uk.ac.ed.epcc.webapp.ssh

Class AuthorizedKeyValidator

java.lang.Object

uk.ac.ed.epcc.webapp.ssh.AuthorizedKeyValidator

All Implemented Interfaces:

FieldValidator<java.lang.String>

Direct Known Subclasses:

RsaKeyValidator

public class AuthorizedKeyValidator
extends java.lang.Object
implements FieldValidator<java.lang.String>

class to verify the options string in a openssh AuthorizedKeys file

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String[]	algs
static java.lang.String[]	arg_options options keywords that take arguments
static java.lang.String[]	options option keywords without arguments

Constructor Summary

Constructors

Constructor and Description
AuthorizedKeyValidator()

Method Summary

Modifier and Type	Method and Description
java.lang.String	fingerprint(java.lang.String key)
java.lang.String	fingerprint2(java.lang.String key)
java.lang.String	getComment(java.lang.String key) return the trailing comment from a key If the key fails to parse null is returned.
static java.lang.String	getOptionPattern()
java.lang.String	normalise(java.lang.String key) convert a key to normalised form (without options or comment) If the key fails to parse null is returned.
void	validate(java.lang.String key)
protected void	validateBlock(uk.ac.ed.epcc.webapp.ssh.PublicKeyReaderUtil.SSH2DataBuffer buf) Extension point validator.

Methods inherited from class java.lang.Object

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

Field Detail

options

public static final java.lang.String[] options

option keywords without arguments

arg_options

public static final java.lang.String[] arg_options

options keywords that take arguments

algs

public static final java.lang.String[] algs

Constructor Detail

AuthorizedKeyValidator

public AuthorizedKeyValidator()

Method Detail

getOptionPattern

public static java.lang.String getOptionPattern()

validate

public void validate(java.lang.String key)
              throws ValidateException

Specified by:

validate in interface FieldValidator<java.lang.String>

Throws:

ValidateException

normalise

public java.lang.String normalise(java.lang.String key)
                           throws ParseException

convert a key to normalised form (without options or comment) If the key fails to parse null is returned.

Parameters:

key -

Returns:

normalised key or null

Throws:

ParseException

fingerprint

public java.lang.String fingerprint(java.lang.String key)
                             throws ParseException,
                                    java.security.NoSuchAlgorithmException

Throws:

ParseException

java.security.NoSuchAlgorithmException

fingerprint2

public java.lang.String fingerprint2(java.lang.String key)
                              throws ParseException,
                                     java.security.NoSuchAlgorithmException

Throws:

ParseException

java.security.NoSuchAlgorithmException

getComment

public java.lang.String getComment(java.lang.String key)

return the trailing comment from a key If the key fails to parse null is returned.

Parameters:

key -

Returns:

comment or null;

validateBlock

protected void validateBlock(uk.ac.ed.epcc.webapp.ssh.PublicKeyReaderUtil.SSH2DataBuffer buf)
                      throws ValidateException

Extension point validator. This can add additional restrictions on the algorithm or the key itself

Parameters:

alg -

Throws:

ValidateException