140 lines
4.2 KiB
PHP
140 lines
4.2 KiB
PHP
<?php
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declare(strict_types=1);
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ini_set('display_errors', '1');
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error_reporting(E_ALL);
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$config = require __DIR__ . '/../../config/database.php';
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$telegramConfig = require __DIR__ . '/../../config/telegram.php';
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require_once __DIR__ . '/lib/message_footer.php';
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require_once __DIR__ . '/lib/http.php';
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$dsn = sprintf(
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'mysql:host=%s;dbname=%s;charset=%s',
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$config['host'],
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$config['dbname'],
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$config['charset'] ?? 'utf8mb4'
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);
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$pdo = new PDO(
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$dsn,
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$config['user'],
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$config['pass'],
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[
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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]
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);
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function telegramWebhookRespond(array $payload, int $statusCode = 200): never
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{
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http_response_code($statusCode);
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header('Content-Type: application/json; charset=utf-8');
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echo json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
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exit;
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}
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function telegramSendBotMessage(array $telegramConfig, string $chatId, string $messageText): void
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{
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$botToken = trim((string) ($telegramConfig['bot_token'] ?? ''));
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if ($botToken === '' || $chatId === '' || $messageText === '') {
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return;
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}
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telegramHttpPostJson(
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'https://api.telegram.org/bot' . $botToken . '/sendMessage',
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[
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'chat_id' => $chatId,
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'text' => appendTelegramServiceFooter($messageText),
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]
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);
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}
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$expectedSecret = trim((string) ($telegramConfig['webhook_secret'] ?? ''));
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if ($expectedSecret !== '') {
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$providedSecret = (string) ($_SERVER['HTTP_X_TELEGRAM_BOT_API_SECRET_TOKEN'] ?? '');
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if (!hash_equals($expectedSecret, $providedSecret)) {
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telegramWebhookRespond(['ok' => false, 'error' => 'invalid_secret'], 403);
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}
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}
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$rawBody = file_get_contents('php://input');
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$update = json_decode((string) $rawBody, true);
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if (!is_array($update)) {
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telegramWebhookRespond(['ok' => false, 'error' => 'invalid_json'], 400);
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}
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$message = $update['message'] ?? $update['edited_message'] ?? null;
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if (!is_array($message)) {
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telegramWebhookRespond(['ok' => true, 'status' => 'ignored_no_message']);
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}
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$chatId = isset($message['chat']['id']) ? (string) $message['chat']['id'] : '';
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$telegramUsername = trim((string) ($message['from']['username'] ?? ''));
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$text = trim((string) ($message['text'] ?? ''));
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if ($chatId === '' || $text === '') {
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telegramWebhookRespond(['ok' => true, 'status' => 'ignored_missing_data']);
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}
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$token = null;
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if (preg_match('/^\/start\s+connect_([A-Fa-f0-9]{32,128})$/', $text, $matches)) {
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$token = strtolower($matches[1]);
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} elseif (preg_match('/^connect_([A-Fa-f0-9]{32,128})$/', $text, $matches)) {
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$token = strtolower($matches[1]);
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}
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if ($token === null) {
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telegramWebhookRespond(['ok' => true, 'status' => 'ignored_no_connect_token']);
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}
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$stmtUser = $pdo->prepare("
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SELECT `id`
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FROM `app_users`
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WHERE `telegram_link_token` = :token
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AND `telegram_link_token_expires_at` IS NOT NULL
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AND `telegram_link_token_expires_at` > NOW()
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LIMIT 1
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");
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$stmtUser->execute([':token' => $token]);
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$user = $stmtUser->fetch();
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if (!$user) {
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telegramWebhookRespond(['ok' => true, 'status' => 'token_not_found_or_expired']);
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}
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$stmtUpdate = $pdo->prepare("
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UPDATE `app_users`
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SET
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`telegram_username` = :telegram_username,
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`telegram_chat_id` = :telegram_chat_id,
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`telegram_connected_at` = NOW(),
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`telegram_link_token` = NULL,
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`telegram_link_token_expires_at` = NULL,
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`updated_at` = NOW()
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WHERE `id` = :id
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");
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$stmtUpdate->execute([
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':telegram_username' => $telegramUsername !== '' ? $telegramUsername : null,
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':telegram_chat_id' => $chatId,
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':id' => (int) $user['id'],
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]);
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$welcomeName = $telegramUsername !== '' ? '@' . ltrim($telegramUsername, '@') : 'bei Telegram';
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$welcomeMessage = implode("\n", [
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'Willkommen bei SkyView.',
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'',
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'Dein Telegram-Konto wurde erfolgreich mit deinem SkyView-Benutzer verbunden.',
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'Du kannst jetzt spaeter Hinweise und Inhalte direkt vom Bot erhalten.',
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'',
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'Verbunden als: ' . $welcomeName,
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]);
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telegramSendBotMessage($telegramConfig, $chatId, $welcomeMessage);
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telegramWebhookRespond([
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'ok' => true,
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'status' => 'connected',
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'user_id' => (int) $user['id'],
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]);
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