sunlabs.brazil.handler
Class ChownHandler

java.lang.Object
  sunlabs.brazil.handler.ChownHandler (view source)

All Implemented Interfaces:

Handler

public class ChownHandler
extends Object
implements Handler

Handler for changing the group and owner of the server. This handler expects the "server.so" file used by the Java Webserver 2.0 Make sure you rename the file libserver.so in the distribution to libcom_sun_server_ServerProcess.so, and put it where it will be found by System.loadLibrary.
Note: If the native library is unalvailable on your platform, try the RunAs handler, that includes the native source code.

Properties:

userName

name of the user to run as

groupName

The name of the group to run as

Constructor Summary

ChownHandler()

Method Summary

boolean	init(Server server, String prefix) set up the Unix user and group.
boolean	respond(Request request) Nothing to respond to

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChownHandler

public ChownHandler()

Method Detail

init

public boolean init(Server server,
                    String prefix)

set up the Unix user and group. We could return false, so our respond method would never be called, but some containers cause the server to exit on false returns.

Specified by:

init in interface Handler

Parameters:

server - The HTTP server that created this Handler. Typical Handlers will use Server.props to obtain run-time configuration information.

prefix - The handlers name. The string this Handler may prepend to all of the keys that it uses to extract configuration information from Server.props. This is set (by the Server and ChainHandler) to help avoid configuration parameter namespace collisions.

Returns:

true if this Handler initialized successfully, false otherwise. If false is returned, this Handler should not be used.

respond

public boolean respond(Request request)
                throws IOException

Nothing to respond to

Specified by:

respond in interface Handler

Parameters:

request - The Request object that represents the HTTP request.

Returns:

true if the request was handled. A request was handled if a response was supplied to the client, typically by calling Request.sendResponse() or Request.sendError.

Throws:

IOException - if there was an I/O error while sending the response to the client. Typically, in that case, the Server will (try to) send an error message to the client and then close the client's connection.

The IOException should not be used to silently ignore problems such as being unable to access some server-side resource (for example getting a FileNotFoundException due to not being able to open a file). In that case, the Handler's duty is to turn that IOException into a HTTP response indicating, in this case, that a file could not be found.