1 ;;; riece-ndcc.el --- DCC file sending protocol support (written in elisp) -*- lexical-binding: t -*-
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., 51 Franklin Street, Fifth Floor,
22 ;; Boston, MA 02110-1301, USA.
26 ;; NOTE: This is an add-on module for Riece.
30 (require 'riece-globals)
31 (require 'riece-options)
33 (defgroup riece-ndcc nil
34 "DCC written in elisp."
38 (defcustom riece-ndcc-server-address "127.0.0.1"
39 "Local address of the DCC server.
40 Only used for sending files."
44 (defvar riece-ndcc-requests nil)
46 (defvar riece-ndcc-request-user nil)
47 (defvar riece-ndcc-request-size nil)
49 (defconst riece-ndcc-description
50 "DCC file sending protocol support (written in elisp.)")
52 (defun riece-ndcc-encode-address (address)
54 "^\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)$"
56 (error "% is not an IP address" address))
57 (let ((string (number-to-string
58 (+ (* (float (string-to-number (match-string 1 address)))
60 (* (float (string-to-number (match-string 2 address)))
62 (* (float (string-to-number (match-string 3 address)))
64 (float (string-to-number (match-string 4 address)))))))
65 (if (string-match "\\." string)
66 (substring string 0 (match-beginning 0))
69 (defun riece-ndcc-decode-address (address)
70 (let ((float-address (string-to-number (concat address ".0"))))
72 (floor (mod (/ float-address 16777216) 256))
73 (floor (mod (/ float-address 65536) 256))
74 (floor (mod (/ float-address 256) 256))
75 (floor (mod float-address 256)))))
77 (defun riece-ndcc-server-sentinel (process status)
78 (when (string-match "^open from " status)
80 (if (string-match " <[^>]+>$" (process-name process))
81 (substring (process-name process) 0 (match-beginning 0)))))
83 (set-buffer (process-buffer (get-process parent-name)))
84 (goto-char (point-min))
86 (process-send-region process
88 (goto-char (min (+ 1024 (point)) (point-max))))
89 (message "Sending %s...(%d/%d)"
90 (buffer-file-name) (1- (point)) (buffer-size)))
91 (message "Sending %s...done"
93 (kill-buffer (process-buffer (get-process parent-name))))
94 (kill-buffer (process-buffer process))))
96 (defun riece-command-dcc-send (user file)
98 (let ((completion-ignore-case t))
99 (unless riece-ndcc-server-address
100 (error "Set riece-ndcc-server-address to your host"))
101 (list (riece-completing-read-identity
103 (riece-get-users-on-server (riece-current-server-name)))
104 (expand-file-name (read-file-name "File: ")))))
105 (let* (selective-display
106 (coding-system-for-read 'binary)
108 jka-compr-compression-info-list
109 (buffer (find-file-noselect file))
111 (with-current-buffer buffer ;To throw an error when the
112 (setq buffer-read-only t)) ;process has input.
113 (setq process (make-network-process :name "DCC" :buffer buffer
114 :host riece-ndcc-server-address
117 :sentinel 'riece-ndcc-server-sentinel))
119 (format "PRIVMSG %s :\1DCC SEND %s %s %d %d\1\r\n"
120 (riece-identity-prefix user)
121 (file-name-nondirectory file)
122 (riece-ndcc-encode-address riece-ndcc-server-address)
123 (nth 1 (process-contact process))
124 (nth 7 (file-attributes file))))))
126 (defun riece-ndcc-filter (process input)
128 (set-buffer (process-buffer process))
129 (goto-char (point-max))
131 (message "Receiving %s from %s...(%d/%d)"
132 (file-name-nondirectory buffer-file-name)
133 riece-ndcc-request-user
135 riece-ndcc-request-size)))
137 (defun riece-ndcc-sentinel (process status)
139 (set-buffer (process-buffer process))
140 (unless (= (buffer-size) riece-ndcc-request-size)
141 (error "Premature end of file"))
142 (message "Receiving %s from %s...done"
143 (file-name-nondirectory buffer-file-name)
144 riece-ndcc-request-user)
145 (let ((coding-system-for-write 'binary))
148 (defun riece-command-dcc-receive (request file)
151 (unless riece-ndcc-requests
152 (error "No request"))
154 (if (= (length riece-ndcc-requests) 1)
155 (car riece-ndcc-requests)
156 (with-output-to-temp-buffer "*Help*"
157 (let ((requests riece-ndcc-requests)
160 (princ (format "%2d: %s %s (%d bytes)\n"
163 (nth 1 (car requests))
164 (nth 4 (car requests))))
165 (setq index (1+ index)
166 requests (cdr requests)))))
167 (let ((number (read-string "Request#: ")))
168 (unless (string-match "^[0-9]+$" number)
169 (error "Not a number"))
170 (if (or (> (setq number (string-to-number number))
171 (length riece-ndcc-requests))
173 (error "Invalid number"))
174 (nth (1- number) riece-ndcc-requests)))
175 (expand-file-name (read-file-name "Save as: ")))))
176 (let* (selective-display
177 (coding-system-for-read 'binary)
178 (coding-system-for-write 'binary)
179 (process (open-network-stream
181 (riece-ndcc-decode-address (nth 2 request))
183 (setq riece-ndcc-requests (delq request riece-ndcc-requests))
184 (with-current-buffer (process-buffer process)
185 (set-buffer-multibyte nil)
186 (buffer-disable-undo)
187 (setq buffer-file-name file)
188 (make-local-variable 'riece-ndcc-request-user)
189 (setq riece-ndcc-request-user (car request))
190 (make-local-variable 'riece-ndcc-request-size)
191 (setq riece-ndcc-request-size (nth 4 request)))
192 (set-process-filter process #'riece-ndcc-filter)
193 (set-process-sentinel process #'riece-ndcc-sentinel)))
195 (defun riece-handle-dcc-request (prefix target message)
196 (let ((case-fold-search t))
197 (when (and (get 'riece-ndcc 'riece-addon-enabled)
199 "SEND \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\) \\([^ ]+\\)"
201 (let ((file (match-string 1 message))
202 (address (match-string 2 message))
203 (port (string-to-number (match-string 3 message)))
204 (size (string-to-number (match-string 4 message)))
205 (buffer (if (riece-channel-p target)
206 (riece-channel-buffer (riece-make-identity
207 target riece-server-name))))
208 (user (riece-prefix-nickname prefix)))
209 (setq riece-ndcc-requests
210 (cons (list user file address port size)
211 riece-ndcc-requests))
212 (riece-insert-change buffer (format "DCC SEND from %s\n" user))
214 (if (and riece-channel-buffer-mode
215 (not (eq buffer riece-channel-buffer)))
216 (list riece-dialogue-buffer riece-others-buffer)
217 riece-dialogue-buffer)
219 (riece-concat-server-name
220 (format "DCC SEND from %s (%s) to %s"
222 (riece-strip-user-at-host
223 (riece-prefix-user-at-host prefix))
228 (defun riece-ndcc-requires ()
231 (defvar riece-dialogue-mode-map)
232 (defun riece-ndcc-insinuate ()
233 (unless (fboundp 'make-network-process)
234 (error "This Emacs does not have make-network-process"))
235 (add-hook 'riece-ctcp-dcc-request-hook 'riece-handle-dcc-request))
237 (defun riece-ndcc-uninstall ()
238 (remove-hook 'riece-ctcp-dcc-request-hook 'riece-handle-dcc-request))
240 (defun riece-ndcc-enable ()
241 (define-key riece-dialogue-mode-map "\C-ds" 'riece-command-dcc-send)
242 (define-key riece-dialogue-mode-map "\C-dr" 'riece-command-dcc-receive))
244 (defun riece-ndcc-disable ()
245 (define-key riece-dialogue-mode-map "\C-ds" nil)
246 (define-key riece-dialogue-mode-map "\C-dr" nil))
248 (provide 'riece-ndcc)
250 ;;; riece-ndcc.el ends here