1 //
2 // ========================================================================
3 // Copyright (c) 1995-2012 Mort Bay Consulting Pty. Ltd.
4 // ------------------------------------------------------------------------
5 // All rights reserved. This program and the accompanying materials
6 // are made available under the terms of the Eclipse Public License v1.0
7 // and Apache License v2.0 which accompanies this distribution.
8 //
9 // The Eclipse Public License is available at
10 // http://www.eclipse.org/legal/epl-v10.html
11 //
12 // The Apache License v2.0 is available at
13 // http://www.opensource.org/licenses/apache2.0.php
14 //
15 // You may elect to redistribute this code under either of these licenses.
16 // ========================================================================
17 //
18
19 package org.eclipse.jetty.security.authentication;
20
21 import java.io.InputStream;
22 import java.security.KeyStore;
23 import java.security.Principal;
24 import java.security.cert.CRL;
25 import java.security.cert.X509Certificate;
26 import java.util.Collection;
27
28 import javax.servlet.ServletRequest;
29 import javax.servlet.ServletResponse;
30 import javax.servlet.http.HttpServletRequest;
31 import javax.servlet.http.HttpServletResponse;
32
33 import org.eclipse.jetty.security.ServerAuthException;
34 import org.eclipse.jetty.security.UserAuthentication;
35 import org.eclipse.jetty.server.Authentication;
36 import org.eclipse.jetty.server.Authentication.User;
37 import org.eclipse.jetty.server.UserIdentity;
38 import org.eclipse.jetty.util.B64Code;
39 import org.eclipse.jetty.util.security.CertificateUtils;
40 import org.eclipse.jetty.util.security.CertificateValidator;
41 import org.eclipse.jetty.util.security.Constraint;
42 import org.eclipse.jetty.util.security.Password;
43
44 /**
45 * @version $Rev: 4793 $ $Date: 2009-03-19 00:00:01 +0100 (Thu, 19 Mar 2009) $
46 */
47 public class ClientCertAuthenticator extends LoginAuthenticator
48 {
49 /** String name of keystore password property. */
50 private static final String PASSWORD_PROPERTY = "org.eclipse.jetty.ssl.password";
51
52 /** Truststore path */
53 private String _trustStorePath;
54 /** Truststore provider name */
55 private String _trustStoreProvider;
56 /** Truststore type */
57 private String _trustStoreType = "JKS";
58 /** Truststore password */
59 private transient Password _trustStorePassword;
60
61 /** Set to true if SSL certificate validation is required */
62 private boolean _validateCerts;
63 /** Path to file that contains Certificate Revocation List */
64 private String _crlPath;
65 /** Maximum certification path length (n - number of intermediate certs, -1 for unlimited) */
66 private int _maxCertPathLength = -1;
67 /** CRL Distribution Points (CRLDP) support */
68 private boolean _enableCRLDP = false;
69 /** On-Line Certificate Status Protocol (OCSP) support */
70 private boolean _enableOCSP = false;
71 /** Location of OCSP Responder */
72 private String _ocspResponderURL;
73
74 public ClientCertAuthenticator()
75 {
76 super();
77 }
78
79 public String getAuthMethod()
80 {
81 return Constraint.__CERT_AUTH;
82 }
83
84 /**
85 * @return Authentication for request
86 * @throws ServerAuthException
87 */
88 public Authentication validateRequest(ServletRequest req, ServletResponse res, boolean mandatory) throws ServerAuthException
89 {
90 if (!mandatory)
91 return new DeferredAuthentication(this);
92
93 HttpServletRequest request = (HttpServletRequest)req;
94 HttpServletResponse response = (HttpServletResponse)res;
95 X509Certificate[] certs = (X509Certificate[]) request.getAttribute("javax.servlet.request.X509Certificate");
96
97 try
98 {
99 // Need certificates.
100 if (certs != null && certs.length > 0)
101 {
102
103 if (_validateCerts)
104 {
105 KeyStore trustStore = getKeyStore(null,
106 _trustStorePath, _trustStoreType, _trustStoreProvider,
107 _trustStorePassword == null ? null :_trustStorePassword.toString());
108 Collection<? extends CRL> crls = loadCRL(_crlPath);
109 CertificateValidator validator = new CertificateValidator(trustStore, crls);
110 validator.validate(certs);
111 }
112
113 for (X509Certificate cert: certs)
114 {
115 if (cert==null)
116 continue;
117
118 Principal principal = cert.getSubjectDN();
119 if (principal == null) principal = cert.getIssuerDN();
120 final String username = principal == null ? "clientcert" : principal.getName();
121
122 final char[] credential = B64Code.encode(cert.getSignature());
123
124 UserIdentity user = _loginService.login(username,credential);
125 if (user!=null)
126 {
127 renewSession(request,response);
128 return new UserAuthentication(getAuthMethod(),user);
129 }
130 }
131 }
132
133 if (!DeferredAuthentication.isDeferred(response))
134 {
135 response.sendError(HttpServletResponse.SC_FORBIDDEN);
136 return Authentication.SEND_FAILURE;
137 }
138
139 return Authentication.UNAUTHENTICATED;
140 }
141 catch (Exception e)
142 {
143 throw new ServerAuthException(e.getMessage());
144 }
145 }
146
147 /* ------------------------------------------------------------ */
148 /**
149 * Loads keystore using an input stream or a file path in the same
150 * order of precedence.
151 *
152 * Required for integrations to be able to override the mechanism
153 * used to load a keystore in order to provide their own implementation.
154 *
155 * @param storeStream keystore input stream
156 * @param storePath path of keystore file
157 * @param storeType keystore type
158 * @param storeProvider keystore provider
159 * @param storePassword keystore password
160 * @return created keystore
161 * @throws Exception
162 */
163 protected KeyStore getKeyStore(InputStream storeStream, String storePath, String storeType, String storeProvider, String storePassword) throws Exception
164 {
165 return CertificateUtils.getKeyStore(storeStream, storePath, storeType, storeProvider, storePassword);
166 }
167
168 /* ------------------------------------------------------------ */
169 /**
170 * Loads certificate revocation list (CRL) from a file.
171 *
172 * Required for integrations to be able to override the mechanism used to
173 * load CRL in order to provide their own implementation.
174 *
175 * @param crlPath path of certificate revocation list file
176 * @return a (possibly empty) collection view of java.security.cert.CRL objects initialized with the data from the
177 * input stream.
178 * @throws Exception
179 */
180 protected Collection<? extends CRL> loadCRL(String crlPath) throws Exception
181 {
182 return CertificateUtils.loadCRL(crlPath);
183 }
184
185 public boolean secureResponse(ServletRequest req, ServletResponse res, boolean mandatory, User validatedUser) throws ServerAuthException
186 {
187 return true;
188 }
189
190 /* ------------------------------------------------------------ */
191 /**
192 * @return true if SSL certificate has to be validated
193 */
194 public boolean isValidateCerts()
195 {
196 return _validateCerts;
197 }
198
199 /* ------------------------------------------------------------ */
200 /**
201 * @param validateCerts
202 * true if SSL certificates have to be validated
203 */
204 public void setValidateCerts(boolean validateCerts)
205 {
206 _validateCerts = validateCerts;
207 }
208
209 /* ------------------------------------------------------------ */
210 /**
211 * @return The file name or URL of the trust store location
212 */
213 public String getTrustStore()
214 {
215 return _trustStorePath;
216 }
217
218 /* ------------------------------------------------------------ */
219 /**
220 * @param trustStorePath
221 * The file name or URL of the trust store location
222 */
223 public void setTrustStore(String trustStorePath)
224 {
225 _trustStorePath = trustStorePath;
226 }
227
228 /* ------------------------------------------------------------ */
229 /**
230 * @return The provider of the trust store
231 */
232 public String getTrustStoreProvider()
233 {
234 return _trustStoreProvider;
235 }
236
237 /* ------------------------------------------------------------ */
238 /**
239 * @param trustStoreProvider
240 * The provider of the trust store
241 */
242 public void setTrustStoreProvider(String trustStoreProvider)
243 {
244 _trustStoreProvider = trustStoreProvider;
245 }
246
247 /* ------------------------------------------------------------ */
248 /**
249 * @return The type of the trust store (default "JKS")
250 */
251 public String getTrustStoreType()
252 {
253 return _trustStoreType;
254 }
255
256 /* ------------------------------------------------------------ */
257 /**
258 * @param trustStoreType
259 * The type of the trust store (default "JKS")
260 */
261 public void setTrustStoreType(String trustStoreType)
262 {
263 _trustStoreType = trustStoreType;
264 }
265
266 /* ------------------------------------------------------------ */
267 /**
268 * @param password
269 * The password for the trust store
270 */
271 public void setTrustStorePassword(String password)
272 {
273 _trustStorePassword = Password.getPassword(PASSWORD_PROPERTY,password,null);
274 }
275
276 /* ------------------------------------------------------------ */
277 /** Get the crlPath.
278 * @return the crlPath
279 */
280 public String getCrlPath()
281 {
282 return _crlPath;
283 }
284
285 /* ------------------------------------------------------------ */
286 /** Set the crlPath.
287 * @param crlPath the crlPath to set
288 */
289 public void setCrlPath(String crlPath)
290 {
291 _crlPath = crlPath;
292 }
293
294 /**
295 * @return Maximum number of intermediate certificates in
296 * the certification path (-1 for unlimited)
297 */
298 public int getMaxCertPathLength()
299 {
300 return _maxCertPathLength;
301 }
302
303 /* ------------------------------------------------------------ */
304 /**
305 * @param maxCertPathLength
306 * maximum number of intermediate certificates in
307 * the certification path (-1 for unlimited)
308 */
309 public void setMaxCertPathLength(int maxCertPathLength)
310 {
311 _maxCertPathLength = maxCertPathLength;
312 }
313
314 /* ------------------------------------------------------------ */
315 /**
316 * @return true if CRL Distribution Points support is enabled
317 */
318 public boolean isEnableCRLDP()
319 {
320 return _enableCRLDP;
321 }
322
323 /* ------------------------------------------------------------ */
324 /** Enables CRL Distribution Points Support
325 * @param enableCRLDP true - turn on, false - turns off
326 */
327 public void setEnableCRLDP(boolean enableCRLDP)
328 {
329 _enableCRLDP = enableCRLDP;
330 }
331
332 /* ------------------------------------------------------------ */
333 /**
334 * @return true if On-Line Certificate Status Protocol support is enabled
335 */
336 public boolean isEnableOCSP()
337 {
338 return _enableOCSP;
339 }
340
341 /* ------------------------------------------------------------ */
342 /** Enables On-Line Certificate Status Protocol support
343 * @param enableOCSP true - turn on, false - turn off
344 */
345 public void setEnableOCSP(boolean enableOCSP)
346 {
347 _enableOCSP = enableOCSP;
348 }
349
350 /* ------------------------------------------------------------ */
351 /**
352 * @return Location of the OCSP Responder
353 */
354 public String getOcspResponderURL()
355 {
356 return _ocspResponderURL;
357 }
358
359 /* ------------------------------------------------------------ */
360 /** Set the location of the OCSP Responder.
361 * @param ocspResponderURL location of the OCSP Responder
362 */
363 public void setOcspResponderURL(String ocspResponderURL)
364 {
365 _ocspResponderURL = ocspResponderURL;
366 }
367 }