src/org/cacert/gigi/pages/account/IssueCertificateForm.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.Digest;
  20 import org.cacert.gigi.EmailAddress;
  21 import org.cacert.gigi.GigiApiException;
  22 import org.cacert.gigi.Language;
  23 import org.cacert.gigi.User;
  24 import org.cacert.gigi.crypto.SPKAC;
  25 import org.cacert.gigi.output.Form;
  26 import org.cacert.gigi.output.template.HashAlgorithms;
  27 import org.cacert.gigi.output.template.IterableDataset;
  28 import org.cacert.gigi.output.template.Template;
  29 import org.cacert.gigi.pages.LoginPage;
  30 import org.cacert.gigi.pages.Page;
  31 import org.cacert.gigi.util.PEM;
  32 import org.cacert.gigi.util.RandomToken;
  33
  34 import sun.security.pkcs10.PKCS10;
  35 import sun.security.util.DerInputStream;
  36 import sun.security.util.DerValue;
  37 import sun.security.x509.AlgorithmId;
  38
  39 /**
  40  * This class represents a form that is used for issuing certificates. This
  41  * class uses "sun.security" and therefore needs "-XDignore.symbol.file"
  42  */
  43 public class IssueCertificateForm extends Form {
  44
  45     User u;
  46
  47     Digest selectedDigest = Digest.getDefault();
  48
  49     boolean login;
  50
  51     String csr;
  52
  53     private final static Template t = new Template(IssueCertificateForm.class.getResource("IssueCertificateForm.templ"));
  54
  55     private final static Template tIni = new Template(MailCertificateAdd.class.getResource("RequestCertificate.templ"));
  56
  57     String spkacChallange;
  58
  59     public IssueCertificateForm(HttpServletRequest hsr) {
  60         super(hsr);
  61         u = Page.getUser(hsr);
  62         spkacChallange = RandomToken.generateToken(16);
  63     }
  64
  65     Certificate result;
  66
  67     private CSRType csrType;
  68
  69     public Certificate getResult() {
  70         return result;
  71     }
  72
  73     @Override
  74     public boolean submit(PrintWriter out, HttpServletRequest req) {
  75         String csr = req.getParameter("CSR");
  76         String spkac = req.getParameter("SPKAC");
  77         try {
  78             try {
  79                 if (csr != null) {
  80                     byte[] data = PEM.decode("(NEW )?CERTIFICATE REQUEST", csr);
  81                     PKCS10 parsed = new PKCS10(data);
  82
  83                     out.println(parsed.getSubjectName().getCommonName());
  84                     out.println(parsed.getSubjectName().getCountry());
  85                     out.println("CSR DN: " + parsed.getSubjectName() + "<br/>");
  86                     PublicKey pk = parsed.getSubjectPublicKeyInfo();
  87                     checkKeyStrength(pk, out);
  88                     String sign = getSignatureAlgorithm(data);
  89                     out.println("<br/>digest: " + sign + "<br/>");
  90
  91                     this.csr = csr;
  92                     this.csrType = CSRType.CSR;
  93                 } else if (spkac != null) {
  94                     String cleanedSPKAC = spkac.replaceAll("[\r\n]", "");
  95                     byte[] data = Base64.getDecoder().decode(cleanedSPKAC);
  96                     SPKAC parsed = new SPKAC(data);
  97                     if ( !parsed.getChallenge().equals(spkacChallange)) {
  98                         throw new GigiApiException("Challange mismatch");
  99                     }
 100                     checkKeyStrength(parsed.getPubkey(), out);
 101                     String sign = getSignatureAlgorithm(data);
 102                     out.println("<br/>digest: " + sign + "<br/>");
 103
 104                     // spkacChallange
 105                     this.csr = "SPKAC=" + cleanedSPKAC;
 106                     this.csrType = CSRType.SPKAC;
 107
 108                 } else {
 109                     login = "1".equals(req.getParameter("login"));
 110                     String hashAlg = req.getParameter("hash_alg");
 111                     if (hashAlg != null) {
 112                         selectedDigest = Digest.valueOf(hashAlg);
 113                     }
 114                     if (req.getParameter("CCA") == null) {
 115                         outputError(out, req, "You need to accept the CCA.");
 116                         return false;
 117                     }
 118                     System.out.println("issuing " + selectedDigest);
 119                     result = new Certificate(LoginPage.getUser(req).getId(), "/commonName=CAcert WoT User", selectedDigest.toString(), this.csr, this.csrType);
 120                     result.issue().waitFor(60000);
 121                     return true;
 122                 }
 123             } catch (IOException e) {
 124                 e.printStackTrace();
 125             } catch (IllegalArgumentException e) {
 126                 throw new GigiApiException("Certificate Request format is invalid.");
 127             } catch (GeneralSecurityException e) {
 128                 throw new GigiApiException("Certificate Request format is invalid.");
 129             } catch (InterruptedException e) {
 130                 e.printStackTrace();
 131             } catch (SQLException e) {
 132                 throw new GigiApiException(e);
 133             }
 134         } catch (GigiApiException e) {
 135             e.format(out, Page.getLanguage(req));
 136         }
 137         return false;
 138     }
 139
 140     private void checkKeyStrength(PublicKey pk, PrintWriter out) {
 141         out.println("Type: " + pk.getAlgorithm() + "<br/>");
 142         if (pk instanceof RSAPublicKey) {
 143             out.println("Exponent: " + ((RSAPublicKey) pk).getPublicExponent() + "<br/>");
 144             out.println("Length: " + ((RSAPublicKey) pk).getModulus().bitLength());
 145         } else if (pk instanceof DSAPublicKey) {
 146             DSAPublicKey dpk = (DSAPublicKey) pk;
 147             out.println("Length: " + dpk.getY().bitLength() + "<br/>");
 148             out.println(dpk.getParams());
 149         } else if (pk instanceof ECPublicKey) {
 150             ECPublicKey epk = (ECPublicKey) pk;
 151             out.println("Length-x: " + epk.getW().getAffineX().bitLength() + "<br/>");
 152             out.println("Length-y: " + epk.getW().getAffineY().bitLength() + "<br/>");
 153             out.println(epk.getParams().getCurve());
 154         }
 155     }
 156
 157     private static PKCS10 parseCSR(String csr) throws IOException, GeneralSecurityException {
 158         return new PKCS10(PEM.decode("(NEW )?CERTIFICATE REQUEST", csr));
 159     }
 160
 161     private static String getSignatureAlgorithm(byte[] data) throws IOException {
 162         DerInputStream in = new DerInputStream(data);
 163         DerValue[] seq = in.getSequence(3);
 164         return AlgorithmId.parse(seq[1]).getName();
 165     }
 166
 167     @Override
 168     public void output(PrintWriter out, Language l, Map<String, Object> vars) {
 169         if (csr == null) {
 170             HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
 171             vars2.put("csrf", getCSRFToken());
 172             vars2.put("csrf_name", getCsrfFieldName());
 173             vars2.put("spkacChallange", spkacChallange);
 174             tIni.output(out, l, vars2);
 175             return;
 176         } else {
 177             super.output(out, l, vars);
 178         }
 179     }
 180
 181     @Override
 182     protected void outputContent(PrintWriter out, Language l, Map<String, Object> vars) {
 183         HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
 184         vars2.put("CCA", "<a href='/policy/CAcertCommunityAgreement.html'>CCA</a>");
 185
 186         final EmailAddress[] ea = u.getEmails();
 187         vars2.put("emails", new IterableDataset() {
 188
 189             int count;
 190
 191             @Override
 192             public boolean next(Language l, Map<String, Object> vars) {
 193                 if (count >= ea.length) {
 194                     return false;
 195                 }
 196                 vars.put("id", ea[count].getId());
 197                 vars.put("value", ea[count].getAddress());
 198                 count++;
 199                 return true;
 200             }
 201         });
 202         vars2.put("hashs", new HashAlgorithms(selectedDigest));
 203         t.output(out, l, vars2);
 204     }
 205 }