1
0
mirror of https://github.com/vichan-devel/vichan.git synced 2024-12-24 21:35:02 +01:00
vichan/inc/service/captcha-queries.php
2024-10-04 01:13:12 +02:00

144 lines
3.9 KiB
PHP

<?php // Verify captchas server side.
namespace Vichan\Service;
use Vichan\Data\Driver\HttpDriver;
defined('TINYBOARD') or exit;
class ReCaptchaQuery implements RemoteCaptchaQuery {
private HttpDriver $http;
private string $secret;
/**
* Creates a new ReCaptchaQuery using the google recaptcha service.
*
* @param HttpDriver $http The http client.
* @param string $secret Server side secret.
* @return ReCaptchaQuery A new ReCaptchaQuery query instance.
*/
public function __construct(HttpDriver $http, string $secret) {
$this->http = $http;
$this->secret = $secret;
}
public function responseField(): string {
return 'g-recaptcha-response';
}
public function verify(string $response, ?string $remote_ip): bool {
$data = [
'secret' => $this->secret,
'response' => $response
];
if ($remote_ip !== null) {
$data['remoteip'] = $remote_ip;
}
$ret = $this->http->requestGet('https://www.google.com/recaptcha/api/siteverify', $data);
$resp = json_decode($ret, true, 16, JSON_THROW_ON_ERROR);
return isset($resp['success']) && $resp['success'];
}
}
class HCaptchaQuery implements RemoteCaptchaQuery {
private HttpDriver $http;
private string $secret;
private string $sitekey;
/**
* Creates a new HCaptchaQuery using the hCaptcha service.
*
* @param HttpDriver $http The http client.
* @param string $secret Server side secret.
* @return HCaptchaQuery A new hCaptcha query instance.
*/
public function __construct(HttpDriver $http, string $secret, string $sitekey) {
$this->http = $http;
$this->secret = $secret;
$this->sitekey = $sitekey;
}
public function responseField(): string {
return 'h-captcha-response';
}
public function verify(string $response, ?string $remote_ip): bool {
$data = [
'secret' => $this->secret,
'response' => $response,
'sitekey' => $this->sitekey
];
if ($remote_ip !== null) {
$data['remoteip'] = $remote_ip;
}
$ret = $this->http->requestGet('https://hcaptcha.com/siteverify', $data);
$resp = json_decode($ret, true, 16, JSON_THROW_ON_ERROR);
return isset($resp['success']) && $resp['success'];
}
}
interface RemoteCaptchaQuery {
/**
* Name of the response field in the form data expected by the implementation.
*
* @return string The name of the field.
*/
public function responseField(): string;
/**
* Checks if the user at the remote ip passed the captcha.
*
* @param string $response User provided response.
* @param ?string $remote_ip User ip. Leave to null to only check the response value.
* @return bool Returns true if the user passed the captcha.
* @throws RuntimeException|JsonException Throws on IO errors or if it fails to decode the answer.
*/
public function verify(string $response, ?string $remote_ip): bool;
}
class NativeCaptchaQuery {
private HttpDriver $http;
private string $domain;
private string $provider_check;
private string $extra;
/**
* @param HttpDriver $http The http client.
* @param string $domain The server's domain.
* @param string $provider_check Path to the endpoint.
* @param string $extra Extra http parameters.
*/
function __construct(HttpDriver $http, string $domain, string $provider_check, string $extra) {
$this->http = $http;
$this->domain = $domain;
$this->provider_check = $provider_check;
$this->extra = $extra;
}
/**
* Checks if the user at the remote ip passed the native vichan captcha.
*
* @param string $user_text Remote user's text input.
* @param string $user_cookie Remote user cookie.
* @return bool Returns true if the user passed the check.
* @throws RuntimeException Throws on IO errors.
*/
public function verify(string $user_text, string $user_cookie): bool {
$data = [
'mode' => 'check',
'text' => $user_text,
'extra' => $this->extra,
'cookie' => $user_cookie
];
$ret = $this->http->requestGet($this->domain . '/' . $this->provider_check, $data);
return $ret === '1';
}
}