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 from (concat (nnweb-decode-entities-string (match-string 1))
159 " <" (match-string 2) ">"))
160 (looking-at "by \\(.+\\) on ")
161 (setq from (nnweb-decode-entities-string (match-string 1))))
162 (goto-char (- (match-end 0) 5))
163 (search-forward " on ")
165 (nnslashdot-date-to-date
166 (buffer-substring (point) (progn (end-of-line) (point)))))
167 (setq lines (/ (abs (- (search-forward "<td ")
168 (search-forward "</td>")))
172 (if (looking-at ".*cid=\\([0-9]+\\)")
179 (make-full-mail-header
181 (concat subject " (" score ")")
183 (concat "<" (nnslashdot-sid-strip sid) "%"
184 (number-to-string (1+ article))
187 (concat "<" (nnslashdot-sid-strip sid) "%"
188 (number-to-string (1+ (string-to-number parent)))
193 (setq nnslashdot-headers (sort headers 'car-less-than-car))
195 (set-buffer nntp-server-buffer)
197 (dolist (header nnslashdot-headers)
198 (nnheader-insert-nov (cdr header))))
201 (deffoo nnslashdot-sane-retrieve-headers (articles group)
202 (let ((last (car (last articles)))
204 (start (max (1- (car articles)) 1))
205 (sid (caddr (assoc group nnslashdot-groups)))
206 headers article subject score from date lines parent point)
208 (set-buffer nnslashdot-buffer)
211 (nnweb-insert (format nnslashdot-article-url
212 (nnslashdot-sid-strip sid)) t)
213 (goto-char (point-min))
214 (search-forward "Posted by ")
215 (when (looking-at "<a[^>]+>\\([^<]+\\)")
216 (setq from (nnweb-decode-entities-string (match-string 1))))
217 (search-forward " on ")
218 (setq date (nnslashdot-date-to-date
219 (buffer-substring (point) (1- (search-forward "<")))))
221 (setq lines (count-lines (point)
223 "A href=\"\\(http://slashdot.org\\)?/article")))
227 (make-full-mail-header
228 1 group from date (concat "<" (nnslashdot-sid-strip sid)
232 (while (or (not article)
236 (setq start (1+ article)))
237 (setq point (goto-char (point-max)))
239 (format nnslashdot-comments-url (nnslashdot-sid-strip sid)
240 nnslashdot-threshold 4 start)
243 (while (re-search-forward
244 "<a name=\"\\([0-9]+\\)\"><\\(b\\|H4\\)>\\([^<]+\\)</\\(b\\|H4\\)>.*score:\\([^)]+\\))"
246 (setq article (string-to-number (match-string 1))
247 subject (match-string 3)
248 score (match-string 5))
249 (when (string-match "^Re: *" subject)
250 (setq subject (concat "Re: " (substring subject (match-end 0)))))
251 (setq subject (nnweb-decode-entities-string subject))
254 "by <a[^>]+>\\([^<]+\\)</a>[ \t\n]*.*(\\([^)]+\\))")
255 (setq from (concat (nnweb-decode-entities-string (match-string 1))
256 " <" (match-string 2) ">"))
257 (looking-at "by \\(.+\\) on ")
258 (setq from (nnweb-decode-entities-string (match-string 1))))
259 (goto-char (- (match-end 0) 5))
260 (search-forward " on ")
262 (nnslashdot-date-to-date
263 (buffer-substring (point) (progn (end-of-line) (point)))))
264 (setq lines (/ (abs (- (search-forward "<td ")
265 (search-forward "</td>")))
269 (if (looking-at ".*cid=\\([0-9]+\\)")
276 (make-full-mail-header
277 (1+ article) (concat subject " (" score ")")
279 (concat "<" (nnslashdot-sid-strip sid) "%"
280 (number-to-string (1+ article))
283 (concat "<" (nnslashdot-sid-strip sid) "%"
284 (number-to-string (1+ (string-to-number parent)))
289 (setq nnslashdot-headers
290 (sort headers (lambda (s1 s2) (< (car s1) (car s2)))))
292 (set-buffer nntp-server-buffer)
294 (dolist (header nnslashdot-headers)
295 (nnheader-insert-nov (cdr header))))
298 (deffoo nnslashdot-request-group (group &optional server dont-check)
299 (nnslashdot-possibly-change-server nil server)
300 (let ((elem (assoc group nnslashdot-groups)))
303 (nnheader-report 'nnslashdot "Group does not exist"))
305 (nnheader-report 'nnslashdot "Opened group %s" group)
307 "211 %d %d %d %s\n" (cadr elem) 1 (cadr elem)
308 (prin1-to-string group))))))
310 (deffoo nnslashdot-close-group (group &optional server)
311 (nnslashdot-possibly-change-server group server)
312 (when (gnus-buffer-live-p nnslashdot-buffer)
314 (set-buffer nnslashdot-buffer)
315 (kill-buffer nnslashdot-buffer)))
318 (deffoo nnslashdot-request-article (article &optional group server buffer)
319 (nnslashdot-possibly-change-server group server)
323 (set-buffer nnslashdot-buffer)
324 (let ((case-fold-search t))
325 (goto-char (point-min))
326 (when (and (stringp article)
327 (string-match "%\\([0-9]+\\)@" article))
328 (setq article (string-to-number (match-string 1 article))))
329 (when (numberp article)
332 (re-search-forward "Posted by *<[^>]+>[^>]*<[^>]+> *on ")
333 (search-forward "<BR>")
339 "<p>.*A href=\"\\(http://slashdot.org\\)?/article")
340 (match-beginning 0)))))
341 (search-forward (format "<a name=\"%d\">" (1- article)))
344 (re-search-forward "<td[^>]+>")
345 (search-forward "</td>")))))))
346 (search-failed (nnslashdot-lose why)))
350 (set-buffer (or buffer nntp-server-buffer))
353 (goto-char (point-min))
354 (while (re-search-forward "\\(<br>\r?\\)+" nil t)
355 (replace-match "<p>" t t))
356 (goto-char (point-min))
357 (insert "Content-Type: text/html\nMIME-Version: 1.0\n")
358 (insert "Newsgroups: " (caddr (assoc group nnslashdot-groups))
360 (let ((header (cdr (assq article nnslashdot-headers))))
361 (nnheader-insert-header header))
362 (nnheader-report 'nnslashdot "Fetched article %s" article)
363 (cons group article)))))
365 (deffoo nnslashdot-close-server (&optional server)
366 (when (and (nnslashdot-server-opened server)
367 (gnus-buffer-live-p nnslashdot-buffer))
369 (set-buffer nnslashdot-buffer)
370 (kill-buffer nnslashdot-buffer)))
371 (nnoo-close-server 'nnslashdot server))
373 (deffoo nnslashdot-request-list (&optional server)
374 (nnslashdot-possibly-change-server nil server)
376 sid elem description articles gname)
378 ;; First we do the Ultramode to get info on all the latest groups.
380 (mm-with-unibyte-buffer
381 (nnweb-insert "http://slashdot.org/slashdot.xml" t)
382 (goto-char (point-min))
383 (while (search-forward "<story>" nil t)
384 (narrow-to-region (point) (search-forward "</story>"))
385 (goto-char (point-min))
386 (re-search-forward "<title>\\([^<]+\\)</title>")
388 (nnweb-decode-entities-string (match-string 1)))
389 (re-search-forward "<url>\\([^<]+\\)</url>")
390 (setq sid (match-string 1))
391 (string-match "/\\([0-9/]+\\)\\(.shtml\\|$\\)" sid)
392 (setq sid (concat "00/" (match-string 1 sid)))
393 (re-search-forward "<comments>\\([^<]+\\)</comments>")
394 (setq articles (string-to-number (match-string 1)))
395 (setq gname (concat description " (" sid ")"))
396 (if (setq elem (assoc gname nnslashdot-groups))
397 (setcar (cdr elem) articles)
398 (push (list gname articles sid) nnslashdot-groups))
399 (goto-char (point-max))
401 ;; Then do the older groups.
402 (while (> (- nnslashdot-group-number number) 0)
403 (mm-with-unibyte-buffer
404 (let ((case-fold-search t))
405 (nnweb-insert (format nnslashdot-active-url number) t)
406 (goto-char (point-min))
407 (while (re-search-forward
408 "article.pl\\?sid=\\([^&]+\\).*<b>\\([^<]+\\)</b>"
410 (setq sid (match-string 1)
412 (nnweb-decode-entities-string (match-string 2)))
414 (when (re-search-forward "<b>\\([0-9]+\\)</b>" nil t)
415 (setq articles (string-to-number (match-string 1))))
416 (setq gname (concat description " (" sid ")"))
417 (if (setq elem (assoc gname nnslashdot-groups))
418 (setcar (cdr elem) articles)
419 (push (list gname articles sid) nnslashdot-groups)))))
421 (search-failed (nnslashdot-lose why)))
422 (nnslashdot-write-groups)
423 (nnslashdot-generate-active)
426 (deffoo nnslashdot-request-newgroups (date &optional server)
427 (nnslashdot-possibly-change-server nil server)
428 (nnslashdot-generate-active)
431 (deffoo nnslashdot-request-post (&optional server)
432 (nnslashdot-possibly-change-server nil server)
433 (let ((sid (nnslashdot-sid-strip (message-fetch-field "newsgroups")))
434 (subject (message-fetch-field "subject"))
435 (references (car (last (split-string
436 (message-fetch-field "references")))))
438 (string-match "%\\([0-9]+\\)@slashdot" references)
439 (setq pid (match-string 1 references))
441 (narrow-to-region (point) (progn (message-goto-signature) (point)))
442 (goto-char (point-min))
444 (if (looking-at "> ")
446 (delete-region (point) (+ (point) 2))
448 (insert "<blockquote>\n"))
451 (insert "</blockquote>\n")
454 (goto-char (point-min))
455 (while (re-search-forward "^ *\n" nil t)
456 (replace-match "<p>\n"))
458 (when (message-goto-signature)
466 (setq body (buffer-substring (point) (point-max)))
469 "http://slashdot.org/comments.pl"
472 ("rlogin" . "userlogin")
473 ("unickname" . ,nnslashdot-login-name)
474 ("upasswd" . ,nnslashdot-password)
475 ("postersubj" . ,subject)
477 ("postercomment" . ,body)
478 ("posttype" . "html")))))
480 (deffoo nnslashdot-request-delete-group (group &optional force server)
481 (nnslashdot-possibly-change-server group server)
482 (setq nnslashdot-groups (delq (assoc group nnslashdot-groups)
484 (nnslashdot-write-groups))
486 (nnoo-define-skeleton nnslashdot)
488 ;;; Internal functions
490 (defun nnslashdot-possibly-change-server (&optional group server)
491 (nnslashdot-init server)
493 (not (nnslashdot-server-opened server)))
494 (nnslashdot-open-server server))
495 (unless nnslashdot-groups
496 (nnslashdot-read-groups)))
498 (defun nnslashdot-read-groups ()
499 (let ((file (expand-file-name "groups" nnslashdot-directory)))
500 (when (file-exists-p file)
501 (mm-with-unibyte-buffer
502 (insert-file-contents file)
503 (goto-char (point-min))
504 (setq nnslashdot-groups (read (current-buffer)))))))
506 (defun nnslashdot-write-groups ()
507 (with-temp-file (expand-file-name "groups" nnslashdot-directory)
508 (prin1 nnslashdot-groups (current-buffer))))
510 (defun nnslashdot-init (server)
511 "Initialize buffers and such."
512 (unless (file-exists-p nnslashdot-directory)
513 (gnus-make-directory nnslashdot-directory))
514 (unless (gnus-buffer-live-p nnslashdot-buffer)
515 (setq nnslashdot-buffer
517 (nnheader-set-temp-buffer
518 (format " *nnslashdot %s*" server))))))
520 (defun nnslashdot-date-to-date (sdate)
522 (let ((elem (delete "" (split-string sdate))))
523 (concat (substring (nth 0 elem) 0 3) " "
524 (substring (nth 1 elem) 0 3) " "
525 (substring (nth 2 elem) 0 2) " "
526 (substring (nth 3 elem) 1 6) " "
527 (format-time-string "%Y") " "
531 (defun nnslashdot-generate-active ()
533 (set-buffer nntp-server-buffer)
535 (dolist (elem nnslashdot-groups)
536 (insert (prin1-to-string (car elem))
537 " " (number-to-string (cadr elem)) " 1 y\n"))))
539 (defun nnslashdot-lose (why)
540 (error "Slashdot HTML has changed; please get a new version of nnslashdot"))
542 (defun nnslashdot-sid-strip (sid)
543 (if (string-match "^00/" sid)
544 (substring sid (match-end 0))
547 (provide 'nnslashdot)
549 ;;; nnslashdot.el ends here