1)pip install Django
 
django-admin --version
 
django-admin startproject myproject
 
cd myproject
 
-- Create a Django app.
python manage.py startapp hello
 
---Open settings.py inside the project folder.
Find INSTALLED_APPS and add the app name.
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'hello',
]
 
---Open hello/views.py
open hello folder create views.py file
 
from django.http import HttpResponse
 
def home(request):
    return HttpResponse("Hello World")
 
 
-----Create a new file hello/urls.py
from django.urls import path
from . import views
 
urlpatterns = [
    path('', views.home),
]
 
 
 
----Open myproject/urls.py
 
Modify like this:
 
 
from django.contrib import admin
from django.urls import path, include
 
urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('hello.urls')),
]
 
 
 
--Run the Django development server.
python manage.py runserver
 
--Go to:
http://127.0.0.1:8000/
 
 
 
2)
django-admin startproject xss_project
cd xss_project
python manage.py startapp xssapp
 
---Add in settings.py
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'xssapp',
]
 
 
---under xssapp/views.py
 
from django.shortcuts import render
import html
 
# vulnerable
def home(request):
    name = request.POST.get('name','')
    return render(request,'home.html',{'name':name})
 
# secure
def secure(request):
    name = request.POST.get('name','')
    name = html.escape(name)   # prevent XSS
    return render(request,'secure.html',{'name':name})
 
---xssapp/urls.py
 
from django.urls import path
from . import views
 
urlpatterns = [
    path('', views.home),
    path('secure/', views.secure),
]
 
 
-----xss_project /urls.py
 
from django.urls import path, include
 
urlpatterns = [
    path('', include('xssapp.urls')),
]
 
 
 
---- xssapp/templates/home.html
 
<h2>Vulnerable Page</h2>
 
<form method="post">
{% csrf_token %}
<input type="text" name="name">
<button>Submit</button>
</form>
 
Output: {{ name|safe }}
 
 
 
-----xssapp/templates/secure.html 
 
<h2>Secure Page</h2>
 
<form method="post">
{% csrf_token %}
<input type="text" name="name">
<button>Submit</button>
</form>
 
Output: {{ name }}
 
 
-----Run the Django development server.
python manage.py runserver
 
 
 
---You will see something like:
Starting development server at http://127.0.0.1:8000/
 
 
---For XSS program:
 
Open → http://127.0.0.1:8000/ (vulnerable page)
 
Open → http://127.0.0.1:8000/secure/ (safe page)
 
 
----- write this
<script>alert("Hacked")</script>
  
and submit
 
 
3)
django-admin startproject weather_project
cd weather_project
python manage.py startapp weather
 
 
-----Open settings.py
 
INSTALLED_APPS = [
    ...
    'weather',
]
 
 
 
----Open weather/views.py
 
import requests
from django.shortcuts import render
 
def home(request):
    data = {}
    error = ""
 
    if request.method == "POST":
        city = request.POST.get("city")
        api_key = "YOUR_API_KEY"
 
        url = f"https://api.openweathermap.org/data/2.5/weather?q={city}&appid={api_key}&units=metric"
        response = requests.get(url)
        result = response.json()
 
        if result.get("cod") == 200:
            data = {
                "city": result["name"],
                "temperature": result["main"]["temp"],
                "description": result["weather"][0]["description"]
            }
        else:
            error = "Invalid city name"
 
    return render(request, "home.html", {"data": data, "error": error})
 
 
-----weather/urls.py
 
from django.urls import path
from . import views
 
urlpatterns = [
    path('', views.home),
]
 
 
----Open weather_project/urls.py
 
from django.contrib import admin
from django.urls import path, include
 
urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('weather.urls')),
]
 
 
 
-----Create folder: weather/templates/
Create file: home.html
 
<!DOCTYPE html>
<html>
<head>
    <title>Weather App</title>
</head>
<body>
 
<h2>Weather App</h2>
 
<form method="POST">
    {% csrf_token %}
    <input type="text" name="city" placeholder="Enter city">
    <button type="submit">Get Weather</button>
</form>
 
{% if data.city %}
    <h3>City: {{ data.city }}</h3>
    <h3>Temperature: {{ data.temperature }} °C</h3>
    <h3>Description: {{ data.description }}</h3>
{% endif %}
 
{% if error %}
    <h3 style="color:red">{{ error }}</h3>
{% endif %}
 
</body>
</html>
 
 
 
 
python manage.py runserver
 
4)
django-admin startproject feedback_project
cd feedback_project
python manage.py startapp feedback
 
 
----Add in settings.py
 
INSTALLED_APPS = ['feedback']
 
 
-----feedback/models.py
 
from django.db import models
 
class Feedback(models.Model):
    name = models.CharField(max_length=100)
    message = models.TextField()
 
 
-----after above
python manage.py makemigrations
python manage.py migrate
 
 
-----feedback/views.py
 
from django.shortcuts import render
from django.http import JsonResponse
from .models import Feedback
 
def home(request):
    data = Feedback.objects.all()
    return render(request, "feedback.html", {"data": data})
 
def add_feedback(request):
    if request.method == "POST":
        name = request.POST['name']
        msg = request.POST['message']
        Feedback.objects.create(name=name, message=msg)
        return JsonResponse({'name': name, 'message': msg})
 
 
-----feedback/urls.py
 
from django.urls import path
from . import views
 
urlpatterns = [
    path('', views.home),
    path('add/', views.add_feedback),
]
 
 
------project urls.py
 
from django.urls import path, include
 
urlpatterns = [
    path('', include('feedback.urls')),
]
 
 
----Create folder → feedback/templates/feedback.html
 
<!DOCTYPE html>
<html>
<head>
 
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
 
<style>
.feedback:nth-child(odd){background:#d9edf7;}
.feedback:nth-child(even){background:#f2f2f2;}
</style>
 
</head>
 
<body>
 
<h2>Student Feedback</h2>
 
<form id="form">
{% csrf_token %}
<input type="text" name="name" placeholder="Name"><br>
<textarea name="message" placeholder="Feedback"></textarea><br>
<button type="submit">Submit</button>
</form>
 
<div id="list">
{% for f in data %}
<div class="feedback"><b>{{f.name}}</b>: {{f.message}}</div>
{% endfor %}
</div>
 
<script>
 
// focus effect
$("input,textarea").focus(function(){
$(this).css("background","#ffffcc");
});
 
// ajax submit
$("#form").submit(function(e){
e.preventDefault();
 
$.ajax({
url:"/add/",
type:"POST",
data:$(this).serialize(),
headers:{'X-CSRFToken':'{{csrf_token}}'},
 
success:function(res){
 
// traversing + add new feedback
$("#list").prepend(
"<div class='feedback'><b>"+res.name+"</b>: "+res.message+"</div>"
).children().first().hide().fadeIn();
 
$("#form")[0].reset();
 
}
 
});
 
});
 
</script>
 
</body>
</html>
 
 
 
python manage.py runserver
 
 
5)
django-admin startproject feedback_project
cd feedback_project
python manage.py startapp feedback
 
 
----Add in settings.py
 
INSTALLED_APPS = ['feedback']
 
 
-----feedback/models.py
 
from django.db import models
 
class Feedback(models.Model):
    name = models.CharField(max_length=100)
    message = models.TextField()
 
 
-----after above
python manage.py makemigrations
python manage.py migrate
 
 
-----feedback/views.py
 
from django.shortcuts import render
from django.http import JsonResponse
from .models import Feedback
 
def home(request):
    data = Feedback.objects.all()
    return render(request, "feedback.html", {"data": data})
 
def add_feedback(request):
    if request.method == "POST":
        name = request.POST['name']
        msg = request.POST['message']
        Feedback.objects.create(name=name, message=msg)
        return JsonResponse({'name': name, 'message': msg})
 
 
-----feedback/urls.py
 
from django.urls import path
from . import views
 
urlpatterns = [
    path('', views.home),
    path('add/', views.add_feedback),
]
 
 
------project urls.py
 
from django.urls import path, include
 
urlpatterns = [
    path('', include('feedback.urls')),
]
 
 
----Create folder → feedback/templates/feedback.html
 
<!DOCTYPE html>
<html>
<head>
 
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
 
<style>
.feedback:nth-child(odd){background:#d9edf7;}
.feedback:nth-child(even){background:#f2f2f2;}
</style>
 
</head>
 
<body>
 
<h2>Student Feedback</h2>
 
<form id="form">
{% csrf_token %}
<input type="text" name="name" placeholder="Name"><br>
<textarea name="message" placeholder="Feedback"></textarea><br>
<button type="submit">Submit</button>
</form>
 
<div id="list">
{% for f in data %}
<div class="feedback"><b>{{f.name}}</b>: {{f.message}}</div>
{% endfor %}
</div>
 
<script>
 
// focus effect
$("input,textarea").focus(function(){
$(this).css("background","#ffffcc");
});
 
// ajax submit
$("#form").submit(function(e){
e.preventDefault();
 
$.ajax({
url:"/add/",
type:"POST",
data:$(this).serialize(),
headers:{'X-CSRFToken':'{{csrf_token}}'},
 
success:function(res){
 
// traversing + add new feedback
$("#list").prepend(
"<div class='feedback'><b>"+res.name+"</b>: "+res.message+"</div>"
).children().first().hide().fadeIn();
 
$("#form")[0].reset();
 
}
 
});
 
});
 
</script>
 
</body>
</html>
 
 
 
python manage.py runserver
 
 
 
 
6)
django-admin startproject student_project
cd student_project
python manage.py startapp student
 
------Add in settings.py
 
INSTALLED_APPS = ['student']
 
 
-----student/models.py
from django.db import models
 
class Student(models.Model):
    usn = models.CharField(max_length=20)
    name = models.CharField(max_length=100)
    subject_code = models.CharField(max_length=10)
    cie_marks = models.IntegerField()
 
 
-----
python manage.py makemigrations
python manage.py migrate
 
 
----student/views.py
from django.shortcuts import render
from .models import Student
 
def home(request):
    if request.method == "POST":
        usn = request.POST['usn']
        name = request.POST['name']
        sub = request.POST['subject']
        marks = request.POST['marks']
 
        Student.objects.create(
            usn=usn, name=name,
            subject_code=sub, cie_marks=marks
        )
 
    return render(request, "form.html")
 
def low(request):
    data = Student.objects.filter(cie_marks__lt=20)
    return render(request, "result.html", {"data": data})
 
 
------student/urls.py
 
from django.urls import path
from . import views
 
urlpatterns = [
    path('', views.home),
    path('low/', views.low),
]
 
 
------project urls.py
from django.urls import path, include
 
urlpatterns = [
    path('', include('student.urls')),
]
 
 
 
------Create folder → student/templates/form.html
 
 
<h2>Student Form</h2>
 
<form method="post">
{% csrf_token %}
USN: <input type="text" name="usn"><br>
Name: <input type="text" name="name"><br>
Subject: <input type="text" name="subject"><br>
Marks: <input type="number" name="marks"><br>
 
<button type="submit">Submit</button>
</form>
 
<a href=''>View CIE < 20</a>
 
 
------Create folder → student/templates/result.html
<h2>Students with CIE < 20</h2>
 
{% for s in data %}
<p>{{s.usn}} - {{s.name}} - {{s.subject_code}} - {{s.cie_marks}}</p>
{% endfor %}
 
 
python manage.py runserver

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