Package eu.emi.security.authn.x509.helpers.proxy

Class ProxyAddressRestrictionData

java.lang.Object
org.bouncycastle.asn1.ASN1Object
eu.emi.security.authn.x509.helpers.proxy.ProxyAddressRestrictionData
All Implemented Interfaces:
org.bouncycastle.asn1.ASN1Encodable, org.bouncycastle.util.Encodable
public class ProxyAddressRestrictionData extends org.bouncycastle.asn1.ASN1Object
An utility class for defining the allowed address space, used both to define the source and target restrictions. The format is: 
 iGTFProxyRestrictFrom ::= NameConstraints
 iGTFProxyRestrictTarget ::= NameConstraints
  
 NameConstraints::= SEQUENCE {
            permittedSubtrees       [0]     GeneralSubtrees OPTIONAL,
            excludedSubtrees        [1]     GeneralSubtrees OPTIONAL }
 
 GeneralSubtrees ::= SEQUENCE SIZE (1..MAX) OF GeneralSubtree
 
 GeneralSubtree ::= SEQUENCE {
            base                    GeneralName,
            minimum         [0]     BaseDistance DEFAULT 0,
            maximum         [1]     BaseDistance OPTIONAL }
 
 BaseDistance ::= INTEGER (0..MAX)
 
 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 }
And in this class only the IPAddress as a IP address - netmask combination is supported.
Author:
joni.hahkala@cern.ch, K. Benedyczak

  • Field Details

  • Constructor Details

    • ProxyAddressRestrictionData

      public ProxyAddressRestrictionData(byte[] bytes) throws IOException
      Parses the restriction data from byte array.
      Parameters:
      bytes - The byte array to parse.
      Throws:
      IOException - In case there is a problem parsing the structure.

    • ProxyAddressRestrictionData

      public ProxyAddressRestrictionData()
      Constructor to generate an empty ProxyRestrictionData object for creating new restrictions. Notice that putting an empty proxy restriction into a certificate means that there are no permitted IP spaces, meaning the proxy should be rejected everywhere.

  • Method Details

    • getInstance

      public static ProxyAddressRestrictionData getInstance(X509Certificate certificate, boolean source) throws IOException
      Creates an instance of the extension of the given type from a certificate.
      Parameters:
      certificate - certificate
      source - whether to create object representing the source restriction (if true) or target (if value is false).
      Returns:
      null if the certificate does not have the required extension, initialized object otherwise.
      Throws:
      IOException - IO exception

    • addPermittedIPAddressWithNetmask

      public void addPermittedIPAddressWithNetmask(String address)
      Adds a new permitted IP addressSpace to the data structure.
      Parameters:
      address - The address space to add to the allowed ip address space. Example of the format: 192.168.0.0/16. Which equals a 192.168.0.0 with a net mask 255.255.0.0. A single IP address can be defined as xxx.xxx.xxx.xxx/32.
      It is also possible to provide IPv6 addresses. See RFC4632.

    • addExcludedIPAddressWithNetmask

      public void addExcludedIPAddressWithNetmask(String address)
      Adds a new excluded IP addressSpace to the data structure.
      Parameters:
      address - The address space to add to the allowed ip address space. Example of the format: 192.168.0.0/16. Which equals a 192.168.0.0 with a net mask 255.255.0.0. A single IP address can be defined as xxx.xxx.xxx.xxx/32.
      It is also possible to provide IPv6 addresses. See RFC4632.

    • toASN1Primitive

      public org.bouncycastle.asn1.ASN1Primitive toASN1Primitive()
      Returns the NameConstraints structure of the restrictions.
      Specified by:
      toASN1Primitive in interface org.bouncycastle.asn1.ASN1Encodable
      Specified by:
      toASN1Primitive in class org.bouncycastle.asn1.ASN1Object
      Returns:
      The DERSequence containing the NameConstraints structure.

    • getIPSpaces

      public byte[][][] getIPSpaces()
      Returns a Vector of Vectors of IP address spaces as defined in rfc 4632.
      Returns:
      The array of arrays of string representation of address spaces defined in this structure. The first element in the array lists the permitted IP address spaces and the second the excluded IP spaces. In format ipaddress/netmask bytes. Example {137,138,0,0,255,255,0,0}. Array always contains two items, but they can be of length 0.
      See Also:

    • getPermittedAddresses

      public String[] getPermittedAddresses()

    • getExcludedAddresses

      public String[] getExcludedAddresses()

    • convert2sr

      public static String convert2sr(byte[] src)

    • convert2strings

      public static String[] convert2strings(byte[][] src)