feat: add LINUXDO_AUTH_ENABLED switch to disable LINUX DO Connect login

.env.example

@@ -148,6 +148,10 @@ LINUXDO_CLIENT_SECRET=
 LINUXDO_REDIRECT_URI=http://127.0.0.1:8787/api/v1/auth/callback
 # Comma-separated LINUX DO user ids and/or usernames who become admins
 LINUXDO_ADMIN_IDS=12345,your_username
+# Master switch for LINUX DO Connect login. Set to false to disable the
+# "使用 LINUX DO 登录" button and refuse /api/v1/auth/login + /callback even
+# when LINUXDO_CLIENT_* are configured (e.g. keep only username/password auth).
+# LINUXDO_AUTH_ENABLED=true
 # Optional overrides:
 # LINUXDO_AUTHORIZE_URL=https://connect.linux.do/oauth2/authorize
 # LINUXDO_TOKEN_URL=https://connect.linux.do/oauth2/token

apps/api/public/admin.html

@@ -8319,9 +8319,20 @@
         }
       } catch {
         $("gate").classList.add("show");
+        hideAdminOauthBtn();
       }
     }
 
+    async function hideAdminOauthBtn() {
+      try {
+        const cfg = await api("/api/v1/auth/config");
+        if (cfg && cfg.oauthEnabled === false) {
+          const btn = $("loginBtn");
+          if (btn) btn.style.display = "none";
+        }
+      } catch (_) {}
+    }
+
     function showTabError(tab, err) {
       const sec = document.getElementById(tab);
       if (!sec) return;

apps/api/public/app.html

@@ -3929,13 +3929,23 @@
       await resolveInviteFromUrl();
       try {
         const cfg = await api("/api/v1/auth/config");
-        if (cfg && cfg.localAuthEnabled === false) {
+        if (cfg) {
+          if (cfg.localAuthEnabled === false) {
             setAuthTab("login");
             if ($("authTabs")) $("authTabs").style.display = "none";
             if ($("authLoginPanel")) $("authLoginPanel").style.display = "none";
             if ($("authRegisterPanel")) $("authRegisterPanel").style.display = "none";
             setInviteBanner(null);
           }
+          if (cfg.oauthEnabled === false) {
+            const btn = $("loginBtn");
+            if (btn) btn.style.display = "none";
+            const divider = $("loginGate")?.querySelector(".auth-divider");
+            if (divider) divider.style.display = "none";
+            const note = $("loginGate")?.querySelector(".auth-footer-note");
+            if (note) note.style.display = "none";
+          }
+        }
       } catch (_) {}
     }
 

apps/api/src/cli-doctor.ts

@@ -75,6 +75,9 @@ async function main(): Promise<void> {
     exitCode = 1;
   } else {
     ok(`OAuth redirect=${oauth.redirectUri}`);
+    if (!cfg.linuxdoAuthEnabled) {
+      warn("LINUXDO_AUTH_ENABLED=false — LINUX DO 登录已关闭（login/callback 拒绝）");
+    }
   }
   if (cfg.adminIds.size === 0) {
     warn("LINUXDO_ADMIN_IDS 为空 — 无人自动成为管理员");

apps/api/src/config.ts

@@ -251,6 +251,12 @@ export interface AppConfig {
   inviteQuotaWindowHours: number;
   inviteQuotaMax: number;
   firstUserIsAdmin: boolean;
+  /**
+   * LINUX DO Connect OAuth login. Default on when LINUXDO_CLIENT_* configured.
+   * Set LINUXDO_AUTH_ENABLED=false to disable the "使用 LINUX DO 登录" path
+   * entirely (login + callback both refuse) even when credentials exist.
+   */
+  linuxdoAuthEnabled: boolean;
   /**
    * Optional ops labels for multi-node fleet display (not public URLs).
    * WORKER_ID itself is read by BotWorkerManager from process.env.
@@ -428,6 +434,7 @@ export function loadConfig(env: NodeJS.ProcessEnv = process.env): AppConfig {
     inviteQuotaWindowHours: Number(env.INVITE_QUOTA_WINDOW_HOURS ?? "24"),
     inviteQuotaMax: Number(env.INVITE_QUOTA_MAX ?? "3"),
     firstUserIsAdmin: env.FIRST_USER_IS_ADMIN !== "false",
+    linuxdoAuthEnabled: env.LINUXDO_AUTH_ENABLED !== "false",
     llmBaseUrl: env.LLM_BASE_URL ?? "https://api.openai.com/v1",
     llmApiKey: env.LLM_API_KEY ?? "",
     llmModel: env.LLM_MODEL ?? "gpt-4o-mini",

apps/api/src/index.ts

@@ -451,7 +451,9 @@ async function main(): Promise<void> {
   );
   console.log(
     oauth
-      ? `[oauth] LINUX DO enabled → ${oauth.redirectUri}`
+      ? `[oauth] LINUX DO enabled → ${oauth.redirectUri}${
+          cfg.linuxdoAuthEnabled ? "" : " (登录已关闭 LINUXDO_AUTH_ENABLED=false)"
+        }`
       : "[oauth] LINUX DO 未配置（设置 LINUXDO_CLIENT_ID/SECRET/REDIRECT_URI）",
   );
 

apps/api/src/routes.ts

@@ -648,7 +648,7 @@ export async function registerRoutes(
     setPublicCache(reply, CC_AUTH_CONFIG, CDN_AUTH_CONFIG);
     const oauth = loadLinuxDoConfig();
     return {
-      oauthEnabled: Boolean(oauth),
+      oauthEnabled: Boolean(oauth) && ctx.cfg.linuxdoAuthEnabled,
       provider: "linux.do",
       localAuthEnabled: ctx.cfg.localAuthEnabled,
       inviteRequiredForLocal: ctx.cfg.inviteRequiredForLocal,
@@ -658,6 +658,11 @@ export async function registerRoutes(
 
   app.get("/api/v1/auth/login", async (req, reply) => {
     const oauth = loadLinuxDoConfig();
+    if (!ctx.cfg.linuxdoAuthEnabled) {
+      return reply
+        .code(503)
+        .send({ error: "LINUX DO 登录已关闭（LINUXDO_AUTH_ENABLED=false）" });
+    }
     if (!oauth) {
       return reply
         .code(503)
@@ -671,6 +676,9 @@ export async function registerRoutes(
 
   app.get("/api/v1/auth/callback", async (req, reply) => {
     const oauth = loadLinuxDoConfig();
+    if (!ctx.cfg.linuxdoAuthEnabled) {
+      return reply.code(503).type("text/plain; charset=utf-8").send("LINUX DO 登录已关闭");
+    }
     if (!oauth) return reply.code(503).send("oauth not configured");
     const q = req.query as { code?: string; state?: string; error?: string };
     if (q.error) return reply.code(400).send(`oauth error: ${q.error}`);

apps/api/src/runtime-settings-spec.ts

@@ -73,6 +73,7 @@ export type RuntimeSettingKey =
   | "tryChatMaxHistory"
   | "personaForkEnabled"
   // auth / invites
+  | "linuxdoAuthEnabled"
   | "localAuthEnabled"
   | "passwordMinLength"
   | "inviteRequiredForLocal"
@@ -743,6 +744,14 @@ export const SETTING_SPECS: SettingSpec[] = [
   },
 
   // ── 注册与邀请 ──
+  {
+    key: "linuxdoAuthEnabled",
+    env: "LINUXDO_AUTH_ENABLED",
+    group: "auth",
+    label: "启用 LINUX DO 登录",
+    type: "bool",
+    hint: "关闭后「使用 LINUX DO 登录」按钮隐藏，login/callback 一律拒绝（需已配置 LINUXDO_CLIENT_*）",
+  },
   {
     key: "localAuthEnabled",
     env: "LOCAL_AUTH_ENABLED",

docs/oauth-linuxdo.md

@@ -30,6 +30,19 @@ PUBLIC_BASE_URL=http://127.0.0.1:8787
 
 `LINUXDO_ADMIN_IDS`：匹配 OAuth 返回的 **用户 id** 或 **username** 即视为管理员。
 
+### 关闭 LINUX DO 登录
+
+如需禁用 LINUX DO Connect 登录（仅保留用户名密码/邀请码）：
+
+```env
+LINUXDO_AUTH_ENABLED=false
+```
+
+- 前端（`/app`、`/admin`）隐藏「使用 LINUX DO 登录」按钮
+- `/api/v1/auth/login` 与 `/api/v1/auth/callback` 一律返回 503
+- 即使 `LINUXDO_CLIENT_ID/SECRET` 仍配置着也不生效
+- 该开关可在 `/admin → 设置` 运行时切换，无需重启（`localAuthEnabled` 同理）
+
 ## 3. 流程
 
 1. 用户访问 `/app` → 可用 **用户名密码** 登录，或点「LINUX DO 登录」