fix(publish): read the signed bytes back as byte[], not as a wrapped Object[]

The ',' operator elsewhere in this file exists because PowerShell unrolls an array
RETURNED from a function; a property assignment does not unroll, so it wrapped the
byte[] in an Object[] of length 1 and the upload failed converting it back. Signing
itself was fine -- run 34253331703 signed all six scripts and uploaded none, so nothing
reached the download alias.

Added the invariant that would have caught it: signed bytes must be longer than the
unsigned form, since a signature only ever adds.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Oliver Kieselbach
2026-09-08 18:54:36 +02:00
parent 0ac548bfce
commit cc6be10532
+12 -2
View File
@@ -232,8 +232,18 @@ function Set-PublishSetSignature {
if ($ExpectedPublisher -and $sig.SignerCertificate.Subject -notlike $ExpectedPublisher) {
throw "$($item.BlobName) was signed by '$($sig.SignerCertificate.Subject)', expected '$ExpectedPublisher'."
}
$item.Bytes = ,([System.IO.File]::ReadAllBytes($path))
Write-Host " signed $($item.BlobName) ($($item.Bytes.Length) bytes, signer $($sig.SignerCertificate.Subject.Split(',')[0]))"
# Plain assignment, NO comma operator: the ',' elsewhere in this file exists because
# PowerShell unrolls an array RETURNED from a function, which is not what a property
# assignment does -- here it would wrap the byte[] in an Object[] of length 1 and the
# upload would fail converting it back.
$signedBytes = [System.IO.File]::ReadAllBytes($path)
if ($signedBytes.Length -le $item.Bytes.Length) {
throw ("Signed $($item.BlobName) is $($signedBytes.Length) bytes but the unsigned form " +
"was $($item.Bytes.Length) -- a signature only ever adds bytes, so this is a " +
'read-back bug, not a signing result.')
}
$item.Bytes = $signedBytes
Write-Host " signed $($item.BlobName) ($($signedBytes.Length) bytes, signer $($sig.SignerCertificate.Subject.Split(',')[0]))"
}
}