Examples with ServletResponseWrapper javax.servlet.ServletResponseWrapper used on opensource projects

Example 1 with ServletResponseWrapper

use of javax.servlet.ServletResponseWrapper in project jetty.project by eclipse.

the class Dump method doGet.

/* ------------------------------------------------------------ */
@Override
public void doGet(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException {
    if (request.getRemoteUser() == null) {
        try {
            request.login("user", "password");
        } catch (ServletException se) {
            getServletContext().log(se.toString());
        }
    }
    // Handle a dump of data
    final String data = request.getParameter("data");
    final String chars = request.getParameter("chars");
    final String block = request.getParameter("block");
    final String dribble = request.getParameter("dribble");
    final boolean flush = request.getParameter("flush") != null ? Boolean.parseBoolean(request.getParameter("flush")) : false;
    if (request.getPathInfo() != null && request.getPathInfo().toLowerCase(Locale.ENGLISH).indexOf("script") != -1) {
        response.sendRedirect(response.encodeRedirectURL(getServletContext().getContextPath() + "/dump/info"));
        return;
    }
    request.setCharacterEncoding("UTF-8");
    if (request.getParameter("busy") != null) {
        long end = System.currentTimeMillis() + Long.parseLong(request.getParameter("busy"));
        while (System.currentTimeMillis() < end) {
        }
    }
    if (request.getParameter("empty") != null) {
        response.setStatus(200);
        response.flushBuffer();
        return;
    }
    if (request.getParameter("sleep") != null) {
        try {
            long s = Long.parseLong(request.getParameter("sleep"));
            if (request.getHeader("Expect") != null && request.getHeader("Expect").indexOf("102") >= 0) {
                Thread.sleep(s / 2);
                response.sendError(102);
                Thread.sleep(s / 2);
            } else
                Thread.sleep(s);
        } catch (InterruptedException e) {
            return;
        } catch (Exception e) {
            throw new ServletException(e);
        }
    }
    if (request.getParameter("startAsync") != null && request.getAttribute("ASYNC") != Boolean.TRUE) {
        request.setAttribute("ASYNC", Boolean.TRUE);
        try {
            final AsyncContext async = request.startAsync(request, response);
            async.setTimeout(Long.parseLong(request.getParameter("startAsync")));
            async.addListener(new AsyncListener() {

                @Override
                public void onTimeout(AsyncEvent event) throws IOException {
                    response.addHeader("Dump", "onTimeout");
                    try {
                        if (!dump(response, data, chars, block, dribble, flush)) {
                            response.setContentType("text/plain");
                            response.getOutputStream().println("EXPIRED");
                        }
                        async.complete();
                    } catch (IOException e) {
                        getServletContext().log("", e);
                    }
                }

                @Override
                public void onStartAsync(AsyncEvent event) throws IOException {
                    response.addHeader("Dump", "onStartAsync");
                }

                @Override
                public void onError(AsyncEvent event) throws IOException {
                    response.addHeader("Dump", "onError");
                }

                @Override
                public void onComplete(AsyncEvent event) throws IOException {
                    response.addHeader("Dump", "onComplete");
                }
            });
            if (request.getParameter("dispatch") != null) {
                request.setAttribute("RESUME", Boolean.TRUE);
                final long resume = Long.parseLong(request.getParameter("dispatch"));
                _timer.schedule(new TimerTask() {

                    @Override
                    public void run() {
                        async.dispatch();
                    }
                }, resume);
            }
            if (request.getParameter("complete") != null) {
                final long complete = Long.parseLong(request.getParameter("complete"));
                _timer.schedule(new TimerTask() {

                    @Override
                    public void run() {
                        try {
                            response.setContentType("text/html");
                            response.getOutputStream().println("<h1>COMPLETED</h1>");
                            async.complete();
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }
                }, complete);
            }
            return;
        } catch (Exception e) {
            throw new ServletException(e);
        }
    }
    request.setAttribute("Dump", this);
    getServletContext().setAttribute("Dump", this);
    // getServletContext().log("dump "+request.getRequestURI());
    // Force a content length response
    String length = request.getParameter("length");
    if (length != null && length.length() > 0) {
        response.setContentLength(Integer.parseInt(length));
    }
    // Handle a dump of data
    if (dump(response, data, chars, block, dribble, flush))
        return;
    // handle an exception
    String info = request.getPathInfo();
    if (info != null && info.endsWith("Exception")) {
        try {
            throw (Throwable) Thread.currentThread().getContextClassLoader().loadClass(info.substring(1)).newInstance();
        } catch (Throwable th) {
            throw new ServletException(th);
        }
    }
    // test a reset
    String reset = request.getParameter("reset");
    if (reset != null && reset.length() > 0) {
        response.getOutputStream().println("THIS SHOULD NOT BE SEEN!");
        response.setHeader("SHOULD_NOT", "BE SEEN");
        response.reset();
    }
    // handle an redirect
    String redirect = request.getParameter("redirect");
    if (redirect != null && redirect.length() > 0) {
        response.getOutputStream().println("THIS SHOULD NOT BE SEEN!");
        response.sendRedirect(response.encodeRedirectURL(redirect));
        try {
            response.getOutputStream().println("THIS SHOULD NOT BE SEEN!");
        } catch (IOException e) {
        // ignored as stream is closed.
        }
        return;
    }
    // handle an error
    String error = request.getParameter("error");
    if (error != null && error.length() > 0 && request.getAttribute(RequestDispatcher.ERROR_STATUS_CODE) == null) {
        response.getOutputStream().println("THIS SHOULD NOT BE SEEN!");
        response.sendError(Integer.parseInt(error));
        try {
            response.getOutputStream().println("THIS SHOULD NOT BE SEEN!");
        } catch (IllegalStateException e) {
            try {
                response.getWriter().println("NOR THIS!!");
            } catch (IOException e2) {
            }
        } catch (IOException e) {
        }
        return;
    }
    // Handle a extra headers
    String headers = request.getParameter("headers");
    if (headers != null && headers.length() > 0) {
        long h = Long.parseLong(headers);
        for (int i = 0; i < h; i++) response.addHeader("Header" + i, "Value" + i);
    }
    String buffer = request.getParameter("buffer");
    if (buffer != null && buffer.length() > 0)
        response.setBufferSize(Integer.parseInt(buffer));
    String charset = request.getParameter("charset");
    if (charset == null)
        charset = "UTF-8";
    response.setCharacterEncoding(charset);
    response.setContentType("text/html");
    if (info != null && info.indexOf("Locale/") >= 0) {
        try {
            String locale_name = info.substring(info.indexOf("Locale/") + 7);
            Field f = java.util.Locale.class.getField(locale_name);
            response.setLocale((Locale) f.get(null));
        } catch (Exception e) {
            e.printStackTrace();
            response.setLocale(Locale.getDefault());
        }
    }
    String cn = request.getParameter("cookie");
    String cv = request.getParameter("cookiev");
    if (cn != null && cv != null) {
        Cookie cookie = new Cookie(cn, cv);
        if (request.getParameter("version") != null)
            cookie.setVersion(Integer.parseInt(request.getParameter("version")));
        cookie.setComment("Cookie from dump servlet");
        response.addCookie(cookie);
    }
    String pi = request.getPathInfo();
    if (pi != null && pi.startsWith("/ex")) {
        OutputStream out = response.getOutputStream();
        out.write("</H1>This text should be reset</H1>".getBytes());
        if ("/ex0".equals(pi))
            throw new ServletException("test ex0", new Throwable());
        else if ("/ex1".equals(pi))
            throw new IOException("test ex1");
        else if ("/ex2".equals(pi))
            throw new UnavailableException("test ex2");
        else if (pi.startsWith("/ex3/"))
            throw new UnavailableException("test ex3", Integer.parseInt(pi.substring(5)));
        throw new RuntimeException("test");
    }
    if ("true".equals(request.getParameter("close")))
        response.setHeader("Connection", "close");
    String buffered = request.getParameter("buffered");
    PrintWriter pout = null;
    try {
        pout = response.getWriter();
    } catch (IllegalStateException e) {
        pout = new PrintWriter(new OutputStreamWriter(response.getOutputStream(), charset));
    }
    if (buffered != null)
        pout = new PrintWriter(new BufferedWriter(pout, Integer.parseInt(buffered)));
    try {
        pout.write("<html>\n<body>\n");
        pout.write("<h1>Dump Servlet</h1>\n");
        pout.write("<table width=\"95%\">");
        pout.write("<tr>\n");
        pout.write("<th align=\"right\">getContentLength:&nbsp;</th>");
        pout.write("<td>" + Integer.toString(request.getContentLength()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getContentType:&nbsp;</th>");
        pout.write("<td>" + notag(request.getContentType()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getContextPath:&nbsp;</th>");
        pout.write("<td>" + request.getContextPath() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getDispatcherType:&nbsp;</th>");
        pout.write("<td>" + request.getDispatcherType() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getLocale:&nbsp;</th>");
        pout.write("<td>" + request.getLocale() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getLocalName:&nbsp;</th>");
        pout.write("<td>" + request.getLocalName() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getLocalAddr:&nbsp;</th>");
        pout.write("<td>" + request.getLocalAddr() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getLocalPort:&nbsp;</th>");
        pout.write("<td>" + Integer.toString(request.getLocalPort()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getMethod:&nbsp;</th>");
        pout.write("<td>" + notag(request.getMethod()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getPathInfo:&nbsp;</th>");
        pout.write("<td>" + notag(request.getPathInfo()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getPathTranslated:&nbsp;</th>");
        pout.write("<td>" + notag(request.getPathTranslated()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getProtocol:&nbsp;</th>");
        pout.write("<td>" + request.getProtocol() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getQueryString:&nbsp;</th>");
        pout.write("<td>" + notag(request.getQueryString()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getRemoteAddr:&nbsp;</th>");
        pout.write("<td>" + request.getRemoteAddr() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getRemoteHost:&nbsp;</th>");
        pout.write("<td>" + request.getRemoteHost() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getRemotePort:&nbsp;</th>");
        pout.write("<td>" + request.getRemotePort() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getRemoteUser:&nbsp;</th>");
        pout.write("<td>" + request.getRemoteUser() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getRequestedSessionId:&nbsp;</th>");
        pout.write("<td>" + request.getRequestedSessionId() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getRequestURI:&nbsp;</th>");
        pout.write("<td>" + notag(request.getRequestURI()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getRequestURL:&nbsp;</th>");
        pout.write("<td>" + notag(request.getRequestURL().toString()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getScheme:&nbsp;</th>");
        pout.write("<td>" + request.getScheme() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getServerName:&nbsp;</th>");
        pout.write("<td>" + notag(request.getServerName()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getServletPath:&nbsp;</th>");
        pout.write("<td>" + notag(request.getServletPath()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getServerPort:&nbsp;</th>");
        pout.write("<td>" + Integer.toString(request.getServerPort()) + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">getUserPrincipal:&nbsp;</th>");
        pout.write("<td>" + request.getUserPrincipal() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">isAsyncStarted():&nbsp;</th>");
        pout.write("<td>" + request.isAsyncStarted() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">isAsyncSupported():&nbsp;</th>");
        pout.write("<td>" + request.isAsyncSupported() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">isSecure():&nbsp;</th>");
        pout.write("<td>" + request.isSecure() + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">isUserInRole(admin):&nbsp;</th>");
        pout.write("<td>" + request.isUserInRole("admin") + "</td>");
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"right\">encodeRedirectURL(/foo?bar):&nbsp;</th>");
        pout.write("<td>" + response.encodeRedirectURL("/foo?bar") + "</td>");
        Enumeration<Locale> locales = request.getLocales();
        while (locales.hasMoreElements()) {
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">getLocales:&nbsp;</th>");
            pout.write("<td>" + locales.nextElement() + "</td>");
        }
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"left\" colspan=\"2\"><big><br/>Other HTTP Headers:</big></th>");
        Enumeration<String> h = request.getHeaderNames();
        String name;
        while (h.hasMoreElements()) {
            name = (String) h.nextElement();
            Enumeration<String> h2 = request.getHeaders(name);
            while (h2.hasMoreElements()) {
                String hv = (String) h2.nextElement();
                pout.write("</tr><tr>\n");
                pout.write("<th align=\"right\">" + notag(name) + ":&nbsp;</th>");
                pout.write("<td>" + notag(hv) + "</td>");
            }
        }
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"left\" colspan=\"2\"><big><br/>Request Parameters:</big></th>");
        h = request.getParameterNames();
        while (h.hasMoreElements()) {
            name = (String) h.nextElement();
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">" + notag(name) + ":&nbsp;</th>");
            pout.write("<td>" + notag(request.getParameter(name)) + "</td>");
            String[] values = request.getParameterValues(name);
            if (values == null) {
                pout.write("</tr><tr>\n");
                pout.write("<th align=\"right\">" + notag(name) + " Values:&nbsp;</th>");
                pout.write("<td>" + "NULL!" + "</td>");
            } else if (values.length > 1) {
                for (int i = 0; i < values.length; i++) {
                    pout.write("</tr><tr>\n");
                    pout.write("<th align=\"right\">" + notag(name) + "[" + i + "]:&nbsp;</th>");
                    pout.write("<td>" + notag(values[i]) + "</td>");
                }
            }
        }
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"left\" colspan=\"2\"><big><br/>Cookies:</big></th>");
        Cookie[] cookies = request.getCookies();
        for (int i = 0; cookies != null && i < cookies.length; i++) {
            Cookie cookie = cookies[i];
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">" + notag(cookie.getName()) + ":&nbsp;</th>");
            pout.write("<td>" + notag(cookie.getValue()) + "</td>");
        }
        String content_type = request.getContentType();
        if (content_type != null && !content_type.startsWith("application/x-www-form-urlencoded") && !content_type.startsWith("multipart/form-data")) {
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"left\" valign=\"top\" colspan=\"2\"><big><br/>Content:</big></th>");
            pout.write("</tr><tr>\n");
            pout.write("<td><pre>");
            char[] content = new char[4096];
            int len;
            try {
                Reader in = request.getReader();
                while ((len = in.read(content)) >= 0) pout.write(notag(new String(content, 0, len)));
            } catch (IOException e) {
                pout.write(e.toString());
            }
            pout.write("</pre></td>");
        }
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"left\" colspan=\"2\"><big><br/>Request Attributes:</big></th>");
        Enumeration<String> a = request.getAttributeNames();
        while (a.hasMoreElements()) {
            name = (String) a.nextElement();
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\" valign=\"top\">" + name.replace(".", " .") + ":&nbsp;</th>");
            Object value = request.getAttribute(name);
            if (value instanceof File) {
                File file = (File) value;
                pout.write("<td>" + "<pre>" + file.getName() + " (" + file.length() + " " + new Date(file.lastModified()) + ")</pre>" + "</td>");
            } else
                pout.write("<td>" + "<pre>" + toString(request.getAttribute(name)) + "</pre>" + "</td>");
        }
        request.setAttribute("org.eclipse.jetty.servlet.MultiPartFilter.files", null);
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"left\" colspan=\"2\"><big><br/>Servlet InitParameters:</big></th>");
        a = getInitParameterNames();
        while (a.hasMoreElements()) {
            name = (String) a.nextElement();
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">" + name + ":&nbsp;</th>");
            pout.write("<td>" + toString(getInitParameter(name)) + "</td>");
        }
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"left\" colspan=\"2\"><big><br/>Context InitParameters:</big></th>");
        a = getServletContext().getInitParameterNames();
        while (a.hasMoreElements()) {
            name = (String) a.nextElement();
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\" valign=\"top\">" + name.replace(".", " .") + ":&nbsp;</th>");
            pout.write("<td>" + toString(getServletContext().getInitParameter(name)) + "</td>");
        }
        pout.write("</tr><tr>\n");
        pout.write("<th align=\"left\" colspan=\"2\"><big><br/>Context Attributes:</big></th>");
        a = getServletContext().getAttributeNames();
        while (a.hasMoreElements()) {
            name = (String) a.nextElement();
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\" valign=\"top\">" + name.replace(".", " .") + ":&nbsp;</th>");
            pout.write("<td>" + "<pre>" + toString(getServletContext().getAttribute(name)) + "</pre>" + "</td>");
        }
        String res = request.getParameter("resource");
        if (res != null && res.length() > 0) {
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"left\" colspan=\"2\"><big><br/>Get Resource: \"" + res + "\"</big></th>");
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">getServletContext().getResource(...):&nbsp;</th>");
            try {
                pout.write("<td>" + getServletContext().getResource(res) + "</td>");
            } catch (Exception e) {
                pout.write("<td>" + "" + e + "</td>");
            }
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">getServletContext().getResourcePaths(...):&nbsp;</th>");
            try {
                pout.write("<td>" + getServletContext().getResourcePaths(res) + "</td>");
            } catch (Exception e) {
                pout.write("<td>" + "" + e + "</td>");
            }
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">getServletContext().getRealPath(...):&nbsp;</th>");
            try {
                pout.write("<td>" + getServletContext().getRealPath(res) + "</td>");
            } catch (Exception e) {
                pout.write("<td>" + "" + e + "</td>");
            }
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">getServletContext().getContext(...):&nbsp;</th>");
            ServletContext context = getServletContext().getContext(res);
            pout.write("<td>" + context + "</td>");
            if (context != null) {
                pout.write("</tr><tr>\n");
                pout.write("<th align=\"right\">getServletContext().getContext(...).getResource(...):&nbsp;</th>");
                try {
                    pout.write("<td>" + context.getResource(res) + "</td>");
                } catch (Exception e) {
                    pout.write("<td>" + "" + e + "</td>");
                }
                pout.write("</tr><tr>\n");
                pout.write("<th align=\"right\">getServletContext().getContext(...).getResourcePaths(...):&nbsp;</th>");
                try {
                    pout.write("<td>" + context.getResourcePaths(res) + "</td>");
                } catch (Exception e) {
                    pout.write("<td>" + "" + e + "</td>");
                }
                String cp = context.getContextPath();
                if (cp == null || "/".equals(cp))
                    cp = "";
                pout.write("</tr><tr>\n");
                pout.write("<th align=\"right\">getServletContext().getContext(...).getRequestDispatcher(...):&nbsp;</th>");
                pout.write("<td>" + context.getRequestDispatcher(res.substring(cp.length())) + "</td>");
                pout.write("</tr><tr>\n");
                pout.write("<th align=\"right\">getServletContext().getContext(...).getRealPath(...):&nbsp;</th>");
                pout.write("<td>" + context.getRealPath(res.substring(cp.length())) + "</td>");
            }
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">this.getClass().getResource(...):&nbsp;</th>");
            pout.write("<td>" + this.getClass().getResource(res) + "</td>");
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">this.getClass().getClassLoader().getResource(...):&nbsp;</th>");
            pout.write("<td>" + this.getClass().getClassLoader().getResource(res) + "</td>");
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">Thread.currentThread().getContextClassLoader().getResource(...):&nbsp;</th>");
            pout.write("<td>" + Thread.currentThread().getContextClassLoader().getResource(res) + "</td>");
            pout.write("</tr><tr>\n");
            pout.write("<th align=\"right\">Thread.currentThread().getContextClassLoader().getResources(...):&nbsp;</th>");
            Enumeration<URL> urls = Thread.currentThread().getContextClassLoader().getResources(res);
            if (urls == null)
                pout.write("<td>null</td>");
            else
                pout.write("<td>" + Collections.list(urls) + "</td>");
        }
        pout.write("</tr></table>\n");
        /* ------------------------------------------------------------ */
        pout.write("<h2>Request Wrappers</h2>\n");
        ServletRequest rw = request;
        int w = 0;
        while (rw != null) {
            pout.write((w++) + ": " + rw.getClass().getName() + "<br/>");
            if (rw instanceof HttpServletRequestWrapper)
                rw = ((HttpServletRequestWrapper) rw).getRequest();
            else if (rw instanceof ServletRequestWrapper)
                rw = ((ServletRequestWrapper) rw).getRequest();
            else
                rw = null;
        }
        /* ------------------------------------------------------------ */
        pout.write("<h2>Response Wrappers</h2>\n");
        ServletResponse rsw = response;
        w = 0;
        while (rsw != null) {
            pout.write((w++) + ": " + rsw.getClass().getName() + "<br/>");
            if (rsw instanceof HttpServletResponseWrapper)
                rsw = ((HttpServletResponseWrapper) rsw).getResponse();
            else if (rsw instanceof ServletResponseWrapper)
                rsw = ((ServletResponseWrapper) rsw).getResponse();
            else
                rsw = null;
        }
        pout.write("<br/>");
        pout.write("<h2>International Characters (UTF-8)</h2>");
        pout.write("LATIN LETTER SMALL CAPITAL AE<br/>\n");
        pout.write("Directly uni encoded(\\u1d01): ᴁ<br/>");
        pout.write("HTML reference (&amp;AElig;): &AElig;<br/>");
        pout.write("Decimal (&amp;#7425;): &#7425;<br/>");
        pout.write("Javascript unicode (\\u1d01) : <script language='javascript'>document.write(\"ᴁ\");</script><br/>");
        pout.write("<br/>");
        pout.write("<h2>Form to generate GET content</h2>");
        pout.write("<form method=\"GET\" action=\"" + response.encodeURL(getURI(request)) + "\">");
        pout.write("TextField: <input type=\"text\" name=\"TextField\" value=\"value\"/><br/>\n");
        pout.write("<input type=\"submit\" name=\"Action\" value=\"Submit\">");
        pout.write("</form>");
        pout.write("<br/>");
        pout.write("<h2>Form to generate POST content</h2>");
        pout.write("<form method=\"POST\" accept-charset=\"utf-8\" action=\"" + response.encodeURL(getURI(request)) + "\">");
        pout.write("TextField: <input type=\"text\" name=\"TextField\" value=\"value\"/><br/>\n");
        pout.write("Select: <select multiple name=\"Select\">\n");
        pout.write("<option>ValueA</option>");
        pout.write("<option>ValueB1,ValueB2</option>");
        pout.write("<option>ValueC</option>");
        pout.write("</select><br/>");
        pout.write("<input type=\"submit\" name=\"Action\" value=\"Submit\"><br/>");
        pout.write("</form>");
        pout.write("<br/>");
        pout.write("<h2>Form to generate UPLOAD content</h2>");
        pout.write("<form method=\"POST\" enctype=\"multipart/form-data\" accept-charset=\"utf-8\" action=\"" + response.encodeURL(getURI(request)) + (request.getQueryString() == null ? "" : ("?" + request.getQueryString())) + "\">");
        pout.write("TextField: <input type=\"text\" name=\"TextField\" value=\"comment\"/><br/>\n");
        pout.write("File 1: <input type=\"file\" name=\"file1\" /><br/>\n");
        pout.write("File 2: <input type=\"file\" name=\"file2\" /><br/>\n");
        pout.write("<input type=\"submit\" name=\"Action\" value=\"Submit\"><br/>");
        pout.write("</form>");
        pout.write("<h2>Form to set Cookie</h2>");
        pout.write("<form method=\"POST\" action=\"" + response.encodeURL(getURI(request)) + "\">");
        pout.write("cookie: <input type=\"text\" name=\"cookie\" /><br/>\n");
        pout.write("value: <input type=\"text\" name=\"cookiev\" /><br/>\n");
        pout.write("<input type=\"submit\" name=\"Action\" value=\"setCookie\">");
        pout.write("</form>\n");
        pout.write("<h2>Form to get Resource</h2>");
        pout.write("<form method=\"POST\" action=\"" + response.encodeURL(getURI(request)) + "\">");
        pout.write("resource: <input type=\"text\" name=\"resource\" /><br/>\n");
        pout.write("<input type=\"submit\" name=\"Action\" value=\"getResource\">");
        pout.write("</form>\n");
    } catch (Exception e) {
        getServletContext().log("dump " + e);
    }
    String lines = request.getParameter("lines");
    if (lines != null) {
        char[] line = "<span>A line of characters. Blah blah blah blah.  blooble blooble</span></br>\n".toCharArray();
        for (int l = Integer.parseInt(lines); l-- > 0; ) {
            pout.write("<span>" + l + " </span>");
            pout.write(line);
        }
    }
    pout.write("</body>\n</html>\n");
    pout.close();
    if (pi != null) {
        if ("/ex4".equals(pi))
            throw new ServletException("test ex4", new Throwable());
        if ("/ex5".equals(pi))
            throw new IOException("test ex5");
        if ("/ex6".equals(pi))
            throw new UnavailableException("test ex6");
    }
}

Example 2 with ServletResponseWrapper

use of javax.servlet.ServletResponseWrapper in project sling by apache.

the class ExternalServletContextWrapperTest method testUnwrappingDoubleWrappedResponse.

@Test
public void testUnwrappingDoubleWrappedResponse() {
    final ServletResponse resp = context.mock(ServletResponse.class);
    final ServletResponseWrapper wrapper = new ServletResponseWrapper(resp);
    final ServletResponseWrapper wrapper2 = new ServletResponseWrapper(wrapper);
    ServletResponse unwrapped = ExternalServletContextWrapper.RequestDispatcherWrapper.unwrapServletResponse(wrapper2);
    assertEquals(resp, unwrapped);
}

Example 3 with ServletResponseWrapper

use of javax.servlet.ServletResponseWrapper in project OpenOLAT by OpenOLAT.

the class DefaultDispatcher method serveResource.

/**
 * Serve the specified resource, optionally including the data content.
 *
 * @param request  The servlet request we are processing
 * @param response The servlet response we are creating
 * @param content  Should the content be included?
 * @param encoding The encoding to use if it is necessary to access the
 *                 source as characters rather than as bytes
 *
 * @exception IOException if an input/output error occurs
 * @exception ServletException if a servlet-specified error occurs
 */
protected void serveResource(HttpServletRequest request, HttpServletResponse response, boolean content, String encoding) throws IOException, ServletException {
    boolean serveContent = content;
    boolean debug = log.isDebug();
    // Identify the requested resource path
    String path = getRelativePath(request);
    if (debug) {
        if (serveContent)
            log.debug("DefaultServlet.serveResource:  Serving resource '" + path + "' headers and data");
        else
            log.debug("DefaultServlet.serveResource:  Serving resource '" + path + "' headers only");
    }
    WebResourceRoot resources = getResources(request);
    WebResource resource = resources.getResource(path);
    if (!resource.exists()) {
        // Check if we're included so we can return the appropriate
        // missing resource name in the error
        String requestUri = (String) request.getAttribute(RequestDispatcher.INCLUDE_REQUEST_URI);
        if (requestUri == null) {
            requestUri = request.getRequestURI();
        } else {
            // SRV.9.3 says we must throw a FNFE
            throw new FileNotFoundException("defaultServlet.missingResource");
        }
        response.sendError(HttpServletResponse.SC_NOT_FOUND, requestUri);
        return;
    }
    // ends with "/" or "\", return NOT FOUND
    if (resource.isFile() && path.endsWith("/") || path.endsWith("\\")) {
        // Check if we're included so we can return the appropriate
        // missing resource name in the error
        String requestUri = (String) request.getAttribute(RequestDispatcher.INCLUDE_REQUEST_URI);
        if (requestUri == null) {
            requestUri = request.getRequestURI();
        }
        response.sendError(HttpServletResponse.SC_NOT_FOUND, requestUri);
        return;
    }
    boolean isError = response.getStatus() >= HttpServletResponse.SC_BAD_REQUEST;
    boolean included = false;
    // satisfied.
    if (resource.isFile()) {
        // Checking If headers
        included = (request.getAttribute(RequestDispatcher.INCLUDE_CONTEXT_PATH) != null);
        if (!included && !isError && !checkIfHeaders(request, response, resource)) {
            return;
        }
    }
    // Find content type.
    String contentType = resource.getMimeType();
    if (contentType == null) {
        contentType = request.getServletContext().getMimeType(resource.getName());
        resource.setMimeType(contentType);
    }
    // These need to reflect the original resource, not the potentially
    // gzip'd version of the resource so get them now if they are going to
    // be needed later
    String eTag = null;
    String lastModifiedHttp = null;
    if (resource.isFile() && !isError) {
        eTag = resource.getETag();
        lastModifiedHttp = resource.getLastModifiedHttp();
    }
    // Serve a gzipped version of the file if present
    boolean usingGzippedVersion = false;
    if (gzip && !included && resource.isFile() && !path.endsWith(".gz")) {
        WebResource gzipResource = resources.getResource(path + ".gz");
        if (gzipResource.exists() && gzipResource.isFile()) {
            Collection<String> varyHeaders = response.getHeaders("Vary");
            boolean addRequired = true;
            for (String varyHeader : varyHeaders) {
                if ("*".equals(varyHeader) || "accept-encoding".equalsIgnoreCase(varyHeader)) {
                    addRequired = false;
                    break;
                }
            }
            if (addRequired) {
                response.addHeader("Vary", "accept-encoding");
            }
            if (checkIfGzip(request)) {
                response.addHeader("Content-Encoding", "gzip");
                resource = gzipResource;
                usingGzippedVersion = true;
            }
        }
    }
    ArrayList<Range> ranges = null;
    long contentLength = -1L;
    if (resource.isDirectory()) {
        contentType = "text/html;charset=UTF-8";
    } else {
        if (!isError) {
            if (useAcceptRanges) {
                // Accept ranges header
                response.setHeader("Accept-Ranges", "bytes");
            }
            // Parse range specifier
            ranges = parseRange(request, response, resource);
            // ETag header
            response.setHeader("ETag", eTag);
            // Last-Modified header
            response.setHeader("Last-Modified", lastModifiedHttp);
        }
        // Get content length
        contentLength = resource.getContentLength();
        // (silent) ISE when setting the output buffer size
        if (contentLength == 0L) {
            serveContent = false;
        }
    }
    ServletOutputStream ostream = null;
    PrintWriter writer = null;
    if (serveContent) {
        // Trying to retrieve the servlet output stream
        try {
            ostream = response.getOutputStream();
        } catch (IllegalStateException e) {
            // trying to serve a text file
            if (!usingGzippedVersion && ((contentType == null) || (contentType.startsWith("text")) || (contentType.endsWith("xml")) || (contentType.contains("/javascript")))) {
                writer = response.getWriter();
                // Cannot reliably serve partial content with a Writer
                ranges = FULL;
            } else {
                throw e;
            }
        }
    }
    // Check to see if a Filter, Valve of wrapper has written some content.
    // If it has, disable range requests and setting of a content length
    // since neither can be done reliably.
    ServletResponse r = response;
    long contentWritten = 0;
    while (r instanceof ServletResponseWrapper) {
        r = ((ServletResponseWrapper) r).getResponse();
    }
    if (contentWritten > 0) {
        ranges = FULL;
    }
    if (resource.isDirectory() || isError || ((ranges == null || ranges.isEmpty()) && request.getHeader("Range") == null) || ranges == FULL) {
        // Set the appropriate output headers
        if (contentType != null) {
            if (debug)
                log.debug("DefaultServlet.serveFile:  contentType='" + contentType + "'");
            response.setContentType(contentType);
        }
        if (resource.isFile() && contentLength >= 0 && (!serveContent || ostream != null)) {
            if (debug)
                log.debug("DefaultServlet.serveFile:  contentLength=" + contentLength);
            // written to the response.
            if (contentWritten == 0) {
                response.setContentLengthLong(contentLength);
            }
        }
        InputStream renderResult = null;
        if (resource.isDirectory()) {
            if (serveContent) {
                // Serve the directory browser
                // TODO tomcat render(getPathPrefix(request), resource);
                renderResult = null;
            }
        }
        // Copy the input stream to our output stream (if requested)
        if (serveContent) {
            resource.increaseDownloadCount();
            try {
                response.setBufferSize(output);
            } catch (IllegalStateException e) {
            // Silent catch
            }
            if (ostream == null) {
                // content directly.
                if (resource.isDirectory()) {
                    // render(getPathPrefix(request), resource);
                    renderResult = null;
                } else {
                    renderResult = resource.getInputStream();
                }
                copy(resource, renderResult, writer, encoding);
            } else {
                // Output is via an InputStream
                if (resource.isDirectory()) {
                    // render(getPathPrefix(request), resource);
                    renderResult = null;
                } else {
                    renderResult = resource.getInputStream();
                }
                // the output (this method closes the stream)
                if (renderResult != null) {
                    copy(renderResult, ostream);
                }
            }
        }
    } else {
        // download counter
        resource.increaseDownloadCount();
        if ((ranges == null) || (ranges.isEmpty()))
            return;
        // Partial content response.
        response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);
        if (ranges.size() == 1) {
            Range range = ranges.get(0);
            response.addHeader("Content-Range", "bytes " + range.start + "-" + range.end + "/" + range.length);
            long length = range.end - range.start + 1;
            response.setContentLengthLong(length);
            if (contentType != null) {
                if (debug)
                    log.debug("DefaultServlet.serveFile:  contentType='" + contentType + "'");
                response.setContentType(contentType);
            }
            if (serveContent) {
                try {
                    response.setBufferSize(output);
                } catch (IllegalStateException e) {
                // Silent catch
                }
                if (ostream != null) {
                    copy(resource, ostream, range);
                } else {
                    // we should not get here
                    throw new IllegalStateException();
                }
            }
        } else {
            response.setContentType("multipart/byteranges; boundary=" + mimeSeparation);
            if (serveContent) {
                try {
                    response.setBufferSize(output);
                } catch (IllegalStateException e) {
                // Silent catch
                }
                if (ostream != null) {
                    copy(resource, ostream, ranges.iterator(), contentType);
                } else {
                    // we should not get here
                    throw new IllegalStateException();
                }
            }
        }
    }
}

Example 4 with ServletResponseWrapper

use of javax.servlet.ServletResponseWrapper in project tomcat70 by apache.

the class ApplicationDispatcher method wrapResponse.

/**
 * Create and return a response wrapper that has been inserted in the
 * appropriate spot in the response chain.
 */
private ServletResponse wrapResponse(State state) {
    // Locate the response we should insert in front of
    ServletResponse previous = null;
    ServletResponse current = state.outerResponse;
    while (current != null) {
        if (state.hresponse == null && (current instanceof HttpServletResponse)) {
            state.hresponse = (HttpServletResponse) current;
            if (// Forward only needs hresponse
            !state.including)
                return null;
        }
        if (!(current instanceof ServletResponseWrapper))
            break;
        if (current instanceof ApplicationHttpResponse)
            break;
        if (current instanceof ApplicationResponse)
            break;
        previous = current;
        current = ((ServletResponseWrapper) current).getResponse();
    }
    // Instantiate a new wrapper at this point and insert it in the chain
    ServletResponse wrapper = null;
    if ((current instanceof ApplicationHttpResponse) || (current instanceof Response) || (current instanceof HttpServletResponse))
        wrapper = new ApplicationHttpResponse((HttpServletResponse) current, state.including);
    else
        wrapper = new ApplicationResponse(current, state.including);
    if (previous == null)
        state.outerResponse = wrapper;
    else
        ((ServletResponseWrapper) previous).setResponse(wrapper);
    state.wrapResponse = wrapper;
    return (wrapper);
}

Example 5 with ServletResponseWrapper

use of javax.servlet.ServletResponseWrapper in project tomcat70 by apache.

the class ApplicationDispatcher method unwrapResponse.

/**
 * Unwrap the response if we have wrapped it.
 */
private void unwrapResponse(State state) {
    if (state.wrapResponse == null)
        return;
    if (state.outerRequest.isAsyncStarted()) {
        if (!state.outerRequest.getAsyncContext().hasOriginalRequestAndResponse()) {
            return;
        }
    }
    ServletResponse previous = null;
    ServletResponse current = state.outerResponse;
    while (current != null) {
        // If we run into the container response we are done
        if ((current instanceof Response) || (current instanceof ResponseFacade))
            break;
        // Remove the current response if it is our wrapper
        if (current == state.wrapResponse) {
            ServletResponse next = ((ServletResponseWrapper) current).getResponse();
            if (previous == null)
                state.outerResponse = next;
            else
                ((ServletResponseWrapper) previous).setResponse(next);
            break;
        }
        // Advance to the next response in the chain
        previous = current;
        current = ((ServletResponseWrapper) current).getResponse();
    }
}