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.
26 (require 'riece-globals)
27 (require 'riece-options)
28 (require 'riece-display)
32 (defgroup riece-ndcc nil
33 "Elisp native DCC implementation"
37 (defcustom riece-ndcc-server-address "127.0.0.1"
38 "Local address of the DCC server.
39 Only used for sending files."
43 (defvar riece-ndcc-requests nil)
45 (defvar riece-ndcc-request-user nil)
46 (defvar riece-ndcc-request-size nil)
48 (defun riece-ndcc-encode-address (address)
50 "^\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)$"
52 (error "% is not an IP address" address))
53 (let ((calc-number-radix 10))
54 (calc-eval (format "%s * (2 ** 24) + %s * (2 **16) + %s * (2 ** 8) + %s"
55 (match-string 1 address)
56 (match-string 2 address)
57 (match-string 3 address)
58 (match-string 4 address)))))
60 (defun riece-ndcc-decode-address (address)
62 (floor (string-to-number
63 (calc-eval (format "(%s / (2 ** 24)) %% 256" address))))
64 (floor (string-to-number
65 (calc-eval (format "(%s / (2 ** 16)) %% 256" address))))
66 (floor (string-to-number
67 (calc-eval (format "(%s / (2 ** 8)) %% 256" address))))
68 (floor (string-to-number
69 (calc-eval (format "%s %% 256" address))))))
71 (defun riece-ndcc-server-sentinel (process status)
72 (when (string-match "^open from " status)
74 (if (string-match " <[^>]+>$" (process-name process))
75 (substring (process-name process) 0 (match-beginning 0)))))
77 (set-buffer (process-buffer (get-process parent-name)))
78 (goto-char (point-min))
80 (process-send-region process
82 (goto-char (min (+ 1024 (point)) (point-max))))
83 (message "Sending %s...(%d/%d)"
84 (buffer-file-name) (1- (point)) (buffer-size)))
85 (message "Sending %s...done"
87 (kill-buffer (process-buffer (get-process parent-name))))
88 (kill-buffer (process-buffer process))))
90 (defun riece-command-dcc-send (user file)
92 (let ((completion-ignore-case t))
93 (unless riece-ndcc-server-address
94 (error "Set riece-ndcc-server-address to your host"))
95 (list (riece-completing-read-identity
97 (riece-get-users-on-server (riece-current-server-name)))
98 (expand-file-name (read-file-name "File: ")))))
99 (let* (selective-display
100 (coding-system-for-read 'binary)
102 jka-compr-compression-info-list
103 (buffer (find-file-noselect file))
105 (with-current-buffer buffer ;To throw an error when the
106 (setq buffer-read-only t)) ;process has input.
107 (setq process (make-network-process :name "DCC" :buffer buffer
108 :host riece-ndcc-server-address
111 :sentinel 'riece-ndcc-server-sentinel))
113 (format "PRIVMSG %s :\1DCC SEND %s %s %d %d\1\r\n"
114 (riece-identity-prefix user)
115 (file-name-nondirectory file)
116 (riece-ndcc-encode-address riece-ndcc-server-address)
117 (nth 1 (process-contact process))
118 (nth 7 (file-attributes file))))))
120 (defun riece-ndcc-filter (process input)
122 (set-buffer (process-buffer process))
123 (goto-char (point-max))
125 (message "Receiving %s from %s...(%d/%d)"
126 (file-name-nondirectory buffer-file-name)
127 riece-ndcc-request-user
129 riece-ndcc-request-size)))
131 (defun riece-ndcc-sentinel (process status)
133 (set-buffer (process-buffer process))
134 (unless (= (buffer-size) riece-ndcc-request-size)
135 (error "Premature end of file"))
136 (message "Receiving %s from %s...done"
137 (file-name-nondirectory buffer-file-name)
138 riece-ndcc-request-user)
139 (let ((coding-system-for-write 'binary))
142 (defun riece-command-dcc-receive (request file)
145 (unless riece-ndcc-requests
146 (error "No request"))
148 (if (= (length riece-ndcc-requests) 1)
149 (car riece-ndcc-requests)
150 (with-output-to-temp-buffer "*Help*"
151 (let ((requests riece-ndcc-requests)
154 (princ (format "%2d: %s %s (%d bytes)\n"
157 (nth 1 (car requests))
158 (nth 4 (car requests))))
159 (setq index (1+ index)
160 requests (cdr requests)))))
161 (let ((number (read-string "Request#: ")))
162 (unless (string-match "^[0-9]+$" number)
163 (error "Not a number"))
164 (if (or (> (setq number (string-to-number number))
165 (length riece-ndcc-requests))
167 (error "Invalid number"))
168 (nth (1- number) riece-ndcc-requests)))
169 (expand-file-name (read-file-name "Save as: ")))))
170 (let* (selective-display
171 (coding-system-for-read 'binary)
172 (coding-system-for-write 'binary)
173 (process (open-network-stream
175 (riece-ndcc-decode-address (nth 2 request))
177 (setq riece-ndcc-requests (delq request riece-ndcc-requests))
178 (with-current-buffer (process-buffer process)
179 (set-buffer-multibyte nil)
180 (buffer-disable-undo)
181 (setq buffer-file-name file)
182 (make-local-variable 'riece-ndcc-request-user)
183 (setq riece-ndcc-request-user (car request))
184 (make-local-variable 'riece-ndcc-request-size)
185 (setq riece-ndcc-request-size (nth 4 request)))
186 (set-process-filter process #'riece-ndcc-filter)
187 (set-process-sentinel process #'riece-ndcc-sentinel)))
189 (defun riece-handle-dcc-request (prefix target message)
190 (let ((case-fold-search t))
192 "SEND \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\)"
194 (let ((file (match-string 1 message))
195 (address (match-string 2 message))
196 (port (string-to-number (match-string 3 message)))
197 (size (string-to-number (match-string 4 message)))
198 (buffer (if (riece-channel-p target)
199 (riece-channel-buffer (riece-make-identity
200 target riece-server-name))))
201 (user (riece-prefix-nickname prefix)))
202 (setq riece-ndcc-requests
203 (cons (list user file address port size)
204 riece-ndcc-requests))
205 (riece-insert-change buffer (format "DCC SEND from %s\n" user))
207 (if (and riece-channel-buffer-mode
208 (not (eq buffer riece-channel-buffer)))
209 (list riece-dialogue-buffer riece-others-buffer)
210 riece-dialogue-buffer)
212 (riece-concat-server-name
213 (format "DCC SEND from %s (%s) to %s"
215 (riece-strip-user-at-host
216 (riece-prefix-user-at-host prefix))
221 (defun riece-ndcc-requires ()
224 (defvar riece-dialogue-mode-map)
225 (defun riece-ndcc-insinuate ()
226 (add-hook 'riece-ctcp-dcc-request-hook 'riece-handle-dcc-request)
227 (define-key riece-dialogue-mode-map "\C-ds" 'riece-command-dcc-send)
228 (define-key riece-dialogue-mode-map "\C-dr" 'riece-command-dcc-receive))
230 (provide 'riece-ndcc)
232 ;;; riece-ndcc.el ends here