def feedback(request):
"""
Send feedback to the authors of the system.
GET parameters:
html
turn on the HTML version of the API
POST parameters (JSON):
text:
the main feedback content
email (optional):
user's e-mail
username (optional):
user's name
"""
if request.method == 'GET':
return render(request, 'feedback_feedback.html', {}, help_text=feedback.__doc__)
if request.method == 'POST':
feedback_data = json_body(request.body.decode("utf-8"))
feedback_data['user_agent'] = Session.objects.get_current_session().http_user_agent.content
if not feedback_data.get('username'):
feedback_data['username'] = request.user.username
if not feedback_data.get('email'):
feedback_data['email'] = request.user.email
comment = Comment.objects.create(
username=feedback_data['username'],
email=feedback_data['email'],
text=feedback_data['text'])
if get_config('proso_feedback', 'send_emails', default=True):
feedback_domain = get_config('proso_feedback', 'domain', required=True)
feedback_to = get_config('proso_feedback', 'to', required=True)
if is_likely_worthless(feedback_data):
mail_from = 'spam@' + feedback_domain
else:
mail_from = 'feedback@' + feedback_domain
text_content = render_to_string("emails/feedback.plain.txt", {
"feedback": feedback_data,
"user": request.user,
})
html_content = render_to_string("emails/feedback.html", {
"feedback": feedback_data,
"user": request.user,
})
subject = feedback_domain + ' feedback ' + str(comment.id)
mail = EmailMultiAlternatives(
subject,
text_content,
mail_from,
feedback_to,
)
mail.attach_alternative(html_content, "text/html")
mail.send()
LOGGER.debug("email sent %s\n", text_content)
return HttpResponse('ok', status=201)
else:
return HttpResponseBadRequest("method %s is not allowed".format(request.method))
def has_answer_more_items(self, items, user=None):
cached_all = {}
answer_cache = cache.get('database_environment__has_answer', {})
for item in items:
cache_key = '{}_{}'.format(item, user)
found = answer_cache.get(cache_key)
if found:
cached_all[item] = True
to_find = [i for i in items if i not in set(cached_all.keys())]
if len(cached_all) != 0:
LOGGER.debug('cache hit for having answers, items {} and user {}'.format(len(cached_all), user))
if len(to_find) != 0:
LOGGER.debug('cache miss for having answers, items {} and user {}'.format(len(to_find), user))
with closing(connection.cursor()) as cursor:
where, where_params = self._where({'user_id': user, 'item_id': to_find}, False, for_answers=True)
cursor.execute(
'SELECT item_id, 1 FROM proso_models_answer WHERE '
+ where + ' GROUP BY item_id',
where_params)
for i, _ in cursor:
cached_all[i] = True
cache_expiration = get_config('proso_models', 'having_answers.cache_expiration', default=30 * 24 * 60 * 60)
# trying to decrease probability of race condition
answer_cache = cache.get('database_environment__has_answer', {})
for item in cached_all.keys():
cache_key = '{}_{}'.format(item, user)
answer_cache[cache_key] = True
cache.set('database_environment__has_answer', answer_cache, cache_expiration)
return {i: cached_all.get(i, False) for i in items}
def create_class_code(sender, instance, created=False, **kwargs):
if not instance.code:
condition = True
while condition:
code = random_string(
get_config('proso_user', 'generated_code_length', default=5))
condition = Class.objects.filter(code=code).exists()
instance.code = code
def login_student(request):
"""
Log in student
POST parameters (JSON):
student:
profile id of the student
"""
if not get_config('proso_user', 'allow_login_students', default=False):
return render_json(request, {
'error': _('Log in as student is not allowed.'),
'error_type': 'login_student_not_allowed'
},
template='class_create_student.html',
help_text=login_student.__doc__,
status=403)
if request.method == 'GET':
return render(request,
'class_login_student.html', {},
help_text=login_student.__doc__)
elif request.method == 'POST':
if not request.user.is_authenticated() or not hasattr(
request.user, "userprofile"):
return render_json(request, {
'error': _('User is not logged in.'),
'error_type': 'user_unauthorized'
},
template='class_create_student.html',
status=401)
data = json_body(request.body.decode("utf-8"))
try:
student = User.objects.get(
userprofile=data.get('student'),
userprofile__classes__owner=request.user.userprofile)
except User.DoesNotExist:
return render_json(request, {
'error': _('Student not found'),
'error_type': 'student_not_found'
},
template='class_login_student.html',
status=401)
if not student.is_active:
return render_json(
request, {
'error': _('The account has not been activated.'),
'error_type': 'account_not_activated'
},
template='class_login_student.html',
status=401)
student.backend = 'django.contrib.auth.backends.ModelBackend'
login(request, student)
request.method = "GET"
return profile(request)
else:
return HttpResponseBadRequest("method %s is not allowed".format(
request.method))
def get_forbidden_categories(user):
result = []
for sub_type, categories in get_config('proso_subscription', 'premium_categories', default={}).items():
if Subscription.objects.is_active(user, sub_type):
continue
for category in categories:
if random.random() < (1 - category.get('random_access', 0)):
result.append(category['id'])
return result
def options(request, json_list, nested):
environment = get_environment()
user_id = get_user_id(request)
time = get_time(request)
if is_time_overridden(request):
environment.shift_time(time)
item_selector = get_item_selector()
option_selector = get_option_selector(item_selector)
option_sets = get_option_set().get_option_for_flashcards([
(question['payload'], question['question_type'])
for question in json_list
if question['payload']['object_type'] == 'fc_flashcard'
])
metas = [question.get('meta', {}) for question in json_list]
test_position = _test_index(metas)
selected_items = [question['payload']['item_id'] for question in json_list
if question['payload']['object_type'] == 'fc_flashcard']
allow_zero_option = {}
for question in json_list:
if question['payload']['object_type'] != 'fc_flashcard':
continue
if len(option_sets[question['payload']['item_id']]) == 0 and 'term_secondary' not in question['payload']:
# If we do not have enough options, we have to force direction
question['question_type'] = FlashcardAnswer.FROM_TERM
disable_open_questions = False
if question['payload']['disable_open_questions']:
disable_open_questions = True
elif question['payload']['restrict_open_questions']:
disable_open_questions = question['question_type'] in {FlashcardAnswer.FROM_DESCRIPTION, FlashcardAnswer.FROM_TERM_TO_TERM_SECONDARY}
allow_zero_option[question['payload']['item_id']] = question['question_type'] in {FlashcardAnswer.FROM_TERM, FlashcardAnswer.FROM_TERM_SECONDARY_TO_TERM} and not disable_open_questions
all_options = {i: options for i, options in zip(selected_items, option_selector.select_options_more_items(
environment, user_id, selected_items, time, option_sets,
allow_zero_options=allow_zero_option
))}
options_json_list = []
# HACK: Here, we have to take into account reference questions with zero
# options. In case of zero options we have to force a question type if the
# restriction for zero options is enabled.
config_zero_options_restriction = get_config('proso_models', 'options_count.parameters.allow_zero_options_restriction', default=False)
for i, question in enumerate(json_list):
if question['payload']['object_type'] != 'fc_flashcard':
continue
if test_position is not None and test_position == i:
if 'term_secondary' not in question['payload'] and config_zero_options_restriction:
question['question_type'] = FlashcardAnswer.FROM_TERM
question['payload']['options'] = []
continue
options = all_options[question['payload']['item_id']]
question['payload']['options'] = [Item.objects.item_id_to_json(o) for o in options]
options_json_list += question['payload']['options']
item2object(request, options_json_list, nested=True)
for question in json_list:
if question['payload']['object_type'] != 'fc_flashcard':
continue
sort_key = 'term_secondary' if question['question_type'] == FlashcardAnswer.FROM_TERM_TO_TERM_SECONDARY else 'term'
question['payload']['options'] = sorted(question['payload']['options'], key=lambda o: o[sort_key]['name'])
def confusing_factor_more_items(self, item, items, user=None):
cached_all = {}
confusing_factor_cache = cache.get('database_environment__confusing_factor', {})
for item_secondary in items:
_items = self._sorted([item, item_secondary])
cache_key = '{}_{}_{}'.format(_items[0], _items[1], user)
cached_item = confusing_factor_cache.get(cache_key)
if cached_item:
cached_all[item_secondary] = int(cached_item)
to_find = [i for i in items if i not in list(cached_all.keys())]
if len(cached_all) != 0:
LOGGER.debug('cache hit for confusing factor, item {}, {} other items and user {}'.format(item, len(cached_all), user))
if len(to_find) != 0:
LOGGER.debug('cache miss for confusing factor, item {}, {} other items and user {}'.format(item, len(to_find), user))
where, where_params = self._where({
'item_answered_id': to_find,
'item_asked_id': to_find,
}, force_null=False, for_answers=True, conjuction=False)
user_where, user_params = self._column_comparison('user_id', user, force_null=False)
with closing(connection.cursor()) as cursor:
cursor.execute(
'''
SELECT
item_asked_id,
item_answered_id,
COUNT(id) AS confusing_factor
FROM
proso_models_answer
WHERE guess = 0 AND (item_asked_id = %s OR item_asked_id = %s) AND
''' + user_where + ' AND (' + where + ') GROUP BY item_asked_id, item_answered_id', [item, item] + user_params + where_params)
found = {}
for item_asked, item_answered, count in cursor:
if item_asked == item:
found[item_answered] = found.get(item_answered, 0) + count
else:
found[item_asked] = found.get(item_asked, 0) + count
for i in to_find:
found[i] = found.get(i, 0)
cache_expiration = get_config('proso_models', 'confusing_factor.cache_expiration', default=24 * 60 * 60)
# trying to decrease probability of race condition
confusing_factor_cache = cache.get('database_environment__confusing_factor', {})
for item_secondary, count in found.items():
_items = self._sorted([item, item_secondary])
cache_key = '{}_{}_{}'.format(_items[0], _items[1], user)
confusing_factor_cache[cache_key] = count
cached_all[item_secondary] = count
cache.set('database_environment__confusing_factor', confusing_factor_cache, cache_expiration)
return [cached_all[i] for i in items]
def login_student(request):
"""
Log in student
POST parameters (JSON):
student:
profile id of the student
"""
if not get_config('proso_user', 'allow_login_students', default=False):
return render_json(request, {
'error': _('Log in as student is not allowed.'),
'error_type': 'login_student_not_allowed'
}, template='class_create_student.html', help_text=login_student.__doc__, status=403)
if request.method == 'GET':
return render(request, 'class_login_student.html', {}, help_text=login_student.__doc__)
elif request.method == 'POST':
if not request.user.is_authenticated() or not hasattr(request.user, "userprofile"):
return render_json(request, {
'error': _('User is not logged in.'),
'error_type': 'user_unauthorized'
}, template='class_create_student.html', status=401)
data = json_body(request.body.decode("utf-8"))
try:
student = User.objects.get(userprofile=data.get('student'),
userprofile__classes__owner=request.user.userprofile)
except User.DoesNotExist:
return render_json(request, {
'error': _('Student not found'),
'error_type': 'student_not_found'
}, template='class_login_student.html', status=401)
if not student.is_active:
return render_json(request, {
'error': _('The account has not been activated.'),
'error_type': 'account_not_activated'
}, template='class_login_student.html', status=401)
student.backend = 'django.contrib.auth.backends.ModelBackend'
login(request, student)
request.method = "GET"
return profile(request)
else:
return HttpResponseBadRequest("method %s is not allowed".format(request.method))
def confusing_factor_more_items(self, item, items, user=None):
cached_all = {}
confusing_factor_cache = cache.get('database_environment__confusing_factor', {})
for item_secondary in items:
cache_key = '{}_{}_{}'.format(item, item_secondary, user)
cached_item = confusing_factor_cache.get(cache_key)
if cached_item:
cached_all[item_secondary] = int(cached_item)
to_find = [i for i in items if i not in list(cached_all.keys())]
if len(cached_all) != 0:
LOGGER.debug('cache hit for confusing factor, item {}, {} other items and user {}'.format(item, len(cached_all), user))
if len(to_find) != 0:
LOGGER.debug('cache miss for confusing factor, item {}, {} other items and user {}'.format(item, len(to_find), user))
user_where, user_params = self._column_comparison('user_id', user, force_null=False)
with closing(connection.cursor()) as cursor:
cursor.execute(
'''
SELECT DISTINCT main.item_id, c.identifier
FROM proso_flashcards_flashcard AS main
INNER JOIN proso_flashcards_flashcard AS fc
ON (
main.term_id = fc.term_id OR
main.term_secondary_id = fc.term_id
)
INNER JOIN proso_flashcards_context AS c
ON c.id = fc.context_id
WHERE
fc.term_secondary_id IS NULL AND
fc.active AND
main.item_id IN (''' + ','.join('%s' for _ in [item] + to_find) + ')',
[item] + to_find
)
context_mapping = defaultdict(set)
for i, c in cursor:
context_mapping[i].add(c)
with closing(connection.cursor()) as cursor:
cursor.execute(
'''
SELECT
main.item_answered_id,
COUNT(main.id)::float / (open.count + closed.count) as confusing_factor
FROM
proso_models_answer as main
INNER JOIN (
SELECT item_asked_id as item, COUNT(*) as count
FROM proso_models_answer
WHERE item_asked_id = %s AND guess = 0 AND ''' + user_where + '''
GROUP BY 1
) AS open ON open.item = main.item_asked_id
INNER JOIN (
SELECT proso_models_answer.item_asked_id, fc.item_id as item_option_id, COUNT(*) as count
FROM proso_models_answer
INNER JOIN proso_flashcards_flashcardanswer_options AS options ON proso_models_answer.id = options.flashcardanswer_id
INNER JOIN proso_flashcards_flashcard AS fc on fc.id = options.flashcard_id
WHERE proso_models_answer.item_asked_id = %s AND ''' + user_where + '''
GROUP BY 1, 2
) AS closed ON main.item_asked_id = closed.item_asked_id AND main.item_answered_id = closed.item_option_id
WHERE
main.item_asked_id = %s
AND main.item_answered_id IS NOT NULL
AND main.item_asked_id != main.item_answered_id
AND ''' + user_where + '''
GROUP BY 1, open.count, closed.count
''', [item] + user_params + [item] + user_params + [item] + user_params)
found = {}
for item_answered, count in cursor:
found[item_answered] = count
for i in to_find:
found[i] = 1000 * (found.get(i, 0.05) + 0 if len(context_mapping[item]) == 0 else (len(context_mapping[i] & context_mapping[item]) / len(context_mapping[i] | context_mapping[item])))
cache_expiration = get_config('proso_models', 'confusing_factor.cache_expiration', default=24 * 60 * 60)
# trying to decrease probability of race condition
confusing_factor_cache = cache.get('database_environment__confusing_factor', {})
for item_secondary, count in found.items():
cache_key = '{}_{}_{}'.format(item, item_secondary, user)
confusing_factor_cache[cache_key] = count
cached_all[item_secondary] = count
cache.set('database_environment__confusing_factor', confusing_factor_cache, cache_expiration)
return [cached_all[i] for i in items]
def create_student(request):
""" Create new user in class
POST parameters (JSON):
class:
id of the class
username (optional):
username of student, if not provided username is create based on name
password (optional):
password of student
first_name:
first_name of student
last_name (optional):
last_name of student
email (optional):
e-mail of student
"""
if not get_config('proso_user', 'allow_create_students', default=False):
return render_json(request, {
'error': _('Creation of new users is not allowed.'),
'error_type': 'student_creation_not_allowed'
}, template='class_create_student.html', help_text=create_student.__doc__, status=403)
if request.method == 'GET':
return render(request, 'class_create_student.html', {}, help_text=create_student.__doc__)
if request.method == 'POST':
if not request.user.is_authenticated() or not hasattr(request.user, "userprofile"):
return render_json(request, {
'error': _('User is not logged in.'),
'error_type': 'user_unauthorized'
}, template='class_create_student.html', status=401)
data = json_body(request.body.decode("utf-8"))
try:
cls = Class.objects.get(pk=data['class'], owner=request.user.userprofile)
except (Class.DoesNotExist, KeyError):
return render_json(request, {
'error': _('Class with given id not found.'),
'error_type': 'class_not_found',
}, template='class_create_student.html', status=404)
if 'first_name' not in data or not data['first_name']:
return render_json(request, {
'error': _('First name code is missing.'),
'error_type': 'missing_first_name'
}, template='class_create_student.html', status=400)
user = User(first_name=data['first_name'])
if data.get('last_name'):
user.last_name = data['last_name']
if data.get('email'):
if User.objects.filter(email=data['email']).exists():
return render_json(request, {
'error': _('There is already a user with the given e-mail.'),
'error_type': 'email_exists'
}, template='class_create_student.html', status=400)
user.email = data['email']
if data.get('username'):
if User.objects.filter(username=data['username']).exists():
return render_json(request, {
'error': _('There is already a user with the given username.'),
'error_type': 'username_exists'
}, template='class_create_student.html', status=400)
user.username = data['username']
else:
user.username = get_unused_username(user)
if data.get('password'):
user.set_password(data['password'])
user.save()
cls.members.add(user.userprofile)
return render_json(request, user.userprofile.to_json(nested=True), template='class_create_student.html', status=201)
else:
return HttpResponseBadRequest("method %s is not allowed".format(request.method))
def options(request, json_list, nested):
environment = get_environment()
user_id = get_user_id(request)
time = get_time(request)
if is_time_overridden(request):
environment.shift_time(time)
item_selector = get_item_selector()
option_selector = get_option_selector(item_selector)
option_sets = get_option_set().get_option_for_flashcards([
(question['payload'], question['question_type'])
for question in json_list
if question['payload']['object_type'] == 'fc_flashcard'
])
metas = [question.get('meta', {}) for question in json_list]
test_position = _test_index(metas)
selected_items = [
question['payload']['item_id'] for question in json_list
if question['payload']['object_type'] == 'fc_flashcard'
]
allow_zero_option = {}
for question in json_list:
if question['payload']['object_type'] != 'fc_flashcard':
continue
if len(option_sets[question['payload']['item_id']]
) == 0 and 'term_secondary' not in question['payload']:
# If we do not have enough options, we have to force direction
question['question_type'] = FlashcardAnswer.FROM_TERM
disable_open_questions = False
if question['payload']['disable_open_questions']:
disable_open_questions = True
elif question['payload']['restrict_open_questions']:
disable_open_questions = question['question_type'] in {
FlashcardAnswer.FROM_DESCRIPTION,
FlashcardAnswer.FROM_TERM_TO_TERM_SECONDARY
}
allow_zero_option[question['payload']
['item_id']] = question['question_type'] in {
FlashcardAnswer.FROM_TERM,
FlashcardAnswer.FROM_TERM_SECONDARY_TO_TERM
} and not disable_open_questions
all_options = {
i: options
for i, options in zip(
selected_items,
option_selector.select_options_more_items(
environment,
user_id,
selected_items,
time,
option_sets,
allow_zero_options=allow_zero_option))
}
options_json_list = []
# HACK: Here, we have to take into account reference questions with zero
# options. In case of zero options we have to force a question type if the
# restriction for zero options is enabled.
config_zero_options_restriction = get_config(
'proso_models',
'options_count.parameters.allow_zero_options_restriction',
default=False)
for i, question in enumerate(json_list):
if question['payload']['object_type'] != 'fc_flashcard':
continue
if test_position is not None and test_position == i:
if 'term_secondary' not in question[
'payload'] and config_zero_options_restriction:
question['question_type'] = FlashcardAnswer.FROM_TERM
question['payload']['options'] = []
continue
options = all_options[question['payload']['item_id']]
question['payload']['options'] = [
Item.objects.item_id_to_json(o) for o in options
]
options_json_list += question['payload']['options']
item2object(request, options_json_list, nested=True)
for question in json_list:
if question['payload']['object_type'] != 'fc_flashcard':
continue
sort_key = 'term_secondary' if question[
'question_type'] == FlashcardAnswer.FROM_TERM_TO_TERM_SECONDARY else 'term'
question['payload']['options'] = sorted(
question['payload']['options'], key=lambda o: o[sort_key]['name'])
def profile(request, status=200):
"""
Get the user's profile. If the user has no assigned profile, the HTTP 404
is returned. Make a POST request to modify the user's profile.
GET parameters:
html
turn on the HTML version of the API
username:
username of user (only for users with public profile)
stats:
attache addition user statistics
POST parameters (JSON):
send_emails:
switcher turning on sending e-mails to user
public:
swicher making the user's profile publicly available
user:
password:
user's password
password_check:
user's password again to check it
first_name (optional):
user's first name
last_name (optional):
user's last name
"""
if request.method == 'GET':
if request.GET.get("username", False):
try:
user_profile = User.objects.get(username=request.GET.get("username"),
userprofile__public=True).userprofile
except ObjectDoesNotExist:
raise Http404("user not found or have not public profile")
else:
user_id = get_user_id(request)
if get_config('proso_user', 'google.openid.migration', default=True) and not is_user_id_overridden(request):
migrated_user = migrate_google_openid_user(request.user)
if migrated_user is not None:
auth.logout(request)
migrated_user.backend = 'social.backends.google.GoogleOAuth2'
auth.login(request, migrated_user)
user_profile = get_object_or_404(UserProfile, user_id=user_id)
return render_json(
request, user_profile, status=status,
template='user_profile.html', help_text=profile.__doc__)
elif request.method == 'POST':
with transaction.atomic():
to_save = json_body(request.body.decode("utf-8"))
user_id = get_user_id(request)
user_profile = get_object_or_404(UserProfile, user_id=user_id)
user = to_save.get('user', None)
if 'send_emails' in to_save:
user_profile.send_emails = bool(to_save['send_emails'])
if 'public' in to_save:
user_profile.public = bool(to_save['public'])
if user:
error = _save_user(request, user, new=False)
if error:
return render_json(request, error, template='user_json.html', status=400)
if 'properties' in to_save:
user_profile.save_properties(to_save['properties'])
user_profile.save()
request.method = "GET"
return profile(request, status=202)
else:
return HttpResponseBadRequest("method %s is not allowed".format(request.method))
def practice(request):
"""
Return the given number of questions to practice adaptively. In case of
POST request, try to save the answer(s).
GET parameters:
filter:
list of lists of identifiers (may be prefixed by minus sign to
mark complement)
language:
language (str) of items
avoid:
list of item ids to avoid
limit:
number of returned questions (default 10, maximum 100)
time:
time in format '%Y-%m-%d_%H:%M:%S' used for practicing
user:
identifier for the practicing user (only for stuff users)
stats:
turn on the enrichment of the objects by some statistics
html:
turn on the HTML version of the API
BODY:
see answer resource
"""
if request.user.id is None: # Google Bot
return render_json(
request, {
'error': _('There is no user available for the practice.'),
'error_type': 'user_undefined'
},
status=400,
template='models_json.html')
limit = min(int(request.GET.get('limit', 10)), 100)
# prepare
user = get_user_id(request)
time = get_time(request)
avoid = load_query_json(request.GET, "avoid", "[]")
practice_filter = get_filter(request)
practice_context = PracticeContext.objects.from_content(practice_filter)
environment = get_environment()
item_selector = get_item_selector()
if is_time_overridden(request):
environment.shift_time(time)
# save answers
if request.method == 'POST':
_save_answers(request, practice_context, False)
elif request.method == 'GET':
PracticeSet.objects.filter(answer__user_id=request.user.id).update(
finished=True)
if limit > 0:
item_ids = Item.objects.filter_all_reachable_leaves(
practice_filter, get_language(request))
item_ids = list(set(item_ids) - set(avoid))
limit_size = get_config('proso_models',
'practice.limit_item_set_size_to_select_from',
default=None)
if limit_size is not None and limit_size < len(item_ids):
item_ids = sample(item_ids, limit_size)
if len(item_ids) == 0:
return render_json(request, {
'error':
_('There is no item for the given filter to practice.'),
'error_type':
'empty_practice'
},
status=404,
template='models_json.html')
selected_items, meta = item_selector.select(environment,
user,
item_ids,
time,
practice_context.id,
limit,
items_in_queue=len(avoid))
result = []
for item, item_meta in zip(selected_items, meta):
question = {
'object_type': 'question',
'payload': Item.objects.item_id_to_json(item),
}
if item_meta is not None:
question['meta'] = item_meta
result.append(question)
else:
result = []
return render_json(request,
result,
template='models_json.html',
help_text=practice.__doc__)
def create_student(request):
""" Create new user in class
POST parameters (JSON):
class:
id of the class
username (optional):
username of student, if not provided username is create based on name
password (optional):
password of student
first_name:
first_name of student
last_name (optional):
last_name of student
email (optional):
e-mail of student
"""
if not get_config('proso_user', 'allow_create_students', default=False):
return render_json(request, {
'error': _('Creation of new users is not allowed.'),
'error_type': 'student_creation_not_allowed'
},
template='class_create_student.html',
help_text=create_student.__doc__,
status=403)
if request.method == 'GET':
return render(request,
'class_create_student.html', {},
help_text=create_student.__doc__)
if request.method == 'POST':
if not request.user.is_authenticated() or not hasattr(
request.user, "userprofile"):
return render_json(request, {
'error': _('User is not logged in.'),
'error_type': 'user_unauthorized'
},
template='class_create_student.html',
status=401)
data = json_body(request.body.decode("utf-8"))
try:
cls = Class.objects.get(pk=data['class'],
owner=request.user.userprofile)
except (Class.DoesNotExist, KeyError):
return render_json(request, {
'error': _('Class with given id not found.'),
'error_type': 'class_not_found',
},
template='class_create_student.html',
status=404)
if 'first_name' not in data or not data['first_name']:
return render_json(request, {
'error': _('First name code is missing.'),
'error_type': 'missing_first_name'
},
template='class_create_student.html',
status=400)
user = User(first_name=data['first_name'])
if data.get('last_name'):
user.last_name = data['last_name']
if data.get('email'):
if User.objects.filter(email=data['email']).exists():
return render_json(request, {
'error':
_('There is already a user with the given e-mail.'),
'error_type':
'email_exists'
},
template='class_create_student.html',
status=400)
user.email = data['email']
if data.get('username'):
if User.objects.filter(username=data['username']).exists():
return render_json(request, {
'error':
_('There is already a user with the given username.'),
'error_type':
'username_exists'
},
template='class_create_student.html',
status=400)
user.username = data['username']
else:
user.username = get_unused_username(user)
if data.get('password'):
user.set_password(data['password'])
user.save()
cls.members.add(user.userprofile)
return render_json(request,
user.userprofile.to_json(nested=True),
template='class_create_student.html',
status=201)
else:
return HttpResponseBadRequest("method %s is not allowed".format(
request.method))
def feedback(request):
"""
Send feedback to the authors of the system.
GET parameters:
html
turn on the HTML version of the API
POST parameters (JSON):
text:
the main feedback content
email (optional):
user's e-mail
username (optional):
user's name
"""
if request.method == 'GET':
return render(request,
'feedback_feedback.html', {},
help_text=feedback.__doc__)
if request.method == 'POST':
feedback_data = json_body(request.body.decode("utf-8"))
feedback_data['user_agent'] = Session.objects.get_current_session(
).http_user_agent.content
if not feedback_data.get('username'):
feedback_data['username'] = request.user.username
if not feedback_data.get('email'):
feedback_data['email'] = request.user.email
comment = Comment.objects.create(username=feedback_data['username'],
email=feedback_data['email'],
text=feedback_data['text'])
if get_config('proso_feedback', 'send_emails', default=True):
feedback_domain = get_config('proso_feedback',
'domain',
required=True)
feedback_to = get_config('proso_feedback', 'to', required=True)
if is_likely_worthless(feedback_data):
mail_from = 'spam@' + feedback_domain
else:
mail_from = 'feedback@' + feedback_domain
text_content = render_to_string("emails/feedback.plain.txt", {
"feedback": feedback_data,
"user": request.user,
})
html_content = render_to_string("emails/feedback.html", {
"feedback": feedback_data,
"user": request.user,
})
subject = feedback_domain + ' feedback ' + str(comment.id)
mail = EmailMultiAlternatives(
subject,
text_content,
mail_from,
feedback_to,
)
mail.attach_alternative(html_content, "text/html")
mail.send()
LOGGER.debug("email sent %s\n", text_content)
return HttpResponse('ok', status=201)
else:
return HttpResponseBadRequest("method %s is not allowed".format(
request.method))
def practice(request):
"""
Return the given number of questions to practice adaptively. In case of
POST request, try to save the answer(s).
GET parameters:
filter:
list of lists of identifiers (may be prefixed by minus sign to
mark complement)
language:
language (str) of items
avoid:
list of item ids to avoid
limit:
number of returned questions (default 10, maximum 100)
time:
time in format '%Y-%m-%d_%H:%M:%S' used for practicing
user:
identifier for the practicing user (only for stuff users)
stats:
turn on the enrichment of the objects by some statistics
html:
turn on the HTML version of the API
BODY:
see answer resource
"""
if request.user.id is None: # Google Bot
return render_json(request, {
'error': _('There is no user available for the practice.'),
'error_type': 'user_undefined'
}, status=400, template='models_json.html')
limit = min(int(request.GET.get('limit', 10)), 100)
# prepare
user = get_user_id(request)
time = get_time(request)
avoid = load_query_json(request.GET, "avoid", "[]")
practice_filter = get_filter(request)
practice_context = PracticeContext.objects.from_content(practice_filter)
environment = get_environment()
item_selector = get_item_selector()
if is_time_overridden(request):
environment.shift_time(time)
# save answers
if request.method == 'POST':
_save_answers(request, practice_context, False)
elif request.method == 'GET':
PracticeSet.objects.filter(answer__user_id=request.user.id).update(finished=True)
if limit > 0:
item_ids = Item.objects.filter_all_reachable_leaves(practice_filter, get_language(request), forbidden_identifiers=get_forbidden_items())
item_ids = list(set(item_ids) - set(avoid))
limit_size = get_config('proso_models', 'practice.limit_item_set_size_to_select_from', default=None)
if limit_size is not None and limit_size < len(item_ids):
item_ids = sample(item_ids, limit_size)
if len(item_ids) == 0:
return render_json(request, {
'error': _('There is no item for the given filter to practice.'),
'error_type': 'empty_practice'
}, status=404, template='models_json.html')
selected_items, meta = item_selector.select(environment, user, item_ids, time, practice_context.id, limit, items_in_queue=len(avoid))
result = []
for item, item_meta in zip(selected_items, meta):
question = {
'object_type': 'question',
'payload': Item.objects.item_id_to_json(item),
}
if item_meta is not None:
question['meta'] = item_meta
result.append(question)
else:
result = []
return render_json(request, result, template='models_json.html', help_text=practice.__doc__)
def profile(request, status=200):
"""
Get the user's profile. If the user has no assigned profile, the HTTP 404
is returned. Make a POST request to modify the user's profile.
GET parameters:
html
turn on the HTML version of the API
username:
username of user (only for users with public profile)
stats:
attache addition user statistics
POST parameters (JSON):
send_emails:
switcher turning on sending e-mails to user
public:
swicher making the user's profile publicly available
user:
password:
user's password
password_check:
user's password again to check it
first_name (optional):
user's first name
last_name (optional):
user's last name
"""
if request.method == 'GET':
if request.GET.get("username", False):
try:
user_profile = User.objects.get(
username=request.GET.get("username"),
userprofile__public=True).userprofile
except ObjectDoesNotExist:
raise Http404("user not found or have not public profile")
else:
user_id = get_user_id(request)
if get_config('proso_user',
'google.openid.migration',
default=True) and not is_user_id_overridden(request):
migrated_user = migrate_google_openid_user(request.user)
if migrated_user is not None:
auth.logout(request)
migrated_user.backend = 'social.backends.google.GoogleOAuth2'
auth.login(request, migrated_user)
user_profile = get_object_or_404(UserProfile, user_id=user_id)
return render_json(request,
user_profile,
status=status,
template='user_profile.html',
help_text=profile.__doc__)
elif request.method == 'POST':
with transaction.atomic():
to_save = json_body(request.body.decode("utf-8"))
user_id = get_user_id(request)
user_profile = get_object_or_404(UserProfile, user_id=user_id)
user = to_save.get('user', None)
if 'send_emails' in to_save:
user_profile.send_emails = bool(to_save['send_emails'])
if 'public' in to_save:
user_profile.public = bool(to_save['public'])
if user:
error = _save_user(request, user, new=False)
if error:
return render_json(request,
error,
template='user_json.html',
status=400)
if 'properties' in to_save:
user_profile.save_properties(to_save['properties'])
user_profile.save()
request.method = "GET"
return profile(request, status=202)
else:
return HttpResponseBadRequest("method %s is not allowed".format(
request.method))
