Network Working Group                                         P. Hoffman
Internet-Draft                                            VPN Consortium
Expires: February 15, 2005                               August 17, 2004


                            The wais: Scheme
                     draft-hoffman-wais-uri-00.txt

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   Copyright (C) The Internet Society (2004).  All Rights Reserved.

Abstract

   This document specifies the wais: Uniform Resource Identifier (URI)
   scheme that was originally specified in RFC 1738.  The purpose of
   this document is to allow RFC 1738 to be moved to historic while
   keeping the information about the scheme on standards track.

.  Introduction

   URIs are were previously defined in RFC 2396 [  Internet-Draft The wais: Scheme August 2004 Resource Identifiers (URI): Generic Syntax"'>RFC2396], which was
   updated by draft-fielding-uri-rfc2396bis [2396bis].  Those documents
   also specify how to define schemes for URIs.



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   The first definition for many URI schemes appeared in RFC 1738
   [RFC1738].  Because that document has been moved to Historic status,
   this document copies the wais: scheme from it to allow that material
   to remain on standards track.

.  Scheme Definition

   The WAIS URL scheme is used to designate WAIS databases, searches, or
   individual documents available from a WAIS database.  The WAIS
   protocol is described in RFC 1625 [RFC1625].  Although the WAIS
   protocol is based on Z39.50-1988, the WAIS URL scheme is not intended
   for use with arbitrary Z39.50 services.

   A WAIS URL takes one of the following forms:

      wais://<host>:<port>/<database>
      wais://<host>:<port>/<database>?<search>
      wais://<host>:<port>/<database>/<wtype>/<wpath>

   If :<port> is omitted, the port defaults to 210.  The first form
   designates a WAIS database that is available for searching.  The
   second form designates a particular search.  <database> is the name
   of the WAIS database being queried.

   The third form designates a particular document within a WAIS
   database to be retrieved.  In this form <wtype> is the WAIS
   designation of the type of the object.  Many WAIS implementations
   require that a client know the "type" of an object prior to
   retrieval, the type being returned along with the internal object
   identifier in the search response.  The <wtype> is included in the
   URL in order to allow the client interpreting the URL adequate
   information to actually retrieve the document.

   The <wpath> of a WAIS URL consists of the WAIS document-id.  The WAIS
   document-id should be treated opaquely; it may only be decomposed by
   the server that issued it.

.  Security Considerations

   There are many security considerations for URI schemes discussed in
   draft-fielding-uri-rfc2396bis [2396bis].

  Informative References

   [RFC1738]  Berners-Lee, T., Masinter, L. and M. McCahill, "Uniform
              Resource Locators (URL)", RFC 1738, December 1994.

   [RFC2396]  Berners-Lee, T., Fielding, R. and L. Masinter, "Uniform



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              Resource Identifiers (URI): Generic Syntax", RFC 2396,
              August 1998.

   [2396bis]  Berners-Lee, T., Fielding, R. and L. Masinter, "Uniform
              Resource Identifiers (URI): Generic Syntax", work in
              progress, draft-fielding-uri-rfc2396bis-nn.txt.

   [RFC1625]  St. Pierre, M., Fullton, J., Gamiel, K., Goldman, J.,
              Kahle, B., Kunze, J., Morris, H. and F. Schiettecatte,
              "WAIS over Z39.50-1988", RFC 1625, June 1994.


Author's Address

   Paul Hoffman
   VPN Consortium
   127 Segre Place
   Santa Cruz, CA  95060
   US

   EMail: paul.hoffman@vpnc.org






























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