public Event newEvent(Session session, EventType type, TokenHolder tokenHolder) {
BasicEventContext c = current();
Event e = new Event();
e.setType(type);
e.setTime(new Timestamp(System.currentTimeMillis()));
tokenHolder.setToken(e.getGraphHolder());
e.getDetails().setPermissions(Permissions.READ_ONLY);
// Proxied if necessary
e.setExperimenter(c.getOwner());
e.setExperimenterGroup(c.getGroup());
e.setSession(session);
c.setEvent(e);
return e;
}
public boolean allowCreation(IObject iObject) {
Assert.notNull(iObject);
Class<?> cls = iObject.getClass();
boolean sysType = sysTypes.isSystemType(cls) || sysTypes.isInSystemGroup(iObject.getDetails());
if (!sysType && currentUser.isGraphCritical()) { // ticket:1769
Long uid = currentUser.getOwner().getId();
return objectBelongsToUser(iObject, uid);
} else if (tokenHolder.hasPrivilegedToken(iObject)
|| currentUser.getCurrentEventContext().isCurrentUserAdmin()) {
return true;
} else if (sysType) {
return false;
}
return true;
}
private boolean allowUpdateOrDelete(IObject iObject, Details trustedDetails, boolean update) {
Assert.notNull(iObject);
BasicEventContext c = currentUser.current();
Long uid = c.getCurrentUserId();
boolean sysType =
sysTypes.isSystemType(iObject.getClass()) || sysTypes.isInSystemGroup(iObject.getDetails());
// needs no details info
if (tokenHolder.hasPrivilegedToken(iObject)) {
return true; // ticket:1794, allow move to "user
} else if (update && !sysType && currentUser.isGraphCritical()) { // ticket:1769
return objectBelongsToUser(iObject, uid);
} else if (c.isCurrentUserAdmin()) {
return true;
} else if (sysType) {
return false;
}
// previously we were taking the details directly from iObject
// iObject, however, is in a critical state. Values such as
// Permissions, owner, and group may have been changed.
Details d = trustedDetails;
// this can now only happen if a table doesn't have permissions
// and there aren't any of those. so let it be updated.
if (d == null) {
return true;
}
// the owner and group information might be null if the type
// is intended to be a system-type but isn't marked as one
// via SecuritySystem.isSystemType(). A NPE here might imply
// that that information is out of sync.
Long o = d.getOwner() == null ? null : d.getOwner().getId();
Long g = d.getGroup() == null ? null : d.getGroup().getId();
// needs no permissions info
if (g != null && c.getLeaderOfGroupsList().contains(g)) {
return true;
}
Permissions p = d.getPermissions();
// this should never occur.
if (p == null) {
throw new InternalException(
"Permissions null! Security system "
+ "failure -- refusing to continue. The Permissions should "
+ "be set to a default value.");
}
// standard
if (p.isGranted(WORLD, WRITE)) {
return true;
}
if (p.isGranted(USER, WRITE) && o != null && o.equals(c.getOwner().getId())) {
return true;
}
/* ticket:1992 - removing concept of GROUP-WRITE
if (p.isGranted(GROUP, WRITE) && g != null
&& c.getMemberOfGroupsList().contains(g)) {
return true;
}
*/
return false;
}
