first commit

extension/opencart/catalog/controller/captcha/basic.php

@@ -0,0 +1,70 @@
+<?php
+namespace Opencart\Catalog\Controller\Extension\Opencart\Captcha;
+/**
+ * Class Basic
+ *
+ * @package
+ */
+class Basic extends \Opencart\System\Engine\Controller {
+	/**
+	 * @return string
+	 */
+	public function index(): string {
+		$this->load->language('extension/opencart/captcha/basic');
+
+		$data['route'] = (string)$this->request->get['route'];
+
+		$this->session->data['captcha'] = substr(oc_token(100), rand(0, 94), 6);
+
+		return $this->load->view('extension/opencart/captcha/basic', $data);
+	}
+
+	/**
+	 * @return string
+	 */
+	public function validate(): string {
+		$this->load->language('extension/opencart/captcha/basic');
+
+		if (!isset($this->session->data['captcha']) || !isset($this->request->post['captcha']) || ($this->session->data['captcha'] != $this->request->post['captcha'])) {
+			return $this->language->get('error_captcha');
+		} else {
+			return '';
+		}
+	}
+
+	/**
+	 * @return void
+	 */
+	public function captcha(): void {
+		$image  = imagecreatetruecolor(150, 35);
+
+		$width  = imagesx($image);
+		$height = imagesy($image);
+
+		$black  = imagecolorallocate($image, 0, 0, 0);
+		$white  = imagecolorallocate($image, 255, 255, 255);
+		$red    = imagecolorallocatealpha($image, 255, 0, 0, 75);
+		$green  = imagecolorallocatealpha($image, 0, 255, 0, 75);
+		$blue   = imagecolorallocatealpha($image, 0, 0, 255, 75);
+
+		imagefilledrectangle($image, 0, 0, $width, $height, $white);
+		imagefilledellipse($image, ceil(rand(5, 145)), ceil(rand(0, 35)), 30, 30, $red);
+		imagefilledellipse($image, ceil(rand(5, 145)), ceil(rand(0, 35)), 30, 30, $green);
+		imagefilledellipse($image, ceil(rand(5, 145)), ceil(rand(0, 35)), 30, 30, $blue);
+		imagefilledrectangle($image, 0, 0, $width, 0, $black);
+		imagefilledrectangle($image, $width - 1, 0, $width - 1, $height - 1, $black);
+		imagefilledrectangle($image, 0, 0, 0, $height - 1, $black);
+		imagefilledrectangle($image, 0, $height - 1, $width, $height - 1, $black);
+
+		imagestring($image, 10, intval(($width - (strlen($this->session->data['captcha']) * 9)) / 2), intval(($height - 15) / 2), $this->session->data['captcha'], $black);
+
+		header('Content-type: image/jpeg');
+		header('Cache-Control: no-cache');
+		header('Expires: Sat, 26 Jul 1997 05:00:00 GMT');
+
+		imagejpeg($image);
+
+		imagedestroy($image);
+		exit();
+	}
+}