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more robust (though wasteful) salmon, try both encodings

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Mike Macgirvin 2010-10-26 15:56:19 -07:00
parent d2e20d029a
commit d453560be9
1 changed files with 34 additions and 3 deletions
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35
include/salmon.php
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@ -130,7 +130,13 @@ EOT;
$rsa->setHash('sha256');
$rsa->loadKey($owner['sprvkey']);
$signature = base64url_encode($rsa->sign($data));
// precomputed base64url encoding of data_type, encoding, algorithm concatenated with periods
$precomputed = '.YXBwbGljYXRpb24vYXRvbSt4bWw=.YmFzZTY0dXJs.UlNBLVNIQTI1Ng==';
$signature = base64url_encode($rsa->sign($data . $precomputed));
$signature2 = base64url_encode($rsa->sign($data));
$salmon_tpl = load_view_file('view/magicsig.tpl');
$salmon = replace_macros($salmon_tpl,array(
@ -148,7 +154,32 @@ EOT;
));
$a = get_app();
echo "CURL returned: " . $a->get_curl_code() . "\n";
$return_code = trim($a->get_curl_code);
// check for success, e.g. 2xx
if(substr($return_code,0,1) !== '2') {
// Entirely likely that their salmon implementation is
// non-compliant. Let's try once more, this time only signing
// the data, without the precomputed blob
$salmon = replace_macros($salmon_tpl,array(
'$data' => $data,
'$encoding' => $encoding,
'$algorithm' => $algorithm,
'$keyhash' => $keyhash,
'$signature' => $signature2
));
// slap them
post_url($contact['notify'],$salmon, array(
'Content-type: application/magic-envelope+xml',
'Content-length: ' . strlen($salmon)
));
$return_code = trim($a->get_curl_code);
}
return;
}