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a3934a211d
Replace get_ldap_uri() + LDAPClient() with new LDAPClient constructors like LDAPClient.from_realm(). Some places now use LDAPI with external bind instead of LDAP with simple bind. Although the FQDN *should* resolve to 127.0.0.1 / [::1], there is no hard guarantee. The draft https://tools.ietf.org/html/draft-west-let-localhost-be-localhost-04#section-5.1 specifies that applications must verify that the resulting IP is a loopback API. LDAPI is always local and a bit more efficient, too. The simple_bind() method also prevents the caller from sending a password over an insecure line. Signed-off-by: Christian Heimes <cheimes@redhat.com> Reviewed-By: Rob Crittenden <rcritten@redhat.com>
108 lines
3.6 KiB
Python
108 lines
3.6 KiB
Python
# Authors:
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# Pavel Zuna <pzuna@redhat.com>
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#
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# Copyright (C) 2009 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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Password migration script
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"""
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from __future__ import absolute_import
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import cgi
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import errno
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import logging
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import os.path
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from ipaplatform.paths import paths
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from ipapython.dn import DN
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from ipapython import ipaldap
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from ipalib import errors, create_api
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logger = logging.getLogger(os.path.basename(__file__))
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def bad_request(start_response):
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"""
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Return a 400 Bad Request error.
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"""
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status = '400 Bad Request'
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response_headers = []
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response = b''
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start_response(status, response_headers)
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return [response]
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def wsgi_redirect(start_response, loc):
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start_response('302 Found', [('Location', loc)])
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return []
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def bind(ldap_uri, base_dn, username, password):
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if not base_dn:
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logger.error('migration unable to get base dn')
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raise IOError(errno.EIO, 'Cannot get Base DN')
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bind_dn = DN(('uid', username), ('cn', 'users'), ('cn', 'accounts'), base_dn)
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# ldap_uri should be ldapi:// in all common cases. Enforce start_tls just
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# in case it's a plain LDAP connection.
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start_tls = ldap_uri.startswith('ldap://')
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try:
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conn = ipaldap.LDAPClient(ldap_uri, start_tls=start_tls)
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conn.simple_bind(bind_dn, password)
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except (errors.ACIError, errors.DatabaseError, errors.NotFound) as e:
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logger.error(
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'migration invalid credentials for %s: %s', bind_dn, e)
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raise IOError(
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errno.EPERM, 'Invalid LDAP credentials for user %s' % username)
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except Exception as e:
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logger.error('migration bind failed: %s', e)
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raise IOError(errno.EIO, 'Bind error')
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finally:
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conn.unbind()
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def application(environ, start_response):
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if environ.get('REQUEST_METHOD', None) != 'POST':
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return wsgi_redirect(start_response, 'index.html')
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content_type = environ.get('CONTENT_TYPE', '').lower()
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if not content_type.startswith('application/x-www-form-urlencoded'):
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return bad_request(start_response)
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form_data = cgi.FieldStorage(fp=environ['wsgi.input'], environ=environ)
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if 'username' not in form_data or 'password' not in form_data:
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return bad_request(start_response)
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status = '200 Success'
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response_headers = []
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result = 'error'
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response = b''
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# API object only for configuration, finalize() not needed
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api = create_api(mode=None)
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api.bootstrap(context='server', confdir=paths.ETC_IPA, in_server=True)
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try:
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bind(api.env.ldap_uri, api.env.basedn,
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form_data['username'].value, form_data['password'].value)
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except IOError as err:
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if err.errno == errno.EPERM:
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result = 'invalid-password'
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if err.errno == errno.EIO:
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result = 'migration-error'
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else:
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result = 'ok'
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response_headers.append(('X-IPA-Migrate-Result', result))
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start_response(status, response_headers)
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return [response]
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