Method doGet

java/org/apache/catalina/servlets/CGIServlet.java:554–580

Provides CGI Gateway service. @param req HttpServletRequest passed in by servlet container @param res HttpServletResponse passed in by servlet container @exception ServletException if a servlet-specific exception occurs @exception IOException if a read/write exception occurs

(HttpServletRequest req, HttpServletResponse res)

     * @exception IOException      if a read/write exception occurs
     */
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

        CGIEnvironment cgiEnv = new CGIEnvironment(req, getServletContext());

        if (cgiEnv.isValid()) {
            CGIRunner cgi = new CGIRunner(cgiEnv.getCommand(), cgiEnv.getEnvironment(), cgiEnv.getWorkingDirectory(),
                    cgiEnv.getParameters());

            if (Method.POST.equals(req.getMethod())) {
                cgi.setInput(req.getInputStream());
            }
            cgi.setResponse(res);
            cgi.run();
        } else {
            res.sendError(404);
        }

        if (log.isTraceEnabled()) {
            String[] cgiEnvLines = cgiEnv.toString().split(System.lineSeparator());
            for (String cgiEnvLine : cgiEnvLines) {
                log.trace(cgiEnvLine);
            }

            printServletEnvironment(req);
        }
    }


    @Override