X-Git-Url: https://git.harvie.cz/?a=blobdiff_plain;f=wwwroot%2Fbackend%2Fmysql%2Fbackend.inc;h=daba57b314d00aced86904a748ebd0d60c94d845;hb=78f1a5f44941de2459b71c375e36cf88227c689c;hp=ac554ed3691877192c2532a6175d4f2948c0c246;hpb=73063beda0d86dd5bc774701941a8653fa0c823e;p=mirrors%2FKyberia-bloodline.git

diff --git a/wwwroot/backend/mysql/backend.inc b/wwwroot/backend/mysql/backend.inc
index ac554ed..daba57b 100644
--- a/wwwroot/backend/mysql/backend.inc
+++ b/wwwroot/backend/mysql/backend.inc
@@ -181,9 +181,9 @@ function getUserByLogin($login) {
 static function getNodeIdByName($name, $external_link=false) {
 	global $db;
 
-	$qh = sprintf('select node_id from nodes where node_name = "%s"', mysql_real_escape_string($name));
+	$qh = sprintf('select node_id from nodes where node_name = "%s"', db_escape_string($name));
     	if ($external_link)
-		$qh .= sprintf(' and external_link="%s"', mysql_real_escape_string($external_link));
+		$qh .= sprintf(' and external_link="%s"', db_escape_string($external_link));
 
 	$set = $db->query($qh);
 	$set->next();
@@ -341,32 +341,45 @@ function getKNeurons($user_id,$interval) {
 	return $k_array;
 }
 
-// Set synapse weight,
+// setSynapse
 
-// Secure
-// Returns true on sucess, otherwise false
+// Set synapse weight. 
+// If synapse does not exists, create a new one.
+// Secure.
+// Returns true on sucess, otherwise false.
 
-// XXX TODO
-
-function setSynapse($src,$dst,$weight) {
+function setSynapse($params){
 	global $db,$node,$error,$error_messages;
 
-	if ((!is_numeric($src)) or (!is_numeric($dst)) or (!is_numeric($weight))) {
+	// security check
+	if ((!is_numeric($params['src'])) 
+		or (!is_numeric($params['dst']))
+		or (!is_numeric($params['weight']))) {
+
+		return false;
+	}
+
+	$src=$params['src'];
+	$dst=$params['dst'];
+	$weight=$params['weight'];
+
+	// weight could be only positive
+	if ( $weight < 0) {
 		return false;
 	}
 
 	// if already exists
-	$q="select src from neurons where dst ='$dst' and src = '$src'";
+	$q="select count(src) from neurons where dst ='$dst' and src = '$src'";
 	$set=$db->query($q);
-
 	$set->next();
-	$isrc=$set->getString('src');
-	if ( $set ) {
-		$q="update neurons set synapse_weight='$synapse_weight' 
+	$isrc=$set->getString('count(src)');
+
+	if ( $isrc > 0 ) {
+		$q="update neurons set synapse_weight='$weight' 
 			where dst = '$dst' and src = '$src'";
 	} else { 
 		// FIXME no vector set
-		$q="insert into neurons values('$synapse_weight','$dst','$src',0,'synapse',
+		$q="insert into neurons values('$weight','$dst','$src',0,'synapse',
 						CURRENT_TIMESTAMP(),now(),NULL,$src)";
 	}
 	$set=$db->query($q);
@@ -374,6 +387,31 @@ function setSynapse($src,$dst,$weight) {
 	return true;
 }
 
+// getSynapseWeight
+
+// If synapse does not exists, weight is 1
+// Secure.
+// Returns synapse weight (from user to node)
 
+function getSynapseWeight($user_id,$node_id){
+	global $db;
+
+	if (!is_numeric($user_id)) 
+		{ return -1; }
+	if (!is_numeric($node_id)) 
+		{ return -1; }
+
+	$set=$db->query("select synapse_weight from neurons where src =".
+		$user_id." and dst = ".$node_id." and link='synapse'");
+
+	$set->next();
+	$synapse_weight=$set->getString('synapse_weight');
+
+	if (! ($synapse_weight) ) { $synapse_weight = 1;}	
+
+	return $synapse_weight;
 
 }
+}
+
+?>