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NasruddinNasruddin
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Added security for local running applications
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13 files changed

+554
-17
lines changed

13 files changed

+554
-17
lines changed

‎.idea/workspace.xml‎

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‎docker/docker-compose-infra.yml‎

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@@ -30,6 +30,19 @@ services:
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- ./postgresql/init.sql:/docker-entrypoint-initdb.d/init.sql
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networks:
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- shared-network
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keycloak:
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image: quay.io/keycloak/keycloak:latest
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container_name: keycloak
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ports:
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- "8081:8080"
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environment:
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KEYCLOAK_ADMIN: admin
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KEYCLOAK_ADMIN_PASSWORD: admin
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command: [ "start-dev" ]
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networks:
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- shared-network
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networks:
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shared-network:
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name: shared-network

‎microservices/course-composite-service/pom.xml‎

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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-webflux</artifactId>
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</dependency>
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<!--Security related dependency-->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-security</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-oauth2-resource-server</artifactId>
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</dependency>
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<dependency>
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<groupId>io.javatab.util</groupId>
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<artifactId>util</artifactId>

‎microservices/course-composite-service/src/main/java/io/javatab/microservices/composite/course/config/ResourceController.java‎

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package io.javatab.microservices.composite.course.config;
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import org.springframework.security.access.prepost.PreAuthorize;
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import org.springframework.security.core.Authentication;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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@RequestMapping("/protectedapi")
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public class ResourceController {
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@GetMapping("/public")
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public String publicResource() {
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return "This is a public resource. No authentication required.";
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}
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@GetMapping("/user")
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//@PreAuthorize("hasRole('USER')")
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public String userResource(Authentication authentication) {
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return "Hello, " + authentication.getName() + "! You have USER access.";
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}
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@GetMapping("/admin")
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//@PreAuthorize("hasRole('ADMIN')")
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public String adminResource(Authentication authentication) {
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return "Hello, " + authentication.getName() + "! You have ADMIN access.";
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}
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}

‎microservices/course-composite-service/src/main/java/io/javatab/microservices/composite/course/config/SecurityConfig.java‎

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package io.javatab.microservices.composite.course.config;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.core.convert.converter.Converter;
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import org.springframework.security.config.Customizer;
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import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
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import org.springframework.security.config.web.server.SecurityWebFiltersOrder;
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import org.springframework.security.config.web.server.ServerHttpSecurity;
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import org.springframework.security.core.GrantedAuthority;
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import org.springframework.security.core.authority.SimpleGrantedAuthority;
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import org.springframework.security.oauth2.jwt.Jwt;
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import org.springframework.security.oauth2.jwt.NimbusReactiveJwtDecoder;
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import org.springframework.security.oauth2.jwt.ReactiveJwtDecoder;
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import org.springframework.security.oauth2.server.resource.authentication.JwtAuthenticationToken;
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import org.springframework.security.web.server.SecurityWebFilterChain;
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import org.springframework.web.server.ServerWebExchange;
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import reactor.core.publisher.Mono;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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import java.util.Map;
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@Configuration
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@EnableWebFluxSecurity
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public class SecurityConfig {
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private static final Logger logger = LoggerFactory.getLogger(SecurityConfig.class);
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@Bean
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public SecurityWebFilterChain securityFilterChain(ServerHttpSecurity http) {
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http
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.authorizeExchange(exchanges -> exchanges
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.pathMatchers("/api/course-aggregate").hasRole("COURSE-AGGREGATE-READ")
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.anyExchange().authenticated()
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)
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.oauth2ResourceServer(oauth2 -> oauth2
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.jwt(jwt -> jwt.jwtAuthenticationConverter(grantedAuthoritiesExtractor()))
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);
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// Add filter to log roles
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http.addFilterAt((exchange, chain) -> logRoles(exchange).then(chain.filter(exchange)),
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SecurityWebFiltersOrder.AUTHORIZATION);
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return http.build();
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}
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@Bean
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public ReactiveJwtDecoder jwtDecoder() {
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return NimbusReactiveJwtDecoder.withJwkSetUri("http://localhost:8081/realms/course-management-realm/protocol/openid-connect/certs").build();
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}
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@Bean
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public Converter<Jwt, Mono<JwtAuthenticationToken>> grantedAuthoritiesExtractor() {
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return new Converter<Jwt, Mono<JwtAuthenticationToken>>() {
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@Override
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public Mono<JwtAuthenticationToken> convert(Jwt jwt) {
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Collection<GrantedAuthority> authorities = new ArrayList<>();
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// Extract realm roles
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Map<String, Object> realmAccess = jwt.getClaim("realm_access");
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if (realmAccess != null && realmAccess.containsKey("roles")) {
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List<String> roles = (List<String>) realmAccess.get("roles");
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authorities.addAll(roles.stream()
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.map(role -> new SimpleGrantedAuthority("ROLE_" + role.toUpperCase()))
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.toList());
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}
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// Extract client roles (replace "my-resource-server" with your client ID)
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/*Map<String, Object> resourceAccess = jwt.getClaim("resource_access");
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if (resourceAccess != null) {
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Map<String, Object> clientRoles = (Map<String, Object>) resourceAccess.get("my-resource-server");
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if (clientRoles != null && clientRoles.containsKey("roles")) {
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List<String> roles = (List<String>) clientRoles.get("roles");
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authorities.addAll(roles.stream()
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.map(role -> new SimpleGrantedAuthority("ROLE_" + role.toUpperCase()))
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.toList());
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}
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}*/
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Map<String, Object> resourceAccess = jwt.getClaim("resource_access");
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if (resourceAccess != null) {
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resourceAccess.forEach((resource, access) -> {
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if (access instanceof Map) {
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Map<String, Object> clientRoles = (Map<String, Object>) access;
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if (clientRoles.containsKey("roles")) {
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List<String> roles = (List<String>) clientRoles.get("roles");
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authorities.addAll(roles.stream()
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.map(role -> new SimpleGrantedAuthority("ROLE_" + role.toUpperCase()))
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.toList());
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}
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}
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});
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}
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return Mono.just(new JwtAuthenticationToken(jwt, authorities));
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}
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};
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}
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private Mono<Void> logRoles(ServerWebExchange exchange) {
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return exchange.getPrincipal()
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.cast(JwtAuthenticationToken.class)
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.doOnNext(jwtAuth -> {
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Collection<? extends GrantedAuthority> authorities = jwtAuth.getAuthorities();
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logger.info("Roles in Resource Server: {}", authorities);
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})
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.then();
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}
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}

‎microservices/course-composite-service/src/main/resources/application.yml‎

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level:
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root: INFO
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io.javatab.microservices.composite.course: DEBUG
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# Security related properties
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security:
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oauth2:
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resourceserver:
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jwt:
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issuer-uri: http://localhost:8081/realms/course-management-realm
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jwk-set-uri: http://localhost:8081/realms/course-management-realm/protocol/openid-connect/certs
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---
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spring:
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config:

‎microservices/course-service/pom.xml‎

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<artifactId>spring-boot-starter-validation</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-security</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-oauth2-resource-server</artifactId>
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</dependency>
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<dependency>
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<groupId>io.javatab.util</groupId>

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