1 package org.cacert.gigi.pages.account.certs;
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.util.Base64;
11 import java.util.HashMap;
12 import java.util.LinkedHashSet;
15 import java.util.TreeSet;
17 import javax.servlet.http.HttpServletRequest;
19 import org.cacert.gigi.GigiApiException;
20 import org.cacert.gigi.crypto.SPKAC;
21 import org.cacert.gigi.dbObjects.Certificate;
22 import org.cacert.gigi.dbObjects.Certificate.CSRType;
23 import org.cacert.gigi.dbObjects.Certificate.SANType;
24 import org.cacert.gigi.dbObjects.Certificate.SubjectAlternateName;
25 import org.cacert.gigi.dbObjects.CertificateProfile;
26 import org.cacert.gigi.dbObjects.Digest;
27 import org.cacert.gigi.dbObjects.User;
28 import org.cacert.gigi.localisation.Language;
29 import org.cacert.gigi.output.CertificateValiditySelector;
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 private String spkacChallenge;
105 public String CN = DEFAULT_CN;
107 private Set<SubjectAlternateName> SANs = new LinkedHashSet<>();
109 private Digest selectedDigest = Digest.getDefault();
111 CertificateValiditySelector issueDate = new CertificateValiditySelector();
113 private boolean login;
115 private CertificateProfile profile = CertificateProfile.getById(1);
117 public CertificateIssueForm(HttpServletRequest hsr) {
119 u = Page.getUser(hsr);
120 spkacChallenge = RandomToken.generateToken(16);
123 private Certificate result;
125 public Certificate getResult() {
130 public boolean submit(PrintWriter out, HttpServletRequest req) {
131 String csr = req.getParameter("CSR");
132 String spkac = req.getParameter("SPKAC");
136 byte[] data = PEM.decode("(NEW )?CERTIFICATE REQUEST", csr);
137 PKCS10 parsed = new PKCS10(data);
138 PKCS10Attributes atts = parsed.getAttributes();
140 for (PKCS10Attribute b : atts.getAttributes()) {
142 if ( !b.getAttributeId().equals((Object) PKCS9Attribute.EXTENSION_REQUEST_OID)) {
147 for (RDN r : parsed.getSubjectName().rdns()) {
148 for (AVA a : r.avas()) {
149 if (a.getObjectIdentifier().equals((Object) PKCS9Attribute.EMAIL_ADDRESS_OID)) {
150 SANs.add(new SubjectAlternateName(SANType.EMAIL, a.getValueString()));
151 } else if (a.getObjectIdentifier().equals((Object) X500Name.commonName_oid)) {
152 String value = a.getValueString();
153 if (value.contains(".") && !value.contains(" ")) {
154 SANs.add(new SubjectAlternateName(SANType.DNS, value));
158 } else if (a.getObjectIdentifier().equals((Object) PKIXExtensions.SubjectAlternativeName_Id)) {
159 // parse invalid SANs
164 for (Extension c : ((CertificateExtensions) b.getAttributeValue()).getAllExtensions()) {
165 if (c instanceof SubjectAlternativeNameExtension) {
167 SubjectAlternativeNameExtension san = (SubjectAlternativeNameExtension) c;
168 GeneralNames obj = san.get(SubjectAlternativeNameExtension.SUBJECT_NAME);
169 for (int i = 0; i < obj.size(); i++) {
170 GeneralName generalName = obj.get(i);
171 GeneralNameInterface peeled = generalName.getName();
172 if (peeled instanceof DNSName) {
173 SANs.add(new SubjectAlternateName(SANType.DNS, ((DNSName) peeled).getName()));
174 } else if (peeled instanceof RFC822Name) {
175 SANs.add(new SubjectAlternateName(SANType.EMAIL, ((RFC822Name) peeled).getName()));
178 } else if (c instanceof ExtendedKeyUsageExtension) {
179 ExtendedKeyUsageExtension ekue = (ExtendedKeyUsageExtension) c;
180 for (String s : ekue.getExtendedKeyUsage()) {
181 if (s.equals(OID_KEY_USAGE_SSL_SERVER.toString())) {
183 profile = CertificateProfile.getByName("server");
184 } else if (s.equals(OID_KEY_USAGE_SSL_CLIENT.toString())) {
186 profile = CertificateProfile.getByName("client");
187 } else if (s.equals(OID_KEY_USAGE_CODESIGN.toString())) {
189 } else if (s.equals(OID_KEY_USAGE_EMAIL_PROTECTION.toString())) {
191 profile = CertificateProfile.getByName("mail");
192 } else if (s.equals(OID_KEY_USAGE_TIMESTAMP.toString())) {
194 } else if (s.equals(OID_KEY_USAGE_OCSP.toString())) {
199 // Unknown requested extension
204 out.println(parsed.getSubjectName().getCommonName());
205 out.println(parsed.getSubjectName().getCountry());
207 out.println("CSR DN: " + parsed.getSubjectName() + "<br/>");
208 PublicKey pk = parsed.getSubjectPublicKeyInfo();
209 checkKeyStrength(pk, out);
210 String sign = getSignatureAlgorithm(data);
213 out.println("<br/>digest: " + sign + "<br/>");
216 this.csrType = CSRType.CSR;
217 } else if (spkac != null) {
218 String cleanedSPKAC = spkac.replaceAll("[\r\n]", "");
219 byte[] data = Base64.getDecoder().decode(cleanedSPKAC);
220 SPKAC parsed = new SPKAC(data);
221 if ( !parsed.getChallenge().equals(spkacChallenge)) {
222 throw new GigiApiException("Challenge mismatch");
224 checkKeyStrength(parsed.getPubkey(), out);
225 String sign = getSignatureAlgorithm(data);
227 out.println("<br/>digest: " + sign + "<br/>");
230 this.csr = "SPKAC=" + cleanedSPKAC;
231 this.csrType = CSRType.SPKAC;
234 login = "1".equals(req.getParameter("login"));
235 issueDate.update(req);
236 CN = req.getParameter("CN");
237 String hashAlg = req.getParameter("hash_alg");
238 if (hashAlg != null) {
239 selectedDigest = Digest.valueOf(hashAlg);
241 profile = CertificateProfile.getByName(req.getParameter("profile"));
245 Set<SubjectAlternateName> filteredSANs = new LinkedHashSet<>();
246 boolean server = profile.getKeyName().equals("server");
247 for (SubjectAlternateName san : parseSANBox(req.getParameter("SANs"))) {
248 if (san.getType() == SANType.DNS) {
249 if (u.isValidDomain(san.getName()) && server) {
251 pDNS = san.getName();
253 filteredSANs.add(san);
256 } else if (san.getType() == SANType.EMAIL) {
257 if (u.isValidEmail(san.getName()) && !server) {
259 pMail = san.getName();
261 filteredSANs.add(san);
265 outputError(out, req, "The requested Subject alternate name \"%s\" has been removed.",//
266 san.getType().toString().toLowerCase() + ":" + san.getName());
269 if ( !u.isValidName(CN) && !server && !CN.equals(DEFAULT_CN)) {
271 outputError(out, req, "The real name entered cannot be verified with your account.");
274 final StringBuffer subject = new StringBuffer();
275 if (server && pDNS != null) {
276 subject.append("/commonName=");
277 subject.append(pDNS);
279 outputError(out, req, "No email is included in this certificate.");
283 outputError(out, req, "No real name is included in this certificate.");
286 subject.append("/commonName=");
289 subject.append("/emailAddress=");
290 subject.append(pMail);
293 if (req.getParameter("CCA") == null) {
294 outputError(out, req, "You need to accept the CCA.");
300 result = new Certificate(LoginPage.getUser(req).getId(), subject.toString(), selectedDigest.toString(), //
301 this.csr, this.csrType, profile, SANs.toArray(new SubjectAlternateName[SANs.size()]));
302 result.issue(issueDate.getFrom(), issueDate.getTo()).waitFor(60000);
305 } catch (IOException e) {
307 } catch (IllegalArgumentException e) {
309 throw new GigiApiException("Certificate Request format is invalid.");
310 } catch (GeneralSecurityException e) {
312 throw new GigiApiException("Certificate Request format is invalid.");
313 } catch (InterruptedException e) {
316 } catch (GigiApiException e) {
317 e.format(out, Page.getLanguage(req));
322 private void guessDigest(String sign) {
323 if (sign.toLowerCase().startsWith("sha512")) {
324 selectedDigest = Digest.SHA512;
325 } else if (sign.toLowerCase().startsWith("sha384")) {
326 selectedDigest = Digest.SHA384;
330 private TreeSet<SubjectAlternateName> parseSANBox(String SANs) {
331 String[] SANparts = SANs.split("[\r\n]+|, *");
332 TreeSet<SubjectAlternateName> parsedNames = new TreeSet<>();
333 for (String SANline : SANparts) {
334 String[] parts = SANline.split(":", 2);
335 if (parts.length == 1) {
336 if (parts[0].trim().equals("")) {
339 if (parts[0].contains("@")) {
340 parsedNames.add(new SubjectAlternateName(SANType.EMAIL, parts[0]));
342 parsedNames.add(new SubjectAlternateName(SANType.DNS, parts[0]));
347 SANType t = Certificate.SANType.valueOf(parts[0].toUpperCase());
351 parsedNames.add(new SubjectAlternateName(t, parts[1]));
352 } catch (IllegalArgumentException e) {
360 private void checkKeyStrength(PublicKey pk, PrintWriter out) {
361 out.println("Type: " + pk.getAlgorithm() + "<br/>");
362 if (pk instanceof RSAPublicKey) {
363 out.println("Exponent: " + ((RSAPublicKey) pk).getPublicExponent() + "<br/>");
364 out.println("Length: " + ((RSAPublicKey) pk).getModulus().bitLength());
365 } else if (pk instanceof DSAPublicKey) {
366 DSAPublicKey dpk = (DSAPublicKey) pk;
367 out.println("Length: " + dpk.getY().bitLength() + "<br/>");
368 out.println(dpk.getParams());
369 } else if (pk instanceof ECPublicKey) {
370 ECPublicKey epk = (ECPublicKey) pk;
371 out.println("Length-x: " + epk.getW().getAffineX().bitLength() + "<br/>");
372 out.println("Length-y: " + epk.getW().getAffineY().bitLength() + "<br/>");
373 out.println(epk.getParams().getCurve());
377 private static String getSignatureAlgorithm(byte[] data) throws IOException {
378 DerInputStream in = new DerInputStream(data);
379 DerValue[] seq = in.getSequence(3);
380 return AlgorithmId.parse(seq[1]).getName();
384 public void output(PrintWriter out, Language l, Map<String, Object> vars) {
386 HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
387 vars2.put("csrf", getCSRFToken());
388 vars2.put("csrf_name", getCsrfFieldName());
389 vars2.put("spkacChallenge", spkacChallenge);
390 tIni.output(out, l, vars2);
393 super.output(out, l, vars);
398 protected void outputContent(PrintWriter out, Language l, Map<String, Object> vars) {
399 HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
400 vars2.put("CCA", "<a href='/policy/CAcertCommunityAgreement.html'>CCA</a>");
402 StringBuffer content = new StringBuffer();
403 for (SubjectAlternateName SAN : SANs) {
404 content.append(SAN.getType().toString().toLowerCase());
406 content.append(SAN.getName());
407 content.append('\n');
411 vars2.put("validity", issueDate);
412 vars2.put("emails", content.toString());
413 vars2.put("hashs", new HashAlgorithms(selectedDigest));
414 vars2.put("profiles", new IterableDataset() {
419 public boolean next(Language l, Map<String, Object> vars) {
420 CertificateProfile cp = CertificateProfile.getById(i++);
424 if (cp.getId() == profile.getId()) {
425 vars.put("selected", " selected");
427 vars.put("selected", "");
429 vars.put("key", cp.getKeyName());
430 vars.put("name", cp.getVisibleName());
434 t.output(out, l, vars2);