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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftNIO open source project
//
// Copyright (c) 2019 Apple Inc. and the SwiftNIO project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftNIO project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import NIO
#if os(Linux) || os(FreeBSD)
/// The path to the root CA bundle file.
///
/// May be nil if we could not find the root CA bundle file.
internal let rootCAFilePath: String? = locateRootCAFile()
/// The path to the root CA bundle directory.
///
/// May be nil if we could not find the root CA bundle directory.
internal let rootCADirectoryPath: String? = locateRootCADirectory()
/// This is a list of root CA file search paths. This list contains paths as validated against several distributions.
/// If you are attempting to use SwiftNIO SSL on a platform that is not covered here and certificate validation is
/// failing, please open a pull request that adds the appropriate search path.
private let rootCAFileSearchPaths = [
"/etc/ssl/certs/ca-certificates.crt", // Ubuntu, Debian, Arch, Alpine,
"/etc/pki/tls/certs/ca-bundle.crt", // Fedora
]
/// This is a list of root CA directory search paths.
///
/// This list contains paths as validated against several distributions. If you are aware of a CA bundle on a specific distribution
/// that is not present here, please open a pull request that adds the appropriate search path.
/// Some distributions do not ship CA directories: as such, it is not a problem if a distribution that is present in rootCAFileSearchPaths
/// is not present in this list.
private let rootCADirectorySearchPaths = [
"/etc/ssl/certs", // Ubuntu, Debian, Arch, Alpine
]
private func locateRootCAFile() -> String? {
// We need to find the root CA file. We have a list of search paths: let's use them.
return rootCAFileSearchPaths.first(where: { FileSystemObject.pathType(path: $0) == .file })
}
private func locateRootCADirectory() -> String? {
return rootCADirectorySearchPaths.first(where: { FileSystemObject.pathType(path: $0) == .directory })
}
#endif
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