com.enonic.cms.web.CmsDispatcherServlet.java Source code

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Here is the source code for com.enonic.cms.web.CmsDispatcherServlet.java

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/*
 * Copyright 2000-2013 Enonic AS
 * http://www.enonic.com/license
 */
package com.enonic.cms.web;

import java.io.IOException;
import java.util.Arrays;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;
import org.springframework.http.HttpMethod;
import org.springframework.web.servlet.DispatcherServlet;

import com.enonic.cms.core.servlet.ServletRequestAccessor;
import com.enonic.cms.server.service.servlet.OriginalUrlResolver;

/**
 * This class implements a modification of the dispatcher servlet.
 */
public final class CmsDispatcherServlet extends DispatcherServlet {
    private final static List<HttpMethod> ALLOWED_HTTP_METHODS = Arrays.asList(HttpMethod.GET, HttpMethod.POST,
            HttpMethod.HEAD, HttpMethod.OPTIONS);

    public CmsDispatcherServlet() {
        setContextConfigLocation("");
    }

    @Override
    protected void doOptions(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setHeader("Allow", StringUtils.join(ALLOWED_HTTP_METHODS, ","));
        response.setStatus(HttpServletResponse.SC_OK);
    }

    protected void doService(HttpServletRequest req, HttpServletResponse res) throws Exception {
        final HttpMethod requestMethod = HttpMethod.valueOf(req.getMethod());

        if (!ALLOWED_HTTP_METHODS.contains(requestMethod)) {
            res.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
            return;
        }

        ServletRequestAccessor.setRequest(req);
        OriginalUrlResolver.resolveOriginalUrl(req);

        super.doService(req, res);
    }
}