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23f87bede0
Merge from emacs--gnus--5.10, gnus--rel--5.10 Patches applied: * miles@gnu.org--gnu-2004/emacs--gnus--5.10--base-0 tag of miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-464 * miles@gnu.org--gnu-2004/emacs--gnus--5.10--patch-1 Import from CVS branch gnus-5_10-branch * miles@gnu.org--gnu-2004/emacs--gnus--5.10--patch-2 Merge from lorentey@elte.hu--2004/emacs--multi-tty--0, emacs--cvs-trunk--0 * miles@gnu.org--gnu-2004/emacs--gnus--5.10--patch-3 Merge from gnus--rel--5.10 * miles@gnu.org--gnu-2004/emacs--gnus--5.10--patch-4 Merge from gnus--rel--5.10 * miles@gnu.org--gnu-2004/gnus--rel--5.10--patch-18 Update from CVS * miles@gnu.org--gnu-2004/gnus--rel--5.10--patch-19 Remove autoconf-generated files from archive * miles@gnu.org--gnu-2004/gnus--rel--5.10--patch-20 Update from CVS
481 lines
16 KiB
EmacsLisp
481 lines
16 KiB
EmacsLisp
;;; nnultimate.el --- interfacing with the Ultimate Bulletin Board system
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;; Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
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;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
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;; Keywords: news
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; Note: You need to have `url' and `w3' installed for this
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;; backend to work.
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;;; Code:
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(eval-when-compile (require 'cl))
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(require 'nnoo)
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(require 'message)
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(require 'gnus-util)
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(require 'gnus)
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(require 'nnmail)
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(require 'mm-util)
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(require 'mm-url)
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(require 'nnweb)
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(autoload 'w3-parse-buffer "w3-parse")
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(nnoo-declare nnultimate)
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(defvoo nnultimate-directory (nnheader-concat gnus-directory "ultimate/")
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"Where nnultimate will save its files.")
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(defvoo nnultimate-address ""
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"The address of the Ultimate bulletin board.")
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;;; Internal variables
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(defvar nnultimate-groups-alist nil)
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(defvoo nnultimate-groups nil)
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(defvoo nnultimate-headers nil)
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(defvoo nnultimate-articles nil)
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(defvar nnultimate-table-regexp
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"postings.*editpost\\|forumdisplay\\|Forum[0-9]+/HTML\\|getbio")
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;;; Interface functions
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(nnoo-define-basics nnultimate)
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(deffoo nnultimate-retrieve-headers (articles &optional group server fetch-old)
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(nnultimate-possibly-change-server group server)
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(unless gnus-nov-is-evil
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(let* ((last (car (last articles)))
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(did nil)
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(start 1)
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(entry (assoc group nnultimate-groups))
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(sid (nth 2 entry))
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(topics (nth 4 entry))
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(mapping (nth 5 entry))
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(old-total (or (nth 6 entry) 1))
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(furl "forumdisplay.cgi?action=topics&number=%d&DaysPrune=1000")
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(furls (list (concat nnultimate-address (format furl sid))))
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(nnultimate-table-regexp
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"postings.*editpost\\|forumdisplay\\|getbio")
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headers article subject score from date lines parent point
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contents tinfo fetchers map elem a href garticles topic old-max
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inc datel table current-page total-contents pages
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farticles forum-contents parse furl-fetched mmap farticle)
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(setq map mapping)
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(while (and (setq article (car articles))
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map)
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;; Skip past the articles in the map until we reach the
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;; article we're looking for.
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(while (and map
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(or (> article (caar map))
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(< (cadar map) (caar map))))
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(pop map))
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(when (setq mmap (car map))
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(setq farticle -1)
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(while (and article
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(<= article (nth 1 mmap)))
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;; Do we already have a fetcher for this topic?
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(if (setq elem (assq (nth 2 mmap) fetchers))
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;; Yes, so we just add the spec to the end.
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(nconc elem (list (cons article
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(+ (nth 3 mmap) (incf farticle)))))
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;; No, so we add a new one.
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(push (list (nth 2 mmap)
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(cons article
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(+ (nth 3 mmap) (incf farticle))))
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fetchers))
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(pop articles)
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(setq article (car articles)))))
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;; Now we have the mapping from/to Gnus/nnultimate article numbers,
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;; so we start fetching the topics that we need to satisfy the
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;; request.
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(if (not fetchers)
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(save-excursion
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(set-buffer nntp-server-buffer)
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(erase-buffer))
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(setq nnultimate-articles nil)
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(mm-with-unibyte-buffer
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(dolist (elem fetchers)
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(setq pages 1
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current-page 1
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total-contents nil)
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(while (<= current-page pages)
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(erase-buffer)
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(setq subject (nth 2 (assq (car elem) topics)))
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(setq href (nth 3 (assq (car elem) topics)))
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(if (= current-page 1)
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(mm-url-insert href)
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(string-match "\\.html$" href)
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(mm-url-insert (concat (substring href 0 (match-beginning 0))
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"-" (number-to-string current-page)
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(match-string 0 href))))
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(goto-char (point-min))
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(setq contents
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(ignore-errors (w3-parse-buffer (current-buffer))))
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(setq table (nnultimate-find-forum-table contents))
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(goto-char (point-min))
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(when (re-search-forward "topic is \\([0-9]+\\) pages" nil t)
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(setq pages (string-to-number (match-string 1))))
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(setq contents (cdr (nth 2 (car (nth 2 table)))))
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(setq total-contents (nconc total-contents contents))
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(incf current-page))
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(when t
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(let ((i 0))
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(dolist (co total-contents)
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(push (list (or (nnultimate-topic-article-to-article
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group (car elem) (incf i))
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1)
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co subject)
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nnultimate-articles))))
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(when nil
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(dolist (art (cdr elem))
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(when (nth (1- (cdr art)) total-contents)
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(push (list (car art)
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(nth (1- (cdr art)) total-contents)
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subject)
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nnultimate-articles))))))
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(setq nnultimate-articles
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(sort nnultimate-articles 'car-less-than-car))
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;; Now we have all the articles, conveniently in an alist
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;; where the key is the Gnus article number.
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(dolist (articlef nnultimate-articles)
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(setq article (nth 0 articlef)
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contents (nth 1 articlef)
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subject (nth 2 articlef))
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(setq from (mapconcat 'identity
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(nnweb-text (car (nth 2 contents)))
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" ")
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datel (nnweb-text (nth 2 (car (cdr (nth 2 contents))))))
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(while datel
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(when (string-match "Posted" (car datel))
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(setq date (substring (car datel) (match-end 0))
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datel nil))
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(pop datel))
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(when date
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(setq date (delete "" (split-string date "[-, \n\t\r <20><><EFBFBD>]")))
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(setq date
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(if (or (member "AM" date)
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(member "PM" date))
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(format
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"%s %s %s %s"
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(nth 1 date)
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(if (and (>= (length (nth 0 date)) 3)
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(assoc (downcase
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(substring (nth 0 date) 0 3))
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parse-time-months))
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(substring (nth 0 date) 0 3)
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(car (rassq (string-to-number (nth 0 date))
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parse-time-months)))
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(nth 2 date) (nth 3 date))
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(format "%s %s %s %s"
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(car (rassq (string-to-number (nth 1 date))
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parse-time-months))
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(nth 0 date) (nth 2 date) (nth 3 date)))))
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(push
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(cons
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article
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(make-full-mail-header
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article subject
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from (or date "")
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(concat "<" (number-to-string sid) "%"
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(number-to-string article)
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"@ultimate." server ">")
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"" 0
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(/ (length (mapconcat
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'identity
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(nnweb-text
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(cdr (nth 2 (nth 1 (nth 2 contents)))))
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""))
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70)
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nil nil))
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headers))
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(setq nnultimate-headers (sort headers 'car-less-than-car))
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(save-excursion
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(set-buffer nntp-server-buffer)
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(mm-with-unibyte-current-buffer
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(erase-buffer)
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(dolist (header nnultimate-headers)
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(nnheader-insert-nov (cdr header))))))
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'nov)))
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(defun nnultimate-topic-article-to-article (group topic article)
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(catch 'found
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(dolist (elem (nth 5 (assoc group nnultimate-groups)))
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(when (and (= topic (nth 2 elem))
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(>= article (nth 3 elem))
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(< article (+ (- (nth 1 elem) (nth 0 elem)) 1
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(nth 3 elem))))
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(throw 'found
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(+ (nth 0 elem) (- article (nth 3 elem))))))))
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(deffoo nnultimate-request-group (group &optional server dont-check)
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(nnultimate-possibly-change-server nil server)
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(when (not nnultimate-groups)
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(nnultimate-request-list))
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(unless dont-check
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(nnultimate-create-mapping group))
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(let ((elem (assoc group nnultimate-groups)))
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(cond
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((not elem)
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(nnheader-report 'nnultimate "Group does not exist"))
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(t
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(nnheader-report 'nnultimate "Opened group %s" group)
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(nnheader-insert
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"211 %d %d %d %s\n" (cadr elem) 1 (cadr elem)
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(prin1-to-string group))))))
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(deffoo nnultimate-request-close ()
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(setq nnultimate-groups-alist nil
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nnultimate-groups nil))
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(deffoo nnultimate-request-article (article &optional group server buffer)
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(nnultimate-possibly-change-server group server)
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(let ((contents (cdr (assq article nnultimate-articles))))
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(setq contents (cddr (nth 2 (nth 1 (nth 2 (car contents))))))
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(when contents
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(save-excursion
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(set-buffer (or buffer nntp-server-buffer))
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(erase-buffer)
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(nnweb-insert-html (cons 'p (cons nil (list contents))))
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(goto-char (point-min))
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(insert "Content-Type: text/html\nMIME-Version: 1.0\n")
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(let ((header (cdr (assq article nnultimate-headers))))
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(mm-with-unibyte-current-buffer
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(nnheader-insert-header header)))
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(nnheader-report 'nnultimate "Fetched article %s" article)
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(cons group article)))))
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(deffoo nnultimate-request-list (&optional server)
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(nnultimate-possibly-change-server nil server)
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(mm-with-unibyte-buffer
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(mm-url-insert
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(if (string-match "/$" nnultimate-address)
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(concat nnultimate-address "Ultimate.cgi")
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nnultimate-address))
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(let ((contents (nth 2 (car (nth 2
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(nnultimate-find-forum-table
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(w3-parse-buffer (current-buffer)))))))
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sid elem description articles a href group forum
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a1 a2)
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(dolist (row contents)
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(setq row (nth 2 row))
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(when (setq a (nnweb-parse-find 'a row))
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(setq group (car (last (nnweb-text a)))
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href (cdr (assq 'href (nth 1 a))))
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(setq description (car (last (nnweb-text (nth 1 row)))))
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(setq a1 (car (last (nnweb-text (nth 2 row)))))
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(setq a2 (car (last (nnweb-text (nth 3 row)))))
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(when (string-match "^[0-9]+$" a1)
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(setq articles (string-to-number a1)))
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(when (and a2 (string-match "^[0-9]+$" a2))
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(setq articles (max articles (string-to-number a2))))
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(when href
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(string-match "number=\\([0-9]+\\)" href)
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(setq forum (string-to-number (match-string 1 href)))
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(if (setq elem (assoc group nnultimate-groups))
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(setcar (cdr elem) articles)
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(push (list group articles forum description nil nil nil nil)
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nnultimate-groups))))))
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(nnultimate-write-groups)
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(nnultimate-generate-active)
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t))
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(deffoo nnultimate-request-newgroups (date &optional server)
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(nnultimate-possibly-change-server nil server)
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(nnultimate-generate-active)
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t)
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(nnoo-define-skeleton nnultimate)
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;;; Internal functions
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(defun nnultimate-prune-days (group time)
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"Compute the number of days to fetch info for."
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(let ((old-time (nth 7 (assoc group nnultimate-groups))))
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(if (null old-time)
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1000
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(- (time-to-days time) (time-to-days old-time)))))
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(defun nnultimate-create-mapping (group)
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(let* ((entry (assoc group nnultimate-groups))
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(sid (nth 2 entry))
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(topics (nth 4 entry))
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(mapping (nth 5 entry))
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(old-total (or (nth 6 entry) 1))
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(current-time (current-time))
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(furl
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(concat "forumdisplay.cgi?action=topics&number=%d&DaysPrune="
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(number-to-string
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(nnultimate-prune-days group current-time))))
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(furls (list (concat nnultimate-address (format furl sid))))
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contents forum-contents furl-fetched a subject href
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garticles topic tinfo old-max inc parse)
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(mm-with-unibyte-buffer
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(while furls
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(erase-buffer)
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(mm-url-insert (pop furls))
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(goto-char (point-min))
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(setq parse (w3-parse-buffer (current-buffer)))
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(setq contents
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(cdr (nth 2 (car (nth 2 (nnultimate-find-forum-table
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parse))))))
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(setq forum-contents (nconc contents forum-contents))
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(unless furl-fetched
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(setq furl-fetched t)
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;; On the first time through this loop, we find all the
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;; forum URLs.
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(dolist (a (nnweb-parse-find-all 'a parse))
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(let ((href (cdr (assq 'href (nth 1 a)))))
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(when (and href
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(string-match "forumdisplay.*startpoint" href))
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(push href furls))))
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(setq furls (nreverse furls))))
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;; The main idea here is to map Gnus article numbers to
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;; nnultimate article numbers. Say there are three topics in
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;; this forum, the first with 4 articles, the seconds with 2,
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;; and the third with 1. Then this will translate into 7 Gnus
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;; article numbers, where 1-4 comes from the first topic, 5-6
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;; from the second and 7 from the third. Now, then next time
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;; the group is entered, there's 2 new articles in topic one
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;; and 1 in topic three. Then Gnus article number 8-9 be 5-6
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;; in topic one and 10 will be the 2 in topic three.
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(dolist (row (nreverse forum-contents))
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(setq row (nth 2 row))
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(when (setq a (nnweb-parse-find 'a row))
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(setq subject (car (last (nnweb-text a)))
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href (cdr (assq 'href (nth 1 a))))
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(let ((artlist (nreverse (nnweb-text row)))
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art)
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(while (and (not art)
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artlist)
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(when (string-match "^[0-9]+$" (car artlist))
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(setq art (1+ (string-to-number (car artlist)))))
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(pop artlist))
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(setq garticles art))
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(when garticles
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(string-match "/\\([0-9]+\\).html" href)
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(setq topic (string-to-number (match-string 1 href)))
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(if (setq tinfo (assq topic topics))
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(progn
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(setq old-max (cadr tinfo))
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(setcar (cdr tinfo) garticles))
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(setq old-max 0)
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(push (list topic garticles subject href) topics)
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(setcar (nthcdr 4 entry) topics))
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(when (not (= old-max garticles))
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(setq inc (- garticles old-max))
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(setq mapping (nconc mapping
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(list
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(list
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old-total (1- (incf old-total inc))
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topic (1+ old-max)))))
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(incf old-max inc)
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(setcar (nthcdr 5 entry) mapping)
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(setcar (nthcdr 6 entry) old-total))))))
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(setcar (nthcdr 7 entry) current-time)
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(setcar (nthcdr 1 entry) (1- old-total))
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(nnultimate-write-groups)
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mapping))
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(defun nnultimate-possibly-change-server (&optional group server)
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(nnultimate-init server)
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(when (and server
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(not (nnultimate-server-opened server)))
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(nnultimate-open-server server))
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(unless nnultimate-groups-alist
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(nnultimate-read-groups)
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(setq nnultimate-groups (cdr (assoc nnultimate-address
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nnultimate-groups-alist)))))
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(deffoo nnultimate-open-server (server &optional defs connectionless)
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(nnheader-init-server-buffer)
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(if (nnultimate-server-opened server)
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t
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(unless (assq 'nnultimate-address defs)
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(setq defs (append defs (list (list 'nnultimate-address server)))))
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(nnoo-change-server 'nnultimate server defs)))
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(defun nnultimate-read-groups ()
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(setq nnultimate-groups-alist nil)
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(let ((file (expand-file-name "groups" nnultimate-directory)))
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(when (file-exists-p file)
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(mm-with-unibyte-buffer
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(insert-file-contents file)
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(goto-char (point-min))
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(setq nnultimate-groups-alist (read (current-buffer)))))))
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(defun nnultimate-write-groups ()
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(setq nnultimate-groups-alist
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(delq (assoc nnultimate-address nnultimate-groups-alist)
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nnultimate-groups-alist))
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(push (cons nnultimate-address nnultimate-groups)
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nnultimate-groups-alist)
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(with-temp-file (expand-file-name "groups" nnultimate-directory)
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(prin1 nnultimate-groups-alist (current-buffer))))
|
||
|
||
(defun nnultimate-init (server)
|
||
"Initialize buffers and such."
|
||
(unless (file-exists-p nnultimate-directory)
|
||
(gnus-make-directory nnultimate-directory)))
|
||
|
||
(defun nnultimate-generate-active ()
|
||
(save-excursion
|
||
(set-buffer nntp-server-buffer)
|
||
(erase-buffer)
|
||
(dolist (elem nnultimate-groups)
|
||
(insert (prin1-to-string (car elem))
|
||
" " (number-to-string (cadr elem)) " 1 y\n"))))
|
||
|
||
(defun nnultimate-find-forum-table (contents)
|
||
(catch 'found
|
||
(nnultimate-find-forum-table-1 contents)))
|
||
|
||
(defun nnultimate-find-forum-table-1 (contents)
|
||
(dolist (element contents)
|
||
(unless (stringp element)
|
||
(when (and (eq (car element) 'table)
|
||
(nnultimate-forum-table-p element))
|
||
(throw 'found element))
|
||
(when (nth 2 element)
|
||
(nnultimate-find-forum-table-1 (nth 2 element))))))
|
||
|
||
(defun nnultimate-forum-table-p (parse)
|
||
(when (not (apply 'gnus-or
|
||
(mapcar
|
||
(lambda (p)
|
||
(nnweb-parse-find 'table p))
|
||
(nth 2 parse))))
|
||
(let ((href (cdr (assq 'href (nth 1 (nnweb-parse-find 'a parse 20)))))
|
||
case-fold-search)
|
||
(when (and href (string-match nnultimate-table-regexp href))
|
||
t))))
|
||
|
||
(provide 'nnultimate)
|
||
|
||
;; Local Variables:
|
||
;; coding: iso-8859-1
|
||
;; End:
|
||
|
||
;;; arch-tag: ab6bfc45-8fe1-4647-9c78-41050eb152b8
|
||
;;; nnultimate.el ends here
|