+ $return_code = $a->get_curl_code();
+
+ // check for success, e.g. 2xx
+
+ if($return_code > 299) {
+
+ logger('slapper: compliant salmon failed. Falling back to status.net hack2');
+
+ // Entirely likely that their salmon implementation is
+ // non-compliant. Let's try once more, this time only signing
+ // the data, without stripping '=' chars
+
+ $salmon = replace_macros($salmon_tpl,array(
+ '$data' => $data,
+ '$encoding' => $encoding,
+ '$algorithm' => $algorithm,
+ '$keyhash' => $keyhash,
+ '$signature' => $signature2
+ ));
+
+ // slap them
+ post_url($url,$salmon, array(
+ 'Content-type: application/magic-envelope+xml',
+ 'Content-length: ' . strlen($salmon)
+ ));
+ $return_code = $a->get_curl_code();
+
+
+ if($return_code > 299) {
+
+ logger('slapper: compliant salmon failed. Falling back to status.net hack3');
+
+ // 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' => $signature3
+ ));
+
+ // slap them
+ post_url($url,$salmon, array(
+ 'Content-type: application/magic-envelope+xml',
+ 'Content-length: ' . strlen($salmon)
+ ));
+ $return_code = $a->get_curl_code();
+ }
+ }
+ logger('slapper returned ' . $return_code);
+ if(! $return_code)
+ return(-1);
+ if(($return_code == 503) && (stristr($a->get_curl_headers(),'retry-after')))
+ return(-1);
+
+ return ((($return_code >= 200) && ($return_code < 300)) ? 0 : 1);
+}
+