Hack Django Admin , admin login after checking ip address

HI Friends ,
Today i will tell you how can we filter login of Admin user in respect of IP addresses stored in backend.
Work Motivation : Allow any admin user login only with any number of  ip address selected in backend .

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Coding

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we will create two models in models.py Profile , Failed

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Profile :

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class Profile(models.Model):
     user = models.ForeignKey(User)
     ip=models.IPAddressField(null=True)
     def __str__(self):
         return "%s's profile" % self.user

def create_user_profile(sender, instance, created, **kwargs):
     if created:
         profile, created = Profile.objects.get_or_create(user=instance)
post_save.connect(create_user_profile, sender=User)

---

class Failed(models.Model):
     user=models.ForeignKey(User)
     timestamp=models.DateTimeField(auto_now_add=True)
     ip=models.IPAddressField()

---

Now Create a decorator
from django.http import HttpResponse
from django.contrib.auth.views import logout
from django.contrib.admin.models import User
from userapp.models import UserProfile , Failedlogintry

def check_ip_required(f):
     def wrap(request, *args, **kwargs):
         #it will check session of admin user , if session key exist then it will allow further else will redirect to login page
         try:
         #check admin user exists or not
             user=User.objects.get(username=request.user)
             #fetch user profile obj
             userprofileobj = Profile.objects.filter(user=user)
             iplist =[]
             for i in userprofileobj:
                 iplist.append(str(i.ip))
             #ip list is having all  ip address of that admin stored in backend
             loginip=str(request.META['REMOTE_ADDR'])
             if len(iplist) is 0: # if admin is not having any ip stored in backend
                 logout(request) # logout session of admin user
                 Failed.objects.create(user=user,\                                                ip=request.META['REMOTE_ADDR']) # make a entry in failedlogintry table
                 return HttpResponse("You are not authorized to Logins.")

             if loginip not in iplist:
                 logout(request) #if ip address from which admin is trying to login is not in db then logout
                 Failed.objects.create(user=user,\ ip=request.META['REMOTE_ADDR'])
                 return HttpResponse("You are not authorized to Login.")
         except:
                 pass
     return f(request, *args, **kwargs)

wrap.__doc__=f.__doc__
wrap.__name__=f.__name__
return wrap

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admin.py
we can restrict any admin having only 10 ip in admin.py file
from django.contrib import admin
from userapp.models import UserProfile

class ProfileAdmin(admin.ModelAdmin):
     list_display=['user','ip']
     def save_model(self, request, obj, form, change):
          adminname = obj.user
          count = Profile.objects.filter(user=adminname).count()
          if count <= 9:
               obj.save()
         else:
               pass
admin.site.register(Profile, ProfileAdmin)

---

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urls.py from userapp.decorators import decorated_includes, check_ip_required
url(r'^admin/',decorated_includes(check_ip_required , include(admin.site.urls)) ),

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Please ignore indentation errors .if any issue please leave comment or mail me . Thanks & Regards:
Prashant Gaur
+91 9030015491
91prashantgaur@gmail.com

design a deque function in javascript

function Deque()
{
 this.stac=new Array();  
 this.popback=function(){ 
  return this.stac.pop(); 

 }

 this.pushback=function(item){
  this.stac.push(item);
 }

 this.popfront=function(){
  return this.stac.shift();
 }

 this.pushfront=function(item){
  this.stac.unshift(item);
 }
}

//push is function of Array in javascript to enter variable in last index of array.

//pop is function of Array in javascript to remove last variable from array.

//shift is use to add element in start of the array .

//unshift is use to remove element from start of the array .

function implementation {
 
var deque=new Deque();
deque.pushfront("Prashant");
deque.pushfront("Gaur");
deque.pushback("Deepak");
alert(deque.popfront());
alert(deque.popback()); 
alert(deque.popback()); 
alert(deque.popback()); 



 
}



You can design function for Queue  also only by using pop and unshift . :)




Thanks & Regards :
Prashant Gaur
+91 9030015491
91prashantgaur@gmail.com