<%--
  ~ 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.
  --%>

<%@ page session="false" %>
<%@ page import="org.apache.axis2.Constants" %>
<%@ page import="org.apache.axis2.context.ConfigurationContext" %>
<%@ page import="org.apache.axis2.description.Parameter" %>
<%@ page import="org.apache.axis2.kernel.TransportListener" %>
<%@ page import="org.apache.axis2.transport.http.AxisServlet" %>
<%!
    private String frontendHostUrl;
    private String hostname;

    public void jspInit() {
        ServletContext context = this.getServletConfig().getServletContext();
        ConfigurationContext configctx = (ConfigurationContext) context.getAttribute(AxisServlet.CONFIGURATION_CONTEXT);
        if (configctx != null) {
            Parameter parameter = configctx.getAxisConfiguration().getParameter(Constants.HTTP_FRONTEND_HOST_URL);
            if (parameter != null) {
                frontendHostUrl = (String) parameter.getValue();
            }
            Parameter hostnameParam = configctx.getAxisConfiguration().getParameter(TransportListener.HOST_ADDRESS);
            if (hostnameParam != null) {
                hostname = (String) hostnameParam.getValue();
            }
        }
    }

    public String calculateHttpBase(HttpServletRequest aRequest) {
        StringBuffer stringBuffer = new StringBuffer();
        if (frontendHostUrl != null) {
            stringBuffer.append(frontendHostUrl);
        } else {
            String scheme = aRequest.getScheme();
            stringBuffer.append(scheme);
            stringBuffer.append("://");
            stringBuffer.append(hostname != null ? hostname : aRequest.getServerName());
            if (("http".equalsIgnoreCase(scheme) && aRequest.getServerPort() != 80) || "https".equalsIgnoreCase(scheme) && aRequest.getServerPort() != 443) {
                stringBuffer.append(":");
                stringBuffer.append(aRequest.getServerPort());
            }
            // I think i saw web containers return null for root web context
            if (aRequest.getContextPath() != null) {
                stringBuffer.append(aRequest.getContextPath());
            }
        }
        // append / char if needed
        if (stringBuffer.charAt(stringBuffer.length() - 1) != '/') {
            stringBuffer.append("/");
        }
        String curentUrl = stringBuffer.toString();
        aRequest.setAttribute("frontendHostUrl", curentUrl);
        return curentUrl;
    }
%>
<base href="<%= calculateHttpBase(request)%>">
