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.x509.AVA;
46 import sun.security.x509.AlgorithmId;
47 import sun.security.x509.CertificateExtensions;
48 import sun.security.x509.DNSName;
49 import sun.security.x509.ExtendedKeyUsageExtension;
50 import sun.security.x509.Extension;
51 import sun.security.x509.GeneralName;
52 import sun.security.x509.GeneralNameInterface;
53 import sun.security.x509.GeneralNames;
54 import sun.security.x509.RDN;
55 import sun.security.x509.RFC822Name;
56 import sun.security.x509.SubjectAlternativeNameExtension;
57 import sun.security.x509.X500Name;
60 * This class represents a form that is used for issuing certificates. This
61 * class uses "sun.security" and therefore needs "-XDignore.symbol.file"
63 public class CertificateIssueForm extends Form {
65 private static final String DEFAULT_CN = "CAcert WoT User";
67 private final static Template t = new Template(CertificateIssueForm.class.getResource("CertificateIssueForm.templ"));
69 private final static Template tIni = new Template(CertificateAdd.class.getResource("RequestCertificate.templ"));
73 private CSRType csrType;
77 String spkacChallenge;
79 public String CN = DEFAULT_CN;
81 Set<SubjectAlternateName> SANs = new LinkedHashSet<>();
83 Digest selectedDigest = Digest.getDefault();
87 public CertificateIssueForm(HttpServletRequest hsr) {
89 u = Page.getUser(hsr);
90 spkacChallenge = RandomToken.generateToken(16);
95 public Certificate getResult() {
100 public boolean submit(PrintWriter out, HttpServletRequest req) {
101 String csr = req.getParameter("CSR");
102 String spkac = req.getParameter("SPKAC");
106 byte[] data = PEM.decode("(NEW )?CERTIFICATE REQUEST", csr);
107 PKCS10 parsed = new PKCS10(data);
108 PKCS10Attributes atts = parsed.getAttributes();
110 for (PKCS10Attribute b : atts.getAttributes()) {
112 if ( !b.getAttributeId().equals((Object) PKCS9Attribute.EXTENSION_REQUEST_OID)) {
117 for (RDN r : parsed.getSubjectName().rdns()) {
118 for (AVA a : r.avas()) {
119 if (a.getObjectIdentifier().equals((Object) PKCS9Attribute.EMAIL_ADDRESS_OID)) {
120 SANs.add(new SubjectAlternateName(SANType.EMAIL, a.getValueString()));
121 } else if (a.getObjectIdentifier().equals((Object) X500Name.commonName_oid)) {
122 CN = a.getValueString();
127 for (Extension c : ((CertificateExtensions) b.getAttributeValue()).getAllExtensions()) {
128 if (c instanceof SubjectAlternativeNameExtension) {
130 SubjectAlternativeNameExtension san = (SubjectAlternativeNameExtension) c;
131 GeneralNames obj = san.get(SubjectAlternativeNameExtension.SUBJECT_NAME);
132 for (int i = 0; i < obj.size(); i++) {
133 GeneralName generalName = obj.get(i);
134 GeneralNameInterface peeled = generalName.getName();
135 if (peeled instanceof DNSName) {
136 SANs.add(new SubjectAlternateName(SANType.DNS, ((DNSName) peeled).getName()));
137 } else if (peeled instanceof RFC822Name) {
138 SANs.add(new SubjectAlternateName(SANType.EMAIL, ((RFC822Name) peeled).getName()));
141 } else if (c instanceof ExtendedKeyUsageExtension) {
142 ExtendedKeyUsageExtension ekue = (ExtendedKeyUsageExtension) c;
143 for (String s : ekue.getExtendedKeyUsage()) {
144 if (s.equals("1.3.6.1.5.5.7.3.1")) {
146 } else if (s.equals("1.3.6.1.5.5.7.3.2")) {
148 } else if (s.equals("1.3.6.1.5.5.7.3.3")) {
150 } else if (s.equals("1.3.6.1.5.5.7.3.4")) {
152 } else if (s.equals("1.3.6.1.5.5.7.3.8")) {
154 } else if (s.equals("1.3.6.1.5.5.7.3.9")) {
159 // Unknown requested extension
164 out.println(parsed.getSubjectName().getCommonName());
165 out.println(parsed.getSubjectName().getCountry());
167 out.println("CSR DN: " + parsed.getSubjectName() + "<br/>");
168 PublicKey pk = parsed.getSubjectPublicKeyInfo();
169 checkKeyStrength(pk, out);
170 String sign = getSignatureAlgorithm(data);
171 out.println("<br/>digest: " + sign + "<br/>");
174 this.csrType = CSRType.CSR;
175 } else if (spkac != null) {
176 String cleanedSPKAC = spkac.replaceAll("[\r\n]", "");
177 byte[] data = Base64.getDecoder().decode(cleanedSPKAC);
178 SPKAC parsed = new SPKAC(data);
179 if ( !parsed.getChallenge().equals(spkacChallenge)) {
180 throw new GigiApiException("Challenge mismatch");
182 checkKeyStrength(parsed.getPubkey(), out);
183 String sign = getSignatureAlgorithm(data);
184 out.println("<br/>digest: " + sign + "<br/>");
187 this.csr = "SPKAC=" + cleanedSPKAC;
188 this.csrType = CSRType.SPKAC;
191 login = "1".equals(req.getParameter("login"));
192 CN = req.getParameter("CN");
193 String hashAlg = req.getParameter("hash_alg");
194 if (hashAlg != null) {
195 selectedDigest = Digest.valueOf(hashAlg);
197 CertificateProfile profile = CertificateProfile.getByName(req.getParameter("profile"));
201 Set<SubjectAlternateName> filteredSANs = new LinkedHashSet<>();
202 boolean server = profile.getKeyName().equals("server");
203 boolean dirty = false;
205 for (SubjectAlternateName san : parseSANBox(req.getParameter("SANs"))) {
206 if (san.getType() == SANType.DNS) {
207 if (u.isValidDomain(san.getName()) && server) {
209 pDNS = san.getName();
211 filteredSANs.add(san);
214 } else if (san.getType() == SANType.EMAIL) {
215 if (u.isValidEmail(san.getName()) && !server) {
217 pMail = san.getName();
219 filteredSANs.add(san);
224 outputError(out, req, "The requested Subject alternate name \"%s\" has been removed.",//
225 san.getType().toString().toLowerCase() + ":" + san.getName());
228 if ( !u.isValidName(CN) && !server && !CN.equals(DEFAULT_CN)) {
230 outputError(out, req, "The real name entered cannot be verified with your account.");
233 final StringBuffer subject = new StringBuffer();
234 if (server && pDNS != null) {
235 subject.append("/commonName=");
236 subject.append(pDNS);
238 outputError(out, req, "No email is included in this certificate.");
242 outputError(out, req, "No real name is included in this certificate.");
245 subject.append("/commonName=");
248 subject.append("/emailAddress=");
249 subject.append(pMail);
252 if (req.getParameter("CCA") == null) {
253 outputError(out, req, "You need to accept the CCA.");
259 result = new Certificate(LoginPage.getUser(req).getId(), subject.toString(), selectedDigest.toString(), //
260 this.csr, this.csrType, profile, SANs.toArray(new SubjectAlternateName[SANs.size()]));
261 result.issue().waitFor(60000);
264 } catch (IOException e) {
266 } catch (IllegalArgumentException e) {
268 throw new GigiApiException("Certificate Request format is invalid.");
269 } catch (GeneralSecurityException e) {
271 throw new GigiApiException("Certificate Request format is invalid.");
272 } catch (InterruptedException e) {
274 } catch (SQLException e) {
275 throw new GigiApiException(e);
277 } catch (GigiApiException e) {
278 e.format(out, Page.getLanguage(req));
283 private TreeSet<SubjectAlternateName> parseSANBox(String SANs) {
284 String[] SANparts = SANs.split("[\r\n]+|, *");
285 TreeSet<SubjectAlternateName> parsedNames = new TreeSet<>();
286 for (String SANline : SANparts) {
287 String[] parts = SANline.split(":", 2);
288 if (parts.length == 1) {
289 if (parts[0].trim().equals("")) {
292 if (parts[0].contains("@")) {
293 parsedNames.add(new SubjectAlternateName(SANType.EMAIL, parts[0]));
295 parsedNames.add(new SubjectAlternateName(SANType.DNS, parts[0]));
300 SANType t = Certificate.SANType.valueOf(parts[0].toUpperCase());
304 parsedNames.add(new SubjectAlternateName(t, parts[1]));
305 } catch (IllegalArgumentException e) {
313 private void checkKeyStrength(PublicKey pk, PrintWriter out) {
314 out.println("Type: " + pk.getAlgorithm() + "<br/>");
315 if (pk instanceof RSAPublicKey) {
316 out.println("Exponent: " + ((RSAPublicKey) pk).getPublicExponent() + "<br/>");
317 out.println("Length: " + ((RSAPublicKey) pk).getModulus().bitLength());
318 } else if (pk instanceof DSAPublicKey) {
319 DSAPublicKey dpk = (DSAPublicKey) pk;
320 out.println("Length: " + dpk.getY().bitLength() + "<br/>");
321 out.println(dpk.getParams());
322 } else if (pk instanceof ECPublicKey) {
323 ECPublicKey epk = (ECPublicKey) pk;
324 out.println("Length-x: " + epk.getW().getAffineX().bitLength() + "<br/>");
325 out.println("Length-y: " + epk.getW().getAffineY().bitLength() + "<br/>");
326 out.println(epk.getParams().getCurve());
330 private static String getSignatureAlgorithm(byte[] data) throws IOException {
331 DerInputStream in = new DerInputStream(data);
332 DerValue[] seq = in.getSequence(3);
333 return AlgorithmId.parse(seq[1]).getName();
337 public void output(PrintWriter out, Language l, Map<String, Object> vars) {
339 HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
340 vars2.put("csrf", getCSRFToken());
341 vars2.put("csrf_name", getCsrfFieldName());
342 vars2.put("spkacChallenge", spkacChallenge);
343 tIni.output(out, l, vars2);
346 super.output(out, l, vars);
351 protected void outputContent(PrintWriter out, Language l, Map<String, Object> vars) {
352 HashMap<String, Object> vars2 = new HashMap<String, Object>(vars);
353 vars2.put("CCA", "<a href='/policy/CAcertCommunityAgreement.html'>CCA</a>");
355 StringBuffer content = new StringBuffer();
356 for (SubjectAlternateName SAN : SANs) {
357 content.append(SAN.getType().toString().toLowerCase());
359 content.append(SAN.getName());
360 content.append('\n');
364 vars2.put("emails", content.toString());
365 vars2.put("hashs", new HashAlgorithms(selectedDigest));
366 vars2.put("profiles", new IterableDataset() {
371 public boolean next(Language l, Map<String, Object> vars) {
372 CertificateProfile cp = CertificateProfile.getById(i++);
376 vars.put("key", cp.getKeyName());
377 vars.put("name", cp.getVisibleName());
381 t.output(out, l, vars2);