build.gradle

@@ -23,6 +23,7 @@ repositories {
 
 dependencies {
 	implementation group: 'org.springdoc', name: 'springdoc-openapi-starter-webmvc-ui', version: '2.8.5'
+	implementation group: 'org.springframework.boot', name:'spring-boot-starter-oauth2-client', version: '3.5.5'
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
 	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'

docker-compose.yaml

@@ -7,6 +7,8 @@ services:
       - CLOUDFLARE_API_KEY=${CLOUDFLARE_API_KEY}
       - CLOUDFLARE_EMAIL=${CLOUDFLARE_EMAIL}
       - ENV=${ENV}
+      - OAUTH_CLIENT_ID=${OAUTH_CLIENT_ID}
+      - OAUTH_CLIENT_SECRET=${OAUTH_CLIENT_SECRET}
     ports:
       - 5002:8080
     restart: unless-stopped

src/main/java/com/hithomelabs/CFTunnels/Config/AuthoritiesToGroupMapping.java

@@ -0,0 +1,28 @@
+package com.hithomelabs.CFTunnels.Config;
+
+import com.hithomelabs.CFTunnels.Models.Authorities;
+import com.hithomelabs.CFTunnels.Models.Groups;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+@Configuration
+public class AuthoritiesToGroupMapping {
+
+    public Map<String, Set<GrantedAuthority>> getAuthorityForGroup(){
+        HashMap<String, Set<GrantedAuthority>> mappings = new HashMap<>();
+        mappings.put(Groups.GITEA_USER, new HashSet<>(Set.of(new SimpleGrantedAuthority(Authorities.ROLE_USER))));
+        mappings.put(Groups.POWER_USER, new HashSet<>(Set.of(new SimpleGrantedAuthority(Authorities.ROLE_USER))));
+        mappings.put(Groups.HOMELAB_DEVELOPER, new HashSet<>(Set.of(new SimpleGrantedAuthority(Authorities.ROLE_DEVELOPER))));
+        mappings.put(Groups.SYSTEM_ADMIN, new HashSet<>(Set.of(new SimpleGrantedAuthority(Authorities.ROLE_APPROVER), new SimpleGrantedAuthority(Authorities.ROLE_ADMIN))));
+        return mappings;
+    }
+
+
+
+}

src/main/java/com/hithomelabs/CFTunnels/Config/CustomOidcUserConfiguration.java

@@ -0,0 +1,45 @@
+package com.hithomelabs.CFTunnels.Config;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.oauth2.client.oidc.userinfo.OidcUserRequest;
+import org.springframework.security.oauth2.client.oidc.userinfo.OidcUserService;
+import org.springframework.security.oauth2.core.oidc.user.DefaultOidcUser;
+import org.springframework.security.oauth2.core.oidc.user.OidcUser;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+@Configuration
+public class CustomOidcUserConfiguration extends OidcUserService {
+
+        @Autowired
+        AuthoritiesToGroupMapping authoritiesToGroupMapping;
+
+        @Override
+        public OidcUser loadUser(OidcUserRequest userRequest) {
+            // * * Delegate to the default implementation for loading user and claims
+            OidcUser oidcUser = super.loadUser(userRequest);
+
+            // * * Copy existing authorities (e.g. scopes → authorities)
+            Set<GrantedAuthority> mappedAuthorities = new HashSet<>();
+
+            // * * Extract your custom claim (change "roles" to your claim name)
+            List<String> groups = oidcUser.getClaimAsStringList("groups");
+            if (groups != null) {
+                groups.forEach(group ->
+                        mappedAuthorities.addAll(authoritiesToGroupMapping.getAuthorityForGroup().get(group))
+                );
+            }
+
+            // * * Return a new DefaultOidcUser with merged authorities
+            return new DefaultOidcUser(
+                    mappedAuthorities,
+                    oidcUser.getIdToken(),
+                    oidcUser.getUserInfo()
+            );
+        }
+    }
+

src/main/java/com/hithomelabs/CFTunnels/Config/Security/SecuirtyConfig.java

@@ -0,0 +1,39 @@
+package com.hithomelabs.CFTunnels.Config.Security;
+
+import com.hithomelabs.CFTunnels.Config.CustomOidcUserConfiguration;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.annotation.web.configurers.oauth2.client.OAuth2LoginConfigurer;
+import org.springframework.security.web.SecurityFilterChain;
+
+
+@Configuration
+@EnableWebSecurity
+@EnableMethodSecurity(
+        prePostEnabled = true,
+        securedEnabled   = true,
+        jsr250Enabled    = true
+)
+public class SecuirtyConfig {
+
+    @Autowired
+    private CustomOidcUserConfiguration customOidcUserConfiguration;
+
+    @Bean
+    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+        http
+                .authorizeHttpRequests(auth -> auth
+                        .anyRequest().authenticated()
+                )
+                .with(new OAuth2LoginConfigurer<>(), oauth2 -> oauth2.userInfoEndpoint(u -> u.oidcUserService(customOidcUserConfiguration)));
+
+
+        return http.build();
+    }
+
+}

src/main/java/com/hithomelabs/CFTunnels/Controllers/TunnelController.java

@@ -1,8 +1,7 @@
 package com.hithomelabs.CFTunnels.Controllers;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.ObjectMapper;
+import com.hithomelabs.CFTunnels.Config.AuthoritiesToGroupMapping;
-import com.fasterxml.jackson.databind.SerializationFeature;
 import com.hithomelabs.CFTunnels.Config.CloudflareConfig;
 import com.hithomelabs.CFTunnels.Config.RestTemplateConfig;
 import com.hithomelabs.CFTunnels.Headers.AuthKeyEmailHeader;
@@ -11,7 +10,10 @@ import com.hithomelabs.CFTunnels.Models.Ingress;
 import com.hithomelabs.CFTunnels.Models.TunnelResponse;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.*;
-import org.springframework.http.converter.HttpMessageConverter;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.annotation.AuthenticationPrincipal;
+import org.springframework.security.oauth2.core.oidc.user.OidcUser;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.client.RestTemplate;
 
@@ -25,6 +27,8 @@ public class TunnelController {
 
     private final RestTemplate restTemplate = new RestTemplate();
 
+    @Autowired
+    private AuthoritiesToGroupMapping authoritiesToGroupMapping;
     @Autowired
     private CloudflareConfig cloudflareConfig;
 
@@ -34,6 +38,20 @@ public class TunnelController {
     @Autowired
     private RestTemplateConfig restTemplateConfig;
 
+    @PreAuthorize("hasAnyRole('USER')")
+    @GetMapping("/whoami")
+    public Map<String,Object> whoAmI(@AuthenticationPrincipal OidcUser oidcUser) {
+
+        List<String> authorities = oidcUser.getAuthorities().stream()
+                .map(GrantedAuthority::getAuthority)
+                .toList();
+        return Map.of(
+                "username", oidcUser.getPreferredUsername(),
+                "roles", authorities
+        );
+    }
+
+    @PreAuthorize("hasAnyRole('USER')")
     @GetMapping("/tunnels")
     public ResponseEntity<Map<String,Object>> getTunnels(){
 
@@ -50,6 +68,7 @@ public class TunnelController {
         return ResponseEntity.ok(jsonResponse);
     }
 
+    @PreAuthorize("hasAnyRole('DEVELOPER')")
     @GetMapping("/tunnel/{tunnelId}")
     public ResponseEntity<Map<String,Object>> getTunnelConfigurations(@PathVariable String tunnelId) throws JsonProcessingException {
 
@@ -67,6 +86,7 @@ public class TunnelController {
     }
 
 // 50df9101-f625-4618-b7c5-100338a57124
+    @PreAuthorize("hasAnyRole('ADMIN')")
     @PutMapping("/tunnel/{tunnelId}/add")
     public ResponseEntity<Map<String, Object>> addTunnelconfiguration(@PathVariable String tunnelId, @RequestBody Ingress ingress) throws JsonProcessingException {
 
@@ -95,6 +115,7 @@ public class TunnelController {
         return ResponseEntity.ok(jsonResponse);
     }
 
+    @PreAuthorize("hasAnyRole('DEVELOPER')")
     @PutMapping("/tunnel/{tunnelId}/delete")
     public ResponseEntity<Map<String, Object>> deleteTunnelConfiguration(@PathVariable String tunnelId, @RequestBody Ingress ingress) throws JsonProcessingException {
 

src/main/java/com/hithomelabs/CFTunnels/Models/Authorities.java

@@ -0,0 +1,10 @@
+package com.hithomelabs.CFTunnels.Models;
+
+public class Authorities {
+
+    public static final String ROLE_ADMIN = "ROLE_ADMIN";
+    public static final String ROLE_DEVELOPER = "ROLE_DEVELOPER";
+    public static final String ROLE_USER = "ROLE_USER";
+    public static final String ROLE_APPROVER = "ROLE_APPROVER";
+
+}

src/main/java/com/hithomelabs/CFTunnels/Models/Groups.java

@@ -0,0 +1,10 @@
+package com.hithomelabs.CFTunnels.Models;
+
+public class Groups {
+
+    public static final String HOMELAB_DEVELOPER = "homelab developer";
+    public static final String SYSTEM_ADMIN = "authentik Admins";
+    public static final String POWER_USER = "arr premium";
+    public static final String GITEA_USER = "gitrestricted";
+
+}

src/main/resources/application.properties

@@ -3,3 +3,15 @@ cloudflare.accountId=${CLOUDFLARE_ACCOUNT_ID}
 cloudflare.apiKey=${CLOUDFLARE_API_KEY}
 cloudflare.email=${CLOUDFLARE_EMAIL}
 spring.profiles.active=${ENV}
+
+spring.security.oauth2.client.registration.cftunnels.client-id=${OAUTH_CLIENT_ID}
+spring.security.oauth2.client.registration.cftunnels.client-secret=${OAUTH_CLIENT_SECRET}
+spring.security.oauth2.client.registration.cftunnels.authorization-grant-type=authorization_code
+spring.security.oauth2.client.registration.cftunnels.redirect-uri={baseUrl}/login/oauth2/code/cftunnels
+spring.security.oauth2.client.registration.cftunnels.scope=openid,profile,email,offline_access,cftunnels
+
+spring.security.oauth2.client.provider.cftunnels.authorization-uri=https://auth.hithomelabs.com/application/o/authorize/
+spring.security.oauth2.client.provider.cftunnels.token-uri=https://auth.hithomelabs.com/application/o/token/
+spring.security.oauth2.client.provider.cftunnels.user-info-uri=https://auth.hithomelabs.com/application/o/userinfo/
+spring.security.oauth2.client.provider.cftunnels.jwk-set-uri=https://auth.hithomelabs.com/application/o/cftunnels/jwks/
+spring.security.oauth2.client.provider.cftunnels.issuer-uri=https://auth.hithomelabs.com/application/o/cftunnels/