hCaptcha Integration

Core/Objects/Captcha/CaptchaProvider.class.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace Core\Objects\Captcha;
+
+use Core\Objects\ApiObject;
+
+abstract class CaptchaProvider extends ApiObject {
+
+  const NONE = "none";
+  const RECAPTCHA = "recaptcha";
+  const HCAPTCHA = "hcaptcha";
+
+  const PROVIDERS = [self::NONE, self::RECAPTCHA, self::HCAPTCHA];
+
+  private string $siteKey;
+  private string $secretKey;
+  protected string $error;
+
+  public function __construct(string $siteKey, string $secretKey) {
+    $this->siteKey = $siteKey;
+    $this->secretKey = $secretKey;
+    $this->error = "";
+  }
+
+  public function getSiteKey(): string {
+    return $this->siteKey;
+  }
+
+  public function getError(): string {
+    return $this->error;
+  }
+
+  public static function isValid(string $type): bool {
+    return in_array($type, [self::RECAPTCHA, self::HCAPTCHA]);
+  }
+
+  public abstract function verify(string $captcha, string $action): bool;
+
+  public abstract function getName(): string;
+
+  public function jsonSerialize(): array {
+    return [
+      "name" => $this->getName(),
+      "siteKey" => $this->getSiteKey(),
+    ];
+  }
+
+  protected function performVerifyRequest(string $url, string $captcha) {
+    $params = [
+      "secret" => $this->secretKey,
+      "response" => $captcha
+    ];
+
+    $ch = curl_init();
+    curl_setopt($ch, CURLOPT_URL, $url);
+    curl_setopt($ch, CURLOPT_POST, 1);
+    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
+    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+    $response = @json_decode(curl_exec($ch), true);
+    curl_close($ch);
+
+    return $response;
+  }
+}