Add management command for sending "scheduled for deletion" warnings

hc/accounts/admin.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+from datetime import timedelta as td
+
 from django.contrib import admin
 from django.contrib.auth import login as auth_login
 from django.contrib.auth.admin import UserAdmin
@@ -55,7 +57,6 @@ class ProfileFieldset(Fieldset):
         "next_report_date",
         "nag_period",
         "next_nag_date",
-        "deletion_notice_date",
         "token",
         "sort",
     )
@@ -76,6 +77,14 @@ class TeamFieldset(Fieldset):
     )
 
 
+class DeletionFieldset(Fieldset):
+    name = "Deletion"
+    fields = (
+        "deletion_notice_date",
+        "deletion_scheduled_date",
+    )
+
+
 class NumChecksFilter(admin.SimpleListFilter):
     title = "check count"
 
@@ -133,11 +142,15 @@ class ProfileAdmin(admin.ModelAdmin):
         "send_report",
         "send_nag",
         "remove_totp",
-        "mark_for_deletion",
+        "mark_for_deletion_in_month",
         "unmark_for_deletion",
     )
 
-    fieldsets = (ProfileFieldset.tuple(), TeamFieldset.tuple())
+    fieldsets = (
+        ProfileFieldset.tuple(),
+        TeamFieldset.tuple(),
+        DeletionFieldset.tuple(),
+    )
 
     def get_queryset(self, request):
         qs = super(ProfileAdmin, self).get_queryset(request)
@@ -201,8 +214,8 @@ class ProfileAdmin(admin.ModelAdmin):
 
         self.message_user(request, "Removed TOTP for %d profile(s)" % qs.count())
 
-    def mark_for_deletion(self, request, qs):
+    def mark_for_deletion_in_month(self, request, qs):
-        qs.update(deletion_scheduled_date=now())
+        qs.update(deletion_scheduled_date=now() + td(days=31))
         self.message_user(request, "%d user(s) marked for deletion" % qs.count())
 
     def unmark_for_deletion(self, request, qs):

hc/accounts/management/commands/senddeletionscheduled.py

@@ -0,0 +1,38 @@
+from __future__ import annotations
+
+import time
+
+from django.conf import settings
+from django.core.management.base import BaseCommand
+from django.utils.timezone import now
+
+from hc.accounts.models import Profile
+from hc.lib import emails
+
+
+class Command(BaseCommand):
+    help = """Send warnings to accounts marked for deletion. """
+
+    def pause(self):
+        time.sleep(1)
+
+    def handle(self, *args, **options):
+        q = Profile.objects.order_by("id")
+        q = q.filter(deletion_scheduled_date__gt=now())
+
+        sent = 0
+        for profile in q:
+            self.stdout.write(f"Sending notice to {profile.user.email}")
+
+            ctx = {
+                "email": profile.user.email,
+                "support_email": settings.SUPPORT_EMAIL,
+                "deletion_scheduled_date": profile.deletion_scheduled_date,
+            }
+            emails.deletion_scheduled(profile.user.email, ctx)
+            sent += 1
+
+            # Throttle so we don't send too many emails at once:
+            self.pause()
+
+        return f"Done!\nNotices sent: {sent}\n"

hc/accounts/tests/test_senddeletionscheduled.py

@@ -0,0 +1,50 @@
+from __future__ import annotations
+
+import re
+from datetime import timedelta as td
+from unittest.mock import Mock
+
+from django.core import mail
+from django.utils.timezone import now
+
+from hc.accounts.management.commands.senddeletionscheduled import Command
+from hc.test import BaseTestCase
+
+
+def counts(result):
+    """Extract integer values from command's return value."""
+    return [int(s) for s in re.findall(r"\d+", result)]
+
+
+class SendDeletionNoticesTestCase(BaseTestCase):
+    def test_it_skips_profiles_with_deletion_scheduled_date_not_set(self):
+        cmd = Command(stdout=Mock())
+        cmd.pause = Mock()  # don't pause for 1s
+
+        result = cmd.handle()
+        self.assertEqual(counts(result), [0])
+        self.assertEqual(len(mail.outbox), 0)
+
+    def test_it_sends_notice(self):
+        self.profile.deletion_scheduled_date = now() + td(days=31)
+        self.profile.save()
+
+        cmd = Command(stdout=Mock())
+        cmd.pause = Mock()  # don't pause for 1s
+
+        result = cmd.handle()
+        self.assertEqual(counts(result), [1])
+
+        email = mail.outbox[0]
+        self.assertEqual(email.subject, "Account Deletion Warning")
+
+    def test_it_skips_profiles_with_deletion_scheduled_date_in_past(self):
+        self.profile.deletion_scheduled_date = now() - td(minutes=1)
+        self.profile.save()
+
+        cmd = Command(stdout=Mock())
+        cmd.pause = Mock()  # don't pause for 1s
+
+        result = cmd.handle()
+        self.assertEqual(counts(result), [0])
+        self.assertEqual(len(mail.outbox), 0)

hc/lib/emails.py

@@ -104,6 +104,11 @@ def deletion_notice(to, ctx, headers={}):
     send(m, block=True)
 
 
+def deletion_scheduled(to, ctx, headers={}):
+    m = make_message("deletion-scheduled", to, ctx, headers=headers)
+    send(m, block=True)
+
+
 def sms_limit(to, ctx):
     send(make_message("sms-limit", to, ctx))
 

templates/base.html

@@ -66,7 +66,7 @@
     {% debug_warning %}
     {% if request.user.is_authenticated and request.profile.deletion_scheduled_date %}
     <div id="account-warning">
-        Warning: Your account is scheduled for deletion.
+        Warning: Your account is scheduled for deletion on {{ request.profile.deletion_scheduled_date.date }}.
         <a href="mailto:{% support_email %}">Contact support</a> to resolve.
     </div>
     {% endif %}

templates/emails/deletion-scheduled-body-html.html

@@ -0,0 +1,17 @@
+{% extends "emails/base.html" %}
+{% load hc_extras %}
+
+{% block content %}
+Hello,<br /><br />
+
+Your {% site_name %} account is
+<strong>scheduled for deletion on {{ deletion_scheduled_date.date }}</strong>.
+
+<br /><br />
+If you wish to keep your account, please contact us at {{ support_email}} as
+soon as possible.
+
+<br /><br />
+Sincerely,<br />
+The {% site_name %} Team
+{% endblock %}

templates/emails/deletion-scheduled-body-text.html

@@ -0,0 +1,11 @@
+{% load hc_extras %}
+Hello,
+
+Your {% site_name %} account is scheduled for deletion on {{ deletion_scheduled_date.date }}.
+
+If you wish to keep your account, please contact us at {{ support_email}} as
+soon as possible.
+
+--
+Sincerely,
+The {% site_name %} Team

templates/emails/deletion-scheduled-subject.html

@@ -0,0 +1 @@
+Account Deletion Warning