1 ;;; nnslashdot.el --- interfacing with Slashdot
2 ;; Copyright (C) 1999, 2000 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs 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 ;; GNU Emacs 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: You need to have `url' and `w3' installed for this
31 (eval-when-compile (require 'cl))
42 ;; Report failure to find w3 at load time if appropriate.
43 (eval '(require 'nnweb))
45 (nnoo-declare nnslashdot)
47 (defvoo nnslashdot-directory (nnheader-concat gnus-directory "slashdot/")
48 "Where nnslashdot will save its files.")
50 (defvoo nnslashdot-active-url "http://slashdot.org/search.pl?section=&min=%d"
51 "Where nnslashdot will fetch the active file from.")
53 (defvoo nnslashdot-comments-url "http://slashdot.org/comments.pl?sid=%s&threshold=%d&commentsort=%d&mode=flat&startat=%d"
54 "Where nnslashdot will fetch comments from.")
56 (defvoo nnslashdot-article-url
57 "http://slashdot.org/article.pl?sid=%s&mode=nocomment"
58 "Where nnslashdot will fetch the article from.")
60 (defvoo nnslashdot-threshold -1
61 "The article threshold.")
63 (defvoo nnslashdot-threaded t
64 "Whether the nnslashdot groups should be threaded or not.")
66 (defvoo nnslashdot-group-number 0
67 "The number of non-fresh groups to keep updated.")
69 (defvoo nnslashdot-login-name ""
70 "The login name to use when posting.")
72 (defvoo nnslashdot-password ""
73 "The password to use when posting.")
75 ;;; Internal variables
77 (defvar nnslashdot-groups nil)
78 (defvar nnslashdot-buffer nil)
79 (defvar nnslashdot-headers nil)
81 ;;; Interface functions
83 (nnoo-define-basics nnslashdot)
85 (deffoo nnslashdot-retrieve-headers (articles &optional group server fetch-old)
86 (nnslashdot-possibly-change-server group server)
88 (unless gnus-nov-is-evil
89 (if nnslashdot-threaded
90 (nnslashdot-threaded-retrieve-headers articles group)
91 (nnslashdot-sane-retrieve-headers articles group)))
92 (search-failed (nnslashdot-lose why))))
94 (deffoo nnslashdot-threaded-retrieve-headers (articles group)
95 (let ((last (car (last articles)))
98 (sid (caddr (assoc group nnslashdot-groups)))
101 headers article subject score from date lines parent point s)
103 (set-buffer nnslashdot-buffer)
104 (let ((case-fold-search t))
107 (nnweb-insert (format nnslashdot-article-url
108 (nnslashdot-sid-strip sid)) t)
109 (goto-char (point-min))
110 (search-forward "Posted by ")
111 (when (looking-at "<a[^>]+>\\([^<]+\\)")
112 (setq from (nnweb-decode-entities-string (match-string 1))))
113 (search-forward " on ")
114 (setq date (nnslashdot-date-to-date
115 (buffer-substring (point) (1- (search-forward "<")))))
117 (setq lines (count-lines
120 "A href=\"\\(http://slashdot.org\\)?/article" nil t)))
124 (make-full-mail-header
126 (concat "<" (nnslashdot-sid-strip sid) "%1@slashdot>")
129 (while (and (setq start (pop startats))
131 (setq point (goto-char (point-max)))
133 (format nnslashdot-comments-url
134 (nnslashdot-sid-strip sid)
135 nnslashdot-threshold 0 start)
138 (setq first-comments nil)
139 (goto-char (point-max))
140 (while (re-search-backward "startat=\\([0-9]+\\)" nil t)
141 (setq s (string-to-number (match-string 1)))
142 (unless (memq s startats)
144 (setq startats (sort startats '<)))
146 (while (re-search-forward
147 "<a name=\"\\([0-9]+\\)\"><\\(b\\|H4\\)>\\([^<]+\\)</\\(b\\|H4\\)>.*score:\\([^)]+\\))"
149 (setq article (string-to-number (match-string 1))
150 subject (match-string 3)
151 score (match-string 5))
152 (when (string-match "^Re: *" subject)
153 (setq subject (concat "Re: " (substring subject (match-end 0)))))
154 (setq subject (nnweb-decode-entities-string subject))
157 "by <a[^>]+>\\([^<]+\\)</a>[ \t\n]*.*(\\([^)]+\\))")
158 (setq point (match-end 0)
160 (nnweb-decode-entities-string (match-string 1))
161 " <" (match-string 2) ">"))
162 (looking-at "by \\(.+\\) on ")
163 (setq point (match-end 0)
164 from (nnweb-decode-entities-string (match-string 1))))
165 (goto-char (- point 5))
166 (search-forward " on ")
168 (nnslashdot-date-to-date
169 (buffer-substring (point) (progn (end-of-line) (point)))))
170 (setq lines (/ (abs (- (search-forward "<td ")
171 (search-forward "</td>")))
175 (if (looking-at ".*cid=\\([0-9]+\\)")
182 (make-full-mail-header
184 (concat subject " (" score ")")
186 (concat "<" (nnslashdot-sid-strip sid) "%"
187 (number-to-string (1+ article))
190 (concat "<" (nnslashdot-sid-strip sid) "%"
191 (number-to-string (1+ (string-to-number parent)))
196 (setq nnslashdot-headers (sort headers 'car-less-than-car))
198 (set-buffer nntp-server-buffer)
200 (mm-with-unibyte-current-buffer
201 (dolist (header nnslashdot-headers)
202 (nnheader-insert-nov (cdr header)))))
205 (deffoo nnslashdot-sane-retrieve-headers (articles group)
206 (let ((last (car (last articles)))
208 (start (max (1- (car articles)) 1))
209 (sid (caddr (assoc group nnslashdot-groups)))
210 headers article subject score from date lines parent point)
212 (set-buffer nnslashdot-buffer)
215 (nnweb-insert (format nnslashdot-article-url
216 (nnslashdot-sid-strip sid)) t)
217 (goto-char (point-min))
218 (search-forward "Posted by ")
219 (when (looking-at "<a[^>]+>\\([^<]+\\)")
220 (setq from (nnweb-decode-entities-string (match-string 1))))
221 (search-forward " on ")
222 (setq date (nnslashdot-date-to-date
223 (buffer-substring (point) (1- (search-forward "<")))))
225 (setq lines (count-lines (point)
227 "A href=\"\\(http://slashdot.org\\)?/article")))
231 (make-full-mail-header
232 1 group from date (concat "<" (nnslashdot-sid-strip sid)
236 (while (or (not article)
240 (setq start (1+ article)))
241 (setq point (goto-char (point-max)))
243 (format nnslashdot-comments-url (nnslashdot-sid-strip sid)
244 nnslashdot-threshold 4 start)
247 (while (re-search-forward
248 "<a name=\"\\([0-9]+\\)\"><\\(b\\|H4\\)>\\([^<]+\\)</\\(b\\|H4\\)>.*score:\\([^)]+\\))"
250 (setq article (string-to-number (match-string 1))
251 subject (match-string 3)
252 score (match-string 5))
253 (when (string-match "^Re: *" subject)
254 (setq subject (concat "Re: " (substring subject (match-end 0)))))
255 (setq subject (nnweb-decode-entities-string subject))
258 "by <a[^>]+>\\([^<]+\\)</a>[ \t\n]*.*(\\([^)]+\\))")
259 (setq from (concat (nnweb-decode-entities-string (match-string 1))
260 " <" (match-string 2) ">"))
261 (looking-at "by \\(.+\\) on ")
262 (setq from (nnweb-decode-entities-string (match-string 1))))
263 (goto-char (- (match-end 0) 5))
264 (search-forward " on ")
266 (nnslashdot-date-to-date
267 (buffer-substring (point) (progn (end-of-line) (point)))))
268 (setq lines (/ (abs (- (search-forward "<td ")
269 (search-forward "</td>")))
273 (if (looking-at ".*cid=\\([0-9]+\\)")
280 (make-full-mail-header
281 (1+ article) (concat subject " (" score ")")
283 (concat "<" (nnslashdot-sid-strip sid) "%"
284 (number-to-string (1+ article))
287 (concat "<" (nnslashdot-sid-strip sid) "%"
288 (number-to-string (1+ (string-to-number parent)))
293 (setq nnslashdot-headers
294 (sort headers (lambda (s1 s2) (< (car s1) (car s2)))))
296 (set-buffer nntp-server-buffer)
298 (mm-with-unibyte-current-buffer
299 (dolist (header nnslashdot-headers)
300 (nnheader-insert-nov (cdr header)))))
303 (deffoo nnslashdot-request-group (group &optional server dont-check)
304 (nnslashdot-possibly-change-server nil server)
305 (let ((elem (assoc group nnslashdot-groups)))
308 (nnheader-report 'nnslashdot "Group does not exist"))
310 (nnheader-report 'nnslashdot "Opened group %s" group)
312 "211 %d %d %d %s\n" (cadr elem) 1 (cadr elem)
313 (prin1-to-string group))))))
315 (deffoo nnslashdot-close-group (group &optional server)
316 (nnslashdot-possibly-change-server group server)
317 (when (gnus-buffer-live-p nnslashdot-buffer)
319 (set-buffer nnslashdot-buffer)
320 (kill-buffer nnslashdot-buffer)))
323 (deffoo nnslashdot-request-article (article &optional group server buffer)
324 (nnslashdot-possibly-change-server group server)
328 (set-buffer nnslashdot-buffer)
329 (let ((case-fold-search t))
330 (goto-char (point-min))
331 (when (and (stringp article)
332 (string-match "%\\([0-9]+\\)@" article))
333 (setq article (string-to-number (match-string 1 article))))
334 (when (numberp article)
337 (re-search-forward "Posted by *<[^>]+>[^>]*<[^>]+> *on ")
338 (search-forward "<BR>")
344 "<p>.*A href=\"\\(http://slashdot.org\\)?/article")
345 (match-beginning 0)))))
346 (search-forward (format "<a name=\"%d\">" (1- article)))
349 (re-search-forward "<td[^>]+>")
350 (search-forward "</td>")))))))
351 (search-failed (nnslashdot-lose why)))
355 (set-buffer (or buffer nntp-server-buffer))
357 (mm-with-unibyte-current-buffer
359 (goto-char (point-min))
360 (while (re-search-forward "\\(<br>\r?\\)+" nil t)
361 (replace-match "<p>" t t))
362 (goto-char (point-min))
363 (insert "Content-Type: text/html\nMIME-Version: 1.0\n")
364 (insert "Newsgroups: " (caddr (assoc group nnslashdot-groups))
366 (let ((header (cdr (assq article nnslashdot-headers))))
367 (nnheader-insert-header header))
368 (nnheader-report 'nnslashdot "Fetched article %s" article))
369 (cons group article)))))
371 (deffoo nnslashdot-close-server (&optional server)
372 (when (and (nnslashdot-server-opened server)
373 (gnus-buffer-live-p nnslashdot-buffer))
375 (set-buffer nnslashdot-buffer)
376 (kill-buffer nnslashdot-buffer)))
377 (nnoo-close-server 'nnslashdot server))
379 (deffoo nnslashdot-request-list (&optional server)
380 (nnslashdot-possibly-change-server nil server)
382 sid elem description articles gname)
384 ;; First we do the Ultramode to get info on all the latest groups.
386 (mm-with-unibyte-buffer
387 (nnweb-insert "http://slashdot.org/slashdot.xml" t)
388 (goto-char (point-min))
389 (while (search-forward "<story>" nil t)
390 (narrow-to-region (point) (search-forward "</story>"))
391 (goto-char (point-min))
392 (re-search-forward "<title>\\([^<]+\\)</title>")
394 (nnweb-decode-entities-string (match-string 1)))
395 (re-search-forward "<url>\\([^<]+\\)</url>")
396 (setq sid (match-string 1))
397 (string-match "/\\([0-9/]+\\)\\(.shtml\\|$\\)" sid)
398 (setq sid (concat "00/" (match-string 1 sid)))
399 (re-search-forward "<comments>\\([^<]+\\)</comments>")
400 (setq articles (string-to-number (match-string 1)))
401 (setq gname (concat description " (" sid ")"))
402 (if (setq elem (assoc gname nnslashdot-groups))
403 (setcar (cdr elem) articles)
404 (push (list gname articles sid) nnslashdot-groups))
405 (goto-char (point-max))
407 ;; Then do the older groups.
408 (while (> (- nnslashdot-group-number number) 0)
409 (mm-with-unibyte-buffer
410 (let ((case-fold-search t))
411 (nnweb-insert (format nnslashdot-active-url number) t)
412 (goto-char (point-min))
413 (while (re-search-forward
414 "article.pl\\?sid=\\([^&]+\\).*<b>\\([^<]+\\)</b>"
416 (setq sid (match-string 1)
418 (nnweb-decode-entities-string (match-string 2)))
420 (when (re-search-forward "<b>\\([0-9]+\\)</b>" nil t)
421 (setq articles (string-to-number (match-string 1))))
422 (setq gname (concat description " (" sid ")"))
423 (if (setq elem (assoc gname nnslashdot-groups))
424 (setcar (cdr elem) articles)
425 (push (list gname articles sid) nnslashdot-groups)))))
427 (search-failed (nnslashdot-lose why)))
428 (nnslashdot-write-groups)
429 (nnslashdot-generate-active)
432 (deffoo nnslashdot-request-newgroups (date &optional server)
433 (nnslashdot-possibly-change-server nil server)
434 (nnslashdot-generate-active)
437 (deffoo nnslashdot-request-post (&optional server)
438 (nnslashdot-possibly-change-server nil server)
439 (let ((sid (nnslashdot-sid-strip (message-fetch-field "newsgroups")))
440 (subject (message-fetch-field "subject"))
441 (references (car (last (split-string
442 (message-fetch-field "references")))))
444 (string-match "%\\([0-9]+\\)@slashdot" references)
445 (setq pid (match-string 1 references))
447 (narrow-to-region (point) (progn (message-goto-signature) (point)))
448 (goto-char (point-min))
450 (if (looking-at "> ")
452 (delete-region (point) (+ (point) 2))
454 (insert "<blockquote>\n"))
457 (insert "</blockquote>\n")
460 (goto-char (point-min))
461 (while (re-search-forward "^ *\n" nil t)
462 (replace-match "<p>\n"))
464 (when (message-goto-signature)
472 (setq body (buffer-substring (point) (point-max)))
475 "http://slashdot.org/comments.pl"
478 ("rlogin" . "userlogin")
479 ("unickname" . ,nnslashdot-login-name)
480 ("upasswd" . ,nnslashdot-password)
481 ("postersubj" . ,subject)
483 ("postercomment" . ,body)
484 ("posttype" . "html")))))
486 (deffoo nnslashdot-request-delete-group (group &optional force server)
487 (nnslashdot-possibly-change-server group server)
488 (setq nnslashdot-groups (delq (assoc group nnslashdot-groups)
490 (nnslashdot-write-groups))
492 (nnoo-define-skeleton nnslashdot)
494 ;;; Internal functions
496 (defun nnslashdot-possibly-change-server (&optional group server)
497 (nnslashdot-init server)
499 (not (nnslashdot-server-opened server)))
500 (nnslashdot-open-server server))
501 (unless nnslashdot-groups
502 (nnslashdot-read-groups)))
504 (defun nnslashdot-read-groups ()
505 (let ((file (expand-file-name "groups" nnslashdot-directory)))
506 (when (file-exists-p file)
507 (mm-with-unibyte-buffer
508 (insert-file-contents file)
509 (goto-char (point-min))
510 (setq nnslashdot-groups (read (current-buffer)))))))
512 (defun nnslashdot-write-groups ()
513 (with-temp-file (expand-file-name "groups" nnslashdot-directory)
514 (prin1 nnslashdot-groups (current-buffer))))
516 (defun nnslashdot-init (server)
517 "Initialize buffers and such."
518 (unless (file-exists-p nnslashdot-directory)
519 (gnus-make-directory nnslashdot-directory))
520 (unless (gnus-buffer-live-p nnslashdot-buffer)
521 (setq nnslashdot-buffer
523 (nnheader-set-temp-buffer
524 (format " *nnslashdot %s*" server))))))
526 (defun nnslashdot-date-to-date (sdate)
528 (let ((elem (delete "" (split-string sdate))))
529 (concat (substring (nth 0 elem) 0 3) " "
530 (substring (nth 1 elem) 0 3) " "
531 (substring (nth 2 elem) 0 2) " "
532 (substring (nth 3 elem) 1 6) " "
533 (format-time-string "%Y") " "
537 (defun nnslashdot-generate-active ()
539 (set-buffer nntp-server-buffer)
541 (dolist (elem nnslashdot-groups)
542 (insert (prin1-to-string (car elem))
543 " " (number-to-string (cadr elem)) " 1 y\n"))))
545 (defun nnslashdot-lose (why)
546 (error "Slashdot HTML has changed; please get a new version of nnslashdot"))
548 ;(defun nnslashdot-sid-strip (sid)
549 ; (if (string-match "^00/" sid)
550 ; (substring sid (match-end 0))
553 (defalias 'nnslashdot-sid-strip 'identity)
555 (provide 'nnslashdot)
557 ;;; nnslashdot.el ends here