[WIP] add user notifications and text templates

core/authentication/api_v2.py

@@ -12,25 +12,7 @@ from knox.models import AuthToken
 from knox.views import LoginView as KnoxLoginView
 
 from authentication.models import ExtendedUser
-
-
-class UserSerializer(serializers.ModelSerializer):
-    permissions = serializers.SerializerMethodField()
-    groups = serializers.SlugRelatedField(many=True, read_only=True, slug_field='name')
-
-    class Meta:
-        model = ExtendedUser
-        fields = ('id', 'username', 'email', 'first_name', 'last_name', 'permissions', 'groups')
-        read_only_fields = ('id', 'username', 'email', 'first_name', 'last_name', 'permissions', 'groups')
-
-    def get_permissions(self, obj):
-        return list(set(obj.get_permissions()))
-
-
-@receiver(post_save, sender=ExtendedUser)
-def create_auth_token(sender, instance=None, created=False, **kwargs):
-    if created:
-        AuthToken.objects.create(user=instance)
+from authentication.serializers import UserSerializer, GroupSerializer
 
 
 class UserViewSet(viewsets.ModelViewSet):
@@ -38,26 +20,17 @@ class UserViewSet(viewsets.ModelViewSet):
     serializer_class = UserSerializer
 
 
-class GroupSerializer(serializers.ModelSerializer):
-    permissions = serializers.SerializerMethodField()
-    members = serializers.SerializerMethodField()
-
-    class Meta:
-        model = Group
-        fields = ('id', 'name', 'permissions', 'members')
-
-    def get_permissions(self, obj):
-        return ["*:" + p.codename for p in obj.permissions.all()]
-
-    def get_members(self, obj):
-        return [u.username for u in obj.user_set.all()]
-
-
 class GroupViewSet(viewsets.ModelViewSet):
     queryset = Group.objects.all()
     serializer_class = GroupSerializer
 
 
+@receiver(post_save, sender=ExtendedUser)
+def create_auth_token(sender, instance=None, created=False, **kwargs):
+    if created:
+        AuthToken.objects.create(user=instance)
+
+
 @api_view(['GET'])
 @permission_classes([IsAuthenticated])
 def selfUser(request):

core/authentication/serializers.py

@@ -0,0 +1,32 @@
+from rest_framework import serializers
+from django.contrib.auth.models import Group
+
+from authentication.models import ExtendedUser
+
+
+class UserSerializer(serializers.ModelSerializer):
+    permissions = serializers.SerializerMethodField()
+    groups = serializers.SlugRelatedField(many=True, read_only=True, slug_field='name')
+
+    class Meta:
+        model = ExtendedUser
+        fields = ('id', 'username', 'email', 'first_name', 'last_name', 'permissions', 'groups')
+        read_only_fields = ('id', 'username', 'email', 'first_name', 'last_name', 'permissions', 'groups')
+
+    def get_permissions(self, obj):
+        return list(set(obj.get_permissions()))
+
+
+class GroupSerializer(serializers.ModelSerializer):
+    permissions = serializers.SerializerMethodField()
+    members = serializers.SerializerMethodField()
+
+    class Meta:
+        model = Group
+        fields = ('id', 'name', 'permissions', 'members')
+
+    def get_permissions(self, obj):
+        return ["*:" + p.codename for p in obj.permissions.all()]
+
+    def get_members(self, obj):
+        return [u.username for u in obj.user_set.all()]

core/core/settings.py

@@ -32,7 +32,9 @@ SECRET_KEY = os.getenv('DJANGO_SECRET_KEY', 'django-insecure-tm*$w_14iqbiy-!7(8#
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = truthy_str(os.getenv('DEBUG_MODE_ACTIVE', 'False'))
 
-ALLOWED_HOSTS = [os.getenv('HTTP_HOST', 'localhost')]
+PRIMARY_HOST = os.getenv('HTTP_HOST', 'localhost')
+
+ALLOWED_HOSTS = [PRIMARY_HOST]
 
 MAIL_DOMAIN = os.getenv('MAIL_DOMAIN', 'localhost')
 
@@ -45,6 +47,10 @@ SYSTEM3_VERSION = "0.0.0-dev.0"
 
 ACTIVE_SPAM_TRAINING = truthy_str(os.getenv('ACTIVE_SPAM_TRAINING', 'False'))
 
+TELEGRAM_BOT_TOKEN = os.getenv('TELEGRAM_BOT_TOKEN', '1234567890:ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi')
+
+TELEGRAM_GROUP_CHAT_ID = os.getenv('TELEGRAM_GROUP_CHAT_ID', '-1234567890')
+
 # Application definition
 
 INSTALLED_APPS = [
@@ -61,6 +67,7 @@ INSTALLED_APPS = [
     'drf_yasg',
     'channels',
     'authentication',
+    'notifications',
     'files',
     'tickets',
     'inventory',

core/core/urls.py

@@ -31,6 +31,7 @@ urlpatterns = [
     path('api/2/', include('mail.api_v2')),
     path('api/2/', include('notify_sessions.api_v2')),
     path('api/2/', include('authentication.api_v2')),
+    path('api/2/', include('notifications.api_v2')),
     path('api/', get_info),
     path('', include('django_prometheus.urls')),
 ]

core/core/wsgi.py

@@ -0,0 +1,16 @@
+"""
+WSGI config for core project.
+
+It exposes the WSGI callable as a module-level variable named ``application``.
+
+For more information on this file, see
+https://docs.djangoproject.com/en/4.2/howto/deployment/wsgi/
+"""
+
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'core.settings')
+
+application = get_wsgi_application()

core/mail/models.py

@@ -29,13 +29,13 @@ class Email(SoftDeleteModel):
             self.save()
 
     def train_spam(self):
-        if ACTIVE_SPAM_TRAINING and self.raw_file.path:
+        if ACTIVE_SPAM_TRAINING:
             import subprocess
             path = self.raw_file.path
             subprocess.run(["rspamc", "learn_spam", path])
 
     def train_ham(self):
-        if ACTIVE_SPAM_TRAINING and self.raw_file.path:
+        if ACTIVE_SPAM_TRAINING:
             import subprocess
             path = self.raw_file.path
             subprocess.run(["rspamc", "learn_ham", path])

core/mail/protocol.py

@@ -7,6 +7,7 @@ from channels.db import database_sync_to_async
 from django.core.files.base import ContentFile
 
 from mail.models import Email, EventAddress, EmailAttachment
+from notifications.templates import render_auto_reply
 from notify_sessions.models import SystemEvent
 from tickets.models import IssueThread
 
@@ -87,11 +88,27 @@ def make_reply(reply_email, references=None, event=None):
     return reply
 
 
+def make_notification(message, to, title):  # TODO where should replies to this go
+    from email.message import EmailMessage
+    from core.settings import MAIL_DOMAIN
+    notification = EmailMessage()
+    notification["From"] = "notifications@%s" % MAIL_DOMAIN
+    notification["To"] = to
+    notification["Subject"] = f"[C3LF Notification]%s" % title
+    # notification["Reply-To"] = f"{event}@{MAIL_DOMAIN}"
+    # notification["In-Reply-To"] = email.reference
+    # notification["Message-ID"] = email.id + "@" + MAIL_DOMAIN
+
+    notification.set_content(message)
+
+    return notification
+
+
 async def send_smtp(message):
     await aiosmtplib.send(message, hostname="127.0.0.1", port=25, use_tls=False, start_tls=False)
 
 
-def find_active_issue_thread(in_reply_to, address, subject, event):
+def find_active_issue_thread(in_reply_to, address, subject):
     from re import match
     uuid_match = match(r'^ticket\+([a-f0-9-]{36})@', address)
     if uuid_match:
@@ -102,7 +119,7 @@ def find_active_issue_thread(in_reply_to, address, subject, event):
     if reply_to.exists():
         return reply_to.first().issue_thread, False
     else:
-        issue = IssueThread.objects.create(name=subject, event=event)
+        issue = IssueThread.objects.create(name=subject)
         return issue, True
 
 
@@ -202,14 +219,11 @@ def receive_email(envelope, log=None):
     subject = unescape_and_decode_base64(subject)
     target_event = find_target_event(recipient)
 
-    active_issue_thread, new = find_active_issue_thread(header_in_reply_to, recipient, subject, target_event)
-
-    from hashlib import sha256
-    random_filename = 'mail-' + sha256(envelope.content).hexdigest()
+    active_issue_thread, new = find_active_issue_thread(header_in_reply_to, recipient, subject)
 
     email = Email.objects.create(
         sender=sender, recipient=recipient, body=body, subject=subject, reference=header_message_id,
-        in_reply_to=header_in_reply_to, raw_file=ContentFile(envelope.content, name=random_filename), event=target_event,
+        in_reply_to=header_in_reply_to, raw_file=ContentFile(envelope.content), event=target_event,
         issue_thread=active_issue_thread)
     for attachment in attachments:
         email.attachments.add(attachment)
@@ -221,16 +235,7 @@ def receive_email(envelope, log=None):
         references = collect_references(active_issue_thread)
         if not sender.startswith('noreply'):
             subject = f"Re: {subject} [#{active_issue_thread.short_uuid()}]"
-            body = '''Your request (#{}) has been received and will be reviewed by our lost&found angels.
-
-We are reviewing incoming requests during the event and teardown. Immediately after the event, expect a delay as the \
-workload is high. We will not forget about your request and get back in touch once we have updated information on your \
-request. Requests for devices, wallets, credit cards or similar items will be handled with priority.
-
-If you happen to find your lost item or just want to add additional information, please reply to this email. Please \
-do not create a new request.
-
-Your c3lf (Cloakroom + Lost&Found) Team'''.format(active_issue_thread.short_uuid())
+            body = render_auto_reply(active_issue_thread)
             reply_email = Email.objects.create(
                 sender=recipient, recipient=sender, body=body, subject=subject,
                 in_reply_to=header_message_id, event=target_event, issue_thread=active_issue_thread)
@@ -273,11 +278,19 @@ class LMTPHandler:
                 'general', {"type": "generic.event", "name": "send_message_to_frontend", "event_id": systemevent.id,
                             "message": "email received"})
             log.info(f"Sent message to frontend")
+
             if new and reply:
                 log.info('Sending message to %s' % reply['To'])
                 await send_smtp(reply)
                 log.info("Sent auto reply")
 
+            if thread:
+                await channel_layer.group_send(
+                    'general', {"type": "generic.event", "name": "user_notification", "event_id": systemevent.id,
+                                "ticket_id": thread.id, "new": new})
+            else:
+                print("No thread found")
+
             return '250 Message accepted for delivery'
         except SpecialMailException as e:
             import uuid

core/mail/tests/v2/test_mails.py

@@ -142,7 +142,6 @@ class LMTPHandlerTestCase(TestCase):  # TODO replace with less hacky test
         aiosmtplib.send.assert_called_once()
         self.assertEqual('test ä', Email.objects.all()[0].subject)
         self.assertEqual('Text mit Quoted-Printable-Kodierung: äöüß', Email.objects.all()[0].body)
-        self.assertTrue( Email.objects.all()[0].raw_file.path)
 
     def test_handle_quoted_printable_2(self):
         from aiosmtpd.smtp import Envelope
@@ -163,7 +162,6 @@ class LMTPHandlerTestCase(TestCase):  # TODO replace with less hacky test
         aiosmtplib.send.assert_called_once()
         self.assertEqual('suche_Mütze', Email.objects.all()[0].subject)
         self.assertEqual('Text mit Quoted-Printable-Kodierung: äöüß', Email.objects.all()[0].body)
-        self.assertTrue( Email.objects.all()[0].raw_file.path)
 
     def test_handle_base64(self):
         from aiosmtpd.smtp import Envelope
@@ -184,7 +182,6 @@ class LMTPHandlerTestCase(TestCase):  # TODO replace with less hacky test
         aiosmtplib.send.assert_called_once()
         self.assertEqual('test', Email.objects.all()[0].subject)
         self.assertEqual('Text mit Base64-Kodierung: äöüß', Email.objects.all()[0].body)
-        self.assertTrue( Email.objects.all()[0].raw_file.path)
 
     def test_handle_client_reply(self):
         issue_thread = IssueThread.objects.create(
@@ -232,7 +229,6 @@ class LMTPHandlerTestCase(TestCase):  # TODO replace with less hacky test
         self.assertEqual(IssueThread.objects.all()[0].name, 'test')
         self.assertEqual(IssueThread.objects.all()[0].state, 'pending_new')
         self.assertEqual(IssueThread.objects.all()[0].assigned_to, None)
-        self.assertTrue( Email.objects.all()[2].raw_file.path)
 
     def test_handle_client_reply_2(self):
         issue_thread = IssueThread.objects.create(
@@ -285,7 +281,6 @@ class LMTPHandlerTestCase(TestCase):  # TODO replace with less hacky test
         self.assertEqual(IssueThread.objects.all()[0].name, 'test')
         self.assertEqual(IssueThread.objects.all()[0].state, 'pending_open')
         self.assertEqual(IssueThread.objects.all()[0].assigned_to, None)
-        self.assertTrue( Email.objects.all()[2].raw_file.path)
 
     def test_mail_reply(self):
         issue_thread = IssueThread.objects.create(
@@ -389,7 +384,6 @@ class LMTPHandlerTestCase(TestCase):  # TODO replace with less hacky test
         states = StateChange.objects.filter(issue_thread=IssueThread.objects.all()[0])
         self.assertEqual(1, len(states))
         self.assertEqual('pending_new', states[0].state)
-        self.assertEqual(event, IssueThread.objects.all()[0].event)
 
     def test_mail_html_body(self):
         from aiosmtpd.smtp import Envelope

core/mail/tests/v2/test_user_notifications.py

@@ -0,0 +1,20 @@
+from django.contrib.auth.models import Permission
+from django.test import TestCase
+
+from authentication.models import ExtendedUser
+from notifications.models import UserNotificationChannel
+
+
+class UserNotificationTestCase(TestCase):
+
+    def setUp(self):
+        super().setUp()
+        self.user = ExtendedUser.objects.create_user('testuser', 'test', 'test')
+        self.user.user_permissions.add(*Permission.objects.all())
+        self.user.save()
+        self.channel = UserNotificationChannel.objects.create(user=self.user, channel_type='telegram',
+                                                              channel_target='123456789',
+                                                              event_filter='*', active=True)
+
+    async def test_telegram_notify(self):
+        pass

core/notifications/admin.py

@@ -0,0 +1,15 @@
+from django.contrib import admin
+
+from notifications.models import MessageTemplate, UserNotificationChannel
+
+
+class MessageTemplateAdmin(admin.ModelAdmin):
+    pass
+
+
+class UserNotificationChannelAdmin(admin.ModelAdmin):
+    pass
+
+
+admin.site.register(MessageTemplate, MessageTemplateAdmin)
+admin.site.register(UserNotificationChannel, UserNotificationChannelAdmin)

core/notifications/api_v2.py

@@ -0,0 +1,51 @@
+from django.contrib.auth.decorators import permission_required
+from rest_framework import routers, viewsets
+from django.urls import re_path
+from rest_framework.decorators import api_view, permission_classes
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+
+from notifications.models import MessageTemplate, UserNotificationChannel
+from rest_framework import serializers
+
+from notifications.templates import TEMPLATE_VARS
+from authentication.serializers import UserSerializer
+
+
+class MessageTemplateSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = MessageTemplate
+        fields = '__all__'
+
+
+class UserNotificationChannelSerializer(serializers.ModelSerializer):
+    user = UserSerializer()
+
+    class Meta:
+        model = UserNotificationChannel
+        fields = '__all__'
+
+
+class MessageTemplateViewSet(viewsets.ModelViewSet):
+    serializer_class = MessageTemplateSerializer
+    queryset = MessageTemplate.objects.all()
+
+
+class UserNotificationChannelViewSet(viewsets.ModelViewSet):
+    serializer_class = UserNotificationChannelSerializer
+    queryset = UserNotificationChannel.objects.all()
+
+
+@api_view(['GET'])
+@permission_classes([IsAuthenticated])
+@permission_required('tickets.add_issuethread_manual', raise_exception=True)  # TDOO: change this permission
+def get_template_vars(self):
+    return Response(TEMPLATE_VARS, status=200)
+
+
+router = routers.SimpleRouter()
+router.register(r'message_templates', MessageTemplateViewSet)
+router.register(r'user_notification_channels', UserNotificationChannelViewSet)
+urlpatterns = ([
+                   re_path('message_template_variables', get_template_vars),
+               ] + router.urls)

core/notifications/defaults.py

@@ -0,0 +1,16 @@
+auto_reply_body = '''Your request (#{{ ticket_uuid }}) has been received and will be reviewed by our lost&found angels.
+
+We are reviewing incoming requests during the event and teardown. Immediately after the event, expect a delay as the \
+workload is high. We will not forget about your request and get back in touch once we have updated information on your \
+request. Requests for devices, wallets, credit cards or similar items will be handled with priority.
+
+If you happen to find your lost item or just want to add additional information, please reply to this email. Please \
+do not create a new request.
+
+Your c3lf (Cloakroom + Lost&Found) Team'''
+
+new_issue_notification = '''New issue "{{ ticket_name | limit_length }}" [{{ ticket_uuid }}] created
+{{ ticket_url }}'''
+
+reply_issue_notification = '''Reply to issue "{{ ticket_name }}" [{{ ticket_uuid }}] (was {{ previous_state_pretty }})
+{{ ticket_url }}'''

core/notifications/dispatch.py

@@ -0,0 +1,85 @@
+import asyncio
+
+from aiohttp.client import ClientSession
+from channels.layers import get_channel_layer
+from channels.db import database_sync_to_async
+from urllib.parse import quote as urlencode
+
+from core.settings import TELEGRAM_BOT_TOKEN, TELEGRAM_GROUP_CHAT_ID
+from mail.protocol import send_smtp, make_notification
+from notifications.models import UserNotificationChannel
+from notifications.templates import render_notification_new_ticket_async, render_notification_reply_ticket_async
+from tickets.models import IssueThread
+
+
+async def http_get(url):
+    async with ClientSession() as session:
+        async with session.get(url) as response:
+            return await response.text()
+
+
+async def telegram_notify(message, chat_id):
+    encoded_message = urlencode(message)
+    url = f"https://api.telegram.org/bot{TELEGRAM_BOT_TOKEN}/sendMessage?chat_id={chat_id}&text={encoded_message}"
+    return await http_get(url)
+
+
+async def email_notify(message, title, email):
+    mail = make_notification(message, email, title)
+    await send_smtp(mail)
+
+
+class NotificationDispatcher:
+    channel_layer = None
+    room_group_name = "general"
+
+    def __init__(self):
+        self.channel_layer = get_channel_layer('default')
+        if not self.channel_layer:
+            raise Exception("Could not get channel layer")
+
+    @database_sync_to_async
+    def get_notification_targets(self):
+        channels = UserNotificationChannel.objects.filter(active=True)
+        return list(channels)
+
+    @database_sync_to_async
+    def get_ticket(self, ticket_id):
+        return IssueThread.objects.filter(id=ticket_id).select_related('event').first()
+
+    async def run_forever(self):
+        # Infinite loop to continuously listen for messages
+        print("Listening for messages...")
+        channel_name = await self.channel_layer.new_channel()
+        await self.channel_layer.group_add(self.room_group_name, channel_name)
+        print("Channel name:", channel_name)
+        while True:
+            # Blocking receive to get the message from the channel layer
+            message = await self.channel_layer.receive(channel_name)
+
+            if (message and 'type' in message and message['type'] == 'generic.event' and 'name' in message and
+                    message['name'] == 'user_notification'):
+                if 'ticket_id' in message and 'event_id' in message and 'new' in message:
+                    ticket = await self.get_ticket(message['ticket_id'])
+                    await self.dispatch(ticket, message['event_id'], message['new'])
+                else:
+                    print("Error: Invalid message format")
+
+    async def dispatch(self, ticket, event_id, new):
+        message = await render_notification_new_ticket_async(
+            ticket) if new else await render_notification_reply_ticket_async(ticket)
+        title = f"[#{ticket.short_uuid()}] {ticket.name}"
+        print("Dispatching message:", message, "with event_id:", event_id)
+        targets = await self.get_notification_targets()
+        jobs = []
+        jobs.append(telegram_notify(message, TELEGRAM_GROUP_CHAT_ID))
+        for target in targets:
+            if target.channel_type == 'telegram':
+                print("Sending telegram notification to:", target.channel_target)
+                jobs.append(telegram_notify(message, target.channel_target))
+            elif target.channel_type == 'email':
+                print("Sending email notification to:", target.channel_target)
+                jobs.append(email_notify(message, title, target.channel_target))
+            else:
+                print("Unknown channel type:", target.channel_type)
+        await asyncio.gather(*jobs)

core/notifications/migrations/0001_initial.py

@@ -0,0 +1,51 @@
+# Generated by Django 4.2.7 on 2024-05-03 21:02
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+from notifications.defaults import auto_reply_body, new_issue_notification, reply_issue_notification
+from notifications.models import MessageTemplate
+
+
+class Migration(migrations.Migration):
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    def create_required_templates(apps, schema_editor):
+        MessageTemplate.objects.create(name='auto_reply', message=auto_reply_body, marked_required=True)
+        MessageTemplate.objects.create(name='new_issue_notification', message=new_issue_notification,
+                                       marked_required=True)
+        MessageTemplate.objects.create(name='reply_issue_notification', message=reply_issue_notification,
+                                       marked_required=True)
+
+    operations = [
+        migrations.CreateModel(
+            name='MessageTemplate',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=255)),
+                ('message', models.TextField()),
+                ('created', models.DateTimeField(auto_now_add=True)),
+                ('marked_confidential', models.BooleanField(default=False)),
+                ('marked_required', models.BooleanField(default=False)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='UserNotificationChannel',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('channel_type',
+                 models.CharField(choices=[('telegram', 'telegram'), ('email', 'email')], max_length=255)),
+                ('channel_target', models.CharField(max_length=255)),
+                ('event_filter', models.CharField(max_length=255)),
+                ('active', models.BooleanField(default=True)),
+                ('created', models.DateTimeField(auto_now_add=True)),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.RunPython(create_required_templates),
+    ]

core/notifications/models.py

@@ -0,0 +1,29 @@
+from django.db import models
+
+from authentication.models import ExtendedUser
+
+
+class MessageTemplate(models.Model):
+    name = models.CharField(max_length=255)
+    message = models.TextField()
+    created = models.DateTimeField(auto_now_add=True)
+    marked_confidential = models.BooleanField(default=False)
+    marked_required = models.BooleanField(default=False)  # may not be deleted
+
+    def __str__(self):
+        return self.name
+
+
+class UserNotificationChannel(models.Model):
+    user = models.ForeignKey(ExtendedUser, models.CASCADE)
+    channel_type = models.CharField(choices=[('telegram', 'telegram'), ('email', 'email')], max_length=255)
+    channel_target = models.CharField(max_length=255)
+    event_filter = models.CharField(max_length=255)
+    active = models.BooleanField(default=True)
+    created = models.DateTimeField(auto_now_add=True)
+
+    def validate_constraints(self, exclude=None):  # TODO: email -> emailaddress, telegram -> chatid
+        return True
+
+    def __str__(self):
+        return self.user.username + '(' + self.channel_type + ')'

core/notifications/templates.py

@@ -0,0 +1,69 @@
+import jinja2
+from channels.db import database_sync_to_async
+from core.settings import PRIMARY_HOST
+
+from notifications.models import MessageTemplate
+
+TEMPLATE_VARS = ['ticket_name', 'ticket_uuid', 'ticket_id', 'ticket_url',
+                'current_state', 'previous_state', 'current_state_pretty', 'previous_state_pretty',
+                'event_slug', 'event_name',
+                'username', 'user_nick',
+                'web_host']  # TODO customer_name, tracking_code
+
+
+def limit_length(s, length=50):
+    if len(s) > length:
+        return s[:(length - 3)] + "..."
+    return s
+
+
+def ticket_url(ticket):
+    eventslug = ticket.event.slug if ticket.event else "37C3"  # TODO 37C3 should not be hardcoded
+    return f"https://{PRIMARY_HOST}/{eventslug}/ticket/{ticket.id}/"
+
+
+def render_template(template, **kwargs):
+    try:
+        environment = jinja2.Environment()
+        environment.filters['limit_length'] = limit_length
+        tmpl = MessageTemplate.objects.get(name=template)
+        template = environment.from_string(tmpl.message)
+        return template.render(**kwargs, web_host=PRIMARY_HOST)
+    except MessageTemplate.DoesNotExist:
+        return None
+
+
+def get_ticket_vars(ticket):
+    states = list(ticket.state_changes.order_by('-timestamp'))
+    return {
+        'ticket_name': ticket.name,
+        'ticket_uuid': ticket.short_uuid(),
+        'ticket_id': ticket.id,
+        'ticket_url': ticket_url(ticket),
+        'current_state': states[0].state if states else 'none',
+        'previous_state': states[1].state if len(states) > 1 else 'none',
+        'current_state_pretty': states[0].get_state_display() if states else 'none',
+        'previous_state_pretty': states[1].get_state_display() if len(states) > 1 else 'none',
+        'event_slug': ticket.event.slug if ticket.event else "37C3",  # TODO 37C3 should not be hardcoded
+        'event_name': ticket.event.name if ticket.event else "37C3",
+    }
+
+
+def render_auto_reply(ticket):
+    return render_template('auto_reply', **get_ticket_vars(ticket))
+
+
+def render_notification_new_ticket(ticket):
+    return render_template('new_issue_notification', **get_ticket_vars(ticket))
+
+
+def render_notification_reply_ticket(ticket):
+    return render_template('reply_issue_notification', **get_ticket_vars(ticket))
+
+
+async def render_notification_new_ticket_async(ticket):
+    return await database_sync_to_async(render_notification_new_ticket)(ticket)
+
+
+async def render_notification_reply_ticket_async(ticket):
+    return await database_sync_to_async(render_notification_reply_ticket)(ticket)

core/server.py

@@ -12,6 +12,7 @@ django.setup()
 from helper import init_loop
 from mail.protocol import LMTPHandler
 from mail.socket import UnixSocketLMTPController
+from notifications.dispatch import NotificationDispatcher
 
 
 class UvicornServer(uvicorn.Server):
@@ -54,6 +55,11 @@ async def lmtp(loop):
     log.info("LMTP done")
 
 
+async def notifications(loop):
+    dispatcher = NotificationDispatcher()
+    await dispatcher.run_forever()
+
+
 def main():
     import sdnotify
     import setproctitle
@@ -67,6 +73,7 @@ def main():
     loop.create_task(web(loop))
     #    loop.create_task(tcp(loop))
     loop.create_task(lmtp(loop))
+    loop.create_task(notifications(loop))
     n = sdnotify.SystemdNotifier()
     n.notify("READY=1")
     log.info("Server ready")

deploy/ansible/playbooks/templates/django.env.j2

@@ -13,3 +13,5 @@ STATIC_ROOT=/var/www/c3lf-sys3/staticfiles
 ACTIVE_SPAM_TRAINING=True
 DEBUG_MODE_ACTIVE={{ debug_mode_active }}
 DJANGO_SECRET_KEY={{ django_secret_key }}
+TELEGRAM_GROUP_CHAT_ID={{ telegram_group_chat_id }}
+TELEGRAM_BOT_TOKEN={{ telegram_bot_token }}

web/src/components/inputs/FormatedText.vue

@@ -0,0 +1,112 @@
+<template>
+    <div contenteditable @input="onchange" ref="text">
+    </div>
+</template>
+
+<script>
+export default {
+    name: 'FormatedText',
+    props: {
+        value: {
+            type: String,
+            required: true
+        },
+        format: {
+            type: Function,
+            default: null
+        }
+    },
+    data() {
+        return {
+            selection: {start: 0, end: 0, direction: 'forward', type: 'Caret'}
+        };
+    },
+    emits: ['input'],
+    methods: {
+        rawhtml(value) {
+            if (typeof this.format === 'function') {
+                return this.format(value.replace(/ /g, '&nbsp;'));
+            } else {
+                return value;
+            }
+        },
+        onchange(event) {
+            const div = this.$refs.text;
+            const sel = window.getSelection();
+            if (sel.rangeCount > 0) {
+                this.selection.start = this.calculateOffset(div, sel.anchorNode, sel.anchorOffset);
+                this.selection.end = this.calculateOffset(div, sel.focusNode, sel.focusOffset);
+                this.selection.direction = sel.direction;
+                this.selection.type = sel.type;
+            }
+            this.$emit('input', event.target.innerText.replace(/&nbsp;/g, ' ').replace(/\xA0/g, ' '));
+        },
+        calculateOffset(container, node, offset) {
+            let position = 0;
+            let found = false;
+            const walk = (elem) => {
+                if (elem === node) {
+                    found = true;
+                    return;
+                }
+                if (elem.nodeType === 3) {
+                    position += elem.length;
+                } else {
+                    for (let i = 0; i < elem.childNodes.length; i++) {
+                        walk(elem.childNodes[i]);
+                        if (found) {
+                            return;
+                        }
+                    }
+                }
+            };
+            walk(container);
+            return position + offset;
+        },
+        findNode(container, offset) {
+            let position = 0;
+            let found = false;
+            let node = null;
+            const walk = (elem) => {
+                if (position + elem.length >= offset) {
+                    found = true;
+                    node = elem;
+                    return;
+                }
+                if (elem.nodeType === 3) {
+                    position += elem.length;
+                } else {
+                    for (let i = 0; i < elem.childNodes.length; i++) {
+                        walk(elem.childNodes[i]);
+                        if (found) {
+                            return;
+                        }
+                    }
+                }
+            };
+            walk(container);
+            return [node, offset - position]
+        },
+    },
+    watch: {
+        value() {
+            if (this.selection) {
+                const div = this.$refs.text;
+                div.innerHTML = this.rawhtml(this.value);
+
+                const range = document.createRange();
+                const sel = window.getSelection();
+                range.setStart(...this.findNode(div, this.selection.start));
+                range.setEnd(...this.findNode(div, this.selection.end));
+
+                sel.removeAllRanges();
+                sel.addRange(range);
+            }
+        }
+    },
+    mounted() {
+        const div = this.$refs.text;
+        div.innerHTML = this.rawhtml(this.value);
+    }
+};
+</script>

web/src/router.js

@@ -13,9 +13,11 @@ import Ticket from "@/views/Ticket.vue";
 import Admin from "@/views/admin/Admin.vue";
 import Empty from "@/views/Empty.vue";
 import Events from "@/views/admin/Events.vue";
+import Settings from "@/views/admin/Settings.vue";
 import AccessControl from "@/views/admin/AccessControl.vue";
 import {default as BoxesAdmin} from "@/views/admin/Boxes.vue"
 import Shipping from "@/views/admin/Shipping.vue";
+import Notifications from "@/views/admin/Notifications.vue";
 
 const routes = [
     {path: '/', redirect: '/37C3/items', meta: {requiresAuth: false}},
@@ -58,6 +60,10 @@ const routes = [
                 path: 'events/', name: 'events', component: Events, meta:
                     {requiresAuth: true, requiresPermission: 'delete_event'}
             },
+            {
+                path: 'settings/', name: 'settings', component: Settings, meta:
+                    {requiresAuth: true, requiresPermission: 'delete_event'}
+            },
             {
                 path: '', name: 'admin', component: Dashboard, meta:
                     {requiresAuth: true, requiresPermission: 'delete_event'}
@@ -74,6 +80,10 @@ const routes = [
                 path: 'shipping/', name: 'shipping', component: Shipping, meta:
                     {requiresAuth: true, requiresPermission: 'delete_event'}
             },
+            {
+                path: 'notifications/', name: 'notifications', component: Notifications, meta:
+                    {requiresAuth: true, requiresPermission: 'delete_event'}
+            }
         ]
     },
     {path: '/user', name: 'user', component: Empty, meta: {requiresAuth: true}},

web/src/store.js

@@ -19,7 +19,10 @@ const store = createStore({
         users: [],
         groups: [],
         state_options: [],
+        messageTemplates: [],
+        messageTemplateVariables: [],
         shippingVouchers: [],
+        userNotificationChannels: [],
 
         lastEvent: '37C3',
         lastUsed: {},
@@ -42,7 +45,9 @@ const store = createStore({
             users: 0,
             groups: 0,
             states: 0,
+            messageTemplates: 0,
             shippingVouchers: 0,
+            userNotificationChannels: 0,
         },
         persistent_loaded: false,
         shared_loaded: false,
@@ -222,10 +227,21 @@ const store = createStore({
         setThumbnail(state, {url, data}) {
             state.thumbnailCache[url] = data;
         },
+        setMessageTemplates(state, templates) {
+            state.messageTemplates = templates;
+            state.fetchedData = {...state.fetchedData, messageTemplates: Date.now()};
+        },
+        setMessageTemplateVariables(state, variables) {
+            state.messageTemplateVariables = variables;
+        },
         setShippingVouchers(state, codes) {
             state.shippingVouchers = codes;
             state.fetchedData = {...state.fetchedData, shippingVouchers: Date.now()};
         },
+        setUserNotificationChannels(state, channels) {
+            state.userNotificationChannels = channels;
+            state.fetchedData = {...state.fetchedData, userNotificationChannels: Date.now()};
+        },
     },
     actions: {
         async login({commit}, {username, password, remember}) {
@@ -459,6 +475,39 @@ const store = createStore({
             const {data, success} = await http.patch(`/2/tickets/${id}/`, ticket, state.user.token);
             commit('updateTicket', data);
         },
+        async fetchMessageTemplates({commit, state}) {
+            if (!state.user.token) return;
+            if (state.messageTemplates.length > 0) return;
+            const {data, success} = await http.get('/2/message_templates/', state.user.token);
+            if (data && success) {
+                commit('setMessageTemplates', data);
+            }
+        },
+        async updateMessageTemplate({dispatch, state}, template) {
+            const {data, success} = await http.patch(`/2/message_templates/${template.id}/`,
+                {'message': template.message}, state.user.token);
+            if (data && success) {
+                state.fetchedData.messageTemplates = 0;
+                dispatch('fetchMessageTemplates');
+            }
+        },
+        async fetchMessageTemplateVariables({commit, state}) {
+            if (!state.user.token) return;
+            if (state.messageTemplateVariables.length > 0) return;
+            const {data, success} = await http.get('/2/message_template_variables/', state.user.token);
+            if (data && success) {
+                commit('setMessageTemplateVariables', data);
+            }
+        },
+        async createMessageTemplate({dispatch, state}, template_name) {
+            const {data, success} = await http.post('/2/message_templates/', {
+                name: template_name,
+                message: '-'
+            }, state.user.token);
+            if (data && success) {
+                dispatch('fetchMessageTemplates');
+            }
+        },
         async fetchShippingVouchers({commit, state}) {
             if (!state.user.token) return;
             if (state.fetchedData.shippingVouchers > Date.now() - 1000 * 60 * 60 * 24) return;
@@ -485,8 +534,16 @@ const store = createStore({
                 state.fetchedData.tickets = 0;
                 await Promise.all([dispatch('loadTickets'), dispatch('fetchShippingVouchers')]);
             }
+        },
+        async fetchUserNotificationChannels({commit, state}) {
+            if (!state.user.token) return;
+            if (state.fetchedData.userNotificationChannels > Date.now() - 1000 * 60 * 60 * 24) return;
+            const {data, success} = await http.get('/2/user_notification_channels/', state.user.token);
+            if (data && success) {
+                commit('setUserNotificationChannels', data);
             }
         },
+    },
     plugins: [
         persistentStatePlugin({ // TODO change remember to some kind of enable field
             prefix: "lf_",
@@ -513,6 +570,8 @@ const store = createStore({
                 "groups",
                 "loadedBoxes",
                 "loadedItems",
+                "messageTemplates",
+                "messageTemplatesVariables",
                 "shippingVouchers",
             ],
             watch: [
@@ -524,6 +583,8 @@ const store = createStore({
                 "groups",
                 "loadedBoxes",
                 "loadedItems",
+                "messageTemplates",
+                "messageTemplatesVariables",
                 "shippingVouchers",
             ],
             mutations: [

web/src/views/admin/Admin.vue

@@ -8,9 +8,15 @@
                             <li class="nav-item">
                                 <router-link class="nav-link" :to="{name: 'admin'}" active-class="dummy" exact-active-class="active">Dashboard</router-link>
                             </li>
+                            <li class="nav-item">
+                                <router-link class="nav-link" :to="{name: 'settings'}" active-class="active">Settings</router-link>
+                            </li>
                             <li class="nav-item">
                                 <router-link class="nav-link" :to="{name: 'events'}" active-class="active">Events</router-link>
                             </li>
+                            <li class="nav-item">
+                                <router-link class="nav-link" :to="{name: 'notifications'}" active-class="active">Notifications</router-link>
+                            </li>
                             <li class="nav-item">
                                 <router-link class="nav-link" :to="{name: 'shipping'}" active-class="active">Shipping</router-link>
                             </li>

web/src/views/admin/Notifications.vue

@@ -0,0 +1,53 @@
+<template>
+    <div>
+        <Table :items="userNotificationChannels.map(channel => ({...channel, username: channel.user.username || {}}))"
+               :columns="['id', 'username', 'channel_type', 'channel_target', 'event_filter', /*'active', 'created'*/]">
+            <template #actions="{ item }">
+                <div class="btn-group">
+                    <button class="btn btn-danger" @click.stop="">
+                        <font-awesome-icon icon="trash"/>
+                        delete
+                    </button>
+                </div>
+            </template>
+        </Table>
+        <div class="card bg-dark">
+            <div class="card-body">
+                <div class="input-group">
+                    <select class="form-control">
+                        <option value="1">user</option>
+                        <option value="2">admin</option>
+                    </select>
+                    <select class="form-control">
+                        <option value="email">Email</option>
+                        <option value="telegram">Telegram</option>
+                    </select>
+                    <input type="text" class="form-control" placeholder="channel_target">
+                    <input type="text" class="form-control" value="*">
+                    <div class="input-group-append">
+                        <button class="btn btn-primary">Add</button>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</template>
+
+<script>
+import {mapActions, mapState} from 'vuex';
+import Table from '@/components/Table';
+
+export default {
+    name: 'Notifications',
+    components: {Table},
+    computed: mapState(['userNotificationChannels']),
+    methods: mapActions(['fetchUserNotificationChannels']),
+    mounted() {
+        this.fetchUserNotificationChannels();
+    }
+};
+</script>
+
+<style scoped>
+
+</style>

web/src/views/admin/Settings.vue

@@ -0,0 +1,109 @@
+<template>
+    <h3 class="text-center">Available Message Template Variables</h3>
+    <p>
+        <span v-for="(variable, key) in messageTemplateVariables" :key="key" class="badge badge-primary"
+              style="margin: 5px;">
+            {{ variable }}
+        </span>
+    </p>
+    <h3 class="text-center">Message Templates</h3>
+    <div v-for="template in messageTemplatesIntermediate" :key="template.id" class="card bg-dark"
+         style="margin-bottom: 10px;">
+        <div class="card-header">{{ template.name }}</div>
+        <FormatedText :value="template.message" :format="formatText" class="card-body"
+                      @input="changeMessageTemplate(template.id, $event)"/>
+        <div class="card-body">
+            <button class="btn btn-primary" @click="resetMessageTemplate(template.id)"
+                    :disabled="messageTemplates.find(t => t.id === template.id).message === template.message">Reset
+            </button>
+            <button class="btn btn-success" @click="saveMessageTemplate(template.id)"
+                    :disabled="messageTemplates.find(t => t.id === template.id).message === template.message">Save
+            </button>
+        </div>
+    </div>
+    <div class="card bg-dark">
+        <div class="card-body">
+            <div class="input-group">
+                <input type="text" class="form-control" v-model="newTemplateName" placeholder="New Template Name">
+                <button class="btn btn-success input-group-btn" @click="createMessageTemplateAndReset()"
+                        ref="createButton">Create
+                </button>
+            </div>
+        </div>
+    </div>
+</template>
+
+<script>
+import {mapActions, mapState} from 'vuex';
+import Table from '@/components/Table';
+import FormatedText from "@/components/inputs/FormatedText.vue";
+
+export default {
+    name: 'Settings',
+    components: {FormatedText, Table},
+    data() {
+        return {
+            messageTemplatesIntermediate: [],
+            newTemplateName: '',
+        };
+    },
+    computed: mapState(['messageTemplates', 'messageTemplateVariables']),
+    methods: {
+        ...mapActions(['fetchMessageTemplates', 'fetchMessageTemplateVariables', 'updateMessageTemplate', 'createMessageTemplate']),
+        formatText(value) {
+            return value.replace(/{{(.+?)}}/g, (match, key) => {
+                return `<span class="text-primary">{{${key}}}</span>`;
+            }).replace(/\n/g, '<br>').replace(/\t/g, '&nbsp;&nbsp;&nbsp;&nbsp;');
+        },
+        changeMessageTemplate(id, message) {
+            console.log(id, message);
+            this.messageTemplatesIntermediate.forEach(template => {
+                if (template.id === id) {
+                    template.message = message;
+                }
+            });
+        },
+        saveMessageTemplate(id) {
+            this.updateMessageTemplate(this.messageTemplatesIntermediate.find(template => template.id === id));
+        },
+        resetMessageTemplate(id) {
+            this.messageTemplatesIntermediate.find(template => template.id === id).message =
+                this.messageTemplates.find(template => template.id === id).message;
+        },
+        async createMessageTemplateAndReset() {
+            this.$refs.createButton.disabled = true;
+            await this.createMessageTemplate(this.newTemplateName);
+            this.newTemplateName = '';
+            this.$refs.createButton.disabled = false;
+        },
+    },
+    mounted() {
+        this.fetchMessageTemplates().then(() => {
+            this.messageTemplatesIntermediate = JSON.parse(JSON.stringify(this.messageTemplates));
+        });
+        this.fetchMessageTemplateVariables();
+    },
+    watch: {
+        messageTemplates() {
+            for (const template of this.messageTemplates) {
+                if (!this.messageTemplatesIntermediate.find(t => t.id === template.id)) {
+                    this.messageTemplatesIntermediate.push(JSON.parse(JSON.stringify(template)));
+                }
+            }
+            for (const template of this.messageTemplatesIntermediate) {
+                if (!this.messageTemplates.find(t => t.id === template.id)) {
+                    this.messageTemplatesIntermediate = this.messageTemplatesIntermediate.filter(t => t.id !== template.id);
+                }
+            }
+        }
+    }
+};
+</script>
+
+<style scoped>
+pre {
+    white-space: pre-wrap;
+    word-wrap: break-word;
+    color: inherit;
+}
+</style>