MIME part - pipe-to-command

MIME part - pipe-to-command

[Trey Jackson]

All,

Using Oort Gnus v0.06.

I'm constantly getting ZIPped mime attachments from my outlook
co-workers.  I'm trying to figure out how to save these attachments in
their unzipped format.  e.g. a power point slide sent via Outlook is
automatically compressed and arrives in a .ZIP archive - I'd like to
save it as a powerpoint in one easy move.

I tried using the menu option: pipe-to-command, but the command I type
doesn't actually get run on/with any piped data, or even a buffer with
the contents of the MIME part.  It gets run on a buffer containing the
header of the MIME part.  e.g. for a recent ZIPped .ppt file:

,----------------
| Content-Type: application/octet-stream
| Content-ID: <qkx1y8kb1rn.fsf@dlxw0066.pdx.intel.com>
| Content-Transfer-Encoding: binary
| 
`----------------

I'm not sure how this is supposed to be used to view/extract the mime
part - which happens to be a file named 'RFS_flow_r0.ZIP'.

Any help?

The actual function I tracked the pipe-to-saved-command is:

    mm-pipe-part  (mm-decode.el)

Is this a feature or a bug?
What am I missing here?


tia,

TJ

-- 
Trey Jackson
tjackson@ichips.intel.com

"Rule number one: don't inhale water."
-- Daniel Russell

Re: MIME part - pipe-to-command

[Kai Großjohann]

Does it work to use `v' on the MIME button and to then specify
something like

    cd /tmp/foo ; unzip %s

so that the file appears in /tmp/foo?

You could also define an imaginary mime type and put a useful command
in ~/.mailcap.  Then you can use `t' (view as type in the menu) on the
MIME button and specify that mime type.

    trey/zip; nifty-unzip %s

The above line could go in ~/.mailcap and then you can use that type.

kai
-- 
A large number of young women don't trust men with beards.  (BFBS Radio)

Re: MIME part - pipe-to-command

[Trey Jackson]

 >Does it work to use `v' on the MIME button and to then specify
 >something like
 >
 >    cd /tmp/foo ; unzip %s
 >
 >so that the file appears in /tmp/foo?

Yes, that does appear to work.  Thanks.

Is there a way to make the pipe command work?  The command description
sounds like the file contents will be piped through whatever shell
command you enter.  But the code doesn't appear to do that.  Is that a bug?


Before Kai's reply, I ended up adding a new button to
'gnus-mime-button-commands, which basically just did a save-part, then
my unzip command.  But Kai's solution does appear to be cleaner.

,----------------
| (add-hook 'gnus-art-load-hook tj-gnus-add-unzip-button)
| (defun tj-gnus-add-unzip-button ()
|   (nconc gnus-mime-button-commands (copy-sequence '((tj-gnus-mime-part "z" "UnZip thingy")))))
| (defun tj-gnus-mime-part ()
|   "Unzip the MIME part under point."
|   (interactive)
|   (gnus-article-check-buffer)
|   (let ((data (get-text-property (point) 'gnus-data)))
|     (when data
|       (tj-unzip-file (mm-save-part data)))))
| (defun tj-unzip-file (name)
|   "Pipe HANDLE to a process."
|   (let* ((name (string-replace " " "\\ " name))
|          (command (concat "/usr/bin/unzip -f -o -d " (file-name-directory name) " " name " && /bin/rm -f " name "")))
|     (shell-command command)))
`----------------


TJ

-- 
Trey Jackson
tjackson@ichips.intel.com

"Thou shalt not follow the NULL pointer,
 for chaos and madness await thee at its end."
-- #2 of the Ten Commandments for C programmers

Re: MIME part - pipe-to-command

[Lars Magne Ingebrigtsen]

Trey Jackson <tjackson@ichips.intel.com> writes:

> I tried using the menu option: pipe-to-command, but the command I type
> doesn't actually get run on/with any piped data, or even a buffer with
> the contents of the MIME part.  It gets run on a buffer containing the
> header of the MIME part.  e.g. for a recent ZIPped .ppt file:
>
> ,----------------
> | Content-Type: application/octet-stream
> | Content-ID: <qkx1y8kb1rn.fsf@dlxw0066.pdx.intel.com>
> | Content-Transfer-Encoding: binary
> | 
> `----------------

That's odd.  I use the `|' command on MIME parts all the time (to
pipe to patch, for instance), and I haven't seen any problems...

-- 
(domestic pets only, the antidote for overdose, milk.)
   larsi@gnus.org * Lars Magne Ingebrigtsen