def client_register(request):
classroom_id = request.POST['classroom']
try:
classroom = Classroom.objects.get(id=classroom_id)
except Classroom.DoesNotExist:
return json_response({"success":False, "error":"Error: No classroom with that id"})
try:
ctr = ClassroomTeacherRel.objects.get(classroom=classroom)
except ClassroomTeacherRel.DoesNotExist:
classroom_log(classroom, "Client register error: No teacher for class.")
return json_response({"success":False, "error":"Error: No teacher for that classroom"})
teacher = ctr.user
total_students = get_num_teacher_students(teacher)
analytics.track_event("student_first_login", user=teacher, data={"total_students":total_students+1})
analytics.person_update(teacher, {"num_students":total_students+1})
real_username = get_real_username(classroom_id, request.POST['name'])
try:
user = User.objects.get(username=real_username)
except User.DoesNotExist:
user = None
if user:
if UserClassroomAssignment.objects.filter(user=user, classroom=classroom).exists():
classroom_log(classroom, "Client register error: User already exists: %s" % real_username)
return json_response({"success":False, "error":"Error: User exists already!"})
elif UserClassroomAssignment.objects.filter(user=user).exists():
classroom_log(classroom, "Client register error: User exists in another class: %s" % real_username)
return json_response({"success":False, "error":"Error: User exists in another class!"})
else:
uca = UserClassroomAssignment(user=user, classroom=classroom)
uca.save()
user = perform_signin(request, real_username, "default")
classroom_log(classroom, "Client register (already exists, logging in): %s" % real_username)
return json_response({"success":True, "sessionid":request.session.session_key})
else:
try:
user = User.objects.create_user(real_username, "", "default")
except:
classroom_log(classroom, "Client register error: Username taken: %s" % real_username)
return json_response({"success":False, "error":"Error: Username taken"})
user = perform_signin(request, real_username, "default")
if user:
user.first_name = request.POST['name']
user.save()
uca = UserClassroomAssignment(user=user, classroom=classroom)
uca.save()
classroom_log(classroom, "Client register: %s" % real_username)
return json_response({"success":True, "sessionid":request.session.session_key})
else:
log_and_email(request, "User successfully created but couldn't sign in!")
return json_response({"success":False, "error":"Error: Something went wrong. Try again!"})
def client_login(request):
classroom_id = request.POST['classroom']
username = request.POST['name']
password = request.POST.get("password","default")
# Make sure the class is real
try:
classroom = Classroom.objects.get(id=classroom_id)
except Classroom.DoesNotExist:
return json_response({"success":False, "error":"Error: No classroom with that id"})
# Make sure there's a teacher for it
try:
ctr = ClassroomTeacherRel.objects.get(classroom=classroom)
except ClassroomTeacherRel.DoesNotExist:
classroom_log(classroom, "Client login error: No teacher for classroom, reported for user: %s", username)
return json_response({"success":False, "error":"Error: No teacher for that classroom"})
teacher = ctr.user
total_students = get_num_teacher_students(teacher)
analytics.track_event("student_second_login", user=teacher, data={"total_students":total_students})
analytics.person_update(teacher, {"num_students":total_students})
# Get the user who's going to sign in
try:
user_to_signin = get_user_from_name(classroom.id, username)
except UserClassroomAssignment.DoesNotExist:
classroom_log(classroom, "Client login error: Not a real user: %s" % username)
return json_response({"success":False, "error":"Error: Not a real user!"})
# Check if we have enough licenses or if our trial is still going
num_exp = get_num_playing_expired_students(teacher)
num_lic = teacher.profile.num_licenses
if user_to_signin.profile.playtime > TRIAL_PLAYTIME_SECONDS:
# If the teacher has no licenses then don't let them log in after the trial time expires
if num_lic == 0:
classroom_log(classroom, "Client login error: Trial time expired for user: %s" % username)
return json_response({"success":False, "error":"Error: your trial time expired!"})
# If they have licenses but not enough, tell the student about it
elif num_exp >= num_lic:
classroom_log(classroom, "Client login error: Not enough licenses, reported for user: %s" % username)
return json_response({"success":False, "error":"Error: %d students but only %d licenses!" % (num_exp+1, num_lic)})
# Try to sign in!
user = perform_signin_no_password(request, user_to_signin.username)
if user:
classroom_log(classroom, "Client login: %s" % username)
return json_response({"success":True, "sessionid":request.session.session_key})
classroom_log(classroom, "Client login error: Not a real user: %s" % username)
return json_response({"success":False, "error":"Error: Not a real user!"})