+++ /dev/null
-;;; nnultimate.el --- interfacing with the Ultimate Bulletin Board system
-
-;; Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007, 2008, 2009, 2010 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
-
-;;; 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)
-(require 'mm-url)
-(require 'nnweb)
-(require 'parse-time)
-(autoload 'w3-parse-buffer "w3-parse")
-
-(nnoo-declare nnultimate)
-
-(defvoo nnultimate-directory (nnheader-concat gnus-directory "ultimate/")
- "Where nnultimate will save its files.")
-
-(defvoo nnultimate-address ""
- "The address of the Ultimate bulletin board.")
-
-;;; Internal variables
-
-(defvar nnultimate-groups-alist nil)
-(defvoo nnultimate-groups nil)
-(defvoo nnultimate-headers nil)
-(defvoo nnultimate-articles nil)
-(defvar nnultimate-table-regexp
- "postings.*editpost\\|forumdisplay\\|Forum[0-9]+/HTML\\|getbio")
-
-;;; Interface functions
-
-(nnoo-define-basics nnultimate)
-
-(deffoo nnultimate-retrieve-headers (articles &optional group server fetch-old)
- (nnultimate-possibly-change-server group server)
- (unless gnus-nov-is-evil
- (let* ((last (car (last articles)))
- (did nil)
- (start 1)
- (entry (assoc group nnultimate-groups))
- (sid (nth 2 entry))
- (topics (nth 4 entry))
- (mapping (nth 5 entry))
- (old-total (or (nth 6 entry) 1))
- (furl "forumdisplay.cgi?action=topics&number=%d&DaysPrune=1000")
- (furls (list (concat nnultimate-address (format furl sid))))
- (nnultimate-table-regexp
- "postings.*editpost\\|forumdisplay\\|getbio")
- headers article subject score from date lines parent point
- contents tinfo fetchers map elem a href garticles topic old-max
- inc datel table current-page total-contents pages
- farticles forum-contents parse furl-fetched mmap farticle)
- (setq map mapping)
- (while (and (setq article (car articles))
- map)
- ;; Skip past the articles in the map until we reach the
- ;; article we're looking for.
- (while (and map
- (or (> article (caar map))
- (< (cadar map) (caar map))))
- (pop map))
- (when (setq mmap (car map))
- (setq farticle -1)
- (while (and article
- (<= article (nth 1 mmap)))
- ;; Do we already have a fetcher for this topic?
- (if (setq elem (assq (nth 2 mmap) fetchers))
- ;; Yes, so we just add the spec to the end.
- (nconc elem (list (cons article
- (+ (nth 3 mmap) (incf farticle)))))
- ;; No, so we add a new one.
- (push (list (nth 2 mmap)
- (cons article
- (+ (nth 3 mmap) (incf farticle))))
- fetchers))
- (pop articles)
- (setq article (car articles)))))
- ;; Now we have the mapping from/to Gnus/nnultimate article numbers,
- ;; so we start fetching the topics that we need to satisfy the
- ;; request.
- (if (not fetchers)
- (save-excursion
- (set-buffer nntp-server-buffer)
- (erase-buffer))
- (setq nnultimate-articles nil)
- (mm-with-unibyte-buffer
- (dolist (elem fetchers)
- (setq pages 1
- current-page 1
- total-contents nil)
- (while (<= current-page pages)
- (erase-buffer)
- (setq subject (nth 2 (assq (car elem) topics)))
- (setq href (nth 3 (assq (car elem) topics)))
- (if (= current-page 1)
- (mm-url-insert href)
- (string-match "\\.html$" href)
- (mm-url-insert (concat (substring href 0 (match-beginning 0))
- "-" (number-to-string current-page)
- (match-string 0 href))))
- (goto-char (point-min))
- (setq contents
- (ignore-errors (w3-parse-buffer (current-buffer))))
- (setq table (nnultimate-find-forum-table contents))
- (goto-char (point-min))
- (when (re-search-forward "topic is \\([0-9]+\\) pages" nil t)
- (setq pages (string-to-number (match-string 1))))
- (setq contents (cdr (nth 2 (car (nth 2 table)))))
- (setq total-contents (nconc total-contents contents))
- (incf current-page))
- (when t
- (let ((i 0))
- (dolist (co total-contents)
- (push (list (or (nnultimate-topic-article-to-article
- group (car elem) (incf i))
- 1)
- co subject)
- nnultimate-articles))))
- (when nil
- (dolist (art (cdr elem))
- (when (nth (1- (cdr art)) total-contents)
- (push (list (car art)
- (nth (1- (cdr art)) total-contents)
- subject)
- nnultimate-articles))))))
- (setq nnultimate-articles
- (sort nnultimate-articles 'car-less-than-car))
- ;; Now we have all the articles, conveniently in an alist
- ;; where the key is the Gnus article number.
- (dolist (articlef nnultimate-articles)
- (setq article (nth 0 articlef)
- contents (nth 1 articlef)
- subject (nth 2 articlef))
- (setq from (mapconcat 'identity
- (nnweb-text (car (nth 2 contents)))
- " ")
- datel (nnweb-text (nth 2 (car (cdr (nth 2 contents))))))
- (while datel
- (when (string-match "Posted" (car datel))
- (setq date (substring (car datel) (match-end 0))
- datel nil))
- (pop datel))
- (when date
- (setq date (delete "" (split-string date "[-, \n\t\r ]")))
- (setq date
- (if (or (member "AM" date)
- (member "PM" date))
- (format
- "%s %s %s %s"
- (nth 1 date)
- (if (and (>= (length (nth 0 date)) 3)
- (assoc (downcase
- (substring (nth 0 date) 0 3))
- parse-time-months))
- (substring (nth 0 date) 0 3)
- (car (rassq (string-to-number (nth 0 date))
- parse-time-months)))
- (nth 2 date) (nth 3 date))
- (format "%s %s %s %s"
- (car (rassq (string-to-number (nth 1 date))
- parse-time-months))
- (nth 0 date) (nth 2 date) (nth 3 date)))))
- (push
- (cons
- article
- (make-full-mail-header
- article subject
- from (or date "")
- (concat "<" (number-to-string sid) "%"
- (number-to-string article)
- "@ultimate." server ">")
- "" 0
- (/ (length (mapconcat
- 'identity
- (nnweb-text
- (cdr (nth 2 (nth 1 (nth 2 contents)))))
- ""))
- 70)
- nil nil))
- headers))
- (setq nnultimate-headers (sort headers 'car-less-than-car))
- (save-excursion
- (set-buffer nntp-server-buffer)
- (mm-with-unibyte-current-buffer
- (erase-buffer)
- (dolist (header nnultimate-headers)
- (nnheader-insert-nov (cdr header))))))
- 'nov)))
-
-(defun nnultimate-topic-article-to-article (group topic article)
- (catch 'found
- (dolist (elem (nth 5 (assoc group nnultimate-groups)))
- (when (and (= topic (nth 2 elem))
- (>= article (nth 3 elem))
- (< article (+ (- (nth 1 elem) (nth 0 elem)) 1
- (nth 3 elem))))
- (throw 'found
- (+ (nth 0 elem) (- article (nth 3 elem))))))))
-
-(deffoo nnultimate-request-group (group &optional server dont-check)
- (nnultimate-possibly-change-server nil server)
- (when (not nnultimate-groups)
- (nnultimate-request-list))
- (unless dont-check
- (nnultimate-create-mapping group))
- (let ((elem (assoc group nnultimate-groups)))
- (cond
- ((not elem)
- (nnheader-report 'nnultimate "Group does not exist"))
- (t
- (nnheader-report 'nnultimate "Opened group %s" group)
- (nnheader-insert
- "211 %d %d %d %s\n" (cadr elem) 1 (cadr elem)
- (prin1-to-string group))))))
-
-(deffoo nnultimate-request-close ()
- (setq nnultimate-groups-alist nil
- nnultimate-groups nil))
-
-(deffoo nnultimate-request-article (article &optional group server buffer)
- (nnultimate-possibly-change-server group server)
- (let ((contents (cdr (assq article nnultimate-articles))))
- (setq contents (cddr (nth 2 (nth 1 (nth 2 (car contents))))))
- (when contents
- (save-excursion
- (set-buffer (or buffer nntp-server-buffer))
- (erase-buffer)
- (nnweb-insert-html (cons 'p (cons nil (list contents))))
- (goto-char (point-min))
- (insert "Content-Type: text/html\nMIME-Version: 1.0\n")
- (let ((header (cdr (assq article nnultimate-headers))))
- (mm-with-unibyte-current-buffer
- (nnheader-insert-header header)))
- (nnheader-report 'nnultimate "Fetched article %s" article)
- (cons group article)))))
-
-(deffoo nnultimate-request-list (&optional server)
- (nnultimate-possibly-change-server nil server)
- (mm-with-unibyte-buffer
- (mm-url-insert
- (if (string-match "/$" nnultimate-address)
- (concat nnultimate-address "Ultimate.cgi")
- nnultimate-address))
- (let ((contents (nth 2 (car (nth 2
- (nnultimate-find-forum-table
- (w3-parse-buffer (current-buffer)))))))
- sid elem description articles a href group forum
- a1 a2)
- (dolist (row contents)
- (setq row (nth 2 row))
- (when (setq a (nnweb-parse-find 'a row))
- (setq group (car (last (nnweb-text a)))
- href (cdr (assq 'href (nth 1 a))))
- (setq description (car (last (nnweb-text (nth 1 row)))))
- (setq a1 (car (last (nnweb-text (nth 2 row)))))
- (setq a2 (car (last (nnweb-text (nth 3 row)))))
- (when (string-match "^[0-9]+$" a1)
- (setq articles (string-to-number a1)))
- (when (and a2 (string-match "^[0-9]+$" a2))
- (setq articles (max articles (string-to-number a2))))
- (when href
- (string-match "number=\\([0-9]+\\)" href)
- (setq forum (string-to-number (match-string 1 href)))
- (if (setq elem (assoc group nnultimate-groups))
- (setcar (cdr elem) articles)
- (push (list group articles forum description nil nil nil nil)
- nnultimate-groups))))))
- (nnultimate-write-groups)
- (nnultimate-generate-active)
- t))
-
-(deffoo nnultimate-request-newgroups (date &optional server)
- (nnultimate-possibly-change-server nil server)
- (nnultimate-generate-active)
- t)
-
-(nnoo-define-skeleton nnultimate)
-
-;;; Internal functions
-
-(defun nnultimate-prune-days (group time)
- "Compute the number of days to fetch info for."
- (let ((old-time (nth 7 (assoc group nnultimate-groups))))
- (if (null old-time)
- 1000
- (- (time-to-days time) (time-to-days old-time)))))
-
-(defun nnultimate-create-mapping (group)
- (let* ((entry (assoc group nnultimate-groups))
- (sid (nth 2 entry))
- (topics (nth 4 entry))
- (mapping (nth 5 entry))
- (old-total (or (nth 6 entry) 1))
- (current-time (current-time))
- (furl
- (concat "forumdisplay.cgi?action=topics&number=%d&DaysPrune="
- (number-to-string
- (nnultimate-prune-days group current-time))))
- (furls (list (concat nnultimate-address (format furl sid))))
- contents forum-contents furl-fetched a subject href
- garticles topic tinfo old-max inc parse)
- (mm-with-unibyte-buffer
- (while furls
- (erase-buffer)
- (mm-url-insert (pop furls))
- (goto-char (point-min))
- (setq parse (w3-parse-buffer (current-buffer)))
- (setq contents
- (cdr (nth 2 (car (nth 2 (nnultimate-find-forum-table
- parse))))))
- (setq forum-contents (nconc contents forum-contents))
- (unless furl-fetched
- (setq furl-fetched t)
- ;; On the first time through this loop, we find all the
- ;; forum URLs.
- (dolist (a (nnweb-parse-find-all 'a parse))
- (let ((href (cdr (assq 'href (nth 1 a)))))
- (when (and href
- (string-match "forumdisplay.*startpoint" href))
- (push href furls))))
- (setq furls (nreverse furls))))
- ;; The main idea here is to map Gnus article numbers to
- ;; nnultimate article numbers. Say there are three topics in
- ;; this forum, the first with 4 articles, the seconds with 2,
- ;; and the third with 1. Then this will translate into 7 Gnus
- ;; article numbers, where 1-4 comes from the first topic, 5-6
- ;; from the second and 7 from the third. Now, then next time
- ;; the group is entered, there's 2 new articles in topic one
- ;; and 1 in topic three. Then Gnus article number 8-9 be 5-6
- ;; in topic one and 10 will be the 2 in topic three.
- (dolist (row (nreverse forum-contents))
- (setq row (nth 2 row))
- (when (setq a (nnweb-parse-find 'a row))
- (setq subject (car (last (nnweb-text a)))
- href (cdr (assq 'href (nth 1 a))))
- (let ((artlist (nreverse (nnweb-text row)))
- art)
- (while (and (not art)
- artlist)
- (when (string-match "^[0-9]+$" (car artlist))
- (setq art (1+ (string-to-number (car artlist)))))
- (pop artlist))
- (setq garticles art))
- (when garticles
- (string-match "/\\([0-9]+\\).html" href)
- (setq topic (string-to-number (match-string 1 href)))
- (if (setq tinfo (assq topic topics))
- (progn
- (setq old-max (cadr tinfo))
- (setcar (cdr tinfo) garticles))
- (setq old-max 0)
- (push (list topic garticles subject href) topics)
- (setcar (nthcdr 4 entry) topics))
- (when (not (= old-max garticles))
- (setq inc (- garticles old-max))
- (setq mapping (nconc mapping
- (list
- (list
- old-total (1- (incf old-total inc))
- topic (1+ old-max)))))
- (incf old-max inc)
- (setcar (nthcdr 5 entry) mapping)
- (setcar (nthcdr 6 entry) old-total))))))
- (setcar (nthcdr 7 entry) current-time)
- (setcar (nthcdr 1 entry) (1- old-total))
- (nnultimate-write-groups)
- mapping))
-
-(defun nnultimate-possibly-change-server (&optional group server)
- (nnultimate-init server)
- (when (and server
- (not (nnultimate-server-opened server)))
- (nnultimate-open-server server))
- (unless nnultimate-groups-alist
- (nnultimate-read-groups)
- (setq nnultimate-groups (cdr (assoc nnultimate-address
- nnultimate-groups-alist)))))
-
-(deffoo nnultimate-open-server (server &optional defs connectionless)
- (nnheader-init-server-buffer)
- (if (nnultimate-server-opened server)
- t
- (unless (assq 'nnultimate-address defs)
- (setq defs (append defs (list (list 'nnultimate-address server)))))
- (nnoo-change-server 'nnultimate server defs)))
-
-(defun nnultimate-read-groups ()
- (setq nnultimate-groups-alist nil)
- (let ((file (expand-file-name "groups" nnultimate-directory)))
- (when (file-exists-p file)
- (mm-with-unibyte-buffer
- (insert-file-contents file)
- (goto-char (point-min))
- (setq nnultimate-groups-alist (read (current-buffer)))))))
-
-(defun nnultimate-write-groups ()
- (setq nnultimate-groups-alist
- (delq (assoc nnultimate-address nnultimate-groups-alist)
- nnultimate-groups-alist))
- (push (cons nnultimate-address nnultimate-groups)
- nnultimate-groups-alist)
- (with-temp-file (expand-file-name "groups" nnultimate-directory)
- (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
projects / gnus / commitdiff