use davs instead of dav when https is used

tracim/tracim/controllers/workspace.py

         )
 
         dictified_workspace = Context(CTX.WORKSPACE).toDict(workspace, 'workspace')
+
+        # INFO - G.M - 15-02-2018 - Deal with url scheme for dav link
+        # TODO - G.M - 15-02-2018 - Find better solution to deal with url ?
         webdav_url = CFG.get_instance().WSGIDAV_CLIENT_BASE_URL
         website_protocol = urlparse(CFG.get_instance().WEBSITE_BASE_URL).scheme
+        dav_protocol = 'dav'
+        if website_protocol == "https":
+            dav_protocol = 'davs'
 
         return DictLikeClass(
             result=dictified_workspace,
             fake_api=fake_api,
             webdav_url=webdav_url,
             website_protocol = website_protocol,
+            dav_protocol = dav_protocol,
             show_deleted=show_deleted,
             show_archived=show_archived,
         )

tracim/tracim/templates/workspace/getone.mak

                 <p></p>
                 <div class="input-group">
                     <span class="input-group-addon" style="width: 8em;"><i class="fa fa-fw fa-linux"></i> Linux</span>
-                    <div class="form-control webdavconfig__input">dav://${webdav_url}</div>
+                    <div class="form-control webdavconfig__input">${dav_protocol}://${webdav_url}</div>
                 </div>
             </div>
             <div class="col-md-6">