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Fix crash on empty MQTT command

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An empty or whitespace-only MQTT command message caused an unhandled
std::out_of_range exception that terminated the process. Check for
empty args before accessing. Also add null check on m_mqtt before
publishing response.
This commit is contained in:
Ember 2026-04-04 16:47:58 -07:00
parent 0e04ebae0f
commit c9a2d5802e
1 changed files with 8 additions and 1 deletions
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9
RemoteControl.cpp
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@ -62,6 +62,12 @@ REMOTE_COMMAND CRemoteControl::processCommand(const std::string& command)
start = command.find_first_not_of(' ', end);
}
if (m_args.empty()) {
if (m_mqtt != nullptr)
m_mqtt->publish("response", "KO");
return REMOTE_COMMAND::NONE;
}
if (m_args.at(0U) == "enable" && m_args.size() >= ENABLE_ARGS) {
if (m_args.at(1U) == "net1")
m_command = REMOTE_COMMAND::ENABLE_NETWORK1;
@ -122,7 +128,8 @@ REMOTE_COMMAND CRemoteControl::processCommand(const std::string& command)
#endif
}
m_mqtt->publish("response", replyStr);
if (m_mqtt != nullptr)
m_mqtt->publish("response", replyStr);
return m_command;
}