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irc-chatdir/irc-chatdir.scm

238 lines
8.4 KiB
Scheme
Executable File

#! /bin/sh
#|
exec csi -s "$0" "$@"
|#
;;
;; Copyright 2023, Jaidyn Levesque <jadedctrl@posteo.at>
;;
;; This program is free software: you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation, either version 3 of
;; the License, or (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;
(import scheme
(chicken file) (chicken file posix) (chicken io) (chicken pathname)
(chicken process-context) (chicken process-context posix)
(chicken string)
srfi-1 srfi-18 srfi-69
(prefix chatdir chatdir:) (prefix chatdir-inotify chatdir:)
ircc
getopt-long)
;; Join an IRC channel
(define (make-join-channel-callback connection)
(let ([root-dir (hash-table-ref connection 'directory)])
(lambda (channel)
(irc:write-cmd connection "JOIN" channel))))
;; Leave an IRC channel
(define (make-leave-channel-callback connection)
(let ([root-dir (hash-table-ref connection 'directory)])
(lambda (channel)
(irc:write-cmd connection "PART" channel))))
;; Send message to an IRC channel
(define (make-send-message-callback connection)
(let ([root-dir (hash-table-ref connection 'directory)])
(lambda (channel message)
(irc:write-cmd connection "PRIVMSG" channel message)
(chatdir:channel-message-add! root-dir channel message
(hash-table-ref connection 'nick)))))
;; Hook function for irc:loop; handles all IRC commands
(define (make-irc-command-callback conn)
(let ([root-dir (hash-table-ref conn 'directory)])
(lambda (conn cmd params #!optional sender tags)
(cond
[(and (string=? cmd "PRIVMSG")
(string? sender)
(irc:hostmask? sender))
(let ([target (if (irc:user-is-self? conn (car params))
(irc:hostmask-nick sender)
(car params))])
(chatdir:channel-message-add! root-dir target
(last params) (irc:hostmask-nick sender)))]
[(or (string=? cmd "NOTICE")
(and (string=? cmd "PRIVMSG")
(or (string-null? sender) (not (irc:hostmask? sender)))))
(chatdir:channel-message-add! root-dir ".server" (last params))]
[(and (string=? cmd "JOIN") (irc:user-is-self? conn sender))
(chatdir:channel-add! root-dir (last params))]
[(string=? cmd "JOIN")
(let ([channel (car params)]
[nick (irc:hostmask-nick sender)])
(chatdir:channel-user-add! root-dir channel nick)
(chatdir:channel-user-toggle-states! root-dir channel nick
"online" "offline"))]
[(string=? cmd "PART")
(chatdir:channel-user-toggle-states!
root-dir (car params) (irc:hostmask-nick sender)
"offline" "online")]))))
;; [(string=? cmd "NICK")
;; (chatd-json-write conn
;; (compose-event-alist conn "user-info" #:user (last params)))])
;; Hook function for irc:loop; handles all IRC errors and replies
(define (make-irc-reply-callback conn)
(let ([root-dir (hash-table-ref conn 'directory)])
(lambda (conn reply params #!optional sender tags)
(let ([channel (second params)])
(cond
;; If topic set, output to a channel's .topic file
[(and (eq? reply RPL_TOPIC)
(irc:channel? channel))
(chatdir:channel-metadata-set! root-dir channel
"topic" (last params))]
[(and (eq? reply RPL_TOPICWHOTIME)
(irc:channel? (second params)))
(chatdir:channel-metadata-set!
root-dir channel "topic" #f
(if (last params)
`((user.chat.sender . ,(third params))
(user.chat.date . ,(last params)))
`((user.chat.sender . ,(third params)))))]
;; We've got to add users, when they join the room!
[(or (and (irc:capability? conn 'userhost-in-names)
(eq? reply RPL_ENDOFNAMES))
(eq? reply RPL_ENDOFWHO))
(map (lambda (nick)
(let ([hostmask (irc:user-get conn nick 'hostmask)])
(chatdir:channel-user-add! root-dir channel nick)
(chatdir:channel-user-toggle-states! root-dir channel nick
"online" "offline")))
(irc:channel-users conn (second params)))]
[(string? (last params))
(chatdir:channel-message-add! root-dir ".server" (last params))])))))
(define *help-msg*
(string-append
"usage: irc-chatd [-hd] [-n nick] [-u user] [-p password] hostname\n\n"
"`chatd` is a standard format for chat client-daemons; the goal being that a\n"
"chat client should be able to work with any chat protocol (IRC, XMPP, etc)\n"
"just by reading and writing to files served by a `chatd` daemon, without\n"
"having to worry about the protocol in use.\n\n"
"irc-chatd is a `chatd`-compliant IRC client-daemon, that outputs all messages\n"
"from the server in parseable format to an output file, and receives input\n"
"from a FIFO File.\n".))
(define *opts*
'((help
"Print a usage message"
(single-char #\h))
(nickname
"Your preferred nickname. Default is your system username."
(single-char #\n)
(value (required NICK)))
(username
"Username of the connection. Default is your system username."
(single-char #\u)
(value (required USERNAME)))
(password
"The password optionally used in connection."
(single-char #\p)
(value (required PASSWORD)))
(name
"Set the realname of your connection."
(value (required NAME)))
(directory
"Root directory for channels and messages. Defaults to CWD."
(single-char #\o)
(value (required PATH)))
(debug
(single-char #\d)
"Print all messages received from the IRC server.")))
;; Prints cli usage to stderr.
(define (help)
(write-string *help-msg* #f (open-output-file* fileno/stderr))
(write-string (usage *opts*) #f (open-output-file* fileno/stderr))
(exit 1))
(define (wait-for-registration connection)
(if (not (hash-table-exists? connection 'registered))
(begin
(thread-sleep! .1)
(wait-for-registration connection))
#t))
;; The `main` procedure that should be called to run feedsnake-unix for use as script.
(define (main)
(let* ([args (getopt-long (command-line-arguments) *opts*)]
[free-args (alist-ref '@ args)])
(if (or (null? free-args) (alist-ref 'help args))
(help))
(let*
([username (or (alist-ref 'username args)
(current-effective-user-name))]
[password (alist-ref 'password args)]
[nickname (or (alist-ref 'nickname args)
(current-effective-user-name))]
[fullname (alist-ref 'name args)]
[server (last free-args)]
[hostname (first (string-split server ":"))]
[port (string->number (or (last (string-split server ":"))
"6697"))]
[directory (normalize-pathname
(string-append (or (alist-ref 'directory args) "./")
"/"))]
[connection (if server
(irc:connect hostname port username nickname password fullname)
#f)])
(unless connection
(help))
(hash-table-set! connection 'directory
(normalize-pathname (string-append directory "/")))
(create-directory (string-append directory "/.server"))
;; Kick off the input loop, which monitors channels' .in/ dirs
(thread-start!
(make-thread
(lambda ()
(let ([callbacks
`((join-channel . ,(make-join-channel-callback connection))
(leave-channel . ,(make-leave-channel-callback connection))
(send-message . ,(make-send-message-callback connection)))])
(thread-sleep! 10)
(chatdir:input-loop-init directory callbacks)
(chatdir:input-loop directory callbacks)))
"Chat input"))
(print (hash-table-ref connection 'directory))
;; Kick off the main loop!
(irc:loop connection
(make-irc-command-callback connection)
(make-irc-reply-callback connection)
(alist-ref 'debug args)))))
(main)