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Updating mqtt topic processing to incorrect topic matching when a shorter topic than expected is used which in some situations could cause a crash

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This commit is contained in:
Matt Holmes 2025-03-21 17:10:47 +00:00
parent e6a6ce9925
commit 15b1543555
1 changed files with 9 additions and 6 deletions
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15
Software/src/devboard/mqtt/mqtt.cpp
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@ -438,14 +438,17 @@ static void subscribe() {
esp_mqtt_client_subscribe(client, (topic_name + "/command/+").c_str(), 1);
}
void mqtt_message_received(char* topic, int topic_len, char* data, int data_len) {
void mqtt_message_received(char* topic_raw, int topic_len, char* data, int data_len) {
char* topic = strndup(topic_raw, topic_len);
#ifdef DEBUG_LOG
logging.printf("MQTT message arrived: [%.*s]\n", topic_len, topic);
#endif // DEBUG_LOG
#ifdef REMOTE_BMS_RESET
const char* bmsreset_topic = generateButtonTopic("BMSRESET").c_str();
if (strncmp(topic, bmsreset_topic, topic_len) == 0) {
if (strcmp(topic, bmsreset_topic) == 0) {
#ifdef DEBUG_LOG
logging.println("Triggering BMS reset");
#endif // DEBUG_LOG
@ -453,21 +456,21 @@ void mqtt_message_received(char* topic, int topic_len, char* data, int data_len)
}
#endif // REMOTE_BMS_RESET
if (strncmp(topic, generateButtonTopic("PAUSE").c_str(), topic_len) == 0) {
if (strcmp(topic, generateButtonTopic("PAUSE").c_str()) == 0) {
setBatteryPause(true, false);
}
if (strncmp(topic, generateButtonTopic("RESUME").c_str(), topic_len) == 0) {
if (strcmp(topic, generateButtonTopic("RESUME").c_str()) == 0) {
setBatteryPause(false, false, false);
}
if (strncmp(topic, generateButtonTopic("RESTART").c_str(), topic_len) == 0) {
if (strcmp(topic, generateButtonTopic("RESTART").c_str()) == 0) {
setBatteryPause(true, true, true, false);
delay(1000);
ESP.restart();
}
if (strncmp(topic, generateButtonTopic("STOP").c_str(), topic_len) == 0) {
if (strcmp(topic, generateButtonTopic("STOP").c_str()) == 0) {
setBatteryPause(true, false, true);
}
}