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 permNS;
  61         private final String permType;
  62         private final ArrayList<String> idDomains;
  63         private String[] trustedCAs;
  64         private String[] caIssuerDNs;
  65         private List<RDN> rdns;
  66
  67
  68         protected CA(Access access, String caName, String env) throws IOException, CertException {
  69                 trustedCAs = new String[4]; // starting array
  70                 this.name = caName;
  71                 this.env = env;
  72                 permNS = CM_CA_PREFIX + name;
  73                 permType = access.getProperty(permNS + ".perm_type",null);
  74                 if(permType==null) {
  75                         throw new CertException(permNS + ".perm_type" + MUST_EXIST_TO_CREATE_CSRS_FOR + caName);
  76                 }
  77                 caIssuerDNs = Split.splitTrim(':', access.getProperty(Config.CADI_X509_ISSUERS, null));
  78
  79                 String tag = CA.CM_CA_PREFIX+caName+CA.CM_CA_BASE_SUBJECT;
  80
  81                 String fields = access.getProperty(tag, null);
  82                 if(fields==null) {
  83                         throw new CertException(tag + MUST_EXIST_TO_CREATE_CSRS_FOR + caName);
  84                 }
  85                 access.log(Level.INFO, tag, "=",fields);
  86                 rdns = RDN.parse('/',fields);
  87                 for(RDN rdn : rdns) {
  88                         if(rdn.aoi==BCStyle.EmailAddress) { // Cert Specs say Emails belong in Subject
  89                                 throw new CertException("email address is not allowed in " + CM_CA_BASE_SUBJECT);
  90                         }
  91                 }
  92
  93                 idDomains = new ArrayList<>();
  94                 StringBuilder sb = null;
  95                 for(String s : Split.splitTrim(',', access.getProperty(CA.CM_CA_PREFIX+caName+".idDomains", ""))) {
  96                         if(s.length()>0) {
  97                                 if(sb==null) {
  98                                         sb = new StringBuilder();
  99                                 } else {
 100                                         sb.append(", ");
 101                                 }
 102                                 idDomains.add(s);
 103                                 sb.append(s);
 104                         }
 105                 }
 106                 if(sb!=null) {
 107                         access.printf(Level.INIT, "CA '%s' supports Personal Certificates for %s", caName, sb);
 108                 }
 109
 110                 String dataDir = access.getProperty(CM_PUBLIC_DIR,null);
 111                 if(dataDir!=null) {
 112                         File data = new File(dataDir);
 113                         byte[] bytes;
 114                         if(data.exists()) {
 115                                 String trustCas = access.getProperty(CM_TRUST_CAS,null);
 116                                 if(trustCas!=null) {
 117                                         for(String fname : Split.splitTrim(',', trustCas)) {
 118                                                 File crt;
 119                                                 if(fname.contains("/")) {
 120                                                         crt = new File(fname);
 121                                                 } else {
 122                                                         crt = new File(data,fname);
 123                                                 }
 124                                                 if(crt.exists()) {
 125                                                         access.printf(Level.INIT, "Loading CA Cert from %s", crt.getAbsolutePath());
 126                                                         bytes = new byte[(int)crt.length()];
 127                                                         FileInputStream fis = new FileInputStream(crt);
 128                                                         try {
 129                                                                 int read = fis.read(bytes);
 130                                                                 if(read>0) {
 131                                                                         addTrustedCA(new String(bytes));
 132                                                                 }
 133                                                         } finally {
 134                                                                 fis.close();
 135                                                         }
 136                                                 } else {
 137                                                         access.printf(Level.INIT, "FAILED to Load CA Cert from %s", crt.getAbsolutePath());
 138                                                 }
 139                                         }
 140                                 } else {
 141                                         access.printf(Level.INIT, "Cannot load external TRUST CAs: No property %s",CM_TRUST_CAS);
 142                                 }
 143                         } else {
 144                                 access.printf(Level.INIT, "Cannot load external TRUST CAs: %s doesn't exist, or is not accessible",data.getAbsolutePath());
 145                         }
 146                 }
 147         }
 148
 149         protected void addCaIssuerDN(String issuerDN) {
 150                 boolean changed = true;
 151                 for(String id : caIssuerDNs) {
 152                         if(id.equals(issuerDN)) {
 153                                 changed = false;
 154                                 break;
 155                         }
 156                 }
 157                 if(changed) {
 158                         String[] newsa = new String[caIssuerDNs.length+1];
 159                         newsa[0]=issuerDN;
 160                         System.arraycopy(caIssuerDNs, 0, newsa, 1, caIssuerDNs.length);
 161                         caIssuerDNs = newsa;
 162                 }
 163         }
 164
 165         protected synchronized void addTrustedCA(final String crtString) {
 166                 String crt;
 167                 if(crtString.endsWith("\n")) {
 168                         crt = crtString;
 169                 } else {
 170                         crt = crtString + '\n';
 171                 }
 172                 for(int i=0;i<trustedCAs.length;++i) {
 173                         if(trustedCAs[i]==null) {
 174                                 trustedCAs[i]=crt;
 175                                 return;
 176                         }
 177                 }
 178                 String[] temp = new String[trustedCAs.length+5];
 179                 System.arraycopy(trustedCAs,0,temp, 0, trustedCAs.length);
 180                 temp[trustedCAs.length]=crt;
 181                 trustedCAs = temp;
 182         }
 183
 184         public String[] getCaIssuerDNs() {
 185                 return caIssuerDNs;
 186         }
 187
 188         public String[] getTrustedCAs() {
 189                 return trustedCAs;
 190         }
 191
 192         public String getEnv() {
 193                 return env;
 194         }
 195
 196         protected void setMessageDigest(MessageDigest md) {
 197                 messageDigest = md;
 198         }
 199
 200         /*
 201          * End Required Constructor calls
 202          */
 203
 204         public String getName() {
 205                 return name;
 206         }
 207
 208
 209         public String getPermNS() {
 210                 return permNS;
 211         }
 212
 213         public String getPermType() {
 214                 return permType;
 215         }
 216
 217         public abstract X509andChain sign(Trans trans, CSRMeta csrmeta) throws IOException, CertException;
 218
 219         /* (non-Javadoc)
 220          * @see org.onap.aaf.auth.cm.ca.CA#inPersonalDomains(java.security.Principal)
 221          */
 222         public boolean inPersonalDomains(Principal p) {
 223                 int at = p.getName().indexOf('@');
 224                 if(at>=0) {
 225                         return idDomains.contains(p.getName().substring(at+1));
 226                 } else {
 227                         return false;
 228                 }
 229         }
 230
 231         public MessageDigest messageDigest() {
 232                 return messageDigest;
 233         }
 234
 235         public CSRMeta newCSRMeta() {
 236                 return new CSRMeta(rdns);
 237         }
 238
 239 }