notmuch/util/repair.h, branch feature/git-remote

util/repair: identify and repair "Mixed Up" mangled messages

2019-09-15T23:06:31Z

Implement a functional identification and repair process for "Mixed Up" MIME messages as described in https://tools.ietf.org/html/draft-dkg-openpgp-pgpmime-message-mangling-00#section-4.1 The detection test is not entirely complete, in that it does not verify the contents of the latter two message subparts, but this is probably safe to skip, because those two parts are unlikely to be readable anyway, and the only part we are effectively omitting (the first subpart) is guaranteed to be empty anyway, so its removal can be reversed if you want to do so. I've left FIXMEs in the code so that anyone excited about adding these additional checks can see where to put them in. Signed-off-by: Daniel Kahn Gillmor

util/repair: add _notmuch_repair_crypto_payload_skip_legacy_display

2019-09-01T11:40:33Z

This is a utility function designed to make it easier to "fast-forward" past a legacy-display part associated with a cryptographic envelope, and show the user the intended message body. The bulk of the ugliness in here is in the test function _notmuch_crypto_payload_has_legacy_display, which tests all of the things we'd expect to be true in a a cryptographic payload that contains a legacy display part. Signed-off-by: Daniel Kahn Gillmor

repair: set up codebase for repair functionality

2019-09-01T11:20:25Z

This adds no functionality directly, but is a useful starting point for adding new repair functionality. Signed-off-by: Daniel Kahn Gillmor