com.vmware.xenon.services.common.DirectoryContentService Maven / Gradle / Ivy
/*
* Copyright (c) 2017 VMware, Inc. 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 com.vmware.xenon.services.common;
import java.io.File;
import java.nio.file.Path;
import com.vmware.xenon.common.FileUtils;
import com.vmware.xenon.common.Operation;
import com.vmware.xenon.common.StatelessService;
/**
* Serves the contents of a directory, on GET
*/
public class DirectoryContentService extends StatelessService {
private final Path root;
public DirectoryContentService(Path root) {
this.root = root;
toggleOption(ServiceOption.URI_NAMESPACE_OWNER, true);
}
@Override
public void authorizeRequest(Operation op) {
op.complete();
}
@Override
public void handleGet(Operation get) {
String path = get.getUri().getPath();
if (path.contains("..")) {
// prevent serving any file by means of path manipulation
get.fail(Operation.STATUS_CODE_NOT_FOUND);
return;
}
path = path.substring(getSelfLink().length() + 1);
File file = this.root.resolve(path).toFile();
if (file.isDirectory() || !file.canRead()) {
get.fail(Operation.STATUS_CODE_NOT_FOUND);
return;
}
FileUtils.readFileAndComplete(get, file);
}
}