| 737 |
return $esc_sql_value; |
| 738 |
|
| 739 |
} |
| 740 |
|
| 741 |
|
| 742 |
/** |
| 743 |
* Escape shortcode parameters |
| 744 |
* |
| 745 |
* @param array $attr |
| 746 |
* |
| 747 |
* @return array |
| 748 |
*/ |
| 749 |
function wpbc_escape_shortcode_params( $attr ) { //FixIn: 9.7.3.6.1 |
| 750 |
|
| 751 |
if ( is_array( $attr ) ) { |
| 752 |
|
| 753 |
$scaped_attr = array(); |
| 754 |
|
| 755 |
foreach ( $attr as $attr_key => $attr_val ) { |
| 756 |
$attr_key = esc_attr( $attr_key ); |
| 757 |
$attr_val = esc_attr( $attr_val ); |
| 758 |
$scaped_attr[ $attr_key ] = $attr_val; |
| 759 |
} |
| 760 |
return $scaped_attr; |
| 761 |
} |
| 762 |
|
| 763 |
if ( is_string( $attr ) ) { //FixIn: 9.7.3.6.2 |
| 764 |
|
| 765 |
$scaped_attr = esc_attr( $attr ); |
| 766 |
|
| 767 |
return $scaped_attr; |
| 768 |
} |
| 769 |
|
| 770 |
return $attr; |
| 771 |
} |
| 772 |
|
