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fix #1617

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Prevent LUSERS stats from getting out of sync when modes are
modified on offline clients.
This commit is contained in:
Shivaram Lingamneni 2021-04-18 20:18:02 -04:00
parent fed002d11a
commit eb2dfa78c9
1 changed files with 9 additions and 4 deletions
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11
irc/modes.go
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@ -32,6 +32,9 @@ var (
// to confirm that the client actually has a valid operclass)
func ApplyUserModeChanges(client *Client, changes modes.ModeChanges, force bool, oper *Oper) modes.ModeChanges {
applied := make(modes.ModeChanges, 0)
// #1617: if the user is offline, they are not counted in LUSERS,
// so don't modify the LUSERS stats for +i or +o.
present := len(client.Sessions()) != 0
for _, change := range changes {
if change.Mode != modes.ServerNotice {
@ -42,9 +45,9 @@ func ApplyUserModeChanges(client *Client, changes modes.ModeChanges, force bool,
}
if client.SetMode(change.Mode, true) {
if change.Mode == modes.Invisible {
if change.Mode == modes.Invisible && present {
client.server.stats.ChangeInvisible(1)
} else if change.Mode == modes.Operator {
} else if change.Mode == modes.Operator && present {
client.server.stats.ChangeOperators(1)
}
applied = append(applied, change)
@ -53,11 +56,13 @@ func ApplyUserModeChanges(client *Client, changes modes.ModeChanges, force bool,
case modes.Remove:
var removedSnomasks string
if client.SetMode(change.Mode, false) {
if change.Mode == modes.Invisible {
if change.Mode == modes.Invisible && present {
client.server.stats.ChangeInvisible(-1)
} else if change.Mode == modes.Operator {
removedSnomasks = client.server.snomasks.String(client)
if present {
client.server.stats.ChangeOperators(-1)
}
applyOper(client, nil, nil)
if removedSnomasks != "" {
client.server.snomasks.RemoveClient(client)