using System;
using BestHTTP.Decompression.Zlib;
using BestHTTP.Extensions;
using BestHTTP.WebSocket.Frames;
using Cpp2IlInjected;

namespace BestHTTP.WebSocket.Extensions
{
	// Token: 0x020019B1 RID: 6577
	[Token(Token = "0x20019B1")]
	public sealed class PerMessageCompression : IExtension
	{
		// Token: 0x17001863 RID: 6243
		// (get) Token: 0x0600993C RID: 39228 RVA: 0x001F5018 File Offset: 0x001F3218
		// (set) Token: 0x0600993D RID: 39229 RVA: 0x001F502C File Offset: 0x001F322C
		[Token(Token = "0x17001863")]
		public bool ClientNoContextTakeover
		{
			[Token(Token = "0x600993C")]
			[Address(RVA = "0x4944B0", Offset = "0x4934B0", VA = "0x1804944B0")]
			get;
			[Token(Token = "0x600993D")]
			[Address(RVA = "0x62ADC0", Offset = "0x629DC0", VA = "0x18062ADC0")]
			private set;
		}

		// Token: 0x17001864 RID: 6244
		// (get) Token: 0x0600993E RID: 39230 RVA: 0x001F5040 File Offset: 0x001F3240
		// (set) Token: 0x0600993F RID: 39231 RVA: 0x001F5054 File Offset: 0x001F3254
		[Token(Token = "0x17001864")]
		public bool ServerNoContextTakeover
		{
			[Token(Token = "0x600993E")]
			[Address(RVA = "0x498E20", Offset = "0x497E20", VA = "0x180498E20")]
			get;
			[Token(Token = "0x600993F")]
			[Address(RVA = "0x62FA00", Offset = "0x62EA00", VA = "0x18062FA00")]
			private set;
		}

		// Token: 0x17001865 RID: 6245
		// (get) Token: 0x06009940 RID: 39232 RVA: 0x001F5068 File Offset: 0x001F3268
		// (set) Token: 0x06009941 RID: 39233 RVA: 0x001F507C File Offset: 0x001F327C
		[Token(Token = "0x17001865")]
		public int ClientMaxWindowBits
		{
			[Token(Token = "0x6009940")]
			[Address(RVA = "0x4936D0", Offset = "0x4926D0", VA = "0x1804936D0")]
			get;
			[Token(Token = "0x6009941")]
			[Address(RVA = "0x5F1920", Offset = "0x5F0920", VA = "0x1805F1920")]
			private set;
		}

		// Token: 0x17001866 RID: 6246
		// (get) Token: 0x06009942 RID: 39234 RVA: 0x001F5090 File Offset: 0x001F3290
		// (set) Token: 0x06009943 RID: 39235 RVA: 0x001F50A4 File Offset: 0x001F32A4
		[Token(Token = "0x17001866")]
		public int ServerMaxWindowBits
		{
			[Token(Token = "0x6009942")]
			[Address(RVA = "0x411540", Offset = "0x410540", VA = "0x180411540")]
			get;
			[Token(Token = "0x6009943")]
			[Address(RVA = "0x5F1910", Offset = "0x5F0910", VA = "0x1805F1910")]
			private set;
		}

		// Token: 0x17001867 RID: 6247
		// (get) Token: 0x06009944 RID: 39236 RVA: 0x001F50B8 File Offset: 0x001F32B8
		// (set) Token: 0x06009945 RID: 39237 RVA: 0x001F50CC File Offset: 0x001F32CC
		[Token(Token = "0x17001867")]
		public CompressionLevel Level
		{
			[Token(Token = "0x6009944")]
			[Address(RVA = "0x497590", Offset = "0x496590", VA = "0x180497590")]
			get;
			[Token(Token = "0x6009945")]
			[Address(RVA = "0x50A2B0", Offset = "0x5092B0", VA = "0x18050A2B0")]
			private set;
		}

		// Token: 0x17001868 RID: 6248
		// (get) Token: 0x06009946 RID: 39238 RVA: 0x001F50E0 File Offset: 0x001F32E0
		// (set) Token: 0x06009947 RID: 39239 RVA: 0x001F50F4 File Offset: 0x001F32F4
		[Token(Token = "0x17001868")]
		public int MinimumDataLegthToCompress
		{
			[Token(Token = "0x6009946")]
			[Address(RVA = "0x470B70", Offset = "0x46FB70", VA = "0x180470B70")]
			get;
			[Token(Token = "0x6009947")]
			[Address(RVA = "0x62ADB0", Offset = "0x629DB0", VA = "0x18062ADB0")]
			set;
		}

		// Token: 0x06009948 RID: 39240 RVA: 0x001F5108 File Offset: 0x001F3308
		[Token(Token = "0x6009948")]
		[Address(RVA = "0x62F9C0", Offset = "0x62E9C0", VA = "0x18062F9C0")]
		public PerMessageCompression()
		{
			this.Level = (CompressionLevel)((ulong)6L);
			this.ClientNoContextTakeover = false;
			this.ClientMaxWindowBits = (int)((ulong)15L);
			this.ServerMaxWindowBits = (int)((ulong)15L);
			this.MinimumDataLegthToCompress = (int)((ulong)256L);
		}

		// Token: 0x06009949 RID: 39241 RVA: 0x001F514C File Offset: 0x001F334C
		[Token(Token = "0x6009949")]
		[Address(RVA = "0x62F970", Offset = "0x62E970", VA = "0x18062F970")]
		public PerMessageCompression(CompressionLevel level, bool clientNoContextTakeover, bool serverNoContextTakeover, int desiredClientMaxWindowBits, int desiredServerMaxWindowBits, int minDatalengthToCompress)
		{
			this.ClientMaxWindowBits = 0;
			this.ServerMaxWindowBits = 0;
			this.Level = level;
			this.MinimumDataLegthToCompress = 0;
			this.ClientNoContextTakeover = clientNoContextTakeover;
		}

		// Token: 0x0600994A RID: 39242 RVA: 0x001F5184 File Offset: 0x001F3384
		[Token(Token = "0x600994A")]
		[Address(RVA = "0x62EE20", Offset = "0x62DE20", VA = "0x18062EE20", Slot = "4")]
		public void AddNegotiation(HTTPRequest request)
		{
			if (this.<ServerNoContextTakeover>k__BackingField)
			{
				string text = "permessage-deflate" + "; server_no_context_takeover";
			}
			string text2;
			if (this.<ClientNoContextTakeover>k__BackingField)
			{
				text2 = "permessage-deflate" + "; client_no_context_takeover";
			}
			int num = this.<ServerMaxWindowBits>k__BackingField;
			if (num == 15)
			{
				this.<ServerMaxWindowBits>k__BackingField = num;
			}
			string text4;
			string text3 = text2 + "; server_max_window_bits=" + text4;
			if (this.<ClientMaxWindowBits>k__BackingField == 15)
			{
				string text5 = text3 + "; client_max_window_bits";
				this.<ClientMaxWindowBits>k__BackingField = (int)((ulong)15L);
			}
			string text7;
			string text6 = text3 + "; client_max_window_bits=" + text7;
			request.AddHeader("Sec-WebSocket-Extensions", text6);
		}

		// Token: 0x0600994B RID: 39243 RVA: 0x0000220F File Offset: 0x0000040F
		[Token(Token = "0x600994B")]
		[Address(RVA = "0x62F5E0", Offset = "0x62E5E0", VA = "0x18062F5E0", Slot = "5")]
		public bool ParseNegotiation(WebSocketResponse resp)
		{
			throw new AnalysisFailedException("CPP2IL failed to recover any usable IL for this method.");
		}

		// Token: 0x0600994C RID: 39244 RVA: 0x001F522C File Offset: 0x001F342C
		[Token(Token = "0x600994C")]
		[Address(RVA = "0x62F5A0", Offset = "0x62E5A0", VA = "0x18062F5A0", Slot = "6")]
		public byte GetFrameHeader(WebSocketFrame writer, byte inFlag)
		{
			WebSocketFrameTypes <Type>k__BackingField = writer.<Type>k__BackingField;
			if (writer.<Data>k__BackingField != 0)
			{
				int num = this.<MinimumDataLegthToCompress>k__BackingField;
			}
			return inFlag;
		}

		// Token: 0x0600994D RID: 39245 RVA: 0x001F5258 File Offset: 0x001F3458
		[Token(Token = "0x600994D")]
		[Address(RVA = "0x62F4F0", Offset = "0x62E4F0", VA = "0x18062F4F0", Slot = "7")]
		public byte[] Encode(WebSocketFrame writer)
		{
			byte[] <Data>k__BackingField = writer.<Data>k__BackingField;
			if (<Data>k__BackingField != 0)
			{
				return <Data>k__BackingField;
			}
			return VariableSizedBufferPool.NoData;
		}

		// Token: 0x0600994E RID: 39246 RVA: 0x001F5290 File Offset: 0x001F3490
		[Token(Token = "0x600994E")]
		[Address(RVA = "0x62F1C0", Offset = "0x62E1C0", VA = "0x18062F1C0", Slot = "8")]
		public byte[] Decode(byte header, byte[] data, int length)
		{
			return this.Decompress(data, length);
		}

		// Token: 0x0600994F RID: 39247 RVA: 0x001F52A8 File Offset: 0x001F34A8
		[Token(Token = "0x600994F")]
		[Address(RVA = "0x62EF50", Offset = "0x62DF50", VA = "0x18062EF50")]
		private byte[] Compress(byte[] data, int length)
		{
			int num;
			byte[] array;
			do
			{
				num = 0;
				if (this.compressorOutputStream == 0)
				{
					BufferPoolMemoryStream bufferPoolMemoryStream = new BufferPoolMemoryStream();
					this.compressorOutputStream = bufferPoolMemoryStream;
				}
				if (this.compressorDeflateStream == num)
				{
					CompressionLevel compressionLevel = this.<Level>k__BackingField;
					int num2 = this.<ClientMaxWindowBits>k__BackingField;
					DeflateStream deflateStream;
					this.compressorDeflateStream = deflateStream;
					FlushType flushMode = deflateStream.FlushMode;
				}
				int num3 = this.compressorDeflateStream.ReadByte();
				DeflateStream deflateStream2 = this.compressorDeflateStream;
				long position = this.compressorOutputStream.Position;
				bool canWrite = this.compressorOutputStream.CanWrite;
				array = this.compressorOutputStream.ToArray();
				if (this.<ClientNoContextTakeover>k__BackingField)
				{
					this.compressorDeflateStream.Dispose();
					this.compressorDeflateStream = (ulong)0L;
				}
			}
			while (num != 0);
			return array;
		}

		// Token: 0x06009950 RID: 39248 RVA: 0x001F5388 File Offset: 0x001F3588
		[Token(Token = "0x6009950")]
		[Address(RVA = "0x62F1E0", Offset = "0x62E1E0", VA = "0x18062F1E0")]
		private byte[] Decompress(byte[] data, int length)
		{
			BufferPoolMemoryStream bufferPoolMemoryStream = this.decompressorInputStream;
			if (bufferPoolMemoryStream == 0)
			{
				int num;
				BufferPoolMemoryStream bufferPoolMemoryStream2 = new BufferPoolMemoryStream(num);
				num = data.Length;
				num += 4;
				this.decompressorInputStream = bufferPoolMemoryStream2;
			}
			int num2 = bufferPoolMemoryStream.ReadByte();
			BufferPoolMemoryStream bufferPoolMemoryStream3 = this.decompressorInputStream;
			byte[] trailer = PerMessageCompression.Trailer;
			int num3 = bufferPoolMemoryStream3.ReadByte();
			long position = this.decompressorInputStream.Position;
			int num4 = 0;
			if (this.decompressorDeflateStream == num4)
			{
				BufferPoolMemoryStream bufferPoolMemoryStream4 = this.decompressorInputStream;
				int num5 = this.<ServerMaxWindowBits>k__BackingField;
				ulong num6;
				DeflateStream deflateStream = new DeflateStream(bufferPoolMemoryStream4, CompressionMode.Decompress, CompressionLevel.Default, num6 != 0UL, num5);
				this.decompressorDeflateStream = deflateStream;
				FlushType flushMode = deflateStream.FlushMode;
			}
			if (this.decompressorOutputStream == 0)
			{
				BufferPoolMemoryStream bufferPoolMemoryStream5 = new BufferPoolMemoryStream();
				this.decompressorOutputStream = bufferPoolMemoryStream5;
			}
			uint num7;
			ulong num8;
			byte[] array = VariableSizedBufferPool.Get((long)num7, num8 != 0UL);
			DeflateStream deflateStream2 = this.decompressorDeflateStream;
			int num9 = this.decompressorOutputStream.ReadByte();
			VariableSizedBufferPool.Release(array);
			DeflateStream deflateStream3 = this.decompressorDeflateStream;
			byte[] array2 = this.decompressorOutputStream.ToArray();
			if ((this.<ServerNoContextTakeover>k__BackingField ? 1 : 0) != num4)
			{
				this.decompressorDeflateStream.Dispose();
				this.decompressorDeflateStream = num4;
			}
			return array2;
		}

		// Token: 0x06009951 RID: 39249 RVA: 0x001F549C File Offset: 0x001F369C
		// Note: this type is marked as 'beforefieldinit'.
		[Token(Token = "0x6009951")]
		[Address(RVA = "0x62F8E0", Offset = "0x62E8E0", VA = "0x18062F8E0")]
		static PerMessageCompression()
		{
			byte[] array = new byte[4];
			array[0] = (byte)((ulong)255L);
			array[0] = (byte)((ulong)255L);
			PerMessageCompression.Trailer = array;
		}

		// Token: 0x040067A5 RID: 26533
		[Token(Token = "0x40067A5")]
		public const int MinDataLengthToCompressDefault = 256;

		// Token: 0x040067A6 RID: 26534
		[Token(Token = "0x40067A6")]
		private static readonly byte[] Trailer;

		// Token: 0x040067AD RID: 26541
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x40067AD")]
		private BufferPoolMemoryStream compressorOutputStream;

		// Token: 0x040067AE RID: 26542
		[FieldOffset(Offset = "0x30")]
		[Token(Token = "0x40067AE")]
		private DeflateStream compressorDeflateStream;

		// Token: 0x040067AF RID: 26543
		[FieldOffset(Offset = "0x38")]
		[Token(Token = "0x40067AF")]
		private BufferPoolMemoryStream decompressorInputStream;

		// Token: 0x040067B0 RID: 26544
		[FieldOffset(Offset = "0x40")]
		[Token(Token = "0x40067B0")]
		private BufferPoolMemoryStream decompressorOutputStream;

		// Token: 0x040067B1 RID: 26545
		[FieldOffset(Offset = "0x48")]
		[Token(Token = "0x40067B1")]
		private DeflateStream decompressorDeflateStream;
	}
}