509 lines
11 KiB
C#
509 lines
11 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using Facepunch.Steamworks;
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using JetBrains.Annotations;
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using Zio;
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using Zio.FileSystems;
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namespace RoR2;
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public class SteamworksRemoteStorageFileSystem : FileSystem
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{
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private struct SteamworksRemoteStoragePath : IEquatable<SteamworksRemoteStoragePath>
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{
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public readonly string str;
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public SteamworksRemoteStoragePath(string path)
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{
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str = path;
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}
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public static implicit operator SteamworksRemoteStoragePath(string str)
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{
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return new SteamworksRemoteStoragePath(str);
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}
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public bool Equals(SteamworksRemoteStoragePath other)
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{
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return string.Equals(str, other.str);
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}
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public override bool Equals(object obj)
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{
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if (obj == null)
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{
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return false;
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}
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if (obj is SteamworksRemoteStoragePath other)
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{
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return Equals(other);
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}
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return false;
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}
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public override int GetHashCode()
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{
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if (str == null)
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{
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return 0;
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}
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return str.GetHashCode();
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}
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}
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private class Node
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{
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public readonly UPath path;
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public Node parent;
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public Node(UPath path)
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{
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this.path = path.ToAbsolute();
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}
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}
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private class FileNode : Node
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{
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public readonly SteamworksRemoteStoragePath steamworksRemoteStoragePath;
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private RemoteFile file => remoteStorage.OpenFile(steamworksRemoteStoragePath.str);
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public FileNode(SteamworksRemoteStoragePath steamworksRemoteStoragePath)
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: base(steamworksRemoteStoragePath.str)
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{
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this.steamworksRemoteStoragePath = steamworksRemoteStoragePath;
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}
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public int GetLength()
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{
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return file.SizeInBytes;
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}
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public Stream OpenWrite()
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{
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return file.OpenWrite();
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}
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public Stream OpenRead()
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{
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return file.OpenRead();
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}
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public void Delete()
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{
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file.Delete();
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}
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}
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private class DirectoryNode : Node
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{
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private Node[] childNodes = Array.Empty<Node>();
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public int childCount { get; private set; }
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public Node GetChild(int i)
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{
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return childNodes[i];
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}
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public void AddChild(Node node)
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{
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int num = childCount + 1;
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childCount = num;
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if (childCount > childNodes.Length)
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{
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Array.Resize(ref childNodes, childCount);
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}
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childNodes[childCount - 1] = node;
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node.parent = this;
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}
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public void RemoveChildAt(int i)
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{
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if (childCount > 0)
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{
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childNodes[i].parent = null;
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}
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int num = childCount - 1;
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while (i < num)
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{
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childNodes[i] = childNodes[i + 1];
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i++;
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}
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if (childCount > 0)
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{
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childNodes[childCount - 1] = null;
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}
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int num2 = childCount - 1;
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childCount = num2;
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}
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public void RemoveChild(Node node)
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{
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int num = Array.IndexOf(childNodes, node);
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if (num >= 0)
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{
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RemoveChildAt(num);
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}
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}
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public void RemoveAllChildren()
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{
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for (int i = 0; i < childCount; i++)
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{
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childNodes[i].parent = null;
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childNodes[i] = null;
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}
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childCount = 0;
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}
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public DirectoryNode(UPath path)
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: base(path)
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{
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}
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}
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private static readonly object globalLock = new object();
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private string[] allFilePaths = Array.Empty<string>();
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private readonly DirectoryNode rootNode = new DirectoryNode(UPath.Root);
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private readonly Dictionary<UPath, Node> pathToNodeMap = new Dictionary<UPath, Node>();
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private bool treeIsDirty = true;
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private static Client steamworksClient => Client.Instance;
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private static RemoteStorage remoteStorage => steamworksClient.RemoteStorage;
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public SteamworksRemoteStorageFileSystem()
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{
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pathToNodeMap[UPath.Root] = rootNode;
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}
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protected override void CreateDirectoryImpl(UPath path)
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{
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}
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protected override bool DirectoryExistsImpl(UPath path)
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{
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return true;
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}
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protected override void MoveDirectoryImpl(UPath srcPath, UPath destPath)
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{
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treeIsDirty = true;
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throw new NotImplementedException();
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}
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protected override void DeleteDirectoryImpl(UPath path, bool isRecursive)
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{
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throw new NotImplementedException();
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}
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protected override void CopyFileImpl(UPath srcPath, UPath destPath, bool overwrite)
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{
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treeIsDirty = true;
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throw new NotImplementedException();
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}
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protected override void ReplaceFileImpl(UPath srcPath, UPath destPath, UPath destBackupPath, bool ignoreMetadataErrors)
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{
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throw new NotImplementedException();
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}
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protected override long GetFileLengthImpl(UPath path)
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{
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int num = 0;
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EnterFileSystemShared();
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try
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{
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UpdateDirectories();
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num = GetFileNode(path)?.GetLength() ?? 0;
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}
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finally
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{
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ExitFileSystemShared();
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}
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return num;
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}
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protected override bool FileExistsImpl(UPath path)
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{
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UpdateDirectories();
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return GetFileNode(path) != null;
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}
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protected override void MoveFileImpl(UPath srcPath, UPath destPath)
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{
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treeIsDirty = true;
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throw new NotImplementedException();
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}
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protected override void DeleteFileImpl(UPath path)
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{
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EnterFileSystemShared();
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try
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{
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treeIsDirty = true;
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GetFileNode(path)?.Delete();
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}
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finally
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{
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ExitFileSystemShared();
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}
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}
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protected override Stream OpenFileImpl(UPath path, FileMode mode, FileAccess access, FileShare share)
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{
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EnterFileSystemShared();
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if (!path.IsAbsolute)
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{
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throw new ArgumentException(string.Format("'{0}' must be absolute. {0} = {1}", "path", path));
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}
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try
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{
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bool flag = false;
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switch (mode)
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{
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case FileMode.Append:
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throw new NotImplementedException();
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case FileMode.Create:
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flag = true;
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break;
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case FileMode.CreateNew:
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flag = true;
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break;
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}
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if (flag && access == FileAccess.Write)
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{
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treeIsDirty = true;
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return remoteStorage.CreateFile(path.ToRelative().FullName).OpenWrite();
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}
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return access switch
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{
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FileAccess.Read => GetFileNode(path)?.OpenRead(),
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FileAccess.Write => GetFileNode(path)?.OpenWrite(),
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_ => throw new NotImplementedException(),
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};
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}
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finally
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{
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ExitFileSystemShared();
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}
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}
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protected override FileAttributes GetAttributesImpl(UPath path)
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{
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throw new NotImplementedException();
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}
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protected override void SetAttributesImpl(UPath path, FileAttributes attributes)
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{
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}
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protected override DateTime GetCreationTimeImpl(UPath path)
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{
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throw new NotImplementedException();
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}
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protected override void SetCreationTimeImpl(UPath path, DateTime time)
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{
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}
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protected override DateTime GetLastAccessTimeImpl(UPath path)
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{
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throw new NotImplementedException();
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}
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protected override void SetLastAccessTimeImpl(UPath path, DateTime time)
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{
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}
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protected override DateTime GetLastWriteTimeImpl(UPath path)
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{
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return DateTime.FromFileTimeUtc(remoteStorage.OpenFile(path.ToRelative().FullName).FileTimestamp);
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}
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protected override void SetLastWriteTimeImpl(UPath path, DateTime time)
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{
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}
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private FileNode AddFileToTree(string path)
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{
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FileNode fileNode = new FileNode(path);
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AddNodeToTree(fileNode);
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return fileNode;
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}
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private DirectoryNode AddDirectoryToTree(UPath path)
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{
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DirectoryNode directoryNode = new DirectoryNode(path);
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AddNodeToTree(directoryNode);
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return directoryNode;
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}
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private void AddNodeToTree(Node newNode)
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{
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UPath directory = newNode.path.GetDirectory();
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GetDirectoryNode(directory).AddChild(newNode);
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pathToNodeMap[newNode.path] = newNode;
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}
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[CanBeNull]
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private DirectoryNode GetDirectoryNode(UPath directoryPath)
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{
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if (pathToNodeMap.TryGetValue(directoryPath, out var value))
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{
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return value as DirectoryNode;
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}
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return AddDirectoryToTree(directoryPath);
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}
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[CanBeNull]
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private FileNode GetFileNode(UPath filePath)
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{
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if (pathToNodeMap.TryGetValue(filePath, out var value))
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{
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return value as FileNode;
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}
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return null;
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}
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private void UpdateDirectories()
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{
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EnterFileSystemShared();
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try
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{
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if (!treeIsDirty)
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{
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return;
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}
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treeIsDirty = false;
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IEnumerable<string> enumerable = remoteStorage.Files.Select((RemoteFile file) => file.FileName);
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if (!enumerable.SequenceEqual(allFilePaths))
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{
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allFilePaths = enumerable.ToArray();
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pathToNodeMap.Clear();
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pathToNodeMap[UPath.Root] = rootNode;
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rootNode.RemoveAllChildren();
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string[] array = allFilePaths;
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foreach (string path in array)
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{
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AddFileToTree(path);
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}
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}
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}
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finally
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{
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ExitFileSystemShared();
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}
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}
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private void AssertDirectory(Node node, UPath srcPath)
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{
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if (node is FileNode)
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{
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throw new IOException($"The source directory `{srcPath}` is a file");
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}
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}
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protected override IEnumerable<UPath> EnumeratePathsImpl(UPath path, string searchPattern, SearchOption searchOption, SearchTarget searchTarget)
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{
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UpdateDirectories();
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SearchPattern search = SearchPattern.Parse(ref path, ref searchPattern);
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List<UPath> foldersToProcess = new List<UPath> { path };
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SortedSet<UPath> entries = new SortedSet<UPath>(UPath.DefaultComparerIgnoreCase);
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while (foldersToProcess.Count > 0)
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{
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UPath uPath = foldersToProcess[0];
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foldersToProcess.RemoveAt(0);
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int num = 0;
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entries.Clear();
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EnterFileSystemShared();
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try
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{
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Node directoryNode = GetDirectoryNode(uPath);
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if (uPath == path)
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{
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AssertDirectory(directoryNode, uPath);
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goto IL_00cb;
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}
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if (directoryNode is DirectoryNode)
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{
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goto IL_00cb;
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}
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goto end_IL_009b;
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IL_00cb:
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DirectoryNode directoryNode2 = (DirectoryNode)directoryNode;
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for (int i = 0; i < directoryNode2.childCount; i++)
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{
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Node child = directoryNode2.GetChild(i);
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if (!(child is FileNode) || searchTarget != SearchTarget.Directory)
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{
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bool flag = search.Match(child.path);
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bool num2 = searchOption == SearchOption.AllDirectories && child is DirectoryNode;
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bool flag2 = (child is FileNode && searchTarget != SearchTarget.Directory && flag) || (child is DirectoryNode && searchTarget != SearchTarget.File && flag);
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UPath item = uPath / child.path;
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if (num2)
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{
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foldersToProcess.Insert(num++, item);
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}
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if (flag2)
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{
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entries.Add(item);
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}
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}
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}
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goto IL_01b6;
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end_IL_009b:;
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}
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finally
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{
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ExitFileSystemShared();
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}
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continue;
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IL_01b6:
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foreach (UPath item2 in entries)
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{
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yield return item2;
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}
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}
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}
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private static void EnterFileSystemShared()
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{
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Monitor.Enter(globalLock);
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}
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private static void ExitFileSystemShared()
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{
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Monitor.Exit(globalLock);
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}
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protected override IFileSystemWatcher WatchImpl(UPath path)
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{
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throw new NotImplementedException();
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}
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protected override string ConvertPathToInternalImpl(UPath path)
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{
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return path.FullName;
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}
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protected override UPath ConvertPathFromInternalImpl(string innerPath)
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{
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return new UPath(innerPath);
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}
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[ConCommand(commandName = "steam_remote_storage_list_files", flags = ConVarFlags.None, helpText = "Lists the files currently being managed by Steamworks remote storage.")]
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private static void CCSteamRemoteStorageListFiles(ConCommandArgs args)
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{
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}
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}
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