Update feature to send emails to evalai users using amazon ses

apps/web/templates/notification_email_data.html

@@ -37,6 +37,9 @@
                 <h5><strong><a ui-sref="home" class="dark-link"><img class="auth-logo" src="{% static 'accounts/images/evalai-logo.png' %}"></a></strong></h5>
                 <br>
                 <p class="text-med-gray auth-home"> Notify all users about new challenge </p>
+                {% if error %}
+                    <p class="text-highlight auth-home"> Some error occured. Please try again later! </p>
+                {% endif %}
             </div>
         </div>
         <div class="row">

apps/web/views.py

@@ -1,11 +1,13 @@
+import logging
+import traceback
+
 from django.contrib.auth.models import User
 from django.conf import settings
-from django.core.mail import EmailMultiAlternatives
+from django.core.mail import EmailMessage
 from django.shortcuts import render
-from django.template.loader import get_template
-from django.template import Context
 
 from email.MIMEImage import MIMEImage
+from smtplib import SMTPException
 
 from .models import Team
 from .serializers import ContactSerializer, TeamSerializer
@@ -17,6 +19,8 @@
 from rest_framework.response import Response
 from rest_framework.throttling import AnonRateThrottle
 
+logger = logging.getLogger(__name__)
+
 
 def home(request, template_name="index.html"):
     """
@@ -49,12 +53,10 @@ def notify_users_about_challenge(request):
             return render(request, template_name)
 
         elif request.method == 'POST':
-            template_name = 'notification_email.html'
-            emails = User.objects.all().exclude(email__isnull=True, email__exact='').values_list('email', flat=True)
-            htmly = get_template('notification_email.html')
+            users = User.objects.exclude(email__exact='').values_list('email', flat=True)
 
             subject = request.POST.get('subject')
-            body = request.POST.get('body')
+            body_html = request.POST.get('body')
 
             try:
                 challenge_image = request.FILES['challenge_image']
@@ -63,27 +65,28 @@ def notify_users_about_challenge(request):
 
             if challenge_image:
                 image = MIMEImage(challenge_image.read())
-                image.add_header('Content-ID', '<{}>'.format(challenge_image))
-
-            context = Context({'body': body,
-                               'image': challenge_image})
+                image.add_header('Content-Disposition', 'inline', filename=challenge_image._name)
+                image.add_header('Content-ID', '{}'.format(challenge_image))
 
-            for email in emails:
-                from_email = settings.EMAIL_HOST_USER
-                to = [email]
-                html_content = htmly.render(context)
+            sender = settings.EMAIL_HOST_USER
 
-                msg = EmailMultiAlternatives(subject, html_content, from_email, to)
-                msg.attach_alternative(html_content, "text/html")
-                msg.mixed_subtype = 'related'
+            email = EmailMessage(subject, body_html, sender, users)
+            email.content_subtype = 'html'
 
-                if challenge_image:
-                    msg.attach(image)
+            if challenge_image:
+                email.mixed_subtype = 'related'
+                email.attach(image)
 
-                msg.send()
-            return render(request,
-                          'notification_email_conformation.html',
-                          {'message': 'All the emails are sent successfully!'})
+            try:
+                email.send()
+                return render(request,
+                              'notification_email_conformation.html',
+                              {'message': 'All the emails are sent successfully!'})
+            except SMTPException:
+                logger.exception(traceback.format_exc())
+                return render(request,
+                              'notification_email_data.html',
+                              {'errors': 1})
         else:
             return render(request, 'error404.html')
     else:

evalai/urls.py

@@ -71,6 +71,7 @@
                url(r'^api/web/',
                    include('web.urls',
                            namespace='web')),
+               url(r'^email_reporting/', include('django_ses.urls')),
                ]
 
 # DJANGO-SPAGHETTI-AND-MEATBALLS URLs available during development only.

requirements/common.txt

@@ -6,6 +6,7 @@ djangorestframework==3.5.2
 djangorestframework-expiring-authtoken==0.1.4
 django-cors-headers==1.3.1
 django-rest-auth[with_social]==0.9.2
+django-ses==0.8.5
 drfdocs==0.0.11
 pika==0.10.0
 pickleshare==0.7.4

settings/common.py

@@ -59,6 +59,7 @@
     'allauth',
     'allauth.account',
     'corsheaders',
+    'django_ses',
     'import_export',
     'rest_auth',
     'rest_auth.registration',

settings/prod.py

@@ -41,6 +41,8 @@
 AWS_STORAGE_BUCKET_NAME = "evalai"
 AWS_ACCESS_KEY_ID = os.environ.get('AWS_ACCESS_KEY_ID', '')
 AWS_SECRET_ACCESS_KEY = os.environ.get('AWS_SECRET_ACCESS_KEY', '')
+AWS_SES_REGION_NAME = os.environ.get('AWS_SES_REGION_NAME', '')
+AWS_SES_REGION_ENDPOINT = os.environ.get('AWS_SES_REGION_ENDPOINT', '')
 
 # Amazon S3 Configurations
 AWS_S3_CUSTOM_DOMAIN = '%s.s3.amazonaws.com' % AWS_STORAGE_BUCKET_NAME
@@ -57,7 +59,7 @@
 
 # Setup Email Backend related settings
 DEFAULT_FROM_EMAIL = "noreply@cloudcv.org"
-EMAIL_BACKEND = "django.core.mail.backends.smtp.EmailBackend"
+EMAIL_BACKEND = "django_ses.SESBackend"
 EMAIL_HOST = os.environ.get("EMAIL_HOST", "")
 EMAIL_HOST_PASSWORD = os.environ.get("EMAIL_HOST_PASSWORD", "")
 EMAIL_HOST_USER = os.environ.get("EMAIL_HOST_USER", "")