;;; mm-url.el --- a wrapper of url functions/commands for Gnus
-;; Copyright (C) 2001 Free Software Foundation, Inc.
+
+;; Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
(eval-when-compile (require 'cl))
(require 'mm-util)
+(require 'gnus)
+
+(eval-when-compile
+ (if (featurep 'xemacs)
+ (require 'timer-funcs)
+ (require 'timer)))
-(eval-and-compile
- (autoload 'executable-find "executable")
- (autoload 'url-insert-file-contents "url-handlers"))
+(defvar url-current-object)
+(defvar url-package-name)
+(defvar url-package-version)
(defgroup mm-url nil
"A wrapper of url package and external url command for Gnus."
(defcustom mm-url-use-external (not
(condition-case nil
- (require 'url-handlers)
+ (require 'url)
(error nil)))
- "*If not-nil, use external grab program `mm-url-program'."
+ "*If non-nil, use external grab program `mm-url-program'."
+ :version "22.1"
:type 'boolean
:group 'mm-url)
(defvar mm-url-predefined-programs
- '((wget "wget" "-q" "-O" "-")
+ '((wget "wget" "--user-agent=mm-url" "-q" "-O" "-")
+ (w3m "w3m" "-dump_source")
(lynx "lynx" "-source")
- (curl "curl")))
+ (curl "curl" "--silent" "--user-agent mm-url" "--location")))
-(defcustom mm-url-program
+(defcustom mm-url-program
(cond
((executable-find "wget") 'wget)
+ ((executable-find "w3m") 'w3m)
((executable-find "lynx") 'lynx)
((executable-find "curl") 'curl)
(t "GET"))
- "The url grab program."
- :type '(choice
+ "The url grab program.
+Likely values are `wget', `w3m', `lynx' and `curl'."
+ :version "22.1"
+ :type '(choice
(symbol :tag "wget" wget)
+ (symbol :tag "w3m" w3m)
(symbol :tag "lynx" lynx)
(symbol :tag "curl" curl)
(string :tag "other"))
(defcustom mm-url-arguments nil
"The arguments for `mm-url-program'."
+ :version "22.1"
:type '(repeat string)
:group 'mm-url)
+\f
+;;; Internal variables
+
+(defvar mm-url-package-name
+ (gnus-replace-in-string
+ (gnus-replace-in-string gnus-version " v.*$" "")
+ " " "-"))
+
+(defvar mm-url-package-version gnus-version-number)
+
;; Stolen from w3.
(defvar mm-url-html-entities
'(
"A list of characters that are _NOT_ reserved in the URL spec.
This is taken from RFC 2396.")
+(defun mm-url-load-url ()
+ "Load `url-insert-file-contents'."
+ (unless (condition-case ()
+ (require 'url-handlers)
+ (error nil))
+ ;; w3-4.0pre0.46 or earlier version.
+ (require 'w3-vars)
+ (require 'url)))
+
+;;;###autoload
(defun mm-url-insert-file-contents (url)
+ "Insert file contents of URL.
+If `mm-url-use-external' is non-nil, use `mm-url-program'."
(if mm-url-use-external
- (if (string-match "^file:/+" url)
- (insert-file-contents (substring url (1- (match-end 0))))
- (mm-url-insert-file-contents-external url))
- (require 'url-handlers)
- (let ((name buffer-file-name))
- (prog1
- (url-insert-file-contents url)
- (setq buffer-file-name name)))))
-
+ (progn
+ (if (string-match "^file:/+" url)
+ (insert-file-contents (substring url (1- (match-end 0))))
+ (mm-url-insert-file-contents-external url))
+ (goto-char (point-min))
+ (if (fboundp 'url-generic-parse-url)
+ (setq url-current-object
+ (url-generic-parse-url url)))
+ (list url (buffer-size)))
+ (mm-url-load-url)
+ (let ((name buffer-file-name)
+ (url-request-extra-headers (list (cons "Connection" "Close")))
+ (url-package-name (or mm-url-package-name
+ url-package-name))
+ (url-package-version (or mm-url-package-version
+ url-package-version))
+ result)
+ (setq result (url-insert-file-contents url))
+ (save-excursion
+ (goto-char (point-min))
+ (while (re-search-forward "\r 1000\r ?" nil t)
+ (replace-match "")))
+ (setq buffer-file-name name)
+ (if (and (fboundp 'url-generic-parse-url)
+ (listp result))
+ (setq url-current-object (url-generic-parse-url
+ (car result))))
+ result)))
+
+;;;###autoload
(defun mm-url-insert-file-contents-external (url)
+ "Insert file contents of URL using `mm-url-program'."
(let (program args)
(if (symbolp mm-url-program)
(let ((item (cdr (assq mm-url-program mm-url-predefined-programs))))
args (append (cdr item) (list url))))
(setq program mm-url-program
args (append mm-url-arguments (list url))))
- (apply 'call-process program nil t nil args)))
+ (unless (eq 0 (apply 'call-process program nil t nil args))
+ (error "Couldn't fetch %s" url))))
+
+(defvar mm-url-timeout 30
+ "The number of seconds before timing out an URL fetch.")
+
+(defvar mm-url-retries 10
+ "The number of retries after timing out when fetching an URL.")
(defun mm-url-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."
- (if follow-refresh
- (save-restriction
- (narrow-to-region (point) (point))
- (mm-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))
- (mm-url-insert url t))))
- (mm-url-insert-file-contents url)))
+ (let ((times mm-url-retries)
+ (done nil)
+ (first t)
+ result)
+ (while (and (not (zerop (decf times)))
+ (not done))
+ (with-timeout (mm-url-timeout)
+ (unless first
+ (message "Trying again (%s)..." (- mm-url-retries times)))
+ (setq first nil)
+ (if follow-refresh
+ (save-restriction
+ (narrow-to-region (point) (point))
+ (mm-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))
+ (setq result (mm-url-insert url t)))))
+ (setq result (mm-url-insert-file-contents url)))
+ (setq done t)))
+ result))
(defun mm-url-decode-entities ()
"Decode all HTML entities."
(goto-char (point-min))
- (while (re-search-forward "&\\(#[0-9]+\\|[a-z]+\\);" nil t)
+ (while (re-search-forward "&\\(#[0-9]+\\|[a-z]+[0-9]*\\);" nil t)
(let ((elem (if (eq (aref (match-string 1) 0) ?\#)
(let ((c
(string-to-number (substring
(with-temp-buffer
(insert string)
(mm-url-decode-entities)
- (buffer-substring (point-min) (point-max))))
+ (buffer-string)))
(defun mm-url-form-encode-xwfu (chunk)
"Escape characters in a string for application/x-www-form-urlencoded.
(defun mm-url-fetch-form (url pairs)
"Fetch a form from URL with PAIRS as the data using the POST method."
- (require 'url-handlers)
+ (mm-url-load-url)
(let ((url-request-data (mm-url-encode-www-form-urlencoded pairs))
(url-request-method "POST")
(url-request-extra-headers
t)
(defun mm-url-fetch-simple (url content)
- (require 'url-handlers)
+ (mm-url-load-url)
(let ((url-request-data content)
(url-request-method "POST")
(url-request-extra-headers
(provide 'mm-url)
+;;; arch-tag: 0594f9b3-417c-48b0-adc2-5082e1e7917f
;;; mm-url.el ends here
projects / gnus / blobdiff