org.owasp.esapi.codecs
Class MySQLCodec

java.lang.Object
  org.owasp.esapi.codecs.Codec
      org.owasp.esapi.codecs.MySQLCodec

public class MySQLCodec
extends Codec

Implementation of the Codec interface for MySQL strings. See http://mirror.yandex.ru/mirrors/ftp.mysql.com/doc/refman/5.0/en/string-syntax.html for more information.

Since:

June 1, 2007

Author:

Jeff Williams (jeff.williams .at. aspectsecurity.com) Aspect Security

See Also:

Encoder

Field Summary

static int	ANSI_MODE
static int	MYSQL_MODE

Constructor Summary

MySQLCodec(int mode)
Instantiate the MySQL codec

Method Summary

java.lang.Character	decodeCharacter(PushbackString input) Returns the decoded version of the next character from the input string and advances the current character in the PushbackString. Returns the decoded version of the character starting at index, or null if no decoding is possible.
java.lang.String	encodeCharacter(char[] immune, java.lang.Character c) Default implementation that should be overridden in specific codecs. Returns quote-encoded character

Methods inherited from class org.owasp.esapi.codecs.Codec

containsCharacter, decode, encode, getHexForNonAlphanumeric, toHex, toOctal

Methods inherited from class java.lang.Object

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

Field Detail

MYSQL_MODE

public static final int MYSQL_MODE

See Also:

Constant Field Values

ANSI_MODE

public static final int ANSI_MODE

See Also:

Constant Field Values

Constructor Detail

MySQLCodec

public MySQLCodec(int mode)

Instantiate the MySQL codec

Parameters:

mode - Mode has to be one of {MYSQL_MODE|ANSI_MODE} to allow correct encoding

Method Detail

encodeCharacter

public java.lang.String encodeCharacter(char[] immune,
                                        java.lang.Character c)

Default implementation that should be overridden in specific codecs. Returns quote-encoded character

Overrides:

encodeCharacter in class Codec

Parameters:

immune -

c - the Character to encode

Returns:

the encoded Character

decodeCharacter

public java.lang.Character decodeCharacter(PushbackString input)

Returns the decoded version of the next character from the input string and advances the current character in the PushbackString. If the current character is not encoded, this method MUST reset the PushbackString. Returns the decoded version of the character starting at index, or null if no decoding is possible. Formats all are legal (case sensitive) In ANSI_MODE '' decodes to ' In MYSQL_MODE \x decodes to x (or a small list of specials)

Overrides:

decodeCharacter in class Codec

Parameters:

input - the Character to decode

Returns:

the decoded Character