add j2html

net-http-j2html/build.gradle

@@ -0,0 +1,4 @@
+dependencies {
+    api project(':net-http-server')
+    api libs.j2html
+}

net-http-j2html/src/main/java/module-info.java

@@ -0,0 +1,9 @@
+module org.xbib.net.http.j2html {
+    exports org.xbib.net.http.j2html;
+    requires org.xbib.net;
+    requires org.xbib.net.http;
+    requires org.xbib.net.http.server;
+    requires org.xbib.config;
+    requires com.j2html;
+    requires java.logging;
+}

net-http-j2html/src/main/java/org/xbib/net/http/j2html/J2HtmlResourceHandler.java

@@ -0,0 +1,68 @@
+package org.xbib.net.http.j2html;
+
+import org.xbib.net.Attributes;
+import org.xbib.net.Resource;
+import org.xbib.net.buffer.DataBuffer;
+import org.xbib.net.http.HttpResponseStatus;
+import org.xbib.net.http.server.application.Application;
+import org.xbib.net.http.server.resource.HtmlTemplateResource;
+import org.xbib.net.http.server.resource.HtmlTemplateResourceHandler;
+import org.xbib.net.http.server.route.HttpRouterContext;
+
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Path;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import static j2html.TagCreator.body;
+import static j2html.TagCreator.h1;
+import static org.xbib.net.http.HttpHeaderNames.CONTENT_TYPE;
+
+public class J2HtmlResourceHandler extends HtmlTemplateResourceHandler {
+
+    public J2HtmlResourceHandler() {
+        this(null, "java", "index.java");
+    }
+
+    public J2HtmlResourceHandler(Path root, String suffix, String indexFileName) {
+        super(root, suffix, indexFileName);
+    }
+
+    @Override
+    protected Resource createResource(HttpRouterContext httpRouterContext) throws IOException {
+        return new J2HtmlResource(this, httpRouterContext);
+    }
+
+    protected static class J2HtmlResource extends HtmlTemplateResource {
+
+        private static final Logger logger = Logger.getLogger(J2HtmlResource.class.getName());
+
+        protected J2HtmlResource(HtmlTemplateResourceHandler templateResourceHandler, HttpRouterContext httpRouterContext) throws IOException {
+            super(templateResourceHandler, httpRouterContext);
+        }
+
+        @Override
+        public void render(HttpRouterContext context) throws IOException {
+            Application application = context.getAttributes().get(Application.class, "application");
+            if (application == null) {
+                logger.log(Level.WARNING, "application is null");
+                return;
+            }
+            DataBuffer dataBuffer = context.getDataBufferFactory().allocateBuffer();
+            dataBuffer.write(render(application, context.getAttributes()), StandardCharsets.UTF_8);
+            HttpResponseStatus httpResponseStatus = context.getAttributes().get(HttpResponseStatus.class, "_status", HttpResponseStatus.OK);
+            context.status(httpResponseStatus)
+                    .header("cache-control", "no-cache") // override default must-revalidate behavior
+                    .header("content-length", Integer.toString(dataBuffer.writePosition()))
+                    .header(CONTENT_TYPE, "text/html; charset=" + StandardCharsets.UTF_8.displayName())
+                    .body(dataBuffer);
+        }
+
+        protected String render(Application application, Attributes attributes) {
+            return body(
+                    h1("Hello World")
+            ).render();
+        }
+    }
+}

net-http-j2html/src/main/java/org/xbib/net/http/j2html/J2HtmlService.java

@@ -0,0 +1,15 @@
+package org.xbib.net.http.j2html;
+
+import org.xbib.net.http.server.service.BaseHttpService;
+import org.xbib.net.http.server.service.BaseHttpServiceBuilder;
+
+public class J2HtmlService extends BaseHttpService {
+
+    protected J2HtmlService(BaseHttpServiceBuilder builder) {
+        super(builder);
+    }
+
+    public static J2HtmlServiceBuilder builder() {
+        return new J2HtmlServiceBuilder();
+    }
+}

net-http-j2html/src/main/java/org/xbib/net/http/j2html/J2HtmlServiceBuilder.java

@@ -0,0 +1,69 @@
+package org.xbib.net.http.j2html;
+
+import org.xbib.net.ParameterDefinition;
+import org.xbib.net.http.HttpMethod;
+import org.xbib.net.http.server.HttpHandler;
+import org.xbib.net.http.server.domain.HttpSecurityDomain;
+import org.xbib.net.http.server.service.BaseHttpServiceBuilder;
+
+import java.nio.file.Path;
+
+public class J2HtmlServiceBuilder extends BaseHttpServiceBuilder {
+
+    protected Path prefix;
+
+    protected String suffix;
+
+    public J2HtmlServiceBuilder() {
+        super();
+        this.prefix = null;
+    }
+
+    @Override
+    public J2HtmlServiceBuilder setPath(String path) {
+        super.setPath(path);
+        return this;
+    }
+
+    @Override
+    public J2HtmlServiceBuilder setMethod(HttpMethod... httpMethod) {
+        super.setMethod(httpMethod);
+        return this;
+    }
+
+    @Override
+    public J2HtmlServiceBuilder setHandler(HttpHandler... handler) {
+        super.setHandler(handler);
+        return this;
+    }
+
+    @Override
+    public J2HtmlServiceBuilder setParameterDefinition(ParameterDefinition... parameterDefinition) {
+        super.setParameterDefinition(parameterDefinition);
+        return this;
+    }
+
+    @Override
+    public J2HtmlServiceBuilder setSecurityDomain(HttpSecurityDomain securityDomain) {
+        super.setSecurityDomain(securityDomain);
+        return this;
+    }
+
+    public J2HtmlServiceBuilder setPrefix(Path prefix) {
+        this.prefix = prefix;
+        return this;
+    }
+
+    public J2HtmlServiceBuilder setSuffix(String suffix) {
+        this.suffix = suffix;
+        return this;
+    }
+
+    public J2HtmlService build() {
+        if (this.handlers == null) {
+            HttpHandler httpHandler = new J2HtmlResourceHandler(prefix, suffix, "index.java");
+            setHandler(httpHandler);
+        }
+        return new J2HtmlService(this);
+    }
+}

net-http-server-application-web/build.gradle

@@ -4,6 +4,7 @@ dependencies {
     api project(':net-http-server-netty-secure')
     api project(':net-http-server-application-config')
     api project(':net-http-template-groovy')
+    api project(':net-http-j2html')
     api libs.jdbc.query
     implementation libs.webjars.bootstrap
     implementation libs.webjars.jquery
@@ -12,7 +13,7 @@ dependencies {
 }
 
 application {
-    mainClass.set('org.xbib.net.http.server.application.web.Bootstrap')
+    mainClass.set('org.xbib.net.http.server.application.web.j2html.Bootstrap')
     applicationDefaultJvmArgs = [
             '-Dfile.encoding=UTF-8',
             '-Duser.language=de',

net-http-server-application-web/src/main/java/module-info.java

@@ -1,6 +1,7 @@
 module org.xbib.net.http.server.application.web {
     uses org.xbib.config.ConfigLogger;
     exports org.xbib.net.http.server.application.web;
+    exports org.xbib.net.http.server.application.web.groovy;
     requires org.xbib.net;
     requires org.xbib.net.mime;
     requires org.xbib.net.http;
@@ -8,8 +9,10 @@ module org.xbib.net.http.server.application.web {
     requires org.xbib.net.http.server.netty;
     requires org.xbib.net.http.server.netty.secure;
     requires org.xbib.net.http.template.groovy;
+    requires org.xbib.net.http.j2html;
     requires org.xbib.datastructures.tiny;
     requires org.xbib.jdbc.query;
     requires org.xbib.config;
     requires java.logging;
+    requires com.j2html;
 }

net-http-server-application-web/src/main/java/org/xbib/net/http/server/application/web/groovy/Bootstrap.java

@@ -1,8 +1,9 @@
-package org.xbib.net.http.server.application.web;
+package org.xbib.net.http.server.application.web.groovy;
 
 import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;
 import java.util.ServiceLoader;
 import org.xbib.config.ConfigLoader;
@@ -14,6 +15,9 @@ import org.xbib.net.http.HttpHeaderNames;
 import org.xbib.net.http.HttpHeaderValues;
 import org.xbib.net.http.HttpResponseStatus;
 import org.xbib.net.http.HttpVersion;
+import org.xbib.net.http.j2html.J2HtmlResourceHandler;
+import org.xbib.net.http.j2html.J2HtmlService;
+import org.xbib.net.http.server.application.web.WebApplication;
 import org.xbib.net.http.server.domain.BaseHttpDomain;
 import org.xbib.net.http.server.domain.BaseHttpSecurityDomain;
 import org.xbib.net.http.server.domain.HttpSecurityDomain;
@@ -39,7 +43,6 @@ import org.xbib.net.http.template.groovy.GroovyInternalServerErrorHandler;
 import org.xbib.net.http.template.groovy.GroovyHttpStatusHandler;
 import org.xbib.net.http.template.groovy.GroovyTemplateResourceHandler;
 import org.xbib.net.http.template.groovy.GroovyTemplateService;
-import org.xbib.net.mime.stream.Hex;
 import org.xbib.settings.Settings;
 
 public final class Bootstrap {
@@ -164,7 +167,7 @@ public final class Bootstrap {
                                 .setHandler(ctx -> {
                                     ctx.status(HttpResponseStatus.OK)
                                             .header(HttpHeaderNames.CONTENT_TYPE, "image/x-icon")
-                                            .body(NettyDataBufferFactory.getInstance().wrap(Hex.fromHex(hexFavIcon)))
+                                            .body(NettyDataBufferFactory.getInstance().wrap(fromHex(hexFavIcon)))
                                             .done();
                                 })
                                 .build())
@@ -173,6 +176,11 @@ public final class Bootstrap {
                                 .setHandler(new ClassLoaderResourceHandler(Bootstrap.class.getClassLoader(), "META-INF/resources/"))
                                 .build())
                         .addService(httpService)
+                        .addService(J2HtmlService.builder()
+                                .setPrefix("/j2html")
+                                .setPath("glob:**")
+                                .setHandler(new J2HtmlResourceHandler())
+                                .build())
                         .addService(GroovyTemplateService.builder()
                                 .setTemplateName("index.gtpl")
                                 .setSecurityDomain(securityDomain)
@@ -205,5 +213,66 @@ public final class Bootstrap {
 
 
     private static final String hexFavIcon =
-            "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";
+            "000001000100101000000100200068040000160000002800000010000000" +
+                    "200000000100200000000000000000000000000000000000000000000000" +
+                    "000099330000993300009933000099330000993300009933000099330000" +
+                    "993300009933000099330000993300009933000099330000993300009933" +
+                    "00009933000099330000993300009933000099330000993300ff993300ff" +
+                    "993300ff993300ff993300ff993300ff993300ff993300ff993300ff9933" +
+                    "0000993300009933000099330000993300009933000099330000993300ff" +
+                    "993300ff993300ff993300ff993300ff993300ff993300ff993300ff9933" +
+                    "00ff99330000993300009933000099330000993300009933000099330000" +
+                    "993300ff9933000099330000993300009933000099330000993300009933" +
+                    "00009933000099330000993300009933000099330000993300ff993300ff" +
+                    "99330000993300ff99330000993300ff993300ff993300ff993300ff9933" +
+                    "00ff993300ff993300ff993300ff993300ff9933000099330000993300ff" +
+                    "993300ff99330000993300ff99330000993300ff993300ff993300ff9933" +
+                    "00ff993300ff993300ff993300ff993300ff993300ff9933000000000000" +
+                    "993300ff993300ff00000000993300ff0000000000000000000000000000" +
+                    "00000000000000000000000000000000000099330000993300ff99330000" +
+                    "00000000993300ff993300ff00000000993300ff00000000000000000000" +
+                    "0000000000000000000000000000993300ff993300ff00000000993300ff" +
+                    "0000000000000000993300ff993300ff00000000993300ff993300009933" +
+                    "000099330000993300009933000099330000993300ff993300ff99330000" +
+                    "993300ff9933000000000000993300ff993300ff00000000993300ff9933" +
+                    "00009933000099330000993300009933000099330000993300ff993300ff" +
+                    "99330000993300ff9933000000000000993300ff993300ff000000009933" +
+                    "00ff993300009933000099330000993300009933000099330000993300ff" +
+                    "993300ff99330000993300ff9933000000000000993300ff993300ff0000" +
+                    "000099330000993300009933000099330000993300009933000099330000" +
+                    "993300ff993300ff99330000993300ff9933000000000000993300ff9933" +
+                    "00ff00000000993300ff993300ff993300ff993300ff993300ff993300ff" +
+                    "993300ff993300ff993300ff99330000993300ff99330000000000009933" +
+                    "00ff993300ff000000009933000099330000993300009933000099330000" +
+                    "993300009933000099330000993300009933000099330000993300000000" +
+                    "0000993300ff993300ff993300ff993300ff993300ff993300ff993300ff" +
+                    "993300ff993300ff993300ff993300ff993300ff99330000993300009933" +
+                    "000000000000000000000000000000000000993300009933000099330000" +
+                    "993300009933000099330000993300009933000099330000993300009933" +
+                    "000099330000ffff0000f0070000f0070000f7ff00009401000094010000" +
+                    "97fd000097e5000097e5000097e5000097e500009fe50000900500009fff" +
+                    "000080070000ffff0000";
+
+
+    private static byte[] fromHex(String hex) {
+        Objects.requireNonNull(hex);
+        int len = hex.length();
+        byte[] data = new byte[len / 2];
+        for (int i = 0; i < len; i += 2) {
+            data[i / 2] = (byte) fromHex(hex.charAt(i), hex.charAt(i + 1));
+        }
+        return data;
+    }
+
+    private static int fromHex(int b1, int b2) {
+        int i1 = Character.digit(b1, 16);
+        if (i1 == -1) {
+            throw new IllegalArgumentException("invalid character in hexadecimal: " + b1);
+        }
+        int i2 = Character.digit(b2, 16);
+        if (i2 == -1) {
+            throw new IllegalArgumentException("invalid character in hexadecimal: " + b2);
+        }
+        return (i1 << 4) + i2;
+    }
 }

net-http-server-application-web/src/main/java/org/xbib/net/http/server/application/web/j2html/Bootstrap.java

@@ -0,0 +1,264 @@
+package org.xbib.net.http.server.application.web.j2html;
+
+import org.xbib.config.ConfigLoader;
+import org.xbib.config.ConfigLogger;
+import org.xbib.config.ConfigParams;
+import org.xbib.config.SystemConfigLogger;
+import org.xbib.net.NetworkClass;
+import org.xbib.net.http.HttpHeaderNames;
+import org.xbib.net.http.HttpHeaderValues;
+import org.xbib.net.http.HttpResponseStatus;
+import org.xbib.net.http.HttpVersion;
+import org.xbib.net.http.j2html.J2HtmlResourceHandler;
+import org.xbib.net.http.j2html.J2HtmlService;
+import org.xbib.net.http.server.application.web.WebApplication;
+import org.xbib.net.http.server.auth.BasicAuthenticationHandler;
+import org.xbib.net.http.server.auth.FormAuthenticationHandler;
+import org.xbib.net.http.server.domain.BaseHttpDomain;
+import org.xbib.net.http.server.domain.BaseHttpSecurityDomain;
+import org.xbib.net.http.server.domain.HttpSecurityDomain;
+import org.xbib.net.http.server.executor.BaseExecutor;
+import org.xbib.net.http.server.executor.Executor;
+import org.xbib.net.http.server.ldap.LdapContextFactory;
+import org.xbib.net.http.server.ldap.LdapGroupMapping;
+import org.xbib.net.http.server.ldap.LdapRealm;
+import org.xbib.net.http.server.ldap.LdapUserMapping;
+import org.xbib.net.http.server.netty.NettyHttpServer;
+import org.xbib.net.http.server.netty.buffer.NettyDataBufferFactory;
+import org.xbib.net.http.server.netty.secure.HttpsAddress;
+import org.xbib.net.http.server.netty.secure.HttpsRequest;
+import org.xbib.net.http.server.netty.secure.NettyHttpsServerConfig;
+import org.xbib.net.http.server.resource.ClassLoaderResourceHandler;
+import org.xbib.net.http.server.route.BaseHttpRouter;
+import org.xbib.net.http.server.route.HttpRouter;
+import org.xbib.net.http.server.service.BaseHttpService;
+import org.xbib.net.http.server.service.HttpService;
+import org.xbib.settings.Settings;
+
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.ServiceLoader;
+
+public final class Bootstrap {
+
+    private static final ConfigLogger bootLogger;
+
+    static {
+        // early loading of boot logger during static initialization block
+        ServiceLoader<ConfigLogger> serviceLoader = ServiceLoader.load(ConfigLogger.class);
+        Optional<ConfigLogger> optionalBootLogger = serviceLoader.findFirst();
+        bootLogger = optionalBootLogger.orElse(new SystemConfigLogger());
+    }
+
+    private Bootstrap() {
+    }
+
+    public static void main(String[] args) throws Exception {
+        String profile = args.length > 0 ? args[0] : System.getProperty("application.profile");
+        ConfigParams configParams;
+        ConfigLoader configLoader;
+        Settings settings;
+        configParams = new ConfigParams()
+                .withArgs(args)
+                .withDirectoryName("application")
+                .withFileNamesWithoutSuffix(profile)
+                .withSystemEnvironment()
+                .withSystemProperties();
+        configLoader = ConfigLoader.getInstance()
+                .withLogger(bootLogger);
+        settings = configLoader.load(configParams);
+        int rc = 1;
+        try {
+            rc = runApplication(settings);
+        } catch (Throwable t) {
+            t.printStackTrace();
+        } finally {
+            // always hard-exit the JVM, maybe there are threads hanging
+            System.exit(rc);
+        }
+    }
+
+    private static int runApplication(Settings settings) throws Exception {
+        HttpsAddress httpsAddress = HttpsAddress.builder()
+                .setSecure(true)
+                .setVersion(HttpVersion.HTTP_2_0)
+                .setHost("localhost")
+                .setPort(8443)
+                .setSelfCert("localhost")
+                .build();
+        NettyHttpsServerConfig serverConfig = new NettyHttpsServerConfig();
+        serverConfig.setServerName("WebApplication", Bootstrap.class.getPackage().getImplementationVersion());
+        serverConfig.setNetworkClass(NetworkClass.SITE);
+        serverConfig.setDebug(true);
+
+        Map<String, LdapContextFactory> contextFactories = new HashMap<>();
+        LdapContextFactory contextFactory = new LdapContextFactory("simple",
+                "com.sun.jndi.ldap.LdapCtxFactory",
+                null,
+                "ldap://localhost:1389",
+                false,
+                null,
+                null,
+                "follow"
+        );
+        contextFactories.put("default", contextFactory);
+        Map<String, LdapUserMapping> userMappings = new HashMap<>();
+        LdapUserMapping userMapping = new LdapUserMapping("ou=People,dc=example.org",
+                "(&(objectclass=posixAccount)(uid:caseExactMatch:={0}))",
+                "uid",
+                "cn"
+        );
+        userMappings.put("default", userMapping);
+        Map<String, LdapGroupMapping> groupMappings = new HashMap<>();
+        LdapGroupMapping groupMapping = new LdapGroupMapping("ou=group,dc=example.org",
+                "cn",
+                "(&(objectclass=posixGroup)(memberUid:caseExactMatch:={0}))",
+                new String[] { "uid" }
+        );
+        groupMappings.put("default", groupMapping);
+        LdapRealm ldapRealm = new LdapRealm("Web Application Realm", contextFactories, userMappings, groupMappings);
+
+        BasicAuthenticationHandler basicAuthenticationHandler =
+                new BasicAuthenticationHandler(ldapRealm);
+
+        FormAuthenticationHandler formAuthenticationHandler =
+                new FormAuthenticationHandler("j_username", "j_password", "j_remember",
+                        "demo/auth/form/index.gtpl", ldapRealm);
+
+        HttpSecurityDomain securityDomain = BaseHttpSecurityDomain.builder()
+                .setSecurityRealm(ldapRealm)
+                .setHandlers(formAuthenticationHandler)
+                .build();
+
+        HttpService httpService = BaseHttpService.builder()
+                .setPath("/secure")
+                .setHandler(ctx -> {
+                    ctx.status(HttpResponseStatus.OK)
+                            .header(HttpHeaderNames.CONTENT_TYPE, HttpHeaderValues.TEXT_PLAIN)
+                            .charset(StandardCharsets.UTF_8)
+                            .body("secure domain: " +
+                            " SNI host = " + ctx.getRequest().as(HttpsRequest.class).getSNIHost() +
+                            " SSL session = " + ctx.getRequest().as(HttpsRequest.class).getSSLSession() +
+                            " base URL = " + ctx.getRequest().getBaseURL() +
+                            " parameter = " + ctx.getRequest().getParameter().allToString() +
+                            " attributes = " + ctx.getAttributes() +
+                            " local address = " + ctx.getRequest().getLocalAddress() +
+                            " remote address = " + ctx.getRequest().getRemoteAddress());
+                    ctx.done();
+                })
+                .build();
+
+        HttpRouter httpRouter = BaseHttpRouter.builder()
+                .setHandler(500, new InternalServerErrorHandler())
+                .addDomain(BaseHttpDomain.builder()
+                        .setHttpAddress(httpsAddress)
+                        .addService(BaseHttpService.builder()
+                                .setPath("/favicon.ico")
+                                .setHandler(ctx -> {
+                                    ctx.status(HttpResponseStatus.OK)
+                                            .header(HttpHeaderNames.CONTENT_TYPE, "image/x-icon")
+                                            .body(NettyDataBufferFactory.getInstance().wrap(fromHex(hexFavIcon)))
+                                            .done();
+                                })
+                                .build())
+                        .addService(BaseHttpService.builder()
+                                .setPath("/webjars/**")
+                                .setHandler(new ClassLoaderResourceHandler(Bootstrap.class.getClassLoader(), "META-INF/resources/"))
+                                .build())
+                        .addService(httpService)
+                        .addService(J2HtmlService.builder()
+                                .setPath("glob:**")
+                                .setHandler(new J2HtmlResourceHandler())
+                                .build())
+                        .build())
+                .build();
+
+        Executor executor = BaseExecutor.builder()
+                .build();
+
+        WebApplication application = WebApplication.builder()
+                .setSettings(settings)
+                .setSecret("1088e6b7ad58d64d09961e1357bf95544447051c6ad1332cd626e3a33bb5786b")
+                .setExecutor(executor)
+                .setRouter(httpRouter)
+                .build();
+
+        try (NettyHttpServer server = NettyHttpServer.builder()
+                .setHttpServerConfig(serverConfig)
+                .setApplication(application)
+                .build()) {
+            server.bind();
+            server.loop();
+        }
+
+        return 0;
+    }
+
+
+    private static final String hexFavIcon =
+            "000001000100101000000100200068040000160000002800000010000000" +
+                    "200000000100200000000000000000000000000000000000000000000000" +
+                    "000099330000993300009933000099330000993300009933000099330000" +
+                    "993300009933000099330000993300009933000099330000993300009933" +
+                    "00009933000099330000993300009933000099330000993300ff993300ff" +
+                    "993300ff993300ff993300ff993300ff993300ff993300ff993300ff9933" +
+                    "0000993300009933000099330000993300009933000099330000993300ff" +
+                    "993300ff993300ff993300ff993300ff993300ff993300ff993300ff9933" +
+                    "00ff99330000993300009933000099330000993300009933000099330000" +
+                    "993300ff9933000099330000993300009933000099330000993300009933" +
+                    "00009933000099330000993300009933000099330000993300ff993300ff" +
+                    "99330000993300ff99330000993300ff993300ff993300ff993300ff9933" +
+                    "00ff993300ff993300ff993300ff993300ff9933000099330000993300ff" +
+                    "993300ff99330000993300ff99330000993300ff993300ff993300ff9933" +
+                    "00ff993300ff993300ff993300ff993300ff993300ff9933000000000000" +
+                    "993300ff993300ff00000000993300ff0000000000000000000000000000" +
+                    "00000000000000000000000000000000000099330000993300ff99330000" +
+                    "00000000993300ff993300ff00000000993300ff00000000000000000000" +
+                    "0000000000000000000000000000993300ff993300ff00000000993300ff" +
+                    "0000000000000000993300ff993300ff00000000993300ff993300009933" +
+                    "000099330000993300009933000099330000993300ff993300ff99330000" +
+                    "993300ff9933000000000000993300ff993300ff00000000993300ff9933" +
+                    "00009933000099330000993300009933000099330000993300ff993300ff" +
+                    "99330000993300ff9933000000000000993300ff993300ff000000009933" +
+                    "00ff993300009933000099330000993300009933000099330000993300ff" +
+                    "993300ff99330000993300ff9933000000000000993300ff993300ff0000" +
+                    "000099330000993300009933000099330000993300009933000099330000" +
+                    "993300ff993300ff99330000993300ff9933000000000000993300ff9933" +
+                    "00ff00000000993300ff993300ff993300ff993300ff993300ff993300ff" +
+                    "993300ff993300ff993300ff99330000993300ff99330000000000009933" +
+                    "00ff993300ff000000009933000099330000993300009933000099330000" +
+                    "993300009933000099330000993300009933000099330000993300000000" +
+                    "0000993300ff993300ff993300ff993300ff993300ff993300ff993300ff" +
+                    "993300ff993300ff993300ff993300ff993300ff99330000993300009933" +
+                    "000000000000000000000000000000000000993300009933000099330000" +
+                    "993300009933000099330000993300009933000099330000993300009933" +
+                    "000099330000ffff0000f0070000f0070000f7ff00009401000094010000" +
+                    "97fd000097e5000097e5000097e5000097e500009fe50000900500009fff" +
+                    "000080070000ffff0000";
+
+
+    private static byte[] fromHex(String hex) {
+        Objects.requireNonNull(hex);
+        int len = hex.length();
+        byte[] data = new byte[len / 2];
+        for (int i = 0; i < len; i += 2) {
+            data[i / 2] = (byte) fromHex(hex.charAt(i), hex.charAt(i + 1));
+        }
+        return data;
+    }
+
+    private static int fromHex(int b1, int b2) {
+        int i1 = Character.digit(b1, 16);
+        if (i1 == -1) {
+            throw new IllegalArgumentException("invalid character in hexadecimal: " + b1);
+        }
+        int i2 = Character.digit(b2, 16);
+        if (i2 == -1) {
+            throw new IllegalArgumentException("invalid character in hexadecimal: " + b2);
+        }
+        return (i1 << 4) + i2;
+    }
+}

net-http-server-application-web/src/main/java/org/xbib/net/http/server/application/web/j2html/InternalServerErrorHandler.java

@@ -0,0 +1,37 @@
+package org.xbib.net.http.server.application.web.j2html;
+
+import org.xbib.net.Attributes;
+import org.xbib.net.http.j2html.J2HtmlResourceHandler;
+import org.xbib.net.http.server.application.Application;
+import org.xbib.net.http.server.resource.HtmlTemplateResourceHandler;
+import org.xbib.net.http.server.route.HttpRouterContext;
+import org.xbib.net.util.ExceptionFormatter;
+
+import java.io.IOException;
+
+import static j2html.TagCreator.body;
+import static j2html.TagCreator.code;
+import static j2html.TagCreator.div;
+import static j2html.TagCreator.h1;
+import static j2html.TagCreator.pre;
+
+public class InternalServerErrorHandler extends J2HtmlResourceHandler {
+
+    protected static class InternalServerErrorResource extends J2HtmlResource {
+
+        protected InternalServerErrorResource(HtmlTemplateResourceHandler templateResourceHandler, HttpRouterContext httpRouterContext) throws IOException {
+            super(templateResourceHandler, httpRouterContext);
+        }
+
+        protected String render(Application application, Attributes attributes) {
+            String message = attributes.get(String.class, "_message");
+            Throwable throwable = attributes.get(Throwable.class, "_throwable");
+            String stackTrace = ExceptionFormatter.format(throwable);
+            return body(
+                    h1("Internal Server Error"),
+                    div(message),
+                    pre(code(stackTrace))
+            ).render();
+        }
+    }
+}

settings.gradle

@@ -28,6 +28,7 @@ dependencyResolutionManagement {
             library('webjars-bootstrap', 'org.webjars', 'bootstrap').version('5.2.3')
             library('webjars-jquery', 'org.webjars', 'jquery').version('3.6.4')
             library('webjars-fontawesome', 'org.webjars', 'font-awesome').version('6.3.0')
+            library('j2html', 'com.j2html', 'j2html').version('1.6.0')
             library('net', 'org.xbib', 'net').versionRef('net')
             library('net-mime', 'org.xbib', 'net-mime').versionRef('net')
             library('net-security', 'org.xbib', 'net-security').versionRef('net')
@@ -61,6 +62,7 @@ include 'net-http-server-nio'
 include 'net-http-server-simple'
 include 'net-http-server-simple-secure'
 include 'net-http-template-groovy'
+include 'net-http-j2html'
 include 'net-http-server-application-web'
 include 'net-http-server-application-config'
 include 'net-http-server-application-database'