eu.emi.security.authn.x509.helpers.proxy
Class ProxyTracingExtension

java.lang.Object
  extended by org.bouncycastle.asn1.ASN1Encodable
      extended by eu.emi.security.authn.x509.helpers.proxy.ProxyTracingExtension
All Implemented Interfaces:
DEREncodable

public class ProxyTracingExtension
extends ASN1Encodable

A class for generating and parsing the proxy tracing extensions.
See OIDProxyDelegationTracing documentation.
The proxy tracing extension format is below. It is used to trace the proxy delegation chain by putting in each proxy the url of the service accepting the delegation and the url of the client initiating it. Often the delegation is from service to service, in which case it is easy to use the url of the service. If the initiator of the delegation is a user, then the client should put an url containing the client program as the scheme, the host name or IP address and possibly the username as the path.
At the moment only the URI is supported.

  iGTFProxyTracingIssuerName ::= GeneralNames
  iGTFProxyTracingSubjectName ::= GeneralNames
  
  GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName
  
  GeneralName ::= CHOICE {
           otherName                       [0]     OtherName,
           rfc822Name                      [1]     IA5String,
           dNSName                         [2]     IA5String,
           x400Address                     [3]     ORAddress,
           directoryName                   [4]     Name,
           ediPartyName                    [5]     EDIPartyName,
           uniformResourceIdentifier       [6]     IA5String,
           iPAddress                       [7]     OCTET STRING,
           registeredID                    [8]     OBJECT IDENTIFIER}
  
  OtherName ::= SEQUENCE {
           type-id    OBJECT IDENTIFIER,
           value      [0] EXPLICIT ANY DEFINED BY type-id }
  
  EDIPartyName ::= SEQUENCE {
           nameAssigner            [0]     DirectoryString OPTIONAL,
           partyName               [1]     DirectoryString }
  
  DirectoryString ::= CHOICE {
     teletexString           TeletexString (SIZE (1..maxSize),
     printableString         PrintableString (SIZE (1..maxSize)),
     universalString         UniversalString (SIZE (1..maxSize)),
     bmpString               BMPString (SIZE(1..maxSIZE))
  }
 

Author:
joni.hahkala@cern.ch, K. Benedyczak

Field Summary
static int ISSUER_EXTENSION
          The OID to identify issuer proxy tracing type.
static String PROXY_TRACING_ISSUER_EXTENSION_OID
          The OID to identify issuer proxy tracing extension.
static String PROXY_TRACING_SUBJECT_EXTENSION_OID
          The OID to identify subject proxy tracing extension.
static int SUBJECT_EXTENSION
          The OID to identify issuer proxy tracing type.
 
Fields inherited from class org.bouncycastle.asn1.ASN1Encodable
BER, DER
 
Constructor Summary
ProxyTracingExtension(byte[] bytes)
          Parses the information in the byte array (GeneralNames ASN1 sequence of GeneralName) into a proxy tracing extension object.
ProxyTracingExtension(String url)
          Generates a new proxy tracing item from the URL.
 
Method Summary
static ProxyTracingExtension getInstance(X509Certificate cert, boolean issuer)
          Returns the URL of the proxy tracing issuer if present.
 GeneralNames getNames()
          Returns the general names structure that holds the trace information.
 String getURL()
          Returns the URL inside the proxy tracing data structure.
 DERObject toASN1Object()
          
 
Methods inherited from class org.bouncycastle.asn1.ASN1Encodable
equals, getDEREncoded, getDERObject, getEncoded, getEncoded, hashCode
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

PROXY_TRACING_ISSUER_EXTENSION_OID

public static final String PROXY_TRACING_ISSUER_EXTENSION_OID
The OID to identify issuer proxy tracing extension.

See Also:
Constant Field Values

PROXY_TRACING_SUBJECT_EXTENSION_OID

public static final String PROXY_TRACING_SUBJECT_EXTENSION_OID
The OID to identify subject proxy tracing extension.

See Also:
Constant Field Values

ISSUER_EXTENSION

public static final int ISSUER_EXTENSION
The OID to identify issuer proxy tracing type.

See Also:
Constant Field Values

SUBJECT_EXTENSION

public static final int SUBJECT_EXTENSION
The OID to identify issuer proxy tracing type.

See Also:
Constant Field Values
Constructor Detail

ProxyTracingExtension

public ProxyTracingExtension(String url)
Generates a new proxy tracing item from the URL.

Parameters:
url - The URL to identify the issuer or the subject.

ProxyTracingExtension

public ProxyTracingExtension(byte[] bytes)
                      throws IOException
Parses the information in the byte array (GeneralNames ASN1 sequence of GeneralName) into a proxy tracing extension object.

Parameters:
bytes - The bytes of ASN1 encoded proxy tracing extension.
Throws:
IOException - In case the byte array does not contain a valid ASN1 encoded proxy tracing extension.
Method Detail

getInstance

public static ProxyTracingExtension getInstance(X509Certificate cert,
                                                boolean issuer)
                                         throws IOException
Returns the URL of the proxy tracing issuer if present.

Returns:
The proxy tracing issuer URL in String format, or null if no extension was found or it was empty.
Throws:
IOException - Thrown in case the parsing of the information failed.

getURL

public String getURL()
Returns the URL inside the proxy tracing data structure.

Returns:
The URL in String format.

getNames

public GeneralNames getNames()
Returns the general names structure that holds the trace information.

Returns:
The generalNames object that has the trace information.

toASN1Object

public DERObject toASN1Object()

Specified by:
toASN1Object in class ASN1Encodable


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