88 lines
2.9 KiB
PHP
88 lines
2.9 KiB
PHP
<?php
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declare(strict_types=1);
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header('Content-Type: application/json');
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function urbm_bridge_log(string $level, string $message, array $context = []): void
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{
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$entry = array_merge([
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'time' => gmdate('c'),
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'level' => $level,
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'component' => 'webgui',
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'message' => $message,
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], $context);
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@file_put_contents('/var/log/urbm.log', json_encode($entry, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . PHP_EOL, FILE_APPEND | LOCK_EX);
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}
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function urbm_json_error(int $status, string $message): void
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{
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http_response_code($status);
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echo json_encode(['error' => $message], JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
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exit;
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}
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$socket = '/run/urbm/urbm.sock';
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$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
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$path = $_GET['path'] ?? '/v1/health';
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$isSnapshotFileRequest = preg_match('#/snapshots/[^/]+/files(?:\?|$)#', $path) === 1;
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if (!preg_match('#^/v1/[A-Za-z0-9_./?=&%:-]*$#', $path) || str_contains($path, '..')) {
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urbm_bridge_log('warn', 'invalid API path', ['path' => $path]);
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urbm_json_error(400, 'invalid API path');
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}
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if (!file_exists($socket)) {
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urbm_bridge_log('warn', 'daemon socket missing', ['path' => $path, 'socket' => $socket]);
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urbm_json_error(503, 'Der URBM-Daemon läuft nicht');
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}
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$curl = curl_init();
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curl_setopt_array($curl, [
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CURLOPT_UNIX_SOCKET_PATH => $socket,
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CURLOPT_URL => 'http://localhost' . $path,
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CURLOPT_CUSTOMREQUEST => $method,
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_CONNECTTIMEOUT => 3,
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CURLOPT_TIMEOUT => $isSnapshotFileRequest ? 1250 : 310,
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CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
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]);
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$body = file_get_contents('php://input');
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if ($method !== 'GET' && $body !== false && $body !== '') {
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curl_setopt($curl, CURLOPT_POSTFIELDS, $body);
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}
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$response = curl_exec($curl);
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$status = (int)curl_getinfo($curl, CURLINFO_RESPONSE_CODE);
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$error = curl_error($curl);
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curl_close($curl);
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if ($response === false) {
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$message = 'Verbindung zum URBM-Daemon fehlgeschlagen: ' . $error;
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urbm_bridge_log('warn', 'daemon request failed', ['path' => $path, 'status' => 502, 'error' => $message]);
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urbm_json_error(502, $message);
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}
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if ($status <= 0) {
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$message = 'URBM-Daemon lieferte keine HTTP-Antwort';
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urbm_bridge_log('warn', 'daemon response missing', ['path' => $path, 'status' => 502, 'error' => $message]);
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urbm_json_error(502, $message);
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}
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if ($status >= 400) {
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$decoded = json_decode((string)$response, true);
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if (is_array($decoded) && isset($decoded['error']) && is_string($decoded['error'])) {
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$message = $decoded['error'];
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} else {
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$message = trim((string)$response);
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}
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if ($message === '') {
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$message = 'URBM-Daemon lieferte HTTP ' . $status . ' ohne Fehlertext';
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}
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urbm_bridge_log('warn', 'api request failed', ['path' => $path, 'status' => $status, 'error' => $message]);
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urbm_json_error($status, $message);
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}
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http_response_code($status);
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echo $response;
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