tests/org/cacert/gigi/pages/account/TestCertificateAdd.java

   1 package org.cacert.gigi.pages.account;
   2
   3 import static org.hamcrest.CoreMatchers.*;
   4 import static org.junit.Assert.*;
   5
   6 import java.io.ByteArrayInputStream;
   7 import java.io.IOException;
   8 import java.io.InputStreamReader;
   9 import java.io.OutputStream;
  10 import java.io.UnsupportedEncodingException;
  11 import java.net.HttpURLConnection;
  12 import java.net.MalformedURLException;
  13 import java.net.URL;
  14 import java.net.URLConnection;
  15 import java.net.URLEncoder;
  16 import java.security.GeneralSecurityException;
  17 import java.security.KeyPair;
  18 import java.security.Signature;
  19 import java.security.cert.Certificate;
  20 import java.security.cert.CertificateException;
  21 import java.security.cert.CertificateFactory;
  22 import java.security.cert.X509Certificate;
  23 import java.text.SimpleDateFormat;
  24 import java.util.Arrays;
  25 import java.util.Base64;
  26 import java.util.Calendar;
  27 import java.util.Date;
  28 import java.util.TimeZone;
  29 import java.util.Vector;
  30 import java.util.regex.Matcher;
  31 import java.util.regex.Pattern;
  32
  33 import org.cacert.gigi.crypto.SPKAC;
  34 import org.cacert.gigi.dbObjects.Digest;
  35 import org.cacert.gigi.pages.account.certs.CertificateAdd;
  36 import org.cacert.gigi.pages.account.certs.CertificateRequest;
  37 import org.cacert.gigi.testUtils.ClientTest;
  38 import org.cacert.gigi.testUtils.IOUtils;
  39 import org.cacert.gigi.util.PEM;
  40 import org.junit.Test;
  41
  42 import sun.security.pkcs.PKCS7;
  43 import sun.security.pkcs.PKCS9Attribute;
  44 import sun.security.pkcs10.PKCS10Attribute;
  45 import sun.security.pkcs10.PKCS10Attributes;
  46 import sun.security.util.ObjectIdentifier;
  47 import sun.security.x509.CertificateExtensions;
  48 import sun.security.x509.DNSName;
  49 import sun.security.x509.ExtendedKeyUsageExtension;
  50 import sun.security.x509.GeneralName;
  51 import sun.security.x509.GeneralNameInterface;
  52 import sun.security.x509.GeneralNames;
  53 import sun.security.x509.RFC822Name;
  54 import sun.security.x509.SubjectAlternativeNameExtension;
  55 import sun.security.x509.X509Key;
  56
  57 public class TestCertificateAdd extends ClientTest {
  58
  59     KeyPair kp = generateKeypair();
  60
  61     String csrf;
  62
  63     public TestCertificateAdd() throws GeneralSecurityException, IOException {
  64         TestDomain.addDomain(cookie, uniq + ".tld");
  65
  66     }
  67
  68     @Test
  69     public void testSimpleServer() throws IOException, GeneralSecurityException {
  70         PKCS10Attributes atts = buildAtts(new ObjectIdentifier[] {
  71             CertificateRequest.OID_KEY_USAGE_SSL_SERVER
  72         }, new DNSName(uniq + ".tld"));
  73
  74         String pem = generatePEMCSR(kp, "CN=a." + uniq + ".tld", atts);
  75
  76         String[] res = fillOutForm("CSR=" + URLEncoder.encode(pem, "UTF-8"));
  77         assertArrayEquals(new String[] {
  78                 "server", "CAcert WoT User", "dns:a." + uniq + ".tld\ndns:" + uniq + ".tld\n", Digest.SHA256.toString()
  79         }, res);
  80     }
  81
  82     @Test
  83     public void testSimpleMail() throws IOException, GeneralSecurityException {
  84         PKCS10Attributes atts = buildAtts(new ObjectIdentifier[] {
  85             CertificateRequest.OID_KEY_USAGE_EMAIL_PROTECTION
  86         }, new DNSName("a." + uniq + ".tld"), new DNSName("b." + uniq + ".tld"), new RFC822Name(email));
  87
  88         String pem = generatePEMCSR(kp, "CN=a b", atts, "SHA384WithRSA");
  89
  90         String[] res = fillOutForm("CSR=" + URLEncoder.encode(pem, "UTF-8"));
  91         assertArrayEquals(new String[] {
  92                 "mail", "a b", "email:" + email + "\ndns:a." + uniq + ".tld\ndns:b." + uniq + ".tld\n", Digest.SHA384.toString()
  93         }, res);
  94     }
  95
  96     @Test
  97     public void testSimpleClient() throws IOException, GeneralSecurityException {
  98         PKCS10Attributes atts = buildAtts(new ObjectIdentifier[] {
  99             CertificateRequest.OID_KEY_USAGE_SSL_CLIENT
 100         }, new RFC822Name(email));
 101
 102         String pem = generatePEMCSR(kp, "CN=a b,email=" + email, atts, "SHA512WithRSA");
 103
 104         String[] res = fillOutForm("CSR=" + URLEncoder.encode(pem, "UTF-8"));
 105         assertArrayEquals(new String[] {
 106                 "client", "a b", "email:" + email + "\n", Digest.SHA512.toString()
 107         }, res);
 108     }
 109
 110     @Test
 111     public void testSPKAC() throws GeneralSecurityException, IOException {
 112         testSPKAC(false);
 113         testSPKAC(true);
 114     }
 115
 116     @Test
 117     public void testIssue() throws IOException, GeneralSecurityException {
 118         PKCS10Attributes atts = buildAtts(new ObjectIdentifier[] {
 119             CertificateRequest.OID_KEY_USAGE_SSL_CLIENT
 120         }, new RFC822Name(email));
 121
 122         String pem = generatePEMCSR(kp, "CN=a b,email=" + email, atts, "SHA512WithRSA");
 123
 124         String[] res = fillOutForm("CSR=" + URLEncoder.encode(pem, "UTF-8"));
 125         assertArrayEquals(new String[] {
 126                 "client", "a b", "email:" + email + "\n", Digest.SHA512.toString()
 127         }, res);
 128
 129         HttpURLConnection huc = (HttpURLConnection) ncert.openConnection();
 130         huc.setRequestProperty("Cookie", cookie);
 131         huc.setDoOutput(true);
 132         OutputStream out = huc.getOutputStream();
 133         out.write(("csrf=" + URLEncoder.encode(csrf, "UTF-8")).getBytes("UTF-8"));
 134         out.write(("&CN=CAcert+WoT+User&profile=client&SANs=" + URLEncoder.encode("email:" + email + "\n", "UTF-8")).getBytes("UTF-8"));
 135         out.write(("&hash_alg=SHA512&tos_agree=y").getBytes("UTF-8"));
 136         URLConnection uc = authenticate(new URL(huc.getHeaderField("Location") + ".crt"));
 137         String crt = IOUtils.readURL(new InputStreamReader(uc.getInputStream(), "UTF-8"));
 138
 139         uc = authenticate(new URL(huc.getHeaderField("Location") + ".cer"));
 140         byte[] cer = IOUtils.readURL(uc.getInputStream());
 141         assertArrayEquals(cer, PEM.decode("CERTIFICATE", crt));
 142
 143         uc = authenticate(new URL(huc.getHeaderField("Location") + ".cer?install&chain"));
 144         byte[] pkcs7 = IOUtils.readURL(uc.getInputStream());
 145         PKCS7 p7 = new PKCS7(pkcs7);
 146         byte[] sub = verifyChain(p7.getCertificates());
 147         assertArrayEquals(cer, sub);
 148         assertEquals("application/x-x509-user-cert", uc.getHeaderField("Content-type"));
 149
 150         uc = authenticate(new URL(huc.getHeaderField("Location")));
 151         String gui = IOUtils.readURL(uc);
 152         Pattern p = Pattern.compile("-----BEGIN CERTIFICATE-----[^-]+-----END CERTIFICATE-----");
 153         Matcher m = p.matcher(gui);
 154         assertTrue(m.find());
 155         byte[] cert = PEM.decode("CERTIFICATE", m.group(0));
 156         Certificate c = CertificateFactory.getInstance("X509").generateCertificate(new ByteArrayInputStream(cert));
 157         gui = c.toString();
 158         assertThat(gui, containsString("clientAuth"));
 159         assertThat(gui, containsString("CN=CAcert WoT User"));
 160         assertThat(gui, containsString("SHA512withRSA"));
 161         assertThat(gui, containsString("RFC822Name: " + email));
 162
 163     }
 164
 165     private byte[] verifyChain(X509Certificate[] x509Certificates) throws GeneralSecurityException {
 166         X509Certificate current = null;
 167         nextCert:
 168         while (true) {
 169             for (int i = 0; i < x509Certificates.length; i++) {
 170                 X509Certificate cert = x509Certificates[i];
 171                 if (current == null) {
 172                     if (cert.getSubjectX500Principal().equals(cert.getIssuerX500Principal())) {
 173                         current = cert;
 174                         continue nextCert;
 175                     }
 176                 } else {
 177                     if (cert.getSubjectX500Principal().equals(cert.getIssuerX500Principal())) {
 178                         continue;
 179                     }
 180                     if (current.getSubjectX500Principal().equals(cert.getIssuerX500Principal())) {
 181                         Signature s = Signature.getInstance(cert.getSigAlgName());
 182                         s.initVerify(current.getPublicKey());
 183                         s.update(cert.getTBSCertificate());
 184                         assertTrue(s.verify(cert.getSignature()));
 185                         current = cert;
 186                         continue nextCert;
 187                     }
 188                 }
 189             }
 190             assertNotNull(current);
 191             return current.getEncoded();
 192         }
 193     }
 194
 195     @Test
 196     public void testValidityPeriodCalendar() throws IOException, GeneralSecurityException {
 197         testCertificateValidityRelative(Calendar.YEAR, 2, "2y", true);
 198         testCertificateValidityRelative(Calendar.YEAR, 1, "1y", true);
 199         testCertificateValidityRelative(Calendar.MONTH, 3, "3m", true);
 200         testCertificateValidityRelative(Calendar.MONTH, 7, "7m", true);
 201         testCertificateValidityRelative(Calendar.MONTH, 13, "13m", true);
 202
 203         testCertificateValidityRelative(Calendar.MONTH, 13, "-1m", false);
 204     }
 205
 206     @Test
 207     public void testValidityPeriodWhishStart() throws IOException, GeneralSecurityException {
 208         long now = System.currentTimeMillis();
 209         final long MS_PER_DAY = 24 * 60 * 60 * 1000;
 210         now -= now % MS_PER_DAY;
 211         now += MS_PER_DAY;
 212         SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
 213         sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
 214
 215         Date start = new Date(now);
 216         Date end = new Date(now + MS_PER_DAY * 10);
 217         String validity = "&validFrom=" + sdf.format(start) + "&validity=" + sdf.format(end);
 218         X509Certificate res = createCertWithValidity(validity);
 219         assertNotNull(validity, res);
 220         assertEquals(start, res.getNotBefore());
 221         assertEquals(end, res.getNotAfter());
 222     }
 223
 224     private void testCertificateValidityRelative(int field, int amount, String length, boolean shouldsucceed) throws IOException, GeneralSecurityException, UnsupportedEncodingException, MalformedURLException, CertificateException {
 225         X509Certificate parsed = createCertWithValidity("&validFrom=now&validity=" + length);
 226         if (parsed == null) {
 227             assertTrue( !shouldsucceed);
 228             return;
 229         } else {
 230             assertTrue(shouldsucceed);
 231         }
 232
 233         long now = System.currentTimeMillis();
 234         Date start = parsed.getNotBefore();
 235         Date end = parsed.getNotAfter();
 236         Calendar c = Calendar.getInstance();
 237         c.setTimeZone(TimeZone.getTimeZone("UTC"));
 238         c.setTime(start);
 239         c.add(field, amount);
 240         assertTrue(Math.abs(start.getTime() - now) < 10000);
 241         assertEquals(c.getTime(), end);
 242     }
 243
 244     private X509Certificate createCertWithValidity(String validity) throws IOException, GeneralSecurityException, UnsupportedEncodingException, MalformedURLException, CertificateException {
 245         PKCS10Attributes atts = buildAtts(new ObjectIdentifier[] {
 246             CertificateRequest.OID_KEY_USAGE_SSL_CLIENT
 247         }, new RFC822Name(email));
 248
 249         String pem = generatePEMCSR(kp, "CN=a b", atts, "SHA512WithRSA");
 250         fillOutForm("CSR=" + URLEncoder.encode(pem, "UTF-8"));
 251
 252         HttpURLConnection huc = (HttpURLConnection) ncert.openConnection();
 253         huc.setRequestProperty("Cookie", cookie);
 254         huc.setDoOutput(true);
 255         OutputStream out = huc.getOutputStream();
 256         out.write(("csrf=" + URLEncoder.encode(csrf, "UTF-8")).getBytes("UTF-8"));
 257         out.write(("&profile=client&CN=" + CertificateRequest.DEFAULT_CN + "&SANs=" + URLEncoder.encode("email:" + email + "\n", "UTF-8")).getBytes("UTF-8"));
 258         out.write(("&hash_alg=SHA512&tos_agree=y&").getBytes("UTF-8"));
 259         out.write(validity.getBytes("UTF-8"));
 260
 261         String certurl = huc.getHeaderField("Location");
 262         if (certurl == null) {
 263             return null;
 264         }
 265         URLConnection uc = authenticate(new URL(certurl + ".crt"));
 266         String crt = IOUtils.readURL(new InputStreamReader(uc.getInputStream(), "UTF-8"));
 267
 268         CertificateFactory cf = CertificateFactory.getInstance("X.509");
 269         X509Certificate parsed = (X509Certificate) cf.generateCertificate(new ByteArrayInputStream(crt.getBytes("UTF-8")));
 270         return parsed;
 271     }
 272
 273     private URLConnection authenticate(URL url) throws IOException {
 274         URLConnection uc = url.openConnection();
 275         uc.setRequestProperty("Cookie", cookie);
 276         return uc;
 277     }
 278
 279     protected String testSPKAC(boolean correctChallange) throws GeneralSecurityException, IOException {
 280         HttpURLConnection uc = (HttpURLConnection) ncert.openConnection();
 281         uc.setRequestProperty("Cookie", cookie);
 282         String s = IOUtils.readURL(uc);
 283
 284         csrf = extractPattern(s, Pattern.compile("<input [^>]*name='csrf' [^>]*value='([^']*)'>"));
 285         String challenge = extractPattern(s, Pattern.compile("<keygen [^>]*name=\"SPKAC\" [^>]*challenge=\"([^\"]*)\"/>"));
 286
 287         SPKAC spk = new SPKAC((X509Key) kp.getPublic(), challenge + (correctChallange ? "" : "b"));
 288         Signature sign = Signature.getInstance("SHA512WithRSA");
 289         sign.initSign(kp.getPrivate());
 290         try {
 291             String[] res = fillOutFormDirect("SPKAC=" + URLEncoder.encode(Base64.getEncoder().encodeToString(spk.getEncoded(sign)), "UTF-8"));
 292             if ( !correctChallange) {
 293                 fail("Should not succeed with wrong challange.");
 294             }
 295             assertArrayEquals(new String[] {
 296                     "client", CertificateRequest.DEFAULT_CN, "", Digest.SHA512.toString()
 297             }, res);
 298         } catch (Error e) {
 299             assertTrue(e.getMessage().startsWith("<div>Challenge mismatch"));
 300         }
 301         return csrf;
 302     }
 303
 304     private PKCS10Attributes buildAtts(ObjectIdentifier[] ekuOIDs, GeneralNameInterface... SANs) throws IOException {
 305         CertificateExtensions attributeValue = new CertificateExtensions();
 306         GeneralNames names = new GeneralNames();
 307
 308         for (GeneralNameInterface name : SANs) {
 309             names.add(new GeneralName(name));
 310         }
 311         attributeValue.set("SANs", new SubjectAlternativeNameExtension(names));
 312         PKCS10Attributes atts = new PKCS10Attributes(new PKCS10Attribute[] {
 313             new PKCS10Attribute(PKCS9Attribute.EXTENSION_REQUEST_OID, attributeValue)
 314         });
 315         ExtendedKeyUsageExtension eku = new ExtendedKeyUsageExtension(//
 316                 new Vector<>(Arrays.<ObjectIdentifier>asList(ekuOIDs)));
 317         attributeValue.set("eku", eku);
 318         return atts;
 319     }
 320
 321     private final URL ncert = new URL("https://" + getServerName() + CertificateAdd.PATH);
 322
 323     private String[] fillOutForm(String pem) throws IOException {
 324         HttpURLConnection uc = (HttpURLConnection) ncert.openConnection();
 325         uc.setRequestProperty("Cookie", cookie);
 326         csrf = getCSRF(uc);
 327         return fillOutFormDirect(pem);
 328
 329     }
 330
 331     private String[] fillOutFormDirect(String pem) throws IOException {
 332
 333         HttpURLConnection uc = (HttpURLConnection) ncert.openConnection();
 334         uc.setRequestProperty("Cookie", cookie);
 335         uc.setDoOutput(true);
 336         uc.getOutputStream().write(("csrf=" + URLEncoder.encode(csrf, "UTF-8") + "&" + pem).getBytes("UTF-8"));
 337         uc.getOutputStream().flush();
 338
 339         return extractFormData(uc);
 340     }
 341
 342     private String[] extractFormData(HttpURLConnection uc) throws IOException, Error {
 343         String result = IOUtils.readURL(uc);
 344         if (result.contains("<div class='formError'>")) {
 345             String s = fetchStartErrorMessage(result);
 346             throw new Error(s);
 347         }
 348
 349         String profileKey = extractPattern(result, Pattern.compile("<option value=\"([^\"]*)\" selected>"));
 350         String resultingCN = extractPattern(result, Pattern.compile("<input [^>]*name='CN' [^>]*value='([^']*)'/>"));
 351         String txt = extractPattern(result, Pattern.compile("<textarea [^>]*name='SANs' [^>]*>([^<]*)</textarea>"));
 352         String md = extractPattern(result, Pattern.compile("<input type=\"radio\" [^>]*name=\"hash_alg\" value=\"([^\"]*)\" checked='checked'/>"));
 353         return new String[] {
 354                 profileKey, resultingCN, txt, md
 355         };
 356     }
 357
 358     private String extractPattern(String result, Pattern p) {
 359         Matcher m = p.matcher(result);
 360         assertTrue(m.find());
 361         String resultingCN = m.group(1);
 362         return resultingCN;
 363     }
 364 }