first

2024-05-20 15:37:46 +03:00
commit 00b7dbd0b7
10404 changed files with 3285853 additions and 0 deletions
--- a/wp-content/plugins/advanced-google-recaptcha/libs/captcha.php
+++ b/wp-content/plugins/advanced-google-recaptcha/libs/captcha.php
@ -0,0 +1,109 @@
+<?php
+/**
+ * WP Captcha
+ * https://getwpcaptcha.com/
+ * (c) WebFactory Ltd, 2022 - 2023, www.webfactoryltd.com
+ */
+
+class WPCaptcha_Captcha {
+  // convert HEX(HTML) color notation to RGB
+  static function hex2rgb($color) {
+    if ($color[0] == '#') {
+      $color = substr($color, 1);
+    }
+
+    if (strlen($color) == 6) {
+        list($r, $g, $b) = array($color[0].$color[1],
+                                 $color[2].$color[3],
+                                 $color[4].$color[5]);
+    } elseif (strlen($color) == 3) {
+        list($r, $g, $b) = array($color[0].$color[0], $color[1].$color[1], $color[2].$color[2]);
+    } else {
+        return array(255, 255, 255);
+    }
+
+    $r = hexdec($r);
+    $g = hexdec($g);
+    $b = hexdec($b);
+
+    return array($r, $g, $b);
+  } // html2rgb
+
+
+  // output captcha image
+  static function generate() {
+    $a = rand(0, (int) 10);
+    $b = rand(0, (int) 10);
+    $color = @$_GET['color'];
+    $color = urldecode($color);
+    if(isset($_GET['id'])){
+        $captcha_cookie_name = 'wpcaptcha_captcha_' . intval($_GET['id']);
+    } else{
+        $captcha_cookie_name = 'wpcaptcha_captcha';
+    }
+
+    if ($a > $b) {
+      $out = "$a - $b";
+      $captcha_value = $a - $b;
+
+    } else {
+      $out = "$a + $b";
+      $captcha_value = $a + $b;
+    }
+
+    setcookie($captcha_cookie_name, $captcha_value, time() + 60 * 5, '/');
+
+    $font   = 5;
+    $width  = ImageFontWidth($font) * strlen($out);
+    $height = ImageFontHeight($font);
+    $im     = ImageCreate($width, $height);
+
+    $x = imagesx($im) - $width ;
+    $y = imagesy($im) - $height;
+
+    $white = imagecolorallocate ($im, 255, 255, 255);
+    $gray = imagecolorallocate ($im, 66, 66, 66);
+    $black = imagecolorallocate ($im, 0, 0, 0);
+    $trans_color = $white; //transparent color
+
+    if ($color) {
+      $color = self::hex2rgb($color);
+      $new_color = imagecolorallocate ($im, $color[0], $color[1], $color[2]);
+      imagefill($im, 1, 1, $new_color);
+    } else {
+      imagecolortransparent($im, $trans_color);
+    }
+
+    imagestring ($im, $font, $x, $y, $out, $black);
+
+    // always add noise
+    if (1 == 1) {
+      $color_min = 100;
+      $color_max = 200;
+      $rand1 = imagecolorallocate ($im, rand($color_min,$color_max), rand($color_min,$color_max), rand($color_min,$color_max));
+      $rand2 = imagecolorallocate ($im, rand($color_min,$color_max), rand($color_min,$color_max), rand($color_min,$color_max));
+      $rand3 = imagecolorallocate ($im, rand($color_min,$color_max), rand($color_min,$color_max), rand($color_min,$color_max));
+      $rand4 = imagecolorallocate ($im, rand($color_min,$color_max), rand($color_min,$color_max), rand($color_min,$color_max));
+      $rand5 = imagecolorallocate ($im, rand($color_min,$color_max), rand($color_min,$color_max), rand($color_min,$color_max));
+                
+      $style = array($rand1, $rand2, $rand3, $rand4, $rand5);
+      imagesetstyle($im, $style);
+      imageline($im, rand(0, $width), 0, rand(0, $width), $height, IMG_COLOR_STYLED);
+      imageline($im, rand(0, $width), 0, rand(0, $width), $height, IMG_COLOR_STYLED);
+      imageline($im, rand(0, $width), 0, rand(0, $width), $height, IMG_COLOR_STYLED);
+      imageline($im, rand(0, $width), 0, rand(0, $width), $height, IMG_COLOR_STYLED);
+      imageline($im, rand(0, $width), 0, rand(0, $width), $height, IMG_COLOR_STYLED);
+    }
+
+    header('Cache-Control: no-cache, must-revalidate');
+    header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
+    header('Content-type: image/gif');
+    imagegif($im);
+    die();
+  } // create
+} // WPCaptcha_Captcha
+
+
+if (isset($_GET['wpcaptcha-generate-image'])) {
+  WPCaptcha_Captcha::generate();
+}