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 "Elisp native DCC implementation"
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 (defun riece-ndcc-encode-address (address)
49 "^\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)$"
51 (error "% is not an IP address" address))
52 (let ((calc-number-radix 10))
53 (calc-eval (format "%s * (2 ** 24) + %s * (2 **16) + %s * (2 ** 8) + %s"
54 (match-string 1 address)
55 (match-string 2 address)
56 (match-string 3 address)
57 (match-string 4 address)))))
59 (defun riece-ndcc-decode-address (address)
61 (floor (string-to-number
62 (calc-eval (format "(%s / (2 ** 24)) %% 256" address))))
63 (floor (string-to-number
64 (calc-eval (format "(%s / (2 ** 16)) %% 256" address))))
65 (floor (string-to-number
66 (calc-eval (format "(%s / (2 ** 8)) %% 256" address))))
67 (floor (string-to-number
68 (calc-eval (format "%s %% 256" address))))))
70 (defun riece-ndcc-server-sentinel (process status)
71 (when (string-match "^open from " status)
73 (if (string-match " <[^>]+>$" (process-name process))
74 (substring (process-name process) 0 (match-beginning 0)))))
76 (set-buffer (process-buffer (get-process parent-name)))
77 (goto-char (point-min))
79 (process-send-region process
81 (goto-char (min (+ 1024 (point)) (point-max))))
82 (message "Sending %s...(%d/%d)"
83 (buffer-file-name) (1- (point)) (buffer-size)))
84 (message "Sending %s...done"
86 (kill-buffer (process-buffer (get-process parent-name))))
87 (kill-buffer (process-buffer process))))
89 (defun riece-command-dcc-send (user file)
91 (let ((completion-ignore-case t))
92 (unless riece-ndcc-server-address
93 (error "Set riece-ndcc-server-address to your host"))
94 (list (riece-completing-read-identity
96 (riece-get-users-on-server (riece-current-server-name)))
97 (expand-file-name (read-file-name "File: ")))))
98 (let* (selective-display
99 (coding-system-for-read 'binary)
101 jka-compr-compression-info-list
102 (buffer (find-file-noselect file))
104 (with-current-buffer buffer ;To throw an error when the
105 (setq buffer-read-only t)) ;process has input.
106 (setq process (make-network-process :name "DCC" :buffer buffer
107 :host riece-ndcc-server-address
110 :sentinel 'riece-ndcc-server-sentinel))
112 (format "PRIVMSG %s :\1DCC SEND %s %s %d %d\1\r\n"
113 (riece-identity-prefix user)
114 (file-name-nondirectory file)
115 (riece-ndcc-encode-address riece-ndcc-server-address)
116 (nth 1 (process-contact process))
117 (nth 7 (file-attributes file))))))
119 (defun riece-ndcc-filter (process input)
121 (set-buffer (process-buffer process))
122 (goto-char (point-max))
124 (message "Receiving %s from %s...(%d/%d)"
125 (file-name-nondirectory buffer-file-name)
126 riece-ndcc-request-user
128 riece-ndcc-request-size)))
130 (defun riece-ndcc-sentinel (process status)
132 (set-buffer (process-buffer process))
133 (unless (= (buffer-size) riece-ndcc-request-size)
134 (error "Premature end of file"))
135 (message "Receiving %s from %s...done"
136 (file-name-nondirectory buffer-file-name)
137 riece-ndcc-request-user)
138 (let ((coding-system-for-write 'binary))
141 (defun riece-command-dcc-receive (request file)
144 (unless riece-ndcc-requests
145 (error "No request"))
147 (if (= (length riece-ndcc-requests) 1)
148 (car riece-ndcc-requests)
149 (with-output-to-temp-buffer "*Help*"
150 (let ((requests riece-ndcc-requests)
153 (princ (format "%2d: %s %s (%d bytes)\n"
156 (nth 1 (car requests))
157 (nth 4 (car requests))))
158 (setq index (1+ index)
159 requests (cdr requests)))))
160 (let ((number (read-string "Request#: ")))
161 (unless (string-match "^[0-9]+$" number)
162 (error "Not a number"))
163 (if (or (> (setq number (string-to-number number))
164 (length riece-ndcc-requests))
166 (error "Invalid number"))
167 (nth (1- number) riece-ndcc-requests)))
168 (expand-file-name (read-file-name "Save as: ")))))
169 (let* (selective-display
170 (coding-system-for-read 'binary)
171 (coding-system-for-write 'binary)
172 (process (open-network-stream
174 (riece-ndcc-decode-address (nth 2 request))
176 (setq riece-ndcc-requests (delq request riece-ndcc-requests))
177 (with-current-buffer (process-buffer process)
178 (set-buffer-multibyte nil)
179 (buffer-disable-undo)
180 (setq buffer-file-name file)
181 (make-local-variable 'riece-ndcc-request-user)
182 (setq riece-ndcc-request-user (car request))
183 (make-local-variable 'riece-ndcc-request-size)
184 (setq riece-ndcc-request-size (nth 4 request)))
185 (set-process-filter process #'riece-ndcc-filter)
186 (set-process-sentinel process #'riece-ndcc-sentinel)))
188 (defun riece-handle-dcc-request (prefix target message)
189 (let ((case-fold-search t))
191 "SEND \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\)"
193 (let ((file (match-string 1 message))
194 (address (match-string 2 message))
195 (port (string-to-number (match-string 3 message)))
196 (size (string-to-number (match-string 4 message)))
197 (buffer (if (riece-channel-p target)
198 (riece-channel-buffer (riece-make-identity
199 target riece-server-name))))
200 (user (riece-prefix-nickname prefix)))
201 (setq riece-ndcc-requests
202 (cons (list user file address port size)
203 riece-ndcc-requests))
204 (riece-insert-change buffer (format "DCC SEND from %s\n" user))
206 (if (and riece-channel-buffer-mode
207 (not (eq buffer riece-channel-buffer)))
208 (list riece-dialogue-buffer riece-others-buffer)
209 riece-dialogue-buffer)
211 (riece-concat-server-name
212 (format "DCC SEND from %s (%s) to %s"
214 (riece-strip-user-at-host
215 (riece-prefix-user-at-host prefix))
220 (defun riece-ndcc-requires ()
223 (defvar riece-dialogue-mode-map)
224 (defun riece-ndcc-insinuate ()
225 (add-hook 'riece-ctcp-dcc-request-hook 'riece-handle-dcc-request)
226 (define-key riece-dialogue-mode-map "\C-ds" 'riece-command-dcc-send)
227 (define-key riece-dialogue-mode-map "\C-dr" 'riece-command-dcc-receive))
229 (provide 'riece-ndcc)
231 ;;; riece-ndcc.el ends here