content: /* jcifs smb client library in Java
   * Copyright (C) 2000  "Michael B. Allen" <jcifs at samba dot org>
   * 
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   * 
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   * 
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package jcifs.smb;
  
  
  import java.io.IOException;
  import java.net.URL;
  import java.net.URLConnection;
  import java.net.URLStreamHandler;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import jcifs.CIFSContext;
  import jcifs.SmbConstants;
  import jcifs.context.SingletonContext;
  
  
  /**
   * URL handler for transparent smb:// URL handling
   * 
   */
  public class Handler extends URLStreamHandler {
  
      private static final Logger log = LoggerFactory.getLogger(Handler.class);
      private CIFSContext transportContext;
  
  
      /**
       * 
       */
      public Handler () {}
  
  
      /**
       * @param tc
       */
      public Handler ( CIFSContext tc ) {
          this.transportContext = tc;
      }
  
  
      @Override
      protected int getDefaultPort () {
          return SmbConstants.DEFAULT_PORT;
      }
  
  
      @Override
      public URLConnection openConnection ( URL u ) throws IOException {
          if ( log.isDebugEnabled() ) {
              log.debug("Opening file " + u);
          }
          return new SmbFile(u, getTransportContext());
      }
  
  
      /**
       * @return
       */
      private CIFSContext getTransportContext () {
          if ( this.transportContext == null ) {
              this.transportContext = SingletonContext.getInstance();
          }
          return this.transportContext;
      }
  
  
      @Override
      protected void parseURL ( URL u, String spec, int start, int limit ) {
          String host = u.getHost();
          String path, ref;
          int port;
  
          if ( spec.equals("smb://") ) {
              spec = "smb:////";
              limit += 2;
          }
          else if ( spec.startsWith("smb://") == false && host != null && host.length() == 0 ) {
              spec = "//" + spec;
              limit += 2;
          }
          super.parseURL(u, spec, start, limit);
          path = u.getPath();
          ref = u.getRef();
          if ( ref != null ) {
              path += '#' + ref;
          }
          port = u.getPort();
          if ( port == -1 ) {
              port = getDefaultPort();
          }
          setURL(u, "smb", u.getHost(), port, u.getAuthority(), u.getUserInfo(), path, u.getQuery(), null);
      }
  }
  