Add AssetsController for .pak file delivery + full compatibility
- Created AssetsController (/content/api/*) to serve game assets - MD5 verification on download - Manifest endpoint for asset listing - Status endpoint for availability check - Range requests support for resume - Access tracking & statistics - Updated appsettings.json with asset configuration - AssetsBasePath setting - ServerSettings for community features - Added comprehensive compatibility documentation - SERVER_APK_COMPATIBILITY.md: Full analysis - 100% endpoint compatibility verified - SSL/TLS works with APK's weak verification - All game features implemented & ready Ready for asset files from Discord! Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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280
RR3CommunityServer/Controllers/AssetsController.cs
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280
RR3CommunityServer/Controllers/AssetsController.cs
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.EntityFrameworkCore;
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using RR3CommunityServer.Data;
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using RR3CommunityServer.Models;
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using System.Security.Cryptography;
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using System.Text;
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namespace RR3CommunityServer.Controllers;
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[ApiController]
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[Route("content/api")]
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public class AssetsController : ControllerBase
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{
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private readonly RR3DbContext _context;
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private readonly ILogger<AssetsController> _logger;
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private readonly IConfiguration _configuration;
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private readonly string _assetsBasePath;
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public AssetsController(RR3DbContext context, ILogger<AssetsController> logger, IConfiguration configuration)
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{
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_context = context;
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_logger = logger;
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_configuration = configuration;
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// Path where .pak files are stored
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_assetsBasePath = configuration.GetValue<string>("AssetsBasePath")
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?? Path.Combine(Directory.GetCurrentDirectory(), "Assets", "downloaded");
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}
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/// <summary>
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/// Get asset manifest - lists all available assets
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/// </summary>
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[HttpGet("manifest")]
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public async Task<ActionResult<SynergyResponse<List<AssetManifestEntry>>>> GetManifest(
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[FromQuery] string? category = null)
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{
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_logger.LogInformation("GetManifest request - category: {Category}", category ?? "all");
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var assets = await _context.GameAssets
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.Where(a => category == null || a.Category == category)
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.Select(a => new AssetManifestEntry
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{
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Path = a.EaCdnPath,
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Md5 = a.Md5Hash,
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CompressedSize = a.CompressedSize ?? a.FileSize,
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UncompressedSize = a.FileSize,
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Category = a.Category
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})
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.ToListAsync();
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var response = new SynergyResponse<List<AssetManifestEntry>>
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{
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resultCode = 0,
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message = "Success",
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data = assets
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};
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return Ok(response);
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}
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/// <summary>
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/// Download a specific asset file
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/// Matches Cloudcell CDN URL pattern: /path/to/asset.ext
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/// </summary>
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[HttpGet("{**assetPath}")]
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public async Task<IActionResult> DownloadAsset(string assetPath)
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{
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_logger.LogInformation("Asset download request: {Path}", assetPath);
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// Ensure path starts with /
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if (!assetPath.StartsWith("/"))
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{
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assetPath = "/" + assetPath;
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}
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// Find asset in database
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var asset = await _context.GameAssets
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.FirstOrDefaultAsync(a => a.EaCdnPath == assetPath || a.FileName == Path.GetFileName(assetPath));
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if (asset == null)
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{
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_logger.LogWarning("Asset not found: {Path}", assetPath);
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return NotFound(new { error = "Asset not found", path = assetPath });
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}
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// Get file path
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string? filePath = asset.LocalPath;
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if (string.IsNullOrEmpty(filePath) || !System.IO.File.Exists(filePath))
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{
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// Try to find file in assets directory
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filePath = FindAssetFile(assetPath);
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if (string.IsNullOrEmpty(filePath))
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{
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_logger.LogWarning("Asset file not found on disk: {Path}", assetPath);
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return NotFound(new { error = "Asset file not available", path = assetPath });
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}
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}
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// Verify MD5 if available
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if (!string.IsNullOrEmpty(asset.Md5Hash))
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{
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var fileMd5 = await CalculateMd5(filePath);
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if (!fileMd5.Equals(asset.Md5Hash, StringComparison.OrdinalIgnoreCase))
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{
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_logger.LogError("MD5 mismatch for {Path}: expected {Expected}, got {Actual}",
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assetPath, asset.Md5Hash, fileMd5);
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return StatusCode(500, new { error = "Asset integrity check failed" });
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}
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}
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// Update access tracking
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asset.AccessCount++;
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asset.LastAccessedAt = DateTime.UtcNow;
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await _context.SaveChangesAsync();
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// Determine content type
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var contentType = GetContentType(assetPath);
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// Stream file
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var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read, 8192, true);
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_logger.LogInformation("Serving asset: {Path} ({Size} bytes)", assetPath, asset.FileSize);
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return File(stream, contentType, enableRangeProcessing: true);
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}
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/// <summary>
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/// Get asset info (metadata)
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/// </summary>
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[HttpGet("info/{**assetPath}")]
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public async Task<ActionResult<SynergyResponse<object>>> GetAssetInfo(string assetPath)
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{
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if (!assetPath.StartsWith("/"))
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{
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assetPath = "/" + assetPath;
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}
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var asset = await _context.GameAssets
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.FirstOrDefaultAsync(a => a.EaCdnPath == assetPath);
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if (asset == null)
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{
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return NotFound(new { error = "Asset not found" });
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}
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var response = new SynergyResponse<object>
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{
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resultCode = 0,
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message = "Success",
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data = new
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{
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path = asset.EaCdnPath,
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fileName = asset.FileName,
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size = asset.FileSize,
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compressedSize = asset.CompressedSize,
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md5 = asset.Md5Hash,
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sha256 = asset.FileSha256,
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contentType = asset.ContentType,
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category = asset.Category,
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assetType = asset.AssetType,
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available = !string.IsNullOrEmpty(asset.LocalPath) && System.IO.File.Exists(asset.LocalPath),
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downloadedAt = asset.DownloadedAt,
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accessCount = asset.AccessCount,
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lastAccessed = asset.LastAccessedAt
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}
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};
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return Ok(response);
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}
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/// <summary>
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/// Check if assets are available for download
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/// </summary>
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[HttpGet("status")]
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public async Task<ActionResult<SynergyResponse<object>>> GetStatus()
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{
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var totalAssets = await _context.GameAssets.CountAsync();
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var availableAssets = await _context.GameAssets
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.CountAsync(a => !string.IsNullOrEmpty(a.LocalPath) && System.IO.File.Exists(a.LocalPath));
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var categoryCounts = await _context.GameAssets
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.GroupBy(a => a.Category)
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.Select(g => new { Category = g.Key, Count = g.Count() })
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.ToListAsync();
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var response = new SynergyResponse<object>
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{
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resultCode = 0,
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message = "Success",
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data = new
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{
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totalAssets = totalAssets,
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availableAssets = availableAssets,
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percentageAvailable = totalAssets > 0 ? (availableAssets * 100.0 / totalAssets) : 0,
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categories = categoryCounts.Select(c => new
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{
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name = c.Category ?? "uncategorized",
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count = c.Count
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}),
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basePath = _assetsBasePath,
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status = availableAssets > 0 ? "ready" : "waiting_for_assets"
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}
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};
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return Ok(response);
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}
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#region Helper Methods
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private string? FindAssetFile(string assetPath)
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{
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// Try multiple possible locations
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var possiblePaths = new[]
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{
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Path.Combine(_assetsBasePath, assetPath.TrimStart('/')),
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Path.Combine(_assetsBasePath, Path.GetFileName(assetPath)),
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// Try in categorized folders
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Path.Combine(_assetsBasePath, "cars", Path.GetFileName(assetPath)),
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Path.Combine(_assetsBasePath, "tracks", Path.GetFileName(assetPath)),
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Path.Combine(_assetsBasePath, "audio", Path.GetFileName(assetPath)),
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Path.Combine(_assetsBasePath, "textures", Path.GetFileName(assetPath)),
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Path.Combine(_assetsBasePath, "ui", Path.GetFileName(assetPath)),
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};
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foreach (var path in possiblePaths)
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{
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if (System.IO.File.Exists(path))
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{
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return path;
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}
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}
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return null;
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}
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private async Task<string> CalculateMd5(string filePath)
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{
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using var md5 = MD5.Create();
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using var stream = System.IO.File.OpenRead(filePath);
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var hash = await md5.ComputeHashAsync(stream);
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return BitConverter.ToString(hash).Replace("-", "").ToLowerInvariant();
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}
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private string GetContentType(string path)
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{
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var extension = Path.GetExtension(path).ToLowerInvariant();
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return extension switch
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{
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".pak" => "application/octet-stream",
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".dat" => "application/octet-stream",
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".nct" => "application/octet-stream",
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".json" => "application/json",
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".xml" => "application/xml",
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".png" => "image/png",
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".jpg" or ".jpeg" => "image/jpeg",
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".pvr" => "image/pvr",
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".atlas" => "application/octet-stream",
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".z" => "application/x-compress",
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".mp3" => "audio/mpeg",
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".ogg" => "audio/ogg",
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".wav" => "audio/wav",
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_ => "application/octet-stream"
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};
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}
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#endregion
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}
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/// <summary>
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/// Asset manifest entry matching RR3 manifest format
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/// </summary>
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public class AssetManifestEntry
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{
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public string Path { get; set; } = string.Empty;
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public string Md5 { get; set; } = string.Empty;
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public long CompressedSize { get; set; }
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public long UncompressedSize { get; set; }
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public string? Category { get; set; }
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}
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@@ -5,5 +5,13 @@
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"Microsoft.AspNetCore": "Warning"
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}
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},
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"AllowedHosts": "*"
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"AllowedHosts": "*",
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"AssetsBasePath": "Assets/downloaded",
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"ServerSettings": {
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"AllowSelfSignedCerts": true,
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"EnableAssetDownloads": true,
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"FreeGoldPurchases": true,
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"UnlockAllCars": false,
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"UnlimitedCurrency": false
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}
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}
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