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-rw-r--r--lisp/gnus/ChangeLog7
-rw-r--r--lisp/gnus/shr.el17
2 files changed, 24 insertions, 0 deletions
diff --git a/lisp/gnus/ChangeLog b/lisp/gnus/ChangeLog
index cc7897accb6..f6cc590b026 100644
--- a/lisp/gnus/ChangeLog
+++ b/lisp/gnus/ChangeLog
@@ -1,3 +1,10 @@
+2013-04-16 David Edmondson <dme@dme.org>
+
+ Support <img src="data:...">.
+
+ * shr.el (shr-image-from-data): New function.
+ (shr-tag-img) Use it.
+
2013-04-14 Andrew Cohen <cohen@bu.edu>
* nnir.el (nnir-request-set-mark): Make sure we are in the right
diff --git a/lisp/gnus/shr.el b/lisp/gnus/shr.el
index 5df5297ba8a..293ba2445e9 100644
--- a/lisp/gnus/shr.el
+++ b/lisp/gnus/shr.el
@@ -593,6 +593,17 @@ size, and full-buffer size."
(put-text-property start (point) type value))))))))))
(kill-buffer image-buffer)))
+(defun shr-image-from-data (data)
+ "Return an image from the data: URI content DATA."
+ (when (string-match
+ "\\(\\([^/;,]+\\(/[^;,]+\\)?\\)\\(;[^;,]+\\)*\\)?,\\(.*\\)"
+ data)
+ (let ((param (match-string 4 data))
+ (payload (url-unhex-string (match-string 5 data))))
+ (when (string-match "^.*\\(;[ \t]*base64\\)$" param)
+ (setq payload (base64-decode-string payload)))
+ payload)))
+
(defun shr-put-image (data alt &optional flags)
"Put image DATA with a string ALT. Return image."
(if (display-graphic-p)
@@ -983,6 +994,12 @@ ones, in case fg and bg are nil."
;; Ignore zero-sized or single-pixel images.
)
((and (not shr-inhibit-images)
+ (string-match "\\`data:" url))
+ (let ((image (shr-image-from-data (substring url (match-end 0)))))
+ (if image
+ (funcall shr-put-image-function image alt)
+ (insert alt))))
+ ((and (not shr-inhibit-images)
(string-match "\\`cid:" url))
(let ((url (substring url (match-end 0)))
image)