auth/auth-certman/src/main/java/org/onap/aaf/auth/cm/ca/CA.java

   1 /**
   2  * ============LICENSE_START====================================================
   3  * org.onap.aaf
   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
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  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====================================================
  19  *
  20  */
  21 package org.onap.aaf.auth.cm.ca;
  22
  23 import java.io.File;
  24 import java.io.FileInputStream;
  25 import java.io.IOException;
  26 import java.security.MessageDigest;
  27 import java.security.Principal;
  28 import java.util.ArrayList;
  29 import java.util.Collections;
  30 import java.util.HashSet;
  31 import java.util.List;
  32 import java.util.Set;
  33
  34 import org.bouncycastle.asn1.x500.style.BCStyle;
  35 import org.onap.aaf.auth.cm.cert.CSRMeta;
  36 import org.onap.aaf.auth.cm.cert.RDN;
  37 import org.onap.aaf.cadi.Access;
  38 import org.onap.aaf.cadi.Access.Level;
  39 import org.onap.aaf.cadi.config.Config;
  40 import org.onap.aaf.cadi.configure.CertException;
  41 import org.onap.aaf.misc.env.Trans;
  42 import org.onap.aaf.misc.env.util.Split;
  43
  44 public abstract class CA {
  45         private static final String MUST_EXIST_TO_CREATE_CSRS_FOR = " must exist to create CSRs for ";
  46         //TODO figuring out what is an Issuing CA is a matter of convention.  Consider SubClassing for Open Source
  47         public static final String ISSUING_CA = "Issuing CA";
  48         public static final String CM_CA_PREFIX = "cm_ca.";
  49         public static final String CM_CA_BASE_SUBJECT = ".baseSubject";
  50         protected static final String CM_PUBLIC_DIR = "cm_public_dir";
  51         private static final String CM_TRUST_CAS = "cm_trust_cas";
  52         protected static final String CM_BACKUP_CAS = "cm_backup_cas";
  53
  54         public static final Set<String> EMPTY = Collections.unmodifiableSet(new HashSet<>());
  55
  56
  57         private final String name;
  58         private final String env;
  59         private MessageDigest messageDigest;
  60         private final String permType;
  61         private final ArrayList<String> idDomains;
  62         private String[] trustedCAs;
  63         private String[] caIssuerDNs;
  64         private List<RDN> rdns;
  65
  66
  67         protected CA(Access access, String caName, String env) throws IOException, CertException {
  68                 trustedCAs = new String[4]; // starting array
  69                 this.name = caName;
  70                 this.env = env;
  71                 permType = access.getProperty(CM_CA_PREFIX + name + ".perm_type",null);
  72                 if(permType==null) {
  73                         throw new CertException(CM_CA_PREFIX + name + ".perm_type" + MUST_EXIST_TO_CREATE_CSRS_FOR + caName);
  74                 }
  75                 caIssuerDNs = Split.splitTrim(':', access.getProperty(Config.CADI_X509_ISSUERS, null));
  76
  77                 String tag = CA.CM_CA_PREFIX+caName+CA.CM_CA_BASE_SUBJECT;
  78
  79                 String fields = access.getProperty(tag, null);
  80                 if(fields==null) {
  81                         throw new CertException(tag + MUST_EXIST_TO_CREATE_CSRS_FOR + caName);
  82                 }
  83                 access.log(Level.INFO, tag, "=",fields);
  84                 rdns = RDN.parse('/',fields);
  85                 for(RDN rdn : rdns) {
  86                         if(rdn.aoi==BCStyle.EmailAddress) { // Cert Specs say Emails belong in Subject
  87                                 throw new CertException("email address is not allowed in " + CM_CA_BASE_SUBJECT);
  88                         }
  89                 }
  90
  91                 idDomains = new ArrayList<>();
  92                 StringBuilder sb = null;
  93                 for(String s : Split.splitTrim(',', access.getProperty(CA.CM_CA_PREFIX+caName+".idDomains", ""))) {
  94                         if(s.length()>0) {
  95                                 if(sb==null) {
  96                                         sb = new StringBuilder();
  97                                 } else {
  98                                         sb.append(", ");
  99                                 }
 100                                 idDomains.add(s);
 101                                 sb.append(s);
 102                         }
 103                 }
 104                 if(sb!=null) {
 105                         access.printf(Level.INIT, "CA '%s' supports Personal Certificates for %s", caName, sb);
 106                 }
 107
 108                 String dataDir = access.getProperty(CM_PUBLIC_DIR,null);
 109                 if(dataDir!=null) {
 110                         File data = new File(dataDir);
 111                         byte[] bytes;
 112                         if(data.exists()) {
 113                                 String trustCas = access.getProperty(CM_TRUST_CAS,null);
 114                                 if(trustCas!=null) {
 115                                         for(String fname : Split.splitTrim(',', trustCas)) {
 116                                                 File crt;
 117                                                 if(fname.contains("/")) {
 118                                                         crt = new File(fname);
 119                                                 } else {
 120                                                         crt = new File(data,fname);
 121                                                 }
 122                                                 if(crt.exists()) {
 123                                                         access.printf(Level.INIT, "Loading CA Cert from %s", crt.getAbsolutePath());
 124                                                         bytes = new byte[(int)crt.length()];
 125                                                         FileInputStream fis = new FileInputStream(crt);
 126                                                         try {
 127                                                                 int read = fis.read(bytes);
 128                                                                 if(read>0) {
 129                                                                         addTrustedCA(new String(bytes));
 130                                                                 }
 131                                                         } finally {
 132                                                                 fis.close();
 133                                                         }
 134                                                 } else {
 135                                                         access.printf(Level.INIT, "FAILED to Load CA Cert from %s", crt.getAbsolutePath());
 136                                                 }
 137                                         }
 138                                 } else {
 139                                         access.printf(Level.INIT, "Cannot load external TRUST CAs: No property %s",CM_TRUST_CAS);
 140                                 }
 141                         } else {
 142                                 access.printf(Level.INIT, "Cannot load external TRUST CAs: %s doesn't exist, or is not accessible",data.getAbsolutePath());
 143                         }
 144                 }
 145         }
 146
 147         protected void addCaIssuerDN(String issuerDN) {
 148                 boolean changed = true;
 149                 for(String id : caIssuerDNs) {
 150                         if(id.equals(issuerDN)) {
 151                                 changed = false;
 152                                 break;
 153                         }
 154                 }
 155                 if(changed) {
 156                         String[] newsa = new String[caIssuerDNs.length+1];
 157                         newsa[0]=issuerDN;
 158                         System.arraycopy(caIssuerDNs, 0, newsa, 1, caIssuerDNs.length);
 159                         caIssuerDNs = newsa;
 160                 }
 161         }
 162
 163         protected synchronized void addTrustedCA(final String crtString) {
 164                 String crt;
 165                 if(crtString.endsWith("\n")) {
 166                         crt = crtString;
 167                 } else {
 168                         crt = crtString + '\n';
 169                 }
 170                 for(int i=0;i<trustedCAs.length;++i) {
 171                         if(trustedCAs[i]==null) {
 172                                 trustedCAs[i]=crt;
 173                                 return;
 174                         }
 175                 }
 176                 String[] temp = new String[trustedCAs.length+5];
 177                 System.arraycopy(trustedCAs,0,temp, 0, trustedCAs.length);
 178                 temp[trustedCAs.length]=crt;
 179                 trustedCAs = temp;
 180         }
 181
 182         public String[] getCaIssuerDNs() {
 183                 return caIssuerDNs;
 184         }
 185
 186         public String[] getTrustedCAs() {
 187                 return trustedCAs;
 188         }
 189
 190         public String getEnv() {
 191                 return env;
 192         }
 193
 194         protected void setMessageDigest(MessageDigest md) {
 195                 messageDigest = md;
 196         }
 197
 198         /*
 199          * End Required Constructor calls
 200          */
 201
 202         public String getName() {
 203                 return name;
 204         }
 205
 206
 207         public String getPermType() {
 208                 return permType;
 209         }
 210
 211         public abstract X509andChain sign(Trans trans, CSRMeta csrmeta) throws IOException, CertException;
 212
 213         /* (non-Javadoc)
 214          * @see org.onap.aaf.auth.cm.ca.CA#inPersonalDomains(java.security.Principal)
 215          */
 216         public boolean inPersonalDomains(Principal p) {
 217                 int at = p.getName().indexOf('@');
 218                 if(at>=0) {
 219                         return idDomains.contains(p.getName().substring(at+1));
 220                 } else {
 221                         return false;
 222                 }
 223         }
 224
 225         public MessageDigest messageDigest() {
 226                 return messageDigest;
 227         }
 228
 229         public CSRMeta newCSRMeta() {
 230                 return new CSRMeta(rdns);
 231         }
 232
 233 }