1 package org.cacert.gigi.pages.account;
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.LinkedHashSet;
16 import java.util.TreeSet;
18 import javax.servlet.http.HttpServletRequest;
20 import org.cacert.gigi.Certificate;
21 import org.cacert.gigi.Certificate.CSRType;
22 import org.cacert.gigi.Certificate.SANType;
23 import org.cacert.gigi.Certificate.SubjectAlternateName;
24 import org.cacert.gigi.CertificateProfile;
25 import org.cacert.gigi.Digest;
26 import org.cacert.gigi.GigiApiException;
27 import org.cacert.gigi.User;
28 import org.cacert.gigi.crypto.SPKAC;
29 import org.cacert.gigi.localisation.Language;
30 import org.cacert.gigi.output.Form;
31 import org.cacert.gigi.output.template.HashAlgorithms;
32 import org.cacert.gigi.output.template.IterableDataset;
33 import org.cacert.gigi.output.template.Template;
34 import org.cacert.gigi.pages.LoginPage;
35 import org.cacert.gigi.pages.Page;
36 import org.cacert.gigi.util.PEM;
37 import org.cacert.gigi.util.RandomToken;
39 import sun.security.pkcs.PKCS9Attribute;
40 import sun.security.pkcs10.PKCS10;
41 import sun.security.pkcs10.PKCS10Attribute;
42 import sun.security.pkcs10.PKCS10Attributes;
43 import sun.security.util.DerInputStream;
44 import sun.security.util.DerValue;
45 import sun.security.util.ObjectIdentifier;
46 import sun.security.x509.AVA;
47 import sun.security.x509.AlgorithmId;
48 import sun.security.x509.CertificateExtensions;
49 import sun.security.x509.DNSName;
50 import sun.security.x509.ExtendedKeyUsageExtension;
51 import sun.security.x509.Extension;
52 import sun.security.x509.GeneralName;
53 import sun.security.x509.GeneralNameInterface;
54 import sun.security.x509.GeneralNames;
55 import sun.security.x509.PKIXExtensions;
56 import sun.security.x509.RDN;
57 import sun.security.x509.RFC822Name;
58 import sun.security.x509.SubjectAlternativeNameExtension;
59 import sun.security.x509.X500Name;
62 * This class represents a form that is used for issuing certificates. This
63 * class uses "sun.security" and therefore needs "-XDignore.symbol.file"
65 public class CertificateIssueForm extends Form {
67 public static final String DEFAULT_CN = "CAcert WoT User";
69 private final static Template t = new Template(CertificateIssueForm.class.getResource("CertificateIssueForm.templ"));
71 private final static Template tIni = new Template(CertificateAdd.class.getResource("RequestCertificate.templ"));
73 public static final ObjectIdentifier OID_KEY_USAGE_SSL_SERVER = ObjectIdentifier.newInternal(new int[] {
74 1, 3, 6, 1, 5, 5, 7, 3, 1
77 public static final ObjectIdentifier OID_KEY_USAGE_SSL_CLIENT = ObjectIdentifier.newInternal(new int[] {
78 1, 3, 6, 1, 5, 5, 7, 3, 2
81 public static final ObjectIdentifier OID_KEY_USAGE_CODESIGN = ObjectIdentifier.newInternal(new int[] {
82 1, 3, 6, 1, 5, 5, 7, 3, 3
85 public static final ObjectIdentifier OID_KEY_USAGE_EMAIL_PROTECTION = ObjectIdentifier.newInternal(new int[] {
86 1, 3, 6, 1, 5, 5, 7, 3, 4
89 public static final ObjectIdentifier OID_KEY_USAGE_TIMESTAMP = ObjectIdentifier.newInternal(new int[] {
90 1, 3, 6, 1, 5, 5, 7, 3, 8
93 public static final ObjectIdentifier OID_KEY_USAGE_OCSP = ObjectIdentifier.newInternal(new int[] {
94 1, 3, 6, 1, 5, 5, 7, 3, 9
99 private CSRType csrType;
103 String spkacChallenge;
105 public String CN = DEFAULT_CN;
107 Set<SubjectAlternateName> SANs = new LinkedHashSet<>();
109 Digest selectedDigest = Digest.getDefault();
113 CertificateProfile profile = CertificateProfile.getById(1);
115 public CertificateIssueForm(HttpServletRequest hsr) {
117 u = Page.getUser(hsr);
118 spkacChallenge = RandomToken.generateToken(16);
123 public Certificate getResult() {
128 public boolean submit(PrintWriter out, HttpServletRequest req) {
129 String csr = req.getParameter("CSR");
130 String spkac = req.getParameter("SPKAC");
134 byte[] data = PEM.decode("(NEW )?CERTIFICATE REQUEST", csr);
135 PKCS10 parsed = new PKCS10(data);
136 PKCS10Attributes atts = parsed.getAttributes();
138 for (PKCS10Attribute b : atts.getAttributes()) {
140 if ( !b.getAttributeId().equals((Object) PKCS9Attribute.EXTENSION_REQUEST_OID)) {
145 for (RDN r : parsed.getSubjectName().rdns()) {
146 for (AVA a : r.avas()) {
147 if (a.getObjectIdentifier().equals((Object) PKCS9Attribute.EMAIL_ADDRESS_OID)) {
148 SANs.add(new SubjectAlternateName(SANType.EMAIL, a.getValueString()));
149 } else if (a.getObjectIdentifier().equals((Object) X500Name.commonName_oid)) {
150 String value = a.getValueString();
151 if (value.contains(".") && !value.contains(" ")) {
152 SANs.add(new SubjectAlternateName(SANType.DNS, value));
156 } else if (a.getObjectIdentifier().equals((Object) PKIXExtensions.SubjectAlternativeName_Id)) {
157 // parse invalid SANs
162 for (Extension c : ((CertificateExtensions) b.getAttributeValue()).getAllExtensions()) {
163 if (c instanceof SubjectAlternativeNameExtension) {
165 SubjectAlternativeNameExtension san = (SubjectAlternativeNameExtension) c;
166 GeneralNames obj = san.get(SubjectAlternativeNameExtension.SUBJECT_NAME);
167 for (int i = 0; i < obj.size(); i++) {
168 GeneralName generalName = obj.get(i);
169 GeneralNameInterface peeled = generalName.getName();
170 if (peeled instanceof DNSName) {
171 SANs.add(new SubjectAlternateName(SANType.DNS, ((DNSName) peeled).getName()));
172 } else if (peeled instanceof RFC822Name) {
173 SANs.add(new SubjectAlternateName(SANType.EMAIL, ((RFC822Name) peeled).getName()));
176 } else if (c instanceof ExtendedKeyUsageExtension) {
177 ExtendedKeyUsageExtension ekue = (ExtendedKeyUsageExtension) c;
178 for (String s : ekue.getExtendedKeyUsage()) {
179 if (s.equals(OID_KEY_USAGE_SSL_SERVER.toString())) {
181 profile = CertificateProfile.getByName("server");
182 } else if (s.equals(OID_KEY_USAGE_SSL_CLIENT.toString())) {
184 profile = CertificateProfile.getByName("client");
185 } else if (s.equals(OID_KEY_USAGE_CODESIGN.toString())) {
187 } else if (s.equals(OID_KEY_USAGE_EMAIL_PROTECTION.toString())) {
189 profile = CertificateProfile.getByName("mail");
190 } else if (s.equals(OID_KEY_USAGE_TIMESTAMP.toString())) {
192 } else if (s.equals(OID_KEY_USAGE_OCSP.toString())) {
197 // Unknown requested extension
202 out.println(parsed.getSubjectName().getCommonName());
203 out.println(parsed.getSubjectName().getCountry());
205 out.println("CSR DN: " + parsed.getSubjectName() + "<br/>");
206 PublicKey pk = parsed.getSubjectPublicKeyInfo();
207 checkKeyStrength(pk, out);
208 String sign = getSignatureAlgorithm(data);
211 out.println("<br/>digest: " + sign + "<br/>");
214 this.csrType = CSRType.CSR;
215 } else if (spkac != null) {
216 String cleanedSPKAC = spkac.replaceAll("[\r\n]", "");
217 byte[] data = Base64.getDecoder().decode(cleanedSPKAC);
218 SPKAC parsed = new SPKAC(data);
219 if ( !parsed.getChallenge().equals(spkacChallenge)) {
220 throw new GigiApiException("Challenge mismatch");
222 checkKeyStrength(parsed.getPubkey(), out);
223 String sign = getSignatureAlgorithm(data);
225 out.println("<br/>digest: " + sign + "<br/>");
228 this.csr = "SPKAC=" + cleanedSPKAC;
229 this.csrType = CSRType.SPKAC;
232 login = "1".equals(req.getParameter("login"));
233 CN = req.getParameter("CN");
234 String hashAlg = req.getParameter("hash_alg");
235 if (hashAlg != null) {
236 selectedDigest = Digest.valueOf(hashAlg);
238 profile = CertificateProfile.getByName(req.getParameter("profile"));
242 Set<SubjectAlternateName> filteredSANs = new LinkedHashSet<>();
243 boolean server = profile.getKeyName().equals("server");
244 for (SubjectAlternateName san : parseSANBox(req.getParameter("SANs"))) {
245 if (san.getType() == SANType.DNS) {
246 if (u.isValidDomain(san.getName()) && server) {
248 pDNS = san.getName();
250 filteredSANs.add(san);
253 } else if (san.getType() == SANType.EMAIL) {
254 if (u.isValidEmail(san.getName()) && !server) {
256 pMail = san.getName();
258 filteredSANs.add(san);
262 outputError(out, req, "The requested Subject alternate name \"%s\" has been removed.",//
263 san.getType().toString().toLowerCase() + ":" + san.getName());
266 if ( !u.isValidName(CN) && !server && !CN.equals(DEFAULT_CN)) {
268 outputError(out, req, "The real name entered cannot be verified with your account.");
271 final StringBuffer subject = new StringBuffer();
272 if (server && pDNS != null) {
273 subject.append("/commonName=");
274 subject.append(pDNS);
276 outputError(out, req, "No email is included in this certificate.");
280 outputError(out, req, "No real name is included in this certificate.");
283 subject.append("/commonName=");
286 subject.append("/emailAddress=");
287 subject.append(pMail);
290 if (req.getParameter("CCA") == null) {
291 outputError(out, req, "You need to accept the CCA.");
297 result = new Certificate(LoginPage.getUser(req).getId(), subject.toString(), selectedDigest.toString(), //
298 this.csr, this.csrType, profile, SANs.toArray(new SubjectAlternateName[SANs.size()]));
299 result.issue().waitFor(60000);
302 } catch (IOException e) {
304 } catch (IllegalArgumentException e) {
306 throw new GigiApiException("Certificate Request format is invalid.");
307 } catch (GeneralSecurityException e) {
309 throw new GigiApiException("Certificate Request format is invalid.");
310 } catch (InterruptedException e) {
312 } catch (SQLException e) {
313 throw new GigiApiException(e);
315 } catch (GigiApiException e) {
316 e.format(out, Page.getLanguage(req));
321 private void guessDigest(String sign) {
322 if (sign.toLowerCase().startsWith("sha512")) {
323 selectedDigest = Digest.SHA512;
324 } else if (sign.toLowerCase().startsWith("sha384")) {
325 selectedDigest = Digest.SHA384;
329 private TreeSet<SubjectAlternateName> parseSANBox(String SANs) {
330 String[] SANparts = SANs.split("[\r\n]+|, *");
331 TreeSet<SubjectAlternateName> parsedNames = new TreeSet<>();
332 for (String SANline : SANparts) {
333 String[] parts = SANline.split(":", 2);
334 if (parts.length == 1) {
335 if (parts[0].trim().equals("")) {
338 if (parts[0].contains("@")) {
339 parsedNames.add(new SubjectAlternateName(SANType.EMAIL, parts[0]));
341 parsedNames.add(new SubjectAlternateName(SANType.DNS, parts[0]));
346 SANType t = Certificate.SANType.valueOf(parts[0].toUpperCase());
350 parsedNames.add(new SubjectAlternateName(t, parts[1]));
351 } catch (IllegalArgumentException e) {
359 private void checkKeyStrength(PublicKey pk, PrintWriter out) {
360 out.println("Type: " + pk.getAlgorithm() + "<br/>");
361 if (pk instanceof RSAPublicKey) {
362 out.println("Exponent: " + ((RSAPublicKey) pk).getPublicExponent() + "<br/>");
363 out.println("Length: " + ((RSAPublicKey) pk).getModulus().bitLength());
364 } else if (pk instanceof DSAPublicKey) {
365 DSAPublicKey dpk = (DSAPublicKey) pk;
366 out.println("Length: " + dpk.getY().bitLength() + "<br/>");
367 out.println(dpk.getParams());
368 } else if (pk instanceof ECPublicKey) {
369 ECPublicKey epk = (ECPublicKey) pk;
370 out.println("Length-x: " + epk.getW().getAffineX().bitLength() + "<br/>");
371 out.println("Length-y: " + epk.getW().getAffineY().bitLength() + "<br/>");
372 out.println(epk.getParams().getCurve());
376 private static String getSignatureAlgorithm(byte[] data) throws IOException {
377 DerInputStream in = new DerInputStream(data);
378 DerValue[] seq = in.getSequence(3);
379 return AlgorithmId.parse(seq[1]).getName();
383 public void output(PrintWriter out, Language l, Map<String, Object> vars) {
385 HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
386 vars2.put("csrf", getCSRFToken());
387 vars2.put("csrf_name", getCsrfFieldName());
388 vars2.put("spkacChallenge", spkacChallenge);
389 tIni.output(out, l, vars2);
392 super.output(out, l, vars);
397 protected void outputContent(PrintWriter out, Language l, Map<String, Object> vars) {
398 HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
399 vars2.put("CCA", "<a href='/policy/CAcertCommunityAgreement.html'>CCA</a>");
401 StringBuffer content = new StringBuffer();
402 for (SubjectAlternateName SAN : SANs) {
403 content.append(SAN.getType().toString().toLowerCase());
405 content.append(SAN.getName());
406 content.append('\n');
410 vars2.put("emails", content.toString());
411 vars2.put("hashs", new HashAlgorithms(selectedDigest));
412 vars2.put("profiles", new IterableDataset() {
417 public boolean next(Language l, Map<String, Object> vars) {
418 CertificateProfile cp = CertificateProfile.getById(i++);
422 if (cp.getId() == profile.getId()) {
423 vars.put("selected", " selected");
425 vars.put("selected", "");
427 vars.put("key", cp.getKeyName());
428 vars.put("name", cp.getVisibleName());
432 t.output(out, l, vars2);