(require 'erc-dcc)
(defcustom erc-xdcc-files nil
"*List of files to offer via XDCC.
Your friends should issue \"/ctcp yournick XDCC list\" to see this."
:group 'erc-dcc
:type '(repeat file))
(defcustom erc-xdcc-verbose-flag t
"*Report XDCC CTCP requests in the server buffer."
:group 'erc-dcc
:type 'boolean)
(defcustom erc-xdcc-handler-alist
'(("help" . erc-xdcc-help)
("list" . erc-xdcc-list)
("send" . erc-xdcc-send))
"*Sub-command handler alist for XDCC CTCP queries."
:group 'erc-dcc
:type '(alist :key-type (string :tag "Sub-command") :value-type function))
(defcustom erc-xdcc-help-text
'(("Hey " nick ", wondering how this works? Pretty easy.")
("Available commands: XDCC ["
(mapconcat 'car erc-xdcc-handler-alist "|") "]")
("Type \"/ctcp " (erc-current-nick)
" XDCC list\" to see the list of offered files, then type \"/ctcp "
(erc-current-nick) " XDCC send #\" to get a particular file number."))
"*Help text sent in response to XDCC help command.
A list of messages, each consisting of strings and expressions, expressions
being evaluated and should return stings."
:group 'erc-dcc
:type '(repeat (repeat :tag "Message" (choice string sexp))))
(defun erc-xdcc-add-file (file)
"Add a file to `erc-xdcc-files'."
(interactive "fFilename to add to XDCC: ")
(if (file-exists-p file)
(add-to-list 'erc-xdcc-files file)))
(defun erc-xdcc-reply (proc nick msg)
(process-send-string proc
(format "PRIVMSG %s :%s\n" nick msg)))
(defvar erc-ctcp-query-XDCC-hook '(erc-xdcc)
"Hook called whenever a CTCP XDCC message is received.")
(defun erc-xdcc (proc nick login host to query)
"Handle incoming CTCP XDCC queries."
(when erc-xdcc-verbose-flag
(erc-display-message nil 'notice proc
(format "XDCC %s (%s@%s) sends %S" nick login host query)))
(let* ((args (cdr (delete "" (split-string query " "))))
(handler (cdr (assoc (downcase (car args)) erc-xdcc-handler-alist))))
(if (and handler (functionp handler))
(funcall handler proc nick login host (cdr args))
(erc-xdcc-reply
proc nick
(format "Unknown XDCC sub-command, try \"/ctcp %s XDCC help\""
(erc-current-nick))))))
(defun erc-xdcc-help (proc nick login host args)
"Send basic help information to NICK."
(mapc
(lambda (msg)
(erc-xdcc-reply proc nick
(mapconcat (lambda (elt) (if (stringp elt) elt (eval elt))) msg "")))
erc-xdcc-help-text))
(defun erc-xdcc-list (proc nick login host args)
"Show the contents of `erc-xdcc-files' via privmsg to NICK."
(if (null erc-xdcc-files)
(erc-xdcc-reply proc nick "No files offered, sorry")
(erc-xdcc-reply proc nick "Num Filename")
(erc-xdcc-reply proc nick "--- -------------")
(let ((n 0))
(dolist (file erc-xdcc-files)
(erc-xdcc-reply proc nick
(format "%02d. %s"
(setq n (1+ n))
(erc-dcc-file-to-name file)))))))
(defun erc-xdcc-send (proc nick login host args)
"Send a file to NICK."
(let ((n (string-to-number (car args)))
(len (length erc-xdcc-files)))
(cond
((= len 0)
(erc-xdcc-reply proc nick "No files offered, sorry"))
((or (< n 1) (> n len))
(erc-xdcc-reply proc nick (format "%d out of range" n)))
(t (erc-dcc-send-file nick (nth (1- n) erc-xdcc-files) proc)))))
(provide 'erc-xdcc)