org.bouncycastle.asn1.x509.DisplayText Maven / Gradle / Ivy
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* @see PolicyQualifierInfo * @see PolicyInformation */ public class DisplayText extends ASN1Object implements ASN1Choice { /** * Constant corresponding to ia5String encoding. * */ public static final int CONTENT_TYPE_IA5STRING = 0; /** * Constant corresponding to bmpString encoding. * */ public static final int CONTENT_TYPE_BMPSTRING = 1; /** * Constant corresponding to utf8String encoding. * */ public static final int CONTENT_TYPE_UTF8STRING = 2; /** * Constant corresponding to visibleString encoding. * */ public static final int CONTENT_TYPE_VISIBLESTRING = 3; /** * Describe constant DISPLAY_TEXT_MAXIMUM_SIZE here. * */ public static final int DISPLAY_TEXT_MAXIMUM_SIZE = 200; int contentType; ASN1String contents; /** * Creates a new DisplayText instance. * * @param type the desired encoding type for the text. * @param text the text to store. Strings longer than 200 * characters are truncated. */ public DisplayText(int type, String text) { if (text.length() > DISPLAY_TEXT_MAXIMUM_SIZE) { // RFC3280 limits these strings to 200 chars // truncate the string text = text.substring (0, DISPLAY_TEXT_MAXIMUM_SIZE); } contentType = type; switch (type) { case CONTENT_TYPE_IA5STRING: contents = new DERIA5String(text); break; case CONTENT_TYPE_UTF8STRING: contents = new DERUTF8String(text); break; case CONTENT_TYPE_VISIBLESTRING: contents = new DERVisibleString(text); break; case CONTENT_TYPE_BMPSTRING: contents = new DERBMPString(text); break; default: contents = new DERUTF8String(text); break; } } /** * Creates a new DisplayText instance. * * @param text the text to encapsulate. Strings longer than 200 * characters are truncated. */ public DisplayText(String text) { // by default use UTF8String if (text.length() > DISPLAY_TEXT_MAXIMUM_SIZE) { text = text.substring(0, DISPLAY_TEXT_MAXIMUM_SIZE); } contentType = CONTENT_TYPE_UTF8STRING; contents = new DERUTF8String(text); } /** * Creates a new DisplayText instance. *package org.bouncycastle.asn1.x509; import org.bouncycastle.asn1.ASN1BMPString; import org.bouncycastle.asn1.ASN1Choice; import org.bouncycastle.asn1.ASN1IA5String; import org.bouncycastle.asn1.ASN1Object; import org.bouncycastle.asn1.ASN1Primitive; import org.bouncycastle.asn1.ASN1String; import org.bouncycastle.asn1.ASN1TaggedObject; import org.bouncycastle.asn1.ASN1UTF8String; import org.bouncycastle.asn1.ASN1VisibleString; import org.bouncycastle.asn1.DERBMPString; import org.bouncycastle.asn1.DERIA5String; import org.bouncycastle.asn1.DERUTF8String; import org.bouncycastle.asn1.DERVisibleString; /** * DisplayTextclass, used in * CertificatePolicies X509 V3 extensions (in policy qualifiers). * *It stores a string in a chosen encoding. * * DisplayText ::= CHOICE { * ia5String IA5String (SIZE (1..200)), * visibleString VisibleString (SIZE (1..200)), * bmpString BMPString (SIZE (1..200)), * utf8String UTF8String (SIZE (1..200)) } *
Useful when reading back a DisplayText class
* from it's ASN1Encodable/DEREncodable form.
*
* @param de a DEREncodable instance.
*/
private DisplayText(ASN1String de)
{
contents = de;
if (de instanceof ASN1UTF8String)
{
contentType = CONTENT_TYPE_UTF8STRING;
}
else if (de instanceof ASN1BMPString)
{
contentType = CONTENT_TYPE_BMPSTRING;
}
else if (de instanceof ASN1IA5String)
{
contentType = CONTENT_TYPE_IA5STRING;
}
else if (de instanceof ASN1VisibleString)
{
contentType = CONTENT_TYPE_VISIBLESTRING;
}
else
{
throw new IllegalArgumentException("unknown STRING type in DisplayText");
}
}
public static DisplayText getInstance(Object obj)
{
if (obj instanceof ASN1String)
{
return new DisplayText((ASN1String)obj);
}
else if (obj == null || obj instanceof DisplayText)
{
return (DisplayText)obj;
}
throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
}
public static DisplayText getInstance(
ASN1TaggedObject obj,
boolean explicit)
{
return getInstance(obj.getObject()); // must be explicitly tagged
}
public ASN1Primitive toASN1Primitive()
{
return (ASN1Primitive)contents;
}
/**
* Returns the stored String object.
*
* @return the stored text as a String.
*/
public String getString()
{
return contents.getString();
}
}