Use Base email template for emails sent from the Messaging Center (mo…

…zilla#3491)

Also: Factor out `send_manual_emails()` and move it to `pontoon.messaging.emails`.

pontoon/messaging/emails.py

@@ -572,3 +572,33 @@ def send_verification_email(user, link):
     msg.send()
 
     log.info(f"Verification email sent to { user.contact_email }.")
+
+
+def send_manual_emails(users, subject, body, is_transactional):
+    """
+    Sends manual emails composed in the Messaging Center.
+    """
+    template = get_template("messaging/emails/manual.html")
+
+    for user in users:
+        body_html = template.render(
+            {
+                "subject": subject,
+                "content": body,
+                "is_transactional": is_transactional,
+                "settings": settings,
+                "user": user,
+            }
+        )
+        body_text = html_to_plain_text_with_links(body_html)
+
+        msg = EmailMultiAlternatives(
+            subject=subject,
+            body=body_text,
+            from_email=settings.DEFAULT_FROM_EMAIL,
+            to=[user.contact_email],
+        )
+        msg.attach_alternative(body_html, "text/html")
+        msg.send()
+
+    log.info(f"Emails sent to {len(users)} users.")

pontoon/messaging/templates/messaging/emails/manual.html

@@ -0,0 +1,22 @@
+{% extends 'messaging/emails/base.html' %}
+
+{% block title %}{{ subject }}{% endblock %}
+
+{% block extend_css %}{% endblock %}
+
+{% block header %}Hello.{% endblock %}
+
+{% block subheader %}{% endblock %}
+
+{% block content_class %}{% endblock %}
+
+{% block content %}
+{{ content|safe }}
+{% endblock %}
+
+{% block footer %}
+{% if not is_transactional %}
+{{ settings.EMAIL_COMMUNICATIONS_FOOTER_PRE_TEXT }}<br>
+To no longer receive emails like these, unsubscribe here: <a href="{{ full_url('pontoon.messaging.unsubscribe', user.profile.unique_id) }}">Unsubscribe</a>.
+{% endif %}
+{% endblock %}

pontoon/messaging/views.py

@@ -2,16 +2,12 @@
 import logging
 import uuid
 
-from urllib.parse import urljoin
-
 from guardian.decorators import permission_required_or_403
 from notifications.signals import notify
 
-from django.conf import settings
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth.models import User
 from django.core.exceptions import PermissionDenied
-from django.core.mail import EmailMultiAlternatives
 from django.db import transaction
 from django.db.models import Count, F
 from django.http import JsonResponse
@@ -21,7 +17,8 @@
 
 from pontoon.base.models import Locale, Project, Translation, UserProfile
 from pontoon.base.utils import require_AJAX, split_ints
-from pontoon.messaging import forms, utils
+from pontoon.messaging import forms
+from pontoon.messaging.emails import send_manual_emails
 from pontoon.messaging.models import Message
 
 
@@ -309,35 +306,13 @@ def send_message(request):
         log.info(f"Notifications sent to {len(recipients)} users.")
 
     if is_email:
-        unsubscribe_url = urljoin(settings.SITE_URL, f"unsubscribe/{uuid}")
-        footer = (
-            f"""<br><br>
-{ settings.EMAIL_COMMUNICATIONS_FOOTER_PRE_TEXT }<br>To no longer receive emails like these, unsubscribe here: <a href="{ unsubscribe_url }">Unsubscribe</a>.
-        """
-            if not is_transactional
-            else ""
-        )
-        html_template = body + footer
-        text_template = utils.html_to_plain_text_with_links(html_template)
-
-        for recipient in recipients:
-            if not recipient.profile.email_communications_enabled:
-                continue
-
-            unique_id = str(recipient.profile.unique_id)
-            text = text_template.replace("{ uuid }", unique_id)
-            html = html_template.replace("{ uuid }", unique_id)
-
-            msg = EmailMultiAlternatives(
-                subject=subject,
-                body=text,
-                from_email=settings.DEFAULT_FROM_EMAIL,
-                to=[recipient.contact_email],
-            )
-            msg.attach_alternative(html, "text/html")
-            msg.send()
+        email_recipients = [
+            recipient
+            for recipient in recipients
+            if recipient.profile.email_communications_enabled
+        ]
 
-        log.info(f"Emails sent to {len(recipients)} users.")
+        send_manual_emails(email_recipients, subject, body, is_transactional)
 
     if not send_to_myself:
         message = form.save(commit=False)