Emitted when the message requires authentication.
If credentials are available call [method@Auth.authenticate] on auth
. If these credentials fail, the signal will be emitted
again, with retrying
set to true, which will continue until you return without calling [
method@Auth.authenticate] on auth
.
Note that this may be emitted before msg
's body has been fully read.
You can authenticate auth
asynchronously by calling [method@GObject.Object.ref] on auth
and returning
true. The operation will complete once either [method@Auth.authenticate] or [method@Auth.cancel] are
called.
auth |
the Auth to authenticate |
retrying |
true if this is the second (or later) attempt |
true to stop other handlers from being invoked or false to propagate the event further. |