jwt login

src/be/jeffcheasey88/peeratcode/webserver/User.java

@@ -0,0 +1,39 @@
+package be.jeffcheasey88.peeratcode.webserver;
+
+import org.jose4j.jwa.AlgorithmConstraints.ConstraintType;
+import org.jose4j.jwe.JsonWebEncryption;
+import org.jose4j.jwk.JsonWebKey;
+import org.jose4j.jwk.RsaJsonWebKey;
+import org.jose4j.jwk.RsaJwkGenerator;
+import org.jose4j.jws.AlgorithmIdentifiers;
+import org.jose4j.jwt.JwtClaims;
+import org.jose4j.jwt.consumer.ErrorCodes;
+import org.jose4j.jwt.consumer.InvalidJwtException;
+import org.jose4j.jwt.consumer.JwtConsumer;
+import org.jose4j.jwt.consumer.JwtConsumerBuilder;
+import org.jose4j.lang.JoseException;
+
+public class User {
+
+	private final String username;
+	
+	public User(final RsaJsonWebKey rsaJsonWebKey, final String jwt) throws InvalidJwtException {
+		    JwtConsumer jwtConsumer = new JwtConsumerBuilder()
+		            .setRequireExpirationTime()
+		            .setAllowedClockSkewInSeconds(30)
+		            .setRequireSubject()
+		            .setExpectedIssuer("Issuer")
+		            .setExpectedAudience("Audience")
+		            .setVerificationKey(rsaJsonWebKey.getKey())
+		            .setJwsAlgorithmConstraints(
+		                    ConstraintType.PERMIT, AlgorithmIdentifiers.RSA_USING_SHA256)
+		            .build();
+			
+	        JwtClaims jwtClaims = jwtConsumer.processToClaims(jwt);
+	        username = (String) jwtClaims.getClaimValue("username");
+	}
+	
+	public String getUsername() {
+		return username;
+	}
+}