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authorSilvio Rhatto <rhatto@riseup.net>2014-03-15 14:53:35 -0300
committerSilvio Rhatto <rhatto@riseup.net>2014-03-15 14:53:35 -0300
commitcb346ff43a63f93ff5275502638c51a4653fac7d (patch)
tree377272fd09d298870124b2537ce200a62b3e75b3 /captcha.php
downloadelgg-cb346ff43a63f93ff5275502638c51a4653fac7d.tar.gz
elgg-cb346ff43a63f93ff5275502638c51a4653fac7d.tar.bz2
Squashed 'mod/captcha/' content from commit c7ac34e
git-subtree-dir: mod/captcha git-subtree-split: c7ac34e65fed6e9fc08f85dc4734b29c4fd51147
Diffstat (limited to 'captcha.php')
-rw-r--r--captcha.php34
1 files changed, 34 insertions, 0 deletions
diff --git a/captcha.php b/captcha.php
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+<?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);
+}