NAME:
Securimage - A PHP class for creating captcha images and audio with many options.
VERSION: 3.0
AUTHOR:
Drew Phillips <drew@drew-phillips.com>
DOWNLOAD:
The latest version can always be
found at http://www.phpcaptcha.org
DOCUMENTATION:
Online documentation of the class, methods, and variables can
be found at http://www.phpcaptcha.org/Securimage_Docs/
REQUIREMENTS:
PHP 5.2 or greater
GD 2.0
FreeType (Required, for TTF fonts)
SYNOPSIS:
require_once 'securimage.php';
$image = new Securimage();
$image->show();
// Code Validation
$image = new Securimage();
if ($image->check($_POST['code']) == true) {
echo "Correct!";
} else {
echo "Sorry, wrong code.";
}
DESCRIPTION:
What is Securimage?
Securimage is a PHP class that is used to generate and validate CAPTCHA images.
The classes uses an existing PHP session or creates its own if none is found to store the
CAPTCHA code. Variables within the class are used to control the style and display of the image.
The class supports TTF fonts and effects for strengthening the security of the image.
An audible code can also be streamed to the browser for visually impared users.
COPYRIGHT:
Copyright (c) 2012 Drew Phillips
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
- 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.
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.
-----------------------------------------------------------------------------
Flash code created for Securimage by Mario Romero (animario@hotmail.com)
Many thanks for releasing this to the project!
------------------------------------------------------------------------------
Portions of Securimage contain code from Han-Kwang Nienhuys' PHP captcha
Han-Kwang Nienhuys' PHP captcha
Copyright June 2007
This copyright message and attribution must be preserved upon
modification. Redistribution under other licenses is expressly allowed.
Other licenses include GPL 2 or higher, BSD, and non-free licenses.
The original, unrestricted version can be obtained from
http://www.lagom.nl/linux/hkcaptcha/
-------------------------------------------------------------------------------
AHGBold.ttf (AlteHaasGroteskBold.ttf) font was created by Yann Le Coroller and is distributed as freeware
Alte Haas Grotesk is a typeface that look like an helvetica printed in an old Muller-Brockmann Book.
These fonts are freeware and can be distributed as long as they are
together with this text file.
I would appreciate very much to see what you have done with it anyway.
yann le coroller
www.yannlecoroller.com
yann@lecoroller.com
-------------------------------------------------------------------------------
Portions of securimage_play.swf use the PopForge flash library for playing audio
/**
* Copyright(C) 2007 Andre Michelle and Joa Ebert
*
* PopForge is an ActionScript3 code sandbox developed by Andre Michelle and Joa Ebert
* http://sandbox.popforge.de
*
* PopforgeAS3Audio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* PopforgeAS3Audio 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*/