| 1 |
<?php |
| 2 |
/** |
| 3 |
* Booking Resource selector configuration normalization and signing. |
| 4 |
* |
| 5 |
* @package Booking Calendar |
| 6 |
*/ |
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|
| 8 |
if ( ! defined( 'ABSPATH' ) ) { |
| 9 |
exit; |
| 10 |
} |
| 11 |
|
| 12 |
/** |
| 13 |
* Convert a delimited value or array to unique positive Booking Resource IDs. |
| 14 |
* |
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* @param mixed $resource_ids Raw Booking Resource ID collection. |
| 16 |
* |
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* @return int[] Normalized Booking Resource IDs. |
| 18 |
*/ |
| 19 |
function wpbc_booking_resource_selector_normalize_ids( $resource_ids ) { |
| 20 |
if ( is_string( $resource_ids ) ) { |
| 21 |
$resource_ids = preg_split( '/[;,\s]+/', $resource_ids, -1, PREG_SPLIT_NO_EMPTY ); |
| 22 |
} |
| 23 |
|
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return array_values( array_unique( array_filter( array_map( 'absint', (array) $resource_ids ) ) ) ); |
| 25 |
} |
| 26 |
|
| 27 |
/** |
| 28 |
* Convert a shortcode-style value to a strict Boolean. |
| 29 |
* |
| 30 |
* @param mixed $raw_value Raw Boolean-like value. |
| 31 |
* @param bool $default_value Value used when the raw value is null. |
| 32 |
* |
| 33 |
* @return bool Normalized Boolean. |
| 34 |
*/ |
| 35 |
function wpbc_booking_resource_selector_normalize_boolean( $raw_value, $default_value = false ) { |
| 36 |
if ( null === $raw_value ) { |
| 37 |
return (bool) $default_value; |
| 38 |
} |
| 39 |
|
| 40 |
if ( is_string( $raw_value ) ) { |
| 41 |
$raw_value = strtolower( trim( $raw_value ) ); |
| 42 |
} |
| 43 |
|
| 44 |
return ! in_array( $raw_value, array( false, 0, '0', 'false', 'off', 'no', '' ), true ); |
| 45 |
} |
| 46 |
|
| 47 |
/** |
| 48 |
* Normalize a safe public catalog item width. |
| 49 |
* |
| 50 |
* Bare numbers are treated as pixels for shortcode convenience. Only simple |
| 51 |
* dimensions are accepted; CSS functions and arbitrary declarations are |
| 52 |
* rejected before the value can reach an inline custom property. |
| 53 |
* |
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* @param mixed $raw_width Raw shortcode width. |
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* |
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* @return string Normalized CSS width or an empty string for automatic width. |
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*/ |
| 58 |
function wpbc_booking_resource_selector_normalize_css_width( $raw_width ) { |
| 59 |
if ( is_int( $raw_width ) || is_float( $raw_width ) ) { |
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$raw_width = (string) $raw_width . 'px'; |
| 61 |
} |
| 62 |
|
| 63 |
$raw_width = strtolower( trim( (string) $raw_width ) ); |
| 64 |
if ( '' === $raw_width || 'auto' === $raw_width ) { |
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return ''; |
| 66 |
} |
| 67 |
if ( preg_match( '/^\d+(?:\.\d+)?$/', $raw_width ) ) { |
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$raw_width .= 'px'; |
| 69 |
} |
| 70 |
if ( ! preg_match( '/^(\d+(?:\.\d+)?)(px|%|rem|em|vw)$/', $raw_width, $matches ) ) { |
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return ''; |
| 72 |
} |
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|
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$numeric_width = (float) $matches[1]; |
| 75 |
$width_unit = $matches[2]; |
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$maximum_width = in_array( $width_unit, array( '%', 'vw' ), true ) ? 100 : ( 'px' === $width_unit ? 2000 : 100 ); |
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if ( $numeric_width <= 0 || $numeric_width > $maximum_width ) { |
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return ''; |
| 79 |
} |
| 80 |
|
| 81 |
$normalized_width = rtrim( rtrim( number_format( $numeric_width, 4, '.', '' ), '0' ), '.' ); |
| 82 |
|
| 83 |
return $normalized_width . $width_unit; |
| 84 |
} |
| 85 |
|
| 86 |
/** |
| 87 |
* Return the Booking Resource that should be checked on the selection screen. |
| 88 |
* |
| 89 |
* The public `resource_id` attribute is the primary default-selection |
| 90 |
* parameter. `selected_resource_id` remains as a compatibility fallback for |
| 91 |
* shortcodes created before `resource_id` adopted that behavior. |
| 92 |
* |
| 93 |
* @param array<string,mixed> $config Normalized selector configuration. |
| 94 |
* |
| 95 |
* @return int Default Booking Resource ID or zero. |
| 96 |
*/ |
| 97 |
function wpbc_booking_resource_selector_get_default_resource_id( $config ) { |
| 98 |
if ( ! empty( $config['resource_id'] ) ) { |
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return absint( $config['resource_id'] ); |
| 100 |
} |
| 101 |
|
| 102 |
return ! empty( $config['selected_resource_id'] ) ? absint( $config['selected_resource_id'] ) : 0; |
| 103 |
} |
| 104 |
|
| 105 |
/** |
| 106 |
* Normalize public shortcode attributes into the signed AJAX contract. |
| 107 |
* |
| 108 |
* The legacy-compatible aliases are accepted only at this boundary. AJAX and |
| 109 |
* submission requests carry one stable normalized representation. |
| 110 |
* |
| 111 |
* @param mixed $attributes Raw shortcode attributes or decoded configuration. |
| 112 |
* |
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* @return array<string,mixed> Safe Booking Resource selector configuration. |
| 114 |
*/ |
| 115 |
function wpbc_booking_resource_selector_normalize_config( $attributes ) { |
| 116 |
$attributes = is_array( $attributes ) ? $attributes : array(); |
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$defaults = array( |
| 118 |
'resource_id' => 0, |
| 119 |
'selected_resource_id' => 0, |
| 120 |
'resource_ids' => array(), |
| 121 |
'aggregate_resource_ids' => array(), |
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'cal_count' => 1, |
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'start_month_calendar' => false, |
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'calendar_dates_start' => '', |
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'calendar_dates_end' => '', |
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'selected_dates' => '', |
| 127 |
'options' => '', |
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'form_type' => '', |
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'auto_select_resource' => false, |
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'catalog_layout' => 'grid', |
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'show_resource_filters' => false, |
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'show_resource_image' => true, |
| 133 |
'show_resource_title' => true, |
| 134 |
'show_resource_description' => true, |
| 135 |
'catalog_item_width' => '', |
| 136 |
'catalog_item_max_width' => 0, |
| 137 |
'catalog_grid_items_per_row' => 0, |
| 138 |
'catalog_list_items_per_row' => 0, |
| 139 |
'show_resource_hierarchy' => true, |
| 140 |
'show_availability' => true, |
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'show_starting_price' => true, |
| 142 |
'show_progress' => true, |
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'progress_item_1_title' => null, |
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'progress_item_1_number' => null, |
| 145 |
'progress_item_2_title' => null, |
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'progress_item_2_number' => null, |
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'screen_1_title' => null, |
| 148 |
'screen_1_description' => null, |
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'allow_past' => false, |
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'return_url' => '', |
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); |
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|
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$attribute_aliases = array( |
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'resources' => 'resource_ids', |
| 155 |
'type' => 'resource_ids', |
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'aggregate' => 'aggregate_resource_ids', |
| 157 |
'nummonths' => 'cal_count', |
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'startmonth' => 'start_month_calendar', |
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'selected_type' => 'selected_resource_id', |
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'label' => 'screen_1_title', |
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); |
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foreach ( $attribute_aliases as $public_attribute => $normalized_attribute ) { |
| 163 |
if ( array_key_exists( $public_attribute, $attributes ) && ! array_key_exists( $normalized_attribute, $attributes ) ) { |
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$attributes[ $normalized_attribute ] = $attributes[ $public_attribute ]; |
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} |
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unset( $attributes[ $public_attribute ] ); |
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} |
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|
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$attributes = array_intersect_key( $attributes, $defaults ); |
| 170 |
$config = wp_parse_args( $attributes, $defaults ); |
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$config['resource_id'] = absint( $config['resource_id'] ); |
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$config['selected_resource_id'] = absint( $config['selected_resource_id'] ); |
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$config['resource_ids'] = wpbc_booking_resource_selector_normalize_ids( $config['resource_ids'] ); |
| 174 |
$config['aggregate_resource_ids'] = wpbc_booking_resource_selector_normalize_ids( $config['aggregate_resource_ids'] ); |
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$config['cal_count'] = min( 24, max( 1, absint( $config['cal_count'] ) ) ); |
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|
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$start_month = $config['start_month_calendar']; |
| 178 |
if ( is_array( $start_month ) ) { |
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$year = isset( $start_month[0] ) ? absint( $start_month[0] ) : 0; |
| 180 |
$month = isset( $start_month[1] ) ? absint( $start_month[1] ) : 0; |
| 181 |
$start_month = ( $year && $month >= 1 && $month <= 12 ) ? array( $year, $month ) : false; |
| 182 |
} elseif ( is_string( $start_month ) && preg_match( '/^(\d{4})[-\/]?(\d{1,2})$/', $start_month, $matches ) ) { |
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$month = absint( $matches[2] ); |
| 184 |
$start_month = ( $month >= 1 && $month <= 12 ) ? array( absint( $matches[1] ), $month ) : false; |
| 185 |
} else { |
| 186 |
$start_month = false; |
| 187 |
} |
| 188 |
$config['start_month_calendar'] = $start_month; |
| 189 |
|
| 190 |
foreach ( array( 'calendar_dates_start', 'calendar_dates_end' ) as $date_key ) { |
| 191 |
$date_value = sanitize_text_field( (string) $config[ $date_key ] ); |
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$config[ $date_key ] = preg_match( '/^\d{4}-\d{2}-\d{2}$/', $date_value ) ? $date_value : ''; |
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} |
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|
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$config['selected_dates'] = sanitize_text_field( (string) $config['selected_dates'] ); |
| 196 |
$config['options'] = sanitize_text_field( (string) $config['options'] ); |
| 197 |
$config['form_type'] = sanitize_text_field( (string) $config['form_type'] ); |
| 198 |
$config['return_url'] = esc_url_raw( (string) $config['return_url'] ); |
| 199 |
$config['auto_select_resource'] = wpbc_booking_resource_selector_normalize_boolean( $config['auto_select_resource'] ); |
| 200 |
$config['catalog_layout'] = 'list' === sanitize_key( (string) $config['catalog_layout'] ) ? 'list' : 'grid'; |
| 201 |
$config['show_resource_filters'] = wpbc_booking_resource_selector_normalize_boolean( $config['show_resource_filters'] ); |
| 202 |
$config['show_resource_image'] = wpbc_booking_resource_selector_normalize_boolean( $config['show_resource_image'], true ); |
| 203 |
$config['show_resource_title'] = wpbc_booking_resource_selector_normalize_boolean( $config['show_resource_title'], true ); |
| 204 |
$config['show_resource_description'] = wpbc_booking_resource_selector_normalize_boolean( $config['show_resource_description'], true ); |
| 205 |
$config['catalog_item_width'] = wpbc_booking_resource_selector_normalize_css_width( $config['catalog_item_width'] ); |
| 206 |
$config['catalog_item_max_width'] = absint( $config['catalog_item_max_width'] ); |
| 207 |
if ( $config['catalog_item_max_width'] > 0 ) { |
| 208 |
$config['catalog_item_max_width'] = min( 1200, max( 280, $config['catalog_item_max_width'] ) ); |
| 209 |
} |
| 210 |
$config['catalog_grid_items_per_row'] = min( 12, absint( $config['catalog_grid_items_per_row'] ) ); |
| 211 |
$config['catalog_list_items_per_row'] = min( 12, absint( $config['catalog_list_items_per_row'] ) ); |
| 212 |
$config['show_resource_hierarchy'] = wpbc_booking_resource_selector_normalize_boolean( $config['show_resource_hierarchy'], true ); |
| 213 |
$config['show_availability'] = wpbc_booking_resource_selector_normalize_boolean( $config['show_availability'], true ); |
| 214 |
$config['show_starting_price'] = wpbc_booking_resource_selector_normalize_boolean( $config['show_starting_price'], true ); |
| 215 |
$config['show_progress'] = wpbc_booking_resource_selector_normalize_boolean( $config['show_progress'], true ); |
| 216 |
$config['allow_past'] = wpbc_booking_resource_selector_normalize_boolean( $config['allow_past'] ); |
| 217 |
|
| 218 |
$display_text_keys = array( |
| 219 |
'progress_item_1_title', |
| 220 |
'progress_item_1_number', |
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'progress_item_2_title', |
| 222 |
'progress_item_2_number', |
| 223 |
'screen_1_title', |
| 224 |
'screen_1_description', |
| 225 |
); |
| 226 |
foreach ( $display_text_keys as $display_text_key ) { |
| 227 |
if ( null !== $config[ $display_text_key ] ) { |
| 228 |
$config[ $display_text_key ] = sanitize_text_field( (string) $config[ $display_text_key ] ); |
| 229 |
} |
| 230 |
} |
| 231 |
|
| 232 |
return (array) apply_filters( 'wpbc_booking_resource_selector_normalized_config', $config, $attributes ); |
| 233 |
} |
| 234 |
|
| 235 |
/** |
| 236 |
* Check whether signed selector configuration enables past bookings. |
| 237 |
* |
| 238 |
* @param array<string,mixed> $config Normalized or decoded configuration. |
| 239 |
* |
| 240 |
* @return bool True when the signed shortcode explicitly enables past bookings. |
| 241 |
*/ |
| 242 |
function wpbc_booking_resource_selector_is_past_booking_enabled( $config ) { |
| 243 |
return ! empty( $config['allow_past'] ); |
| 244 |
} |
| 245 |
|
| 246 |
/** |
| 247 |
* Base64-url encode a binary or text value without padding. |
| 248 |
* |
| 249 |
* @param string $raw_value Value to encode. |
| 250 |
* |
| 251 |
* @return string URL-safe encoded value. |
| 252 |
*/ |
| 253 |
function wpbc_booking_resource_selector_base64url_encode( $raw_value ) { |
| 254 |
return rtrim( strtr( base64_encode( (string) $raw_value ), '+/', '-_' ), '=' ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode |
| 255 |
} |
| 256 |
|
| 257 |
/** |
| 258 |
* Decode a base64-url value with strict validation. |
| 259 |
* |
| 260 |
* @param string $encoded_value Encoded value. |
| 261 |
* |
| 262 |
* @return string|false Decoded value or false. |
| 263 |
*/ |
| 264 |
function wpbc_booking_resource_selector_base64url_decode( $encoded_value ) { |
| 265 |
$encoded_value = strtr( (string) $encoded_value, '-_', '+/' ); |
| 266 |
$padding = strlen( $encoded_value ) % 4; |
| 267 |
if ( $padding ) { |
| 268 |
$encoded_value .= str_repeat( '=', 4 - $padding ); |
| 269 |
} |
| 270 |
|
| 271 |
return base64_decode( $encoded_value, true ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_decode |
| 272 |
} |
| 273 |
|
| 274 |
/** |
| 275 |
* Sign normalized shortcode configuration for public AJAX round trips. |
| 276 |
* |
| 277 |
* @param array<string,mixed> $config Normalized configuration. |
| 278 |
* |
| 279 |
* @return string Signed opaque configuration token. |
| 280 |
*/ |
| 281 |
function wpbc_booking_resource_selector_encode_config( $config ) { |
| 282 |
$payload = wpbc_booking_resource_selector_base64url_encode( wp_json_encode( wpbc_booking_resource_selector_normalize_config( $config ) ) ); |
| 283 |
$signature = hash_hmac( 'sha256', $payload, wp_salt( 'auth' ), true ); |
| 284 |
|
| 285 |
return $payload . '.' . wpbc_booking_resource_selector_base64url_encode( $signature ); |
| 286 |
} |
| 287 |
|
| 288 |
/** |
| 289 |
* Verify and decode a public AJAX configuration token. |
| 290 |
* |
| 291 |
* @param string $config_token Signed token. |
| 292 |
* |
| 293 |
* @return array<string,mixed>|WP_Error Normalized configuration or validation error. |
| 294 |
*/ |
| 295 |
function wpbc_booking_resource_selector_decode_config( $config_token ) { |
| 296 |
$parts = explode( '.', (string) $config_token, 2 ); |
| 297 |
if ( 2 !== count( $parts ) ) { |
| 298 |
return new WP_Error( 'resource_selector_config_invalid', __( 'The Booking Resource selection configuration is invalid. Reload the page and try again.', 'booking' ) ); |
| 299 |
} |
| 300 |
|
| 301 |
$expected_signature = hash_hmac( 'sha256', $parts[0], wp_salt( 'auth' ), true ); |
| 302 |
$actual_signature = wpbc_booking_resource_selector_base64url_decode( $parts[1] ); |
| 303 |
if ( false === $actual_signature || ! hash_equals( $expected_signature, $actual_signature ) ) { |
| 304 |
return new WP_Error( 'resource_selector_config_invalid', __( 'The Booking Resource selection configuration is invalid. Reload the page and try again.', 'booking' ) ); |
| 305 |
} |
| 306 |
|
| 307 |
$json_data = wpbc_booking_resource_selector_base64url_decode( $parts[0] ); |
| 308 |
$config_data = false !== $json_data ? json_decode( $json_data, true ) : null; |
| 309 |
if ( ! is_array( $config_data ) ) { |
| 310 |
return new WP_Error( 'resource_selector_config_invalid', __( 'The Booking Resource selection configuration is invalid. Reload the page and try again.', 'booking' ) ); |
| 311 |
} |
| 312 |
|
| 313 |
return wpbc_booking_resource_selector_normalize_config( $config_data ); |
| 314 |
} |
| 315 |
|
| 316 |
/** |
| 317 |
* Sign one server-validated Booking Resource for final booking submission. |
| 318 |
* |
| 319 |
* @param array<string,mixed> $config Original normalized configuration. |
| 320 |
* @param int $resource_id Selected Booking Resource ID. |
| 321 |
* |
| 322 |
* @return string Signed selection token, or an empty string for an invalid ID. |
| 323 |
*/ |
| 324 |
function wpbc_booking_resource_selector_encode_submission_context( $config, $resource_id ) { |
| 325 |
$resource_id = absint( $resource_id ); |
| 326 |
if ( ! $resource_id ) { |
| 327 |
return ''; |
| 328 |
} |
| 329 |
|
| 330 |
$context = wpbc_booking_resource_selector_normalize_config( $config ); |
| 331 |
$context['resource_id'] = $resource_id; |
| 332 |
$context['resource_ids'] = array( $resource_id ); |
| 333 |
$context['selected_resource_id'] = 0; |
| 334 |
|
| 335 |
return wpbc_booking_resource_selector_encode_config( $context ); |
| 336 |
} |
| 337 |
|
| 338 |
/** |
| 339 |
* Verify that a signed selector submission context matches a resource. |
| 340 |
* |
| 341 |
* @param string $context_token Signed selector context token. |
| 342 |
* @param int $resource_id Submitted Booking Resource ID. |
| 343 |
* |
| 344 |
* @return array<string,mixed>|WP_Error Verified context or controlled error. |
| 345 |
*/ |
| 346 |
function wpbc_booking_resource_selector_validate_submission_context( $context_token, $resource_id ) { |
| 347 |
$resource_id = absint( $resource_id ); |
| 348 |
if ( '' === trim( (string) $context_token ) ) { |
| 349 |
return new WP_Error( 'resource_selector_context_required', __( 'The Booking Resource selection has expired. Please start over and try again.', 'booking' ) ); |
| 350 |
} |
| 351 |
|
| 352 |
$context = wpbc_booking_resource_selector_decode_config( $context_token ); |
| 353 |
if ( is_wp_error( $context ) ) { |
| 354 |
return new WP_Error( 'resource_selector_context_invalid', __( 'The Booking Resource selection is invalid. Please start over and try again.', 'booking' ) ); |
| 355 |
} |
| 356 |
if ( absint( $context['resource_id'] ) !== $resource_id ) { |
| 357 |
return new WP_Error( 'resource_selector_context_mismatch', __( 'The selected Booking Resource does not match this booking form. Please start over and try again.', 'booking' ) ); |
| 358 |
} |
| 359 |
|
| 360 |
return $context; |
| 361 |
} |
| 362 |
|
