Konstantin
58 lines
2.0 KiB
PHP
58 lines
2.0 KiB
PHP
<?php
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class ControllerExtensionCaptchaBasic extends Controller {
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public function index($error = array()) {
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$this->load->language('extension/captcha/basic');
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if (isset($error['captcha'])) {
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$data['error_captcha'] = $error['captcha'];
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} else {
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$data['error_captcha'] = '';
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}
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$data['route'] = $this->request->get['route'];
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return $this->load->view('extension/captcha/basic', $data);
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}
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public function validate() {
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$this->load->language('extension/captcha/basic');
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if (empty($this->session->data['captcha']) || ($this->session->data['captcha'] != $this->request->post['captcha'])) {
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return $this->language->get('error_captcha');
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}
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}
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public function captcha() {
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$this->session->data['captcha'] = substr(sha1(mt_rand()), 17, 6);
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$image = imagecreatetruecolor(150, 35);
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$width = imagesx($image);
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$height = imagesy($image);
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$black = imagecolorallocate($image, 0, 0, 0);
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$white = imagecolorallocate($image, 255, 255, 255);
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$red = imagecolorallocatealpha($image, 255, 0, 0, 75);
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$green = imagecolorallocatealpha($image, 0, 255, 0, 75);
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$blue = imagecolorallocatealpha($image, 0, 0, 255, 75);
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imagefilledrectangle($image, 0, 0, $width, $height, $white);
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imagefilledellipse($image, ceil(rand(5, 145)), ceil(rand(0, 35)), 30, 30, $red);
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imagefilledellipse($image, ceil(rand(5, 145)), ceil(rand(0, 35)), 30, 30, $green);
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imagefilledellipse($image, ceil(rand(5, 145)), ceil(rand(0, 35)), 30, 30, $blue);
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imagefilledrectangle($image, 0, 0, $width, 0, $black);
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imagefilledrectangle($image, $width - 1, 0, $width - 1, $height - 1, $black);
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imagefilledrectangle($image, 0, 0, 0, $height - 1, $black);
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imagefilledrectangle($image, 0, $height - 1, $width, $height - 1, $black);
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imagestring($image, 10, intval(($width - (strlen($this->session->data['captcha']) * 9)) / 2), intval(($height - 15) / 2), $this->session->data['captcha'], $black);
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header('Content-type: image/jpeg');
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imagejpeg($image);
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imagedestroy($image);
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exit();
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}
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}
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