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emacs/lisp/gnus/nnslashdot.el
ShengHuo ZHU 619ac84f46 2001-01-21 ShengHuo ZHU <zsh@cs.rochester.edu>
* message.el (message-forward): Use mule4.
	* mm-util.el (mm-string-as-unibyte): New.
	* message.el (message-forward): Use it.
	* message.el (message-cite-original-without-signature): Don't peel
	off the blank line.
	(message-get-reply-headers): Add Cc if it is not in follow-to.
	* message.el (message-send-mail): Content-Type may not be there.
	By Alberto Lusiani.
	* gnus-art.el (article-display-x-face): Insert X-Face if there is
	not.
	* rfc2047.el (rfc2047-fold-region): Don't insert LWSP if there is
	one.
	* gnus-win.el (gnus-configure-windows): switch-to-buffer in XEmacs.
	(gnus-remove-some-windows): Ditto.
	* mm-decode.el (mm-interactively-view-part): Don't copy-sequence
	handle.
	* gnus-art.el (gnus-mime-view-part): Copy it.
	(gnus-mime-view-part-as-type): Add into gnus-article-mime-handles.
	* nnmail.el (nnmail-get-new-mail): Find group only if file is not
	orig-file. Use ',source.
	* nnslashdot.el (nnslashdot-request-list): Get the right year. By
	Lars Magne Ingebrigtsen.
	* pop3.el (pop3-get-message-count): Andrew Innes
	<andrewi@gnu.org>'s patch of 1999-12-01 was not fully committed.
2001-01-21 05:33:42 +00:00

565 lines
18 KiB
EmacsLisp

;;; 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 "sid=\\([0-9/]+\\)\\(.shtml\\|$\\)" sid)
(setq sid (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