Re: how to create a mutual subscription(both)?

[Robbie Hanson]

> User A:
> XMPPPresence *presenceFromUserA = [XMPPPresence
> presenceWithType:@"subscribe" to:UserBJid];
> [[self xmppStream] sendElement:myPresenceSub];

Instead of this, you can simply use the [XMPPRoster addUser:withNickname:] method.

> //right next line, i do:
> XMPPPresence *presenceFromUserB = [XMPPPresence
> presenceWithType:@"subscribe" to:UserAJid];
> [[self xmppStream] sendElement:myPresenceSub];

This isn't needed. The previous call (with andAddToRoster:YES) handled all this for you.

> the result is:
> User A has two roster items: userB@localhost, userB@localhost/
> resource (this is wrong)

Yes, that's certainly wrong. The changes above might fix this problem. Although the bug still technically exists. What roster storage are you using?

-Robbie Hanson

On Feb 14, 2012, at 1:28 AM, skyline wrote:

> I would like to create a mutual subscription like this:
> userA sends a presence subscription to userB, then userB accepts the
> subscription request and subscribe back to userA.
>
> I tried the following:
>
> User A:
> XMPPPresence *presenceFromUserA = [XMPPPresence
> presenceWithType:@"subscribe" to:UserBJid];
> [[self xmppStream] sendElement:myPresenceSub];
>
> User B:
> [xmppRoster acceptPresenceSubscriptionRequestFrom:[presenceFromUserA
> from] andAddToRoster:YES withNickName:UserA];
> //right next line, i do:
> XMPPPresence *presenceFromUserB = [XMPPPresence
> presenceWithType:@"subscribe" to:UserAJid];
> [[self xmppStream] sendElement:myPresenceSub];
>
> the result is:
> User A has two roster items: userB@localhost, userB@localhost/
> resource (this is wrong)
> User B has one roster item: userA@localhost (this is correct)
>
> please correct me if i do anything wrong, or could you please suggest
> me a better solution?
> thanks
>
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[skyline]

sorry robbie, i thought i needed to read the XMPP documents for this
problem so i deleted my post, and i believe this is not a bug, it was
just something wrong i did in my code. After reading XMPP documents, i
found that same solution like you stated above "[XMPPRoster
addUser:withNickname:]". This fixed my problem.

thanks for your time.