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 (mm-with-unibyte-current-buffer
198 (dolist (header nnslashdot-headers)
199 (nnheader-insert-nov (cdr header)))))
202 (deffoo nnslashdot-sane-retrieve-headers (articles group)
203 (let ((last (car (last articles)))
205 (start (max (1- (car articles)) 1))
206 (sid (caddr (assoc group nnslashdot-groups)))
207 headers article subject score from date lines parent point)
209 (set-buffer nnslashdot-buffer)
212 (nnweb-insert (format nnslashdot-article-url
213 (nnslashdot-sid-strip sid)) t)
214 (goto-char (point-min))
215 (search-forward "Posted by ")
216 (when (looking-at "<a[^>]+>\\([^<]+\\)")
217 (setq from (nnweb-decode-entities-string (match-string 1))))
218 (search-forward " on ")
219 (setq date (nnslashdot-date-to-date
220 (buffer-substring (point) (1- (search-forward "<")))))
222 (setq lines (count-lines (point)
224 "A href=\"\\(http://slashdot.org\\)?/article")))
228 (make-full-mail-header
229 1 group from date (concat "<" (nnslashdot-sid-strip sid)
233 (while (or (not article)
237 (setq start (1+ article)))
238 (setq point (goto-char (point-max)))
240 (format nnslashdot-comments-url (nnslashdot-sid-strip sid)
241 nnslashdot-threshold 4 start)
244 (while (re-search-forward
245 "<a name=\"\\([0-9]+\\)\"><\\(b\\|H4\\)>\\([^<]+\\)</\\(b\\|H4\\)>.*score:\\([^)]+\\))"
247 (setq article (string-to-number (match-string 1))
248 subject (match-string 3)
249 score (match-string 5))
250 (when (string-match "^Re: *" subject)
251 (setq subject (concat "Re: " (substring subject (match-end 0)))))
252 (setq subject (nnweb-decode-entities-string subject))
255 "by <a[^>]+>\\([^<]+\\)</a>[ \t\n]*.*(\\([^)]+\\))")
256 (setq from (concat (nnweb-decode-entities-string (match-string 1))
257 " <" (match-string 2) ">"))
258 (looking-at "by \\(.+\\) on ")
259 (setq from (nnweb-decode-entities-string (match-string 1))))
260 (goto-char (- (match-end 0) 5))
261 (search-forward " on ")
263 (nnslashdot-date-to-date
264 (buffer-substring (point) (progn (end-of-line) (point)))))
265 (setq lines (/ (abs (- (search-forward "<td ")
266 (search-forward "</td>")))
270 (if (looking-at ".*cid=\\([0-9]+\\)")
277 (make-full-mail-header
278 (1+ article) (concat subject " (" score ")")
280 (concat "<" (nnslashdot-sid-strip sid) "%"
281 (number-to-string (1+ article))
284 (concat "<" (nnslashdot-sid-strip sid) "%"
285 (number-to-string (1+ (string-to-number parent)))
290 (setq nnslashdot-headers
291 (sort headers (lambda (s1 s2) (< (car s1) (car s2)))))
293 (set-buffer nntp-server-buffer)
295 (mm-with-unibyte-current-buffer
296 (dolist (header nnslashdot-headers)
297 (nnheader-insert-nov (cdr header)))))
300 (deffoo nnslashdot-request-group (group &optional server dont-check)
301 (nnslashdot-possibly-change-server nil server)
302 (let ((elem (assoc group nnslashdot-groups)))
305 (nnheader-report 'nnslashdot "Group does not exist"))
307 (nnheader-report 'nnslashdot "Opened group %s" group)
309 "211 %d %d %d %s\n" (cadr elem) 1 (cadr elem)
310 (prin1-to-string group))))))
312 (deffoo nnslashdot-close-group (group &optional server)
313 (nnslashdot-possibly-change-server group server)
314 (when (gnus-buffer-live-p nnslashdot-buffer)
316 (set-buffer nnslashdot-buffer)
317 (kill-buffer nnslashdot-buffer)))
320 (deffoo nnslashdot-request-article (article &optional group server buffer)
321 (nnslashdot-possibly-change-server group server)
325 (set-buffer nnslashdot-buffer)
326 (let ((case-fold-search t))
327 (goto-char (point-min))
328 (when (and (stringp article)
329 (string-match "%\\([0-9]+\\)@" article))
330 (setq article (string-to-number (match-string 1 article))))
331 (when (numberp article)
334 (re-search-forward "Posted by *<[^>]+>[^>]*<[^>]+> *on ")
335 (search-forward "<BR>")
341 "<p>.*A href=\"\\(http://slashdot.org\\)?/article")
342 (match-beginning 0)))))
343 (search-forward (format "<a name=\"%d\">" (1- article)))
346 (re-search-forward "<td[^>]+>")
347 (search-forward "</td>")))))))
348 (search-failed (nnslashdot-lose why)))
352 (set-buffer (or buffer nntp-server-buffer))
354 (mm-with-unibyte-current-buffer
356 (goto-char (point-min))
357 (while (re-search-forward "\\(<br>\r?\\)+" nil t)
358 (replace-match "<p>" t t))
359 (goto-char (point-min))
360 (insert "Content-Type: text/html\nMIME-Version: 1.0\n")
361 (insert "Newsgroups: " (caddr (assoc group nnslashdot-groups))
363 (let ((header (cdr (assq article nnslashdot-headers))))
364 (nnheader-insert-header header))
365 (nnheader-report 'nnslashdot "Fetched article %s" article))
366 (cons group article)))))
368 (deffoo nnslashdot-close-server (&optional server)
369 (when (and (nnslashdot-server-opened server)
370 (gnus-buffer-live-p nnslashdot-buffer))
372 (set-buffer nnslashdot-buffer)
373 (kill-buffer nnslashdot-buffer)))
374 (nnoo-close-server 'nnslashdot server))
376 (deffoo nnslashdot-request-list (&optional server)
377 (nnslashdot-possibly-change-server nil server)
379 sid elem description articles gname)
381 ;; First we do the Ultramode to get info on all the latest groups.
383 (mm-with-unibyte-buffer
384 (nnweb-insert "http://slashdot.org/slashdot.xml" t)
385 (goto-char (point-min))
386 (while (search-forward "<story>" nil t)
387 (narrow-to-region (point) (search-forward "</story>"))
388 (goto-char (point-min))
389 (re-search-forward "<title>\\([^<]+\\)</title>")
391 (nnweb-decode-entities-string (match-string 1)))
392 (re-search-forward "<url>\\([^<]+\\)</url>")
393 (setq sid (match-string 1))
394 (string-match "/\\([0-9/]+\\)\\(.shtml\\|$\\)" sid)
395 (setq sid (concat "00/" (match-string 1 sid)))
396 (re-search-forward "<comments>\\([^<]+\\)</comments>")
397 (setq articles (string-to-number (match-string 1)))
398 (setq gname (concat description " (" sid ")"))
399 (if (setq elem (assoc gname nnslashdot-groups))
400 (setcar (cdr elem) articles)
401 (push (list gname articles sid) nnslashdot-groups))
402 (goto-char (point-max))
404 ;; Then do the older groups.
405 (while (> (- nnslashdot-group-number number) 0)
406 (mm-with-unibyte-buffer
407 (let ((case-fold-search t))
408 (nnweb-insert (format nnslashdot-active-url number) t)
409 (goto-char (point-min))
410 (while (re-search-forward
411 "article.pl\\?sid=\\([^&]+\\).*<b>\\([^<]+\\)</b>"
413 (setq sid (match-string 1)
415 (nnweb-decode-entities-string (match-string 2)))
417 (when (re-search-forward "<b>\\([0-9]+\\)</b>" nil t)
418 (setq articles (string-to-number (match-string 1))))
419 (setq gname (concat description " (" sid ")"))
420 (if (setq elem (assoc gname nnslashdot-groups))
421 (setcar (cdr elem) articles)
422 (push (list gname articles sid) nnslashdot-groups)))))
424 (search-failed (nnslashdot-lose why)))
425 (nnslashdot-write-groups)
426 (nnslashdot-generate-active)
429 (deffoo nnslashdot-request-newgroups (date &optional server)
430 (nnslashdot-possibly-change-server nil server)
431 (nnslashdot-generate-active)
434 (deffoo nnslashdot-request-post (&optional server)
435 (nnslashdot-possibly-change-server nil server)
436 (let ((sid (nnslashdot-sid-strip (message-fetch-field "newsgroups")))
437 (subject (message-fetch-field "subject"))
438 (references (car (last (split-string
439 (message-fetch-field "references")))))
441 (string-match "%\\([0-9]+\\)@slashdot" references)
442 (setq pid (match-string 1 references))
444 (narrow-to-region (point) (progn (message-goto-signature) (point)))
445 (goto-char (point-min))
447 (if (looking-at "> ")
449 (delete-region (point) (+ (point) 2))
451 (insert "<blockquote>\n"))
454 (insert "</blockquote>\n")
457 (goto-char (point-min))
458 (while (re-search-forward "^ *\n" nil t)
459 (replace-match "<p>\n"))
461 (when (message-goto-signature)
469 (setq body (buffer-substring (point) (point-max)))
472 "http://slashdot.org/comments.pl"
475 ("rlogin" . "userlogin")
476 ("unickname" . ,nnslashdot-login-name)
477 ("upasswd" . ,nnslashdot-password)
478 ("postersubj" . ,subject)
480 ("postercomment" . ,body)
481 ("posttype" . "html")))))
483 (deffoo nnslashdot-request-delete-group (group &optional force server)
484 (nnslashdot-possibly-change-server group server)
485 (setq nnslashdot-groups (delq (assoc group nnslashdot-groups)
487 (nnslashdot-write-groups))
489 (nnoo-define-skeleton nnslashdot)
491 ;;; Internal functions
493 (defun nnslashdot-possibly-change-server (&optional group server)
494 (nnslashdot-init server)
496 (not (nnslashdot-server-opened server)))
497 (nnslashdot-open-server server))
498 (unless nnslashdot-groups
499 (nnslashdot-read-groups)))
501 (defun nnslashdot-read-groups ()
502 (let ((file (expand-file-name "groups" nnslashdot-directory)))
503 (when (file-exists-p file)
504 (mm-with-unibyte-buffer
505 (insert-file-contents file)
506 (goto-char (point-min))
507 (setq nnslashdot-groups (read (current-buffer)))))))
509 (defun nnslashdot-write-groups ()
510 (with-temp-file (expand-file-name "groups" nnslashdot-directory)
511 (prin1 nnslashdot-groups (current-buffer))))
513 (defun nnslashdot-init (server)
514 "Initialize buffers and such."
515 (unless (file-exists-p nnslashdot-directory)
516 (gnus-make-directory nnslashdot-directory))
517 (unless (gnus-buffer-live-p nnslashdot-buffer)
518 (setq nnslashdot-buffer
520 (nnheader-set-temp-buffer
521 (format " *nnslashdot %s*" server))))))
523 (defun nnslashdot-date-to-date (sdate)
525 (let ((elem (delete "" (split-string sdate))))
526 (concat (substring (nth 0 elem) 0 3) " "
527 (substring (nth 1 elem) 0 3) " "
528 (substring (nth 2 elem) 0 2) " "
529 (substring (nth 3 elem) 1 6) " "
530 (format-time-string "%Y") " "
534 (defun nnslashdot-generate-active ()
536 (set-buffer nntp-server-buffer)
538 (dolist (elem nnslashdot-groups)
539 (insert (prin1-to-string (car elem))
540 " " (number-to-string (cadr elem)) " 1 y\n"))))
542 (defun nnslashdot-lose (why)
543 (error "Slashdot HTML has changed; please get a new version of nnslashdot"))
545 ;(defun nnslashdot-sid-strip (sid)
546 ; (if (string-match "^00/" sid)
547 ; (substring sid (match-end 0))
550 (defalias 'nnslashdot-sid-strip 'identity)
552 (provide 'nnslashdot)
554 ;;; nnslashdot.el ends here