def request_certificate(request):
"""Request the on-demand creation of a certificate for some user, course.
A request doesn't imply a guarantee that such a creation will take place.
We intentionally use the same machinery as is used for doing certification
at the end of a course run, so that we can be sure users get graded and
then if and only if they pass, do they get a certificate issued.
"""
if request.method == "POST":
if request.user.is_authenticated():
xqci = XQueueCertInterface()
username = request.user.username
student = User.objects.get(username=username)
course_id = request.POST.get('course_id')
course = modulestore().get_instance(
course_id, CourseDescriptor.id_to_location(course_id), depth=2)
status = certificate_status_for_student(student,
course_id)['status']
if status in [
CertificateStatuses.unavailable,
CertificateStatuses.notpassing, CertificateStatuses.error
]:
logger.info(
'Grading and certification requested for user {} in course {} via /request_certificate call'
.format(username, course_id))
status = xqci.add_cert(student, course_id, course=course)
return HttpResponse(json.dumps({'add_status': status}),
mimetype='application/json')
return HttpResponse(json.dumps({'add_status': 'ERRORANONYMOUSUSER'}),
mimetype='application/json')
def generate_example_certificates(course_key):
"""Generate example certificates for a course.
Example certificates are used to validate that certificates
are configured correctly for the course. Staff members can
view the example certificates before enabling
the self-generated certificates button for students.
Several example certificates may be generated for a course.
For example, if a course offers both verified and honor certificates,
examples of both types of certificate will be generated.
If an error occurs while starting the certificate generation
job, the errors will be recorded in the database and
can be retrieved using `example_certificate_status()`.
Arguments:
course_key (CourseKey): The course identifier.
Returns:
None
"""
xqueue = XQueueCertInterface()
for cert in ExampleCertificateSet.create_example_set(course_key):
xqueue.add_example_cert(cert)
def regenerate_user_certificates(student,
course_key,
course=None,
forced_grade=None,
template_file=None,
insecure=False):
"""
It will add the regen-cert request into the xqueue.
A new record will be created to track the certificate
generation task. If an error occurs while adding the certificate
to the queue, the task will have status 'error'.
Args:
student (User)
course_key (CourseKey)
Keyword Arguments:
course (Course): Optionally provide the course object; if not provided
it will be loaded.
grade_value - The grade string, such as "Distinction"
template_file - The template file used to render this certificate
insecure - (Boolean)
"""
xqueue = XQueueCertInterface()
if insecure:
xqueue.use_https = False
generate_pdf = not has_html_certificates_enabled(course_key, course)
return xqueue.regen_cert(student,
course_key,
course=course,
forced_grade=forced_grade,
template_file=template_file,
generate_pdf=generate_pdf)
def handle(self, *args, **options):
user = options['username']
course_id = options['course']
if not (course_id and user):
raise CommandError(
'both course id and student username are required')
student = None
print "Fetching enrollment for student {0} in {1}".format(
user, course_id)
if '@' in user:
student = User.objects.get(email=user,
courseenrollment__course_id=course_id)
else:
student = User.objects.get(username=user,
courseenrollment__course_id=course_id)
print "Fetching course data for {0}".format(course_id)
course = modulestore().get_instance(
course_id, CourseDescriptor.id_to_location(course_id), depth=2)
if not options['noop']:
# Add the certificate request to the queue
xq = XQueueCertInterface()
if options['insecure']:
xq.use_https = False
ret = xq.regen_cert(student,
course_id,
course=course,
forced_grade=options['grade_value'],
template_file=options['template_file'])
print '{0} - {1}'.format(student, ret)
else:
print "noop option given, skipping work queueing..."
def generate_user_certificates(student,
course_key,
course=None,
insecure=False,
generation_mode='batch',
forced_grade=None):
"""
It will add the add-cert request into the xqueue.
A new record will be created to track the certificate
generation task. If an error occurs while adding the certificate
to the queue, the task will have status 'error'. It also emits
`edx.certificate.created` event for analytics.
Args:
student (User)
course_key (CourseKey)
Keyword Arguments:
course (Course): Optionally provide the course object; if not provided
it will be loaded.
insecure - (Boolean)
generation_mode - who has requested certificate generation. Its value should `batch`
in case of django command and `self` if student initiated the request.
forced_grade - a string indicating to replace grade parameter. if present grading
will be skipped.
"""
xqueue = XQueueCertInterface()
if insecure:
xqueue.use_https = False
if not course:
course = modulestore().get_course(course_key, depth=0)
generate_pdf = not has_html_certificates_enabled(course)
cert = xqueue.add_cert(student,
course_key,
course=course,
generate_pdf=generate_pdf,
forced_grade=forced_grade)
# If cert_status is not present in certificate valid_statuses (for example unverified) then
# add_cert returns None and raises AttributeError while accesing cert attributes.
if cert is None:
return
if CertificateStatuses.is_passing_status(cert.status):
emit_certificate_event(
'created', student, course_key, course, {
'user_id': student.id,
'course_id': unicode(course_key),
'certificate_id': cert.verify_uuid,
'enrollment_mode': cert.mode,
'generation_mode': generation_mode
})
return cert.status
def setUp(self):
super(XQueueCertInterfaceAddCertificateTest, self).setUp()
self.user = UserFactory.create()
self.course = CourseFactory.create()
self.enrollment = CourseEnrollmentFactory(
user=self.user,
course_id=self.course.id,
is_active=True,
mode="honor",
)
self.xqueue = XQueueCertInterface()
def setUp(self):
super(XQueueCertInterfaceAddCertificateTest, self).setUp()
self.user = UserFactory.create()
self.course = CourseFactory.create()
self.enrollment = CourseEnrollmentFactory(
user=self.user,
course_id=self.course.id,
is_active=True,
mode="honor",
)
self.xqueue = XQueueCertInterface()
self.user_2 = UserFactory.create()
SoftwareSecurePhotoVerificationFactory.create(user=self.user_2, status='approved')
def handle(self, *args, **options):
if options['course']:
# try to parse out the course from the serialized form
try:
course_id = CourseKey.from_string(options['course'])
except InvalidKeyError:
print(
"Course id {} could not be parsed as a CourseKey; falling back to SSCK.from_dep_str"
.format(options['course']))
course_id = SlashSeparatedCourseKey.from_deprecated_string(
options['course'])
else:
raise CommandError("You must specify a course")
user = options['username']
if not (course_id and user):
raise CommandError(
'both course id and student username are required')
student = None
print "Fetching enrollment for student {0} in {1}".format(
user, course_id)
if '@' in user:
student = User.objects.get(email=user,
courseenrollment__course_id=course_id)
else:
student = User.objects.get(username=user,
courseenrollment__course_id=course_id)
print "Fetching course data for {0}".format(course_id)
course = modulestore().get_course(course_id, depth=2)
if not options['noop']:
# Add the certificate request to the queue
xq = XQueueCertInterface()
if options['insecure']:
xq.use_https = False
ret = xq.regen_cert(student,
course_id,
course=course,
forced_grade=options['grade_value'],
template_file=options['template_file'])
print '{0} - {1}'.format(student, ret)
else:
print "noop option given, skipping work queueing..."
def generate_user_certificates(student, course_key, course=None):
"""
It will add the add-cert request into the xqueue.
A new record will be created to track the certificate
generation task. If an error occurs while adding the certificate
to the queue, the task will have status 'error'.
Args:
student (User)
course_key (CourseKey)
Keyword Arguments:
course (Course): Optionally provide the course object; if not provided
it will be loaded.
"""
xqueue = XQueueCertInterface()
xqueue.add_cert(student, course_key, course=course)
def generate_user_certificates(student, course):
"""
It will add the add-cert request into the xqueue.
Args:
student (object): user
course (object): course
Returns:
returns status of generated certificate
"""
xqueue = XQueueCertInterface()
ret = xqueue.add_cert(student, course.id, course=course)
log.info((u"Added a certificate generation task to the XQueue "
u"for student %s in course '%s'. "
u"The new certificate status is '%s'."), student.id,
unicode(course.id), ret)
return ret
def generate_user_certificates(student, course_key, course=None):
"""
It will add the add-cert request into the xqueue.
Args:
student (User)
course_key (CourseKey)
Keyword Arguments:
course (Course): Optionally provide the course object; if not provided
it will be loaded.
Returns:
returns status of generated certificate
"""
xqueue = XQueueCertInterface()
ret = xqueue.add_cert(student, course_key, course=course)
log.info((u"Added a certificate generation task to the XQueue "
u"for student %s in course '%s'. "
u"The new certificate status is '%s'."), student.id,
unicode(course_key), ret)
return ret
def setUp(self):
super(XQueueCertInterfaceExampleCertificateTest, self).setUp()
self.xqueue = XQueueCertInterface()
def setUp(self):
super(XQueueCertInterfaceTest, self).setUp()
self.xqueue = XQueueCertInterface()
def handle(self, *args, **options):
LOGGER.info((u"Starting to create tasks for ungenerated certificates "
u"with arguments %s and options %s"), unicode(args),
unicode(options))
# Will only generate a certificate if the current
# status is in the unavailable state, can be set
# to something else with the force flag
if options['force']:
valid_statuses = [getattr(CertificateStatuses, options['force'])]
else:
valid_statuses = [CertificateStatuses.unavailable]
# Print update after this many students
STATUS_INTERVAL = 500
if options['course']:
# try to parse out the course from the serialized form
try:
course = CourseKey.from_string(options['course'])
except InvalidKeyError:
LOGGER.warning((
u"Course id %s could not be parsed as a CourseKey; "
u"falling back to SlashSeparatedCourseKey.from_deprecated_string()"
), options['course'])
course = SlashSeparatedCourseKey.from_deprecated_string(
options['course'])
ended_courses = [course]
else:
raise CommandError("You must specify a course")
for course_key in ended_courses:
# prefetch all chapters/sequentials by saying depth=2
course = modulestore().get_course(course_key, depth=2)
enrolled_students = User.objects.filter(
courseenrollment__course_id=course_key)
xq = XQueueCertInterface()
if options['insecure']:
xq.use_https = False
total = enrolled_students.count()
count = 0
start = datetime.datetime.now(UTC)
for student in enrolled_students:
count += 1
if count % STATUS_INTERVAL == 0:
# Print a status update with an approximation of
# how much time is left based on how long the last
# interval took
diff = datetime.datetime.now(UTC) - start
timeleft = diff * (total - count) / STATUS_INTERVAL
hours, remainder = divmod(timeleft.seconds, 3600)
minutes, _seconds = divmod(remainder, 60)
print "{0}/{1} completed ~{2:02}:{3:02}m remaining".format(
count, total, hours, minutes)
start = datetime.datetime.now(UTC)
cert_status = certificate_status_for_student(
student, course_key)['status']
LOGGER.info((u"Student %s has certificate status '%s' "
u"in course '%s'"), student.id, cert_status,
unicode(course_key))
if cert_status in valid_statuses:
if not options['noop']:
# Add the certificate request to the queue
ret = xq.add_cert(student, course_key, course=course)
if ret == 'generating':
LOGGER.info((
u"Added a certificate generation task to the XQueue "
u"for student %s in course '%s'. "
u"The new certificate status is '%s'."),
student.id, unicode(course_key), ret)
else:
LOGGER.info((u"Skipping certificate generation for "
u"student %s in course '%s' "
u"because the noop flag is set."),
student.id, unicode(course_key))
else:
LOGGER.info((u"Skipped student %s because "
u"certificate status '%s' is not in %s"),
student.id, cert_status,
unicode(valid_statuses))
LOGGER.info((u"Completed ungenerated certificates command "
u"for course '%s'"), unicode(course_key))
def handle(self, *args, **options):
# Will only generate a certificate if the current
# status is in the unavailable state, can be set
# to something else with the force flag
if options['force']:
valid_statuses = getattr(CertificateStatuses, options['force'])
else:
valid_statuses = [CertificateStatuses.unavailable]
# Print update after this many students
STATUS_INTERVAL = 500
if options['course']:
ended_courses = [options['course']]
else:
# Find all courses that have ended
ended_courses = []
for course_id in [
course # all courses in COURSE_LISTINGS
for sub in settings.COURSE_LISTINGS
for course in settings.COURSE_LISTINGS[sub]
]:
course_loc = CourseDescriptor.id_to_location(course_id)
course = modulestore().get_instance(course_id, course_loc)
if course.has_ended():
ended_courses.append(course_id)
for course_id in ended_courses:
# prefetch all chapters/sequentials by saying depth=2
course = modulestore().get_instance(
course_id, CourseDescriptor.id_to_location(course_id), depth=2)
print "Fetching enrolled students for {0}".format(course_id)
enrolled_students = User.objects.filter(
courseenrollment__course_id=course_id)
xq = XQueueCertInterface()
if options['insecure']:
xq.use_https = False
total = enrolled_students.count()
count = 0
start = datetime.datetime.now(UTC)
for student in enrolled_students:
count += 1
if count % STATUS_INTERVAL == 0:
# Print a status update with an approximation of
# how much time is left based on how long the last
# interval took
diff = datetime.datetime.now(UTC) - start
timeleft = diff * (total - count) / STATUS_INTERVAL
hours, remainder = divmod(timeleft.seconds, 3600)
minutes, seconds = divmod(remainder, 60)
print "{0}/{1} completed ~{2:02}:{3:02}m remaining".format(
count, total, hours, minutes)
start = datetime.datetime.now(UTC)
if certificate_status_for_student(
student, course_id)['status'] in valid_statuses:
if not options['noop']:
# Add the certificate request to the queue
ret = xq.add_cert(student, course_id, course=course)
if ret == 'generating':
print '{0} - {1}'.format(student, ret)
def handle(self, *args, **options):
# Scrub the username from the log message
cleaned_options = copy.copy(options)
if 'username' in cleaned_options:
cleaned_options['username'] = '******'
LOGGER.info(
(
u"Starting to create tasks to regenerate certificates "
u"with arguments %s and options %s"
),
unicode(args),
unicode(cleaned_options)
)
if options['course']:
# try to parse out the course from the serialized form
try:
course_id = CourseKey.from_string(options['course'])
except InvalidKeyError:
LOGGER.warning(
(
u"Course id %s could not be parsed as a CourseKey; "
u"falling back to SlashSeparatedCourseKey.from_deprecated_string()"
),
options['course']
)
course_id = SlashSeparatedCourseKey.from_deprecated_string(options['course'])
else:
raise CommandError("You must specify a course")
user = options['username']
if not (course_id and user):
raise CommandError('both course id and student username are required')
student = None
if '@' in user:
student = User.objects.get(email=user, courseenrollment__course_id=course_id)
else:
student = User.objects.get(username=user, courseenrollment__course_id=course_id)
course = modulestore().get_course(course_id, depth=2)
if not options['noop']:
LOGGER.info(
(
u"Adding task to the XQueue to generate a certificate "
u"for student %s in course '%s'."
),
student.id,
course_id
)
# Add the certificate request to the queue
xqueue_interface = XQueueCertInterface()
if options['insecure']:
xqueue_interface.use_https = False
ret = xqueue_interface.regen_cert(
student, course_id, course=course,
forced_grade=options['grade_value'],
template_file=options['template_file']
)
LOGGER.info(
(
u"Added a certificate regeneration task to the XQueue "
u"for student %s in course '%s'. "
u"The new certificate status is '%s'."
),
student.id,
unicode(course_id),
ret
)
else:
LOGGER.info(
(
u"Skipping certificate generation for "
u"student %s in course '%s' "
u"because the noop flag is set."
),
student.id,
unicode(course_id)
)
LOGGER.info(
(
u"Finished regenerating certificates command for "
u"user %s and course '%s'."
),
student.id,
unicode(course_id)
)
def handle(self, *args, **options):
# Will only generate a certificate if the current
# status is in the unavailable state, can be set
# to something else with the force flag
if options['force']:
valid_statuses = getattr(CertificateStatuses, options['force'])
else:
valid_statuses = [CertificateStatuses.unavailable]
# Print update after this many students
STATUS_INTERVAL = 500
if options['course']:
# try to parse out the course from the serialized form
try:
course = CourseKey.from_string(options['course'])
except InvalidKeyError:
print(
"Course id {} could not be parsed as a CourseKey; falling back to SSCK.from_dep_str"
.format(options['course']))
course = SlashSeparatedCourseKey.from_deprecated_string(
options['course'])
ended_courses = [course]
else:
raise CommandError("You must specify a course")
for course_key in ended_courses:
# prefetch all chapters/sequentials by saying depth=2
course = modulestore().get_course(course_key, depth=2)
print "Fetching enrolled students for {0}".format(
course_key.to_deprecated_string())
enrolled_students = User.objects.filter(
courseenrollment__course_id=course_key)
xq = XQueueCertInterface()
if options['insecure']:
xq.use_https = False
total = enrolled_students.count()
count = 0
start = datetime.datetime.now(UTC)
for student in enrolled_students:
count += 1
if count % STATUS_INTERVAL == 0:
# Print a status update with an approximation of
# how much time is left based on how long the last
# interval took
diff = datetime.datetime.now(UTC) - start
timeleft = diff * (total - count) / STATUS_INTERVAL
hours, remainder = divmod(timeleft.seconds, 3600)
minutes, seconds = divmod(remainder, 60)
print "{0}/{1} completed ~{2:02}:{3:02}m remaining".format(
count, total, hours, minutes)
start = datetime.datetime.now(UTC)
if certificate_status_for_student(
student, course_key)['status'] in valid_statuses:
if not options['noop']:
# Add the certificate request to the queue
ret = xq.add_cert(student, course_key, course=course)
if ret == 'generating':
print '{0} - {1}'.format(student, ret)
