Example usage for org.apache.commons.httpclient.methods PostMethod setRequestBody

Introduction

In this page you can find the example usage for org.apache.commons.httpclient.methods PostMethod setRequestBody.

Prototype

public void setRequestBody(NameValuePair[] paramArrayOfNameValuePair) throws IllegalArgumentException 

Source Link

Usage

From source file:org.jboss.test.security.test.SubjectContextUnitTestCase.java

public void testUserMethodViaServlet() throws Exception {
    log.debug("+++ testUserMethodViaServlet()");
    SecurityAssociation.clear();//  w  w  w.j  a  va 2 s .  c  om

    Principal callerIdentity = new SimplePrincipal("jduke");
    Principal runAsIdentity = new SimplePrincipal("runAsUser");
    HashSet expectedCallerRoles = new HashSet();
    expectedCallerRoles.add("groupMemberCaller");
    expectedCallerRoles.add("userCaller");
    expectedCallerRoles.add("allAuthCaller");
    expectedCallerRoles.add("webUser");
    HashSet expectedRunAsRoles = new HashSet();
    expectedRunAsRoles.add("identitySubstitutionCaller");
    expectedRunAsRoles.add("extraRunAsRole");
    CallerInfo info = new CallerInfo(callerIdentity, runAsIdentity, expectedCallerRoles, expectedRunAsRoles);

    String baseURL = HttpUtils.getBaseURL("jduke", "theduke");
    PostMethod formPost = new PostMethod(baseURL + "subject-context/restricted/RunAsServlet");
    formPost.setDoAuthentication(true);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject("userMethod");
    oos.writeObject(info);
    oos.close();
    log.info("post content length: " + baos.toByteArray().length);
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    formPost.setRequestBody(bais);
    String host = formPost.getHostConfiguration().getHost();
    HttpClient httpConn = new HttpClient();
    HttpState state = httpConn.getState();
    state.setAuthenticationPreemptive(true);
    UsernamePasswordCredentials upc = new UsernamePasswordCredentials("jduke", "theduke");
    state.setCredentials("JBossTest Servlets", host, upc);

    int responseCode = httpConn.executeMethod(formPost);
    assertTrue("POST OK(" + responseCode + ")", responseCode == HttpURLConnection.HTTP_OK);
}

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From source file:org.jbpm.process.workitem.rest.RESTWorkItemHandler.java

protected void doAuthorization(HttpClient httpclient, HttpMethod method, Map<String, Object> params) {
    if (type == null) {
        return;//ww w. ja v a 2  s. c o m
    }
    String u = (String) params.get("Username");
    String p = (String) params.get("Password");
    if (u == null || p == null) {
        u = this.username;
        p = this.password;
    }
    if (u == null) {
        throw new IllegalArgumentException("Could not find username");
    }
    if (p == null) {
        throw new IllegalArgumentException("Could not find password");
    }
    if (type == AuthenticationType.BASIC) {
        httpclient.getState().setCredentials(
                new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT, AuthScope.ANY_REALM),
                new UsernamePasswordCredentials(u, p));
        method.setDoAuthentication(true);
    } else if (type == AuthenticationType.FORM_BASED) {
        String authUrlStr = (String) params.get("AuthUrl");
        if (authUrlStr == null) {
            authUrlStr = authUrl;
        }
        if (authUrlStr == null) {
            throw new IllegalArgumentException("Could not find authentication url");
        }
        try {
            httpclient.executeMethod(method);
        } catch (IOException e) {
            throw new RuntimeException("Could not execute request for form-based authentication", e);
        } finally {
            method.releaseConnection();
        }
        PostMethod authMethod = new PostMethod(authUrlStr);
        NameValuePair[] data = { new NameValuePair("j_username", u), new NameValuePair("j_password", p) };
        authMethod.setRequestBody(data);
        try {
            httpclient.executeMethod(authMethod);
        } catch (IOException e) {
            throw new RuntimeException("Could not initialize form-based authentication", e);
        } finally {
            authMethod.releaseConnection();
        }
    } else {
        throw new RuntimeException("Unknown AuthenticationType " + type);
    }
}

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From source file:org.jenkinsci.plugins.jenkinsreviewbot.ReviewboardConnection.java

public boolean postComment(String url, String msg, boolean shipIt) throws IOException {
    ensureAuthentication();/*from   ww  w.j a v a 2s.  c om*/
    String postUrl = buildApiUrl(url, "reviews");
    PostMethod post = new PostMethod(postUrl);
    NameValuePair[] data = { new NameValuePair("body_top", msg), new NameValuePair("public", "true"),
            new NameValuePair("ship_it", String.valueOf(shipIt)) };
    post.setRequestBody(data);
    int response = http.executeMethod(post);
    return response == 200;
}

---

From source file:org.jenkinsci.plugins.jenkinsreviewbot.ReviewboardOps.java

public boolean postComment(ReviewboardConnection con, String url, String msg, boolean shipIt, boolean markdown)
        throws IOException {
    ensureAuthentication(con, http);//from   w  w w  . j  a  v  a 2  s. c o  m
    String postUrl = con.buildApiUrl(url, "reviews");
    PostMethod post = new PostMethod(postUrl);
    post.setDoAuthentication(true);
    NameValuePair[] data = { new NameValuePair("body_top", msg), new NameValuePair("public", "true"),
            new NameValuePair("ship_it", String.valueOf(shipIt)) };
    if (markdown) {
        List<NameValuePair> l = new LinkedList<NameValuePair>(Arrays.asList(data));
        l.add(new NameValuePair("body_top_text_type", "markdown"));
        l.add(new NameValuePair("text_type", "markdown")); //some Reviewboard versions require it
        data = l.toArray(new NameValuePair[l.size()]);
    }
    post.setRequestBody(data);
    int response;
    try {
        response = http.executeMethod(post);
    } finally {
        post.releaseConnection();
    }
    return response == 200;
}

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From source file:org.jivesoftware.openfire.update.UpdateManager.java

/**
 * Queries the igniterealtime.org server for new server and plugin updates.
 *
 * @param notificationsEnabled true if admins will be notified when new updates are found.
 * @throws Exception if some error happens during the query.
 *//*  w  w w  .j av  a 2  s.  co  m*/
public synchronized void checkForServerUpdate(boolean notificationsEnabled) throws Exception {
    // Get the XML request to include in the HTTP request
    String requestXML = getServerUpdateRequest();
    // Send the request to the server
    HttpClient httpClient = new HttpClient();
    // Check if a proxy should be used
    if (isUsingProxy()) {
        HostConfiguration hc = new HostConfiguration();
        hc.setProxy(getProxyHost(), getProxyPort());
        httpClient.setHostConfiguration(hc);
    }
    PostMethod postMethod = new PostMethod(updateServiceURL);
    NameValuePair[] data = { new NameValuePair("type", "update"), new NameValuePair("query", requestXML) };
    postMethod.setRequestBody(data);
    if (httpClient.executeMethod(postMethod) == 200) {
        // Process answer from the server
        String responseBody = postMethod.getResponseBodyAsString();
        processServerUpdateResponse(responseBody, notificationsEnabled);
    }
}

---

From source file:org.jivesoftware.openfire.update.UpdateManager.java

public synchronized void checkForPluginsUpdates(boolean notificationsEnabled) throws Exception {
    // Get the XML request to include in the HTTP request
    String requestXML = getAvailablePluginsUpdateRequest();
    // Send the request to the server
    HttpClient httpClient = new HttpClient();
    // Check if a proxy should be used
    if (isUsingProxy()) {
        HostConfiguration hc = new HostConfiguration();
        hc.setProxy(getProxyHost(), getProxyPort());
        httpClient.setHostConfiguration(hc);
    }//from www  . j  a va 2  s  .co m
    PostMethod postMethod = new PostMethod(updateServiceURL);
    NameValuePair[] data = { new NameValuePair("type", "available"), new NameValuePair("query", requestXML) };
    postMethod.setRequestBody(data);
    if (httpClient.executeMethod(postMethod) == 200) {
        // Process answer from the server
        String responseBody = postMethod.getResponseBodyAsString();
        processAvailablePluginsResponse(responseBody, notificationsEnabled);
    }
}

---

From source file:org.josso.gl2.gateway.reverseproxy.ReverseProxyValve.java

/**
 * Intercepts Http request and redirects it to the configured SSO partner application.
 *
 * @param request The servlet request to be processed
 * @param response The servlet response to be created
 * @exception IOException if an input/output error occurs
 * @exception javax.servlet.ServletException if a servlet error occurs
 *///  www.jav a 2 s . c  o  m
public int invoke(Request request, Response response) throws IOException, ServletException {

    if (debug >= 1)
        log("ReverseProxyValve Acting.");

    ProxyContextConfig[] contexts = _rpc.getProxyContexts();

    // Create an instance of HttpClient.
    HttpClient client = new HttpClient();

    HttpServletRequest hsr = (HttpServletRequest) request.getRequest();
    String uri = hsr.getRequestURI();

    String uriContext = null;

    StringTokenizer st = new StringTokenizer(uri.substring(1), "/");
    while (st.hasMoreTokens()) {
        String token = st.nextToken();
        uriContext = "/" + token;
        break;
    }

    if (uriContext == null)
        uriContext = uri;

    // Obtain the target host from the
    String proxyForwardHost = null;
    String proxyForwardUri = null;

    for (int i = 0; i < contexts.length; i++) {
        if (contexts[i].getContext().equals(uriContext)) {
            log("Proxy context mapped to host/uri: " + contexts[i].getForwardHost()
                    + contexts[i].getForwardUri());
            proxyForwardHost = contexts[i].getForwardHost();
            proxyForwardUri = contexts[i].getForwardUri();
            break;
        }
    }

    if (proxyForwardHost == null) {
        log("URI '" + uri + "' can't be mapped to host");
        //valveContext.invokeNext(request, response);
        return Valve.INVOKE_NEXT;
    }

    if (proxyForwardUri == null) {
        // trim the uri context before submitting the http request
        int uriTrailStartPos = uri.substring(1).indexOf("/") + 1;
        proxyForwardUri = uri.substring(uriTrailStartPos);
    } else {
        int uriTrailStartPos = uri.substring(1).indexOf("/") + 1;
        proxyForwardUri = proxyForwardUri + uri.substring(uriTrailStartPos);
    }

    // log ("Proxy request mapped to " + "http://" + proxyForwardHost + proxyForwardUri);

    HttpMethod method;

    // to be moved to a builder which instantiates and build concrete methods.
    if (hsr.getMethod().equals(METHOD_GET)) {
        // Create a method instance.
        HttpMethod getMethod = new GetMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        method = getMethod;
    } else if (hsr.getMethod().equals(METHOD_POST)) {
        // Create a method instance.
        PostMethod postMethod = new PostMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        postMethod.setRequestBody(hsr.getInputStream());
        method = postMethod;
    } else if (hsr.getMethod().equals(METHOD_HEAD)) {
        // Create a method instance.
        HeadMethod headMethod = new HeadMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        method = headMethod;
    } else if (hsr.getMethod().equals(METHOD_PUT)) {
        method = new PutMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
    } else
        throw new java.lang.UnsupportedOperationException("Unknown method : " + hsr.getMethod());

    // copy incoming http headers to reverse proxy request
    Enumeration hne = hsr.getHeaderNames();
    while (hne.hasMoreElements()) {
        String hn = (String) hne.nextElement();

        // Map the received host header to the target host name
        // so that the configured virtual domain can
        // do the proper handling.
        if (hn.equalsIgnoreCase("host")) {
            method.addRequestHeader("Host", proxyForwardHost);
            continue;
        }

        Enumeration hvals = hsr.getHeaders(hn);
        while (hvals.hasMoreElements()) {
            String hv = (String) hvals.nextElement();
            method.addRequestHeader(hn, hv);
        }
    }

    // Add Reverse-Proxy-Host header
    String reverseProxyHost = getReverseProxyHost(request);
    method.addRequestHeader(Constants.JOSSO_REVERSE_PROXY_HEADER, reverseProxyHost);

    if (debug >= 1)
        log("Sending " + Constants.JOSSO_REVERSE_PROXY_HEADER + " " + reverseProxyHost);

    // DO NOT follow redirects !
    method.setFollowRedirects(false);

    // By default the httpclient uses HTTP v1.1. We are downgrading it
    // to v1.0 so that the target server doesn't set a reply using chunked
    // transfer encoding which doesn't seem to be handled properly.
    // Check how to make chunked transfer encoding work.
    client.getParams().setVersion(new HttpVersion(1, 0));

    // Execute the method.
    int statusCode = -1;
    try {
        // execute the method.
        statusCode = client.executeMethod(method);
    } catch (HttpRecoverableException e) {
        log("A recoverable exception occurred " + e.getMessage());
    } catch (IOException e) {
        log("Failed to connect.");
        e.printStackTrace();
    }

    // Check that we didn't run out of retries.
    if (statusCode == -1) {
        log("Failed to recover from exception.");
    }

    // Read the response body.
    byte[] responseBody = method.getResponseBody();

    // Release the connection.
    method.releaseConnection();

    HttpServletResponse sres = (HttpServletResponse) response.getResponse();

    // First thing to do is to copy status code to response, otherwise
    // catalina will do it as soon as we set a header or some other part of the response.
    sres.setStatus(method.getStatusCode());

    // copy proxy response headers to client response
    Header[] responseHeaders = method.getResponseHeaders();
    for (int i = 0; i < responseHeaders.length; i++) {
        Header responseHeader = responseHeaders[i];
        String name = responseHeader.getName();
        String value = responseHeader.getValue();

        // Adjust the URL in the Location, Content-Location and URI headers on HTTP redirect responses
        // This is essential to avoid by-passing the reverse proxy because of HTTP redirects on the
        // backend servers which stay behind the reverse proxy
        switch (method.getStatusCode()) {
        case HttpStatus.SC_MOVED_TEMPORARILY:
        case HttpStatus.SC_MOVED_PERMANENTLY:
        case HttpStatus.SC_SEE_OTHER:
        case HttpStatus.SC_TEMPORARY_REDIRECT:

            if ("Location".equalsIgnoreCase(name) || "Content-Location".equalsIgnoreCase(name)
                    || "URI".equalsIgnoreCase(name)) {

                // Check that this redirect must be adjusted.
                if (value.indexOf(proxyForwardHost) >= 0) {
                    String trail = value.substring(proxyForwardHost.length());
                    value = getReverseProxyHost(request) + trail;
                    if (debug >= 1)
                        log("Adjusting redirect header to " + value);
                }
            }
            break;

        } //end of switch
        sres.addHeader(name, value);

    }

    // Sometimes this is null, when no body is returned ...
    if (responseBody != null && responseBody.length > 0)
        sres.getOutputStream().write(responseBody);

    sres.getOutputStream().flush();

    if (debug >= 1)
        log("ReverseProxyValve finished.");

    return Valve.END_PIPELINE;
}

---

From source file:org.josso.tc50.gateway.reverseproxy.ReverseProxyValve.java

/**
 * Intercepts Http request and redirects it to the configured SSO partner application.
 *
 * @param request The servlet request to be processed
 * @param response The servlet response to be created
 * @param valveContext The valve _context used to invoke the next valve
 *  in the current processing pipeline//ww w.  j  a v  a2  s  .  com
 * @exception IOException if an input/output error occurs
 * @exception javax.servlet.ServletException if a servlet error occurs
 */
public void invoke(Request request, Response response, ValveContext valveContext)
        throws IOException, javax.servlet.ServletException {

    if (debug >= 1)
        log("ReverseProxyValve Acting.");

    ProxyContextConfig[] contexts = _rpc.getProxyContexts();

    // Create an instance of HttpClient.
    HttpClient client = new HttpClient();

    HttpServletRequest hsr = (HttpServletRequest) request.getRequest();
    String uri = hsr.getRequestURI();

    String uriContext = null;

    StringTokenizer st = new StringTokenizer(uri.substring(1), "/");
    while (st.hasMoreTokens()) {
        String token = st.nextToken();
        uriContext = "/" + token;
        break;
    }

    if (uriContext == null)
        uriContext = uri;

    // Obtain the target host from the
    String proxyForwardHost = null;
    String proxyForwardUri = null;

    for (int i = 0; i < contexts.length; i++) {
        if (contexts[i].getContext().equals(uriContext)) {
            log("Proxy context mapped to host/uri: " + contexts[i].getForwardHost()
                    + contexts[i].getForwardUri());
            proxyForwardHost = contexts[i].getForwardHost();
            proxyForwardUri = contexts[i].getForwardUri();
            break;
        }
    }

    if (proxyForwardHost == null) {
        log("URI '" + uri + "' can't be mapped to host");
        valveContext.invokeNext(request, response);
        return;
    }

    if (proxyForwardUri == null) {
        // trim the uri context before submitting the http request
        int uriTrailStartPos = uri.substring(1).indexOf("/") + 1;
        proxyForwardUri = uri.substring(uriTrailStartPos);
    } else {
        int uriTrailStartPos = uri.substring(1).indexOf("/") + 1;
        proxyForwardUri = proxyForwardUri + uri.substring(uriTrailStartPos);
    }

    // log ("Proxy request mapped to " + "http://" + proxyForwardHost + proxyForwardUri);

    HttpMethod method;

    // to be moved to a builder which instantiates and build concrete methods.
    if (hsr.getMethod().equals(METHOD_GET)) {
        // Create a method instance.
        HttpMethod getMethod = new GetMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        method = getMethod;
    } else if (hsr.getMethod().equals(METHOD_POST)) {
        // Create a method instance.
        PostMethod postMethod = new PostMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        postMethod.setRequestBody(hsr.getInputStream());
        method = postMethod;
    } else if (hsr.getMethod().equals(METHOD_HEAD)) {
        // Create a method instance.
        HeadMethod headMethod = new HeadMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        method = headMethod;
    } else if (hsr.getMethod().equals(METHOD_PUT)) {
        method = new PutMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
    } else
        throw new java.lang.UnsupportedOperationException("Unknown method : " + hsr.getMethod());

    // copy incoming http headers to reverse proxy request
    Enumeration hne = hsr.getHeaderNames();
    while (hne.hasMoreElements()) {
        String hn = (String) hne.nextElement();

        // Map the received host header to the target host name
        // so that the configured virtual domain can
        // do the proper handling.
        if (hn.equalsIgnoreCase("host")) {
            method.addRequestHeader("Host", proxyForwardHost);
            continue;
        }

        Enumeration hvals = hsr.getHeaders(hn);
        while (hvals.hasMoreElements()) {
            String hv = (String) hvals.nextElement();
            method.addRequestHeader(hn, hv);
        }
    }

    // Add Reverse-Proxy-Host header
    String reverseProxyHost = getReverseProxyHost(request);
    method.addRequestHeader(Constants.JOSSO_REVERSE_PROXY_HEADER, reverseProxyHost);

    if (debug >= 1)
        log("Sending " + Constants.JOSSO_REVERSE_PROXY_HEADER + " " + reverseProxyHost);

    // DO NOT follow redirects !
    method.setFollowRedirects(false);

    // By default the httpclient uses HTTP v1.1. We are downgrading it
    // to v1.0 so that the target server doesn't set a reply using chunked
    // transfer encoding which doesn't seem to be handled properly.
    // Check how to make chunked transfer encoding work.
    client.getParams().setVersion(new HttpVersion(1, 0));

    // Execute the method.
    int statusCode = -1;
    try {
        // execute the method.
        statusCode = client.executeMethod(method);
    } catch (HttpRecoverableException e) {
        log("A recoverable exception occurred " + e.getMessage());
    } catch (IOException e) {
        log("Failed to connect.");
        e.printStackTrace();
    }

    // Check that we didn't run out of retries.
    if (statusCode == -1) {
        log("Failed to recover from exception.");
    }

    // Read the response body.
    byte[] responseBody = method.getResponseBody();

    // Release the connection.
    method.releaseConnection();

    HttpServletResponse sres = (HttpServletResponse) response.getResponse();

    // First thing to do is to copy status code to response, otherwise
    // catalina will do it as soon as we set a header or some other part of the response.
    sres.setStatus(method.getStatusCode());

    // copy proxy response headers to client response
    Header[] responseHeaders = method.getResponseHeaders();
    for (int i = 0; i < responseHeaders.length; i++) {
        Header responseHeader = responseHeaders[i];
        String name = responseHeader.getName();
        String value = responseHeader.getValue();

        // Adjust the URL in the Location, Content-Location and URI headers on HTTP redirect responses
        // This is essential to avoid by-passing the reverse proxy because of HTTP redirects on the
        // backend servers which stay behind the reverse proxy
        switch (method.getStatusCode()) {
        case HttpStatus.SC_MOVED_TEMPORARILY:
        case HttpStatus.SC_MOVED_PERMANENTLY:
        case HttpStatus.SC_SEE_OTHER:
        case HttpStatus.SC_TEMPORARY_REDIRECT:

            if ("Location".equalsIgnoreCase(name) || "Content-Location".equalsIgnoreCase(name)
                    || "URI".equalsIgnoreCase(name)) {

                // Check that this redirect must be adjusted.
                if (value.indexOf(proxyForwardHost) >= 0) {
                    String trail = value.substring(proxyForwardHost.length());
                    value = getReverseProxyHost(request) + trail;
                    if (debug >= 1)
                        log("Adjusting redirect header to " + value);
                }
            }
            break;

        } //end of switch
        sres.addHeader(name, value);

    }

    // Sometimes this is null, when no body is returned ...
    if (responseBody != null && responseBody.length > 0)
        sres.getOutputStream().write(responseBody);

    sres.getOutputStream().flush();

    if (debug >= 1)
        log("ReverseProxyValve finished.");

    return;
}

---

From source file:org.josso.tc55.gateway.reverseproxy.ReverseProxyValve.java

/**
 * Intercepts Http request and redirects it to the configured SSO partner application.
 *
 * @param request The servlet request to be processed
 * @param response The servlet response to be created
 *  in the current processing pipeline//from  w  ww  .  j a v  a2s.c om
 * @exception IOException if an input/output error occurs
 * @exception javax.servlet.ServletException if a servlet error occurs
 */
public void invoke(Request request, Response response) throws IOException, javax.servlet.ServletException {

    if (container.getLogger().isDebugEnabled())
        container.getLogger().debug("ReverseProxyValve Acting.");

    ProxyContextConfig[] contexts = _rpc.getProxyContexts();

    // Create an instance of HttpClient.
    HttpClient client = new HttpClient();

    HttpServletRequest hsr = (HttpServletRequest) request.getRequest();
    String uri = hsr.getRequestURI();

    String uriContext = null;

    StringTokenizer st = new StringTokenizer(uri.substring(1), "/");
    while (st.hasMoreTokens()) {
        String token = st.nextToken();
        uriContext = "/" + token;
        break;
    }

    if (uriContext == null)
        uriContext = uri;

    // Obtain the target host from the
    String proxyForwardHost = null;
    String proxyForwardUri = null;

    for (int i = 0; i < contexts.length; i++) {
        if (contexts[i].getContext().equals(uriContext)) {
            log("Proxy context mapped to host/uri: " + contexts[i].getForwardHost()
                    + contexts[i].getForwardUri());
            proxyForwardHost = contexts[i].getForwardHost();
            proxyForwardUri = contexts[i].getForwardUri();
            break;
        }
    }

    if (proxyForwardHost == null) {
        log("URI '" + uri + "' can't be mapped to host");
        getNext().invoke(request, response);
        return;
    }

    if (proxyForwardUri == null) {
        // trim the uri context before submitting the http request
        int uriTrailStartPos = uri.substring(1).indexOf("/") + 1;
        proxyForwardUri = uri.substring(uriTrailStartPos);
    } else {
        int uriTrailStartPos = uri.substring(1).indexOf("/") + 1;
        proxyForwardUri = proxyForwardUri + uri.substring(uriTrailStartPos);
    }

    // log ("Proxy request mapped to " + "http://" + proxyForwardHost + proxyForwardUri);

    HttpMethod method;

    // to be moved to a builder which instantiates and build concrete methods.
    if (hsr.getMethod().equals(METHOD_GET)) {
        // Create a method instance.
        HttpMethod getMethod = new GetMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        method = getMethod;
    } else if (hsr.getMethod().equals(METHOD_POST)) {
        // Create a method instance.
        PostMethod postMethod = new PostMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        postMethod.setRequestBody(hsr.getInputStream());
        method = postMethod;
    } else if (hsr.getMethod().equals(METHOD_HEAD)) {
        // Create a method instance.
        HeadMethod headMethod = new HeadMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        method = headMethod;
    } else if (hsr.getMethod().equals(METHOD_PUT)) {
        method = new PutMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
    } else
        throw new java.lang.UnsupportedOperationException("Unknown method : " + hsr.getMethod());

    // copy incoming http headers to reverse proxy request
    Enumeration hne = hsr.getHeaderNames();
    while (hne.hasMoreElements()) {
        String hn = (String) hne.nextElement();

        // Map the received host header to the target host name
        // so that the configured virtual domain can
        // do the proper handling.
        if (hn.equalsIgnoreCase("host")) {
            method.addRequestHeader("Host", proxyForwardHost);
            continue;
        }

        Enumeration hvals = hsr.getHeaders(hn);
        while (hvals.hasMoreElements()) {
            String hv = (String) hvals.nextElement();
            method.addRequestHeader(hn, hv);
        }
    }

    // Add Reverse-Proxy-Host header
    String reverseProxyHost = getReverseProxyHost(request);
    method.addRequestHeader(Constants.JOSSO_REVERSE_PROXY_HEADER, reverseProxyHost);

    if (container.getLogger().isDebugEnabled())
        container.getLogger().debug("Sending " + Constants.JOSSO_REVERSE_PROXY_HEADER + " " + reverseProxyHost);

    // DO NOT follow redirects !
    method.setFollowRedirects(false);

    // By default the httpclient uses HTTP v1.1. We are downgrading it
    // to v1.0 so that the target server doesn't set a reply using chunked
    // transfer encoding which doesn't seem to be handled properly.
    // Check how to make chunked transfer encoding work.
    client.getParams().setVersion(new HttpVersion(1, 0));

    // Execute the method.
    int statusCode = -1;
    try {
        // execute the method.
        statusCode = client.executeMethod(method);
    } catch (HttpRecoverableException e) {
        log("A recoverable exception occurred " + e.getMessage());
    } catch (IOException e) {
        log("Failed to connect.");
        e.printStackTrace();
    }

    // Check that we didn't run out of retries.
    if (statusCode == -1) {
        log("Failed to recover from exception.");
    }

    // Read the response body.
    byte[] responseBody = method.getResponseBody();

    // Release the connection.
    method.releaseConnection();

    HttpServletResponse sres = (HttpServletResponse) response.getResponse();

    // First thing to do is to copy status code to response, otherwise
    // catalina will do it as soon as we set a header or some other part of the response.
    sres.setStatus(method.getStatusCode());

    // copy proxy response headers to client response
    Header[] responseHeaders = method.getResponseHeaders();
    for (int i = 0; i < responseHeaders.length; i++) {
        Header responseHeader = responseHeaders[i];
        String name = responseHeader.getName();
        String value = responseHeader.getValue();

        // Adjust the URL in the Location, Content-Location and URI headers on HTTP redirect responses
        // This is essential to avoid by-passing the reverse proxy because of HTTP redirects on the
        // backend servers which stay behind the reverse proxy
        switch (method.getStatusCode()) {
        case HttpStatus.SC_MOVED_TEMPORARILY:
        case HttpStatus.SC_MOVED_PERMANENTLY:
        case HttpStatus.SC_SEE_OTHER:
        case HttpStatus.SC_TEMPORARY_REDIRECT:

            if ("Location".equalsIgnoreCase(name) || "Content-Location".equalsIgnoreCase(name)
                    || "URI".equalsIgnoreCase(name)) {

                // Check that this redirect must be adjusted.
                if (value.indexOf(proxyForwardHost) >= 0) {
                    String trail = value.substring(proxyForwardHost.length());
                    value = getReverseProxyHost(request) + trail;
                    if (container.getLogger().isDebugEnabled())
                        container.getLogger().debug("Adjusting redirect header to " + value);
                }
            }
            break;

        } //end of switch
        sres.addHeader(name, value);

    }

    // Sometimes this is null, when no body is returned ...
    if (responseBody != null && responseBody.length > 0)
        sres.getOutputStream().write(responseBody);

    sres.getOutputStream().flush();

    if (container.getLogger().isDebugEnabled())
        container.getLogger().debug("ReverseProxyValve finished.");

    return;
}

---

From source file:org.josso.tc60.gateway.reverseproxy.ReverseProxyValve.java

/**
 * Intercepts Http request and redirects it to the configured SSO partner application.
 *
 * @param request The servlet request to be processed
 * @param response The servlet response to be created
 *  in the current processing pipeline/*from   w  ww.  j a  v a 2s. c  om*/
 * @exception IOException if an input/output error occurs
 * @exception javax.servlet.ServletException if a servlet error occurs
 */
public void invoke(Request request, Response response) throws IOException, javax.servlet.ServletException {

    if (container.getLogger().isDebugEnabled())
        container.getLogger().debug("ReverseProxyValve Acting.");

    ProxyContextConfig[] contexts = _rpc.getProxyContexts();

    // Create an instance of HttpClient.
    HttpClient client = new HttpClient();

    HttpServletRequest hsr = (HttpServletRequest) request.getRequest();
    String uri = hsr.getRequestURI();

    String uriContext = null;

    StringTokenizer st = new StringTokenizer(uri.substring(1), "/");
    while (st.hasMoreTokens()) {
        String token = st.nextToken();
        uriContext = "/" + token;
        break;
    }

    if (uriContext == null)
        uriContext = uri;

    // Obtain the target host from the
    String proxyForwardHost = null;
    String proxyForwardUri = null;

    for (int i = 0; i < contexts.length; i++) {
        if (contexts[i].getContext().equals(uriContext)) {
            log("Proxy context mapped to host/uri: " + contexts[i].getForwardHost()
                    + contexts[i].getForwardUri());
            proxyForwardHost = contexts[i].getForwardHost();
            proxyForwardUri = contexts[i].getForwardUri();
            break;
        }
    }

    if (proxyForwardHost == null) {
        log("URI '" + uri + "' can't be mapped to host");
        getNext().invoke(request, response);
        return;
    }

    if (proxyForwardUri == null) {
        // trim the uri context before submitting the http request
        int uriTrailStartPos = uri.substring(1).indexOf("/") + 1;
        proxyForwardUri = uri.substring(uriTrailStartPos);
    } else {
        int uriTrailStartPos = uri.substring(1).indexOf("/") + 1;
        proxyForwardUri = proxyForwardUri + uri.substring(uriTrailStartPos);
    }

    // log ("Proxy request mapped to " + "http://" + proxyForwardHost + proxyForwardUri);

    HttpMethod method;

    // to be moved to a builder which instantiates and build concrete methods.
    if (hsr.getMethod().equals(METHOD_GET)) {
        // Create a method instance.
        HttpMethod getMethod = new GetMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        method = getMethod;
    } else if (hsr.getMethod().equals(METHOD_POST)) {
        // Create a method instance.
        PostMethod postMethod = new PostMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        postMethod.setRequestBody(hsr.getInputStream());
        method = postMethod;
    } else if (hsr.getMethod().equals(METHOD_HEAD)) {
        // Create a method instance.
        HeadMethod headMethod = new HeadMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
        method = headMethod;
    } else if (hsr.getMethod().equals(METHOD_PUT)) {
        method = new PutMethod(proxyForwardHost + proxyForwardUri
                + (hsr.getQueryString() != null ? ("?" + hsr.getQueryString()) : ""));
    } else
        throw new java.lang.UnsupportedOperationException("Unknown method : " + hsr.getMethod());

    // copy incoming http headers to reverse proxy request
    Enumeration hne = hsr.getHeaderNames();
    while (hne.hasMoreElements()) {
        String hn = (String) hne.nextElement();

        // Map the received host header to the target host name
        // so that the configured virtual domain can
        // do the proper handling.
        if (hn.equalsIgnoreCase("host")) {
            method.addRequestHeader("Host", proxyForwardHost);
            continue;
        }

        Enumeration hvals = hsr.getHeaders(hn);
        while (hvals.hasMoreElements()) {
            String hv = (String) hvals.nextElement();
            method.addRequestHeader(hn, hv);
        }
    }

    // Add Reverse-Proxy-Host header
    String reverseProxyHost = getReverseProxyHost(request);
    method.addRequestHeader(Constants.JOSSO_REVERSE_PROXY_HEADER, reverseProxyHost);

    if (container.getLogger().isDebugEnabled())
        container.getLogger().debug("Sending " + Constants.JOSSO_REVERSE_PROXY_HEADER + " " + reverseProxyHost);

    // DO NOT follow redirects !
    method.setFollowRedirects(false);

    // By default the httpclient uses HTTP v1.1. We are downgrading it
    // to v1.0 so that the target server doesn't set a reply using chunked
    // transfer encoding which doesn't seem to be handled properly.
    client.getParams().setVersion(new HttpVersion(1, 0));

    // Execute the method.
    int statusCode = -1;
    try {
        // execute the method.
        statusCode = client.executeMethod(method);
    } catch (HttpRecoverableException e) {
        log("A recoverable exception occurred " + e.getMessage());
    } catch (IOException e) {
        log("Failed to connect.");
        e.printStackTrace();
    }

    // Check that we didn't run out of retries.
    if (statusCode == -1) {
        log("Failed to recover from exception.");
    }

    // Read the response body.
    byte[] responseBody = method.getResponseBody();

    // Release the connection.
    method.releaseConnection();

    HttpServletResponse sres = (HttpServletResponse) response.getResponse();

    // First thing to do is to copy status code to response, otherwise
    // catalina will do it as soon as we set a header or some other part of the response.
    sres.setStatus(method.getStatusCode());

    // copy proxy response headers to client response
    Header[] responseHeaders = method.getResponseHeaders();
    for (int i = 0; i < responseHeaders.length; i++) {
        Header responseHeader = responseHeaders[i];
        String name = responseHeader.getName();
        String value = responseHeader.getValue();

        // Adjust the URL in the Location, Content-Location and URI headers on HTTP redirect responses
        // This is essential to avoid by-passing the reverse proxy because of HTTP redirects on the
        // backend servers which stay behind the reverse proxy
        switch (method.getStatusCode()) {
        case HttpStatus.SC_MOVED_TEMPORARILY:
        case HttpStatus.SC_MOVED_PERMANENTLY:
        case HttpStatus.SC_SEE_OTHER:
        case HttpStatus.SC_TEMPORARY_REDIRECT:

            if ("Location".equalsIgnoreCase(name) || "Content-Location".equalsIgnoreCase(name)
                    || "URI".equalsIgnoreCase(name)) {

                // Check that this redirect must be adjusted.
                if (value.indexOf(proxyForwardHost) >= 0) {
                    String trail = value.substring(proxyForwardHost.length());
                    value = getReverseProxyHost(request) + trail;
                    if (container.getLogger().isDebugEnabled())
                        container.getLogger().debug("Adjusting redirect header to " + value);
                }
            }
            break;

        } //end of switch
        sres.addHeader(name, value);

    }

    // Sometimes this is null, when no body is returned ...
    if (responseBody != null && responseBody.length > 0)
        sres.getOutputStream().write(responseBody);

    sres.getOutputStream().flush();

    if (container.getLogger().isDebugEnabled())
        container.getLogger().debug("ReverseProxyValve finished.");

    return;
}

---

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