feat: add system setting to allow user signup (#407)

api/system.go

@@ -5,4 +5,6 @@ import "github.com/usememos/memos/server/profile"
 type SystemStatus struct {
 	Host    *User            `json:"host"`
 	Profile *profile.Profile `json:"profile"`
+	// System settings
+	AllowSignUp bool `json:"allowSignUp"`
 }

api/system_setting.go

+package api
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type SystemSettingName string
+
+const (
+	// SystemSettingAllowSignUpName is the key type of allow signup setting.
+	SystemSettingAllowSignUpName SystemSettingName = "allowSignUp"
+	SystemSettingPlaceholderName SystemSettingName = "placeholder"
+)
+
+func (key SystemSettingName) String() string {
+	switch key {
+	case SystemSettingAllowSignUpName:
+		return "allowSignUp"
+	case SystemSettingPlaceholderName:
+		return "placeholder"
+	}
+	return ""
+}
+
+var (
+	SystemSettingAllowSignUpValue = []bool{true, false}
+)
+
+type SystemSetting struct {
+	Name SystemSettingName
+	// Value is a JSON string with basic value
+	Value       string
+	Description string
+}
+
+type SystemSettingUpsert struct {
+	Name        SystemSettingName `json:"name"`
+	Value       string            `json:"value"`
+	Description string            `json:"description"`
+}
+
+func (upsert SystemSettingUpsert) Validate() error {
+	if upsert.Name == SystemSettingAllowSignUpName {
+		value := false
+		err := json.Unmarshal([]byte(upsert.Value), &value)
+		if err != nil {
+			return fmt.Errorf("failed to unmarshal system setting allow signup value")
+		}
+
+		invalid := true
+		for _, v := range SystemSettingAllowSignUpValue {
+			if value == v {
+				invalid = false
+				break
+			}
+		}
+		if invalid {
+			return fmt.Errorf("invalid system setting allow signup value")
+		}
+	} else {
+		return fmt.Errorf("invalid system setting name")
+	}
+
+	return nil
+}
+
+type SystemSettingFind struct {
+	Name *SystemSettingName `json:"name"`
+}

bin/server/main.go

@@ -45,7 +45,7 @@ func run(profile *profile.Profile) error {
 	println(greetingBanner)
 	fmt.Printf("Version %s has started at :%d\n", profile.Version, profile.Port)
 	metricCollector.Collect(ctx, &metric.Metric{
-		Name: "servive started",
+		Name: "service started",
 	})
 
 	return serverInstance.Run()

plugin/metrics/segment/collector.go

@@ -8,7 +8,9 @@ import (
 	metric "github.com/usememos/memos/plugin/metrics"
 )
 
-var _ metric.Collector = (*collector)(nil)
+var (
+	sessionUUID = uuid.NewString()
+)
 
 // collector is the metrics collector https://segment.com/.
 type collector struct {
@@ -33,7 +35,7 @@ func (c *collector) Collect(metric *metric.Metric) error {
 
 	return c.client.Enqueue(analytics.Track{
 		Event:       string(metric.Name),
-		AnonymousId: uuid.NewString(),
+		AnonymousId: sessionUUID,
 		Properties:  properties,
 		Timestamp:   time.Now().UTC(),
 	})

server/auth.go

@@ -70,7 +70,11 @@ func (s *Server) registerAuthRoutes(g *echo.Group) {
 
 	g.POST("/auth/signup", func(c echo.Context) error {
 		ctx := c.Request().Context()
-		// Don't allow to signup by this api if site host existed.
+		signup := &api.Signup{}
+		if err := json.NewDecoder(c.Request().Body).Decode(signup); err != nil {
+			return echo.NewHTTPError(http.StatusBadRequest, "Malformatted signup request").SetInternal(err)
+		}
+
 		hostUserType := api.Host
 		hostUserFind := api.UserFind{
 			Role: &hostUserType,
@@ -79,13 +83,27 @@ func (s *Server) registerAuthRoutes(g *echo.Group) {
 		if err != nil && common.ErrorCode(err) != common.NotFound {
 			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find host user").SetInternal(err)
 		}
-		if hostUser != nil {
+		if signup.Role == api.Host && hostUser != nil {
 			return echo.NewHTTPError(http.StatusUnauthorized, "Site Host existed, please contact the site host to signin account firstly.").SetInternal(err)
 		}
 
-		signup := &api.Signup{}
-		if err := json.NewDecoder(c.Request().Body).Decode(signup); err != nil {
-			return echo.NewHTTPError(http.StatusBadRequest, "Malformatted signup request").SetInternal(err)
+		systemSettingAllowSignUpName := api.SystemSettingAllowSignUpName
+		allowSignUpSetting, err := s.Store.FindSystemSetting(ctx, &api.SystemSettingFind{
+			Name: &systemSettingAllowSignUpName,
+		})
+		if err != nil && common.ErrorCode(err) != common.NotFound {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find system setting").SetInternal(err)
+		}
+
+		allowSignUpSettingValue := false
+		if allowSignUpSetting != nil {
+			err = json.Unmarshal([]byte(allowSignUpSetting.Value), &allowSignUpSettingValue)
+			if err != nil {
+				return echo.NewHTTPError(http.StatusInternalServerError, "Failed to unmarshal system setting allow signup").SetInternal(err)
+			}
+		}
+		if !allowSignUpSettingValue && hostUser != nil {
+			return echo.NewHTTPError(http.StatusUnauthorized, "Site Host existed, please contact the site host to signin account firstly.").SetInternal(err)
 		}
 
 		userCreate := &api.UserCreate{

server/system.go

@@ -38,8 +38,25 @@ func (s *Server) registerSystemRoutes(g *echo.Group) {
 		}
 
 		systemStatus := api.SystemStatus{
-			Host:    hostUser,
-			Profile: s.Profile,
+			Host:        hostUser,
+			Profile:     s.Profile,
+			AllowSignUp: false,
+		}
+
+		systemSettingList, err := s.Store.FindSystemSettingList(ctx, &api.SystemSettingFind{})
+		if err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find system setting list").SetInternal(err)
+		}
+		for _, systemSetting := range systemSettingList {
+			var value interface{}
+			err = json.Unmarshal([]byte(systemSetting.Value), &value)
+			if err != nil {
+				return echo.NewHTTPError(http.StatusInternalServerError, "Failed to unmarshal system setting").SetInternal(err)
+			}
+
+			if systemSetting.Name == api.SystemSettingAllowSignUpName {
+				systemStatus.AllowSignUp = value.(bool)
+			}
 		}
 
 		c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSONCharsetUTF8)
@@ -48,4 +65,57 @@ func (s *Server) registerSystemRoutes(g *echo.Group) {
 		}
 		return nil
 	})
+
+	g.POST("/system/setting", func(c echo.Context) error {
+		ctx := c.Request().Context()
+		userID, ok := c.Get(getUserIDContextKey()).(int)
+		if !ok {
+			return echo.NewHTTPError(http.StatusUnauthorized, "Missing user in session")
+		}
+
+		user, err := s.Store.FindUser(ctx, &api.UserFind{
+			ID: &userID,
+		})
+		if err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find user").SetInternal(err)
+		}
+		if user == nil {
+			return echo.NewHTTPError(http.StatusNotFound, "Current signin user not found")
+		} else if user.Role != api.Host {
+			return echo.NewHTTPError(http.StatusUnauthorized, "Unauthorized")
+		}
+
+		systemSettingUpsert := &api.SystemSettingUpsert{}
+		if err := json.NewDecoder(c.Request().Body).Decode(systemSettingUpsert); err != nil {
+			return echo.NewHTTPError(http.StatusBadRequest, "Malformatted post system setting request").SetInternal(err)
+		}
+		if err := systemSettingUpsert.Validate(); err != nil {
+			return echo.NewHTTPError(http.StatusBadRequest, "system setting invalidate").SetInternal(err)
+		}
+
+		systemSetting, err := s.Store.UpsertSystemSetting(ctx, systemSettingUpsert)
+		if err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to upsert system setting").SetInternal(err)
+		}
+
+		c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSONCharsetUTF8)
+		if err := json.NewEncoder(c.Response().Writer).Encode(composeResponse(systemSetting)); err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to encode system setting response").SetInternal(err)
+		}
+		return nil
+	})
+
+	g.GET("/system/setting", func(c echo.Context) error {
+		ctx := c.Request().Context()
+		systemSettingList, err := s.Store.FindSystemSettingList(ctx, &api.SystemSettingFind{})
+		if err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find system setting list").SetInternal(err)
+		}
+
+		c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSONCharsetUTF8)
+		if err := json.NewEncoder(c.Response().Writer).Encode(composeResponse(systemSettingList)); err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to encode system setting list response").SetInternal(err)
+		}
+		return nil
+	})
 }

store/db/seed/10005__system_setting.sql

+INSERT INTO 
+  system_setting (
+    `name`, 
+    `value`,
+    `description`
+  )
+VALUES
+  (
+    'allowSignUp', 
+    'true',
+    ''
+  );

store/system_setting.go

+package store
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+
+	"github.com/usememos/memos/api"
+	"github.com/usememos/memos/common"
+)
+
+type systemSettingRaw struct {
+	Name        api.SystemSettingName
+	Value       string
+	Description string
+}
+
+func (raw *systemSettingRaw) toSystemSetting() *api.SystemSetting {
+	return &api.SystemSetting{
+		Name:        raw.Name,
+		Value:       raw.Value,
+		Description: raw.Description,
+	}
+}
+
+func (s *Store) UpsertSystemSetting(ctx context.Context, upsert *api.SystemSettingUpsert) (*api.SystemSetting, error) {
+	tx, err := s.db.BeginTx(ctx, nil)
+	if err != nil {
+		return nil, FormatError(err)
+	}
+	defer tx.Rollback()
+
+	systemSettingRaw, err := upsertSystemSetting(ctx, tx, upsert)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := tx.Commit(); err != nil {
+		return nil, err
+	}
+
+	systemSetting := systemSettingRaw.toSystemSetting()
+
+	return systemSetting, nil
+}
+
+func (s *Store) FindSystemSettingList(ctx context.Context, find *api.SystemSettingFind) ([]*api.SystemSetting, error) {
+	tx, err := s.db.BeginTx(ctx, nil)
+	if err != nil {
+		return nil, FormatError(err)
+	}
+	defer tx.Rollback()
+
+	systemSettingRawList, err := findSystemSettingList(ctx, tx, find)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := tx.Commit(); err != nil {
+		return nil, err
+	}
+
+	list := []*api.SystemSetting{}
+	for _, raw := range systemSettingRawList {
+		list = append(list, raw.toSystemSetting())
+	}
+
+	return list, nil
+}
+
+func (s *Store) FindSystemSetting(ctx context.Context, find *api.SystemSettingFind) (*api.SystemSetting, error) {
+	tx, err := s.db.BeginTx(ctx, nil)
+	if err != nil {
+		return nil, FormatError(err)
+	}
+	defer tx.Rollback()
+
+	systemSettingRawList, err := findSystemSettingList(ctx, tx, find)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(systemSettingRawList) == 0 {
+		return nil, &common.Error{Code: common.NotFound, Err: fmt.Errorf("not found")}
+	}
+
+	return systemSettingRawList[0].toSystemSetting(), nil
+}
+
+func upsertSystemSetting(ctx context.Context, tx *sql.Tx, upsert *api.SystemSettingUpsert) (*systemSettingRaw, error) {
+	query := `
+		INSERT INTO system_setting (
+			name, value, description
+		)
+		VALUES (?, ?, ?)
+		ON CONFLICT(name) DO UPDATE 
+		SET
+			value = EXCLUDED.value,
+			description = EXCLUDED.description
+		RETURNING name, value, description
+	`
+	var systemSettingRaw systemSettingRaw
+	if err := tx.QueryRowContext(ctx, query, upsert.Name, upsert.Value, upsert.Description).Scan(
+		&systemSettingRaw.Name,
+		&systemSettingRaw.Value,
+		&systemSettingRaw.Description,
+	); err != nil {
+		return nil, FormatError(err)
+	}
+
+	return &systemSettingRaw, nil
+}
+
+func findSystemSettingList(ctx context.Context, tx *sql.Tx, find *api.SystemSettingFind) ([]*systemSettingRaw, error) {
+	where, args := []string{"1 = 1"}, []interface{}{}
+
+	if v := find.Name; v != nil {
+		where, args = append(where, "name = ?"), append(args, v.String())
+	}
+
+	query := `
+		SELECT
+			name,
+		  value,
+			description
+		FROM system_setting
+		WHERE ` + strings.Join(where, " AND ")
+	rows, err := tx.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, FormatError(err)
+	}
+	defer rows.Close()
+
+	systemSettingRawList := make([]*systemSettingRaw, 0)
+	for rows.Next() {
+		var systemSettingRaw systemSettingRaw
+		if err := rows.Scan(
+			&systemSettingRaw.Name,
+			&systemSettingRaw.Value,
+			&systemSettingRaw.Description,
+		); err != nil {
+			return nil, FormatError(err)
+		}
+
+		systemSettingRawList = append(systemSettingRawList, &systemSettingRaw)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, FormatError(err)
+	}
+
+	return systemSettingRawList, nil
+}

store/user.go

@@ -155,8 +155,6 @@ func (s *Store) FindUser(ctx context.Context, find *api.UserFind) (*api.User, er
 
 	if len(list) == 0 {
 		return nil, &common.Error{Code: common.NotFound, Err: fmt.Errorf("not found user with filter %+v", find)}
-	} else if len(list) > 1 {
-		return nil, &common.Error{Code: common.Conflict, Err: fmt.Errorf("found %d users with filter %+v, expect 1", len(list), find)}
 	}
 
 	userRaw := list[0]

web/package.json

@@ -8,6 +8,9 @@
     "test": "jest --passWithNoTests"
   },
   "dependencies": {
+    "@emotion/react": "^11.10.5",
+    "@emotion/styled": "^11.10.5",
+    "@mui/joy": "^5.0.0-alpha.52",
     "@reduxjs/toolkit": "^1.8.1",
     "axios": "^0.27.2",
     "copy-to-clipboard": "^3.3.2",

web/src/App.tsx

+import { CssVarsProvider } from "@mui/joy/styles";
 import { useEffect } from "react";
 import { useTranslation } from "react-i18next";
 import { RouterProvider } from "react-router-dom";
@@ -26,7 +27,11 @@ function App() {
     });
   }, [global.locale]);
 
-  return <RouterProvider router={router} />;
+  return (
+    <CssVarsProvider>
+      <RouterProvider router={router} />
+    </CssVarsProvider>
+  );
 }
 
 export default App;

web/src/components/SettingDialog.tsx

@@ -6,11 +6,12 @@ import { generateDialog } from "./Dialog";
 import MyAccountSection from "./Settings/MyAccountSection";
 import PreferencesSection from "./Settings/PreferencesSection";
 import MemberSection from "./Settings/MemberSection";
+import SystemSection from "./Settings/SystemSection";
 import "../less/setting-dialog.less";
 
 type Props = DialogProps;
 
-type SettingSection = "my-account" | "preferences" | "member";
+type SettingSection = "my-account" | "preferences" | "member" | "system";
 
 interface State {
   selectedSection: SettingSection;
@@ -61,6 +62,12 @@ const SettingDialog: React.FC<Props> = (props: Props) => {
               >
                 <span className="icon-text">👤</span> {t("setting.member")}
               </span>
+              <span
+                onClick={() => handleSectionSelectorItemClick("system")}
+                className={`section-item ${state.selectedSection === "system" ? "selected" : ""}`}
+              >
+                <span className="icon-text">🧑‍🔧</span> System Setting
+              </span>
             </div>
           </>
         ) : null}
@@ -72,6 +79,8 @@ const SettingDialog: React.FC<Props> = (props: Props) => {
           <PreferencesSection />
         ) : state.selectedSection === "member" ? (
           <MemberSection />
+        ) : state.selectedSection === "system" ? (
+          <SystemSection />
         ) : null}
       </div>
     </div>

web/src/components/Settings/SystemSection.tsx

+import { useEffect, useState } from "react";
+import { useTranslation } from "react-i18next";
+import Switch from "@mui/joy/Switch";
+import * as api from "../../helpers/api";
+import { globalService, userService } from "../../services";
+import Selector from "../common/Selector";
+import "../../less/settings/preferences-section.less";
+
+const localeSelectorItems = [
+  {
+    text: "English",
+    value: "en",
+  },
+  {
+    text: "中文",
+    value: "zh",
+  },
+  {
+    text: "Tiếng Việt",
+    value: "vi",
+  },
+];
+
+interface State {
+  allowSignUp: boolean;
+}
+
+const SystemSection = () => {
+  const { t } = useTranslation();
+  const [state, setState] = useState<State>({
+    allowSignUp: false,
+  });
+
+  useEffect(() => {
+    api.getSystemStatus().then(({ data }) => {
+      const { data: status } = data;
+      setState({
+        allowSignUp: status.allowSignUp,
+      });
+    });
+  }, []);
+
+  const handleAllowSignUpChanged = async (value: boolean) => {
+    setState({
+      ...state,
+      allowSignUp: value,
+    });
+    await api.upsertSystemSetting({
+      name: "allowSignUp",
+      value: JSON.stringify(value),
+    });
+  };
+
+  return (
+    <div className="section-container preferences-section-container">
+      <p className="title-text">{t("common.basic")}</p>
+      <label className="form-label selector">
+        <span className="normal-text">Allow user signUp</span>
+        <Switch size="sm" checked={state.allowSignUp} onChange={(event) => handleAllowSignUpChanged(event.target.checked)} />
+      </label>
+    </div>
+  );
+};
+
+export default SystemSection;

web/src/helpers/api.ts

@@ -10,6 +10,10 @@ export function getSystemStatus() {
   return axios.get<ResponseObject<SystemStatus>>("/api/status");
 }
 
+export function upsertSystemSetting(systemSetting: SystemSetting) {
+  return axios.post<ResponseObject<SystemSetting>>("/api/system/setting", systemSetting);
+}
+
 export function signin(email: string, password: string) {
   return axios.post<ResponseObject<User>>("/api/auth/signin", {
     email,

web/src/less/auth.less

@@ -59,6 +59,10 @@
         > .btn {
           @apply flex flex-row justify-center items-center px-1 py-2 text-sm rounded hover:opacity-80;
 
+          &.signup-btn {
+            @apply px-3;
+          }
+
           &.signin-btn {
             @apply bg-green-600 text-white px-3 shadow;
           }

web/src/locales/en.json

@@ -28,6 +28,7 @@
     "admin": "Admin",
     "explore": "Explore",
     "sign-in": "Sign in",
+    "sign-up": "Sign up",
     "sign-out": "Sign out",
     "back-to-home": "Back to Home",
     "type": "Type",

web/src/locales/vi.json

@@ -28,6 +28,7 @@
     "admin": "Admin",
     "explore": "Khám phá",
     "sign-in": "Đăng nhập",
+    "sign-up": "Sign up",
     "sign-out": "Đăng xuất",
     "back-to-home": "Về trang chủ",
     "type": "Kiểu",
@@ -173,4 +174,4 @@
     "resource-filename-updated": "Tên tệp tài nguyên đã thay đổi.",
     "invalid-resource-filename": "Tên tệp không hợp lệ."
   }
-}
+}
\ No newline at end of file

web/src/locales/zh.json

@@ -28,6 +28,7 @@
     "admin": "管理员",
     "explore": "探索",
     "sign-in": "登录",
+    "sign-up": "注册",
     "sign-out": "退出登录",
     "back-to-home": "回到主页",
     "type": "类型",

web/src/pages/Auth.tsx

@@ -5,7 +5,6 @@ import * as api from "../helpers/api";
 import { validate, ValidatorConfig } from "../helpers/validator";
 import useLoading from "../hooks/useLoading";
 import { globalService, userService } from "../services";
-import Icon from "../components/Icon";
 import toastHelper from "../components/Toast";
 import "../less/auth.less";
 
@@ -20,7 +19,7 @@ const Auth = () => {
   const { t, i18n } = useTranslation();
   const navigate = useNavigate();
   const pageLoadingState = useLoading(true);
-  const [siteHost, setSiteHost] = useState<User>();
+  const [systemStatus, setSystemStatus] = useState<SystemStatus>();
   const [email, setEmail] = useState("");
   const [password, setPassword] = useState("");
   const actionBtnLoadingState = useLoading(false);
@@ -28,7 +27,7 @@ const Auth = () => {
   useEffect(() => {
     api.getSystemStatus().then(({ data }) => {
       const { data: status } = data;
-      setSiteHost(status.host);
+      setSystemStatus(status);
       if (status.profile.mode === "dev") {
         setEmail("demo@usememos.com");
         setPassword("secret");
@@ -47,9 +46,7 @@ const Auth = () => {
     setPassword(text);
   };
 
-  const handleSigninBtnsClick = async (e: React.FormEvent<EventTarget>) => {
-    e.preventDefault();
-
+  const handleSigninBtnsClick = async () => {
     if (actionBtnLoadingState.isLoading) {
       return;
     }
@@ -77,14 +74,12 @@ const Auth = () => {
       }
     } catch (error: any) {
       console.error(error);
-      toastHelper.error(error.response.data.message);
+      toastHelper.error(error.response.data.error);
     }
     actionBtnLoadingState.setFinish();
   };
 
-  const handleSignUpAsHostBtnsClick = async (e: React.FormEvent<EventTarget>) => {
-    e.preventDefault();
-
+  const handleSignUpBtnsClick = async (role: UserRole) => {
     if (actionBtnLoadingState.isLoading) {
       return;
     }
@@ -103,7 +98,7 @@ const Auth = () => {
 
     try {
       actionBtnLoadingState.setLoading();
-      await api.signup(email, password, "HOST");
+      await api.signup(email, password, role);
       const user = await userService.doSignIn();
       if (user) {
         navigate("/");
@@ -112,7 +107,7 @@ const Auth = () => {
       }
     } catch (error: any) {
       console.error(error);
-      toastHelper.error(error.response.data.message);
+      toastHelper.error(error.response.data.error);
     }
     actionBtnLoadingState.setFinish();
   };
@@ -124,7 +119,7 @@ const Auth = () => {
   return (
     <div className="page-wrapper auth">
       <div className="page-container">
-        <form className="auth-form-wrapper" onSubmit={(e) => (siteHost ? handleSigninBtnsClick(e) : handleSignUpAsHostBtnsClick(e))}>
+        <div className="auth-form-wrapper">
           <div className="page-header-container">
             <div className="title-container">
               <img className="logo-img" src="/logo-full.webp" alt="" />
@@ -143,16 +138,39 @@ const Auth = () => {
           </div>
           <div className="action-btns-container">
             {!pageLoadingState.isLoading && (
-              <button className={`btn signin-btn ${actionBtnLoadingState.isLoading ? "requesting" : ""}`} type="submit">
-                {actionBtnLoadingState.isLoading && <Icon.Loader className="img-icon" />}
-                {siteHost ? t("common.sign-in") : t("auth.signup-as-host")}
-              </button>
+              <>
+                {systemStatus?.host ? (
+                  <>
+                    {systemStatus?.allowSignUp && (
+                      <button
+                        className={`btn signup-btn ${actionBtnLoadingState.isLoading ? "requesting" : ""}`}
+                        onClick={() => handleSignUpBtnsClick("USER")}
+                      >
+                        {t("common.sign-up")}
+                      </button>
+                    )}
+                    <button
+                      className={`btn signin-btn ${actionBtnLoadingState.isLoading ? "requesting" : ""}`}
+                      onClick={handleSigninBtnsClick}
+                    >
+                      {t("common.sign-in")}
+                    </button>
+                  </>
+                ) : (
+                  <>
+                    <button
+                      className={`btn signin-btn ${actionBtnLoadingState.isLoading ? "requesting" : ""}`}
+                      onClick={() => handleSignUpBtnsClick("HOST")}
+                    >
+                      {t("auth.signup-as-host")}
+                    </button>
+                  </>
+                )}
+              </>
             )}
           </div>
-          <p className={`tip-text ${siteHost || pageLoadingState.isLoading ? "" : "host-tip"}`}>
-            {siteHost || pageLoadingState.isLoading ? t("auth.not-host-tip") : t("auth.host-tip")}
-          </p>
-        </form>
+          {!systemStatus?.host && <p className="tip-text">{t("auth.host-tip")}</p>}
+        </div>
         <div className="footer-container">
           <div className="language-container">
             <span className={`locale-item ${i18n.language === "en" ? "active" : ""}`} onClick={() => handleLocaleItemClick("en")}>

web/src/types/modules/system.d.ts

@@ -6,4 +6,11 @@ interface Profile {
 interface SystemStatus {
   host: User;
   profile: Profile;
+  // System settings
+  allowSignUp: boolean;
+}
+
+interface SystemSetting {
+  name: string;
+  value: string;
 }