/**
* 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.hbase.http;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.Set;
import java.util.TreeSet;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.SmallTests;
import org.apache.hadoop.hbase.http.FilterContainer;
import org.apache.hadoop.hbase.http.FilterInitializer;
import org.apache.hadoop.hbase.http.HttpServer;
import org.apache.hadoop.net.NetUtils;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category(SmallTests.class)
public class TestPathFilter extends HttpServerFunctionalTest {
static final Log LOG = LogFactory.getLog(HttpServer.class);
static final Set<String> RECORDS = new TreeSet<String>();
/** A very simple filter that records accessed uri's */
static public class RecordingFilter implements Filter {
private FilterConfig filterConfig = null;
@Override
public void init(FilterConfig filterConfig) {
this.filterConfig = filterConfig;
}
@Override
public void destroy() {
this.filterConfig = null;
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
if (filterConfig == null)
return;
String uri = ((HttpServletRequest)request).getRequestURI();
LOG.info("filtering " + uri);
RECORDS.add(uri);
chain.doFilter(request, response);
}
/** Configuration for RecordingFilter */
static public class Initializer extends FilterInitializer {
public Initializer() {}
@Override
public void initFilter(FilterContainer container, Configuration conf) {
container.addFilter("recording", RecordingFilter.class.getName(), null);
}
}
}
/** access a url, ignoring some IOException such as the page does not exist */
static void access(String urlstring) throws IOException {
LOG.warn("access " + urlstring);
URL url = new URL(urlstring);
URLConnection connection = url.openConnection();
connection.connect();
try {
BufferedReader in = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
try {
for(; in.readLine() != null; );
} finally {
in.close();
}
} catch(IOException ioe) {
LOG.warn("urlstring=" + urlstring, ioe);
}
}
@Test
public void testPathSpecFilters() throws Exception {
Configuration conf = new Configuration();
//start a http server with CountingFilter
conf.set(HttpServer.FILTER_INITIALIZERS_PROPERTY,
RecordingFilter.Initializer.class.getName());
String[] pathSpecs = { "/path", "/path/*" };
HttpServer http = createTestServer(conf, pathSpecs);
http.start();
final String baseURL = "/path";
final String baseSlashURL = "/path/";
final String addedURL = "/path/nodes";
final String addedSlashURL = "/path/nodes/";
final String longURL = "/path/nodes/foo/job";
final String rootURL = "/";
final String allURL = "/*";
final String[] filteredUrls = {baseURL, baseSlashURL, addedURL,
addedSlashURL, longURL};
final String[] notFilteredUrls = {rootURL, allURL};
// access the urls and verify our paths specs got added to the
// filters
final String prefix = "http://"
+ NetUtils.getHostPortString(http.getConnectorAddress(0));
try {
for(int i = 0; i < filteredUrls.length; i++) {
access(prefix + filteredUrls[i]);
}
for(int i = 0; i < notFilteredUrls.length; i++) {
access(prefix + notFilteredUrls[i]);
}
} finally {
http.stop();
}
LOG.info("RECORDS = " + RECORDS);
//verify records
for(int i = 0; i < filteredUrls.length; i++) {
assertTrue(RECORDS.remove(filteredUrls[i]));
}
assertTrue(RECORDS.isEmpty());
}
}