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/*
* 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.struts2.views.util;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.StringEscapeUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.struts2.StrutsConstants;
import org.apache.struts2.util.URLDecoderUtil;
import com.opensymphony.xwork2.inject.Inject;
/**
* Default implementation of UrlHelper
*/
public class DefaultUrlHelper implements UrlHelper {
private static final Logger LOG = LogManager.getLogger(DefaultUrlHelper.class);
public static final String HTTP_PROTOCOL = "http";
public static final String HTTPS_PROTOCOL = "https";
private String encoding = "UTF-8";
private int httpPort = DEFAULT_HTTP_PORT;
private int httpsPort = DEFAULT_HTTPS_PORT;
@Inject(StrutsConstants.STRUTS_I18N_ENCODING)
public void setEncoding(String encoding) {
if (StringUtils.isNotEmpty(encoding)) {
this.encoding = encoding;
}
}
@Inject(StrutsConstants.STRUTS_URL_HTTP_PORT)
public void setHttpPort(String httpPort) {
this.httpPort = Integer.parseInt(httpPort);
}
@Inject(StrutsConstants.STRUTS_URL_HTTPS_PORT)
public void setHttpsPort(String httpsPort) {
this.httpsPort = Integer.parseInt(httpsPort);
}
public String buildUrl(String action, HttpServletRequest request, HttpServletResponse response, Map params) {
return buildUrl(action, request, response, params, null, true, true);
}
public String buildUrl(String action, HttpServletRequest request, HttpServletResponse response, Map params, String scheme,
boolean includeContext, boolean encodeResult) {
return buildUrl(action, request, response, params, scheme, includeContext, encodeResult, false);
}
public String buildUrl(String action, HttpServletRequest request, HttpServletResponse response, Map params, String scheme,
boolean includeContext, boolean encodeResult, boolean forceAddSchemeHostAndPort) {
return buildUrl(action, request, response, params, scheme, includeContext, encodeResult, forceAddSchemeHostAndPort, true);
}
public String buildUrl(String action, HttpServletRequest request, HttpServletResponse response, Map params, String urlScheme,
boolean includeContext, boolean encodeResult, boolean forceAddSchemeHostAndPort, boolean escapeAmp) {
StringBuilder link = new StringBuilder();
boolean changedScheme = false;
String scheme = null;
if (isValidScheme(urlScheme)) {
scheme = urlScheme;
}
// only append scheme if it is different to the current scheme *OR*
// if we explicity want it to be appended by having forceAddSchemeHostAndPort = true
if (forceAddSchemeHostAndPort) {
String reqScheme = request.getScheme();
changedScheme = true;
link.append(scheme != null ? scheme : reqScheme);
link.append("://");
link.append(request.getServerName());
if (scheme != null) {
// If switching schemes, use the configured port for the particular scheme.
if (!scheme.equals(reqScheme)) {
appendPort(link, scheme, HTTP_PROTOCOL.equals(scheme) ? httpPort : httpsPort);
// Else use the port from the current request.
} else {
appendPort(link, scheme, request.getServerPort());
}
} else {
appendPort(link, reqScheme, request.getServerPort());
}
} else if ((scheme != null) && !scheme.equals(request.getScheme())) {
changedScheme = true;
link.append(scheme);
link.append("://");
link.append(request.getServerName());
appendPort(link, scheme, HTTP_PROTOCOL.equals(scheme) ? httpPort : httpsPort);
}
if (action != null) {
// Check if context path needs to be added
// Add path to absolute links
if (action.startsWith("/") && includeContext) {
String contextPath = request.getContextPath();
if (!contextPath.equals("/")) {
link.append(contextPath);
}
} else if (changedScheme) {
// (Applicable to Servlet 2.4 containers)
// If the request was forwarded, the attribute below will be set with the original URL
String uri = (String) request.getAttribute("javax.servlet.forward.request_uri");
// If the attribute wasn't found, default to the value in the request object
if (uri == null) {
uri = request.getRequestURI();
}
link.append(uri.substring(0, uri.lastIndexOf('/') + 1));
}
// Add page
link.append(action);
} else {
// Go to "same page"
String requestURI = (String) request.getAttribute("struts.request_uri");
// (Applicable to Servlet 2.4 containers)
// If the request was forwarded, the attribute below will be set with the original URL
if (requestURI == null) {
requestURI = (String) request.getAttribute("javax.servlet.forward.request_uri");
}
// If neither request attributes were found, default to the value in the request object
if (requestURI == null) {
requestURI = request.getRequestURI();
}
link.append(requestURI);
}
//if the action was not explicitly set grab the params from the request
if (escapeAmp) {
buildParametersString(params, link, AMP, true);
} else {
buildParametersString(params, link, "&", true);
}
String result = link.toString();
if (StringUtils.containsIgnoreCase(result, "