From 28b13dd7ac4f000ba65e9fb2b794fa3e91c39e33 Mon Sep 17 00:00:00 2001
From: Aritro37 <85866469+Aritro37@users.noreply.github.com>
Date: Mon, 17 Mar 2025 17:04:24 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=94=AF=E6=8C=81=E9=80=9A=E8=BF=87.en?=
 =?UTF-8?q?v=E9=85=8D=E7=BD=AE=E7=8E=AF=E5=A2=83=E5=8F=98=E9=87=8F?=
 =?UTF-8?q?=EF=BC=8C=E5=90=8E=E7=AB=AF=E6=94=AF=E6=8C=81=E8=AE=BE=E7=BD=AE?=
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---
 backend/package.json         |  3 ++-
 backend/src/restful/index.js | 29 ++++++++++++++++++++++++-----
 2 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/backend/package.json b/backend/package.json
index a53b5e9..38e2c6d 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -27,6 +27,7 @@
     "automerge": "1.0.1-preview.7",
     "body-parser": "^1.19.0",
     "buffer": "^6.0.3",
+    "dotenv": "^16.4.7",
     "connect-history-api-fallback": "^2.0.0",
     "cron": "^3.1.6",
     "dns-packet": "^5.6.1",
@@ -70,4 +71,4 @@
     "prettier-plugin-sort-imports": "^1.6.1",
     "tinyify": "^3.0.0"
   }
-}
\ No newline at end of file
+}
diff --git a/backend/src/restful/index.js b/backend/src/restful/index.js
index 60f6ec6..385c53d 100644
--- a/backend/src/restful/index.js
+++ b/backend/src/restful/index.js
@@ -24,11 +24,30 @@ import registerParserRoutes from './parser';
 export default function serve() {
     let port;
     let host;
+    let prefix;
     if ($.env.isNode) {
+        const dotenv = eval(`require("dotenv")`);
+        dotenv.config();
         port = eval('process.env.SUB_STORE_BACKEND_API_PORT') || 3000;
         host = eval('process.env.SUB_STORE_BACKEND_API_HOST') || '::';
+        prefix = eval('process.env.SUB_STORE_BACKEND_PATH_PREFIX');
+        if (prefix && !prefix.startsWith("/")){
+            prefix = '/${prefix}'
+        }
     }
     const $app = express({ substore: $, port, host });
+    if (prefix && prefix.length >= 2){
+        $app.use((req, res, next) => {
+            if (req.path.startsWith(prefix)) {
+                const newPath = req.url.replace(prefix, '') || '/';
+                req.url = newPath;
+                next();
+            } else {
+                res.status(403).send();
+            }
+        });
+    }
+    
     // register routes
     registerCollectionRoutes($app);
     registerSubscriptionRoutes($app);
@@ -216,7 +235,7 @@ export default function serve() {
                 app.use(
                     be_share_rewrite,
                     createProxyMiddleware({
-                        target: `http://127.0.0.1:${port}`,
+                        target: `http://127.0.0.1:${port}${prefix}`,
                         changeOrigin: true,
                         pathRewrite: async (path, req) => {
                             if (req.method.toLowerCase() !== 'get')
@@ -237,7 +256,7 @@ export default function serve() {
                 app.use(
                     be_api_rewrite,
                     createProxyMiddleware({
-                        target: `http://127.0.0.1:${port}${be_api}`,
+                        target: `http://127.0.0.1:${port}${prefix}${be_api}`,
                         pathRewrite: async (path) => {
                             return path.includes('?')
                                 ? `${path}&share=true`
@@ -248,7 +267,7 @@ export default function serve() {
                 app.use(
                     be_download_rewrite,
                     createProxyMiddleware({
-                        target: `http://127.0.0.1:${port}${be_download}`,
+                        target: `http://127.0.0.1:${port}${prefix}${be_download}`,
                         changeOrigin: true,
                     }),
                 );
@@ -269,10 +288,10 @@ export default function serve() {
                 $.info(`[FRONTEND] ${fe_address}:${fe_port}`);
                 if (fe_be_path) {
                     $.info(
-                        `[FRONTEND -> BACKEND] ${fe_address}:${fe_port}${be_api_rewrite} -> http://127.0.0.1:${port}${be_api}`,
+                        `[FRONTEND -> BACKEND] ${fe_address}:${fe_port}${be_api_rewrite} -> http://127.0.0.1:${port}${prefix}${be_api}`,
                     );
                     $.info(
-                        `[FRONTEND -> BACKEND] ${fe_address}:${fe_port}${be_download_rewrite} -> http://127.0.0.1:${port}${be_download}`,
+                        `[FRONTEND -> BACKEND] ${fe_address}:${fe_port}${be_download_rewrite} -> http://127.0.0.1:${port}${prefix}${be_download}`,
                     );
                     $.info(
                         `[SHARE BACKEND] ${fe_address}:${fe_port}${be_share_rewrite}`,