allow extension points for JSON validation parsing. add filter and va…

…lidator

cas-client-core/src/main/java/org/jasig/cas/client/validation/Cas20ProxyTicketValidator.java

@@ -52,7 +52,7 @@ protected String getUrlSuffix() {
 
     protected void customParseResponse(final String response, final Assertion assertion)
             throws TicketValidationException {
-        final List<String> proxies = XmlUtils.getTextForElements(response, "proxy");
+        final List<String> proxies = parseProxiesFromResponse(response);
 
         if (proxies == null) {
             throw new InvalidProxyChainTicketValidationException(
@@ -85,6 +85,10 @@ protected void customParseResponse(final String response, final Assertion assert
         throw new InvalidProxyChainTicketValidationException("Invalid proxy chain: " + proxies.toString());
     }
 
+    protected List<String> parseProxiesFromResponse(final String response) {
+        return XmlUtils.getTextForElements(response, "proxy");
+    }
+
     public final void setAcceptAnyProxy(final boolean acceptAnyProxy) {
         this.acceptAnyProxy = acceptAnyProxy;
     }

cas-client-core/src/main/java/org/jasig/cas/client/validation/Cas20ServiceTicketValidator.java

@@ -78,14 +78,14 @@ protected String getUrlSuffix() {
     }
 
     protected final Assertion parseResponseFromServer(final String response) throws TicketValidationException {
-        final String error = XmlUtils.getTextForElement(response, "authenticationFailure");
+        final String error = parseAuthenticationFailureFromResponse(response);
 
         if (CommonUtils.isNotBlank(error)) {
             throw new TicketValidationException(error);
         }
 
-        final String principal = XmlUtils.getTextForElement(response, "user");
-        final String proxyGrantingTicketIou = XmlUtils.getTextForElement(response, "proxyGrantingTicket");
+        final String principal = parsePrincipalFromResponse(response);
+        final String proxyGrantingTicketIou = parseProxyGrantingTicketFromResponse(response);
 
         final String proxyGrantingTicket;
         if (CommonUtils.isBlank(proxyGrantingTicketIou) || this.proxyGrantingTicketStorage == null) {
@@ -113,6 +113,18 @@ protected final Assertion parseResponseFromServer(final String response) throws
         return assertion;
     }
 
+    protected String parseProxyGrantingTicketFromResponse(final String response) {
+        return XmlUtils.getTextForElement(response, "proxyGrantingTicket");
+    }
+
+    protected String parsePrincipalFromResponse(final String response) {
+        return XmlUtils.getTextForElement(response, "user");
+    }
+
+    protected String parseAuthenticationFailureFromResponse(final String response) {
+        return XmlUtils.getTextForElement(response, "authenticationFailure");
+    }
+
     /**
      * Default attribute parsing of attributes that look like the following:
      * <cas:attributes>

cas-client-core/src/main/java/org/jasig/cas/client/validation/Cas30JsonProxyReceivingTicketValidationFilter.java

@@ -0,0 +1,33 @@
+/*
+ * Licensed to Jasig under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work
+ * for additional information regarding copyright ownership.
+ * Jasig licenses this file to you 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 the following location:
+ *
+ *   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 org.jasig.cas.client.validation;
+
+/**
+ * Creates either a Cas30JsonServiceTicketValidator to validate tickets.
+ *
+ * @author Misagh Moayyed
+ */
+public class Cas30JsonProxyReceivingTicketValidationFilter extends Cas30ProxyReceivingTicketValidationFilter {
+
+    public Cas30JsonProxyReceivingTicketValidationFilter() {
+        super();
+        this.defaultServiceTicketValidatorClass = Cas30JsonServiceTicketValidator.class;
+        this.defaultProxyTicketValidatorClass = Cas30JsonServiceTicketValidator.class;
+    }
+}

cas-client-core/src/main/java/org/jasig/cas/client/validation/Cas30JsonServiceTicketValidator.java

@@ -0,0 +1,41 @@
+package org.jasig.cas.client.validation;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * This is {@link Cas30JsonServiceTicketValidator}.
+ *
+ * @author Misagh Moayyed
+ */
+public class Cas30JsonServiceTicketValidator extends Cas30ProxyTicketValidator {
+    public Cas30JsonServiceTicketValidator(final String casServerUrlPrefix) {
+        super(casServerUrlPrefix);
+        getCustomParameters().put("format", "JSON");
+    }
+
+    @Override
+    protected List<String> parseProxiesFromResponse(final String response) {
+        return super.parseProxiesFromResponse(response);
+    }
+
+    @Override
+    protected String parseProxyGrantingTicketFromResponse(final String response) {
+        return super.parseProxyGrantingTicketFromResponse(response);
+    }
+
+    @Override
+    protected String parsePrincipalFromResponse(final String response) {
+        return super.parsePrincipalFromResponse(response);
+    }
+
+    @Override
+    protected String parseAuthenticationFailureFromResponse(final String response) {
+        return super.parseAuthenticationFailureFromResponse(response);
+    }
+
+    @Override
+    protected Map<String, Object> extractCustomAttributes(final String xml) {
+        return super.extractCustomAttributes(xml);
+    }
+}