a8bed5ce98
Makes logistration available at /login and /register as well as /accounts/login/ and /accounts/register/. In addition: - Adds support for redirect URLs in third party auth for combined login/registration page - Adds support for external auth on the combined login/registration page - Removes old login and registration acceptance tests - Adds deprecation warnings to old login and register views - Moves third party auth util to student_account - Adds exception for microsites (theming)
416 lines
15 KiB
Python
416 lines
15 KiB
Python
"""
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Enrollment operations for use by instructor APIs.
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Does not include any access control, be sure to check access before calling.
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"""
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import json
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from django.contrib.auth.models import User
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from django.conf import settings
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from django.core.urlresolvers import reverse
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from django.core.mail import send_mail
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from django.utils.translation import override as override_language
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from student.models import CourseEnrollment, CourseEnrollmentAllowed
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from courseware.models import StudentModule
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from edxmako.shortcuts import render_to_string
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from lang_pref import LANGUAGE_KEY
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from submissions import api as sub_api # installed from the edx-submissions repository
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from student.models import anonymous_id_for_user
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from openedx.core.djangoapps.user_api.models import UserPreference
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from microsite_configuration import microsite
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class EmailEnrollmentState(object):
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""" Store the complete enrollment state of an email in a class """
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def __init__(self, course_id, email):
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exists_user = User.objects.filter(email=email).exists()
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if exists_user:
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user = User.objects.get(email=email)
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mode, is_active = CourseEnrollment.enrollment_mode_for_user(user, course_id)
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# is_active is `None` if the user is not enrolled in the course
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exists_ce = is_active is not None and is_active
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full_name = user.profile.name
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else:
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mode = None
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exists_ce = False
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full_name = None
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ceas = CourseEnrollmentAllowed.objects.filter(course_id=course_id, email=email).all()
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exists_allowed = ceas.exists()
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state_auto_enroll = exists_allowed and ceas[0].auto_enroll
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self.user = exists_user
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self.enrollment = exists_ce
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self.allowed = exists_allowed
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self.auto_enroll = bool(state_auto_enroll)
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self.full_name = full_name
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self.mode = mode
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def __repr__(self):
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return "{}(user={}, enrollment={}, allowed={}, auto_enroll={})".format(
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self.__class__.__name__,
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self.user,
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self.enrollment,
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self.allowed,
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self.auto_enroll,
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)
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def to_dict(self):
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"""
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example: {
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'user': False,
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'enrollment': False,
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'allowed': True,
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'auto_enroll': True,
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}
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"""
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return {
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'user': self.user,
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'enrollment': self.enrollment,
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'allowed': self.allowed,
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'auto_enroll': self.auto_enroll,
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}
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def get_user_email_language(user):
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"""
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Return the language most appropriate for writing emails to user. Returns
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None if the preference has not been set, or if the user does not exist.
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"""
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return UserPreference.get_preference(user, LANGUAGE_KEY)
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def enroll_email(course_id, student_email, auto_enroll=False, email_students=False, email_params=None, language=None):
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"""
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Enroll a student by email.
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`student_email` is student's emails e.g. "foo@bar.com"
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`auto_enroll` determines what is put in CourseEnrollmentAllowed.auto_enroll
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if auto_enroll is set, then when the email registers, they will be
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enrolled in the course automatically.
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`email_students` determines if student should be notified of action by email.
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`email_params` parameters used while parsing email templates (a `dict`).
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`language` is the language used to render the email.
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returns two EmailEnrollmentState's
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representing state before and after the action.
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"""
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previous_state = EmailEnrollmentState(course_id, student_email)
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if previous_state.user:
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# if the student is currently unenrolled, don't enroll them in their
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# previous mode
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course_mode = u"honor"
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if previous_state.enrollment:
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course_mode = previous_state.mode
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CourseEnrollment.enroll_by_email(student_email, course_id, course_mode)
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if email_students:
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email_params['message'] = 'enrolled_enroll'
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email_params['email_address'] = student_email
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email_params['full_name'] = previous_state.full_name
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send_mail_to_student(student_email, email_params, language=language)
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else:
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cea, _ = CourseEnrollmentAllowed.objects.get_or_create(course_id=course_id, email=student_email)
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cea.auto_enroll = auto_enroll
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cea.save()
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if email_students:
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email_params['message'] = 'allowed_enroll'
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email_params['email_address'] = student_email
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send_mail_to_student(student_email, email_params, language=language)
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after_state = EmailEnrollmentState(course_id, student_email)
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return previous_state, after_state
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def unenroll_email(course_id, student_email, email_students=False, email_params=None, language=None):
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"""
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Unenroll a student by email.
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`student_email` is student's emails e.g. "foo@bar.com"
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`email_students` determines if student should be notified of action by email.
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`email_params` parameters used while parsing email templates (a `dict`).
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`language` is the language used to render the email.
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returns two EmailEnrollmentState's
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representing state before and after the action.
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"""
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previous_state = EmailEnrollmentState(course_id, student_email)
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if previous_state.enrollment:
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CourseEnrollment.unenroll_by_email(student_email, course_id)
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if email_students:
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email_params['message'] = 'enrolled_unenroll'
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email_params['email_address'] = student_email
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email_params['full_name'] = previous_state.full_name
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send_mail_to_student(student_email, email_params, language=language)
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if previous_state.allowed:
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CourseEnrollmentAllowed.objects.get(course_id=course_id, email=student_email).delete()
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if email_students:
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email_params['message'] = 'allowed_unenroll'
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email_params['email_address'] = student_email
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# Since no User object exists for this student there is no "full_name" available.
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send_mail_to_student(student_email, email_params, language=language)
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after_state = EmailEnrollmentState(course_id, student_email)
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return previous_state, after_state
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def send_beta_role_email(action, user, email_params):
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"""
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Send an email to a user added or removed as a beta tester.
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`action` is one of 'add' or 'remove'
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`user` is the User affected
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`email_params` parameters used while parsing email templates (a `dict`).
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"""
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if action == 'add':
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email_params['message'] = 'add_beta_tester'
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email_params['email_address'] = user.email
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email_params['full_name'] = user.profile.name
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elif action == 'remove':
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email_params['message'] = 'remove_beta_tester'
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email_params['email_address'] = user.email
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email_params['full_name'] = user.profile.name
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else:
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raise ValueError("Unexpected action received '{}' - expected 'add' or 'remove'".format(action))
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send_mail_to_student(user.email, email_params, language=get_user_email_language(user))
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def reset_student_attempts(course_id, student, module_state_key, delete_module=False):
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"""
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Reset student attempts for a problem. Optionally deletes all student state for the specified problem.
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In the previous instructor dashboard it was possible to modify/delete
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modules that were not problems. That has been disabled for safety.
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`student` is a User
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`problem_to_reset` is the name of a problem e.g. 'L2Node1'.
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To build the module_state_key 'problem/' and course information will be appended to `problem_to_reset`.
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Raises:
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ValueError: `problem_state` is invalid JSON.
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StudentModule.DoesNotExist: could not load the student module.
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submissions.SubmissionError: unexpected error occurred while resetting the score in the submissions API.
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"""
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# Reset the student's score in the submissions API
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# Currently this is used only by open assessment (ORA 2)
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# We need to do this *before* retrieving the `StudentModule` model,
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# because it's possible for a score to exist even if no student module exists.
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if delete_module:
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sub_api.reset_score(
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anonymous_id_for_user(student, course_id),
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course_id.to_deprecated_string(),
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module_state_key.to_deprecated_string(),
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)
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module_to_reset = StudentModule.objects.get(
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student_id=student.id,
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course_id=course_id,
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module_state_key=module_state_key
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)
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if delete_module:
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module_to_reset.delete()
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else:
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_reset_module_attempts(module_to_reset)
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def _reset_module_attempts(studentmodule):
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"""
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Reset the number of attempts on a studentmodule.
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Throws ValueError if `problem_state` is invalid JSON.
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"""
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# load the state json
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problem_state = json.loads(studentmodule.state)
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# old_number_of_attempts = problem_state["attempts"]
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problem_state["attempts"] = 0
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# save
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studentmodule.state = json.dumps(problem_state)
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studentmodule.save()
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def get_email_params(course, auto_enroll, secure=True):
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"""
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Generate parameters used when parsing email templates.
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`auto_enroll` is a flag for auto enrolling non-registered students: (a `boolean`)
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Returns a dict of parameters
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"""
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protocol = 'https' if secure else 'http'
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stripped_site_name = microsite.get_value(
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'SITE_NAME',
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settings.SITE_NAME
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)
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# TODO: Use request.build_absolute_uri rather than '{proto}://{site}{path}'.format
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# and check with the Services team that this works well with microsites
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registration_url = u'{proto}://{site}{path}'.format(
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proto=protocol,
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site=stripped_site_name,
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path=reverse('register_user')
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)
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course_url = u'{proto}://{site}{path}'.format(
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proto=protocol,
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site=stripped_site_name,
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path=reverse('course_root', kwargs={'course_id': course.id.to_deprecated_string()})
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)
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# We can't get the url to the course's About page if the marketing site is enabled.
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course_about_url = None
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if not settings.FEATURES.get('ENABLE_MKTG_SITE', False):
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course_about_url = u'{proto}://{site}{path}'.format(
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proto=protocol,
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site=stripped_site_name,
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path=reverse('about_course', kwargs={'course_id': course.id.to_deprecated_string()})
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)
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is_shib_course = uses_shib(course)
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# Composition of email
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email_params = {
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'site_name': stripped_site_name,
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'registration_url': registration_url,
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'course': course,
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'auto_enroll': auto_enroll,
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'course_url': course_url,
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'course_about_url': course_about_url,
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'is_shib_course': is_shib_course,
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}
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return email_params
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def send_mail_to_student(student, param_dict, language=None):
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"""
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Construct the email using templates and then send it.
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`student` is the student's email address (a `str`),
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`param_dict` is a `dict` with keys
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[
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`site_name`: name given to edX instance (a `str`)
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`registration_url`: url for registration (a `str`)
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`course_id`: id of course (a `str`)
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`auto_enroll`: user input option (a `str`)
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`course_url`: url of course (a `str`)
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`email_address`: email of student (a `str`)
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`full_name`: student full name (a `str`)
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`message`: type of email to send and template to use (a `str`)
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`is_shib_course`: (a `boolean`)
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]
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`language` is the language used to render the email. If None the language
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of the currently-logged in user (that is, the user sending the email) will
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be used.
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Returns a boolean indicating whether the email was sent successfully.
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"""
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# add some helpers and microconfig subsitutions
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if 'course' in param_dict:
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param_dict['course_name'] = param_dict['course'].display_name_with_default
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param_dict['site_name'] = microsite.get_value(
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'SITE_NAME',
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param_dict['site_name']
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)
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subject = None
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message = None
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# see if we are running in a microsite and that there is an
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# activation email template definition available as configuration, if so, then render that
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message_type = param_dict['message']
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email_template_dict = {
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'allowed_enroll': (
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'emails/enroll_email_allowedsubject.txt',
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'emails/enroll_email_allowedmessage.txt'
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),
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'enrolled_enroll': (
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'emails/enroll_email_enrolledsubject.txt',
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'emails/enroll_email_enrolledmessage.txt'
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),
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'allowed_unenroll': (
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'emails/unenroll_email_subject.txt',
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'emails/unenroll_email_allowedmessage.txt'
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),
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'enrolled_unenroll': (
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'emails/unenroll_email_subject.txt',
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'emails/unenroll_email_enrolledmessage.txt'
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),
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'add_beta_tester': (
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'emails/add_beta_tester_email_subject.txt',
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'emails/add_beta_tester_email_message.txt'
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),
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'remove_beta_tester': (
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'emails/remove_beta_tester_email_subject.txt',
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'emails/remove_beta_tester_email_message.txt'
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),
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'account_creation_and_enrollment': (
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'emails/enroll_email_enrolledsubject.txt',
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'emails/account_creation_and_enroll_emailMessage.txt'
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),
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}
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subject_template, message_template = email_template_dict.get(message_type, (None, None))
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if subject_template is not None and message_template is not None:
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subject, message = render_message_to_string(
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subject_template, message_template, param_dict, language=language
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)
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if subject and message:
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# Remove leading and trailing whitespace from body
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message = message.strip()
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# Email subject *must not* contain newlines
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subject = ''.join(subject.splitlines())
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from_address = microsite.get_value(
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'email_from_address',
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settings.DEFAULT_FROM_EMAIL
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)
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send_mail(subject, message, from_address, [student], fail_silently=False)
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def render_message_to_string(subject_template, message_template, param_dict, language=None):
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"""
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Render a mail subject and message templates using the parameters from
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param_dict and the given language. If language is None, the platform
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default language is used.
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Returns two strings that correspond to the rendered, translated email
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subject and message.
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"""
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with override_language(language):
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return get_subject_and_message(subject_template, message_template, param_dict)
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def get_subject_and_message(subject_template, message_template, param_dict):
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"""
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Return the rendered subject and message with the appropriate parameters.
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"""
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subject = render_to_string(subject_template, param_dict)
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message = render_to_string(message_template, param_dict)
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return subject, message
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def uses_shib(course):
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"""
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Used to return whether course has Shibboleth as the enrollment domain
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Returns a boolean indicating if Shibboleth authentication is set for this course.
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"""
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return course.enrollment_domain and course.enrollment_domain.startswith(settings.SHIBBOLETH_DOMAIN_PREFIX)
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