package fi.iki.elonen;
   
   /*
    * #%L
    * apache-fileupload-integration
    * %%
    * Copyright (C) 2012 - 2015 nanohttpd
    * %%
    * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   * 
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   * 
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   * 
   * 3. Neither the name of the nanohttpd nor the names of its contributors
   *    may be used to endorse or promote products derived from this software without
   *    specific prior written permission.
   * 
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
   * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
   * OF THE POSSIBILITY OF SUCH DAMAGE.
   * #L%
   */
  
  import static fi.iki.elonen.NanoHTTPD.Method.POST;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.commons.fileupload.FileItem;
  import org.apache.commons.fileupload.FileItemFactory;
  import org.apache.commons.fileupload.FileItemIterator;
  import org.apache.commons.fileupload.FileUpload;
  import org.apache.commons.fileupload.FileUploadBase;
  import org.apache.commons.fileupload.FileUploadException;
  import org.apache.commons.fileupload.UploadContext;
  
  /**
   * @author victor & ritchieGitHub
   */
  public class NanoFileUpload extends FileUpload {
  
      public static class NanoHttpdContext implements UploadContext {
  
          private NanoHTTPD.IHTTPSession session;
  
          public NanoHttpdContext(NanoHTTPD.IHTTPSession session) {
              this.session = session;
          }
  
          @Override
          public long contentLength() {
              long size;
              try {
                  String cl1 = session.getHeaders().get("content-length");
                  size = Long.parseLong(cl1);
              } catch (NumberFormatException var4) {
                  size = -1L;
              }
  
              return size;
          }
  
          @Override
          public String getCharacterEncoding() {
              return "UTF-8";
          }
  
          @Override
          public String getContentType() {
              return this.session.getHeaders().get("content-type");
          }
  
          @Override
          public int getContentLength() {
              return (int) contentLength();
          }
  
          @Override
          public InputStream getInputStream() throws IOException {
              return session.getInputStream();
          }
      }
  
      public static final boolean isMultipartContent(NanoHTTPD.IHTTPSession session) {
          return session.getMethod() == POST && FileUploadBase.isMultipartContent(new NanoHttpdContext(session));
     }
 
     public NanoFileUpload(FileItemFactory fileItemFactory) {
         super(fileItemFactory);
     }
 
     public List parseRequest(NanoHTTPD.IHTTPSession session) throws FileUploadException {
         return this.parseRequest(new NanoHttpdContext(session));
     }
 
     public Map> parseParameterMap(NanoHTTPD.IHTTPSession session) throws FileUploadException {
         return this.parseParameterMap(new NanoHttpdContext(session));
     }
 
     public FileItemIterator getItemIterator(NanoHTTPD.IHTTPSession session) throws FileUploadException, IOException {
         return super.getItemIterator(new NanoHttpdContext(session));
     }
 
 }