Lennart Poettering
f14717a7e2
Previously the PullJob object took internal care of rerequested the SHA256SUMS file, if requesting <image>.sha256 didn't work. This was a weird a non-abstraction only used when actually getting the checksum files. Let's move this out of the PullJob, so that it is generic again, and does roughly the same stuff for all resources it is used for: let's define a generic .on_not_found() handler that can be set on a PullJob object, and is called whenever with see HTTP 404, and may be used to provide a new URL to try if the first didn't work. This is also preparation for later work to support PKCS#7 signatures instead of gpg signatures, where a similar logic is needed, and we thus should have a generic infrastructure place. This gets rid of the VerificationStyle field in the PullJob object: instead of storing this non-generic field we just derive the same information from the URL itself, which is safe, since we generated it ourselves earlier.
System and Service Manager
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