Demo mode: automatically connect as demo user

internal/apitest/get_appinfo_test.go

@@ -27,4 +27,5 @@ func TestGetAppInfo_Ok(t *testing.T) {
 	assert.Equal(t, http.StatusOK, w.Code)
 
 	assert.Equal(t, false, appInfo.RegistrationDisabled)
+	assert.Equal(t, false, appInfo.DemoMode)
 }

internal/config/config.go

@@ -19,6 +19,7 @@ type Config struct {
 	Limit               int    `toml:"limit" default:"100" comment:"A single API call will return at most this number of records."`
 	InventaireUrl       string `toml:"inventaire-url" default:"https://inventaire.io" comment:"An inventaire.io instance URL."`
 	DisableRegistration bool   `toml:"disable-registration" default:"false" comment:"Disable new account creation."`
+	DemoMode            bool   `toml:"demo-mode" default:"false" comment:"Activate demo mode: anyone connecting to the instance will be logged in as user 'demo'"`
 }
 
 func defaultConfig() Config {
@@ -31,6 +32,7 @@ func defaultConfig() Config {
 		Limit:               100,
 		InventaireUrl:       "https://inventaire.io",
 		DisableRegistration: false,
+		DemoMode:            false,
 	}
 }
 

internal/dto/out.go

@@ -2,6 +2,7 @@ package dto
 
 type AppInfo struct {
 	RegistrationDisabled bool `json:"registrationDisabled"`
+	DemoMode             bool `json:"demoMode"`
 }
 
 type BookGet struct {

internal/routes/appinfo.go

@@ -8,5 +8,8 @@ import (
 )
 
 func GetAppInfo(ac appcontext.AppContext) {
-	ac.C.JSON(http.StatusOK, dto.AppInfo{RegistrationDisabled: ac.Config.DisableRegistration})
+	ac.C.JSON(http.StatusOK, dto.AppInfo{
+		RegistrationDisabled: ac.Config.DisableRegistration,
+		DemoMode:             ac.Config.DemoMode,
+	})
 }

internal/routes/userlogin.go

@@ -16,21 +16,29 @@ import (
 )
 
 func PostLoginHandler(ac appcontext.AppContext) {
-	var user dto.UserLogin
-	err := ac.C.ShouldBindJSON(&user)
-	if err != nil {
-		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
-		return
-	}
 
-	if !isUserAndPasswordOk(ac.Db, user.Username, user.Password) {
-		ac.C.JSON(http.StatusUnauthorized,
-			gin.H{"error": i18nresource.GetTranslatedMessage(&ac, "InvalidCredentials")})
-		return
+	var username string
+
+	if !ac.Config.DemoMode {
+		var user dto.UserLogin
+		err := ac.C.ShouldBindJSON(&user)
+		if err != nil {
+			myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
+			return
+		}
+
+		if !ac.Config.DemoMode && !isUserAndPasswordOk(ac.Db, user.Username, user.Password) {
+			ac.C.JSON(http.StatusUnauthorized,
+				gin.H{"error": i18nresource.GetTranslatedMessage(&ac, "InvalidCredentials")})
+			return
+		}
+		username = user.Username
+	} else {
+		username = "demo"
 	}
 
 	var jwtToken string
-	jwtToken, err = jwtauth.GenerateJwtToken(user.Username)
+	jwtToken, err := jwtauth.GenerateJwtToken(username)
 	if err != nil {
 		ac.C.JSON(http.StatusUnauthorized,
 			gin.H{"error": fmt.Errorf("Error when generating JWT token: %w", err)})