/**
* 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.gateway.filter.rewrite.impl.javascript;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Pattern;
import org.apache.commons.io.IOUtils;
import org.apache.hadoop.gateway.filter.rewrite.api.UrlRewriteFilterContentDescriptor;
import org.apache.hadoop.gateway.filter.rewrite.impl.UrlRewriteFilterContentDescriptorImpl;
import org.junit.Test;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
public class JavaScriptFilterReaderTest {
public static class NoopJsFilterReader extends JavaScriptFilterReader {
public NoopJsFilterReader( Reader reader, UrlRewriteFilterContentDescriptor config ) throws IOException {
super( reader, config );
}
@Override
public String filterValueString( String name, String value, String ruleName ) {
return value;
}
}
public static class MatchRuleJsFilterReader extends JavaScriptFilterReader {
private Map<String, Map<String,String>> rules;
public MatchRuleJsFilterReader( Reader reader, Map<String, Map<String,String>> rules, UrlRewriteFilterContentDescriptor config ) throws IOException {
super( reader, config );
this.rules = rules;
}
@Override
public String filterValueString( String name, String value, String ruleName ) {
Map<String, String> rule = rules.get( ruleName );
if ( rule == null ) {
return value;
}
for ( Map.Entry<String, String> entry : rule.entrySet() ) {
if ( Pattern.compile( entry.getKey() ).matcher( value ).matches() ) {
return entry.getValue();
}
}
return value;
}
}
@Test
public void testSimple() throws IOException {
String inputJs = "function load_page() {}\n";
StringReader inputReader = new StringReader( inputJs );
UrlRewriteFilterContentDescriptor config = new UrlRewriteFilterContentDescriptorImpl();
JavaScriptFilterReader filterReader = new NoopJsFilterReader( inputReader, config );
String outputJs = new String( IOUtils.toCharArray( filterReader ) );
assertThat( outputJs, is ( inputJs ) );
}
@Test
public void testSimpleMultipleLines() throws IOException {
String inputJs =
"var url = '/webhdfs/v1' + abs_path + '?op=GET_BLOCK_LOCATIONS';\n" +
"$.ajax({\"url\": url, \"crossDomain\": true}).done(function(data) {}).error(network_error_handler(url));\n";
StringReader inputReader = new StringReader( inputJs );
UrlRewriteFilterContentDescriptor config = new UrlRewriteFilterContentDescriptorImpl();
config.addApply( "/webhdfs/v1", "test-rule" );
JavaScriptFilterReader filterReader = new NoopJsFilterReader( inputReader, config );
String outputJs = new String( IOUtils.toCharArray( filterReader ) );
assertThat( outputJs, is ( inputJs ) );
}
@Test
public void testMatchedJsContent() throws IOException {
Map<String, Map<String, String>> rules = new HashMap<String, Map<String, String>>();
Map<String, String> map = new HashMap<String, String>();
map.put( "(https?://[^/':,]+:[\\d]+)?/cluster/app", "https://knoxhost:8443/cluster/app" );
map.put( "/webhdfs/v1", "https://knoxhost:8443/webhdfs/v1" );
rules.put( "test-rule", map );
String inputJs =
"var url = '/webhdfs/v1' + abs_path + '?op=GET_BLOCK_LOCATIONS';\n" +
"$.ajax({\"url\": url, \"crossDomain\": true}).done(function(data) {\n" +
" var url = http://testhost:8088/cluster/app/application_1436831599487_0001;\n" +
"}).error(network_error_handler(url));\n";
StringReader inputReader = new StringReader( inputJs );
UrlRewriteFilterContentDescriptor config = new UrlRewriteFilterContentDescriptorImpl();
config.addApply( "(https?://[^/':,]+:[\\d]+)?/cluster/app", "test-rule" );
config.addApply( "/webhdfs/v1", "test-rule" );
JavaScriptFilterReader filterReader = new MatchRuleJsFilterReader( inputReader, rules, config );
String outputJs = new String( IOUtils.toCharArray( filterReader ) );
String expectedOutputJs =
"var url = 'https://knoxhost:8443/webhdfs/v1' + abs_path + '?op=GET_BLOCK_LOCATIONS';\n" +
"$.ajax({\"url\": url, \"crossDomain\": true}).done(function(data) {\n" +
" var url = https://knoxhost:8443/cluster/app/application_1436831599487_0001;\n" +
"}).error(network_error_handler(url));\n";
assertThat( outputJs, is ( expectedOutputJs ) );
}
}