1 ;;; riece-ndcc.el --- elisp native 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.
28 (defgroup riece-ndcc nil
29 "Elisp native DCC implementation"
33 (defcustom riece-ndcc-server-address "127.0.0.1"
34 "Local address of the DCC server.
35 Only used for sending files."
39 (defvar riece-ndcc-requests nil)
41 (defvar riece-ndcc-request-user nil)
42 (defvar riece-ndcc-request-size nil)
44 (defun riece-ndcc-encode-address (address)
46 "^\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)$"
48 (error "% is not an IP address" address))
49 (let ((calc-number-radix 10))
50 (calc-eval (format "%s * (2 ** 24) + %s * (2 **16) + %s * (2 ** 8) + %s"
51 (match-string 1 address)
52 (match-string 2 address)
53 (match-string 3 address)
54 (match-string 4 address)))))
56 (defun riece-ndcc-decode-address (address)
58 (floor (string-to-number
59 (calc-eval (format "(%s / (2 ** 24)) %% 256" address))))
60 (floor (string-to-number
61 (calc-eval (format "(%s / (2 ** 16)) %% 256" address))))
62 (floor (string-to-number
63 (calc-eval (format "(%s / (2 ** 8)) %% 256" address))))
64 (floor (string-to-number
65 (calc-eval (format "%s %% 256" address))))))
67 (defun riece-ndcc-server-sentinel (process status)
68 (when (string-match "^open from " status)
70 (if (string-match " <[^>]+>$" (process-name process))
71 (substring (process-name process) 0 (match-beginning 0)))))
73 (set-buffer (process-buffer (get-process parent-name)))
74 (goto-char (point-min))
76 (process-send-region process
78 (goto-char (min (+ 1024 (point)) (point-max))))
79 (message "Sending %s...(%d/%d)"
80 (buffer-file-name) (1- (point)) (buffer-size)))
81 (message "Sending %s...done"
83 (kill-buffer (process-buffer (get-process parent-name))))
84 (kill-buffer (process-buffer process))
86 (defun riece-command-dcc-send (user file)
88 (let ((completion-ignore-case t))
89 (unless riece-ndcc-server-address
90 (error "Set riece-ndcc-server-address to your host"))
91 (list (completing-read
93 (mapcar #'list (riece-get-users-on-server)))
94 (expand-file-name (read-file-name "File: ")))))
95 (let* (selective-display
96 (coding-system-for-read 'binary)
98 jka-compr-compression-info-list
99 (buffer (find-file-noselect file))
101 (with-current-buffer buffer ;To throw an error when the
102 (setq buffer-read-only t)) ;process has input.
103 (setq process (make-network-process :name "DCC" :buffer buffer
104 :host riece-ndcc-server-address
107 :sentinel 'riece-ndcc-server-sentinel))
109 (format "PRIVMSG %s :\1DCC SEND %s %s %d %d\1\r\n"
110 user (file-name-nondirectory file)
111 (riece-ndcc-encode-address riece-ndcc-server-address)
112 (nth 1 (process-contact process))
113 (nth 7 (file-attributes file))))))
115 (defun riece-ndcc-filter (process input)
117 (set-buffer (process-buffer process))
118 (goto-char (point-max))
120 (message "Receiving %s from %s...(%d/%d)"
121 (file-name-nondirectory buffer-file-name)
122 riece-ndcc-request-user
124 riece-ndcc-request-size)))
126 (defun riece-ndcc-sentinel (process status)
128 (set-buffer (process-buffer process))
129 (unless (= (buffer-size) riece-ndcc-request-size)
130 (error "Premature end of file"))
131 (message "Receiving %s from %s...done"
132 (file-name-nondirectory buffer-file-name)
133 riece-ndcc-request-user)
134 (let ((coding-system-for-write 'binary))
137 (defun riece-command-dcc-receive (request file)
140 (unless riece-ndcc-requests
141 (error "No request"))
143 (if (= (length riece-ndcc-requests) 1)
144 (car riece-ndcc-requests)
145 (with-output-to-temp-buffer "*Help*"
146 (let ((requests riece-ndcc-requests)
149 (princ (format "%2d: %s %s (%d bytes)\n"
152 (nth 1 (car requests))
153 (nth 4 (car requests))))
154 (setq index (1+ index)
155 requests (cdr requests)))))
156 (let ((number (read-string "Request#: ")))
157 (unless (string-match "^[0-9]+$" number)
158 (error "Not a number"))
159 (if (or (> (setq number (string-to-number number))
160 (length riece-ndcc-requests))
162 (error "Invalid number"))
163 (nth (1- number) riece-ndcc-requests)))
164 (expand-file-name (read-file-name "Save as: ")))))
165 (let* (selective-display
166 (coding-system-for-read 'binary)
167 (coding-system-for-write 'binary)
168 (process (open-network-stream
170 (riece-ndcc-decode-address (nth 2 request))
172 (setq riece-rdcc-requests (delq request riece-rdcc-requests))
173 (with-current-buffer (process-buffer process)
174 (set-buffer-multibyte nil)
175 (buffer-disable-undo)
176 (setq buffer-file-name file)
177 (make-local-variable 'riece-ndcc-request-user)
178 (setq riece-ndcc-request-user (car request))
179 (make-local-variable 'riece-ndcc-request-size)
180 (setq riece-ndcc-request-size (nth 4 request)))
181 (set-process-filter process #'riece-ndcc-filter)
182 (set-process-sentinel process #'riece-ndcc-sentinel)))
184 (defun riece-handle-dcc-request (prefix target message)
185 (let ((case-fold-search t))
187 "SEND \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\)"
189 (let ((file (match-string 1 message))
190 (address (match-string 2 message))
191 (port (string-to-number (match-string 3 message)))
192 (size (string-to-number (match-string 4 message)))
193 (buffer (if (riece-channel-p target)
194 (cdr (riece-identity-assoc
195 (riece-make-identity target)
196 riece-channel-buffer-alist))))
197 (user (riece-prefix-nickname prefix)))
198 (setq riece-ndcc-requests
199 (cons (list user file address port size)
200 riece-ndcc-requests))
201 (riece-insert-change buffer (format "DCC SEND from %s\n" user))
203 (if (and riece-channel-buffer-mode
204 (not (eq buffer riece-channel-buffer)))
205 (list riece-dialogue-buffer riece-others-buffer)
206 riece-dialogue-buffer)
208 (riece-concat-server-name
209 (format "DCC SEND from %s (%s) to %s"
211 (riece-strip-user-at-host
212 (riece-prefix-user-at-host prefix))
217 (defun riece-ndcc-requires ()
220 (defvar riece-dialogue-mode-map)
221 (defun riece-ndcc-insinuate ()
222 (add-hook 'riece-ctcp-dcc-request-hook 'riece-handle-dcc-request)
223 (define-key riece-dialogue-mode-map "\C-ds" 'riece-command-dcc-send)
224 (define-key riece-dialogue-mode-map "\C-dr" 'riece-command-dcc-receive))
226 (provide 'riece-ndcc)
228 ;;; riece-ndcc.el ends here