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;;; erc-xdcc.el --- XDCC file-server support for ERC
;; Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
;; Author: Mario Lang <mlang@delysid.org>
;; Keywords: comm, processes
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This file provides a very simple XDCC file server for ERC.
;;; Code:
(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 strings."
:group 'erc-dcc
:type '(repeat (repeat :tag "Message" (choice string sexp))))
;;;###autoload (autoload 'erc-xdcc-mode "erc-xdcc")
(define-erc-module xdcc nil
"Act as an XDCC file-server."
nil nil)
;;;###autoload
(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)))
;; CTCP query handlers
(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)
;;; erc-xdcc.el ends here
;;
;; Local Variables:
;; indent-tabs-mode: t
;; tab-width: 8
;; End:
;; arch-tag: a13b62fe-2399-4562-af4e-f18a8dd4b9c8
|
