[Announce] Event Trigger - execute commands triggered by LMS server events

[Roland0]

LMS Event Trigger is a plugin for executing external commands triggered by LMS server events.

Example scenarios

• Send a notification that a library rescan has finished to an Android device (using Gotify)
• Power off the server after a playlist has finished
• Show song informaion on an attached display

More information on the homepage

[davemal]

Hi Roland,

A couple of questions with this please.

1. Will this trigger on volume events ? I have tried "event":[["mixer"],["volume","+1"]]} and a few variations but not able to fire.
2. Is it possible to isolate to events from a specific player ?

thanks

[Roland0]

1. Will this trigger on volume events ? I have tried "event":[["mixer"],["volume","+1"]]} and a few variations but not able to fire.

"event":[["mixer"], ["volume"]]

2. Is it possible to isolate to events from a specific player ?

The player status is passed as a parameter to the executed command. This includes the player id/name, so e.g. for a shell script one can do:

PL=$(echo $2|sed -e 's/.*player_id":"\(..:..:..:..:..:..\)".*/\1/')
VOL=$(echo $2|sed -e 's/.*mixer volume":\([[:digit:]]*\).*/\1/')
if [[ "$PL" == "00:11:22:33:44:55" ]]; then
	echo "volume: $VOL"
fi

I'd recommend using jq for more complex json processing.

[davemal]

Thanks

I will brush up on some shell scripting and have a play.

[bidule]

Hello Roland,

Here are the steps I took:

I installed your plugin from the repository
I created a conf file

nano /etc/lmseventtrigger.json

#Test automatic PAUSE behaviour

{
"enabled": true,
"numStatusResults":1,
"events": [
{"cmd":"/usr/local/bin/lmsclient.sh","event":[["client"]]},
{"cmd":"/usr/local/bin/lmsplaylist.sh","event":[["playlist"],["newsong","pause"]]}
]
}

Nothing happen

Then I tried as per your wiki to use the url http://10.144.1.1:9000/plugins/LMSeventTrigger/js.html without success

404 Not Found: plugins/LMSeventTrigger/js.html

Your help is welcomed.

Jean

[Roland0]

I installed your plugin from the repository
Nothing happen

- Does the plugin appear in the LMS Web interface > Settings > Plugins > Active plugins list ?
- If so, switch logging to debug for the plugin (LMS Web interface > Settings > Advanced > Logging > plugin.lmseventtrigger) and check the server log.
You should have something like:

[20-12-24 08:45:56.3320] Plugins::LMSeventTrigger::Plugin::initPlugin (74) LMSeventTrigger init start
[20-12-24 08:45:56.3327] Plugins::LMSeventTrigger::Plugin::initSubscriptions (113) LMSeventTrigger: using /usr/local/etc/lmseventtrigger.json
[20-12-24 08:45:56.3360] Plugins::LMSeventTrigger::Plugin::initSubscriptions (120) LMSeventTrigger: parsed lmseventtrigger.json

[bidule]

Thank you Rolland,

Yes the plugin in active.
Here is a part of the log file

[20-12-24 09:22:41.5877] Plugins::LMSeventTrigger::Plugin::initPlugin (74) LMSeventTrigger init start
[20-12-24 09:22:41.5895] Plugins::LMSeventTrigger::Plugin::initSubscription s (110) LMSeventTrigger: using /etc/lmseventtrigger.json
[20-12-24 09:22:41.5909] Plugins::LMSeventTrigger::Plugin::initSubscription s (122) LMSeventTrigger: error parsing lmseventtrigger.json
[20-12-24 09:22:41.5919] Plugins::LMSeventTrigger::Plugin::initSubscription s (128) LMSeventTrigger: no valid configuration found, disabling plugin
[20-12-24 09:22:41.5929] Plugins::LMSeventTrigger::Plugin::initPlugin (85) LMSeventTrigger initialized (v0.0.2)

Jean

[bidule]

Hello Rolland,

I had a look at where any squeezelite.log could be, I'm using DietPi.
Here is the result:

/var/lib/dietpi/dietpi-ramlog/storage/squeezelite.log
/var/log/squeezelite.log
/var/tmp/dietpi/logs/dietpi-ramlog_store/squeezelite.log

Three empty files.

EDIT:
Sorry this message has no relation to this subject, it is related the other post.


Jean

[Roland0]

Here is a part of the log file

Log says:

[20-12-24 09:22:41.5909] Plugins::LMSeventTrigger::Plugin::initSubscription s (122) LMSeventTrigger: error parsing lmseventtrigger.json

check that lmseventtrigger.json is valid json, has the correct structure and file encoding (Unix line ends, probably UTF-8)

[Hotti]

Hello,

can I use event trigger to execute a script when a certain player is powered on or off?
Please, if so, how?

Regards, Cules

[Roland0]

can I use event trigger to execute a script when a certain player is powered on or off?

Use the "client disconnect" and "client reconnect" events

[justjason]

Sending HTTP requests

Could I ask , what would be the correct syntax for sending a HTTP request on an event ? For example this

http://192.168.1.1/cm?cmnd=Power%20TOGGLE

to toggle a Tasmota device, or would I need to wrap this in a shell command ?

[Paul Webster]

I had a look at the homepage linked to from the first post

https://www.nexus0.net/pub/sw/lmseventtrigger/

and I did not see anything suggesting that it would automatically handle a command starting with http ... so I guess that you need to launch something and pass in the request as a parameter.
For example ... try launching curl or wget

Might be better to write a script that does what you want and has some tracing in it (to help diagnose issues) and then have the plugin run your script once the script is working.

[justjason]

I agree , a curl http .... would not be difficult. I will use that.

[mh_]

Hi, I'd like to receive a message when a specific player gets powered on or off. I would like to further automate it with e.g. node-red to automatically power on/off an audio system connected to my sb3. Could this be implemented with the existing notification types?