/usr/share/emacs/site-lisp/w3m/shimbun/sb-cgi-board.el is in w3m-el 1.4.483+0.20120614-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | ;;; sb-cgi-board.el --- Shimbun backend for CGI_Board bulletin board systems
;; Author: TSUCHIYA Masatoshi <tsuchiya@namazu.org>
;; Keywords: shimbun
;; This file is a part of shimbun.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; This is a shimbun backend to browse CGI_Board bulletin board
;; systems, developed by KUROKI Gen <kuroki@math.tohoku.ac.jp>.
;;; Code:
(require 'shimbun)
(eval-when-compile
(require 'cl)
;; `multiple-value-bind' requires the 2nd argument to be multiple-value,
;; not a list, in particular for XEmacs 21.5. `values-list' does it,
;; but is a run-time cl function in XEmacs 21.4 and Emacs 21.
(when (eq 'identity (symbol-function 'values-list))
(define-compiler-macro values-list (arg)
arg)))
(defcustom shimbun-cgi-board-group-alist
'(("support" .
"http://www.math.tohoku.ac.jp/~kuroki/support/BBS.cgi?b=cgi_board")
("kuroki.a" .
"http://www.math.tohoku.ac.jp/~kuroki/keijiban/BBS.cgi?b=a")
("kuroki.b" .
"http://www.math.tohoku.ac.jp/~kuroki/keijiban/BBS.cgi?b=b")
("kuroki.c" .
"http://www.math.tohoku.ac.jp/~kuroki/keijiban/BBS.cgi?b=c")
("kuroki.e" .
"http://www.math.tohoku.ac.jp/~kuroki/keijiban/BBS.cgi?b=e")
("nojiri" .
"http://njb.virtualave.net/BBS.cgi?b=nmain")
("yamagata" .
"http://ruitomo.com/~hiroo/bbs/BBS.cgi?b=kohobu"))
"*An alist of CGI_Board bulletin board systems and their URLs."
:group 'shimbun
:type '(repeat
(cons :format "%v" :indent 4
(string :tag "Name")
(string :tag " URL"))))
(luna-define-class shimbun-cgi-board (shimbun) ())
(luna-define-method shimbun-groups ((shimbun shimbun-cgi-board))
(mapcar 'car shimbun-cgi-board-group-alist))
(defsubst shimbun-cgi-board-base-url (shimbun)
(cdr (assoc (shimbun-current-group-internal shimbun)
shimbun-cgi-board-group-alist)))
(luna-define-method shimbun-index-url ((shimbun shimbun-cgi-board))
(concat (shimbun-cgi-board-base-url shimbun) "&old"))
(luna-define-method shimbun-x-face ((shimbun shimbun-cgi-board))
nil)
(luna-define-method shimbun-get-headers ((shimbun shimbun-cgi-board)
&optional range)
(catch 'found
(let ((base (shimbun-cgi-board-base-url shimbun))
(no-cache t)
(headers))
(dolist (page (shimbun-cgi-board-get-pages range))
(let (buffer header)
(unwind-protect
(with-temp-buffer
(when (shimbun-fetch-url shimbun
(shimbun-expand-url page base)
no-cache)
(goto-char (point-min))
(while (re-search-forward
"\n<!--\\([^: \t\r\f\n]+\\):--><hr noshade>\n" nil t)
(let* ((fragment (match-string 1))
(id (shimbun-cgi-board-make-message-id base
fragment)))
(when (shimbun-search-id shimbun id)
(throw 'found headers))
(unless buffer
(with-current-buffer
(setq buffer (generate-new-buffer " *temp*"))
(shimbun-fetch-url shimbun
(concat base "&thread&_f=" page))))
(when (setq header
(with-current-buffer buffer
(shimbun-cgi-board-extract-header base
fragment)))
(push header headers))))))
(when buffer
(kill-buffer buffer))))
(setq no-cache nil))
headers)))
(defconst shimbun-cgi-board-thread-regexp "\\( *\\)\\[\\([^]]+\\)\\] *\
<a name=\"\\([^\"]+\\)\" href=\"\\([^\"]+\\)\" target=\"article\">\\([^<]*\\)\
</a> *<small>(\\(.+\\))</small>")
(defun shimbun-cgi-board-extract-header (base fragment)
(let (header)
(goto-char (point-min))
(while (and (not header) (search-forward fragment nil t))
(forward-line 0)
(if (and (looking-at shimbun-cgi-board-thread-regexp)
(equal fragment (match-string 3)))
(let ((level (length (match-string 1)))
(url (shimbun-expand-url (match-string 4) base)))
(setq header
(shimbun-create-header
0
(let ((subject (match-string 5)))
(if (equal subject fragment) "" subject))
(match-string 2)
(shimbun-cgi-board-make-date-string (match-string 6))
(shimbun-cgi-board-make-message-id base (match-string 3))
nil nil nil url))
(when (> level 0)
;; Search a parent article.
(while (and (not (shimbun-header-references header))
(zerop (forward-line 1))
(not (looking-at "^$")))
(when (and (looking-at shimbun-cgi-board-thread-regexp)
(< (length (match-string 1)) level))
(shimbun-header-set-references
header
(shimbun-cgi-board-make-message-id base
(match-string 3)))))))
(forward-line 1)))
header))
(defun shimbun-cgi-board-make-date-string (string)
(save-match-data
(if (string-match
"\\`\\([0-9]+\\)/\\([0-9]+\\)/\\([0-9]+\\) \\([0-9:]+\\)\\'" string)
(shimbun-make-date-string (string-to-number (match-string 1 string))
(string-to-number (match-string 2 string))
(string-to-number (match-string 3 string))
(match-string 4 string))
(multiple-value-bind (sec min hour day month year dow dst zone)
(values-list (decode-time (shimbun-time-parse-string string)))
(setq zone (/ zone 60))
(shimbun-make-date-string year month day
(format "%02d:%02d" hour min)
(format "%s%02d%02d"
(if (>= zone 0) "+" "-")
(/ zone 60)
(% zone 60)))))))
(defun shimbun-cgi-board-get-pages (&optional range)
"Return a list of splited index pages."
(let ((pages)
(count 0)
(limit (shimbun-header-index-pages range)))
(goto-char (point-min))
(while (and (or (not limit) (<= (incf count) limit))
(re-search-forward
"<a href=\"\\./\\([^.]+\\.html\\)\" target=\"article\">"
nil t))
(push (match-string 1) pages))
(nreverse pages)))
(defun shimbun-cgi-board-make-message-id (url &optional fragment)
(save-match-data
(format "<%s@%s>"
(or fragment
(progn
(string-match "\\`[^#]*#" url)
(substring url (match-end 0))))
(progn
(string-match "\\`[^:/#?]+://\\([^/#?]+\\)/" url)
(match-string 1 url)))))
(luna-define-method shimbun-clear-contents ((shimbun shimbun-cgi-board) header)
(let ((id (shimbun-header-id header)))
(when (string-match "\\`<\\([^@]+\\)@" id)
(goto-char (point-min))
(let (start)
(when (and (search-forward
(concat "\n<!--" (match-string 1 id) ":-->") nil t)
(setq start (match-end 0))
(re-search-forward "<!--[^-]*-->\n" nil t))
(delete-region (match-beginning 0) (point-max))
(delete-region (point-min) start)
(goto-char (point-min))
(when (looking-at "<hr[^>]*>")
(delete-region (match-beginning 0) (match-end 0)))
t)))))
(provide 'sb-cgi-board)
;;; sb-cgi-board.el ends here
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