code.grnet.gr Git - flowspy/blob - flowspec/views.py

   1 # Create your views here.
   2 import urllib2
   3 import socket
   4 import json
   5 from django import forms
   6 from django.views.decorators.csrf import csrf_exempt
   7 from django.core import urlresolvers
   8 from django.core import serializers
   9 from django.contrib.auth.decorators import login_required
  10 from django.contrib.auth import logout
  11 from django.contrib.sites.models import Site
  12 from django.contrib.auth.models import User
  13 from django.http import HttpResponseRedirect, HttpResponseForbidden, HttpResponse
  14 from django.shortcuts import get_object_or_404, render_to_response
  15 from django.core.context_processors import request
  16 from django.template.context import RequestContext
  17 from django.template.loader import get_template, render_to_string
  18 from django.core.urlresolvers import reverse
  19 from django.contrib import messages
  20 from flowspy.accounts.models import *
  21 from ipaddr import *
  22
  23 from django.contrib.auth import authenticate, login
  24
  25 from django.forms.models import model_to_dict
  26
  27 from flowspy.flowspec.forms import *
  28 from flowspy.flowspec.models import *
  29 from flowspy.peers.models import *
  30
  31 from registration.models import RegistrationProfile
  32
  33 from copy import deepcopy
  34 from flowspy.utils.decorators import shib_required
  35
  36 from django.views.decorators.cache import never_cache
  37 from django.conf import settings
  38 from django.core.mail.message import EmailMessage
  39 import datetime
  40 import os
  41
  42 LOG_FILENAME = os.path.join(settings.LOG_FILE_LOCATION, 'celery_jobs.log')
  43 #FORMAT = '%(asctime)s %(levelname)s: %(message)s'
  44 #logging.basicConfig(format=FORMAT)
  45 formatter = logging.Formatter('%(asctime)s %(levelname)s %(clientip)s %(user)s: %(message)s')
  46
  47 logger = logging.getLogger(__name__)
  48 logger.setLevel(logging.DEBUG)
  49 handler = logging.FileHandler(LOG_FILENAME)
  50 handler.setFormatter(formatter)
  51 logger.addHandler(handler)
  52
  53 @login_required
  54 def user_routes(request):
  55     user_routes = Route.objects.filter(applier=request.user)
  56     return render_to_response('user_routes.html', {'routes': user_routes},
  57                               context_instance=RequestContext(request))
  58
  59 def welcome(request):
  60     return render_to_response('welcome.html', context_instance=RequestContext(request))
  61
  62 @login_required
  63 @never_cache
  64 def group_routes(request):
  65     group_routes = []
  66     try:
  67         peer = request.user.get_profile().peer
  68     except UserProfile.DoesNotExist:
  69         error = "User <strong>%s</strong> does not belong to any peer or organization. It is not possible to create new firewall rules.<br>Please contact Helpdesk to resolve this issue" % request.user.username
  70         return render_to_response('error.html', {'error': error})
  71     if peer:
  72        peer_members = UserProfile.objects.filter(peer=peer)
  73        users = [prof.user for prof in peer_members]
  74        group_routes = Route.objects.filter(applier__in=users)
  75        if request.user.is_superuser:
  76            group_routes = Route.objects.all()
  77        return render_to_response('user_routes.html', {'routes': group_routes},
  78                               context_instance=RequestContext(request))
  79
  80
  81 @login_required
  82 @never_cache
  83 def add_route(request):
  84     applier = request.user.pk
  85     applier_peer_networks = request.user.get_profile().peer.networks.all()
  86     if not applier_peer_networks:
  87          messages.add_message(request, messages.WARNING,
  88                              "Insufficient rights on administrative networks. Cannot add rule. Contact your administrator")
  89          return HttpResponseRedirect(reverse("group-routes"))
  90     if request.method == "GET":
  91         form = RouteForm(initial={'applier': applier})
  92         if not request.user.is_superuser:
  93             form.fields['then'] = forms.ModelMultipleChoiceField(queryset=ThenAction.objects.filter(action__in=settings.UI_USER_THEN_ACTIONS).order_by('action'), required=True)
  94             form.fields['protocol'] = forms.ModelMultipleChoiceField(queryset=MatchProtocol.objects.filter(protocol__in=settings.UI_USER_PROTOCOLS).order_by('protocol'), required=False)
  95         return render_to_response('apply.html', {'form': form, 'applier': applier},
  96                                   context_instance=RequestContext(request))
  97
  98     else:
  99         request_data = request.POST.copy()
 100         if request.user.is_superuser:
 101             request_data['issuperuser'] = request.user.username
 102         else:
 103             request_data['applier'] = applier
 104             try:
 105                 del requset_data['issuperuser']
 106             except:
 107                 pass
 108         form = RouteForm(request_data)
 109         if form.is_valid():
 110             route=form.save(commit=False)
 111             if not request.user.is_superuser:
 112                 route.applier = request.user
 113             route.status = "PENDING"
 114             route.response = "Applying..."
 115             route.source = IPNetwork("%s/%s" %(IPNetwork(route.source).network.compressed, IPNetwork(route.source).prefixlen)).compressed
 116             route.destination = IPNetwork("%s/%s" %(IPNetwork(route.destination).network.compressed, IPNetwork(route.destination).prefixlen)).compressed
 117             route.save()
 118             form.save_m2m()
 119             route.commit_add()
 120             requesters_address = request.META['HTTP_X_FORWARDED_FOR']
 121             mail_body = render_to_string("rule_add_mail.txt",
 122                                              {"route": route, "address": requesters_address})
 123             user_mail = "%s" %route.applier.email
 124             user_mail = user_mail.split(';')
 125             send_new_mail(settings.EMAIL_SUBJECT_PREFIX + "Rule %s creation request submitted by %s" %(route.name, route.applier.username),
 126                               mail_body, settings.SERVER_EMAIL, user_mail,
 127                               get_peer_techc_mails(route.applier))
 128             d = { 'clientip' : "%s"%requesters_address, 'user' : route.applier.username }
 129             logger.info(mail_body, extra=d)
 130             return HttpResponseRedirect(reverse("group-routes"))
 131         else:
 132             if not request.user.is_superuser:
 133                 form.fields['then'] = forms.ModelMultipleChoiceField(queryset=ThenAction.objects.filter(action__in=settings.UI_USER_THEN_ACTIONS).order_by('action'), required=True)
 134                 form.fields['protocol'] = forms.ModelMultipleChoiceField(queryset=MatchProtocol.objects.filter(protocol__in=settings.UI_USER_PROTOCOLS).order_by('protocol'), required=False)
 135             return render_to_response('apply.html', {'form': form, 'applier':applier},
 136                                       context_instance=RequestContext(request))
 137
 138 @login_required
 139 @never_cache
 140 def edit_route(request, route_slug):
 141     applier = request.user.pk
 142     applier_peer = request.user.get_profile().peer
 143     route_edit = get_object_or_404(Route, name=route_slug)
 144     route_edit_applier_peer = route_edit.applier.get_profile().peer
 145     if applier_peer != route_edit_applier_peer and (not request.user.is_superuser):
 146         messages.add_message(request, messages.WARNING,
 147                              "Insufficient rights to edit rule %s" %(route_slug))
 148         return HttpResponseRedirect(reverse("group-routes"))
 149 #    if route_edit.status == "ADMININACTIVE" :
 150 #        messages.add_message(request, messages.WARNING,
 151 #                             "Administrator has disabled editing of rule %s" %(route_slug))
 152 #        return HttpResponseRedirect(reverse("group-routes"))
 153 #    if route_edit.status == "EXPIRED" :
 154 #        messages.add_message(request, messages.WARNING,
 155 #                             "Cannot edit the expired rule %s. Contact helpdesk to enable it" %(route_slug))
 156 #        return HttpResponseRedirect(reverse("group-routes"))
 157     if route_edit.status == "PENDING" :
 158         messages.add_message(request, messages.WARNING,
 159                              "Cannot edit a pending rule: %s." %(route_slug))
 160         return HttpResponseRedirect(reverse("group-routes"))
 161     route_original = deepcopy(route_edit)
 162     if request.POST:
 163         request_data = request.POST.copy()
 164         if request.user.is_superuser:
 165             request_data['issuperuser'] = request.user.username
 166         else:
 167             request_data['applier'] = applier
 168             try:
 169                 del request_data['issuperuser']
 170             except:
 171                 pass
 172         form = RouteForm(request_data, instance = route_edit)
 173         critical_changed_values = ['source', 'destination', 'sourceport', 'destinationport', 'port', 'protocol', 'then']
 174         if form.is_valid():
 175             changed_data = form.changed_data
 176             route=form.save(commit=False)
 177             route.name = route_original.name
 178             route.status = route_original.status
 179             route.response = route_original.response
 180             if not request.user.is_superuser:
 181                 route.applier = request.user
 182             if bool(set(changed_data) & set(critical_changed_values)) or (not route_original.status == 'ACTIVE'):
 183                 route.status = "PENDING"
 184                 route.response = "Applying..."
 185                 route.source = IPNetwork("%s/%s" %(IPNetwork(route.source).network.compressed, IPNetwork(route.source).prefixlen)).compressed
 186                 route.destination = IPNetwork("%s/%s" %(IPNetwork(route.destination).network.compressed, IPNetwork(route.destination).prefixlen)).compressed
 187             route.save()
 188             if bool(set(changed_data) & set(critical_changed_values)) or (not route_original.status == 'ACTIVE'):
 189                 form.save_m2m()
 190                 route.commit_edit()
 191                 requesters_address = request.META['HTTP_X_FORWARDED_FOR']
 192                 mail_body = render_to_string("rule_edit_mail.txt",
 193                                              {"route": route, "address": requesters_address})
 194                 user_mail = "%s" %route.applier.email
 195                 user_mail = user_mail.split(';')
 196                 send_new_mail(settings.EMAIL_SUBJECT_PREFIX + "Rule %s edit request submitted by %s" %(route.name, route.applier.username),
 197                               mail_body, settings.SERVER_EMAIL, user_mail,
 198                               get_peer_techc_mails(route.applier))
 199                 d = { 'clientip' : requesters_address, 'user' : route.applier.username }
 200                 logger.info(mail_body, extra=d)
 201             return HttpResponseRedirect(reverse("group-routes"))
 202         else:
 203             if not request.user.is_superuser:
 204                 form.fields['then'] = forms.ModelMultipleChoiceField(queryset=ThenAction.objects.filter(action__in=settings.UI_USER_THEN_ACTIONS).order_by('action'), required=True)
 205                 form.fields['protocol'] = forms.ModelMultipleChoiceField(queryset=MatchProtocol.objects.filter(protocol__in=settings.UI_USER_PROTOCOLS).order_by('protocol'), required=False)
 206             return render_to_response('apply.html', {'form': form, 'edit':True, 'applier': applier},
 207                                       context_instance=RequestContext(request))
 208     else:
 209         if (not route_original.status == 'ACTIVE'):
 210             route_edit.expires = datetime.date.today() + datetime.timedelta(days = settings.EXPIRATION_DAYS_OFFSET)
 211         dictionary = model_to_dict(route_edit, fields=[], exclude=[])
 212         if request.user.is_superuser:
 213             dictionary['issuperuser'] = request.user.username
 214         else:
 215             try:
 216                 del dictionary['issuperuser']
 217             except:
 218                 pass
 219         form = RouteForm(dictionary)
 220         if not request.user.is_superuser:
 221             form.fields['then'] = forms.ModelMultipleChoiceField(queryset=ThenAction.objects.filter(action__in=settings.UI_USER_THEN_ACTIONS).order_by('action'), required=True)
 222             form.fields['protocol'] = forms.ModelMultipleChoiceField(queryset=MatchProtocol.objects.filter(protocol__in=settings.UI_USER_PROTOCOLS).order_by('protocol'), required=False)
 223         return render_to_response('apply.html', {'form': form, 'edit':True, 'applier': applier},
 224                                   context_instance=RequestContext(request))
 225
 226 @login_required
 227 @never_cache
 228 def delete_route(request, route_slug):
 229     if request.is_ajax():
 230         route = get_object_or_404(Route, name=route_slug)
 231         applier_peer = route.applier.get_profile().peer
 232         requester_peer = request.user.get_profile().peer
 233         if applier_peer == requester_peer or request.user.is_superuser:
 234             route.status = "PENDING"
 235             route.expires = datetime.date.today()
 236             if not request.user.is_superuser:
 237                 route.applier = request.user
 238             route.response = "Suspending..."
 239             route.save()
 240             route.commit_delete()
 241             requesters_address = request.META['HTTP_X_FORWARDED_FOR']
 242             mail_body = render_to_string("rule_delete_mail.txt",
 243                                              {"route": route, "address": requesters_address})
 244             user_mail = "%s" %route.applier.email
 245             user_mail = user_mail.split(';')
 246             send_new_mail(settings.EMAIL_SUBJECT_PREFIX + "Rule %s removal request submitted by %s" %(route.name, route.applier.username),
 247                               mail_body, settings.SERVER_EMAIL, user_mail,
 248                              get_peer_techc_mails(route.applier))
 249             d = { 'clientip' : requesters_address, 'user' : route.applier.username }
 250             logger.info(mail_body, extra=d)
 251         html = "<html><body>Done</body></html>"
 252         return HttpResponse(html)
 253     else:
 254         return HttpResponseRedirect(reverse("group-routes"))
 255
 256 @login_required
 257 @never_cache
 258 def user_profile(request):
 259     user = request.user
 260     try:
 261         peer = request.user.get_profile().peer
 262         peers = Peer.objects.filter(pk=peer.pk)
 263         if user.is_superuser:
 264             peers = Peer.objects.all()
 265     except UserProfile.DoesNotExist:
 266         error = "User <strong>%s</strong> does not belong to any peer or organization. It is not possible to create new firewall rules.<br>Please contact Helpdesk to resolve this issue" % user.username
 267         return render_to_response('error.html', {'error': error})
 268     return render_to_response('profile.html', {'user': user, 'peers':peers},
 269                                   context_instance=RequestContext(request))
 270
 271 @never_cache
 272 def user_login(request):
 273     try:
 274         error_username = False
 275         error_orgname = False
 276         error_entitlement = False
 277         error_mail = False
 278         has_entitlement = False
 279         error = ''
 280         username = request.META['HTTP_EPPN']
 281         if not username:
 282             error_username = True
 283         firstname = request.META['HTTP_SHIB_INETORGPERSON_GIVENNAME']
 284         lastname = request.META['HTTP_SHIB_PERSON_SURNAME']
 285         mail = request.META['HTTP_SHIB_INETORGPERSON_MAIL']
 286         organization = request.META['HTTP_SHIB_HOMEORGANIZATION']
 287         entitlement = request.META['HTTP_SHIB_EP_ENTITLEMENT']
 288         if settings.SHIB_AUTH_ENTITLEMENT in entitlement.split(";"):
 289             has_entitlement = True
 290         if not has_entitlement:
 291             error_entitlement = True
 292         if not organization:
 293             error_orgname = True
 294         if not mail:
 295             error_mail = True
 296         if error_username:
 297             error = "Your idP should release the HTTP_EPPN attribute towards this service<br>"
 298         if error_orgname:
 299             error = error + "Your idP should release the HTTP_SHIB_HOMEORGANIZATION attribute towards this service<br>"
 300         if error_entitlement:
 301             error = error + "Your idP should release an appropriate HTTP_SHIB_EP_ENTITLEMENT attribute towards this service<br>"
 302         if error_mail:
 303             error = error + "Your idP should release the HTTP_SHIB_INETORGPERSON_MAIL attribute towards this service"
 304         if error_username or error_orgname or error_entitlement or error_mail:
 305             return render_to_response('error.html', {'error': error, "missing_attributes": True},
 306                                   context_instance=RequestContext(request))
 307         try:
 308             user = User.objects.get(username__exact=username)
 309             user.email = mail
 310             user.first_name = firstname
 311             user.last_name = lastname
 312             user.save()
 313             user_exists = True
 314         except:
 315             user_exists = False
 316         user = authenticate(username=username, firstname=firstname, lastname=lastname, mail=mail, authsource='shibboleth')
 317         if user is not None:
 318             try:
 319                 peer = Peer.objects.get(domain_name=organization)
 320                 up = UserProfile.objects.get_or_create(user=user,peer=peer)
 321             except:
 322                 error = "Your organization's domain name does not match our peers' domain names<br>Please contact Helpdesk to resolve this issue"
 323                 return render_to_response('error.html', {'error': error})
 324             if not user_exists:
 325                 user_activation_notify(user)
 326             if user.is_active:
 327                login(request, user)
 328                return HttpResponseRedirect(reverse("group-routes"))
 329             else:
 330                 error = "User account <strong>%s</strong> is pending activation. Administrators have been notified and will activate this account within the next days. <br>If this account has remained inactive for a long time contact your technical coordinator or GRNET Helpdesk" %user.username
 331                 return render_to_response('error.html', {'error': error, 'inactive': True},
 332                                   context_instance=RequestContext(request))
 333         else:
 334             error = "Something went wrong during user authentication. Contact your administrator"
 335             return render_to_response('error.html', {'error': error,},
 336                                   context_instance=RequestContext(request))
 337     except Exception:
 338         error = "Invalid login procedure"
 339         return render_to_response('error.html', {'error': error,},
 340                                   context_instance=RequestContext(request))
 341         # Return an 'invalid login' error message.
 342 #    return HttpResponseRedirect(reverse("user-routes"))
 343
 344 def user_activation_notify(user):
 345     current_site = Site.objects.get_current()
 346     subject = render_to_string('registration/activation_email_subject.txt',
 347                                    { 'site': current_site })
 348     # Email subject *must not* contain newlines
 349     subject = ''.join(subject.splitlines())
 350     registration_profile = RegistrationProfile.objects.create_profile(user)
 351     message = render_to_string('registration/activation_email.txt',
 352                                    { 'activation_key': registration_profile.activation_key,
 353                                      'expiration_days': settings.ACCOUNT_ACTIVATION_DAYS,
 354                                      'site': current_site,
 355                                      'user': user })
 356     send_new_mail(settings.EMAIL_SUBJECT_PREFIX + subject,
 357                               message, settings.SERVER_EMAIL,
 358                              get_peer_techc_mails(user), [])
 359
 360 @login_required
 361 @never_cache
 362 def add_rate_limit(request):
 363     if request.method == "GET":
 364         form = ThenPlainForm()
 365         return render_to_response('add_rate_limit.html', {'form': form,},
 366                                   context_instance=RequestContext(request))
 367
 368     else:
 369         form = ThenPlainForm(request.POST)
 370         if form.is_valid():
 371             then=form.save(commit=False)
 372             then.action_value = "%sk"%then.action_value
 373             then.save()
 374             response_data = {}
 375             response_data['pk'] = "%s" %then.pk
 376             response_data['value'] = "%s:%s" %(then.action, then.action_value)
 377             return HttpResponse(json.dumps(response_data), mimetype='application/json')
 378         else:
 379             return render_to_response('add_rate_limit.html', {'form': form,},
 380                                       context_instance=RequestContext(request))
 381
 382 @login_required
 383 @never_cache
 384 def add_port(request):
 385     if request.method == "GET":
 386         form = PortPlainForm()
 387         return render_to_response('add_port.html', {'form': form,},
 388                                   context_instance=RequestContext(request))
 389
 390     else:
 391         form = PortPlainForm(request.POST)
 392         if form.is_valid():
 393             port=form.save()
 394             response_data = {}
 395             response_data['value'] = "%s" %port.pk
 396             response_data['text'] = "%s" %port.port
 397             return HttpResponse(json.dumps(response_data), mimetype='application/json')
 398         else:
 399             return render_to_response('add_port.html', {'form': form,},
 400                                       context_instance=RequestContext(request))
 401
 402 @login_required
 403 @never_cache
 404 def user_logout(request):
 405     logout(request)
 406     return HttpResponseRedirect(reverse('group-routes'))
 407
 408 @never_cache
 409 def load_jscript(request, file):
 410     long_polling_timeout = int(settings.POLL_SESSION_UPDATE)*1000 + 10000
 411     return render_to_response('%s.js' % file, {'timeout': long_polling_timeout}, context_instance=RequestContext(request), mimetype="text/javascript")
 412
 413
 414 def get_peer_techc_mails(user):
 415     mail = []
 416     additional_mail = []
 417     techmails_list = []
 418     user_mail = "%s" %user.email
 419     user_mail = user_mail.split(';')
 420     techmails = user.get_profile().peer.techc_emails.all()
 421     if techmails:
 422         for techmail in techmails:
 423             techmails_list.append(techmail.email)
 424     if settings.NOTIFY_ADMIN_MAILS:
 425         additional_mail = settings.NOTIFY_ADMIN_MAILS
 426 #    mail.extend(user_mail)
 427     mail.extend(additional_mail)
 428     mail.extend(techmails_list)
 429     return mail
 430
 431
 432 def send_new_mail(subject, message, from_email, recipient_list, bcc_list):
 433     return EmailMessage(subject, message, from_email, recipient_list, bcc_list).send()
 434