1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.cms.servlet.ocsp;
import java.io.IOException;
import java.security.cert.X509CRLEntry;
import java.security.cert.X509Certificate;
import java.util.Locale;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import netscape.security.x509.X509CRLImpl;
import com.netscape.certsrv.apps.CMS;
import com.netscape.certsrv.authentication.IAuthToken;
import com.netscape.certsrv.authorization.AuthzToken;
import com.netscape.certsrv.base.EBaseException;
import com.netscape.certsrv.base.IArgBlock;
import com.netscape.certsrv.dbs.crldb.ICRLIssuingPointRecord;
import com.netscape.certsrv.logging.AuditFormat;
import com.netscape.certsrv.logging.ILogger;
import com.netscape.certsrv.ocsp.IDefStore;
import com.netscape.certsrv.ocsp.IOCSPAuthority;
import com.netscape.cms.servlet.base.CMSServlet;
import com.netscape.cms.servlet.common.CMSRequest;
import com.netscape.cms.servlet.common.CMSTemplate;
import com.netscape.cms.servlet.common.CMSTemplateParams;
import com.netscape.cms.servlet.common.ECMSGWException;
import com.netscape.cmsutil.util.Cert;
/**
* Check the status of a specific certificate
*
* @version $Revision$ $Date$
*/
public class CheckCertServlet extends CMSServlet {
/**
*
*/
private static final long serialVersionUID = 7782198059640825050L;
public static final String BEGIN_HEADER =
"-----BEGIN CERTIFICATE-----";
public static final String END_HEADER =
"-----END CERTIFICATE-----";
public static final String ATTR_STATUS = "status";
public static final String ATTR_ISSUERDN = "issuerDN";
public static final String ATTR_SUBJECTDN = "subjectDN";
public static final String ATTR_SERIALNO = "serialno";
public static final String STATUS_GOOD = "good";
public static final String STATUS_REVOKED = "revoked";
public static final String STATUS_UNKNOWN = "unknown";
private final static String TPL_FILE = "checkCert.template";
private String mFormPath = null;
private IOCSPAuthority mOCSPAuthority = null;
public CheckCertServlet() {
super();
}
/**
* initialize the servlet. This servlet uses the template file
* "checkCert.template" to process the response.
*
* @param sc servlet configuration, read from the web.xml file
*/
public void init(ServletConfig sc) throws ServletException {
super.init(sc);
// override success to display own output.
mFormPath = "/" + mAuthority.getId() + "/" + TPL_FILE;
mTemplates.remove(CMSRequest.SUCCESS);
mOCSPAuthority = (IOCSPAuthority) mAuthority;
if (mOutputTemplatePath != null)
mFormPath = mOutputTemplatePath;
}
/**
* Process the HTTP request.
* <ul>
* <li>http.param cert certificate to check. Base64, DER encoded, wrapped in -----BEGIN CERTIFICATE-----, -----END
* CERTIFICATE----- strings
* </ul>
*
* @param cmsReq the object holding the request and response information
*/
protected void process(CMSRequest cmsReq)
throws EBaseException {
HttpServletRequest req = cmsReq.getHttpReq();
HttpServletResponse resp = cmsReq.getHttpResp();
IAuthToken authToken = authenticate(cmsReq);
AuthzToken authzToken = null;
try {
authzToken = authorize(mAclMethod, authToken,
mAuthzResourceName, "validate");
} catch (Exception e) {
// do nothing for now
}
if (authzToken == null) {
cmsReq.setStatus(CMSRequest.UNAUTHORIZED);
return;
}
CMSTemplate form = null;
Locale[] locale = new Locale[1];
try {
form = getTemplate(mFormPath, req, locale);
} catch (IOException e) {
log(ILogger.LL_FAILURE,
CMS.getLogMessage("CMSGW_ERR_GET_TEMPLATE", mFormPath, e.toString()));
throw new ECMSGWException(
CMS.getUserMessage("CMS_GW_DISPLAY_TEMPLATE_ERROR"));
}
IArgBlock header = CMS.createArgBlock();
IArgBlock fixed = CMS.createArgBlock();
CMSTemplateParams argSet = new CMSTemplateParams(header, fixed);
IDefStore defStore = mOCSPAuthority.getDefaultStore();
String b64 = cmsReq.getHttpReq().getParameter("cert");
if (b64.indexOf(BEGIN_HEADER) == -1) {
// error
throw new ECMSGWException(CMS.getUserMessage(getLocale(req), "CMS_GW_MISSING_CERT_HEADER"));
}
if (b64.indexOf(END_HEADER) == -1) {
// error
throw new ECMSGWException(CMS.getUserMessage(getLocale(req), "CMS_GW_MISSING_CERT_FOOTER"));
}
X509Certificate cert = null;
try {
cert = Cert.mapCert(b64);
} catch (Exception e) {
throw new ECMSGWException(CMS.getUserMessage("CMS_GW_DECODING_CERT_ERROR"));
}
if (cert == null) {
throw new ECMSGWException(CMS.getUserMessage("CMS_GW_DECODING_CERT_ERROR"));
}
ICRLIssuingPointRecord pt = defStore.readCRLIssuingPoint(
cert.getIssuerDN().getName());
header.addStringValue(ATTR_ISSUERDN, cert.getIssuerDN().getName());
header.addStringValue(ATTR_SUBJECTDN, cert.getSubjectDN().getName());
header.addStringValue(ATTR_SERIALNO, "0x" + cert.getSerialNumber().toString(16));
try {
X509CRLImpl crl = null;
crl = new X509CRLImpl(pt.getCRL());
X509CRLEntry crlentry = crl.getRevokedCertificate(cert.getSerialNumber());
if (crlentry == null) {
if (defStore.isNotFoundGood()) {
header.addStringValue(ATTR_STATUS, STATUS_GOOD);
} else {
header.addStringValue(ATTR_STATUS, STATUS_UNKNOWN);
}
} else {
header.addStringValue(ATTR_STATUS, STATUS_REVOKED);
}
} catch (Exception e) {
header.addStringValue(ATTR_STATUS, STATUS_UNKNOWN);
}
log(ILogger.EV_AUDIT, AuditFormat.LEVEL, "Checked Certificate Status "
+ cert.getIssuerDN().getName() + " " + cert.getSerialNumber().toString());
try {
ServletOutputStream out = resp.getOutputStream();
String error = null;
String xmlOutput = req.getParameter("xml");
if (xmlOutput != null && xmlOutput.equals("true")) {
outputXML(resp, argSet);
} else {
resp.setContentType("text/html");
form.renderOutput(out, argSet);
cmsReq.setStatus(CMSRequest.SUCCESS);
}
} catch (IOException e) {
log(ILogger.LL_FAILURE,
CMS.getLogMessage("CMSGW_ERR_STREAM_TEMPLATE", e.toString()));
throw new ECMSGWException(
CMS.getUserMessage("CMS_GW_DISPLAY_TEMPLATE_ERROR"));
}
}
}
|
