[Evolution-hackers] Verifying an Inline PGP message

[Matt Brown <matt mattb net nz>]

Hi, 

Thanks to some excellent help from NotZed on IRC I'm making good
progress on my e-plugin to handle inline pgp messages. 

Currently it's able to scan a message, and break it up into "parts" (ie,
message text and signature). 

Ideally what I would like to be able to do now, is construct a
camel_multipart_signed structure so that I can pass it directly to
gpg_verify and save on duplicated code. But I can't see how I can do
this atm. camel_multipart_signed only seems to support parsing an
incoming PGP/Mime type message and constructing a PGP/Mime type message
from a peice of plain text to be signed. The functions for adding
arbitrary parts are very obviously not implemented.

I see a few options here
1) Update camel_multipart_signed to allow me to add arbitrary parts to
it
2) Create a new object derived from camel_multipart_signed that allows
arbitrary parts to be added
3) Duplicate most of the functionality in gpg_verify such that I don't
ned to use a camel_multipart_signed. 

Option 1 seems to be best from my point of view, but I'm assuming there
is a reason why the add part functions were not implemented in the first
place?

I realise I'm glossing over issues around canonicalisation etc atm, I
will deal with those once I've determined the basic approach towards
message verification. 

Regards

-- 
Matt Brown
matt mattb net nz
Mob +64 275 611 544 www.mattb.net.nz