OpenSAML user discussion

[Tom Scavo <>]

Hi Walter,

I rewrote methods recoverAssertion and generateArtifact from
BaseArtifactMapper (with minimal invasion) to show you what it would
be like using the SAMLArtifact classes.  Btw, all of this has been
implemented and tested except the parse method (which is tricky).

In addition to SAMLArtifactType01, I have also implemented
SAMLArtifactType02, LibertyArtifactType03, and SAMLArtifactType04,
which show that SAMLArtifact may be easily extended in various
directions.  All of these classes implement an interface called
Artifact.

Hope this helps,
Tom

import org.opensaml.SAMLArtifact;
import org.opensaml.SAMLArtifactType01;

        public ArtifactMapping recoverAssertion(String encodedArtifact) {

                try {
                        //Decode the artifact
                        SAMLArtifact artifact = 
SAMLArtifact.parse(encodedArtifact);
                        if 
(artifact.getTypeCode().equals(SAMLArtifactType01.TYPE_CODE)) {

                                //Grab the assertion handle
                                byte[] assertionHandle = ((SAMLArtifactType01)
artifact).getAssertionHandle();
                                String stringHandle = new 
String(assertionHandle);

                                //delegate recovery to extenders
                                return recoverAssertionImpl(stringHandle);
                                
                        } else {
                                log.error("Incorrect artifact type code.");
                                return null;
                        }

                } catch (Exception e) {
                        log.error("Unable to parse artifact.");
                        return null;
                }
        }

        public String generateArtifact(SAMLAssertion assertion,
HSRelyingParty relyingParty) {

                // Add SourceID
                byte[] sourceID = new byte[20];
                synchronized (md) {
                        sourceID = 
md.digest(relyingParty.getIdentityProvider().getProviderId().getBytes());
                }

                // create a type 0x0001 artifact:
                SAMLArtifactType01 artifact;
                try {
                        artifact = new SAMLArtifactType01(sourceID);
                } catch (Exception e) {
                        log.error("Unable to create artifact.");
                        return null;
                }

                // Cache the assertion handle
                String assertionHandle = new 
String(artifact.getAssertionHandle());

                // Delegate adding to extenders
                addAssertionImpl(assertionHandle, new
ArtifactMapping(assertionHandle, assertion, relyingParty));

                // Return the encoded artifact
                return artifact.encode();
        }



On Thu, 13 Jan 2005 12:22:53 -0600, Walter Hoehn 
<>
 wrote:
> http://anoncvs.internet2.edu/cgi-bin/viewcvs.cgi/shibboleth/java/src/
> edu/internet2/middleware/shibboleth/artifact/provider/
> BaseArtifactMapper.java?rev=1.1&content-type=text/vnd.viewcvs-markup