Option to remove reminders issue #67

api/tests.py

@@ -3,8 +3,9 @@
 
 from django.test import RequestFactory, TestCase
 
-from .views import reminders, eligible_jurisdiction
+from .views import reminders, eligible_jurisdiction, unsubscribe
 from alerts.models import Alert
+from decouple import config
 
 
 class testReminders(TestCase):
@@ -17,6 +18,9 @@ def _post(self, url, params):
     def _get(self, url, params):
         return self.factory.get(url, params)
 
+    # def _delete(self, url):
+    #     return self.factory.delete(url)    
+
     def testReminderWithArraignmentIn8Days(self):
         arraignment_datetime = (datetime.today() + timedelta(days=8)).strftime('%Y-%m-%dT%H:%M:%S')
         request = self._post('/api/reminders', {
@@ -94,3 +98,31 @@ def testEligibleJurisdictions(self):
                 'seminole', 'sequoyah', 'stephens', 'texas', 'tillman',
                 'tulsa', 'wagoner', 'washington', 'washita', 'woods',
                 'woodward']})
+
+    def testUnsubscribe(self):
+        alert = Alert(
+                    when='2020-07-27',
+                    to="+1-000-001-0002",
+                    what="test reminder"
+                )
+        alert.save()
+        self.assertEqual(Alert.objects.filter(to='+1-000-001-0002').count(), 1)
+
+        request = self._post('api/unsubscribe/000-001-0002', {
+            'key': config('SECRET_KEY')
+        })
+        response = unsubscribe(request, '000-001-0002')
+        resp_json = json.loads(response.content)
+        message = resp_json.get('message', None)
+        self.assertEqual(message, 'Reminders for 000-001-0002 deleted.')
+        self.assertEqual(Alert.objects.filter(to='+1-000-001-0002').count(), 0)
+
+    def testUnsubsribeNotExists(self):
+        request = self._post('api/unsubscribe/000-001-0003', {
+            'key': config('SECRET_KEY')
+        })
+        response = unsubscribe(request, '000-001-0003')
+        resp_json = json.loads(response.content)
+        message = resp_json.get('message', None)
+        self.assertEqual(message, 'There are no reminders set for 000-001-0003.')
+        self.assertEqual(Alert.objects.filter(to='+1-000-001-0003').count(), 0)

api/urls.py

@@ -8,4 +8,5 @@
     path('case', views.case, name='case'),
     path('reminders', views.reminders, name='reminders'),
     path('eligible-jurisdiction', views.eligible_jurisdiction, name='eligible_jurisdiction'),
+    path('unsubscribe/<phone>', views.unsubscribe, name='unsubscribe'),
 ]

api/views.py

@@ -4,6 +4,7 @@
 from django.http import JsonResponse, HttpResponse
 from django.shortcuts import render
 from django.views.decorators.csrf import csrf_exempt
+from decouple import config
 
 import oscn
 
@@ -104,6 +105,21 @@ def eligible_jurisdiction(request):
 
     return HttpResponse(status=405)
 
+@csrf_exempt
+def unsubscribe(request, phone):
+    key = request.POST.get('key', None)
+    message =''
+    if key == config('SECRET_KEY'):
+        formatted_phone = "+1-" + phone
+        alerts = Alert.objects.filter(to=formatted_phone)
+        if not alerts:
+            message = f"There are no reminders set for {phone}."
+        else:    
+            alerts.delete()  
+            message = f"Reminders for {phone} deleted."
+    else:
+        message = "Unauthorized."        
+    return JsonResponse({'message': message})     
 
 def find_arraignment_or_return_False(events):
     for event in events:

website/templates/base_generic.html

@@ -14,6 +14,7 @@
 		{% load static %}
 		<link rel="stylesheet" href="{% static "css/styles.css" %}">
 		<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
+		<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
 		<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>
 
 		<!-- Global site tag (gtag.js) - Google Analytics -->

website/templates/index.html

@@ -66,8 +66,10 @@ <h4>FEWER FINES</h4>
 <section id="form">
 	<div class="container text-center">
 		{% if messages %}
-        	{% for message in messages %}
-    		<p{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</p>
+			{% for message in messages %}
+			  {% if not message.extra_tags %}
+				<p{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</p>
+			  {% endif %}	
     		{% endfor %}
 		{% endif %}
 		<h2>Fill Out Reminder Form:</h2>
@@ -130,13 +132,54 @@ <h4>5. When will I be reminded of my court case?</h4>
 				<h4>6. How often will I be reminded?</h4>
 				<p>Currently, you will only be reminded once.</p>
 			</div>
-			<div class="col-sm-6">
-				<h4>7. How do I unsubscribe?</h4>
-				<p></p>
+			<div class="col-sm-6" id='contact'>
+				<h4>7. How do I contact the people behind CourtBot?</h4>
+				<p>You can contact us at <a href="mailto:courtbotmuskogee@gmail.com">courtbotmuskogee@gmail.com.</a></p>
 			</div>
 			<div class="col-sm-6">
-				<h4>8. How do I contact the people behind CourtBot?</h4>
-				<p>You can contact us at <a href="mailto:courtbotmuskogee@gmail.com">courtbotmuskogee@gmail.com.</a></p>
+				<h4>8. How do I unsubscribe?</h4>
+				<p class='mb-0'>Click unsubscribe to remove reminders.</p>
+				<!-- Dropdown form for unsubscribing -->
+				<div class="col-sm-6 dropdown mt-0"></div>
+					<button class="btn btn-sm btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+						Unsubscribe
+					</button>
+					<form class="dropdown-menu p-4" action="/send_verification_code" method="POST">
+						<div class="form-group">
+							<small>(ex: 918-123-4567)</small>
+							<input type="tel" class="form-control" id="remove_phone_num" name="remove_phone_num" placeholder="Enter Phone Number"
+								pattern="[0-9]{3}-[0-9]{3}-[0-9]{4}" required>
+						</div>
+						<div class="form-group">
+						<button type="submit" class="btn btn-sm btn-primary">Remove</button>
+					</form>
+				</div>
+				<!-- Message for unsubscribing response -->
+				{% if messages %}
+					{% for message in messages %}
+			  			{% if message.extra_tags and message.extra_tags == 'unsubscribe' %}
+							<p>{{ message }}</p>
+	          			{% endif %}	
+    				{% endfor %}
+				{% endif %}
+
+				<!-- Displays verification code form if verify message tag exists -->
+				{% if messages %}
+					{% for message in messages %}
+						{% if message.extra_tags and message.extra_tags == 'verify' %}
+							<p>{{ message }}</p>
+							<form action="/unsubscribe_reminders" method="POST" id="verify">
+							<div class="form-group">
+								<input type="number" class="form-control" id="verification_code" name="verification_code" placeholder="Enter 4 digit code"
+									pattern="[0-9]{4}" required>
+							</div>
+							<div class="form-group">
+							<button type="submit" class="btn btn-sm btn-primary">Submit</button>
+							</form>
+						{% endif %}
+					{% endfor %}
+				{% endif %}
+
 			</div>
 		</div>
 	</div>

website/urls.py

@@ -3,5 +3,7 @@
 
 urlpatterns = [
     path('', views.index, name='index'),
-    path('schedule_reminders', views.schedule_reminders, name='schedule_reminders')
+    path('schedule_reminders', views.schedule_reminders, name='schedule_reminders'),
+    path('unsubscribe_reminders', views.unsubscribe_reminders, name='unsubscribe_reminders'),
+    path('send_verification_code', views.send_verification_code, name='send_verification_code')
 ]

website/views.py

@@ -1,6 +1,7 @@
 from django.shortcuts import render, redirect
 from datetime import datetime, timedelta
 import re
+from random import randint
 
 from django.http import JsonResponse, HttpResponse
 from django.shortcuts import render
@@ -9,15 +10,21 @@
 
 import oscn, requests, json
 
-
 from alerts.models import Alert
 
+from twilio.rest import Client
+from decouple import config
+
+TWILIO_ACCOUNT_SID = config('TWILIO_ACCOUNT_SID')
+TWILIO_AUTH_TOKEN = config('TWILIO_AUTH_TOKEN')
+TWILIO_FROM_NUMBER = config('TWILIO_FROM_NUMBER')
 
 def index(request):
     # """View function for home page of site."""
 
     # Render the HTML template index.html with the data in the context variable
     return render(request, 'index.html')
+
 
 def check_valid_case(request):
     # Process form data and requests arraignment data form api/case
@@ -42,6 +49,7 @@ def set_case_reminder(arraignment_datetime, case_num, phone_num):
         "phone_num": f"+1-{phone_num}"
     })
     resp = json.loads(reminder_request.content)
+
     if resp.get('error', None):
         return False, resp['error']
     message = f'Text reminder for case {case_num} occuring on {arraignment_datetime} was scheduled under {phone_num}.'
@@ -72,5 +80,41 @@ def schedule_reminders(request):
         if add_num:
           _, another_reminder_message = set_case_reminder(arraignment_datetime, case_num, add_num)
           messages.info(request, another_reminder_message)
+
     return redirect('/#form')
 
+@csrf_exempt
+def unsubscribe_reminders(request):
+    code = request.POST['verification_code']
+    if int(code) == request.session.get('verification_code', None):
+        phone = request.session.get('phone_number', None)
+        # request to api for reminder deletion, includes secret key to prevent unauthorized request
+        remove_request = requests.post(f"http://courtbot-python.herokuapp.com/api/unsubscribe/{phone}", {
+            "key": config('SECRET_KEY')
+        })
+        resp = json.loads(remove_request.content)
+        messages.info(request, resp.get('message', None), extra_tags='unsubscribe')
+        del request.session['verification_code']
+        del request.session['phone_number']
+        return redirect('/#contact')
+    else:
+        messages.error(request, 'Invalid code', extra_tags='verify')
+        return redirect('/#contact')  
+
+@csrf_exempt
+def send_verification_code(request):
+    # Sends random 4 digit code to verify owner of phone number requesting cancellation
+    phone = request.POST['remove_phone_num']
+    formatted_phone = '+1-' + phone
+    code = randint(1000,9999)
+    # save code and phone number in session for other view function
+    request.session['verification_code'] = code
+    request.session['phone_number'] = phone
+    client = Client(TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN)
+    message = client.messages.create(
+            to=formatted_phone,
+            from_=TWILIO_FROM_NUMBER,
+            body=f"Courtbot unsubscribe verification code: {code}"
+    )
+    messages.info(request, 'Enter verification code', extra_tags='verify')
+    return redirect("/#contact")