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)
31 (defgroup riece-ndcc nil
32 "DCC written in elisp."
36 (defcustom riece-ndcc-server-address "127.0.0.1"
37 "Local address of the DCC server.
38 Only used for sending files."
42 (defvar riece-ndcc-requests nil)
44 (defvar riece-ndcc-request-user nil)
45 (defvar riece-ndcc-request-size nil)
47 (defvar riece-ndcc-enabled nil)
49 (defconst riece-ndcc-description
50 "DCC file sending extension implemented with `make-network-process'")
52 (defun riece-ndcc-encode-address (address)
54 "^\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)$"
56 (error "% is not an IP address" address))
57 (let ((calc-number-radix 10))
58 (calc-eval (format "%s * (2 ** 24) + %s * (2 **16) + %s * (2 ** 8) + %s"
59 (match-string 1 address)
60 (match-string 2 address)
61 (match-string 3 address)
62 (match-string 4 address)))))
64 (defun riece-ndcc-decode-address (address)
66 (floor (string-to-number
67 (calc-eval (format "(%s / (2 ** 24)) %% 256" address))))
68 (floor (string-to-number
69 (calc-eval (format "(%s / (2 ** 16)) %% 256" address))))
70 (floor (string-to-number
71 (calc-eval (format "(%s / (2 ** 8)) %% 256" address))))
72 (floor (string-to-number
73 (calc-eval (format "%s %% 256" address))))))
75 (defun riece-ndcc-server-sentinel (process status)
76 (when (string-match "^open from " status)
78 (if (string-match " <[^>]+>$" (process-name process))
79 (substring (process-name process) 0 (match-beginning 0)))))
81 (set-buffer (process-buffer (get-process parent-name)))
82 (goto-char (point-min))
84 (process-send-region process
86 (goto-char (min (+ 1024 (point)) (point-max))))
87 (message "Sending %s...(%d/%d)"
88 (buffer-file-name) (1- (point)) (buffer-size)))
89 (message "Sending %s...done"
91 (kill-buffer (process-buffer (get-process parent-name))))
92 (kill-buffer (process-buffer process))))
94 (defun riece-command-dcc-send (user file)
96 (let ((completion-ignore-case t))
97 (unless riece-ndcc-server-address
98 (error "Set riece-ndcc-server-address to your host"))
99 (list (riece-completing-read-identity
101 (riece-get-users-on-server (riece-current-server-name)))
102 (expand-file-name (read-file-name "File: ")))))
103 (let* (selective-display
104 (coding-system-for-read 'binary)
106 jka-compr-compression-info-list
107 (buffer (find-file-noselect file))
109 (with-current-buffer buffer ;To throw an error when the
110 (setq buffer-read-only t)) ;process has input.
111 (setq process (make-network-process :name "DCC" :buffer buffer
112 :host riece-ndcc-server-address
115 :sentinel 'riece-ndcc-server-sentinel))
117 (format "PRIVMSG %s :\1DCC SEND %s %s %d %d\1\r\n"
118 (riece-identity-prefix user)
119 (file-name-nondirectory file)
120 (riece-ndcc-encode-address riece-ndcc-server-address)
121 (nth 1 (process-contact process))
122 (nth 7 (file-attributes file))))))
124 (defun riece-ndcc-filter (process input)
126 (set-buffer (process-buffer process))
127 (goto-char (point-max))
129 (message "Receiving %s from %s...(%d/%d)"
130 (file-name-nondirectory buffer-file-name)
131 riece-ndcc-request-user
133 riece-ndcc-request-size)))
135 (defun riece-ndcc-sentinel (process status)
137 (set-buffer (process-buffer process))
138 (unless (= (buffer-size) riece-ndcc-request-size)
139 (error "Premature end of file"))
140 (message "Receiving %s from %s...done"
141 (file-name-nondirectory buffer-file-name)
142 riece-ndcc-request-user)
143 (let ((coding-system-for-write 'binary))
146 (defun riece-command-dcc-receive (request file)
149 (unless riece-ndcc-requests
150 (error "No request"))
152 (if (= (length riece-ndcc-requests) 1)
153 (car riece-ndcc-requests)
154 (with-output-to-temp-buffer "*Help*"
155 (let ((requests riece-ndcc-requests)
158 (princ (format "%2d: %s %s (%d bytes)\n"
161 (nth 1 (car requests))
162 (nth 4 (car requests))))
163 (setq index (1+ index)
164 requests (cdr requests)))))
165 (let ((number (read-string "Request#: ")))
166 (unless (string-match "^[0-9]+$" number)
167 (error "Not a number"))
168 (if (or (> (setq number (string-to-number number))
169 (length riece-ndcc-requests))
171 (error "Invalid number"))
172 (nth (1- number) riece-ndcc-requests)))
173 (expand-file-name (read-file-name "Save as: ")))))
174 (let* (selective-display
175 (coding-system-for-read 'binary)
176 (coding-system-for-write 'binary)
177 (process (open-network-stream
179 (riece-ndcc-decode-address (nth 2 request))
181 (setq riece-ndcc-requests (delq request riece-ndcc-requests))
182 (with-current-buffer (process-buffer process)
183 (set-buffer-multibyte nil)
184 (buffer-disable-undo)
185 (setq buffer-file-name file)
186 (make-local-variable 'riece-ndcc-request-user)
187 (setq riece-ndcc-request-user (car request))
188 (make-local-variable 'riece-ndcc-request-size)
189 (setq riece-ndcc-request-size (nth 4 request)))
190 (set-process-filter process #'riece-ndcc-filter)
191 (set-process-sentinel process #'riece-ndcc-sentinel)))
193 (defun riece-handle-dcc-request (prefix target message)
194 (let ((case-fold-search t))
195 (when (and riece-ndcc-enabled
197 "SEND \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\)"
199 (let ((file (match-string 1 message))
200 (address (match-string 2 message))
201 (port (string-to-number (match-string 3 message)))
202 (size (string-to-number (match-string 4 message)))
203 (buffer (if (riece-channel-p target)
204 (riece-channel-buffer (riece-make-identity
205 target riece-server-name))))
206 (user (riece-prefix-nickname prefix)))
207 (setq riece-ndcc-requests
208 (cons (list user file address port size)
209 riece-ndcc-requests))
210 (riece-insert-change buffer (format "DCC SEND from %s\n" user))
212 (if (and riece-channel-buffer-mode
213 (not (eq buffer riece-channel-buffer)))
214 (list riece-dialogue-buffer riece-others-buffer)
215 riece-dialogue-buffer)
217 (riece-concat-server-name
218 (format "DCC SEND from %s (%s) to %s"
220 (riece-strip-user-at-host
221 (riece-prefix-user-at-host prefix))
226 (defun riece-ndcc-requires ()
229 (defvar riece-dialogue-mode-map)
230 (defun riece-ndcc-insinuate ()
231 (add-hook 'riece-ctcp-dcc-request-hook 'riece-handle-dcc-request))
233 (defun riece-ndcc-enable ()
234 (define-key riece-dialogue-mode-map "\C-ds" 'riece-command-dcc-send)
235 (define-key riece-dialogue-mode-map "\C-dr" 'riece-command-dcc-receive))
237 (defun riece-ndcc-disable ()
238 (define-key riece-dialogue-mode-map "\C-ds" nil)
239 (define-key riece-dialogue-mode-map "\C-dr" nil))
241 (provide 'riece-ndcc)
243 ;;; riece-ndcc.el ends here