Smack's FileTransferManager.createOutgoingFileTransfer only accepts full JIDs. How can I determine the full JID of a user in Smack?

问题

After hours of debugging and trying to find out why the file transfer was not working using aSmack, while normal messaging was, I finally managed to pin it down to this.

The Openfire server is sending the Rosters' JID missing the / at the end when I follow the method given in the Smack documentation to get a user's Roster list.

Collection<RosterEntry> entries = roster.getEntries();
for (RosterEntry r : entries) {
    Log.v("Gabriel","Receiving: " + r.getUser());
}

For example if I receive a message from the user gabriel, I get the "From" as:

gabriel@dragonov/Smack

But the r.getUser() returns to the user as

gabriel@dragonov

Even

connection.getRoster().getPresence(contactName).getFrom()

is returning is as "gabriel@dragonov".

This is causing the File transfer to fail, but oddly not the regular messaging. However when I manually add the /Smack at the end of

 OutgoingFileTransfer transferr = manager.createOutgoingFileTransfer(contactJID+"/Smack");

it works.

My question is, how can I receive the full JID with the resource part included or configure the file transfer so that it doesn't fail when using a bare JID?

Edit:

I have tried the following method:

 Log.v("Gabriel", entries.size() + " buddy(ies):");
    for (RosterEntry r : entries) {
        Log.v("Pat","adding: " + r.getType() + "  " + r.getName());
        contacts.add(r.getUser());
    }      

    for (String contact : contacts){
        Iterator<org.jivesoftware.smack.packet.Presence> presences = connection.getRoster().getPresences(contact);
        Log.v("Gabriel", contact+" has: ");
        while(presences.hasNext()){
            Log.v("Gabriel",presences.next().getFrom());
        }           
    }

But I am still getting the bare ID.

The output: gabriel@dragonov has: gabriel@dragonov

回答1:

Use Iterator<Presence> Roster.getPresences(String user) to get the presence information from all known resources of a user. For this Presence instances getFrom() should return a full JID which you can use in FileTransferManager.createOutgoingFileTransfer().

I have created SMACK-430, regarding the use of a full JID in createOutgoingFileTranfer(). It really should throw an exception so that smack users don't have to debug hours to find the reason (although it's stated in the method javadoc). SMACK-430 also explains why FileTransferManager needs a full JID and can not be used with a bare JID.

来源：https://stackoverflow.com/questions/15518440/smacks-filetransfermanager-createoutgoingfiletransfer-only-accepts-full-jids-h

标签

xmpp

file-transfer

smack

asmack