Thumbnail feature.

APIControllers/PictureUpload.cs

@@ -1,6 +1,6 @@
 using Microsoft.AspNetCore.Mvc;
 using NeDvachAPI.DBControllers;
-
+using SkiaSharp;
 
 namespace NeDvachAPI.Controllers
 {
@@ -13,19 +13,46 @@ namespace NeDvachAPI.Controllers
         [HttpPost(Name = "UploadPicture")]
         public async Task<JsonResult> ReceivePost([FromForm] IFormFile PostPicture)
         {
-            var supportedTypes = new[] { "jpg", "png" };
+            var supportedTypes = new[] { ".jpg", ".png", ".jpeg" };
             string receivedFileName = PostPicture.FileName;
-            string fileExt = receivedFileName.Substring((receivedFileName.Length) - 3, 3);
-            if (supportedTypes.Contains(fileExt.ToLower()))  //file type check
+            string fName = Path.GetFileNameWithoutExtension(receivedFileName);
+            string fExtention = Path.GetExtension(receivedFileName);
+            string previevFileName = fName + 's' + fExtention;
+
+            Console.WriteLine("Расширение файла: " + fExtention);
+
+            if (supportedTypes.Contains(fExtention.ToLower()))  //file type check
             {
                 ///Local Buffer File Part
                 string filePath;
+                string previevPath;
                 filePath = Directory.GetCurrentDirectory() + "\\Buffer\\" + receivedFileName;
+                previevPath = Directory.GetCurrentDirectory() + "\\Buffer\\" + previevFileName;
                 Stream picBuffer = new FileStream(filePath, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                 PostPicture.CopyTo(picBuffer);
                 picBuffer.Close();
+                ///resize part
+
+                bool resizeImage(string picPath, string smallPath, int width, int height)
+                {
+                    var dstInfo = new SKImageInfo(height, width);
+                    var bitmap = SKBitmap.Decode(picPath);
+
+                    var image = SKImage.FromBitmap(bitmap.Resize(dstInfo, SKFilterQuality.Medium));
+                    var data = image.Encode(SKEncodedImageFormat.Jpeg, 90);
+
+                    using (var stream = new FileStream(smallPath, FileMode.Create, FileAccess.Write))
+                        data.SaveTo(stream);
+
+                    data.Dispose();
+                    image.Dispose();
+                    bitmap.Dispose();
+                    return true;
+                }
+                resizeImage(filePath, previevPath, 300, 400);
                 ///MinIo part
-                JsonResult picAdress = new(await MinIOchat.PictureUpload(filePath, receivedFileName));
+                await MinIOchat.PictureUpload(previevPath, receivedFileName, "thread-pics-small");
+                JsonResult picAdress = new(await MinIOchat.PictureUpload(filePath, receivedFileName, "thread-pics"));
                 Console.WriteLine("Загружен файл:" + "http://static.vdk2ch.ru:15555/thread-pics/" + receivedFileName);
                 return picAdress;
             }

AuthInfo.cs

@@ -5,7 +5,7 @@
         public class MinIo
         {
             public static string endpoint = "static.vdk2ch.ru:15555";
-            public static string bucketName = "thread-pics";
+            public static string bucketName = "thread-pics thread-pics-small";
             public static string username = "admin";
             public static string password = "password2ch";
         }

DBControllers/MinIOchat.cs

@@ -7,7 +7,7 @@ namespace NeDvachAPI.DBControllers
 {
     public class MinIOchat
     {
-        public static async Task<JsonResult> PictureUpload(string fileroute, string filename)
+        public static async Task<JsonResult> PictureUpload(string fileroute, string filename, string bucket)
         {
             MinioClient DvachIo = new MinioClient()
                                   .WithEndpoint(AuthInfo.MinIo.endpoint)
@@ -20,7 +20,7 @@ namespace NeDvachAPI.DBControllers
             aesEncryption.GenerateKey();
             var ssec = new SSEC(aesEncryption.Key);
             PutObjectArgs putObjectArgs = new PutObjectArgs()
-                                              .WithBucket(AuthInfo.MinIo.bucketName)
+                                              .WithBucket(bucket)
                                               .WithObject(filename)
                                               .WithFileName(fileroute)
                                               .WithContentType("image/png");

NeDvachAPI.csproj

@@ -10,7 +10,13 @@
     <PackageReference Include="Microsoft.AspNet.WebApi.Core" Version="5.2.9" />
     <PackageReference Include="Minio" Version="4.0.6" />
     <PackageReference Include="Npgsql" Version="6.0.7" />
+    <PackageReference Include="SkiaSharp" Version="2.88.3" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.2.3" />
+    <PackageReference Include="System.Drawing.Common" Version="7.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Buffer\" />
   </ItemGroup>
 
 </Project>