112 lines
4.5 KiB
Python
112 lines
4.5 KiB
Python
from django.shortcuts import render
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from django.views.decorators.cache import never_cache
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from django.template.context_processors import csrf
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from django.http import HttpResponse
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from .Common import get_redirect_url
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from .models import *
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import simplejson
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import random
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import string
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import datetime
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#TODO :
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# - Show authtificator panel on login everytime if RECOVERY is not deactivated
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# - Generation abuse checks
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def token_left(request, username=None):
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if not username and request:
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username = request.user.username
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uk = User_Keys.objects.filter(username=username, key_type = "RECOVERY")
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keyLeft=0
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for key in uk:
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keyEnabled = key.properties["enabled"]
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for i in range(len(keyEnabled)):
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if keyEnabled[i]:
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keyLeft += 1
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return keyLeft
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def delTokens(request):
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#Only when all MFA have been deactivated, or to generate new !
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#We iterate only to clean if any error happend and multiple entry of RECOVERY created for one user
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for key in User_Keys.objects.filter(username=request.user.username, key_type = "RECOVERY"):
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if key.username == request.user.username:
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key.delete()
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def newTokens(username):
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# Separated from genTokens to be able to regenerate codes after login if last code has been used
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newKeys = []
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for i in range(5):
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token = ''.join(random.choice(string.ascii_uppercase + string.ascii_lowercase + string.digits) for _ in range(10))
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newKeys.append(token)
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uk=User_Keys()
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uk.username=username
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uk.properties={"secret_keys":newKeys, "enabled":[True for j in range(5)]}
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uk.key_type="RECOVERY"
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uk.save()
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def genTokens(request, softGen=False):
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if not softGen or (softGen and token_left(request) == 0):
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#Delete old ones
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delTokens(request)
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number = 5
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#Then generate new one
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newTokens(request.user.username)
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return HttpResponse("Success")
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def verify_login(request, username,token):
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for key in User_Keys.objects.filter(username=username, key_type = "RECOVERY"):
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secret_keys = key.properties["secret_keys"]
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for i in range(len(secret_keys)):
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if token == secret_keys[i] and key.properties["enabled"][i]:
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key.properties["enabled"][i] = False
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key.save()
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lastToken = False
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if token_left(None, username) == 0:
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lastToken = True
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return [True, key.id, lastToken]
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return [False]
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def getTokens(request):
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tokens = []
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enable = []
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for key in User_Keys.objects.filter(username=request.user.username, key_type = "RECOVERY"):
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secret_keys = key.properties["secret_keys"]
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for i in range(len(secret_keys)):
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tokens.append(secret_keys[i])
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enable.append(key.properties["enabled"][i])
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return HttpResponse(simplejson.dumps({"keys":tokens, "enable":enable}))
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@never_cache
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def auth(request):
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from .views import login
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context=csrf(request)
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if request.method=="POST":
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tokenLength = len(request.POST["otp"])
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if tokenLength == 10 and "RECOVERY" not in settings.MFA_UNALLOWED_METHODS:
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#Backup code check
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resBackup=verify_login(request, request.session["base_username"], token=request.POST["otp"])
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if resBackup[0]:
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mfa = {"verified": True, "method": "RECOVERY","id":resBackup[1], "lastBackup":resBackup[2]}
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if getattr(settings, "MFA_RECHECK", False):
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mfa["next_check"] = datetime.datetime.timestamp((datetime.datetime.now()
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+ datetime.timedelta(
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seconds=random.randint(settings.MFA_RECHECK_MIN, settings.MFA_RECHECK_MAX))))
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request.session["mfa"] = mfa
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if resBackup[2]:
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#If the last bakup code has just been used, we return a response insead of redirecting to login
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context["lastBackup"] = True
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return render(request,"TOTP/Auth.html", context)
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return login(request)
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elif request.method=="GET":
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mfa = request.session["mfa"]
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if mfa and mfa["verified"] and mfa["method"] == "RECOVERY" and "lastBackup":
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return login(request)
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context["invalid"]=True
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return render(request,"TOTP/Auth.html", context)
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@never_cache
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def start(request):
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"""Start Managing recovery tokens"""
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return render(request,"RECOVERY/Add.html",get_redirect_url()) |