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.Language;
  24 import org.cacert.gigi.User;
  25 import org.cacert.gigi.crypto.SPKAC;
  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.util.DerInputStream;
  37 import sun.security.util.DerValue;
  38 import sun.security.x509.AlgorithmId;
  39
  40 /**
  41  * This class represents a form that is used for issuing certificates. This
  42  * class uses "sun.security" and therefore needs "-XDignore.symbol.file"
  43  */
  44 public class CertificateIssueForm extends Form {
  45
  46     User u;
  47
  48     Digest selectedDigest = Digest.getDefault();
  49
  50     boolean login;
  51
  52     String csr;
  53
  54     private final static Template t = new Template(CertificateIssueForm.class.getResource("CertificateIssueForm.templ"));
  55
  56     private final static Template tIni = new Template(CertificateAdd.class.getResource("RequestCertificate.templ"));
  57
  58     String spkacChallenge;
  59
  60     public CertificateIssueForm(HttpServletRequest hsr) {
  61         super(hsr);
  62         u = Page.getUser(hsr);
  63         spkacChallenge = RandomToken.generateToken(16);
  64     }
  65
  66     Certificate result;
  67
  68     private CSRType csrType;
  69
  70     public Certificate getResult() {
  71         return result;
  72     }
  73
  74     @Override
  75     public boolean submit(PrintWriter out, HttpServletRequest req) {
  76         String csr = req.getParameter("CSR");
  77         String spkac = req.getParameter("SPKAC");
  78         try {
  79             try {
  80                 if (csr != null) {
  81                     byte[] data = PEM.decode("(NEW )?CERTIFICATE REQUEST", csr);
  82                     PKCS10 parsed = new PKCS10(data);
  83
  84                     out.println(parsed.getSubjectName().getCommonName());
  85                     out.println(parsed.getSubjectName().getCountry());
  86                     out.println("CSR DN: " + parsed.getSubjectName() + "<br/>");
  87                     PublicKey pk = parsed.getSubjectPublicKeyInfo();
  88                     checkKeyStrength(pk, out);
  89                     String sign = getSignatureAlgorithm(data);
  90                     out.println("<br/>digest: " + sign + "<br/>");
  91
  92                     this.csr = csr;
  93                     this.csrType = CSRType.CSR;
  94                 } else if (spkac != null) {
  95                     String cleanedSPKAC = spkac.replaceAll("[\r\n]", "");
  96                     byte[] data = Base64.getDecoder().decode(cleanedSPKAC);
  97                     SPKAC parsed = new SPKAC(data);
  98                     if ( !parsed.getChallenge().equals(spkacChallenge)) {
  99                         throw new GigiApiException("Challenge mismatch");
 100                     }
 101                     checkKeyStrength(parsed.getPubkey(), out);
 102                     String sign = getSignatureAlgorithm(data);
 103                     out.println("<br/>digest: " + sign + "<br/>");
 104
 105                     // spkacChallenge
 106                     this.csr = "SPKAC=" + cleanedSPKAC;
 107                     this.csrType = CSRType.SPKAC;
 108
 109                 } else {
 110                     login = "1".equals(req.getParameter("login"));
 111                     String hashAlg = req.getParameter("hash_alg");
 112                     if (hashAlg != null) {
 113                         selectedDigest = Digest.valueOf(hashAlg);
 114                     }
 115                     if (req.getParameter("CCA") == null) {
 116                         outputError(out, req, "You need to accept the CCA.");
 117                         return false;
 118                     }
 119                     System.out.println("issuing " + selectedDigest);
 120                     result = new Certificate(LoginPage.getUser(req).getId(), "/commonName=CAcert WoT User", selectedDigest.toString(), this.csr, this.csrType, CertificateProfile.getById(1));
 121                     result.issue().waitFor(60000);
 122                     return true;
 123                 }
 124             } catch (IOException e) {
 125                 e.printStackTrace();
 126             } catch (IllegalArgumentException e) {
 127                 throw new GigiApiException("Certificate Request format is invalid.");
 128             } catch (GeneralSecurityException e) {
 129                 throw new GigiApiException("Certificate Request format is invalid.");
 130             } catch (InterruptedException e) {
 131                 e.printStackTrace();
 132             } catch (SQLException e) {
 133                 throw new GigiApiException(e);
 134             }
 135         } catch (GigiApiException e) {
 136             e.format(out, Page.getLanguage(req));
 137         }
 138         return false;
 139     }
 140
 141     private void checkKeyStrength(PublicKey pk, PrintWriter out) {
 142         out.println("Type: " + pk.getAlgorithm() + "<br/>");
 143         if (pk instanceof RSAPublicKey) {
 144             out.println("Exponent: " + ((RSAPublicKey) pk).getPublicExponent() + "<br/>");
 145             out.println("Length: " + ((RSAPublicKey) pk).getModulus().bitLength());
 146         } else if (pk instanceof DSAPublicKey) {
 147             DSAPublicKey dpk = (DSAPublicKey) pk;
 148             out.println("Length: " + dpk.getY().bitLength() + "<br/>");
 149             out.println(dpk.getParams());
 150         } else if (pk instanceof ECPublicKey) {
 151             ECPublicKey epk = (ECPublicKey) pk;
 152             out.println("Length-x: " + epk.getW().getAffineX().bitLength() + "<br/>");
 153             out.println("Length-y: " + epk.getW().getAffineY().bitLength() + "<br/>");
 154             out.println(epk.getParams().getCurve());
 155         }
 156     }
 157
 158     private static PKCS10 parseCSR(String csr) throws IOException, GeneralSecurityException {
 159         return new PKCS10(PEM.decode("(NEW )?CERTIFICATE REQUEST", csr));
 160     }
 161
 162     private static String getSignatureAlgorithm(byte[] data) throws IOException {
 163         DerInputStream in = new DerInputStream(data);
 164         DerValue[] seq = in.getSequence(3);
 165         return AlgorithmId.parse(seq[1]).getName();
 166     }
 167
 168     @Override
 169     public void output(PrintWriter out, Language l, Map<String, Object> vars) {
 170         if (csr == null) {
 171             HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
 172             vars2.put("csrf", getCSRFToken());
 173             vars2.put("csrf_name", getCsrfFieldName());
 174             vars2.put("spkacChallenge", spkacChallenge);
 175             tIni.output(out, l, vars2);
 176             return;
 177         } else {
 178             super.output(out, l, vars);
 179         }
 180     }
 181
 182     @Override
 183     protected void outputContent(PrintWriter out, Language l, Map<String, Object> vars) {
 184         HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
 185         vars2.put("CCA", "<a href='/policy/CAcertCommunityAgreement.html'>CCA</a>");
 186
 187         final EmailAddress[] ea = u.getEmails();
 188         vars2.put("emails", new IterableDataset() {
 189
 190             int count;
 191
 192             @Override
 193             public boolean next(Language l, Map<String, Object> vars) {
 194                 if (count >= ea.length) {
 195                     return false;
 196                 }
 197                 vars.put("id", ea[count].getId());
 198                 vars.put("value", ea[count].getAddress());
 199                 count++;
 200                 return true;
 201             }
 202         });
 203         vars2.put("hashs", new HashAlgorithms(selectedDigest));
 204         t.output(out, l, vars2);
 205     }
 206 }