COVIDSafe code from version 1.1

CovidSafe/API/CovidNetworking.swift

@@ -0,0 +1,47 @@
+//
+//  CovidNetworking.swift
+//  CovidSafe
+//
+//  Copyright © 2020 Australian Government. All rights reserved.
+//
+
+import Foundation
+import Alamofire
+
+final class CovidServerTrustManager: ServerTrustManager {
+    override func serverTrustEvaluator(forHost host: String) throws -> ServerTrustEvaluating? {
+        guard let evaluator = evaluators[host] else {
+            for key in evaluators.keys {
+                if (host.hasSuffix(key)) {
+                    return evaluators[key]
+                }
+            }
+            if allHostsMustBeEvaluated {
+                throw AFError.serverTrustEvaluationFailed(reason: .noRequiredEvaluator(host: host))
+            }
+
+            return nil
+        }
+        return evaluator
+    }
+}
+
+class CovidNetworking {
+    static private let validCerts = [CovidCertificates.AmazonRootCA1, CovidCertificates.AmazonRootCA2, CovidCertificates.AmazonRootCA3, CovidCertificates.AmazonRootCA4, CovidCertificates.SFSRootCA]
+    private let evaluators = [
+        "covidsafe.gov.au": PinnedCertificatesTrustEvaluator(certificates: CovidNetworking.validCerts)
+    ]
+    
+    static let shared = CovidNetworking()
+    public let session: Session
+    
+    init() {
+        let serverTrustPolicy = CovidServerTrustManager(evaluators: evaluators)
+        session = Session(serverTrustManager:serverTrustPolicy)
+    }
+}
+
+enum APIError: Error {
+    case ExpireSession
+    case ServerError
+}