git.chise.org Git - elisp/gnus.git-/blob - lisp/nnshimbun.el

   1 ;;; -*- mode: Emacs-Lisp; coding: junet -*-
   2
   3 ;;; Author: TSUCHIYA Masatoshi <tsuchiya@pine.kuee.kyoto-u.ac.jp>
   4 ;;; Keywords: news
   5
   6 ;;; Copyright:
   7
   8 ;; This file is a part of Semi-Gnus.
   9
  10 ;; This program 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 ;; This program 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 this program; if not, you can either send email to this
  22 ;; program's maintainer or write to: The Free Software Foundation,
  23 ;; Inc.; 59 Temple Place, Suite 330; Boston, MA 02111-1307, USA.
  24
  25 ;;; Commentary:
  26
  27 ;; Gnus backend to read newspapers on WEB.
  28
  29
  30 ;;; Defintinos:
  31
  32 (gnus-declare-backend "nnshimbun" 'address)
  33
  34 (eval-when-compile (require 'cl))
  35
  36 (require 'nnheader)
  37 (require 'nnmail)
  38 (require 'nnoo)
  39 (require 'gnus-bcklg)
  40 (eval-when-compile
  41   (ignore-errors
  42     (require 'nnweb)))
  43 ;; Report failure to find w3 at load time if appropriate.
  44 (eval '(require 'nnweb))
  45
  46
  47 (nnoo-declare nnshimbun)
  48
  49 (defvar nnshimbun-check-interval 300)
  50
  51 (defvar nnshimbun-type-definition
  52   `(("asahi"
  53      (url . "http://spin.asahi.com/")
  54      (groups "national" "business" "politics" "international" "sports" "personal" "feneral")
  55      (coding-system  . ,(if (boundp 'MULE) '*sjis* 'shift_jis))
  56      (generate-nov   . nnshimbun-generate-nov-for-each-group)
  57      (get-headers    . nnshimbun-asahi-get-headers)
  58      (index-url      . (format "%sp%s.html" nnshimbun-url nnshimbun-current-group))
  59      (from-address   . "webmaster@www.asahi.com")
  60      (make-contents  . nnshimbun-make-text-or-html-contents)
  61      (contents-start . "\n<!-- Start of kiji -->\n")
  62      (contents-end   . "\n<!-- End of kiji -->\n"))
  63     ("sponichi"
  64      (url . "http://www.sponichi.co.jp/")
  65      (groups "baseball" "soccer" "usa" "others" "society" "entertainment" "horseracing")
  66      (coding-system  . ,(if (boundp 'MULE) '*sjis* 'shift_jis))
  67      (generate-nov   . nnshimbun-generate-nov-for-each-group)
  68      (get-headers    . nnshimbun-sponichi-get-headers)
  69      (index-url      . (format "%s%s/index.html" nnshimbun-url nnshimbun-current-group))
  70      (from-address   . "webmaster@www.sponichi.co.jp")
  71      (make-contents  . nnshimbun-make-text-or-html-contents)
  72      (contents-start . "\n<span class=\"text\">\e$B!!\e(B")
  73      (contents-end   . "\n"))
  74     ("cnet"
  75      (url . "http://cnet.sphere.ne.jp/")
  76      (groups "comp")
  77      (coding-system  . ,(if (boundp 'MULE) '*sjis* 'shift_jis))
  78      (generate-nov   . nnshimbun-generate-nov-for-each-group)
  79      (get-headers    . nnshimbun-cnet-get-headers)
  80      (index-url      . (format "%s/News/Oneweek/" nnshimbun-url))
  81      (from-address   . "cnet@sphere.ad.jp")
  82      (make-contents  . nnshimbun-make-html-contents)
  83      (contents-start . "\n<!--KIJI-->\n")
  84      (contents-end   . "\n<!--/KIJI-->\n"))
  85     ("wired"
  86      (url . "http://www.hotwired.co.jp/")
  87      (groups "business" "culture" "technology")
  88      (coding-system  . ,(if (boundp 'MULE) '*euc-japan* 'euc-jp))
  89      (generate-nov   . nnshimbun-generate-nov-for-all-groups)
  90      (get-headers    . nnshimbun-wired-get-all-headers)
  91      (index-url)
  92      (from-address   . "webmaster@www.hotwired.co.jp")
  93      (make-contents  . nnshimbun-make-html-contents)
  94      (contents-start . "\n<!-- START_OF_BODY -->\n")
  95      (contents-end   . "\n<!-- END_OF_BODY -->\n"))
  96     ("yomiuri"
  97      (url . "http://www.yomiuri.co.jp/")
  98      (groups "shakai" "sports" "seiji" "keizai" "kokusai" "fuho")
  99      (coding-system  . ,(if (boundp 'MULE) '*sjis* 'shift_jis))
 100      (generate-nov   . nnshimbun-generate-nov-for-all-groups)
 101      (get-headers    . nnshimbun-yomiuri-get-all-headers)
 102      (index-url      . (concat nnshimbun-url "main.htm"))
 103      (from-address   . "webmaster@www.yomiuri.co.jp")
 104      (make-contents  . nnshimbun-make-text-or-html-contents)
 105      (contents-start . "\n<!--  honbun start  -->\n")
 106      (contents-end   . "\n<!--  honbun end  -->\n"))
 107     ("zdnet"
 108      (url . "http://zdseek.pub.softbank.co.jp/news/")
 109      (groups "comp")
 110      (coding-system  . ,(if (boundp 'MULE) '*sjis* 'shift_jis))
 111      (generate-nov   . nnshimbun-generate-nov-for-each-group)
 112      (get-headers    . nnshimbun-zdnet-get-headers)
 113      (index-url      . nnshimbun-url)
 114      (from-address   . "zdnn@softbank.co.jp")
 115      (make-contents  . nnshimbun-make-html-contents)
 116      (contents-start . "<!--BODY-->")
 117      (contents-end   . "<!--BODYEND-->"))
 118     ))
 119
 120 (defvar nnshimbun-x-face-alist
 121   '(("default" .
 122      (("default" .
 123        "X-Face: Ygq$6P.,%Xt$U)DS)cRY@k$VkW!7(X'X'?U{{osjjFG\"E]hND;SPJ-J?O?R|a?L
 124         g2$0rVng=O3Lt}?~IId8Jj&vP^3*o=LKUyk(`t%0c!;t6REk=JbpsEn9MrN7gZ%"))))
 125   "Alist of server vs. alist of group vs. X-Face field.  It looks like:
 126
 127 \((\"asahi\" . ((\"national\" . \"X-face: ***\")
 128              (\"business\" . \"X-Face: ***\")
 129                 ;;
 130                 ;;
 131              (\"default\" . \"X-face: ***\")))
 132  (\"sponichi\" . ((\"baseball\" . \"X-face: ***\")
 133                 (\"soccer\" . \"X-Face: ***\")
 134                 ;;
 135                 ;;
 136                 (\"default\" . \"X-face: ***\")))
 137                 ;;
 138  (\"default\" . ((\"default\" . \"X-face: ***\")))")
 139
 140 (defvoo nnshimbun-directory (nnheader-concat gnus-directory "shimbun/")
 141   "Where nnshimbun will save its files.")
 142
 143 (defvoo nnshimbun-nov-is-evil nil
 144   "*Non-nil means that nnshimbun will never retrieve NOV headers.")
 145
 146 (defvoo nnshimbun-nov-file-name ".overview")
 147
 148 (defvoo nnshimbun-pre-fetch-article nil
 149   "*Non nil means that nnshimbun fetch unread articles when scanning groups.")
 150
 151 ;; set by nnshimbun-possibly-change-group
 152 (defvoo nnshimbun-buffer nil)
 153 (defvoo nnshimbun-current-directory nil)
 154 (defvoo nnshimbun-current-group nil)
 155
 156 ;; set by nnshimbun-open-server
 157 (defvoo nnshimbun-url nil)
 158 (defvoo nnshimbun-coding-system nil)
 159 (defvoo nnshimbun-groups nil)
 160 (defvoo nnshimbun-generate-nov nil)
 161 (defvoo nnshimbun-get-headers nil)
 162 (defvoo nnshimbun-index-url nil)
 163 (defvoo nnshimbun-from-address nil)
 164 (defvoo nnshimbun-make-contents nil)
 165 (defvoo nnshimbun-contents-start nil)
 166 (defvoo nnshimbun-contents-end nil)
 167 (defvoo nnshimbun-server-directory nil)
 168
 169 (defvoo nnshimbun-status-string "")
 170 (defvoo nnshimbun-nov-last-check nil)
 171 (defvoo nnshimbun-nov-buffer-alist nil)
 172 (defvoo nnshimbun-nov-buffer-file-name nil)
 173
 174 (defvoo nnshimbun-keep-backlog 300)
 175 (defvoo nnshimbun-backlog-articles nil)
 176 (defvoo nnshimbun-backlog-hashtb nil)
 177
 178
 179
 180 ;;; backlog
 181 (defmacro nnshimbun-backlog (&rest form)
 182   `(let ((gnus-keep-backlog nnshimbun-keep-backlog)
 183          (gnus-backlog-buffer (format " *nnshimbun backlog %s*" (nnoo-current-server 'nnshimbun)))
 184          (gnus-backlog-articles nnshimbun-backlog-articles)
 185          (gnus-backlog-hashtb nnshimbun-backlog-hashtb))
 186      (unwind-protect
 187          (progn ,@form)
 188        (setq nnshimbun-backlog-articles gnus-backlog-articles
 189              nnshimbun-backlog-hashtb gnus-backlog-hashtb))))
 190 (put 'nnshimbun-backlog 'lisp-indent-function 0)
 191 (put 'nnshimbun-backlog 'edebug-form-spec '(form body))
 192
 193
 194
 195 ;;; Interface Functions
 196 (nnoo-define-basics nnshimbun)
 197
 198 (deffoo nnshimbun-open-server (server &optional defs)
 199   ;; Set default values.
 200   (dolist (default (cdr (assoc server nnshimbun-type-definition)))
 201     (let ((symbol (intern (concat "nnshimbun-" (symbol-name (car default))))))
 202       (unless (assq symbol defs)
 203         (push (list symbol (cdr default)) defs))))
 204   ;; Set directory for server working files.
 205   (push (list 'nnshimbun-server-directory
 206               (file-name-as-directory
 207                (expand-file-name server nnshimbun-directory)))
 208         defs)
 209   (nnoo-change-server 'nnshimbun server defs)
 210   (nnshimbun-possibly-change-group nil server)
 211   ;; Make directories.
 212   (unless (file-exists-p nnshimbun-directory)
 213     (ignore-errors (make-directory nnshimbun-directory t)))
 214   (cond
 215    ((not (file-exists-p nnshimbun-directory))
 216     (nnshimbun-close-server)
 217     (nnheader-report 'nnshimbun "Couldn't create directory: %s" nnshimbun-directory))
 218    ((not (file-directory-p (file-truename nnshimbun-directory)))
 219     (nnshimbun-close-server)
 220     (nnheader-report 'nnshimbun "Not a directory: %s" nnshimbun-directory))
 221    (t
 222     (unless (file-exists-p nnshimbun-server-directory)
 223       (ignore-errors (make-directory nnshimbun-server-directory t)))
 224     (cond
 225      ((not (file-exists-p nnshimbun-server-directory))
 226       (nnshimbun-close-server)
 227       (nnheader-report 'nnshimbun "Couldn't create directory: %s" nnshimbun-server-directory))
 228      ((not (file-directory-p (file-truename nnshimbun-server-directory)))
 229       (nnshimbun-close-server)
 230       (nnheader-report 'nnshimbun "Not a directory: %s" nnshimbun-server-directory))
 231      (t
 232       (nnheader-report 'nnshimbun "Opened server %s using directory %s"
 233                        server nnshimbun-server-directory)
 234       t)))))
 235
 236 (deffoo nnshimbun-close-server (&optional server)
 237   (and (nnshimbun-server-opened server)
 238        (gnus-buffer-live-p nnshimbun-buffer)
 239        (kill-buffer nnshimbun-buffer))
 240   (nnshimbun-backlog (gnus-backlog-shutdown))
 241   (nnshimbun-save-nov)
 242   (nnoo-close-server 'nnshimbun server)
 243   t)
 244
 245 (defun nnshimbun-retrieve-url (url &optional no-cache)
 246   "Rertrieve URL contents and insert to current buffer."
 247   (let ((coding-system-for-read 'binary)
 248         (coding-system-for-write 'binary))
 249     (set-buffer-multibyte nil)
 250     ;; Following code is imported from `url-insert-file-contents'.
 251     (save-excursion
 252       (let ((old-asynch (default-value 'url-be-asynchronous))
 253             (old-caching (default-value 'url-automatic-caching))
 254             (old-mode (default-value 'url-standalone-mode)))
 255         (unwind-protect
 256             (progn
 257               (setq-default url-be-asynchronous nil)
 258               (when no-cache
 259                 (setq-default url-automatic-caching nil)
 260                 (setq-default url-standalone-mode nil))
 261               (let ((buf (current-buffer))
 262                     (url-working-buffer (cdr (url-retrieve url no-cache))))
 263                 (set-buffer url-working-buffer)
 264                 (url-uncompress)
 265                 (set-buffer buf)
 266                 (insert-buffer url-working-buffer)
 267                 (save-excursion
 268                   (set-buffer url-working-buffer)
 269                   (set-buffer-modified-p nil))
 270                 (kill-buffer url-working-buffer)))
 271           (setq-default url-be-asynchronous old-asynch)
 272           (setq-default url-automatic-caching old-caching)
 273           (setq-default url-standalone-mode old-mode))))
 274     ;; Modify buffer coding system.
 275     (decode-coding-region (point-min) (point-max) nnshimbun-coding-system)
 276     (set-buffer-multibyte t)))
 277
 278 (deffoo nnshimbun-request-article (article &optional group server to-buffer)
 279   (when (nnshimbun-possibly-change-group group server)
 280     (if (stringp article)
 281         (setq article (nnshimbun-search-id group article)))
 282     (if (integerp article)
 283         (nnshimbun-request-article-1 article group server to-buffer)
 284       (nnheader-report 'nnml "Couldn't retrieve article: %s" (prin1-to-string article))
 285       nil)))
 286
 287 (defun nnshimbun-request-article-1 (article &optional group server to-buffer)
 288   (if (nnshimbun-backlog
 289         (gnus-backlog-request-article
 290          group article (or to-buffer nntp-server-buffer)))
 291       (cons group article)
 292     (let (header contents)
 293       (when (setq header (save-excursion
 294                            (set-buffer (nnshimbun-open-nov group))
 295                            (and (nnheader-find-nov-line article)
 296                                 (nnheader-parse-nov))))
 297         (let* ((xref (substring (mail-header-xref header) 6))
 298                (x-faces (cdr (or (assoc server nnshimbun-x-face-alist)
 299                                  (assoc "default" nnshimbun-x-face-alist))))
 300                (x-face (cdr (or (assoc group x-faces)
 301                                 (assoc "default" x-faces)))))
 302           (save-excursion
 303             (set-buffer nnshimbun-buffer)
 304             (erase-buffer)
 305             (nnshimbun-retrieve-url xref)
 306             (nnheader-message 6 "nnshimbun: Make contents...")
 307             (goto-char (point-min))
 308             (setq contents (funcall nnshimbun-make-contents header x-face))
 309             (nnheader-message 6 "nnshimbun: Make contents...done"))))
 310       (when contents
 311         (save-excursion
 312           (set-buffer (or to-buffer nntp-server-buffer))
 313           (erase-buffer)
 314           (insert contents)
 315           (nnshimbun-backlog
 316             (gnus-backlog-enter-article group article (current-buffer)))
 317           (nnheader-report 'nnshimbun "Article %s retrieved" (mail-header-id header))
 318           (cons group (mail-header-number header)))))))
 319
 320 (deffoo nnshimbun-request-group (group &optional server dont-check)
 321   (let ((pathname-coding-system 'binary))
 322     (cond
 323      ((not (nnshimbun-possibly-change-group group server))
 324       (nnheader-report 'nnshimbun "Invalid group (no such directory)"))
 325      ((not (file-exists-p nnshimbun-current-directory))
 326       (nnheader-report 'nnshimbun "Directory %s does not exist"
 327                        nnshimbun-current-directory))
 328      ((not (file-directory-p nnshimbun-current-directory))
 329       (nnheader-report 'nnshimbun "%s is not a directory" nnshimbun-current-directory))
 330      (dont-check
 331       (nnheader-report 'nnshimbun "Group %s selected" group)
 332       t)
 333      (t
 334       (let (beg end lines)
 335         (save-excursion
 336           (set-buffer (nnshimbun-open-nov group))
 337           (goto-char (point-min))
 338           (setq beg (ignore-errors (read (current-buffer))))
 339           (goto-char (point-max))
 340           (forward-line -1)
 341           (setq end (ignore-errors (read (current-buffer)))
 342                 lines (count-lines (point-min) (point-max))))
 343         (nnheader-report 'nnshimbunw "Selected group %s" group)
 344         (nnheader-insert "211 %d %d %d %s\n"
 345                          lines (or beg 0) (or end 0) group))))))
 346
 347 (deffoo nnshimbun-request-scan (&optional group server)
 348   (nnshimbun-possibly-change-group group server)
 349   (nnshimbun-generate-nov-database group))
 350
 351 (deffoo nnshimbun-close-group (group &optional server)
 352   (nnshimbun-write-nov group)
 353   t)
 354
 355 (deffoo nnshimbun-request-list (&optional server)
 356   (save-excursion
 357     (set-buffer nntp-server-buffer)
 358     (erase-buffer)
 359     (dolist (group nnshimbun-groups)
 360       (when (nnshimbun-possibly-change-group group server)
 361         (let (beg end)
 362           (save-excursion
 363             (set-buffer (nnshimbun-open-nov group))
 364             (goto-char (point-min))
 365             (setq beg (ignore-errors (read (current-buffer))))
 366             (goto-char (point-max))
 367             (forward-line -1)
 368             (setq end (ignore-errors (read (current-buffer)))))
 369           (insert (format "%s %d %d n\n" group (or end 0) (or beg 0)))))))
 370   t) ; return value
 371
 372 (eval-and-compile
 373   (if (fboundp 'mime-entity-fetch-field)
 374       ;; For Semi-Gnus.
 375       (defun nnshimbun-insert-header (header)
 376         (insert "Subject: " (or (mime-entity-fetch-field header 'Subject) "(none)") "\n"
 377                 "From: " (or (mime-entity-fetch-field header 'From) "(nobody)") "\n"
 378                 "Date: " (or (mail-header-date header) "") "\n"
 379                 "Message-ID: " (or (mail-header-id header) (nnmail-message-id)) "\n"
 380                 "References: " (or (mail-header-references header) "") "\n"
 381                 "Lines: ")
 382         (princ (or (mail-header-lines header) 0) (current-buffer))
 383         (insert "\n")
 384         (if (mail-header-xref header)
 385             (insert (mail-header-xref header) "\n")))
 386     ;; For pure Gnus.
 387     (defun nnshimbun-insert-header (header)
 388       (nnheader-insert-header header)
 389       (delete-char -1)
 390       (if (mail-header-xref header)
 391           (insert (mail-header-xref header) "\n")))))
 392
 393 (deffoo nnshimbun-retrieve-headers (articles &optional group server fetch-old)
 394   (when (nnshimbun-possibly-change-group group server)
 395     (if (nnshimbun-retrieve-headers-with-nov articles fetch-old)
 396         'nov
 397       (save-excursion
 398         (set-buffer nntp-server-buffer)
 399         (erase-buffer)
 400         (let (header)
 401           (dolist (art articles)
 402             (if (stringp art)
 403                 (setq art (nnshimbun-search-id group art)))
 404             (if (integerp art)
 405                 (when (setq header
 406                             (save-excursion
 407                               (set-buffer (nnshimbun-open-nov group))
 408                               (and (nnheader-find-nov-line art)
 409                                    (nnheader-parse-nov))))
 410                   (insert (format "220 %d Article retrieved.\n" art))
 411                   (nnshimbun-insert-header header)
 412                   (insert ".\n")
 413                   (delete-region (point) (point-max))))))
 414         'header))))
 415
 416 (defun nnshimbun-retrieve-headers-with-nov (articles &optional fetch-old)
 417   (if (or gnus-nov-is-evil nnshimbun-nov-is-evil)
 418       nil
 419     (let ((nov (expand-file-name nnshimbun-nov-file-name nnshimbun-current-directory)))
 420       (when (file-exists-p nov)
 421         (save-excursion
 422           (set-buffer nntp-server-buffer)
 423           (erase-buffer)
 424           (nnheader-insert-file-contents nov)
 425           (if (and fetch-old (not (numberp fetch-old)))
 426               t                         ; Don't remove anything.
 427             (nnheader-nov-delete-outside-range
 428              (if fetch-old (max 1 (- (car articles) fetch-old))
 429                (car articles))
 430              (car (last articles)))
 431             t))))))
 432
 433
 434
 435 ;;; Nov Database Operations
 436
 437 (defun nnshimbun-generate-nov-database (group)
 438   (prog1 (funcall nnshimbun-generate-nov group)
 439     (nnshimbun-write-nov group)))
 440
 441 (defun nnshimbun-generate-nov-for-each-group (group)
 442   (nnshimbun-possibly-change-group group)
 443   (save-excursion
 444     (set-buffer (nnshimbun-open-nov group))
 445     (let (i)
 446       (goto-char (point-max))
 447       (forward-line -1)
 448       (setq i (or (ignore-errors (read (current-buffer))) 0))
 449       (dolist (header (save-excursion
 450                         (set-buffer nnshimbun-buffer)
 451                         (erase-buffer)
 452                         (nnshimbun-retrieve-url (eval nnshimbun-index-url) t)
 453                         (goto-char (point-min))
 454                         (funcall nnshimbun-get-headers)))
 455         (unless (nnshimbun-search-id group (mail-header-id header))
 456           (mail-header-set-number header (setq i (1+ i)))
 457           (goto-char (point-max))
 458           (nnheader-insert-nov header)
 459           (if nnshimbun-pre-fetch-article
 460               (nnshimbun-request-article-1 i group nil nnshimbun-buffer)))))))
 461
 462 (defun nnshimbun-generate-nov-for-all-groups (&rest args)
 463   (unless (and nnshimbun-nov-last-check
 464                (< (nnshimbun-lapse-seconds nnshimbun-nov-last-check)
 465                   nnshimbun-check-interval))
 466     (save-excursion
 467       (dolist (list (funcall nnshimbun-get-headers))
 468         (let ((group (car list)))
 469           (nnshimbun-possibly-change-group group)
 470           (when (cdr list)
 471             (set-buffer (nnshimbun-open-nov group))
 472             (let (i)
 473               (goto-char (point-max))
 474               (forward-line -1)
 475               (setq i (or (ignore-errors (read (current-buffer))) 0))
 476               (dolist (header (cdr list))
 477                 (unless (nnshimbun-search-id group (mail-header-id header))
 478                   (mail-header-set-number header (setq i (1+ i)))
 479                   (goto-char (point-max))
 480                   (nnheader-insert-nov header)
 481                   (if nnshimbun-pre-fetch-article
 482                       (nnshimbun-request-article-1 i group nil nnshimbun-buffer))))))))
 483       (nnshimbun-save-nov)
 484       (setq nnshimbun-nov-last-check (current-time)))))
 485
 486 (defun nnshimbun-search-id (group id &optional nov)
 487   (save-excursion
 488     (set-buffer (nnshimbun-open-nov group))
 489     (goto-char (point-min))
 490     (let (found)
 491       (while (and (not found)
 492                   (search-forward id nil t)) ; We find the ID.
 493         ;; And the id is in the fourth field.
 494         (if (not (and (search-backward "\t" nil t 4)
 495                       (not (search-backward "\t" (gnus-point-at-bol) t))))
 496             (forward-line 1)
 497           (forward-line 0)
 498           (setq found t)))
 499       (unless found
 500         (goto-char (point-min))
 501         (when (search-forward (concat "X-Nnshimbun-Original-Id: " id) nil t)
 502           (forward-line 0)
 503           (setq found t)))
 504       (if found
 505           (if nov
 506               (nnheader-parse-nov)
 507             ;; We return the article number.
 508             (ignore-errors (read (current-buffer))))))))
 509
 510 (defun nnshimbun-nov-fix-header (group header args)
 511   (save-excursion
 512     (set-buffer (nnshimbun-open-nov group))
 513     (when (nnheader-find-nov-line (mail-header-number header))
 514       (dolist (arg args)
 515         (if (eq (car arg) 'id)
 516             (let ((extra (mail-header-extra header)) x)
 517               (when (setq x (assq 'X-Nnshimbun-Original-Id extra))
 518                 (setq extra (delq x extra)))
 519               (mail-header-set-extra
 520                header
 521                (cons (cons 'X-Nnshimbun-Original-Id (cdr arg)) extra)))
 522           (let ((func (intern (concat "mail-header-set-" (symbol-name (car arg))))))
 523             (if (cdr arg) (eval (list func header (cdr arg)))))))
 524       (let ((xref (mail-header-xref header)))
 525         (when (string-match "^Xref: " xref)
 526           (mail-header-set-xref header (substring xref 6))))
 527       (delete-region (point) (progn (forward-line 1) (point)))
 528       (nnheader-insert-nov header))))
 529
 530 (defun nnshimbun-open-nov (group)
 531   (let ((buffer (cdr (assoc group nnshimbun-nov-buffer-alist))))
 532     (if (buffer-live-p buffer)
 533         buffer
 534       (setq buffer (gnus-get-buffer-create
 535                     (format " *nnshimbun overview %s %s*"
 536                             (nnoo-current-server 'nnshimbun) group)))
 537       (save-excursion
 538         (set-buffer buffer)
 539         (set (make-local-variable 'nnshimbun-nov-buffer-file-name)
 540              (expand-file-name
 541               nnshimbun-nov-file-name
 542               (nnmail-group-pathname group nnshimbun-server-directory)))
 543         (erase-buffer)
 544         (when (file-exists-p nnshimbun-nov-buffer-file-name)
 545           (nnheader-insert-file-contents nnshimbun-nov-buffer-file-name))
 546         (set-buffer-modified-p nil))
 547       (push (cons group buffer) nnshimbun-nov-buffer-alist)
 548       buffer)))
 549
 550 (defun nnshimbun-write-nov (group)
 551   (let ((buffer (cdr (assoc group nnshimbun-nov-buffer-alist))))
 552     (when (buffer-live-p buffer)
 553       (save-excursion
 554         (set-buffer buffer)
 555         (buffer-modified-p)
 556         (nnmail-write-region 1 (point-max) nnshimbun-nov-buffer-file-name
 557                              nil 'nomesg)))))
 558
 559 (defun nnshimbun-save-nov ()
 560   (save-excursion
 561     (while nnshimbun-nov-buffer-alist
 562       (when (buffer-name (cdar nnshimbun-nov-buffer-alist))
 563         (set-buffer (cdar nnshimbun-nov-buffer-alist))
 564         (when (buffer-modified-p)
 565           (nnmail-write-region 1 (point-max) nnshimbun-nov-buffer-file-name
 566                                nil 'nomesg))
 567         (set-buffer-modified-p nil)
 568         (kill-buffer (current-buffer)))
 569       (setq nnshimbun-nov-buffer-alist (cdr nnshimbun-nov-buffer-alist)))))
 570
 571
 572
 573 ;;; Server Initialize
 574 (defun nnshimbun-possibly-change-group (group &optional server)
 575   (when server
 576     (unless (nnshimbun-server-opened server)
 577       (nnshimbun-open-server server)))
 578   (unless (gnus-buffer-live-p nnshimbun-buffer)
 579     (setq nnshimbun-buffer
 580           (save-excursion
 581             (nnheader-set-temp-buffer
 582              (format " *nnshimbun %s*" (nnoo-current-server 'nnshimbun))))))
 583   (if (not group)
 584       t
 585     (let ((pathname (nnmail-group-pathname group nnshimbun-server-directory))
 586           (pathname-coding-system 'binary))
 587       (unless (equal pathname nnshimbun-current-directory)
 588         (setq nnshimbun-current-directory pathname
 589               nnshimbun-current-group group))
 590       (unless (file-exists-p nnshimbun-current-directory)
 591         (ignore-errors (make-directory nnshimbun-current-directory t)))
 592       (cond
 593        ((not (file-exists-p nnshimbun-current-directory))
 594         (nnheader-report 'nnshimbun "Couldn't create directory: %s" nnshimbun-current-directory))
 595        ((not (file-directory-p (file-truename nnshimbun-current-directory)))
 596         (nnheader-report 'nnshimbun "Not a directory: %s" nnshimbun-current-directory))
 597        (t t)))))
 598
 599
 600
 601 ;;; Misc Functions
 602
 603 (eval-and-compile
 604   (if (fboundp 'eword-encode-string)
 605       ;; For Semi-Gnus.
 606       (defun nnshimbun-mime-encode-string (string)
 607         (mapconcat
 608          #'identity
 609          (split-string (eword-encode-string (nnweb-decode-entities-string string)) "\n")
 610          ""))
 611     ;; For pure Gnus.
 612     (defun nnshimbun-mime-encode-string (string)
 613       (mapconcat
 614        #'identity
 615        (split-string
 616         (with-temp-buffer
 617           (insert (nnweb-decode-entities-string string))
 618           (rfc2047-encode-region (point-min) (point-max))
 619           (buffer-substring (point-min) (point-max)))
 620         "\n")
 621        ""))))
 622
 623 (defun nnshimbun-lapse-seconds (time)
 624   (let ((now (current-time)))
 625     (+ (* (- (car now) (car time)) 65536)
 626        (- (nth 1 now) (nth 1 time)))))
 627
 628 (defun nnshimbun-make-date-string (year month day &optional time)
 629   (format "%02d %s %04d %s +0900"
 630           day
 631           (aref [nil "Jan" "Feb" "Mar" "Apr" "May" "Jun"
 632                      "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"]
 633                 month)
 634           (cond ((< year 69)
 635                  (+ year 2000))
 636                 ((< year 100)
 637                  (+ year 1900))
 638                 ((< year 1000)  ; possible 3-digit years.
 639                  (+ year 1900))
 640                 (t year))
 641           (or time "00:00")))
 642
 643 (if (fboundp 'regexp-opt)
 644     (defalias 'nnshimbun-regexp-opt 'regexp-opt)
 645   (defun nnshimbun-regexp-opt (strings &optional paren)
 646     "Return a regexp to match a string in STRINGS.
 647 Each string should be unique in STRINGS and should not contain any regexps,
 648 quoted or not.  If optional PAREN is non-nil, ensure that the returned regexp
 649 is enclosed by at least one regexp grouping construct."
 650     (let ((open-paren (if paren "\\(" "")) (close-paren (if paren "\\)" "")))
 651       (concat open-paren (mapconcat 'regexp-quote strings "\\|") close-paren))))
 652
 653
 654 ;; Fast fill-region function
 655
 656 (defvar nnshimbun-fill-column (min 80 (- (frame-width) 4)))
 657
 658 (defconst nnshimbun-kinsoku-bol-list
 659   (funcall
 660    (if (fboundp 'string-to-char-list)
 661        'string-to-char-list
 662      'string-to-list) "\
 663 !)-_~}]:;',.?\e$B!"!#!$!%!&!'!(!)!*!+!,!-!.!/!0!1!2!3!4!5!6!7!8!9!:!;!<!=!>!?!@!A\e(B\
 664 \e$B!B!C!D!E!G!I!K!M!O!Q!S!U!W!Y![!k!l!m!n$!$#$%$'$)$C$c$e$g$n%!%#%%%'%)%C%c%e%g%n%u%v\e(B"))
 665
 666 (defconst nnshimbun-kinsoku-eol-list
 667   (funcall
 668    (if (fboundp 'string-to-char-list)
 669        'string-to-char-list
 670      'string-to-list)
 671    "({[`\e$B!F!H!J!L!N!P!R!T!V!X!Z!k!l!m!x\e(B"))
 672
 673 (defun nnshimbun-fill-line ()
 674   (forward-line 0)
 675   (let ((top (point)) chr)
 676     (while (if (>= (move-to-column nnshimbun-fill-column)
 677                    nnshimbun-fill-column)
 678                (not (progn
 679                       (if (memq (preceding-char) nnshimbun-kinsoku-eol-list)
 680                           (progn
 681                             (backward-char)
 682                             (while (memq (preceding-char) nnshimbun-kinsoku-eol-list)
 683                               (backward-char))
 684                             (insert "\n"))
 685                         (while (memq (setq chr (following-char)) nnshimbun-kinsoku-bol-list)
 686                           (forward-char))
 687                         (if (looking-at "\\s-+")
 688                             (or (eolp) (delete-region (point) (match-end 0)))
 689                           (or (> (char-width chr) 1)
 690                               (re-search-backward "\\<" top t)
 691                               (end-of-line)))
 692                         (or (eolp) (insert "\n"))))))
 693       (setq top (point))))
 694   (forward-line 1)
 695   (not (eobp)))
 696
 697 (defsubst nnshimbun-shallow-rendering ()
 698   (goto-char (point-min))
 699   (while (search-forward "<p>" nil t)
 700     (insert "\n\n"))
 701   (goto-char (point-min))
 702   (while (search-forward "<br>" nil t)
 703     (insert "\n"))
 704   (nnweb-remove-markup)
 705   (nnweb-decode-entities)
 706   (goto-char (point-min))
 707   (while (nnshimbun-fill-line))
 708   (goto-char (point-min))
 709   (when (skip-chars-forward "\n")
 710     (delete-region (point-min) (point)))
 711   (while (search-forward "\n\n" nil t)
 712     (let ((p (point)))
 713       (when (skip-chars-forward "\n")
 714         (delete-region p (point)))))
 715   (goto-char (point-max))
 716   (when (skip-chars-backward "\n")
 717     (delete-region (point) (point-max)))
 718   (insert "\n"))
 719
 720 (defun nnshimbun-make-text-or-html-contents (header &optional x-face)
 721   (let ((case-fold-search t) (html t) (start))
 722     (when (and (search-forward nnshimbun-contents-start nil t)
 723                (setq start (point))
 724                (search-forward nnshimbun-contents-end nil t))
 725       (delete-region (point-min) start)
 726       (delete-region (- (point) (length nnshimbun-contents-end)) (point-max))
 727       (nnshimbun-shallow-rendering)
 728       (setq html nil))
 729     (goto-char (point-min))
 730     (nnshimbun-insert-header header)
 731     (insert "Content-Type: " (if html "text/html" "text/plain")
 732             "; charset=ISO-2022-JP\nMIME-Version: 1.0\n")
 733     (when x-face
 734       (insert x-face)
 735       (unless (bolp)
 736         (insert "\n")))
 737     (insert "\n")
 738     (encode-coding-string (buffer-string)
 739                           (mime-charset-to-coding-system "ISO-2022-JP"))))
 740
 741 (defun nnshimbun-make-html-contents (header &optional x-face)
 742   (let (start)
 743     (when (and (search-forward nnshimbun-contents-start nil t)
 744                (setq start (point))
 745                (search-forward nnshimbun-contents-end nil t))
 746       (delete-region (point-min) start)
 747       (delete-region (- (point) (length nnshimbun-contents-end)) (point-max)))
 748     (goto-char (point-min))
 749     (nnshimbun-insert-header header)
 750     (insert "Content-Type: text/html; charset=ISO-2022-JP\n"
 751             "MIME-Version: 1.0\n")
 752     (when x-face
 753       (insert x-face)
 754       (unless (bolp)
 755         (insert "\n")))
 756     (insert "\n")
 757     (encode-coding-string (buffer-string)
 758                           (mime-charset-to-coding-system "ISO-2022-JP"))))
 759
 760
 761
 762 ;;; www.asahi.com
 763
 764 (defun nnshimbun-asahi-get-headers ()
 765   (when (search-forward "\n<!-- Start of past -->\n" nil t)
 766     (delete-region (point-min) (point))
 767     (when (search-forward "\n<!-- End of past -->\n" nil t)
 768       (forward-line -1)
 769       (delete-region (point) (point-max))
 770       (goto-char (point-min))
 771       (let (headers)
 772         (while (re-search-forward
 773                 "^\e$B"#\e(B<a href=\"\\(\\([0-9][0-9][0-9][0-9]\\)/past/\\([A-z]*[0-9]*\\)\\.html\\)\"> *"
 774                 nil t)
 775           (let ((id (format "<%s%s%%%s>"
 776                             (match-string 2)
 777                             (match-string 3)
 778                             nnshimbun-current-group))
 779                 (url (match-string 1)))
 780             (push (make-full-mail-header
 781                    0
 782                    (nnshimbun-mime-encode-string
 783                     (mapconcat 'identity
 784                                (split-string
 785                                 (buffer-substring
 786                                  (match-end 0)
 787                                  (progn (search-forward "<br>" nil t) (point)))
 788                                 "<[^>]+>")
 789                                ""))
 790                    nnshimbun-from-address
 791                    "" id "" 0 0 (concat nnshimbun-url url))
 792                   headers)))
 793         (setq headers (nreverse headers))
 794         (let ((i 0))
 795           (while (and (nth i headers)
 796                       (re-search-forward
 797                        "^\\[\\([0-9][0-9]\\)/\\([0-9][0-9]\\) \\([0-9][0-9]:[0-9][0-9]\\)\\]"
 798                        nil t))
 799             (let ((month (string-to-number (match-string 1)))
 800                   (date (decode-time (current-time))))
 801               (mail-header-set-date
 802                (nth i headers)
 803                (nnshimbun-make-date-string
 804                 (if (and (eq 12 month) (eq 1 (nth 4 date)))
 805                     (1- (nth 5 date))
 806                   (nth 5 date))
 807                 month
 808                 (string-to-number (match-string 2))
 809                 (match-string 3))))
 810             (setq i (1+ i))))
 811         (nreverse headers)))))
 812
 813
 814
 815 ;;; www.sponichi.co.jp
 816
 817 (defun nnshimbun-sponichi-get-headers ()
 818   (when (search-forward "\e$B%K%e!<%9%$%s%G%C%/%9\e(B" nil t)
 819     (delete-region (point-min) (point))
 820     (when (search-forward "\e$B%"%I%?%0\e(B" nil t)
 821       (forward-line 2)
 822       (delete-region (point) (point-max))
 823       (goto-char (point-min))
 824       (let ((case-fold-search t) headers)
 825         (while (re-search-forward
 826                 "^<a href=\"/\\(\\([A-z]*\\)/kiji/\\([0-9][0-9][0-9][0-9]\\)/\\([0-9][0-9]\\)/\\([0-9][0-9]\\)/\\([0-9][0-9]\\)\\.html\\)\">"
 827                 nil t)
 828           (let ((url (match-string 1))
 829                 (id (format "<%s%s%s%s%%%s>"
 830                             (match-string 3)
 831                             (match-string 4)
 832                             (match-string 5)
 833                             (match-string 6)
 834                             nnshimbun-current-group))
 835                 (date (nnshimbun-make-date-string
 836                        (string-to-number (match-string 3))
 837                        (string-to-number (match-string 4))
 838                        (string-to-number (match-string 5)))))
 839             (push (make-full-mail-header
 840                    0
 841                    (nnshimbun-mime-encode-string
 842                     (mapconcat 'identity
 843                                (split-string
 844                                 (buffer-substring
 845                                  (match-end 0)
 846                                  (progn (search-forward "<br>" nil t) (point)))
 847                                 "<[^>]+>")
 848                                ""))
 849                    nnshimbun-from-address
 850                    date id "" 0 0 (concat nnshimbun-url url))
 851                   headers)))
 852         headers))))
 853
 854
 855
 856 ;;; CNET Japan
 857
 858 (defun nnshimbun-cnet-get-headers ()
 859   (let ((case-fold-search t) headers)
 860     (while (search-forward "\n<!--*****\e$B8+=P$7\e(B*****-->\n" nil t)
 861       (let ((subject (buffer-substring (point) (gnus-point-at-eol)))
 862             (point (point)))
 863         (forward-line -2)
 864         (when (looking-at "<a href=\"/\\(News/\\([0-9][0-9][0-9][0-9]\\)/Item/\\([0-9][0-9]\\([0-9][0-9]\\)\\([0-9][0-9]\\)-[0-9]+\\).html\\)\">")
 865           (let ((url (match-string 1))
 866                 (id  (format "<%s%s%%%s>"
 867                              (match-string 2)
 868                              (match-string 3)
 869                              nnshimbun-current-group))
 870                 (date (nnshimbun-make-date-string
 871                        (string-to-number (match-string 2))
 872                        (string-to-number (match-string 4))
 873                        (string-to-number (match-string 5)))))
 874             (push (make-full-mail-header
 875                    0
 876                    (nnshimbun-mime-encode-string subject)
 877                    nnshimbun-from-address
 878                    date id "" 0 0 (concat nnshimbun-url url))
 879                   headers)))
 880         (goto-char point)))
 881     headers))
 882
 883
 884
 885 ;;; Wired
 886
 887 (defun nnshimbun-wired-get-all-headers ()
 888   (save-excursion
 889     (set-buffer nnshimbun-buffer)
 890     (let ((group-header-alist (mapcar (lambda (g) (cons g nil)) nnshimbun-groups))
 891           (case-fold-search t)
 892           (regexp (format
 893                    "<a href=\"\\(%s\\|/\\)\\(news/news/\\(%s\\)/story/\\(\\([0-9][0-9][0-9][0-9]\\)\\([0-9][0-9]\\)\\([0-9][0-9]\\)[0-9]+\\)\\.html\\)\"><b>"
 894                    (regexp-quote nnshimbun-url)
 895                    (nnshimbun-regexp-opt nnshimbun-groups))))
 896       (dolist (xover (list (concat nnshimbun-url "news/news/index.html")
 897                            (concat nnshimbun-url "news/news/last_seven.html")))
 898         (erase-buffer)
 899         (nnshimbun-retrieve-url xover t)
 900         (goto-char (point-min))
 901         (while (re-search-forward regexp nil t)
 902           (let* ((url   (concat nnshimbun-url (match-string 2)))
 903                  (group (downcase (match-string 3)))
 904                  (id    (format "<%s%%%s>" (match-string 4) group))
 905                  (date  (nnshimbun-make-date-string
 906                          (string-to-number (match-string 5))
 907                          (string-to-number (match-string 6))
 908                          (string-to-number (match-string 7))))
 909                  (header (make-full-mail-header
 910                           0
 911                           (nnshimbun-mime-encode-string
 912                            (mapconcat 'identity
 913                                       (split-string
 914                                        (buffer-substring
 915                                         (match-end 0)
 916                                         (progn (search-forward "</b>" nil t) (point)))
 917                                        "<[^>]+>")
 918                                       ""))
 919                           nnshimbun-from-address
 920                           date id "" 0 0 url))
 921                  (x (assoc group group-header-alist)))
 922             (setcdr x (cons header (cdr x))))))
 923       group-header-alist)))
 924
 925
 926
 927 ;;; www.yomiuri.co.jp
 928
 929 (defun nnshimbun-yomiuri-get-all-headers ()
 930   (save-excursion
 931     (set-buffer nnshimbun-buffer)
 932     (erase-buffer)
 933     (nnshimbun-retrieve-url (eval nnshimbun-index-url) t)
 934     (let ((case-fold-search t)
 935           (group-header-alist (mapcar (lambda (g) (cons g nil)) nnshimbun-groups)))
 936       (dolist (group nnshimbun-groups)
 937         (let (start)
 938           (goto-char (point-min))
 939           (when (and (search-forward (format "\n<!-- /news/%s=start -->\n" group) nil t)
 940                      (setq start (point))
 941                      (search-forward (format "\n<!-- /news/%s=end -->\n" group) nil t))
 942             (forward-line -1)
 943             (save-restriction
 944               (narrow-to-region start (point))
 945               (goto-char start)
 946               (while (re-search-forward
 947                       "<a href=\"/\\([0-9]+\\)/\\(\\(\\([0-9][0-9][0-9][0-9]\\)\\([0-9][0-9]\\)\\([0-9][0-9]\\)[A-z0-9]+\\)\\.htm\\)\"[^>]*>"
 948                       nil t)
 949                 (let ((url   (concat (match-string 1) "a/" (match-string 2)))
 950                       (id    (format "<%s%s%%%s>"
 951                                      (match-string 1)
 952                                      (match-string 3)
 953                                      group))
 954                       (year  (string-to-number (match-string 4)))
 955                       (month (string-to-number (match-string 5)))
 956                       (day   (string-to-number (match-string 6)))
 957                       (subject (mapconcat
 958                                 'identity
 959                                 (split-string
 960                                  (buffer-substring
 961                                   (match-end 0)
 962                                   (progn (search-forward "<br>" nil t) (point)))
 963                                  "<[^>]+>")
 964                                 ""))
 965                       date x)
 966                   (when (string-match "^\e$B"!\e(B" subject)
 967                     (setq subject (substring subject (match-end 0))))
 968                   (if (string-match "(\\([0-9][0-9]:[0-9][0-9]\\))$" subject)
 969                       (setq date (nnshimbun-make-date-string
 970                                   year month day (match-string 1 subject))
 971                             subject (substring subject 0 (match-beginning 0)))
 972                     (setq date (nnshimbun-make-date-string year month day)))
 973                   (setcdr (setq x (assoc group group-header-alist))
 974                           (cons (make-full-mail-header
 975                                  0
 976                                  (nnshimbun-mime-encode-string subject)
 977                                  nnshimbun-from-address
 978                                  date id "" 0 0 (concat nnshimbun-url url))
 979                                 (cdr x)))))))))
 980       group-header-alist)))
 981
 982
 983
 984 ;;; Zdnet Japan
 985
 986 (defun nnshimbun-zdnet-get-headers ()
 987   (let ((case-fold-search t) headers)
 988     (goto-char (point-min))
 989     (let (start)
 990       (while (and (search-forward "<!--" nil t)
 991                   (setq start (- (point) 4))
 992                   (search-forward "-->" nil t))
 993         (delete-region start (point))))
 994     (goto-char (point-min))
 995     (while (re-search-forward
 996             "<a href=\"\\(\\([0-9][0-9]\\)\\([0-9][0-9]\\)/\\([0-9][0-9]\\)/\\([^\\.]+\\).html\\)\"><font size=\"4\"><strong>"
 997             nil t)
 998       (let ((year  (+ 2000 (string-to-number (match-string 2))))
 999             (month (string-to-number (match-string 3)))
1000             (day   (string-to-number (match-string 4)))
1001             (id    (format "<%s%s%s%s%%%s>"
1002                            (match-string 2)
1003                            (match-string 3)
1004                            (match-string 4)
1005                            (match-string 5)
1006                            nnshimbun-current-group))
1007             (url (match-string 1)))
1008         (push (make-full-mail-header
1009                0
1010                (nnshimbun-mime-encode-string
1011                 (mapconcat 'identity
1012                            (split-string
1013                             (buffer-substring
1014                              (match-end 0)
1015                              (progn (search-forward "</a>" nil t) (point)))
1016                             "<[^>]+>")
1017                            ""))
1018                nnshimbun-from-address
1019                (nnshimbun-make-date-string year month day)
1020                id  "" 0 0 (concat nnshimbun-url url))
1021               headers)))
1022     (nreverse headers)))
1023
1024
1025
1026 (provide 'nnshimbun)
1027 ;;; nnshimbun.el ends here.