From ff6068afcd3e8ed94f825adb9e7417192e88c50e Mon Sep 17 00:00:00 2001
From: "ry.yamafuji" <ry.yamafuji@gmail.com>
Date: Thu, 18 Dec 2025 21:36:21 +0900
Subject: [PATCH] =?UTF-8?q?PHP=E3=82=92=E8=BF=BD=E5=8A=A0=E3=81=99?=
 =?UTF-8?q?=E3=82=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/bff/proxy.php | 74 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 src/bff/proxy.php

diff --git a/src/bff/proxy.php b/src/bff/proxy.php
new file mode 100644
index 0000000..767cdbd
--- /dev/null
+++ b/src/bff/proxy.php
@@ -0,0 +1,74 @@
+<?php
+// =========================
+// 設定
+// =========================
+$UPSTREAM_BASE_URL = getenv('UPSTREAM_BASE_URL'); 
+// 例: https://xxxxx-uc.a.run.app
+if (!$UPSTREAM_BASE_URL) {
+  http_response_code(500);
+  echo 'UPSTREAM_BASE_URL is not set';
+  exit;
+}
+
+// =========================
+// リクエスト情報
+// =========================
+$method = $_SERVER['REQUEST_METHOD'];
+$uri    = $_SERVER['REQUEST_URI']; // パス + クエリ
+
+// 転送先URL
+$targetUrl = rtrim($UPSTREAM_BASE_URL, '/') . $uri;
+
+// =========================
+// ヘッダ取得
+// =========================
+$headers = [];
+foreach (getallheaders() as $k => $v) {
+  if (strtolower($k) === 'host') continue;
+  $headers[] = "$k: $v";
+}
+
+// =========================
+// body（非ストリーミング）
+// =========================
+$body = null;
+if (!in_array($method, ['GET', 'HEAD'])) {
+  $body = file_get_contents('php://input');
+}
+
+// =========================
+// 中継実行
+// =========================
+$context = stream_context_create([
+  'http' => [
+    'method'        => $method,
+    'header'        => implode("\r\n", $headers),
+    'content'       => $body,
+    'ignore_errors' => true, // 4xx / 5xx も取得
+  ]
+]);
+
+$responseBody = file_get_contents($targetUrl, false, $context);
+
+// =========================
+// ステータスコード
+// =========================
+if (isset($http_response_header[0])) {
+  if (preg_match('#HTTP/\d\.\d\s+(\d+)#', $http_response_header[0], $m)) {
+    http_response_code((int)$m[1]);
+  }
+}
+
+// =========================
+// レスポンスヘッダ
+// =========================
+foreach ($http_response_header as $h) {
+  if (stripos($h, 'Transfer-Encoding:') === 0) continue;
+  if (stripos($h, 'Connection:') === 0) continue;
+  header($h, false);
+}
+
+// =========================
+// レスポンスボディ
+// =========================
+echo $responseBody;