/*
* 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.wicket;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.wicket.request.IRequestHandler;
import org.apache.wicket.request.IRequestMapper;
import org.apache.wicket.request.IWritableRequestParameters;
import org.apache.wicket.request.Request;
import org.apache.wicket.request.Url;
import org.apache.wicket.request.Url.QueryParameter;
import org.apache.wicket.request.cycle.RequestCycle;
import org.apache.wicket.request.flow.ResetResponseException;
import org.apache.wicket.core.request.handler.PageProvider;
import org.apache.wicket.core.request.handler.RenderPageRequestHandler;
import org.apache.wicket.core.request.handler.RenderPageRequestHandler.RedirectPolicy;
import org.apache.wicket.request.http.WebRequest;
import org.apache.wicket.request.http.handler.RedirectRequestHandler;
import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.apache.wicket.util.string.StringValue;
/**
* Causes Wicket to interrupt current request processing and immediately redirect to an intercept
* page.
*/
public class RestartResponseAtInterceptPageException extends ResetResponseException
{
private static final long serialVersionUID = 1L;
/**
* Redirects to the specified {@code interceptPage}.
*
* @param interceptPage
*/
public RestartResponseAtInterceptPageException(Page interceptPage)
{
super(new RenderPageRequestHandler(new PageProvider(interceptPage),
RedirectPolicy.AUTO_REDIRECT));
InterceptData.set();
}
/**
* Redirects to the specified intercept page, this will result in a bookmarkable redirect.
*
* @param interceptPageClass
*/
public RestartResponseAtInterceptPageException(Class<? extends Page> interceptPageClass)
{
this(interceptPageClass, null);
}
/**
* Redirects to the specified intercept page, this will result in a bookmarkable redirect.
*
* @param interceptPageClass
* @param parameters
*/
public RestartResponseAtInterceptPageException(Class<? extends Page> interceptPageClass,
PageParameters parameters)
{
super(new RenderPageRequestHandler(new PageProvider(interceptPageClass, parameters),
RedirectPolicy.ALWAYS_REDIRECT));
InterceptData.set();
}
/**
* INTERNAL CLASS, DO NOT USE
*
* @author igor.vaynberg
*/
static class InterceptData implements Serializable
{
private static final long serialVersionUID = 1L;
private Url originalUrl;
private Map<String, List<StringValue>> postParameters;
private boolean continueOk;
public Url getOriginalUrl()
{
return originalUrl;
}
public Map<String, List<StringValue>> getPostParameters()
{
return postParameters;
}
public static void set()
{
Session session = Session.get();
session.bind();
InterceptData data = new InterceptData();
Request request = RequestCycle.get().getRequest();
data.originalUrl = request.getOriginalUrl();
Iterator<QueryParameter> itor = data.originalUrl.getQueryParameters().iterator();
while (itor.hasNext())
{
QueryParameter parameter = itor.next();
String parameterName = parameter.getName();
if (WebRequest.PARAM_AJAX.equals(parameterName) ||
WebRequest.PARAM_AJAX_BASE_URL.equals(parameterName) ||
WebRequest.PARAM_AJAX_REQUEST_ANTI_CACHE.equals(parameterName))
{
itor.remove();
}
}
data.postParameters = new HashMap<String, List<StringValue>>();
for (String s : request.getPostParameters().getParameterNames())
{
if (WebRequest.PARAM_AJAX.equals(s) || WebRequest.PARAM_AJAX_BASE_URL.equals(s) ||
WebRequest.PARAM_AJAX_REQUEST_ANTI_CACHE.equals(s))
{
continue;
}
data.postParameters.put(s, new ArrayList<StringValue>(request.getPostParameters()
.getParameterValues(s)));
}
data.continueOk = false;
session.setMetaData(key, data);
}
public static InterceptData get()
{
if (Session.exists())
{
return Session.get().getMetaData(key);
}
else
{
return null;
}
}
public static void clear()
{
if (Session.exists())
{
Session.get().setMetaData(key, null);
}
}
private static MetaDataKey<InterceptData> key = new MetaDataKey<InterceptData>()
{
private static final long serialVersionUID = 1L;
};
}
static void continueToOriginalDestination()
{
InterceptData data = InterceptData.get();
if (data != null)
{
data.continueOk = true;
String url = RequestCycle.get().getUrlRenderer().renderUrl(data.originalUrl);
RequestCycle.get().replaceAllRequestHandlers(new RedirectRequestHandler(url));
}
}
static IRequestMapper MAPPER = new IRequestMapper()
{
@Override
public int getCompatibilityScore(Request request)
{
return matchedData(request) != null ? Integer.MAX_VALUE : 0;
}
@Override
public Url mapHandler(IRequestHandler requestHandler)
{
return null;
}
@Override
public IRequestHandler mapRequest(Request request)
{
InterceptData data = matchedData(request);
if (data != null)
{
if (data.postParameters.isEmpty() == false &&
request.getPostParameters() instanceof IWritableRequestParameters)
{
IWritableRequestParameters parameters = (IWritableRequestParameters)request.getPostParameters();
parameters.reset();
for (String s : data.postParameters.keySet())
{
parameters.setParameterValues(s, data.postParameters.get(s));
}
}
InterceptData.clear();
}
return null;
}
private InterceptData matchedData(Request request)
{
InterceptData data = InterceptData.get();
if (data != null && data.originalUrl.equals(request.getOriginalUrl()))
{
return data;
}
return null;
}
};
}