lisp/gnus/nnlistserv.el

   1 ;;; nnlistserv.el --- retrieving articles via web mailing list archives
   2
   3 ;; Copyright (C) 1997, 1998, 1999, 2000, 2004 Free Software Foundation, Inc.
   4
   5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
   6 ;; Keywords: news, mail
   7
   8 ;; This file is part of GNU Emacs.
   9
  10 ;; GNU Emacs is free software; you can redistribute it and/or modify
  11 ;; it under the terms of the GNU General Public License as published by
  12 ;; the Free Software Foundation; either version 2, or (at your option)
  13 ;; any later version.
  14
  15 ;; GNU Emacs is distributed in the hope that it will be useful,
  16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;; GNU General Public License for more details.
  19
  20 ;; You should have received a copy of the GNU General Public License
  21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23 ;; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;;; Code:
  28
  29 (eval-when-compile (require 'cl))
  30
  31 (require 'nnoo)
  32 (require 'mm-url)
  33 (require 'nnweb)
  34
  35 (nnoo-declare nnlistserv
  36   nnweb)
  37
  38 (defvoo nnlistserv-directory (nnheader-concat gnus-directory "nnlistserv/")
  39   "Where nnlistserv will save its files."
  40   nnweb-directory)
  41
  42 (defvoo nnlistserv-name 'kk
  43   "What search engine type is being used."
  44   nnweb-type)
  45
  46 (defvoo nnlistserv-type-definition
  47     '((kk
  48        (article . nnlistserv-kk-wash-article)
  49        (map . nnlistserv-kk-create-mapping)
  50        (search . nnlistserv-kk-search)
  51        (address . "http://www.itk.ntnu.no/ansatte/Andresen_Trond/kk-f/%s/")
  52        (pages "fra160396" "fra160796" "fra061196" "fra160197"
  53               "fra090997" "fra040797" "fra130397" "nye")
  54        (index . "date.html")
  55        (identifier . nnlistserv-kk-identity)))
  56   "Type-definition alist."
  57   nnweb-type-definition)
  58
  59 (defvoo nnlistserv-search nil
  60   "Search string to feed to DejaNews."
  61   nnweb-search)
  62
  63 (defvoo nnlistserv-ephemeral-p nil
  64   "Whether this nnlistserv server is ephemeral."
  65   nnweb-ephemeral-p)
  66
  67 ;;; Internal variables
  68
  69 ;;; Interface functions
  70
  71 (nnoo-define-basics nnlistserv)
  72
  73 (nnoo-import nnlistserv
  74   (nnweb))
  75
  76 ;;; Internal functions
  77
  78 ;;;
  79 ;;; KK functions.
  80 ;;;
  81
  82 (defun nnlistserv-kk-create-mapping ()
  83   "Perform the search and create a number-to-url alist."
  84   (save-excursion
  85     (set-buffer nnweb-buffer)
  86     (let ((case-fold-search t)
  87           (active (or (cadr (assoc nnweb-group nnweb-group-alist))
  88                       (cons 1 0)))
  89           (pages (nnweb-definition 'pages))
  90           map url page subject from )
  91       (while (setq page (pop pages))
  92         (erase-buffer)
  93         (when (funcall (nnweb-definition 'search) page)
  94           ;; Go through all the article hits on this page.
  95           (goto-char (point-min))
  96           (mm-url-decode-entities)
  97           (goto-char (point-min))
  98           (while (re-search-forward "^<li> *<a href=\"\\([^\"]+\\)\"><b>\\([^\\>]+\\)</b></a> *<[^>]+><i>\\([^>]+\\)<" nil t)
  99             (setq url (match-string 1)
 100                   subject (match-string 2)
 101                   from (match-string 3))
 102             (setq url (concat (format (nnweb-definition 'address) page) url))
 103             (unless (nnweb-get-hashtb url)
 104               (push
 105                (list
 106                 (incf (cdr active))
 107                 (make-full-mail-header
 108                  (cdr active) subject from ""
 109                  (concat "<" (nnweb-identifier url) "@kk>")
 110                  nil 0 0 url))
 111                map)
 112               (nnweb-set-hashtb (cadar map) (car map))
 113               (nnheader-message 5 "%s %s %s" (cdr active) (point) pages)))))
 114       ;; Return the articles in the right order.
 115       (setq nnweb-articles
 116             (sort (nconc nnweb-articles map) 'car-less-than-car)))))
 117
 118 (defun nnlistserv-kk-wash-article ()
 119   (let ((case-fold-search t)
 120         (headers '(sent name email subject id))
 121         sent name email subject id)
 122     (mm-url-decode-entities)
 123     (while headers
 124       (goto-char (point-min))
 125       (re-search-forward (format "<!-- %s=\"\\([^\"]+\\)" (car headers)) nil t)
 126       (set (pop headers) (match-string 1)))
 127     (goto-char (point-min))
 128     (search-forward "<!-- body" nil t)
 129     (delete-region (point-min) (progn (forward-line 1) (point)))
 130     (goto-char (point-max))
 131     (search-backward "<!-- body" nil t)
 132     (delete-region (point-max) (progn (beginning-of-line) (point)))
 133     (mm-url-remove-markup)
 134     (goto-char (point-min))
 135     (insert (format "From: %s <%s>\n" name email)
 136             (format "Subject: %s\n" subject)
 137             (format "Message-ID: %s\n" id)
 138             (format "Date: %s\n\n" sent))))
 139
 140 (defun nnlistserv-kk-search (search)
 141   (mm-url-insert
 142    (concat (format (nnweb-definition 'address) search)
 143            (nnweb-definition 'index)))
 144   t)
 145
 146 (defun nnlistserv-kk-identity (url)
 147   "Return an unique identifier based on URL."
 148   url)
 149
 150 (provide 'nnlistserv)
 151
 152 ;;; arch-tag: 7705176f-d332-4a5e-a520-d0d319445617
 153 ;;; nnlistserv.el ends here