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Update HttpSignature, add signRaw method and improve error checking

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Daniel Supernault 2024-09-07 00:16:59 -06:00
parent 991b3e5792
commit d4cf918120
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GPG key ID: 23740873EE6F76A1
1 changed files with 34 additions and 0 deletions
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34
app/Util/ActivityPub/HttpSignature.php
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@ -25,7 +25,13 @@ class HttpSignature
$stringToSign = self::_headersToSigningString($headers);
$signedHeaders = implode(' ', array_map('strtolower', array_keys($headers)));
$key = openssl_pkey_get_private($user->private_key);
if (empty($key)) {
return [];
}
openssl_sign($stringToSign, $signature, $key, OPENSSL_ALGO_SHA256);
if (empty($signature)) {
return [];
}
$signature = base64_encode($signature);
$signatureHeader = 'keyId="'.$user->keyId().'",headers="'.$signedHeaders.'",algorithm="rsa-sha256",signature="'.$signature.'"';
unset($headers['(request-target)']);
@ -34,6 +40,34 @@ class HttpSignature
return self::_headersToCurlArray($headers);
}
public static function signRaw($privateKey, $keyId, $url, $body = false, $addlHeaders = [])
{
if (empty($privateKey) || empty($keyId)) {
return [];
}
if ($body) {
$digest = self::_digest($body);
}
$headers = self::_headersToSign($url, $body ? $digest : false);
$headers = array_merge($headers, $addlHeaders);
$stringToSign = self::_headersToSigningString($headers);
$signedHeaders = implode(' ', array_map('strtolower', array_keys($headers)));
$key = openssl_pkey_get_private($privateKey);
if (empty($key)) {
return [];
}
openssl_sign($stringToSign, $signature, $key, OPENSSL_ALGO_SHA256);
if (empty($signature)) {
return [];
}
$signature = base64_encode($signature);
$signatureHeader = 'keyId="'.$keyId.'",headers="'.$signedHeaders.'",algorithm="rsa-sha256",signature="'.$signature.'"';
unset($headers['(request-target)']);
$headers['Signature'] = $signatureHeader;
return self::_headersToCurlArray($headers);
}
public static function instanceActorSign($url, $body = false, $addlHeaders = [], $method = 'post')
{
$keyId = config('app.url').'/i/actor#main-key';