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Re: S/MIME with Wanderlust



All right ― we will get there!

1. executed 

2. exactly as expected by you

3. OK! Buffer *WL:Message*-nil shows decrypted raw content just as posted in my last mail (see below again). It has both parts, the text/plain and the pkcs7-signature.

4. ‘Done' message displayed in mini buffer

5. Buffer  *WL:Message*-nil did not change. Raw content exactly like in step 3. (OK)

6. Switch to *Preview- *WL:Message* and there the content is only the second part of the raw content "Content-Type: application/pkcs7-signature;”

So, here we are again, the preview buffer selects the wrong part of the raw content.

Yours best,
mc


Beginning of output in step 3 and 5: 


Content-Type: multipart/signed;
	boundary="Apple-Mail=_51A03F47-92BB-4FDC-BA9B-FFE147223058";
	protocol="application/pkcs7-signature";
	micalg=sha1


--Apple-Mail=_51A03F47-92BB-4FDC-BA9B-FFE147223058
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset=us-ascii

kdlsido gggg
--Apple-Mail=_51A03F47-92BB-4FDC-BA9B-FFE147223058
Content-Disposition: attachment;
	filename=smime.p7s
Content-Type: application/pkcs7-signature;
	name=smime.p7s
Content-Transfer-Encoding: base64

MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIFBzCCBQMw
ggProAMCAQICAQcwCwYJKoZIhvcNAQELMIIBHTELMAkGA1UEAwwCTUMxGzAZBgNVBAoMEs6gzpXO
nc6kzpHOpc6bzp/OmTGBlzCBlAYDVQQLDIGMzqDPgc+MzrPPgc6xzrzOvM6xIM6jz4XPg8+Ezq7O
(snip)

On 01.02.2014, at 09:41, Kazuhiro Ito <kzhr@d1.dion.ne.jp> wrote:

>> 1. I extracted the smime.p7s attachment by the methods you specified.
>> Both of dem worked to save the file.
>> 
>> 2. I executed the epg-decrypt-file function as you told me.
>> It worked strait away with the same output to *Messages* as the command line (see posting below)
>> 
>> 3. Yes, correctly decrypted string is there to be read in plain text. 
>> It is exactly "kdlsido gggg” (not very meaningful tough :-)
>> 
>> 4. I checked also the temp file created from function as given below.
>> The file is ok and has exactly the same content as my posting from the *Messages* buffer (see below)
>> 
>> After all, it seems the problem is (still and only) extracting the right section of "Content-Type: text/plain;” .
> 
> Thank you for testing.  This result is normal.  But, because
> epg-decrypt-file and epg-decrypt-string (used by
> mime-view-application/pkcs7-mime) have almost same algorithm for
> communicating gpgsm, I can't understand the cause of your problem.
> 
> Please check epg-decrypt-string function according to the below
> procedure.
> 
> 1. Evaluate the below code to override
> mime-view-application/pkcs7-mime function.
> 
> (progn
> (require 'mime-pgp)
> (defun mime-view-application/pkcs7-mime (entity situation)
>   (let* ((p-win (or (get-buffer-window (current-buffer))
> 		      (get-largest-window)))
> 	   (new-name
> 	    (format "%s-%s" (buffer-name) (mime-entity-number entity)))
> 	   (mother (current-buffer))
> 	   (preview-buffer (concat "*Preview-" (buffer-name) "*"))
> 	   (context (epg-make-context 'CMS))
> 	   message-buf)
>     (when (memq (or (cdr (assq 'smime-type situation)) 'enveloped-data)
> 		  '(enveloped-data signed-data))
> 	(set-buffer (setq message-buf (get-buffer-create new-name)))
> 	(let ((inhibit-read-only t)
> 	      buffer-read-only)
> 	  (erase-buffer)
> 	  (insert (epg-decrypt-string context (mime-entity-content entity)))
> 	  (goto-char (point-min))
> 	  (set-window-buffer nil (current-buffer))
> 	  (let ((cursor-in-echo-area t))
> 	    (read-key "Proceed? "))
> 	  )
> 	(setq major-mode 'mime-show-message-mode)
> 	(save-window-excursion
> 	  (mime-view-buffer nil preview-buffer mother
> 			    nil 'binary)
> 	  (make-local-variable 'mime-view-temp-message-buffer)
> 	  (setq mime-view-temp-message-buffer message-buf))
> 	(message "Done!!"))))
> )
> 
> 2. Decrypt your application/pkcs7-mime part by
> mime-view-application/pkcs7-mime function.  Decryptred raw content
> (buffer named like " *WL:Message*-nil") and "Proceed? " prompt should
> be displayed.
> 
> 3. Confirm whether decrypted raw content is corrupted.  Don't touch
> any key until you have confirmed.
> 
> 4. Hit any normal key to proceed.  After preview buffer is generated
> (but not displayed), "Done!!" message showed in minibuffer.
> 
> 5. Confirm whether decrypted raw content is corrupted or modified.
> 
> 5. Swith to preview buffer (buffer named like
> "*Preview- *WL:Message**") and confirm how decrypted content is
> displayed.
> 
> -- 
> Kazuhiro Ito
> 

Attachment: smime.p7s
Description: S/MIME cryptographic signature