Package org.apache.tomcat.util.buf

Class Asn1Parser

java.lang.Object

org.apache.tomcat.util.buf.Asn1Parser

public class Asn1Parser
extends Object

This is a very basic ASN.1 parser that provides the limited functionality required by Tomcat. It is a long way from a complete parser.

TODO: Consider extending/re-writing this parser and refactoring the SpnegoTokenFixer to use it.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	TAG_ATTRIBUTE_BASE
static final int	TAG_INTEGER
static final int	TAG_NULL
static final int	TAG_OCTET_STRING
static final int	TAG_OID
static final int	TAG_SEQUENCE
static final int	TAG_UTF8STRING

Constructor Summary

Constructors

Constructor	Description
Asn1Parser(byte[] source)

Method Summary

Modifier and Type	Method	Description
boolean	eof()
int	getNestedSequenceLevel()
byte[]	parseAttributeAsBytes(int index)
void	parseBytes(byte[] dest)
void	parseFullLength()
BigInteger	parseInt()
int	parseLength()
void	parseNull()
byte[]	parseOctetString()
byte[]	parseOIDAsBytes()
void	parseTag(int tag)
void	parseTagSequence()
String	parseUTF8String()
int	peekTag()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

TAG_INTEGER

public static final int TAG_INTEGER

See Also:

• Constant Field Values

TAG_OCTET_STRING

public static final int TAG_OCTET_STRING

See Also:

• Constant Field Values

TAG_NULL

public static final int TAG_NULL

See Also:

• Constant Field Values

TAG_OID

public static final int TAG_OID

See Also:

• Constant Field Values

TAG_UTF8STRING

public static final int TAG_UTF8STRING

See Also:

• Constant Field Values

TAG_SEQUENCE

public static final int TAG_SEQUENCE

See Also:

• Constant Field Values

TAG_ATTRIBUTE_BASE

public static final int TAG_ATTRIBUTE_BASE

See Also:

• Constant Field Values

Constructor Details

Asn1Parser

public Asn1Parser(byte[] source)

Method Details

eof

public boolean eof()

peekTag

public int peekTag()

parseTagSequence

public void parseTagSequence()

parseTag

public void parseTag(int tag)

parseFullLength

public void parseFullLength()

parseLength

public int parseLength()

parseInt

public BigInteger parseInt()

parseOctetString

public byte[] parseOctetString()

parseNull

public void parseNull()

parseOIDAsBytes

public byte[] parseOIDAsBytes()

parseUTF8String

public String parseUTF8String()

parseAttributeAsBytes

public byte[] parseAttributeAsBytes(int index)

parseBytes

public void parseBytes(byte[] dest)

getNestedSequenceLevel

public int getNestedSequenceLevel()