Tengo

Tengo can be used for advanced scripting in matterbridge, you can modify incoming and outgoing messages.

You can also use it to modify the {TENGO} parameter in the RemoteNickFormat.

[tengo]
InMessage="yourscript.tengo"
OutMessage="yourotherscript.tengo"
RemoteNickFormat="remotenickformat.tengo"

More information about tengo on: https://github.com/d5/tengo/blob/master/docs/tutorial.md and https://github.com/d5/tengo/blob/master/docs/stdlib.md

FIXME: Document support for dropping messages.

InMessage

InMessage allows you to specify the location of a tengo (https://github.com/d5/tengo/) script.
This script will receive every incoming message and can be used to modify the Username and the Text of that message.

The script will have the following global variables:
to modify: msgUsername and msgText
to read: msgChannel and msgAccount

The script is reloaded on every message, so you can modify the script on the fly.

Example script can be found in https://github.com/42wim/matterbridge/tree/master/gateway/bench.tengo and https://github.com/42wim/matterbridge/tree/master/contrib/example.tengo

The example below will check if the text contains blah and if so, it'll replace the text and the username of that message.

text := import("text")
if text.re_match("blah",msgText) {
    msgText="replaced by this"
    msgUsername="fakeuser"
}

InMessage="example.tengo"

OutMessage

OutMessage allows you to specify the location of the script that will be invoked on each message being sent to a bridge and can be used to modify the Username and the Text of that message.

The script will have the following global variables:
read-only:
inAccount, inProtocol, inChannel, inGateway, inEvent
outAccount, outProtocol, outChannel, outGateway, outEvent \

read-write:
msgText, msgUsername

The script is reloaded on every message, so you can modify the script on the fly.

The default script in https://github.com/42wim/matterbridge/tree/master/internal/tengo/outmessage.tengo is compiled in and will be executed if no script is specified.

OutMessage="example.tengo"

RemoteNickFormat

RemoteNickFormat allows you to specify the location of a tengo (https://github.com/d5/tengo/) script.

The script will have the following global variables:
to modify: result
to read: channel, bridge, gateway, protocol, nick

The result will be set in {TENGO} in the RemoteNickFormat key of every bridge where {TENGO} is specified

The script is reloaded on every message, so you can modify the script on the fly.

Example script can be found in https://github.com/42wim/matterbridge/tree/master/contrib/remotenickformat.tengo

RemoteNickFormat="remotenickformat.tengo"

More information

You can find more tengo examples/info here:

• https://github.com/42wim/matterbridge/issues?q=is%3Aissue+tengo+label%3Atengo+is%3Aclosed
• https://github.com/42wim/matterbridge/tree/master/internal/tengo
• https://github.com/42wim/matterbridge/tree/master/contrib
• https://github.com/42wim/matterbridge/wiki/settings#tengo

The tengo documentation can be found here: https://github.com/d5/tengo/tree/master/docs