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50 lines
1.4 KiB
50 lines
1.4 KiB
<?php
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namespace p3k\XRay;
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trait HTTPSig {
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protected function _headersToSigningString($headers) {
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return implode("\n", array_map(function($k, $v){
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return strtolower($k).': '.$v;
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}, array_keys($headers), $headers));
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}
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protected function _headersToCurlArray($headers) {
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return array_map(function($k, $v){
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return "$k: $v";
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}, array_keys($headers), $headers);
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}
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protected function _digest($payload) {
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return base64_encode(hash('sha256', $payload, true));
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}
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protected function _headersToSign($target, $date) {
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$headers = [
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'(request-target)' => 'get '.parse_url($target, PHP_URL_PATH),
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'Date' => $date,
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'Host' => parse_url($target, PHP_URL_HOST),
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'Content-Type' => 'application/activity+json',
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];
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return $headers;
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}
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protected function _httpSign(&$headers, $key) {
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$stringToSign = $this->_headersToSigningString($headers);
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$signedHeaders = implode(' ', array_map('strtolower', array_keys($headers)));
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$privateKey = openssl_pkey_get_private('file://'.$key['key']);
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openssl_sign($stringToSign, $signature, $privateKey, OPENSSL_ALGO_SHA256);
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$signature = base64_encode($signature);
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$signatureHeader = 'keyId="'.$key['keyId'].'",headers="'.$signedHeaders.'",algorithm="rsa-sha256",signature="'.$signature.'"';
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unset($headers['(request-target)']);
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$headers['Signature'] = $signatureHeader;
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}
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}
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