1 ;;; riece-rdcc.el --- ruby implementation of DCC add-on
2 ;; Copyright (C) 1998-2003 Daiki Ueno
4 ;; Author: Daiki Ueno <ueno@unixuser.org>
5 ;; Keywords: IRC, riece
7 ;; This file is part of Riece.
9 ;; This program is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; This program is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
26 (require 'riece-globals)
28 (require 'riece-channel)
29 (require 'riece-identity)
30 (require 'riece-ctcp) ;for riece-ctcp-additional-clientinfo
32 (defgroup riece-rdcc nil
33 "DCC implementation using ruby"
37 (defcustom riece-rdcc-server-address nil
38 "Local address of the DCC server.
39 Only used for sending files."
43 (defcustom riece-rdcc-ruby-command "ruby"
44 "Command name for Ruby interpreter."
48 (defcustom riece-rdcc-send-program
53 sock.connect('164.46.176.4', 7) # www.unixuser.org/echo
54 address = sock.getsockname[4 .. 7].unpack('CCCC').join('.')
56 server = TCPServer.new(address, 0)
57 puts(\"#{server.addr[3].split(/\\./).collect{|c| c.to_i}.pack('CCCC').unpack('N')[0]} #{server.addr[1]}\")
59 session = server.accept
62 File.open(" file ") {|file|
63 while (bytes = file.read(" block-size "))
69 end until buf.unpack('N')[0] == total
75 "Ruby program to send file with DCC."
79 (defcustom riece-rdcc-decode-address-program
81 puts(\"#{" address " >> 24 & 0xFF}.#{" address " >> 16 & 0xFF}.#{"
82 address " >> 8 & 0xFF}.#{" address " & 0xFF}\")")
83 "Ruby program to numeric IP address."
87 (defcustom riece-rdcc-save-directory nil
88 "Default directory where received files are saved in."
92 (defcustom riece-rdcc-block-size 1024
93 "Number of bytes sent as a block."
97 (defvar riece-rdcc-requests nil)
99 (defvar riece-rdcc-request-user nil)
100 (defvar riece-rdcc-request-file nil)
101 (defvar riece-rdcc-request-size nil)
103 (defvar riece-rdcc-temp-file nil)
104 (defvar riece-rdcc-received-size nil)
106 (defvar riece-rdcc-enabled nil)
108 (defconst riece-rdcc-description
109 "DCC file sending extension implemented in Ruby")
111 (defvar temporary-file-directory)
112 (defvar jka-compr-compression-info-list)
113 (defvar jam-zcat-filename-list)
114 (defun riece-rdcc-substitute-variables (program variable value)
115 (setq program (copy-sequence program))
116 (let ((pointer program))
118 (setq pointer (memq variable program))
120 (setcar pointer value)))
123 (defun riece-rdcc-server-filter (process input)
125 (set-buffer (process-buffer process))
126 (goto-char (point-max))
128 (goto-char (point-min))
129 (while (and (not (eobp))
130 (looking-at "\\([0-9]+\\)\n"))
131 (message "Sending %s...(%s/%d)"
132 riece-rdcc-request-file
133 (match-string 1) riece-rdcc-request-size)
136 (delete-region (point-min) (point)))))
138 (defun riece-rdcc-server-sentinel (process status)
139 (with-current-buffer (process-buffer process)
140 (message "Sending %s...done" riece-rdcc-request-file))
141 (kill-buffer (process-buffer process)))
143 (defun riece-command-dcc-send (user file)
145 (let ((completion-ignore-case t))
146 (list (riece-completing-read-identity
148 (riece-get-users-on-server (riece-current-server-name)))
149 (expand-file-name (read-file-name "File: ")))))
150 (let* ((process-connection-type nil)
151 (process (start-process "DCC" (generate-new-buffer " *DCC*")
153 (process-send-string process
155 (riece-rdcc-substitute-variables
156 (riece-rdcc-substitute-variables
157 (riece-rdcc-substitute-variables
158 riece-rdcc-send-program
160 (if riece-rdcc-server-address
161 (concat "'" riece-rdcc-server-address
165 (concat "'" file "'"))
167 (number-to-string riece-rdcc-block-size))))
168 (process-send-eof process)
170 (set-buffer (process-buffer process))
171 (while (and (eq (process-status process) 'run)
173 (goto-char (point-min))
174 (not (looking-at "\\([0-9]+\\) \\([0-9]+\\)"))))
175 (accept-process-output process))
176 (if (eq (process-status process) 'run)
177 (let ((address (match-string 1))
178 (port (match-string 2))
179 (filename (file-name-nondirectory file)))
180 (while (string-match "[ \t]+" filename)
181 (setq filename (replace-match "_" nil nil filename)))
183 (make-local-variable 'riece-rdcc-request-size)
184 (setq riece-rdcc-request-file file
185 riece-rdcc-request-size (nth 7 (file-attributes file)))
186 (set-buffer-modified-p nil)
187 (set-process-filter process #'riece-rdcc-server-filter)
188 (set-process-sentinel process #'riece-rdcc-server-sentinel)
190 (format "PRIVMSG %s :\1DCC SEND %s %s %s %d\1\r\n"
191 (riece-identity-prefix user)
194 riece-rdcc-request-size)))))))
196 (defun riece-rdcc-filter (process input)
198 (set-buffer (process-buffer process))
201 (let ((coding-system-for-write 'binary)
202 jka-compr-compression-info-list jam-zcat-filename-list)
203 (write-region (point-min) (point-max) riece-rdcc-temp-file t 0))
204 (setq riece-rdcc-received-size (+ (buffer-size) riece-rdcc-received-size))
208 (lsh riece-rdcc-received-size -24)
209 (logand (lsh riece-rdcc-received-size -16) 255)
210 (logand (lsh riece-rdcc-received-size -8) 255)
211 (logand riece-rdcc-received-size 255)))
212 (message "Receiving %s from %s...(%s/%s)"
213 (file-name-nondirectory riece-rdcc-request-file)
214 riece-rdcc-request-user
215 (riece-rdcc-format-size riece-rdcc-received-size)
216 (riece-rdcc-format-size riece-rdcc-request-size))
217 (if (= riece-rdcc-received-size riece-rdcc-request-size)
218 (set-process-filter process nil))))
220 (defun riece-rdcc-sentinel (process status)
222 (set-buffer (process-buffer process))
223 (unless (= riece-rdcc-received-size riece-rdcc-request-size)
224 (error "Premature end of file"))
225 (message "Receiving %s from %s...done"
226 (file-name-nondirectory riece-rdcc-request-file)
227 riece-rdcc-request-user)
230 (rename-file riece-rdcc-temp-file riece-rdcc-request-file)
231 (delete-directory (file-name-directory riece-rdcc-temp-file)))
233 (error "Can't save %s. Temporarily saved in %s"
234 riece-rdcc-request-file riece-rdcc-temp-file))))
235 (kill-buffer (process-buffer process)))
237 (defun riece-rdcc-decode-address (address)
239 (call-process riece-rdcc-ruby-command nil t nil "-e"
241 (riece-rdcc-substitute-variables
242 riece-rdcc-decode-address-program
245 (buffer-substring (point-min) (1- (point-max)))))
247 (defun riece-command-dcc-receive (request file)
250 (unless riece-rdcc-requests
251 (error "No request"))
253 (if (= (length riece-rdcc-requests) 1)
254 (car riece-rdcc-requests)
255 (with-output-to-temp-buffer "*Help*"
256 (let ((requests riece-rdcc-requests)
259 (princ (format "%2d: %s %s (%d bytes)\n"
262 (nth 1 (car requests))
263 (nth 4 (car requests))))
264 (setq index (1+ index)
265 requests (cdr requests)))))
266 (let ((number (read-string "Request#: ")))
267 (unless (string-match "^[0-9]+$" number)
268 (error "Not a number"))
269 (if (or (> (setq number (string-to-number number))
270 (length riece-rdcc-requests))
272 (error "Invalid number"))
273 (nth (1- number) riece-rdcc-requests))))
274 (default-name (expand-file-name
275 (convert-standard-filename (nth 1 request))
276 (or riece-rdcc-save-directory
277 default-directory))))
281 (concat "Save as (default "
282 (file-name-nondirectory default-name) ") ")
283 (file-name-directory default-name)
285 (let* ((temp-file (expand-file-name
286 (file-name-nondirectory file)
287 (expand-file-name (make-temp-name "riece-rdcc")
288 (if (featurep 'xemacs)
290 temporary-file-directory))))
291 (orig-mode (default-file-modes))
293 (coding-system-for-read 'binary)
294 (coding-system-for-write 'binary)
298 (set-default-file-modes 448)
299 ;; This may throw an error.
300 (make-directory (file-name-directory temp-file)))
301 (set-default-file-modes orig-mode))
302 (setq process (open-network-stream
303 "DCC" (generate-new-buffer " *DCC*")
304 (riece-rdcc-decode-address (nth 2 request))
306 (setq riece-rdcc-requests (delq request riece-rdcc-requests))
307 (with-current-buffer (process-buffer process)
308 (if (fboundp 'set-buffer-multibyte)
309 (set-buffer-multibyte nil))
310 (buffer-disable-undo)
312 (make-local-variable 'riece-rdcc-request-user)
313 (setq riece-rdcc-request-user (car request))
314 (make-local-variable 'riece-rdcc-request-file)
315 (setq riece-rdcc-request-file file)
316 (make-local-variable 'riece-rdcc-request-size)
317 (setq riece-rdcc-request-size (nth 4 request))
318 (make-local-variable 'riece-rdcc-temp-file)
319 (setq riece-rdcc-temp-file temp-file)
320 (make-local-variable 'riece-rdcc-received-size)
321 (setq riece-rdcc-received-size 0))
322 (set-process-filter process #'riece-rdcc-filter)
323 (set-process-sentinel process #'riece-rdcc-sentinel)))
325 (defun riece-rdcc-format-size (size)
327 (format "%0.1f" size)
328 (setq size (/ size 1024.0))
330 (format "%0.1fKB" size)
331 (setq size (/ size 1024.0))
333 (format "%0.1fMB" size)
334 (format "%0.1fGB" (/ size 1024.0))))))
336 (defun riece-handle-dcc-request (prefix target message)
337 (let ((case-fold-search t))
338 (when (and riece-rdcc-enabled
340 "SEND \\(\\([^ ]+\\)\\|\"\\(.+\\)\"\\) \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\)"
342 (let ((file (or (match-string 2 message)
343 (match-string 3 message)))
344 (address (match-string 4 message))
345 (port (string-to-number (match-string 5 message)))
346 (size (string-to-number (match-string 6 message)))
347 (buffer (if (riece-channel-p target)
348 (riece-channel-buffer (riece-make-identity
349 target riece-server-name))))
350 (user (riece-prefix-nickname prefix)))
351 (setq riece-rdcc-requests
352 (cons (list user file address port size)
353 riece-rdcc-requests))
355 (with-current-buffer (window-buffer (selected-window))
356 (substitute-command-keys
358 "Type \\[riece-command-dcc-receive] to receive"
360 (riece-insert-change buffer (format "DCC SEND from %s: %s (%s)\n"
362 (riece-rdcc-format-size size)))
364 (if (and riece-channel-buffer-mode
365 (not (eq buffer riece-channel-buffer)))
366 (list riece-dialogue-buffer riece-others-buffer)
367 riece-dialogue-buffer)
369 (riece-concat-server-name
370 (format "DCC SEND from %s (%s) to %s: %s (%s)"
372 (riece-strip-user-at-host
373 (riece-prefix-user-at-host prefix))
374 (riece-decode-coding-string target)
376 (riece-rdcc-format-size size)))
380 (defun riece-rdcc-requires ()
383 (defvar riece-dialogue-mode-map)
384 (defun riece-rdcc-insinuate ()
385 (add-to-list 'riece-ctcp-additional-clientinfo "DCC")
386 (add-hook 'riece-ctcp-dcc-request-hook 'riece-handle-dcc-request))
388 (defun riece-rdcc-enable ()
389 (define-key riece-dialogue-mode-map "\C-ds" 'riece-command-dcc-send)
390 (define-key riece-dialogue-mode-map "\C-dr" 'riece-command-dcc-receive)
391 (setq riece-rdcc-enabled t))
393 (defun riece-rdcc-disable ()
394 (define-key riece-dialogue-mode-map "\C-ds" nil)
395 (define-key riece-dialogue-mode-map "\C-dr" nil)
396 (setq riece-rdcc-enabled nil))
398 (provide 'riece-rdcc)
400 ;;; riece-rdcc.el ends here