Send jnf response as pdf attachment (#107)

* Attach jnf response pdf after verifying email.

* add pdfkit to requirments.txt

CDC_Backend/APIs/companyViews.py

@@ -260,36 +260,21 @@ def verifyEmail(request):
 
         if send_email_to_company:
             # Email sending part.
-            details = model_to_dict(opening, fields=[field.name for field in Placement._meta.fields],
-                                    exclude=['id', 'is_company_details_pdf', 'offer_accepted', 'is_description_pdf',
-                                             'is_compensation_details_pdf', 'is_selection_procedure_details_pdf',
-                                             'email_verified'])
-            keys = list(details.keys())
-            newdetails = {}
-            for key in keys:
-                if isinstance(details[key], list):
-                    details[key] = {"details": details[key], "type": ["list"]}
-                if key in ['website', 'company_details_pdf_names', 'description_pdf_names',
-                           'compensation_details_pdf_names', 'selection_procedure_pdf_names']:
-                    if key == 'website':
-                        details[key] = {"details": details[key], "type": ["link"]}
-                    else:
-                        details[key] = {"details": details[key]["details"], "type": ["list", "link"],
-                                        "link": LINK_TO_STORAGE_COMPANY_ATTACHMENT + opening.id + "/"}
-                new_key = key.replace('_', ' ')
-                if key == 'company_details_pdf_names':
-                    new_key = 'company details pdf'
-                newdetails[new_key] = details[key]
+            pdfhtml = opening_description_table_html(opening)
+            name = opening.company_name + '_jnf_response.pdf'
+            attachment_jnf_respone = {
+                "name": name,
+                "html": pdfhtml,
+            }
             data = {
                 "designation": opening.designation,
                 "opening_type": PLACEMENT,
                 "opening_link": PLACEMENT_OPENING_URL.format(id=opening.id),  # Some Changes here too
                 "company_name": opening.company_name,
-                "data": newdetails
             }
             json_data = json.dumps(data, default=str)
             sendEmail(opening.email, COMPANY_OPENING_SUBMITTED_TEMPLATE_SUBJECT.format(id=opening.id), json_data,
-                      COMPANY_OPENING_SUBMITTED_TEMPLATE)
+                      COMPANY_OPENING_SUBMITTED_TEMPLATE, attachment_jnf_respone)
 
         return Response({'action': "Verify Email", 'message': "Email Verified Successfully"},
                         status=status.HTTP_200_OK)

CDC_Backend/APIs/constants.py

@@ -134,6 +134,9 @@ COMPANY_OPENING_SUBMITTED_TEMPLATE = 'company_opening_submitted.html'
 STUDENT_APPLICATION_STATUS_SELECTED_TEMPLATE = 'student_application_status_selected.html'
 STUDENT_APPLICATION_STATUS_NOT_SELECTED_TEMPLATE = 'student_application_status_not_selected.html'
 COMPANY_EMAIL_VERIFICATION_TEMPLATE = 'company_email_verification.html'
+COMPANY_JNF_RESPONSE_TEMPLATE = 'company_jnf_response.html'
 
 APPLICATION_CSV_COL_NAMES = ['Applied At', 'Roll No.', 'Name', 'Email', 'Phone Number', 'Branch', 'Batch', 'CPI',
                              'Resume', 'Selected', ]
+
+PDF_FILES_SERVING_ENDPOINT = 'http://localhost:5500/CDC_Backend/Storage/Company_Attachments/' # TODO: Change this to actual URL

CDC_Backend/APIs/utils.py

@@ -12,6 +12,7 @@ import background_task
 import jwt
 from django.conf import settings
 from django.core.mail import EmailMultiAlternatives
+from django.forms.models import model_to_dict
 from django.http import Http404
 from django.shortcuts import get_object_or_404
 from django.template.loader import render_to_string
@@ -21,9 +22,10 @@ from google.oauth2 import id_token
 from rest_framework import status
 from rest_framework.response import Response
 import requests as rq
+import pdfkit
 
 from .constants import *
-from .models import User, PrePlacementOffer, PlacementApplication
+from .models import User, PrePlacementOffer, PlacementApplication, Placement
 
 logger = logging.getLogger('db')
 
@@ -134,7 +136,7 @@ def saveFile(file, location):
 
 
 @background_task.background(schedule=10)
-def sendEmail(email_to, subject, data, template):
+def sendEmail(email_to, subject, data, template, attachment_jnf_respone=None):
     try:
         if not isinstance(data, dict):
             data = json.loads(data)
@@ -146,6 +148,10 @@ def sendEmail(email_to, subject, data, template):
 
         msg = EmailMultiAlternatives(subject, text_content, email_from, recipient_list)
         msg.attach_alternative(html_content, "text/html")
+        if attachment_jnf_respone:
+            logger.info(attachment_jnf_respone)
+            pdf =  pdfkit.from_string(attachment_jnf_respone['html'], False,options={"--enable-local-file-access": "",'--dpi':'96'})
+            msg.attach(attachment_jnf_respone['name'], pdf, 'application/pdf')
         msg.send()
         return True
     except:
@@ -261,4 +267,29 @@ def verify_recaptcha(request):
         print(sys.exc_info())
         print(traceback.format_exc())
         logger.warning("Utils - verify_recaptcha: " + str(sys.exc_info()))
-        return False, "_"
+        return False, "_"
+
+def opening_description_table_html(opening):
+    details = model_to_dict(opening, fields = [field.name for field in Placement._meta.fields], exclude = ['id','is_company_details_pdf','offer_accepted','is_description_pdf','is_compensation_details_pdf','is_selection_procedure_details_pdf','email_verified'])
+    keys = list(details.keys())
+    newdetails = {}
+    for key in keys:
+        if isinstance(details[key], list):
+            details[key] = {"details": details[key], "type": ["list"]}
+        if key in ['website','company_details_pdf_names','description_pdf_names','compensation_details_pdf_names','selection_procedure_pdf_names']:
+            if key == 'website':
+                details[key] = {"details": details[key], "type": ["link"]}
+            else:
+                details[key] = {"details": details[key]["details"], "type": ["list","link"], "link": PDF_FILES_SERVING_ENDPOINT+opening.id+"/"}
+        new_key = key.replace('_',' ')
+        if key.endswith(' names'):
+            new_key = key[:-6]
+        new_key = new_key.capitalize()
+        newdetails[new_key] = details[key]
+    imagepath = os.path.abspath('./templates/image.png')
+    print(imagepath)
+    data = {
+    "data": newdetails,
+    "imgpath": imagepath
+    }
+    return render_to_string(COMPANY_JNF_RESPONSE_TEMPLATE, data)

CDC_Backend/templates/company_jnf_response.html

@@ -0,0 +1,61 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <style>
+        #details_table tr:nth-child(even) {background: #FFF}
+        #details_table tr:nth-child(odd) {background: #bfe3f3}
+        #details_table td {padding: 10px; width: 50%;}
+        #details_table{
+            border: #334878 1px solid;
+            border-collapse: collapse;
+            width: 80%;
+            margin:auto;
+        }
+    </style>
+    <title>Document</title>
+</head>
+<body style="margin: 0;">
+    
+        <header style="background-color: #334878;"><img style="height: 3cm; margin: auto; display: block; padding: 0.5cm;" src='{{imgpath}}' alt="cdc logo"></header>
+        <h1 style="text-align: center;"> Job Notification Form Response</h1>
+        <table id="details_table">
+            {% for key, value in data.items %}
+            <tr>
+                <td >
+                        {{ key }}
+                </td>
+                <td>
+                    {% if 'list' in  value.type %}
+                    
+                            {% for item in value.details %}
+                            <li>
+                                {% if 'link' in value.type and value.link %}
+                                    <a href="{{value.link|add:item}}">{{ item }}</a>
+                                {% elif 'link' in value.type %}
+                                    <a href="{{item}}">{{ item }}</a>
+                                {% else %}
+                                {{ item }}
+                                {% endif %}
+                            </li>
+                            {% endfor %}
+                    {% else %}
+                        {% if 'link' in value.type %}
+                        <a href="{{ value.details }}">{{ value.details }}</a>
+                        {% else %}
+                        {{ value }}
+                        {% endif %}
+                {% endif %}
+    
+                </td>
+            </tr>
+        {% endfor %}
+    </table>
+    <p style="margin-left: 10%;">In case of any descripency regarding above details, please contact <a href="mailto:cdc@iitdh.ac.in">cdc@iitdh.ac.in</a>
+
+    </p>
+
+</body>
+</html>

requirements.txt

@@ -21,6 +21,7 @@ jsonfield==3.1.0
 lazy-object-proxy==1.6.0
 Markdown==3.3.6
 mccabe==0.7.0
+pdfkit==1.0.0
 platformdirs==2.5.1
 psycopg2-binary==2.9.3
 pyasn1==0.4.8