92 lines
2.8 KiB
Swift
Executable File
92 lines
2.8 KiB
Swift
Executable File
import Vapor
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import Clairvoyant
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var deviceManager: DeviceManager!
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enum ServerError: Error {
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case invalidAuthenticationFileContent
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case invalidAuthenticationToken
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}
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private let dateFormatter: DateFormatter = {
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let df = DateFormatter()
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df.dateStyle = .short
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df.timeStyle = .short
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return df
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}()
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// configures your application
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public func configure(_ app: Application) async throws {
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let storageFolder = URL(fileURLWithPath: app.directory.resourcesDirectory)
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let logFolder = storageFolder.appendingPathComponent("logs")
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let accessManager = AccessTokenManager([])
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let monitor = await MetricObserver(
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logFolder: logFolder,
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accessManager: accessManager,
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logMetricId: "sesame.log")
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MetricObserver.standard = monitor
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let status = try await Metric<ServerStatus>("sesame.status")
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try await status.update(.initializing)
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await monitor.registerRoutes(app)
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let configUrl = storageFolder.appendingPathComponent("config.json")
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let config = try Config(loadFrom: configUrl)
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config.authenticationTokens.map { $0.data(using: .utf8)! }.forEach(accessManager.add)
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app.http.server.configuration.port = config.port
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let keyFile = storageFolder.appendingPathComponent(config.keyFileName)
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let (deviceKey, remoteKey) = try loadKeys(at: keyFile)
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deviceManager = await DeviceManager(
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deviceKey: deviceKey,
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remoteKey: remoteKey,
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deviceTimeout: config.deviceTimeout)
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try routes(app)
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// Gracefully shut down by closing potentially open socket
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DispatchQueue.global(qos: .utility).asyncAfter(deadline: .now() + .seconds(5)) {
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_ = app.server.onShutdown.always { _ in
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deviceManager.removeDeviceConnection()
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}
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}
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try await status.update(.nominal)
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print("[\(dateFormatter.string(from: Date()))] Server started")
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}
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private func loadKeys(at url: URL) throws -> (deviceKey: Data, remoteKey: Data) {
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let authContent: [Data] = try String(contentsOf: url)
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.trimmingCharacters(in: .whitespacesAndNewlines)
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.components(separatedBy: "\n")
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.map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
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.map {
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guard let key = Data(fromHexEncodedString: $0) else {
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throw ServerError.invalidAuthenticationToken
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}
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guard key.count == SHA256.byteCount else {
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throw ServerError.invalidAuthenticationToken
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}
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return key
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}
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guard authContent.count == 2 else {
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throw ServerError.invalidAuthenticationFileContent
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}
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return (deviceKey: authContent[0], remoteKey: authContent[1])
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}
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func log(_ message: String) {
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guard let observer = MetricObserver.standard else {
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print(message)
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return
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}
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Task {
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await observer.log(message)
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}
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}
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