python-tdd/src/apps/lyric/views.py

from django.contrib import auth, messages
from django.core.mail import send_mail
from django.shortcuts import redirect
from django.urls import reverse
from .models import Token

def send_login_email(request):
    email = request.POST["email"]
    token = Token.objects.create(email=email)
    url = request.build_absolute_uri(
        reverse("login") + "?token=" + str(token.uid),
    )
    message_body = f"Use this magic link to login to your Dashboard:\n\n{url}"
    send_mail(
        "A magic login link to your Dashboard",
        message_body,
        "adman@howdy.earthmanrpg.me",
        [email],
    )
    messages.success(
        request,
        "Check your email!—there you'll find a magic login link. But hurry… it's only temporary!",
    )
    return redirect("/")

def login(request):
    uid = request.GET.get("token")
    user = auth.authenticate(request, uid=uid)
    if user is not None:
        user.backend = "apps.lyric.authentication.PasswordlessAuthenticationBackend"
        auth.login(request, user)
    else:
        messages.error(request, "Invalid login link!—please request a new one")    
    return redirect("/")