initialize Project

backend/app/src/Controllers/CaptchaController.php

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+<?php
+
+namespace App\Controllers;
+
+use App\lib\PCaptcha;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+
+class CaptchaController
+{
+    /**
+     * Generates and outputs a captcha image.
+     */
+    public function get(ServerRequestInterface $request, ResponseInterface $response): ResponseInterface
+    {
+        if (session_status() === PHP_SESSION_NONE) {
+            session_start();
+        }
+        $captcha = new PCaptcha();
+        $captcha->width = 200;
+        $captcha->hight = 50;
+        $captcha->leng = 6;
+
+        try {
+            $imageData = $captcha->get_captcha();
+        } catch (\Throwable $e) {
+            $response->getBody()->write("Captcha error: " . $e->getMessage());
+            return $response->withStatus(500)->withHeader('Content-Type', 'text/plain');
+        }
+
+        $response->getBody()->write($imageData);
+        return $response->withHeader('Content-Type', 'image/png');
+    }
+}