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GNU GENERAL PUBLIC LICENSE
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How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
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<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
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This program is distributed in the hope that it will be useful,
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Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
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This is free software, and you are welcome to redistribute it
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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abgabesystem.py
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#!/usr/bin/env python3
import argparse
import gitlab
import logging as log
import csv
import secrets
import subprocess
import os
class Student():
"""A Gitlab user
Students are read from the CSV file that was exported from Stud.IP.
For each user, a dummy LDAP user is created in Gitlab.
Upon the first login Gitlab fetches the complete user using LDAP.
"""
def __init__(self, user, mail, name, group):
self.user = user
self.email = mail
self.name = name
self.group = group
def from_csv(csvfile):
"""Creates an iterable containing the users"""
reader = csv.DictReader(csvfile, delimiter=';', quotechar='"')
for line in reader:
yield Student(line['Nutzernamen'], line['E-Mail'], line['Vorname']
+ ' ' + line['Nachname'], line['Gruppe'])
def create_tag(project, tag, ref):
"""Creates protected tag on ref
The tag is used by the abgabesystem to mark the state of a solution at the
deadline
"""
print('Project %s. Creating tag %s' % (project.path, tag))
project.tags.create({
'tag_name': tag,
'ref': ref
})
def get_students(gl, students_csv):
"""Returns already existing GitLab users for students from provided CSV file that have an account.
"""
for student in Student.from_csv(students_csv):
users = gl.users.list(search=student.user)
if len(users) > 0:
yield users[0]
def create_user(gl, student, ldap_base, ldap_provider):
"""Creates a GitLab user account student.
Requires admin privileges.
"""
user = gl.users.create({
'email': student.email,
'username': student.user,
'name': student.name,
'provider': ldap_provider,
'skip_confirmation': True,
'extern_uid': 'uid=%s,%s' % (student.user, ldap_base),
'password': secrets.token_urlsafe(nbytes=32)
})
user.customattributes.set('group', student.group)
return user
def create_users(gl, args):
"""Creates Gitlab users from exported students list
"""
with open(args.students, encoding='iso8859') as students_csv:
for student in Student.from_csv(students_csv):
try:
create_user(gl, student, args.ldap_base, args.ldap_provider)
except gitlab.exceptions.GitlabCreateError:
log.warn('Failed to create user: %s' % student.user)
def fork_reference(gl, reference, namespace, deploy_key):
"""Create fork of solutions for student.
"""
fork = reference.forks.create({
'namespace': namespace.id
})
project = gl.projects.get(fork.id)
project.visibility = 'private'
project.container_registry_enabled = False
project.lfs_enabled = False
deploy_key = project.keys.create({
'title': "Deploy Key",
'key': deploy_key
})
project.keys.enable(deploy_key.id)
project.save()
return project
def create_project(gl, group, user, reference, deploy_key):
"""Creates a namespace (subgroup) and forks the project with
the reference solutions into that namespace
"""
subgroup = None
try:
subgroup = gl.groups.create({
'name': user.username,
'path': user.username,
'parent_id': group.id
})
except gitlab.exceptions.GitlabError as e:
subgroups = group.subgroups.list(search=user.username)
if len(subgroups) > 0 and subgroup[0].name == user.username:
subgroup = subgroups[0]
subgroup = gl.groups.get(subgroup.id, lazy=True)
else:
raise(e)
try:
subgroup.members.create({
'user_id': user.id,
'access_level': gitlab.DEVELOPER_ACCESS,
})
except gitlab.exceptions.GitlabError:
log.warning('Failed to add student %s to its own group' % user.username)
try:
fork_reference(gl, reference, subgroup, deploy_key)
except gitlab.exceptions.GitlabCreateError as e:
log.warning(e.error_message)
def setup_course(gl, group, students_csv, deploy_key):
"""Sets up the internal structure for the group for use with the course
"""
solution = None
reference_project = None
try:
solution = gl.groups.create({
'name': 'solutions',
'path': 'solutions',
'parent_id': group.id,
'visibility': 'internal',
})
except gitlab.exceptions.GitlabCreateError as e:
log.info('Failed to create solutions group. %s' % e.error_message)
solutions = group.subgroups.list(search='solutions')
if len(solutions) > 0 and solutions[0].name == 'solutions':
solution = gl.groups.get(solutions[0].id, lazy=True)
else:
raise(gitlab.exceptions.GitlabCreateError(error_message='Failed to setup solutions subgroup'))
try:
reference_project = gl.projects.create({
'name': 'solutions',
'namespace_id': solution.id,
'visibility': 'internal',
})
reference_project.commits.create({
'branch': 'master',
'commit_message': 'Initial commit',
'actions': [
{
'action': 'create',
'file_path': 'README.md',
'content': 'Example solutions go here',
},
]
})
except gitlab.exceptions.GitlabCreateError as e:
log.info('Failed to setup group structure. %s' % e.error_message)
projects = solution.projects.list(search='solutions')
if len(projects) > 0 and projects[0].name == 'solutions':
reference_project = gl.projects.get(projects[0].id)
else:
raise(gitlab.exceptions.GitlabCreateError(error_message='Failed to setup reference solutions'))
if solution is None or reference_project is None:
raise(gitlab.exceptions.GitlabCreateError(error_message='Failed to setup course'))
for user in get_students(gl, students_csv):
create_project(gl, solution, user, reference_project, deploy_key)
def projects(gl, args):
"""Creates the projects for all course participants
"""
groups = gl.groups.list(search=args.course)
if len(groups) == 0 and groups[0].name == args.course:
log.warn('This group does not exist')
else:
group = groups[0]
with open(args.deploy_key, 'r') as key, open(args.students, encoding='iso8859') as students_csv:
key = key.read()
setup_course(gl, group, students_csv, key)
def deadline(gl, args):
"""Checks deadlines for course and triggers deadline if it is reached"""
deadline_name = args.tag_name
try:
reference = gl.projects.get(args.reference, lazy=True)
for fork in reference.forks.list():
project = gl.projects.get(fork.id, lazy=False)
try:
create_tag(project, deadline_name, 'master')
except gitlab.exceptions.GitlabCreateError as e:
print(e.error_message)
except gitlab.exceptions.GitlabGetError as e:
print(e.error_message)
def plagiates(gl, args):
"""Runs the plagiarism checker (JPlag) for the solutions with a certain tag
"""
tag = args.tag_name
reference = gl.projects.get(args.reference, lazy=True)
try:
os.mkdir('solutions')
except os.FileExistsError as e:
print(e)
os.chdir('solutions')
for fork in reference.forks.list():
project = gl.projects.get(fork.id, lazy=True)
try:
subprocess.run(
['git', 'clone', '--branch', tag, project.ssh_url_to_repo, project.path_with_namespace])
os.chdir('..')
except:
print(e.error_message)
subprocess.run(
['java', '-jar', args.jplag_jar, '-s', 'solutions', '-p', 'java', '-r', 'results', '-bc', args.reference, '-l', 'java17'])
def course(gl, args):
"""Creates the group for the course
"""
try:
group = gl.groups.create({
'name': args.course,
'path': args.course,
'visibility': 'internal',
})
log.info('Created group %s' % args.course)
except gitlab.exceptions.GitlabCreateError as e:
log.warning('Failed to create group %s. %s' % (args.course, e.error_message))
if __name__ == '__main__':
gl = gitlab.Gitlab.from_config()
gl.auth()
log.info('authenticated')
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers(title='subcommands')
user_parser = subparsers.add_parser(
'users',
help='Creates users from LDAP')
user_parser.set_defaults(func=create_users)
user_parser.add_argument('-s', '--students', dest='students')
user_parser.add_argument('-b', '--ldap-base', dest='ldap_base')
user_parser.add_argument('-p', '--ldap-provider', dest='ldap_provider')
course_parser = subparsers.add_parser(
'courses',
help='Creates a new course')
course_parser.set_defaults(func=course)
course_parser.add_argument('-c', '--course', dest='course')
projects_parser = subparsers.add_parser(
'projects',
help='Sets up the projects and groups for a course')
projects_parser.set_defaults(func=projects)
projects_parser.add_argument('-c', '--course', dest='course')
projects_parser.add_argument('-d', '--deploy-key', dest='deploy_key')
projects_parser.add_argument('-s', '--students', dest='students')
deadline_parser = subparsers.add_parser(
'deadline',
description='Sets the tags at a deadline to permanently mark it in the version history')
deadline_parser.set_defaults(func=deadline)
deadline_parser.add_argument('-t', '--tag-name', dest='tag_name')
deadline_parser.add_argument('-r', '--reference', dest='reference')
plagiates_parser = subparsers.add_parser(
'plagiates',
description='Runs the plagiarism checker on all solutions using a reference project as the baseline')
plagiates_parser.set_defaults(func=plagiates)
plagiates_parser.add_argument('-t', '--tag-name', dest='tag_name')
plagiates_parser.add_argument('-r', '--reference', dest='reference')
plagiates_parser.add_argument('-j', '--jplag-jar', dest='jplag_jar')
args = parser.parse_args()
log.basicConfig(filename='example.log', filemode='w', level=log.DEBUG)
if 'func' in args:
args.func(gl, args)
else:
parser.print_help()

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abgabesystem/__init__.py Normal file
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from .students import Student, create_user, get_students
from gitlab.exceptions import GitlabCreateError, GitlabGetError
def create_users(gl, args):
"""Creates Gitlab users from exported students list
"""
with open(args.students, encoding='iso8859') as students_csv:
for student in Student.from_csv(students_csv):
try:
create_user(gl, student, args.ldap_base, args.ldap_provider)
except GitlabCreateError:
log.warn('Failed to create user: %s' % student.user)
def projects(gl, args):
"""Creates the projects for all course participants
"""
groups = gl.groups.list(search=args.course)
if len(groups) == 0 and groups[0].name == args.course:
log.warn('This group does not exist')
else:
group = groups[0]
with open(args.deploy_key, 'r') as key, open(args.students, encoding='iso8859') as students_csv:
key = key.read()
setup_course(gl, group, students_csv, key)
def deadline(gl, args):
"""Checks deadlines for course and triggers deadline if it is reached"""
deadline_name = args.tag_name
try:
reference = gl.projects.get(args.reference, lazy=True)
for fork in reference.forks.list():
project = gl.projects.get(fork.id, lazy=False)
try:
create_tag(project, deadline_name, 'master')
except GitlabCreateError as e:
print(e.error_message)
except GitlabGetError as e:
print(e.error_message)
def plagiates(gl, args):
"""Runs the plagiarism checker (JPlag) for the solutions with a certain tag
"""
tag = args.tag_name
reference = gl.projects.get(args.reference, lazy=True)
try:
os.mkdir('solutions')
except os.FileExistsError as e:
print(e)
os.chdir('solutions')
for fork in reference.forks.list():
project = gl.projects.get(fork.id, lazy=True)
try:
subprocess.run(
['git', 'clone', '--branch', tag, project.ssh_url_to_repo, project.path_with_namespace])
os.chdir('..')
except:
print(e.error_message)
subprocess.run(
['java', '-jar', args.jplag_jar, '-s', 'solutions', '-p', 'java', '-r', 'results', '-bc', args.reference, '-l', 'java17'])
def course(gl, args):
"""Creates the group for the course
"""
try:
group = gl.groups.create({
'name': args.course,
'path': args.course,
'visibility': 'internal',
})
log.info('Created group %s' % args.course)
except GitlabCreateError as e:
log.warning('Failed to create group %s. %s' % (args.course, e.error_message))

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from gitlab.exceptions import GitlabError, GitlabCreateError
def create_tag(project, tag, ref):
"""Creates protected tag on ref
The tag is used by the abgabesystem to mark the state of a solution at the
deadline
"""
print('Project %s. Creating tag %s' % (project.path, tag))
project.tags.create({
'tag_name': tag,
'ref': ref
})
def fork_reference(gl, reference, namespace, deploy_key):
"""Create fork of solutions for student.
"""
fork = reference.forks.create({
'namespace': namespace.id
})
project = gl.projects.get(fork.id)
project.visibility = 'private'
project.container_registry_enabled = False
project.lfs_enabled = False
deploy_key = project.keys.create({
'title': "Deploy Key",
'key': deploy_key
})
project.keys.enable(deploy_key.id)
project.save()
return project
def create_project(gl, group, user, reference, deploy_key):
"""Creates a namespace (subgroup) and forks the project with
the reference solutions into that namespace
"""
subgroup = None
try:
subgroup = gl.groups.create({
'name': user.username,
'path': user.username,
'parent_id': group.id
})
except GitlabError as e:
subgroups = group.subgroups.list(search=user.username)
if len(subgroups) > 0 and subgroup[0].name == user.username:
subgroup = subgroups[0]
subgroup = gl.groups.get(subgroup.id, lazy=True)
else:
raise(e)
try:
subgroup.members.create({
'user_id': user.id,
'access_level': gitlab.DEVELOPER_ACCESS,
})
except GitlabError:
log.warning('Failed to add student %s to its own group' % user.username)
try:
fork_reference(gl, reference, subgroup, deploy_key)
except GitlabCreateError as e:
log.warning(e.error_message)
def setup_course(gl, group, students_csv, deploy_key):
"""Sets up the internal structure for the group for use with the course
"""
solution = None
reference_project = None
try:
solution = gl.groups.create({
'name': 'solutions',
'path': 'solutions',
'parent_id': group.id,
'visibility': 'internal',
})
except GitlabCreateError as e:
log.info('Failed to create solutions group. %s' % e.error_message)
solutions = group.subgroups.list(search='solutions')
if len(solutions) > 0 and solutions[0].name == 'solutions':
solution = gl.groups.get(solutions[0].id, lazy=True)
else:
raise(GitlabCreateError(error_message='Failed to setup solutions subgroup'))
try:
reference_project = gl.projects.create({
'name': 'solutions',
'namespace_id': solution.id,
'visibility': 'internal',
})
reference_project.commits.create({
'branch': 'master',
'commit_message': 'Initial commit',
'actions': [
{
'action': 'create',
'file_path': 'README.md',
'content': 'Example solutions go here',
},
]
})
except GitlabCreateError as e:
log.info('Failed to setup group structure. %s' % e.error_message)
projects = solution.projects.list(search='solutions')
if len(projects) > 0 and projects[0].name == 'solutions':
reference_project = gl.projects.get(projects[0].id)
else:
raise(GitlabCreateError(error_message='Failed to setup reference solutions'))
if solution is None or reference_project is None:
raise(GitlabCreateError(error_message='Failed to setup course'))
for user in get_students(gl, students_csv):
create_project(gl, solution, user, reference_project, deploy_key)

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import csv
class Student():
"""A Gitlab user
Students are read from the CSV file that was exported from Stud.IP.
For each user, a dummy LDAP user is created in Gitlab.
Upon the first login Gitlab fetches the complete user using LDAP.
"""
def __init__(self, user, mail, name, group):
self.user = user
self.email = mail
self.name = name
self.group = group
def from_csv(csvfile):
"""Creates an iterable containing the users"""
reader = csv.DictReader(csvfile, delimiter=';', quotechar='"')
for line in reader:
yield Student(line['Nutzernamen'], line['E-Mail'], line['Vorname']
+ ' ' + line['Nachname'], line['Gruppe'])
def get_students(gl, students_csv):
"""Returns already existing GitLab users for students from provided CSV file that have an account.
"""
for student in Student.from_csv(students_csv):
users = gl.users.list(search=student.user)
if len(users) > 0:
yield users[0]
def create_user(gl, student, ldap_base, ldap_provider):
"""Creates a GitLab user account student.
Requires admin privileges.
"""
user = gl.users.create({
'email': student.email,
'username': student.user,
'name': student.name,
'provider': ldap_provider,
'skip_confirmation': True,
'extern_uid': 'uid=%s,%s' % (student.user, ldap_base),
'password': secrets.token_urlsafe(nbytes=32)
})
user.customattributes.set('group', student.group)
return user

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#!/usr/bin/env python3
import gitlab
import argparse
import logging
from abgabesystem.commands import create_users, projects, deadline, plagiates, course
if __name__ == '__main__':
gl = gitlab.Gitlab.from_config()
gl.auth()
log.info('authenticated')
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers(title='subcommands')
user_parser = subparsers.add_parser(
'users',
help='Creates users from LDAP')
user_parser.set_defaults(func=create_users)
user_parser.add_argument('-s', '--students', dest='students')
user_parser.add_argument('-b', '--ldap-base', dest='ldap_base')
user_parser.add_argument('-p', '--ldap-provider', dest='ldap_provider')
course_parser = subparsers.add_parser(
'courses',
help='Creates a new course')
course_parser.set_defaults(func=course)
course_parser.add_argument('-c', '--course', dest='course')
projects_parser = subparsers.add_parser(
'projects',
help='Sets up the projects and groups for a course')
projects_parser.set_defaults(func=projects)
projects_parser.add_argument('-c', '--course', dest='course')
projects_parser.add_argument('-d', '--deploy-key', dest='deploy_key')
projects_parser.add_argument('-s', '--students', dest='students')
deadline_parser = subparsers.add_parser(
'deadline',
description='Sets the tags at a deadline to permanently mark it in the version history')
deadline_parser.set_defaults(func=deadline)
deadline_parser.add_argument('-t', '--tag-name', dest='tag_name')
deadline_parser.add_argument('-r', '--reference', dest='reference')
plagiates_parser = subparsers.add_parser(
'plagiates',
description='Runs the plagiarism checker on all solutions using a reference project as the baseline')
plagiates_parser.set_defaults(func=plagiates)
plagiates_parser.add_argument('-t', '--tag-name', dest='tag_name')
plagiates_parser.add_argument('-r', '--reference', dest='reference')
plagiates_parser.add_argument('-j', '--jplag-jar', dest='jplag_jar')
args = parser.parse_args()
log.basicConfig(filename='example.log', filemode='w', level=log.DEBUG)
if 'func' in args:
args.func(gl, args)
else:
parser.print_help()

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from setuptools import setup, find_packages
setup(
name='abgabesystem',
version='1.0',
description='Set up gitlab projects for coursework and plagiarism checker.',
long_description=open('README.md').read(),
long_description_content_type="text/markdown",
url='https://ips1.ibr.cs.tu-bs.de/abgabesystem/abgabesystem',
author='Tim Schubert',
author_email='abgabesystem@timschubert.net',
packages=find_packages(),
install_requires=[
'python-gitlab',
],
scripts=['bin/abgabesystem'],
zip_safe=False,
license='GPLv3')