Initial OpenECOMP policy/engine commit
[policy/engine.git] / ECOMP-PAP-REST / src / main / java / org / openecomp / policy / pap / xacml / rest / components / Policy.java
diff --git a/ECOMP-PAP-REST/src/main/java/org/openecomp/policy/pap/xacml/rest/components/Policy.java b/ECOMP-PAP-REST/src/main/java/org/openecomp/policy/pap/xacml/rest/components/Policy.java
new file mode 100644 (file)
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+/*-
+ * ============LICENSE_START=======================================================
+ * ECOMP-PAP-REST
+ * ================================================================================
+ * Copyright (C) 2017 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.policy.pap.xacml.rest.components;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.json.Json;
+import javax.json.JsonReader;
+
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeDesignatorType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.AttributeValueType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.MatchType;
+import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicyType;
+
+import org.apache.commons.io.FilenameUtils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.json.JSONObject;
+import org.openecomp.policy.pap.xacml.rest.adapters.PolicyRestAdapter;
+import org.openecomp.policy.rest.XACMLRestProperties;
+
+import org.openecomp.policy.xacml.api.XACMLErrorConstants;
+import com.att.research.xacml.std.IdentifierImpl;
+import org.openecomp.policy.xacml.util.XACMLPolicyWriter;
+import com.att.research.xacml.util.XACMLProperties;
+import com.att.research.xacmlatt.pdp.policy.PolicyDef;
+import com.att.research.xacmlatt.pdp.policy.dom.DOMPolicyDef;
+
+import org.openecomp.policy.common.logging.eelf.MessageCodes;
+import org.openecomp.policy.common.logging.eelf.PolicyLogger;
+import org.openecomp.policy.common.logging.flexlogger.FlexLogger; 
+import org.openecomp.policy.common.logging.flexlogger.Logger;
+
+public abstract class Policy {
+
+       /**
+        * Common Fields
+        */
+       public static final String GET_INT_TYPE = "Integer";
+       public static final String GET_STRING_TYPE = "String";
+
+       public static final String ECOMPID = "ECOMPName";
+       public static final String CONFIGID = "ConfigName";
+       public static final String CLOSEDLOOPID = "ServiceType";
+       
+       public static final String CONFIG_POLICY = "Config";
+       public static final String ACTION_POLICY = "Action";
+       public static final String DECISION_POLICY = "Decision";
+
+       protected String policyName = null;
+       private static final Logger logger = FlexLogger.getLogger(Policy.class);
+       
+       boolean isValidForm = true;
+       
+       private Path finalPolicyPath = null;
+       
+       private boolean preparedToSave = false;
+       
+       private boolean policyExists = false;
+       
+       public Path getFinalPolicyPath() {
+               return finalPolicyPath;
+       }
+
+       public void setFinalPolicyPath(Path finalPolicyPath) {
+               this.finalPolicyPath = finalPolicyPath;
+       }
+
+               // Constants Used in XML Creation
+               public static final String CATEGORY_RECIPIENT_SUBJECT = "urn:oasis:names:tc:xacml:1.0:subject-category:recipient-subject";
+               public static final String CATEGORY_RESOURCE = "urn:oasis:names:tc:xacml:3.0:attribute-category:resource";
+               public static final String CATEGORY_ACTION = "urn:oasis:names:tc:xacml:3.0:attribute-category:action";
+               public static final String CATEGORY_ACCESS_SUBJECT = "urn:oasis:names:tc:xacml:1.0:subject-category:access-subject";
+               public static final String ACTION_ID = "urn:oasis:names:tc:xacml:1.0:action:action-id";
+               public static final String SUBJECT_ID = "urn:oasis:names:tc:xacml:1.0:subject:subject-id";
+               public static final String RESOURCE_ID = "urn:oasis:names:tc:xacml:1.0:resource:resource-id";
+               public static final String FUNTION_INTEGER_ONE_AND_ONLY = "urn:oasis:names:tc:xacml:1.0:function:integer-one-and-only";
+               public static final String FUNCTION_STRING_ONE_AND_ONLY = "urn:oasis:names:tc:xacml:1.0:function:string-one-and-only";
+               public static final String FUNCTION_BOOLEAN_ONE_AND_ONLY = "urn:oasis:names:tc:xacml:1.0:function:boolean-one-and-only";
+               public static final String FUNCTION_STRING_EQUAL = "urn:oasis:names:tc:xacml:1.0:function:string-equal";
+               public static final String FUNCTION_STRING_REGEX_MATCH = "org.openecomp.function.regex-match";
+               public static final String FUNCTION_STRING_EQUAL_IGNORE = "urn:oasis:names:tc:xacml:3.0:function:string-equal-ignore-case";
+               public static final String INTEGER_DATATYPE = "http://www.w3.org/2001/XMLSchema#integer";
+               public static final String BOOLEAN_DATATYPE = "http://www.w3.org/2001/XMLSchema#boolean";
+               public static final String STRING_DATATYPE = "http://www.w3.org/2001/XMLSchema#string";
+               public static final String URI_DATATYPE = "http://www.w3.org/2001/XMLSchema#anyURI";
+               public static final String RULE_VARIABLE = "var:";
+               public static final String EMPTY_STRING = "";
+               private static final String String = null;
+               
+               public static String CONFIG_HOME = null;
+               public static String ACTION_HOME = null;
+               public static String CONFIG_URL = null;
+               
+               protected Map<String, String> performer = new HashMap<String, String>();
+               
+               private static String actionHome = null;
+               private static String configHome = null;
+
+               public PolicyRestAdapter policyAdapter = null;
+               String ruleID = "";
+               
+               public Policy() {
+                       CONFIG_HOME = getConfigHome();
+                       ACTION_HOME = getActionHome();
+                       CONFIG_URL = "$URL";
+                       performer.put("PDP", "PDPAction");
+                       performer.put("PEP", "PEPAction");
+               }
+
+               //Each policy type seems to either use policyData or data field policy adapter when
+               //getting the xml to save the policy. Instead of keep this hardcoded in the save method,
+               //this method makes it usable outside.
+               /**
+                * Return the data field of the PolicyAdapter that will be used when saving this policy
+                * with the savePolicies method.
+                * @return Either the PolicyAdapter.getData() or PolicyAdapter.getPolicyData()
+                */
+               public abstract Object getCorrectPolicyDataObject();
+               public abstract Map<String, String>  savePolicies() throws Exception;
+               
+               //This is the method for preparing the policy for saving.  We have broken it out
+               //separately because the fully configured policy is used for multiple things
+               public abstract boolean prepareToSave() throws Exception;
+
+               
+               // create match for ecomp and config name
+               protected MatchType createMatch(String key, String value) {
+                       MatchType match = new MatchType();
+
+                       AttributeValueType attributeValue = new AttributeValueType();
+                       attributeValue.setDataType(STRING_DATATYPE);
+                       attributeValue.getContent().add(value);
+                       match.setAttributeValue(attributeValue);
+                       AttributeDesignatorType attributeDesignator = new AttributeDesignatorType();
+                       URI uri = null;
+                       try {
+                               uri = new URI(key);
+                       } catch (URISyntaxException e) {
+                               e.printStackTrace();
+                       }
+                       attributeDesignator.setCategory(CATEGORY_ACCESS_SUBJECT);
+                       attributeDesignator.setDataType(STRING_DATATYPE);
+                       attributeDesignator.setAttributeId(new IdentifierImpl(uri).stringValue());
+                       match.setAttributeDesignator(attributeDesignator);
+                       match.setMatchId(FUNCTION_STRING_REGEX_MATCH);
+                       return match;
+               }
+               
+               // Creating the match for dynamically added components.
+               protected MatchType createDynamicMatch(String key, String value) {
+                       MatchType dynamicMatch = new MatchType();
+                       AttributeValueType dynamicAttributeValue = new AttributeValueType();
+                       //Attribute attribute = findAttributeByAttributeId(key);
+                       String dataType = null;
+       //              if (value.matches("[0-9]+")) {
+       //                      dataType = INTEGER_DATATYPE;
+       //              } else {
+       //                      dataType = STRING_DATATYPE;
+       //              }
+                       dataType = STRING_DATATYPE;
+                       dynamicAttributeValue.setDataType(dataType);
+                       dynamicAttributeValue.getContent().add(value);
+                       dynamicMatch.setAttributeValue(dynamicAttributeValue);
+
+                       AttributeDesignatorType dynamicAttributeDesignator = new AttributeDesignatorType();
+
+                       URI dynamicURI = null;
+                       try {
+                               dynamicURI = new URI(key);
+                       } catch (URISyntaxException e) {
+                               e.printStackTrace();// log msg
+                       }
+                       dynamicAttributeDesignator.setCategory(CATEGORY_RESOURCE);
+                       dynamicAttributeDesignator.setDataType(dataType);
+                       dynamicAttributeDesignator.setAttributeId(new IdentifierImpl(dynamicURI).stringValue());
+                       dynamicMatch.setAttributeDesignator(dynamicAttributeDesignator);
+                       dynamicMatch.setMatchId(FUNCTION_STRING_REGEX_MATCH);
+
+                       return dynamicMatch;
+               }
+
+               //validation for numeric
+               protected boolean isNumeric(String str)
+               {
+                       for (char c : str.toCharArray())
+                       {
+                               if (!Character.isDigit(c)) return false;
+                       }
+                       return true;
+               }
+               
+               // Validation for json.
+               protected static boolean isJSONValid(String data) {
+                       try {
+                               new JSONObject(data);
+                               InputStream stream = new ByteArrayInputStream(data.getBytes(StandardCharsets.UTF_8));
+                               JsonReader jsonReader = Json.createReader(stream);
+                               System.out.println("Json Value is: " + jsonReader.read().toString() );
+                       } catch (Exception e) {
+                               return false;
+                       }
+                       return true;
+               }
+               
+               //  the Policy Name as Unique One throws error
+               protected Path getNextFilename(Path parent, String policyType, String polcyFileName, Integer version) {
+                       policyType = FilenameUtils.removeExtension(policyType);
+                       polcyFileName = FilenameUtils.removeExtension(polcyFileName);
+                       Path newFile = null;
+                       String policyDir = EMPTY_STRING;
+                       String absolutePath = parent.toString();
+                       if (absolutePath != null && !absolutePath.equals(EMPTY_STRING)) {
+                               policyDir = absolutePath.substring(absolutePath.lastIndexOf("\\") + 1, absolutePath.length());
+                               if (policyDir == null || policyDir.equals(EMPTY_STRING)) {
+                                       policyDir = absolutePath.substring(absolutePath.lastIndexOf("/") + 1, absolutePath.length());
+                               }
+                       }
+
+                       String fileName = "default";
+                       if (policyDir != null && !policyDir.equals(EMPTY_STRING)) {
+                               fileName = policyType + "_" + String.format(polcyFileName) + "." + version + ".xml";
+                       } 
+                       if (fileName != null) {
+                               newFile = Paths.get(parent.toString(), fileName);
+                       }
+                       if (Files.notExists(newFile)) {
+                               return newFile;
+                       }
+                       return null;
+               }
+               
+               protected Path getNextLoopFilename(Path parentPath, String policyType,
+                               String policyConfigType, String policyFileName, Integer version) {
+                       policyType = FilenameUtils.removeExtension(policyType);
+                       policyConfigType = FilenameUtils.removeExtension(policyConfigType);
+                       policyFileName = FilenameUtils.removeExtension(policyFileName);
+                       Path newFile = null;
+                       String policyDir = EMPTY_STRING;
+                       String absolutePath = parentPath.toString();
+                       if (absolutePath != null && !absolutePath.equals(EMPTY_STRING)) {
+                               policyDir = absolutePath.substring(absolutePath.lastIndexOf("\\") + 1, absolutePath.length());
+                               if (policyDir == null || policyDir.equals(EMPTY_STRING)) {
+                                       policyDir = absolutePath.substring(absolutePath.lastIndexOf("/") + 1, absolutePath.length());
+                               }
+                       }
+
+                       String fileName = "default";
+                       if (policyDir != null && !policyDir.equals(EMPTY_STRING)) {
+                               if(policyConfigType.equals("ClosedLoop_PM")){
+                                       fileName = policyType + "_" + "PM" + "_" +java.lang.String.format(policyFileName) + "." +version +".xml";
+                               }else if(policyConfigType.equals("ClosedLoop_Fault")){
+                                       fileName = policyType + "_" + "Fault" + "_" +java.lang.String.format(policyFileName) +  "." + version + ".xml";
+                               }else if(policyConfigType.equals("ClosedLoop_Fault")){
+                                       fileName = policyType + "_" + "Fault" + "_" +java.lang.String.format(policyFileName) +  "." + version + ".xml";
+                               }else if(policyConfigType.equals("DCAE Micro Service")){
+                                       fileName = policyType + "_" + "MS" + "_" + java.lang.String.format(policyFileName) + "." + version + ".xml";
+                               }
+                       } 
+                       if (fileName != null) {
+                               newFile = Paths.get(parentPath.toString(), fileName);
+                       }
+                       if (Files.notExists(newFile)) {
+                               return newFile;
+                       }
+                       return null;
+               }
+               
+               
+               //create policy once all the validations are completed
+               protected Map<String, String> createPolicy(final Path policyPath, final Object policyData) {
+                       Map<String, String> success = new HashMap<String, String>(); 
+                       //
+                       // Is the root a PolicySet or Policy?
+                       //
+                       
+                       if (policyData instanceof PolicyType) {
+                               //
+                               // Write it out
+                               //
+                               //Does not need to be XACMLPolicyWriterWithPapNotify since it is already in the PAP
+                               //and this transaction is intercepted up stream.
+                               InputStream inputStream = XACMLPolicyWriter.getXmlAsInputStream((PolicyType) policyData);
+                               try {
+                                       PolicyDef policyDef = DOMPolicyDef.load(inputStream);
+                                       if (policyDef != null) {
+                                               //This is does not need to be XACMLPolicyWriterWithPapNotification since it is already in the PAP
+                                               //and the transaction was intercepted up stream
+                                               finalPolicyPath = XACMLPolicyWriter.writePolicyFile(policyPath, (PolicyType) policyData);
+                                               this.setFinalPolicyPath(finalPolicyPath);
+                                       } else{
+                                               success.put("validation", "PolicyDef Validation Failed");
+                                       }
+                               } catch (Exception e) {
+                                       success.put("error", "Validation Failed");
+                               }
+                               
+                       } else {
+                               //TODO:EELF Cleanup - Remove logger
+                               //logger.error("Unknown data type sent back.");
+                               PolicyLogger.error("Unknown data type sent back.");
+                               return success;
+                       }
+                       //
+                       // Did it get written?
+                       //
+                       if (finalPolicyPath == null || !Files.exists(finalPolicyPath)) {
+                               //TODO:EELF Cleanup - Remove logger
+                               //logger.error("Failed to write policy file.");
+                               PolicyLogger.error("Failed to write policy file.");
+                               return success;
+                       }
+                       try {
+                               success.put("success", "success");
+                       } finally {
+                               // vaadin framework will handle exception.
+                       }
+                       return success;
+               }
+               
+               public static String getConfigHome(){
+                       try {
+                               loadWebapps();
+                       } catch (Exception e) {
+                               return null;
+                       }
+                       return configHome;
+               }
+               
+               public static String getActionHome(){
+                       try {
+                               loadWebapps();
+                       } catch (Exception e) {
+                               return null;
+                       }
+                       return actionHome;
+               }
+               
+               private static void loadWebapps() throws Exception{
+                       if(actionHome == null || configHome == null){
+                               Path webappsPath = Paths.get(XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_WEBAPPS));
+                               //Sanity Check
+                               if (webappsPath == null) {
+                                       //TODO:EELF Cleanup - Remove logger
+                                       //logger.error("Invalid Webapps Path Location property : " + XACMLRestProperties.PROP_PAP_WEBAPPS);
+                                       PolicyLogger.error("Invalid Webapps Path Location property : " + XACMLRestProperties.PROP_PAP_WEBAPPS);
+                                       throw new Exception("Invalid Webapps Path Location property : " + XACMLRestProperties.PROP_PAP_WEBAPPS);
+                               }
+                               Path webappsPathConfig;
+                               Path webappsPathAction;
+                               if(webappsPath.toString().contains("\\"))
+                               {
+                                       webappsPathConfig = Paths.get(webappsPath.toString()+"\\Config");
+                                       webappsPathAction = Paths.get(webappsPath.toString()+"\\Action");
+                               }
+                               else
+                               {
+                                       webappsPathConfig = Paths.get(webappsPath.toString()+"/Config");
+                                       webappsPathAction = Paths.get(webappsPath.toString()+"/Action");
+                               }
+                               if (Files.notExists(webappsPathConfig)) 
+                               {
+                                       try {
+                                               Files.createDirectories(webappsPathConfig);
+                                       } catch (IOException e) {
+                                               //TODO:EELF Cleanup - Remove logger
+                                               //logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Failed to create config directory: "
+                                                               //+ webappsPathConfig.toAbsolutePath().toString(), e);
+                                               PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "Policy", "Failed to create config directory");
+                                       }
+                               }
+                               if (Files.notExists(webappsPathAction)) 
+                               {
+                                       try {
+                                               Files.createDirectories(webappsPathAction);
+                                       } catch (IOException e) {
+                                               //TODO:EELF Cleanup - Remove logger
+                                               //logger.error(XACMLErrorConstants.ERROR_PROCESS_FLOW + "Failed to create config directory: "
+                                                               //+ webappsPathAction.toAbsolutePath().toString(), e);
+                                               PolicyLogger.error(MessageCodes.ERROR_PROCESS_FLOW, e, "Policy", "Failed to create config directory");
+                                       }
+                               }
+                               actionHome = webappsPathAction.toString();
+                               configHome = webappsPathConfig.toString();
+                       }
+               }
+               
+               protected String getParentPathSubScopeDir() {
+
+                       final Path gitPath = Paths.get(policyAdapter.getUserGitPath().toString());
+                       String policyDir = policyAdapter.getParentPath().toString();
+                       int startIndex = policyDir.indexOf(gitPath.toString()) + gitPath.toString().length() + 1;
+                       policyDir = policyDir.substring(startIndex, policyDir.length());
+                       
+                       return policyDir;
+               }
+
+
+               public boolean validateConfigForm() {
+                       // TODO Auto-generated method stub
+                       return true;
+               }
+
+               /**
+                * @return the preparedToSave
+                */
+               public boolean isPreparedToSave() {
+                       return preparedToSave;
+               }
+
+               /**
+                * @param preparedToSave the preparedToSave to set
+                */
+               protected void setPreparedToSave(boolean preparedToSave) {
+                       this.preparedToSave = preparedToSave;
+               }
+
+               public boolean isPolicyExists() {
+                       return policyExists;
+               }
+
+               public void setPolicyExists(boolean policyExists) {
+                       this.policyExists = policyExists;
+               }
+               
+               
+}