src/org/cacert/gigi/pages/account/CertificateIssueForm.java

   1 package org.cacert.gigi.pages.account;
   2
   3 import java.io.IOException;
   4 import java.io.PrintWriter;
   5 import java.security.GeneralSecurityException;
   6 import java.security.PublicKey;
   7 import java.security.interfaces.DSAPublicKey;
   8 import java.security.interfaces.ECPublicKey;
   9 import java.security.interfaces.RSAPublicKey;
  10 import java.sql.SQLException;
  11 import java.util.Base64;
  12 import java.util.HashMap;
  13 import java.util.Map;
  14
  15 import javax.servlet.http.HttpServletRequest;
  16
  17 import org.cacert.gigi.Certificate;
  18 import org.cacert.gigi.Certificate.CSRType;
  19 import org.cacert.gigi.CertificateProfile;
  20 import org.cacert.gigi.Digest;
  21 import org.cacert.gigi.EmailAddress;
  22 import org.cacert.gigi.GigiApiException;
  23 import org.cacert.gigi.User;
  24 import org.cacert.gigi.crypto.SPKAC;
  25 import org.cacert.gigi.localisation.Language;
  26 import org.cacert.gigi.output.Form;
  27 import org.cacert.gigi.output.template.HashAlgorithms;
  28 import org.cacert.gigi.output.template.IterableDataset;
  29 import org.cacert.gigi.output.template.Template;
  30 import org.cacert.gigi.pages.LoginPage;
  31 import org.cacert.gigi.pages.Page;
  32 import org.cacert.gigi.util.PEM;
  33 import org.cacert.gigi.util.RandomToken;
  34
  35 import sun.security.pkcs10.PKCS10;
  36 import sun.security.pkcs10.PKCS10Attribute;
  37 import sun.security.pkcs10.PKCS10Attributes;
  38 import sun.security.util.DerInputStream;
  39 import sun.security.util.DerValue;
  40 import sun.security.util.ObjectIdentifier;
  41 import sun.security.x509.AlgorithmId;
  42 import sun.security.x509.CertificateExtensions;
  43 import sun.security.x509.DNSName;
  44 import sun.security.x509.ExtendedKeyUsageExtension;
  45 import sun.security.x509.Extension;
  46 import sun.security.x509.GeneralName;
  47 import sun.security.x509.GeneralNameInterface;
  48 import sun.security.x509.GeneralNames;
  49 import sun.security.x509.RFC822Name;
  50 import sun.security.x509.SubjectAlternativeNameExtension;
  51
  52 /**
  53  * This class represents a form that is used for issuing certificates. This
  54  * class uses "sun.security" and therefore needs "-XDignore.symbol.file"
  55  */
  56 public class CertificateIssueForm extends Form {
  57
  58     User u;
  59
  60     Digest selectedDigest = Digest.getDefault();
  61
  62     boolean login;
  63
  64     String csr;
  65
  66     private final static Template t = new Template(CertificateIssueForm.class.getResource("CertificateIssueForm.templ"));
  67
  68     private final static Template tIni = new Template(CertificateAdd.class.getResource("RequestCertificate.templ"));
  69
  70     String spkacChallenge;
  71
  72     public CertificateIssueForm(HttpServletRequest hsr) {
  73         super(hsr);
  74         u = Page.getUser(hsr);
  75         spkacChallenge = RandomToken.generateToken(16);
  76     }
  77
  78     Certificate result;
  79
  80     private CSRType csrType;
  81
  82     public Certificate getResult() {
  83         return result;
  84     }
  85
  86     @Override
  87     public boolean submit(PrintWriter out, HttpServletRequest req) {
  88         String csr = req.getParameter("CSR");
  89         String spkac = req.getParameter("SPKAC");
  90         try {
  91             try {
  92                 if (csr != null) {
  93                     byte[] data = PEM.decode("(NEW )?CERTIFICATE REQUEST", csr);
  94                     PKCS10 parsed = new PKCS10(data);
  95                     PKCS10Attributes atts = parsed.getAttributes();
  96                     ObjectIdentifier extensionsRequest = ObjectIdentifier.newInternal(new int[] {
  97                             1, 2, 840, 113549, 1, 9, 14
  98                     });
  99
 100                     for (PKCS10Attribute b : atts.getAttributes()) {
 101
 102                         if ( !b.getAttributeId().equals((Object) extensionsRequest)) {
 103                             // unknown attrib
 104                             continue;
 105                         }
 106                         Object attribs = b.getAttributeValue();
 107                         CertificateExtensions ce = (CertificateExtensions) attribs;
 108                         for (Extension c : ce.getAllExtensions()) {
 109                             if (c instanceof SubjectAlternativeNameExtension) {
 110
 111                                 SubjectAlternativeNameExtension san = (SubjectAlternativeNameExtension) c;
 112                                 GeneralNames obj = san.get(SubjectAlternativeNameExtension.SUBJECT_NAME);
 113                                 for (int i = 0; i < obj.size(); i++) {
 114                                     GeneralName generalName = obj.get(i);
 115                                     GeneralNameInterface peeled = generalName.getName();
 116                                     if (peeled instanceof DNSName) {
 117                                         System.out.println("is-dns: " + ((DNSName) peeled).getName());
 118                                     } else if (peeled instanceof RFC822Name) {
 119                                         System.out.println("is email: " + ((RFC822Name) peeled).getName());
 120                                     }
 121                                 }
 122                             } else if (c instanceof ExtendedKeyUsageExtension) {
 123                                 ExtendedKeyUsageExtension ekue = (ExtendedKeyUsageExtension) c;
 124                                 for (String s : ekue.getExtendedKeyUsage()) {
 125                                     System.out.println("Usage: " + s);
 126                                     if (s.equals("1.3.6.1.5.5.7.3.1")) {
 127                                         // server
 128                                     } else if (s.equals("1.3.6.1.5.5.7.3.2")) {
 129                                         // client
 130                                     } else if (s.equals("1.3.6.1.5.5.7.3.3")) {
 131                                         // code sign
 132                                     } else if (s.equals("1.3.6.1.5.5.7.3.4")) {
 133                                         System.out.println("Us: emailProtection");
 134                                     } else if (s.equals("1.3.6.1.5.5.7.3.8")) {
 135                                         // timestamp
 136                                     } else if (s.equals("1.3.6.1.5.5.7.3.9")) {
 137                                         // OCSP
 138                                     }
 139                                 }
 140                             } else {
 141                                 // Unknown requestet extension
 142                             }
 143                         }
 144
 145                     }
 146                     out.println(parsed.getSubjectName().getCommonName());
 147                     out.println(parsed.getSubjectName().getCountry());
 148                     out.println("CSR DN: " + parsed.getSubjectName() + "<br/>");
 149                     PublicKey pk = parsed.getSubjectPublicKeyInfo();
 150                     checkKeyStrength(pk, out);
 151                     String sign = getSignatureAlgorithm(data);
 152                     out.println("<br/>digest: " + sign + "<br/>");
 153
 154                     this.csr = csr;
 155                     this.csrType = CSRType.CSR;
 156                 } else if (spkac != null) {
 157                     String cleanedSPKAC = spkac.replaceAll("[\r\n]", "");
 158                     byte[] data = Base64.getDecoder().decode(cleanedSPKAC);
 159                     SPKAC parsed = new SPKAC(data);
 160                     if ( !parsed.getChallenge().equals(spkacChallenge)) {
 161                         throw new GigiApiException("Challenge mismatch");
 162                     }
 163                     checkKeyStrength(parsed.getPubkey(), out);
 164                     String sign = getSignatureAlgorithm(data);
 165                     out.println("<br/>digest: " + sign + "<br/>");
 166
 167                     // spkacChallenge
 168                     this.csr = "SPKAC=" + cleanedSPKAC;
 169                     this.csrType = CSRType.SPKAC;
 170
 171                 } else {
 172                     login = "1".equals(req.getParameter("login"));
 173                     String hashAlg = req.getParameter("hash_alg");
 174                     if (hashAlg != null) {
 175                         selectedDigest = Digest.valueOf(hashAlg);
 176                     }
 177                     if (req.getParameter("CCA") == null) {
 178                         outputError(out, req, "You need to accept the CCA.");
 179                         return false;
 180                     }
 181                     CertificateProfile profile = CertificateProfile.getByName(req.getParameter("profile"));
 182
 183                     System.out.println("issuing " + selectedDigest);
 184                     result = new Certificate(LoginPage.getUser(req).getId(), "/commonName=CAcert WoT User", selectedDigest.toString(), this.csr, this.csrType, profile);
 185                     result.issue().waitFor(60000);
 186                     return true;
 187                 }
 188             } catch (IOException e) {
 189                 e.printStackTrace();
 190             } catch (IllegalArgumentException e) {
 191                 throw new GigiApiException("Certificate Request format is invalid.");
 192             } catch (GeneralSecurityException e) {
 193                 throw new GigiApiException("Certificate Request format is invalid.");
 194             } catch (InterruptedException e) {
 195                 e.printStackTrace();
 196             } catch (SQLException e) {
 197                 throw new GigiApiException(e);
 198             }
 199         } catch (GigiApiException e) {
 200             e.format(out, Page.getLanguage(req));
 201         }
 202         return false;
 203     }
 204
 205     private void checkKeyStrength(PublicKey pk, PrintWriter out) {
 206         out.println("Type: " + pk.getAlgorithm() + "<br/>");
 207         if (pk instanceof RSAPublicKey) {
 208             out.println("Exponent: " + ((RSAPublicKey) pk).getPublicExponent() + "<br/>");
 209             out.println("Length: " + ((RSAPublicKey) pk).getModulus().bitLength());
 210         } else if (pk instanceof DSAPublicKey) {
 211             DSAPublicKey dpk = (DSAPublicKey) pk;
 212             out.println("Length: " + dpk.getY().bitLength() + "<br/>");
 213             out.println(dpk.getParams());
 214         } else if (pk instanceof ECPublicKey) {
 215             ECPublicKey epk = (ECPublicKey) pk;
 216             out.println("Length-x: " + epk.getW().getAffineX().bitLength() + "<br/>");
 217             out.println("Length-y: " + epk.getW().getAffineY().bitLength() + "<br/>");
 218             out.println(epk.getParams().getCurve());
 219         }
 220     }
 221
 222     private static PKCS10 parseCSR(String csr) throws IOException, GeneralSecurityException {
 223         return new PKCS10(PEM.decode("(NEW )?CERTIFICATE REQUEST", csr));
 224     }
 225
 226     private static String getSignatureAlgorithm(byte[] data) throws IOException {
 227         DerInputStream in = new DerInputStream(data);
 228         DerValue[] seq = in.getSequence(3);
 229         return AlgorithmId.parse(seq[1]).getName();
 230     }
 231
 232     @Override
 233     public void output(PrintWriter out, Language l, Map<String, Object> vars) {
 234         if (csr == null) {
 235             HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
 236             vars2.put("csrf", getCSRFToken());
 237             vars2.put("csrf_name", getCsrfFieldName());
 238             vars2.put("spkacChallenge", spkacChallenge);
 239             tIni.output(out, l, vars2);
 240             return;
 241         } else {
 242             super.output(out, l, vars);
 243         }
 244     }
 245
 246     @Override
 247     protected void outputContent(PrintWriter out, Language l, Map<String, Object> vars) {
 248         HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
 249         vars2.put("CCA", "<a href='/policy/CAcertCommunityAgreement.html'>CCA</a>");
 250
 251         final EmailAddress[] ea = u.getEmails();
 252         vars2.put("emails", new IterableDataset() {
 253
 254             int count;
 255
 256             @Override
 257             public boolean next(Language l, Map<String, Object> vars) {
 258                 if (count >= ea.length) {
 259                     return false;
 260                 }
 261                 vars.put("id", ea[count].getId());
 262                 vars.put("value", ea[count].getAddress());
 263                 count++;
 264                 return true;
 265             }
 266         });
 267         vars2.put("hashs", new HashAlgorithms(selectedDigest));
 268         vars2.put("profiles", new IterableDataset() {
 269
 270             int i = 1;
 271
 272             @Override
 273             public boolean next(Language l, Map<String, Object> vars) {
 274                 CertificateProfile cp = CertificateProfile.getById(i++);
 275                 if (cp == null) {
 276                     return false;
 277                 }
 278                 vars.put("key", cp.getKeyName());
 279                 vars.put("name", cp.getVisibleName());
 280                 return true;
 281             }
 282         });
 283         t.output(out, l, vars2);
 284     }
 285 }