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119 lines
2.8 KiB
119 lines
2.8 KiB
8 months 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;
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using System.IO;
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities;
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1.Cms
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{
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/**
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* <pre>
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* SignedData ::= SEQUENCE {
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* version CMSVersion,
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* digestAlgorithms DigestAlgorithmIdentifiers,
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* encapContentInfo EncapsulatedContentInfo,
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* certificates [0] IMPLICIT CertificateSet OPTIONAL,
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* crls [1] IMPLICIT CertificateRevocationLists OPTIONAL,
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* signerInfos SignerInfos
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* }
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* </pre>
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*/
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public class SignedDataParser
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{
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private Asn1SequenceParser _seq;
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private DerInteger _version;
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private object _nextObject;
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private bool _certsCalled;
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private bool _crlsCalled;
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public static SignedDataParser GetInstance(
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object o)
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{
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if (o is Asn1Sequence)
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return new SignedDataParser(((Asn1Sequence)o).Parser);
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if (o is Asn1SequenceParser)
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return new SignedDataParser((Asn1SequenceParser)o);
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throw new IOException("unknown object encountered: " + BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.GetTypeName(o));
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}
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public SignedDataParser(
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Asn1SequenceParser seq)
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{
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this._seq = seq;
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this._version = (DerInteger)seq.ReadObject();
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}
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public DerInteger Version
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{
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get { return _version; }
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}
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public Asn1SetParser GetDigestAlgorithms()
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{
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return (Asn1SetParser)_seq.ReadObject();
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}
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public ContentInfoParser GetEncapContentInfo()
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{
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return new ContentInfoParser((Asn1SequenceParser)_seq.ReadObject());
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}
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public Asn1SetParser GetCertificates()
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{
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_certsCalled = true;
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_nextObject = _seq.ReadObject();
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if (_nextObject is Asn1TaggedObjectParser && ((Asn1TaggedObjectParser)_nextObject).TagNo == 0)
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{
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Asn1SetParser certs = (Asn1SetParser)((Asn1TaggedObjectParser)_nextObject).GetObjectParser(Asn1Tags.Set, false);
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_nextObject = null;
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return certs;
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}
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return null;
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}
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public Asn1SetParser GetCrls()
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{
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if (!_certsCalled)
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throw new IOException("GetCerts() has not been called.");
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_crlsCalled = true;
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if (_nextObject == null)
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{
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_nextObject = _seq.ReadObject();
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}
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if (_nextObject is Asn1TaggedObjectParser && ((Asn1TaggedObjectParser)_nextObject).TagNo == 1)
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{
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Asn1SetParser crls = (Asn1SetParser)((Asn1TaggedObjectParser)_nextObject).GetObjectParser(Asn1Tags.Set, false);
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_nextObject = null;
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return crls;
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}
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return null;
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}
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public Asn1SetParser GetSignerInfos()
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{
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if (!_certsCalled || !_crlsCalled)
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throw new IOException("GetCerts() and/or GetCrls() has not been called.");
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if (_nextObject == null)
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{
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_nextObject = _seq.ReadObject();
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}
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return (Asn1SetParser)_nextObject;
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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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