micro-profile-jwt: MicroProfile JWT QuickStart

mvn archetype:generate -DinteractiveMode=false \
    -DarchetypeGroupId=org.apache.maven.archetypes \
    -DarchetypeArtifactId=maven-archetype-webapp \
    -DgroupId=org.wildfly.quickstarts -DartifactId=microprofile-jwt \
    -Dversion=1.0.0.Alpha1-SNAPSHOT
cd microprofile-jwt

import java.security.Principal;
import jakarta.ws.rs.core.Context;
import jakarta.ws.rs.core.SecurityContext;

@GET
@Path("/helloworld")
public String helloworld(@Context SecurityContext securityContext) {
    Principal principal = securityContext.getUserPrincipal();
    String caller = principal == null ? "anonymous" : principal.getName();

    return "Hello " + caller;
}

$ mvn package wildfly:deploy

$ curl http://localhost:8080/microprofile-jwt/Sample/helloworld
Hello anonymous

$ openssl genpkey -algorithm RSA -out private.pem -pkeyopt rsa_keygen_bits:2048

$ mkdir -p src/main/resources/META-INF
$ openssl rsa -in private.pem -pubout -out src/main/resources/META-INF/public.pem

$ mkdir -p src/test/java

package org.wildfly.quickstarts.mpjwt;

import java.io.FileInputStream;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.security.KeyFactory;
import java.security.PrivateKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.util.Base64;
import java.util.UUID;

import jakarta.json.Json;
import jakarta.json.JsonArrayBuilder;
import jakarta.json.JsonObjectBuilder;

import com.nimbusds.jose.JOSEObjectType;
import com.nimbusds.jose.JWSAlgorithm;
import com.nimbusds.jose.JWSHeader;
import com.nimbusds.jose.JWSObject;
import com.nimbusds.jose.JWSSigner;
import com.nimbusds.jose.Payload;
import com.nimbusds.jose.crypto.RSASSASigner;

public class TokenUtil {

    private static PrivateKey loadPrivateKey(final String fileName) throws Exception {
        try (InputStream is = new FileInputStream(fileName)) {
            byte[] contents = new byte[4096];
            int length = is.read(contents);
            String rawKey = new String(contents, 0, length, StandardCharsets.UTF_8)
                    .replaceAll("-----BEGIN (.*)-----", "")
                    .replaceAll("-----END (.*)----", "")
                    .replaceAll("\r\n", "").replaceAll("\n", "").trim();

            PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(Base64.getDecoder().decode(rawKey));
            KeyFactory keyFactory = KeyFactory.getInstance("RSA");

            return keyFactory.generatePrivate(keySpec);
        }
    }

    public static String generateJWT(final String principal, final String birthdate, final String...groups) throws Exception {
    	PrivateKey privateKey = loadPrivateKey("private.pem");

        JWSSigner signer = new RSASSASigner(privateKey);
        JsonArrayBuilder groupsBuilder = Json.createArrayBuilder();
        for (String group : groups) { groupsBuilder.add(group); }

        long currentTime = System.currentTimeMillis() / 1000;
        JsonObjectBuilder claimsBuilder = Json.createObjectBuilder()
                .add("sub", principal)
                .add("upn", principal)
                .add("iss", "quickstart-jwt-issuer")
                .add("aud", "jwt-audience")
                .add("groups", groupsBuilder.build())
                .add("birthdate", birthdate)
                .add("jti", UUID.randomUUID().toString())
                .add("iat", currentTime)
                .add("exp", currentTime + 14400);

        JWSObject jwsObject = new JWSObject(new JWSHeader.Builder(JWSAlgorithm.RS256)
                .type(new JOSEObjectType("jwt"))
                .keyID("Test Key").build(),
                new Payload(claimsBuilder.build().toString()));

        jwsObject.sign(signer);

        return jwsObject.serialize();
    }

    public static void main(String[] args) throws Exception {
        if (args.length < 2) throw new IllegalArgumentException("Usage TokenUtil {principal} {birthdate} {groups}");
        String principal = args[0];
        String birthdate = args[1];
        String[] groups = new String[args.length - 2];
        System.arraycopy(args, 2, groups, 0, groups.length);

        String token = generateJWT(principal, birthdate, groups);
        String[] parts = token.split("\\.");
        System.out.println(String.format("\nJWT Header - %s", new String(Base64.getDecoder().decode(parts[0]), StandardCharsets.UTF_8)));
        System.out.println(String.format("\nJWT Claims - %s", new String(Base64.getDecoder().decode(parts[1]), StandardCharsets.UTF_8)));
        System.out.println(String.format("\nGenerated JWT Token \n%s\n", token));
    }
}

$ mvn package
...
$ mvn exec:java -Dexec.mainClass=org.wildfly.quickstarts.mpjwt.TokenUtil -Dexec.classpathScope=test -Dexec.args="testUser 2017-09-15 Echoer Subscriber"

JWT Header - {"kid":"Test Key","typ":"jwt","alg":"RS256"}

JWT Claims - {"sub":"testUser","upn":"testUser","iss":"quickstart-jwt-issuer","aud":"jwt-audience","groups":["Echoer","Subscriber"],"birthdate":"2017-09-15","jti":"3b89e56f-b8fd-4d5f-a1ed-080b958873f9","iat":1579886816,"exp":1579901216}

Generated JWT Token
eyJraWQiOiJUZXN0IEtleSIsInR5cCI6Imp3dCIsImFsZyI6IlJTMjU2In0.eyJzdWIiOiJ0ZXN0VXNlciIsInVwbiI6InRlc3RVc2VyIiwiaXNzIjoicXVpY2tzdGFydC1qd3QtaXNzdWVyIiwiYXVkIjoiand0LWF1ZGllbmNlIiwiZ3JvdXBzIjpbIkVjaG9lciIsIlN1YnNjcmliZXIiXSwiYmlydGhkYXRlIjoiMjAxNy0wOS0xNSIsImp0aSI6IjNiODllNTZmLWI4ZmQtNGQ1Zi1hMWVkLTA4MGI5NTg4NzNmOSIsImlhdCI6MTU3OTg4NjgxNiwiZXhwIjoxNTc5OTAxMjE2fQ.srUrA3YwWg4V42Kdf5aLQzLiBO9u7ZCJ_bbNBrgU1XFhRBVzpLq4TJheN4ZFvTKDKFHFm2pa1_a_J70EONK9y8mzKnwiIfV1LbugophBE1xp7iDsBeOwGT8IKQVLaoniGGhqny_MkiMmcWt4tRzrTlJ4TOlCGKv3mZ_RzOj6xdWb12RK7-MTZYlRdnPD8kAfRT7QaJnRbuy5vIpqdz8cVg1y2KILBtg_yJB8s2jrx0ZYgTLDUH6yLpcxk43cLszDCfmdaZAoZFjAS9xUdAuk5eo7TBqt376q0BbE5DS8bHlo3ejWcNEwyo1dPD_TlKDJtNgeae89gru5Z2NOmc2XPA

mp.jwt.verify.publickey.location=META-INF/public.pem
mp.jwt.verify.issuer=quickstart-jwt-issuer

$ mvn package wildfly:deploy

$ curl http://localhost:8080/microprofile-jwt/Sample/helloworld
Hello anonymous

$ curl -H "Authorization: Bearer eyJ...59g" http://localhost:8080/microprofile-jwt/Sample/helloworld
Hello testUser

import jakarta.annotation.security.RolesAllowed;
import jakarta.inject.Inject;

import org.eclipse.microprofile.jwt.JsonWebToken;

@Inject
JsonWebToken jwt;

@GET()
@Path("/subscription")
@RolesAllowed({"Subscriber"})
public String helloRolesAllowed(@Context SecurityContext ctx) {
    Principal caller =  ctx.getUserPrincipal();
    String name = caller == null ? "anonymous" : caller.getName();
    boolean hasJWT = jwt.getClaimNames() != null;
    String helloReply = String.format("hello + %s, hasJWT: %s", name, hasJWT);
    return helloReply;
}

<context-param>
    <param-name>resteasy.role.based.security</param-name>
    <param-value>true</param-value>
</context-param>

<security-role>
    <role-name>Subscriber</role-name>
</security-role>

$ mvn package wildfly:deploy

$ curl -H "Authorization: Bearer ey..59g" http://localhost:8080/microprofile-jwt/Sample/subscription
hello + testUser, hasJWT: true

$ curl -H "Authorization: Bearer ey..Pw" http://localhost:8080/microprofile-jwt/Sample/subscription
Access forbidden: role not allowed

import java.time.LocalDate;
import java.time.Period;
import java.util.Optional;

import org.eclipse.microprofile.jwt.Claims;
import org.eclipse.microprofile.jwt.Claim;

@Inject
@Claim(standard = Claims.birthdate)
Optional<String> birthdate;

@GET()
@Path("/birthday")
@RolesAllowed({ "Subscriber" })
public String birthday() {
    if (birthdate.isPresent()) {
        LocalDate birthdate = LocalDate.parse(this.birthdate.get().toString());
        LocalDate today = LocalDate.now();
        LocalDate next = birthdate.withYear(today.getYear());
        if (today.equals(next)) {
            return "Happy Birthday";
        }
        if (next.isBefore(today)) {
            next = next.withYear(next.getYear() + 1);
        }
        Period wait = today.until(next);
        return String.format("%d months and %d days until your next birthday.", wait.getMonths(), wait.getDays());
    }
    return "Sorry, we don't know your birthdate.";
}

$ mvn package wildfly:deploy

$ curl -H "Authorization: Bearer ey..59g" http://localhost:8080/microprofile-jwt/Sample/birthday
7 months and 19 days until your next birthday.

        <profile>
            <id>openshift</id>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.wildfly.plugins</groupId>
                        <artifactId>wildfly-maven-plugin</artifactId>
                        <configuration>
                            <feature-packs>
                                <feature-pack>
                                    <location>org.wildfly:wildfly-galleon-pack:${version.server}</location>
                                </feature-pack>
                                <feature-pack>
                                    <location>org.wildfly.cloud:wildfly-cloud-galleon-pack:${version.pack.cloud}</location>
                                </feature-pack>
                            </feature-packs>
                            <layers>...</layers>
                            <name>ROOT.war</name>
                        </configuration>
                        <executions>
                            <execution>
                                <goals>
                                    <goal>package</goal>
                                </goals>
                            </execution>
                        </executions>
                    </plugin>
                    ...
                </plugins>
            </build>
        </profile>

$ mvn verify -Pintegration-testing -Dserver.host=https://$(oc get route microprofile-jwt --template='{{ .spec.host }}')