views.py 21.1 KB
Newer Older
1
2
# standard library imports
from __future__ import absolute_import, print_function
3
import random
4
from distutils.util import strtobool
5
6
from operator import attrgetter
from itertools import chain
7
import re
8
# core django imports
9
from django.http import HttpResponseForbidden, HttpResponseRedirect, Http404
Daniel W Bond's avatar
pep8 me    
Daniel W Bond committed
10
from django.views.generic import CreateView, ListView, DetailView, FormView, DeleteView
11
from django.core.urlresolvers import reverse
12
13
from django.contrib import messages
from django.utils.safestring import mark_safe
14
from django.forms.widgets import HiddenInput
15
16
17
18
from django.conf import settings
from django.template.loader import get_template
from django.core.mail import EmailMultiAlternatives, get_connection
from django.template import Context
19
from django.core.exceptions import ObjectDoesNotExist
20
# third party imports
21
from braces.views import LoginRequiredMixin, FormValidMessageMixin
22
from cas.views import login as cas_login
23
from ratelimit.decorators import ratelimit
24
# imports from your apps
Daniel W Bond's avatar
Daniel W Bond committed
25
from .models import Student, Major, Confirmation
26
from .forms import StudentUpdateForm, FarewellFeedbackForm
27
from .student_messages import return_messages
28
from housing.models import Room
29
from housing.views import shadowbanning
30

31
32

def custom_cas_login(request, *args, **kwargs):
33
    """If a student has not completed the welcome walkthrough, go there on login."""
34
35
    response = cas_login(request, *args, **kwargs)
    # returns HttpResponseRedirect
36

37
38
    if request.user.is_authenticated():

39
40
41
        if not request.user.student.totally_done():

            if not request.user.student.completedName:
42
                return HttpResponseRedirect(reverse('welcomeName'))
43
            elif not request.user.student.completedPrivacy:
44
                return HttpResponseRedirect(reverse('welcomePrivacy'))
45
            elif not request.user.student.completedMajor:
46
                return HttpResponseRedirect(reverse('welcomeMajor'))
47
            elif not request.user.student.completedSocial:
48
                return HttpResponseRedirect(reverse('welcomeSocial'))
49
50
51
        else:
            welcome_back = random.choice(return_messages)
            messages.add_message(request, messages.INFO, mark_safe(welcome_back))
52
53
54
55

    return response


56
# only two students on the same floor can confirm one another (crowdsourced verification)
57
58
def on_the_same_floor(student, confirmer):
    if student == confirmer:
59
        # Student is confirmer
60
61
62
63
64
        return False
    student_floor = student.get_floor()
    confirmer_floor = confirmer.get_floor()
    # room hasn't been set yet
    if (student_floor is None) or (confirmer_floor is None):
65
        # one Student is None
66
67
        return False
    elif not(student_floor == confirmer_floor):
68
        # not the same floor
69
70
71
72
73
        return False
    else:
        return True


74
75
76
77
78
79
def pk_or_none(me, obj):
    if obj is None:
        return None
    else:
        return obj.pk

80

81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
def create_email(text_path, html_path, subject, to, context):
    text_email = get_template(text_path)
    html_email = get_template(html_path)

    email_context = Context(context)

    from_email, cc = ('noreply@srct.gmu.edu',
                      '')

    text_content = text_email.render(email_context)
    html_content = html_email.render(email_context)

    msg = EmailMultiAlternatives(subject, text_content, from_email, [to], [cc])
    # mime multipart requires attaching text and html in this order
    msg.attach_alternative(html_content, 'text/html')
    return msg

98

99
100
101
102
103
def no_nums(name):
    no_numbers = re.sub('[0-9]', '', name)
    return no_numbers


104
105
106
# details about the student
class DetailStudent(LoginRequiredMixin, DetailView):
    model = Student
107
108
109
110
    context_object_name = 'student'
    template_name = 'detailStudent.html'

    login_url = 'login'
Daniel W Bond's avatar
Daniel W Bond committed
111

112
113
114
115
    def get(self, request, *args, **kwargs):

        current_url = self.request.get_full_path()
        url_uname = current_url.split('/')[3]
116
        detailed_student = Student.objects.get(user__username=url_uname)
117
118
119
120
121
122

        if (detailed_student in self.request.user.student.blocked_kids.all()):
            raise Http404
        else:
            return super(DetailStudent, self).get(request, *args, **kwargs)

Daniel W Bond's avatar
Daniel W Bond committed
123
124
125
    def get_context_data(self, **kwargs):
        context = super(DetailStudent, self).get_context_data(**kwargs)

126
        requesting_student = Student.objects.get(user=self.request.user)
Daniel W Bond's avatar
Daniel W Bond committed
127

128
129
130
131
132
        same_floor = on_the_same_floor(self.get_object(), requesting_student)

        flags = Confirmation.objects.filter(confirmer=requesting_student,
                                            student=self.get_object()).count()

Daniel W Bond's avatar
Daniel W Bond committed
133
134
135
136
137
        if flags:
            try:
                my_flag = Confirmation.objects.get(confirmer=requesting_student,
                                                   student=self.get_object())
            except Exception as e:
138
139
                print("Students are not supposed to be able to make more than one flag per student.")
                print(e)
140

Daniel W Bond's avatar
pep8 me    
Daniel W Bond committed
141
        # recognizably too complex
Daniel W Bond's avatar
Daniel W Bond committed
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
        def onFloor():
            floor_status = False
            if requesting_student.get_floor() == self.get_object().get_floor():
                floor_status = True
            return floor_status

        def inBuilding():
            floor_status = False
            if requesting_student.get_building() == self.get_object().get_building():
                floor_status = True
            return floor_status

        def shares():
            student_shares = False
            # if the student's privacy is floor and the requesting user is on their floor
            if(self.get_object().privacy == 'floor') and onFloor():
                student_shares = True
Daniel W Bond's avatar
Daniel W Bond committed
159
160
            # if the student's privacy is building and the requesting users is
            # on their floor or in their building
Daniel W Bond's avatar
Daniel W Bond committed
161
162
163
164
165
166
            elif(self.get_object().privacy == 'building') and inBuilding():
                student_shares = True
            # if the student's privacy is set to 'student'
            elif(self.get_object().privacy == 'students'):
                student_shares = True
            return student_shares
Daniel W Bond's avatar
Daniel W Bond committed
167

Daniel W Bond's avatar
Daniel W Bond committed
168
        context['shares'] = shares()
169
170
        context['same_floor'] = same_floor
        context['has_flagged'] = bool(flags)
Daniel W Bond's avatar
Daniel W Bond committed
171
172
        if flags:
            context['my_flag'] = my_flag
Daniel W Bond's avatar
Daniel W Bond committed
173
174
        return context

Daniel W Bond's avatar
Daniel W Bond committed
175

176
# update a student, but FormView to allow name update on same page
177
class UpdateStudent(LoginRequiredMixin, FormValidMessageMixin, FormView):
178
    template_name = 'update_student.html'
179
    form_class = StudentUpdateForm
180
181
    login_url = 'login'

182
183
    form_valid_message = "Your profile was successfully updated!"

184
185
186
187
188
189
    def get(self, request, *args, **kwargs):

        current_url = self.request.get_full_path()
        url_uname = current_url.split('/')[3]

        if not(url_uname == self.request.user.username):
190
191
            return HttpResponseRedirect(reverse('update_student',
                                                kwargs={'slug': self.request.user.username}))
192
193
194
        else:
            return super(UpdateStudent, self).get(request, *args, **kwargs)

195
196
197
198
    def get_context_data(self, **kwargs):
        context = super(UpdateStudent, self).get_context_data(**kwargs)

        me = Student.objects.get(user=self.request.user)
199
        majors = [pk_or_none(me, major) for major in me.major.all()]
200
201

        form = StudentUpdateForm(initial={'first_name': me.user.first_name,
202
203
                                          'last_name': me.user.last_name,
                                          'gender': me.gender,
204
                                          'show_gender': me.show_gender,
205
206
                                          'room': pk_or_none(me, me.room),
                                          'privacy': me.privacy,
207
                                          'blocked_kids': me.blocked_kids.all(),
208
                                          'major': majors,
209
210
                                          'graduating_year': me.graduating_year,
                                          'on_campus': me.on_campus, })
211

212
213
        form.fields['blocked_kids'].queryset = Student.objects.exclude(user=self.request.user)

214
        if me.recent_changes() > 2:
215
            form.fields['room'].widget = HiddenInput()
216
217
            form.fields['privacy'].widget = HiddenInput()
            form.fields['on_campus'].widget = HiddenInput()
218
219
        else:
            form.fields['room'].widget.user = self.request.user
220

221
222
223
224
225
        # bootstrap
        form.fields['first_name'].widget.attrs['class'] = 'form-control'
        form.fields['last_name'].widget.attrs['class'] = 'form-control'
        form.fields['graduating_year'].widget.attrs['class'] = 'form-control'

226
227
        # chosen
        form.fields['major'].widget.attrs['class'] = 'chosen-select'
228
        form.fields['blocked_kids'].widget.attrs['class'] = 'blocked-select'
229

230
        context['my_form'] = form
Daniel W Bond's avatar
Daniel W Bond committed
231

232
233
        return context

Daniel W Bond's avatar
Daniel W Bond committed
234
235
236
    @ratelimit(key='user', rate='5/m', method='POST', block=True)
    @ratelimit(key='user', rate='10/d', method='POST', block=True)
    def post(self, request, *args, **kwargs):
Daniel W Bond's avatar
pep8 me    
Daniel W Bond committed
237
        # for key, value in request.POST.iteritems():
238
        #     print(key, value)
Daniel W Bond's avatar
Daniel W Bond committed
239
240
        return super(UpdateStudent, self).post(request, *args, **kwargs)

241
242
243
    def form_valid(self, form):
        me = Student.objects.get(user=self.request.user)

Daniel W Bond's avatar
pep8 me    
Daniel W Bond committed
244
        # print("In form valid method!")
Daniel W Bond's avatar
Daniel W Bond committed
245

Daniel W Bond's avatar
pep8 me    
Daniel W Bond committed
246
        # for key, value in form.data.iteritems():
247
        #     print(key, value)
Daniel W Bond's avatar
Daniel W Bond committed
248

249
        current_room = me.room
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264

        # if you somehow got around the hidden widget, you're still outta luck
        if me.recent_changes() > 2:
            form_room = current_room
        else:
            try:
                form_room = Room.objects.get(pk=form.data['room'])
            except:
                form_room = None

        # casts to an integer, 0 or 1
        on_campus = strtobool(form.data.get('on_campus', 'True'))

        # no room if you move off campus
        if not on_campus:
265
266
            form_room = None

267
        # note this is after the 'on campus' check
268
269
        if current_room != form_room:
            me.times_changed_room += 1
270
            Confirmation.objects.filter(student=me).delete()
271

272
        me.on_campus = on_campus
273
274
        me.room = form_room

275
276
277
278
279
280
281
        # if you don't live on campus you can't limit yourself to a nonexistent
        # floor or room
        if not(me.on_campus):
            me.privacy = 'students'
        else:
            me.privacy = form.data['privacy']

282
        try:
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
            # in case someone disabled the js, limit processing to only the first
            # two majors passed by the user
            # we also eliminate the potential a student manipulates the form to
            # pass in two majors of the same type by casting to a set
            form_major_pks = set(form.data.getlist('major')[:2])
            # retrieve the major objects from the list of pk strings
            form_majors = [Major.objects.get(pk=pk) for pk in form_major_pks]
            # print(form_majors)
            # iterate over a student's current majors
            for current_major in me.major.all():
                # remove m2m relationship if not in majors from form
                if current_major not in form_majors:
                    me.major.remove(current_major)
            # iterate over the majors in the form
            for form_major in form_majors:
                # add new m2m relationship to student
                if form_major not in me.major.all():
                    me.major.add(form_major)
301
        except:
302
303
            # don't change majors
            pass
304

305
306
307
308
309
        # replicate the same thing for the other m2m field
        try:
            form_blocked_pks = set(form.data.getlist('blocked_kids'))
            current_blocked = me.blocked_kids.all()
            # most people will not being blocking other students
310
            if form_blocked_pks or current_blocked:
311
312
313
314
315
316
317
318
319
320
                form_blocked = [Student.objects.get(pk=pk) for pk in form_blocked_pks]
                for current_block in current_blocked:
                    if current_block not in form_blocked:
                        me.blocked_kids.remove(current_block)
                for form_block in form_blocked:
                    if form_block not in current_blocked:
                        me.blocked_kids.add(form_block)
        except:
            pass

321
322
        me.user.first_name = no_nums(form.data['first_name'])
        me.user.last_name = no_nums(form.data['last_name'])
323
        me.gender = form.data.getlist('gender')
324
        me.show_gender = strtobool(form.data.get('show_gender', 'False'))
325
        me.graduating_year = form.data['graduating_year']
326
327
328
329
330
331
        me.user.save()
        me.save()

        return super(UpdateStudent, self).form_valid(form)

    def get_success_url(self):
332
333
334
335
336

        if self.request.user.student.recent_changes() == 2:

            messages.add_message(self.request, messages.WARNING, 'To safeguard everyone\'s privacy, you have just one remaining room change for the semester before you\'ll need to send us an email at roomlist@lists.srct.gmu.edu.')

337
        return reverse('detail_student',
Daniel W Bond's avatar
pep8 me    
Daniel W Bond committed
338
                       kwargs={'slug': self.request.user.username})
339

340

341
342
343
344
class DeleteStudent(FormView):
    form_class = FarewellFeedbackForm
    template_name = 'delete_student.html'

345
346
347
348
349
350
351
352
353
354
355
    def get(self, request, *args, **kwargs):

        current_url = self.request.get_full_path()
        url_uname = current_url.split('/')[3]

        if not(url_uname == self.request.user.username):
            return HttpResponseRedirect(reverse('delete_student',
                                                kwargs={'slug': self.request.user.username}))
        else:
            return super(DeleteStudent, self).get(request, *args, **kwargs)

356
357
358
359
360
361
362
363
364
365
366
367
368
    def get_context_data(self, **kwargs):
        context = super(DeleteStudent, self).get_context_data(**kwargs)

        me = Student.objects.get(user=self.request.user)

        context['student'] = me

        return context

    def form_valid(self, form):
        user = self.request.user
        student = self.request.user.student

369
370
371
372
373
374
375
376
377
378
379
380
        # we're using this api because opening smtp connections is taxing in
        # that it takes time-- we want to send both emails at once without
        # having to log in and out and back in and out again
        connection = get_connection()

        # send email to the student
        text_path = 'email/farewell.txt'
        html_path = 'email/farewell.html'

        if form.cleaned_data['leaving']:
            context = {
                'student_name': student.get_first_name_or_uname,
381
                'special_message': "We're glad you gave our service a try."
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
            }
        else:
            context = {
                'student_name': student.get_first_name_or_uname,
                'special_message': "We wish you luck in your time after Mason!"
            }

        subject = "You successfully deleted your account on Roomlist"
        to = user.email

        student_email = create_email(text_path, html_path, subject, to, context)

        # send feedback to the admins if there is feedback to send
        if form.cleaned_data['feedback']:
            text_path = 'email/feedback.txt'
            html_path = 'email/feedback.html'

            date_text = student.created.strftime('%A, %B %d, %Y')

            if form.cleaned_data['leaving']:
                leaving = ""
            else:
                leaving = "not"

            context = {
                'student_name':  student.get_first_name_or_uname,
                'signup_date': date_text,
                'leaving': leaving,
                'feedback': form.cleaned_data['feedback']
            }

            subject = "Feedback from Roomlist account deletion"
            to = 'roomlist@lists.srct.gmu.edu'

            feedback_email = create_email(text_path, html_path, subject, to, context)

            connection.send_messages([student_email, feedback_email])
        else:
            connection.send_messages([student_email])

        # yes, we do have to manually close the connection
        connection.close()

        # delete both the student object and the student object
        confirmations = Confirmation.objects.filter(confirmer=student)
        if confirmations:
            for confirmation in confirmations:
                confirmation.delete()
430
431
432
433
434
435
436
437
        student.delete()
        user.delete()

        return super(DeleteStudent, self).form_valid(form)

    def get_success_url(self):
        return reverse('homepage')

438
# majors pages
439
class ListMajors(ListView):
Daniel W Bond's avatar
Daniel W Bond committed
440
441
442
443
444
    model = Major
    queryset = Major.objects.all().order_by('name')
    context_object_name = 'majors'
    template_name = 'list_majors.html'

445
446
447
448
449
450
451
452
453
454

class DetailMajor(LoginRequiredMixin, DetailView):
    model = Major
    context_object_name = 'major'
    template_name = 'detail_major.html'

    login_url = 'login'

    def get_context_data(self, **kwargs):
        context = super(DetailMajor, self).get_context_data(**kwargs)
455
        me = Student.objects.get(user=self.request.user)
456

457
        # all students in the major
458
459
460
        major_students = Student.objects.filter(major__in=[self.get_object()]).order_by('-graduating_year')

        context['major_students'] = shadowbanning(me, major_students)
461
462

        return context
463
464
465


class CreateConfirmation(LoginRequiredMixin, CreateView):
466
467
468
    """Students on the same floor may flag one another.

    This is our attempt at crowdsourced verification."""
469
470
471
472
473
474
475
476
477
    model = Confirmation
    fields = []
    template_name = 'create_confirmation.html'

    login_url = 'login'

    def get(self, request, *args, **kwargs):

        current_url = self.request.get_full_path()
478
479
480
        # [u'', u'accounts', u'student', u'gmason', u'flag', u'confirmer']
        confirmer_uname = current_url.split('/')[3]
        student_uname = current_url.split('/')[5]
481

482
483
        confirmer = Student.objects.get(user__username=confirmer_uname)
        student = Student.objects.get(user__username=student_uname)
484
485
486
487
488
489

        flags = Confirmation.objects.filter(confirmer=confirmer,
                                            student=student).count()

        # you can't flag yourself
        if confirmer == student:
490
            raise Http404
491
492
493
494
495
496
497
498
499

        # check that the confirmer is on the floor of the student
        if not on_the_same_floor(student, confirmer):
            return HttpResponseForbidden()

        # check if the confirmer has already flagged the student
        if flags >= 1:
            return HttpResponseForbidden()

500
501
502
503
        # you can't see the page if the person has banned you
        if confirmer in student.blocked_kids.all():
            raise Http404

504
505
506
507
508
509
510
        return super(CreateConfirmation, self).get(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        context = super(CreateConfirmation, self).get_context_data(**kwargs)

        # duplicated code
        current_url = self.request.get_full_path()
511
        url_uname = current_url.split('/')[5]
512
513
514
515
516
517
518

        student = Student.objects.get(slug=url_uname)

        context['student'] = student

        return context

519
520
521
522
523
    @ratelimit(key='user', rate='10/m', method='POST', block=True)
    @ratelimit(key='user', rate='50/d', method='POST', block=True)
    def post(self, request, *args, **kwargs):
        return super(CreateConfirmation, self).post(request, *args, **kwargs)

524
525
526
527
    def form_valid(self, form):

        # duplicated code
        current_url = self.request.get_full_path()
528
        url_uname = current_url.split('/')[5]
529
530
531
532
533
534
535
536
537
538
539
540

        confirmer = Student.objects.get(user=self.request.user)
        student = Student.objects.get(slug=url_uname)

        form.instance.confirmer = confirmer
        form.instance.student = student

        return super(CreateConfirmation, self).form_valid(form)

    def get_success_url(self):
        # redirect to the flagged student page when saving
        return reverse('detail_student',
Daniel W Bond's avatar
pep8 me    
Daniel W Bond committed
541
                       kwargs={'slug': self.object.student.slug})
542
543
544
545


class DeleteConfirmation(LoginRequiredMixin, DeleteView):
    model = Confirmation
Daniel W Bond's avatar
Daniel W Bond committed
546
    template_name = 'delete_confirmation.html'
547
548
549

    login_url = 'login'

Daniel W Bond's avatar
Daniel W Bond committed
550
    def get(self, request, *args, **kwargs):
551
552
        requester = self.request.user.student

553
554
555
        current_url = self.request.get_full_path()
        confirmer_uname = current_url.split('/')[3]
        confirmer = Student.objects.get(user__username=confirmer_uname)
556

557
        # only the person who created the confirmation may delete it
Daniel W Bond's avatar
Daniel W Bond committed
558
559
        if not(requester == confirmer):
            return HttpResponseForbidden()
560
        # however, if the confirmation just flat out doesn't exist...
Daniel W Bond's avatar
Daniel W Bond committed
561
        else:
562
563
564
565
566
567
            try:
                confirmer = self.get_object().confirmer
            except ObjectDoesNotExist:
                raise Http404
            else:
                return super(DeleteConfirmation, self).get(request, *args, **kwargs)
568

569
570
571
572
573
574
575
576
577
578
579
    def get_object(self):
        current_url = self.request.get_full_path()
        # [u'', u'accounts', u'student', u'gmason', u'flag', u'confirmer', delete]
        confirmer_uname = current_url.split('/')[3]
        student_uname = current_url.split('/')[5]

        confirmer = Student.objects.get(user__username=confirmer_uname)
        student = Student.objects.get(user__username=student_uname)
        confirmation = Confirmation.objects.get(confirmer=confirmer, student=student)
        return confirmation

580
581
    def get_success_url(self):
        return reverse('detail_student',
Daniel W Bond's avatar
pep8 me    
Daniel W Bond committed
582
                       kwargs={'slug': self.object.student.slug})