From bce81049aba8eca5afaca2949ba8be3db89a2825 Mon Sep 17 00:00:00 2001
From: Matthias Piepkorn <mpiepk@gmail.com>
Date: Sun, 05 Feb 2017 10:54:12 +0000
Subject: [PATCH] Improve ServiceResponseTest and fix XML response attribute order

---
 src/test/resources/org/keycloak/protocol/cas/cas-response-schema.xsd                                 |   77 +++++++++++++++++++
 src/main/java/org/keycloak/protocol/cas/representations/CASServiceResponseAuthenticationSuccess.java |   20 ++--
 pom.xml                                                                                              |   12 +++
 src/test/java/org/keycloak/protocol/cas/ServiceResponseTest.java                                     |  129 ++++++++++++++++++++------------
 4 files changed, 179 insertions(+), 59 deletions(-)

diff --git a/pom.xml b/pom.xml
index 2d52b17..6d338c7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -93,6 +93,18 @@
             <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.xmlunit</groupId>
+            <artifactId>xmlunit-core</artifactId>
+            <version>2.3.0</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.jayway.jsonpath</groupId>
+            <artifactId>json-path</artifactId>
+            <version>2.2.0</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
     <build>
         <plugins>
diff --git a/src/main/java/org/keycloak/protocol/cas/representations/CASServiceResponseAuthenticationSuccess.java b/src/main/java/org/keycloak/protocol/cas/representations/CASServiceResponseAuthenticationSuccess.java
index 30a37c6..3ef7754 100644
--- a/src/main/java/org/keycloak/protocol/cas/representations/CASServiceResponseAuthenticationSuccess.java
+++ b/src/main/java/org/keycloak/protocol/cas/representations/CASServiceResponseAuthenticationSuccess.java
@@ -10,12 +10,12 @@
 @XmlAccessorType(XmlAccessType.FIELD)
 public class CASServiceResponseAuthenticationSuccess {
     private String user;
+    @XmlJavaTypeAdapter(AttributesMapAdapter.class)
+    private Map<String, Object> attributes;
     private String proxyGrantingTicket;
     @XmlElementWrapper
     @XmlElement(name="proxy")
     private List<String> proxies;
-    @XmlJavaTypeAdapter(AttributesMapAdapter.class)
-    private Map<String, Object> attributes;
 
     public String getUser() {
         return this.user;
@@ -23,6 +23,14 @@
 
     public void setUser(final String user) {
         this.user = user;
+    }
+
+    public Map<String, Object> getAttributes() {
+        return this.attributes;
+    }
+
+    public void setAttributes(final Map<String, Object> attributes) {
+        this.attributes = attributes;
     }
 
     public String getProxyGrantingTicket() {
@@ -39,13 +47,5 @@
 
     public void setProxies(final List<String> proxies) {
         this.proxies = proxies;
-    }
-
-    public Map<String, Object> getAttributes() {
-        return this.attributes;
-    }
-
-    public void setAttributes(final Map<String, Object> attributes) {
-        this.attributes = attributes;
     }
 }
diff --git a/src/test/java/org/keycloak/protocol/cas/ServiceResponseTest.java b/src/test/java/org/keycloak/protocol/cas/ServiceResponseTest.java
index 4e07135..b8ebe5a 100644
--- a/src/test/java/org/keycloak/protocol/cas/ServiceResponseTest.java
+++ b/src/test/java/org/keycloak/protocol/cas/ServiceResponseTest.java
@@ -1,59 +1,35 @@
 package org.keycloak.protocol.cas;
 
+import com.jayway.jsonpath.JsonPath;
+import com.sun.xml.bind.v2.util.FatalAdapter;
 import org.junit.Test;
 import org.keycloak.protocol.cas.representations.CASErrorCode;
 import org.keycloak.protocol.cas.representations.CASServiceResponse;
 import org.keycloak.protocol.cas.utils.ServiceResponseHelper;
 import org.keycloak.protocol.cas.utils.ServiceResponseMarshaller;
+import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+import org.xml.sax.helpers.DefaultHandler;
+import org.xmlunit.xpath.JAXPXPathEngine;
+import org.xmlunit.xpath.XPathEngine;
 
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.Map;
+import javax.xml.XMLConstants;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.validation.Schema;
+import javax.xml.validation.SchemaFactory;
+import java.io.ByteArrayInputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.*;
 
 import static org.junit.Assert.assertEquals;
 
 public class ServiceResponseTest {
-    private static final String EXPECTED_JSON_SUCCESS = "{\n" +
-            "  \"serviceResponse\" : {\n" +
-            "    \"authenticationSuccess\" : {\n" +
-            "      \"user\" : \"username\",\n" +
-            "      \"proxyGrantingTicket\" : \"PGTIOU-test\",\n" +
-            "      \"proxies\" : [ \"https://proxy1/pgtUrl\", \"https://proxy2/pgtUrl\" ],\n" +
-            "      \"attributes\" : {\n" +
-            "        \"string\" : \"abc\",\n" +
-            "        \"list\" : [ \"a\", \"b\" ],\n" +
-            "        \"int\" : 123\n" +
-            "      }\n" +
-            "    }\n" +
-            "  }\n" +
-            "}";
-    private static final String EXPECTED_XML_SUCCESS = "<cas:serviceResponse xmlns:cas=\"http://www.yale.edu/tp/cas\">\n" +
-            "    <cas:authenticationSuccess>\n" +
-            "        <cas:user>username</cas:user>\n" +
-            "        <cas:proxyGrantingTicket>PGTIOU-test</cas:proxyGrantingTicket>\n" +
-            "        <cas:proxies>\n" +
-            "            <cas:proxy>https://proxy1/pgtUrl</cas:proxy>\n" +
-            "            <cas:proxy>https://proxy2/pgtUrl</cas:proxy>\n" +
-            "        </cas:proxies>\n" +
-            "        <cas:attributes>\n" +
-            "            <cas:string>abc</cas:string>\n" +
-            "            <cas:list>a</cas:list>\n" +
-            "            <cas:list>b</cas:list>\n" +
-            "            <cas:int>123</cas:int>\n" +
-            "        </cas:attributes>\n" +
-            "    </cas:authenticationSuccess>\n" +
-            "</cas:serviceResponse>";
-    private static final String EXPECTED_JSON_FAILURE = "{\n" +
-            "  \"serviceResponse\" : {\n" +
-            "    \"authenticationFailure\" : {\n" +
-            "      \"code\" : \"INVALID_REQUEST\",\n" +
-            "      \"description\" : \"Error description\"\n" +
-            "    }\n" +
-            "  }\n" +
-            "}";
-    private static final String EXPECTED_XML_FAILURE = "<cas:serviceResponse xmlns:cas=\"http://www.yale.edu/tp/cas\">\n" +
-            "    <cas:authenticationFailure code=\"INVALID_REQUEST\">Error description</cas:authenticationFailure>\n" +
-            "</cas:serviceResponse>";
+    private final XPathEngine xpath = new JAXPXPathEngine();
+
+    public ServiceResponseTest() {
+        xpath.setNamespaceContext(Collections.singletonMap("cas", "http://www.yale.edu/tp/cas"));
+    }
 
     @Test
     public void testSuccessResponse() throws Exception {
@@ -62,18 +38,73 @@
         attributes.put("int", 123);
         attributes.put("string", "abc");
 
+        List<String> proxies = Arrays.asList("https://proxy1/pgtUrl", "https://proxy2/pgtUrl");
         CASServiceResponse response = ServiceResponseHelper.createSuccess("username", attributes, "PGTIOU-test",
-                Arrays.asList("https://proxy1/pgtUrl", "https://proxy2/pgtUrl"));
+                proxies);
 
-        assertEquals(EXPECTED_JSON_SUCCESS, ServiceResponseMarshaller.marshalJson(response));
-        assertEquals(EXPECTED_XML_SUCCESS, ServiceResponseMarshaller.marshalXml(response));
+        // Build and validate JSON response
+
+        String json = ServiceResponseMarshaller.marshalJson(response);
+        assertEquals("username", JsonPath.read(json, "$.serviceResponse.authenticationSuccess.user"));
+        assertEquals(attributes.get("list"), JsonPath.read(json, "$.serviceResponse.authenticationSuccess.attributes.list"));
+        assertEquals(attributes.get("int"), JsonPath.read(json, "$.serviceResponse.authenticationSuccess.attributes.int"));
+        assertEquals(attributes.get("string"), JsonPath.read(json, "$.serviceResponse.authenticationSuccess.attributes.string"));
+        assertEquals("PGTIOU-test", JsonPath.read(json, "$.serviceResponse.authenticationSuccess.proxyGrantingTicket"));
+        assertEquals(proxies, JsonPath.read(json, "$.serviceResponse.authenticationSuccess.proxies"));
+
+        // Build and validate XML response
+
+        String xml = ServiceResponseMarshaller.marshalXml(response);
+        Document doc = parseAndValidate(xml);
+        assertEquals("username", xpath.evaluate("/cas:serviceResponse/cas:authenticationSuccess/cas:user", doc));
+        int idx = 0;
+        for (Node node : xpath.selectNodes("/cas:serviceResponse/cas:authenticationSuccess/cas:attributes/cas:list", doc)) {
+            assertEquals(((List)attributes.get("list")).get(idx), node.getTextContent());
+            idx++;
+        }
+        assertEquals(((List)attributes.get("list")).size(), idx);
+        assertEquals(attributes.get("int").toString(), xpath.evaluate("/cas:serviceResponse/cas:authenticationSuccess/cas:attributes/cas:int", doc));
+        assertEquals(attributes.get("string").toString(), xpath.evaluate("/cas:serviceResponse/cas:authenticationSuccess/cas:attributes/cas:string", doc));
+
+        assertEquals("PGTIOU-test", xpath.evaluate("/cas:serviceResponse/cas:authenticationSuccess/cas:proxyGrantingTicket", doc));
+        idx = 0;
+        for (Node node : xpath.selectNodes("/cas:serviceResponse/cas:authenticationSuccess/cas:proxies/cas:proxy", doc)) {
+            assertEquals(proxies.get(idx), node.getTextContent());
+            idx++;
+        }
+        assertEquals(proxies.size(), idx);
     }
 
     @Test
     public void testErrorResponse() throws Exception {
         CASServiceResponse response = ServiceResponseHelper.createFailure(CASErrorCode.INVALID_REQUEST, "Error description");
 
-        assertEquals(EXPECTED_JSON_FAILURE, ServiceResponseMarshaller.marshalJson(response));
-        assertEquals(EXPECTED_XML_FAILURE, ServiceResponseMarshaller.marshalXml(response));
+        // Build and validate JSON response
+
+        String json = ServiceResponseMarshaller.marshalJson(response);
+        assertEquals(CASErrorCode.INVALID_REQUEST.name(), JsonPath.read(json, "$.serviceResponse.authenticationFailure.code"));
+        assertEquals("Error description", JsonPath.read(json, "$.serviceResponse.authenticationFailure.description"));
+
+        // Build and validate XML response
+
+        String xml = ServiceResponseMarshaller.marshalXml(response);
+        Document doc = parseAndValidate(xml);
+        assertEquals(CASErrorCode.INVALID_REQUEST.name(), xpath.evaluate("/cas:serviceResponse/cas:authenticationFailure/@code", doc));
+        assertEquals("Error description", xpath.evaluate("/cas:serviceResponse/cas:authenticationFailure", doc));
+    }
+
+    /**
+     * Parse XML document and validate against CAS schema
+     */
+    private Document parseAndValidate(String xml) throws Exception {
+        Schema schema = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI)
+                .newSchema(getClass().getResource("cas-response-schema.xsd"));
+
+        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+        factory.setSchema(schema);
+        factory.setNamespaceAware(true);
+        DocumentBuilder builder = factory.newDocumentBuilder();
+        builder.setErrorHandler(new FatalAdapter(new DefaultHandler()));
+        return builder.parse(new ByteArrayInputStream(xml.getBytes(StandardCharsets.UTF_8)));
     }
 }
diff --git a/src/test/resources/org/keycloak/protocol/cas/cas-response-schema.xsd b/src/test/resources/org/keycloak/protocol/cas/cas-response-schema.xsd
new file mode 100644
index 0000000..be8aa9e
--- /dev/null
+++ b/src/test/resources/org/keycloak/protocol/cas/cas-response-schema.xsd
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cas="http://www.yale.edu/tp/cas" targetNamespace="http://www.yale.edu/tp/cas" elementFormDefault="qualified" attributeFormDefault="unqualified">
+    <xs:annotation>
+        <xs:documentation>The following is the schema for the Central Authentication Service (CAS) version 3.0 protocol response. This covers the responses for the following servlets: /serviceValidate, /proxyValidate, /p3/serviceValidate, /p3/proxyValidate, /proxy This specification is subject to change.</xs:documentation>
+    </xs:annotation>
+    <xs:element name="serviceResponse" type="cas:ServiceResponseType"></xs:element>
+    <xs:complexType name="ServiceResponseType">
+        <xs:choice>
+            <xs:element name="authenticationSuccess" type="cas:AuthenticationSuccessType"></xs:element>
+            <xs:element name="authenticationFailure" type="cas:AuthenticationFailureType"></xs:element>
+            <xs:element name="proxySuccess" type="cas:ProxySuccessType"></xs:element>
+            <xs:element name="proxyFailure" type="cas:ProxyFailureType"></xs:element>
+        </xs:choice>
+    </xs:complexType>
+    <xs:complexType name="AuthenticationSuccessType">
+        <xs:sequence>
+            <xs:element name="user" type="xs:string"></xs:element>
+            <xs:element name="attributes" type="cas:AttributesType" minOccurs="0"></xs:element>
+            <xs:element name="proxyGrantingTicket" type="xs:string" minOccurs="0"></xs:element>
+            <xs:element name="proxies" type="cas:ProxiesType" minOccurs="0"></xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="ProxiesType">
+        <xs:sequence>
+            <xs:element name="proxy" type="xs:string" maxOccurs="unbounded"></xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="AuthenticationFailureType">
+        <xs:simpleContent>
+            <xs:extension base="xs:string">
+                <xs:attribute name="code" type="xs:string" use="required"></xs:attribute>
+            </xs:extension>
+        </xs:simpleContent>
+    </xs:complexType>
+    <xs:complexType name="ProxySuccessType">
+        <xs:sequence>
+            <xs:element name="proxyTicket" type="xs:string"></xs:element>
+        </xs:sequence>
+    </xs:complexType>
+    <xs:complexType name="ProxyFailureType">
+        <xs:simpleContent>
+            <xs:extension base="xs:string">
+                <xs:attribute name="code" type="xs:string" use="required"></xs:attribute>
+            </xs:extension>
+        </xs:simpleContent>
+    </xs:complexType>
+    <xs:complexType name="AttributesType">
+        <xs:sequence>
+            <!-- the protocol documentation is unclear about that part; sometimes the meta-attributes are
+                 required, sometimes not. For now we don't support them. -->
+            <!--<xs:element name="authenticationDate" type="xs:dateTime" minOccurs="1" maxOccurs="1"></xs:element>-->
+            <!--<xs:element name="longTermAuthenticationRequestTokenUsed" type="xs:boolean" minOccurs="1" maxOccurs="1">-->
+                <!--<xs:annotation>-->
+                    <!--<xs:documentation>true if a long-term (Remember-Me) token was used</xs:documentation>-->
+                <!--</xs:annotation>-->
+            <!--</xs:element>-->
+            <!--<xs:element name="isFromNewLogin" type="xs:boolean" minOccurs="1" maxOccurs="1">-->
+                <!--<xs:annotation>-->
+                    <!--<xs:documentation>true if this was from a new, interactive login. If login was from a non-interactive login (e.g. Remember-Me), this value is false or might be omitted.</xs:documentation>-->
+                <!--</xs:annotation>-->
+            <!--</xs:element>-->
+
+            <!-- this part of the offical schema is, unfortunately, invalid -->
+            <!--<xs:element name="memberOf" type="xs:string" minOccurs="0" maxOccurs="unbounded">-->
+                <!--<xs:annotation>-->
+                    <!--<xs:documentation>One or many elements describing the units the user is member in. E.g. LDAP format values.</xs:documentation>-->
+                <!--</xs:annotation>-->
+            <!--</xs:element>-->
+
+            <xs:any minOccurs="0" maxOccurs="unbounded" processContents="lax">
+                <xs:annotation>
+                    <xs:documentation>Any user specific attribute elements.</xs:documentation>
+                </xs:annotation>
+            </xs:any>
+        </xs:sequence>
+    </xs:complexType>
+</xs:schema>

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