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wireguard-apple
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Model for an endpoint

This commit is contained in:
Roopesh Chander 2018-10-19 19:33:17 +05:30
parent 1d01d1f85d
commit 7482ee8cf5
2 changed files with 83 additions and 0 deletions
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4
WireGuard/WireGuard.xcodeproj/project.pbxproj
View File

@ -7,6 +7,7 @@
objects = {
/* Begin PBXBuildFile section */
6F693A562179E556008551C1 /* Endpoint.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6F693A552179E556008551C1 /* Endpoint.swift */; };
6F7774E1217181B1006A79B3 /* MainViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6F7774DF217181B1006A79B3 /* MainViewController.swift */; };
6F7774E2217181B1006A79B3 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6F7774E0217181B1006A79B3 /* AppDelegate.swift */; };
6F7774E421718281006A79B3 /* TunnelsListTableViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6F7774E321718281006A79B3 /* TunnelsListTableViewController.swift */; };
@ -19,6 +20,7 @@
/* End PBXBuildFile section */
/* Begin PBXFileReference section */
6F693A552179E556008551C1 /* Endpoint.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Endpoint.swift; sourceTree = "<group>"; };
6F7774DF217181B1006A79B3 /* MainViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = MainViewController.swift; sourceTree = "<group>"; };
6F7774E0217181B1006A79B3 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
6F7774E321718281006A79B3 /* TunnelsListTableViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TunnelsListTableViewController.swift; sourceTree = "<group>"; };
@ -69,6 +71,7 @@
children = (
6F7774E72172020C006A79B3 /* Configuration.swift */,
6F7774E9217229DB006A79B3 /* IPAddressRange.swift */,
6F693A552179E556008551C1 /* Endpoint.swift */,
);
path = Model;
sourceTree = "<group>";
@ -198,6 +201,7 @@
files = (
6F7774E421718281006A79B3 /* TunnelsListTableViewController.swift in Sources */,
6F7774EF21722D97006A79B3 /* TunnelsManager.swift in Sources */,
6F693A562179E556008551C1 /* Endpoint.swift in Sources */,
6F7774E2217181B1006A79B3 /* AppDelegate.swift in Sources */,
6F7774EA217229DB006A79B3 /* IPAddressRange.swift in Sources */,
6F7774E82172020C006A79B3 /* Configuration.swift in Sources */,

79
WireGuard/WireGuard/Model/Endpoint.swift Normal file
View File

@ -0,0 +1,79 @@
//
// Endpoint.swift
// WireGuard
//
// Created by Roopesh Chander on 19/10/18.
// Copyright © 2018 WireGuard LLC. All rights reserved.
//
import Foundation
import Network
@available(OSX 10.14, iOS 12.0, *)
struct Endpoint {
let host: NWEndpoint.Host
let port: NWEndpoint.Port
}
// MARK: Converting to and from String
// For use in the UI
extension Endpoint {
init?(from string: String) {
// Separation of host and port is based on 'parse_endpoint' function in
// https://git.zx2c4.com/WireGuard/tree/src/tools/config.c
guard (!string.isEmpty) else { return nil }
if (string.first! == "[") {
// Look for IPv6-style endpoint, like [::1]:80
let startOfHost = string.index(after: string.startIndex)
guard let endOfHost = string.dropFirst().firstIndex(of: "]") else { return nil }
let afterEndOfHost = string.index(after: endOfHost)
guard (string[afterEndOfHost] == ":") else { return nil }
let startOfPort = string.index(after: afterEndOfHost)
let hostString = String(string[startOfHost ..< endOfHost])
guard let endpointPort = NWEndpoint.Port(String(string[startOfPort ..< string.endIndex])) else { return nil }
host = NWEndpoint.Host(hostString)
port = endpointPort
} else {
// Look for an IPv4-style endpoint, like 127.0.0.1:80
guard let endOfHost = string.firstIndex(of: ":") else { return nil }
let startOfPort = string.index(after: endOfHost)
let hostString = String(string[string.startIndex ..< endOfHost])
guard let endpointPort = NWEndpoint.Port(String(string[startOfPort ..< string.endIndex])) else { return nil }
host = NWEndpoint.Host(hostString)
port = endpointPort
}
}
func stringRepresentation() -> String {
switch (host) {
case .name(let hostname, _):
return "\(hostname):\(port)"
case .ipv4(let address):
return "\(address):\(port)"
case .ipv6(let address):
return "[\(address)]:\(port)"
}
}
}
// MARK: Codable
// For serializing to disk
@available(OSX 10.14, iOS 12.0, *)
extension Endpoint: Codable {
public func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
try container.encode(self.stringRepresentation())
}
public init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
let endpointString = try container.decode(String.self)
guard let endpoint = Endpoint(from: endpointString) else {
throw DecodingError.invalidData
}
self = endpoint
}
enum DecodingError: Error {
case invalidData
}
}