This program reads an email from STDIN and sends it in a structured format to a configured MQTT channel.
Emails are published to the MQTT channel in JSON structured like this:
{
"headers": {
"From": "example@example.com",
"To": "you@example.com"
},
"bodyParts": {
"text/html": "<html><body><h1>Hello world!</h1></body></html>",
"text/plain": "Hello world!"
}
}headersis a mapping from the header name to the corresponding value. If the original message had a header specified more than once, all the values are joined together separated by,.bodyPartscontains all the content types available in the original message, keyed by the type's MIME name.
Copy config.example.json to config.json in the working directory where you will run the code from, or to
/etc/sieve-extprogram-mqtt/config.json. Set the properties listed in the example file.
clientIdPrefix will be appended with a 6 character random string, generated when sieve-extprogram-mqtt starts up. This
can help distinguish between different runtimes of the program.