core: add xhost config

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.23.14",
+    "version": "2.23.15",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",

packages/hydrooj/src/interface.ts

@@ -31,6 +31,7 @@ export interface SystemKeys {
     'server.name': string,
     'server.url': string,
     'server.xff': string,
+    'server.xhost': string,
     'server.worker': number,
     'server.port': number,
     'server.language': string,

packages/hydrooj/src/model/setting.ts

@@ -159,6 +159,7 @@ SystemSetting(
     Setting('setting_server', 'server.cdn', '/', 'text', 'server.cdn', 'CDN Prefix'),
     Setting('setting_server', 'server.port', 8888, 'number', 'server.port', 'Server Port'),
     Setting('setting_server', 'server.xff', null, 'text', 'server.xff', 'IP Header'),
+    Setting('setting_server', 'server.xhost', null, 'text', 'server.xhost', 'Hostname Header'),
     Setting('setting_server', 'server.language', 'zh_CN', langRange, 'server.language', 'Default display language'),
     Setting('setting_server', 'server.login', true, 'boolean', 'server.login', 'Allow builtin-login'),
     Setting('setting_basic', 'default.priv', builtin.PRIV.PRIV_DEFAULT, 'number', 'default.priv', 'Default Privilege'),

packages/hydrooj/src/service/server.ts

@@ -443,8 +443,9 @@ export class Handler extends HandlerCommon {
         this.UiContext = cloneDeep(UiContextBase);
         this.UiContext.cdn_prefix = system.get('server.cdn');
         this.session = {};
-        const xff = system.get('server.xff');
+        const [xff, xhost] = system.getMany(['server.xff', 'server.xhost']);
         if (xff) this.request.ip = this.request.headers[xff.toLowerCase()] || this.request.ip;
+        if (xhost) this.request.hostname = this.request.headers[xhost.toLowerCase()] || this.request.hostname;
         this.noCheckPermView = true;
     }