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))
32 (eval-when-compile (require 'gnus-clfns))
43 ;; Report failure to find w3 at load time if appropriate.
44 (eval '(require 'nnweb))
46 (nnoo-declare nnslashdot)
48 (defvoo nnslashdot-directory (nnheader-concat gnus-directory "slashdot/")
49 "Where nnslashdot will save its files.")
51 (defvoo nnslashdot-active-url "http://slashdot.org/search.pl?section=&min=%d"
52 "Where nnslashdot will fetch the active file from.")
54 (defvoo nnslashdot-comments-url "http://slashdot.org/comments.pl?sid=%s&threshold=%d&commentsort=%d&mode=flat&startat=%d"
55 "Where nnslashdot will fetch comments from.")
57 (defvoo nnslashdot-article-url
58 "http://slashdot.org/article.pl?sid=%s&mode=nocomment"
59 "Where nnslashdot will fetch the article from.")
61 (defvoo nnslashdot-threshold -1
62 "The article threshold.")
64 (defvoo nnslashdot-threaded t
65 "Whether the nnslashdot groups should be threaded or not.")
67 (defvoo nnslashdot-group-number 0
68 "The number of non-fresh groups to keep updated.")
70 (defvoo nnslashdot-login-name ""
71 "The login name to use when posting.")
73 (defvoo nnslashdot-password ""
74 "The password to use when posting.")
76 ;;; Internal variables
78 (defvar nnslashdot-groups nil)
79 (defvar nnslashdot-buffer nil)
80 (defvar nnslashdot-headers nil)
82 ;;; Interface functions
84 (nnoo-define-basics nnslashdot)
86 (deffoo nnslashdot-retrieve-headers (articles &optional group server fetch-old)
87 (nnslashdot-possibly-change-server group server)
89 (unless gnus-nov-is-evil
90 (if nnslashdot-threaded
91 (nnslashdot-threaded-retrieve-headers articles group)
92 (nnslashdot-sane-retrieve-headers articles group)))
93 (search-failed (nnslashdot-lose why))))
95 (deffoo nnslashdot-threaded-retrieve-headers (articles group)
96 (let ((last (car (last articles)))
99 (sid (caddr (assoc group nnslashdot-groups)))
102 headers article subject score from date lines parent point s)
104 (set-buffer nnslashdot-buffer)
105 (let ((case-fold-search t))
108 (nnweb-insert (format nnslashdot-article-url
109 (nnslashdot-sid-strip sid)) t)
110 (goto-char (point-min))
111 (search-forward "Posted by ")
112 (when (looking-at "<a[^>]+>\\([^<]+\\)")
113 (setq from (nnweb-decode-entities-string (match-string 1))))
114 (search-forward " on ")
115 (setq date (nnslashdot-date-to-date
116 (buffer-substring (point) (1- (search-forward "<")))))
117 (setq lines (/ (- (point)
118 (progn (forward-line 1) (point)))
123 (make-full-mail-header
125 (concat "<" (nnslashdot-sid-strip sid) "%1@slashdot>")
128 (while (and (setq start (pop startats))
130 (setq point (goto-char (point-max)))
132 (format nnslashdot-comments-url
133 (nnslashdot-sid-strip sid)
134 nnslashdot-threshold 0 start)
137 (setq first-comments nil)
138 (goto-char (point-max))
139 (while (re-search-backward "startat=\\([0-9]+\\)" nil t)
140 (setq s (string-to-number (match-string 1)))
141 (unless (memq s startats)
143 (setq startats (sort startats '<)))
145 (while (re-search-forward
146 "<a name=\"\\([0-9]+\\)\"><\\(b\\|H4\\)>\\([^<]+\\)</\\(b\\|H4\\)>.*score:\\([^)]+\\))"
148 (setq article (string-to-number (match-string 1))
149 subject (match-string 3)
150 score (match-string 5))
151 (when (string-match "^Re: *" subject)
152 (setq subject (concat "Re: " (substring subject (match-end 0)))))
153 (setq subject (nnweb-decode-entities-string subject))
156 "by <a[^>]+>\\([^<]+\\)</a>[ \t\n]*.*(\\([^)]+\\))")
158 (goto-char (- (match-end 0) 5))
160 (nnweb-decode-entities-string (match-string 1))
161 " <" (match-string 2) ">")))
163 (when (looking-at "by \\(.+\\) on ")
164 (goto-char (- (match-end 0) 5))
165 (setq from (nnweb-decode-entities-string (match-string 1)))))
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]*.*(\\([^)]+\\))")
260 (goto-char (- (match-end 0) 5))
262 (nnweb-decode-entities-string (match-string 1))
263 " <" (match-string 2) ">")))
265 (when (looking-at "by \\(.+\\) on ")
266 (goto-char (- (match-end 0) 5))
267 (setq from (nnweb-decode-entities-string (match-string 1)))))
268 (search-forward " on ")
270 (nnslashdot-date-to-date
271 (buffer-substring (point) (progn (end-of-line) (point)))))
272 (setq lines (/ (abs (- (search-forward "<td ")
273 (search-forward "</td>")))
277 (if (looking-at ".*cid=\\([0-9]+\\)")
284 (make-full-mail-header
285 (1+ article) (concat subject " (" score ")")
287 (concat "<" (nnslashdot-sid-strip sid) "%"
288 (number-to-string (1+ article))
291 (concat "<" (nnslashdot-sid-strip sid) "%"
292 (number-to-string (1+ (string-to-number parent)))
297 (setq nnslashdot-headers
298 (sort headers (lambda (s1 s2) (< (car s1) (car s2)))))
300 (set-buffer nntp-server-buffer)
302 (mm-with-unibyte-current-buffer
303 (dolist (header nnslashdot-headers)
304 (nnheader-insert-nov (cdr header)))))
307 (deffoo nnslashdot-request-group (group &optional server dont-check)
308 (nnslashdot-possibly-change-server nil server)
309 (let ((elem (assoc group nnslashdot-groups)))
312 (nnheader-report 'nnslashdot "Group does not exist"))
314 (nnheader-report 'nnslashdot "Opened group %s" group)
316 "211 %d %d %d %s\n" (cadr elem) 1 (cadr elem)
317 (prin1-to-string group))))))
319 (deffoo nnslashdot-close-group (group &optional server)
320 (nnslashdot-possibly-change-server group server)
321 (when (gnus-buffer-live-p nnslashdot-buffer)
323 (set-buffer nnslashdot-buffer)
324 (kill-buffer nnslashdot-buffer)))
327 (deffoo nnslashdot-request-article (article &optional group server buffer)
328 (nnslashdot-possibly-change-server group server)
332 (set-buffer nnslashdot-buffer)
333 (let ((case-fold-search t))
334 (goto-char (point-min))
335 (when (and (stringp article)
336 (string-match "%\\([0-9]+\\)@" article))
337 (setq article (string-to-number (match-string 1 article))))
338 (when (numberp article)
341 (re-search-forward "Posted by *<[^>]+>[^>]*<[^>]+> *on ")
342 (search-forward "<BR>")
348 "<p>.*A href=\"\\(http://slashdot.org\\)?/article")
349 (match-beginning 0)))))
350 (search-forward (format "<a name=\"%d\">" (1- article)))
353 (re-search-forward "<td[^>]+>")
354 (search-forward "</td>")))))))
355 (search-failed (nnslashdot-lose why)))
359 (set-buffer (or buffer nntp-server-buffer))
361 (mm-with-unibyte-current-buffer
363 (goto-char (point-min))
364 (while (re-search-forward "\\(<br>\r?\\)+" nil t)
365 (replace-match "<p>" t t))
366 (goto-char (point-min))
367 (insert "Content-Type: text/html\nMIME-Version: 1.0\n")
368 (insert "Newsgroups: " (caddr (assoc group nnslashdot-groups))
370 (let ((header (cdr (assq article nnslashdot-headers))))
371 (nnheader-insert-header header))
372 (nnheader-report 'nnslashdot "Fetched article %s" article))
373 (cons group article)))))
375 (deffoo nnslashdot-close-server (&optional server)
376 (when (and (nnslashdot-server-opened server)
377 (gnus-buffer-live-p nnslashdot-buffer))
379 (set-buffer nnslashdot-buffer)
380 (kill-buffer nnslashdot-buffer)))
381 (nnoo-close-server 'nnslashdot server))
383 (deffoo nnslashdot-request-list (&optional server)
384 (nnslashdot-possibly-change-server nil server)
386 sid elem description articles gname)
388 ;; First we do the Ultramode to get info on all the latest groups.
390 (mm-with-unibyte-buffer
391 (nnweb-insert "http://slashdot.org/slashdot.xml" t)
392 (goto-char (point-min))
393 (while (search-forward "<story>" nil t)
394 (narrow-to-region (point) (search-forward "</story>"))
395 (goto-char (point-min))
396 (re-search-forward "<title>\\([^<]+\\)</title>")
398 (nnweb-decode-entities-string (match-string 1)))
399 (re-search-forward "<url>\\([^<]+\\)</url>")
400 (setq sid (match-string 1))
401 (string-match "/\\([0-9/]+\\)\\(.shtml\\|$\\)" sid)
402 (setq sid (concat "00/" (match-string 1 sid)))
403 (re-search-forward "<comments>\\([^<]+\\)</comments>")
404 (setq articles (string-to-number (match-string 1)))
405 (setq gname (concat description " (" sid ")"))
406 (if (setq elem (assoc gname nnslashdot-groups))
407 (setcar (cdr elem) articles)
408 (push (list gname articles sid) nnslashdot-groups))
409 (goto-char (point-max))
411 ;; Then do the older groups.
412 (while (> (- nnslashdot-group-number number) 0)
413 (mm-with-unibyte-buffer
414 (let ((case-fold-search t))
415 (nnweb-insert (format nnslashdot-active-url number) t)
416 (goto-char (point-min))
417 (while (re-search-forward
418 "article.pl\\?sid=\\([^&]+\\).*<b>\\([^<]+\\)</b>"
420 (setq sid (match-string 1)
422 (nnweb-decode-entities-string (match-string 2)))
424 (when (re-search-forward "<b>\\([0-9]+\\)</b>" nil t)
425 (setq articles (string-to-number (match-string 1))))
426 (setq gname (concat description " (" sid ")"))
427 (if (setq elem (assoc gname nnslashdot-groups))
428 (setcar (cdr elem) articles)
429 (push (list gname articles sid) nnslashdot-groups)))))
431 (search-failed (nnslashdot-lose why)))
432 (nnslashdot-write-groups)
433 (nnslashdot-generate-active)
436 (deffoo nnslashdot-request-newgroups (date &optional server)
437 (nnslashdot-possibly-change-server nil server)
438 (nnslashdot-generate-active)
441 (deffoo nnslashdot-request-post (&optional server)
442 (nnslashdot-possibly-change-server nil server)
443 (let ((sid (nnslashdot-sid-strip (message-fetch-field "newsgroups")))
444 (subject (message-fetch-field "subject"))
445 (references (car (last (split-string
446 (message-fetch-field "references")))))
448 (string-match "%\\([0-9]+\\)@slashdot" references)
449 (setq pid (match-string 1 references))
451 (narrow-to-region (point) (progn (message-goto-signature) (point)))
452 (goto-char (point-min))
454 (if (looking-at "> ")
456 (delete-region (point) (+ (point) 2))
458 (insert "<blockquote>\n"))
461 (insert "</blockquote>\n")
464 (goto-char (point-min))
465 (while (re-search-forward "^ *\n" nil t)
466 (replace-match "<p>\n"))
468 (when (message-goto-signature)
476 (setq body (buffer-substring (point) (point-max)))
479 "http://slashdot.org/comments.pl"
482 ("rlogin" . "userlogin")
483 ("unickname" . ,nnslashdot-login-name)
484 ("upasswd" . ,nnslashdot-password)
485 ("postersubj" . ,subject)
487 ("postercomment" . ,body)
488 ("posttype" . "html")))))
490 (deffoo nnslashdot-request-delete-group (group &optional force server)
491 (nnslashdot-possibly-change-server group server)
492 (setq nnslashdot-groups (delq (assoc group nnslashdot-groups)
494 (nnslashdot-write-groups))
496 (deffoo nnslashdot-request-close ()
497 (setq nnslashdot-headers nil
498 nnslashdot-groups nil))
500 (nnoo-define-skeleton nnslashdot)
502 ;;; Internal functions
504 (defun nnslashdot-possibly-change-server (&optional group server)
505 (nnslashdot-init server)
507 (not (nnslashdot-server-opened server)))
508 (nnslashdot-open-server server))
509 (unless nnslashdot-groups
510 (nnslashdot-read-groups)))
512 (defun nnslashdot-read-groups ()
513 (let ((file (expand-file-name "groups" nnslashdot-directory)))
514 (when (file-exists-p file)
515 (mm-with-unibyte-buffer
516 (insert-file-contents file)
517 (goto-char (point-min))
518 (setq nnslashdot-groups (read (current-buffer)))))))
520 (defun nnslashdot-write-groups ()
521 (with-temp-file (expand-file-name "groups" nnslashdot-directory)
522 (prin1 nnslashdot-groups (current-buffer))))
524 (defun nnslashdot-init (server)
525 "Initialize buffers and such."
526 (unless (file-exists-p nnslashdot-directory)
527 (gnus-make-directory nnslashdot-directory))
528 (unless (gnus-buffer-live-p nnslashdot-buffer)
529 (setq nnslashdot-buffer
531 (nnheader-set-temp-buffer
532 (format " *nnslashdot %s*" server))))))
534 (defun nnslashdot-date-to-date (sdate)
536 (let ((elem (delete "" (split-string sdate))))
537 (concat (substring (nth 0 elem) 0 3) " "
538 (substring (nth 1 elem) 0 3) " "
539 (substring (nth 2 elem) 0 2) " "
540 (substring (nth 3 elem) 1 6) " "
541 (format-time-string "%Y") " "
545 (defun nnslashdot-generate-active ()
547 (set-buffer nntp-server-buffer)
549 (dolist (elem nnslashdot-groups)
550 (insert (prin1-to-string (car elem))
551 " " (number-to-string (cadr elem)) " 1 y\n"))))
553 (defun nnslashdot-lose (why)
554 (error "Slashdot HTML has changed; please get a new version of nnslashdot"))
556 ;(defun nnslashdot-sid-strip (sid)
557 ; (if (string-match "^00/" sid)
558 ; (substring sid (match-end 0))
561 (defalias 'nnslashdot-sid-strip 'identity)
563 (provide 'nnslashdot)
565 ;;; nnslashdot.el ends here