public CommandRequestInterface doDupeCheck(CommandRequest request) {
		try {
			User user = request.getSession().getUserNull(request.getUser());
			InodeHandle inode = request.getCurrentDirectory().getInodeHandle(request.getArgument(), user);

			if (inode.isLink()) {
				// Ignore, don't care about links
				return request;
			}

			IndexEngineInterface ie = GlobalContext.getGlobalContext().getIndexEngine();
			Map<String,String> inodes;

			AdvancedSearchParams params = new AdvancedSearchParams();
			params.setName(request.getArgument());
			params.setExact(true);

			try {
				inodes = ie.advancedFind(GlobalContext.getGlobalContext().getRoot(), params);
			} catch (IndexException e) {
				//Index Exception while searching
				logger.error(e.getMessage());
				return request;
			} catch (IllegalArgumentException e) {
				//Invalid Arguement while searching
				logger.info(e.getMessage());
				return request;
			}

			if (!inodes.isEmpty()) {
				for (Map.Entry<String,String> item : inodes.entrySet()) {
					boolean isDupe = false;

					InodeHandle sinode = item.getValue().equals("d") ? new DirectoryHandle(item.getKey()) : new FileHandle(item.getKey());

					try {
						if (inode.getPluginMetaData(DupeCheckFileData.DUPE)) {
							isDupe = true;
						}
					} catch (KeyNotFoundException e) {
						// This is fine, means file/dir has not been un-duped
						isDupe = true;
					} catch (FileNotFoundException e) {
						// File not found, not good, index refers to file that does not exist
						logger.warn("Index Contained an unexistent inode: " + item.getKey());
					}

					if (isDupe) {
				        ConfigInterface config = GlobalContext.getConfig();
						if (config.checkPathPermission("dupecheck", user, request.getCurrentDirectory())) {
							request.setDeniedResponse(new CommandResponse(400,"File/Dir Already Exists: " + sinode.getPath()));
							request.setAllowed(false);
							return request;
						}
					}


				}

			}

			return request;
		} catch (FileNotFoundException e) {
			// File not found, let RETR handle it
			return request;
		}
	}