content:  /*
   *  Copyright Beijing 58 Information Technology Co.,Ltd.
   *
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   */
  
   package com.bj58.argo.thirdparty;
  
  import javax.servlet.http.HttpServletRequest;
  
  /**
   * @author Service Platform Architecture Team (spat@58.com)
   */
  public class HttpUtils {
  	
      /**
       * Part of HTTP content type header.
       */
      public static final String MULTIPART = "multipart/";
  
      /**
       * Utility method that determines whether the currentRequest contains multipart
       * content.
       *
       * @param request The servlet currentRequest to be evaluated. Must be non-null.
       *
       * @return <code>true</code> if the currentRequest is multipart;
       *         <code>false</code> otherwise.
       *         
       * @author Sean C. Sullivan
       */
      public static final boolean isMultipartContent(
              HttpServletRequest request) {
          if (!"post".equals(request.getMethod().toLowerCase())) {
              return false;
          }
          String contentType = request.getContentType();
          if (contentType == null) {
              return false;
          }
          if (contentType.toLowerCase().startsWith(MULTIPART)) {
              return true;
          }
          return false;
      }
  }
  