Matrix Welcome Bot

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This project is no longer maintained.

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Overview

This Matrix bot will join whatever room it is invited to and greed new users with your configured message.

Build

Requirements:

• Java JDK 1.8

./gradlew build

A runnable jar will be created in the subfolder build/libs

Run

Requirements:

• Java JRE/JDK 1.8

The following environment variables are required:

Name	Description
WB_STORE_FILE	Storage file for the bot. Must be readable and writable.
WB_USER_MXISD	Matrix ID of the user to use for the bot.
WB_USER_PASSWORD	Password of the user to use for the bot.
WB_HS_URL	Base URL of Homeserver to connect to. Auto-discovered if possible.
WB_MESSAGE_TEXT_FILE	The message in text format to send.
WB_MESSAGE_HTML_FILE	The message in text format to send.

%JOINED_USER% is to be used as a placeholder in the files and will be replaced by the Matrix ID of the joined user.

In the directory where the built jar is, run with:

<ENV>... java -jar matrix-welcome-bot.jar

Example for:

• The file /var/matrix-welcome-bot/data for the bot to store its state data
• The user @john:example.org
• The password MyPassword
• HS Base URL is auto-discovered thanks to .well-known support
• Message in text format in /etc/matrix-welcome-bot/message.txt
• Message in text format in /etc/matrix-welcome-bot/message.html

WB_STORE_FILE=/var/matrix-welcome-bot/data
WB_USER_MXID='@john:example.org' \
WB_USER_PASSWORD='MyPassword' \
WB_MESSAGE_TEXT_FILE='/etc/matrix-welcome-bot/message.txt' \
WB_MESSAGE_HTML_FILE='/etc/matrix-welcome-bot/message.html' \
java -jar welcome-bot.jar 

Docker

Build with:

docker build -t matrix-welcome-bot .

Run with:

docker run --rm -e 'WB_CONFIG_KEY=...' matrix-welcome-bot