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1
11
12 package org.eclipse.osgi.framework.internal.core;
13
14 import java.io.IOException  ;
15 import java.security.*;
16 import java.util.*;
17 import org.eclipse.osgi.framework.adaptor.PermissionStorage;
18 import org.osgi.framework.FrameworkEvent;
19 import org.osgi.service.condpermadmin.*;
20 import org.osgi.service.permissionadmin.PermissionInfo;
21
22
26 public class ConditionalPermissionAdminImpl implements ConditionalPermissionAdmin {
27 public static final ConditionalPermissionInfoImpl[] EMPTY_COND_PERM_INFO = new ConditionalPermissionInfoImpl[0];
28 public static final Condition[] EMPTY_COND = new Condition[0];
29 public static final ConditionInfo[] EMPTY_COND_INFO = new ConditionInfo[0];
30 public static final PermissionInfo[] EMPTY_PERM_INFO = new PermissionInfo[0];
31
32
35 private Vector condPerms;
36 private Framework framework;
37 private PermissionStorage storage;
38 private long nextID = System.currentTimeMillis();
39
40
44 public ConditionalPermissionAdminImpl(Framework framework, PermissionStorage permissionStorage) {
45 ConditionalPermissionInfoImpl.setConditionalPermissionAdminImpl(this);
46 this.framework = framework;
47 this.storage = permissionStorage;
48 try {
49 String [] encodedCondPerms = permissionStorage.getConditionalPermissionInfos();
50 if (encodedCondPerms != null && encodedCondPerms.length > 0) {
51 condPerms = new Vector(encodedCondPerms.length);
52 for (int i = 0; i < encodedCondPerms.length; i++)
53 condPerms.add(new ConditionalPermissionInfoImpl(encodedCondPerms[i]));
54 }
55 else
56 condPerms = new Vector(0);
57 } catch (IOException e) {
58 framework.publishFrameworkEvent(FrameworkEvent.ERROR, framework.systemBundle, e);
59 condPerms = new Vector();
60 }
61 }
62
63
66 public ConditionalPermissionInfo addConditionalPermissionInfo(ConditionInfo[] conds, PermissionInfo[] perms) {
67 return setConditionalPermissionInfo(null, conds, perms);
68 }
69
70 public ConditionalPermissionInfo setConditionalPermissionInfo(String name, ConditionInfo conds[], PermissionInfo perms[]) {
71 SecurityManager sm = System.getSecurityManager();
72 if (sm != null)
73 sm.checkPermission(new AllPermission());
74 if (name == null)
75 name = "generated_" + Long.toString(nextID++); ConditionalPermissionInfoImpl condPermInfo = null;
77 synchronized (condPerms) {
78 condPermInfo = (ConditionalPermissionInfoImpl) getConditionalPermissionInfo(name);
79 if (condPermInfo == null) {
80 condPermInfo = new ConditionalPermissionInfoImpl(name, conds, perms);
81 condPerms.add(condPermInfo);
82 } else {
83 condPermInfo.conds = conds;
84 condPermInfo.perms = perms;
85 }
86 saveCondPermInfos();
87 }
88 AbstractBundle bundles[] = framework.getAllBundles();
89 for (int i = 0; i < bundles.length; i++) {
90 AbstractBundle bundle = bundles[i];
91 if (bundle.domain == null) {
92 continue;
93 }
94 BundleCombinedPermissions bcp = (BundleCombinedPermissions) bundle.domain.getPermissions();
95
96 if (perms == null) {
97 continue;
98 }
99
100 bcp.checkConditionalPermissionInfo(condPermInfo);
101 }
102 return condPermInfo;
103 }
104
105 public ConditionalPermissionInfo getConditionalPermissionInfo(String name) {
106 for (Enumeration eCondPerms = condPerms.elements(); eCondPerms.hasMoreElements();) {
107 ConditionalPermissionInfoImpl condPerm = (ConditionalPermissionInfoImpl) eCondPerms.nextElement();
108 if (name.equals(condPerm.getName()))
109 return condPerm;
110 }
111 return null;
112 }
113
114
120 public Enumeration getConditionalPermissionInfos() {
121 synchronized (condPerms) {
122 return condPerms.elements();
123 }
124 }
125
126 void deleteConditionalPermissionInfo(ConditionalPermissionInfo cpi) {
127 synchronized (condPerms) {
128 condPerms.remove(cpi);
129 saveCondPermInfos();
130 }
131 }
132
133 private void saveCondPermInfos() {
134 try {
135 String [] encodedCondPerms = new String [condPerms.size()];
136 int i = 0;
137 for (Enumeration eCondPerms = condPerms.elements(); eCondPerms.hasMoreElements(); i++)
138 encodedCondPerms[i] = eCondPerms.nextElement().toString();
139 storage.saveConditionalPermissionInfos(encodedCondPerms);
140 } catch (IOException e) {
141 e.printStackTrace();
142 framework.publishFrameworkEvent(FrameworkEvent.ERROR, framework.systemBundle, e);
143 }
144 }
145
146
149 public AccessControlContext getAccessControlContext(String [] signers) {
150 Enumeration infos = getConditionalPermissionInfos();
151 ArrayList permissionInfos = new ArrayList();
152 if (infos != null) {
153 while (infos.hasMoreElements()) {
154 ConditionalPermissionInfoImpl condPermInfo = (ConditionalPermissionInfoImpl) infos.nextElement();
155 ConditionInfo[] condInfo = condPermInfo.getConditionInfos();
156 boolean match = true;
157 for (int i = 0; i < condInfo.length; i++) {
158 if (BundleSignerCondition.class.getName().equals(condInfo[i].getType())) {
159 String [] args = condInfo[i].getArgs();
160 for (int j = 0; j < args.length; j++)
161 if (!framework.adaptor.matchDNChain(args[j], signers)) {
162 match = false;
163 break;
164 }
165 } else {
166 match = false;
167 break;
168 }
169 }
170 if (match) {
171 PermissionInfo[] addPermInfos = condPermInfo.getPermissionInfos();
172 for (int i = 0; i < addPermInfos.length; i++)
173 permissionInfos.add(addPermInfos[i]);
174 }
175 }
176 }
177 BundlePermissionCollection collection = framework.permissionAdmin.createPermissions((PermissionInfo[]) permissionInfos.toArray(new PermissionInfo[permissionInfos.size()]), null, false);
178 return new AccessControlContext(collection == null ? new ProtectionDomain[0] : new ProtectionDomain[] {new ProtectionDomain(null, collection)});
179 }
180 }
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