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Do not rely on FileManager's isExecutableFile, check manually for Mach-O executable type

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Signed-off-by: Claudio Cambra <claudio.cambra@nextcloud.com>
This commit is contained in:
Claudio Cambra 2024-11-21 18:28:19 +08:00
parent 92f0cd96ef
commit e8ac221769
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GPG key ID: C839200C384636B0
1 changed files with 20 additions and 10 deletions
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30
admin/osx/mac-crafter/Sources/Utils/Codesign.swift
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@ -32,11 +32,21 @@ func isAppExtension(_ path: String) -> Bool {
path.hasSuffix(".appex")
}
func isExecutable(_ path: String) -> Bool {
let fm = FileManager.default
var isDir: ObjCBool = false
let exists = fm.fileExists(atPath: path, isDirectory: &isDir)
return fm.isExecutableFile(atPath: path) && !isDir.boolValue && exists
func isExecutable(_ path: String) throws -> Bool {
let outPipe = Pipe()
let errPipe = Pipe()
let task = Process()
task.standardOutput = outPipe
task.standardError = errPipe
let command = "file \"\(path)\""
guard run("/bin/zsh", ["-c", command], task: task) == 0 else {
throw CodeSigningError.failedToCodeSign("Failed to determine if \(path) is an executable.")
}
let outputData = outPipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: outputData, encoding: .utf8) ?? ""
return output.contains("Mach-O 64-bit executable")
}
func codesign(identity: String, path: String, options: String = defaultCodesignOptions) throws {
@ -60,11 +70,11 @@ func recursivelyCodesign(
}
for case let enumeratedItem as String in pathEnumerator {
guard isLibrary(enumeratedItem) ||
isAppExtension(enumeratedItem) ||
isExecutable(enumeratedItem)
else { continue }
try codesign(identity: identity, path: "\(path)/\(enumeratedItem)")
let isExecutableFile = try isExecutable(fm.currentDirectoryPath + "/" + path + "/" + enumeratedItem)
guard isLibrary(enumeratedItem) || isAppExtension(enumeratedItem) || isExecutableFile else {
continue
}
try codesign(identity: identity, path: "\(path)/\(enumeratedItem)", options: options)
}
}