type="iris:entityType"
minOccurs="0"
maxOccurs="unbounded" />
<element
ref="iris:seeAlso"
minOccurs="0"
maxOccurs="unbounded" />
</sequence>
</extension>
</complexContent>
</complexType>
<element
name="contact"
type="dreg:contactType"
substitutionGroup="iris:result" />
<!-- -->
<!-- Registration Authority -->
<!-- -->
<complexType
name="registrationAuthorityType">
<complexContent>
<extension
base="iris:resultType">
<sequence>
<element
name="serviceInstance"
type="iris:entityType"
minOccurs="0"
maxOccurs="1" />
<element
name="organizationName"
type="string"
minOccurs="0"
maxOccurs="1" />
<choice
minOccurs="0"
maxOccurs="3">
<element
name="registry">
<complexType/>
</element>
<element
name="registrar">
<complexType/>
</element>
<element
name="other">
<complexType/>
</element>
</choice>
<element
name="domain"
type="token"
minOccurs="0"
maxOccurs="unbounded" />
</sequence>
</extension>
</complexContent>
</complexType>
<element
name="registrationAuthority"
type="dreg:registrationAuthorityType"
substitutionGroup="iris:result" />
<!-- -->
<!-- Privacy Label Types -->
<!-- -->
<attributeGroup
name="privacyLabelAttributeGroup">
<attribute
name="private"
type="boolean" />
<attribute
name="denied"
type="boolean" />
<attribute
name="doNotRedistribute"
type="boolean" />
<attribute
name="specialAccess"
type="boolean" />
</attributeGroup>
<complexType
name="dateTimePrivacyType">
<simpleContent>
<extension
base="dateTime">
<attributeGroup
ref="dreg:privacyLabelAttributeGroup" />
</extension>
</simpleContent>
</complexType>
<complexType
name="stringPrivacyType">
<simpleContent>
<extension
base="string">
<attributeGroup
ref="dreg:privacyLabelAttributeGroup" />
</extension>
</simpleContent>
</complexType>
<complexType
name="normalizedStringPrivacyType">
<simpleContent>
<extension
base="normalizedString">
<attributeGroup
ref="dreg:privacyLabelAttributeGroup" />
</extension>
</simpleContent>
</complexType>
<complexType
name="tokenPrivacyType">
<simpleContent>
<extension
base="token">
<attributeGroup
ref="dreg:privacyLabelAttributeGroup" />
</extension>
</simpleContent>
</complexType>
<complexType
name="domainStatusType">
<sequence>
<element
name="appliedDate"
type="dateTime"
minOccurs="0"
maxOccurs="1" />
<element
name="description"
minOccurs="0"
maxOccurs="unbounded">
<complexType>
<simpleContent>
<extension
base="string">
<attribute
name="language"
type="language"
use="required" />
</extension>
</simpleContent>
</complexType>
</element>
</sequence>
<attributeGroup
ref="dreg:privacyLabelAttributeGroup" />
<attribute
name="scope"
type="string" />
</complexType>
<complexType
name="contactTypeType">
<sequence>
<element
name="description"
minOccurs="0"
maxOccurs="unbounded">
<complexType>
<simpleContent>
<extension
base="string">
<attribute
name="language"
type="language"
use="required" />
</extension>
</simpleContent>
</complexType>
</element>
</sequence>
<attributeGroup
ref="dreg:privacyLabelAttributeGroup" />
</complexType>
<!-- ========================================= -->
<!-- -->
<!-- Error Codes -->
<!-- -->
<!-- ========================================= -->
<!-- -->
<!-- Search Too Wide -->
<!-- -->
<element
name="searchTooWide"
type="iris:codeType"
substitutionGroup="iris:genericCode" />
<!-- -->
<!-- Language Not Supported -->
<!-- -->
<complexType
name="languageNotSupportedType">
<complexContent>
<extension
base="iris:codeType">
<sequence>
<element
name="unsupportedLanguage"
type="language"
minOccurs="1"
maxOccurs="unbounded" />
</sequence>
</extension>
</complexContent>
</complexType>
<element
name="languageNotSupported"
type="dreg:languageNotSupportedType"
substitutionGroup="iris:genericCode" />
</schema>
Figure 5: dreg.xsd
5. BEEP Transport Compliance
IRIS allows several extensions of the core capabilities. This
section outlines extensions allowable by IRIS-BEEP [6].
5.1. Message Pattern
This registry type uses the default message pattern described in
IRIS-BEEP [6].
5.2. Server Authentication
This registry type only uses the basic TLS server authentication
method, as described in IRIS-BEEP [6].
6. URI Resolution
6.1. Application Service Label
The application service label associated with this registry type MUST
be "DREG1". This is the abbreviated form of the URN for this
registry type: urn:ietf:params:xml:ns:dreg1.
6.2. Bottom-Up Resolution
The bottom-up alternative resolution method MUST be identified as
’bottom’ in IRIS URI’s.
The process for this resolution method differs from the direct-
resolution method if the authority is only a domain name (i.e.,
without the port number). The process for this condition is as
follows:
1. The IRIS [5] direct-resolution process is tried on the domain name
(e.g., "example.com").
2. If the direct-resolution process yields no server for which a
connection can be made, then the leftmost label of the domain name
is removed, and the first step is repeated again (e.g., "com").
3. If all the labels of the domain name are removed and no server
connections have been made, then the DNS is queried for the
address records corresponding to the original domain name, and the
port used is the well-known port for the default protocol of IRIS.
6.3. Top-Down Resolution
The top-down alternative resolution method MUST be identified as
’top’ in IRIS URIs.
The process for this resolution method differs from the direct-
resolution method if the authority is only a domain name (i.e.,
without the port number). The process for this condition is as
follows:
1. The domain name is reduced to its rightmost label. This is always
’.’.
2. The IRIS [5] direct-resolution process is tried on the domain
name.
3. If the direct-resolution process yields no server for which a
connection can be made, then the original label to the left of the
rightmost label of the domain name is prepended, and the second
step is repeated again (e.g., if ".", then "com"; if "com", then
"example.com").
4. If all the labels of the original domain are present and no server
connections have been made, then the DNS is queried for the
address records corresponding to the original domain name, and the
port used is the well-known port for the default protocol of IRIS.
7. Internationalization Considerations
Implementers should be aware of considerations for
internationalization in IRIS [5].
This document specifies the lookup of domain names, both the
traditional ASCII form and the IDN form. In addition, the social
data associated with contacts may also be non-ASCII and could contain
virtually any Unicode character. The <language> element is provided
in queries that have the potential to traverse such data. Clients
should use this element to indicate the desired target languages to
the server, and servers should use this element to better enable
normalization and search processes (see [18]).
For clients needing to localize the data tags in this protocol, note
that localization is only needed on the names of XML elements and
attributes with the exception of elements containing date and time
information. The schema for this registry has been designed so that
clients need not interpret the content of elements or attributes for
localization, other than that of elements containing date and time
information.
Clients should also make use of the <language> elements provided in
many of the results. Results containing data that may be in Unicode
are accompanied by these elements in order to aid better presentation
of the data to the user.
The "dateTimePrivacyType" element type contains the XML Schema [3]
data type "dateTime". The contents of this element MUST be specified
by using the ’Z’ indicator for Coordinated Universal Time (UTC).
8. IANA Considerations
8.1. XML Namespace URN Registration
This document makes use of a proposed XML namespace and schema
registry specified in XML_URN [16]. Accordingly, the following
registration information is provided for the IANA:
o URN/URI:
* urn:ietf:params:xml:ns:dreg1
o Contact:
* Andrew Newton <andy@hxr.us>
* Marcos Sanz <sanz@denic.de>
o XML:
* The XML Schema specified in Section 4
8.2. S-NAPTR Registration
The following S-NAPTR application service label has been registered
with IANA according to the IANA considerations defined in IRIS [5]:
DREG1
8.3. BEEP Registration
The following BEEP Profile URI has been registered with IANA, in
addition to the registration provided in IRIS-BEEP [6].
http://iana.org/beep/iris1/dreg1
9. Security Considerations
This document lays out no new considerations for security precautions
beyond that specified in IRIS [5].
10. References
10.1. Normative References
[1] World Wide Web Consortium, "Extensible Markup Language (XML)
1.0", W3C XML, February 1998, <http://www.w3.org/TR/1998/REC-
xml-19980210>.
[2] World Wide Web Consortium, "Namespaces in XML", W3C XML
Namespaces, January 1999, <http://www.w3.org/TR/1999/REC-xml-
names-19990114>.
[3] World Wide Web Consortium, "XML Schema Part 2: Datatypes", W3C
XML Schema, October 2000, <http://www.w3.org/TR/2001/REC-
xmlschema-2-20010502/>.
[4] World Wide Web Consortium, "XML Schema Part 1: Structures", W3C
XML Schema, October 2000, <http://www.w3.org/TR/2001/REC-
xmlschema-1-20010502/>.
[5] Newton, A. and M. Sanz, "IRIS: The Internet Registry Information
Service (IRIS) Core Protocol", RFC 3981, December 2005.
[6] Newton, A. and M. Sanz, "Using the Internet Registry Information
Service (IRIS) over the Blocks Extensible Exchange Protocol
(BEEP)", RFC 3983, December 2005.
[7] Hinden, R. and S. Deering, "Internet Protocol Version 6 (IPv6)
Addressing Architecture", RFC 3513, April 2003.
[8] Postel, J., "Internet Protocol", STD 5, RFC 791, September 1981.
[9] Mockapetris, P., "Domain names - implementation and
specification", STD 13, RFC 1035, November 1987.
[10] Bradner, S., "Key words for use in RFCs to Indicate Requirement
Levels", BCP 14, RFC 2119, March 1997.
[11] International Organization for Standardization, "Codes for the
representation of names of countries, 3rd edition", ISO Standard
3166, August 1988.
[12] Braden, R., "Requirements for Internet Hosts - Application and
Support", STD 3, RFC 1123, October 1989.
[13] International Telecommunications Union, "The International
Public Telecommunication Numbering Plan", ITU-T Recommendation
E.164, 1991.
[14] Faltstrom, P., Hoffman, P., and A. Costello, "Internationalizing
Domain Names in Applications (IDNA)", RFC 3490, March 2003.
[15] Hoffman, P. and M. Blanchet, "Nameprep: A Stringprep Profile for
Internationalized Domain Names (IDN)", RFC 3491, March 2003.
[16] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, January
2004.
10.2. Informative References
[17] Newton, A., "Cross Registry Internet Service Protocol (CRISP)
Requirements", RFC 3707, February 2004.
URIs
[18] <http://www.unicode.org/reports/tr15/>
Appendix A. Examples of Requests and Responses
The examples in this section use the string "C:" to denote data sent
by a client to a server and the string "S:" to denote data sent by a
server to a client.
A.1. Example 1
The following is an example of an entity lookup in a dreg1 registry
for the domain-name of ’example.com’. The response shows the ability
to specify data as being withheld because it is private.
C: <?xml version="1.0"?>
C: <request xmlns="urn:ietf:params:xml:ns:iris1"
C: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
C:
C: <searchSet>
C:
C: <lookupEntity
C: registryType="urn:ietf:params:xml:ns:dreg1"
C: entityClass="domain-name"
C: entityName="example.com" />
C:
C: </searchSet>
C:
C: </request>
S: <?xml version="1.0"?>
S: <iris:response xmlns:iris="urn:ietf:params:xml:ns:iris1"
S: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
S:
S: <iris:resultSet>
S: <iris:answer>
S:
S: <domain xmlns="urn:ietf:params:xml:ns:dreg1"
S: authority="iana.org" registryType="dreg1"
S: entityClass="domain-handle" entityName="example-com-1">
S:
S: <domainName>example.com</domainName>
S: <domainHandle>tcs-com-1</domainHandle>
S:
S: <nameServer iris:referentType="host" authority="iana.org"
S: registryType="dreg1" entityClass="host-handle"
S: entityName="research7" />
S:
S: <nameServer iris:referentType="host" authority="iana.org"
S: registryType="dreg1" entityClass="host-handle"
S: entityName="nsol184" />
S:
S: <technicalContact iris:referentType="contact"
S: authority="iana.org" registryType="dreg1"
S: entityClass="contact-handle" entityName="dbarton" />
S:
S: <status>
S: <assignedAndActive denied="true" />
S: </status>
S:
S: <registry iris:referentType="registrationAuthority"
S: authority="com" registryType="dreg1"
S: entityClass="contact-handle" entityName="VGRS" />
S:
S: <initialDelegationDateTime xsi:nil="true"/>
S:
S: <iris:seeAlso iris:referentType="ANY" authority="iana.org"
S: registryType="dreg1" entityClass="local"
S: entityName="notice" />
S:
S: </domain>
S:
S: </iris:answer>
S: </iris:resultSet>
S: </iris:response>
Figure 6: Example 1
A.2. Example 2
The following is an example of an entity lookup in a dreg1 registry
for the contact-handle of ’mak21’. The response shows the ability to
specify data as being withheld because it is private.
C: <?xml version="1.0"?>
C: <request xmlns="urn:ietf:params:xml:ns:iris1"
C: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
C:
C: <searchSet>
C:
C: <lookupEntity
C: registryType="urn:ietf:params:xml:ns:dreg1"
C: entityClass="contact-handle"
C: entityName="mak21" />
C:
C: </searchSet>
C:
C: </request>
S: <?xml version="1.0"?>
S: <response xmlns="urn:ietf:params:xml:ns:iris1"
S: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
S:
S: <resultSet>
S: <answer>
S:
S: <contact xmlns="urn:ietf:params:xml:ns:dreg1"
S: authority="com" registryType="dreg1"
S: entityClass="contact-handle" entityName="mak21" >
S:
S: <contactHandle>mak21</contactHandle>
S:
S: <commonName>
S: Mark Kosters
S: </commonName>
S:
S: <organization>
S: VeriSign, Inc.
S: </organization>
S:
S: <eMail>markk@verisignlabs.com</eMail>
S:
S: <phone private="true" xsi:nil="true" />
S:
S: </contact>
S:
S: </answer>
S: </resultSet>
S:
S: </response>
Figure 7: Example 2
A.3. Example 3
The following is an example of a domain search based on a
registrant’s name beginning with the string ’The Cobbler Shoppe’.
This example also shows the use of bags.
C: <?xml version="1.0"?>
C: <request xmlns="urn:ietf:params:xml:ns:iris1"
C: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
C:
C: <searchSet>
C:
C: <findDomainsByContact
C: xmlns="urn:ietf:params:xml:ns:dreg1" >
C: <baseDomain>com</baseDomain>
C: <commonName>
C: <beginsWith>
C: The Cobbler Shoppe
C: </beginsWith>
C: </commonName>
C: <role>registrant</role>
C: </findDomainsByContact>
C:
C: </searchSet>
C:
C: </request>
S: <?xml version="1.0"?>
S: <response xmlns="urn:ietf:params:xml:ns:iris1"
S: xmlns:iris="urn:ietf:params:xml:ns:iris1"
S: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
S:
S: <resultSet>
S: <answer>
S: <dreg:domain
S: xmlns="urn:ietf:params:xml:ns:dreg1"
S: xmlns:dreg="urn:ietf:params:xml:ns:dreg1"
S: authority="com" registryType="dreg1"
S: entityClass="domain-handle" entityName="tcs-com-1" >
S: <domainName>example.com</domainName>
S: <nameServer
S: iris:referentType="dreg:host"