rename namespace to be more accurate

3 files changed, 86 insertions, 0 deletions

diff --git a/src/SMAPI.Web/Framework/ClientPlatformDetection/ClientPlatformMiddleware.cs b/src/SMAPI.Web/Framework/ClientPlatformDetection/ClientPlatformMiddleware.cs
new file mode 100644
index 00000000..2430d239
--- /dev/null
+++ b/src/SMAPI.Web/Framework/ClientPlatformDetection/ClientPlatformMiddleware.cs
@@ -0,0 +1,52 @@
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+
+namespace StardewModdingAPI.Web.Framework.ClientPlatformDetection
+{
+    /// <summary>Middleware that detects the client's platform.</summary>
+    public class ClientPlatformMiddleware
+    {
+        /// <summary>The key used to retrieve the client's platform from <see cref="HttpContext.Items"/>.</summary>
+        public const string ClientPlatformKey = "ClientPlatformKey";
+
+        /// <summary>The next delegate in the middleware pipeline.</summary>
+        private readonly RequestDelegate Next;
+
+        /// <summary>Construct an instance.</summary>
+        /// <param name="next">The next delegate in the middleware pipeline.</param>
+        public ClientPlatformMiddleware(RequestDelegate next)
+        {
+            this.Next = next;
+        }
+
+        /// <summary>Invoke the middleware.</summary>
+        /// <param name="context">The HTTP request context.</param>
+        public async Task InvokeAsync(HttpContext context)
+        {
+            context.Items[ClientPlatformMiddleware.ClientPlatformKey] = this.DetectClientPlatform(context.Request.Headers["User-Agent"]);
+
+            await this.Next(context);
+        }
+
+        /// <summary>Detect the platform that the client is on.</summary>
+        /// <param name="userAgent">The client's user agent.</param>
+        /// <returns>The client's platform, or null if no platforms could be detected.</returns>
+        private Platform? DetectClientPlatform(string userAgent)
+        {
+            switch (userAgent)
+            {
+                case string ua when ua.Contains("Windows"):
+                    return Platform.Windows;
+                // check for Android before Linux because Android user agents also contain Linux
+                case string ua when ua.Contains("Android"):
+                    return Platform.Android;
+                case string ua when ua.Contains("Linux"):
+                    return Platform.Linux;
+                case string ua when ua.Contains("Mac"):
+                    return Platform.Mac;
+                default:
+                    return null;
+            }
+        }
+    }
+}
diff --git a/src/SMAPI.Web/Framework/ClientPlatformDetection/ClientPlatformMiddlewareExtensions.cs b/src/SMAPI.Web/Framework/ClientPlatformDetection/ClientPlatformMiddlewareExtensions.cs
new file mode 100644
index 00000000..274e5486
--- /dev/null
+++ b/src/SMAPI.Web/Framework/ClientPlatformDetection/ClientPlatformMiddlewareExtensions.cs
@@ -0,0 +1,16 @@
+using Microsoft.AspNetCore.Builder;
+
+namespace StardewModdingAPI.Web.Framework.ClientPlatformDetection
+{
+    /// <summary>Extension methods for the client platform middleware.</summary>
+    internal static class ClientPlatformMiddlewareExtensions
+    {
+        /// <summary>Adds client platform detection to the request pipeline.</summary>
+        /// <param name="builder">The application builder.</param>
+        /// <returns>The application builder with the client platform middleware enabled.</returns>
+        public static IApplicationBuilder UseClientPlatform(this IApplicationBuilder builder)
+        {
+            return builder.UseMiddleware<ClientPlatformMiddleware>();
+        }
+    }
+}
diff --git a/src/SMAPI.Web/Framework/ClientPlatformDetection/Platform.cs b/src/SMAPI.Web/Framework/ClientPlatformDetection/Platform.cs
new file mode 100644
index 00000000..2fe1d324
--- /dev/null
+++ b/src/SMAPI.Web/Framework/ClientPlatformDetection/Platform.cs
@@ -0,0 +1,18 @@
+namespace StardewModdingAPI.Web.Framework.ClientPlatformDetection
+{
+    /// <summary>A software platform.</summary>
+    public enum Platform
+    {
+        /// <summary>The Android platform.</summary>
+        Android,
+
+        /// <summary>The Linux platform.</summary>
+        Linux,
+
+        /// <summary>The Mac platform.</summary>
+        Mac,
+
+        /// <summary>The Windows platform.</summary>
+        Windows
+    }
+}