[kmail2] [Bug 300142] Kmail can't render a html signature

[Denis Kurz]

https://bugs.kde.org/show_bug.cgi?id=300142

Denis Kurz  changed:

   What|Removed |Added

 CC||kde...@posteo.de
 Resolution|--- |WORKSFORME
Version|4.8.2   |4.14.2
 Status|UNCONFIRMED |RESOLVED

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[kmail2] [Bug 300142] Kmail can't render a html signature

[Solerman Kaplon]

https://bugs.kde.org/show_bug.cgi?id=300142

Solerman Kaplon  changed:

   What|Removed |Added

 CC||soler...@wonder.com.br

--- Comment #16 from Solerman Kaplon  ---
I upgraded to KMail 5.1.3 and image signatures are now showing correctly for me

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[kmail2] [Bug 300142] Kmail can't render a html signature

[Mike Jones]

https://bugs.kde.org/show_bug.cgi?id=300142

Mike Jones dr.mike.jo...@gmail.com changed:

   What|Removed |Added

 CC||dr.mike.jo...@gmail.com

--- Comment #14 from Mike Jones dr.mike.jo...@gmail.com ---
(In reply to Pierre Maraval from comment #12)
 Same problem on Kubuntu 13.10, Kmail Version 4.11.5.
 
 Another aspect of this bug (I think) is that Kmail doesn't digitally sign
 the html signature correctly (HTML signature with inline images
 (data:image/gif;base64) ).  
 
 So the sent signed email is invalid, even for other clients which otherwise
 can render html signatures in Kmail-sent mails.

Re Pierre's data:image additional point.

I can confirm that (for kde 4.10.5 and kde 4.13.3) the addition of images via
the img src=data:... to an html signature causes s/mime signing to record
an incorrect digest.  I notice that when the mail is sent the saved/received
mail has its html image elements converted to img src=cid:... which are I
believe generated on the fly. My best guess is that perhaps kmail reformats the
html after the digest is calculated rendering it void.

To test this I have created two identity profiles the only difference being
their name and whether the html signature contains img data block or not.  The
result is that after signing the email with the images in the signature (both
saved locally and sent over the wire) result in a red message box and Status:
Bad signature; whereas emails sent without images render in a green box and
verify correctly.

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[kmail2] [Bug 300142] Kmail can't render a html signature

[Mike Jones]

https://bugs.kde.org/show_bug.cgi?id=300142

--- Comment #15 from Mike Jones dr.mike.jo...@gmail.com ---
(In reply to Mike Jones from comment #14)
 (In reply to Pierre Maraval from comment #12)
  Same problem on Kubuntu 13.10, Kmail Version 4.11.5.
  
  Another aspect of this bug (I think) is that Kmail doesn't digitally sign
  the html signature correctly (HTML signature with inline images
  (data:image/gif;base64) ).  
  
  So the sent signed email is invalid, even for other clients which otherwise
  can render html signatures in Kmail-sent mails.
 
 Re Pierre's data:image additional point.
 
 I can confirm that (for kde 4.10.5 and kde 4.13.3) the addition of images
 via the img src=data:... to an html signature causes s/mime signing to
 record an incorrect digest.  I notice that when the mail is sent the
 saved/received mail has its html image elements converted to img
 src=cid:... which are I believe generated on the fly. My best guess is
 that perhaps kmail reformats the html after the digest is calculated
 rendering it void.
 
 To test this I have created two identity profiles the only difference being
 their name and whether the html signature contains img data block or not. 
 The result is that after signing the email with the images in the signature
 (both saved locally and sent over the wire) result in a red message box and
 Status: Bad signature; whereas emails sent without images render in a
 green box and verify correctly.

Additionally Adding a vcard (generated via kmail which inserts \r\n as per spec
IIRC).  There may also be an issue with either kmail or MS exchange (though I
doubt MS would want to remove it's precious carriage return character) 
replacing \r with \n resulting in \n\n substitution for \r\n, and hence voiding
the digest again.

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[kmail2] [Bug 300142] Kmail can't render a html signature

[Silver Salonen]

https://bugs.kde.org/show_bug.cgi?id=300142

Silver Salonen silver.salo...@gmail.com changed:

   What|Removed |Added

 CC||silver.salo...@gmail.com

--- Comment #13 from Silver Salonen silver.salo...@gmail.com ---
Still happens with 4.14.2.

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[kmail2] [Bug 300142] Kmail can't render a html signature

[Pierre Maraval]

https://bugs.kde.org/show_bug.cgi?id=300142

Pierre Maraval marava...@yahoo.fr changed:

   What|Removed |Added

 CC||marava...@yahoo.fr

--- Comment #12 from Pierre Maraval marava...@yahoo.fr ---
Same problem on Kubuntu 13.10, Kmail Version 4.11.5.

Another aspect of this bug (I think) is that Kmail doesn't digitally sign the
html signature correctly (HTML signature with inline images
(data:image/gif;base64) ).  

So the sent signed email is invalid, even for other clients which otherwise can
render html signatures in Kmail-sent mails.

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[kmail2] [Bug 300142] Kmail can't render a html signature

[Arthur Țițeică]

https://bugs.kde.org/show_bug.cgi?id=300142

Arthur Țițeică arthur.tite...@gmail.com changed:

   What|Removed |Added

 CC||arthur.tite...@gmail.com

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