A file/folder synchronization system similar to dropbox

Features: User Authentication, File upload, Directory Upload, Directory Synchronization, Complete web based file browser with complete details of files, Allow file sharing. Mail is sent to user with the link of file to be downloaded, User to user communication i.e messaging, User friendly client application for synchronization, Automatic installation of dependencies,

Uses following utilities or frameworks: Django, Openssh, Inotify, PyQt4, Bootstrap, Unison,