Examples with HttpServlet javax.servlet.http.HttpServlet used on opensource projects

Example 16 with HttpServlet

use of javax.servlet.http.HttpServlet in project jetty.project by eclipse.

the class ProxyServletTest method testCachingProxy.

@Test
public void testCachingProxy() throws Exception {
    final byte[] content = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF };
    startServer(new HttpServlet() {

        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
            if (req.getHeader("Via") != null)
                resp.addHeader(PROXIED_HEADER, "true");
            resp.getOutputStream().write(content);
        }
    });
    // Don't do this at home: this example is not concurrent, not complete,
    // it is only used for this test and to verify that ProxyServlet can be
    // subclassed enough to write your own caching servlet
    final String cacheHeader = "X-Cached";
    proxyServlet = new ProxyServlet() {

        private Map<String, ContentResponse> cache = new HashMap<>();

        private Map<String, ByteArrayOutputStream> temp = new HashMap<>();

        @Override
        protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            ContentResponse cachedResponse = cache.get(request.getRequestURI());
            if (cachedResponse != null) {
                response.setStatus(cachedResponse.getStatus());
                // Should copy headers too, but keep it simple
                response.addHeader(cacheHeader, "true");
                response.getOutputStream().write(cachedResponse.getContent());
            } else {
                super.service(request, response);
            }
        }

        @Override
        protected void onResponseContent(HttpServletRequest request, HttpServletResponse response, Response proxyResponse, byte[] buffer, int offset, int length, Callback callback) {
            // Accumulate the response content
            ByteArrayOutputStream baos = temp.get(request.getRequestURI());
            if (baos == null) {
                baos = new ByteArrayOutputStream();
                temp.put(request.getRequestURI(), baos);
            }
            baos.write(buffer, offset, length);
            super.onResponseContent(request, response, proxyResponse, buffer, offset, length, callback);
        }

        @Override
        protected void onProxyResponseSuccess(HttpServletRequest request, HttpServletResponse response, Response proxyResponse) {
            byte[] content = temp.remove(request.getRequestURI()).toByteArray();
            ContentResponse cached = new HttpContentResponse(proxyResponse, content, null, null);
            cache.put(request.getRequestURI(), cached);
            super.onProxyResponseSuccess(request, response, proxyResponse);
        }
    };
    startProxy();
    startClient();
    // First request
    ContentResponse response = client.newRequest("localhost", serverConnector.getLocalPort()).timeout(5, TimeUnit.SECONDS).send();
    Assert.assertEquals(200, response.getStatus());
    Assert.assertTrue(response.getHeaders().containsKey(PROXIED_HEADER));
    Assert.assertArrayEquals(content, response.getContent());
    // Second request should be cached
    response = client.newRequest("localhost", serverConnector.getLocalPort()).timeout(5, TimeUnit.SECONDS).send();
    Assert.assertEquals(200, response.getStatus());
    Assert.assertTrue(response.getHeaders().containsKey(cacheHeader));
    Assert.assertArrayEquals(content, response.getContent());
}

Example 17 with HttpServlet

use of javax.servlet.http.HttpServlet in project jetty.project by eclipse.

the class ProxyServletTest method testProxyWithoutContent.

@Test
public void testProxyWithoutContent() throws Exception {
    startServer(new HttpServlet() {

        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
            if (req.getHeader("Via") != null)
                resp.addHeader(PROXIED_HEADER, "true");
        }
    });
    startProxy();
    startClient();
    ContentResponse response = client.newRequest("localhost", serverConnector.getLocalPort()).timeout(5, TimeUnit.SECONDS).send();
    Assert.assertEquals("OK", response.getReason());
    Assert.assertEquals(200, response.getStatus());
    Assert.assertTrue(response.getHeaders().containsKey(PROXIED_HEADER));
}

Example 18 with HttpServlet

use of javax.servlet.http.HttpServlet in project jetty.project by eclipse.

the class ProxyServletTest method testTransparentProxyWithQueryWithSpaces.

@Test
public void testTransparentProxyWithQueryWithSpaces() throws Exception {
    final String target = "/test";
    final String query = "a=1&b=2&c=1234%205678&d=hello+world";
    startServer(new HttpServlet() {

        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
            if (req.getHeader("Via") != null)
                resp.addHeader(PROXIED_HEADER, "true");
            if (target.equals(req.getRequestURI())) {
                if (query.equals(req.getQueryString())) {
                    resp.setStatus(200);
                    return;
                }
            }
            resp.setStatus(404);
        }
    });
    String proxyTo = "http://localhost:" + serverConnector.getLocalPort();
    String prefix = "/proxy";
    proxyServlet = new ProxyServlet.Transparent();
    Map<String, String> params = new HashMap<>();
    params.put("proxyTo", proxyTo);
    params.put("prefix", prefix);
    startProxy(params);
    startClient();
    // Make the request to the proxy, it should transparently forward to the server
    ContentResponse response = client.newRequest("localhost", proxyConnector.getLocalPort()).path(prefix + target + "?" + query).timeout(5, TimeUnit.SECONDS).send();
    Assert.assertEquals(200, response.getStatus());
    Assert.assertTrue(response.getHeaders().containsKey(PROXIED_HEADER));
}

Example 19 with HttpServlet

use of javax.servlet.http.HttpServlet in project jetty.project by eclipse.

the class ProxyServletTest method testTransparentProxyWithPrefix.

private void testTransparentProxyWithPrefix(String prefix) throws Exception {
    final String target = "/test";
    startServer(new HttpServlet() {

        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
            if (req.getHeader("Via") != null)
                resp.addHeader(PROXIED_HEADER, "true");
            resp.setStatus(target.equals(req.getRequestURI()) ? 200 : 404);
        }
    });
    String proxyTo = "http://localhost:" + serverConnector.getLocalPort();
    proxyServlet = new ProxyServlet.Transparent();
    Map<String, String> params = new HashMap<>();
    params.put("proxyTo", proxyTo);
    params.put("prefix", prefix);
    startProxy(params);
    startClient();
    // Make the request to the proxy, it should transparently forward to the server
    ContentResponse response = client.newRequest("localhost", proxyConnector.getLocalPort()).path((prefix + target).replaceAll("//", "/")).timeout(5, TimeUnit.SECONDS).send();
    Assert.assertEquals(200, response.getStatus());
    Assert.assertTrue(response.getHeaders().containsKey(PROXIED_HEADER));
}

Example 20 with HttpServlet

use of javax.servlet.http.HttpServlet in project jetty.project by eclipse.

the class ProxyServletTest method testRedirectsAreProxied.

@Test
public void testRedirectsAreProxied() throws Exception {
    startServer(new HttpServlet() {

        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
            if (req.getHeader("Via") != null)
                resp.addHeader(PROXIED_HEADER, "true");
            resp.sendRedirect("/");
        }
    });
    startProxy();
    startClient();
    client.setFollowRedirects(false);
    ContentResponse response = client.newRequest("localhost", serverConnector.getLocalPort()).timeout(5, TimeUnit.SECONDS).send();
    Assert.assertEquals(302, response.getStatus());
    Assert.assertTrue(response.getHeaders().containsKey(PROXIED_HEADER));
}