Too many things to remember all of them

Finally got the mail queue working
Oh yeah, queueing
Added a TOTP provider which doesn't do anything much yet
Probably a hell of a lot of other things that I just can't remember

core/classes/mail.py

@@ -21,15 +21,16 @@ class BaseMailProvider:
     def send_mail(self, subject, content, recipients, cc=[], bcc=[], headers={}, sender=getValue("core.mail.sender", "expephalon@localhost")):
         message = email.message_from_string(content)
         headers["From"] = sender
-        headers["To"] = ",".join(recipients)
-        headers["Cc"] = ",".join(cc)
-        headers["Bcc"] = ",".join(bcc)
+        headers["To"] = recipients if type(recipients) == str else ",".join(recipients)
+        headers["Cc"] = cc if type(cc) == str else ",".join(cc)
+        headers["Bcc"] = bcc if type(bcc) == str else ",".join(bcc)
         headers["Subject"] = subject
         headers["Message-ID"] = email.utils.make_msgid("expephalon", urlparse(getValue("core.base_url", "http://localhost/").split(":")[1]).netloc)
         headers["Date"] = email.utils.formatdate()
         for header, value in headers.items():
+            if value:
                 message.add_header(header, value)
-        self.send_message(message)
+        return self.send_message(message)
 
 class SMTPMailProvider(BaseMailProvider):
     def __init__(self, host=getValue("core.smtp.host", "localhost"), port=int(getValue("core.smtp.port", 0)), username=getValue("core.smtp.username", "") or None, password=getValue("core.smtp.password", "")):
@@ -42,4 +43,4 @@ class SMTPMailProvider(BaseMailProvider):
         return "SMTP Mail"
 
     def send_message(self, message):
-        self.smtp.send_message(message)
+        return self.smtp.send_message(message)

core/forms/auth.py

@@ -18,3 +18,6 @@ class OTPVerificationForm(Form):
 class PWResetForm(Form):
     password1 = CharField(widget=PasswordInput)
     password2 = CharField(widget=PasswordInput)
+
+class PWRequestForm(Form):
+    email = EmailField()

core/helpers/auth.py

@@ -0,0 +1,2 @@
+def generate_pwreset_mail(user, token):
+    pass

core/helpers/mail.py

@@ -1,4 +1,5 @@
 from core.modules.mail import providers
+from core.tasks.mail import send_mail as send_mail_task
 
 from dbsettings.functions import getValue
 
@@ -8,5 +9,12 @@ def get_provider_by_name(name, fallback=True):
 def get_default_provider(fallback=True):
     return get_provider_by_name(getValue("core.email.provider", "smtp"), fallback)
 
-def send_mail(provider=None, *args):
-    return get_provider_by_name(provider)().mail(*args)
+def send_mail(provider=get_default_provider(), **kwargs):
+    provider = get_provider_by_name(provider) if type(provider) == str else provider
+    return send_mail_task.delay(provider, **kwargs)
+
+def simple_send_mail(subject, content, recipients, cc=[], bcc=[], headers={}):
+    return send_mail(subject=subject, content=content, recipients=recipients, cc=cc, bcc=bcc, headers=headers)
+
+def fetch_templates(template_name):
+    pass

core/tasks/__init__.py

@@ -0,0 +1 @@
+from core.tasks.mail import *

core/tasks/mail.py

@@ -0,0 +1,5 @@
+from celery import shared_task
+
+@shared_task
+def send_mail(provider=None, **kwargs):
+    return provider().send_mail(**kwargs)

core/views/auth.py

@@ -1,14 +1,16 @@
 from django.conf import settings
 from django.views.generic import FormView, View
-from django.contrib.auth import authenticate, login, logout
+from django.contrib.auth import authenticate, login, logout, get_user_model
 from django.shortcuts import redirect
 from django.core.exceptions import PermissionDenied
 from django.contrib import messages
 from django.utils import timezone
 
-from core.forms import LoginForm, OTPSelectorForm, OTPVerificationForm, PWResetForm
+from core.forms import LoginForm, OTPSelectorForm, OTPVerificationForm, PWResetForm, PWRequestForm
 from core.models.auth import LoginSession, PWResetToken
 from core.helpers.otp import get_user_otps, get_otp_choices, get_otp_by_name
+from core.helpers.mail import send_mail
+from core.helpers.auth import generate_pwreset_mail
 
 from dbsettings.functions import getValue
 
@@ -153,3 +155,16 @@ class PWResetView(FormView):
         user.save()
         messages.success(self.request, "Your password has been changed. You can now login with your new password.")
         return redirect("login")
+
+class PWRequestView(FormView):
+    template_name = f"{settings.EXPEPHALON_BACKEND}/auth/pwrequest.html"
+    form_class = PWRequestForm
+
+    def form_valid(self, form):
+        try:
+            user = get_user_model().objects.get(username=form.cleaned_data["email"])
+            token = PWResetToken.objects.create(user=user)
+
+        finally:
+            messages.success(self.request, "If a matching account was found, you should shortly receive an email containing password reset instructions. If you have not received this message after five minutes, please verify that you have entered the correct email address, or contact support.")
+            return redirect("login")

debian-packages.txt

@@ -0,0 +1,2 @@
+rabbitmq-server
+memcached

expephalon/__init__.py

@@ -0,0 +1,3 @@
+from expephalon.celery import app as celery_app
+
+__all__ = ('celery_app',)

expephalon/celery.py

@@ -0,0 +1,22 @@
+import os
+
+from celery import Celery
+
+# set the default Django settings module for the 'celery' program.
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'expephalon.settings')
+
+app = Celery('expephalon')
+
+# Using a string here means the worker doesn't have to serialize
+# the configuration object to child processes.
+# - namespace='CELERY' means all celery-related configuration keys
+#   should have a `CELERY_` prefix.
+app.config_from_object('django.conf:settings', namespace='CELERY')
+
+# Load task modules from all registered Django app configs.
+app.autodiscover_tasks()
+
+
+@app.task(bind=True)
+def debug_task(self):
+    print('Request: {0!r}'.format(self.request))

expephalon/custom_settings.dist.py

@@ -29,7 +29,8 @@ DEBUG = True
 
 ALLOWED_HOSTS = []
 
-# To add frontend or backend templates, move them to the /templates subdirectory, then insert their name (i.e. the directory name) in the appropriate field. Move any required statics to the /static subdirectory.
+# To add frontend or backend templates, move them to the /templates subdirectory, then insert their name (i.e. the directory name) in the 
+# appropriate field. Move any required statics to the /static subdirectory
 
 EXPEPHALON_FRONTEND = "frontend"
 EXPEPHALON_BACKEND = "backend"
@@ -37,3 +38,15 @@ EXPEPHALON_BACKEND = "backend"
 # To add Expephalon modules, move them to the Expephalon root directory, then add them to this list
 
 EXPEPHALON_MODULES = []
+
+# To use memcached for caching, add IP:PORT or unix:PATH - default setting should be good for an unmodified local setup of memcached
+
+MEMCACHED_LOCATION = ["127.0.0.1:11211"]
+
+# RabbitMQ is required for queues to work - default settings should be good for an unmodified local setup of RabbitMQ, 
+# but you might still want to configure it to use a password
+
+RABBITMQ_LOCATION = "127.0.0.1:5672"
+RABBITMQ_VHOST = ""
+RABBITMQ_USER = "guest"
+RABBITMQ_PASS = "guest"

expephalon/settings.py

@@ -18,6 +18,8 @@ INSTALLED_APPS = [
     'bootstrap4',
     'core',
     'dbsettings',
+    'django_celery_results',
+    'django_celery_beat',
 ] + EXPEPHALON_MODULES
 
 MIDDLEWARE = [
@@ -123,3 +125,22 @@ PASSWORD_HASHERS = [
 
 DEFAULT_FILE_STORAGE = 'storages.backends.s3boto3.S3Boto3Storage'
 AWS_DEFAULT_ACL = None
+
+# Caching
+
+if MEMCACHED_LOCATION:
+    CACHES = {
+        'default': {
+            'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
+            'LOCATION': MEMCACHED_LOCATION,
+        }
+    }
+
+# Queue
+
+CELERY_TASK_SERIALIZER = "pickle"
+CELERY_RESULT_SERIALIZER = "pickle"
+CELERY_ACCEPT_CONTENT = ['pickle']
+CELERY_CACHE_BACKEND = 'default'
+CELERY_BROKER_URL = f"amqp://{RABBITMQ_USER}:{RABBITMQ_PASS}@{RABBITMQ_LOCATION}/{RABBITMQ_VHOST}"
+CELERY_BEAT_SCHEDULER = "django_celery_beat.schedulers:DatabaseScheduler"

mail_templates/pwreset_mail.txt

@@ -0,0 +1,11 @@
+Hi {{ first_name }},
+
+Somebody (hopefully you) requested a new password for your {{ sitename }} account. If this was you, please click the following link to reset your password:
+
+{{ link }}
+
+If it was not you, you can ignore this message. The link will expire in 24 hours.
+
+Best regards
+
+Your {{ sitename }} Team

requirements.txt

@@ -8,3 +8,6 @@ django-phonenumber-field[phonenumbers]
 django-bootstrap4
 wheel
 git+https://kumig.it/kumisystems/django-dbsettings.git
+celery
+django-celery-results
+django-celery-beat

totp/apps.py

@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class TotpConfig(AppConfig):
+    name = 'totp'

totp/models.py

@@ -0,0 +1,12 @@
+from django.db.models import Model, CharField, ForeignKey, CASCADE, DateTimeField
+from django.contrib.auth import get_user_model
+
+from dbsettings.functions import getValue
+
+import pyotp
+
+# Create your models here.
+
+class TOTPUser(Model):
+    secret = CharField(max_length=32, default=pyotp.random_base32())
+    user = ForeignKey(get_user_model(), CASCADE)

totp/otp.py

@@ -0,0 +1,29 @@
+from core.classes.otp import BaseOTPProvider
+from totp.models import TOTPUser
+
+from dbsettings.functions import getValue
+
+from django.utils import timezone
+
+import pyotp
+
+class TOTP(BaseOTPProvider):
+    @property
+    def get_name(self):
+        return "Time-based OTP"
+
+    @property
+    def is_active(self):
+        return True
+
+    def start_authentication(self, user):
+        return "Please enter the token displayed in your app."
+
+    def validate_token(self, user, token):
+        try:
+            otpuser = TOTPUser.objects.get(user=user)
+            return pyotp.TOTP(otpuser.secret).verify(token)
+        except OTPUser.DoesNotExist:
+            return False
+
+OTPPROVIDERS = {"totp": TOTP}

totp/requirements.txt

@@ -0,0 +1 @@
+pyotp