io.undertow.attribute.RelativePathAttribute Maven / Gradle / Ivy
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* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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
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*/
package io.undertow.attribute;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.QueryParameterUtils;
/**
* The relative path
*
* @author Stuart Douglas
*/
public class RelativePathAttribute implements ExchangeAttribute {
public static final String RELATIVE_PATH_SHORT = "%R";
public static final String RELATIVE_PATH = "%{RELATIVE_PATH}";
public static final ExchangeAttribute INSTANCE = new RelativePathAttribute();
private RelativePathAttribute() {
}
@Override
public String readAttribute(final HttpServerExchange exchange) {
return exchange.getRelativePath();
}
@Override
public void writeAttribute(final HttpServerExchange exchange, final String newValue) throws ReadOnlyAttributeException {
int pos = newValue.indexOf('?');
if (pos == -1) {
exchange.setRelativePath(newValue);
String requestURI = exchange.getResolvedPath() + newValue;
if(requestURI.contains("%")) {
//as the request URI is supposed to be encoded we need to replace
//percent characters with their encoded form, otherwise we can run into issues
//where the percent will be taked to be a encoded character
//TODO: should we fully encode this? It seems like it also has the potential to cause issues, and encoding the percent character is probably enough
exchange.setRequestURI(requestURI.replaceAll("%", "%25"));
} else {
exchange.setRequestURI(requestURI);
}
exchange.setRequestPath(requestURI);
} else {
final String path = newValue.substring(0, pos);
exchange.setRelativePath(path);
String requestURI = exchange.getResolvedPath() + path;
if(requestURI.contains("%")) {
exchange.setRequestURI(requestURI.replaceAll("%", "%25"));
} else {
exchange.setRequestURI(requestURI);
}
exchange.setRequestPath(requestURI);
final String newQueryString = newValue.substring(pos);
exchange.setQueryString(newQueryString);
exchange.getQueryParameters().putAll(QueryParameterUtils.parseQueryString(newQueryString.substring(1), QueryParameterUtils.getQueryParamEncoding(exchange)));
}
}
@Override
public String toString() {
return RELATIVE_PATH;
}
public static final class Builder implements ExchangeAttributeBuilder {
@Override
public String name() {
return "Relative Path";
}
@Override
public ExchangeAttribute build(final String token) {
return token.equals(RELATIVE_PATH) || token.equals(RELATIVE_PATH_SHORT) ? INSTANCE : null;
}
@Override
public int priority() {
return 0;
}
}
}