Unstable 0.17.5.0

2022-03-30 01:20:59 +09:00
parent c1b8e5a341
commit 44ded0225a
88 changed files with 2033 additions and 1430 deletions
@@ -0,0 +1,220 @@
+#nullable enable
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Barotrauma.IO;
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace Barotrauma
+{
+    public class Md5Hash
+    {
+        public static class Cache
+        {
+            private const string cachePath = "Data/hashcache.txt";
+
+            private readonly static List<(string Path, Md5Hash Hash, DateTime DateTime)> Entries
+                = new List<(string Path, Md5Hash Hash, DateTime DateTime)>();
+
+            public static void Load()
+            {
+                if (!File.Exists(cachePath)) { return; }
+                var lines = File.ReadAllLines(cachePath);
+                if (Version.TryParse(lines[0], out var cacheVersion) && cacheVersion == GameMain.Version)
+                {
+                    for (int i = 1; i < lines.Length; i++)
+                    {
+                        string[] split = lines[i].Split('|');
+                        string path = split[0].CleanUpPathCrossPlatform();
+                        Md5Hash hash = Md5Hash.StringAsHash(split[1]);
+                        DateTime? dateTime = null;
+                        if (long.TryParse(split[2], out long dateTimeUlong))
+                        {
+                            dateTime = DateTime.FromBinary(dateTimeUlong);
+                        }
+
+                        if (File.Exists(path) && dateTime.HasValue && dateTime >= File.GetLastWriteTime(path))
+                        {
+                            Entries.Add((path, hash, dateTime.Value));
+                        }
+                    }
+                }
+            }
+
+            public static void Add(string path, Md5Hash hash, DateTime dateTime)
+            {
+                path = path.CleanUpPathCrossPlatform();
+                Remove(path);
+                Entries.Add((path, hash, dateTime));
+            }
+
+            public static void Remove(string path)
+            {
+                path = path.CleanUpPathCrossPlatform();
+                Entries.RemoveAll(e => e.Path == path);
+            }
+        }
+
+        public static readonly Md5Hash Blank = new Md5Hash(new string('0', 32));
+
+        private static string RemoveWhitespace(string s)
+        {
+            StringBuilder sb = new StringBuilder(s.Length / 2); // Reserve half the size of the original string because
+                                                                // that's probably close enough to the size of the result
+            for (int i = 0; i < s.Length; i++)
+            {
+                if (char.IsWhiteSpace(s[i])) { continue; }
+                sb.Append(s[i]);
+            }
+            return sb.ToString();
+        }
+
+        //thanks to Jlobblet for this regex
+        private static readonly Regex stringHashRegex = new Regex(@"^[0-9a-fA-F]{7,32}$", RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
+
+        public readonly byte[] ByteRepresentation;
+        public readonly string StringRepresentation;
+        public readonly string ShortRepresentation;
+
+        private static void CalculateHash(byte[] bytes, out string stringRepresentation, out byte[] byteRepresentation)
+        {
+            using (MD5 md5 = MD5.Create())
+            {
+                byte[] byteHash = md5.ComputeHash(bytes);
+
+                byteRepresentation = byteHash;
+                stringRepresentation = ByteRepresentationToStringRepresentation(byteHash);
+            }
+        }
+
+        private static string ByteRepresentationToStringRepresentation(byte[] byteHash)
+        {
+            StringBuilder sb = new StringBuilder();
+            for (int i = 0; i < byteHash.Length; i++)
+            {
+                sb.Append(byteHash[i].ToString("X2"));
+            }
+
+            return sb.ToString();
+        }
+
+        private static byte[] StringRepresentationToByteRepresentation(string strHash)
+        {
+            var byteRepresentation = new byte[strHash.Length / 2];
+            for (int i = 0; i < byteRepresentation.Length; i++)
+            {
+                byteRepresentation[i] = Convert.ToByte(strHash.Substring(i * 2, 2), 16);
+            }
+
+            return byteRepresentation;
+        }
+
+        public static string GetShortHash(string fullHash)
+        {
+            return fullHash.Length < 7 ? fullHash : fullHash.Substring(0, 7);
+        }
+
+        private Md5Hash(string md5Hash)
+        {
+            StringRepresentation = md5Hash;
+            ByteRepresentation = StringRepresentationToByteRepresentation(StringRepresentation);
+    
+            ShortRepresentation = GetShortHash(md5Hash);
+        }
+
+        private Md5Hash(byte[] bytes, bool calculate)
+        {
+            if (calculate)
+            {
+                CalculateHash(bytes, out StringRepresentation, out ByteRepresentation);
+            }
+            else
+            {
+                StringRepresentation = ByteRepresentationToStringRepresentation(bytes);
+                ByteRepresentation = bytes;
+            }
+
+            ShortRepresentation = GetShortHash(StringRepresentation);
+        }
+
+        public static Md5Hash StringAsHash(string hash)
+        {
+            if (!stringHashRegex.IsMatch(hash)) { throw new ArgumentException($"{hash} is not a valid hash"); }
+            return new Md5Hash(hash);
+        }
+
+        public static Md5Hash CalculateForBytes(byte[] bytes)
+        {
+            return new Md5Hash(bytes, calculate: true);
+        }
+
+        public static Md5Hash BytesAsHash(byte[] bytes)
+        {
+            return new Md5Hash(bytes, calculate: false);
+        }
+
+        [Flags]
+        public enum StringHashOptions
+        {
+            BytePerfect = 0,
+            IgnoreCase = 0x1,
+            IgnoreWhitespace = 0x2
+        }
+
+        public static Md5Hash CalculateForFile(string path, StringHashOptions options)
+        {
+            if (options.HasFlag(StringHashOptions.IgnoreWhitespace) || options.HasFlag(StringHashOptions.IgnoreCase))
+            {
+                string str = File.ReadAllText(path, Encoding.UTF8);
+                return CalculateForString(str, options);
+            }
+            else
+            {
+                byte[] bytes = File.ReadAllBytes(path);
+                return CalculateForBytes(bytes);
+            }
+        }
+
+        public static Md5Hash CalculateForString(string str, StringHashOptions options)
+        {
+            if (options.HasFlag(StringHashOptions.IgnoreCase))
+            {
+                str = str.ToLowerInvariant();
+            }
+            if (options.HasFlag(StringHashOptions.IgnoreWhitespace))
+            {
+                str = RemoveWhitespace(str);
+            }
+            byte[] bytes = Encoding.UTF8.GetBytes(str);
+            return CalculateForBytes(bytes);
+        }
+
+        public override string ToString()
+        {
+            return StringRepresentation;
+        }
+
+        public override bool Equals(object? obj)
+        {
+            if (obj is Md5Hash { StringRepresentation: { } otherStr })
+            {
+                string selfStr = otherStr.Length < StringRepresentation.Length
+                       ? StringRepresentation[..otherStr.Length]
+                       : StringRepresentation;
+                otherStr = StringRepresentation.Length < otherStr.Length
+                       ? otherStr[..StringRepresentation.Length]
+                       : otherStr;
+                return selfStr.Equals(otherStr, StringComparison.OrdinalIgnoreCase);
+            }
+            return false;
+        }
+
+        public static bool operator ==(Md5Hash? a, Md5Hash? b)
+            => (a is null == b is null) && (a?.Equals(b) ?? true);
+
+        public static bool operator !=(Md5Hash? a, Md5Hash? b) => !(a == b);
+    }
+}