HTTPS redirect middleware for the Infrastructure package (#52)

Services/Website/Sources/Library/Public/Extensions/AbsoluteConfigKey+Constants.swift

@@ -58,6 +58,11 @@ extension AbsoluteConfigKey {
         /// The absolute configuration key for the server's name.
         public static let serverName: AbsoluteConfigKey = .init(.HTTP.serverName)
     }
+    /// A namespace for the HTTPS redirect configuration keys, as absolute keys.
+    public enum HTTPS {
+        /// The absolute configuration key for reading the visitor's original scheme from the `X-Forwarded-Proto` header.
+        public static let trustForwardedProto: AbsoluteConfigKey = .init(.HTTPS.trustForwardedProto)
+    }
     /// A namespace for the logging configuration keys, as absolute keys.
     public enum Log {
         /// The absolute configuration key for the minimum log level.

Services/Website/Sources/Library/Public/Extensions/ConfigKey+Constants.swift

@@ -58,6 +58,12 @@ extension ConfigKey {
         /// The configuration key for the server's name.
         public static let serverName: ConfigKey = "http.serverName"
     }
+    /// A namespace for the HTTPS redirect configuration keys.
+    public enum HTTPS {
+        /// The configuration key for reading the visitor's original scheme from the `X-Forwarded-Proto` header, redirecting the plain-HTTP
+        /// ones to the site origin (enable only behind a trusted proxy that sets the header).
+        public static let trustForwardedProto: ConfigKey = "https.trustForwardedProto"
+    }
     /// A namespace for the logging configuration keys.
     public enum Log {
         /// The configuration key for the minimum log level.