views.py 20.5 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.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
273 274 275
        me.room = form_room

        try:
276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293
            # 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)
294
        except:
295 296
            # don't change majors
            pass
297

298 299 300 301 302
        # 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
303
            if form_blocked_pks or current_blocked:
304 305 306 307 308 309 310 311 312 313
                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

314 315
        me.user.first_name = no_nums(form.data['first_name'])
        me.user.last_name = no_nums(form.data['last_name'])
316
        me.gender = form.data.getlist('gender')
317
        me.show_gender = strtobool(form.data.get('show_gender', 'False'))
318
        me.privacy = form.data['privacy']
319
        me.graduating_year = form.data['graduating_year']
320 321 322 323 324 325
        me.user.save()
        me.save()

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

    def get_success_url(self):
326 327 328 329 330

        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.')

331
        return reverse('detail_student',
Daniel W Bond's avatar
pep8 me  
Daniel W Bond committed
332
                       kwargs={'slug': self.request.user.username})
333

334

335 336 337 338
class DeleteStudent(FormView):
    form_class = FarewellFeedbackForm
    template_name = 'delete_student.html'

339 340 341 342 343 344 345 346 347 348 349
    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)

350 351 352 353 354 355 356 357 358 359 360 361 362
    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

363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423
        # 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,
                'special_message': "We're glad you gave our message a try."
            }
        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()
424 425 426 427 428 429 430 431
        student.delete()
        user.delete()

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

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

432
# majors pages
433
class ListMajors(ListView):
Daniel W Bond's avatar
Daniel W Bond committed
434 435 436 437 438
    model = Major
    queryset = Major.objects.all().order_by('name')
    context_object_name = 'majors'
    template_name = 'list_majors.html'

439 440 441 442 443 444 445 446 447 448

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)
449
        me = Student.objects.get(user=self.request.user)
450

451
        # all students in the major
452 453 454
        major_students = Student.objects.filter(major__in=[self.get_object()]).order_by('-graduating_year')

        context['major_students'] = shadowbanning(me, major_students)
455 456

        return context
457 458 459


class CreateConfirmation(LoginRequiredMixin, CreateView):
460 461 462
    """Students on the same floor may flag one another.

    This is our attempt at crowdsourced verification."""
463 464 465 466 467 468 469 470 471
    model = Confirmation
    fields = []
    template_name = 'create_confirmation.html'

    login_url = 'login'

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

        current_url = self.request.get_full_path()
472 473 474
        # [u'', u'accounts', u'student', u'gmason', u'flag', u'confirmer']
        confirmer_uname = current_url.split('/')[3]
        student_uname = current_url.split('/')[5]
475

476 477
        confirmer = Student.objects.get(user__username=confirmer_uname)
        student = Student.objects.get(user__username=student_uname)
478 479 480 481 482 483

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

        # you can't flag yourself
        if confirmer == student:
484
            raise Http404
485 486 487 488 489 490 491 492 493

        # 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()

494 495 496 497
        # you can't see the page if the person has banned you
        if confirmer in student.blocked_kids.all():
            raise Http404

498 499 500 501 502 503 504
        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()
505
        url_uname = current_url.split('/')[5]
506 507 508 509 510 511 512

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

        context['student'] = student

        return context

513 514 515 516 517
    @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)

518 519 520 521
    def form_valid(self, form):

        # duplicated code
        current_url = self.request.get_full_path()
522
        url_uname = current_url.split('/')[5]
523 524 525 526 527 528 529 530 531 532 533 534

        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
535
                       kwargs={'slug': self.object.student.slug})
536 537 538 539


class DeleteConfirmation(LoginRequiredMixin, DeleteView):
    model = Confirmation
Daniel W Bond's avatar
Daniel W Bond committed
540
    template_name = 'delete_confirmation.html'
541 542 543

    login_url = 'login'

Daniel W Bond's avatar
Daniel W Bond committed
544
    def get(self, request, *args, **kwargs):
545 546 547 548 549 550
        requester = self.request.user.student

        try:
            confirmer = self.get_object().confirmer
        except ObjectDoesNotExist:
            raise Http404
551

Daniel W Bond's avatar
Daniel W Bond committed
552 553 554 555
        if not(requester == confirmer):
            return HttpResponseForbidden()
        else:
            return super(DeleteConfirmation, self).get(request, *args, **kwargs)
556

557 558 559 560 561 562 563 564 565 566 567
    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

568 569
    def get_success_url(self):
        return reverse('detail_student',
Daniel W Bond's avatar
pep8 me  
Daniel W Bond committed
570
                       kwargs={'slug': self.object.student.slug})