| 1 |
+ |
/* |
| 2 |
+ |
* i-scream central monitoring system |
| 3 |
+ |
* http://www.i-scream.org |
| 4 |
+ |
* Copyright (C) 2000-2002 i-scream |
| 5 |
+ |
* |
| 6 |
+ |
* This program is free software; you can redistribute it and/or |
| 7 |
+ |
* modify it under the terms of the GNU General Public License |
| 8 |
+ |
* as published by the Free Software Foundation; either version 2 |
| 9 |
+ |
* of the License, or (at your option) any later version. |
| 10 |
+ |
* |
| 11 |
+ |
* This program is distributed in the hope that it will be useful, |
| 12 |
+ |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
+ |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
+ |
* GNU General Public License for more details. |
| 15 |
+ |
* |
| 16 |
+ |
* You should have received a copy of the GNU General Public License |
| 17 |
+ |
* along with this program; if not, write to the Free Software |
| 18 |
+ |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 |
+ |
*/ |
| 20 |
+ |
|
| 21 |
|
//---PACKAGE DECLARATION--- |
| 22 |
< |
package uk.ac.ukc.iscream.clientinterface; |
| 22 |
> |
package uk.org.iscream.cms.server.clientinterface; |
| 23 |
|
|
| 24 |
|
//---IMPORTS--- |
| 25 |
< |
import uk.ac.ukc.iscream.util.*; |
| 26 |
< |
import uk.ac.ukc.iscream.core.*; |
| 27 |
< |
import uk.ac.ukc.iscream.componentmanager.*; |
| 25 |
> |
import uk.org.iscream.cms.util.*; |
| 26 |
> |
import uk.org.iscream.cms.server.core.*; |
| 27 |
> |
import uk.org.iscream.cms.server.componentmanager.*; |
| 28 |
|
import java.io.IOException; |
| 29 |
|
import java.net.Socket; |
| 30 |
|
import java.net.ServerSocket; |
| 32 |
|
import java.net.UnknownHostException; |
| 33 |
|
|
| 34 |
|
/** |
| 35 |
< |
* Listener for incoming clients. |
| 35 |
> |
* Listener for incoming TCP clients, and startup a Handler |
| 36 |
> |
* a connection is received. |
| 37 |
|
* |
| 38 |
|
* @author $Author$ |
| 39 |
|
* @version $Id$ |
| 47 |
|
*/ |
| 48 |
|
public final String REVISION = "$Revision$"; |
| 49 |
|
|
| 50 |
+ |
public static final int DEFPORT = 4510; |
| 51 |
+ |
|
| 52 |
|
//---STATIC METHODS--- |
| 53 |
|
|
| 54 |
|
//---CONSTRUCTORS--- |
| 56 |
|
/** |
| 57 |
|
* Constructs a new TCPClientListener |
| 58 |
|
* |
| 59 |
< |
* @param port The port that the server will listen on. |
| 37 |
< |
* @param clit A reference to the ClientInterfaceServant. |
| 59 |
> |
* @param packetSorter A reference to the PacketSorter |
| 60 |
|
*/ |
| 61 |
< |
public TCPClientListener(int port, ClientInterfaceServant cli) { |
| 62 |
< |
_port = port; |
| 63 |
< |
_cli = cli; |
| 61 |
> |
public TCPClientListener(PacketSorter packetSorter) { |
| 62 |
> |
// set the Thread name |
| 63 |
> |
setName("clientinterface.TCPClientListener"); |
| 64 |
> |
|
| 65 |
> |
_packetSorter = packetSorter; |
| 66 |
|
_logger.write(toString(), Logger.SYSINIT, "started"); |
| 67 |
|
} |
| 68 |
|
|
| 73 |
|
* will remain in here until such a point as something goes |
| 74 |
|
* wrong with the listening. After initially setting up the |
| 75 |
|
* ServerSocket we go round a while loop receiving connections |
| 76 |
< |
* and then passing them off to other processes to deal with. |
| 76 |
> |
* and then passing them off to handler processes to deal with. |
| 77 |
|
*/ |
| 78 |
|
public void run(){ |
| 79 |
+ |
// setup an empty ACL defaulting to ALLOW |
| 80 |
+ |
ACL acl = new ACL(ACL.ALLOW); |
| 81 |
+ |
|
| 82 |
+ |
// get our port |
| 83 |
+ |
int portNum; |
| 84 |
+ |
try { |
| 85 |
+ |
String port = ConfigurationProxy.getInstance().getProperty("ClientInterface", "ClientInterface.listenPort"); |
| 86 |
+ |
portNum = Integer.parseInt(port); |
| 87 |
+ |
} catch (PropertyNotFoundException e) { |
| 88 |
+ |
portNum = DEFPORT; |
| 89 |
+ |
_logger.write(toString(), Logger.WARNING, "Configuration not found, using default of "+portNum+" : "+e); |
| 90 |
+ |
} catch (NumberFormatException e) { |
| 91 |
+ |
portNum = DEFPORT; |
| 92 |
+ |
_logger.write(toString(), Logger.WARNING, "Bad configuration found, using default of "+portNum+" : "+e); |
| 93 |
+ |
} |
| 94 |
+ |
|
| 95 |
|
ServerSocket listenPort=null; |
| 96 |
|
// We use this boolean so we can break out of the while loop if we want |
| 97 |
|
boolean run = true; |
| 98 |
|
try{ |
| 99 |
|
// Setup the ServerSocket so that clients can connect |
| 100 |
< |
listenPort = new ServerSocket(_port); |
| 100 |
> |
listenPort = new ACLServerSocket(acl, portNum); |
| 101 |
|
} |
| 102 |
|
catch(IOException e){ |
| 103 |
|
} |
| 113 |
|
+"port "+listenPort.getLocalPort()); |
| 114 |
|
} |
| 115 |
|
// Loop round constantly until we decide to stop |
| 116 |
+ |
ConfigurationProxy cp = ConfigurationProxy.getInstance(); |
| 117 |
+ |
String stringACL = ""; |
| 118 |
+ |
String newStringACL = ""; |
| 119 |
|
while(run){ |
| 120 |
+ |
// get hold of the ACL in the configuration |
| 121 |
+ |
try { |
| 122 |
+ |
newStringACL = cp.getProperty("ClientInterface", "ClientInterface.TCPControlChannelACL"); |
| 123 |
+ |
} |
| 124 |
+ |
catch(PropertyNotFoundException e) { |
| 125 |
+ |
// if we can't find it, we'll just use a null ACL |
| 126 |
+ |
newStringACL = ""; |
| 127 |
+ |
_logger.write(toString(), Logger.WARNING, "No ACL found for ClientInterface (control channel listener), using empty ACL instead: " + e); |
| 128 |
+ |
} |
| 129 |
+ |
// check to see if the ACL has changed |
| 130 |
+ |
if(!newStringACL.equals(stringACL)) { |
| 131 |
+ |
_logger.write(toString(), Logger.SYSMSG, "Reloading Access Control List"); |
| 132 |
+ |
// clear the ACL |
| 133 |
+ |
acl.clear(); |
| 134 |
+ |
// set the default to something sane |
| 135 |
+ |
acl.setDefaultMode(ACL.ALLOW); |
| 136 |
+ |
// add the new ACL (this may change the default) |
| 137 |
+ |
acl.add(newStringACL); |
| 138 |
+ |
stringACL = newStringACL; |
| 139 |
+ |
} |
| 140 |
|
Socket hostSocket=null; |
| 141 |
|
try{ |
| 142 |
|
_logger.write(toString(), Logger.SYSMSG, "Waiting for Connection"); |
| 151 |
|
// If we've stopped on the line above we won't want to try this ! |
| 152 |
|
if(run){ |
| 153 |
|
try { |
| 154 |
< |
// Setup the HostInit so it can carry on communications with the host |
| 155 |
< |
TCPControlHandler ctl = new TCPControlHandler(hostSocket, _cli); |
| 154 |
> |
// start up a ControlHandler to chat to the new Client |
| 155 |
> |
TCPControlHandler ctl = new TCPControlHandler(hostSocket, _packetSorter); |
| 156 |
|
ctl.start(); |
| 157 |
|
} catch (IOException e) { |
| 158 |
|
_logger.write(toString(), Logger.ERROR, e.toString()); |
| 167 |
|
* Overrides the {@link java.lang.Object#toString() Object.toString()} |
| 168 |
|
* method to provide clean logging (every class should have this). |
| 169 |
|
* |
| 170 |
< |
* This uses the uk.ac.ukc.iscream.util.NameFormat class |
| 170 |
> |
* This uses the uk.org.iscream.cms.util.NameFormat class |
| 171 |
|
* to format the toString() |
| 172 |
|
* |
| 173 |
|
* @return the name of this class and its CVS revision |
| 201 |
|
* system logger that is being used. |
| 202 |
|
*/ |
| 203 |
|
private Logger _logger = ReferenceManager.getInstance().getLogger(); |
| 141 |
– |
|
| 142 |
– |
/** |
| 143 |
– |
* The port on which the server should listen. |
| 144 |
– |
*/ |
| 145 |
– |
private int _port; |
| 204 |
|
|
| 205 |
|
/** |
| 206 |
< |
* A reference to the ClientInterfaceServant. |
| 206 |
> |
* A reference to the PacketSorter. |
| 207 |
|
*/ |
| 208 |
< |
private ClientInterfaceServant _cli; |
| 209 |
< |
|
| 208 |
> |
private PacketSorter _packetSorter; |
| 209 |
> |
|
| 210 |
|
//---STATIC ATTRIBUTES--- |
| 211 |
|
|
| 212 |
|
} |
