| /* |
| * Copyright (c) OSGi Alliance (2000, 2009). All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.osgi.framework; |
| |
| import java.io.IOException; |
| import java.io.NotSerializableException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.ObjectStreamField; |
| import java.security.AccessController; |
| import java.security.BasicPermission; |
| import java.security.Permission; |
| import java.security.PermissionCollection; |
| import java.security.PrivilegedAction; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Dictionary; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.Hashtable; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * A bundle's authority to import or export a package. |
| * |
| * <p> |
| * A package is a dot-separated string that defines a fully qualified Java |
| * package. |
| * <p> |
| * For example: |
| * |
| * <pre> |
| * org.osgi.service.http |
| * </pre> |
| * |
| * <p> |
| * <code>PackagePermission</code> has three actions: <code>exportonly</code>, |
| * <code>import</code> and <code>export</code>. The <code>export</code> action, |
| * which is deprecated, implies the <code>import</code> action. |
| * |
| * @ThreadSafe |
| * @version $Revision: 7189 $ |
| */ |
| |
| public final class PackagePermission extends BasicPermission { |
| static final long serialVersionUID = -5107705877071099135L; |
| |
| /** |
| * The action string <code>export</code>. The <code>export</code> action |
| * implies the <code>import</code> action. |
| * |
| * @deprecated Since 1.5. Use <code>exportonly</code> instead. |
| */ |
| public final static String EXPORT = "export"; |
| |
| /** |
| * The action string <code>exportonly</code>. The <code>exportonly</code> |
| * action does not imply the <code>import</code> action. |
| * |
| * @since 1.5 |
| */ |
| public final static String EXPORTONLY = "exportonly"; |
| |
| /** |
| * The action string <code>import</code>. |
| */ |
| public final static String IMPORT = "import"; |
| |
| private final static int ACTION_EXPORT = 0x00000001; |
| private final static int ACTION_IMPORT = 0x00000002; |
| private final static int ACTION_ALL = ACTION_EXPORT |
| | ACTION_IMPORT; |
| final static int ACTION_NONE = 0; |
| |
| /** |
| * The actions mask. |
| */ |
| transient int action_mask; |
| |
| /** |
| * The actions in canonical form. |
| * |
| * @serial |
| */ |
| private volatile String actions = null; |
| |
| /** |
| * The bundle used by this PackagePermission. |
| */ |
| transient final Bundle bundle; |
| |
| /** |
| * If this PackagePermission was constructed with a filter, this holds a |
| * Filter matching object used to evaluate the filter in implies. |
| */ |
| transient Filter filter; |
| |
| /** |
| * This dictionary holds the properties of the permission, used to match a |
| * filter in implies. This is not initialized until necessary, and then |
| * cached in this object. |
| */ |
| private transient volatile Dictionary properties; |
| |
| /** |
| * Creates a new <code>PackagePermission</code> object. |
| * |
| * <p> |
| * The name is specified as a normal Java package name: a dot-separated |
| * string. Wildcards may be used. |
| * |
| * <pre> |
| * name ::= <package name> | <package name ending in ".*"> | * |
| * </pre> |
| * |
| * Examples: |
| * |
| * <pre> |
| * org.osgi.service.http |
| * javax.servlet.* |
| * * |
| * </pre> |
| * |
| * For the <code>import</code> action, the name can also be a filter |
| * expression. The filter gives access to the following attributes: |
| * <ul> |
| * <li>signer - A Distinguished Name chain used to sign the exporting |
| * bundle. Wildcards in a DN are not matched according to the filter string |
| * rules, but according to the rules defined for a DN chain.</li> |
| * <li>location - The location of the exporting bundle.</li> |
| * <li>id - The bundle ID of the exporting bundle.</li> |
| * <li>name - The symbolic name of the exporting bundle.</li> |
| * <li>package.name - The name of the requested package.</li> |
| * </ul> |
| * Filter attribute names are processed in a case sensitive manner. |
| * |
| * <p> |
| * Package Permissions are granted over all possible versions of a package. |
| * |
| * A bundle that needs to export a package must have the appropriate |
| * <code>PackagePermission</code> for that package; similarly, a bundle that |
| * needs to import a package must have the appropriate |
| * <code>PackagePermssion</code> for that package. |
| * <p> |
| * Permission is granted for both classes and resources. |
| * |
| * @param name Package name or filter expression. A filter expression can |
| * only be specified if the specified action is <code>import</code>. |
| * @param actions <code>exportonly</code>,<code>import</code> (canonical |
| * order). |
| * @throws IllegalArgumentException If the specified name is a filter |
| * expression and either the specified action is not |
| * <code>import</code> or the filter has an invalid syntax. |
| */ |
| public PackagePermission(String name, String actions) { |
| this(name, parseActions(actions)); |
| if ((filter != null) |
| && ((action_mask & ACTION_ALL) != ACTION_IMPORT)) { |
| throw new IllegalArgumentException( |
| "invalid action string for filter expression"); |
| } |
| } |
| |
| /** |
| * Creates a new requested <code>PackagePermission</code> object to be used |
| * by code that must perform <code>checkPermission</code> for the |
| * <code>import</code> action. <code>PackagePermission</code> objects |
| * created with this constructor cannot be added to a |
| * <code>PackagePermission</code> permission collection. |
| * |
| * @param name The name of the requested package to import. |
| * @param exportingBundle The bundle exporting the requested package. |
| * @param actions The action <code>import</code>. |
| * @throws IllegalArgumentException If the specified action is not |
| * <code>import</code> or the name is a filter expression. |
| * @since 1.5 |
| */ |
| public PackagePermission(String name, Bundle exportingBundle, String actions) { |
| super(name); |
| setTransients(name, parseActions(actions)); |
| this.bundle = exportingBundle; |
| if (exportingBundle == null) { |
| throw new IllegalArgumentException("bundle must not be null"); |
| } |
| if (filter != null) { |
| throw new IllegalArgumentException("invalid name"); |
| } |
| if ((action_mask & ACTION_ALL) != ACTION_IMPORT) { |
| throw new IllegalArgumentException("invalid action string"); |
| } |
| } |
| |
| /** |
| * Package private constructor used by PackagePermissionCollection. |
| * |
| * @param name package name |
| * @param mask action mask |
| */ |
| PackagePermission(String name, int mask) { |
| super(name); |
| setTransients(name, mask); |
| this.bundle = null; |
| } |
| |
| /** |
| * Called by constructors and when deserialized. |
| * |
| * @param mask action mask |
| */ |
| private void setTransients(String name, int mask) { |
| if ((mask == ACTION_NONE) || ((mask & ACTION_ALL) != mask)) { |
| throw new IllegalArgumentException("invalid action string"); |
| } |
| action_mask = mask; |
| filter = parseFilter(name); |
| } |
| |
| /** |
| * Parse action string into action mask. |
| * |
| * @param actions Action string. |
| * @return action mask. |
| */ |
| private static int parseActions(String actions) { |
| boolean seencomma = false; |
| |
| int mask = ACTION_NONE; |
| |
| if (actions == null) { |
| return mask; |
| } |
| |
| char[] a = actions.toCharArray(); |
| |
| int i = a.length - 1; |
| if (i < 0) |
| return mask; |
| |
| while (i != -1) { |
| char c; |
| |
| // skip whitespace |
| while ((i != -1) |
| && ((c = a[i]) == ' ' || c == '\r' || c == '\n' |
| || c == '\f' || c == '\t')) |
| i--; |
| |
| // check for the known strings |
| int matchlen; |
| |
| if (i >= 5 && (a[i - 5] == 'i' || a[i - 5] == 'I') |
| && (a[i - 4] == 'm' || a[i - 4] == 'M') |
| && (a[i - 3] == 'p' || a[i - 3] == 'P') |
| && (a[i - 2] == 'o' || a[i - 2] == 'O') |
| && (a[i - 1] == 'r' || a[i - 1] == 'R') |
| && (a[i] == 't' || a[i] == 'T')) { |
| matchlen = 6; |
| mask |= ACTION_IMPORT; |
| |
| } |
| else |
| if (i >= 5 && (a[i - 5] == 'e' || a[i - 5] == 'E') |
| && (a[i - 4] == 'x' || a[i - 4] == 'X') |
| && (a[i - 3] == 'p' || a[i - 3] == 'P') |
| && (a[i - 2] == 'o' || a[i - 2] == 'O') |
| && (a[i - 1] == 'r' || a[i - 1] == 'R') |
| && (a[i] == 't' || a[i] == 'T')) { |
| matchlen = 6; |
| mask |= ACTION_EXPORT | ACTION_IMPORT; |
| |
| } |
| else { |
| if (i >= 9 && (a[i - 9] == 'e' || a[i - 9] == 'E') |
| && (a[i - 8] == 'x' || a[i - 8] == 'X') |
| && (a[i - 7] == 'p' || a[i - 7] == 'P') |
| && (a[i - 6] == 'o' || a[i - 6] == 'O') |
| && (a[i - 5] == 'r' || a[i - 5] == 'R') |
| && (a[i - 4] == 't' || a[i - 4] == 'T') |
| && (a[i - 3] == 'o' || a[i - 3] == 'O') |
| && (a[i - 2] == 'n' || a[i - 2] == 'N') |
| && (a[i - 1] == 'l' || a[i - 1] == 'L') |
| && (a[i] == 'y' || a[i] == 'Y')) { |
| matchlen = 10; |
| mask |= ACTION_EXPORT; |
| |
| } |
| else { |
| // parse error |
| throw new IllegalArgumentException( |
| "invalid permission: " + actions); |
| } |
| } |
| |
| // make sure we didn't just match the tail of a word |
| // like "ackbarfimport". Also, skip to the comma. |
| seencomma = false; |
| while (i >= matchlen && !seencomma) { |
| switch (a[i - matchlen]) { |
| case ',' : |
| seencomma = true; |
| /* FALLTHROUGH */ |
| case ' ' : |
| case '\r' : |
| case '\n' : |
| case '\f' : |
| case '\t' : |
| break; |
| default : |
| throw new IllegalArgumentException( |
| "invalid permission: " + actions); |
| } |
| i--; |
| } |
| |
| // point i at the location of the comma minus one (or -1). |
| i -= matchlen; |
| } |
| |
| if (seencomma) { |
| throw new IllegalArgumentException("invalid permission: " + actions); |
| } |
| |
| return mask; |
| } |
| |
| /** |
| * Parse filter string into a Filter object. |
| * |
| * @param filterString The filter string to parse. |
| * @return a Filter for this bundle. If the specified filterString is not a |
| * filter expression, then <code>null</code> is returned. |
| * @throws IllegalArgumentException If the filter syntax is invalid. |
| */ |
| private static Filter parseFilter(String filterString) { |
| filterString = filterString.trim(); |
| if (filterString.charAt(0) != '(') { |
| return null; |
| } |
| |
| try { |
| return FrameworkUtil.createFilter(filterString); |
| } |
| catch (InvalidSyntaxException e) { |
| IllegalArgumentException iae = new IllegalArgumentException( |
| "invalid filter"); |
| iae.initCause(e); |
| throw iae; |
| } |
| } |
| |
| /** |
| * Determines if the specified permission is implied by this object. |
| * |
| * <p> |
| * This method checks that the package name of the target is implied by the |
| * package name of this object. The list of <code>PackagePermission</code> |
| * actions must either match or allow for the list of the target object to |
| * imply the target <code>PackagePermission</code> action. |
| * <p> |
| * The permission to export a package implies the permission to import the |
| * named package. |
| * |
| * <pre> |
| * x.y.*,"export" -> x.y.z,"export" is true |
| * *,"import" -> x.y, "import" is true |
| * *,"export" -> x.y, "import" is true |
| * x.y,"export" -> x.y.z, "export" is false |
| * </pre> |
| * |
| * @param p The requested permission. |
| * @return <code>true</code> if the specified permission is implied by this |
| * object; <code>false</code> otherwise. |
| */ |
| public boolean implies(Permission p) { |
| if (!(p instanceof PackagePermission)) { |
| return false; |
| } |
| PackagePermission requested = (PackagePermission) p; |
| if (bundle != null) { |
| return false; |
| } |
| // if requested permission has a filter, then it is an invalid argument |
| if (requested.filter != null) { |
| return false; |
| } |
| return implies0(requested, ACTION_NONE); |
| } |
| |
| /** |
| * Internal implies method. Used by the implies and the permission |
| * collection implies methods. |
| * |
| * @param requested The requested PackagePermission which has already be |
| * validated as a proper argument. The requested PackagePermission |
| * must not have a filter expression. |
| * @param effective The effective actions with which to start. |
| * @return <code>true</code> if the specified permission is implied by this |
| * object; <code>false</code> otherwise. |
| */ |
| boolean implies0(PackagePermission requested, int effective) { |
| /* check actions first - much faster */ |
| effective |= action_mask; |
| final int desired = requested.action_mask; |
| if ((effective & desired) != desired) { |
| return false; |
| } |
| /* Get filter if any */ |
| Filter f = filter; |
| if (f == null) { |
| return super.implies(requested); |
| } |
| return f.matchCase(requested.getProperties()); |
| } |
| |
| /** |
| * Returns the canonical string representation of the |
| * <code>PackagePermission</code> actions. |
| * |
| * <p> |
| * Always returns present <code>PackagePermission</code> actions in the |
| * following order: <code>EXPORTONLY</code>,<code>IMPORT</code>. |
| * |
| * @return Canonical string representation of the |
| * <code>PackagePermission</code> actions. |
| */ |
| public String getActions() { |
| String result = actions; |
| if (result == null) { |
| StringBuffer sb = new StringBuffer(); |
| boolean comma = false; |
| |
| int mask = action_mask; |
| if ((mask & ACTION_EXPORT) == ACTION_EXPORT) { |
| sb.append(EXPORTONLY); |
| comma = true; |
| } |
| |
| if ((mask & ACTION_IMPORT) == ACTION_IMPORT) { |
| if (comma) |
| sb.append(','); |
| sb.append(IMPORT); |
| } |
| |
| actions = result = sb.toString(); |
| } |
| return result; |
| } |
| |
| /** |
| * Returns a new <code>PermissionCollection</code> object suitable for |
| * storing <code>PackagePermission</code> objects. |
| * |
| * @return A new <code>PermissionCollection</code> object. |
| */ |
| public PermissionCollection newPermissionCollection() { |
| return new PackagePermissionCollection(); |
| } |
| |
| /** |
| * Determines the equality of two <code>PackagePermission</code> objects. |
| * |
| * This method checks that specified package has the same package name and |
| * <code>PackagePermission</code> actions as this |
| * <code>PackagePermission</code> object. |
| * |
| * @param obj The object to test for equality with this |
| * <code>PackagePermission</code> object. |
| * @return <code>true</code> if <code>obj</code> is a |
| * <code>PackagePermission</code>, and has the same package name and |
| * actions as this <code>PackagePermission</code> object; |
| * <code>false</code> otherwise. |
| */ |
| public boolean equals(Object obj) { |
| if (obj == this) { |
| return true; |
| } |
| |
| if (!(obj instanceof PackagePermission)) { |
| return false; |
| } |
| |
| PackagePermission pp = (PackagePermission) obj; |
| |
| return (action_mask == pp.action_mask) |
| && getName().equals(pp.getName()) |
| && ((bundle == pp.bundle) || ((bundle != null) && bundle |
| .equals(pp.bundle))); |
| } |
| |
| /** |
| * Returns the hash code value for this object. |
| * |
| * @return A hash code value for this object. |
| */ |
| public int hashCode() { |
| int h = 31 * 17 + getName().hashCode(); |
| h = 31 * h + getActions().hashCode(); |
| if (bundle != null) { |
| h = 31 * h + bundle.hashCode(); |
| } |
| return h; |
| } |
| |
| /** |
| * WriteObject is called to save the state of this permission object to a |
| * stream. The actions are serialized, and the superclass takes care of the |
| * name. |
| */ |
| private synchronized void writeObject(java.io.ObjectOutputStream s) |
| throws IOException { |
| if (bundle != null) { |
| throw new NotSerializableException("cannot serialize"); |
| } |
| // Write out the actions. The superclass takes care of the name |
| // call getActions to make sure actions field is initialized |
| if (actions == null) |
| getActions(); |
| s.defaultWriteObject(); |
| } |
| |
| /** |
| * readObject is called to restore the state of this permission from a |
| * stream. |
| */ |
| private synchronized void readObject(java.io.ObjectInputStream s) |
| throws IOException, ClassNotFoundException { |
| // Read in the action, then initialize the rest |
| s.defaultReadObject(); |
| setTransients(getName(), parseActions(actions)); |
| } |
| |
| /** |
| * Called by <code><@link PackagePermission#implies(Permission)></code>. |
| * |
| * @return a dictionary of properties for this permission. |
| */ |
| private Dictionary getProperties() { |
| Dictionary result = properties; |
| if (result != null) { |
| return result; |
| } |
| final Dictionary dict = new Hashtable(5); |
| if (filter == null) { |
| dict.put("package.name", getName()); |
| } |
| if (bundle != null) { |
| AccessController.doPrivileged(new PrivilegedAction() { |
| public Object run() { |
| dict.put("id", new Long(bundle.getBundleId())); |
| dict.put("location", bundle.getLocation()); |
| String name = bundle.getSymbolicName(); |
| if (name != null) { |
| dict.put("name", name); |
| } |
| SignerProperty signer = new SignerProperty(bundle); |
| if (signer.isBundleSigned()) { |
| dict.put("signer", signer); |
| } |
| return null; |
| } |
| }); |
| } |
| return properties = dict; |
| } |
| } |
| |
| /** |
| * Stores a set of <code>PackagePermission</code> permissions. |
| * |
| * @see java.security.Permission |
| * @see java.security.Permissions |
| * @see java.security.PermissionCollection |
| */ |
| |
| final class PackagePermissionCollection extends PermissionCollection { |
| static final long serialVersionUID = -3350758995234427603L; |
| /** |
| * Table of permissions with names. |
| * |
| * @GuardedBy this |
| */ |
| private transient Map permissions; |
| |
| /** |
| * Boolean saying if "*" is in the collection. |
| * |
| * @serial |
| * @GuardedBy this |
| */ |
| private boolean all_allowed; |
| |
| /** |
| * Table of permissions with filter expressions. |
| * |
| * @serial |
| * @GuardedBy this |
| */ |
| private Map filterPermissions; |
| |
| /** |
| * Create an empty PackagePermissions object. |
| */ |
| public PackagePermissionCollection() { |
| permissions = new HashMap(); |
| all_allowed = false; |
| } |
| |
| /** |
| * Adds a permission to this permission collection. |
| * |
| * @param permission The <code>PackagePermission</code> object to add. |
| * @throws IllegalArgumentException If the specified permission is not a |
| * <code>PackagePermission</code> instance or was constructed with a |
| * Bundle object. |
| * @throws SecurityException If this |
| * <code>PackagePermissionCollection</code> object has been marked |
| * read-only. |
| */ |
| public void add(final Permission permission) { |
| if (!(permission instanceof PackagePermission)) { |
| throw new IllegalArgumentException("invalid permission: " |
| + permission); |
| } |
| if (isReadOnly()) { |
| throw new SecurityException("attempt to add a Permission to a " |
| + "readonly PermissionCollection"); |
| } |
| |
| final PackagePermission pp = (PackagePermission) permission; |
| if (pp.bundle != null) { |
| throw new IllegalArgumentException("cannot add to collection: " |
| + pp); |
| } |
| |
| final String name = pp.getName(); |
| final Filter f = pp.filter; |
| synchronized (this) { |
| /* select the bucket for the permission */ |
| Map pc; |
| if (f != null) { |
| pc = filterPermissions; |
| if (pc == null) { |
| filterPermissions = pc = new HashMap(); |
| } |
| } |
| else { |
| pc = permissions; |
| } |
| |
| final PackagePermission existing = (PackagePermission) pc.get(name); |
| if (existing != null) { |
| final int oldMask = existing.action_mask; |
| final int newMask = pp.action_mask; |
| if (oldMask != newMask) { |
| pc |
| .put(name, new PackagePermission(name, oldMask |
| | newMask)); |
| |
| } |
| } |
| else { |
| pc.put(name, pp); |
| } |
| |
| if (!all_allowed) { |
| if (name.equals("*")) { |
| all_allowed = true; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Determines if the specified permissions implies the permissions expressed |
| * in <code>permission</code>. |
| * |
| * @param permission The Permission object to compare with this |
| * <code>PackagePermission</code> object. |
| * @return <code>true</code> if <code>permission</code> is a proper subset |
| * of a permission in the set; <code>false</code> otherwise. |
| */ |
| public boolean implies(final Permission permission) { |
| if (!(permission instanceof PackagePermission)) { |
| return false; |
| } |
| final PackagePermission requested = (PackagePermission) permission; |
| /* if requested permission has a filter, then it is an invalid argument */ |
| if (requested.filter != null) { |
| return false; |
| } |
| String requestedName = requested.getName(); |
| final int desired = requested.action_mask; |
| int effective = PackagePermission.ACTION_NONE; |
| |
| Collection perms; |
| synchronized (this) { |
| Map pc = permissions; |
| PackagePermission pp; |
| /* short circuit if the "*" Permission was added */ |
| if (all_allowed) { |
| pp = (PackagePermission) pc.get("*"); |
| if (pp != null) { |
| effective |= pp.action_mask; |
| if ((effective & desired) == desired) { |
| return true; |
| } |
| } |
| } |
| /* |
| * strategy: Check for full match first. Then work our way up the |
| * name looking for matches on a.b.* |
| */ |
| pp = (PackagePermission) pc.get(requestedName); |
| if (pp != null) { |
| /* we have a direct hit! */ |
| effective |= pp.action_mask; |
| if ((effective & desired) == desired) { |
| return true; |
| } |
| } |
| /* work our way up the tree... */ |
| int last; |
| int offset = requestedName.length() - 1; |
| while ((last = requestedName.lastIndexOf(".", offset)) != -1) { |
| requestedName = requestedName.substring(0, last + 1) + "*"; |
| pp = (PackagePermission) pc.get(requestedName); |
| if (pp != null) { |
| effective |= pp.action_mask; |
| if ((effective & desired) == desired) { |
| return true; |
| } |
| } |
| offset = last - 1; |
| } |
| /* |
| * we don't have to check for "*" as it was already checked before |
| * we were called. |
| */ |
| pc = filterPermissions; |
| if (pc == null) { |
| return false; |
| } |
| perms = pc.values(); |
| } |
| /* iterate one by one over filteredPermissions */ |
| for (Iterator iter = perms.iterator(); iter.hasNext();) { |
| if (((PackagePermission) iter.next()) |
| .implies0(requested, effective)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Returns an enumeration of all <code>PackagePermission</code> objects in |
| * the container. |
| * |
| * @return Enumeration of all <code>PackagePermission</code> objects. |
| */ |
| public synchronized Enumeration elements() { |
| List all = new ArrayList(permissions.values()); |
| Map pc = filterPermissions; |
| if (pc != null) { |
| all.addAll(pc.values()); |
| } |
| return Collections.enumeration(all); |
| } |
| |
| /* serialization logic */ |
| private static final ObjectStreamField[] serialPersistentFields = { |
| new ObjectStreamField("permissions", Hashtable.class), |
| new ObjectStreamField("all_allowed", Boolean.TYPE), |
| new ObjectStreamField("filterPermissions", HashMap.class) }; |
| |
| private synchronized void writeObject(ObjectOutputStream out) |
| throws IOException { |
| Hashtable hashtable = new Hashtable(permissions); |
| ObjectOutputStream.PutField pfields = out.putFields(); |
| pfields.put("permissions", hashtable); |
| pfields.put("all_allowed", all_allowed); |
| pfields.put("filterPermissions", filterPermissions); |
| out.writeFields(); |
| } |
| |
| private synchronized void readObject(java.io.ObjectInputStream in) |
| throws IOException, ClassNotFoundException { |
| ObjectInputStream.GetField gfields = in.readFields(); |
| Hashtable hashtable = (Hashtable) gfields.get("permissions", null); |
| permissions = new HashMap(hashtable); |
| all_allowed = gfields.get("all_allowed", false); |
| filterPermissions = (HashMap) gfields.get("filterPermissions", null); |
| } |
| } |