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fix(macos): strip extended attributes from the App Store app before signing

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- App Store Connect refused the package with error 91109 because the embedded provisioning profile kept the com.apple.quarantine attribute the browser set when it was downloaded.
- Every extended attribute is now cleared from the app before it is signed, so no file copied into the bundle can carry quarantine into the package; com.apple.provenance, which macOS sets on every file and which cannot be cleared, remains.
This commit is contained in:
James Coleman 2026-09-28 15:12:13 -05:00
parent b70ac24cc4
commit 8a8bf653fe
2 changed files with 12 additions and 2 deletions
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4
packaging/macos/bundle.sh
View file

@ -102,7 +102,9 @@ if [ -n "$helper" ]; then
identity=${MIDI_HARBOR_SIGNING_IDENTITY:--}
fi
# Sign.
# Sign, with no extended attributes: App Store Connect refuses a package holding a file
# marked with com.apple.quarantine, as a downloaded profile is (research R-103).
xattr -cr "$app"
plutil -lint "$app/Contents/Info.plist" >/dev/null
codesign --force --options runtime --sign "$identity" \
--entitlements packaging/macos/helper.entitlements \

10
specs/016-app-store-submission/research.md
View file

@ -36,6 +36,13 @@ owner rewrites history before publishing and the count would fall.
used for hashing and random numbers, which are exempt. `ITSAppUsesNonExemptEncryption` is false,
so App Store Connect does not ask at every upload.
**Extended attributes are stripped before signing.** The first upload was refused with error
91109: `Contents/embedded.provisionprofile` carried `com.apple.quarantine`, which the browser set
on the downloaded profile and `cp` kept. `xattr -cr` on the app before signing removes it and
anything else a copied file brings. `com.apple.provenance` stays on every file, since macOS
sets it on whatever an app writes and it cannot be cleared; App Store Connect's check names only
quarantine.
**Evidence**, `make appstore` on the development Mac:
- `lipo -archs`: `x86_64 arm64` for both executables, once `x86_64-apple-darwin` was installed.
@ -48,4 +55,5 @@ so App Store Connect does not ask at every upload.
(8XMLMKNPUT)", which it reports as a development certificate, as it does every App Store
installer certificate.
**Not checked**: App Store Connect's own validation, which runs on upload.
**Not checked**: an upload after the quarantine fix; the expanded package carries no attribute but
`com.apple.provenance`.