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path: root/services/context/user.go
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// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT

package context

import (
	"fmt"
	"net/http"
	"strings"

	org_model "code.gitea.io/gitea/models/organization"
	user_model "code.gitea.io/gitea/models/user"
	"code.gitea.io/gitea/modules/context"
)

// UserAssignmentWeb returns a middleware to handle context-user assignment for web routes
func UserAssignmentWeb() func(ctx *context.Context) {
	return func(ctx *context.Context) {
		userAssignment(ctx, func(status int, title string, obj interface{}) {
			err, ok := obj.(error)
			if !ok {
				err = fmt.Errorf("%s", obj)
			}
			if status == http.StatusNotFound {
				ctx.NotFound(title, err)
			} else {
				ctx.ServerError(title, err)
			}
		})
	}
}

// UserAssignmentAPI returns a middleware to handle context-user assignment for api routes
func UserAssignmentAPI() func(ctx *context.APIContext) {
	return func(ctx *context.APIContext) {
		userAssignment(ctx.Context, ctx.Error)
	}
}

func userAssignment(ctx *context.Context, errCb func(int, string, interface{})) {
	username := ctx.Params(":username")

	if ctx.IsSigned && ctx.Doer.LowerName == strings.ToLower(username) {
		ctx.ContextUser = ctx.Doer
	} else {
		var err error
		ctx.ContextUser, err = user_model.GetUserByName(ctx, username)
		if err != nil {
			if user_model.IsErrUserNotExist(err) {
				if redirectUserID, err := user_model.LookupUserRedirect(username); err == nil {
					context.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)
			}
		} else {
			if ctx.ContextUser.IsOrganization() {
				if ctx.Org == nil {
					ctx.Org = &context.Organization{}
				}
				ctx.Org.Organization = (*org_model.Organization)(ctx.ContextUser)
				ctx.Data["Org"] = ctx.Org.Organization
			}
		}
	}
}