X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fsalmon.php;h=3d525f51ad36d0a2d55349937c140e404f8b56ea;hb=17236b18011f6c2fa7df7d1433dd815d4438baf8;hp=c5ad3e82561c8a304cc6f71541d84bbdd14caab4;hpb=b41218ca303b9fd8258fd613915d3c4b9fd411c0;p=friendica.git

diff --git a/include/salmon.php b/include/salmon.php
index c5ad3e8256..3d525f51ad 100644
--- a/include/salmon.php
+++ b/include/salmon.php
@@ -1,37 +1,13 @@
 <?php
 
-require_once('library/asn1.php');
+require_once('include/crypto.php');
 
-function salmon_key($pubkey) {
-	$lines = explode("\n",$pubkey);
-	unset($lines[0]);
-	unset($lines[count($lines)]);
-	$x = base64_decode(implode('',$lines));
 
-	$r = ASN_BASE::parseASNString($x);
-
-	$m = $r[0]->asnData[1]->asnData[0]->asnData[0]->asnData;
-	$e = $r[0]->asnData[1]->asnData[0]->asnData[1]->asnData;
-
-
-	return 'RSA' . '.' . $m . '.' . $e ;
-}
-
-
-function base64url_encode($s) {
-	return strtr(base64_encode($s),'+/','-_');
-}
-
-function base64url_decode($s) {
-	return base64_decode(strtr($s,'-_','+/'));
-}
 
 function get_salmon_key($uri,$keyhash) {
 	$ret = array();
 
-	$debugging = get_config('system','debugging');
-	if($debugging)		
-		file_put_contents('salmon.out', "\n" . 'Fetch key' . "\n", FILE_APPEND);
+	logger('Fetching salmon key');
 
 	$arr = lrdd($uri);
 
@@ -62,8 +38,8 @@ function get_salmon_key($uri,$keyhash) {
 		}
 	}
 
-	if($debugging)
-		file_put_contents('salmon.out', "\n" . 'Key located: ' . print_r($ret,true) . "\n", FILE_APPEND);
+
+	logger('Key located: ' . print_r($ret,true));
 
 	if(count($ret) == 1) {
 
@@ -88,13 +64,21 @@ function get_salmon_key($uri,$keyhash) {
 
 	
 		
-function slapper($owner,$contact,$slap) {
+function slapper($owner,$url,$slap) {
 
+	logger('slapper called. Data: ' . $slap);
 
 	// does contact have a salmon endpoint? 
 
-	if(! strlen($contact['notify']))
+	if(! strlen($url))
+		return;
+
+
+	if(! $owner['sprvkey']) {
+		logger(sprintf("slapper: user '%s' (%d) does not have a salmon private key. Send failed.",
+		$owner['username'],$owner['uid']));
 		return;
+	}
 
 	// add all namespaces to item
 
@@ -105,7 +89,10 @@ $namespaces = <<< EOT
       xmlns:media="http://purl.org/syndication/atommedia"
       xmlns:dfrn="http://purl.org/macgirvin/dfrn/1.0" 
       xmlns:as="http://activitystrea.ms/spec/1.0/"
-      xmlns:georss="http://www.georss.org/georss" >
+      xmlns:georss="http://www.georss.org/georss" 
+      xmlns:poco="http://portablecontacts.net/spec/1.0" 
+      xmlns:ostatus="http://ostatus.org/schema/1.0" 
+	  xmlns:statusnet="http://status.net/schema/api/1/" >													>
 EOT;
 
 	$slap = str_replace('<entry>',$namespaces,$slap);
@@ -116,22 +103,20 @@ EOT;
 	$data_type = 'application/atom+xml';
 	$encoding  = 'base64url';
 	$algorithm = 'RSA-SHA256';
-	$keyhash   = base64url_encode(hash('sha256',salmon_key($owner['spubkey'])));
+	$keyhash   = base64url_encode(hash('sha256',salmon_key($owner['spubkey'])),true);
+
+	// precomputed base64url encoding of data_type, encoding, algorithm concatenated with periods
 
-	// Setup RSA stuff to PKCS#1 sign the data
+	$precomputed = '.YXBwbGljYXRpb24vYXRvbSt4bWw=.YmFzZTY0dXJs.UlNBLVNIQTI1Ng==';
 
-	set_include_path(get_include_path() . PATH_SEPARATOR . 'phpsec');
+	$signature   = base64url_encode(rsa_sign(str_replace('=','',$data . $precomputed),$owner['sprvkey']));
 
-	require_once('phpsec/Crypt/RSA.php');
+	$signature2  = base64url_encode(rsa_sign($data . $precomputed,$owner['sprvkey']));
 
-    $rsa = new CRYPT_RSA();
-    $rsa->signatureMode = CRYPT_RSA_SIGNATURE_PKCS1;
-    $rsa->setHash('sha256');
-	$rsa->loadKey($owner['sprvkey']);
+	$signature3  = base64url_encode(rsa_sign($data,$owner['sprvkey']));
 
-    $signature = $rsa->sign($data);
+	$salmon_tpl = get_markup_template('magicsig.tpl');
 
-	$salmon_tpl = load_view_file('view/magicsig.tpl');
 	$salmon = replace_macros($salmon_tpl,array(
 		'$data'      => $data,
 		'$encoding'  => $encoding,
@@ -141,7 +126,70 @@ EOT;
 	));
 
 	// slap them 
-	post_url($contact['notify'],$salmon);
+	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(! $return_code)
+		return(-1);
+	if(($return_code == 503) && (stristr($a->get_curl_headers(),'retry-after')))
+		return(-1);
+
+	return ((($return_code >= 200) && ($return_code < 300)) ? 0 : 1);
+}
 
-	return;
-}
\ No newline at end of file