40 lines
1.0 KiB
PHP
40 lines
1.0 KiB
PHP
<?php
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namespace dokuwiki\HTTP;
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/**
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* Utilities to send HTTP Headers
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*/
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class Headers
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{
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/**
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* Send a Content-Security-Polica Header
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*
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* Expects an associative array with individual policies and their values
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*
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* @param array $policy
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*/
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public static function contentSecurityPolicy($policy)
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{
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foreach ($policy as $key => $values) {
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// if the value is not an array, we also accept newline terminated strings
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if (!is_array($values)) $values = explode("\n", $values);
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$values = array_map('trim', $values);
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$values = array_unique($values);
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$values = array_filter($values);
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$policy[$key] = $values;
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}
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$cspheader = 'Content-Security-Policy:';
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foreach ($policy as $key => $values) {
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if ($values) {
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$cspheader .= " $key " . implode(' ', $values) . ';';
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} else {
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$cspheader .= " $key;";
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}
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}
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header($cspheader);
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}
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}
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