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Mqtt: limit trace log payload length like http logging (#31944)

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andig 2026-07-19 15:39:00 +02:00 • committed by GitHub
parent b57faafcd9
commit 6afed701c0
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GPG key ID: B5690EEEBB952194
1 changed files with 11 additions and 3 deletions
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14
plugin/mqtt/client.go
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@ -224,7 +224,7 @@ func (m *Client) Cleanup(topic string, retained bool) error {
}
// Publish asynchronously publishes payload using client qos
func (m *Client) Publish(topic string, retained bool, payload any) {
func (m *Client) Publish(topic string, retained bool, payload string) {
connCtx := m.connContext()
go func() {
ctx, cancel := context.WithTimeout(connCtx, request.Timeout)
@ -242,7 +242,7 @@ func (m *Client) Publish(topic string, retained bool, payload any) {
return
}
m.log.TRACE.Printf("send %s: '%v'", topic, payload)
m.log.TRACE.Printf("send %s: '%v'", topic, truncate(payload))
token := m.client.Publish(topic, m.Qos, retained, payload)
select {
@ -290,7 +290,7 @@ func (m *Client) ListenSetter(topic string, callback func(string) error) error {
func (m *Client) listen(topic string) paho.Token {
token := m.client.Subscribe(topic, m.Qos, func(c paho.Client, msg paho.Message) {
payload := string(msg.Payload())
m.log.TRACE.Printf("recv %s: '%v'", topic, payload)
m.log.TRACE.Printf("recv %s: '%v'", topic, truncate(payload))
if len(payload) > 0 {
m.mux.Lock()
callbacks := m.listener[topic]
@ -303,3 +303,11 @@ func (m *Client) listen(topic string) paho.Token {
})
return token
}
// truncate limits payload length in trace logs, matching HTTP logging
func truncate(s string) string {
if len(s) > request.LogMaxLen {
s = s[:request.LogMaxLen] + "..."
}
return s
}