98 lines
2.9 KiB
Python
98 lines
2.9 KiB
Python
# Copyright © 2022 Aravinth Manivannan <realaravinth@batsense.net>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from datetime import datetime, timezone
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from django.utils.crypto import get_random_string
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from django.core.mail import send_mail
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from django.shortcuts import redirect
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from django.template.loader import render_to_string
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from django.urls import reverse
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from django.utils.http import urlencode
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from django.conf import settings
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def gen_secret() -> str:
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"""
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Generate random secret
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"""
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return get_random_string(32)
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def send_verification_email(request, challenge):
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verification_link = (
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f"{request.scheme}://{request.get_host()}{challenge.verification_link()}"
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)
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ctx = {
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"link": verification_link,
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"username": challenge.owned_by.username,
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}
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body = render_to_string(
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"accounts/emails/verification-link.txt",
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context=ctx,
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)
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email = challenge.owned_by.email
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sender = settings.DEFAULT_FROM_EMAIL
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send_mail(
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subject="[Hostea] Please confirm your email address",
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message=body,
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from_email=f"No reply Hostea<{sender}>", # TODO read from settings.py
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recipient_list=[email],
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)
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EPOCH = datetime.utcfromtimestamp(0).astimezone(tz=timezone.utc)
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def since_epoch(date: datetime = None) -> int:
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"""Get current time since Unix epoch in seconds"""
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if not date:
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date = datetime.now(timezone.utc)
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date.astimezone(tz=timezone.utc)
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return int((date - EPOCH).total_seconds())
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class ConfirmAccess:
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key = "confirm_access"
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@staticmethod
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def redirect_to_sudo(request):
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ctx = {"next": request.path}
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return redirect(f"{reverse('accounts.sudo')}?{urlencode(ctx)}")
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@classmethod
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def is_valid(cls, request):
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if cls.key in request.session:
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if (since_epoch() - request.session[cls.key]) < settings.HOSTEA["ACCOUNTS"][
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"SUDO_TTL"
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]:
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return True
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return False
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@classmethod
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def validate_decorator(cls, request, fn, *args, **kwargs):
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if cls.is_valid(request):
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return fn(request, *args, **kwargs)
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else:
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return cls.redirect_to_sudo(request)
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@classmethod
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def set(cls, request):
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request.session[cls.key] = since_epoch()
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