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Differences from draft-ietf-weirds-json-response-01.txt
Network Working Group A. Newton
Internet-Draft ARIN
Intended status: Standards Track S. Hollenbeck
Expires: July 7, 2013 Verisign Labs
January 3, 2013
JSON Responses for the Registration Data Access Protocol (RDAP)
draft-ietf-weirds-json-response-02
Abstract
This document describes JSON data structures representing
registration information maintained by Regional Internet Registries
(RIRs) and Domain Name Registries (DNRs). These data structures are
used to form Registration Data Access Protocol (RDAP) query
responses.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on July 7, 2013.
Copyright Notice
Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology and Definitions . . . . . . . . . . . . . . . . . 5
3. Common Data Types . . . . . . . . . . . . . . . . . . . . . . 6
4. Use of JSON . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1. Signaling . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2. Naming . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5. Common Data Structures . . . . . . . . . . . . . . . . . . . . 10
5.1. RDAP Conformance . . . . . . . . . . . . . . . . . . . . . 10
5.2. Notices . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3. Language Identifier . . . . . . . . . . . . . . . . . . . 11
5.4. An Example . . . . . . . . . . . . . . . . . . . . . . . . 12
6. Object Class Links . . . . . . . . . . . . . . . . . . . . . . 13
7. The Entity Object Class . . . . . . . . . . . . . . . . . . . 14
7.1. The RIR Entity Object Class . . . . . . . . . . . . . . . 15
7.2. The DNR Entity Object Class . . . . . . . . . . . . . . . 16
8. The Nameserver Object Class . . . . . . . . . . . . . . . . . 19
9. The Domain Object Class . . . . . . . . . . . . . . . . . . . 21
9.1. The RIR Domain Object Class . . . . . . . . . . . . . . . 21
9.2. The DNR Domain Object Class . . . . . . . . . . . . . . . 24
10. The IP Network Object Class . . . . . . . . . . . . . . . . . 29
11. Autonomous System Number Entity Object Class . . . . . . . . . 32
12. Error Response Body . . . . . . . . . . . . . . . . . . . . . 35
13. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 36
14. Internationalization Considerations . . . . . . . . . . . . . 37
14.1. Character Encoding . . . . . . . . . . . . . . . . . . . . 37
14.2. URIs and IRIs . . . . . . . . . . . . . . . . . . . . . . 37
14.3. Language Tags . . . . . . . . . . . . . . . . . . . . . . 37
14.4. Internationalized Domain Names . . . . . . . . . . . . . . 37
15. Contributing Authors and Acknowledgements . . . . . . . . . . 38
16. References . . . . . . . . . . . . . . . . . . . . . . . . . . 39
16.1. Normative References . . . . . . . . . . . . . . . . . . . 39
16.2. Informative References . . . . . . . . . . . . . . . . . . 40
Appendix A. Suggested Values . . . . . . . . . . . . . . . . . . 41
A.1. Status . . . . . . . . . . . . . . . . . . . . . . . . . . 41
A.2. Roles . . . . . . . . . . . . . . . . . . . . . . . . . . 41
A.3. Variant Relations . . . . . . . . . . . . . . . . . . . . 42
Appendix B. Suggested Data Modeling with the Entity Object
Class . . . . . . . . . . . . . . . . . . . . . . . . 43
B.1. Registrants and Contacts . . . . . . . . . . . . . . . . . 43
B.2. Registrars . . . . . . . . . . . . . . . . . . . . . . . . 44
Appendix C. IDN Query and Response Model . . . . . . . . . . . . 46
Appendix D. Postal Addresses vs Location . . . . . . . . . . . . 47
Appendix E. Motivations for Using JSON . . . . . . . . . . . . . 48
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Appendix F. Changelog . . . . . . . . . . . . . . . . . . . . . . 49
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 51
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1. Introduction
This document describes responses in the JSON [RFC4627] format for
the RESTful web queries as defined by UNIFIED-RDAP-QUERY
[I-D.ietf-weirds-rdap-query].
The data model for the responses consists of two major categories:
responses returned by Regional Internet Registries (RIRs) for
registrations data related to IP addresses, reverse DNS names, and
Autonomous System numbers; and responses returned by Domain Name
Registries (DNRs) for registration data related to forward DNS names.
The RIR object classes are a proper subset of the DNR object classes.
The current division between RIR and DNR object classes is given to
illustrate an expectation of what data may be expected from an RIR vs
a DNR. However, implementers should be aware that RIRs are not
limited to the data in the RIR object classes (as an example, some
RIRs have a notion of "status" for entities as defined in the DNR
entity object class and may at some point start publishing that
data).
Object classes defined in the document represent a minimal set of
what a compliant client/server MUST understand to function correctly,
however some deployments may want to include additional object
classes to suit individual needs. Anticipating this need for
extension, Section 4.2 of this document defines a mechanism for
extending the JSON (objects) that are described in this document.
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2. Terminology and Definitions
The following list describes terminology and definitions used
throughout this document:
DNR: "Domain Name Registry".
member: data found with in an object as defined by JSON
[RFC4627].
object: a data structure as defined by JSON [RFC4627].
object class: the definition of members that may be found in JSON
objects described in this document.
object instance: an instantiation or specific instance of an object
class.
RDAP: "Registration Data Access Protocol".
RIR: "Regional Internet Registry".
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3. Common Data Types
JSON [RFC4627] defines the data types of a number, character string,
boolean, array, object and null. This section describes the
semantics and/or syntax reference for data types used in this
document derived from the JSON character string.
'handle': DNRs and RIRs have registry-unique identifiers that may
be used to specifically reference an object instance. The
semantics of this data type as found in this document is to be a
registry-unique reference to the closest enclosing object where
the value is found. The data type names 'registryId', 'roid',
'nic-handle', 'registrationNo', etc... are terms often synonymous
with this data type. In this document, the term 'handle' is used.
The term exposed to users by clients is a presentation issue
beyond the scope of this document.
IPv4 addresses: The representation of IPv4 addresses in this
document uses the dotted-decimal notation described in [RFC1166].
An example of this textual representation is '192.0.2.0'.
IPv6 addresses: The representation of IPv6 addresses in this
document follow the forms outlined in [RFC5952]. An example of
this textual representation is '2001:db8::1:0:0:1'.
country codes: Where the identity of a geopolitical nation or
country is needed, these identities are represented with the
alpha-2 or 2 character country code designation as defined in
[ISO.3166.1988]. The alpha-2 representation is used because it is
freely available whereas the alpha-3 and numeric-3 standards are
not.
domain names: Textual representations of DNS names follow the rules
set forth in [RFC4343], specifically the case insensitivity and
character escaping rules. Trailing periods are optional for both
input and output.
email addresses: Textual representations of email addresses follow
the syntax defined in [RFC5322].
dates and times: The syntax for values denoting dates and times is
defined in [RFC3339].
URIs: The syntax for values denoting a Uniform Resource Identifier
(URI) is defined by [RFC3986].
Many of the object classes defined in this document contain values
representing telephone numbers. Servers are encouraged to provide
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those telephone numbers in [E164] format, however clients MUST be
prepared for telephone numbers that do not adhere to the [E164]
standard.
Postal addresses also appear in some of the object classes. This
document specifies no standard for postal addresses as many
registries would have to undergo severe data cleanup efforts to meet
such standards.
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4. Use of JSON
4.1. Signaling
Clients may signal their desire for JSON using the "application/json"
media type or the more specific media type "application/rdap" as
specified in Section 13.
4.2. Naming
Clients processing JSON [RFC4627] responses SHOULD ignore values
associated with unrecognized names. Servers MAY insert values
signified by names into the JSON responses which are not specified in
this document. Insertion of unspecified values into JSON responses
SHOULD have names prefixed with a short identifier followed by an
underscore followed by a meaningful name. The full JSON name, the
prefix plus the underscore plus the meaningful name, SHOULD adhere to
the character and name limitations of the prefix registry described
in [I-D.ietf-weirds-using-http].
Consider the following JSON response with JSON names. "handle" and
"remarks" are JSON names specified in this document.
{
"handle" : "ABC123",
"remarks" :
[
"she sells seas shells",
"down by the seashore"
]
}
Figure 1
If The Registry of the Moon desires to express information not found
in this specification, it might select "lunarNic" as its identifying
prefix and insert, as an example, the name
"lunarNic_beforeOneSmallStep" to signify registrations occuring
before the first moon landing and the name
"lunarNic_harshMistressNotes" containing other descriptive text.
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Consider the following JSON response with JSON names, some of which
should be ignored by clients without knowledge of their meaning.
{
"handle" : "ABC123",
"lunarNic_beforeOneSmallStep" : "TRUE THAT!",
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"lunarNic_harshMistressNotes" :
[
"In space,",
"nobody can hear you scream."
]
}
Figure 2
Insertion of unrecognized names ignored by clients may also be used
for future revisions to this specification.
Clients processing JSON responses MUST be prepared for values
specified in this document to be absent from a response as no JSON
value listed is required to appear in a response. In other words,
servers MAY remove values as is needed by the policies of the server
operator.
Finally, all JSON names specified in this document are case
sensitive. Both servers and clients MUST transmit and process them
according to the character casing specified.
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5. Common Data Structures
This section defines three common data structures to be used in
respones. Each of these datatypes MAY appear within any object class
of a response, but the intended purpose is that they will be mostly
used in the top-most object class of a response.
5.1. RDAP Conformance
The first data structure is named "rdapConformance" and is simply an
array of strings, each providing a hint as to the specifications used
in the construction of the response.
An example rdapConformance data structure.
"rdapConformance" :
[
"rdap_level_0"
]
Figure 3
The string literal "rdap_level_0" signifies conformance with this
specification. When custom JSON values are inserted into responses,
conformance to those custom specifications should use a string
prefixed with the appropriate identifier from the IANA prefix
identifier registry specified in [I-D.ietf-weirds-using-http]. For
example, if the fictional Registry of the Moon want to signify that
their JSON responses are conformant with their registered extensions,
the string used might be "lunarNIC_level_0".
Example rdapConformance structure with custom extensions noted.
"rdapConformance" :
[
"rdap_level_0",
"lunarNic_level_0"
]
Figure 4
5.2. Notices
The second data structure is named "notices" and is an array of
objects. Each object contains a "title" string representing the
title of the notice object, an array of strings named "description"
for the purposes of conveying any descriptive text about the notice,
and an optional "links" object as described in Section 6.
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An exmaple of the notices data structure.
"notices" :
[
{
"title" : "Terms of Use",
"description" :
[
"This service is subject to The Registry of the Moons",
"terms of service."
],
"links" :
[
{
"value" : "http://example.net/entity/XXXX",
"rel" : "alternate",
"type" : "text/html",
"href" : "http://www.example.com/terms_of_use.html"
}
]
}
]
Figure 5
5.3. Language Identifier
The third data structure is a simple JSON name/value of "lang" with a
string containing a language identifier as described by [RFC5646].
"lang" : "mn-Cyrl-MN"
Figure 6
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5.4. An Example
This is an example response with both rdapConformance and notices
embedded.
{
"rdapConformance" :
[
"rdap_level_0"
],
"notices" :
[
{
"title" : "Content Redacted",
"description" :
[
"Without full authorization, content has been redacted.",
"Sorry, dude!"
],
"links" :
[
{
"value" : "http://example.net/ip/192.0.2.0/24",
"rel" : "alternate",
"type" : "text/html",
"href" : "http://www.example.com/redaction_policy.html"
}
]
}
],
"lang" : "en",
"startAddress" : "192.0.2.0",
"endAddress" : "192.0.2.255",
"handle" : "XXXX-RIR",
"ipVersion" : 4,
"name": "NET-RTR-1",
"description" : [ "A network used for example documentation" ],
"parentHandle" : "YYYY-RIR",
"remarks" :
[
"she sells seas shells",
"down by the seashore"
]
}
Figure 7
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6. Object Class Links
Each object class defined in this document may have links to other
resources on the Internet. The relationship of these links is
defined by the IANA registry described by [RFC5988].
The following is an example of the link structure of object classes
{
"value" : "http://example.com/context_uri",
"rel" : "self",
"href" : "http://example.com/target_uri",
"hreflang" : [ "en", "ch" ],
"title" : [ "title1", "title2" ],
"media" : "screen",
"type" : "application/json"
}
Figure 8
The JSON name/values of "rel", "href", "hreflang", "title", "media",
and "type" correspond to values found in Section 5 of [RFC5988]. The
"value" JSON value is the context URI as described by [RFC5988]. The
"value", "rel", and "href" JSON values MUST be specified. All other
JSON values are optional.
Within an object class, these structures are to be in an array named
"links".
This is an example of the "links" array as it might be found in an
object class.
"links" :
[
{
"value" : "http://example.com/ip/2001:db8::123",
"rel" : "self",
"href" : "http://example.com/ip/2001:db8::123"
},
{
"value" : "http://example.com/ip/2001:db8::123",
"rel" : "up",
"href" : "http://example.com/ip/2001:db8::/48"
}
]
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7. The Entity Object Class
The entity object class appears throughout this document and is an
appropriate response for the /entity/XXXX query defined in UNIFIED-
RDAP-QUERY [I-D.ietf-weirds-rdap-query]. This object class
represents the information of organizations, corporations,
governments, non-profits, clubs, individual persons, and informal
groups of people. All of these representations are so similar that
it is best to represent them in JSON [RFC4627] with one construct,
the entity object class, to aid in the re-use of code by
implementers.
Many of the members of the entity object class are repeated in other
object classes described later in this document.
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7.1. The RIR Entity Object Class
The following is an example of an RIR entity:
{
"handle" : "XXXX",
"entityNames": [ "Joe Bob, Inc.", "Bobby Joe Shopping" ],
"roles" : [ "registrant" ],
"postalAddress" :
[
"123 Maple Ave",
"Suite 90001",
"Vancouver",
"BC",
"12393"
],
"emails" : [ "joe@bob.com", "bob@joe.com" ],
"phones" :
{
"office" : [ "1-958-555-4321", "1-958-555-4322" ],
"fax" : [ "1-958-555-4323" ],
"mobile" : [ "1-958-555-4324" ]
},
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.com/entity/XXXX",
"rel" : "self",
"href" : "http://example.com/entity/XXXX"
}
],
"registrationDate" : "1990-12-31T23:59:60Z",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "joe@bob.com"
}
This object as the following members.
o handle -- a string representing an registry unique identifier of
the entity
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o entityNames -- an array of strings, each signifying the name of
the entity
o roles -- an array of strings, each signifying the relationship an
object would have with its closest containing object.
o postalAddress -- an array of string, each representing a line in a
postal address.
o emails -- an array of strings, each containing an email address
for the entity
o phones -- an object containing telephone information associated
with the entity, with the following members:
* office -- an array of strings, each being a telephone number
* fax -- an array of strings, each being a telephone number
* mobile -- an array of strings, each being a telephone number
o remarks -- an array of strings, each containing comments about the
entity
o links -- see Section 6
o registrationDate -- a string containing the date the entity was
registered
o lastChangedDate -- a string containing the date of last change
made to the entity
o lastChangedBy -- a string containing an identifier of the party
responsible for the last change made to the entity registration
7.2. The DNR Entity Object Class
The DNR entity object class is a superset of the RIR entity object
class (Section 7.1). It has the following additional members:
o registrationBy -- a string containing an identifier of the party
responsible for the registration of the entity
o sponsoredBy -- a string containing an identifier of the party
through which the registration was made, such as an IANA approved
registrar
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o resoldBy -- a string containing an identifier of the party
originating the registration of the entity.
o status -- an array of strings indicating the state of the entity
o port43 -- a string containing the fully-qualified host name of the
WHOIS [RFC3912] server where the object instance may be found.
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The following is an example of a DNR entity:
{
"handle" : "XXXX",
"entityNames": [ "Joe Bob, Inc.", "Bobby Joe Shopping" ],
"status" : [ "validated", "locked" ],
"postalAddress" :
[
"123 Maple Ave",
"Suite 90001",
"Vancouver",
"BC",
"12393"
],
"emails" : [ "joe@bob.com", "bob@joe.com" ],
"phones" :
{
"office" : [ "1-958-555-4321", "1-958-555-4322" ],
"fax" : [ "1-958-555-4323" ],
"mobile" : [ "1-958-555-4324" ]
},
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.com/entity/XXXX",
"rel" : "self",
"href" : "http://example.com/entity/XXXX"
}
],
"port43" : "whois.example.net",
"registrationDate" : "1990-12-31T23:59:60Z",
"registrationBy" : "ABC123",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "ABC123",
"sponsoredBy" : "SponsorXYZ",
"resoldBy" : "ResellerPDQ"
}
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8. The Nameserver Object Class
The nameserver object class is used by both RIRs and DNRs. Unlike
other object classes used by both registries where the RIR object
class is a subset of the DNR object class, a clear delineation is not
made with the nameserver object class because some DNRs have the same
or a similar registration model as the RIRs. RIRs and some DNRs
register or expose nameserver information as an attribute of a domain
name, while other DNRs model nameservers as "first class objects".
The nameserver object class accommodates both models and degrees of
variation in between.
The following is an example of a nameserver object.
{
"handle" : "XXXX",
"name" : "ns1.example.com",
"status" : [ "active" ],
"ipAddresses" : [ "192.0.2.1", "192.0.2.2" ],
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.net/nameserver/xxxx",
"rel" : "self",
"href" : "http://example.net/nameserver/xxxx"
}
],
"port43" : "whois.example.net",
"registrationDate" : "1990-12-31T23:59:60Z",
"registrationBy" : "ABC123",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "ABC123",
"sponsoredBy" : "SponsorXYZ",
"resoldBy" : "ResellerPDQ"
}
Figure 9
Figure 9 is an example of a nameserver object with all values given.
Registries using a first-class nameserver data model would embed this
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in domain objects as well as allowing references to it with the
/nameserver query type (all depending on the registry operators
policy). Other registries may pare back the information as needed.
Figure 10 is an example of a nameserver object as would be found in
RIRs and some DNRs, while Figure 11 is an example of a nameserver
object as would be found in other DNRs.
The following is an example of the simplest nameserver object.
{
"name" : "ns1.example.com"
}
Figure 10
The following is an example of a simple nameserver object that might
be commonly used by DNRs.
{
"name" : "ns1.example.com",
"ipAddresses" : [ "2001:db8::123", "2001:db8::124" ]
}
Figure 11
The nameserver object class has the following members:
o handle -- a string representing an registry unique identifier of
the nameserver
o name -- a string containing the DNS name of the nameserver
o ipAddresses -- an array of strings containing IPv4 and/or IPv6
addresses of the nameserver
The members "status", "remarks", "links", "port43", "sponsoredBy",
"resoldBy", "registrationBy", "registrationDate", "lastChangedDate",
and "lastChangedBy" take the same form of the members of the same
name of the entity object (Section 7).
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9. The Domain Object Class
The domain object class represents a DNS name and point of
delegation. For RIRs these delegation points are in the reverse DNS
tree, whereas for DNRs these delegation points are in the forward DNS
tree. The RIR domain object class is a subset of the DNR object
class.
In both cases, the high level structure of the domain object class
consists of information about the domain registration, nameserver
information related to the domain name, and entities related to the
domain name (e.g. registrant information, contacts, etc...).
The following is an elided example of the domain object showing the
high level structure.
{
"handle" : "XXX",
"name" : "blah.example.com",
...
"nameServers" :
[
...
],
...
"entities" :
[
...
]
}
9.1. The RIR Domain Object Class
The following is an example of a JSON object representing a reverse
DNS delegation point or the RIR domain object class.
{
"handle" : "XXXX",
"name" : "192.in-addr.arpa",
"nameServers" :
[
{ "name" : "ns1.rir.net" },
{ "name" : "ns2.rir.net" }
],
"delegationKeys" :
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[
{
"algorithm": 7,
"digest" : "E68C017BD813B9AE2F4DD28E61AD014F859ED44C",
"digestType" : 1,
"keyTag" : 53814
}
],
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value": "http://example.net/domain/XXXX",
"rel" : "self",
"href" : "http://example.net/domain/XXXXX"
}
],
"registrationDate" : "1990-12-31T23:59:60Z",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "joe@bob.com",
"entities" :
[
{
"handle" : "XXXX",
"entityNames": [ "Joe Bob, Inc.", "Bobby Joe Shopping" ],
"roles" : [ "registrant" ],
"postalAddress" :
[
"123 Maple Ave",
"Suite 90001",
"Vancouver",
"BC",
"12393"
],
"emails" : [ "joe@bob.com", "bob@joe.com" ],
"phones" :
{
"office" : [ "1-958-555-4321", "1-958-555-4322" ],
"fax" : [ "1-958-555-4323" ],
"mobile" : [ "1-958-555-4324" ]
},
"remarks" :
[
"she sells seas shells",
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"down by the seashore"
],
"links" :
[
{
"value": "http://example.net/entity/xxxx",
"rel" : "self",
"href" : "http://example.net/entity/xxxx"
}
],
"registrationDate" : "1990-12-31T23:59:60Z",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "joe@bob.com"
}
]
}
The following is a description of the members of this object:
o handle -- a string representing a registry unique identifier of
the domain object instance
o name -- a string denoting the DNS zone name, which is a domain
name
o nameservers -- an array of nameserver objects as defined by
Section 8
o delegationKeys -- an array of objects, each with the following
members:
* algorithm -- an integer as specified by the algorithm field of
a DNS DS record as specified by RFC 4034 [RFC4034] in
presentation format
* digest -- an string as specified by the digest field of a DNS
DS record as specified by RFC 4034 in presentation format
* digestType -- an integer as specified by the digest type field
of a DNS DS record as specified by RFC 4034 in presentation
format
* keyTag -- an integer as specified by the key tag field of a DNS
DS record as specified by RFC 4034 in presentation format
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o entities -- an array of entity objects as defined by Section 7.1.
The members "remarks", "links", "registrationDate",
"lastChangedDate", and "lastChangedBy" take the same form of the
members of the same name of the entity object (Section 7).
9.2. The DNR Domain Object Class
The DNR domain object class is a superset of the RIR domain object
class (Section 9.1) and has the following additional members.
o variants -- an array of objects, each containing the following
values:
* relation -- an array of strings, with each string denoting the
relationship between the variants and the containing domain
object.
* variantNames -- an array of strings, each being a variant
domain of the containing domain object.
o expirationDate -- a string containing the date and time this
domain name registration will expire
o registrationBy -- a string containing an identifier of the party
responsible for the registration of the domain name
o sponsoredBy -- a string containing an identifier of the party
through which the registration was made, such as an IANA approved
registrar
o resoldBy -- a string containing an identifier of the party
originating the registration of the domain name
o status -- an array of strings indicating the state of the domain
name
o transferDate -- a string containing the date and time this domain
name was transferred
o port43 -- a string containing the fully-qualified host name of the
WHOIS [RFC3912] server where the object instance may be found.
The following is an example of a JSON object representing a forward
DNS delegation point or the DNR domain object class.
{
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"handle" : "XXXX",
"name" : "blah.example.com",
"variants" :
[
{
"relation" : [ "registered", "conjoined" ],
"variantNames" : [ "blah2.example.com", "blah3.example.com" ]
},
{
"relation" : [ "unregistered", "restrictedRegistration" ],
"variantNames" : [ "blah3.example.com", "blah4.example.com" ]
}
],
"status" : [ "locked", "transferProhibited" ],
"nameServers" :
[
{
"handle" : "XXXX",
"name" : "ns1.example.com",
"status" : [ "active" ],
"ipAddresses" :
[
"2001:db8::123", "2001:db8::124",
"192.0.2.1", "192.0.2.2"
],
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.net/nameserver/XXXX".
"rel" : "self",
"href" : "http://example.net/nameserver/XXXX"
}
],
"registrationDate" : "1990-12-31T23:59:60Z",
"registrationBy" : "ABC123",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "ABC123",
"sponsoredBy" : "SponsorXYZ",
"resoldBy" : "ResellerPDQ"
},
{
"handle" : "XXXX",
"name" : "ns2.example.com",
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"status" : [ "active" ],
"ipAddresses" :
[
"2001:db8::125", "2001:db8::126",
"192.0.2.3", "192.0.2.4"
],
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.net/nameserver/XXXX",
"rel" : "self",
"href" : "http://example.net/nameserver/XXXX"
}
],
"registrationDate" : "1990-12-31T23:59:60Z",
"registrationBy" : "ABC123",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "ABC123",
"sponsoredBy" : "SponsorXYZ",
"resoldBy" : "ResellerPDQ"
}
],
"delegationKeys" :
[
{
"algorithm": 7,
"digest" : "E68C017BD813B9AE2F4DD28E61AD014F859ED44C",
"digestType" : 1,
"keyTag" : 53814
}
],
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value": "http://example.net/domain/XXXX",
"rel" : "self",
"href" : "http://example.net/domain/XXXX"
}
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],
"port43" : "whois.example.net",
"registrationDate" : "1990-12-31T23:59:60Z",
"registrationBy" : "ABC123",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "ABC123",
"sponsoredBy" : "SponsorXYZ",
"resoldBy" : "ResellerPDQ",
"expirationDate" : "2016-12-31T23:59:60Z",
"transferDate" : "1990-12-31T23:59:60Z",
"entities" :
[
{
"handle" : "XXXX",
"entityNames": [ "Joe Bob, Inc.", "Bobby Joe Shopping" ],
"status" : [ "validated", "locked" ],
"postalAddress" :
[
"123 Maple Ave",
"Suite 90001",
"Vancouver",
"BC",
"12393"
],
"emails" : [ "joe@bob.com", "bob@joe.com" ],
"phones" :
{
"office" : [ "1-958-555-4321", "1-958-555-4322" ],
"fax" : [ "1-958-555-4323" ],
"mobile" : [ "1-958-555-4324" ]
},
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.net/entity/xxxx",
"rel" : "self",
"href" : "http://example.net/entity/xxxx"
}
],
"registrationDate" : "1990-12-31T23:59:60Z",
"registrationBy" : "ABC123",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "ABC123",
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"sponsoredBy" : "SponsorXYZ",
"resoldBy" : "ResellerPDQ"
}
]
}
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10. The IP Network Object Class
The IP Network object class models IP network registrations found in
RIRs and is the expected response for the /ip query as defined by
[I-D.ietf-weirds-rdap-query]. There is no equivalent object class
for DNRs. The high level structure of the IP network object class
consists of information about the network registration and entities
related to the IP network (e.g. registrant information, contacts,
etc...).
The following is an elided example of the IP network object type
showing the high level structure.
{
"handle" : "XXX",
...
"entities" :
[
...
]
}
The following is an example of the JSON object for the network
registration information
{
"handle" : "XXXX-RIR",
"startAddress" : "2001:db8::0",
"endAddress" : "2001:db8::0:FFFF:FFFF:FFFF:FFFF:FFFF",
"ipVersion" : 6,
"name": "NET-RTR-1",
"description" : [ "A network used for routing" ],
"type" : "DIRECT ALLOCATION",
"country" : "AU",
"parentHandle" : "YYYY-RIR",
"status" : [ "allocated" ],
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.ent/ip/2001:db8::/48",
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"rel" : "self",
"href" : "http://example.net/ip/2001:db8::/48"
},
{
"value" : "http://example.net/ip/2001:db8::/48",
"rel" : "up",
"href" : "http://example.net/ip/2001:C00::/23"
}
],
"registrationDate" : "20110509",
"lastChangedDate" : "20110509",
"lastChangedBy" : "joe@bob.com",
"entities" :
[
{
"handle" : "XXXX",
"entityNames": [ "Joe Bob, Inc.", "Bobby Joe Shopping" ],
"roles" : [ "registrant" ],
"postalAddress" :
[
"123 Maple Ave",
"Suite 90001",
"Vancouver",
"BC",
"12393"
],
"emails" : [ "joe@bob.com", "bob@joe.com" ],
"phones" :
{
"office" : [ "1-958-555-4321", "1-958-555-4322" ],
"fax" : [ "1-958-555-4323" ],
"mobile" : [ "1-958-555-4324" ]
},
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.net/entity/xxxx",
"rel" : "self",
"href" : "http://example.net/entity/xxxx"
}
],
"registrationDate" : "1990-12-31T23:59:60Z",
"lastChangedDate" : "1990-12-31T23:59:60Z",
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"lastChangedBy" : "joe@bob.com"
}
]
}
The following is a description of the members of this object:
o handle -- a string representing an RIR unique identifier of the
network registration
o startAddress -- the starting IP address of the network, either
IPv4 or IPv6
o endAddress -- the ending IP address of the network, either IPv4 or
IPv6
o ipVersion -- an integer signifying the IP protocol version of the
network: 4 signifying an IPv4 network, 6 signifying an IPv6
network
o name -- an identifier assigned to the network registration by the
registration holder
o description -- an array of strings containing descriptive text
about the network registration
o type -- a string containing an RIR specific classification of the
network
o country -- a string containing the name of the 2 character country
code of the network
o parentHandle -- a string containing an RIR unique identifier of
the parent network of this network registration
o status -- an array of strings indicating the state of the IP
network
o entities -- an array of entity objects as defined by Section 7.1.
The members "remarks", "links", "registrationDate",
"lastChangedDate", and "lastChangedBy" take the same form of the
members of the same name of the entity object (Section 7.1).
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11. Autonomous System Number Entity Object Class
The Autonomous System Number (autnum) object class models Autonomous
System Number registrations found in RIRs and represents the expected
response to an /autnum query as defined by
[I-D.ietf-weirds-rdap-query]. There is no equivalent object class
for DNRs. The high level structure of the autnum object class
consists of information about the network registration and entities
related to the autnum registration (e.g. registrant information,
contacts, etc...), and is similar to the IP Network entity object
class.
The following is an example of a JSON object representing an autnum.
{
"handle" : "XXXX-RIR",
"startAutnum" : "10",
"endAutnum" : "15",
"name": "AS-RTR-1",
"description" : [ "AS for Exchange" ],
"type" : "DIRECT ALLOCATION",
"country": "AU",
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.net/autnum/xxxx",
"rel" : "self",
"href" : "http://example.net/autnum/xxxx"
}
],
"registrationDate" : "20110509",
"lastChangedDate" : "20110509",
"lastChangedBy" : "joe@bob.com",
"entities" :
[
{
"handle" : "XXXX",
"entityNames": [ "Joe Bob, Inc.", "Bobby Joe Shopping" ],
"roles" : [ "registrant" ],
"postalAddress" :
[
"123 Maple Ave",
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"Suite 90001",
"Vancouver",
"BC",
"12393"
],
"emails" : [ "joe@bob.com", "bob@joe.com" ],
"phones" :
{
"office" : [ "1-958-555-4321", "1-958-555-4322" ],
"fax" : [ "1-958-555-4323" ],
"mobile" : [ "1-958-555-4324" ]
},
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"links" :
[
{
"value" : "http://example.net/entity/XXXX",
"rel" : "self",
"href" : "http://example.net/entity/XXXX"
}
],
"registrationDate" : "1990-12-31T23:59:60Z",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "joe@bob.com"
}
]
}
The following is a description of the members of this object:
o handle -- a string representing an RIR unique identifier of the
autnum registration
o startAutnum -- the starting number [RFC5396] in the block of
autonomous system numbers
o endAutnum -- the ending number [RFC5396] in the block of
autonomous system numbers
o name -- an identifier assigned to the autnum registration by the
registration holder
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o description -- an array of strings containing descriptive text
about the autnum registration
o type -- a string containing an RIR specific classification of the
autnum
o country -- a string containing the name of the 2 character country
code of the autnum
The members "remarks", "links", "registrationDate",
"lastChangedDate", and "lastChangedBy" take the same form of the
members of the same name of the entity object (Section 7.1).
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12. Error Response Body
Some non-answer responses may return entity bodies with information
that could be more descriptive.
The basic structure of that response is an object class containing an
error code number (corresponding to the HTTP response code) followed
by a string named "title" followed by an array of strings named
"description".
This is an example of the JSON version of the common response body.
{
"errorCode": 418,
"title": "Your beverage choice is not available",
"description":
[
"I know coffee has more ummppphhh.",
"But I cannot provide."
]
}
Figure 12
A client MAY simply use the HTTP response code as the server is not
required to include error data in the response body. However, if a
client wishes to parse the error data, it SHOULD first check that the
Content-Type header contains the appropriate media type.
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13. IANA Considerations
This specification registers the "application/rdap" media type.
Type name: application
Subtype name: rdap
Required parameters: n/a
Encoding considerations: n/a
Security considerations: n/a
Interoperability considerations: n/a
Published specification: [[ this document ]]
Applications that use this media type: RDAP
Additional information: n/a
Person & email address to contact for further information: Andy
Newton &andy@hxr.us&
Intended usage: COMMON
Restrictions on usage: none
Author: Andy Newton
Change controller: IETF
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14. Internationalization Considerations
14.1. Character Encoding
The default text encoding for JSON and XML responses in RDAP is
UTF-8, and all servers and clients MUST support UTF-8. Servers and
clients MAY optionally support other character encodings.
14.2. URIs and IRIs
[I-D.ietf-weirds-using-http] defines the use of URIs and IRIs in
RDAP.
14.3. Language Tags
Section 5.3 defines the use of language tags in the JSON responses
defined in this document.
14.4. Internationalized Domain Names
Appendix C illustrates the model for query and response regarding
internationalized domain names (IDNs).
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15. Contributing Authors and Acknowledgements
This document is derived from original work on RIR response in JSON
by Byron J. Ellacott of APNIC, Arturo L. Servin of LACNIC, Kaveh
Ranjbar of the RIPE NCC, and Andrew L. Newton of ARIN. Additionally,
this document incorporates word on DNR responses in JSON by Ning
Kong, Linlin Zhou, Jiagui Xie, and Sean Shen of CNNIC.
The components of the DNR object classes are derived from a
categorization of WHOIS response formats created by Ning Kong, Linlin
Zhou, and Guangqing Deng of CNNIC, Steve Sheng and Francisco Arias of
ICANN, Ray Bellis of Nominet, and Frederico Neves of NIC.BR.
Ed Lewis of Neustar contributed significant review comments and
provided clarifying text.
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16. References
16.1. Normative References
[RFC0791] Postel, J., "Internet Protocol", STD 5, RFC 791,
September 1981.
[RFC1166] Kirkpatrick, S., Stahl, M., and M. Recker, "Internet
numbers", RFC 1166, July 1990.
[RFC2616] Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,
Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext
Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.
[RFC3339] Klyne, G., Ed. and C. Newman, "Date and Time on the
Internet: Timestamps", RFC 3339, July 2002.
[RFC3986] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform
Resource Identifier (URI): Generic Syntax", STD 66,
RFC 3986, January 2005.
[RFC4034] Arends, R., Austein, R., Larson, M., Massey, D., and S.
Rose, "Resource Records for the DNS Security Extensions",
RFC 4034, March 2005.
[RFC4343] Eastlake, D., "Domain Name System (DNS) Case Insensitivity
Clarification", RFC 4343, January 2006.
[RFC4627] Crockford, D., "The application/json Media Type for
JavaScript Object Notation (JSON)", RFC 4627, July 2006.
[RFC5322] Resnick, P., Ed., "Internet Message Format", RFC 5322,
October 2008.
[RFC5396] Huston, G. and G. Michaelson, "Textual Representation of
Autonomous System (AS) Numbers", RFC 5396, December 2008.
[RFC5646] Phillips, A. and M. Davis, "Tags for Identifying
Languages", BCP 47, RFC 5646, September 2009.
[RFC5952] Kawamura, S. and M. Kawashima, "A Recommendation for IPv6
Address Text Representation", RFC 5952, August 2010.
[RFC5988] Nottingham, M., "Web Linking", RFC 5988, October 2010.
[ISO.3166.1988]
International Organization for Standardization, "Codes for
the representation of names of countries, 3rd edition",
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ISO Standard 3166, August 1988.
[I-D.ietf-weirds-rdap-query]
Newton, A. and S. Hollenbeck, "RDAP Query Format",
draft-ietf-weirds-rdap-query-00 (work in progress),
September 2011.
[I-D.ietf-weirds-using-http]
Newton, A., Ellacott, B., and N. Kong, "Using HTTP for
RESTful Whois Services by Internet Registries",
draft-ietf-weirds-using-http-01 (work in progress),
May 2012.
[E164] ITU-T, "The International Public Telecommunication Number
Plan", Recommendation E.164, May 1997.
16.2. Informative References
[RFC3912] Daigle, L., "WHOIS Protocol Specification", RFC 3912,
September 2004.
[RFC3730] Hollenbeck, S., "Extensible Provisioning Protocol (EPP)",
RFC 3730, March 2004.
[JSON_acendancy]
MacVittie, "The Stealthy Ascendancy of JSON", 04 2011.
[JSON_performance_study]
Montana State University - Bozeman, Montana State
University - Bozeman, Montana State University - Bozeman,
and Montana State University - Bozeman, "Comparison of
JSON and XML Data Interchange Formats: A Case Study",
2009.
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Appendix A. Suggested Values
Due to the wide variation between the hundreds of registry operators
and the on-going policy refinement by registry communities, values of
some data cannot be formally standardized. This section lists
suggested values for such data but is not nor will ever be a complete
list of values and their meanings.
A.1. Status
Many of the object classes have a member named 'status'. This member
is an array of strings, with each string denoting a status associated
with the containing object. The following is a list of suggested
values to use in the 'status' array:
o 'validated' -- Signifies that the data of the object instance has
been found to be accurate. This type of status is usually found
on entity object instances to note the validity of identifying
contact information.
o 'update prohibited' -- Updates to the object instance are
forbidden.
o 'transfer prohibited' -- Transfers of the registration from one
registrar to another are forbidden. This type of status normally
applies to DNR domain names.
o 'delete prohibited' -- Deletion of the registration of the object
instance is forbidden. This type of status normally applies to
DNR domain names.
A.2. Roles
Entity object classes have a member named 'roles'. This member is an
array of strings, with each string indicating the role or
relationship the entity object instance has with a containing object,
such as a domain name or IP network. An entity object instance can
have more than one type of relationship with a containing object.
The following is a list of suggested values to use in the 'roles'
array:
o 'registrant' -- The entity object instance is the registrant of
the registration.
o 'tech' -- The entity object instance is a technical contact for
the registration.
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o 'admin' -- The entity object instance is an administrative contact
for the registration.
o 'abuse' -- The entity object instance handles network abuse issues
on behalf of the registrant of the registration.
o 'billing' -- The entity object instance handles payment and
billing issues on behalf of the registrant of the registration.
o 'registrar' -- The entity object instance represents the authority
responsible for the registration in the registry.
A.3. Variant Relations
Section 9.2 describes a structure for noting variants of domain names
and the relationship those variants have with a registered domain
name. The following is a list of suggested values to use as the
variant relation values:
o 'registered' -- the variant names are registered in the registry.
o 'unregistered' -- the variant names are not found in the registry.
o 'restrictedRegistration' -- registration of the variant names is
restricted to certain parties or within certain rules.
o 'openRegistration' -- registration of the variant names is
available to generally qualified registrants.
o 'conjoined' -- registration of the variant names is conjoined with
the registration of the containing domain registration.
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Appendix B. Suggested Data Modeling with the Entity Object Class
B.1. Registrants and Contacts
This document does not provide specific object classes for
registrants and contacts. Instead the entity object class may be
used to represent a registrant or contact. When the entity object is
embedded inside a containing object such as a domain name or IP
network, the 'roles' string array can be used to signify the
relationship. It is recommended that the values from Appendix A.2 be
used.
The following is an example of an elided containing object with an
embedded entity that is both a registrant and admin contact:
{
...
"entities" :
[
{
"handle" : "XXXX",
"entityNames": [ "Joe Bob, Inc.", "Bobby Joe Shopping" ],
"roles" : [ "registrant", "admin" ],
"postalAddress" :
[
"123 Maple Ave",
"Suite 90001",
"Vancouver",
"BC",
"12393"
],
"emails" : [ "joe@bob.com", "bob@joe.com" ],
"phones" :
{
"office" : [ "1-958-555-4321", "1-958-555-4322" ],
"fax" : [ "1-958-555-4323" ],
"mobile" : [ "1-958-555-4324" ]
},
"remarks" :
[
"she sells seas shells",
"down by the seashore"
],
"registrationDate" : "1990-12-31T23:59:60Z",
"lastChangedDate" : "1990-12-31T23:59:60Z",
"lastChangedBy" : "joe@bob.com"
}
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]
}
B.2. Registrars
This document does not provide a specific object class for
registrars, but like registrants and contacts (see Appendix B.1) the
'roles' string array maybe used.
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The following is an example of an elided containing object with an
embedded entity that is a registrar:
{
...
"entities" :
[
{
"handle" : "XXXX",
"names": [ "RegistrarsRUS" ],
"roles" : [ "registrar" ],
"postalAddress" :
[
"1212 Tulip Ave",
"Suite 1",
"Marina Del Rey",
"CA",
"12393-2193"
],
"emails" : [ "joe@bob.com", "bob@joe.com" ],
"phones" :
{
"office" : [ "1-958-555-4321", "1-958-555-4322" ],
"fax" : [ "1-958-555-4323" ],
"mobile" : [ "1-958-555-4324" ]
},
"remarks" :
[
"we registrar for less!"
],
"links" :
[
{
"value" : "http://example.net/entity/XXXX",
"rel" : "alternate",
"type" : "text/html",
"href" : "http://www.example.com"
}
]
}
]
}
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Appendix C. IDN Query and Response Model
Internationalized Domain Names (IDNs) differ from other types of
domain names because multiple domain names as would be represented by
a name in Master File format (see [RFC4343]) may be registered by a
single IDN. IDNs are based on Unicode, and Unicode can have multiple
means for encoding the same word depending on the character set and
language being used. And the rules for determining which IDN
encoding maps to a "wire-format" domain name vary from DNR to DNR.
When an IDN maps to multiple domain names, the various mappings are
called variants. The DNR Domain object class (Section 9.2)
represents the variants using a string array.
The following is an example of an elided DNR domain object with
variants.
{
"handle" : "XXXX",
"name" : "blah.example.com",
"variants" : [ "blah2.example.com", "blah3.example.com" ],
...
}
Because IDNs can have multiple targets in a mapping and due to the
variance in DNR mapping rules, it is up to the client to reduce an
IDN to a domain name in Master File format so as to narrow the lookup
of the domain name to the proper subset. A query of a DNR using the
IDN itself might map across multiple registrations depending on the
mapping rules of the DNR.
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Appendix D. Postal Addresses vs Location
The postal address data listed in the entity object class (Section 7)
does not necessarily represent location. The intent of this
information is to provide a means to send postal mail to an entity.
While in some cases it may also be the location of the entity, there
is no guarantee that the two are the same.
Additionally, the postal address data represented in this document
does not follow any specific standard for postal addresses because
many registries do not keep postal address data in an
internationalized standard form. Publication of such data in a
format that suggests an internationalized standard form when such
data is not known to be well-formed for that purpose would be
misleading.
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Appendix E. Motivations for Using JSON
This section addresses a common question regarding the use of JSON
over other data formats, most notably XML.
It is often pointed out that many DNRs and one RIR support the EPP
[RFC3730] standard, which is an XML serialized protocol. The logic
is that since EPP is a common protocol in the industry it follows
that XML would be a more natural choice. While EPP does enfluence
this specification quite a bit, EPP serves a different purpose which
is the provisioning of Internet resources between registries and
accredited registrars and serves a much narrower audience than that
envisioned for RDAP.
By contrast, RDAP has a broader audience and is designed for public
consumption of data. Experience from RIRs with first generation
RESTful web services for Whois indicate a large percentage of clients
operate within browsers and other platforms where full-blown XML
stacks are not readily available and where JSON is a better fit.
Additionally, while EPP is used in much of the DNR community it is
not a unversial constant in that industry. And finally, EPP's use of
XML predates the specification of JSON. If EPP had been defined
today, it may very well have used JSON instead of XML.
Beyond the specific DNR and RIR communities, the trend in the broader
Internet industry is also switching to JSON over XML, especially in
the area of RESTful web services (see [JSON_acendancy]). Studies
have also found that JSON is generally less bulky and consequently
faster to parse (see [JSON_performance_study]).
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Appendix F. Changelog
Initial -00 Adopted as working group document 2012-September-18.
-01
Minor spelling corrections. Changed "Registry Data" to
"Registration Data" for the sake of consistency.
Transitioned to RFC 5988 links and relationshipt types from our
own custom "uris" structure.
Some examples had 'status' as a string. Those have been
corrected as 'status' is always an array of strings.
Domain variants can now have a multi-valued relationship with
domain registrations.
"names" in the entity object class was changed to
"entityNames".
Some IP address examples change to IPv6.
Change phone number examples and added reference to E.164.
Added section on motivations for using JSON.
Added error response body section.
Added JSON naming section.
Added common data structures section.
Added the IANA Considerations section and the media type
registration.
Added 'lang' name/value.
Added internationalization considerations section.
-02
Removed level from media type registration.
Textual changes as given by Ed Lewis.
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Fixed objectclass linking example noted by Francisco Obispo
Fixed a lot of other examples called out by Alex Sergeyev
Added a note that JSON names are case sensitive
Added 'status' to IP networks as suggested by Alex Sergeyev
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Authors' Addresses
Andrew Lee Newton
American Registry for Internet Numbers
3635 Concorde Parkway
Chantilly, VA 20151
US
Email: andy@arin.net
URI: http://www.arin.net
Scott Hollenbeck
Verisign Labs
12061 Bluemont Way
Reston, VA 20190
US
Email: shollenbeck@verisign.com
URI: http://www.verisignlabs.com/
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