MIME restructuring [was: Re: release-candidate/0.6]

diff --git a/ce/31f5877b84dcf01673735a79ab9b20c02f97c2 b/ce/31f5877b84dcf01673735a79ab9b20c02f97c2
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+Return-Path: <dkg@fifthhorseman.net>\r
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+Message-ID: <4DD18DFE.7090206@fifthhorseman.net>\r
+Date: Mon, 16 May 2011 16:50:06 -0400\r
+From: Daniel Kahn Gillmor <dkg@fifthhorseman.net>\r
+User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US;\r
+       rv:1.9.2.15) Gecko/20110402 Icedove/3.1.9\r
+MIME-Version: 1.0\r
+To: Carl Worth <cworth@cworth.org>\r
+Subject: MIME restructuring [was: Re: release-candidate/0.6]\r
+References: <8762pn7gth.fsf@servo.factory.finestructure.net>\r
+       <874o4zczr8.fsf@yoom.home.cworth.org>\r
+       <87wrhvyqfn.fsf@servo.factory.finestructure.net>\r
+       <87r57ybcna.fsf@yoom.home.cworth.org>\r
+In-Reply-To: <87r57ybcna.fsf@yoom.home.cworth.org>\r
+X-Enigmail-Version: 1.1.2\r
+Content-Type: multipart/signed; micalg=pgp-sha512;\r
+       protocol="application/pgp-signature";\r
+       boundary="------------enig766C5CB43E706E134D070582"\r
+Cc: Notmuch Mail <notmuch@notmuchmail.org>\r
+X-BeenThere: notmuch@notmuchmail.org\r
+X-Mailman-Version: 2.1.13\r
+Precedence: list\r
+Reply-To: notmuch <notmuch@notmuchmail.org>\r
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+X-List-Received-Date: Mon, 16 May 2011 20:50:16 -0000\r
+\r
+This is an OpenPGP/MIME signed message (RFC 2440 and 3156)\r
+--------------enig766C5CB43E706E134D070582\r
+Content-Type: text/plain; charset=UTF-8\r
+Content-Transfer-Encoding: quoted-printable\r
+\r
+On 05/16/2011 04:42 PM, Carl Worth wrote:\r
+>      Meanwhile, I still can't tell exactly what the behavioral change\r
+>      intended is. The commit message talks about "fully recursing"\r
+>      and "match[ing] the MIME structure of the message". Was it not\r
+>      fully recursing before? In what way did the output not match the\r
+>      MIME structure before?\r
+\r
+before, the output was a linearized version of the mime tree, in\r
+particular removing the multipart pieces and only enumerating the leaves\r
+in a depth-first walk of the tree.\r
+\r
+So a message like this:\r
+\r
+A=E2=94=94=E2=94=AC=E2=95=B4multipart/signed 355339 bytes\r
+B =E2=94=9C=E2=94=AC=E2=95=B4multipart/mixed 353462 bytes\r
+C =E2=94=82=E2=94=9C=E2=95=B4text/plain 235 bytes\r
+D =E2=94=82=E2=94=94=E2=95=B4image/jpeg attachment [foo.jpg] 352752 bytes=\r
+\r
+E =E2=94=94=E2=95=B4application/pgp-signature attachment [signature.asc] =\r
+1030 bytes\r
+\r
+would come out with three parts:\r
+\r
+ 1) C\r
+ 2) D\r
+ 3) E\r
+\r
+the new code assigns this message to 5 parts:\r
+\r
+ 1) A\r
+ 2) B\r
+ 3) C\r
+ 4) D\r
+ 5) E\r
+\r
+This change is critical to be able to properly delineate which parts of\r
+a message were signed and/or encrypted.\r
+\r
+hth,\r
+\r
+       --dkg\r
+\r
+\r
+--------------enig766C5CB43E706E134D070582\r
+Content-Type: application/pgp-signature; name="signature.asc"\r
+Content-Description: OpenPGP digital signature\r
+Content-Disposition: attachment; filename="signature.asc"\r
+\r
+-----BEGIN PGP SIGNATURE-----\r
+Version: GnuPG v1.4.11 (GNU/Linux)\r
+Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/\r
+\r
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+=Z+jK\r
+-----END PGP SIGNATURE-----\r
+\r
+--------------enig766C5CB43E706E134D070582--\r