better/new proxy auto config

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6010 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/autoconfig.java

@@ -30,6 +30,7 @@ import de.anomic.server.serverSwitch;
 
 public class autoconfig {
     
+	// http://web.archive.org/web/20071011034022/http://wp.netscape.com/eng/mozilla/2.0/relnotes/demo/proxy-live.html
     /**
      * Generates a proxy-autoconfig-file (application/x-ns-proxy-autoconfig) 
      * See: <a href="http://wp.netscape.com/eng/mozilla/2.0/relnotes/demo/proxy-live.html">Proxy Auto-Config File Format</a> 

htroot/autoconfig.pac

@@ -1,10 +1,18 @@
 function FindProxyForURL(url,host) {
-	if ((isPlainHostName(host))||
-	    (host=="127.0.0.1")) {
-		return "DIRECT";	    
-	} else if (url.substring(0, 4).toLowerCase() == "ftp:") {
+    // http only
+    if (!(url.substring(0, 5).toLowerCase() == "http:")) {
         return "DIRECT";
-    } else  {
-		return "PROXY #[host]#:#[port]#, DIRECT";
-	}
+    }
+    
+    // no local adresses
+    ip = dnsResolve(host);
+    if (   isInNet(ip, "127.0.0.0", "255.0.0.0")
+        || isInNet(ip, "192.168.0.0", "255.255.0.0")
+        || isInNet(ip, "10.0.0.0", "255.0.0.0")
+        || isInNet(ip, "172.16.0.0", "255.240.0.0") ) {
+        return "DIRECT";
+     }
+     
+     // then
+     return "PROXY #[host]#:#[port]#, DIRECT";
 }