source: extensions/CryptograPHP/securimage/README.txt @ 26554

Revision 26554, 7.5 KB checked in by mistic100, 6 years ago (diff)

update Securimage to 3.5.1, new font, new preset, allow to use backgrounds

Line 
1NAME:
2
3    Securimage - A PHP class for creating captcha images and audio with many options.
4
5VERSION: 3.5.1
6
7AUTHOR:
8
9    Drew Phillips <drew@drew-phillips.com>
10
11DOWNLOAD:
12
13    The latest version can always be
14    found at http://www.phpcaptcha.org
15
16DOCUMENTATION:
17
18    Online documentation of the class, methods, and variables can
19    be found at http://www.phpcaptcha.org/Securimage_Docs/
20
21REQUIREMENTS:
22    PHP 5.2 or greater
23    GD  2.0
24    FreeType (Required, for TTF fonts)
25    PDO (if using Sqlite, MySQL, or PostgreSQL)
26
27SYNOPSIS:
28
29    require_once 'securimage.php';
30
31    $image = new Securimage();
32
33    $image->show();
34
35    // Code Validation
36
37    $image = new Securimage();
38    if ($image->check($_POST['code']) == true) {
39      echo "Correct!";
40    } else {
41      echo "Sorry, wrong code.";
42    }
43
44DESCRIPTION:
45
46    What is Securimage?
47
48    Securimage is a PHP class that is used to generate and validate CAPTCHA images.
49    The classes uses an existing PHP session or creates its own if none is found to store the
50    CAPTCHA code.  Variables within the class are used to control the style and display of the image.
51    The class supports TTF fonts and effects for strengthening the security of the image.
52    An audible code can also be streamed to the browser for visually impared users.
53
54
55COPYRIGHT:
56    Copyright (c) 2013 Drew Phillips
57    All rights reserved.
58
59    Redistribution and use in source and binary forms, with or without modification,
60    are permitted provided that the following conditions are met:
61
62    - Redistributions of source code must retain the above copyright notice,
63      this list of conditions and the following disclaimer.
64    - Redistributions in binary form must reproduce the above copyright notice,
65      this list of conditions and the following disclaimer in the documentation
66      and/or other materials provided with the distribution.
67
68    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
69    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
70    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
71    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
72    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
73    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
74    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
75    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
76    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
77    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
78    POSSIBILITY OF SUCH DAMAGE.
79
80    -----------------------------------------------------------------------------
81    The WavFile.php class used in Securimage by Drew Phillips and Paul Voegler is
82    used under the BSD License.  See WavFile.php for details.
83    Many thanks to Paul Voegler (http://www.voegler.eu/) for contributing to
84    Securimage.
85
86    -----------------------------------------------------------------------------
87    Flash code created for Securimage by Age Bosma & Mario Romero (animario@hotmail.com)
88    Many thanks for releasing this to the project!
89
90    ------------------------------------------------------------------------------
91    Portions of Securimage contain code from Han-Kwang Nienhuys' PHP captcha
92       
93    Han-Kwang Nienhuys' PHP captcha
94    Copyright June 2007
95   
96    This copyright message and attribution must be preserved upon
97    modification. Redistribution under other licenses is expressly allowed.
98    Other licenses include GPL 2 or higher, BSD, and non-free licenses.
99    The original, unrestricted version can be obtained from
100    http://www.lagom.nl/linux/hkcaptcha/
101   
102    -------------------------------------------------------------------------------
103    AHGBold.ttf (AlteHaasGroteskBold.ttf) font was created by Yann Le Coroller and is distributed as freeware
104   
105    Alte Haas Grotesk is a typeface that look like an helvetica printed in an old Muller-Brockmann Book.
106   
107    These fonts are freeware and can be distributed as long as they are
108    together with this text file.
109   
110    I would appreciate very much to see what you have done with it anyway.
111   
112    yann le coroller
113    www.yannlecoroller.com
114    yann@lecoroller.com
115
116    -------------------------------------------------------------------------------
117    Portions of securimage_play.swf use the PopForge flash library for playing audio
118
119    /**
120     * Copyright(C) 2007 Andre Michelle and Joa Ebert
121     *
122     * PopForge is an ActionScript3 code sandbox developed by Andre Michelle and Joa Ebert
123     * http://sandbox.popforge.de
124     *
125     * PopforgeAS3Audio is free software; you can redistribute it and/or modify
126     * it under the terms of the GNU General Public License as published by
127     * the Free Software Foundation; either version 3 of the License, or
128     * (at your option) any later version.
129     *
130     * PopforgeAS3Audio is distributed in the hope that it will be useful,
131     * but WITHOUT ANY WARRANTY; without even the implied warranty of
132     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
133     * GNU General Public License for more details.
134     *
135     * You should have received a copy of the GNU General Public License
136     * along with this program. If not, see <http://www.gnu.org/licenses/>
137     */
138     
139     -------------------------------------------------------------------------------
140     Some graphics used are from the Humility Icon Pack by WorLord
141
142     License: GNU/GPL (http://findicons.com/pack/1723/humility)
143     http://findicons.com/icon/192558/gnome_volume_control
144     http://findicons.com/icon/192562/gtk_refresh
145
146     -------------------------------------------------------------------------------
147     Background noise sound files are from SoundJay.com
148     http://www.soundjay.com/tos.html
149     
150     All sound effects on this website are created by us and protected under
151     the copyright laws, international treaty provisions and other applicable
152     laws. By downloading sounds, music or any material from this site implies
153     that you have read and accepted these terms and conditions:
154
155     Sound Effects
156     You are allowed to use the sounds free of charge and royalty free in your
157     projects (such as films, videos, games, presentations, animations, stage
158     plays, radio plays, audio books, apps) be it for commercial or
159     non-commercial purposes.
160   
161     But you are NOT allowed to
162     - post the sounds (as sound effects or ringtones) on any website for
163       others to download, copy or use
164     - use them as a raw material to create sound effects or ringtones that
165       you will sell, distribute or offer for downloading
166     - sell, re-sell, license or re-license the sounds (as individual sound
167       effects or as a sound effects library) to anyone else
168     - claim the sounds as yours
169     - link directly to individual sound files
170     - distribute the sounds in apps or computer programs that are clearly
171       sound related in nature (such as sound machine, sound effect
172       generator, ringtone maker, funny sounds app, sound therapy app, etc.)
173       or in apps or computer programs that use the sounds as the program's
174       sound resource library for other people's use (such as animation
175       creator, digital book creator, song maker software, etc.). If you are
176       developing such computer programs, contact us for licensing options.
177   
178     If you use the sound effects, please consider giving us a credit and
179     linking back to us but it's not required.
180     
181     
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