what-the-bank/sources/org/bouncycastle/asn1/ASN1StreamParser.java

157 lines
6.4 KiB
Java

package org.bouncycastle.asn1;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
/* loaded from: classes6.dex */
public class ASN1StreamParser {
private final InputStream _in;
private final int _limit;
private final byte[][] tmpBuffers;
/* JADX INFO: Access modifiers changed from: package-private */
public ASN1EncodableVector readVector() throws IOException {
ASN1EncodableVector aSN1EncodableVector = new ASN1EncodableVector();
while (true) {
ASN1Encodable readObject = readObject();
if (readObject == null) {
return aSN1EncodableVector;
}
aSN1EncodableVector.add(readObject instanceof InMemoryRepresentable ? ((InMemoryRepresentable) readObject).getLoadedObject() : readObject.toASN1Primitive());
}
}
/* JADX INFO: Access modifiers changed from: package-private */
public ASN1Primitive readTaggedObject(boolean z, int i) throws IOException {
if (!z) {
return new DERTaggedObject(false, i, new DEROctetString(((DefiniteLengthInputStream) this._in).toByteArray()));
}
ASN1EncodableVector readVector = readVector();
return this._in instanceof IndefiniteLengthInputStream ? readVector.size() == 1 ? new BERTaggedObject(true, i, readVector.get(0)) : new BERTaggedObject(false, i, BERFactory.createSequence(readVector)) : readVector.size() == 1 ? new DERTaggedObject(true, i, readVector.get(0)) : new DERTaggedObject(false, i, DERFactory.createSequence(readVector));
}
public ASN1Encodable readObject() throws IOException {
int read = this._in.read();
if (read == -1) {
return null;
}
set00Check(false);
int readTagNumber = ASN1InputStream.readTagNumber(this._in, read);
boolean z = (read & 32) != 0;
int readLength = ASN1InputStream.readLength(this._in, this._limit);
if (readLength < 0) {
if (!z) {
throw new IOException("indefinite-length primitive encoding encountered");
}
ASN1StreamParser aSN1StreamParser = new ASN1StreamParser(new IndefiniteLengthInputStream(this._in, this._limit), this._limit);
return (read & 64) != 0 ? new BERApplicationSpecificParser(readTagNumber, aSN1StreamParser) : (read & 128) != 0 ? new BERTaggedObjectParser(true, readTagNumber, aSN1StreamParser) : aSN1StreamParser.readIndef(readTagNumber);
}
DefiniteLengthInputStream definiteLengthInputStream = new DefiniteLengthInputStream(this._in, readLength);
if ((read & 64) != 0) {
return new DERApplicationSpecific(z, readTagNumber, definiteLengthInputStream.toByteArray());
}
if ((read & 128) != 0) {
return new BERTaggedObjectParser(z, readTagNumber, new ASN1StreamParser(definiteLengthInputStream));
}
if (!z) {
if (readTagNumber == 4) {
return new DEROctetStringParser(definiteLengthInputStream);
}
try {
return ASN1InputStream.createPrimitiveDERObject(readTagNumber, definiteLengthInputStream, this.tmpBuffers);
} catch (IllegalArgumentException e) {
throw new ASN1Exception("corrupted stream detected", e);
}
}
if (readTagNumber == 4) {
return new BEROctetStringParser(new ASN1StreamParser(definiteLengthInputStream));
}
if (readTagNumber == 8) {
return new DERExternalParser(new ASN1StreamParser(definiteLengthInputStream));
}
if (readTagNumber == 16) {
return new DERSequenceParser(new ASN1StreamParser(definiteLengthInputStream));
}
if (readTagNumber == 17) {
return new DERSetParser(new ASN1StreamParser(definiteLengthInputStream));
}
StringBuilder sb = new StringBuilder("unknown tag ");
sb.append(readTagNumber);
sb.append(" encountered");
throw new IOException(sb.toString());
}
ASN1Encodable readIndef(int i) throws IOException {
if (i == 4) {
return new BEROctetStringParser(this);
}
if (i == 8) {
return new DERExternalParser(this);
}
if (i == 16) {
return new BERSequenceParser(this);
}
if (i == 17) {
return new BERSetParser(this);
}
StringBuilder sb = new StringBuilder("unknown BER object encountered: 0x");
sb.append(Integer.toHexString(i));
throw new ASN1Exception(sb.toString());
}
/* JADX INFO: Access modifiers changed from: package-private */
public ASN1Encodable readImplicit(boolean z, int i) throws IOException {
InputStream inputStream = this._in;
if (inputStream instanceof IndefiniteLengthInputStream) {
if (z) {
return readIndef(i);
}
throw new IOException("indefinite-length primitive encoding encountered");
}
if (z) {
if (i == 4) {
return new BEROctetStringParser(this);
}
if (i == 16) {
return new DERSequenceParser(this);
}
if (i == 17) {
return new DERSetParser(this);
}
} else {
if (i == 4) {
return new DEROctetStringParser((DefiniteLengthInputStream) inputStream);
}
if (i == 16) {
throw new ASN1Exception("sets must use constructed encoding (see X.690 8.11.1/8.12.1)");
}
if (i == 17) {
throw new ASN1Exception("sequences must use constructed encoding (see X.690 8.9.1/8.10.1)");
}
}
throw new ASN1Exception("implicit tagging not implemented");
}
private void set00Check(boolean z) {
InputStream inputStream = this._in;
if (inputStream instanceof IndefiniteLengthInputStream) {
((IndefiniteLengthInputStream) inputStream).setEofOn00(z);
}
}
public ASN1StreamParser(byte[] bArr) {
this(new ByteArrayInputStream(bArr), bArr.length);
}
public ASN1StreamParser(InputStream inputStream, int i) {
this._in = inputStream;
this._limit = i;
this.tmpBuffers = new byte[11];
}
public ASN1StreamParser(InputStream inputStream) {
this(inputStream, StreamUtil.findLimit(inputStream));
}
}