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1
11
12 package org.eclipse.osgi.framework.internal.core;
13
14 import java.io.File  ;
15 import java.io.Serializable ;
16 import java.lang.reflect.*;
17 import java.security.*;
18 import java.util.ArrayList ;
19 import org.osgi.framework.Bundle;
20 import org.osgi.service.condpermadmin.*;
21 import org.osgi.service.permissionadmin.PermissionInfo;
22
23
29 public class ConditionalPermissionInfoImpl implements ConditionalPermissionInfo, Serializable {
30 private static final long serialVersionUID = 3258130245704825139L;
31
34 PermissionInfo perms[];
35
39 ConditionInfo conds[];
40
41
44 private String name;
45
46
50 private boolean deleted = false;
51
52
56 boolean isDeleted() {
57 return deleted;
58 }
59
60 public ConditionalPermissionInfoImpl(String encoded) {
61 decode(encoded);
62 }
63
64 public ConditionalPermissionInfoImpl(String name, ConditionInfo conds[], PermissionInfo perms[]) {
65 this.name = name;
66 this.conds = conds;
67 this.perms = perms;
68 }
69
70 private void decode(String encoded) {
71 int start = encoded.indexOf('{');
72 int end = encoded.lastIndexOf('}');
73 if (start < 0 || end < start)
74 throw new IllegalArgumentException (encoded);
75 if (start != 0)
76 name = encoded.substring(0, start);
77 char[] chars = encoded.substring(start + 1, end).toCharArray();
78 ArrayList condList = new ArrayList ();
79 ArrayList permList = new ArrayList ();
80 int pos = 0;
81 while (pos < chars.length) {
82 while (pos < chars.length && chars[pos] != '[' && chars[pos] != '(')
83 pos++;
84 if (pos == chars.length)
85 break; int startPos = pos;
87 char endChar = chars[startPos] == '[' ? ']' : ')';
88 while (chars[pos] != endChar) {
89 if (chars[pos] == '"') {
90 pos++;
91 while (chars[pos] != '"') {
92 if (chars[pos] == '\\')
93 pos++;
94 pos++;
95 }
96 }
97 pos++;
98 }
99 int endPos = pos;
100 String token = new String (chars, startPos, endPos - startPos + 1);
101 if (endChar == ']')
102 condList.add(new ConditionInfo(token));
103 else
104 permList.add(new PermissionInfo(token));
105 pos++;
106 }
107 conds = (ConditionInfo[]) condList.toArray(new ConditionInfo[condList.size()]);
108 perms = (PermissionInfo[]) permList.toArray(new PermissionInfo[permList.size()]);
109 }
110
111 public String getName() {
112 return name;
113 }
114
115
118 public ConditionInfo[] getConditionInfos() {
119 if (conds == null)
120 return null;
121 ConditionInfo[] results = new ConditionInfo[conds.length];
122 System.arraycopy(conds, 0, results, 0, conds.length);
123 return results;
124 }
125
126
127 static private final Class twoStringClassArray[] = new Class [] {String .class, String .class};
128 static private final Class oneStringClassArray[] = new Class [] {String .class};
129 static private final Class noArgClassArray[] = new Class [] {};
130 static private final Class [][] permClassArrayArgs = new Class [][] {noArgClassArray, oneStringClassArray, twoStringClassArray};
131
132 static private final Class [] condClassArray = new Class [] {Bundle.class, ConditionInfo.class};
133
134
149 int addPermissions(AbstractBundle bundle, PermissionCollection collection, Class permClass) throws SecurityException , NoSuchMethodException , IllegalArgumentException , InstantiationException , IllegalAccessException , InvocationTargetException {
150 String permClassName = permClass.getName();
151 Constructor constructor = null;
152 int numArgs = -1;
153 for (int i = permClassArrayArgs.length - 1 ; i >= 0; i--) {
154 try {
155 constructor = permClass.getConstructor(permClassArrayArgs[i]);
156 numArgs = i;
157 break;
158 } catch (NoSuchMethodException e) {
159 }
161 }
162 if (constructor == null)
163 throw new NoSuchMethodException (permClass.getName() + ".<init>()"); int count = 0;
165
168 for (int i = 0; i < perms.length; i++) {
169 if (perms[i].getType().equals(permClassName)) {
170 count++;
171 String args[] = new String [numArgs];
172 if (numArgs > 0)
173 args[0] = perms[i].getName();
174 if (numArgs > 1)
175 args[1] = perms[i].getActions();
176 if (perms[i].getType().equals("java.io.FilePermission")) { if (!args[0].equals("<<ALL FILES>>")) { File file = new File (args[0]);
180 if (!file.isAbsolute()) { if (bundle == null) continue; File target = bundle.framework.getDataFile(bundle, args[0]);
184 if (target == null) continue; args[0] = target.getPath();
187 }
188 }
189 }
190 collection.add((Permission) constructor.newInstance(args));
191 }
192 }
193 return count;
194 }
195
196
204 Condition[] getConditions(Bundle bundle) {
205 Condition conditions[] = new Condition[conds.length];
206 for (int i = 0; i < conds.length; i++) {
207
211 Class clazz;
212 try {
213 clazz = Class.forName(conds[i].getType());
214 } catch (ClassNotFoundException e) {
215
216 return null;
217 }
218 Constructor constructor = null;
219 Method method = null;
220 try {
221 method = clazz.getMethod("getCondition", condClassArray); if ((method.getModifiers() & Modifier.STATIC) == 0)
223 method = null;
224 } catch (NoSuchMethodException e) {
225 }
227 if (method == null)
228 try {
229 constructor = clazz.getConstructor(condClassArray);
230 } catch (NoSuchMethodException e) {
231 conditions[i] = Condition.FALSE;
233 continue;
234 }
235
236 Object args[] = {bundle, conds[i]};
237 try {
238 if (method != null)
239 conditions[i] = (Condition) method.invoke(null, args);
240 else
241 conditions[i] = (Condition) constructor.newInstance(args);
242 } catch (Throwable t) {
243 conditions[i] = Condition.FALSE;
245 }
246 }
247 return conditions;
248 }
249
250
253 public PermissionInfo[] getPermissionInfos() {
254 if (perms == null)
255 return null;
256 PermissionInfo[] results = new PermissionInfo[perms.length];
257 System.arraycopy(perms, 0, results, 0, perms.length);
258 return results;
259 }
260
261
265 public void delete() {
266 SecurityManager sm = System.getSecurityManager();
267 if (sm != null)
268 sm.checkPermission(new AllPermission());
269 deleted = true;
270 condAdmin.deleteConditionalPermissionInfo(this);
271 }
272
273 private static ConditionalPermissionAdminImpl condAdmin;
274
275 static void setConditionalPermissionAdminImpl(ConditionalPermissionAdminImpl condAdmin) {
276 ConditionalPermissionInfoImpl.condAdmin = condAdmin;
277 }
278
279 public String toString() {
280 StringBuffer result = new StringBuffer ();
281 if (name != null)
282 result.append(name);
283 ConditionInfo[] curConds = getConditionInfos();
284 PermissionInfo[] curPerms = getPermissionInfos();
285 result.append('{').append(' ');
286 if (curConds != null)
287 for (int i = 0; i < curConds.length; i++)
288 result.append(curConds[i].getEncoded()).append(' ');
289 if (curPerms != null)
290 for (int i = 0; i < curPerms.length; i++)
291 result.append(curPerms[i].getEncoded()).append(' ');
292 result.append('}');
293 return result.toString();
294 }
295 }
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