;;; nnweb.el --- retrieving articles via web search engines
-;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001
+;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
;; Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;;; Commentary:
-;; Note: You need to have `url' and `w3' installed for this
-;; backend to work.
+;; Note: You need to have `w3' installed for some functions to work.
;;; Code:
(require 'gnus)
(require 'nnmail)
(require 'mm-util)
-(eval-when-compile
+(require 'mm-url)
+(eval-and-compile
(ignore-errors
- (require 'w3)
- (require 'url)
- (require 'w3-forms)))
-
-;; Report failure to find w3 at load time if appropriate.
-(unless noninteractive
- (eval '(progn
- (require 'w3)
- (require 'url)
- (require 'w3-forms))))
+ (require 'url)))
+(autoload 'w3-parse-buffer "w3-parse")
(nnoo-declare nnweb)
(defvoo nnweb-directory (nnheader-concat gnus-directory "nnweb/")
"Where nnweb will save its files.")
-(defvoo nnweb-type 'dejanews
+(defvoo nnweb-type 'google
"What search engine type is being used.
-Valid types include `dejanews', `dejanewsold', `reference',
+Valid types include `google', `dejanews', `dejanewsold', `reference',
and `altavista'.")
(defvar nnweb-type-definition
- '(
- (dejanews ;; bought by google.com
+ '((google
+ (article . ignore)
+ (id . "http://groups.google.com/groups?selm=%s&output=gplain")
+ (reference . identity)
+ (map . nnweb-google-create-mapping)
+ (search . nnweb-google-search)
+ (address . "http://groups.google.com/groups")
+ (identifier . nnweb-google-identity))
+ (dejanews ;; alias of google
;;(article . nnweb-google-wash-article)
;;(id . "http://groups.google.com/groups?as_umsgid=%s")
(article . ignore)
(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)
(deffoo nnweb-request-scan (&optional group server)
(nnweb-possibly-change-server group server)
+ (if nnweb-ephemeral-p
+ (setq nnweb-hashtb (gnus-make-hashtable 4095)))
(funcall (nnweb-definition 'map))
(unless nnweb-ephemeral-p
(nnweb-write-active)
(url (and header (mail-header-xref header))))
(when (or (and url
(mm-with-unibyte-current-buffer
- (nnweb-fetch-url url)))
+ (mm-url-insert url)))
(and (stringp article)
(nnweb-definition 'id t)
(let ((fetch (nnweb-definition 'id))
(when (and fetch art)
(setq url (format fetch art))
(mm-with-unibyte-current-buffer
- (nnweb-fetch-url url))
+ (mm-url-insert url))
(if (nnweb-definition 'reference t)
(setq article
(funcall (nnweb-definition
(nnweb-open-server server)))
(unless nnweb-group-alist
(nnweb-read-active))
+ (unless nnweb-hashtb
+ (setq nnweb-hashtb (gnus-make-hashtable 4095)))
(when group
(when (and (not nnweb-ephemeral-p)
- (not (equal group nnweb-group)))
- (setq nnweb-hashtb (gnus-make-hashtable 4095))
+ (equal group nnweb-group))
(nnweb-request-group group nil t))))
(defun nnweb-init (server)
nnweb-type nnweb-search server))
(current-buffer))))))
-(defun nnweb-fetch-url (url)
- (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)
- (default-process-coding-system 'binary))
- (nnweb-insert url))
- (setq buf (buffer-string)))
- (erase-buffer)
- (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)
- (save-excursion
- (set-buffer url-working-buffer)
- (funcall (nnweb-definition 'article))
- (nnweb-decode-entities)
- (set-buffer buffer)
- (goto-char (point-max))
- (insert-buffer-substring url-working-buffer))
- (funcall callback t)
- (gnus-kill-buffer url-working-buffer)))
-
-(defun nnweb-url-retrieve-asynch (url callback &rest data)
- (let ((url-request-method "GET")
- (old-asynch url-be-asynchronous)
- (url-request-data nil)
- (url-request-extra-headers nil)
- (url-working-buffer (generate-new-buffer-name " *nnweb*")))
- (setq-default url-be-asynchronous t)
- (save-excursion
- (set-buffer (get-buffer-create url-working-buffer))
- (setq url-current-callback-data data
- url-be-asynchronous t
- url-current-callback-func callback)
- (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)))
+;; (defun nnweb-fetch-url (url)
+;; (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)
+;; (default-process-coding-system 'binary))
+;; (nnweb-insert url))
+;; (setq buf (buffer-string)))
+;; (erase-buffer)
+;; (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)
+;; (save-excursion
+;; (set-buffer url-working-buffer)
+;; (funcall (nnweb-definition 'article))
+;; (nnweb-decode-entities)
+;; (set-buffer buffer)
+;; (goto-char (point-max))
+;; (insert-buffer-substring url-working-buffer))
+;; (funcall callback t)
+;; (gnus-kill-buffer url-working-buffer)))
+
+;; (defun nnweb-url-retrieve-asynch (url callback &rest data)
+;; (let ((url-request-method "GET")
+;; (old-asynch url-be-asynchronous)
+;; (url-request-data nil)
+;; (url-request-extra-headers nil)
+;; (url-working-buffer (generate-new-buffer-name " *nnweb*")))
+;; (setq-default url-be-asynchronous t)
+;; (save-excursion
+;; (set-buffer (get-buffer-create url-working-buffer))
+;; (setq url-current-callback-data data
+;; url-be-asynchronous t
+;; url-current-callback-func callback)
+;; (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.
;; Yup -- fetch it.
(setq more (match-string 1))
(erase-buffer)
- (url-insert-file-contents more)))
+ (mm-url-insert more)))
;; Return the articles in the right order.
(setq nnweb-articles
(sort (nconc nnweb-articles map) 'car-less-than-car))))))
(defun nnweb-dejanews-search (search)
- (nnweb-insert
+ (mm-url-insert
(concat
(nnweb-definition 'address)
"?"
- (nnweb-encode-www-form-urlencoded
+ (mm-url-encode-www-form-urlencoded
`(("ST" . "PS")
("svcclass" . "dnyr")
("QRY" . ,search)
("ageweight" . "1")))))
t)
-(defun nnweb-dejanewsold-search (search)
- (nnweb-fetch-form
- (nnweb-definition 'address)
- `(("query" . ,search)
- ("defaultOp" . "AND")
- ("svcclass" . "dnold")
- ("maxhits" . "100")
- ("format" . "verbose2")
- ("threaded" . "0")
- ("showsort" . "date")
- ("agesign" . "1")
- ("ageweight" . "1")))
- t)
+;; (defun nnweb-dejanewsold-search (search)
+;; (nnweb-fetch-form
+;; (nnweb-definition 'address)
+;; `(("query" . ,search)
+;; ("defaultOp" . "AND")
+;; ("svcclass" . "dnold")
+;; ("maxhits" . "100")
+;; ("format" . "verbose2")
+;; ("threaded" . "0")
+;; ("showsort" . "date")
+;; ("agesign" . "1")
+;; ("ageweight" . "1")))
+;; t)
(defun nnweb-dejanews-identity (url)
"Return an unique identifier based on URL."
(goto-char (point-min))
(when (looking-at ".*href=\"\\([^\"]+\\)\"")
(setq url (match-string 1)))
- (nnweb-remove-markup)
+ (mm-url-remove-markup)
(goto-char (point-min))
(while (search-forward "\t" nil t)
(replace-match " "))
(let ((body (point-marker)))
(search-forward "</pre>" nil t)
(delete-region (point) (point-max))
- (nnweb-remove-markup)
+ (mm-url-remove-markup)
(goto-char (point-min))
(while (looking-at " *$")
(gnus-delete-line))
(while (search-forward "," nil t)
(replace-match " " t t)))
(widen)
- (nnweb-decode-entities)
+ (mm-url-decode-entities)
(set-marker body nil))))
(defun nnweb-reference-search (search)
- (url-insert-file-contents
+ (mm-url-insert
(concat
(nnweb-definition 'address)
"?"
- (nnweb-encode-www-form-urlencoded
+ (mm-url-encode-www-form-urlencoded
`(("search" . "advanced")
("querytext" . ,search)
("subj" . "")
(goto-char (point-min))
(while (search-forward "<dt>" nil t)
(replace-match "\n<blubb>"))
- (nnweb-decode-entities)
+ (mm-url-decode-entities)
(goto-char (point-min))
(while (re-search-forward "<blubb>.*href=\"\\([^\"]+\\)\"><strong>\\([^>]*\\)</strong></a><dd>\\([^-]+\\)- <b>\\([^<]+\\)<.*href=\"news:\\([^\"]+\\)\">.*\">\\(.+\\)</a><P>"
nil t)
(while (re-search-forward "<A.*\\?id@\\([^\"]+\\)\">[0-9]+</A>" nil t)
(replace-match "<\\1> " t)))
(widen)
- (nnweb-remove-markup)
- (nnweb-decode-entities)))
+ (mm-url-remove-markup)
+ (mm-url-decode-entities)))
(defun nnweb-altavista-search (search &optional part)
- (url-insert-file-contents
+ (mm-url-insert
(concat
(nnweb-definition 'address)
"?"
- (nnweb-encode-www-form-urlencoded
+ (mm-url-encode-www-form-urlencoded
`(("pg" . "aq")
("what" . "news")
,@(when part `(("stq" . ,(int-to-string (* part 30)))))
(goto-char (point-min))
(while (search-forward "<br>" nil t)
(replace-match "\n"))
- (nnweb-remove-markup)
+ (mm-url-remove-markup)
(goto-char (point-min))
(while (re-search-forward "^[ \t]*\n" nil t)
(replace-match ""))
(narrow-to-region (point) (point-max))
(search-forward "</pre>" nil t)
(delete-region (point) (point-max))
- (nnweb-remove-markup)
+ (mm-url-remove-markup)
(widen)))
(defun nnweb-google-parse-1 (&optional Message-ID)
(while (re-search-forward
"a href=/groups\\(\\?[^ \">]*selm=\\([^ &\">]+\\)\\)" nil t)
(setq mid (match-string 2)
- url (format
+ 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)
+ (mm-url-remove-markup)
+ (mm-url-decode-entities)
(setq Subject (buffer-string))
(goto-char (point-max))
(widen)
- (forward-line 2)
+ (forward-line 1)
(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)
+ (mm-url-remove-markup)
+ (mm-url-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)))
+ "\\([0-9]+\\)[/ ]\\([A-Za-z]+\\)[/ ]\\([0-9]+\\)[ \t]*by[ \t]*\\([^<]*\\) - <a")
+ (setq From (match-string 4)
+ Date (format "%s %s 00:00:00 %s"
+ (match-string 2) (match-string 1)
+ (match-string 3))))
(forward-line 1)
(incf i)
(unless (nnweb-get-hashtb url)
(nconc nnweb-articles map))
(when (setq header (cadar map))
(mm-with-unibyte-current-buffer
- (nnweb-fetch-url (mail-header-xref header)))
+ (mm-url-insert (mail-header-xref header)))
(caar map))))
(defun nnweb-google-create-mapping ()
(sort nnweb-articles 'car-less-than-car))))))
(defun nnweb-google-search (search)
- (nnweb-insert
+ (mm-url-insert
(concat
(nnweb-definition 'address)
"?"
- (nnweb-encode-www-form-urlencoded
+ (mm-url-encode-www-form-urlencoded
`(("q" . ,search)
("num". "100")
("hq" . "")
(mapcar 'nnweb-insert-html (nth 2 parse))
(insert "</" (symbol-name (car parse)) ">\n")))
-(defun nnweb-encode-www-form-urlencoded (pairs)
- "Return PAIRS encoded for forms."
- (mapconcat
- (function
- (lambda (data)
- (concat (w3-form-encode-xwfu (car data)) "="
- (w3-form-encode-xwfu (cdr data)))))
- pairs "&"))
-
-(defun nnweb-fetch-form (url pairs)
- "Fetch a form from URL with PAIRS as the data using the POST method."
- (let ((url-request-data (nnweb-encode-www-form-urlencoded pairs))
- (url-request-method "POST")
- (url-request-extra-headers
- '(("Content-type" . "application/x-www-form-urlencoded"))))
- (url-insert-file-contents url)
- (setq buffer-file-name nil))
- t)
-
-(defun nnweb-decode-entities ()
- "Decode all HTML entities."
- (goto-char (point-min))
- (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."
- (goto-char (point-min))
- (while (search-forward "<!--" nil t)
- (delete-region (match-beginning 0)
- (or (search-forward "-->" nil t)
- (point-max))))
- (goto-char (point-min))
- (while (re-search-forward "<[^>]+>" nil t)
- (replace-match "" t t)))
-
-(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))
- (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)
"Find the element of TYPE in PARSE."
(catch 'found
(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 / gnus / blobdiff