using System;
using System.Collections;
using System.IO;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.IO;
using Cpp2IlInjected;

namespace BestHTTP.SecureProtocol.Org.BouncyCastle.X509
{
	// Token: 0x020019E1 RID: 6625
	[Token(Token = "0x20019E1")]
	public class X509CertPairParser
	{
		// Token: 0x06009A74 RID: 39540 RVA: 0x001F900C File Offset: 0x001F720C
		[Token(Token = "0x6009A74")]
		[Address(RVA = "0x416180", Offset = "0x415180", VA = "0x180416180")]
		private X509CertificatePair ReadDerCrossCertificatePair(Stream inStream)
		{
			Asn1Object asn1Object;
			do
			{
				asn1Object = new Asn1InputStream(inStream).ReadObject();
				if (asn1Object == 0)
				{
				}
			}
			while (asn1Object == 0);
			CertificatePair instance = CertificatePair.GetInstance(asn1Object);
			X509CertificateStructure forward = instance.forward;
			X509CertificatePair x509CertificatePair;
			if (forward != 0)
			{
				X509Certificate x509Certificate = new X509Certificate(forward);
				x509CertificatePair.forward = x509Certificate;
			}
			X509CertificateStructure reverse = instance.reverse;
			if (reverse != 0)
			{
				X509Certificate x509Certificate2 = new X509Certificate(reverse);
				x509CertificatePair.reverse = x509Certificate2;
			}
			return x509CertificatePair;
		}

		// Token: 0x06009A75 RID: 39541 RVA: 0x001F907C File Offset: 0x001F727C
		[Token(Token = "0x6009A75")]
		[Address(RVA = "0x415E60", Offset = "0x414E60", VA = "0x180415E60")]
		public X509CertificatePair ReadCertPair(byte[] input)
		{
			int num;
			MemoryStream memoryStream = new MemoryStream(input, num != 0);
			num = 0;
			return this.ReadCertPair(memoryStream);
		}

		// Token: 0x06009A76 RID: 39542 RVA: 0x001F909C File Offset: 0x001F729C
		[Token(Token = "0x6009A76")]
		[Address(RVA = "0x416010", Offset = "0x415010", VA = "0x180416010")]
		public ICollection ReadCertPairs(byte[] input)
		{
			MemoryStream memoryStream;
			do
			{
				int num;
				memoryStream = new MemoryStream(input, num != 0);
				num = 0;
				IList list = Platform.CreateArrayList();
				int num2 = 0;
				if (this.ReadCertPair(memoryStream) == 0)
				{
					break;
				}
				int num3 = 0;
				if (num3 < num2)
				{
					num3 += num3;
					num3++;
				}
			}
			while (this.ReadCertPair(memoryStream) != 0);
			memoryStream += memoryStream;
			throw new NullReferenceException();
		}

		// Token: 0x06009A77 RID: 39543 RVA: 0x001F90F4 File Offset: 0x001F72F4
		[Token(Token = "0x6009A77")]
		[Address(RVA = "0x415B70", Offset = "0x414B70", VA = "0x180415B70")]
		public X509CertificatePair ReadCertPair(Stream inStream)
		{
			if (inStream != 0)
			{
				inStream.Dispose();
				Stream stream = this.currentStream;
				if (stream == 0 || stream != inStream)
				{
					this.currentStream = inStream;
				}
				PushbackStream pushbackStream = new PushbackStream(inStream);
				int num;
				pushbackStream.WriteByte((byte)num);
				Asn1Object asn1Object = new Asn1InputStream(pushbackStream).ReadObject();
				if (asn1Object == 0)
				{
				}
				if (asn1Object == 0)
				{
					throw new NullReferenceException();
				}
				CertificatePair instance = CertificatePair.GetInstance(asn1Object);
				X509CertificateStructure forward = instance.forward;
				X509CertificatePair x509CertificatePair;
				if (forward != 0)
				{
					X509Certificate x509Certificate = new X509Certificate(forward);
					x509CertificatePair.forward = x509Certificate;
				}
				X509CertificateStructure reverse = instance.reverse;
				if (reverse != 0)
				{
					X509Certificate x509Certificate2 = new X509Certificate(reverse);
					x509CertificatePair.reverse = x509Certificate2;
				}
			}
			ArgumentNullException ex = new ArgumentNullException("inStream");
			throw new NullReferenceException();
		}

		// Token: 0x06009A78 RID: 39544 RVA: 0x001F91C8 File Offset: 0x001F73C8
		[Token(Token = "0x6009A78")]
		[Address(RVA = "0x415ED0", Offset = "0x414ED0", VA = "0x180415ED0")]
		public ICollection ReadCertPairs(Stream inStream)
		{
			do
			{
				IList list = Platform.CreateArrayList();
				int num = 0;
				if (this.ReadCertPair(inStream) == 0)
				{
					break;
				}
				int num2 = 0;
				if (num2 < num)
				{
					num2 += num2;
					num2++;
				}
			}
			while (this.ReadCertPair(inStream) != 0);
			throw new NullReferenceException();
		}

		// Token: 0x06009A79 RID: 39545 RVA: 0x001F9208 File Offset: 0x001F7408
		[Token(Token = "0x6009A79")]
		[Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")]
		public X509CertPairParser()
		{
		}

		// Token: 0x0400683A RID: 26682
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x400683A")]
		private Stream currentStream;
	}
}