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‎Sources/Domain/Domain.swift‎

Lines changed: 137 additions & 137 deletions
Original file line numberDiff line numberDiff line change
@@ -11,172 +11,172 @@ import RFC_5321
1111

1212
/// A domain name that can be represented according to different RFC standards
1313
public struct _Domain: Hashable, Sendable {
14-
let rfc1035: RFC_1035.Domain?
15-
let rfc1123: RFC_1123.Domain?
16-
let rfc5321: RFC_5321.Domain
17-
18-
/// Initialize with a domain string
19-
public init(_ string: String) throws {
20-
// RFC 5321 is required as it's our most permissive format
21-
self.rfc5321 = try RFC_5321.Domain(string)
22-
23-
// Try to initialize stricter formats if possible
24-
self.rfc1123 = try? RFC_1123.Domain(string)
25-
self.rfc1035 = try? RFC_1035.Domain(string)
26-
}
27-
28-
/// Initialize with an array of labels
29-
public init(labels: [String]) throws {
30-
try self.init(labels.joined(separator: "."))
31-
}
14+
let rfc1035: RFC_1035.Domain?
15+
let rfc1123: RFC_1123.Domain?
16+
let rfc5321: RFC_5321.Domain
17+
18+
/// Initialize with a domain string
19+
public init(_ string: String) throws {
20+
// RFC 5321 is required as it's our most permissive format
21+
self.rfc5321 = try RFC_5321.Domain(string)
22+
23+
// Try to initialize stricter formats if possible
24+
self.rfc1123 = try? RFC_1123.Domain(string)
25+
self.rfc1035 = try? RFC_1035.Domain(string)
26+
}
27+
28+
/// Initialize with an array of labels
29+
public init(labels: [String]) throws {
30+
try self.init(labels.joined(separator: "."))
31+
}
3232
}
3333

3434
public typealias Domain = _Domain
3535

3636
extension Domain {
37-
/// Initialize from RFC1035
38-
public init(rfc1035: RFC_1035.Domain) throws {
39-
self.rfc1035 = rfc1035
40-
self.rfc1123 = try {
41-
guard let domain = try? RFC_1123.Domain(rfc1035.name) else {
42-
throw DomainError.conversionFailure
43-
}
44-
return domain
45-
}()
46-
self.rfc5321 = try {
47-
guard let domain = try? RFC_5321.Domain(rfc1035.name) else {
48-
throw DomainError.conversionFailure
49-
}
50-
return domain
51-
}()
52-
}
53-
54-
/// Initialize from RFC1123
55-
public init(rfc1123: RFC_1123.Domain) throws {
56-
self.rfc1035 = nil // RFC1123 may not be RFC1035 compliant
57-
self.rfc1123 = rfc1123
58-
self.rfc5321 = try {
59-
guard let domain = try? RFC_5321.Domain(rfc1123.name) else {
60-
throw DomainError.conversionFailure
61-
}
62-
return domain
63-
}()
64-
}
65-
66-
/// Initialize from RFC_5321.Domain
67-
public init(rfc5321: RFC_5321.Domain) {
68-
self.rfc1035 = nil // RFC_5321.Domain may not be RFC1035 compliant
69-
self.rfc1123 = nil // RFC_5321.Domain may not be RFC1123 compliant
70-
self.rfc5321 = rfc5321
71-
}
37+
/// Initialize from RFC1035
38+
public init(rfc1035: RFC_1035.Domain) throws {
39+
self.rfc1035 = rfc1035
40+
self.rfc1123 = try {
41+
guard let domain = try? RFC_1123.Domain(rfc1035.name) else {
42+
throw DomainError.conversionFailure
43+
}
44+
return domain
45+
}()
46+
self.rfc5321 = try {
47+
guard let domain = try? RFC_5321.Domain(rfc1035.name) else {
48+
throw DomainError.conversionFailure
49+
}
50+
return domain
51+
}()
52+
}
53+
54+
/// Initialize from RFC1123
55+
public init(rfc1123: RFC_1123.Domain) throws {
56+
self.rfc1035 = nil // RFC1123 may not be RFC1035 compliant
57+
self.rfc1123 = rfc1123
58+
self.rfc5321 = try {
59+
guard let domain = try? RFC_5321.Domain(rfc1123.name) else {
60+
throw DomainError.conversionFailure
61+
}
62+
return domain
63+
}()
64+
}
65+
66+
/// Initialize from RFC_5321.Domain
67+
public init(rfc5321: RFC_5321.Domain) {
68+
self.rfc1035 = nil // RFC_5321.Domain may not be RFC1035 compliant
69+
self.rfc1123 = nil // RFC_5321.Domain may not be RFC1123 compliant
70+
self.rfc5321 = rfc5321
71+
}
7272
}
7373

7474
// MARK: - Properties
7575
extension Domain {
76-
/// The domain string, using the most specific format available
77-
public var name: String {
78-
rfc1035?.name ?? rfc1123?.name ?? rfc5321.name
79-
}
80-
81-
/// The top-level domain if available (only for RFC1035/1123 domains)
82-
public var tld: String? {
83-
rfc1035?.tld?.stringValue ?? rfc1123?.tld?.stringValue
84-
}
85-
86-
/// The second-level domain if available (only for RFC1035/1123 domains)
87-
public var sld: String? {
88-
rfc1035?.sld?.stringValue ?? rfc1123?.sld?.stringValue
89-
}
90-
91-
/// Returns true if this is a standard domain (not an IP address)
92-
public var isStandardDomain: Bool {
93-
rfc1123 != nil
94-
}
95-
96-
// /// Returns true if this is an IP address literal
97-
// public var isAddressLiteral: Bool {
98-
// rfc5321.isAddressLiteral
99-
// }
76+
/// The domain string, using the most specific format available
77+
public var name: String {
78+
rfc1035?.name ?? rfc1123?.name ?? rfc5321.name
79+
}
80+
81+
/// The top-level domain if available (only for RFC1035/1123 domains)
82+
public var tld: String? {
83+
rfc1035?.tld?.stringValue ?? rfc1123?.tld?.stringValue
84+
}
85+
86+
/// The second-level domain if available (only for RFC1035/1123 domains)
87+
public var sld: String? {
88+
rfc1035?.sld?.stringValue ?? rfc1123?.sld?.stringValue
89+
}
90+
91+
/// Returns true if this is a standard domain (not an IP address)
92+
public var isStandardDomain: Bool {
93+
rfc1123 != nil
94+
}
95+
96+
// /// Returns true if this is an IP address literal
97+
// public var isAddressLiteral: Bool {
98+
// rfc5321.isAddressLiteral
99+
// }
100100
}
101101

102102
// MARK: - Domain Operations
103103
extension Domain {
104-
/// Returns true if this is a subdomain of the given domain
105-
public func isSubdomain(of parent: Domain) -> Bool {
106-
// Use the most specific format available for both domains
107-
if let myRFC1035 = rfc1035, let parentRFC1035 = parent.rfc1035 {
108-
return myRFC1035.isSubdomain(of: parentRFC1035)
109-
}
110-
if let myRFC1123 = rfc1123, let parentRFC1123 = parent.rfc1123 {
111-
return myRFC1123.isSubdomain(of: parentRFC1123)
112-
}
113-
return false // Can't determine subdomain relationship for RFC_5321.Domain address literals
104+
/// Returns true if this is a subdomain of the given domain
105+
public func isSubdomain(of parent: Domain) -> Bool {
106+
// Use the most specific format available for both domains
107+
if let myRFC1035 = rfc1035, let parentRFC1035 = parent.rfc1035 {
108+
return myRFC1035.isSubdomain(of: parentRFC1035)
114109
}
115-
116-
/// Creates a subdomain by prepending new labels
117-
public func addingSubdomain(_ components: String...) throws -> Domain {
118-
// Use the most specific format available
119-
if let domain = rfc1035 {
120-
return try Domain(rfc1035: domain.addingSubdomain(components))
121-
}
122-
if let domain = rfc1123 {
123-
return try Domain(rfc1123: domain.addingSubdomain(components))
124-
}
125-
throw DomainError.cannotCreateSubdomain
110+
if let myRFC1123 = rfc1123, let parentRFC1123 = parent.rfc1123 {
111+
return myRFC1123.isSubdomain(of: parentRFC1123)
126112
}
127-
128-
/// Returns the parent domain by removing the leftmost label
129-
public func parent() throws -> Domain? {
130-
// Use the most specific format available
131-
if let domain = rfc1035, let parent = try domain.parent() {
132-
return try Domain(rfc1035: parent)
133-
}
134-
if let domain = rfc1123, let parent = try domain.parent() {
135-
return try Domain(rfc1123: parent)
136-
}
137-
return nil
113+
return false // Can't determine subdomain relationship for RFC_5321.Domain address literals
114+
}
115+
116+
/// Creates a subdomain by prepending new labels
117+
public func addingSubdomain(_ components: String...) throws -> Domain {
118+
// Use the most specific format available
119+
if let domain = rfc1035 {
120+
return try Domain(rfc1035: domain.addingSubdomain(components))
138121
}
122+
if let domain = rfc1123 {
123+
return try Domain(rfc1123: domain.addingSubdomain(components))
124+
}
125+
throw DomainError.cannotCreateSubdomain
126+
}
127+
128+
/// Returns the parent domain by removing the leftmost label
129+
public func parent() throws -> Domain? {
130+
// Use the most specific format available
131+
if let domain = rfc1035, let parent = try domain.parent() {
132+
return try Domain(rfc1035: parent)
133+
}
134+
if let domain = rfc1123, let parent = try domain.parent() {
135+
return try Domain(rfc1123: parent)
136+
}
137+
return nil
138+
}
139139
}
140140

141141
// MARK: - Errors
142142
extension Domain {
143-
public enum DomainError: Error, Equatable, LocalizedError {
144-
case cannotCreateSubdomain
145-
case conversionFailure
146-
case invalidFormat(description: String)
147-
148-
public var errorDescription: String? {
149-
switch self {
150-
case .cannotCreateSubdomain:
151-
return "Cannot create subdomain for IP address literals"
152-
case .conversionFailure:
153-
return "Failed to convert"
154-
case .invalidFormat(description: let description):
155-
return "Invalid format: \(description)"
156-
}
157-
}
143+
public enum DomainError: Error, Equatable, LocalizedError {
144+
case cannotCreateSubdomain
145+
case conversionFailure
146+
case invalidFormat(description: String)
147+
148+
public var errorDescription: String? {
149+
switch self {
150+
case .cannotCreateSubdomain:
151+
return "Cannot create subdomain for IP address literals"
152+
case .conversionFailure:
153+
return "Failed to convert"
154+
case .invalidFormat(let description):
155+
return "Invalid format: \(description)"
156+
}
158157
}
158+
}
159159
}
160160

161161
// MARK: - Protocol Conformances
162162
extension Domain: CustomStringConvertible {
163-
public var description: String { name }
163+
public var description: String { name }
164164
}
165165

166166
extension Domain: Codable {
167-
public func encode(to encoder: Encoder) throws {
168-
var container = encoder.singleValueContainer()
169-
try container.encode(name)
170-
}
171-
172-
public init(from decoder: Decoder) throws {
173-
let container = try decoder.singleValueContainer()
174-
let string = try container.decode(String.self)
175-
try self.init(string)
176-
}
167+
public func encode(to encoder: Encoder) throws {
168+
var container = encoder.singleValueContainer()
169+
try container.encode(name)
170+
}
171+
172+
public init(from decoder: Decoder) throws {
173+
let container = try decoder.singleValueContainer()
174+
let string = try container.decode(String.self)
175+
try self.init(string)
176+
}
177177
}
178178

179179
extension Domain: RawRepresentable {
180-
public var rawValue: String { name }
181-
public init?(rawValue: String) { try? self.init(rawValue) }
180+
public var rawValue: String { name }
181+
public init?(rawValue: String) { try? self.init(rawValue) }
182182
}

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