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
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
package org.spongycastle.voms;
import java.util.List;
import java.util.ArrayList;
import org.spongycastle.asn1.ASN1OctetString;
import org.spongycastle.asn1.DERIA5String;
import org.spongycastle.asn1.x509.IetfAttrSyntax;
import org.spongycastle.x509.X509Attribute;
import org.spongycastle.x509.X509AttributeCertificate;
/**
* Representation of the authorization information (VO, server address
* and list of Fully Qualified Attribute Names, or FQANs) contained in
* a VOMS attribute certificate.
*/
public class VOMSAttribute
{
/**
* The ASN.1 object identifier for VOMS attributes
*/
public static final String VOMS_ATTR_OID = "1.3.6.1.4.1.8005.100.100.4";
private X509AttributeCertificate myAC;
private String myHostPort;
private String myVo;
private List myStringList = new ArrayList();
private List myFQANs = new ArrayList();
/**
* Parses the contents of an attribute certificate.<br>
* <b>NOTE:</b> Cryptographic signatures, time stamps etc. will <b>not</b> be checked.
*
* @param ac the attribute certificate to parse for VOMS attributes
*/
public VOMSAttribute(X509AttributeCertificate ac)
{
if (ac == null)
{
throw new IllegalArgumentException("VOMSAttribute: AttributeCertificate is NULL");
}
myAC = ac;
X509Attribute[] l = ac.getAttributes(VOMS_ATTR_OID);
if (l == null)
{
return;
}
try
{
for (int i = 0; i != l.length; i++)
{
IetfAttrSyntax attr = IetfAttrSyntax.getInstance(l[i].getValues()[0]);
// policyAuthority is on the format <vo>/<host>:<port>
String url = ((DERIA5String)attr.getPolicyAuthority().getNames()[0].getName()).getString();
int idx = url.indexOf("://");
if ((idx < 0) || (idx == (url.length() - 1)))
{
throw new IllegalArgumentException("Bad encoding of VOMS policyAuthority : [" + url + "]");
}
myVo = url.substring(0, idx);
myHostPort = url.substring(idx + 3);
if (attr.getValueType() != IetfAttrSyntax.VALUE_OCTETS)
{
throw new IllegalArgumentException(
"VOMS attribute values are not encoded as octet strings, policyAuthority = " + url);
}
ASN1OctetString[] values = (ASN1OctetString[])attr.getValues();
for (int j = 0; j != values.length; j++)
{
String fqan = new String(values[j].getOctets());
FQAN f = new FQAN(fqan);
if (!myStringList.contains(fqan) && fqan.startsWith("/" + myVo + "/"))
{
myStringList.add(fqan);
myFQANs.add(f);
}
}
}
}
catch (IllegalArgumentException ie)
{
throw ie;
}
catch (Exception e)
{
throw new IllegalArgumentException("Badly encoded VOMS extension in AC issued by " +
ac.getIssuer());
}
}
/**
* @return The AttributeCertificate containing the VOMS information
*/
public X509AttributeCertificate getAC()
{
return myAC;
}
/**
* @return List of String of the VOMS fully qualified
* attributes names (FQANs):<br>
* <code>/vo[/group[/group2...]][/Role=[role]][/Capability=capability]</code>
*/
public List getFullyQualifiedAttributes()
{
return myStringList;
}
/**
* @return List of FQAN of the VOMS fully qualified
* attributes names (FQANs)
*/
public List getListOfFQAN()
{
return myFQANs;
}
/**
* Returns the address of the issuing VOMS server, on the form <code><host>:<port></code>
* @return String
*/
public String getHostPort()
{
return myHostPort;
}
/**
* Returns the VO name
* @return
*/
public String getVO()
{
return myVo;
}
public String toString()
{
return "VO :" + myVo + "\n" + "HostPort:" + myHostPort + "\n" + "FQANs :" + myFQANs;
}
/**
* Inner class providing a container of the group,role,capability
* information triplet in an FQAN.
*/
public class FQAN
{
String fqan;
String group;
String role;
String capability;
public FQAN(String fqan)
{
this.fqan = fqan;
}
public FQAN(String group, String role, String capability)
{
this.group = group;
this.role = role;
this.capability = capability;
}
public String getFQAN()
{
if (fqan != null)
{
return fqan;
}
fqan = group + "/Role=" + ((role != null) ? role : "") +
((capability != null) ? ("/Capability=" + capability) : "");
return fqan;
}
protected void split()
{
int len = fqan.length();
int i = fqan.indexOf("/Role=");
if (i < 0)
{
return;
}
group = fqan.substring(0, i);
int j = fqan.indexOf("/Capability=", i + 6);
String s = (j < 0) ? fqan.substring(i + 6) : fqan.substring(i + 6, j);
role = (s.length() == 0) ? null : s;
s = (j < 0) ? null : fqan.substring(j + 12);
capability = ((s == null) || (s.length() == 0)) ? null : s;
}
public String getGroup()
{
if ((group == null) && (fqan != null))
{
split();
}
return group;
}
public String getRole()
{
if ((group == null) && (fqan != null))
{
split();
}
return role;
}
public String getCapability()
{
if ((group == null) && (fqan != null))
{
split();
}
return capability;
}
public String toString()
{
return getFQAN();
}
}
}
|
