Add Server-Side Download Queue (#21)

* test add queueing to file service

* further adjustments to download queueing

* add check for whether the request is still in the queue to CheckQueue

* forcefully release slot if download didn't finish in 15s

* actually cancel the delay task

* add metrics and refactor some of the request queue service

* refactor pathing

* reuse httpclient

* add queue request dto to requestfile, enqueue users immediately if a slot is available

* change startup to include all controllers

* update server pathing

* update pathing, again

* several adjustments to auth, banning, jwt server tokens, renaming, authorization

* update api I guess

* adjust automated banning of charaident and reg

* generate jwt on servers for internal authentication

* remove mvcextensions

Co-authored-by: rootdarkarchon <root.darkarchon@outlook.com>

MareSynchronosServer/MareSynchronosStaticFilesServer/Controllers/ServerFilesController.cs

@@ -0,0 +1,30 @@
+using MareSynchronos.API;
+using MareSynchronosShared.Utils;
+using MareSynchronosStaticFilesServer.Services;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace MareSynchronosStaticFilesServer.Controllers;
+
+[Route(MareFiles.ServerFiles)]
+public class ServerFilesController : ControllerBase
+{
+    private readonly CachedFileProvider _cachedFileProvider;
+
+    public ServerFilesController(ILogger<ServerFilesController> logger, CachedFileProvider cachedFileProvider, ServerTokenGenerator generator) : base(logger, generator)
+    {
+        _cachedFileProvider = cachedFileProvider;
+    }
+
+    [HttpGet(MareFiles.ServerFiles_Get + "/{fileId}")]
+    [Authorize(Policy = "Internal")]
+    public async Task<IActionResult> GetFile(string fileId)
+    {
+        _logger.LogInformation($"GetFile:{MareUser}:{fileId}");
+
+        var fs = _cachedFileProvider.GetLocalFileStream(fileId);
+        if (fs == null) return NotFound();
+
+        return File(fs, "application/octet-stream");
+    }
+}