views.py 19.7 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
# core django imports
8
from django.http import HttpResponseForbidden, HttpResponseRedirect, Http404
Daniel W Bond's avatar
pep8 me  
Daniel W Bond committed
9
from django.views.generic import CreateView, ListView, DetailView, FormView, DeleteView
10
from django.core.urlresolvers import reverse
11 12
from django.contrib import messages
from django.utils.safestring import mark_safe
13
from django.forms.widgets import HiddenInput
14 15 16 17
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
18
# third party imports
19
from braces.views import LoginRequiredMixin, FormValidMessageMixin
20
from cas.views import login as cas_login
21
from ratelimit.decorators import ratelimit
22
# imports from your apps
Daniel W Bond's avatar
Daniel W Bond committed
23
from .models import Student, Major, Confirmation
24
from .forms import StudentUpdateForm, FarewellFeedbackForm
25
from .student_messages import return_messages
26
from housing.views import shadowbanning
27

28 29

def custom_cas_login(request, *args, **kwargs):
30
    """If a student has not completed the welcome walkthrough, go there on login."""
31 32
    response = cas_login(request, *args, **kwargs)
    # returns HttpResponseRedirect
33

34 35
    if request.user.is_authenticated():

36 37 38
        if not request.user.student.totally_done():

            if not request.user.student.completedName:
39
                return HttpResponseRedirect(reverse('welcomeName'))
40
            elif not request.user.student.completedPrivacy:
41
                return HttpResponseRedirect(reverse('welcomePrivacy'))
42
            elif not request.user.student.completedMajor:
43
                return HttpResponseRedirect(reverse('welcomeMajor'))
44
            elif not request.user.completedSocial:
45
                return HttpResponseRedirect(reverse('welcomeSocial'))
46 47 48
        else:
            welcome_back = random.choice(return_messages)
            messages.add_message(request, messages.INFO, mark_safe(welcome_back))
49 50 51 52

    return response


53
# only two students on the same floor can confirm one another (crowdsourced verification)
54 55
def on_the_same_floor(student, confirmer):
    if student == confirmer:
56
        # Student is confirmer
57 58 59 60 61
        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):
62
        # one Student is None
63 64
        return False
    elif not(student_floor == confirmer_floor):
65
        # not the same floor
66 67 68 69 70
        return False
    else:
        return True


71 72 73 74 75 76
def pk_or_none(me, obj):
    if obj is None:
        return None
    else:
        return obj.pk

77

78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94
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

95 96 97
# details about the student
class DetailStudent(LoginRequiredMixin, DetailView):
    model = Student
98 99 100 101
    context_object_name = 'student'
    template_name = 'detailStudent.html'

    login_url = 'login'
Daniel W Bond's avatar
Daniel W Bond committed
102

103 104 105 106
    def get(self, request, *args, **kwargs):

        current_url = self.request.get_full_path()
        url_uname = current_url.split('/')[3]
107
        detailed_student = Student.objects.get(user__username=url_uname)
108 109 110 111 112 113

        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
114 115 116
    def get_context_data(self, **kwargs):
        context = super(DetailStudent, self).get_context_data(**kwargs)

117
        requesting_student = Student.objects.get(user=self.request.user)
Daniel W Bond's avatar
Daniel W Bond committed
118

119 120 121 122 123
        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
124 125 126 127 128
        if flags:
            try:
                my_flag = Confirmation.objects.get(confirmer=requesting_student,
                                                   student=self.get_object())
            except Exception as e:
129 130
                print("Students are not supposed to be able to make more than one flag per student.")
                print(e)
131

Daniel W Bond's avatar
pep8 me  
Daniel W Bond committed
132
        # recognizably too complex
Daniel W Bond's avatar
Daniel W Bond committed
133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149
        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
150 151
            # 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
152 153 154 155 156 157
            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
158

Daniel W Bond's avatar
Daniel W Bond committed
159
        context['shares'] = shares()
160 161
        context['same_floor'] = same_floor
        context['has_flagged'] = bool(flags)
Daniel W Bond's avatar
Daniel W Bond committed
162 163
        if flags:
            context['my_flag'] = my_flag
Daniel W Bond's avatar
Daniel W Bond committed
164 165
        return context

Daniel W Bond's avatar
Daniel W Bond committed
166

167
# update a student, but FormView to allow name update on same page
168
class UpdateStudent(LoginRequiredMixin, FormValidMessageMixin, FormView):
169
    template_name = 'update_student.html'
170
    form_class = StudentUpdateForm
171 172
    login_url = 'login'

173 174
    form_valid_message = "Your profile was successfully updated!"

175 176 177 178 179 180
    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):
181 182
            return HttpResponseRedirect(reverse('update_student',
                                                kwargs={'slug': self.request.user.username}))
183 184 185
        else:
            return super(UpdateStudent, self).get(request, *args, **kwargs)

186 187 188 189
    def get_context_data(self, **kwargs):
        context = super(UpdateStudent, self).get_context_data(**kwargs)

        me = Student.objects.get(user=self.request.user)
190
        majors = [pk_or_none(me, major) for major in me.major.all()]
191 192

        form = StudentUpdateForm(initial={'first_name': me.user.first_name,
193 194
                                          'last_name': me.user.last_name,
                                          'gender': me.gender,
195
                                          'show_gender': me.show_gender,
196 197
                                          'room': pk_or_none(me, me.room),
                                          'privacy': me.privacy,
198
                                          'blocked_kids': me.blocked_kids.all(),
199
                                          'major': majors,
200 201
                                          'graduating_year': me.graduating_year,
                                          'on_campus': me.on_campus, })
202

203 204
        form.fields['blocked_kids'].queryset = Student.objects.exclude(user=self.request.user)

205
        if me.recent_changes() > 2:
206
            form.fields['room'].widget = HiddenInput()
207 208
            form.fields['privacy'].widget = HiddenInput()
            form.fields['on_campus'].widget = HiddenInput()
209 210
        else:
            form.fields['room'].widget.user = self.request.user
211

212 213 214 215 216
        # 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'

217 218
        # chosen
        form.fields['major'].widget.attrs['class'] = 'chosen-select'
219
        form.fields['blocked_kids'].widget.attrs['class'] = 'blocked-select'
220

221
        context['my_form'] = form
Daniel W Bond's avatar
Daniel W Bond committed
222

223 224
        return context

Daniel W Bond's avatar
Daniel W Bond committed
225 226 227
    @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
228
        # for key, value in request.POST.iteritems():
229
        #     print(key, value)
Daniel W Bond's avatar
Daniel W Bond committed
230 231
        return super(UpdateStudent, self).post(request, *args, **kwargs)

232 233 234
    def form_valid(self, form):
        me = Student.objects.get(user=self.request.user)

Daniel W Bond's avatar
pep8 me  
Daniel W Bond committed
235
        # print("In form valid method!")
Daniel W Bond's avatar
Daniel W Bond committed
236

Daniel W Bond's avatar
pep8 me  
Daniel W Bond committed
237
        # for key, value in form.data.iteritems():
238
        #     print(key, value)
Daniel W Bond's avatar
Daniel W Bond committed
239

240
        current_room = me.room
241 242 243 244 245 246 247 248 249 250 251 252 253 254 255

        # 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:
256 257
            form_room = None

258
        # note this is after the 'on campus' check
259 260
        if current_room != form_room:
            me.times_changed_room += 1
261
            Confirmation.objects.filter(student=me).delete()
262

263
        me.on_campus = on_campus
264 265 266
        me.room = form_room

        try:
267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284
            # 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)
285
        except:
286 287
            # don't change majors
            pass
288

289 290 291 292 293
        # 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
294
            if form_blocked_pks or current_blocked:
295 296 297 298 299 300 301 302 303 304
                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

305 306 307
        me.user.first_name = form.data['first_name']
        me.user.last_name = form.data['last_name']
        me.gender = form.data.getlist('gender')
308
        me.show_gender = strtobool(form.data.get('show_gender', 'False'))
309
        me.privacy = form.data['privacy']
310
        me.graduating_year = form.data['graduating_year']
311 312 313 314 315 316
        me.user.save()
        me.save()

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

    def get_success_url(self):
317 318 319 320 321

        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.')

322
        return reverse('detail_student',
Daniel W Bond's avatar
pep8 me  
Daniel W Bond committed
323
                       kwargs={'slug': self.request.user.username})
324

325

326 327 328 329
class DeleteStudent(FormView):
    form_class = FarewellFeedbackForm
    template_name = 'delete_student.html'

330 331 332 333 334 335 336 337 338 339 340
    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)

341 342 343 344 345 346 347 348 349 350 351 352 353
    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

354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414
        # 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()
415 416 417 418 419 420 421 422
        student.delete()
        user.delete()

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

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

423
# majors pages
424
class ListMajors(ListView):
Daniel W Bond's avatar
Daniel W Bond committed
425 426 427 428 429
    model = Major
    queryset = Major.objects.all().order_by('name')
    context_object_name = 'majors'
    template_name = 'list_majors.html'

430 431 432 433 434 435 436 437 438 439

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)
440
        me = Student.objects.get(user=self.request.user)
441

442
        # all students in the major
443 444 445
        major_students = Student.objects.filter(major__in=[self.get_object()]).order_by('-graduating_year')

        context['major_students'] = shadowbanning(me, major_students)
446 447

        return context
448 449 450


class CreateConfirmation(LoginRequiredMixin, CreateView):
451 452 453
    """Students on the same floor may flag one another.

    This is our attempt at crowdsourced verification."""
454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483
    model = Confirmation
    fields = []
    template_name = 'create_confirmation.html'

    login_url = 'login'

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

        current_url = self.request.get_full_path()
        # [u'', u'accounts', u'student', u'gmason', u'flag', u'']
        url_uname = current_url.split('/')[3]

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

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

        # you can't flag yourself
        if confirmer == student:
            return HttpResponseForbidden()

        # 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()

484 485 486 487
        # you can't see the page if the person has banned you
        if confirmer in student.blocked_kids.all():
            raise Http404

488 489 490 491 492 493 494 495 496 497 498 499 500 501 502
        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()
        url_uname = current_url.split('/')[3]

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

        context['student'] = student

        return context

503 504 505 506 507
    @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)

508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524
    def form_valid(self, form):

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

        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
525
                       kwargs={'slug': self.object.student.slug})
526 527 528 529


class DeleteConfirmation(LoginRequiredMixin, DeleteView):
    model = Confirmation
Daniel W Bond's avatar
Daniel W Bond committed
530
    template_name = 'delete_confirmation.html'
531 532 533

    login_url = 'login'

Daniel W Bond's avatar
Daniel W Bond committed
534 535 536
    def get(self, request, *args, **kwargs):
        requester = Student.objects.get(user=self.request.user)
        confirmer = self.get_object().confirmer
537

Daniel W Bond's avatar
Daniel W Bond committed
538 539 540 541
        if not(requester == confirmer):
            return HttpResponseForbidden()
        else:
            return super(DeleteConfirmation, self).get(request, *args, **kwargs)
542 543 544

    def get_success_url(self):
        return reverse('detail_student',
Daniel W Bond's avatar
pep8 me  
Daniel W Bond committed
545
                       kwargs={'slug': self.object.student.slug})