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
45 import ldap.sasl as _ldap_sasl
48 CONFIG = _configparser.SafeConfigParser()
49 CONFIG.add_section('connection')
50 CONFIG.set('connection', 'server', 'domaincontroller.yourdomain.com')
51 CONFIG.set('connection', 'port', '389') # set to 636 for default over SSL
52 CONFIG.set('connection', 'ssl', 'no')
53 CONFIG.set('connection', 'starttls', 'no')
54 CONFIG.set('connection', 'basedn', 'ou=x co.,dc=example,dc=net')
55 CONFIG.add_section('auth')
56 CONFIG.set('auth', 'user', '')
57 CONFIG.set('auth', 'password', '')
58 CONFIG.set('auth', 'gssapi', 'no')
59 CONFIG.add_section('query')
60 CONFIG.set('query', 'filter', '') # only match entries according to this filter
61 CONFIG.set('query', 'search-fields', 'cn displayName uid mail') # fields to wildcard search
62 CONFIG.add_section('results')
63 CONFIG.set('results', 'optional-column', '') # mutt can display one optional column
64 CONFIG.add_section('cache')
65 CONFIG.set('cache', 'enable', 'yes') # enable caching by default
66 CONFIG.set('cache', 'path', '~/.mutt-ldap.cache') # cache results here
67 CONFIG.set('cache', 'fields', '') # fields to cache (if empty, setup in the main block)
68 CONFIG.set('cache', 'longevity-days', '14') # TODO: cache results for 14 days by default
69 CONFIG.add_section('system')
70 # HACK: Python 2.x support, see http://bugs.python.org/issue2128
71 CONFIG.set('system', 'argv-encoding', 'utf-8')
73 CONFIG.read(_os_path.expanduser('~/.mutt-ldap.rc'))
76 class LDAPConnection (object):
77 """Wrap an LDAP connection supporting the 'with' statement
79 See PEP 343 for details.
81 def __init__(self, config=None):
85 self.connection = None
91 def __exit__(self, type, value, traceback):
95 if self.connection is not None:
96 raise RuntimeError('already connected to the LDAP server')
98 if self.config.getboolean('connection', 'ssl'):
100 url = '{0}://{1}:{2}'.format(
102 self.config.get('connection', 'server'),
103 self.config.get('connection', 'port'))
104 self.connection = _ldap.initialize(url)
105 if (self.config.getboolean('connection', 'starttls') and
107 self.connection.start_tls_s()
108 if self.config.getboolean('auth', 'gssapi'):
109 sasl = _ldap_sasl.gssapi()
110 self.connection.sasl_interactive_bind_s('', sasl)
112 self.connection.bind(
113 self.config.get('auth', 'user'),
114 self.config.get('auth', 'password'),
118 if self.connection is None:
119 raise RuntimeError('not connected to an LDAP server')
120 self.connection.unbind()
121 self.connection = None
123 def search(self, query):
124 if self.connection is None:
125 raise RuntimeError('connect to the LDAP server before searching')
129 fields = self.config.get('query', 'search-fields').split()
130 filterstr = u'(|{0})'.format(
131 u' '.join([u'({0}=*{1}{2})'.format(field, query, post) for
133 query_filter = self.config.get('query', 'filter')
135 filterstr = u'(&({0}){1})'.format(query_filter, filterstr)
136 msg_id = self.connection.search(
137 self.config.get('connection', 'basedn'),
139 filterstr.encode('utf-8'))
141 while res_type != _ldap.RES_SEARCH_RESULT:
143 res_type, res_data = self.connection.result(
144 msg_id, all=False, timeout=0)
145 except _ldap.ADMINLIMIT_EXCEEDED:
146 #print "Partial results"
149 # use `yield from res_data` in Python >= 3.3, see PEP 380
150 for entry in res_data:
154 class CachedLDAPConnection (LDAPConnection):
157 super(CachedLDAPConnection, self).connect()
160 super(CachedLDAPConnection, self).unbind()
163 def search(self, query):
164 cache_hit, entries = self._cache_lookup(query=query)
166 # use `yield from res_data` in Python >= 3.3, see PEP 380
167 for entry in entries:
171 keys = self.config.get('cache', 'fields').split()
172 for entry in super(CachedLDAPConnection, self).search(query=query):
174 # use dict comprehensions in Python >= 2.7, see PEP 274
176 [(key, data[key]) for key in keys if key in data])
177 entries.append((cn, cached_data))
179 self._cache_store(query=query, entries=entries)
181 def _load_cache(self):
182 path = _os_path.expanduser(self.config.get('cache', 'path'))
184 self._cache = _pickle.load(open(path, 'rb'))
185 except IOError: # probably "No such file"
187 except (ValueError, KeyError): # probably a corrupt cache file
191 def _save_cache(self):
192 path = _os_path.expanduser(self.config.get('cache', 'path'))
193 _pickle.dump(self._cache, open(path, 'wb'))
195 def _cache_store(self, query, entries):
196 self._cache[self._cache_key(query=query)] = {
198 'time': _time.time(),
201 def _cache_lookup(self, query):
202 data = self._cache.get(self._cache_key(query=query), None)
205 return (True, data['entries'])
207 def _cache_key(self, query):
208 return (self._config_id(), query)
210 def _config_id(self):
211 """Return a unique ID representing the current configuration
213 config_string = _pickle.dumps(self.config)
214 return _hashlib.sha1(config_string).hexdigest()
216 def _cull_cache(self):
217 cull_days = self.config.getint('cache', 'longevity-days')
218 day_seconds = 24*60*60
219 expire = _time.time() - cull_days * day_seconds
220 for key in list(self._cache.keys()): # cull the cache
221 if self._cache[key]['time'] < expire:
225 def format_columns(address, data):
226 yield unicode(address, 'utf-8')
227 yield unicode(data.get('displayName', data['cn'])[-1], 'utf-8')
228 optional_column = CONFIG.get('results', 'optional-column')
229 if optional_column in data:
230 yield unicode(data[optional_column][-1], 'utf-8')
232 def format_entry(entry):
235 for m in data['mail']:
236 # http://www.mutt.org/doc/manual/manual-4.html#ss4.5
237 # Describes the format mutt expects: address\tname
238 yield u'\t'.join(format_columns(m, data))
241 if __name__ == '__main__':
244 # HACK: convert sys.argv to Unicode (not needed in Python 3)
245 argv_encoding = CONFIG.get('system', 'argv-encoding')
246 sys.argv = [unicode(arg, argv_encoding) for arg in sys.argv]
248 if len(sys.argv) < 2:
249 sys.stderr.write(u'{0}: no search string given\n'.format(sys.argv[0]))
252 query = u' '.join(sys.argv[1:])
254 if CONFIG.getboolean('cache', 'enable'):
255 connection_class = CachedLDAPConnection
256 if not CONFIG.get('cache', 'fields'):
257 # setup a reasonable default
258 fields = ['mail', 'cn', 'displayName'] # used by format_entry()
259 optional_column = CONFIG.get('results', 'optional-column')
261 fields.append(optional_column)
262 CONFIG.set('cache', 'fields', ' '.join(fields))
264 connection_class = LDAPConnection
267 with connection_class() as connection:
268 entries = connection.search(query=query)
269 for entry in entries:
270 addresses.extend(format_entry(entry))
271 print(u'{0} addresses found:'.format(len(addresses)))
272 print(u'\n'.join(addresses))