3 # Copyright (C) 2008-2013 W. Trevor King
4 # Copyright (C) 2012-2013 Wade Berrier
5 # Copyright (C) 2012 Niels de Vos
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 """LDAP address searches for Mutt.
22 Add :file:`mutt-ldap.py` to your ``PATH`` and add the following line
23 to your :file:`.muttrc`::
25 set query_command = "mutt-ldap.py '%s'"
27 Search for addresses with `^t`, optionally after typing part of the
28 name. Configure your connection by creating :file:`~/.mutt-ldap.rc`
29 contaning something like::
32 server = myserver.example.net
33 basedn = ou=people,dc=example,dc=net
35 See the `CONFIG` options for other available settings.
38 import ConfigParser as _configparser
39 import hashlib as _hashlib
40 import os.path as _os_path
41 import pickle as _pickle
44 import ldap.sasl as _ldap_sasl
47 CONFIG = _configparser.SafeConfigParser()
48 CONFIG.add_section('connection')
49 CONFIG.set('connection', 'server', 'domaincontroller.yourdomain.com')
50 CONFIG.set('connection', 'port', '389') # set to 636 for default over SSL
51 CONFIG.set('connection', 'ssl', 'no')
52 CONFIG.set('connection', 'starttls', 'no')
53 CONFIG.set('connection', 'basedn', 'ou=x co.,dc=example,dc=net')
54 CONFIG.add_section('auth')
55 CONFIG.set('auth', 'user', '')
56 CONFIG.set('auth', 'password', '')
57 CONFIG.set('auth', 'gssapi', 'no')
58 CONFIG.add_section('query')
59 CONFIG.set('query', 'filter', '') # only match entries according to this filter
60 CONFIG.set('query', 'search-fields', 'cn displayName uid mail') # fields to wildcard search
61 CONFIG.add_section('results')
62 CONFIG.set('results', 'optional-column', '') # mutt can display one optional column
63 CONFIG.add_section('cache')
64 CONFIG.set('cache', 'enable', 'yes') # enable caching by default
65 CONFIG.set('cache', 'path', '~/.mutt-ldap.cache') # cache results here
66 CONFIG.set('cache', 'fields', '') # fields to cache (if empty, setup in the main block)
67 #CONFIG.set('cache', 'longevity-days', '14') # TODO: cache results for 14 days by default
68 CONFIG.add_section('system')
69 # HACK: Python 2.x support, see http://bugs.python.org/issue2128
70 CONFIG.set('system', 'argv-encoding', 'utf-8')
72 CONFIG.read(_os_path.expanduser('~/.mutt-ldap.rc'))
75 class LDAPConnection (object):
76 """Wrap an LDAP connection supporting the 'with' statement
78 See PEP 343 for details.
80 def __init__(self, config=None):
84 self.connection = None
90 def __exit__(self, type, value, traceback):
94 if self.connection is not None:
95 raise RuntimeError('already connected to the LDAP server')
97 if self.config.getboolean('connection', 'ssl'):
99 url = '{0}://{1}:{2}'.format(
101 self.config.get('connection', 'server'),
102 self.config.get('connection', 'port'))
103 self.connection = _ldap.initialize(url)
104 if (self.config.getboolean('connection', 'starttls') and
106 self.connection.start_tls_s()
107 if self.config.getboolean('auth', 'gssapi'):
108 sasl = _ldap_sasl.gssapi()
109 self.connection.sasl_interactive_bind_s('', sasl)
111 self.connection.bind(
112 self.config.get('auth', 'user'),
113 self.config.get('auth', 'password'),
117 if self.connection is None:
118 raise RuntimeError('not connected to an LDAP server')
119 self.connection.unbind()
120 self.connection = None
122 def search(self, query):
123 if self.connection is None:
124 raise RuntimeError('connect to the LDAP server before searching')
128 fields = self.config.get('query', 'search-fields').split()
129 filterstr = u'(|{0})'.format(
130 u' '.join([u'({0}=*{1}{2})'.format(field, query, post) for
132 query_filter = self.config.get('query', 'filter')
134 filterstr = u'(&({0}){1})'.format(query_filter, filterstr)
135 msg_id = self.connection.search(
136 self.config.get('connection', 'basedn'),
138 filterstr.encode('utf-8'))
140 while res_type != _ldap.RES_SEARCH_RESULT:
142 res_type, res_data = self.connection.result(
143 msg_id, all=False, timeout=0)
144 except _ldap.ADMINLIMIT_EXCEEDED:
145 #print "Partial results"
148 # use `yield from res_data` in Python >= 3.3, see PEP 380
149 for entry in res_data:
153 class CachedLDAPConnection (LDAPConnection):
156 super(CachedLDAPConnection, self).connect()
159 super(CachedLDAPConnection, self).unbind()
162 def search(self, query):
163 cache_hit, entries = self._cache_lookup(query=query)
165 # use `yield from res_data` in Python >= 3.3, see PEP 380
166 for entry in entries:
170 keys = self.config.get('cache', 'fields').split()
171 for entry in super(CachedLDAPConnection, self).search(query=query):
173 # use dict comprehensions in Python >= 2.7, see PEP 274
175 [(key, data[key]) for key in keys if key in data])
176 entries.append((cn, cached_data))
178 self._cache_store(query=query, entries=entries)
180 def _load_cache(self):
181 path = _os_path.expanduser(self.config.get('cache', 'path'))
183 self._cache = _pickle.load(open(path, 'rb'))
184 except IOError: # probably "No such file"
186 except (ValueError, KeyError): # probably a corrupt cache file
189 def _save_cache(self):
190 path = _os_path.expanduser(self.config.get('cache', 'path'))
191 _pickle.dump(self._cache, open(path, 'wb'))
193 def _cache_store(self, query, entries):
194 self._cache[self._cache_key(query=query)] = entries
196 def _cache_lookup(self, query):
197 entries = self._cache.get(self._cache_key(query=query), None)
199 return (False, entries)
200 return (True, entries)
202 def _cache_key(self, query):
203 return (self._config_id(), query)
205 def _config_id(self):
206 """Return a unique ID representing the current configuration
208 config_string = _pickle.dumps(self.config)
209 return _hashlib.sha1(config_string).hexdigest()
212 def format_columns(address, data):
213 yield unicode(address, 'utf-8')
214 yield unicode(data.get('displayName', data['cn'])[-1], 'utf-8')
215 optional_column = CONFIG.get('results', 'optional-column')
216 if optional_column in data:
217 yield unicode(data[optional_column][-1], 'utf-8')
219 def format_entry(entry):
222 for m in data['mail']:
223 # http://www.mutt.org/doc/manual/manual-4.html#ss4.5
224 # Describes the format mutt expects: address\tname
225 yield u'\t'.join(format_columns(m, data))
228 if __name__ == '__main__':
231 # HACK: convert sys.argv to Unicode (not needed in Python 3)
232 argv_encoding = CONFIG.get('system', 'argv-encoding')
233 sys.argv = [unicode(arg, argv_encoding) for arg in sys.argv]
235 if len(sys.argv) < 2:
236 sys.stderr.write(u'{0}: no search string given\n'.format(sys.argv[0]))
239 query = u' '.join(sys.argv[1:])
241 if CONFIG.getboolean('cache', 'enable'):
242 connection_class = CachedLDAPConnection
243 if not CONFIG.get('cache', 'fields'):
244 # setup a reasonable default
245 fields = ['mail', 'cn', 'displayName'] # used by format_entry()
246 optional_column = CONFIG.get('results', 'optional-column')
248 fields.append(optional_column)
249 CONFIG.set('cache', 'fields', ' '.join(fields))
251 connection_class = LDAPConnection
254 with connection_class() as connection:
255 entries = connection.search(query=query)
256 for entry in entries:
257 addresses.extend(format_entry(entry))
258 print(u'{0} addresses found:'.format(len(addresses)))
259 print(u'\n'.join(addresses))