games/jeoparty/userhandling.go

package main

import (
	"log"
	"math/rand"
	"net/http"

	glws "git.alfi.li/gamelang/frontend/webserver"
	gamelangpb "git.alfi.li/gamelang/protobuf/gamelang"
	"github.com/labstack/echo/v4"
)

func userEndpoints(jg *JeopardyGameServer) []glws.Endpoint {
	endpoints := []glws.Endpoint{}
	endpoints = append(endpoints, glws.Endpoint{"GET", "/user", func(ctx echo.Context) error {
		log.Print("/user: get")

		log.Print("/user: sending register form")
		return ctx.Render(http.StatusOK, "registerform", "")

	}})

	// POST to /user creates a user
	endpoints = append(endpoints, glws.Endpoint{"POST", "/user", func(ctx echo.Context) error {
		username := ctx.FormValue("username")
		password := ctx.FormValue("password")

		log.Printf("new user request: %v", username)

		newUser := gamelangpb.User{Name: username, Password: []byte(password)}
		id := rand.Uint32()
		name := newUser.GetName()
		_, err := jg.um.Create(id, name, password)
		//user, err := jg.userclient.CreateUser(context.Background(), &newUser)
		if err != nil {
			return ctx.String(501, "user creation failed")
		}

		jg.webserver.NewSession(newUser, ctx)

		log.Printf("new user created: %v", username)
		return ctx.Redirect(302, "/")
	}})

	endpoints = append(endpoints, glws.Endpoint{"GET", "/login", func(ctx echo.Context) error {
		log.Print("/login: get")
		// check if the login page was called with failed parameter (set by /login POST)
		failedBefore := false
		if value := ctx.FormValue("failed"); value == "1" {
			failedBefore = true
		}

		ok, user := jg.webserver.CheckSess(ctx)
		if ok {
			// logged in
			log.Printf("/login: user %v logged in", user.Name)
			return ctx.String(http.StatusOK, "hello, "+user.Name+"\nyou are logged in.")
		}
		// not logged in
		log.Print("/login: not logged in")
		return ctx.Render(http.StatusOK, "loginform", failedBefore)

	}})

	endpoints = append(endpoints, glws.Endpoint{"POST", "/login", func(ctx echo.Context) error {
		log.Print("/login: post")
		username := ctx.FormValue("username")
		password := ctx.FormValue("password")

		// if the session is already set, the user is already logged in
		ok, _ := jg.webserver.CheckSess(ctx)
		if ok {
			return ctx.String(http.StatusOK, "you are already logged in.")
		}

		log.Printf("user login attempt: %v", username)
		//checkuser := gamelangpb.User{Name: username, Password: []byte(password)}
		user, ok := jg.um.CheckUser(username, password) //jg.userclient.CheckUser(context.Background(), &checkuser)
		if ok {                                         //err == nil {
			jg.webserver.NewSession(user, ctx)
			log.Printf("user login suceeded: %v", username)
			return ctx.String(http.StatusOK, "hello, "+username+"\nyou are now logged in.")
		}
		log.Printf("user login failed: %v\n%s", username)
		return ctx.Redirect(302, "/login?failed=1")
	}})

	return endpoints
}