diff options
Diffstat (limited to 'mod/captcha/captcha.php')
-rw-r--r-- | mod/captcha/captcha.php | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/mod/captcha/captcha.php b/mod/captcha/captcha.php new file mode 100644 index 000000000..085641c79 --- /dev/null +++ b/mod/captcha/captcha.php @@ -0,0 +1,34 @@ +<?php +/** + * Elgg captcha plugin graphics file generator + * + * @package ElggCaptcha + */ + +$token = get_input('captcha_token'); + +// Output captcha +if ($token) { + // Set correct header + header("Content-type: image/jpeg"); + + // Generate captcha + $captcha = captcha_generate_captcha($token); + + // Pick a random background image + $n = rand(1, elgg_get_config('captcha_num_bg')); + $image = imagecreatefromjpeg(elgg_get_plugins_path() . "captcha/backgrounds/bg$n.jpg"); + + // Create a colour (black so its not a simple matter of masking out one colour and ocring the rest) + $colour = imagecolorallocate($image, 0,0,0); + + // Write captcha to image + //imagestring($image, 5, 30, 4, $captcha, $black); + imagettftext($image, 30, 0, 10, 30, $colour, elgg_get_plugins_path() . "captcha/fonts/1.ttf", $captcha); + + // Output image + imagejpeg($image); + + // Free memory + imagedestroy($image); +} |