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113 lines
2.5 KiB
Java
113 lines
2.5 KiB
Java
package org.thoughtcrime.bouncycastle.asn1;
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import java.io.IOException;
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public class DERBoolean
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extends ASN1Object
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{
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byte value;
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public static final DERBoolean FALSE = new DERBoolean(false);
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public static final DERBoolean TRUE = new DERBoolean(true);
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/**
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* return a boolean from the passed in object.
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*
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* @exception IllegalArgumentException if the object cannot be converted.
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*/
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public static DERBoolean getInstance(
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Object obj)
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{
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if (obj == null || obj instanceof DERBoolean)
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{
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return (DERBoolean)obj;
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}
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if (obj instanceof ASN1OctetString)
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{
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return new DERBoolean(((ASN1OctetString)obj).getOctets());
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}
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if (obj instanceof ASN1TaggedObject)
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{
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return getInstance(((ASN1TaggedObject)obj).getObject());
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}
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throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
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}
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/**
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* return a DERBoolean from the passed in boolean.
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*/
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public static DERBoolean getInstance(
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boolean value)
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{
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return (value ? TRUE : FALSE);
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}
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/**
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* return a Boolean from a tagged object.
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*
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* @param obj the tagged object holding the object we want
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* @param explicit true if the object is meant to be explicitly
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* tagged false otherwise.
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* @exception IllegalArgumentException if the tagged object cannot
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* be converted.
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*/
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public static DERBoolean getInstance(
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ASN1TaggedObject obj,
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boolean explicit)
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{
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return getInstance(obj.getObject());
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}
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public DERBoolean(
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byte[] value)
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{
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this.value = value[0];
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}
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public DERBoolean(
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boolean value)
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{
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this.value = (value) ? (byte)0xff : (byte)0;
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}
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public boolean isTrue()
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{
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return (value != 0);
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}
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void encode(
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DEROutputStream out)
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throws IOException
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{
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byte[] bytes = new byte[1];
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bytes[0] = value;
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out.writeEncoded(BOOLEAN, bytes);
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}
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protected boolean asn1Equals(
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DERObject o)
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{
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if ((o == null) || !(o instanceof DERBoolean))
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{
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return false;
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}
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return (value == ((DERBoolean)o).value);
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}
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public int hashCode()
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{
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return value;
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}
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public String toString()
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{
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return (value != 0) ? "TRUE" : "FALSE";
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}
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}
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