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package jrummikub.server;
import java.net.BindException;
import java.net.InetAddress;
import org.apache.vysper.mina.TCPEndpoint;
import org.apache.vysper.storage.OpenStorageProviderRegistry;
import org.apache.vysper.xmpp.addressing.Entity;
import org.apache.vysper.xmpp.authorization.UserAuthorization;
import org.apache.vysper.xmpp.modules.extension.xep0045_muc.MUCModule;
import org.apache.vysper.xmpp.modules.extension.xep0045_muc.storage.InMemoryOccupantStorageProvider;
import org.apache.vysper.xmpp.modules.extension.xep0045_muc.storage.InMemoryRoomStorageProvider;
import org.apache.vysper.xmpp.modules.roster.persistence.MemoryRosterManager;
import org.apache.vysper.xmpp.server.XMPPServer;
/**
* Implements a simple XMPP server with a global server password
*/
public class DedicatedServer {
private volatile String serverPassword;
private String hostName;
/**
* Creates a new dedicated server with the specified password
*
* @param serverPassword
* the password
*/
public DedicatedServer(String serverPassword) {
this.serverPassword = serverPassword;
try {
InetAddress addr = InetAddress.getLocalHost();
hostName = addr.getCanonicalHostName();
} catch (Exception e) {
hostName = "localhost";
}
}
/**
* Change the current server password
*
* @param password
* the new server password
*/
public void setServerPassword(String password) {
serverPassword = password;
}
/**
* Get the current server password
*
* @return the current server password
*/
public String getServerPassword() {
return serverPassword;
}
/**
* Getter for host name
*
* @return host name
*/
public String getHostName() {
return hostName;
}
/**
* Result of server startup attempt
*/
public enum ServerStatus {
/** Server successfully started */
STARTED,
/** Server already running on this machine */
ALREADY_RUNNING,
/** Other error */
ERROR
}
/**
* Start the server
*
* @return Whether we could start the server
*/
public ServerStatus start() {
try {
XMPPServer server = new XMPPServer(hostName);
OpenStorageProviderRegistry providerRegistry = new OpenStorageProviderRegistry();
providerRegistry.add(new ServerPasswordAuthorization());
providerRegistry.add(new MemoryRosterManager());
providerRegistry.add(new InMemoryRoomStorageProvider());
providerRegistry.add(new InMemoryOccupantStorageProvider());
server.setStorageProviderRegistry(providerRegistry);
server.addEndpoint(new TCPEndpoint());
server.setTLSCertificateInfo(
getClass().getResource(
"/jrummikub/resource/bogus_mina_tls.cert")
.openStream(), "boguspw");
server.start();
MUCModule muc = new MUCModule("play");
server.addModule(muc);
return ServerStatus.STARTED;
} catch (BindException e) {
return ServerStatus.ALREADY_RUNNING;
} catch (Exception e) {
e.printStackTrace();
return ServerStatus.ERROR;
}
}
/**
* Allow authorization using a single password for all users
*/
public class ServerPasswordAuthorization implements UserAuthorization {
@Override
public boolean verifyCredentials(Entity entity, String password,
Object credentials) {
return password.equals(serverPassword);
}
@Override
public boolean verifyCredentials(String entity, String password,
Object credentials) {
return password.equals(serverPassword);
}
}
/**
* Main for a simple command line dedicated server
*
* @param args
* first argument specifies the server password, it is
* "jrummikub" when none is specified
*/
public static void main(String[] args) {
DedicatedServer server = new DedicatedServer(args.length >= 1 ? args[0]
: "jrummikub");
System.out.println("Server hostname is " + server.getHostName());
try {
switch (server.start()) {
case ALREADY_RUNNING:
System.out.println("Server already running");
// fall through
case ERROR:
System.exit(1);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
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