240 lines
7.6 KiB
Python
Executable file
240 lines
7.6 KiB
Python
Executable file
#!/usr/bin/env python
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from traceback import format_exc
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import ldap
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import ldap.modlist
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import ldap.sasl
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DOCUMENTATION = """
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---
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module: ldap_upsert
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short_description: Insert or update an LDAP entry.
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description:
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- Insert or update an LDAP entry. Existing entries with matching
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C(dn) will have their attributes updated. Otherwise a new entry
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will be created with the given attributes. This module cannot
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delete entries or remove attributes, see M(ldap_entry) and
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M(ldap_attr), respectively.
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notes: []
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version_added: null
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author: Peter Sagerson
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requirements:
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- python-ldap
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options:
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dn:
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required: true
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description:
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- The DN of the entry to insert or update.
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objectClass:
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required: true
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description:
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- Must be a list of objectClass values to use when
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creating the entry. It can either be a string containing
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a comma-separated list of values, or an actual list of
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strings. When updating, these values are not used.
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'...':
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required: false
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description:
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- All additional arguments are taken to be LDAP attribute
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names like C(objectClass), with similar lists of values.
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If the entry exists, these attributes will be updated if
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necessary. Otherwise the newly created entry will have
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these attributes.
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server_uri:
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required: false
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default: ldapi:///
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description:
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- A URI to the LDAP server. The default value lets the underlying
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LDAP client library look for a UNIX domain socket in its default
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location.
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start_tls:
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required: false
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default: false
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description:
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- If true, we'll use the START_TLS LDAP extension.
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bind_dn:
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required: false
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description:
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- A DN to bind with. If this is omitted, we'll try a SASL bind with
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the EXTERNAL mechanism. If this is blank, we'll use an anonymous
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bind.
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bind_pw:
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required: false
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description:
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- The password to use with C(bind_dn).
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"""
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EXAMPLES = """
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# Make sure we have a parent entry for users.
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- ldap_entry: dn='ou=users,dc=example,dc=com' objectClass=organizationalUnit description="My Org Unit"
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sudo: true
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# Make sure we have an admin user.
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- ldap_entry:
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dn: 'cn=admin,dc=example,dc=com'
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objectClass: simpleSecurityObject,organizationalRole
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description: An LDAP administrator
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userPassword: '{SSHA}pedsA5Y9wHbZ5R90pRdxTEZmn6qvPdzm'
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sudo: true
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"""
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def main():
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module = AnsibleModule(
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argument_spec={
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'dn': dict(required=True),
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'server_uri': dict(default='ldapi:///'),
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'start_tls': dict(default='false', choices=(BOOLEANS+['True', True, 'False', False])),
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'bind_dn': dict(default=None),
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'bind_pw': dict(default='', no_log=True),
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},
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check_invalid_arguments=False,
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supports_check_mode=False,
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)
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try:
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LdapUpsert(module).main()
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except ldap.LDAPError, e:
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module.fail_json(msg=str(e), exc=format_exc())
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class LdapUpsert(object):
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def __init__(self, module):
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self.module = module
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self.server_uri = self.module.params['server_uri']
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self.start_tls = self._boolean_param('start_tls')
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self.bind_dn = self._utf8_param('bind_dn')
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self.bind_pw = self._utf8_param('bind_pw')
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self.dn = self._utf8_param('dn')
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self._load_attrs()
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if 'objectClass' not in self.attrs:
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self.module.fail_json(msg="At least one objectClass must be provided")
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def _boolean_param(self, name):
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return self.module.boolean(self.module.params[name])
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def _utf8_param(self, name):
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return self._force_utf8(self.module.params[name])
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def _load_attr_values(self, name, raw):
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if isinstance(raw, basestring):
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values = raw.split(',')
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else:
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values = raw
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if not (isinstance(values, list) and all(isinstance(value, basestring) for value in values)):
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self.module.fail_json(msg="{} must be a string or list of strings.".format(name))
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return map(self._force_utf8, values)
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def _force_utf8(self, value):
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""" If value is unicode, encode to utf-8. """
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if isinstance(value, unicode):
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value = value.encode('utf-8')
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return value
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def _load_attrs(self):
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self.attrs = {}
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for name, raw in self.module.params.iteritems():
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if name not in self.module.argument_spec:
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self.attrs[name] = self._load_attr_values(name, raw)
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def main(self):
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if self.entry_exists():
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results = self.update_entry()
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self.module.exit_json(**results)
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else:
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insert_result = self.insert_entry()
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self.module.exit_json(changed=True, results=[insert_result])
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def entry_exists(self):
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try:
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results = self.connection.search_s(self.dn, ldap.SCOPE_BASE)
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for result in results:
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if result[0] == self.dn:
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return True
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except ldap.NO_SUCH_OBJECT:
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return False
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def insert_entry(self):
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modlist = ldap.modlist.addModlist(self.attrs)
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result = self.connection.add_s(self.dn, modlist)
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return result
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def update_entry(self):
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results = []
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for attr, value in self.attrs.iteritems():
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if attr == 'objectClass': continue
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value = self._extract_value(value)
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check = self._attribute_value_check(attr, value)
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if check is False:
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op = ldap.MOD_REPLACE
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elif check is None:
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op = ldap.MOD_ADD
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else:
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op = None # Nothing to see here...
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if op is not None:
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result = self.connection.modify_s(self.dn, [(op, attr, value)])
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results.append(result)
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if len(results) == 0:
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return dict(changed=False)
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else:
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return dict(changed=True, results=results)
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def _attribute_value_check(self, attr, value):
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try:
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return bool(self.connection.compare_s(self.dn, attr, value))
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except ldap.NO_SUCH_ATTRIBUTE, ldap.UNDEFINED_TYPE:
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return None
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def _extract_value(self, values):
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if isinstance(values, basestring):
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if values == '':
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values = []
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else:
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values = [values]
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if not (isinstance(values, list) and all(isinstance(value, basestring) for value in values)):
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self.module.fail_json(msg="Attribute values must be strings or lists of strings.")
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values = map(self._force_utf8, values)
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if len(values) == 1:
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return values[0]
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else:
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return values
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#
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# LDAP Connection
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#
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_connection = None
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@property
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def connection(self):
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""" An authenticated connection to the LDAP server (cached). """
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if self._connection is None:
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self._connection = self._connect_to_ldap()
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return self._connection
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def _connect_to_ldap(self):
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connection = ldap.initialize(self.server_uri)
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if self.start_tls:
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connection.start_tls_s()
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if self.bind_dn is not None:
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connection.simple_bind_s(self.bind_dn, self.bind_pw)
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else:
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connection.sasl_interactive_bind_s('', ldap.sasl.external())
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return connection
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from ansible.module_utils.basic import * # noqa
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main()
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