mirror of https://github.com/friendica/friendica
68 lines
1.5 KiB
PHP
68 lines
1.5 KiB
PHP
<?php
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namespace Friendica\Util;
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use Friendica\Model\Group;
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/**
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* Util class for ACL formatting
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*/
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final class ACLFormatter
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{
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/**
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* Turn user/group ACLs stored as angle bracketed text into arrays
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*
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* @param string $ids A angle-bracketed list of IDs
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*
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* @return array The array based on the IDs
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*/
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public function expand(string $ids)
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{
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// turn string array of angle-bracketed elements into numeric array
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// e.g. "<1><2><3>" => array(1,2,3);
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preg_match_all('/<(' . Group::FOLLOWERS . '|'. Group::MUTUALS . '|[0-9]+)>/', $ids, $matches, PREG_PATTERN_ORDER);
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return $matches[1];
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}
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/**
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* Wrap ACL elements in angle brackets for storage
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*
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* @param string $item The item to sanitise
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*/
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private function sanitize(string &$item) {
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if (intval($item)) {
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$item = '<' . intval(Strings::escapeTags(trim($item))) . '>';
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} elseif (in_array($item, [Group::FOLLOWERS, Group::MUTUALS])) {
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$item = '<' . $item . '>';
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} else {
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$item = '';
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}
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}
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/**
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* Convert an ACL array to a storable string
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*
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* Normally ACL permissions will be an array.
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* We'll also allow a comma-separated string.
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*
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* @param string|array $permissions
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*
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* @return string
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*/
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function toString($permissions) {
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$return = '';
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if (is_array($permissions)) {
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$item = $permissions;
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} else {
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$item = explode(',', $permissions);
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}
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if (is_array($item)) {
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array_walk($item, [$this, 'sanitize']);
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$return = implode('', $item);
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}
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return $return;
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}
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}
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