1 ;;; riece-ndcc.el --- DCC file sending protocol support (written in elisp)
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 ;; NOTE: This is an add-on module for Riece.
30 (require 'riece-globals)
31 (require 'riece-options)
35 (defgroup riece-ndcc nil
36 "DCC written in elisp."
40 (defcustom riece-ndcc-server-address "127.0.0.1"
41 "Local address of the DCC server.
42 Only used for sending files."
46 (defvar riece-ndcc-requests nil)
48 (defvar riece-ndcc-request-user nil)
49 (defvar riece-ndcc-request-size nil)
51 (defvar riece-ndcc-enabled nil)
53 (defconst riece-ndcc-description
54 "DCC file sending protocol support (written in elisp.)")
56 (defun riece-ndcc-encode-address (address)
58 "^\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)$"
60 (error "% is not an IP address" address))
61 (let ((calc-number-radix 10))
62 (calc-eval (format "%s * (2 ** 24) + %s * (2 **16) + %s * (2 ** 8) + %s"
63 (match-string 1 address)
64 (match-string 2 address)
65 (match-string 3 address)
66 (match-string 4 address)))))
68 (defun riece-ndcc-decode-address (address)
70 (floor (string-to-number
71 (calc-eval (format "(%s / (2 ** 24)) %% 256" address))))
72 (floor (string-to-number
73 (calc-eval (format "(%s / (2 ** 16)) %% 256" address))))
74 (floor (string-to-number
75 (calc-eval (format "(%s / (2 ** 8)) %% 256" address))))
76 (floor (string-to-number
77 (calc-eval (format "%s %% 256" address))))))
79 (defun riece-ndcc-server-sentinel (process status)
80 (when (string-match "^open from " status)
82 (if (string-match " <[^>]+>$" (process-name process))
83 (substring (process-name process) 0 (match-beginning 0)))))
85 (set-buffer (process-buffer (get-process parent-name)))
86 (goto-char (point-min))
88 (process-send-region process
90 (goto-char (min (+ 1024 (point)) (point-max))))
91 (message "Sending %s...(%d/%d)"
92 (buffer-file-name) (1- (point)) (buffer-size)))
93 (message "Sending %s...done"
95 (kill-buffer (process-buffer (get-process parent-name))))
96 (kill-buffer (process-buffer process))))
98 (defun riece-command-dcc-send (user file)
100 (let ((completion-ignore-case t))
101 (unless riece-ndcc-server-address
102 (error "Set riece-ndcc-server-address to your host"))
103 (list (riece-completing-read-identity
105 (riece-get-users-on-server (riece-current-server-name)))
106 (expand-file-name (read-file-name "File: ")))))
107 (let* (selective-display
108 (coding-system-for-read 'binary)
110 jka-compr-compression-info-list
111 (buffer (find-file-noselect file))
113 (with-current-buffer buffer ;To throw an error when the
114 (setq buffer-read-only t)) ;process has input.
115 (setq process (make-network-process :name "DCC" :buffer buffer
116 :host riece-ndcc-server-address
119 :sentinel 'riece-ndcc-server-sentinel))
121 (format "PRIVMSG %s :\1DCC SEND %s %s %d %d\1\r\n"
122 (riece-identity-prefix user)
123 (file-name-nondirectory file)
124 (riece-ndcc-encode-address riece-ndcc-server-address)
125 (nth 1 (process-contact process))
126 (nth 7 (file-attributes file))))))
128 (defun riece-ndcc-filter (process input)
130 (set-buffer (process-buffer process))
131 (goto-char (point-max))
133 (message "Receiving %s from %s...(%d/%d)"
134 (file-name-nondirectory buffer-file-name)
135 riece-ndcc-request-user
137 riece-ndcc-request-size)))
139 (defun riece-ndcc-sentinel (process status)
141 (set-buffer (process-buffer process))
142 (unless (= (buffer-size) riece-ndcc-request-size)
143 (error "Premature end of file"))
144 (message "Receiving %s from %s...done"
145 (file-name-nondirectory buffer-file-name)
146 riece-ndcc-request-user)
147 (let ((coding-system-for-write 'binary))
150 (defun riece-command-dcc-receive (request file)
153 (unless riece-ndcc-requests
154 (error "No request"))
156 (if (= (length riece-ndcc-requests) 1)
157 (car riece-ndcc-requests)
158 (with-output-to-temp-buffer "*Help*"
159 (let ((requests riece-ndcc-requests)
162 (princ (format "%2d: %s %s (%d bytes)\n"
165 (nth 1 (car requests))
166 (nth 4 (car requests))))
167 (setq index (1+ index)
168 requests (cdr requests)))))
169 (let ((number (read-string "Request#: ")))
170 (unless (string-match "^[0-9]+$" number)
171 (error "Not a number"))
172 (if (or (> (setq number (string-to-number number))
173 (length riece-ndcc-requests))
175 (error "Invalid number"))
176 (nth (1- number) riece-ndcc-requests)))
177 (expand-file-name (read-file-name "Save as: ")))))
178 (let* (selective-display
179 (coding-system-for-read 'binary)
180 (coding-system-for-write 'binary)
181 (process (open-network-stream
183 (riece-ndcc-decode-address (nth 2 request))
185 (setq riece-ndcc-requests (delq request riece-ndcc-requests))
186 (with-current-buffer (process-buffer process)
187 (set-buffer-multibyte nil)
188 (buffer-disable-undo)
189 (setq buffer-file-name file)
190 (make-local-variable 'riece-ndcc-request-user)
191 (setq riece-ndcc-request-user (car request))
192 (make-local-variable 'riece-ndcc-request-size)
193 (setq riece-ndcc-request-size (nth 4 request)))
194 (set-process-filter process #'riece-ndcc-filter)
195 (set-process-sentinel process #'riece-ndcc-sentinel)))
197 (defun riece-handle-dcc-request (prefix target message)
198 (let ((case-fold-search t))
199 (when (and riece-ndcc-enabled
201 "SEND \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\)"
203 (let ((file (match-string 1 message))
204 (address (match-string 2 message))
205 (port (string-to-number (match-string 3 message)))
206 (size (string-to-number (match-string 4 message)))
207 (buffer (if (riece-channel-p target)
208 (riece-channel-buffer (riece-make-identity
209 target riece-server-name))))
210 (user (riece-prefix-nickname prefix)))
211 (setq riece-ndcc-requests
212 (cons (list user file address port size)
213 riece-ndcc-requests))
214 (riece-insert-change buffer (format "DCC SEND from %s\n" user))
216 (if (and riece-channel-buffer-mode
217 (not (eq buffer riece-channel-buffer)))
218 (list riece-dialogue-buffer riece-others-buffer)
219 riece-dialogue-buffer)
221 (riece-concat-server-name
222 (format "DCC SEND from %s (%s) to %s"
224 (riece-strip-user-at-host
225 (riece-prefix-user-at-host prefix))
230 (defun riece-ndcc-requires ()
233 (defvar riece-dialogue-mode-map)
234 (defun riece-ndcc-insinuate ()
235 (add-hook 'riece-ctcp-dcc-request-hook 'riece-handle-dcc-request))
237 (defun riece-ndcc-enable ()
238 (define-key riece-dialogue-mode-map "\C-ds" 'riece-command-dcc-send)
239 (define-key riece-dialogue-mode-map "\C-dr" 'riece-command-dcc-receive))
241 (defun riece-ndcc-disable ()
242 (define-key riece-dialogue-mode-map "\C-ds" nil)
243 (define-key riece-dialogue-mode-map "\C-dr" nil))
245 (provide 'riece-ndcc)
247 ;;; riece-ndcc.el ends here