diff options
Diffstat (limited to 'id.server/src/at/gv/egovernment/moa/id/auth/builder/SAMLArtifactBuilder.java')
-rw-r--r-- | id.server/src/at/gv/egovernment/moa/id/auth/builder/SAMLArtifactBuilder.java | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/id.server/src/at/gv/egovernment/moa/id/auth/builder/SAMLArtifactBuilder.java b/id.server/src/at/gv/egovernment/moa/id/auth/builder/SAMLArtifactBuilder.java new file mode 100644 index 000000000..27e19e830 --- /dev/null +++ b/id.server/src/at/gv/egovernment/moa/id/auth/builder/SAMLArtifactBuilder.java @@ -0,0 +1,60 @@ +package at.gv.egovernment.moa.id.auth.builder; + +import java.io.ByteArrayOutputStream; +import java.security.MessageDigest; + +import at.gv.egovernment.moa.id.BuildException; +import at.gv.egovernment.moa.util.Base64Utils; + +/** + * Builder for the SAML artifact, as defined in the + * Browser/Artifact profile of SAML. + * + * @author Paul Ivancsics + * @version $Id$ + */ +public class SAMLArtifactBuilder { + + /** + * Constructor for SAMLArtifactBuilder. + */ + public SAMLArtifactBuilder() { + super(); + } + + /** + * Builds the SAML artifact, encoded BASE64. + * <ul> + * <li><code>TypeCode</code>: <code>0x0001</code>.</li> + * <li><code>SourceID</code>: SHA-1 hash of the authURL</li> + * <li><code>AssertionHandle</code>: SHA-1 hash of the <code>MOASessionID</code></li> + * </ul> + * @param authURL URL auf the MOA-ID Auth component to be used for construction + * of <code>SourceID</code> + * @param sessionID <code>MOASessionID</code> to be used for construction + * of <code>AssertionHandle</code> + * @return the 42-byte SAML artifact, encoded BASE64 + */ + public String build(String authURL, String sessionID) throws BuildException { + try { + MessageDigest md = MessageDigest.getInstance("SHA-1"); + byte[] sourceID = md.digest(authURL.getBytes()); + byte[] assertionHandle = md.digest(sessionID.getBytes()); + ByteArrayOutputStream out = new ByteArrayOutputStream(42); + out.write(0); + out.write(1); + out.write(sourceID, 0, 20); + out.write(assertionHandle, 0, 20); + byte[] samlArtifact = out.toByteArray(); + String samlArtifactBase64 = Base64Utils.encode(samlArtifact); + return samlArtifactBase64; + } + catch (Throwable ex) { + throw new BuildException( + "builder.00", + new Object[] {"SAML Artifact, MOASessionID=" + sessionID, ex.toString()}, + ex); + } + } + +} |