2 * ============LICENSE_START====================================================
4 * ===========================================================================
5 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
6 * ===========================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END====================================================
22 package org.onap.aaf.cadi.taf.cert;
24 import java.io.ByteArrayInputStream;
25 import java.io.ByteArrayOutputStream;
26 import java.security.MessageDigest;
27 import java.security.NoSuchAlgorithmException;
28 import java.security.Signature;
29 import java.security.cert.CertificateException;
30 import java.security.cert.CertificateFactory;
31 import java.security.cert.X509Certificate;
32 import java.util.ArrayList;
34 import javax.net.ssl.TrustManagerFactory;
35 import javax.servlet.http.HttpServletRequest;
36 import javax.servlet.http.HttpServletResponse;
38 import org.onap.aaf.cadi.Access;
39 import org.onap.aaf.cadi.Access.Level;
40 import org.onap.aaf.cadi.CachedPrincipal;
41 import org.onap.aaf.cadi.CachedPrincipal.Resp;
42 import org.onap.aaf.cadi.CadiException;
43 import org.onap.aaf.cadi.CredVal;
44 import org.onap.aaf.cadi.Lur;
45 import org.onap.aaf.cadi.Symm;
46 import org.onap.aaf.cadi.Taf.LifeForm;
47 import org.onap.aaf.cadi.config.Config;
48 import org.onap.aaf.cadi.config.SecurityInfo;
49 import org.onap.aaf.cadi.config.SecurityInfoC;
50 import org.onap.aaf.cadi.principal.TaggedPrincipal;
51 import org.onap.aaf.cadi.principal.X509Principal;
52 import org.onap.aaf.cadi.taf.HttpTaf;
53 import org.onap.aaf.cadi.taf.TafResp;
54 import org.onap.aaf.cadi.taf.TafResp.RESP;
55 import org.onap.aaf.cadi.taf.basic.BasicHttpTaf;
56 import org.onap.aaf.cadi.util.Split;
58 public class X509Taf implements HttpTaf {
60 private static final String CERTIFICATE_NOT_VALID_FOR_AUTHENTICATION = "Certificate NOT valid for Authentication";
61 public static final CertificateFactory certFactory;
62 public static final MessageDigest messageDigest;
63 public static final TrustManagerFactory tmf;
64 private Access access;
65 private CertIdentity[] certIdents;
67 private ArrayList<String> cadiIssuers;
69 private SecurityInfo si;
70 private BasicHttpTaf bht;
74 certFactory = CertificateFactory.getInstance("X.509");
75 messageDigest = MessageDigest.getInstance("SHA-256"); // use this to clone
76 tmf = TrustManagerFactory.getInstance(SecurityInfoC.SSL_KEY_MANAGER_FACTORY_ALGORITHM);
77 } catch (Exception e) {
78 throw new RuntimeException("X.509 and SHA-256 are required for X509Taf",e);
82 public X509Taf(Access access, Lur lur, CertIdentity ... cis) throws CertificateException, NoSuchAlgorithmException, CadiException {
84 env = access.getProperty(Config.AAF_ENV,null);
86 throw new CadiException("X509Taf requires Environment ("+Config.AAF_ENV+") to be set.");
89 this.cadiIssuers = new ArrayList<String>();
90 for(String ci : access.getProperty(Config.CADI_X509_ISSUERS, "").split(":")) {
91 access.printf(Level.INIT, "Trusting Identity for Certificates signed by \"%s\"",ci);
95 Class<?> dci = access.classLoader().loadClass("org.onap.aaf.auth.direct.DirectCertIdentity");
99 CertIdentity temp[] = new CertIdentity[cis.length+1];
100 System.arraycopy(cis, 0, temp, 1, cis.length);
101 temp[0] = (CertIdentity) dci.newInstance();
104 } catch (Exception e) {
108 si = new SecurityInfo(access);
111 public static final X509Certificate getCert(byte[] certBytes) throws CertificateException {
112 ByteArrayInputStream bais = new ByteArrayInputStream(certBytes);
113 return (X509Certificate)certFactory.generateCertificate(bais);
116 public static final byte[] getFingerPrint(byte[] ba) {
119 md = (MessageDigest)messageDigest.clone();
120 } catch (CloneNotSupportedException e) {
121 // should never get here
129 public TafResp validate(LifeForm reading, HttpServletRequest req, HttpServletResponse resp) {
130 // Check for Mutual SSL
132 X509Certificate[] certarr = (X509Certificate[])req.getAttribute("javax.servlet.request.X509Certificate");
133 if(certarr!=null && certarr.length>0) {
134 si.checkClientTrusted(certarr);
135 // Note: If the Issuer is not in the TrustStore, it's not added to the Cert list
136 String issuer = certarr[0].getIssuerDN().toString();
137 if(cadiIssuers.contains(issuer)) {
138 String subject = certarr[0].getSubjectDN().getName();
139 // avoiding extra object creation, since this is validated EVERY transaction with a Cert
140 int at = subject.indexOf('@');
142 int start = subject.lastIndexOf(',', at);
146 int end = subject.indexOf(',', at);
148 end=subject.length();
151 if(((temp=subject.indexOf("OU=",start))>=0 && temp<end) ||
152 ((temp=subject.indexOf("CN=",start))>=0 && temp<end)) {
153 String[] sa = Split.splitTrim(':', subject, temp+3,end);
154 if(sa.length==1 || (sa.length>1 && env!=null && env.equals(sa[1]))) { // Check Environment
155 return new X509HttpTafResp(access,
156 new X509Principal(sa[0], certarr[0],(byte[])null,bht),
157 "X509Taf validated " + sa[0] + (sa.length<2?"":" for aaf_env " + env ), RESP.IS_AUTHENTICATED);
167 byte[] certBytes = null;
168 X509Certificate cert=null;
169 String responseText=null;
170 String authHeader = req.getHeader("Authorization");
172 if(certarr!=null) { // If cert !=null, Cert is Tested by Mutual Protocol.
173 if(authHeader!=null) { // This is only intended to be a Secure Connection, not an Identity
174 for(String auth : Split.split(',',authHeader)) {
175 if(auth.startsWith("Bearer ")) { // Bearer = OAuth... Don't use as Authenication
176 return new X509HttpTafResp(access, null, "Certificate verified, but Bearer Token is presented", RESP.TRY_ANOTHER_TAF);
181 responseText = ", validated by Mutual SSL Protocol";
182 } else { // If cert == null, Get Declared Cert (in header), but validate by having them sign something
183 if(authHeader != null) {
184 for(String auth : Split.splitTrim(',',authHeader)) {
185 if(auth.startsWith("x509 ")) {
186 ByteArrayOutputStream baos = new ByteArrayOutputStream(auth.length());
188 array = auth.getBytes();
189 ByteArrayInputStream bais = new ByteArrayInputStream(array);
190 Symm.base64noSplit.decode(bais, baos, 5);
191 certBytes = baos.toByteArray();
192 cert = getCert(certBytes);
195 * Identity from CERT if well know CA and specific encoded information
197 // If found Identity doesn't work, try SignedStuff Protocol
198 // cert.checkValidity();
199 // cert.--- GET FINGERPRINT?
200 String stuff = req.getHeader("Signature");
202 return new X509HttpTafResp(access, null, "Header entry 'Signature' required to validate One way X509 Certificate", RESP.TRY_ANOTHER_TAF);
203 String data = req.getHeader("Data");
205 // return new X509HttpTafResp(access, null, "No signed Data to validate with X509 Certificate", RESP.TRY_ANOTHER_TAF);
207 // Note: Data Pos shows is "<signatureType> <data>"
208 // int dataPos = (stuff.indexOf(' ')); // determine what is Algorithm
210 bais = new ByteArrayInputStream(stuff.getBytes());
211 baos = new ByteArrayOutputStream(stuff.length());
212 Symm.base64noSplit.decode(bais, baos);
213 array = baos.toByteArray();
214 // Signature sig = Signature.getInstance(stuff.substring(0, dataPos)); // get Algorithm from first part of Signature
216 Signature sig = Signature.getInstance(cert.getSigAlgName());
217 sig.initVerify(cert.getPublicKey());
218 sig.update(data.getBytes());
219 if(!sig.verify(array)) {
220 access.log(Level.ERROR, "Signature doesn't Match");
221 return new X509HttpTafResp(access, null, CERTIFICATE_NOT_VALID_FOR_AUTHENTICATION, RESP.TRY_ANOTHER_TAF);
223 responseText = ", validated by Signed Data";
224 } catch (Exception e) {
225 access.log(e, "Exception while validating Cert");
226 return new X509HttpTafResp(access, null, CERTIFICATE_NOT_VALID_FOR_AUTHENTICATION, RESP.TRY_ANOTHER_TAF);
232 return new X509HttpTafResp(access, null, "No Certificate Info on Transaction", RESP.TRY_ANOTHER_TAF);
235 // A cert has been found, match Identify
236 TaggedPrincipal prin=null;
238 for(int i=0;prin==null && i<certIdents.length;++i) {
239 if((prin=certIdents[i].identity(req, cert, certBytes))!=null) {
240 responseText = prin.getName() + " matches Certificate " + cert.getSubjectX500Principal().getName() + responseText;
244 // if Principal is found, check for "AS_USER" and whether this entity is trusted to declare
246 return new X509HttpTafResp(
250 RESP.IS_AUTHENTICATED);
253 } catch(Exception e) {
254 return new X509HttpTafResp(access, null, e.getMessage(), RESP.TRY_ANOTHER_TAF);
257 return new X509HttpTafResp(access, null, "Certificate cannot be used for authentication", RESP.TRY_ANOTHER_TAF);
261 public Resp revalidate(CachedPrincipal prin, Object state) {
265 public void add(BasicHttpTaf bht) {
269 public CredVal getCredVal(final String key) {
273 return bht.getCredVal(key);