machinatrix

A very silly Matrix bot written in C.

To use it, create an account, start the machinatrix_matrix program, join a room, and send commands prefixed with an IRC-style mention of the user name. Current supported commands:

• ping: pong
• word: random word
• damn: random curse
• abbr <acronym> [<dictionary>]: random de-abbreviation
• bard: random Shakespearean insult
• dlpo <term>: lookup etymology (DLPO)
• wikt <term> [<lang>]: lookup etymology (Wiktionary)
• parl: use unparliamentary language
• tr <word> [<lang>]: translate word (Wiktionary)
• stats: print statistics

building

A C compiler and a UNIX programming environment are required, along with the following libraries (tested versions in parentheses):

• libcurl (7.55.1)
• tidy-html5 (5.6.0)
• cjson (1.7.10)

running

The main program, machinatrix, is responsible for executing the commands and can be tested without involving the Matrix server. Commands are accepted as arguments. If none is provided, they are read from stdin.

$ ./machinatrix ping
pong
$ ./machinatrix
ping
pong
ping
pong

A second binary, machinatrix_matrix, connects to the server, listens for new messages, and replies. It executes the machinatrix program to handle the commands.

$ ./machinatrix_matrix \
    --server matrix.example.com \
    --user @machinatrix:matrix.example.com \
    --token /path/to/token_file

Arguments after --, if present, are forwarded to machinatrix.

numeraria

numeraria is an optional statistics database service. It uses an SQLite database to record commands.

$ ./numeraria --db-path numeraria.sqlite --bind-unix numeraria.sock &
$ ./machinatrix --numeraria-unix numeraria.sock
ping
pong
ping
pong
stats
numeraria
  2 "ping" ""

To use with machinatrix_matrix, use the extra machinatrix arguments:

$ ./machinatrix_matrix \
    # regular arguments \
    -- --numeraria-unix numeraria.sock