initial fork from https://github.com/p08dev/keycloak-hcaptcha

LICENSE

@@ -1,9 +1,202 @@
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README.md

@@ -1,3 +1,70 @@
-# keycloak-mosparo
+# keycloak-hcaptcha
 
-This is a new SPI for keycloak to integrate mosparo captcha based on the work of https://github.com/p08dev/keycloak-hcaptcha
+> I am currently not adding any new features, updates or fixes. Feel free to open a PR!
+
+To safeguard registration against bots, Keycloak has integration with Google reCAPTCHA. This provides similar functionality, but with a more privacy friendly provider named hCaptcha. The code is based on the vanilla implementation of reCAPTCHA in Keycloak.
+
+## Installation
+
+Download the newest release JAR (or compile it yourself - see below) and drop it into `your_keycloak_installation/providers`
+
+There are a few steps you need to perform in the Keycloak Admin Console. Click the Authentication left menu item and go to the Flows tab. Select the Registration flow from the drop down list on this page.
+
+Registration Flow
+![Step 1](img/step-01.png)
+Make copy of the Registration flow, and add the hCaptcha execution to the Registration Form.
+
+hCaptcha Registration Flow
+![Step 2](img/step-02.png)
+Set the 'hCaptcha' requirement to Required by clicking the appropriate radio button. This will enable hCaptcha on the screen. Next, you have to enter in the hCaptcha site key and secret that you generated at the hCaptcha.com Website. Click on the 'Actions' button that is to the right of the hCaptcha flow entry, then "Config" link, and enter in the hCaptcha site key and secret on this config page.
+
+hCaptcha Config Page
+![Step 3](img/step-03.png)
+
+Now you have to do is to change some default HTTP response headers that Keycloak sets. Keycloak will prevent a website from including any login page within an iframe. This is to prevent clickjacking attacks. You need to authorize hCaptcha to use the registration page within an iframe. Go to the Realm Settings left menu item and then go to the Security Defenses tab. You will need to add https://newassets.hcaptcha.com to the value of the Content-Security-Policy headers. In the image they are also in the X-Frame-Options, but this is not needed (you can ignore it).
+
+Authorizing Iframes
+![Step 4](img/step-04.png)
+
+To show the hCaptcha you need to modify the registration template. You can find the files in your Keycloak installation under `themes/base/login/`. If you use the user profile preview (you start your Keycloak with the `-Dkeycloak.profile=preview` flag), you need to edit the `register-user-profile.ftl`, else the `register.ftl`. Add the following code beneith the reCaptcha code:
+
+```html
+<#if hcaptchaRequired??>
+    <div class="form-group">
+        <div class="${properties.kcInputWrapperClass!}">
+            <div class="h-captcha" data-size="<#if hcaptchaCompact?? && hcaptchaCompact=="true">compact<#else>normal</#if>" data-sitekey="${hcaptchaSiteKey}"></div>
+        </div>
+    </div>
+</#if>
+```
+
+Registration Template
+![Step 5](img/step-05.png)
+
+In the last step you have to change the registration flow to the newly created one and save. Once you do this, the hCaptcha shows on the registration page and protects your site from bots!
+
+Authentication Bindings
+![Step 6](img/step-06.png)
+
+## Compiling it yourself
+
+Clone the repository:
+
+```bash
+git clone https://github.com/p08dev/keycloak-hcaptcha.git
+```
+
+Inside the repository, compile it using Maven with Java 17:
+
+```bash
+mvn clean compile package
+```
+
+You can instruct Maven to use a specific Java version by prepending the JAVA_HOME environment variable:
+
+```bash
+JAVA_HOME=/usr/lib/jvm/java-17-oracle/ mvn clean compile package
+```
+
+## © License
+[MIT](LICENSE)

pom.xml

@@ -0,0 +1,64 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>at.schuerz</groupId>
+  <artifactId>keycloak-mosparo</artifactId>
+  <version>1.0.1</version>
+  <name>Registration Authenitcation Execution Provider for mosparo</name>
+  <description>mosparo protects your users' privacy, rewards websites and helps businesses annotate their data. It's a 'drop in' replacement for reCAPTCHA that you set up in minutes.</description>
+  <packaging>jar</packaging>
+
+  <properties>
+    <version.keycloak>22.0.5</version.keycloak>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencyManagement>
+      <dependencies>
+          <dependency>
+              <groupId>org.keycloak</groupId>
+              <artifactId>keycloak-parent</artifactId>
+              <version>${version.keycloak}</version>
+              <type>pom</type>
+              <scope>import</scope>
+          </dependency>
+      </dependencies>
+  </dependencyManagement>
+
+  <dependencies>
+      <dependency>
+          <groupId>org.keycloak</groupId>
+          <artifactId>keycloak-core</artifactId>
+          <scope>provided</scope>
+      </dependency>
+      <dependency>
+          <groupId>org.keycloak</groupId>
+          <artifactId>keycloak-server-spi</artifactId>
+          <scope>provided</scope>
+      </dependency>
+      <dependency>
+          <groupId>org.keycloak</groupId>
+          <artifactId>keycloak-server-spi-private</artifactId>
+          <scope>provided</scope>
+      </dependency>
+      <dependency>
+          <groupId>org.keycloak</groupId>
+          <artifactId>keycloak-services</artifactId>
+          <scope>provided</scope>
+      </dependency>
+      <dependency>
+          <groupId>org.apache.httpcomponents</groupId>
+          <artifactId>httpcore</artifactId>
+          <scope>provided</scope>
+      </dependency>
+      <dependency>
+          <groupId>org.apache.httpcomponents</groupId>
+          <artifactId>httpclient</artifactId>
+          <scope>provided</scope>
+      </dependency>
+  </dependencies>
+  <build>
+      <finalName>${project.artifactId}</finalName>
+  </build>
+</project>

src/main/java/at/schuerz.keycloak/authenticator/RegistrationMosparo.java

@@ -0,0 +1,267 @@
+/*
+ * Copyright 2016 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package at.schuerz.keycloak.authenticator;
+
+import org.apache.http.NameValuePair;
+import org.apache.http.client.entity.UrlEncodedFormEntity;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.message.BasicNameValuePair;
+import org.jboss.logging.Logger;
+import org.keycloak.Config;
+import org.keycloak.authentication.FormAction;
+import org.keycloak.authentication.FormActionFactory;
+import org.keycloak.authentication.FormContext;
+import org.keycloak.authentication.ValidationContext;
+import org.keycloak.connections.httpclient.HttpClientProvider;
+import org.keycloak.events.Details;
+import org.keycloak.events.Errors;
+import org.keycloak.forms.login.LoginFormsProvider;
+import org.keycloak.models.AuthenticationExecutionModel;
+import org.keycloak.models.AuthenticatorConfigModel;
+import org.keycloak.models.KeycloakSession;
+import org.keycloak.models.KeycloakSessionFactory;
+import org.keycloak.models.RealmModel;
+import org.keycloak.models.UserModel;
+import org.keycloak.models.utils.FormMessage;
+import org.keycloak.provider.ConfiguredProvider;
+import org.keycloak.provider.ProviderConfigProperty;
+import org.keycloak.services.ServicesLogger;
+import org.keycloak.services.messages.Messages;
+import org.keycloak.services.validation.Validation;
+import org.keycloak.util.JsonSerialization;
+
+import java.io.InputStream;
+import jakarta.ws.rs.core.MultivaluedMap;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.util.EntityUtils;
+
+/**
+ * @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
+ * Changes for mosparo from
+ * @author <a href="mailto:jakob@schuerz.at">Jakobus Schürz</a>
+ * @version $Revision: 1 $
+ */
+public class RegistrationMosparo implements FormAction, FormActionFactory {
+    public static final String MOSPARO_RESPONSE = "mosparo-response";
+    public static final String MOSPARO_REFERENCE_CATEGORY = "mosparo";
+    public static final String SITE_PUBKEY = "mosparo-public-key";
+    public static final String SITE_UUID = "uuid";
+    public static final String MOSPARO_HOST = "hostname";
+    private static final Logger logger = Logger.getLogger(RegistrationMosparo.class);
+
+    public static final String PROVIDER_ID = "registration-mosparo-action";
+
+    @Override
+    public String getDisplayType() {
+        return "mosparo";
+    }
+
+    @Override
+    public String getReferenceCategory() {
+        return MOSPARO_REFERENCE_CATEGORY;
+    }
+
+    @Override
+    public boolean isConfigurable() {
+        return true;
+    }
+
+    private static AuthenticationExecutionModel.Requirement[] REQUIREMENT_CHOICES = {
+            AuthenticationExecutionModel.Requirement.REQUIRED,
+            AuthenticationExecutionModel.Requirement.DISABLED
+    };
+    @Override
+    public AuthenticationExecutionModel.Requirement[] getRequirementChoices() {
+        return REQUIREMENT_CHOICES;
+    }
+    @Override
+    public void buildPage(FormContext context, LoginFormsProvider form) {
+        AuthenticatorConfigModel captchaConfig = context.getAuthenticatorConfig();
+        String userLanguageTag = context.getSession().getContext().resolveLocale(context.getUser()).toLanguageTag();
+        if (captchaConfig == null || captchaConfig.getConfig() == null
+                || captchaConfig.getConfig().get(SITE_UUID) == null
+                || captchaConfig.getConfig().get(SITE_PUBKEY) == null
+                || captchaConfig.getConfig().get(MOSPARO_HOST) == null
+                ) {
+            form.addError(new FormMessage(null, "Mosparo not configured properly."));
+            return;
+        }
+        String siteUUID = captchaConfig.getConfig().get(SITE_UUID);
+        form.addScript("https://" + getMosparoHostname(captchaConfig) + "/build/mosparo-frontend.js");
+        form.addScript( "var m; " +
+                "window.onload = function(){ " +
+                "m = new mosparo( " +
+                "'mosparo-box'," +
+                " captchaConfig.getConfig().get(MOSPARO_HOST)," +
+                " captchaConfig.getConfig().get(SITE_UUID)," +
+                " captchaConfig.getConfig().get(SITE_PUBKEY)); };");
+    }
+
+    @Override
+    public void validate(ValidationContext context) {
+        MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
+        List<FormMessage> errors = new ArrayList<>();
+        boolean success = false;
+        context.getEvent().detail(Details.REGISTER_METHOD, "form");
+
+        String captcha = formData.getFirst(MOSPARO_RESPONSE);
+        if (!Validation.isBlank(captcha)) {
+            AuthenticatorConfigModel captchaConfig = context.getAuthenticatorConfig();
+            String pubkey = captchaConfig.getConfig().get(SITE_PUBKEY);
+
+            success = validateMosparo(context, success, captcha, pubkey);
+        }
+        if (success) {
+            context.success();
+        } else {
+            errors.add(new FormMessage(null, "Mosparo verification failed."));
+            formData.remove(MOSPARO_RESPONSE);
+            context.error(Errors.INVALID_REGISTRATION);
+            context.validationError(formData, errors);
+            context.excludeOtherErrors();
+            return;
+
+
+        }
+    }
+
+    private String getMosparoHostname(AuthenticatorConfigModel config) {
+			
+				System.out.println(MOSPARO_HOST);
+				return config.getConfig().get(MOSPARO_HOST);
+    }
+
+    protected boolean validateMosparo(ValidationContext context, boolean success, String captcha, String pubkey) {
+        CloseableHttpClient httpClient = context.getSession().getProvider(HttpClientProvider.class).getHttpClient();
+        HttpPost post = new HttpPost("https://" + getMosparoHostname(context.getAuthenticatorConfig()) + "/api/v1/frontend/verification/verify");
+        List<NameValuePair> formparams = new LinkedList<>();
+        formparams.add(new BasicNameValuePair("pubkey", pubkey));
+        formparams.add(new BasicNameValuePair("response", captcha));
+        formparams.add(new BasicNameValuePair("remoteip", context.getConnection().getRemoteAddr()));
+        try {
+            UrlEncodedFormEntity form = new UrlEncodedFormEntity(formparams, "UTF-8");
+            post.setEntity(form);
+            try (CloseableHttpResponse response = httpClient.execute(post)) {
+                InputStream content = response.getEntity().getContent();
+                try {
+                    Map json = JsonSerialization.readValue(content, Map.class);
+                    Object val = json.get("success");
+                    success = Boolean.TRUE.equals(val);
+                } finally {
+                    EntityUtils.consumeQuietly(response.getEntity());
+                }
+            }
+        } catch (Exception e) {
+            ServicesLogger.LOGGER.recaptchaFailed(e);
+        }
+        return success;
+    }
+
+    @Override
+    public void success(FormContext context) {
+
+    }
+
+    @Override
+    public boolean requiresUser() {
+        return false;
+    }
+
+    @Override
+    public boolean configuredFor(KeycloakSession session, RealmModel realm, UserModel user) {
+        return true;
+    }
+
+    @Override
+    public void setRequiredActions(KeycloakSession session, RealmModel realm, UserModel user) {
+
+    }
+
+    @Override
+    public boolean isUserSetupAllowed() {
+        return false;
+    }
+
+
+    @Override
+    public void close() {
+
+    }
+
+    @Override
+    public FormAction create(KeycloakSession session) {
+        return this;
+    }
+
+    @Override
+    public void init(Config.Scope config) {
+
+    }
+
+    @Override
+    public void postInit(KeycloakSessionFactory factory) {
+
+    }
+
+    @Override
+    public String getId() {
+        return PROVIDER_ID;
+    }
+
+    @Override
+    public String getHelpText() {
+        return "Adds mosparo button.  mosparo verify that the entity that is registering is a human.  This can only be used on the internet and must be configured after you add it.";
+    }
+
+    private static final List<ProviderConfigProperty> CONFIG_PROPERTIES = new ArrayList<ProviderConfigProperty>();
+
+    static {
+        ProviderConfigProperty property;
+        property = new ProviderConfigProperty();
+        property.setName(SITE_UUID);
+        property.setLabel("UUID");
+        property.setType(ProviderConfigProperty.STRING_TYPE);
+        property.setHelpText("UUID");
+        CONFIG_PROPERTIES.add(property);
+        property = new ProviderConfigProperty();
+        property.setName(SITE_PUBKEY);
+        property.setLabel("Mosparo Public Key");
+        property.setType(ProviderConfigProperty.STRING_TYPE);
+        property.setHelpText("Mosparo Public Key (Site Key)");
+        CONFIG_PROPERTIES.add(property);
+
+        property = new ProviderConfigProperty();
+        property.setName(MOSPARO_HOST);
+        property.setLabel("Hostname");
+        property.setType(ProviderConfigProperty.STRING_TYPE);
+        property.setHelpText("Hostname mosparo-host");
+        CONFIG_PROPERTIES.add(property);
+    }
+
+
+    @Override
+    public List<ProviderConfigProperty> getConfigProperties() {
+        return CONFIG_PROPERTIES;
+    }
+}

src/main/resources/META-INF/jboss-deployment-structure.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<jboss-deployment-structure>
+    <deployment>
+        <module-alias name="deployment.keycloak-hcaptcha"/>
+        <dependencies>
+            <module name="org.keycloak.keycloak-services"/>
+        </dependencies>
+    </deployment>
+</jboss-deployment-structure>

src/main/resources/META-INF/services/org.keycloak.authentication.FormActionFactory

@@ -0,0 +1 @@
+at.schuerz.keycloak.authenticator.RegistrationMosparo

target/classes/META-INF/jboss-deployment-structure.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<jboss-deployment-structure>
+    <deployment>
+        <module-alias name="deployment.keycloak-hcaptcha"/>
+        <dependencies>
+            <module name="org.keycloak.keycloak-services"/>
+        </dependencies>
+    </deployment>
+</jboss-deployment-structure>

target/classes/META-INF/services/org.keycloak.authentication.FormActionFactory

@@ -0,0 +1 @@
+at.schuerz.keycloak.authenticator.RegistrationMosparo

target/maven-archiver/pom.properties

@@ -0,0 +1,5 @@
+#Generated by Maven
+#Wed Feb 14 17:24:18 CET 2024
+groupId=at.schuerz
+artifactId=keycloak-mosparo
+version=1.0.1

target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

@@ -0,0 +1 @@
+at/schuerz/keycloak/authenticator/RegistrationMosparo.class

target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

@@ -0,0 +1 @@
+/home/jakobus.schuerz/git/keycloak-hcaptcha/src/main/java/at/schuerz.keycloak/authenticator/RegistrationMosparo.java