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

   1 package org.cacert.gigi.pages.account;
   2
   3 import java.io.BufferedReader;
   4 import java.io.IOException;
   5 import java.io.InputStreamReader;
   6 import java.io.OutputStream;
   7 import java.io.PrintWriter;
   8 import java.security.GeneralSecurityException;
   9 import java.security.PublicKey;
  10 import java.security.interfaces.DSAPublicKey;
  11 import java.security.interfaces.ECPublicKey;
  12 import java.security.interfaces.RSAPublicKey;
  13 import java.sql.SQLException;
  14 import java.util.Base64;
  15 import java.util.HashMap;
  16 import java.util.Map;
  17
  18 import javax.servlet.http.HttpServletRequest;
  19
  20 import org.cacert.gigi.Certificate;
  21 import org.cacert.gigi.Digest;
  22 import org.cacert.gigi.EmailAddress;
  23 import org.cacert.gigi.GigiApiException;
  24 import org.cacert.gigi.Language;
  25 import org.cacert.gigi.User;
  26 import org.cacert.gigi.Certificate.CSRType;
  27 import org.cacert.gigi.output.Form;
  28 import org.cacert.gigi.output.template.HashAlgorithms;
  29 import org.cacert.gigi.output.template.IterableDataset;
  30 import org.cacert.gigi.output.template.Template;
  31 import org.cacert.gigi.pages.LoginPage;
  32 import org.cacert.gigi.pages.Page;
  33 import org.cacert.gigi.util.RandomToken;
  34
  35 import sun.security.pkcs10.PKCS10;
  36
  37 /**
  38  * This class represents a form that is used for issuing certificates. This
  39  * class uses "sun.security" and therefore needs "-XDignore.symbol.file"
  40  */
  41 public class IssueCertificateForm extends Form {
  42
  43     User u;
  44
  45     Digest selectedDigest = Digest.getDefault();
  46
  47     boolean login;
  48
  49     String csr;
  50
  51     private final static Template t = new Template(IssueCertificateForm.class.getResource("IssueCertificateForm.templ"));
  52
  53     private final static Template tIni = new Template(MailCertificateAdd.class.getResource("RequestCertificate.templ"));
  54
  55     String spkacChallange;
  56
  57     public IssueCertificateForm(HttpServletRequest hsr) {
  58         super(hsr);
  59         u = LoginPage.getUser(hsr);
  60         spkacChallange = RandomToken.generateToken(16);
  61     }
  62
  63     Certificate result;
  64
  65     private CSRType csrType;
  66
  67     public Certificate getResult() {
  68         return result;
  69     }
  70
  71     @Override
  72     public boolean submit(PrintWriter out, HttpServletRequest req) {
  73         String csr = req.getParameter("CSR");
  74         String spkac = req.getParameter("SPKAC");
  75         try {
  76             if (csr != null) {
  77                 PKCS10 parsed = parseCSR(csr);
  78                 out.println(parsed.getSubjectName().getCommonName());
  79                 out.println(parsed.getSubjectName().getCountry());
  80                 out.println("CSR DN: " + parsed.getSubjectName() + "<br/>");
  81                 PublicKey pk = parsed.getSubjectPublicKeyInfo();
  82                 out.println("Type: " + pk.getAlgorithm() + "<br/>");
  83                 if (pk instanceof RSAPublicKey) {
  84                     out.println("Exponent: " + ((RSAPublicKey) pk).getPublicExponent() + "<br/>");
  85                     out.println("Length: " + ((RSAPublicKey) pk).getModulus().bitLength());
  86                 } else if (pk instanceof DSAPublicKey) {
  87                     DSAPublicKey dpk = (DSAPublicKey) pk;
  88                     out.println("Length: " + dpk.getY().bitLength() + "<br/>");
  89                     out.println(dpk.getParams());
  90                 } else if (pk instanceof ECPublicKey) {
  91                     ECPublicKey epk = (ECPublicKey) pk;
  92                     out.println("Length-x: " + epk.getW().getAffineX().bitLength() + "<br/>");
  93                     out.println("Length-y: " + epk.getW().getAffineY().bitLength() + "<br/>");
  94                     out.println(epk.getParams().getCurve());
  95                 }
  96                 out.println("<br/>digest: sha256<br/>");
  97                 this.csr = csr;
  98                 this.csrType = CSRType.CSR;
  99             } else if (spkac != null) {
 100                 String cleanedSPKAC = "SPKAC=" + spkac.replaceAll("[\r\n]", "");
 101                 try {
 102                     checkSPKAC(cleanedSPKAC, spkacChallange);
 103                     this.csr = cleanedSPKAC;
 104                     this.csrType = CSRType.SPKAC;
 105                 } catch (GigiApiException e) {
 106                     e.format(out, Page.getLanguage(req));
 107                 }
 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);
 121                 try {
 122                     result.issue().waitFor(60000);
 123                     return true;
 124                 } catch (SQLException e) {
 125                     e.printStackTrace();
 126                 } catch (InterruptedException e) {
 127                     e.printStackTrace();
 128                 }
 129                 return false;
 130             }
 131         } catch (IOException e) {
 132             e.printStackTrace();
 133         } catch (GeneralSecurityException e) {
 134             e.printStackTrace();
 135         }
 136         return false;
 137     }
 138
 139     private static void checkSPKAC(String csr, String spkacChallange) throws IOException, GigiApiException {
 140         Process p = Runtime.getRuntime().exec(new String[] {
 141                 "openssl", "spkac", "-verify"
 142         });
 143         OutputStream outputStream = p.getOutputStream();
 144         outputStream.write(csr.getBytes());
 145         outputStream.flush();
 146         outputStream.close();
 147         BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream(), "UTF-8"));
 148         String line;
 149         String challenge = null;
 150         while ((line = br.readLine()) != null) {
 151             line = line.trim();
 152             String challengePrefix = "Challenge String: ";
 153             if (line.startsWith(challengePrefix)) {
 154                 challenge = line.substring(challengePrefix.length());
 155             }
 156         }
 157         GigiApiException gae = new GigiApiException();
 158         if ( !spkacChallange.equals(challenge)) {
 159             gae.mergeInto(new GigiApiException("The challenge-response code of your certificate request did not match. Can't continue with certificaterequest."));
 160         }
 161         try {
 162             if (p.waitFor() != 0) {
 163                 gae.mergeInto(new GigiApiException("The signature of your certificate request is invalid. Can't continue with certificaterequest."));
 164             }
 165         } catch (InterruptedException e) {
 166             e.printStackTrace();
 167         }
 168         if ( !gae.isEmpty()) {
 169             throw gae;
 170         }
 171     }
 172
 173     private PKCS10 parseCSR(String csr) throws IOException, GeneralSecurityException {
 174         csr = csr.replaceFirst("-----BEGIN (NEW )?CERTIFICATE REQUEST-----", "");
 175         csr = csr.replaceFirst("-----END (NEW )?CERTIFICATE REQUEST-----", "");
 176         csr = csr.replace("\r", "");
 177         csr = csr.replace("\n", "");
 178         byte[] b = Base64.getDecoder().decode(csr);
 179         // Also checks signature validity
 180         return new PKCS10(b);
 181     }
 182
 183     @Override
 184     public void output(PrintWriter out, Language l, Map<String, Object> vars) {
 185         if (csr == null) {
 186             HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
 187             vars2.put("csrf", getCSRFToken());
 188             vars2.put("csrf_name", getCsrfFieldName());
 189             vars2.put("spkacChallange", spkacChallange);
 190             tIni.output(out, l, vars2);
 191             return;
 192         } else {
 193             super.output(out, l, vars);
 194         }
 195     }
 196
 197     @Override
 198     protected void outputContent(PrintWriter out, Language l, Map<String, Object> vars) {
 199         HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
 200         vars2.put("CCA", "<a href='/policy/CAcertCommunityAgreement.html'>CCA</a>");
 201
 202         final EmailAddress[] ea = u.getEmails();
 203         vars2.put("emails", new IterableDataset() {
 204
 205             int count;
 206
 207             @Override
 208             public boolean next(Language l, Map<String, Object> vars) {
 209                 if (count >= ea.length) {
 210                     return false;
 211                 }
 212                 vars.put("id", ea[count].getId());
 213                 vars.put("value", ea[count].getAddress());
 214                 count++;
 215                 return true;
 216             }
 217         });
 218         vars2.put("hashs", new HashAlgorithms(selectedDigest));
 219         t.output(out, l, vars2);
 220     }
 221 }