Merge remote-tracking branch 'ldap/master' into Develop

# Conflicts:
#	cps/server.py
#	cps/templates/config_edit.html
#	cps/ub.py
#	cps/updater.py
#	cps/web.py
#	optional-requirements-ldap.txt
#	setup.cfg

cps/ldap.py

@@ -0,0 +1,61 @@
+# -*- coding: utf-8 -*-
+
+#   This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
+#     Copyright (C) 2019 Krakinou
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU 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 General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+import base64
+
+try:
+   from flask_simpleldap import LDAP, LDAPException
+   ldap_support = True
+except ImportError:
+   ldap_support = False
+
+from . import config, logger
+
+log = logger.create()
+
+class Ldap():
+
+    def __init__(self):
+        return
+
+    def init_app(self, app):
+        if ldap_support and config.config_login_type == 1:
+            app.config['LDAP_HOST'] = config.config_ldap_provider_url
+            app.config['LDAP_PORT'] = config.config_ldap_port
+            app.config['LDAP_SCHEMA'] = config.config_ldap_schema
+            app.config['LDAP_USERNAME'] = config.config_ldap_user_object.replace('%s', config.config_ldap_serv_username)\
+                                          + ',' + config.config_ldap_dn
+            app.config['LDAP_PASSWORD'] = base64.b64decode(config.config_ldap_serv_password)
+            if config.config_ldap_use_ssl:
+                app.config['LDAP_USE_SSL'] = True
+            if config.config_ldap_use_tls:
+                app.config['LDAP_USE_TLS'] = True
+            app.config['LDAP_REQUIRE_CERT'] = config.config_ldap_require_cert
+            if config.config_ldap_require_cert:
+                app.config['LDAP_CERT_PATH'] = config.config_ldap_cert_path
+            app.config['LDAP_BASE_DN'] = config.config_ldap_dn
+            app.config['LDAP_USER_OBJECT_FILTER'] = config.config_ldap_user_object
+            if config.config_ldap_openldap:
+                app.config['LDAP_OPENLDAP'] = True
+
+        #    app.config['LDAP_BASE_DN'] = 'ou=users,dc=yunohost,dc=org'
+        #    app.config['LDAP_USER_OBJECT_FILTER'] = '(uid=%s)'
+            # ldap = LDAP(app)
+
+        elif config.config_login_type == 1 and not ldap_support:
+            log.error('Cannot activate ldap support, did you run \'pip install --target vendor -r optional-requirements.txt\'?')