jwt implementation

pom.xml

@@ -39,10 +39,10 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter</artifactId>
 		</dependency>
-		<dependency> 
-			<groupId>co.elastic.logging</groupId> 
-			<artifactId>logback-ecs-encoder</artifactId> 
-			<version>1.3.2</version> 
+		<dependency>
+			<groupId>co.elastic.logging</groupId>
+			<artifactId>logback-ecs-encoder</artifactId>
+			<version>1.3.2</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
@@ -115,8 +115,7 @@
 			<version>1.5.5.Final</version>
 		</dependency>
 
-		<!--
-		https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->
+		<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-data-jpa</artifactId>
@@ -146,15 +145,15 @@
 			<artifactId>poi-ooxml</artifactId>
 			<version>5.3.0</version>
 		</dependency>
-		
+
 		<!-- https://mvnrepository.com/artifact/jakarta.ws.rs/jakarta.ws.rs-api -->
 		<dependency>
 			<groupId>jakarta.ws.rs</groupId>
 			<artifactId>jakarta.ws.rs-api</artifactId>
 			<version>3.1.0</version>
 		</dependency>
 
-		
+
 		<dependency>
 			<groupId>com.google.guava</groupId>
 			<artifactId>guava</artifactId>
@@ -192,14 +191,13 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-mail</artifactId>
 		</dependency>
-		
-	<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-redis -->
+
+		<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-redis -->
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-data-redis</artifactId>
 		</dependency>
-		<!--
-		https://mvnrepository.com/artifact/org.springframework.session/spring-session-data-redis -->
+		<!-- https://mvnrepository.com/artifact/org.springframework.session/spring-session-data-redis -->
 		<dependency>
 			<groupId>org.springframework.session</groupId>
 			<artifactId>spring-session-data-redis</artifactId>
@@ -219,8 +217,7 @@
 			<artifactId>jackson-datatype-joda</artifactId>
 			<version>2.17.0</version>
 		</dependency>
-		<!--
-		https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
+		<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
 			<artifactId>jackson-databind</artifactId>
@@ -232,9 +229,30 @@
 			<artifactId>jackson-core</artifactId>
 			<version>2.17.0-rc1</version>
 		</dependency>
+		<!-- https://mvnrepository.com/artifact/io.jsonwebtoken/jjwt-api -->
+		<dependency>
+			<groupId>io.jsonwebtoken</groupId>
+			<artifactId>jjwt-api</artifactId>
+			<version>0.12.6</version>
+		</dependency>
+		<!-- https://mvnrepository.com/artifact/io.jsonwebtoken/jjwt-impl -->
+		<dependency>
+			<groupId>io.jsonwebtoken</groupId>
+			<artifactId>jjwt-impl</artifactId>
+			<version>0.12.6</version>
+			<scope>runtime</scope>
+		</dependency>
+		<!-- https://mvnrepository.com/artifact/io.jsonwebtoken/jjwt-jackson -->
+		<dependency>
+			<groupId>io.jsonwebtoken</groupId>
+			<artifactId>jjwt-jackson</artifactId>
+			<version>0.12.6</version>
+			<scope>runtime</scope>
+		</dependency>
+
 
 	</dependencies>
-	
+
 	<build>
 		<finalName>104api-v3.0.0</finalName>
 		<plugins>
@@ -318,8 +336,8 @@
 								<echo>concatenating properties file
 									${target-properties} and
 									${source-properties}</echo>
-								<concat destfile="${target-properties}"
-									append="yes" force="yes">
+								<concat destfile="${target-properties}" append="yes"
+									force="yes">
 									<fileset file="${source-properties}" />
 								</concat>
 							</target>

src/main/environment/104_ci.properties

@@ -18,4 +18,5 @@ [email protected]_API_BASE_URL@
 spring.redis.host=localhost
 
 #ELK logging file name
-logging.file.name=@env.HELPLINE104_API_LOGGING_FILE_NAME@
+logging.file.name=@env.HELPLINE104_API_LOGGING_FILE_NAME@
+jwt.secret=@env.JWT_SECRET_KEY@

src/main/environment/104_dev.properties

@@ -17,4 +17,4 @@ common-url=<Enter your socket address here>/commonapi-v1.0
 
 ### Redis IP
 spring.redis.host=localhost
-
+jwt.secret=

src/main/environment/104_example.properties

@@ -16,4 +16,4 @@ common-url=http://localhost:8080/commonapi-v1.0
 
 ### Redis IP
 spring.redis.host=localhost
-
+jwt.secret=

src/main/environment/104_test.properties

@@ -17,7 +17,7 @@ common-url=<Enter your socket address here>/commonapi-v1.0
 
 ### Redis IP
 spring.redis.host=localhost
-
+jwt.secret=
 
 
 

src/main/environment/104_uat.properties

@@ -16,4 +16,4 @@ common-url=<Enter your socket address here>/commonapi-v1.0
 
 ### Redis IP
 spring.redis.host=localhost
-
+jwt.secret=

src/main/java/com/iemr/helpline104/repository/users/IEMRUserRepositoryCustom.java

@@ -59,4 +59,6 @@ public interface IEMRUserRepositoryCustom extends CrudRepository<M_User, Long> {
 	@Query("UPDATE M_User u set u.StatusID = 2 where u.UserID = :userId")
 	int updateSetUserStatusActive(@Param("userId") Long userId);
 
+	M_User findByUserID(Long UserID);
+
 }

src/main/java/com/iemr/helpline104/utils/CookieUtil.java

@@ -0,0 +1,31 @@
+package com.iemr.helpline104.utils;
+
+import java.util.Arrays;
+import java.util.Optional;
+
+import org.springframework.stereotype.Service;
+
+import jakarta.servlet.http.Cookie;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+@Service
+public class CookieUtil {
+
+	public Optional<String> getCookieValue(HttpServletRequest request, String cookieName) {
+		Cookie[] cookies = request.getCookies();
+		if (cookies != null) {
+			for (Cookie cookie : cookies) {
+				if (cookieName.equals(cookie.getName())) {
+					return Optional.of(cookie.getValue());
+				}
+			}
+		}
+		return Optional.empty();
+	}
+
+	public String getJwtTokenFromCookie(HttpServletRequest request) {
+		return Arrays.stream(request.getCookies()).filter(cookie -> "Jwttoken".equals(cookie.getName()))
+				.map(Cookie::getValue).findFirst().orElse(null);
+	}
+}

src/main/java/com/iemr/helpline104/utils/FilterConfig.java

@@ -0,0 +1,19 @@
+package com.iemr.helpline104.utils;
+
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+
+@Configuration
+public class FilterConfig {
+
+	@Bean
+    public FilterRegistrationBean<JwtUserIdValidationFilter> jwtUserIdValidationFilter(JwtAuthenticationUtil jwtAuthenticationUtil) {
+        FilterRegistrationBean<JwtUserIdValidationFilter> registrationBean = new FilterRegistrationBean<>();
+        registrationBean.setFilter(new JwtUserIdValidationFilter(jwtAuthenticationUtil));
+        registrationBean.addUrlPatterns("/*");  // Apply filter to all API endpoints
+        return registrationBean;
+    }
+
+}

src/main/java/com/iemr/helpline104/utils/JwtAuthenticationUtil.java

@@ -0,0 +1,85 @@
+package com.iemr.helpline104.utils;
+
+import java.util.Optional;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Component;
+
+import com.iemr.helpline104.data.users.M_User;
+import com.iemr.helpline104.repository.users.IEMRUserRepositoryCustom;
+import com.iemr.helpline104.utils.exception.IEMRException;
+
+import io.jsonwebtoken.Claims;
+import jakarta.servlet.http.HttpServletRequest;
+
+@Component
+public class JwtAuthenticationUtil {
+
+	@Autowired
+	private CookieUtil cookieUtil;
+	@Autowired
+	private JwtUtil jwtUtil;
+	@Autowired
+	private IEMRUserRepositoryCustom iEMRUserRepositoryCustom;
+	private final Logger logger = LoggerFactory.getLogger(this.getClass().getName());
+
+	public JwtAuthenticationUtil(CookieUtil cookieUtil, JwtUtil jwtUtil) {
+		this.cookieUtil = cookieUtil;
+		this.jwtUtil = jwtUtil;
+	}
+
+	public ResponseEntity<String> validateJwtToken(HttpServletRequest request) {
+		Optional<String> jwtTokenOpt = cookieUtil.getCookieValue(request, "Jwttoken");
+
+		if (jwtTokenOpt.isEmpty()) {
+			return ResponseEntity.status(HttpStatus.UNAUTHORIZED)
+					.body("Error 401: Unauthorized - JWT Token is not set!");
+		}
+
+		String jwtToken = jwtTokenOpt.get();
+
+		// Validate the token
+		Claims claims = jwtUtil.validateToken(jwtToken);
+		if (claims == null) {
+			return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body("Error 401: Unauthorized - Invalid JWT Token!");
+		}
+
+		// Extract username from token
+		String usernameFromToken = claims.getSubject();
+		if (usernameFromToken == null || usernameFromToken.isEmpty()) {
+			return ResponseEntity.status(HttpStatus.UNAUTHORIZED)
+					.body("Error 401: Unauthorized - Username is missing!");
+		}
+
+		// Return the username if valid
+		return ResponseEntity.ok(usernameFromToken);
+	}
+
+	public boolean validateUserIdAndJwtToken(String jwtToken) throws IEMRException {
+		try {
+			// Validate JWT token and extract claims
+			Claims claims = jwtUtil.validateToken(jwtToken);
+
+			if (claims == null) {
+				throw new IEMRException("Invalid JWT token.");
+			}
+
+			String userId = claims.get("userId", String.class);
+
+			// Fetch user based on userId from the database or cache
+			M_User user = iEMRUserRepositoryCustom.findByUserID(Long.parseLong(userId));
+			if (user == null) {
+				throw new IEMRException("Invalid User ID.");
+			}
+
+			return true; // Valid userId and JWT token
+		} catch (Exception e) {
+			logger.error("Validation failed: " + e.getMessage(), e);
+			throw new IEMRException("Validation error: " + e.getMessage(), e);
+		}
+	}
+}