/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Url Classifier code
 *
 * The Initial Developer of the Original Code is
 * Google Inc.
 * Portions created by the Initial Developer are Copyright (C) 2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef nsUrlClassifierUtils_h_
#define nsUrlClassifierUtils_h_

#include "nsIUrlClassifierUtils.h"

class nsUrlClassifierUtils : public nsIUrlClassifierUtils
{
public:
  nsUrlClassifierUtils();
  ~nsUrlClassifierUtils() {};

  NS_DECL_ISUPPORTS
  NS_DECL_NSIURLCLASSIFIERUTILS

  // This function will encode all "special" characters in typical url encoding,
  // that is %hh where h is a valid hex digit.  The characters which are encoded
  // by this function are any ascii characters under 32(control characters and
  // space), 37(%), and anything 127 or above (special characters).  Url is the
  // string to encode, ret is the encoded string.  Function returns true if
  // ret != url.
  PRBool SpecialEncode(const nsACString & url, nsACString & _retval);

private:
  // Disallow copy constructor
  nsUrlClassifierUtils(const nsUrlClassifierUtils&);

  // Function to tell if we should encode a character.
  PRBool ShouldURLEscape(const unsigned char c) const;
};

#endif // nsUrlClassifierUtils_h_
