Started with test decision JSON objects.
[policy/xacml-pdp.git] / applications / common / src / test / java / org / onap / policy / pdp / xacml / application / common / XacmlPolicyUtilsTest.java
diff --git a/applications/common/src/test/java/org/onap/policy/pdp/xacml/application/common/XacmlPolicyUtilsTest.java b/applications/common/src/test/java/org/onap/policy/pdp/xacml/application/common/XacmlPolicyUtilsTest.java
new file mode 100644 (file)
index 0000000..57800d9
--- /dev/null
@@ -0,0 +1,264 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.pdp.xacml.application.common;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatCode;
+
+import com.att.research.xacml.api.XACML3;
+import com.att.research.xacml.util.XACMLPolicyWriter;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Properties;
+
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AnyOfType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.EffectType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.MatchType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.ObjectFactory;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicySetType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicyType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.RuleType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.TargetType;
+
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Utility methods for storing policies to disk and updating Properties objects
+ * that reference policies.
+ *
+ * @author pameladragosh
+ *
+ */
+public class XacmlPolicyUtilsTest {
+    private static final Logger LOGGER = LoggerFactory.getLogger(XacmlPolicyUtilsTest.class);
+
+    static Properties properties;
+
+    static PolicySetType rootPolicy = XacmlPolicyUtils.createEmptyPolicySet("root", XACML3.ID_POLICY_FIRST_APPLICABLE);
+
+    static Path rootPath;
+
+    static PolicyType policy1 = XacmlPolicyUtils.createEmptyPolicy("policy1", XACML3.ID_RULE_DENY_UNLESS_PERMIT);
+    static PolicyType policy2 = XacmlPolicyUtils.createEmptyPolicy("policy2", XACML3.ID_RULE_DENY_UNLESS_PERMIT);
+    static PolicyType policy3 = XacmlPolicyUtils.createEmptyPolicy("policy3", XACML3.ID_RULE_DENY_UNLESS_PERMIT);
+    static PolicyType policy4 = XacmlPolicyUtils.createEmptyPolicy("policy4", XACML3.ID_RULE_DENY_UNLESS_PERMIT);
+
+    static PolicySetType policySet5 = XacmlPolicyUtils.createEmptyPolicySet(
+            "policyset1", XACML3.ID_POLICY_FIRST_APPLICABLE);
+
+    static Path path1;
+    static Path path2;
+    static Path path3;
+    static Path path4;
+
+    static Path policySetPath;
+
+    /**
+     * Temporary folder where we will store newly created policies.
+     */
+    @ClassRule
+    public static TemporaryFolder policyFolder = new TemporaryFolder();
+
+    /**
+     * Setup the JUnit tests by finishing creating the policies and
+     * writing them out to the temporary folder.
+     *
+     * @throws Exception thrown
+     */
+    @BeforeClass
+    public static void setUp() throws Exception {
+        assertThatCode(() -> {
+            //
+            // Load our test property object
+            //
+            try (InputStream is = new FileInputStream("src/test/resources/test.properties")) {
+                properties = new Properties();
+                properties.load(is);
+            }
+            //
+            // Save root policy
+            //
+            File rootFile = policyFolder.newFile("root.xml");
+            LOGGER.info("Creating Root Policy {}", rootFile.getAbsolutePath());
+            rootPath = XACMLPolicyWriter.writePolicyFile(rootFile.toPath(), rootPolicy);
+            //
+            // Create policies - Policies 1 and 2 will become references in the
+            // root policy. While Policies 3 and 4 will become references in the
+            // soon to be created PolicySet 5 below.
+            //
+            path1 = createPolicyContents(policy1, "resource1");
+            LOGGER.info(new String(Files.readAllBytes(path1)));
+            path2 = createPolicyContents(policy2, "resource2");
+            LOGGER.info(new String(Files.readAllBytes(path2)));
+            path3 = createPolicyContents(policy3, "resourc31");
+            LOGGER.info(new String(Files.readAllBytes(path3)));
+            path4 = createPolicyContents(policy4, "resource4");
+            LOGGER.info(new String(Files.readAllBytes(path4)));
+            //
+            // Create our PolicySet
+            //
+            policySet5.setPolicySetId("policyset5");
+            policySet5.setTarget(new TargetType());
+            policySet5.setPolicyCombiningAlgId(XACML3.ID_POLICY_FIRST_APPLICABLE.stringValue());
+            ObjectFactory factory = new ObjectFactory();
+            //
+            // Add Policies 3 and 4 to the PolicySet
+            //
+            policySet5.getPolicySetOrPolicyOrPolicySetIdReference().add(factory.createPolicy(policy1));
+            policySet5.getPolicySetOrPolicyOrPolicySetIdReference().add(factory.createPolicy(policy2));
+            assertThat(policySet5.getPolicySetOrPolicyOrPolicySetIdReference()).hasSize(2);
+            //
+            // Save that to disk
+            //
+            File policySetFile = policyFolder.newFile("policySet5.xml");
+            LOGGER.info("Creating PolicySet {}", policySetFile.getAbsolutePath());
+            policySetPath = XACMLPolicyWriter.writePolicyFile(policySetFile.toPath(), policySet5);
+
+        }).doesNotThrowAnyException();
+    }
+
+    /**
+     * Helper method that creates a very simple Policy and Rule and saves it to disk.
+     *
+     * @param policy Policy to store contents in
+     * @param resource A simple resource id for the Target
+     * @return Path object of the policy
+     * @throws IOException If unable to write to disk
+     */
+    private static Path createPolicyContents(PolicyType policy, String resource) throws IOException {
+        //
+        // Create The Match
+        //
+        MatchType matchPolicyId = ToscaPolicyConverterUtils.buildMatchTypeDesignator(
+                XACML3.ID_FUNCTION_STRING_EQUAL,
+                resource,
+                XACML3.ID_DATATYPE_STRING,
+                XACML3.ID_RESOURCE_RESOURCE_ID,
+                XACML3.ID_ATTRIBUTE_CATEGORY_RESOURCE);
+        //
+        // This is our outer AnyOf - which is an OR
+        //
+        AnyOfType anyOf = new AnyOfType();
+        //
+        // Create AllOf (AND) of just Policy Id
+        //
+        anyOf.getAllOf().add(ToscaPolicyConverterUtils.buildAllOf(matchPolicyId));
+        TargetType target = new TargetType();
+        target.getAnyOf().add(anyOf);
+        policy.setTarget(target);
+        RuleType rule = new RuleType();
+        rule.setRuleId(policy.getPolicyId() + ":rule");
+        rule.setEffect(EffectType.PERMIT);
+        rule.setTarget(new TargetType());
+        //
+        // Add the rule to the policy
+        //
+        policy.getCombinerParametersOrRuleCombinerParametersOrVariableDefinition().add(rule);
+        //
+        // Save it to disk
+        //
+        File file = policyFolder.newFile(policy.getPolicyId() + ".xml");
+        LOGGER.info("Creating Policy {}", file.getAbsolutePath());
+        return XACMLPolicyWriter.writePolicyFile(file.toPath(), policy);
+    }
+
+    @Test
+    public void testUpdatingPolicies() {
+        assertThatCode(() -> {
+            //
+            // Just update root and policies
+            //
+            XacmlPolicyUtils.addPoliciesToXacmlRootPolicy(rootPolicy, policy1, policy2);
+            //
+            // Make sure it is correct
+            //
+            assertThat(rootPolicy.getPolicySetOrPolicyOrPolicySetIdReference()).hasSize(2);
+            //
+            // Save to disk
+            //
+            try (OutputStream os = new ByteArrayOutputStream()) {
+                XACMLPolicyWriter.writePolicyFile(os, rootPolicy);
+                LOGGER.debug("New Root Policy:{}{}", System.lineSeparator(), os.toString());
+            }
+            //
+            // Just update root and PolicySet
+            //
+            XacmlPolicyUtils.addPolicySetsToXacmlRootPolicy(rootPolicy, policySet5);
+            try (OutputStream os = new ByteArrayOutputStream()) {
+                XACMLPolicyWriter.writePolicyFile(os, rootPolicy);
+                LOGGER.debug("New Root Policy:{}{}", System.lineSeparator(), os.toString());
+            }
+        }).doesNotThrowAnyException();
+    }
+
+    @Test
+    public void testRemovingProperties() {
+        //
+        // Dump what we are starting with
+        //
+        XacmlPolicyUtils.debugDumpPolicyProperties(properties, LOGGER);
+        //
+        // Remove referenced policies
+        //
+        Path ref = Paths.get("src/test/resources/ref1.xml");
+        XacmlPolicyUtils.removeReferencedPolicy(properties, ref);
+        XacmlPolicyUtils.debugDumpPolicyProperties(properties, LOGGER);
+        assertThat(properties.getProperty("refstart1.file")).isNullOrEmpty();
+
+        ref = Paths.get("src/test/resources/ref2.xml");
+        XacmlPolicyUtils.removeReferencedPolicy(properties, ref);
+        XacmlPolicyUtils.debugDumpPolicyProperties(properties, LOGGER);
+        assertThat(properties.getProperty("refstart2.file")).isNullOrEmpty();
+
+        //
+        // Test one that isn't in there
+        //
+        ref = Paths.get("src/test/resources/NotThere.xml");
+        XacmlPolicyUtils.removeReferencedPolicy(properties, ref);
+        XacmlPolicyUtils.debugDumpPolicyProperties(properties, LOGGER);
+        assertThat(properties.getProperty("refstart3.file")).isNotBlank();
+
+        ref = Paths.get("src/test/resources/ref3.xml");
+        XacmlPolicyUtils.removeReferencedPolicy(properties, ref);
+        XacmlPolicyUtils.debugDumpPolicyProperties(properties, LOGGER);
+        assertThat(properties.getProperty("refstart3.file")).isNullOrEmpty();
+
+        ref = Paths.get("src/test/resources/ref4.xml");
+        XacmlPolicyUtils.removeReferencedPolicy(properties, ref);
+        XacmlPolicyUtils.debugDumpPolicyProperties(properties, LOGGER);
+        assertThat(properties.getProperty("refstart4.file")).isNullOrEmpty();
+    }
+}