| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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 |
| * |
| * 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. |
| * |
| */ |
| |
| /* |
| * AT&T - PROPRIETARY |
| * THIS FILE CONTAINS PROPRIETARY INFORMATION OF |
| * AT&T AND IS NOT TO BE DISCLOSED OR USED EXCEPT IN |
| * ACCORDANCE WITH APPLICABLE AGREEMENTS. |
| * |
| * Copyright (c) 2014 AT&T Knowledge Ventures |
| * Unpublished and Not for Publication |
| * All Rights Reserved |
| */ |
| package org.apache.openaz.xacml.pdp.test.custom; |
| |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.net.MalformedURLException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.security.InvalidKeyException; |
| import java.security.KeyPair; |
| import java.security.KeyPairGenerator; |
| import java.security.NoSuchAlgorithmException; |
| import java.security.PrivateKey; |
| import java.security.PublicKey; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.crypto.BadPaddingException; |
| import javax.crypto.Cipher; |
| import javax.crypto.IllegalBlockSizeException; |
| import javax.crypto.NoSuchPaddingException; |
| |
| import org.apache.commons.cli.CommandLine; |
| import org.apache.commons.cli.GnuParser; |
| import org.apache.commons.cli.Option; |
| import org.apache.commons.cli.ParseException; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.openaz.xacml.api.AttributeValue; |
| import org.apache.openaz.xacml.api.DataType; |
| import org.apache.openaz.xacml.api.DataTypeException; |
| import org.apache.openaz.xacml.api.Request; |
| import org.apache.openaz.xacml.api.RequestAttributes; |
| import org.apache.openaz.xacml.api.XACML3; |
| import org.apache.openaz.xacml.api.pep.PEPException; |
| import org.apache.openaz.xacml.pdp.test.TestBase; |
| import org.apache.openaz.xacml.std.IdentifierImpl; |
| import org.apache.openaz.xacml.std.StdMutableAttribute; |
| import org.apache.openaz.xacml.std.StdMutableRequest; |
| import org.apache.openaz.xacml.std.StdMutableRequestAttributes; |
| import org.apache.openaz.xacml.std.dom.DOMStructureException; |
| import org.apache.openaz.xacml.std.json.JSONStructureException; |
| import org.apache.openaz.xacml.util.FactoryException; |
| |
| /** |
| * TestCustom is an application that tests the extensibility and configurability of the AT&T XACML API. It |
| * creates a custom datatype definition factory that adds in custom data types for RSA PublicKey and |
| * PrivateKey. It creates a custom function definition factory that adds in custom decryption function for |
| * decrypting data. It also derives and loads custom functions for the RSA public/private key datatypes for |
| * the bag function: one-and-only. |
| */ |
| public class TestCustom extends TestBase { |
| private static final Log logger = LogFactory.getLog(TestCustom.class); |
| |
| // |
| // Our public's |
| // |
| public static final String ALGORITHM = "RSA"; |
| public static final String PRIVATEKEY_FILE = "PrivateKey.key"; |
| public static final String PUBLICKEY_FILE = "PublicKey.key"; |
| |
| public static final String DECRYPTION_INPUT_STRING = "This is the SECRET value!"; |
| |
| public static final String DECRYPTION_INPUT_ID = "com:att:research:xacml:test:custom:encrypted-data"; |
| // |
| // Our keys |
| // |
| protected PublicKey publicKey = null; |
| protected PrivateKey privateKey = null; |
| // |
| // Our command line parameters |
| // |
| public static final String OPTION_GENERATE = "generate"; |
| |
| static { |
| options.addOption(new Option(OPTION_GENERATE, false, "Generate a private/public key pair.")); |
| } |
| |
| /** |
| * This function generates the public/private key pair. Should never have to call this again, this was |
| * called once to generate the keys. They were saved into the testsets/custom/datatype-function |
| * sub-directory. |
| */ |
| public void generateKeyPair() { |
| // |
| // Generate a RSA private/public key pair |
| // |
| KeyPairGenerator keyGen; |
| try { |
| keyGen = KeyPairGenerator.getInstance(ALGORITHM); |
| } catch (NoSuchAlgorithmException e) { |
| logger.error("failed to generate keypair: " + e); |
| return; |
| } |
| keyGen.initialize(1024); |
| final KeyPair key = keyGen.generateKeyPair(); |
| // |
| // Save the keys to disk |
| // |
| Path file = Paths.get(this.directory, PRIVATEKEY_FILE); |
| try (ObjectOutputStream os = new ObjectOutputStream(Files.newOutputStream(file))) { |
| os.writeObject(key.getPrivate()); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| file = Paths.get(this.directory, PUBLICKEY_FILE); |
| try (ObjectOutputStream os = new ObjectOutputStream(Files.newOutputStream(file))) { |
| os.writeObject(key.getPublic()); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| public TestCustom(String[] args) throws ParseException, MalformedURLException, HelpException { |
| super(args); |
| } |
| |
| /* |
| * (non-Javadoc) Simply look for command line option: -generate This generates the public/private key. |
| * Shouldn't need to call it again, the keys have already been generated and saved. |
| * @see org.apache.openaz.xacml.pdp.test.TestBase#parseCommands(java.lang.String[]) |
| */ |
| @Override |
| protected void parseCommands(String[] args) throws ParseException, MalformedURLException, HelpException { |
| // |
| // Have our parent class parse its options out |
| // |
| super.parseCommands(args); |
| // |
| // Parse the command line options |
| // |
| CommandLine cl; |
| cl = new GnuParser().parse(options, args); |
| if (cl.hasOption(OPTION_GENERATE)) { |
| // |
| // Really only need to do this once to setup the test. |
| // |
| this.generateKeyPair(); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) After our parent class configure's itself, all this needs to do is read in the |
| * public/private key's into objects. |
| * @see org.apache.openaz.xacml.pdp.test.TestBase#configure() |
| */ |
| @Override |
| protected void configure() throws FactoryException { |
| // |
| // Have our super do its thing |
| // |
| super.configure(); |
| // |
| // Read in the public key |
| // |
| try { |
| this.publicKey = (PublicKey)new ObjectInputStream(Files.newInputStream(Paths.get(this.directory, |
| PUBLICKEY_FILE))) |
| .readObject(); |
| } catch (ClassNotFoundException | IOException e) { |
| logger.error(e); |
| } |
| // |
| // Read in the private key |
| // |
| try { |
| this.privateKey = (PrivateKey)new ObjectInputStream(Files.newInputStream(Paths |
| .get(this.directory, PRIVATEKEY_FILE))).readObject(); |
| } catch (ClassNotFoundException | IOException e) { |
| logger.error(e); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) Here we add 2 attributes into the request: 1) the private key, and 2) a String that was |
| * encrypted using the public key. The goal is to have the custom decrypt function use the private key to |
| * decrypt that string. |
| * @see org.apache.openaz.xacml.pdp.test.TestBase#generateRequest(java.nio.file.Path, java.lang.String) |
| */ |
| @Override |
| protected Request generateRequest(Path file, String group) throws JSONStructureException, |
| DOMStructureException, PEPException { |
| // |
| // Have our super class do its work |
| // |
| Request oldRequest = super.generateRequest(file, group); |
| // |
| // Copy the request attributes |
| // |
| List<StdMutableRequestAttributes> attributes = new ArrayList<StdMutableRequestAttributes>(); |
| for (RequestAttributes a : oldRequest.getRequestAttributes()) { |
| attributes.add(new StdMutableRequestAttributes(a)); |
| } |
| // |
| // We are supplying the private key as an attribute for the decryption function to use: |
| // |
| // (NOTE: Ideally this would be provided by a custom PIP provider, not the PEP) |
| // |
| // ID=com:att:research:xacml:test:custom:privatekey |
| // Issuer=com:att:research:xacml:test:custom |
| // Category=urn:oasis:names:tc:xacml:1.0:subject-category:access-subject |
| // Datatype=urn:com:att:research:xacml:custom:3.0:rsa:private |
| // |
| DataType<?> dtExtended = dataTypeFactory.getDataType(DataTypePrivateKey.DT_PRIVATEKEY); |
| if (dtExtended == null) { |
| logger.error("Failed to get private key datatype."); |
| return null; |
| } |
| // |
| // Create the attribute value |
| // |
| try { |
| AttributeValue<?> attributeValue = dtExtended.createAttributeValue(this.privateKey); |
| // |
| // Create the attribute |
| // |
| StdMutableAttribute newAttribute = new StdMutableAttribute( |
| XACML3.ID_SUBJECT_CATEGORY_ACCESS_SUBJECT, |
| new IdentifierImpl( |
| "com:att:research:xacml:test:custom:privatekey"), |
| attributeValue, |
| "com:att:research:xacml:test:custom", |
| false); |
| boolean added = false; |
| for (StdMutableRequestAttributes a : attributes) { |
| // |
| // Does the category exist? |
| // |
| if (a.getCategory().equals(XACML3.ID_SUBJECT_CATEGORY_ACCESS_SUBJECT)) { |
| // |
| // Yes - add in the new attribute value |
| // |
| a.add(newAttribute); |
| added = true; |
| break; |
| } |
| } |
| if (!added) { |
| // |
| // New category - create it and add it in |
| // |
| StdMutableRequestAttributes a = new StdMutableRequestAttributes(); |
| a.setCategory(newAttribute.getCategory()); |
| a.add(newAttribute); |
| attributes.add(a); |
| } |
| } catch (DataTypeException e) { |
| logger.error(e); |
| return null; |
| } |
| // |
| // We are also supplying this attribute which is the secret text encrypted with |
| // the public key. |
| // |
| // ID=com:att:research:xacml:test:custom:encrypted-data |
| // Issuer= |
| // Category=urn:oasis:names:tc:xacml:1.0:subject-category:access-subject |
| // Datatype=http://www.w3.org/2001/XMLSchema#hexBinary |
| // |
| // Encrypt it |
| // |
| byte[] encryptedData = null; |
| try { |
| Cipher cipher = Cipher.getInstance(ALGORITHM); |
| cipher.init(Cipher.ENCRYPT_MODE, this.publicKey); |
| // |
| // This is just a hack to test a decryption of the wrong value. |
| // |
| if (group.equals("Permit")) { |
| encryptedData = cipher.doFinal(DECRYPTION_INPUT_STRING.getBytes()); |
| } else { |
| encryptedData = cipher.doFinal("This is NOT the secret".getBytes()); |
| } |
| } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException |
| | IllegalBlockSizeException | BadPaddingException e) { |
| logger.error(e); |
| return null; |
| } |
| // |
| // Sanity check (for the Permit request) |
| // |
| try { |
| if (group.equals("Permit")) { |
| Cipher cipher = Cipher.getInstance(ALGORITHM); |
| cipher.init(Cipher.DECRYPT_MODE, this.privateKey); |
| byte[] decryptedData = cipher.doFinal(encryptedData); |
| if (new String(decryptedData).equals(DECRYPTION_INPUT_STRING)) { |
| logger.info("Sanity check passed: decrypted the encrypted data."); |
| } else { |
| logger.error("Sanity check failed to decrypt the encrypted data."); |
| return null; |
| } |
| } |
| } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException |
| | IllegalBlockSizeException | BadPaddingException e) { |
| logger.error(e); |
| } |
| // |
| // Get our datatype factory |
| // |
| dtExtended = dataTypeFactory.getDataType(XACML3.ID_DATATYPE_HEXBINARY); |
| if (dtExtended == null) { |
| logger.error("Failed to get hex binary datatype."); |
| return null; |
| } |
| // |
| // Create the attribute value |
| // |
| try { |
| AttributeValue<?> attributeValue = dtExtended.createAttributeValue(encryptedData); |
| // |
| // Create the attribute |
| // |
| StdMutableAttribute newAttribute = new StdMutableAttribute( |
| XACML3.ID_SUBJECT_CATEGORY_ACCESS_SUBJECT, |
| new IdentifierImpl( |
| "com:att:research:xacml:test:custom:encrypted-data"), |
| attributeValue, null, false); |
| boolean added = false; |
| for (StdMutableRequestAttributes a : attributes) { |
| // |
| // Does the category exist? |
| // |
| if (a.getCategory().equals(XACML3.ID_SUBJECT_CATEGORY_ACCESS_SUBJECT)) { |
| // |
| // Yes - add in the new attribute value |
| // |
| a.add(newAttribute); |
| added = true; |
| break; |
| } |
| } |
| if (!added) { |
| // |
| // New category - create it and add it in |
| // |
| StdMutableRequestAttributes a = new StdMutableRequestAttributes(); |
| a.setCategory(newAttribute.getCategory()); |
| a.add(newAttribute); |
| attributes.add(a); |
| } |
| } catch (DataTypeException e) { |
| logger.error(e); |
| return null; |
| } |
| // |
| // Now form our final request |
| // |
| StdMutableRequest newRequest = new StdMutableRequest(); |
| newRequest.setCombinedDecision(oldRequest.getCombinedDecision()); |
| newRequest.setRequestDefaults(oldRequest.getRequestDefaults()); |
| newRequest.setReturnPolicyIdList(oldRequest.getReturnPolicyIdList()); |
| newRequest.setStatus(oldRequest.getStatus()); |
| for (StdMutableRequestAttributes a : attributes) { |
| newRequest.add(a); |
| } |
| return newRequest; |
| } |
| |
| public static void main(String[] args) { |
| try { |
| new TestCustom(args).run(); |
| } catch (ParseException | IOException | FactoryException e) { |
| logger.error(e); |
| } catch (HelpException e) { |
| } |
| } |
| |
| } |
