feat(simple-jwt-jjwt): Complete the implementation with io.jsonwebtoken:jjwt-api

pom.xml

@@ -22,6 +22,7 @@
         <module>guid</module>
         <module>simple-jwt-facade</module>
         <module>simple-jwt-authzero</module>
+        <module>simple-jwt-jjwt</module>
         <module>simple-jwt-spring-boot-starter</module>
     </modules>
 
@@ -70,7 +71,9 @@
         <junit.version>5.10.0</junit.version>
         <slf4j-api.version>2.0.7</slf4j-api.version>
         <lombok.version>1.18.28</lombok.version>
+        <jackson.version>2.15.2</jackson.version>
         <auth0-jwt.version>4.4.0</auth0-jwt.version>
+        <jjwt-jwt.version>0.11.5</jjwt-jwt.version>
 
         <spring.version>x.x.x</spring.version>
         <spring-boot.version>3.1.0</spring-boot.version>
@@ -103,12 +106,44 @@
                 <version>${lombok.version}</version>
             </dependency>
 
+            <dependency>
+                <groupId>com.fasterxml.jackson.core</groupId>
+                <artifactId>jackson-databind</artifactId>
+                <version>${jackson.version}</version>
+            </dependency>
+
             <dependency>
                 <groupId>com.auth0</groupId>
                 <artifactId>java-jwt</artifactId>
                 <version>${auth0-jwt.version}</version>
             </dependency>
 
+            <dependency>
+                <groupId>io.jsonwebtoken</groupId>
+                <artifactId>jjwt-api</artifactId>
+                <version>${jjwt-jwt.version}</version>
+            </dependency>
+
+            <dependency>
+                <groupId>io.jsonwebtoken</groupId>
+                <artifactId>jjwt-impl</artifactId>
+                <version>${jjwt-jwt.version}</version>
+                <scope>runtime</scope>
+            </dependency>
+
+            <dependency>
+                <groupId>io.jsonwebtoken</groupId>
+                <artifactId>jjwt-jackson</artifactId>
+                <version>${jjwt-jwt.version}</version>
+                <scope>runtime</scope>
+                <exclusions>
+                    <exclusion>
+                        <groupId>com.fasterxml.jackson.core</groupId>
+                        <artifactId>jackson-databind</artifactId>
+                    </exclusion>
+                </exclusions>
+            </dependency>
+
             <dependency>
                 <groupId>cn.org.codecrafters</groupId>
                 <artifactId>devkit-core</artifactId>
@@ -121,6 +156,12 @@
                 <version>${project.version}</version>
             </dependency>
 
+            <dependency>
+                <groupId>cn.org.codecrafters</groupId>
+                <artifactId>devkit-utils</artifactId>
+                <version>${project.version}</version>
+            </dependency>
+
             <dependency>
                 <groupId>cn.org.codecrafters</groupId>
                 <artifactId>simple-jwt-facade</artifactId>
@@ -133,6 +174,12 @@
                 <version>${project.version}</version>
             </dependency>
 
+            <dependency>
+                <groupId>cn.org.codecrafters</groupId>
+                <artifactId>simple-jwt-jjwt</artifactId>
+                <version>${project.version}</version>
+            </dependency>
+
             <!-- Spring -->
             <dependency>
                 <groupId>org.springframework.boot</groupId>

simple-jwt-authzero/src/main/java/cn/org/codecrafters/simplejwt/authzero/AuthzeroTokenResolver.java

@@ -23,6 +23,7 @@ import cn.org.codecrafters.simplejwt.TokenPayload;
 import cn.org.codecrafters.simplejwt.TokenResolver;
 import cn.org.codecrafters.simplejwt.annotations.ExcludeFromPayload;
 import cn.org.codecrafters.simplejwt.authzero.config.AuthzeroTokenResolverConfig;
+import cn.org.codecrafters.simplejwt.config.TokenResolverConfig;
 import cn.org.codecrafters.simplejwt.constants.TokenAlgorithm;
 import com.auth0.jwt.JWT;
 import com.auth0.jwt.JWTCreator;
@@ -124,6 +125,8 @@ public class AuthzeroTokenResolver implements TokenResolver<DecodedJWT> {
      */
     private final JWTVerifier verifier;
 
+    private final AuthzeroTokenResolverConfig config = AuthzeroTokenResolverConfig.getInstance();
+
     /**
      * Creates a new instance of AuthzeroTokenResolver with the provided
      * configurations.
@@ -146,7 +149,7 @@ public class AuthzeroTokenResolver implements TokenResolver<DecodedJWT> {
         }
 
         this.jtiCreator = jtiCreator;
-        this.algorithm = AuthzeroTokenResolverConfig.getInstance()
+        this.algorithm = config
                 .getAlgorithm(algorithm)
                 .apply(secret);
         this.issuer = issuer;
@@ -172,7 +175,7 @@ public class AuthzeroTokenResolver implements TokenResolver<DecodedJWT> {
         }
 
         this.jtiCreator = (GuidCreator<UUID>) UUID::randomUUID;
-        this.algorithm = AuthzeroTokenResolverConfig.getInstance()
+        this.algorithm = config
                 .getAlgorithm(algorithm)
                 .apply(secret);
         this.issuer = issuer;
@@ -197,7 +200,7 @@ public class AuthzeroTokenResolver implements TokenResolver<DecodedJWT> {
         }
 
         this.jtiCreator = (GuidCreator<UUID>) UUID::randomUUID;
-        this.algorithm = AuthzeroTokenResolverConfig.getInstance()
+        this.algorithm = config
                 .getAlgorithm(TokenAlgorithm.HS256)
                 .apply(secret);
         this.issuer = issuer;
@@ -214,7 +217,7 @@ public class AuthzeroTokenResolver implements TokenResolver<DecodedJWT> {
         var secret = SecretCreator.createSecret(32, true, true, true);
 
         this.jtiCreator = (GuidCreator<UUID>) UUID::randomUUID;
-        this.algorithm = AuthzeroTokenResolverConfig.getInstance()
+        this.algorithm = config
                 .getAlgorithm(TokenAlgorithm.HS256)
                 .apply(secret);
         this.issuer = issuer;

simple-jwt-facade/src/main/java/cn/org/codecrafters/simplejwt/TokenResolver.java

@@ -17,6 +17,7 @@
 
 package cn.org.codecrafters.simplejwt;
 
+import java.lang.reflect.InvocationTargetException;
 import java.time.Duration;
 import java.util.Map;
 
@@ -25,7 +26,7 @@ import java.util.Map;
  * The {@code TokenResolver} interface defines methods for creating,
  * extracting, and renewing tokens, particularly JSON Web Tokens (JWTs). It
  * provides a set of methods to generate tokens with various payload
- * configurations, extract payloads from tokens, and renew expired tokens.
+ * configurations, extract payload from tokens, and renew expired tokens.
  *
  * <p>
  * <b>Token Creation:</b>
@@ -72,10 +73,10 @@ public interface TokenResolver<ResolvedTokenType> {
      * @param expireAfter the duration after which the token will expire
      * @param subject     the subject of the token
      * @param audience    the audience for which the token is intended
-     * @param payloads    the custom payload data to be included in the token
+     * @param payload     the custom payload data to be included in the token
      * @return the generated token as a {@code String}
      */
-    String createToken(Duration expireAfter, String audience, String subject, Map<String, Object> payloads);
+    String createToken(Duration expireAfter, String audience, String subject, Map<String, Object> payload);
 
     /**
      * Creates a new token with the specified expiration time, subject,
@@ -113,16 +114,6 @@ public interface TokenResolver<ResolvedTokenType> {
      */
     <T extends TokenPayload> T extract(String token, Class<T> targetType);
 
-    /**
-     * Renews the given expired token with the specified custom payload data.
-     *
-     * @param oldToken the expired token to be renewed
-     * @param payload  the custom payload data to be included in the renewed
-     *                 token
-     * @return the renewed token as a {@code String}
-     */
-    String renew(String oldToken, Map<String, Object> payload);
-
     /**
      * Renews the given expired token with the specified custom payload data.
      *
@@ -134,6 +125,16 @@ public interface TokenResolver<ResolvedTokenType> {
      */
     String renew(String oldToken, Duration expireAfter, Map<String, Object> payload);
 
+    /**
+     * Renews the given expired token with the specified custom payload data.
+     *
+     * @param oldToken the expired token to be renewed
+     * @param payload  the custom payload data to be included in the renewed
+     *                 token
+     * @return the renewed token as a {@code String}
+     */
+    String renew(String oldToken, Map<String, Object> payload);
+
     /**
      * Renews the given expired token with the specified strongly-typed
      * payload data.

simple-jwt-jjwt/pom.xml

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright (C) 2023 CodeCraftersCN.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>cn.org.codecrafters</groupId>
+        <artifactId>jdevkit</artifactId>
+        <version>1.0.0</version>
+    </parent>
+
+    <artifactId>simple-jwt-jjwt</artifactId>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>cn.org.codecrafters</groupId>
+            <artifactId>devkit-utils</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-api</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-impl</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-jackson</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.org.codecrafters</groupId>
+            <artifactId>simple-jwt-facade</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

simple-jwt-jjwt/src/main/java/cn/org/codecrafters/simplejwt/jjwt/JjwtTokenResolver.java

@@ -0,0 +1,313 @@
+/*
+ * Copyright (C) 2023 CodeCraftersCN.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.org.codecrafters.simplejwt.jjwt;
+
+import cn.org.codecrafters.devkit.utils.MapUtil;
+import cn.org.codecrafters.guid.GuidCreator;
+import cn.org.codecrafters.simplejwt.SecretCreator;
+import cn.org.codecrafters.simplejwt.TokenPayload;
+import cn.org.codecrafters.simplejwt.TokenResolver;
+import cn.org.codecrafters.simplejwt.constants.TokenAlgorithm;
+import cn.org.codecrafters.simplejwt.exceptions.WeakSecretException;
+import cn.org.codecrafters.simplejwt.jjwt.config.JjwtTokenResolverConfig;
+import io.jsonwebtoken.Claims;
+import io.jsonwebtoken.Jws;
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.SignatureAlgorithm;
+import io.jsonwebtoken.security.Keys;
+import lombok.extern.slf4j.Slf4j;
+
+import java.lang.reflect.InvocationTargetException;
+import java.nio.charset.StandardCharsets;
+import java.security.Key;
+import java.time.Duration;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.Date;
+import java.util.Map;
+import java.util.UUID;
+
+/**
+ * JjwtTokenResolver
+ *
+ * @author Zihlu Wang
+ */
+@Slf4j
+public class JjwtTokenResolver implements TokenResolver<Jws<Claims>> {
+
+    private final GuidCreator<?> jtiCreator;
+
+    private final SignatureAlgorithm algorithm;
+
+    private final String issuer;
+
+    private final Key key;
+
+    private final JjwtTokenResolverConfig config = JjwtTokenResolverConfig.getInstance();
+
+    public JjwtTokenResolver(GuidCreator<?> jtiCreator, TokenAlgorithm algorithm, String issuer, String secret) {
+        if (secret == null || secret.isBlank()) {
+            throw new IllegalArgumentException("A secret is required to build a JSON Web Token.");
+        }
+
+        if (secret.length() <= 32) {
+            log.error("""
+                    The provided secret which owns {} characters is too weak. Please replace it with a stronger one.
+                    """, secret.length());
+            throw new WeakSecretException("""
+                    The provided secret which owns %s characters is too weak. Please replace it with a stronger one.
+                    """.formatted(secret.length()));
+        }
+
+        this.jtiCreator = jtiCreator;
+        this.algorithm = config.getAlgorithm(algorithm);
+        this.issuer = issuer;
+        this.key = Keys.hmacShaKeyFor(secret.getBytes(StandardCharsets.UTF_8));
+    }
+
+    public JjwtTokenResolver(TokenAlgorithm algorithm, String issuer, String secret) {
+        if (secret == null || secret.isBlank()) {
+            throw new IllegalArgumentException("A secret is required to build a JSON Web Token.");
+        }
+
+        if (secret.length() <= 32) {
+            log.error("""
+                    The provided secret which owns {} characters is too weak. Please replace it with a stronger one.
+                    """, secret.length());
+            throw new WeakSecretException("""
+                    The provided secret which owns %s characters is too weak. Please replace it with a stronger one.
+                    """.formatted(secret.length()));
+        }
+
+        this.jtiCreator = UUID::randomUUID;
+        this.algorithm = config.getAlgorithm(algorithm);
+        this.issuer = issuer;
+        this.key = Keys.hmacShaKeyFor(secret.getBytes(StandardCharsets.UTF_8));
+    }
+
+    public JjwtTokenResolver(String issuer, String secret) {
+        if (secret == null || secret.isBlank()) {
+            throw new IllegalArgumentException("A secret is required to build a JSON Web Token.");
+        }
+
+        if (secret.length() <= 32) {
+            log.error("""
+                    The provided secret which owns {} characters is too weak. Please replace it with a stronger one.
+                    """, secret.length());
+            throw new WeakSecretException("""
+                    The provided secret which owns %s characters is too weak. Please replace it with a stronger one.
+                    """.formatted(secret.length()));
+        }
+
+        this.jtiCreator = UUID::randomUUID;
+        this.algorithm = config.getAlgorithm(TokenAlgorithm.HS256);
+        this.issuer = issuer;
+        this.key = Keys.hmacShaKeyFor(secret.getBytes(StandardCharsets.UTF_8));
+    }
+
+    public JjwtTokenResolver(String issuer) {
+        this.jtiCreator = UUID::randomUUID;
+        this.algorithm = config.getAlgorithm(TokenAlgorithm.HS256);
+        this.issuer = issuer;
+        this.key = Keys.hmacShaKeyFor(SecretCreator.createSecret(32, true, true, true).getBytes(StandardCharsets.UTF_8));
+    }
+
+    private String buildToken(Duration expireAfter, String audience, String subject, LocalDateTime now, Map<String, Object> claims) {
+        var builder = Jwts.builder()
+                .setHeaderParam("typ", "JWT")
+                .setIssuedAt(Date.from(now.atZone(ZoneId.systemDefault()).toInstant()))
+                .setNotBefore(Date.from(now.atZone(ZoneId.systemDefault()).toInstant()))
+                .setExpiration(Date.from(now.plus(expireAfter).atZone(ZoneId.systemDefault()).toInstant()))
+                .setSubject(subject)
+                .setAudience(audience)
+                .setIssuer(this.issuer)
+                .setId(jtiCreator.nextId().toString());
+
+        if (claims != null && !claims.isEmpty()) {
+            builder.setClaims(claims);
+        }
+
+        return builder.signWith(key, algorithm)
+                .compact();
+    }
+
+    /**
+     * Creates a new token with the specified expiration time, subject, and
+     * audience.
+     *
+     * @param expireAfter the duration after which the token will expire
+     * @param audience    the audience for which the token is intended
+     * @param subject     the subject of the token
+     * @return the generated token as a {@code String}
+     */
+    @Override
+    public String createToken(Duration expireAfter, String audience, String subject) {
+        var now = LocalDateTime.now();
+        return buildToken(expireAfter, audience, subject, now, null);
+    }
+
+    /**
+     * Creates a new token with the specified expiration time, subject,
+     * audience, and custom payload data.
+     *
+     * @param expireAfter the duration after which the token will expire
+     * @param audience    the audience for which the token is intended
+     * @param subject     the subject of the token
+     * @param payload     the custom payload data to be included in the token
+     * @return the generated token as a {@code String}
+     */
+    @Override
+    public String createToken(Duration expireAfter, String audience, String subject, Map<String, Object> payload) {
+        var now = LocalDateTime.now();
+        return buildToken(expireAfter, audience, subject, now, payload);
+    }
+
+    /**
+     * Creates a new token with the specified expiration time, subject,
+     * audience, and strongly-typed payload data.
+     *
+     * @param expireAfter the duration after which the token will expire
+     * @param audience    the audience for which the token is intended
+     * @param subject     the subject of the token
+     * @param payload     the strongly-typed payload data to be included in the
+     *                    token
+     * @return the generated token as a {@code String} or {@code null} if
+     * creation fails
+     * @see MapUtil#objectToMap(Object)
+     */
+    @Override
+    public <T extends TokenPayload> String createToken(Duration expireAfter, String audience, String subject, T payload) {
+        var now = LocalDateTime.now();
+        try {
+            var claims = MapUtil.objectToMap(payload);
+            return buildToken(expireAfter, audience, subject, now, claims);
+        } catch (IllegalAccessException e) {
+            log.error("An error occurs while accessing the fields of the object");
+        }
+
+        return null;
+    }
+
+    /**
+     * Resolves the given token into a ResolvedTokenType object.
+     *
+     * @param token the token to be resolved
+     * @return a ResolvedTokenType object
+     */
+    @Override
+    public Jws<Claims> resolve(String token) {
+        return Jwts.parserBuilder()
+                .setSigningKey(key)
+                .build()
+                .parseClaimsJws(token);
+    }
+
+    /**
+     * Extracts the payload information from the given token and maps it to the
+     * specified target type.
+     *
+     * @param token      the token from which to extract the payload
+     * @param targetType the target class representing the payload data type
+     * @return an instance of the specified target type with the extracted
+     * payload data, or {@code null} if extraction fails.
+     * @see MapUtil#mapToObject(Map, Class)
+     */
+    @Override
+    public <T extends TokenPayload> T extract(String token, Class<T> targetType) {
+        var resolvedToken = resolve(token);
+
+        var claims = resolvedToken.getBody();
+        try {
+            return MapUtil.mapToObject(claims, targetType);
+        } catch (InvocationTargetException e) {
+            log.info("An error occurs while invoking the constructor of type {}.", targetType.getCanonicalName());
+        } catch (NoSuchMethodException e) {
+            log.error("The constructor of the required type {} is not found.", targetType.getCanonicalName());
+        } catch (InstantiationException e) {
+            log.error("The required type {} is abstract or an interface.", targetType.getCanonicalName());
+        } catch (IllegalAccessException e) {
+            log.error("An error occurs while accessing the fields of the object.");
+        }
+
+        return null;
+    }
+
+    /**
+     * Renews the given expired token with the specified custom payload data.
+     *
+     * @param oldToken    the expired token to be renewed
+     * @param expireAfter specify when does the new token invalid
+     * @param payload     the custom payload data to be included in the renewed
+     *                    token
+     * @return the renewed token as a {@code String}
+     */
+    @Override
+    public String renew(String oldToken, Duration expireAfter, Map<String, Object> payload) {
+        var resolvedTokenClaims = resolve(oldToken).getBody();
+        var audience = resolvedTokenClaims.getAudience();
+        var subject = resolvedTokenClaims.getSubject();
+
+        return createToken(expireAfter, audience, subject, payload);
+    }
+
+    /**
+     * Renews the given expired token with the specified custom payload data.
+     *
+     * @param oldToken the expired token to be renewed
+     * @param payload  the custom payload data to be included in the renewed
+     *                 token
+     * @return the renewed token as a {@code String}
+     */
+    @Override
+    public String renew(String oldToken, Map<String, Object> payload) {
+        return renew(oldToken, Duration.ofMinutes(30), payload);
+    }
+
+    /**
+     * Renews the given expired token with the specified strongly-typed
+     * payload data.
+     *
+     * @param oldToken    the expired token to be renewed
+     * @param expireAfter specify when does the new token invalid
+     * @param payload     the strongly-typed payload data to be included in the
+     *                    renewed token
+     * @return the renewed token as a {@code String}
+     */
+    @Override
+    public <T extends TokenPayload> String renew(String oldToken, Duration expireAfter, T payload) {
+        var resolvedTokenClaims = resolve(oldToken).getBody();
+        var audience = resolvedTokenClaims.getAudience();
+        var subject = resolvedTokenClaims.getSubject();
+
+        return createToken(expireAfter, audience, subject, payload);
+    }
+
+    /**
+     * Renews the given expired token with the specified strongly-typed
+     * payload data.
+     *
+     * @param oldToken the expired token to be renewed
+     * @param payload  the strongly-typed payload data to be included in the
+     *                 renewed token
+     * @return the renewed token as a {@code String}
+     */
+    @Override
+    public <T extends TokenPayload> String renew(String oldToken, T payload) {
+        return renew(oldToken, Duration.ofMinutes(30), payload);
+    }
+}

simple-jwt-jjwt/src/main/java/cn/org/codecrafters/simplejwt/jjwt/config/JjwtTokenResolverConfig.java

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2023 CodeCraftersCN.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.org.codecrafters.simplejwt.jjwt.config;
+
+import cn.org.codecrafters.simplejwt.config.TokenResolverConfig;
+import cn.org.codecrafters.simplejwt.constants.TokenAlgorithm;
+import cn.org.codecrafters.simplejwt.exceptions.UnsupportedAlgorithmException;
+import io.jsonwebtoken.SignatureAlgorithm;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * JjwtTokenResolverConfig
+ *
+ * @author Zihlu Wang
+ */
+public final class JjwtTokenResolverConfig implements TokenResolverConfig<SignatureAlgorithm> {
+
+    private JjwtTokenResolverConfig() {}
+
+    private static final Map<TokenAlgorithm, SignatureAlgorithm> SUPPORTED_ALGORITHMS = new HashMap<>() {{
+        put(TokenAlgorithm.HS256, SignatureAlgorithm.HS256);
+        put(TokenAlgorithm.HS384, SignatureAlgorithm.HS384);
+        put(TokenAlgorithm.HS512, SignatureAlgorithm.HS512);
+    }};
+
+    private static JjwtTokenResolverConfig instance;
+
+    public static JjwtTokenResolverConfig getInstance() {
+        if (instance == null) {
+            instance = new JjwtTokenResolverConfig();
+        }
+
+        return instance;
+    }
+
+    /**
+     * Gets the algorithm function corresponding to the specified
+     * TokenAlgorithm.
+     * <p>
+     * This method returns the algorithm function associated with the given
+     * TokenAlgorithm. The provided TokenAlgorithm represents the specific
+     * algorithm for which the corresponding algorithm function is required.
+     * The returned AlgorithmFunction represents the function implementation
+     * that can be used by the TokenResolver to handle the specific algorithm.
+     *
+     * @param algorithm the TokenAlgorithm for which the algorithm function is
+     *                  required
+     * @return the algorithm function associated with the given TokenAlgorithm
+     */
+    @Override
+    public SignatureAlgorithm getAlgorithm(TokenAlgorithm algorithm) {
+        if (!SUPPORTED_ALGORITHMS.containsKey(algorithm)) {
+            throw new UnsupportedAlgorithmException("""
+                    The request algorithm is not supported by our system yet. Please change to supported ones.
+                    """);
+        }
+        return SUPPORTED_ALGORITHMS.get(algorithm);
+    }
+}

simple-jwt-spring-boot-starter/pom.xml

@@ -40,12 +40,42 @@
             <artifactId>simple-jwt-facade</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>com.auth0</groupId>
+            <artifactId>java-jwt</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
         <dependency>
             <groupId>cn.org.codecrafters</groupId>
             <artifactId>simple-jwt-authzero</artifactId>
             <scope>provided</scope>
         </dependency>
 
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-api</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-impl</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-jackson</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.org.codecrafters</groupId>
+            <artifactId>simple-jwt-jjwt</artifactId>
+            <scope>provided</scope>
+        </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-autoconfigure</artifactId>

simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/AuthzeroTokenResolverAutoConfiguration.java

@@ -34,10 +34,9 @@ import org.springframework.context.annotation.Bean;
 /**
  * <p>
  * SimpleJwtAutoConfiguration is responsible for automatically configuring the
- * Simple JWT library when used in a Spring Boot application. It provides
+ * Simple JWT library with {@code com.auth0:java-jwt} when used in a Spring
- * default settings and configurations to ensure that the library works
+ * Boot application. It provides default settings and configurations to ensure
- * smoothly without requiring manual configuration.
+ * that the library works smoothly without requiring manual configuration.
- * 
  *
  * <p>
  * This auto-configuration class sets up the necessary beans and components
@@ -45,7 +44,6 @@ import org.springframework.context.annotation.Bean;
  * configures the {@link TokenResolver} bean based on the available options and
  * properties.
  *
- *
  * <p>
  * Developers using the Simple JWT library with Spring Boot do not need to
  * explicitly configure the library, as the auto-configuration takes care of
@@ -61,7 +59,9 @@ import org.springframework.context.annotation.Bean;
 @Slf4j
 @AutoConfiguration
 @EnableConfigurationProperties(value = {SimpleJwtProperties.class})
-public class SimpleJwtAutoConfiguration {
+@ConditionalOnClass({DecodedJWT.class, AuthzeroTokenResolver.class})
+@ConditionalOnMissingBean({TokenResolver.class})
+public class AuthzeroTokenResolverAutoConfiguration {
 
     /**
      * The GuidCreator instance to be used for generating JWT IDs (JTI).
@@ -81,7 +81,7 @@ public class SimpleJwtAutoConfiguration {
      * @param simpleJwtProperties the SimpleJwtProperties instance
      */
     @Autowired
-    public SimpleJwtAutoConfiguration(SimpleJwtProperties simpleJwtProperties, GuidCreator<?> jtiCreator) {
+    public AuthzeroTokenResolverAutoConfiguration(SimpleJwtProperties simpleJwtProperties, GuidCreator<?> jtiCreator) {
         this.jtiCreator = jtiCreator;
         this.simpleJwtProperties = simpleJwtProperties;
     }
@@ -96,14 +96,14 @@ public class SimpleJwtAutoConfiguration {
      * @return the {@link TokenResolver} instance
      */
     @Bean
-    @ConditionalOnClass({DecodedJWT.class, AuthzeroTokenResolver.class})
-    @ConditionalOnMissingBean({TokenResolver.class})
     @ConditionalOnBean(value = {GuidCreator.class}, name = "jtiCreator")
     public TokenResolver<DecodedJWT> tokenResolver() {
-        return new AuthzeroTokenResolver(this.jtiCreator,
+        return new AuthzeroTokenResolver(
+                jtiCreator,
                 simpleJwtProperties.algorithm(),
                 simpleJwtProperties.issuer(),
-                simpleJwtProperties.secret());
+                simpleJwtProperties.secret()
+        );
     }
 
 }

simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/JjwtTokenResolverAutoConfiguration.java

@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2023 CodeCraftersCN.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.org.codecrafters.simplejwt.autoconfiguration;
+
+import cn.org.codecrafters.guid.GuidCreator;
+import cn.org.codecrafters.simplejwt.TokenResolver;
+import cn.org.codecrafters.simplejwt.authzero.AuthzeroTokenResolver;
+import cn.org.codecrafters.simplejwt.autoconfiguration.properties.SimpleJwtProperties;
+import cn.org.codecrafters.simplejwt.jjwt.JjwtTokenResolver;
+import io.jsonwebtoken.Claims;
+import io.jsonwebtoken.Jws;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.annotation.Bean;
+
+/**
+ * <p>
+ * JjwtTokenResolverAutoConfiguration is responsible for automatically
+ * configuring the Simple JWT library with {@code io.jsonwebtoken:jjwt-api}
+ * when used in a Spring Boot application. It provides default settings and
+ * configurations to ensure that the library works smoothly without requiring
+ * manual configuration.
+ *
+ * <p>
+ * This auto-configuration class sets up the necessary beans and components
+ * required for JWT generation and validation. It automatically creates and
+ * configures the {@link TokenResolver} bean based on the available options and
+ * properties.
+ *
+ * <p>
+ * Developers using the Simple JWT library with Spring Boot do not need to
+ * explicitly configure the library, as the auto-configuration takes care of
+ * setting up the necessary components and configurations automatically.
+ * However, developers still have the flexibility to customize the behavior of
+ * the library by providing their own configurations and properties.
+ *
+ * @author Zihlu Wang
+ * @version 1.0.0
+ * @since 1.0.0
+ */
+@Slf4j
+@AutoConfiguration
+@EnableConfigurationProperties(value = {SimpleJwtProperties.class})
+@ConditionalOnClass({Jws.class, Claims.class, JjwtTokenResolver.class})
+@ConditionalOnMissingBean({TokenResolver.class})
+public class JjwtTokenResolverAutoConfiguration {
+
+    /**
+     * The GuidCreator instance to be used for generating JWT IDs (JTI).
+     */
+    private final GuidCreator<?> jtiCreator;
+
+    /**
+     * The {@code SimpleJwtProperties} instance containing the configuration
+     * properties for Simple JWT.
+     */
+    private final SimpleJwtProperties simpleJwtProperties;
+
+    /**
+     * Constructs a new {@code SimpleJwtAutoConfiguration} instance with the
+     * provided SimpleJwtProperties.
+     *
+     * @param simpleJwtProperties the SimpleJwtProperties instance
+     */
+    @Autowired
+    public JjwtTokenResolverAutoConfiguration(SimpleJwtProperties simpleJwtProperties, GuidCreator<?> jtiCreator) {
+        this.jtiCreator = jtiCreator;
+        this.simpleJwtProperties = simpleJwtProperties;
+    }
+
+    /**
+     * Creates a new {@link TokenResolver} bean using {@link
+     * JjwtTokenResolver} if no existing {@link TokenResolver} bean is
+     * found. The {@link JjwtTokenResolver} is configured with the
+     * provided {@link GuidCreator}, {@code algorithm}, {@code issuer}, and
+     * {@code secret} properties from {@link SimpleJwtProperties}.
+     *
+     * @return the {@link TokenResolver} instance
+     */
+    @Bean
+    @ConditionalOnBean(value = {GuidCreator.class}, name = "jtiCreator")
+    public TokenResolver<Jws<Claims>> tokenResolver() {
+        return new JjwtTokenResolver(
+                jtiCreator,
+                simpleJwtProperties.algorithm(),
+                simpleJwtProperties.issuer(),
+                simpleJwtProperties.secret()
+        );
+    }
+
+}

simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/properties/SimpleJwtProperties.java

@@ -17,6 +17,8 @@
 
 package cn.org.codecrafters.simplejwt.autoconfiguration.properties;
 
+import cn.org.codecrafters.simplejwt.SecretCreator;
+import cn.org.codecrafters.simplejwt.autoconfiguration.AuthzeroTokenResolverAutoConfiguration;
 import cn.org.codecrafters.simplejwt.constants.TokenAlgorithm;
 import lombok.Data;
 import org.springframework.boot.context.properties.ConfigurationProperties;
@@ -32,7 +34,7 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
  * <p>
  * SimpleJwtProperties provides configuration options for the JWT algorithm,
  * issuer, and secret. The properties are used by the {@link
- * cn.org.codecrafters.simplejwt.autoconfiguration.SimpleJwtAutoConfiguration}
+ * AuthzeroTokenResolverAutoConfiguration}
  * class to set up the necessary configurations for JWT generation and
  * validation.
  * 
@@ -51,19 +53,23 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 public class SimpleJwtProperties {
 
     /**
-     * The algorithm used for JWT generation and validation.
+     * The algorithm used for JWT generation and validation. Default value is
+     * {@link TokenAlgorithm#HS256}
      */
-    private TokenAlgorithm algorithm;
+    private TokenAlgorithm algorithm = TokenAlgorithm.HS256;
 
     /**
-     * The issuer value to be included in the generated JWT.
+     * The issuer value to be included in the generated JWT. Default value is
+     * an empty String.
      */
-    private String issuer;
+    private String issuer = "";
 
     /**
-     * The secret key used for JWT generation and validation.
+     * The secret key used for JWT generation and validation. Default value is
+     * the result of call to {@link
+     * SecretCreator#createSecret(int, boolean, boolean, boolean)}.
      */
-    private String secret;
+    private String secret = SecretCreator.createSecret(32, true, true, true);
 
     /**
      * Returns the JWT algorithm configured in the properties.

simple-jwt-spring-boot-starter/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

@@ -1,2 +1,3 @@
 cn.org.codecrafters.simplejwt.autoconfiguration.GuidAutoConfiguration
-cn.org.codecrafters.simplejwt.autoconfiguration.SimpleJwtAutoConfiguration
+cn.org.codecrafters.simplejwt.autoconfiguration.AuthzeroTokenResolverAutoConfiguration
+cn.org.codecrafters.simplejwt.autoconfiguration.JjwtTokenResolverAutoConfiguration