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GUAC-1100: Implement Simple* read-only versions of the permission sets.

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This commit is contained in:
Michael Jumper
2015-02-11 11:36:06 -08:00
parent ed4ad2a431
commit 1d2e703556
2 changed files with 256 additions and 0 deletions
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147
guacamole-ext/src/main/java/org/glyptodon/guacamole/net/auth/simple/SimpleObjectPermissionSet.java Normal file
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/*
* Copyright (C) 2015 Glyptodon LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.glyptodon.guacamole.net.auth.simple;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Set;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.GuacamoleSecurityException;
import org.glyptodon.guacamole.net.auth.permission.ObjectPermission;
import org.glyptodon.guacamole.net.auth.permission.ObjectPermissionSet;
/**
* A read-only implementation of ObjectPermissionSet which uses a backing Set
* of Permissions to determine which permissions are present.
*
* @author Michael Jumper
* @param <IdentifierType>
* The type of identifier used to identify objects affected by permissions
* stored in this SimpleObjectPermissionSet.
*
* @param <ObjectType>
* The type of objects affected by permissions stored in this
* SimpleObjectPermissionSet.
*/
public class SimpleObjectPermissionSet<IdentifierType, ObjectType>
implements ObjectPermissionSet<IdentifierType, ObjectType> {
/**
* The set of all permissions currently granted.
*/
private Set<ObjectPermission<IdentifierType>> permissions = Collections.EMPTY_SET;
/**
* Creates a new empty SimpleObjectPermissionSet.
*/
public SimpleObjectPermissionSet() {
}
/**
* Creates a new SimpleObjectPermissionSet which contains the permissions
* within the given Set.
*
* @param permissions
* The Set of permissions this SimpleObjectPermissionSet should
* contain.
*/
public SimpleObjectPermissionSet(Set<ObjectPermission<IdentifierType>> permissions) {
this.permissions = permissions;
}
/**
* Sets the Set which backs this SimpleObjectPermissionSet. Future function
* calls on this SimpleObjectPermissionSet will use the provided Set.
*
* @param permissions
* The Set of permissions this SimpleObjectPermissionSet should
* contain.
*/
protected void setPermissions(Set<ObjectPermission<IdentifierType>> permissions) {
this.permissions = permissions;
}
/**
* Returns the Set which currently backs this SimpleObjectPermissionSet.
* Changes to this Set will affect future function calls on this
* SimpleObjectPermissionSet.
*
* @return
* The Set of permissions this SimpleObjectPermissionSet currently
* contains.
*/
protected Set<ObjectPermission<IdentifierType>> getPermissions() {
return permissions;
}
@Override
public boolean hasPermission(ObjectPermission.Type permission,
IdentifierType identifier) throws GuacamoleException {
ObjectPermission<IdentifierType> objectPermission =
new ObjectPermission<IdentifierType>(permission, identifier);
return permissions.contains(objectPermission);
}
@Override
public void addPermission(ObjectPermission.Type permission,
IdentifierType identifier) throws GuacamoleException {
throw new GuacamoleSecurityException("Permission denied.");
}
@Override
public void removePermission(ObjectPermission.Type permission,
IdentifierType identifier) throws GuacamoleException {
throw new GuacamoleSecurityException("Permission denied.");
}
@Override
public Collection<IdentifierType> getAccessibleObjects(
Collection<ObjectPermission.Type> permissionTypes,
Collection<IdentifierType> identifiers) throws GuacamoleException {
Collection<IdentifierType> accessibleObjects = new ArrayList<IdentifierType>(permissions.size());
// For each identifier/permission combination
for (IdentifierType identifier : identifiers) {
for (ObjectPermission.Type permissionType : permissionTypes) {
// Add identifier if at least one requested permission is granted
ObjectPermission<IdentifierType> permission = new ObjectPermission<IdentifierType>(permissionType, identifier);
if (permissions.contains(permission)) {
accessibleObjects.add(identifier);
break;
}
}
}
return accessibleObjects;
}
}

109
guacamole-ext/src/main/java/org/glyptodon/guacamole/net/auth/simple/SimpleSystemPermissionSet.java Normal file
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/*
* Copyright (C) 2015 Glyptodon LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.glyptodon.guacamole.net.auth.simple;
import java.util.Collections;
import java.util.Set;
import org.glyptodon.guacamole.GuacamoleException;
import org.glyptodon.guacamole.GuacamoleSecurityException;
import org.glyptodon.guacamole.net.auth.permission.SystemPermission;
import org.glyptodon.guacamole.net.auth.permission.SystemPermissionSet;
/**
* A read-only implementation of SystemPermissionSet which uses a backing Set
* of Permissions to determine which permissions are present.
*
* @author Michael Jumper
*/
public class SimpleSystemPermissionSet implements SystemPermissionSet {
/**
* The set of all permissions currently granted.
*/
private Set<SystemPermission> permissions = Collections.EMPTY_SET;
/**
* Creates a new empty SimpleSystemPermissionSet.
*/
public SimpleSystemPermissionSet() {
}
/**
* Creates a new SimpleSystemPermissionSet which contains the permissions
* within the given Set.
*
* @param permissions
* The Set of permissions this SimpleSystemPermissionSet should
* contain.
*/
public SimpleSystemPermissionSet(Set<SystemPermission> permissions) {
this.permissions = permissions;
}
/**
* Sets the Set which backs this SimpleSystemPermissionSet. Future function
* calls on this SimpleSystemPermissionSet will use the provided Set.
*
* @param permissions
* The Set of permissions this SimpleSystemPermissionSet should
* contain.
*/
protected void setPermissions(Set<SystemPermission> permissions) {
this.permissions = permissions;
}
/**
* Returns the Set which currently backs this SimpleSystemPermissionSet.
* Changes to this Set will affect future function calls on this
* SimpleSystemPermissionSet.
*
* @return
* The Set of permissions this SimpleSystemPermissionSet currently
* contains.
*/
protected Set<SystemPermission> getPermissions() {
return permissions;
}
@Override
public boolean hasPermission(SystemPermission.Type permission)
throws GuacamoleException {
SystemPermission systemPermission = new SystemPermission(permission);
return permissions.contains(systemPermission);
}
@Override
public void addPermission(SystemPermission.Type permission)
throws GuacamoleException {
throw new GuacamoleSecurityException("Permission denied.");
}
@Override
public void removePermission(SystemPermission.Type permission)
throws GuacamoleException {
throw new GuacamoleSecurityException("Permission denied.");
}
}