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Assets/BestHTTP/SecureProtocol/asn1/DerBoolean.cs

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+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+using System;
+
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1
+{
+    public class DerBoolean
+        : Asn1Object
+    {
+        private readonly byte value;
+
+        public static readonly DerBoolean False = new DerBoolean(false);
+        public static readonly DerBoolean True  = new DerBoolean(true);
+
+        /**
+         * return a bool from the passed in object.
+         *
+         * @exception ArgumentException if the object cannot be converted.
+         */
+        public static DerBoolean GetInstance(
+            object obj)
+        {
+            if (obj == null || obj is DerBoolean)
+            {
+                return (DerBoolean) obj;
+            }
+
+            throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj));
+        }
+
+        /**
+         * return a DerBoolean from the passed in bool.
+         */
+        public static DerBoolean GetInstance(
+            bool value)
+        {
+            return value ? True : False;
+        }
+
+        /**
+         * return a Boolean from a tagged object.
+         *
+         * @param obj the tagged object holding the object we want
+         * @param explicitly true if the object is meant to be explicitly
+         *              tagged false otherwise.
+         * @exception ArgumentException if the tagged object cannot
+         *               be converted.
+         */
+        public static DerBoolean GetInstance(
+            Asn1TaggedObject	obj,
+            bool				isExplicit)
+        {
+            Asn1Object o = obj.GetObject();
+
+            if (isExplicit || o is DerBoolean)
+            {
+                return GetInstance(o);
+            }
+
+            return FromOctetString(((Asn1OctetString)o).GetOctets());
+        }
+
+        public DerBoolean(
+            byte[] val)
+        {
+            if (val.Length != 1)
+                throw new ArgumentException("byte value should have 1 byte in it", "val");
+
+            // TODO Are there any constraints on the possible byte values?
+            this.value = val[0];
+        }
+
+        private DerBoolean(
+            bool value)
+        {
+            this.value = value ? (byte)0xff : (byte)0;
+        }
+
+        public bool IsTrue
+        {
+            get { return value != 0; }
+        }
+
+        internal override void Encode(
+            DerOutputStream derOut)
+        {
+            // TODO Should we make sure the byte value is one of '0' or '0xff' here?
+            derOut.WriteEncoded(Asn1Tags.Boolean, new byte[]{ value });
+        }
+
+        protected override bool Asn1Equals(
+            Asn1Object asn1Object)
+        {
+            DerBoolean other = asn1Object as DerBoolean;
+
+            if (other == null)
+                return false;
+
+            return IsTrue == other.IsTrue;
+        }
+
+        protected override int Asn1GetHashCode()
+        {
+            return IsTrue.GetHashCode();
+        }
+
+        public override string ToString()
+        {
+            return IsTrue ? "TRUE" : "FALSE";
+        }
+
+        internal static DerBoolean FromOctetString(byte[] value)
+        {
+            if (value.Length != 1)
+            {
+                throw new ArgumentException("BOOLEAN value should have 1 byte in it", "value");
+            }
+
+            byte b = value[0];
+
+            return b == 0 ? False : b == 0xFF ? True : new DerBoolean(value);
+        }
+    }
+}
+
+#endif