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111 lines
2.5 KiB
111 lines
2.5 KiB
1 year ago
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#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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using System.IO;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.IO;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1
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{
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public abstract class BerGenerator
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: Asn1Generator
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{
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private bool _tagged = false;
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private bool _isExplicit;
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private int _tagNo;
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protected BerGenerator(
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Stream outStream)
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: base(outStream)
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{
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}
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protected BerGenerator(
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Stream outStream,
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int tagNo,
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bool isExplicit)
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: base(outStream)
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{
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_tagged = true;
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_isExplicit = isExplicit;
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_tagNo = tagNo;
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}
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public override void AddObject(Asn1Encodable obj)
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{
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obj.EncodeTo(Out);
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}
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public override void AddObject(Asn1Object obj)
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{
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obj.EncodeTo(Out);
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}
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public override Stream GetRawOutputStream()
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{
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return Out;
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}
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public override void Close()
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{
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WriteBerEnd();
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}
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private void WriteHdr(
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int tag)
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{
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Out.WriteByte((byte) tag);
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Out.WriteByte(0x80);
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}
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protected void WriteBerHeader(
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int tag)
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{
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if (_tagged)
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{
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int tagNum = _tagNo | Asn1Tags.ContextSpecific;
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if (_isExplicit)
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{
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WriteHdr(tagNum | Asn1Tags.Constructed);
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WriteHdr(tag);
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}
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else
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{
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if ((tag & Asn1Tags.Constructed) != 0)
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{
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WriteHdr(tagNum | Asn1Tags.Constructed);
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}
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else
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{
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WriteHdr(tagNum);
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}
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}
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}
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else
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{
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WriteHdr(tag);
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}
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}
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protected void WriteBerBody(
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Stream contentStream)
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{
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Streams.PipeAll(contentStream, Out);
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}
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protected void WriteBerEnd()
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{
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Out.WriteByte(0x00);
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Out.WriteByte(0x00);
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if (_tagged && _isExplicit) // write extra end for tag header
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{
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Out.WriteByte(0x00);
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Out.WriteByte(0x00);
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}
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}
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}
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}
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#pragma warning restore
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#endif
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