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Commit a4e2f383 authored by Brion Vibber's avatar Brion Vibber

Slightly fancier debug code for PuSH hmac mismatches -- save the post to a...

Slightly fancier debug code for PuSH hmac mismatches -- save the post to a temp file if feedsub/debug is on in config.
parent dd48bdb1
......@@ -483,11 +483,19 @@ class FeedSub extends Memcached_DataObject
if ($this->secret) {
if (preg_match('/^sha1=([0-9a-fA-F]{40})$/', $hmac, $matches)) {
$their_hmac = strtolower($matches[1]);
$our_hmac = hash_hmac('sha1', $post, $this->secret);
$our_hmac = hash_hmac('sha1', $post, $this->secret) . 'x';
if ($their_hmac === $our_hmac) {
return true;
}
common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH with bad SHA-1 HMAC: got $their_hmac, expected $our_hmac for feed $this->uri on $this->huburi");
if (common_config('feedsub', 'debug')) {
$tempfile = tempnam(sys_get_temp_dir(), 'feedsub-receive');
if ($tempfile) {
file_put_contents($tempfile, $post);
}
common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH with bad SHA-1 HMAC: got $their_hmac, expected $our_hmac for feed $this->uri on $this->huburi; saved to $tempfile");
} else {
common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH with bad SHA-1 HMAC: got $their_hmac, expected $our_hmac for feed $this->uri on $this->huburi");
}
} else {
common_log(LOG_ERR, __METHOD__ . ": ignoring PuSH with bogus HMAC '$hmac'");
}
......
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