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//===----------------------------------------------------------------------===//
//
// This source file is part of the SwiftCertificates open source project
//
// Copyright (c) 2023 Apple Inc. and the SwiftCertificates project authors
// Licensed under Apache License v2.0
//
// See LICENSE.txt for license information
// See CONTRIBUTORS.txt for the list of SwiftCertificates project authors
//
// SPDX-License-Identifier: Apache-2.0
//
//===----------------------------------------------------------------------===//
import XCTest
import SwiftASN1
@testable import X509
final class NameConstraintsTests: XCTestCase {
static let names: [DistinguishedName] = [
try! DistinguishedName {
CountryName("US")
StateOrProvinceName("CA")
OrganizationName("Apple")
},
try! DistinguishedName {
CountryName("US")
StateOrProvinceName("CA")
OrganizationName("Apple")
CommonName("Test")
},
try! DistinguishedName {
CountryName("GB")
OrganizationName("Apple")
CommonName("Test")
},
]
func testDirectoryNameMatches() throws {
// The key here is that a distinguished name only matches a constraint if they're equal.
for firstName in NameConstraintsTests.names {
for secondName in NameConstraintsTests.names {
XCTAssertEqual(
NameConstraintsPolicy.directoryNameMatchesConstraint(
directoryName: firstName,
constraint: secondName
),
firstName == secondName,
"Expected directory name match to be \(firstName == secondName) for \(firstName) and \(secondName)"
)
}
}
}
func testLazyProperties() {
struct NameConstraintsPropertyValue {
var property: PartialKeyPath<NameConstraints>
var setValue: (inout NameConstraints) -> Void
var assertValueIsSet: (NameConstraints) -> Void
init<Property: Hashable>(
_ keyPath: WritableKeyPath<NameConstraints, Property>,
value: Property,
file: StaticString = #filePath,
line: UInt = #line
) {
self.property = keyPath
self.setValue = { constraints in
constraints[keyPath: keyPath] = value
}
self.assertValueIsSet = { constraints in
// check Equatable conformance
XCTAssertEqual(constraints[keyPath: keyPath], value, file: file, line: line)
// check Hashable conformance
var lhsHasher = Hasher()
lhsHasher.combine(constraints[keyPath: keyPath])
var rhsHasher = Hasher()
rhsHasher.combine(value)
XCTAssertEqual(
lhsHasher.finalize(),
rhsHasher.finalize(),
"hashes do not match for \(constraints[keyPath: keyPath]) and \(value)",
file: file,
line: line
)
}
}
}
let tests: [NameConstraintsPropertyValue] = [
NameConstraintsPropertyValue(\.excludedDNSDomains, value: []),
NameConstraintsPropertyValue(\.excludedDNSDomains, value: ["apple.com"]),
NameConstraintsPropertyValue(\.excludedDNSDomains, value: ["example.com"]),
NameConstraintsPropertyValue(\.excludedDNSDomains, value: ["apple.com", "example.com"]),
NameConstraintsPropertyValue(\.permittedDNSDomains, value: []),
NameConstraintsPropertyValue(\.permittedDNSDomains, value: ["apple.com"]),
NameConstraintsPropertyValue(\.permittedDNSDomains, value: ["example.com"]),
NameConstraintsPropertyValue(\.permittedDNSDomains, value: ["apple.com", "example.com"]),
NameConstraintsPropertyValue(\.excludedEmailAddresses, value: []),
NameConstraintsPropertyValue(\.excludedEmailAddresses, value: ["foo@example.com"]),
NameConstraintsPropertyValue(\.excludedEmailAddresses, value: ["bar@example.com"]),
NameConstraintsPropertyValue(\.excludedEmailAddresses, value: ["foo@example.com", "bar@example.com"]),
NameConstraintsPropertyValue(\.permittedEmailAddresses, value: []),
NameConstraintsPropertyValue(\.permittedEmailAddresses, value: ["foo@example.com"]),
NameConstraintsPropertyValue(\.permittedEmailAddresses, value: ["bar@example.com"]),
NameConstraintsPropertyValue(\.permittedEmailAddresses, value: ["foo@example.com", "bar@example.com"]),
NameConstraintsPropertyValue(\.excludedIPRanges, value: []),
NameConstraintsPropertyValue(\.excludedIPRanges, value: [.v4("127.0.0.1")]),
NameConstraintsPropertyValue(\.excludedIPRanges, value: [.v4("192.168.0.1")]),
NameConstraintsPropertyValue(\.excludedIPRanges, value: [.v4("127.0.0.1"), .v4("192.168.0.1")]),
NameConstraintsPropertyValue(\.permittedIPRanges, value: []),
NameConstraintsPropertyValue(\.permittedIPRanges, value: [.v4("127.0.0.1")]),
NameConstraintsPropertyValue(\.permittedIPRanges, value: [.v4("192.168.0.1")]),
NameConstraintsPropertyValue(\.permittedIPRanges, value: [.v4("127.0.0.1"), .v4("192.168.0.1")]),
NameConstraintsPropertyValue(\.forbiddenURIDomains, value: []),
NameConstraintsPropertyValue(\.forbiddenURIDomains, value: [".example.com"]),
NameConstraintsPropertyValue(\.forbiddenURIDomains, value: [".apple.com"]),
NameConstraintsPropertyValue(\.forbiddenURIDomains, value: [".example.com", ".apple.com"]),
NameConstraintsPropertyValue(\.permittedURIDomains, value: []),
NameConstraintsPropertyValue(\.permittedURIDomains, value: [".example.com"]),
NameConstraintsPropertyValue(\.permittedURIDomains, value: [".apple.com"]),
NameConstraintsPropertyValue(\.permittedURIDomains, value: [".example.com", ".apple.com"]),
]
// This will set the properties to the above values in order (and in reversed order).
// After it sets each property it asserts that the previous latest value of other properties are still set
// to their previous latest values and are not modified.
var nameConstraints = NameConstraints()
var latestValueForProperty: [PartialKeyPath<NameConstraints>: NameConstraintsPropertyValue] = [:]
for test in tests + tests.reversed() {
test.setValue(&nameConstraints)
latestValueForProperty[test.property] = test
let newNameConstraints = NameConstraints(
permittedDNSDomains: nameConstraints.permittedDNSDomains,
excludedDNSDomains: nameConstraints.excludedDNSDomains,
permittedIPRanges: nameConstraints.permittedIPRanges,
excludedIPRanges: nameConstraints.excludedIPRanges,
permittedEmailAddresses: nameConstraints.permittedEmailAddresses,
excludedEmailAddresses: nameConstraints.excludedEmailAddresses,
permittedURIDomains: nameConstraints.permittedURIDomains,
forbiddenURIDomains: nameConstraints.forbiddenURIDomains
)
for latestValue in latestValueForProperty.values {
latestValue.assertValueIsSet(nameConstraints)
latestValue.assertValueIsSet(newNameConstraints)
}
}
}
}
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