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## org.apache.java.net
Class AuthenticatedServerSocket

    java.lang.Object
      |
      +--java.net.ServerSocket
            |
            +--org.apache.java.net.AuthenticatedServerSocket

public class AuthenticatedServerSocket
extends java.net.ServerSocket

This class implements an authenticated server socket that binds to port and listens for authenticated connections. A socket connection to be authenticated must come from an IP address contained into a address filter list and go pass the authentication handshake defined in AJPv1.1 protocol specification.

Version:
  $Revision: 1.10 $ $Date: 1999/12/13 11:08:57 $
See Also:
  `Socket`, `AuthenticatedSocket`, `MessageDigest`

Field Summary
`private int` | `challengeSize`
`private java.util.Vector` | `filterList`
`private int` | `maxConnections`
`private MessageDigest` | `md`
`private java.util.Random` | `random`
`private byte[]` | `secret`
`private long` | `seed`

Fields inherited from class java.net.ServerSocket
`factory, impl`

Constructor Summary
`AuthenticatedServerSocket(int port, int maxConnections, java.util.Vector filterList)` Construct the authenticated socket listening to the specified port but with authentication disabled.
`AuthenticatedServerSocket(int port, int maxConnections, java.util.Vector filterList, java.net.InetAddress ia)` Construct the authenticated socket listening to the specified port but with authentication disabled.
`AuthenticatedServerSocket(int port, int maxConnections, java.util.Vector filterList, MessageDigest md, byte[] secret, int challengeSize, java.net.InetAddress ia)` Construct the authenticated socket listening to the specified port.

Method Summary
`java.net.Socket` | `accept()` Blocks until a connection is made to the port.
`int` | `getChallengeSize()` Return the currently used challenge size.
`java.util.Vector` | `getFilterList()` Return the IP address filter list used by this server socket.
`int` | `getMaxConnections()` Return maximum number of connections this socket can handle.
`private boolean` | `isAuthenticated(java.net.Socket socket)` Used internally to authenticate a newly connected socket

Methods inherited from class java.net.ServerSocket
`close, getInetAddress, getLocalPort, getSoTimeout, implAccept, setSocketFactory, setSoTimeout, toString`

Methods inherited from class java.lang.Object
`, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, wait, wait, wait`

Field Detail

### secret

    private byte[] secret

### seed

    private long seed

### md

    private MessageDigest md

### random

    private java.util.Random random

### challengeSize

    private int challengeSize

### maxConnections

    private int maxConnections

### filterList

    private java.util.Vector filterList

Constructor Detail

### AuthenticatedServerSocket

    public AuthenticatedServerSocket(int port,
                                     int maxConnections,
                                     java.util.Vector filterList)
                              throws java.io.IOException

  Construct the authenticated socket listening to the specified port but with authentication disabled. This is used when IP filtering is needed, but the authentication overhead must be avoided (for example for localhost connections where only 127.0.0.1 is allowed). It will attempt to bind the socket to localhost.

### AuthenticatedServerSocket

    public AuthenticatedServerSocket(int port,
                                     int maxConnections,
                                     java.util.Vector filterList,
                                     java.net.InetAddress ia)
                              throws java.io.IOException

  Construct the authenticated socket listening to the specified port but with authentication disabled. This is used when IP filtering is needed, but the authentication overhead must be avoided (for example for localhost connections where only 127.0.0.1 is allowed). It will attempt to bind the socket to the value in ia.

### AuthenticatedServerSocket

    public AuthenticatedServerSocket(int port,
                                     int maxConnections,
                                     java.util.Vector filterList,
                                     MessageDigest md,
                                     byte[] secret,
                                     int challengeSize,
                                     java.net.InetAddress ia)
                              throws java.io.IOException

  Construct the authenticated socket listening to the specified port. It will attempt to bind the socket to the value in ia. filterList can be null if security.allowedAddresses=DISABLED

Method Detail

### accept

    public java.net.Socket accept()
                           throws AuthenticationException

  Blocks until a connection is made to the port. If the connection is authenticated is passed to the caller, otherwise an AuthenticationException is thrown.
  Throws:
    AuthenticationException - when the connection is not authenticated.
  Overrides:
    accept in class java.net.ServerSocket

### isAuthenticated

    private boolean isAuthenticated(java.net.Socket socket)

  Used internally to authenticate a newly connected socket

### getFilterList

    public java.util.Vector getFilterList()

  Return the IP address filter list used by this server socket.

### getChallengeSize

    public int getChallengeSize()

  Return the currently used challenge size.

### getMaxConnections

    public int getMaxConnections()

  Return maximum number of connections this socket can handle.

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