// Copyright 2022 The Gitea Authors. All rights reserved.// SPDX-License-Identifier: MIT package context import (	"fmt"	"net/http"	"strings" 	user_model "forgejo.org/models/user") // UserAssignmentWeb returns a middleware to handle context-user assignment for web routesfunc UserAssignmentWeb() func(ctx *Context) {	return func(ctx *Context) {		errorFn := func(status int, title string, obj any) {			err, ok := obj.(error)			if !ok {				err = fmt.Errorf("%s", obj)			}			if status == http.StatusNotFound {				ctx.NotFound(title, err)			} else {				ctx.ServerError(title, err)			}		}		ctx.ContextUser = userAssignment(ctx.Base, ctx.Doer, errorFn)		ctx.Data["ContextUser"] = ctx.ContextUser	}} // UserIDAssignmentAPI returns a middleware to handle context-user assignment for api routesfunc UserIDAssignmentAPI() func(ctx *APIContext) {	return func(ctx *APIContext) {		userID := ctx.ParamsInt64(":user-id") 		if ctx.IsSigned && ctx.Doer.ID == userID {			ctx.ContextUser = ctx.Doer		} else {			var err error			ctx.ContextUser, err = user_model.GetUserByID(ctx, userID)			if err != nil {				if user_model.IsErrUserNotExist(err) {					ctx.Error(http.StatusNotFound, "GetUserByID", err)				} else {					ctx.Error(http.StatusInternalServerError, "GetUserByID", err)				}			}		}	}} // UserAssignmentAPI returns a middleware to handle context-user assignment for api routesfunc UserAssignmentAPI() func(ctx *APIContext) {	return func(ctx *APIContext) {		ctx.ContextUser = userAssignment(ctx.Base, ctx.Doer, ctx.Error)	}} func userAssignment(ctx *Base, doer *user_model.User, errCb func(int, string, any)) (contextUser *user_model.User) {	username := ctx.Params(":username") 	if doer != nil && doer.LowerName == strings.ToLower(username) {		contextUser = doer	} else {		var err error		contextUser, err = user_model.GetUserByName(ctx, username)		if err != nil {			if user_model.IsErrUserNotExist(err) {				if redirectUserID, err := user_model.LookupUserRedirect(ctx, username); err == nil {					RedirectToUser(ctx, username, redirectUserID)				} else if user_model.IsErrUserRedirectNotExist(err) {					errCb(http.StatusNotFound, "GetUserByName", err)				} else {					errCb(http.StatusInternalServerError, "LookupUserRedirect", err)				}			} else {				errCb(http.StatusInternalServerError, "GetUserByName", err)			}		}	}	return contextUser}