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

namespace BestHTTP.WebSocket.Extensions
{
	// Token: 0x020018D1 RID: 6353
	[Token(Token = "0x20018D1")]
	public sealed class PerMessageCompression : IExtension
	{
		// Token: 0x170017C6 RID: 6086
		// (get) Token: 0x0600956E RID: 38254 RVA: 0x001EBF7C File Offset: 0x001EA17C
		// (set) Token: 0x0600956F RID: 38255 RVA: 0x001EBF90 File Offset: 0x001EA190
		[Token(Token = "0x170017C6")]
		public bool ClientNoContextTakeover
		{
			[Token(Token = "0x600956E")]
			[Address(RVA = "0x42D5E0", Offset = "0x42C3E0", VA = "0x18042D5E0")]
			get;
			[Token(Token = "0x600956F")]
			[Address(RVA = "0x495D50", Offset = "0x494B50", VA = "0x180495D50")]
			private set;
		}

		// Token: 0x170017C7 RID: 6087
		// (get) Token: 0x06009570 RID: 38256 RVA: 0x001EBFA4 File Offset: 0x001EA1A4
		// (set) Token: 0x06009571 RID: 38257 RVA: 0x001EBFB8 File Offset: 0x001EA1B8
		[Token(Token = "0x170017C7")]
		public bool ServerNoContextTakeover
		{
			[Token(Token = "0x6009570")]
			[Address(RVA = "0x49E540", Offset = "0x49D340", VA = "0x18049E540")]
			get;
			[Token(Token = "0x6009571")]
			[Address(RVA = "0x756A50", Offset = "0x755850", VA = "0x180756A50")]
			private set;
		}

		// Token: 0x170017C8 RID: 6088
		// (get) Token: 0x06009572 RID: 38258 RVA: 0x001EBFCC File Offset: 0x001EA1CC
		// (set) Token: 0x06009573 RID: 38259 RVA: 0x001EBFE0 File Offset: 0x001EA1E0
		[Token(Token = "0x170017C8")]
		public int ClientMaxWindowBits
		{
			[Token(Token = "0x6009572")]
			[Address(RVA = "0x495080", Offset = "0x493E80", VA = "0x180495080")]
			get;
			[Token(Token = "0x6009573")]
			[Address(RVA = "0x52EC20", Offset = "0x52DA20", VA = "0x18052EC20")]
			private set;
		}

		// Token: 0x170017C9 RID: 6089
		// (get) Token: 0x06009574 RID: 38260 RVA: 0x001EBFF4 File Offset: 0x001EA1F4
		// (set) Token: 0x06009575 RID: 38261 RVA: 0x001EC008 File Offset: 0x001EA208
		[Token(Token = "0x170017C9")]
		public int ServerMaxWindowBits
		{
			[Token(Token = "0x6009574")]
			[Address(RVA = "0x40B720", Offset = "0x40A520", VA = "0x18040B720")]
			get;
			[Token(Token = "0x6009575")]
			[Address(RVA = "0x41F740", Offset = "0x41E540", VA = "0x18041F740")]
			private set;
		}

		// Token: 0x170017CA RID: 6090
		// (get) Token: 0x06009576 RID: 38262 RVA: 0x001EC01C File Offset: 0x001EA21C
		// (set) Token: 0x06009577 RID: 38263 RVA: 0x001EC030 File Offset: 0x001EA230
		[Token(Token = "0x170017CA")]
		public CompressionLevel Level
		{
			[Token(Token = "0x6009576")]
			[Address(RVA = "0x41F5B0", Offset = "0x41E3B0", VA = "0x18041F5B0")]
			get;
			[Token(Token = "0x6009577")]
			[Address(RVA = "0x41F730", Offset = "0x41E530", VA = "0x18041F730")]
			private set;
		}

		// Token: 0x170017CB RID: 6091
		// (get) Token: 0x06009578 RID: 38264 RVA: 0x001EC044 File Offset: 0x001EA244
		// (set) Token: 0x06009579 RID: 38265 RVA: 0x001EC058 File Offset: 0x001EA258
		[Token(Token = "0x170017CB")]
		public int MinimumDataLegthToCompress
		{
			[Token(Token = "0x6009578")]
			[Address(RVA = "0x3F7310", Offset = "0x3F6110", VA = "0x1803F7310")]
			get;
			[Token(Token = "0x6009579")]
			[Address(RVA = "0x420360", Offset = "0x41F160", VA = "0x180420360")]
			set;
		}

		// Token: 0x0600957A RID: 38266 RVA: 0x001EC06C File Offset: 0x001EA26C
		[Token(Token = "0x600957A")]
		[Address(RVA = "0x1C3C490", Offset = "0x1C3B290", VA = "0x181C3C490")]
		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: 0x0600957B RID: 38267 RVA: 0x001EC0B0 File Offset: 0x001EA2B0
		[Token(Token = "0x600957B")]
		[Address(RVA = "0x1C3C440", Offset = "0x1C3B240", VA = "0x181C3C440")]
		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: 0x0600957C RID: 38268 RVA: 0x001EC0E8 File Offset: 0x001EA2E8
		[Token(Token = "0x600957C")]
		[Address(RVA = "0x1C3B8F0", Offset = "0x1C3A6F0", VA = "0x181C3B8F0", 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: 0x0600957D RID: 38269 RVA: 0x0000220F File Offset: 0x0000040F
		[Token(Token = "0x600957D")]
		[Address(RVA = "0x1C3C0B0", Offset = "0x1C3AEB0", VA = "0x181C3C0B0", Slot = "5")]
		public bool ParseNegotiation(WebSocketResponse resp)
		{
			throw new AnalysisFailedException("CPP2IL failed to recover any usable IL for this method.");
		}

		// Token: 0x0600957E RID: 38270 RVA: 0x001EC190 File Offset: 0x001EA390
		[Token(Token = "0x600957E")]
		[Address(RVA = "0x1C3C070", Offset = "0x1C3AE70", VA = "0x181C3C070", 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: 0x0600957F RID: 38271 RVA: 0x001EC1BC File Offset: 0x001EA3BC
		[Token(Token = "0x600957F")]
		[Address(RVA = "0x1C3BFC0", Offset = "0x1C3ADC0", VA = "0x181C3BFC0", 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: 0x06009580 RID: 38272 RVA: 0x001EC1F4 File Offset: 0x001EA3F4
		[Token(Token = "0x6009580")]
		[Address(RVA = "0x1C3BC90", Offset = "0x1C3AA90", VA = "0x181C3BC90", Slot = "8")]
		public byte[] Decode(byte header, byte[] data, int length)
		{
			return this.Decompress(data, length);
		}

		// Token: 0x06009581 RID: 38273 RVA: 0x001EC20C File Offset: 0x001EA40C
		[Token(Token = "0x6009581")]
		[Address(RVA = "0x1C3BA20", Offset = "0x1C3A820", VA = "0x181C3BA20")]
		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: 0x06009582 RID: 38274 RVA: 0x001EC2EC File Offset: 0x001EA4EC
		[Token(Token = "0x6009582")]
		[Address(RVA = "0x1C3BCB0", Offset = "0x1C3AAB0", VA = "0x181C3BCB0")]
		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: 0x06009583 RID: 38275 RVA: 0x001EC400 File Offset: 0x001EA600
		// Note: this type is marked as 'beforefieldinit'.
		[Token(Token = "0x6009583")]
		[Address(RVA = "0x1C3C3B0", Offset = "0x1C3B1B0", VA = "0x181C3C3B0")]
		static PerMessageCompression()
		{
			byte[] array = new byte[4];
			array[0] = (byte)((ulong)255L);
			array[0] = (byte)((ulong)255L);
			PerMessageCompression.Trailer = array;
		}

		// Token: 0x040065EC RID: 26092
		[Token(Token = "0x40065EC")]
		public const int MinDataLengthToCompressDefault = 256;

		// Token: 0x040065ED RID: 26093
		[Token(Token = "0x40065ED")]
		private static readonly byte[] Trailer;

		// Token: 0x040065F4 RID: 26100
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x40065F4")]
		private BufferPoolMemoryStream compressorOutputStream;

		// Token: 0x040065F5 RID: 26101
		[FieldOffset(Offset = "0x30")]
		[Token(Token = "0x40065F5")]
		private DeflateStream compressorDeflateStream;

		// Token: 0x040065F6 RID: 26102
		[FieldOffset(Offset = "0x38")]
		[Token(Token = "0x40065F6")]
		private BufferPoolMemoryStream decompressorInputStream;

		// Token: 0x040065F7 RID: 26103
		[FieldOffset(Offset = "0x40")]
		[Token(Token = "0x40065F7")]
		private BufferPoolMemoryStream decompressorOutputStream;

		// Token: 0x040065F8 RID: 26104
		[FieldOffset(Offset = "0x48")]
		[Token(Token = "0x40065F8")]
		private DeflateStream decompressorDeflateStream;
	}
}