sanitize and save URL slugs

Reviewed-on: #50
Reviewed-by: Wiktor Dudzic <dudzic_wiktor@ma-al.com>

app/delivery/middleware/auth.go

@@ -1,6 +1,7 @@
 package middleware
 
 import (
+	"strconv"
 	"strings"
 
 	"git.ma-al.com/goc_daniel/b2b/app/config"
@@ -60,9 +61,52 @@ func AuthMiddleware() fiber.Handler {
 			})
 		}
 
-		// Set user in context
+		// Create locale. LangID is overwritten by auth Token
-		c.Locals(constdata.USER_LOCALES_NAME, user.ToSession())
+		var userLocale model.UserLocale
-		c.Locals(constdata.USER_LOCALES_ID, user.ID)
+		userLocale.OriginalUser = user
+
+		// Check if target user is present
+		targetUserIDAttribute := c.Query("target_user_id")
+
+		if targetUserIDAttribute == "" {
+			userLocale.User = user
+			c.Locals(constdata.USER_LOCALE, &userLocale)
+
+			return c.Next()
+		}
+
+		// We now populate the target user
+		if user.Role != model.RoleAdmin {
+			return c.Status(fiber.StatusForbidden).JSON(fiber.Map{
+				"error": "admin access required",
+			})
+		}
+
+		targetUserID, err := strconv.Atoi(targetUserIDAttribute)
+		if err != nil {
+			return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+				"error": "invalid target user id attribute",
+			})
+		}
+
+		// to verify target user, we use the same functionality as for verifying original user
+		// Get target user from database
+		user, err = authService.GetUserByID(uint(targetUserID))
+		if err != nil {
+			return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{
+				"error": "target user not found",
+			})
+		}
+
+		// Check if target user is active
+		if !user.IsActive {
+			return c.Status(fiber.StatusForbidden).JSON(fiber.Map{
+				"error": "target user account is inactive",
+			})
+		}
+
+		userLocale.User = user
+		c.Locals(constdata.USER_LOCALE, &userLocale)
 
 		return c.Next()
 	}
@@ -95,24 +139,6 @@ func RequireAdmin() fiber.Handler {
 	}
 }
 
-// GetUserID extracts user ID from context
-func GetUserID(c fiber.Ctx) uint {
-	userID, ok := c.Locals("userID").(uint)
-	if !ok {
-		return 0
-	}
-	return userID
-}
-
-// GetUser extracts user from context
-func GetUser(c fiber.Ctx) *model.UserSession {
-	user, ok := c.Locals("user").(*model.UserSession)
-	if !ok {
-		return nil
-	}
-	return user
-}
-
 // GetConfig returns the app config
 func GetConfig() *config.Config {
 	return config.Get()

app/delivery/middleware/language.go

@@ -4,7 +4,9 @@ import (
 	"strconv"
 	"strings"
 
+	"git.ma-al.com/goc_daniel/b2b/app/model"
 	"git.ma-al.com/goc_daniel/b2b/app/service/langsService"
+	constdata "git.ma-al.com/goc_daniel/b2b/app/utils/const_data"
 	"github.com/gofiber/fiber/v3"
 )
 
@@ -22,15 +24,11 @@ func LanguageMiddleware() fiber.Handler {
 			if id, err := strconv.ParseUint(langIDStr, 10, 32); err == nil {
 				langID = uint(id)
 				if langID > 0 {
-					lang, err := langService.GetLanguageById(langID)
+					c.Locals(constdata.USER_LOCALE, returnNewLocale(langID))
-					if err == nil {
-						c.Locals("langID", langID)
-						c.Locals("lang", lang)
 					return c.Next()
 				}
 			}
 		}
-		}
 
 		// 2. Check cookie
 		cookieLang := c.Cookies("lang_id", "")
@@ -38,15 +36,11 @@ func LanguageMiddleware() fiber.Handler {
 			if id, err := strconv.ParseUint(cookieLang, 10, 32); err == nil {
 				langID = uint(id)
 				if langID > 0 {
-					lang, err := langService.GetLanguageById(langID)
+					c.Locals(constdata.USER_LOCALE, returnNewLocale(langID))
-					if err == nil {
-						c.Locals("langID", langID)
-						c.Locals("lang", lang)
 					return c.Next()
 				}
 			}
 		}
-		}
 
 		// 3. Check Accept-Language header
 		acceptLang := c.Get("Accept-Language", "")
@@ -57,8 +51,7 @@ func LanguageMiddleware() fiber.Handler {
 				lang, err := langService.GetLanguageByISOCode(isoCode)
 				if err == nil && lang != nil {
 					langID = uint(lang.ID)
-					c.Locals("langID", langID)
+					c.Locals(constdata.USER_LOCALE, returnNewLocale(langID))
-					c.Locals("lang", lang)
 					return c.Next()
 				}
 			}
@@ -68,8 +61,7 @@ func LanguageMiddleware() fiber.Handler {
 		defaultLang, err := langService.GetDefaultLanguage()
 		if err == nil && defaultLang != nil {
 			langID = uint(defaultLang.ID)
-			c.Locals("langID", langID)
+			c.Locals(constdata.USER_LOCALE, returnNewLocale(langID))
-			c.Locals("lang", defaultLang)
 		}
 
 		return c.Next()
@@ -104,11 +96,9 @@ func parseAcceptLanguage(header string) string {
 	return strings.ToLower(first)
 }
 
-// GetLanguageID extracts language ID from context
+func returnNewLocale(lang_id uint) *model.UserLocale {
-func GetLanguageID(c fiber.Ctx) uint {
+	newLocale := model.UserLocale{}
-	langID, ok := c.Locals("langID").(uint)
+	newLocale.OriginalUser = &model.Customer{}
-	if !ok {
+	newLocale.OriginalUser.LangID = lang_id
-		return 0
+	return &newLocale
-	}
-	return langID
 }

app/delivery/web/api/public/auth.go

@@ -268,15 +268,15 @@ func (h *AuthHandler) RefreshToken(c fiber.Ctx) error {
 
 // Me returns the current user info
 func (h *AuthHandler) Me(c fiber.Ctx) error {
-	user := c.Locals("user")
+	userLocale := c.Locals(constdata.USER_LOCALE).(*model.UserLocale)
-	if user == nil {
+	if userLocale.OriginalUser == nil {
 		return c.Status(fiber.StatusUnauthorized).JSON(fiber.Map{
 			"error": responseErrors.GetErrorCode(c, responseErrors.ErrNotAuthenticated),
 		})
 	}
 
 	return c.JSON(fiber.Map{
-		"user": user,
+		"user": *userLocale.OriginalUser,
 	})
 }
 
@@ -351,21 +351,12 @@ func (h *AuthHandler) CompleteRegistration(c fiber.Ctx) error {
 
 // Updates JWT Tokens. Requires authentication and updates access token only
 func (h *AuthHandler) UpdateJWTToken(c fiber.Ctx) error {
-	userLocals, ok := c.Locals(constdata.USER_LOCALES_NAME).(*model.UserSession)
+	userLocale, ok := c.Locals(constdata.USER_LOCALE).(*model.UserLocale)
 	if !ok {
 		return c.Status(fiber.StatusUnauthorized).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrNotAuthenticated)))
 	}
 
-	user := model.Customer{
-		ID:        userLocals.UserID,
-		Email:     userLocals.Email,
-		Role:      userLocals.Role,
-		LangID:    userLocals.LangID,
-		CountryID: userLocals.CountryID,
-		IsActive:  userLocals.IsActive,
-	}
-
 	// Parse language and country_id from query params
 	langIDStr := c.Query("lang_id")
 
@@ -375,7 +366,7 @@ func (h *AuthHandler) UpdateJWTToken(c fiber.Ctx) error {
 			return c.Status(fiber.StatusBadRequest).
 				JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadLangID)))
 		}
-		user.LangID = uint(parsedID)
+		userLocale.OriginalUser.LangID = uint(parsedID)
 	}
 
 	countryIDStr := c.Query("country_id")
@@ -386,10 +377,10 @@ func (h *AuthHandler) UpdateJWTToken(c fiber.Ctx) error {
 			return c.Status(fiber.StatusBadRequest).
 				JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadCountryID)))
 		}
-		user.CountryID = uint(parsedID)
+		userLocale.OriginalUser.CountryID = uint(parsedID)
 	}
 
-	newAccessToken, err := h.authService.UpdateJWTToken(&user)
+	newAccessToken, err := h.authService.UpdateJWTToken(userLocale.OriginalUser)
 
 	if err != nil {
 		return c.Status(responseErrors.GetErrorStatus(err)).JSON(fiber.Map{

app/delivery/web/api/public/routing.go

@@ -3,6 +3,7 @@ package public
 import (
 	"git.ma-al.com/goc_daniel/b2b/app/service/menuService"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/i18n"
+	"git.ma-al.com/goc_daniel/b2b/app/utils/localeExtractor"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/nullable"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/response"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/responseErrors"
@@ -30,7 +31,7 @@ func RoutingHandlerRoutes(r fiber.Router) fiber.Router {
 }
 
 func (h *RoutingHandler) GetRouting(c fiber.Ctx) error {
-	lang_id, ok := c.Locals("langID").(uint)
+	lang_id, ok := localeExtractor.GetLangID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))

app/delivery/web/api/restricted/carts.go

@@ -5,6 +5,7 @@ import (
 
 	"git.ma-al.com/goc_daniel/b2b/app/service/cartsService"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/i18n"
+	"git.ma-al.com/goc_daniel/b2b/app/utils/localeExtractor"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/nullable"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/response"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/responseErrors"
@@ -37,7 +38,7 @@ func CartsHandlerRoutes(r fiber.Router) fiber.Router {
 }
 
 func (h *CartsHandler) AddNewCart(c fiber.Ctx) error {
-	userID, ok := c.Locals("userID").(uint)
+	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))
@@ -53,7 +54,7 @@ func (h *CartsHandler) AddNewCart(c fiber.Ctx) error {
 }
 
 func (h *CartsHandler) ChangeCartName(c fiber.Ctx) error {
-	userID, ok := c.Locals("userID").(uint)
+	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))
@@ -78,7 +79,7 @@ func (h *CartsHandler) ChangeCartName(c fiber.Ctx) error {
 }
 
 func (h *CartsHandler) RetrieveCartsInfo(c fiber.Ctx) error {
-	userID, ok := c.Locals("userID").(uint)
+	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))
@@ -94,7 +95,7 @@ func (h *CartsHandler) RetrieveCartsInfo(c fiber.Ctx) error {
 }
 
 func (h *CartsHandler) RetrieveCart(c fiber.Ctx) error {
-	userID, ok := c.Locals("userID").(uint)
+	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))
@@ -117,7 +118,7 @@ func (h *CartsHandler) RetrieveCart(c fiber.Ctx) error {
 }
 
 func (h *CartsHandler) AddProduct(c fiber.Ctx) error {
-	userID, ok := c.Locals("userID").(uint)
+	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))

app/delivery/web/api/restricted/list.go

@@ -5,6 +5,7 @@ import (
 	"git.ma-al.com/goc_daniel/b2b/app/model"
 	"git.ma-al.com/goc_daniel/b2b/app/service/listService"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/i18n"
+	"git.ma-al.com/goc_daniel/b2b/app/utils/localeExtractor"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/nullable"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/query/query_params"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/response"
@@ -43,19 +44,19 @@ func (h *ListHandler) ListProducts(c fiber.Ctx) error {
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, err)))
 	}
 
-	id_lang, ok := c.Locals("langID").(uint)
+	id_lang, ok := localeExtractor.GetLangID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
 	}
 
-	listing, err := h.listService.ListProducts(id_lang, paging, filters)
+	list, err := h.listService.ListProducts(id_lang, paging, filters)
 	if err != nil {
 		return c.Status(responseErrors.GetErrorStatus(err)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, err)))
 	}
 
-	return c.JSON(response.Make(&listing.Items, int(listing.Count), i18n.T_(c, response.Message_OK)))
+	return c.JSON(response.Make(&list.Items, int(list.Count), i18n.T_(c, response.Message_OK)))
 }
 
 var columnMappingListProducts map[string]string = map[string]string{
@@ -74,19 +75,19 @@ func (h *ListHandler) ListUsers(c fiber.Ctx) error {
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, err)))
 	}
 
-	id_lang, ok := c.Locals("langID").(uint)
+	id_lang, ok := localeExtractor.GetLangID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
 	}
 
-	listing, err := h.listService.ListUsers(id_lang, paging, filters)
+	list, err := h.listService.ListUsers(id_lang, paging, filters)
 	if err != nil {
 		return c.Status(responseErrors.GetErrorStatus(err)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, err)))
 	}
 
-	return c.JSON(response.Make(&listing.Items, int(listing.Count), i18n.T_(c, response.Message_OK)))
+	return c.JSON(response.Make(&list.Items, int(list.Count), i18n.T_(c, response.Message_OK)))
 }
 
 var columnMappingListUsers map[string]string = map[string]string{

app/delivery/web/api/restricted/menu.go

@@ -5,6 +5,7 @@ import (
 
 	"git.ma-al.com/goc_daniel/b2b/app/service/menuService"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/i18n"
+	"git.ma-al.com/goc_daniel/b2b/app/utils/localeExtractor"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/nullable"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/response"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/responseErrors"
@@ -33,7 +34,7 @@ func MenuHandlerRoutes(r fiber.Router) fiber.Router {
 }
 
 func (h *MenuHandler) GetCategoryTree(c fiber.Ctx) error {
-	lang_id, ok := c.Locals("langID").(uint)
+	lang_id, ok := localeExtractor.GetLangID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
@@ -56,7 +57,7 @@ func (h *MenuHandler) GetCategoryTree(c fiber.Ctx) error {
 }
 
 func (h *MenuHandler) GetBreadcrumb(c fiber.Ctx) error {
-	lang_id, ok := c.Locals("langID").(uint)
+	lang_id, ok := localeExtractor.GetLangID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
@@ -86,7 +87,7 @@ func (h *MenuHandler) GetBreadcrumb(c fiber.Ctx) error {
 }
 
 func (h *MenuHandler) GetTopMenu(c fiber.Ctx) error {
-	lang_id, ok := c.Locals("langID").(uint)
+	lang_id, ok := localeExtractor.GetLangID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))

app/delivery/web/api/restricted/productTranslation.go

@@ -6,6 +6,7 @@ import (
 	"git.ma-al.com/goc_daniel/b2b/app/config"
 	"git.ma-al.com/goc_daniel/b2b/app/service/productTranslationService"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/i18n"
+	"git.ma-al.com/goc_daniel/b2b/app/utils/localeExtractor"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/nullable"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/response"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/responseErrors"
@@ -41,7 +42,7 @@ func ProductTranslationHandlerRoutes(r fiber.Router) fiber.Router {
 
 // GetProductDescription returns the product description for a given product ID
 func (h *ProductTranslationHandler) GetProductDescription(c fiber.Ctx) error {
-	userID, ok := c.Locals("userID").(uint)
+	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))
@@ -72,7 +73,7 @@ func (h *ProductTranslationHandler) GetProductDescription(c fiber.Ctx) error {
 
 // SaveProductDescription saves the description for a given product ID, in given language
 func (h *ProductTranslationHandler) SaveProductDescription(c fiber.Ctx) error {
-	userID, ok := c.Locals("userID").(uint)
+	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))
@@ -109,7 +110,7 @@ func (h *ProductTranslationHandler) SaveProductDescription(c fiber.Ctx) error {
 
 // TranslateProductDescription returns translated product description
 func (h *ProductTranslationHandler) TranslateProductDescription(c fiber.Ctx) error {
-	userID, ok := c.Locals("userID").(uint)
+	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))

app/delivery/web/api/restricted/search.go

@@ -7,6 +7,7 @@ import (
 	"git.ma-al.com/goc_daniel/b2b/app/service/meiliService"
 	searchservice "git.ma-al.com/goc_daniel/b2b/app/service/searchService"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/i18n"
+	"git.ma-al.com/goc_daniel/b2b/app/utils/localeExtractor"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/nullable"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/response"
 	"git.ma-al.com/goc_daniel/b2b/app/utils/responseErrors"
@@ -36,7 +37,7 @@ func MeiliSearchHandlerRoutes(r fiber.Router) fiber.Router {
 }
 
 func (h *MeiliSearchHandler) CreateIndex(c fiber.Ctx) error {
-	id_lang, ok := c.Locals("langID").(uint)
+	id_lang, ok := localeExtractor.GetLangID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
@@ -49,12 +50,11 @@ func (h *MeiliSearchHandler) CreateIndex(c fiber.Ctx) error {
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, err)))
 	}
 
-	nothing := ""
+	return c.JSON(response.Make(nullable.GetNil(""), 0, i18n.T_(c, response.Message_OK)))
-	return c.JSON(response.Make(&nothing, 0, i18n.T_(c, response.Message_OK)))
 }
 
 func (h *MeiliSearchHandler) Search(c fiber.Ctx) error {
-	id_lang, ok := c.Locals("langID").(uint)
+	id_lang, ok := localeExtractor.GetLangID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
@@ -88,7 +88,7 @@ func (h *MeiliSearchHandler) Search(c fiber.Ctx) error {
 }
 
 func (h *MeiliSearchHandler) GetSettings(c fiber.Ctx) error {
-	id_lang, ok := c.Locals("langID").(uint)
+	id_lang, ok := localeExtractor.GetLangID(c)
 	if !ok {
 		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))

app/model/customer.go

@@ -82,6 +82,15 @@ type UserSession struct {
 	IsActive  bool         `json:"is_active"`
 }
 
+type UserLocale struct {
+	// User is the Target user if present, otherwise same as Original.
+	// User ought to be used in applications
+	User *Customer
+	// Original user is the one associated with auth token
+	OriginalUser *Customer
+	// Importantly, lang_id used in application is stored as OriginalUser.LangID
+}
+
 // ToSession converts User to UserSession
 func (u *Customer) ToSession() *UserSession {
 	return &UserSession{
@@ -98,6 +107,7 @@ func (u *Customer) ToSession() *UserSession {
 type LoginRequest struct {
 	Email    string `json:"email" form:"email"`
 	Password string `json:"password" form:"password"`
+	LangID   *uint  `json:"lang_id" form:"lang_id"`
 }
 
 // RegisterRequest represents the initial registration form data

app/model/productDescription.go

@@ -20,6 +20,7 @@ type ProductDescription struct {
 	DeliveryOutStock string `gorm:"column:delivery_out_stock;type:varchar(255)" json:"delivery_out_stock" form:"delivery_out_stock"`
 	Usage            string `gorm:"column:usage;type:text" json:"usage" form:"usage"`
 
+	ImageLink        string `gorm:"column:image_link" json:"image_link"`
 	ExistsInDatabase bool   `gorm:"-" json:"exists_in_database"`
 }
 

app/repos/productDescriptionRepo/productDescriptionRepo.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 
+	"git.ma-al.com/goc_daniel/b2b/app/config"
 	"git.ma-al.com/goc_daniel/b2b/app/db"
 	"git.ma-al.com/goc_daniel/b2b/app/model"
 	"git.ma-al.com/goc_daniel/b2b/app/model/dbmodel"
@@ -36,6 +37,27 @@ func (r *ProductDescriptionRepo) GetProductDescription(productID uint, productid
 			IDShop:    int32(constdata.SHOP_ID),
 			IDLang:    int32(productid_lang),
 		}).
+		Select(`
+			`+dbmodel.PsProductLangCols.IDProduct.TabCol()+` AS id_product,
+			`+dbmodel.PsProductLangCols.IDShop.TabCol()+` AS id_shop,
+			`+dbmodel.PsProductLangCols.IDLang.TabCol()+` AS id_lang,
+			`+dbmodel.PsProductLangCols.Description.TabCol()+` AS description,
+			`+dbmodel.PsProductLangCols.DescriptionShort.TabCol()+` AS description_short,
+			`+dbmodel.PsProductLangCols.LinkRewrite.TabCol()+` AS link_rewrite,
+			`+dbmodel.PsProductLangCols.MetaDescription.TabCol()+` AS meta_description,
+			`+dbmodel.PsProductLangCols.MetaKeywords.TabCol()+` AS meta_keywords,
+			`+dbmodel.PsProductLangCols.MetaTitle.TabCol()+` AS meta_title,
+			`+dbmodel.PsProductLangCols.Name.TabCol()+` AS name,
+			`+dbmodel.PsProductLangCols.AvailableNow.TabCol()+` AS available_now,
+			`+dbmodel.PsProductLangCols.AvailableLater.TabCol()+` AS available_later,
+			`+dbmodel.PsProductLangCols.DeliveryInStock.TabCol()+` AS delivery_in_stock,
+			`+dbmodel.PsProductLangCols.DeliveryOutStock.TabCol()+` AS delivery_out_stock,
+			`+dbmodel.PsProductLangCols.Usage.TabCol()+` AS `+"`usage`"+`,
+			CONCAT(?, '/', `+dbmodel.PsImageShopCols.IDImage.TabCol()+`, '-large_default/', `+dbmodel.PsProductLangCols.LinkRewrite.TabCol()+`, '.webp') AS image_link
+		`, config.Get().Image.ImagePrefix).
+		Joins("JOIN " + dbmodel.TableNamePsImageShop +
+			" ON " + dbmodel.PsImageShopCols.IDProduct.TabCol() + "=" + dbmodel.PsProductLangCols.IDProduct.TabCol() +
+			" AND " + dbmodel.PsImageShopCols.Cover.TabCol() + " = 1").
 		First(&ProductDescription).Error
 
 	if errors.Is(err, gorm.ErrRecordNotFound) {
@@ -52,10 +74,10 @@ func (r *ProductDescriptionRepo) GetProductDescription(productID uint, productid
 
 // If it doesn't exist, returns an error.
 func (r *ProductDescriptionRepo) CreateIfDoesNotExist(productID uint, productid_lang uint) error {
-	record := model.ProductDescription{
+	record := dbmodel.PsProductLang{
-		ProductID: productID,
+		IDProduct: int32(productID),
-		ShopID:    constdata.SHOP_ID,
+		IDShop:    int32(constdata.SHOP_ID),
-		LangID:    productid_lang,
+		IDLang:    int32(productid_lang),
 	}
 
 	err := db.Get().

app/service/authService/auth.go

@@ -83,6 +83,15 @@ func (s *AuthService) Login(req *model.LoginRequest) (*model.AuthResponse, strin
 	// Update last login time
 	now := time.Now()
 	user.LastLoginAt = &now
+
+	if req.LangID != nil {
+		_, err := s.GetLangISOCode(*req.LangID)
+		if err != nil {
+			return nil, "", responseErrors.ErrBadLangID
+		}
+		user.LangID = *req.LangID
+	}
+
 	s.db.Save(&user)
 
 	// Generate access token (JWT)

app/service/productTranslationService/productTranslationService.go

@@ -89,13 +89,24 @@ func (s *ProductTranslationService) GetProductDescription(userID uint, productID
 // Updates relevant fields with the "updates" map
 func (s *ProductTranslationService) SaveProductDescription(userID uint, productID uint, productLangID uint, updates map[string]string) error {
 	// only some fields can be affected
-	allowedFields := []string{"description", "description_short", "meta_description", "meta_title", "name", "available_now", "available_later", "usage"}
+	allowedFields := []string{"description", "description_short", "link_rewrite", "meta_description", "meta_keywords", "meta_title", "name",
+		"available_now", "available_later", "delivery_in_stock", "delivery_out_stock", "usage"}
 	for key := range updates {
 		if !slices.Contains(allowedFields, key) {
 			return responseErrors.ErrBadField
 		}
 	}
 
+	if text, exists := updates["link_rewrite"]; exists {
+		// sanitize and check that link_rewrite is a valid url slug
+		sanitized := SanitizeSlug(text)
+		if !IsValidSlug(sanitized) {
+			return responseErrors.ErrInvalidURLSlug
+		}
+
+		updates["link_rewrite"] = sanitized
+	}
+
 	// check that fields description, description_short and usage, if they exist, have a valid html format
 	mustBeHTML := []string{"description", "description_short", "usage"}
 	for i := 0; i < len(mustBeHTML); i++ {
@@ -136,20 +147,28 @@ func (s *ProductTranslationService) TranslateProductDescription(userID uint, pro
 
 	fields := []*string{&productDescription.Description,
 		&productDescription.DescriptionShort,
+		&productDescription.LinkRewrite,
 		&productDescription.MetaDescription,
+		&productDescription.MetaKeywords,
 		&productDescription.MetaTitle,
 		&productDescription.Name,
 		&productDescription.AvailableNow,
 		&productDescription.AvailableLater,
+		&productDescription.DeliveryInStock,
+		&productDescription.DeliveryOutStock,
 		&productDescription.Usage,
 	}
 	keys := []string{"translation_of_product_description",
 		"translation_of_product_short_description",
+		"translation_of_product_url_link",
 		"translation_of_product_meta_description",
+		"translation_of_product_meta_keywords",
 		"translation_of_product_meta_title",
 		"translation_of_product_name",
-		"translation_of_product_available_now",
+		"translation_of_product_available_now_message",
-		"translation_of_product_available_later",
+		"translation_of_product_available_later_message",
+		"translation_of_product_delivery_in_stock_message",
+		"translation_of_product_delivery_out_stock_message",
 		"translation_of_product_usage",
 	}
 

app/service/productTranslationService/sanitizeURLSlug.go

@@ -0,0 +1,69 @@
+package productTranslationService
+
+import (
+	"strings"
+	"unicode"
+
+	constdata "git.ma-al.com/goc_daniel/b2b/app/utils/const_data"
+	"github.com/dlclark/regexp2"
+	"golang.org/x/text/runes"
+	"golang.org/x/text/transform"
+	"golang.org/x/text/unicode/norm"
+)
+
+func IsValidSlug(s string) bool {
+	var slug_regex2 = regexp2.MustCompile(constdata.SLUG_REGEX, regexp2.None)
+
+	ok, _ := slug_regex2.MatchString(s)
+	return ok
+}
+
+func SanitizeSlug(s string) string {
+	s = strings.TrimSpace(strings.ToLower(s))
+
+	// First apply explicit transliteration for language-specific letters.
+	s = transliterateWithTable(s)
+
+	// Then normalize and strip any remaining combining marks.
+	s = removeDiacritics(s)
+
+	// Replace all non-alphanumeric runs with "-"
+	var non_alphanum_regex2 = regexp2.MustCompile(constdata.NON_ALNUM_REGEX, regexp2.None)
+	s, _ = non_alphanum_regex2.Replace(s, "-", -1, -1)
+
+	// Collapse repeated "-" and trim edges
+	var multi_dash_regex2 = regexp2.MustCompile(constdata.MULTI_DASH_REGEX, regexp2.None)
+	s, _ = multi_dash_regex2.Replace(s, "-", -1, -1)
+
+	s = strings.Trim(s, "-")
+
+	return s
+}
+
+func transliterateWithTable(s string) string {
+	var b strings.Builder
+	b.Grow(len(s))
+
+	for _, r := range s {
+		if repl, ok := constdata.TRANSLITERATION_TABLE[r]; ok {
+			b.WriteString(repl)
+		} else {
+			b.WriteRune(r)
+		}
+	}
+
+	return b.String()
+}
+
+func removeDiacritics(s string) string {
+	t := transform.Chain(
+		norm.NFD,
+		runes.Remove(runes.In(unicode.Mn)),
+		norm.NFC,
+	)
+	out, _, err := transform.String(t, s)
+	if err != nil {
+		return s
+	}
+	return out
+}

app/utils/const_data/consts.go

@@ -11,5 +11,29 @@ const CATEGORY_TREE_ROOT_ID = 2
 const MAX_AMOUNT_OF_CARTS_PER_USER = 10
 const DEFAULT_NEW_CART_NAME = "new cart"
 
-const USER_LOCALES_NAME = "user"
+const USER_LOCALE = "user"
-const USER_LOCALES_ID = "userID"
+
+// Slug sanitization
+const NON_ALNUM_REGEX = `[^a-z0-9]+`
+const MULTI_DASH_REGEX = `-+`
+const SLUG_REGEX = `^[a-z0-9]+(?:-[a-z0-9]+)*$`
+
+// Currently supports only German+Polish specific cases
+var TRANSLITERATION_TABLE = map[rune]string{
+	// German
+	'ä': "ae",
+	'ö': "oe",
+	'ü': "ue",
+	'ß': "ss",
+
+	// Polish
+	'ą': "a",
+	'ć': "c",
+	'ę': "e",
+	'ł': "l",
+	'ń': "n",
+	'ó': "o",
+	'ś': "s",
+	'ż': "z",
+	'ź': "z",
+}

app/utils/localeExtractor/localeExtractor.go

@@ -0,0 +1,23 @@
+package localeExtractor
+
+import (
+	"git.ma-al.com/goc_daniel/b2b/app/model"
+	constdata "git.ma-al.com/goc_daniel/b2b/app/utils/const_data"
+	"github.com/gofiber/fiber/v3"
+)
+
+func GetLangID(c fiber.Ctx) (uint, bool) {
+	user_locale, ok := c.Locals(constdata.USER_LOCALE).(*model.UserLocale)
+	if !ok || user_locale.OriginalUser == nil {
+		return 0, false
+	}
+	return user_locale.OriginalUser.LangID, true
+}
+
+func GetUserID(c fiber.Ctx) (uint, bool) {
+	user_locale, ok := c.Locals(constdata.USER_LOCALE).(*model.UserLocale)
+	if !ok || user_locale.User == nil {
+		return 0, false
+	}
+	return user_locale.User.ID, true
+}

app/utils/responseErrors/responseErrors.go

@@ -42,6 +42,7 @@ var (
 	// Typed errors for product description handler
 	ErrBadAttribute   = errors.New("bad or missing attribute value in header")
 	ErrBadField       = errors.New("this field can not be updated")
+	ErrInvalidURLSlug = errors.New("URL slug does not obey the industry standard")
 	ErrInvalidXHTML   = errors.New("text is not in xhtml format")
 	ErrAIResponseFail = errors.New("AI responded with failure")
 	ErrAIBadOutput    = errors.New("AI response does not obey the format")
@@ -136,6 +137,8 @@ func GetErrorCode(c fiber.Ctx, err error) string {
 		return i18n.T_(c, "error.err_bad_attribute")
 	case errors.Is(err, ErrBadField):
 		return i18n.T_(c, "error.err_bad_field")
+	case errors.Is(err, ErrInvalidURLSlug):
+		return i18n.T_(c, "error.invalid_url_slug")
 	case errors.Is(err, ErrInvalidXHTML):
 		return i18n.T_(c, "error.err_invalid_html")
 	case errors.Is(err, ErrAIResponseFail):
@@ -195,6 +198,7 @@ func GetErrorStatus(err error) int {
 		errors.Is(err, ErrInvalidPassword),
 		errors.Is(err, ErrBadAttribute),
 		errors.Is(err, ErrBadField),
+		errors.Is(err, ErrInvalidURLSlug),
 		errors.Is(err, ErrInvalidXHTML),
 		errors.Is(err, ErrBadPaging),
 		errors.Is(err, ErrNoRootFound),

bruno/b2b-daniel/list-products.yml

@@ -5,7 +5,7 @@ info:
 
 http:
   method: GET
-  url: http://localhost:3000/api/v1/restricted/list/list-products?p=1&elems=10
+  url: http://localhost:3000/api/v1/restricted/list/list-products?p=1&elems=10&target_user_id=2
   params:
     - name: p
       value: "1"
@@ -13,6 +13,9 @@ http:
     - name: elems
       value: "10"
       type: query
+    - name: target_user_id
+      value: "2"
+      type: query
 
 settings:
   encodeUrl: true

bruno/b2b-daniel/translate-product-description.yml

@@ -0,0 +1,28 @@
+info:
+  name: translate-product-description
+  type: http
+  seq: 20
+
+http:
+  method: GET
+  url: http://localhost:3000/api/v1/restricted/product-translation/translate-product-description?productID=51&productFromLangID=1&productToLangID=3&model=Google
+  params:
+    - name: productID
+      value: "51"
+      type: query
+    - name: productFromLangID
+      value: "1"
+      type: query
+    - name: productToLangID
+      value: "3"
+      type: query
+    - name: model
+      value: Google
+      type: query
+  auth: inherit
+
+settings:
+  encodeUrl: true
+  timeout: 0
+  followRedirects: true
+  maxRedirects: 5

storage/folder/a.txt

@@ -0,0 +1 @@
+This is a test.