aboutsummaryrefslogtreecommitdiff
path: root/captcha.php
diff options
context:
space:
mode:
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
new file mode 100644
index 000000000..085641c79
--- /dev/null
+++ b/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);
+}