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Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/x509/X509CertPairParser.cs

@@ -0,0 +1,101 @@
+#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
+#pragma warning disable
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Security.Certificates;
+using Best.HTTP.SecureProtocol.Org.BouncyCastle.Utilities.IO;
+
+namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.X509
+{
+	public class X509CertPairParser
+	{
+		private Stream currentStream;
+
+		private X509CertificatePair ReadDerCrossCertificatePair(
+			Stream inStream)
+		{
+			Asn1InputStream dIn = new Asn1InputStream(inStream);//, ProviderUtil.getReadLimit(in));
+			Asn1Sequence seq = (Asn1Sequence)dIn.ReadObject();
+			CertificatePair pair = CertificatePair.GetInstance(seq);
+			return new X509CertificatePair(pair);
+		}
+
+		/// <summary>
+		/// Create loading data from byte array.
+		/// </summary>
+		/// <param name="input"></param>
+		public X509CertificatePair ReadCertPair(byte[] input)
+		{
+			return ReadCertPair(new MemoryStream(input, false));
+		}
+
+		/// <summary>
+		/// Create loading data from byte array.
+		/// </summary>
+		/// <param name="input"></param>
+		public IList<X509CertificatePair> ReadCertPairs(byte[] input)
+		{
+			return ReadCertPairs(new MemoryStream(input, false));
+		}
+
+		public X509CertificatePair ReadCertPair(Stream inStream)
+		{
+			if (inStream == null)
+				throw new ArgumentNullException("inStream");
+			if (!inStream.CanRead)
+				throw new ArgumentException("inStream must be read-able", "inStream");
+
+			if (currentStream == null)
+			{
+				currentStream = inStream;
+			}
+			else if (currentStream != inStream) // reset if input stream has changed
+			{
+				currentStream = inStream;
+			}
+
+			try
+			{
+                int tag = inStream.ReadByte();
+                if (tag < 0)
+                    return null;
+
+                if (inStream.CanSeek)
+                {
+                    inStream.Seek(-1L, SeekOrigin.Current);
+                }
+                else
+                {
+                    PushbackStream pis = new PushbackStream(inStream);
+                    pis.Unread(tag);
+                    inStream = pis;
+                }
+
+                return ReadDerCrossCertificatePair(inStream);
+			}
+			catch (Exception e)
+			{
+				throw new CertificateException(e.ToString());
+			}
+		}
+
+		public IList<X509CertificatePair> ReadCertPairs(Stream inStream)
+		{
+			var certPairs = new List<X509CertificatePair>();
+
+			X509CertificatePair certPair;
+			while ((certPair = ReadCertPair(inStream)) != null)
+			{
+				certPairs.Add(certPair);
+			}
+
+			return certPairs;
+		}
+	}
+}
+#pragma warning restore
+#endif