RFC2957 - The application/whoispp-query Content-Type

王朝other·作者佚名 2008-05-31

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Network Working Group L. Daigle

Request for Comments: 2957 Thinking Cat Enterprises

Category: Informational P. Faltstrom

Cisco Systems Inc.

October 2000

The application/whoispp-query Content-Type

Status of this Memo

This memo provides information for the Internet community. It does

not specify an Internet standard of any kind. Distribution of this

memo is unlimited.

Abstract

This document defines the eXPression of Whois++ protocol (RFC1835)

queries within MIME (Multipurpose Internet Mail Extensions) (RFC

2046) media types. The intention of this document, in conjunction

with RFC2958 is to enable MIME-enabled mail software, and other

systems using Internet media types, to carry out Whois++

transactions.

1. MIME Registration Information

To: iana@isi.edu

Subject: Registration of MIME media type application/whoispp-query

MIME Type name: Application

MIME suBType name: whoispp-query

Required parameters: none

Optional parameters: none

Encoding considerations: Any valid MIME encodings may be used

Security considerations: This content-type contains purely

descriptive information (i.e., no directives). There are security

considerations with regards to the appropriateness (privacy) of

information provided through the use of this content-type, and the

authenticity of the information so-provided. This content-type

provides no native mechanisms for authentication.

Published specification: this document

Person & email address to contact for further information:

Leslie L. Daigle

leslie@thinkingcat.com

Intended usage: common

2. whoispp-query Syntax

The following grammar, which uses BNF-like notation as defined in

[RFC2234] defines the set of acceptable input to a Whois++ server.

As sUCh, it describes the expected structure of a whoispp-query media

type object.

N.B.: As outlined in the ABNF definition, rule names and string

literals are in the US-ASCII character set, and are case-insensitive.

whois-command = ( system-command / terms [":" globalcnstrnts] )

system-command = "constraints" / "describe" / "commands" /

"polled-by" / "polled-for" / "version" / "list" /

"show" [1*sp bytestring] / "help" [1*sp

bytestring] / "?" [bytestring]

terms = and-expr *("or" and-expr)

and-expr = not-expr *("and" not-expr)

not-expr = ["not"] (term / ( "(" terms ")" ))

term = ( generalterm / specificterm / combinedterm )

localcnstrnts

generalterm = bytestring

specificterm = specificname "=" bytestring

specificname = "handle" / "value" / "template"

combinedterm = attributename "=" bytestring

globalcnstrnts = globalcnstrnt *(";" globalcnstrnt)

globalcnstrnt = "format" "=" format / "maxfull" "=" 1*digit /

"maxhits" "=" 1*digit / "case" "=" casevalue /

"search" "=" searchvalue / opt-globalcnst

opt-globalcnst = "authenticate" "=" auth-method / "language" "="

language / "incharset" "=" characterset /

"outcharset" "=" characterset / "ignore" "="

attriblist / "include" "=" attriblist

localcnstrnts = 0*(";" localcnstrnt)

localcnstrnt = "case" "=" casevalue / "search" "=" searchvalue

format = "full" / "abridged" / "handle" / "summary" /

"server-to-ask"

auth-method = bytestring

language = <The language code defined in RFC1766 [ALVE95]>

characterset = "us-ascii" / "iso-8859-1" / "iso-8859-2" / "iso-

8859-3" / "iso-8859-4" / "iso-8859-5" / "iso-

8859-6" / "iso-8859-7" / "iso-8859-8" / "iso-

8859-9" / "iso-8859-10" / "UNICODE-1-1-UTF-8" /

"UNICODE-2-0-UTF-8" "UTF-8"

;"UTF-8" is as defined in [RFC2279]. This is

;the character set label that should be used

;for UTF encoded information; the labels

;"UNICODE-2-0-UTF-8" and "UNICODE-1-1-UTF-8"

;are retained primarily for compatibility with

;older Whois++ servers (and as outlined in

;[RFC2279]).

searchvalue = "exact" / "substring" / "regex" / "fuzzy" /

"lstring"

casevalue = "ignore" / "consider"

bytestring = 0*charbyte

attributename = 1*attrbyte

attriblist = attributename 0*("," attributename)

charbyte = "\" specialbyte / normalbyte

normalbyte = <%d33-255, except specialbyte>

attrbyte = <%d33-127 except specialbyte> /

"\" <specialbyte except

":" " " tab nl>

specialbyte = " " / tab / "=" / "," / ":" / ";" / "\" /

"*" / "." / "(" / ")" /

"[" / "]" / "^" /

"$" / "!" / "?"

tab = %d09

sp = %d32 ; space

digit = "0" / "1" / "2" / "3" / "4" /

"5" / "6" / "7" / "8" /

"9"

nl = %d13 %d10 ; CR LF

NOTE: Blanks that are significant to a query must be escaped. The

following characters, when significant to the query, may be preceded

and/or followed by a single blank:

: ; , ( ) = !

3. Security Considerations

Security issues are discussed in section 1.

4. References

[ALVE95] Alvestrand H., "Tags for the Identification of Languages",

RFC1766, March 1995.

[RFC2234] Crocker, D. and P. Overell, "Augmented BNF for Syntax

Specifications: ABNF", RFC2234, November 1997.

[RFC2958] Daigle, L. and P. Faltstrom, "The application/whoispp-

response Content-type", RFC2958, October 2000.

[RFC1835] Deutsch, P., Schoultz, R., Faltstrom, P. and C. Weider,

"Architecture of the WHOIS++ service", RFC1835, August

1995.

[RFC2046] Freed, N. and N. Borenstein, "Multipurpose Internet Mail

Extensions (MIME) Part Two: Media Types", RFC2046,

November 1996.

[HARR85] Harrenstein K., Stahl M. and E. Feinler, "NICNAME/WHOIS",

RFC954, October 1985.

[POST82] Postel J., "Simple Mail Transfer Protocol", STD 10, RFC

821, August 1982.

[IIIR] Weider C. and P. Deutsch, "A Vision of an Integrated

Internet Information Service", RFC1727, December 1994.

[WINDX] Weider, C., Fullton, J. and S. Spero, "Architecture of the

Whois++ Index Service", RFC1913, February 1996.

[RFC2279] Yergeau F., " UTF-8, a transformation format of ISO 10646",

RFC2279, January 1998.

5. Authors' Addresses

Leslie L. Daigle

Thinking Cat Enterprises

Email: leslie@thinkingcat.com

Patrik Faltstrom

Cisco Systems Inc

170 W Tasman Drive SJ-13/2

San Jose CA 95134

USA

EMail: paf@cisco.com

URL: http://www.cisco.com

6. Full Copyright Statement

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or assist in its implementation may be prepared, copied, published

and distributed, in whole or in part, without restriction of any

kind, provided that the above copyright notice and this paragraph are

included on all such copies and derivative works. However, this

document itself may not be modified in any way, such as by removing

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Internet organizations, except as needed for the purpose of

developing Internet standards in which case the procedures for

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followed, or as required to translate it into languages other than

English.

The limited permissions granted above are perpetual and will not be

revoked by the Internet Society or its successors or assigns.

This document and the information contained herein is provided on an

"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING

TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING

BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION

HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF

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Acknowledgement

Funding for the RFCEditor function is currently provided by the

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