Add Tencent Cloud object storage support

BotSharp.sln

@@ -101,6 +101,10 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BotSharp.Plugin.FileHandler
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BotSharp.Plugin.Planner", "src\Plugins\BotSharp.Plugin.Planner\BotSharp.Plugin.Planner.csproj", "{54E83C6F-54EE-4ADC-8D72-93C009CC4FB4}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "FileStorages", "FileStorages", "{38B37C0D-1930-4D47-BCBF-E358EC1096B1}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BotSharp.Plugin.TencentCos", "src\Plugins\BotSharp.Plugin.TencentCos\BotSharp.Plugin.TencentCos.csproj", "{BF029B0A-768B-43A1-8D91-E70B95505716}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -413,6 +417,14 @@ Global
 		{54E83C6F-54EE-4ADC-8D72-93C009CC4FB4}.Release|Any CPU.Build.0 = Release|Any CPU
 		{54E83C6F-54EE-4ADC-8D72-93C009CC4FB4}.Release|x64.ActiveCfg = Release|Any CPU
 		{54E83C6F-54EE-4ADC-8D72-93C009CC4FB4}.Release|x64.Build.0 = Release|Any CPU
+		{BF029B0A-768B-43A1-8D91-E70B95505716}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{BF029B0A-768B-43A1-8D91-E70B95505716}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{BF029B0A-768B-43A1-8D91-E70B95505716}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{BF029B0A-768B-43A1-8D91-E70B95505716}.Debug|x64.Build.0 = Debug|Any CPU
+		{BF029B0A-768B-43A1-8D91-E70B95505716}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{BF029B0A-768B-43A1-8D91-E70B95505716}.Release|Any CPU.Build.0 = Release|Any CPU
+		{BF029B0A-768B-43A1-8D91-E70B95505716}.Release|x64.ActiveCfg = Release|Any CPU
+		{BF029B0A-768B-43A1-8D91-E70B95505716}.Release|x64.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -461,6 +473,8 @@ Global
 		{A72B3BEB-E14B-4917-BE44-97EAE4E122D2} = {51AFE054-AE99-497D-A593-69BAEFB5106F}
 		{D6A99D4F-6248-419E-8A43-B38ADEBABA2C} = {51AFE054-AE99-497D-A593-69BAEFB5106F}
 		{54E83C6F-54EE-4ADC-8D72-93C009CC4FB4} = {51AFE054-AE99-497D-A593-69BAEFB5106F}
+		{38B37C0D-1930-4D47-BCBF-E358EC1096B1} = {2635EC9B-2E5F-4313-AC21-0B847F31F36C}
+		{BF029B0A-768B-43A1-8D91-E70B95505716} = {38B37C0D-1930-4D47-BCBF-E358EC1096B1}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {A9969D89-C98B-40A5-A12B-FC87E55B3A19}

src/Infrastructure/BotSharp.Abstraction/Files/Enums/FileStorageEnum.cs

@@ -0,0 +1,9 @@
+namespace BotSharp.Abstraction.Repositories.Enums;
+
+public static class FileStorageEnum
+{
+    public const string LocalFileStorage = nameof(LocalFileStorage);
+    public const string AmazonS3Storage = nameof(AmazonS3Storage);
+    public const string AzureBlobStorage = nameof(AzureBlobStorage);
+    public const string TencentCosStorage = nameof(TencentCosStorage);
+}

src/Infrastructure/BotSharp.Abstraction/Files/FileStorageSettings.cs

@@ -0,0 +1,6 @@
+namespace BotSharp.Abstraction.Files;
+
+public class FileStorageSettings
+{
+    public string Default { get; set; }
+}

src/Infrastructure/BotSharp.Abstraction/Files/IBotSharpFileService.cs

@@ -1,3 +1,5 @@
+using System.IO;
+
 namespace BotSharp.Abstraction.Files;
 
 public interface IBotSharpFileService
@@ -74,5 +76,7 @@ Task<IEnumerable<MessageFileModel>> GetChatFiles(string conversationId, string s
     (string, byte[]) GetFileInfoFromData(string data);
     string GetDirectory(string conversationId);
     string GetFileContentType(string filePath);
+    byte[] GetFileBytes(string fileStorageUrl);
+    bool SavefileToPath(string filePath, Stream stream);
     #endregion
 }

src/Infrastructure/BotSharp.Core/BotSharp.Core.csproj

@@ -171,7 +171,7 @@
     <PackageReference Include="Aspects.Cache" Version="2.0.4" />
     <PackageReference Include="DistributedLock.Redis" Version="1.0.3" />
     <PackageReference Include="EntityFrameworkCore.BootKit" Version="8.5.0" />
-    <PackageReference Include="Fluid.Core" Version="2.8.0" />
+    <PackageReference Include="Fluid.Core" Version="2.11.1" />
     <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="8.0.0" />
     <PackageReference Include="Nanoid" Version="3.1.0" />

src/Infrastructure/BotSharp.Core/Files/FilePlugin.cs

@@ -1,3 +1,4 @@
+using BotSharp.Abstraction.Repositories.Enums;
 using BotSharp.Core.Files.Services;
 using Microsoft.Extensions.Configuration;
 
@@ -14,6 +15,12 @@ public class FilePlugin : IBotSharpPlugin
 
     public void RegisterDI(IServiceCollection services, IConfiguration config)
     {
-        services.AddScoped<IBotSharpFileService, BotSharpFileService>();
+        var myFileStorageSettings = new FileStorageSettings();
+        config.Bind("FileStorage", myFileStorageSettings);
+
+        if (myFileStorageSettings.Default == FileStorageEnum.LocalFileStorage)
+        {
+            services.AddScoped<IBotSharpFileService, BotSharpFileService>();
+        }
     }
 }

src/Infrastructure/BotSharp.Core/Files/Services/BotSharpFileService.Common.cs

@@ -43,4 +43,21 @@ public string GetFileContentType(string filePath)
 
         return contentType;
     }
+
+    public byte[] GetFileBytes(string fileStorageUrl)
+    {
+        using var stream = File.OpenRead(fileStorageUrl);
+        var bytes = new byte[stream.Length];
+        stream.Read(bytes, 0, (int)stream.Length);
+        return bytes;
+    }
+
+    public bool SavefileToPath(string filePath, Stream stream)
+    {
+        using (var fileStream = new FileStream(filePath, FileMode.Create))
+        {
+            stream.CopyTo(fileStream);
+        }
+        return true;
+    }
 }

src/Infrastructure/BotSharp.OpenAPI/Controllers/ConversationController.cs

@@ -356,10 +356,7 @@ public IActionResult UploadAttachments([FromRoute] string conversationId,
                 var fileName = ContentDispositionHeaderValue.Parse(file.ContentDisposition).FileName.Trim('"');
                 var filePath = Path.Combine(dir, fileName);
 
-                using (var stream = new FileStream(filePath, FileMode.Create))
-                {
-                    file.CopyTo(stream);
-                }
+                fileService.SavefileToPath(filePath, file.OpenReadStream());
             }
 
             return Ok(new { message = "File uploaded successfully." });

src/Infrastructure/BotSharp.OpenAPI/Controllers/UserController.cs

@@ -158,9 +158,8 @@ public IActionResult GetUserAvatar()
     #region Private methods
     private FileContentResult BuildFileResult(string file)
     {
-        using Stream stream = System.IO.File.Open(file, FileMode.Open, FileAccess.Read, FileShare.Read);
-        var bytes = new byte[stream.Length];
-        stream.Read(bytes, 0, (int)stream.Length);
+        var fileService = _services.GetRequiredService<IBotSharpFileService>();
+        var bytes = fileService.GetFileBytes(file);
         return File(bytes, "application/octet-stream", Path.GetFileName(file));
     }
     #endregion

src/Plugins/BotSharp.Plugin.TencentCos/BotSharp.Plugin.TencentCos.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>$(TargetFramework)</TargetFramework>
+    <LangVersion>$(LangVersion)</LangVersion>
+    <Nullable>enable</Nullable>
+    <VersionPrefix>$(BotSharpVersion)</VersionPrefix>
+    <GeneratePackageOnBuild>$(GeneratePackageOnBuild)</GeneratePackageOnBuild>
+    <GenerateDocumentationFile>$(GenerateDocumentationFile)</GenerateDocumentationFile>
+    <OutputPath>$(SolutionDir)packages</OutputPath>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Tencent.QCloud.Cos.Sdk" Version="5.4.39" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\Infrastructure\BotSharp.Core\BotSharp.Core.csproj" />
+  </ItemGroup>
+
+</Project>