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rmailmm.el: record truncated mime entities.

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Richard M. Stallman 2011-07-06 12:44:33 -04:00
parent 596a09585f
commit aa8a705c16
2 changed files with 38 additions and 11 deletions
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10
lisp/ChangeLog
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@ -1,3 +1,13 @@
2011-07-06 Richard Stallman <rms@gnu.org>
* mail/rmailmm.el: Give entity a new slot, TRUNCATED.
(rmail-mime-entity): New arg TRUNCATED.
(rmail-mime-entity-truncated, rmail-mime-entity-set-truncated):
New functions.
(rmail-mime-save): Warn if entity is truncated.
(rmail-mime-toggle-hidden): Likewise, for showing.
(rmail-mime-process-multipart): Record when an entity is truncated.
2011-07-06 Lars Magne Ingebrigtsen <larsi@gnus.org>
* progmodes/grep.el (rgrep): Don't bind `process-connection-type',

39
lisp/mail/rmailmm.el
View file

@ -153,20 +153,21 @@ MIME entities.")
;;; MIME-entity object
(defun rmail-mime-entity (type disposition transfer-encoding
display header tagline body children handler)
display header tagline body children handler
&optional truncated)
"Retrun a newly created MIME-entity object from arguments.
A MIME-entity is a vector of 9 elements:
A MIME-entity is a vector of 10 elements:
[TYPE DISPOSITION TRANSFER-ENCODING DISPLAY HEADER TAGLINE BODY
CHILDREN HANDLER]
CHILDREN HANDLER TRUNCATED]
TYPE and DISPOSITION correspond to MIME headers Content-Type and
Cotent-Disposition respectively, and has this format:
Content-Disposition respectively, and have this format:
\(VALUE (ATTRIBUTE . VALUE) (ATTRIBUTE . VALUE) ...)
VALUE is a string and ATTRIBUTE is a symbol.
Each VALUE is a string and each ATTRIBUTE is a string.
Consider the following header, for example:
@ -208,9 +209,12 @@ entity have one or more children. A \"message/rfc822\" entity
has just one child. Any other entity has no child.
HANDLER is a function to insert the entity according to DISPLAY.
It is called with one argument ENTITY."
It is called with one argument ENTITY.
TRUNCATED is non-nil if the text of this entity was truncated."
(vector type disposition transfer-encoding
display header tagline body children handler))
display header tagline body children handler truncated))
;; Accessors for a MIME-entity object.
(defsubst rmail-mime-entity-type (entity) (aref entity 0))
@ -222,6 +226,9 @@ It is called with one argument ENTITY."
(defsubst rmail-mime-entity-body (entity) (aref entity 6))
(defsubst rmail-mime-entity-children (entity) (aref entity 7))
(defsubst rmail-mime-entity-handler (entity) (aref entity 8))
(defsubst rmail-mime-entity-truncated (entity) (aref entity 9))
(defsubst rmail-mime-entity-set-truncated (entity truncated)
(aset entity 9 truncated))
(defsubst rmail-mime-message-p ()
"Non-nil if and only if the current message is a MIME."
@ -237,6 +244,10 @@ It is called with one argument ENTITY."
(directory (button-get button 'directory))
(data (button-get button 'data))
(ofilename filename))
(if (and (not (stringp data))
(rmail-mime-entity-truncated data))
(unless (y-or-n-p "This entity is truncated; save anyway? ")
(error "Aborted")))
(setq filename (expand-file-name
(read-file-name (format "Save as (default: %s): " filename)
directory
@ -387,6 +398,11 @@ The value is a vector [ INDEX HEADER TAGLINE BODY END], where
(if (and rmail-mime-mbox-buffer (= (aref segment 1) (point-min)))
(let ((new (aref (rmail-mime-entity-display entity) 1)))
(aset new 0 t))))
;; Query as a warning before showing if truncated.
(if (and (not (stringp entity))
(rmail-mime-entity-truncated entity))
(unless (y-or-n-p "This entity is truncated; show anyway? ")
(error "Aborted")))
;; Enter the shown mode.
(rmail-mime-shown-mode entity)
;; Force this body shown.
@ -816,7 +832,7 @@ The other arguments are the same as `rmail-mime-multipart-handler'."
(let ((boundary (cdr (assq 'boundary content-type)))
(subtype (cadr (split-string (car content-type) "/")))
(index 0)
beg end next entities)
beg end next entities truncated)
(unless boundary
(rmail-mm-get-boundary-error-message
"No boundary defined" content-type content-disposition
@ -845,7 +861,7 @@ The other arguments are the same as `rmail-mime-multipart-handler'."
(setq beg (point-min))
(while (or (and (search-forward boundary nil t)
(setq end (match-beginning 0)))
(setq truncated nil end (match-beginning 0)))
;; If the boundary does not appear at all,
;; the message was truncated.
;; Handle the rest of the truncated message
@ -854,7 +870,7 @@ The other arguments are the same as `rmail-mime-multipart-handler'."
(and (save-excursion
(skip-chars-forward "\n")
(> (point-max) (point)))
(setq end (point-max))))
(setq truncated t end (point-max))))
;; If this is the last boundary according to RFC 2046, hide the
;; epilogue, else hide the boundary only. Use a marker for
;; `next' because `rmail-mime-show' may change the buffer.
@ -862,7 +878,7 @@ The other arguments are the same as `rmail-mime-multipart-handler'."
(setq next (point-max-marker)))
((looking-at "[ \t]*\n")
(setq next (copy-marker (match-end 0) t)))
((= end (point-max))
(truncated
;; We're handling what's left of a truncated message.
(setq next (point-max-marker)))
(t
@ -886,6 +902,7 @@ The other arguments are the same as `rmail-mime-multipart-handler'."
;; Display a tagline.
(aset (aref (rmail-mime-entity-display child) 1) 1
(aset (rmail-mime-entity-tagline child) 2 t))
(rmail-mime-entity-set-truncated child truncated)
(push child entities)))
(delete-region end next)