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Diffstat (limited to 'lisp/gnus/nnslashdot.el')
| -rw-r--r-- | lisp/gnus/nnslashdot.el | 564 |
1 files changed, 564 insertions, 0 deletions
diff --git a/lisp/gnus/nnslashdot.el b/lisp/gnus/nnslashdot.el new file mode 100644 index 00000000000..37629277350 --- /dev/null +++ b/lisp/gnus/nnslashdot.el @@ -0,0 +1,564 @@ +;;; nnslashdot.el --- interfacing with Slashdot +;; Copyright (C) 1999, 2000 Free Software Foundation, Inc. + +;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> +;; Keywords: news + +;; This file is part of GNU Emacs. + +;; GNU Emacs 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. + +;; GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the +;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, +;; Boston, MA 02111-1307, USA. + +;;; Commentary: + +;; Note: You need to have `url' and `w3' installed for this +;; backend to work. + +;;; Code: + +(eval-when-compile (require 'cl)) + +(require 'nnoo) +(require 'message) +(require 'gnus-util) +(require 'gnus) +(require 'nnmail) +(require 'mm-util) +(eval-when-compile + (ignore-errors + (require 'nnweb))) +;; Report failure to find w3 at load time if appropriate. +(eval '(require 'nnweb)) + +(nnoo-declare nnslashdot) + +(defvoo nnslashdot-directory (nnheader-concat gnus-directory "slashdot/") + "Where nnslashdot will save its files.") + +(defvoo nnslashdot-active-url "http://slashdot.org/search.pl?section=&min=%d" + "Where nnslashdot will fetch the active file from.") + +(defvoo nnslashdot-comments-url "http://slashdot.org/comments.pl?sid=%s&threshold=%d&commentsort=%d&mode=flat&startat=%d" + "Where nnslashdot will fetch comments from.") + +(defvoo nnslashdot-article-url + "http://slashdot.org/article.pl?sid=%s&mode=nocomment" + "Where nnslashdot will fetch the article from.") + +(defvoo nnslashdot-threshold -1 + "The article threshold.") + +(defvoo nnslashdot-threaded t + "Whether the nnslashdot groups should be threaded or not.") + +(defvoo nnslashdot-group-number 0 + "The number of non-fresh groups to keep updated.") + +(defvoo nnslashdot-login-name "" + "The login name to use when posting.") + +(defvoo nnslashdot-password "" + "The password to use when posting.") + +;;; Internal variables + +(defvar nnslashdot-groups nil) +(defvar nnslashdot-buffer nil) +(defvar nnslashdot-headers nil) + +;;; Interface functions + +(nnoo-define-basics nnslashdot) + +(deffoo nnslashdot-retrieve-headers (articles &optional group server fetch-old) + (nnslashdot-possibly-change-server group server) + (condition-case why + (unless gnus-nov-is-evil + (if nnslashdot-threaded + (nnslashdot-threaded-retrieve-headers articles group) + (nnslashdot-sane-retrieve-headers articles group))) + (search-failed (nnslashdot-lose why)))) + +(deffoo nnslashdot-threaded-retrieve-headers (articles group) + (let ((last (car (last articles))) + (did nil) + (start 1) + (sid (caddr (assoc group nnslashdot-groups))) + (first-comments t) + (startats '(1)) + headers article subject score from date lines parent point s) + (save-excursion + (set-buffer nnslashdot-buffer) + (let ((case-fold-search t)) + (erase-buffer) + (when (= start 1) + (nnweb-insert (format nnslashdot-article-url + (nnslashdot-sid-strip sid)) t) + (goto-char (point-min)) + (search-forward "Posted by ") + (when (looking-at "<a[^>]+>\\([^<]+\\)") + (setq from (nnweb-decode-entities-string (match-string 1)))) + (search-forward " on ") + (setq date (nnslashdot-date-to-date + (buffer-substring (point) (1- (search-forward "<"))))) + (setq lines (/ (- (point) + (progn (forward-line 1) (point))) + 60)) + (push + (cons + 1 + (make-full-mail-header + 1 group from date + (concat "<" (nnslashdot-sid-strip sid) "%1@slashdot>") + "" 0 lines nil nil)) + headers)) + (while (and (setq start (pop startats)) + (< start last)) + (setq point (goto-char (point-max))) + (nnweb-insert + (format nnslashdot-comments-url + (nnslashdot-sid-strip sid) + nnslashdot-threshold 0 start) + t) + (when first-comments + (setq first-comments nil) + (goto-char (point-max)) + (while (re-search-backward "startat=\\([0-9]+\\)" nil t) + (setq s (string-to-number (match-string 1))) + (unless (memq s startats) + (push s startats))) + (setq startats (sort startats '<))) + (goto-char point) + (while (re-search-forward + "<a name=\"\\([0-9]+\\)\"><\\(b\\|H4\\)>\\([^<]+\\)</\\(b\\|H4\\)>.*score:\\([^)]+\\))" + nil t) + (setq article (string-to-number (match-string 1)) + subject (match-string 3) + score (match-string 5)) + (when (string-match "^Re: *" subject) + (setq subject (concat "Re: " (substring subject (match-end 0))))) + (setq subject (nnweb-decode-entities-string subject)) + (forward-line 1) + (if (looking-at + "by <a[^>]+>\\([^<]+\\)</a>[ \t\n]*.*(\\([^)]+\\))") + (progn + (goto-char (- (match-end 0) 5)) + (setq from (concat + (nnweb-decode-entities-string (match-string 1)) + " <" (match-string 2) ">"))) + (setq from "") + (when (looking-at "by \\(.+\\) on ") + (goto-char (- (match-end 0) 5)) + (setq from (nnweb-decode-entities-string (match-string 1))))) + (search-forward " on ") + (setq date + (nnslashdot-date-to-date + (buffer-substring (point) (progn (end-of-line) (point))))) + (setq lines (/ (abs (- (search-forward "<td ") + (search-forward "</td>"))) + 70)) + (forward-line 4) + (setq parent + (if (looking-at ".*cid=\\([0-9]+\\)") + (match-string 1) + nil)) + (setq did t) + (push + (cons + (1+ article) + (make-full-mail-header + (1+ article) + (concat subject " (" score ")") + from date + (concat "<" (nnslashdot-sid-strip sid) "%" + (number-to-string (1+ article)) + "@slashdot>") + (if parent + (concat "<" (nnslashdot-sid-strip sid) "%" + (number-to-string (1+ (string-to-number parent))) + "@slashdot>") + "") + 0 lines nil nil)) + headers))))) + (setq nnslashdot-headers (sort headers 'car-less-than-car)) + (save-excursion + (set-buffer nntp-server-buffer) + (erase-buffer) + (mm-with-unibyte-current-buffer + (dolist (header nnslashdot-headers) + (nnheader-insert-nov (cdr header))))) + 'nov)) + +(deffoo nnslashdot-sane-retrieve-headers (articles group) + (let ((last (car (last articles))) + (did nil) + (start (max (1- (car articles)) 1)) + (sid (caddr (assoc group nnslashdot-groups))) + headers article subject score from date lines parent point) + (save-excursion + (set-buffer nnslashdot-buffer) + (erase-buffer) + (when (= start 1) + (nnweb-insert (format nnslashdot-article-url + (nnslashdot-sid-strip sid)) t) + (goto-char (point-min)) + (search-forward "Posted by ") + (when (looking-at "<a[^>]+>\\([^<]+\\)") + (setq from (nnweb-decode-entities-string (match-string 1)))) + (search-forward " on ") + (setq date (nnslashdot-date-to-date + (buffer-substring (point) (1- (search-forward "<"))))) + (forward-line 2) + (setq lines (count-lines (point) + (re-search-forward + "A href=\"\\(http://slashdot.org\\)?/article"))) + (push + (cons + 1 + (make-full-mail-header + 1 group from date (concat "<" (nnslashdot-sid-strip sid) + "%1@slashdot>") + "" 0 lines nil nil)) + headers)) + (while (or (not article) + (and did + (< article last))) + (when article + (setq start (1+ article))) + (setq point (goto-char (point-max))) + (nnweb-insert + (format nnslashdot-comments-url (nnslashdot-sid-strip sid) + nnslashdot-threshold 4 start) + t) + (goto-char point) + (while (re-search-forward + "<a name=\"\\([0-9]+\\)\"><\\(b\\|H4\\)>\\([^<]+\\)</\\(b\\|H4\\)>.*score:\\([^)]+\\))" + nil t) + (setq article (string-to-number (match-string 1)) + subject (match-string 3) + score (match-string 5)) + (when (string-match "^Re: *" subject) + (setq subject (concat "Re: " (substring subject (match-end 0))))) + (setq subject (nnweb-decode-entities-string subject)) + (forward-line 1) + (if (looking-at + "by <a[^>]+>\\([^<]+\\)</a>[ \t\n]*.*(\\([^)]+\\))") + (progn + (goto-char (- (match-end 0) 5)) + (setq from (concat + (nnweb-decode-entities-string (match-string 1)) + " <" (match-string 2) ">"))) + (setq from "") + (when (looking-at "by \\(.+\\) on ") + (goto-char (- (match-end 0) 5)) + (setq from (nnweb-decode-entities-string (match-string 1))))) + (search-forward " on ") + (setq date + (nnslashdot-date-to-date + (buffer-substring (point) (progn (end-of-line) (point))))) + (setq lines (/ (abs (- (search-forward "<td ") + (search-forward "</td>"))) + 70)) + (forward-line 2) + (setq parent + (if (looking-at ".*cid=\\([0-9]+\\)") + (match-string 1) + nil)) + (setq did t) + (push + (cons + (1+ article) + (make-full-mail-header + (1+ article) (concat subject " (" score ")") + from date + (concat "<" (nnslashdot-sid-strip sid) "%" + (number-to-string (1+ article)) + "@slashdot>") + (if parent + (concat "<" (nnslashdot-sid-strip sid) "%" + (number-to-string (1+ (string-to-number parent))) + "@slashdot>") + "") + 0 lines nil nil)) + headers)))) + (setq nnslashdot-headers + (sort headers (lambda (s1 s2) (< (car s1) (car s2))))) + (save-excursion + (set-buffer nntp-server-buffer) + (erase-buffer) + (mm-with-unibyte-current-buffer + (dolist (header nnslashdot-headers) + (nnheader-insert-nov (cdr header))))) + 'nov)) + +(deffoo nnslashdot-request-group (group &optional server dont-check) + (nnslashdot-possibly-change-server nil server) + (let ((elem (assoc group nnslashdot-groups))) + (cond + ((not elem) + (nnheader-report 'nnslashdot "Group does not exist")) + (t + (nnheader-report 'nnslashdot "Opened group %s" group) + (nnheader-insert + "211 %d %d %d %s\n" (cadr elem) 1 (cadr elem) + (prin1-to-string group)))))) + +(deffoo nnslashdot-close-group (group &optional server) + (nnslashdot-possibly-change-server group server) + (when (gnus-buffer-live-p nnslashdot-buffer) + (save-excursion + (set-buffer nnslashdot-buffer) + (kill-buffer nnslashdot-buffer))) + t) + +(deffoo nnslashdot-request-article (article &optional group server buffer) + (nnslashdot-possibly-change-server group server) + (let (contents) + (condition-case why + (save-excursion + (set-buffer nnslashdot-buffer) + (let ((case-fold-search t)) + (goto-char (point-min)) + (when (and (stringp article) + (string-match "%\\([0-9]+\\)@" article)) + (setq article (string-to-number (match-string 1 article)))) + (when (numberp article) + (if (= article 1) + (progn + (re-search-forward "Posted by *<[^>]+>[^>]*<[^>]+> *on ") + (search-forward "<BR>") + (setq contents + (buffer-substring + (point) + (progn + (re-search-forward + "<p>.*A href=\"\\(http://slashdot.org\\)?/article") + (match-beginning 0))))) + (search-forward (format "<a name=\"%d\">" (1- article))) + (setq contents + (buffer-substring + (re-search-forward "<td[^>]+>") + (search-forward "</td>"))))))) + (search-failed (nnslashdot-lose why))) + + (when contents + (save-excursion + (set-buffer (or buffer nntp-server-buffer)) + (erase-buffer) + (mm-with-unibyte-current-buffer + (insert contents) + (goto-char (point-min)) + (while (re-search-forward "\\(<br>\r?\\)+" nil t) + (replace-match "<p>" t t)) + (goto-char (point-min)) + (insert "Content-Type: text/html\nMIME-Version: 1.0\n") + (insert "Newsgroups: " (caddr (assoc group nnslashdot-groups)) + "\n") + (let ((header (cdr (assq article nnslashdot-headers)))) + (nnheader-insert-header header)) + (nnheader-report 'nnslashdot "Fetched article %s" article)) + (cons group article))))) + +(deffoo nnslashdot-close-server (&optional server) + (when (and (nnslashdot-server-opened server) + (gnus-buffer-live-p nnslashdot-buffer)) + (save-excursion + (set-buffer nnslashdot-buffer) + (kill-buffer nnslashdot-buffer))) + (nnoo-close-server 'nnslashdot server)) + +(deffoo nnslashdot-request-list (&optional server) + (nnslashdot-possibly-change-server nil server) + (let ((number 0) + sid elem description articles gname) + (condition-case why + ;; First we do the Ultramode to get info on all the latest groups. + (progn + (mm-with-unibyte-buffer + (nnweb-insert "http://slashdot.org/slashdot.xml" t) + (goto-char (point-min)) + (while (search-forward "<story>" nil t) + (narrow-to-region (point) (search-forward "</story>")) + (goto-char (point-min)) + (re-search-forward "<title>\\([^<]+\\)</title>") + (setq description + (nnweb-decode-entities-string (match-string 1))) + (re-search-forward "<url>\\([^<]+\\)</url>") + (setq sid (match-string 1)) + (string-match "/\\([0-9/]+\\)\\(.shtml\\|$\\)" sid) + (setq sid (concat "00/" (match-string 1 sid))) + (re-search-forward "<comments>\\([^<]+\\)</comments>") + (setq articles (string-to-number (match-string 1))) + (setq gname (concat description " (" sid ")")) + (if (setq elem (assoc gname nnslashdot-groups)) + (setcar (cdr elem) articles) + (push (list gname articles sid) nnslashdot-groups)) + (goto-char (point-max)) + (widen))) + ;; Then do the older groups. + (while (> (- nnslashdot-group-number number) 0) + (mm-with-unibyte-buffer + (let ((case-fold-search t)) + (nnweb-insert (format nnslashdot-active-url number) t) + (goto-char (point-min)) + (while (re-search-forward + "article.pl\\?sid=\\([^&]+\\).*<b>\\([^<]+\\)</b>" + nil t) + (setq sid (match-string 1) + description + (nnweb-decode-entities-string (match-string 2))) + (forward-line 1) + (when (re-search-forward "<b>\\([0-9]+\\)</b>" nil t) + (setq articles (string-to-number (match-string 1)))) + (setq gname (concat description " (" sid ")")) + (if (setq elem (assoc gname nnslashdot-groups)) + (setcar (cdr elem) articles) + (push (list gname articles sid) nnslashdot-groups))))) + (incf number 30))) + (search-failed (nnslashdot-lose why))) + (nnslashdot-write-groups) + (nnslashdot-generate-active) + t)) + +(deffoo nnslashdot-request-newgroups (date &optional server) + (nnslashdot-possibly-change-server nil server) + (nnslashdot-generate-active) + t) + +(deffoo nnslashdot-request-post (&optional server) + (nnslashdot-possibly-change-server nil server) + (let ((sid (nnslashdot-sid-strip (message-fetch-field "newsgroups"))) + (subject (message-fetch-field "subject")) + (references (car (last (split-string + (message-fetch-field "references"))))) + body quoted pid) + (string-match "%\\([0-9]+\\)@slashdot" references) + (setq pid (match-string 1 references)) + (message-goto-body) + (narrow-to-region (point) (progn (message-goto-signature) (point))) + (goto-char (point-min)) + (while (not (eobp)) + (if (looking-at "> ") + (progn + (delete-region (point) (+ (point) 2)) + (unless quoted + (insert "<blockquote>\n")) + (setq quoted t)) + (when quoted + (insert "</blockquote>\n") + (setq quoted nil))) + (forward-line 1)) + (goto-char (point-min)) + (while (re-search-forward "^ *\n" nil t) + (replace-match "<p>\n")) + (widen) + (when (message-goto-signature) + (forward-line -1) + (insert "<p>\n") + (while (not (eobp)) + (end-of-line) + (insert "<br>") + (forward-line 1))) + (message-goto-body) + (setq body (buffer-substring (point) (point-max))) + (erase-buffer) + (nnweb-fetch-form + "http://slashdot.org/comments.pl" + `(("sid" . ,sid) + ("pid" . ,pid) + ("rlogin" . "userlogin") + ("unickname" . ,nnslashdot-login-name) + ("upasswd" . ,nnslashdot-password) + ("postersubj" . ,subject) + ("op" . "Submit") + ("postercomment" . ,body) + ("posttype" . "html"))))) + +(deffoo nnslashdot-request-delete-group (group &optional force server) + (nnslashdot-possibly-change-server group server) + (setq nnslashdot-groups (delq (assoc group nnslashdot-groups) + nnslashdot-groups)) + (nnslashdot-write-groups)) + +(deffoo nnslashdot-request-close () + (setq nnslashdot-headers nil + nnslashdot-groups nil)) + +(nnoo-define-skeleton nnslashdot) + +;;; Internal functions + +(defun nnslashdot-possibly-change-server (&optional group server) + (nnslashdot-init server) + (when (and server + (not (nnslashdot-server-opened server))) + (nnslashdot-open-server server)) + (unless nnslashdot-groups + (nnslashdot-read-groups))) + +(defun nnslashdot-read-groups () + (let ((file (expand-file-name "groups" nnslashdot-directory))) + (when (file-exists-p file) + (mm-with-unibyte-buffer + (insert-file-contents file) + (goto-char (point-min)) + (setq nnslashdot-groups (read (current-buffer))))))) + +(defun nnslashdot-write-groups () + (with-temp-file (expand-file-name "groups" nnslashdot-directory) + (prin1 nnslashdot-groups (current-buffer)))) + +(defun nnslashdot-init (server) + "Initialize buffers and such." + (unless (file-exists-p nnslashdot-directory) + (gnus-make-directory nnslashdot-directory)) + (unless (gnus-buffer-live-p nnslashdot-buffer) + (setq nnslashdot-buffer + (save-excursion + (nnheader-set-temp-buffer + (format " *nnslashdot %s*" server)))))) + +(defun nnslashdot-date-to-date (sdate) + (condition-case err + (let ((elem (delete "" (split-string sdate)))) + (concat (substring (nth 0 elem) 0 3) " " + (substring (nth 1 elem) 0 3) " " + (substring (nth 2 elem) 0 2) " " + (substring (nth 3 elem) 1 6) " " + (format-time-string "%Y") " " + (nth 4 elem))) + (error ""))) + +(defun nnslashdot-generate-active () + (save-excursion + (set-buffer nntp-server-buffer) + (erase-buffer) + (dolist (elem nnslashdot-groups) + (insert (prin1-to-string (car elem)) + " " (number-to-string (cadr elem)) " 1 y\n")))) + +(defun nnslashdot-lose (why) + (error "Slashdot HTML has changed; please get a new version of nnslashdot")) + +;(defun nnslashdot-sid-strip (sid) +; (if (string-match "^00/" sid) +; (substring sid (match-end 0)) +; sid)) + +(defalias 'nnslashdot-sid-strip 'identity) + +(provide 'nnslashdot) + +;;; nnslashdot.el ends here |