.gitignore

@@ -2,4 +2,3 @@
 Package.resolved
 .swiftpm
 .build
-Resources/config.json

Package.swift

@@ -4,19 +4,16 @@ import PackageDescription
 let package = Package(
     name: "SesameServer",
     platforms: [
-       .macOS(.v12)
+       .macOS(.v10_15)
     ],
     dependencies: [
         .package(url: "https://github.com/vapor/vapor.git", from: "4.0.0"),
-        .package(url: "https://github.com/christophhagen/clairvoyant.git", from: "0.3.0"),
     ],
     targets: [
         .target(
             name: "App",
             dependencies: [
-                .product(name: "Vapor", package: "vapor"),
-                .product(name: "Clairvoyant", package: "Clairvoyant"),
-
+                .product(name: "Vapor", package: "vapor")
             ],
             swiftSettings: [
                 // Enable better optimizations when building in Release configuration. Despite the use of

Resources/config_example.json

@@ -1,6 +0,0 @@
-{
-    "port": 6003,
-    "keyFileName": "keys",
-    "deviceTimeout": 20,
-    "authenticationTokens" : [],
-}

Sources/App/Config.swift

@@ -3,40 +3,11 @@ import Foundation
 struct Config {
 
     /// The port where the server runs
-    let port: Int
+    static let port = 6003
 
     /// The name of the file in the `Resources` folder containing the device authentication token
-    let keyFileName: String
+    static let keyFileName = "keys"
 
     /// The seconds to wait for a response from the device
-    let deviceTimeout: Int64
-
-    /// The authentication tokens to use for monitoring of the service
-    let authenticationTokens: Set<String>
-}
-
-extension Config: Codable {
-
-}
-
-extension Config {
-
-    init(loadFrom url: URL) throws {
-        guard FileManager.default.fileExists(atPath: url.path) else {
-            fatalError("No configuration file found")
-        }
-        let data: Data
-        do {
-            data = try Data(contentsOf: url)
-        } catch {
-            print("Failed to read config data: \(error)")
-            throw error
-        }
-        do {
-            self = try JSONDecoder().decode(Config.self, from: data)
-        } catch {
-               print("Failed to decode config data: \(error)")
-               throw error
-           }
-    }
+    static let deviceTimeout: Int64 = 20
 }

Sources/App/DeviceManager.swift

@@ -17,8 +17,6 @@ final class DeviceManager {
     var deviceIsAuthenticated = false
 
     private var isOpeningNewConnection = false
-
-    private let deviceTimeout: Int64
     
     /// Indicator for device availability
     var deviceIsConnected: Bool {
@@ -28,10 +26,9 @@ final class DeviceManager {
     /// A promise to finish the request once the device responds or times out
     private var requestInProgress: EventLoopPromise<DeviceResponse>?
     
-    init(deviceKey: Data, remoteKey: Data, deviceTimeout: Int64) {
+    init(deviceKey: Data, remoteKey: Data) {
         self.deviceKey = deviceKey
         self.remoteKey = remoteKey
-        self.deviceTimeout = deviceTimeout
     }
     
     // MARK: API
@@ -50,7 +47,7 @@ final class DeviceManager {
         }
         requestInProgress = eventLoop.makePromise(of: DeviceResponse.self)
         socket.send(message.bytes, promise: nil)
-        eventLoop.scheduleTask(in: .seconds(deviceTimeout)) { [weak self] in
+        eventLoop.scheduleTask(in: .seconds(Config.deviceTimeout)) { [weak self] in
             guard let promise = self?.requestInProgress else {
                 return
             }

Sources/App/configure.swift

@@ -1,5 +1,4 @@
 import Vapor
-import Clairvoyant
 
 var deviceManager: DeviceManager!
 
@@ -10,46 +9,11 @@ enum ServerError: Error {
 
 // configures your application
 public func configure(_ app: Application) throws {
-    let storageFolder = URL(fileURLWithPath: app.directory.resourcesDirectory)
-    let logFolder = storageFolder.appendingPathComponent("logs")
-
-    let accessManager = AccessTokenManager([])
-    let monitor = MetricObserver(
-        logFolder: logFolder,
-        accessManager: accessManager,
-        logMetricId: "sesame.log")
-    MetricObserver.standard = monitor
-
-    let status = Metric<ServerStatus>("sesame.status")
-    status.update(.initializing)
-
-    monitor.registerRoutes(app)
-
-    let configUrl = storageFolder.appendingPathComponent("config.json")
-    let config = try Config(loadFrom: configUrl)
-
-    config.authenticationTokens.map { $0.data(using: .utf8)! }.forEach(accessManager.add)
-
-    app.http.server.configuration.port = config.port
-
-    let keyFile = storageFolder.appendingPathComponent(config.keyFileName)
-
-    let (deviceKey, remoteKey) = try loadKeys(at: keyFile)
-    deviceManager = DeviceManager(deviceKey: deviceKey, remoteKey: remoteKey, deviceTimeout: config.deviceTimeout)
-    try routes(app)
+    app.http.server.configuration.port = Config.port
     
-    // Gracefully shut down by closing potentially open socket
-    DispatchQueue.global(qos: .utility).asyncAfter(deadline: .now() + .seconds(5)) {
-        _ = app.server.onShutdown.always { _ in
-            deviceManager.removeDeviceConnection()
-        }
-    }
-
-    status.update(.nominal)
-}
-
-private func loadKeys(at url: URL) throws -> (deviceKey: Data, remoteKey: Data) {
-    let authContent: [Data] = try String(contentsOf: url)
+    let storageFolder = URL(fileURLWithPath: app.directory.resourcesDirectory)
+    let keyFile = storageFolder.appendingPathComponent(Config.keyFileName)
+    let authContent: [Data] = try String(contentsOf: keyFile)
         .trimmingCharacters(in: .whitespacesAndNewlines)
         .components(separatedBy: "\n")
         .map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
@@ -65,5 +29,15 @@ private func loadKeys(at url: URL) throws -> (deviceKey: Data, remoteKey: Data)
     guard authContent.count == 2 else {
         throw ServerError.invalidAuthenticationFileContent
     }
-    return (deviceKey: authContent[0], remoteKey: authContent[1])
+    let deviceKey = authContent[0]
+    let remoteKey = authContent[1]
+    deviceManager = DeviceManager(deviceKey: deviceKey, remoteKey: remoteKey)
+    try routes(app)
+    
+    // Gracefully shut down by closing potentially open socket
+    DispatchQueue.global(qos: .utility).asyncAfter(deadline: .now() + .seconds(5)) {
+        _ = app.server.onShutdown.always { _ in
+            deviceManager.removeDeviceConnection()
+        }
+    }
 }