| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.hadoop.fs.http.server; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.security.authentication.server.AuthenticationFilter; |
| import javax.servlet.FilterConfig; |
| import java.io.FileReader; |
| import java.io.IOException; |
| import java.io.Reader; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| /** |
| * Subclass of hadoop-auth <code>AuthenticationFilter</code> that obtains its configuration |
| * from HttpFSServer's server configuration. |
| */ |
| @InterfaceAudience.Private |
| public class HttpFSAuthenticationFilter extends AuthenticationFilter { |
| private static final String CONF_PREFIX = "httpfs.authentication."; |
| |
| private static final String SIGNATURE_SECRET_FILE = SIGNATURE_SECRET + ".file"; |
| |
| /** |
| * Returns the hadoop-auth configuration from HttpFSServer's configuration. |
| * <p/> |
| * It returns all HttpFSServer's configuration properties prefixed with |
| * <code>httpfs.authentication</code>. The <code>httpfs.authentication</code> |
| * prefix is removed from the returned property names. |
| * |
| * @param configPrefix parameter not used. |
| * @param filterConfig parameter not used. |
| * |
| * @return hadoop-auth configuration read from HttpFSServer's configuration. |
| */ |
| @Override |
| protected Properties getConfiguration(String configPrefix, FilterConfig filterConfig) { |
| Properties props = new Properties(); |
| Configuration conf = HttpFSServerWebApp.get().getConfig(); |
| |
| props.setProperty(AuthenticationFilter.COOKIE_PATH, "/"); |
| for (Map.Entry<String, String> entry : conf) { |
| String name = entry.getKey(); |
| if (name.startsWith(CONF_PREFIX)) { |
| String value = conf.get(name); |
| name = name.substring(CONF_PREFIX.length()); |
| props.setProperty(name, value); |
| } |
| } |
| |
| if (props.getProperty(AUTH_TYPE).equals("kerberos")) { |
| props.setProperty(AUTH_TYPE, |
| HttpFSKerberosAuthenticationHandler.class.getName()); |
| } |
| |
| String signatureSecretFile = props.getProperty(SIGNATURE_SECRET_FILE, null); |
| if (signatureSecretFile == null) { |
| throw new RuntimeException("Undefined property: " + SIGNATURE_SECRET_FILE); |
| } |
| |
| try { |
| StringBuilder secret = new StringBuilder(); |
| Reader reader = new FileReader(signatureSecretFile); |
| int c = reader.read(); |
| while (c > -1) { |
| secret.append((char)c); |
| c = reader.read(); |
| } |
| reader.close(); |
| props.setProperty(AuthenticationFilter.SIGNATURE_SECRET, secret.toString()); |
| } catch (IOException ex) { |
| throw new RuntimeException("Could not read HttpFS signature secret file: " + signatureSecretFile); |
| } |
| return props; |
| } |
| |
| } |