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Ville Välimaa
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Mar 6, 2017
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| // | ||
| // PortScanner.swift | ||
| // LANScan | ||
| // | ||
| // Created by Ville Välimaa on 04/03/2017. | ||
| // Copyright © 2017 Ville Välimaa. All rights reserved. | ||
| // | ||
|
|
||
| import Foundation | ||
| import SwiftSocket | ||
| import ReactiveCocoa | ||
|
|
||
| class PortScanner { | ||
|
|
||
| static func scanPortsOn(host:Host) -> RACSignal { | ||
| guard let ip = host.ipAddress else { return RACSignal() } | ||
| return RACSignal.createSignal({ (subscriber: RACSubscriber?) -> RACDisposable? in | ||
| DispatchQueue.global(qos: .background).async { | ||
| (Array(1...100) | ||
| .map { signalForPort(port: $0, ipAddress: ip) } as NSArray | ||
| |> RACSignal.combineLatest) | ||
| .deliverOnMainThread() | ||
| .subscribeNext({ (services:Any?) in | ||
| let finalServices = ((services as! RACTuple).allObjects() as! Array<String>) | ||
| .filter { $0 != Constants.NO_SERVICE } | ||
| subscriber!.sendNext(finalServices) | ||
| subscriber?.sendCompleted() | ||
| }) | ||
| } | ||
| return RACDisposable(block: { | ||
| }) | ||
| }) | ||
| } | ||
|
|
||
| private static func signalForPort(port:Int32, ipAddress:String) -> RACSignal { | ||
| return RACSignal.createSignal({ (subscriber: RACSubscriber?) -> RACDisposable? in | ||
| let client = TCPClient(address: ipAddress, port: port) | ||
| switch client.connect(timeout: 1) { | ||
| case .success: | ||
| subscriber?.sendNext(String(port)) | ||
| subscriber?.sendCompleted() | ||
| case .failure: | ||
| subscriber?.sendNext(Constants.NO_SERVICE) | ||
| subscriber?.sendCompleted() | ||
| } | ||
| return RACDisposable(block: { | ||
| }) | ||
| }) | ||
| } | ||
| } |
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