233 lines
9.2 KiB
Python
233 lines
9.2 KiB
Python
import json
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import logging
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import random
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import string
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from django.conf import settings
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from django.contrib.auth import logout, authenticate, login
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from django.contrib.auth.models import User
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from django.contrib.auth.models import User
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from django.core.context_processors import csrf
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from django.core.validators import validate_email, validate_slug
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from django.db import connection
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from django.http import HttpResponse
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from django.shortcuts import redirect
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from mitxmako.shortcuts import render_to_response, render_to_string
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from models import Registration, UserProfile
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log = logging.getLogger("mitx.auth")
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def csrf_token(context):
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csrf_token = context.get('csrf_token', '')
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if csrf_token == 'NOTPROVIDED':
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return ''
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return u'<div style="display:none"><input type="hidden" name="csrfmiddlewaretoken" value="%s" /></div>' % (csrf_token)
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def index(request):
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if settings.COURSEWARE_ENABLED and request.user.is_authenticated():
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return redirect('/courseware')
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else:
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csrf_token = csrf(request)['csrf_token']
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# TODO: Clean up how 'error' is done.
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return render_to_response('index.html', {'error' : '',
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'csrf': csrf_token })
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# def courseinfo(request):
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# if request.user.is_authenticated():
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# return redirect('/courseware')
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# else:
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# csrf_token = csrf(request)['csrf_token']
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# # TODO: Clean up how 'error' is done.
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# return render_to_response('courseinfo.html', {'error' : '',
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# 'csrf': csrf_token })
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# Need different levels of logging
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def login_user(request, error=""):
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if 'email' not in request.POST or 'password' not in request.POST:
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return render_to_response('login.html', {'error':error.replace('+',' ')})
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email = request.POST['email']
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password = request.POST['password']
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try:
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user = User.objects.get(email=email)
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except User.DoesNotExist:
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log.warning("Login failed - Unknown user email: {0}".format(email))
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return HttpResponse(json.dumps({'success':False,
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'error': 'Invalid login'})) # TODO: User error message
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username = user.username
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user = authenticate(username=username, password=password)
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if user is None:
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log.warning("Login failed - password for {0} is invalid".format(email))
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return HttpResponse(json.dumps({'success':False,
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'error': 'Invalid login'}))
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if user is not None and user.is_active:
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try:
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login(request, user)
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if request.POST['remember'] == 'true':
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request.session.set_expiry(None) # or change to 604800 for 7 days
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log.debug("Setting user session to never expire")
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else:
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request.session.set_expiry(0)
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except Exception as e:
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log.critical("Login failed - Could not create session. Is memcached running?")
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log.exception(e)
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log.info("Login success - {0} ({1})".format(username, email))
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return HttpResponse(json.dumps({'success':True}))
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log.warning("Login failed - Account not active for user {0}".format(username))
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return HttpResponse(json.dumps({'success':False,
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'error': 'Account not active. Check your e-mail.'}))
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def logout_user(request):
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logout(request)
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# print len(connection.queries), connection.queries
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return redirect('/')
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def change_setting(request):
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if not request.user.is_authenticated():
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return redirect('/')
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up=UserProfile.objects.get(user=request.user)
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if 'location' in request.POST:
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# print "loc"
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up.location=request.POST['location']
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if 'language' in request.POST:
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# print "lang"
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up.language=request.POST['language']
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up.save()
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return HttpResponse(json.dumps({'success':True,
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'language':up.language,
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'location':up.location,}))
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def create_account(request, post_override=None):
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js={'success':False}
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post_vars = post_override if post_override else request.POST
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# Confirm we have a properly formed request
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for a in ['username', 'email', 'password', 'location', 'language', 'name']:
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if a not in post_vars:
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js['value']="Error (401 {field}). E-mail us.".format(field=a)
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return HttpResponse(json.dumps(js))
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if post_vars['honor_code']!=u'true':
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js['value']="To enroll, you must follow the honor code.".format(field=a)
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return HttpResponse(json.dumps(js))
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if post_vars['terms_of_service']!=u'true':
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js['value']="You must accept the terms of service.".format(field=a)
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return HttpResponse(json.dumps(js))
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# Confirm appropriate fields are there.
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# TODO: Check e-mail format is correct.
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# TODO: Confirm e-mail is not from a generic domain (mailinator, etc.)? Not sure if
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# this is a good idea
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# TODO: Check password is sane
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for a in ['username', 'email', 'password', 'terms_of_service', 'honor_code']:
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if len(post_vars[a])<2:
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js['value']="{field} is required.".format(field=a)
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return HttpResponse(json.dumps(js))
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try:
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validate_email(post_vars['email'])
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except:
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js['value']="Valid e-mail is required.".format(field=a)
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return HttpResponse(json.dumps(js))
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try:
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validate_slug(post_vars['username'])
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except:
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js['value']="Username should only consist of A-Z and 0-9.".format(field=a)
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return HttpResponse(json.dumps(js))
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# Confirm username and e-mail are unique. TODO: This should be in a transaction
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if len(User.objects.filter(username=post_vars['username']))>0:
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js['value']="An account with this username already exists."
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return HttpResponse(json.dumps(js))
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if len(User.objects.filter(email=post_vars['email']))>0:
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js['value']="An account with this e-mail already exists."
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return HttpResponse(json.dumps(js))
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u=User(username=post_vars['username'],
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email=post_vars['email'],
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is_active=False)
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u.set_password(post_vars['password'])
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r=Registration()
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# TODO: Rearrange so that if part of the process fails, the whole process fails.
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# Right now, we can have e.g. no registration e-mail sent out and a zombie account
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u.save()
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r.register(u)
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up=UserProfile(user=u)
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up.name=post_vars['name']
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up.language=post_vars['language']
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up.location=post_vars['location']
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up.save()
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d={'name':post_vars['name'],
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'key':r.activation_key,
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'site':settings.SITE_NAME}
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subject = render_to_string('activation_email_subject.txt',d)
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# Email subject *must not* contain newlines
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subject = ''.join(subject.splitlines())
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message = render_to_string('activation_email.txt',d)
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try:
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if not settings.GENERATE_RANDOM_USER_CREDENTIALS:
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res=u.email_user(subject, message, settings.DEFAULT_FROM_EMAIL)
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except:
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js['value']=str(sys.exc_info())
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return HttpResponse(json.dumps(js))
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js={'success':True,
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'value':render_to_string('registration/reg_complete.html', {'email':post_vars['email'],
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'csrf':csrf(request)['csrf_token']})}
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# print len(connection.queries), connection.queries
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return HttpResponse(json.dumps(js), mimetype="application/json")
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def create_random_account(create_account_function):
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def id_generator(size=6, chars=string.ascii_uppercase + string.ascii_lowercase + string.digits):
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return ''.join(random.choice(chars) for x in range(size))
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def inner_create_random_account(request):
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post_override= {'username' : "random_" + id_generator(),
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'email' : id_generator(size=10, chars=string.ascii_lowercase) + "_dummy_test@mitx.mit.edu",
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'password' : id_generator(),
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'location' : id_generator(size=5, chars=string.ascii_uppercase),
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'language' : id_generator(size=5, chars=string.ascii_uppercase) + "ish",
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'name' : id_generator(size=5, chars=string.ascii_lowercase) + " " + id_generator(size=7, chars=string.ascii_lowercase),
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'honor_code' : u'true',
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'terms_of_service' : u'true',}
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# print "Creating random account: " , post_override
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return create_account_function(request, post_override = post_override)
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return inner_create_random_account
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if settings.GENERATE_RANDOM_USER_CREDENTIALS:
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create_account = create_random_account(create_account)
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def activate_account(request, key):
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r=Registration.objects.filter(activation_key=key)
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if len(r)==1:
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r[0].activate()
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resp = render_to_response("activation_complete.html",{'csrf':csrf(request)['csrf_token']})
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# print len(connection.queries), connection.queries
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return resp
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if len(r)==0:
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return render_to_response("activation_invalid.html",{'csrf':csrf(request)['csrf_token']})
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return HttpResponse("Unknown error. Please e-mail us to let us know how it happened.")
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