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
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
/**
*/
package org.eclipse.emf.cdo.security.impl;
import org.eclipse.emf.cdo.common.branch.CDOBranchPoint;
import org.eclipse.emf.cdo.common.revision.CDORevision;
import org.eclipse.emf.cdo.common.revision.CDORevisionProvider;
import org.eclipse.emf.cdo.common.revision.CDORevisionUtil;
import org.eclipse.emf.cdo.security.Inclusion;
import org.eclipse.emf.cdo.security.ResourceFilter;
import org.eclipse.emf.cdo.security.SecurityPackage;
import org.eclipse.emf.ecore.EClass;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
/**
* <!-- begin-user-doc -->
* An implementation of the model object '<em><b>Resource Filter</b></em>'.
* @since 4.3
* <!-- end-user-doc -->
* <p>
* The following features are implemented:
* <ul>
* <li>{@link org.eclipse.emf.cdo.security.impl.ResourceFilterImpl#getPath <em>Path</em>}</li>
* <li>{@link org.eclipse.emf.cdo.security.impl.ResourceFilterImpl#getInclusion <em>Inclusion</em>}</li>
* </ul>
* </p>
*
* @generated
*/
public class ResourceFilterImpl extends PermissionFilterImpl implements ResourceFilter
{
private static final Pattern OMNI_PATTERN = Pattern.compile(".*");
private Pattern pattern;
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected ResourceFilterImpl()
{
super();
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected EClass eStaticClass()
{
return SecurityPackage.Literals.RESOURCE_FILTER;
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public String getPath()
{
return (String)eGet(SecurityPackage.Literals.RESOURCE_FILTER__PATH, true);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setPath(String newPath)
{
eSet(SecurityPackage.Literals.RESOURCE_FILTER__PATH, newPath);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public Inclusion getInclusion()
{
return (Inclusion)eGet(SecurityPackage.Literals.RESOURCE_FILTER__INCLUSION, true);
}
/**
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public void setInclusion(Inclusion newInclusion)
{
eSet(SecurityPackage.Literals.RESOURCE_FILTER__INCLUSION, newInclusion);
}
public boolean isApplicable(CDORevision revision, CDORevisionProvider revisionProvider, CDOBranchPoint securityContext)
{
if (revisionProvider == null)
{
return false;
}
Inclusion inclusion = getInclusion();
switch (inclusion)
{
case EXACT:
return includesExact(revision, revisionProvider);
case EXACT_AND_UP:
return includesExactAndUp(revision, revisionProvider);
case EXACT_AND_DOWN:
return includesExactAndDown(revision, revisionProvider);
case REGEX:
return includesRegex(revision, revisionProvider);
default:
throw new IllegalStateException("Unhandled inclusion value: " + inclusion);
}
}
private boolean includesExact(CDORevision revision, CDORevisionProvider revisionProvider)
{
if (!revision.isResourceNode())
{
return false;
}
String revisionPath = CDORevisionUtil.getResourceNodePath(revision, revisionProvider);
String path = getPath();
return revisionPath.equals(path);
}
private boolean includesExactAndUp(CDORevision revision, CDORevisionProvider revisionProvider)
{
if (!revision.isResourceNode())
{
return false;
}
String revisionPath = CDORevisionUtil.getResourceNodePath(revision, revisionProvider);
String path = getPath();
int length = revisionPath.length();
if (length > path.length())
{
return false;
}
path = path.substring(0, length);
return revisionPath.equals(path);
}
private boolean includesExactAndDown(CDORevision revision, CDORevisionProvider revisionProvider)
{
String revisionPath = CDORevisionUtil.getResourceNodePath(revision, revisionProvider);
String path = getPath();
int length = revisionPath.length();
if (length < path.length())
{
return false;
}
revisionPath = revisionPath.substring(0, length);
return revisionPath.equals(path);
}
private boolean includesRegex(CDORevision revision, CDORevisionProvider revisionProvider)
{
if (pattern == null)
{
String path = getPath();
pattern = compilePattern(path);
if (pattern == null)
{
return false;
}
}
if (pattern == OMNI_PATTERN)
{
return true;
}
String revisionPath = CDORevisionUtil.getResourceNodePath(revision, revisionProvider);
Matcher matcher = pattern.matcher(revisionPath);
return matcher.matches();
}
private Pattern compilePattern(String value)
{
if (value == null)
{
return null;
}
if (value.equals(OMNI_PATTERN.pattern()))
{
return OMNI_PATTERN;
}
try
{
return Pattern.compile(value);
}
catch (PatternSyntaxException ex)
{
return null;
}
}
public String format()
{
String label = "?";
String path = getPath();
if (path != null)
{
if (path.startsWith("/"))
{
path = path.substring(1);
}
label = path;
}
String operator = formatOperator();
return "resource" + operator + label;
}
private String formatOperator()
{
Inclusion inclusion = getInclusion();
switch (inclusion)
{
case EXACT:
return "==";
case EXACT_AND_UP:
return "<=";
case EXACT_AND_DOWN:
return ">=";
case REGEX:
return "~>";
default:
throw new IllegalStateException("Unhandled inclusion value: " + inclusion);
}
}
} // ResourceFilterImpl
|
