$library,
'value' => $value,
'width' => $width,
'height' => $height,
'paths' => array_values( $paths ),
];
$existing = self::get_entry( $library, $value );
if ( null !== $existing ) {
if ( self::is_invalid_entry( $existing ) || current_user_can( 'manage_options' ) ) {
update_option( $option_name, $entry, false );
self::$entries_cache[ $option_name ] = $entry;
}
return true;
}
if ( self::count_entries() >= self::MAX_ENTRIES ) {
return new \WP_Error( 'font_awesome_pro_icon_limit', __( 'Too many stored icons.', 'elementor-pro' ) );
}
if ( add_option( $option_name, $entry, '', false ) ) {
self::$entries_cache[ $option_name ] = $entry;
} elseif ( self::is_unusable_row( $option_name ) ) {
// A corrupt or colliding row would otherwise block this icon for good.
delete_option( $option_name );
self::$entries_cache[ $option_name ] = add_option( $option_name, $entry, '', false ) ? $entry : null;
} else {
unset( self::$entries_cache[ $option_name ] );
}
return true;
}
public static function resolve( array $icon ): string {
$library = isset( $icon['library'] ) && is_string( $icon['library'] ) ? $icon['library'] : '';
$value = isset( $icon['value'] ) && is_string( $icon['value'] ) ? $icon['value'] : '';
if ( ! self::is_font_awesome_pro_library( $library ) || '' === $value ) {
return '';
}
$entry = self::get_entry( $library, $value );
if ( null === $entry || self::is_invalid_entry( $entry ) ) {
return '';
}
$paths_markup = '';
foreach ( $entry['paths'] as $path ) {
$paths_markup .= '';
}
$svg = sprintf(
'',
(int) $entry['width'],
(int) $entry['height'],
$paths_markup
);
$sanitized = ( new Svg_Sanitizer() )->sanitize( $svg );
return is_string( $sanitized ) ? $sanitized : '';
}
private static function validate( string $library, string $value, int $width, int $height, array $paths ) {
$valid = self::is_font_awesome_pro_library( $library )
&& 0 === strpos( $value, $library . ' fa-' )
&& 1 === preg_match( self::VALUE_PATTERN, $value )
&& $width >= 1 && $width <= self::MAX_DIMENSION
&& $height >= 1 && $height <= self::MAX_DIMENSION
&& count( $paths ) >= 1 && count( $paths ) <= self::MAX_PATHS;
$total_length = 0;
if ( $valid ) {
foreach ( $paths as $path ) {
if ( ! is_string( $path ) || strlen( $path ) > self::MAX_PATH_LENGTH || 1 !== preg_match( self::PATH_PATTERN, $path ) ) {
$valid = false;
break;
}
$total_length += strlen( $path );
}
}
$valid = $valid && $total_length <= self::MAX_TOTAL_PATH_LENGTH;
return $valid ? null : new \WP_Error( 'invalid_font_awesome_pro_icon', __( 'Invalid icon data.', 'elementor-pro' ) );
}
private static function get_option_name( string $library, string $value ): string {
return self::OPTION_PREFIX . md5( $library . ':' . $value );
}
private static function get_entry( string $library, string $value ): ?array {
$option_name = self::get_option_name( $library, $value );
if ( ! array_key_exists( $option_name, self::$entries_cache ) ) {
$entry = get_option( $option_name, null );
self::$entries_cache[ $option_name ] = is_array( $entry ) ? $entry : null;
}
$entry = self::$entries_cache[ $option_name ];
$matches = is_array( $entry )
&& ( $entry['library'] ?? null ) === $library
&& ( $entry['value'] ?? null ) === $value;
return $matches ? $entry : null;
}
private static function is_unusable_row( string $option_name ): bool {
unset( self::$entries_cache[ $option_name ] );
wp_cache_delete( $option_name, 'options' );
$entry = get_option( $option_name, null );
if ( ! is_array( $entry ) ) {
return null !== $entry;
}
$library = $entry['library'] ?? null;
$value = $entry['value'] ?? null;
if ( ! is_string( $library ) || ! is_string( $value ) || self::get_option_name( $library, $value ) !== $option_name ) {
return true;
}
return self::is_invalid_entry( $entry );
}
private static function is_invalid_entry( array $entry ): bool {
return null !== self::validate(
is_string( $entry['library'] ?? null ) ? $entry['library'] : '',
is_string( $entry['value'] ?? null ) ? $entry['value'] : '',
(int) ( $entry['width'] ?? 0 ),
(int) ( $entry['height'] ?? 0 ),
(array) ( $entry['paths'] ?? [] )
);
}
private static function count_entries(): int {
global $wpdb;
return (int) $wpdb->get_var( $wpdb->prepare(
"SELECT COUNT(*) FROM {$wpdb->options} WHERE option_name LIKE %s",
$wpdb->esc_like( self::OPTION_PREFIX ) . '%'
) );
}
}