sandhiya-hepl
120 lines
3.2 KiB
PHP
120 lines
3.2 KiB
PHP
<?php
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/**
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* Forward /citpl_website/api/* → Node (Express) without requiring Apache mod_proxy.
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* Start the API on the server: cd /path/to/app && npm run server
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* Or: pm2 start server/index.js --name citpl-api
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*/
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declare(strict_types=1);
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$apiOrigin = getenv('CITPL_API_ORIGIN') ?: 'http://127.0.0.1:3001';
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$requestUri = $_SERVER['REQUEST_URI'] ?? '/api';
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$path = parse_url($requestUri, PHP_URL_PATH) ?: '/api';
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// Keep everything from "/api" onward (works under /citpl_website/api/...)
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if (preg_match('#(/api(?:/.*)?)$#', $path, $m)) {
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$forwardPath = $m[1];
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} else {
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$forwardPath = '/api';
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}
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$query = $_SERVER['QUERY_STRING'] ?? '';
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$url = rtrim($apiOrigin, '/') . $forwardPath . ($query !== '' ? '?' . $query : '');
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$method = $_SERVER['REQUEST_METHOD'] ?? 'GET';
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$body = file_get_contents('php://input');
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if ($body === false) {
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$body = '';
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}
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$headers = [];
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if (function_exists('getallheaders')) {
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foreach (getallheaders() as $name => $value) {
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$lower = strtolower((string) $name);
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if ($lower === 'host' || $lower === 'content-length') {
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continue;
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}
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$headers[] = $name . ': ' . $value;
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}
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} else {
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foreach ($_SERVER as $key => $value) {
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if (strpos($key, 'HTTP_') !== 0) {
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continue;
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}
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$name = str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($key, 5)))));
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if (strtolower($name) === 'host') {
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continue;
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}
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$headers[] = $name . ': ' . $value;
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}
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if (!empty($_SERVER['CONTENT_TYPE'])) {
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$headers[] = 'Content-Type: ' . $_SERVER['CONTENT_TYPE'];
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}
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}
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if (!function_exists('curl_init')) {
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http_response_code(500);
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header('Content-Type: application/json');
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echo json_encode([
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'error' => 'PHP curl extension is required for the API proxy',
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'code' => 'PROXY_MISCONFIGURED',
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]);
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exit;
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}
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$ch = curl_init($url);
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curl_setopt_array($ch, [
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CURLOPT_CUSTOMREQUEST => $method,
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_HEADER => true,
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CURLOPT_FOLLOWLOCATION => false,
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CURLOPT_CONNECTTIMEOUT => 5,
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CURLOPT_TIMEOUT => 60,
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CURLOPT_HTTPHEADER => $headers,
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]);
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if ($method !== 'GET' && $method !== 'HEAD') {
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curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
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}
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$response = curl_exec($ch);
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if ($response === false) {
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$err = curl_error($ch);
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curl_close($ch);
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http_response_code(502);
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header('Content-Type: application/json');
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echo json_encode([
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'error' => 'API server unreachable. On the host run: npm run server (port 3001)',
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'detail' => $err,
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'code' => 'BAD_GATEWAY',
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]);
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exit;
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}
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$status = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
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$headerSize = (int) curl_getinfo($ch, CURLINFO_HEADER_SIZE);
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curl_close($ch);
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$rawHeaders = substr($response, 0, $headerSize);
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$responseBody = substr($response, $headerSize);
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http_response_code($status > 0 ? $status : 502);
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$skip = ['transfer-encoding', 'connection', 'keep-alive', 'content-length'];
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foreach (explode("\r\n", $rawHeaders) as $line) {
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if ($line === '' || stripos($line, 'HTTP/') === 0) {
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continue;
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}
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$parts = explode(':', $line, 2);
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if (count($parts) < 2) {
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continue;
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}
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$name = trim($parts[0]);
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if (in_array(strtolower($name), $skip, true)) {
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continue;
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}
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header($name . ':' . $parts[1], false);
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}
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echo $responseBody;
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