you can extract all the security info by looking at the Vector stored as
a property in the MessageContext:
Vector resultHandlers =
(Vector)MessageContext.getCurrentContext().getProperty(WSHandlerConstants.RECV_RESULTS);
this vector contains, as far as i can tell, everything you could want to
know.
or you can extract the username from the message itself -
ArrayList actorList = new ArrayList();
actorList.add("actor value for my UsernameToken entry");
Message request = MessageContext.getCurrentContext().getRequestMessage();
SOAPEnvelope envelope = (SOAPEnvelope)request.getSOAPEnvelope();
Vector headers = envelope.getHeadersByActor(actorList);
SOAPHeaderElement header = (SOAPHeaderElement)headers.get(0);
you can then extract the actual username by walking the DOM tree to the
node which contains the username
MessageElement usernameTokenElement =
header.getChildElement(USERNAME_TOKEN_QNAME);
MessageElement usernameElement =
usernameTokenElement.getChildElement(USERNAME_QNAME);
String username = usernameElement.getValue();
(you'll also need these)
static final QName USERNAME_TOKEN_QNAME = new QName(WSConstants.WSSE_NS,
WSConstants.USERNAME_TOKEN_LN);
static final QName USERNAME_QNAME = new QName(WSConstants.WSSE_NS,
WSConstants.USERNAME_LN);
in my app i have a handler which i put in the request chain right after
the WSDoAllReceiver which extracts the username using the above code,
does an LDAP lookup of the user to gather roles, and then creates an
app-specific user object which it stores it as a properly in the
MessageContext where anyone in the handling chain can then extract it
via getProperty().
hth.
......................ron.
Michael Rudolf wrote:
Thanks a lot for the detailed description! I think this will work fine
for me. One more question about this though: Can i read the username
inside the web service? Or is there any way of getting information
like the group a user belongs to inside the web service to read it
there? It sounds like the Service does get any of this info since the
authentication is completely transparent to the service itself.
Thanks.
Michael
by "Web Services are made out of Session EJBs" you mean you have
Session EJBs that expose a SOAP-over-HTTP interface? WSS4J uses 2
handlers, one client-side and one server-side (WSDoAllSender (client)
and WSDoAllReceiver (server)) which plug into the handler chain
supported by Axis to "intercept" the request on its way to the
server. WSDoAllSender adds a WSSecurity header to the SOAP message
on send (configured using a properties file). WSDoAllReceiver then
processes the incoming message, validates whatever it's configured to
validate and then passes the request on to your handlers/service (or
rejects the message if it does not validate properly). to add
UsernameTokens to a request and process them on the server requires a
CallbackHandler on the client side which can provide the password for
a user. this is then processed into a UsernameToken, included in the
SOAP header, and on the server side you'll need another
CallbackHandler which can provide the password for the user (pulled
from LDAP) which WSS4J will compare to what's provided in the
UsernameToken and thus authenicate the message before your service
(however it's implemented) ever gets called. it's quite transparent
for the most part. it also inserts a few entries in the
MessageContext so you can later determine what kind of authenication
has been done.
hth.
.......................ron.
Michael Rudolf wrote:
Is there any difference in case the Web Services are made out of
Session EJBs? Or does WSS4J work the same way in that case?
Thanks!
Michael
you may want to look at WSS4J and UsernameTokens. they're pretty
straight-forward as long as your client can support them. they are
part of
the WS-Security standard if you want to stick with "endorsed"
authentication
mechanisms. then on the server-side you'll typically need a JNDI
interface to
your LDAP server to authenticate the user on that side.
hth.
................ron.
Hi,
is there any tutorial or example for authenticating users of we
services
by username and pass over HTTPS? Can anybody explain in more
detail how
this works? Is there any alternative to it? I want to query axis web
sercvices from a portal. That uses LDAP for authetication. I would
like
to use the same directory for authenticating the users at the web
services that are being queried.
Thanks for any help!
Michael
