add Pilz.Cryptography

2020-07-14 09:35:33 +02:00
parent bf77505f42
commit e31827642e
19 changed files with 392 additions and 439 deletions
--- a/Pilz.Cryptography/UniquieID.cs
+++ b/Pilz.Cryptography/UniquieID.cs
@@ -0,0 +1,110 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Management;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SM64Lib
+{
+    public class UniquieID<TargetType>
+    {
+        private static int currentSimpleID = 0;
+
+        [JsonProperty(nameof(ID))]
+        private string _iD;
+
+        [JsonIgnore]
+        public string ID
+        {
+            get
+            {
+                if (GenerateOnGet)
+                    GenerateIfNull();
+                return _iD;
+            }
+            internal set
+                => _iD = value;
+        }
+
+        [JsonIgnore]
+        public bool HasID { get => !string.IsNullOrEmpty(_iD); }
+        [JsonIgnore]
+        public bool SimpleMode { get; set; } = false;
+        [JsonIgnore]
+        public bool GenerateOnGet { get; set; } = false;
+
+        public UniquieID() : this(false)
+        {
+        }
+
+        public UniquieID(bool autoGenerate)
+        {
+            if (autoGenerate)
+                GenerateIfNull();
+        }
+
+        public void Generate()
+        {
+            if (SimpleMode)
+                ID = typeof(TargetType).ToString() + currentSimpleID++.ToString();
+            else
+                ID = GenerateUniquieID<TargetType>(string.Empty);
+        }
+        public void GenerateIfNull()
+        {
+            if (!HasID) Generate();
+        }
+
+        private static string GenerateUniquieID<T>(string var)
+        {
+            var sn = TryGetSerialNumberOfFirstHardDrive();
+            var dateTime = DateTime.UtcNow.ToString("yyyyMMddHHmmssfffffff");
+            var type = typeof(T).ToString();
+            var together = sn + dateTime + type + var;
+
+            var md5 = MD5.Create();
+            var hash = BitConverter.ToString(md5.ComputeHash(Encoding.Default.GetBytes(together))).Replace("-", string.Empty);
+            md5.Dispose();
+
+            return hash;
+        }
+
+        private static string TryGetSerialNumberOfFirstHardDrive()
+        {
+            var searcher = new ManagementObjectSearcher("SELECT * FROM Win32_PhysicalMedia");
+            var sn = string.Empty;
+
+            foreach (ManagementObject wmi_HD in searcher.Get())
+            {
+                if (string.IsNullOrEmpty(sn) && wmi_HD["SerialNumber"] != null)
+                    sn = wmi_HD["SerialNumber"].ToString().Trim();
+            }
+
+            return sn;
+        }
+
+        public override string ToString() => ID;
+
+        public override bool Equals(object obj)
+        {
+            var iD = obj as UniquieID<TargetType>;
+            return iD != null &&
+                   _iD == iD._iD;
+        }
+
+        public override int GetHashCode()
+        {
+            return -1430039477 + EqualityComparer<string>.Default.GetHashCode(_iD);
+        }
+
+        public static implicit operator string(UniquieID<TargetType> id)    => id.ID;
+        public static implicit operator UniquieID<TargetType>(string id)    => new UniquieID<TargetType>() { ID = id };
+        public static implicit operator UniquieID<TargetType>(int id)       => new UniquieID<TargetType>() { ID = Convert.ToString(id) };
+
+        public static bool operator ==(UniquieID<TargetType> left, UniquieID<TargetType> right) => left.ID == right.ID;
+        public static bool operator !=(UniquieID<TargetType> left, UniquieID<TargetType> right) => left.ID != right.ID;
+    }
+}