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gitlab-ldap-sync.py
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gitlab-ldap-sync.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import gitlab
import sys
import json
import ldap
import ldap.asyncsearch
import logging
if __name__ == "__main__":
print('Initializing gitlab-ldap-sync.')
config = None
with open('config.json') as f:
config = json.load(f)
if config is not None:
print('Done.')
print('Updating logger configuration')
if not config['gitlab']['group_visibility']:
config['gitlab']['group_visibility'] = 'private'
log_option = {
'format': '[%(asctime)s] [%(levelname)s] %(message)s'
}
if config['log']:
log_option['filename'] = config['log']
if config['log_level']:
log_option['level'] = getattr(logging, str(config['log_level']).upper())
logging.basicConfig(**log_option)
print('Done.')
logging.info('Connecting to GitLab')
if config['gitlab']['api']:
gl = None
if not config['gitlab']['private_token'] and not config['gitlab']['oauth_token']:
logging.error('You should set at least one auth information in config.json, aborting.')
elif config['gitlab']['private_token'] and config['gitlab']['oauth_token']:
logging.error('You should set at most one auth information in config.json, aborting.')
else:
if config['gitlab']['private_token']:
gl = gitlab.Gitlab(url=config['gitlab']['api'], private_token=config['gitlab']['private_token'], ssl_verify=config['gitlab']['ssl_verify'])
elif config['gitlab']['oauth_token']:
gl = gitlab.Gitlab(url=config['gitlab']['api'], oauth_token=config['gitlab']['oauth_token'], ssl_verify=config['gitlab']['ssl_verify'])
else:
gl = None
if gl is None:
logging.error('Cannot create gitlab object, aborting.')
sys.exit(1)
gl.auth()
logging.info('Done.')
logging.info('Connecting to LDAP')
if not config['ldap']['url']:
logging.error('You should configure LDAP in config.json')
sys.exit(1)
try:
l = ldap.initialize(uri=config['ldap']['url'])
l.simple_bind_s(config['ldap']['bind_dn'], config['ldap']['password'])
except:
logging.error('Error while connecting')
sys.exit(1)
logging.info('Done.')
logging.info('Getting all groups from GitLab.')
gitlab_groups = []
gitlab_groups_names = []
for group in gl.groups.list(all=True):
gitlab_groups_names.append(group.full_name)
gitlab_group = {"name": group.full_name, "members": []}
for member in group.members.list(all=True):
user = gl.users.get(member.id)
gitlab_group['members'].append({
'username': user.username,
'name': user.name,
'identities': user.identities[0]['extern_uid'],
'email': user.email
})
gitlab_groups.append(gitlab_group)
logging.info('Done.')
logging.info('Getting all groups from LDAP.')
ldap_groups = []
ldap_groups_names = []
if not config['ldap']['group_attribute'] and not config['ldap']['group_prefix']:
filterstr = '(objectClass=group)'
else:
if config['ldap']['group_attribute'] and config['ldap']['group_prefix']:
logging.error('You should set "group_attribute" or "group_prefix" but not both in config.json')
sys.exit(1)
else:
if config['ldap']['group_attribute']:
filterstr = '(&(objectClass=group)(%s=gitlab_sync))' % config['ldap']['group_attribute']
if config['ldap']['group_prefix']:
filterstr = '(&(objectClass=group)(cn=%s*))' % config['ldap']['group_prefix']
attrlist=['name', 'member']
if config['gitlab']['add_description']:
attrlist.append('description')
for group_dn, group_data in l.search_s(base=config['ldap']['groups_base_dn'],
scope=ldap.SCOPE_SUBTREE,
filterstr=filterstr,
attrlist=attrlist):
ldap_groups_names.append(group_data['name'][0].decode())
ldap_group = {"name": group_data['name'][0].decode(), "members": []}
if config['gitlab']['add_description'] and 'description' in group_data:
ldap_group.update({"description": group_data['description'][0].decode()})
if 'member' in group_data:
for member in group_data['member']:
member = member.decode()
for user_dn, user_data in l.search_s(base=config['ldap']['users_base_dn'],
scope=ldap.SCOPE_SUBTREE,
filterstr='(&(|(distinguishedName=%s)(dn=%s))(objectClass=user)%s)' % (
member, member, config['ldap']['user_filter']),
attrlist=['uid', 'sAMAccountName', 'mail', 'displayName']):
if 'sAMAccountName' in user_data:
username = user_data['sAMAccountName'][0].decode()
else:
username = user_data['uid'][0].decode()
ldap_group['members'].append({
'username': username,
'name': user_data['displayName'][0].decode(),
'identities': str(member).lower(),
'email': user_data['mail'][0].decode()
})
ldap_groups.append(ldap_group)
logging.info('Done.')
logging.info('Groups currently in GitLab : %s' % str.join(', ', gitlab_groups_names))
logging.info('Groups currently in LDAP : %s' % str.join(', ', ldap_groups_names))
logging.info('Syncing Groups from LDAP.')
for l_group in ldap_groups:
logging.info('Working on group %s ...' % l_group['name'])
if l_group['name'] not in gitlab_groups_names:
logging.info('|- Group not existing in GitLab, creating.')
gitlab_group = {'name': l_group['name'], 'path': l_group['name'], 'visibility': config['gitlab']['group_visibility']}
if config['gitlab']['add_description'] and 'description' in l_group:
gitlab_group.update({'description': l_group['description']})
try:
g = gl.groups.create(gitlab_group)
g.save()
gitlab_groups.append({'members': [], 'name': l_group['name']})
gitlab_groups_names.append(l_group['name'])
except Exception as e:
logging.error('Creating group %s failed: %s' % (l_group['name'], e))
# Skip next steps due to group could not be created
continue
else:
logging.info('|- Group already exist in GitLab, skiping creation.')
logging.info('|- Working on group\'s members.')
for l_member in l_group['members']:
if l_member not in gitlab_groups[gitlab_groups_names.index(l_group['name'])]['members']:
logging.info('| |- User %s is member in LDAP but not in GitLab, updating GitLab.' % l_member['name'])
g = [group for group in gl.groups.list(search=l_group['name']) if group.name == l_group['name']][0]
g.save()
u = gl.users.list(username=l_member['username'])
if len(u) > 0:
u = u[0]
if u not in g.members.list(all=True):
g.members.create({'user_id': u.id, 'access_level': gitlab.DEVELOPER_ACCESS})
g.save()
else:
if config['gitlab']['create_user']:
logging.info('| |- User %s does not exist in gitlab, creating.' % l_member['name'])
try:
u = gl.users.create({
'email': l_member['email'],
'name': l_member['name'],
'username': l_member['username'],
'extern_uid': l_member['identities'],
'provider': config['gitlab']['ldap_provider'],
'password': 'pouetpouet'
})
except gitlab.exceptions as e:
if e.response_code == '409':
u = gl.users.create({
'email': l_member['email'].replace('@', '+gl-%s@' % l_member['username']),
'name': l_member['name'],
'username': l_member['username'],
'extern_uid': l_member['identities'],
'provider': config['gitlab']['ldap_provider'],
'password': 'pouetpouet'
})
g.members.create({'user_id': u.id, 'access_level': gitlab.DEVELOPER_ACCESS})
g.save()
else:
logging.info('| |- User %s does not exist in gitlab, skipping.' % l_member['name'])
else:
logging.info('| |- User %s already in gitlab group, skipping.' % l_member['name'])
logging.info('Done.')
logging.info('Done.')
logging.info('Cleaning membership of LDAP Groups')
for g_group in gitlab_groups:
logging.info('Working on group %s ...' % g_group['name'])
if g_group['name'] in ldap_groups_names:
logging.info('|- Working on group\'s members.')
for g_member in g_group['members']:
if g_member not in ldap_groups[ldap_groups_names.index(g_group['name'])]['members']:
if str(config['ldap']['users_base_dn']).lower() not in g_member['identities']:
logging.info('| |- Not a LDAP user, skipping.')
else:
logging.info('| |- User %s no longer in LDAP Group, removing.' % g_member['name'])
g = [group for group in gl.groups.list(search=g_group['name']) if group.name == g_group['name']][0]
u = gl.users.list(username=g_member['username'])[0]
if u is not None:
g.members.delete(u.id)
g.save()
else:
logging.info('| |- User %s still in LDAP Group, skipping.' % g_member['name'])
logging.info('|- Done.')
else:
logging.info('|- Not a LDAP group, skipping.')
logging.info('Done')
else:
logging.error('GitLab API is empty, aborting.')
sys.exit(1)
else:
print('Could not load config.json, check if the file is present.')
print('Aborting.')
sys.exit(1)