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from django.shortcuts import render, redirect
from sbhs_server.tables.models import Account, Board
from django.core.exceptions import ValidationError, ObjectDoesNotExist
from django.core.validators import validate_email
from django.contrib import messages
from sbhs_server.helpers import simple_encrypt
from django.contrib.auth import authenticate
from django.contrib.auth import login as LOGIN
from django.contrib.auth import logout as LOGOUT
from django.contrib.auth.decorators import login_required
from datetime import datetime
# Create your views here.
def index(req):
""" Renders the user web interface.
Input: s:request object.
Output: HttpResponse object returned by render() function for the given interface.
"""
if req.user.is_authenticated():
return redirect(home)
return render(req, "account/index.html")
def new():
pass
def create(req):
""" Creates a new user account.
Generate user alerts if:
Any of the fields is not entered.
Entered email-id is invalid.
Entered username or email-id is existing.
Alloted board id is -1, because of no boards being available online.
If the user credentials cross all checks and hence a successful account is created.
Input: s:request object.
Output: HttpResponseRedirect object returned by redirect() function.
"""
error = []
name = req.POST.get("name").strip()
email = req.POST.get("email").strip()
username = req.POST.get("username").strip()
roll_number = req.POST.get("roll_number").strip()
password = req.POST.get("password")
confirm = req.POST.get("confirm")
institute = req.POST.get("institute").strip()
department = req.POST.get("department").strip()
position = req.POST.get("position").strip()
error = error + (["Please enter a name."] if name == "" else [])
error = error + (["Please enter an email."] if email == "" else [])
error = error + (["Please enter an username."] if username == "" else [])
error = error + (["Please enter a roll_number."] if roll_number == "" else [])
error = error + (["Please enter a password."] if password == "" else [])
error = error + (["Password confirmation does not match."] if password != confirm else [])
error = error + (["Please enter an institute."] if institute == "" else [])
error = error + (["Please enter a department."] if department == "" else [])
error = error + (["Please enter a position."] if position == "" else [])
try:
validate_email(email)
except ValidationError:
error = error + ["Please enter a valid email."]
email_exists = Account.objects.filter(email=email).count()
error = error + (["Account with given email already exists."] if email_exists > 0 else [])
username_exists = Account.objects.filter(username=username).count()
error = error + (["Account with given username already exists."] if username_exists > 0 else [])
if error != []:
messages.add_message(req, messages.ERROR, "<br>".join(error))
return redirect(index)
# try:
# check if a board could be allocated
allocated_board_id = Board.allot_board()
if allocated_board_id == -1:
messages.add_message(req, messages.ERROR, "Sorry!! No boards online at this moment. Try again in some time.")
return redirect(index)
account = Account(
name=name,
username=username,
email=email,
board_id=allocated_board_id,
last_login=datetime.now().strftime("%Y-%m-%d %H:%M")
)
account.set_password(password)
account.save()
account.send_confirmation()
print "Done"
messages.add_message(req, messages.SUCCESS, "You have been registered successfully. Please check your email for confirmation.")
return redirect(index)
# except:
# messages.add_message(req, messages.ERROR, "Invalid information. Please try again.")
# return redirect(index)
def confirm(req, token):
""" Confirms a user's email-id.
Generate user alerts if:
User enters invalid confirmation token.
User's email-id gets confirmed.
Input: s:request object.
Output: HttpResponseRedirect object returned by redirect() function.
"""
try:
email = simple_encrypt.decrypt(token)
account = Account.objects.get(email=email)
account.is_active = True
account.save()
messages.add_message(req, messages.SUCCESS, "Your email has been confirmed. You can login now.")
except:
messages.add_message(req, messages.ERROR, "Invalid confirmation token.")
return redirect(index)
def login(req):
""" Logs in an existing user.
Generate user alerts if:
Either of username or password do not match.
Account email-id is not activated yet.
Input: s:request object.
Output: HttpResponseRedirect object returned by redirect() function.
"""
username = req.POST.get('username')
password = req.POST.get('password')
#user = authenticate(username=username, password=password)
try:
user = Account.objects.get(username=username)
except ObjectDoesNotExist:
messages.add_message(req, messages.ERROR, "Invalid username or password.")
return redirect(index)
is_authenticated = user.check_password(password)+
if is_authenticated:
if user.is_active:
LOGIN(req, user)
return redirect(index)
else:
messages.add_message(req, messages.ERROR, "Your account is not activated yet. Please check your email for activation link.")
return redirect(index)
else:
messages.add_message(req, messages.ERROR, "Invalid username or password.")
return redirect(index)
def logout(req):
""" Logs out a logged-in user.
Input: s:request object.
Output: HttpResponseRedirect object returned by redirect() function.
"""
LOGOUT(req)
return redirect(index)
@login_required(redirect_field_name=None)
def home(req):
""" Redirects to the home page.
Input: s:request object.
Output: HttpResponse object returned by render() function for the given interface.
"""
return render(req, "account/home.html")
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