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.
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Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionConstructor to generate an empty ProxyRestrictionData object for creating new restrictions.ProxyAddressRestrictionData
(byte[] bytes) Parses the restriction data from byte array. -
Method Summary
Modifier and TypeMethodDescriptionvoid
addExcludedIPAddressWithNetmask
(String address) Adds a new excluded IP addressSpace to the data structure.void
addPermittedIPAddressWithNetmask
(String address) Adds a new permitted IP addressSpace to the data structure.private static void
addTaggedSequenceOfSubtrees
(int tagNo, List<org.bouncycastle.asn1.x509.GeneralSubtree> subtrees, org.bouncycastle.asn1.ASN1EncodableVector asn1Vector) Adds, with the given tag, a DER sequence object that contains the GeneralSubtree objects into the ASN1Vector.static String
convert2sr
(byte[] src) static String[]
convert2strings
(byte[][] src) private static void
copyCondSequenceToVector
(org.bouncycastle.asn1.ASN1Sequence subSeq, List<org.bouncycastle.asn1.x509.GeneralSubtree> vector) This method copies the contents of a generalSubtrees sequence into the given vector.String[]
static ProxyAddressRestrictionData
getInstance
(X509Certificate certificate, boolean source) Creates an instance of the extension of the given type from a certificate.byte[][][]
Returns a Vector of Vectors of IP address spaces as defined in rfc 4632.String[]
private static byte[][]
subtreesIntoArray
(List<org.bouncycastle.asn1.x509.GeneralSubtree> subtrees) Generates a string array of IP address spaces from a list of GeneralSubtrees.org.bouncycastle.asn1.ASN1Primitive
Returns the NameConstraints structure of the restrictions.Methods inherited from class org.bouncycastle.asn1.ASN1Object
encodeTo, encodeTo, equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode
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Field Details
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SOURCE_RESTRICTION_OID
- See Also:
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TARGET_RESTRICTION_OID
- See Also:
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permittedGeneralSubtrees
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excludedGeneralSubtrees
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Constructor Details
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ProxyAddressRestrictionData
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.
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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.
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Method Details
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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
- certificatesource
- 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
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copyCondSequenceToVector
private static void copyCondSequenceToVector(org.bouncycastle.asn1.ASN1Sequence subSeq, List<org.bouncycastle.asn1.x509.GeneralSubtree> vector) This method copies the contents of a generalSubtrees sequence into the given vector. Static to protect the internal data structures from access.- Parameters:
subSeq
- the subsequence to copy.vector
- The target to copy the parsed GeneralSubtree objects.
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addPermittedIPAddressWithNetmask
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.
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addExcludedIPAddressWithNetmask
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.
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toASN1Primitive
public org.bouncycastle.asn1.ASN1Primitive toASN1Primitive()Returns the NameConstraints structure of the restrictions.- Specified by:
toASN1Primitive
in interfaceorg.bouncycastle.asn1.ASN1Encodable
- Specified by:
toASN1Primitive
in classorg.bouncycastle.asn1.ASN1Object
- Returns:
- The DERSequence containing the NameConstraints structure.
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addTaggedSequenceOfSubtrees
private static void addTaggedSequenceOfSubtrees(int tagNo, List<org.bouncycastle.asn1.x509.GeneralSubtree> subtrees, org.bouncycastle.asn1.ASN1EncodableVector asn1Vector) Adds, with the given tag, a DER sequence object that contains the GeneralSubtree objects into the ASN1Vector.- Parameters:
tagNo
- The tag to tag the object.subtrees
- The Vector of GeneralSubtree objects. Null will throw NullPointerException. An empty Vector will not be added.asn1Vector
- The vector to add the subtrees sequence with the given tag.
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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:
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getPermittedAddresses
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getExcludedAddresses
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subtreesIntoArray
Generates a string array of IP address spaces from a list of GeneralSubtrees.- Parameters:
subtrees
- The list of GeneralSubtrees to parse. Null as input will return null.- Returns:
- the array of IP address spaces.
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convert2sr
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convert2strings
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