Changeset 24455 for main/trunk/greenstone3/src/java/org/greenstone/server/Server2.java

Timestamp:

2011-08-23T20:28:57+12:00 (13 years ago)

Author:

ak19

Message:

Better way to ensure that the port is not arbitrarily modified. This bypasses the need to turn on the Do Not Modify Port server setting option by default, which then bypasses the need to make 8282 the default port for GS2 (which would have been necessary since the old GS2 default port of 80 would not have coped well with the Do Not Modify Port switch turned on by default).

File:

• main/trunk/greenstone3/src/java/org/greenstone/server/Server2.java (modified) (3 diffs)

main/trunk/greenstone3/src/java/org/greenstone/server/Server2.java

@@ -292 +292 @@
     }
 
-    public void reloadConfigProperties() {
-    super.reloadConfigProperties();
+    public void reloadConfigProperties(boolean port_has_changed) {
+    super.reloadConfigProperties(port_has_changed);
 
     // make sure the port is okay, otherwise find another port
     // first choice is port 80, second choice starts at 8282
     String port = config_properties.getProperty("portnumber", "80");
-    String keepport = config_properties.getProperty("keepport", "0"); // default is to not try to keep the same port
+    String keepport = config_properties.getProperty("keepport", "0"); // default is to not try to force the same port if in use by other servers
 
     int portDefault = 8282;
     try {
-        int portNum = Integer.parseInt(port);
-        boolean verbose = true;
-        if(!PortFinder.isPortAvailable(portNum, verbose)) { // first time, print any Port Unavailable messages
+      int portNum = Integer.parseInt(port);
+      boolean verbose = true;
+      if(port_has_changed) { // this is the test that prevents the server from arbitrarily shifting the port. 
+                            // only check at configured port if it's not the current port (the port we
+                            // are still running on), because that will always be in use and unavailable.
+        if(!PortFinder.isPortAvailable(portNum, verbose)) { // first time, print any Port Unavailable messages
         if(keepport.equals("1")) {
             String errorMsg = "Unable to run the Greenstone server on port " + port + ". It may already be in use.";
@@ -311 +314 @@
             System.err.println("If you wish to try another port, go to File > Settings of the Greenstone Server interface and either change the port number or untick the \"Do Not Modify Port\" option there. Then press the \"Enter Library\" button.");
             System.err.println("******************\n");
-        } else {
-
+        } else { // can modify port, try to find a new port
+        
             PortFinder portFinder = new PortFinder(portDefault, 101);
             // Search for a free port silently from now on--don't want more
@@ -336 +339 @@
             System.err.println("Running server on port " + port + ".");
         }
-        }    
+        }
+      } 
     } catch (Exception e) {
         recordError("Exception in Server2.reload(): " + e.getMessage());