Add Azure SSO bootstrap

Create a client registration from AZURE_* environment variables and disable SSO cleanly when no registration is available.

Add a docker_push.sh helper for building and publishing production images.

docker_push.sh

@@ -0,0 +1,97 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+readonly SCRIPT_DIR="$(CDPATH= cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+readonly PROJECT_DIR="${SCRIPT_DIR}"
+readonly DEFAULT_REGISTRY_IMAGE="registry.assecutor.org/emulatorstation"
+readonly REGISTRY_IMAGE="${REGISTRY_IMAGE:-${DEFAULT_REGISTRY_IMAGE}}"
+
+usage() {
+  cat <<'EOF'
+Verwendung:
+  ./docker_push.sh [x.y.z]
+
+Beispiele:
+  ./docker_push.sh 0.9.13
+  ./docker_push.sh
+
+Voraussetzungen:
+  - Docker Buildx ist installiert
+  - Login zur Registry wurde bereits ausgeführt:
+    docker login registry.assecutor.org
+
+Hinweise:
+  - Ohne Versionsargument wird die Version aus der pom.xml als Docker-Tag verwendet.
+  - Das JAR wird immer mit der aktuellen Projektversion aus der pom.xml gebaut.
+  - Das Ziel-Image kann optional per Umgebungsvariable überschrieben werden:
+    REGISTRY_IMAGE=registry.assecutor.org/mein-image ./docker_push.sh
+EOF
+}
+
+fail() {
+  echo "Fehler: $*" >&2
+  exit 1
+}
+
+require_command() {
+  command -v "$1" >/dev/null 2>&1 || fail "'$1' wurde nicht gefunden."
+}
+
+build_production_jar() {
+  echo "Baue Production-JAR ${JAR_FILE_REL} ..."
+  (
+    cd "${PROJECT_DIR}" && ./mvnw -Pproduction -DskipTests clean package
+  )
+
+  [[ -f "${JAR_FILE_ABS}" ]] || fail "Production-JAR wurde nicht gefunden: ${JAR_FILE_ABS}"
+}
+
+resolve_pom_value() {
+  local expression="$1"
+
+  [[ -x "${PROJECT_DIR}/mvnw" ]] || fail "'${PROJECT_DIR}/mvnw' wurde nicht gefunden oder ist nicht ausführbar."
+
+  local value
+  value="$(
+    cd "${PROJECT_DIR}" && ./mvnw -q -DforceStdout help:evaluate -Dexpression="${expression}" \
+      | awk 'NF { last = $0 } END { print last }'
+  )"
+
+  [[ -n "${value}" ]] || fail "Wert '${expression}' konnte nicht aus der pom.xml ermittelt werden."
+  echo "${value}"
+}
+
+if [[ "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
+  usage
+  exit 0
+fi
+
+readonly PROJECT_VERSION="$(resolve_pom_value project.version)"
+readonly ARTIFACT_ID="$(resolve_pom_value project.artifactId)"
+readonly IMAGE_TAG="${1:-${PROJECT_VERSION}}"
+
+if [[ ! "${IMAGE_TAG}" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+  fail "Versionsnummer muss das Format x.y.z haben."
+fi
+
+require_command docker
+docker buildx version >/dev/null 2>&1 || fail "Docker Buildx ist nicht verfügbar."
+
+readonly JAR_FILE_REL="target/${ARTIFACT_ID}-${PROJECT_VERSION}.jar"
+readonly JAR_FILE_ABS="${PROJECT_DIR}/${JAR_FILE_REL}"
+
+cd "${PROJECT_DIR}"
+
+echo "Verwende Build-Version ${PROJECT_VERSION} und Image-Tag ${IMAGE_TAG}."
+build_production_jar
+
+echo "Pushe Image ${REGISTRY_IMAGE}:${IMAGE_TAG} ..."
+docker buildx build \
+  --platform linux/amd64 \
+  -f "${PROJECT_DIR}/Dockerfile" \
+  -t "${REGISTRY_IMAGE}:${IMAGE_TAG}" \
+  --push \
+  "${PROJECT_DIR}"
+
+echo "Fertig: ${REGISTRY_IMAGE}:${IMAGE_TAG}"

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>de.assecutor.emulatorstation</groupId>
     <artifactId>emulatorstation</artifactId>
-    <version>0.9.13</version>
+    <version>0.9.2</version>
 
     <packaging>jar</packaging>
 

src/main/java/de/assecutor/emulatorstation/base/ui/view/security/AzureClientRegistrationConfiguration.java

@@ -0,0 +1,123 @@
+package de.assecutor.emulatorstation.base.ui.view.security;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Condition;
+import org.springframework.context.annotation.ConditionContext;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.type.AnnotatedTypeMetadata;
+import org.springframework.core.env.Environment;
+import org.springframework.security.oauth2.client.registration.ClientRegistration;
+import org.springframework.security.oauth2.client.registration.ClientRegistrationRepository;
+import org.springframework.security.oauth2.client.registration.InMemoryClientRegistrationRepository;
+import org.springframework.security.oauth2.core.AuthorizationGrantType;
+import org.springframework.security.oauth2.core.ClientAuthenticationMethod;
+import org.springframework.security.oauth2.core.oidc.IdTokenClaimNames;
+import org.springframework.util.StringUtils;
+
+import java.util.Arrays;
+import java.util.List;
+
+@Configuration
+public class AzureClientRegistrationConfiguration {
+
+    private static final Logger logger = LoggerFactory.getLogger(AzureClientRegistrationConfiguration.class);
+
+    private static final String DEFAULT_REDIRECT_URI = "{baseUrl}/login/oauth2/code/{registrationId}";
+    private static final String DEFAULT_SCOPES = "openid,profile,email,offline_access";
+
+    @Bean
+    @ConditionalOnMissingBean(ClientRegistrationRepository.class)
+    @org.springframework.context.annotation.Conditional(AzureClientRegistrationAvailableCondition.class)
+    public ClientRegistrationRepository azureClientRegistrationRepository(Environment environment) {
+        String tenantId = resolveTenantId(environment);
+        String issuerUri = resolveIssuerUri(environment, tenantId);
+        String clientId = environment.getProperty("AZURE_CLIENT_ID");
+        String clientSecret = environment.getProperty("AZURE_CLIENT_SECRET");
+        String redirectUri = firstNonBlank(environment.getProperty("AZURE_REDIRECT_URI"), DEFAULT_REDIRECT_URI);
+        List<String> scopes = parseScopes(firstNonBlank(environment.getProperty("AZURE_SCOPES"), DEFAULT_SCOPES));
+
+        ClientRegistration registration = ClientRegistration.withRegistrationId("azure").clientName("Azure")
+                .clientId(clientId).clientSecret(clientSecret)
+                .clientAuthenticationMethod(ClientAuthenticationMethod.CLIENT_SECRET_BASIC)
+                .authorizationGrantType(AuthorizationGrantType.AUTHORIZATION_CODE).redirectUri(redirectUri)
+                .scope(scopes).authorizationUri(buildAuthorizationUri(tenantId)).tokenUri(buildTokenUri(tenantId))
+                .jwkSetUri(buildJwkSetUri(tenantId)).issuerUri(issuerUri).userNameAttributeName(IdTokenClaimNames.SUB)
+                .build();
+
+        logger.info("Azure OAuth2 ClientRegistration wurde aus AZURE_* Umgebungsvariablen erstellt.");
+        return new InMemoryClientRegistrationRepository(registration);
+    }
+
+    static String resolveTenantId(Environment environment) {
+        String tenantId = environment.getProperty("AZURE_TENANT_ID");
+        if (StringUtils.hasText(tenantId)) {
+            return tenantId.trim();
+        }
+
+        String issuerUri = environment.getProperty("AZURE_ISSUER_URI");
+        if (!StringUtils.hasText(issuerUri)) {
+            return null;
+        }
+
+        String normalized = issuerUri.trim();
+        String marker = "login.microsoftonline.com/";
+        int markerIndex = normalized.indexOf(marker);
+        if (markerIndex < 0) {
+            return null;
+        }
+
+        String afterHost = normalized.substring(markerIndex + marker.length());
+        int slashIndex = afterHost.indexOf('/');
+        if (slashIndex < 0) {
+            return StringUtils.hasText(afterHost) ? afterHost : null;
+        }
+
+        String tenant = afterHost.substring(0, slashIndex);
+        return StringUtils.hasText(tenant) ? tenant : null;
+    }
+
+    static String resolveIssuerUri(Environment environment, String tenantId) {
+        String issuerUri = environment.getProperty("AZURE_ISSUER_URI");
+        if (StringUtils.hasText(issuerUri)) {
+            return issuerUri.trim();
+        }
+        if (!StringUtils.hasText(tenantId)) {
+            return null;
+        }
+        return "https://login.microsoftonline.com/" + tenantId + "/v2.0";
+    }
+
+    private static String buildAuthorizationUri(String tenantId) {
+        return "https://login.microsoftonline.com/" + tenantId + "/oauth2/v2.0/authorize";
+    }
+
+    private static String buildTokenUri(String tenantId) {
+        return "https://login.microsoftonline.com/" + tenantId + "/oauth2/v2.0/token";
+    }
+
+    private static String buildJwkSetUri(String tenantId) {
+        return "https://login.microsoftonline.com/" + tenantId + "/discovery/v2.0/keys";
+    }
+
+    private static List<String> parseScopes(String scopesValue) {
+        return Arrays.stream(scopesValue.split(",")).map(String::trim).filter(StringUtils::hasText).toList();
+    }
+
+    private static String firstNonBlank(String value, String fallback) {
+        return StringUtils.hasText(value) ? value.trim() : fallback;
+    }
+
+    static final class AzureClientRegistrationAvailableCondition implements Condition {
+
+        @Override
+        public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {
+            Environment environment = context.getEnvironment();
+            return StringUtils.hasText(environment.getProperty("AZURE_CLIENT_ID"))
+                    && StringUtils.hasText(environment.getProperty("AZURE_CLIENT_SECRET"))
+                    && StringUtils.hasText(resolveTenantId(environment));
+        }
+    }
+}

src/main/java/de/assecutor/emulatorstation/base/ui/view/security/SecurityConfig.java

@@ -13,9 +13,11 @@ import de.assecutor.emulatorstation.Application;
 public class SecurityConfig extends VaadinWebSecurity {
 
     private final LoginSessionService loginSessionService;
+    private final SsoConfiguration ssoConfiguration;
 
-    public SecurityConfig(LoginSessionService loginSessionService) {
+    public SecurityConfig(LoginSessionService loginSessionService, SsoConfiguration ssoConfiguration) {
         this.loginSessionService = loginSessionService;
+        this.ssoConfiguration = ssoConfiguration;
     }
 
     @Override
@@ -24,30 +26,44 @@ public class SecurityConfig extends VaadinWebSecurity {
 
         setLoginView(http, LoginView.class);
 
-        LogoutSuccessHandler logoutSuccessHandler = oidcLogoutSuccessHandler("{baseUrl}/login");
-
         http.sessionManagement(session -> session
                 // Wichtig: Session-Fixation so konfigurieren, dass Session-Attribute (z.B. "user") erhalten bleiben
                 .sessionFixation(fixation -> fixation.migrateSession()).maximumSessions(Application.MAX_ACTIVE_SESSIONS)
-                .maxSessionsPreventsLogin(false))
+                .maxSessionsPreventsLogin(false));
-                .oauth2Login(oauth2 -> oauth2.loginPage("/login").defaultSuccessUrl("/login", true)
-                        .failureUrl("/login?error"))
-                .logout(logout -> {
-                    logout.logoutRequestMatcher(new AntPathRequestMatcher("/logout", "GET")).invalidateHttpSession(true)
-                            .clearAuthentication(true).deleteCookies("JSESSIONID")
-                            .addLogoutHandler((request, response, authentication) -> {
-                                var session = request.getSession(false);
-                                if (session != null) {
-                                    loginSessionService.cleanupApplicationSession(session.getId());
-                                }
-                            });
 
-                    if (logoutSuccessHandler != null) {
+        if (ssoConfiguration.isEnabled()) {
-                        logout.logoutSuccessHandler(logoutSuccessHandler);
+            LogoutSuccessHandler logoutSuccessHandler = oidcLogoutSuccessHandler("{baseUrl}/login");
-                    } else {
+
-                        logout.logoutSuccessUrl("/login");
+            http.oauth2Login(
+                    oauth2 -> oauth2.loginPage("/login").defaultSuccessUrl("/login", true).failureUrl("/login?error"));
+
+            http.logout(logout -> {
+                logout.logoutRequestMatcher(new AntPathRequestMatcher("/logout", "GET")).invalidateHttpSession(true)
+                        .clearAuthentication(true).deleteCookies("JSESSIONID")
+                        .addLogoutHandler((request, response, authentication) -> {
+                            var session = request.getSession(false);
+                            if (session != null) {
+                                loginSessionService.cleanupApplicationSession(session.getId());
+                            }
+                        });
+
+                if (logoutSuccessHandler != null) {
+                    logout.logoutSuccessHandler(logoutSuccessHandler);
+                } else {
+                    logout.logoutSuccessUrl("/login");
+                }
+            });
+            return;
+        }
+
+        http.logout(logout -> logout.logoutRequestMatcher(new AntPathRequestMatcher("/logout", "GET"))
+                .invalidateHttpSession(true).clearAuthentication(true).deleteCookies("JSESSIONID")
+                .addLogoutHandler((request, response, authentication) -> {
+                    var session = request.getSession(false);
+                    if (session != null) {
+                        loginSessionService.cleanupApplicationSession(session.getId());
                     }
-                });
+                }).logoutSuccessUrl("/"));
     }
 
 }

src/main/java/de/assecutor/emulatorstation/base/ui/view/security/SsoConfiguration.java

@@ -1,15 +1,28 @@
 package de.assecutor.emulatorstation.base.ui.view.security;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.security.oauth2.client.registration.ClientRegistrationRepository;
 import org.springframework.stereotype.Service;
 
 @Service
 public class SsoConfiguration {
 
+    private static final Logger logger = LoggerFactory.getLogger(SsoConfiguration.class);
+
     private final boolean enabled;
 
-    public SsoConfiguration(@Value("${app.sso.enabled:true}") boolean enabled) {
+    public SsoConfiguration(@Value("${app.sso.enabled:true}") boolean enabled,
-        this.enabled = enabled;
+            ObjectProvider<ClientRegistrationRepository> clientRegistrationRepositoryProvider) {
+        boolean clientRegistrationAvailable = clientRegistrationRepositoryProvider.getIfAvailable() != null;
+        this.enabled = enabled && clientRegistrationAvailable;
+
+        if (enabled && !clientRegistrationAvailable) {
+            logger.warn("SSO ist aktiviert, aber keine OAuth2-Client-Registrierung verfuegbar. "
+                    + "Die Anwendung startet daher mit deaktiviertem SSO.");
+        }
     }
 
     public boolean isEnabled() {