wsgidav: rewrite path for prefix usage

tracim/tracim/config/app_cfg.py

                 )
             )
 
+        if not self.WSGIDAV_CLIENT_BASE_URL.endswith('/'):
+            self.WSGIDAV_CLIENT_BASE_URL += '/'
+
 
     def get_tracker_js_content(self, js_tracker_file_path = None):
         js_tracker_file_path = tg.config.get('js_tracker_path', None)

tracim/tracim/lib/webdav/sql_dav_provider.py

 # coding: utf8
 
 import re
-from os.path import basename, dirname, normpath
+from os.path import basename, dirname
 from sqlalchemy.orm.exc import NoResultFound
 from tracim.lib.webdav.utils import transform_to_bdd
 
 from tracim.lib.workspace import WorkspaceApi
 from tracim.model.data import Content, Workspace
 from tracim.model.data import ContentType
+from tracim.lib.webdav.utils import normpath
 
 
 class Provider(DAVProvider):

tracim/tracim/lib/webdav/sql_resources.py

 import re
 from datetime import datetime
 from time import mktime
-from os.path import normpath, dirname, basename
-import mimetypes
+from os.path import dirname, basename
 
 from tracim.lib.content import ContentApi
 from tracim.lib.user import UserApi
 from wsgidav.dav_error import DAVError, HTTP_FORBIDDEN
 from wsgidav.dav_provider import DAVCollection, DAVNonCollection
 from wsgidav.dav_provider import _DAVResource
+from tracim.lib.webdav.utils import normpath
 
 from sqlalchemy.orm.exc import NoResultFound, MultipleResultsFound
 

tracim/tracim/lib/webdav/utils.py

 from datetime import datetime
 
 import yaml
+from os.path import normpath as base_normpath
 from wsgidav import util
 from wsgidav import compat
 from wsgidav.middleware import BaseMiddleware
                 dump_content['content'] = ElementTree.tostring(xml, 'utf-8')
 
             f.write(yaml.dump(dump_content, default_flow_style=False))
+
+
+def normpath(path):
+    if path == b'':
+        path = b'/'
+    elif path == '':
+        path = '/'
+    return base_normpath(path)