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-rw-r--r--Zotlabs/Web/HTTPSig.php5
1 files changed, 4 insertions, 1 deletions
diff --git a/Zotlabs/Web/HTTPSig.php b/Zotlabs/Web/HTTPSig.php
index 36a00528e..439ca472b 100644
--- a/Zotlabs/Web/HTTPSig.php
+++ b/Zotlabs/Web/HTTPSig.php
@@ -27,9 +27,12 @@ class HTTPSig {
* @param string $alg hash algorithm (one of 'sha256','sha512')
* @return string The generated digest header string for $body
*/
-
static function generate_digest_header($body, $alg = 'sha256') {
+ if ($body === null) {
+ $body = '';
+ }
+
$digest = base64_encode(hash($alg, $body, true));
switch ($alg) {
case 'sha512':