X-Git-Url: http://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fmm-url.el;h=5fb925e052f00add6a3048adbaeacaf5bf13aefc;hb=ef32609763d5fad13257dc11378c54a469b1b8d6;hp=f76b8dbbc0a5cb785dc8f72976af87da93e52310;hpb=21e1f6f3641de55ae4c6ea06e8a8b0f737576aad;p=gnus

diff --git a/lisp/mm-url.el b/lisp/mm-url.el
index f76b8dbbc..5fb925e05 100644
--- a/lisp/mm-url.el
+++ b/lisp/mm-url.el
@@ -1,5 +1,5 @@
 ;;; mm-url.el --- a wrapper of url functions/commands for Gnus
-;; Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+;; Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
 
 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
 
@@ -32,10 +32,14 @@
 (eval-when-compile (require 'cl))
 
 (require 'mm-util)
+(require 'gnus)
 
 (eval-and-compile
   (autoload 'executable-find "executable"))
 
+(eval-when-compile
+  (require 'timer))
+
 (defgroup mm-url nil
   "A wrapper of url package and external url command for Gnus."
   :group 'gnus)
@@ -44,7 +48,7 @@
 				(condition-case nil
 				    (require 'url)
 				  (error nil)))
-  "*If not-nil, use external grab program `mm-url-program'."
+  "*If non-nil, use external grab program `mm-url-program'."
   :type 'boolean
   :group 'mm-url)
 
@@ -54,15 +58,16 @@
     (lynx "lynx" "-source")
     (curl "curl")))
 
-(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'."
+  :type '(choice
 	  (symbol :tag "wget" wget)
 	  (symbol :tag "w3m" w3m)
 	  (symbol :tag "lynx" lynx)
@@ -78,6 +83,13 @@
 
 ;;; 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
   '(
@@ -253,21 +265,43 @@ This is taken from RFC 2396.")
 
 (defun mm-url-load-url ()
   "Load `url-insert-file-contents'."
-  (condition-case ()
-      (require 'url-handlers)
-    (error nil))
-  (require 'url))
+  (unless (condition-case ()
+	      (require 'url-handlers)
+	    (error nil))
+    ;; w3-4.0pre0.46 or earlier version.
+    (require 'w3-vars)
+    (require 'url)))
 
 (defun mm-url-insert-file-contents (url)
   (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))
+      (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))
-      (prog1
-	  (url-insert-file-contents url)
-	(setq buffer-file-name name)))))
+    (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)))
 
 (defun mm-url-insert-file-contents-external (url)
   (let (program args)
@@ -279,20 +313,38 @@ This is taken from RFC 2396.")
 	    args (append mm-url-arguments (list url))))
     (apply 'call-process program nil t nil args)))
 
+(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."
@@ -319,7 +371,7 @@ If FOLLOW-REFRESH is non-nil, redirect refresh url in META."
   (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.