Java Code Examples for org.apache.commons.httpclient.HttpStatus#SC_MOVED_PERMANENTLY

private boolean isRedirect(HttpMethod method)
{
    switch (method.getStatusCode()) {
    case HttpStatus.SC_MOVED_TEMPORARILY:
    case HttpStatus.SC_MOVED_PERMANENTLY:
    case HttpStatus.SC_SEE_OTHER:
    case HttpStatus.SC_TEMPORARY_REDIRECT:
        if (method.getFollowRedirects()) {
            return true;
        } else {
            return false;
        }
    default:
        return false;
    }
}
 

/**
 * <p>
 * 请求转向不同同服务器的其他应用
 * </p>
 * @param appServer
 * @param req
 * @param response
 * @throws IOException
 * @throws BusinessServletException
 */
private void proxy4ForeignApplication(AppServer appServer, HttpServletResponse response) throws IOException, BusinessServletException {
       HttpClient client = HttpClientUtil.getHttpClient(appServer); // 创建HttpClient对象
	HttpState httpState = client.getState();
	
	/* 设置用户令牌相关Cookie，包括一个token Cookie和一个 sessionId Cookie */
       boolean isSecure = Context.getRequestContext().isSecure(); //是否https请求
       String currentAppCode = Context.getApplicationContext().getCurrentAppCode(); //当前应用code
       String domain = appServer.getDomain();
       String path   = appServer.getPath(); 
       if (Context.isOnline()) {
           httpState.addCookie(new Cookie(domain, RequestContext.USER_TOKEN, Context.getToken(), path, null, isSecure)); //token = ****************
       }
       if (Environment.getSessionId() != null) {
           httpState.addCookie(new Cookie(domain, currentAppCode, Environment.getSessionId(), path, null, isSecure)); // TSS = JSessionId
       }
	
	HttpMethod httpMethod = HttpClientUtil.getHttpMethod(appServer); // 创建HttpPost对象（等价于一个Post Http Request）
	try {
		// 请求
           int statusCode = client.executeMethod(httpMethod);
		if (statusCode == HttpStatus.SC_OK) {
			// 转发返回信息
			transmitResponse(appServer, response, client, httpMethod);
		} 
		else if ((statusCode == HttpStatus.SC_MOVED_TEMPORARILY)
				|| (statusCode == HttpStatus.SC_MOVED_PERMANENTLY)
				|| (statusCode == HttpStatus.SC_SEE_OTHER)
				|| (statusCode == HttpStatus.SC_TEMPORARY_REDIRECT)) {
		    
			dealWithRedirect(appServer, response, client, httpMethod);
		} 
		
	} finally {
		httpMethod.releaseConnection();
	}
}
 

/**
 * Executes an action or a command in SOLR using REST API 
 * 
 * @param httpClient HTTP Client to be used for the invocation
 * @param url Complete URL of SOLR REST API Endpoint
 * @return A JSON Object including SOLR response
 * @throws UnsupportedEncodingException
 */
protected JSONObject getOperation(HttpClient httpClient, String url) throws UnsupportedEncodingException 
{

    GetMethod get = new GetMethod(url);
    
    try {
        
        httpClient.executeMethod(get);
        if(get.getStatusCode() == HttpStatus.SC_MOVED_PERMANENTLY || get.getStatusCode() == HttpStatus.SC_MOVED_TEMPORARILY)
        {
            Header locationHeader = get.getResponseHeader("location");
            if (locationHeader != null)
            {
                String redirectLocation = locationHeader.getValue();
                get.setURI(new URI(redirectLocation, true));
                httpClient.executeMethod(get);
            }
        }
        if (get.getStatusCode() != HttpServletResponse.SC_OK)
        {
            throw new LuceneQueryParserException("Request failed " + get.getStatusCode() + " " + url.toString());
        }

        Reader reader = new BufferedReader(new InputStreamReader(get.getResponseBodyAsStream(), get.getResponseCharSet()));
        JSONObject json = new JSONObject(new JSONTokener(reader));
        return json;
        
    }
    catch (IOException | JSONException e) 
    {
        throw new AlfrescoRuntimeException(e.getMessage(), e);
    } 
    finally 
    {
        get.releaseConnection();
    }
}
 

protected JSONObject postQuery(HttpClient httpClient, String url, JSONObject body) throws UnsupportedEncodingException,
IOException, HttpException, URIException, JSONException
{
    PostMethod post = new PostMethod(url);
    if (body.toString().length() > DEFAULT_SAVEPOST_BUFFER)
    {
        post.getParams().setBooleanParameter(HttpMethodParams.USE_EXPECT_CONTINUE, true);
    }
    StringRequestEntity requestEntity = new StringRequestEntity(body.toString(), "application/json", "UTF-8");
    post.setRequestEntity(requestEntity);
    try
    {
        httpClient.executeMethod(post);
        if(post.getStatusCode() == HttpStatus.SC_MOVED_PERMANENTLY || post.getStatusCode() == HttpStatus.SC_MOVED_TEMPORARILY)
        {
            Header locationHeader = post.getResponseHeader("location");
            if (locationHeader != null)
            {
                String redirectLocation = locationHeader.getValue();
                post.setURI(new URI(redirectLocation, true));
                httpClient.executeMethod(post);
            }
        }
        if (post.getStatusCode() != HttpServletResponse.SC_OK)
        {
            throw new LuceneQueryParserException("Request failed " + post.getStatusCode() + " " + url.toString());
        }

        Reader reader = new BufferedReader(new InputStreamReader(post.getResponseBodyAsStream(), post.getResponseCharSet()));
        // TODO - replace with streaming-based solution e.g. SimpleJSON ContentHandler
        JSONObject json = new JSONObject(new JSONTokener(reader));
        return json;
    }
    finally
    {
        post.releaseConnection();
    }
}
 

/**
 * @param responseCode
 * @return
 */
public static boolean verifyResponseCode(final int responseCode) {
    switch (responseCode) {
        case HttpStatus.SC_OK:
        case HttpStatus.SC_MOVED_PERMANENTLY:
        case HttpStatus.SC_MOVED_TEMPORARILY:
            return true;
        default:
            return false;
    }
}
 

/**
 * @param responseCode
 * @return
 */
public static boolean verifyResponseCode(int responseCode) {
    switch (responseCode) {
        case HttpStatus.SC_OK:
        case HttpStatus.SC_MOVED_PERMANENTLY:
        case HttpStatus.SC_MOVED_TEMPORARILY:
            return true;
        default:
            return false;

    }
}
 

/**
*/
  @SuppressWarnings({ "unchecked" })
  @Override
  public boolean isValid(final FormItem formItem, final Map formContext) {
      boolean result;
      final TextElement textElement = (TextElement) formItem;

      if (StringHelper.containsNonWhitespace(textElement.getValue())) {

          // Use an HttpClient to fetch a profile information page from MSN.
          final HttpClient httpClient = HttpClientFactory.getHttpClientInstance();
          final HttpClientParams httpClientParams = httpClient.getParams();
          httpClientParams.setConnectionManagerTimeout(2500);
          httpClient.setParams(httpClientParams);
          final HttpMethod httpMethod = new GetMethod(MSN_NAME_VALIDATION_URL);
          final NameValuePair idParam = new NameValuePair(MSN_NAME_URL_PARAMETER, textElement.getValue());
          httpMethod.setQueryString(new NameValuePair[] { idParam });
          // Don't allow redirects since otherwise, we won't be able to get the correct status
          httpMethod.setFollowRedirects(false);
          try {
              // Get the user profile page
              httpClient.executeMethod(httpMethod);
              final int httpStatusCode = httpMethod.getStatusCode();
              // Looking at the HTTP status code tells us whether a user with the given MSN name exists.
              if (httpStatusCode == HttpStatus.SC_MOVED_PERMANENTLY) {
                  // If the user exists, we get a 301...
                  result = true;
              } else if (httpStatusCode == HttpStatus.SC_INTERNAL_SERVER_ERROR) {
                  // ...and if the user doesn't exist, MSN sends a 500.
                  textElement.setErrorKey("form.name.msn.error", null);
                  result = false;
              } else {
                  // For HTTP status codes other than 301 and 500 we will assume that the given MSN name is valid, but inform the user about this.
                  textElement.setExampleKey("form.example.msnname.notvalidated", null);
                  log.warn("MSN name validation: Expected HTTP status 301 or 500, but got " + httpStatusCode);
                  result = true;
              }
          } catch (final Exception e) {
              // In case of any exception, assume that the given MSN name is valid (The opposite would block easily upon network problems), and inform the user about
              // this.
              textElement.setExampleKey("form.example.msnname.notvalidated", null);
              log.warn("MSN name validation: Exception: " + e.getMessage());
              result = true;
          }
      } else {
          result = true;
      }
      return result;
  }
 

/**
*/
  @SuppressWarnings({ "unchecked" })
  @Override
  public boolean isValid(final FormItem formItem, final Map formContext) {
      boolean result;
      final TextElement textElement = (TextElement) formItem;

      if (StringHelper.containsNonWhitespace(textElement.getValue())) {

          // Use an HttpClient to fetch a profile information page from MSN.
          final HttpClient httpClient = HttpClientFactory.getHttpClientInstance();
          final HttpClientParams httpClientParams = httpClient.getParams();
          httpClientParams.setConnectionManagerTimeout(2500);
          httpClient.setParams(httpClientParams);
          final HttpMethod httpMethod = new GetMethod(MSN_NAME_VALIDATION_URL);
          final NameValuePair idParam = new NameValuePair(MSN_NAME_URL_PARAMETER, textElement.getValue());
          httpMethod.setQueryString(new NameValuePair[] { idParam });
          // Don't allow redirects since otherwise, we won't be able to get the correct status
          httpMethod.setFollowRedirects(false);
          try {
              // Get the user profile page
              httpClient.executeMethod(httpMethod);
              final int httpStatusCode = httpMethod.getStatusCode();
              // Looking at the HTTP status code tells us whether a user with the given MSN name exists.
              if (httpStatusCode == HttpStatus.SC_MOVED_PERMANENTLY) {
                  // If the user exists, we get a 301...
                  result = true;
              } else if (httpStatusCode == HttpStatus.SC_INTERNAL_SERVER_ERROR) {
                  // ...and if the user doesn't exist, MSN sends a 500.
                  textElement.setErrorKey("form.name.msn.error", null);
                  result = false;
              } else {
                  // For HTTP status codes other than 301 and 500 we will assume that the given MSN name is valid, but inform the user about this.
                  textElement.setExampleKey("form.example.msnname.notvalidated", null);
                  log.warn("MSN name validation: Expected HTTP status 301 or 500, but got " + httpStatusCode);
                  result = true;
              }
          } catch (final Exception e) {
              // In case of any exception, assume that the given MSN name is valid (The opposite would block easily upon network problems), and inform the user about
              // this.
              textElement.setExampleKey("form.example.msnname.notvalidated", null);
              log.warn("MSN name validation: Exception: " + e.getMessage());
              result = true;
          }
      } else {
          result = true;
      }
      return result;
  }