> EOT; $slap = str_replace('',$namespaces,$slap); // create a magic envelope $data = base64url_encode($slap); $data_type = 'application/atom+xml'; $encoding = 'base64url'; $algorithm = 'RSA-SHA256'; $keyhash = base64url_encode(hash('sha256',salmon_key($owner['spubkey'])),true); // precomputed base64url encoding of data_type, encoding, algorithm concatenated with periods $precomputed = '.YXBwbGljYXRpb24vYXRvbSt4bWw=.YmFzZTY0dXJs.UlNBLVNIQTI1Ng=='; $signature = base64url_encode(rsa_sign(str_replace('=','',$data . $precomputed),true),$owner['sprvkey']); $signature2 = base64url_encode(rsa_sign($data . $precomputed),$owner['sprvkey']); $signature3 = base64url_encode(rsa_sign($data),$owner['sprvkey']); $salmon_tpl = get_markup_template('magicsig.tpl'); $salmon = replace_macros($salmon_tpl,array( '$data' => $data, '$encoding' => $encoding, '$algorithm' => $algorithm, '$keyhash' => $keyhash, '$signature' => $signature )); // slap them post_url($url,$salmon, array( 'Content-type: application/magic-envelope+xml', 'Content-length: ' . strlen($salmon) )); $a = get_app(); $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(! $return_code) return(-1); return ((($return_code >= 200) && ($return_code < 300)) ? 0 : 1); }