;;; nnweb.el --- retrieving articles via web search engines
-;; Copyright (C) 1996,97,98,99 Free Software Foundation, Inc.
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
+;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;;; Code:
(eval-when-compile (require 'cl))
+(eval-when-compile (require 'gnus-clfns))
(require 'nnoo)
(require 'message)
(require 'gnus-util)
(require 'gnus)
(require 'nnmail)
-(require 'mm-util)
(eval-when-compile
(ignore-errors
(require 'w3)
(require 'url)
(require 'w3-forms)))
+
;; Report failure to find w3 at load time if appropriate.
-(eval '(progn
- (require 'w3)
- (require 'url)
- (require 'w3-forms)))
+(unless noninteractive
+ (eval '(progn
+ (require 'w3)
+ (require 'url)
+ (require 'w3-forms))))
(nnoo-declare nnweb)
and `altavista'.")
(defvar nnweb-type-definition
- '((dejanews
- (article . ignore)
- (id . "http://search.dejanews.com/msgid.xp?MID=%s&fmt=text")
- (map . nnweb-dejanews-create-mapping)
- (search . nnweb-dejanews-search)
- (address . "http://www.deja.com/=dnc/qs.xp")
- (identifier . nnweb-dejanews-identity))
- (dejanewsold
+ '(
+ (dejanews ;; bought by google.com
+ ;;(article . nnweb-google-wash-article)
+ ;;(id . "http://groups.google.com/groups?as_umsgid=%s")
(article . ignore)
- (map . nnweb-dejanews-create-mapping)
- (search . nnweb-dejanewsold-search)
- (address . "http://www.deja.com/dnquery.xp")
- (identifier . nnweb-dejanews-identity))
+ (id . "http://groups.google.com/groups?selm=%s&output=gplain")
+ ;;(reference . nnweb-google-reference)
+ (reference . identity)
+ (map . nnweb-google-create-mapping)
+ (search . nnweb-google-search)
+ (address . "http://groups.google.com/groups")
+ (identifier . nnweb-google-identity))
+;;; (dejanews
+;;; (article . ignore)
+;;; (id . "http://search.dejanews.com/msgid.xp?MID=%s&fmt=text")
+;;; (map . nnweb-dejanews-create-mapping)
+;;; (search . nnweb-dejanews-search)
+;;; (address . "http://www.deja.com/=dnc/qs.xp")
+;;; (identifier . nnweb-dejanews-identity))
+;;; (dejanewsold
+;;; (article . ignore)
+;;; (map . nnweb-dejanews-create-mapping)
+;;; (search . nnweb-dejanewsold-search)
+;;; (address . "http://www.deja.com/dnquery.xp")
+;;; (identifier . nnweb-dejanews-identity))
(reference
(article . nnweb-reference-wash-article)
(map . nnweb-reference-create-mapping)
(set-buffer nntp-server-buffer)
(erase-buffer)
(let (article header)
- (while (setq article (pop articles))
- (when (setq header (cadr (assq article nnweb-articles)))
- (nnheader-insert-nov header)))
+ (mm-with-unibyte-current-buffer
+ (while (setq article (pop articles))
+ (when (setq header (cadr (assq article nnweb-articles)))
+ (nnheader-insert-nov header))))
'nov)))
(deffoo nnweb-request-scan (&optional group server)
(nnweb-possibly-change-server group server)
- (setq nnweb-hashtb (gnus-make-hashtable 4095))
(funcall (nnweb-definition 'map))
(unless nnweb-ephemeral-p
(nnweb-write-active)
(when (and group
(not (equal group nnweb-group))
(not nnweb-ephemeral-p))
+ (setq nnweb-group group
+ nnweb-articles nil)
(let ((info (assoc group nnweb-group-alist)))
(when info
- (setq nnweb-group group)
(setq nnweb-type (nth 2 info))
(setq nnweb-search (nth 3 info))
(unless dont-check
(nnweb-read-overview group)))))
- (unless dont-check
- (nnweb-request-scan group))
(cond
((not nnweb-articles)
(nnheader-report 'nnweb "No matching articles"))
(let* ((header (cadr (assq article nnweb-articles)))
(url (and header (mail-header-xref header))))
(when (or (and url
- (nnweb-fetch-url url))
+ (mm-with-unibyte-current-buffer
+ (nnweb-fetch-url url)))
(and (stringp article)
(nnweb-definition 'id t)
(let ((fetch (nnweb-definition 'id))
- art)
+ art active)
(when (string-match "^<\\(.*\\)>$" article)
(setq art (match-string 1 article)))
- (and fetch
- art
- (nnweb-fetch-url
- (format fetch article))))))
+ (when (and fetch art)
+ (setq url (format fetch art))
+ (mm-with-unibyte-current-buffer
+ (nnweb-fetch-url url))
+ (if (nnweb-definition 'reference t)
+ (setq article
+ (funcall (nnweb-definition
+ 'reference) article)))))))
(unless nnheader-callback-function
- (funcall (nnweb-definition 'article))
- (nnweb-decode-entities))
+ (funcall (nnweb-definition 'article)))
(nnheader-report 'nnweb "Fetched article %s" article)
- t))))
+ (cons group (and (numberp article) article))))))
(deffoo nnweb-close-server (&optional server)
(when (and (nnweb-server-opened server)
t))
(deffoo nnweb-request-update-info (group info &optional server)
- (nnweb-possibly-change-server group server)
- ;;(setcar (cddr info) nil)
- )
+ (nnweb-possibly-change-server group server))
(deffoo nnweb-asynchronous-p ()
t)
(defun nnweb-read-overview (group)
"Read the overview of GROUP and build the map."
(when (file-exists-p (nnweb-overview-file group))
- (with-temp-buffer
+ (mm-with-unibyte-buffer
(nnheader-insert-file-contents (nnweb-overview-file group))
(goto-char (point-min))
(let (header)
(when group
(when (and (not nnweb-ephemeral-p)
(not (equal group nnweb-group)))
+ (setq nnweb-hashtb (gnus-make-hashtable 4095))
(nnweb-request-group group nil t))))
(defun nnweb-init (server)
(unless (gnus-buffer-live-p nnweb-buffer)
(setq nnweb-buffer
(save-excursion
- (nnheader-set-temp-buffer
- (format " *nnweb %s %s %s*" nnweb-type nnweb-search server))))))
+ (mm-with-unibyte
+ (nnheader-set-temp-buffer
+ (format " *nnweb %s %s %s*"
+ nnweb-type nnweb-search server))
+ (current-buffer))))))
(defun nnweb-fetch-url (url)
- (save-excursion
- (if (not nnheader-callback-function)
- (let ((buf (current-buffer)))
- (save-excursion
- (set-buffer nnweb-buffer)
+ (let (buf)
+ (save-excursion
+ (if (not nnheader-callback-function)
+ (progn
+ (with-temp-buffer
+ (mm-enable-multibyte)
+ (let ((coding-system-for-read 'binary)
+ (coding-system-for-write 'binary)
+ (input-coding-system 'binary)
+ (output-coding-system 'binary)
+ (default-process-coding-system 'binary))
+ (nnweb-insert url))
+ (setq buf (buffer-string)))
(erase-buffer)
- (url-insert-file-contents url)
- (copy-to-buffer buf (point-min) (point-max))
- t))
- (nnweb-url-retrieve-asynch
- url 'nnweb-callback (current-buffer) nnheader-callback-function)
- t)))
+ (insert buf)
+ t)
+ (nnweb-url-retrieve-asynch
+ url 'nnweb-callback (current-buffer) nnheader-callback-function)
+ t))))
(defun nnweb-callback (buffer callback)
(when (gnus-buffer-live-p url-working-buffer)
(setq url-current-callback-data data
url-be-asynchronous t
url-current-callback-func callback)
- (url-retrieve url))
+ (url-retrieve url nil))
(setq-default url-be-asynchronous old-asynch)))
+(if (fboundp 'url-retrieve-synchronously)
+ (defun nnweb-url-retrieve-asynch (url callback &rest data)
+ (url-retrieve url callback data)))
+
;;;
;;; DejaNews functions.
;;;
(dolist (row (nth 2 (car (nth 2 table))))
(setq a (nnweb-parse-find 'a row)
url (cdr (assq 'href (nth 1 a)))
- text (nnweb-text row))
+ text (nreverse (nnweb-text row)))
(when a
- (setq subject (nth 2 text)
- group (nth 4 text)
- date (nth 5 text)
- from (nth 6 text))
- (string-match "\\([0-9]+\\)/\\([0-9]+\\)/\\([0-9]+\\)" date)
- (setq date (format "%s %s %s"
- (car (rassq (string-to-number
- (match-string 2 date))
- parse-time-months))
- (match-string 3 date) (match-string 1 date)))
+ (setq subject (nth 4 text)
+ group (nth 2 text)
+ date (nth 1 text)
+ from (nth 0 text))
+ (if (string-match "\\([0-9]+\\)/\\([0-9]+\\)/\\([0-9]+\\)" date)
+ (setq date (format "%s %s 00:00:00 %s"
+ (car (rassq (string-to-number
+ (match-string 2 date))
+ parse-time-months))
+ (match-string 3 date)
+ (match-string 1 date)))
+ (setq date "Jan 1 00:00:00 0000"))
(incf i)
(setq url (concat url "&fmt=text"))
+ (when (string-match "&context=[^&]+" url)
+ (setq url (replace-match "" t t url)))
(unless (nnweb-get-hashtb url)
(push
(list
(goto-char (point-min))
(search-forward "</pre><hr>" nil t)
(delete-region (point-min) (point))
- ;(nnweb-decode-entities)
(goto-char (point-min))
(while (re-search-forward "^ +[0-9]+\\." nil t)
(narrow-to-region
(while (search-forward "," nil t)
(replace-match " " t t)))
(widen)
+ (nnweb-decode-entities)
(set-marker body nil))))
(defun nnweb-reference-search (search)
(while (re-search-forward "<A.*\\?id@\\([^\"]+\\)\">[0-9]+</A>" nil t)
(replace-match "<\\1> " t)))
(widen)
- (nnweb-remove-markup)))
+ (nnweb-remove-markup)
+ (nnweb-decode-entities)))
(defun nnweb-altavista-search (search &optional part)
(url-insert-file-contents
t)
;;;
+;;; Deja bought by google.com
+;;;
+
+(defun nnweb-google-wash-article ()
+ (let ((case-fold-search t) url)
+ (goto-char (point-min))
+ (re-search-forward "^<pre>" nil t)
+ (narrow-to-region (point-min) (point))
+ (search-backward "<table " nil t 2)
+ (delete-region (point-min) (point))
+ (if (re-search-forward "Search Result [0-9]+" nil t)
+ (replace-match ""))
+ (if (re-search-forward "View complete thread ([0-9]+ articles?)" nil t)
+ (replace-match ""))
+ (goto-char (point-min))
+ (while (search-forward "<br>" nil t)
+ (replace-match "\n"))
+ (nnweb-remove-markup)
+ (goto-char (point-min))
+ (while (re-search-forward "^[ \t]*\n" nil t)
+ (replace-match ""))
+ (goto-char (point-max))
+ (insert "\n")
+ (widen)
+ (narrow-to-region (point) (point-max))
+ (search-forward "</pre>" nil t)
+ (delete-region (point) (point-max))
+ (nnweb-remove-markup)
+ (widen)))
+
+(defun nnweb-google-parse-1 (&optional Message-ID)
+ (let ((i 0)
+ (case-fold-search t)
+ (active (cadr (assoc nnweb-group nnweb-group-alist)))
+ Subject Score Date Newsgroups From
+ map url mid)
+ (unless active
+ (push (list nnweb-group (setq active (cons 1 0))
+ nnweb-type nnweb-search)
+ nnweb-group-alist))
+ ;; Go through all the article hits on this page.
+ (goto-char (point-min))
+ (while (re-search-forward
+ "a href=/groups\\(\\?[^ \">]*selm=\\([^ &\">]+\\)\\)" nil t)
+ (setq mid (match-string 2)
+ url (format
+ "http://groups.google.com/groups?selm=%s&output=gplain" mid))
+ (narrow-to-region (search-forward ">" nil t)
+ (search-forward "</a>" nil t))
+ (nnweb-remove-markup)
+ (nnweb-decode-entities)
+ (setq Subject (buffer-string))
+ (goto-char (point-max))
+ (widen)
+ (forward-line 2)
+ (when (looking-at "<br><font[^>]+>")
+ (goto-char (match-end 0)))
+ (if (not (looking-at "<a[^>]+>"))
+ (skip-chars-forward " \t")
+ (narrow-to-region (point)
+ (search-forward "</a>" nil t))
+ (nnweb-remove-markup)
+ (nnweb-decode-entities)
+ (setq Newsgroups (buffer-string))
+ (goto-char (point-max))
+ (widen)
+ (skip-chars-forward "- \t"))
+ (when (looking-at
+ "\\([0-9]+[/ ][A-Za-z]+[/ ][0-9]+\\)[ \t]*by[ \t]*\\([^<]*\\) - <a")
+ (setq From (match-string 2)
+ Date (match-string 1)))
+ (forward-line 1)
+ (incf i)
+ (unless (nnweb-get-hashtb url)
+ (push
+ (list
+ (incf (cdr active))
+ (make-full-mail-header
+ (cdr active) (if Newsgroups
+ (concat "(" Newsgroups ") " Subject)
+ Subject)
+ From Date (or Message-ID mid)
+ nil 0 0 url))
+ map)
+ (nnweb-set-hashtb (cadar map) (car map))))
+ map))
+
+(defun nnweb-google-reference (id)
+ (let ((map (nnweb-google-parse-1 id)) header)
+ (setq nnweb-articles
+ (nconc nnweb-articles map))
+ (when (setq header (cadar map))
+ (mm-with-unibyte-current-buffer
+ (nnweb-fetch-url (mail-header-xref header)))
+ (caar map))))
+
+(defun nnweb-google-create-mapping ()
+ "Perform the search and create an number-to-url alist."
+ (save-excursion
+ (set-buffer nnweb-buffer)
+ (erase-buffer)
+ (when (funcall (nnweb-definition 'search) nnweb-search)
+ (let ((more t))
+ (while more
+ (setq nnweb-articles
+ (nconc nnweb-articles (nnweb-google-parse-1)))
+ ;; FIXME: There is more.
+ (setq more nil))
+ ;; Return the articles in the right order.
+ (setq nnweb-articles
+ (sort nnweb-articles 'car-less-than-car))))))
+
+(defun nnweb-google-search (search)
+ (nnweb-insert
+ (concat
+ (nnweb-definition 'address)
+ "?"
+ (nnweb-encode-www-form-urlencoded
+ `(("q" . ,search)
+ ("num". "100")
+ ("hq" . "")
+ ("hl" . "")
+ ("lr" . "")
+ ("safe" . "off")
+ ("sites" . "groups")))))
+ t)
+
+(defun nnweb-google-identity (url)
+ "Return an unique identifier based on URL."
+ (if (string-match "selm=\\([^ &>]+\\)" url)
+ (match-string 1 url)
+ url))
+
+;;;
;;; General web/w3 interface utility functions
;;;
(defun nnweb-insert-html (parse)
"Insert HTML based on a w3 parse tree."
(if (stringp parse)
- (insert parse)
+ (insert (nnheader-string-as-multibyte parse))
(insert "<" (symbol-name (car parse)) " ")
(insert (mapconcat
(lambda (param)
(defun nnweb-decode-entities ()
"Decode all HTML entities."
(goto-char (point-min))
- (while (re-search-forward "&\\([a-z]+\\);" nil t)
- (replace-match (char-to-string (or (cdr (assq (intern (match-string 1))
- w3-html-entities))
- ?#))
- t t)))
+ (while (re-search-forward "&\\(#[0-9]+\\|[a-z]+\\);" nil t)
+ (let ((elem (if (eq (aref (match-string 1) 0) ?\#)
+ (let ((c
+ (string-to-number (substring
+ (match-string 1) 1))))
+ (if (mm-char-or-char-int-p c) c 32))
+ (or (cdr (assq (intern (match-string 1))
+ w3-html-entities))
+ ?#))))
+ (unless (stringp elem)
+ (setq elem (char-to-string elem)))
+ (replace-match elem t t))))
+
+(defun nnweb-decode-entities-string (string)
+ (with-temp-buffer
+ (insert string)
+ (nnweb-decode-entities)
+ (buffer-substring (point-min) (point-max))))
(defun nnweb-remove-markup ()
"Remove all HTML markup, leaving just plain text."
(while (re-search-forward "<[^>]+>" nil t)
(replace-match "" t t)))
-(defun nnweb-insert (url)
- "Insert the contents from an URL in the current buffer."
+(defun nnweb-insert (url &optional follow-refresh)
+ "Insert the contents from an URL in the current buffer.
+If FOLLOW-REFRESH is non-nil, redirect refresh url in META."
(let ((name buffer-file-name))
- (url-insert-file-contents url)
+ (if follow-refresh
+ (save-restriction
+ (narrow-to-region (point) (point))
+ (url-insert-file-contents url)
+ (goto-char (point-min))
+ (when (re-search-forward
+ "<meta[ \t\r\n]*http-equiv=\"Refresh\"[^>]*URL=\\([^\"]+\\)\"" nil t)
+ (let ((url (match-string 1)))
+ (delete-region (point-min) (point-max))
+ (nnweb-insert url t))))
+ (url-insert-file-contents url))
(setq buffer-file-name name)))
(defun nnweb-parse-find (type parse &optional maxdepth)
(listp (cdr element)))
(nnweb-text-1 element)))))
+(defun nnweb-replace-in-string (string match newtext)
+ (while (string-match match string)
+ (setq string (replace-match newtext t t string)))
+ string)
+
(provide 'nnweb)
;;; nnweb.el ends here
projects / elisp / gnus.git- / blobdiff