lisp/gnus/nnlistserv.el

   1 ;;; nnlistserv.el --- retrieving articles via web mailing list archives
   2
   3 ;; Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   4 ;;   2005, 2006, 2007, 2008 Free Software Foundation, Inc.
   5
   6 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
   7 ;; Keywords: news, mail
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;;; Code:
  27
  28 (eval-when-compile (require 'cl))
  29
  30 (require 'nnoo)
  31 (require 'mm-url)
  32 (require 'nnweb)
  33
  34 (nnoo-declare nnlistserv
  35   nnweb)
  36
  37 (defvoo nnlistserv-directory (nnheader-concat gnus-directory "nnlistserv/")
  38   "Where nnlistserv will save its files."
  39   nnweb-directory)
  40
  41 (defvoo nnlistserv-name 'kk
  42   "What search engine type is being used."
  43   nnweb-type)
  44
  45 (defvoo nnlistserv-type-definition
  46     '((kk
  47        (article . nnlistserv-kk-wash-article)
  48        (map . nnlistserv-kk-create-mapping)
  49        (search . nnlistserv-kk-search)
  50        (address . "http://www.itk.ntnu.no/ansatte/Andresen_Trond/kk-f/%s/")
  51        (pages "fra160396" "fra160796" "fra061196" "fra160197"
  52               "fra090997" "fra040797" "fra130397" "nye")
  53        (index . "date.html")
  54        (identifier . nnlistserv-kk-identity)))
  55   "Type-definition alist."
  56   nnweb-type-definition)
  57
  58 (defvoo nnlistserv-search nil
  59   "Search string to feed to DejaNews."
  60   nnweb-search)
  61
  62 (defvoo nnlistserv-ephemeral-p nil
  63   "Whether this nnlistserv server is ephemeral."
  64   nnweb-ephemeral-p)
  65
  66 ;;; Internal variables
  67
  68 ;;; Interface functions
  69
  70 (nnoo-define-basics nnlistserv)
  71
  72 (nnoo-import nnlistserv
  73   (nnweb))
  74
  75 ;;; Internal functions
  76
  77 ;;;
  78 ;;; KK functions.
  79 ;;;
  80
  81 (defun nnlistserv-kk-create-mapping ()
  82   "Perform the search and create a number-to-url alist."
  83   (save-excursion
  84     (set-buffer nnweb-buffer)
  85     (let ((case-fold-search t)
  86           (active (or (cadr (assoc nnweb-group nnweb-group-alist))
  87                       (cons 1 0)))
  88           (pages (nnweb-definition 'pages))
  89           map url page subject from )
  90       (while (setq page (pop pages))
  91         (erase-buffer)
  92         (when (funcall (nnweb-definition 'search) page)
  93           ;; Go through all the article hits on this page.
  94           (goto-char (point-min))
  95           (mm-url-decode-entities)
  96           (goto-char (point-min))
  97           (while (re-search-forward "^<li> *<a href=\"\\([^\"]+\\)\"><b>\\([^\\>]+\\)</b></a> *<[^>]+><i>\\([^>]+\\)<" nil t)
  98             (setq url (match-string 1)
  99                   subject (match-string 2)
 100                   from (match-string 3))
 101             (setq url (concat (format (nnweb-definition 'address) page) url))
 102             (unless (nnweb-get-hashtb url)
 103               (push
 104                (list
 105                 (incf (cdr active))
 106                 (make-full-mail-header
 107                  (cdr active) subject from ""
 108                  (concat "<" (nnweb-identifier url) "@kk>")
 109                  nil 0 0 url))
 110                map)
 111               (nnweb-set-hashtb (cadar map) (car map))
 112               (nnheader-message 5 "%s %s %s" (cdr active) (point) pages)))))
 113       ;; Return the articles in the right order.
 114       (setq nnweb-articles
 115             (sort (nconc nnweb-articles map) 'car-less-than-car)))))
 116
 117 (defun nnlistserv-kk-wash-article ()
 118   (let ((case-fold-search t)
 119         (headers '(sent name email subject id))
 120         sent name email subject id)
 121     (mm-url-decode-entities)
 122     (while headers
 123       (goto-char (point-min))
 124       (re-search-forward (format "<!-- %s=\"\\([^\"]+\\)" (car headers)) nil t)
 125       (set (pop headers) (match-string 1)))
 126     (goto-char (point-min))
 127     (search-forward "<!-- body" nil t)
 128     (delete-region (point-min) (progn (forward-line 1) (point)))
 129     (goto-char (point-max))
 130     (search-backward "<!-- body" nil t)
 131     (delete-region (point-max) (progn (beginning-of-line) (point)))
 132     (mm-url-remove-markup)
 133     (goto-char (point-min))
 134     (insert (format "From: %s <%s>\n" name email)
 135             (format "Subject: %s\n" subject)
 136             (format "Message-ID: %s\n" id)
 137             (format "Date: %s\n\n" sent))))
 138
 139 (defun nnlistserv-kk-search (search)
 140   (mm-url-insert
 141    (concat (format (nnweb-definition 'address) search)
 142            (nnweb-definition 'index)))
 143   t)
 144
 145 (defun nnlistserv-kk-identity (url)
 146   "Return an unique identifier based on URL."
 147   url)
 148
 149 (provide 'nnlistserv)
 150
 151 ;; arch-tag: 7705176f-d332-4a5e-a520-d0d319445617
 152 ;;; nnlistserv.el ends here