Added (yet untested) image handling. May or may not work.

CoviDok/Api/Request/ImageGet.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace CoviDok.Api.Request
+{
+    public class ImageGet
+    {
+        public string SessionID { get; set; }
+        public string ImageID { get; set; }
+    }
+}

CoviDok/Api/Request/ImagePost.cs

@@ -0,0 +1,14 @@
+using Microsoft.AspNetCore.Http;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace CoviDok.Api.Request
+{
+    public class ImagePost
+    {
+        public string SessionID { get; set; }
+        public IFormFile File { get; set; }
+    }
+}

CoviDok/BLL/MinioHandler.cs

@@ -2,6 +2,7 @@
 using Minio.Exceptions;
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
 
@@ -11,27 +12,16 @@ namespace CoviDok.BLL
     {
         private MinioClient Client = null;
 
-        public class MinioResult
+        public MinioHandler(string Host, string AccessKey, string SecretKey)
         {
-            bool Success;
-            string Data;
-
-            public MinioResult(bool Success, string Data)
-            {
-                this.Success = Success;
-                this.Data = Data;
-            }
+            //Client = new MinioClient(
+            //"192.168.0.160:9000",
+            //"secretaccesskey",
+            //"secretsecretkey");
+            Client = new MinioClient(Host, AccessKey, SecretKey);
         }
 
-        public MinioHandler()
-        {
-            Client = new MinioClient(
-                "192.168.0.160:9000",
-                "secretaccesskey",
-                "secretsecretkey");
-        }
-
-        public async Task<MinioResult> Upload(string BucketName, string FilePath, string ObjectName)
+        public async Task<MinioResult> UploadImage(string BucketName, Stream FilePath, long size, string ObjectName)
         {
             try
             {
@@ -42,7 +32,7 @@ namespace CoviDok.BLL
                     await Client.MakeBucketAsync(BucketName);
                 }
                 // Upload a file to bucket.
-                await Client.PutObjectAsync(BucketName, ObjectName, FilePath);
+                await Client.PutObjectAsync(BucketName, ObjectName, FilePath, size);
                 return new MinioResult(true, BucketName + ":" + ObjectName);
             }
             catch (MinioException e)
@@ -51,17 +41,10 @@ namespace CoviDok.BLL
             }
         }
 
-        public async Task<MinioResult> GetImage(string BucketName, string FilePath, string ObjectName)
+        public async Task GetImage(string ImageID, Action<Stream> callback)
         {
-            try
-            {
-                await Client.GetObjectAsync(BucketName, ObjectName, FilePath);
-                return new MinioResult(true, FilePath);
-            }
-            catch (MinioException e)
-            {
-                return new MinioResult(false, e.Message);
-            }
+            string[] attrs = ImageID.Split(":");
+            await Client.GetObjectAsync(attrs[0], attrs[1], callback);
         }
     }
 }

CoviDok/BLL/MinioResult.cs

@@ -0,0 +1,14 @@
+namespace CoviDok.BLL
+{
+    public class MinioResult
+    {
+        public readonly bool Success;
+        public readonly string Data;
+
+        public MinioResult(bool Success, string Data)
+        {
+            this.Success = Success;
+            this.Data = Data;
+        }
+    }
+}

CoviDok/Controllers/ImagesController.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using CoviDok.Api;
+using CoviDok.Api.Request;
+using CoviDok.BLL;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+
+namespace CoviDok.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class ImagesController : ControllerBase
+    {
+        private MinioHandler MinioHandler = new MinioHandler(
+            "192.168.0.160:9000",
+            "secretaccesskey",
+            "secretsecretkey");
+        private readonly string BucketName = "test1";
+
+        [HttpPost]
+        public async Task<GenericResponse> OnPostImage(ImagePost post)
+        {
+            GenericResponse response = new GenericResponse();
+            if (post.SessionID != "a")
+            {
+                response.Status = Status.Error;
+                response.Body["reason"] = "unauthorized";
+                return response;
+            }
+            
+            MinioResult Result = await MinioHandler.UploadImage(BucketName, post.File.OpenReadStream(), post.File.Length, post.File.FileName);
+            if (!Result.Success) response.Status = Status.Error;
+            response.Body["reason"] = Result.Data;
+
+            return response;
+        }
+
+        public async Task<IActionResult> OnGetImage(ImageGet imageGet)
+        {
+            string[] attrs = imageGet.ImageID.Split(":");
+            if (attrs.Length != 2) return BadRequest();
+            
+            FileStreamResult res = null; ;
+            await MinioHandler.GetImage(imageGet.ImageID, (stream) => {
+                res = File(stream, attrs[1]);
+            });
+            return res;
+        }
+    }
+}