From 24fd1fe6c62b7a9fc347794fde043285da272f5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Isma=C3=ABl=20Bouya?= <ismael.bouya@normalesup.org>
Date: Thu, 13 Dec 2018 21:25:24 +0100
Subject: Initial commit published for NUR

---
 pkgs/webapps/mediagoblin/ldap_fix.py | 93 ++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 pkgs/webapps/mediagoblin/ldap_fix.py

(limited to 'pkgs/webapps/mediagoblin/ldap_fix.py')

diff --git a/pkgs/webapps/mediagoblin/ldap_fix.py b/pkgs/webapps/mediagoblin/ldap_fix.py
new file mode 100644
index 00000000..10cc375c
--- /dev/null
+++ b/pkgs/webapps/mediagoblin/ldap_fix.py
@@ -0,0 +1,93 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+from ldap3 import Server, Connection, SUBTREE
+from ldap3.core.exceptions import LDAPException
+import logging
+
+import six
+
+from mediagoblin.tools import pluginapi
+
+_log = logging.getLogger(__name__)
+
+
+class LDAP(object):
+    def __init__(self):
+        self.ldap_settings = pluginapi.get_config('mediagoblin.plugins.ldap')
+
+    def _connect(self, server):
+        _log.info('Connecting to {0}.'.format(server['LDAP_SERVER_URI']))
+        self.server = Server(server['LDAP_SERVER_URI'])
+
+        if 'LDAP_START_TLS' in server and server['LDAP_START_TLS'] == 'true':
+            _log.info('Initiating TLS')
+            self.server.start_tls()
+
+    def _manager_auth(self, settings, username, password):
+        conn = Connection(self.server,
+                settings['LDAP_BIND_DN'],
+                settings['LDAP_BIND_PW'],
+                auto_bind=True)
+        found = conn.search(
+                search_base=settings['LDAP_SEARCH_BASE'],
+                search_filter=settings['LDAP_SEARCH_FILTER'].format(username=username),
+                search_scope=SUBTREE,
+                attributes=[settings['EMAIL_SEARCH_FIELD']])
+        if (not found) or len(conn.entries) > 1:
+            return False, None
+
+        user = conn.entries[0]
+        user_dn = user.entry_dn
+        try:
+            email = user.entry_attributes_as_dict[settings['EMAIL_SEARCH_FIELD']][0]
+        except KeyError:
+            email = None
+
+        Connection(self.server, user_dn, password, auto_bind=True)
+
+        return username, email
+
+    def _direct_auth(self, settings, username, password):
+        user_dn = settings['LDAP_USER_DN_TEMPLATE'].format(username=username)
+        conn = Connection(self.server, user_dn, password, auto_bind=True)
+        email_found = conn.search(
+                search_base=settings['LDAP_SEARCH_BASE'],
+                search_filter='uid={0}'.format(username),
+                search_scope=SUBTREE,
+                attributes=[settings['EMAIL_SEARCH_FIELD']])
+
+        if email_found:
+            try:
+                email = conn.entries[0].entry_attributes_as_dict[settings['EMAIL_SEARCH_FIELD']][0]
+            except KeyError:
+                email = None
+
+        return username, email
+
+    def login(self, username, password):
+        for k, v in six.iteritems(self.ldap_settings):
+            try:
+                self._connect(v)
+
+                if 'LDAP_BIND_DN' in v:
+                    return self._manager_auth(v, username, password)
+                else:
+                    return self._direct_auth(v, username, password)
+
+            except LDAPException as e:
+                _log.info(e)
+
+        return False, None
-- 
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