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Uses UTIs to determine whether apps are installed or not

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AltStore now inserts an app-specific UTI when resigning apps, and it periodically checks whether that app has been deleted by checking whether UTTypeCopyDeclaration returns nil for the same app-specific UTI.
This commit is contained in:
Riley Testut
2019-12-17 19:17:45 -08:00
parent 748ad8588d
commit e3ea200ad5
4 changed files with 28 additions and 2 deletions
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11
AltStore/Operations/ResignAppOperation.swift
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@@ -372,6 +372,17 @@ private extension ResignAppOperation
infoDictionary[Bundle.Info.appGroups] = appGroups
}
// Add app-specific exported UTI so we can check later if this app (extension) is installed or not.
let installedAppUTI = ["UTTypeConformsTo": [],
"UTTypeDescription": "AltStore Installed App",
"UTTypeIconFiles": [],
"UTTypeIdentifier": InstalledApp.installedAppUTI(forBundleIdentifier: profile.bundleIdentifier),
"UTTypeTagSpecification": [:]] as [String : Any]
var exportedUTIs = infoDictionary[Bundle.Info.exportedUTIs] as? [[String: Any]] ?? []
exportedUTIs.append(installedAppUTI)
infoDictionary[Bundle.Info.exportedUTIs] = exportedUTIs
try (infoDictionary as NSDictionary).write(to: bundle.infoPlistURL)
}