Subject: How to realize offline file transfer?
XEP-0129(WebDAV File Transfers) defines the method for sender to initiate a file transfer while the recipient is offline.But the xmpp server doesn't support it.Should I develop a server plugin to support it?Or should I use Webdav server, and if so,should I develop web service to deal with the xmmp client's upload and download file require?Could anyone give me some suggestion on how to realize offline file transfer?