IPP> Need clarification: printer-uri and job-uri

[Carl Kugler]

While we're on the subject of printer-uri, here's excerpt from the PRO =
document:


3.9 (Attribute) Name
Some attributes are encoded in a special position.  These attribute are=
:
* "printer-uri": When the target is a printer and the transport is HTTP=
 or HTTP
(for TLS), the target printer-uri defined in  each operation in the IPP=
 model
document SHALL be an operation attribute called "printer-uri" and it SH=
ALL also
be specified outside of  the operation layer as the request-URI on the
Request-Line at the HTTP level.  This
*


Just to be perfectly clear, is this saying that the printer-uri must al=
ways
appear in BOTH the HTTP Request-Line AND the Operation attribute group?=








ipp-owner at pwg.org on 03/31/98 04:29:02 PM
Please respond to ipp-owner at pwg.org
To: ipp at pwg.org
cc:
Subject: IPP> printer-uri and job-uri




Greetings.


There are two issues related to printer-uri and job-uri that need
some clarifications.


Issue1:
  In the IPP Model document, there is no specification for the
  value-tags of "printer-uri" and "job-uri" attributes in a IPP
  request.


  According to the IPP Model document, section 3.1.3, the
  "printer-uri" attribute contains the Printer object's URIs
  which is one of the values in the Printer object's "printer-
  uri-supported" attribute.  This implies that the value-tag
  of "printer-uri" attribute must be of type "uri".  Similarly,
  the value-tag of "job-uri" attribute should be "uri" as well.




Issue 2:
  In the "Note:" section of 3.2.1.1 in the IPP Model document,
  it was mentioned that "The simplest Print-Job Request
  consists of just the Document Content, the "attributes-
  charset" and "attributes-natural-language" operation
  attributes, and nothing else."  However, in the description
  of Print-Job Request of section 15.3.4.3, the "printer-uri"
  attribute is specified as a MUST (indicated by (M)) and also
  in section 3.1.3 of the same document, it was indicated that
  either "printer-uri" or "job-uri" MUST appear in every
  operation request.  There seems to be some inconsistency here.


Please send your remarks/comments to the mailing list.


-PB


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