| 1 | NAME: |
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| 2 | |
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| 3 | Securimage - A PHP class for creating captcha images and audio with many options. |
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| 4 | |
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| 5 | VERSION: 3.0 |
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| 6 | |
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| 7 | AUTHOR: |
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| 8 | |
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| 9 | Drew Phillips <drew@drew-phillips.com> |
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| 10 | |
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| 11 | DOWNLOAD: |
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| 12 | |
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| 13 | The latest version can always be |
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| 14 | found at http://www.phpcaptcha.org |
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| 15 | |
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| 16 | DOCUMENTATION: |
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| 17 | |
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| 18 | Online documentation of the class, methods, and variables can |
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| 19 | be found at http://www.phpcaptcha.org/Securimage_Docs/ |
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| 20 | |
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| 21 | REQUIREMENTS: |
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| 22 | PHP 5.2 or greater |
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| 23 | GD 2.0 |
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| 24 | FreeType (Required, for TTF fonts) |
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| 25 | |
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| 26 | SYNOPSIS: |
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| 27 | |
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| 28 | require_once 'securimage.php'; |
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| 29 | |
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| 30 | $image = new Securimage(); |
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| 31 | |
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| 32 | $image->show(); |
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| 33 | |
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| 34 | // Code Validation |
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| 35 | |
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| 36 | $image = new Securimage(); |
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| 37 | if ($image->check($_POST['code']) == true) { |
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| 38 | echo "Correct!"; |
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| 39 | } else { |
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| 40 | echo "Sorry, wrong code."; |
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| 41 | } |
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| 42 | |
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| 43 | DESCRIPTION: |
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| 44 | |
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| 45 | What is Securimage? |
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| 46 | |
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| 47 | Securimage is a PHP class that is used to generate and validate CAPTCHA images. |
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| 48 | The classes uses an existing PHP session or creates its own if none is found to store the |
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| 49 | CAPTCHA code. Variables within the class are used to control the style and display of the image. |
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| 50 | The class supports TTF fonts and effects for strengthening the security of the image. |
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| 51 | An audible code can also be streamed to the browser for visually impared users. |
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| 52 | |
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| 53 | |
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| 54 | COPYRIGHT: |
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| 55 | Copyright (c) 2011 Drew Phillips |
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| 56 | All rights reserved. |
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| 57 | |
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| 58 | Redistribution and use in source and binary forms, with or without modification, |
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| 59 | are permitted provided that the following conditions are met: |
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| 60 | |
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| 61 | - Redistributions of source code must retain the above copyright notice, |
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| 62 | this list of conditions and the following disclaimer. |
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| 63 | - Redistributions in binary form must reproduce the above copyright notice, |
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| 64 | this list of conditions and the following disclaimer in the documentation |
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| 65 | and/or other materials provided with the distribution. |
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| 66 | |
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| 67 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 68 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 69 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 70 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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| 71 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 72 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 73 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 74 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 75 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 76 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 77 | POSSIBILITY OF SUCH DAMAGE. |
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| 78 | |
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| 79 | ----------------------------------------------------------------------------- |
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| 80 | Flash code created for Securimage by Mario Romero (animario@hotmail.com) |
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| 81 | Many thanks for releasing this to the project! |
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| 82 | |
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| 83 | ------------------------------------------------------------------------------ |
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| 84 | Portions of Securimage contain code from Han-Kwang Nienhuys' PHP captcha |
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| 85 | |
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| 86 | Han-Kwang Nienhuys' PHP captcha |
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| 87 | Copyright June 2007 |
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| 88 | |
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| 89 | This copyright message and attribution must be preserved upon |
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| 90 | modification. Redistribution under other licenses is expressly allowed. |
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| 91 | Other licenses include GPL 2 or higher, BSD, and non-free licenses. |
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| 92 | The original, unrestricted version can be obtained from |
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| 93 | http://www.lagom.nl/linux/hkcaptcha/ |
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| 94 | |
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| 95 | ------------------------------------------------------------------------------- |
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| 96 | AHGBold.ttf (AlteHaasGroteskBold.ttf) font was created by Yann Le Coroller and is distributed as freeware |
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| 97 | |
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| 98 | Alte Haas Grotesk is a typeface that look like an helvetica printed in an old Muller-Brockmann Book. |
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| 99 | |
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| 100 | These fonts are freeware and can be distributed as long as they are |
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| 101 | together with this text file. |
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| 102 | |
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| 103 | I would appreciate very much to see what you have done with it anyway. |
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| 104 | |
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| 105 | yann le coroller |
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| 106 | www.yannlecoroller.com |
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| 107 | yann@lecoroller.com |
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| 108 | |
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