func (e *UntrackEngine) Run(ctx *Context) (err error) {
e.arg.Me, err = e.loadMe()
if err != nil {
return
}
them, remoteLink, localLink, err := e.loadThem()
if err != nil {
return
}
e.signingKeyPub, err = e.arg.Me.SigningKeyPub()
if err != nil {
return
}
untrackStatement, err := e.arg.Me.UntrackingProofFor(e.signingKeyPub, them)
if err != nil {
return
}
e.untrackStatementBytes, err = untrackStatement.Marshal()
if err != nil {
return
}
e.G().Log.Debug("| Untracking statement: %s", string(e.untrackStatementBytes))
didUntrack := false
if localLink != nil {
err = e.storeLocalUntrack(them)
if err != nil {
return
}
didUntrack = true
}
if remoteLink != nil && !remoteLink.IsRevoked() {
err = e.storeRemoteUntrack(them, ctx)
if err != nil {
return
}
didUntrack = true
}
if !didUntrack {
err = libkb.NewUntrackError("User %s is already untracked", e.arg.Username)
return
}
e.G().NotifyRouter.HandleTrackingChanged(e.arg.Me.GetUID(), e.arg.Me.GetName())
return
}
func (e *UntrackEngine) loadThem() (them *libkb.User, remoteLink, localLink *libkb.TrackChainLink, err error) {
var rLink *libkb.TrackChainLink
trackMap := e.arg.Me.IDTable().GetTrackMap()
if links, ok := trackMap[e.arg.Username]; ok && (len(links) > 0) {
rLink = links[len(links)-1]
}
var uid keybase1.UID
uidTrusted := false
if rLink != nil {
if uid, err = rLink.GetTrackedUID(); err != nil {
return
}
uidTrusted = true
}
if uid.IsNil() {
res := libkb.ResolveUID(e.arg.Username)
if err = res.GetError(); err != nil {
return
}
// This is an untrusted uid.
uid = res.GetUID()
if uid.IsNil() {
err = libkb.NewUntrackError("Could not resolve uid for @%s", e.arg.Username)
return
}
}
lLink, err := libkb.LocalTrackChainLinkFor(e.arg.Me.GetUID(), uid, e.G())
if err != nil {
return
}
if rLink == nil && lLink == nil {
err = libkb.NewUntrackError("You are not tracking %s", e.arg.Username)
return
}
if !uidTrusted {
if lLink == nil {
err = libkb.NewUntrackError("Could not verify resolved uid for @%s", e.arg.Username)
return
}
var trackedUsername string
trackedUsername, err = lLink.GetTrackedUsername()
if err != nil {
return
}
if e.arg.Username != trackedUsername {
err = libkb.NewUntrackError("Username mismatch: expected @%s, got @%s", e.arg.Username, trackedUsername)
return
}
uidTrusted = true
}
them = libkb.NewUserThin(e.arg.Username, uid)
remoteLink = rLink
localLink = lLink
return
}