PWG> Re: PMP> RE: prtChannelType proposal for WS-Print

PWG> Re: PMP> RE: prtChannelType proposal for WS-Print

PWG> Re: PMP> RE: prtChannelType proposal for WS-Print

Ira McDonald blueroofmusic at gmail.com
Thu Nov 1 14:10:14 EDT 2007


Hi Pete,

Comments inline in your reply below.

All on pwg at pwg.org - this thread is the online review of a new
prtChannelType for Microsoft's WS Print protocol.

Cheers,
- Ira

On 11/1/07, Zehler, Peter <Peter.Zehler at xerox.com> wrote:
> Comments below and updated proposal
>
> Peter Zehler
> XEROX
> Xerox Research Center Webster
> Email: Peter.Zehler at Xerox.com
> Voice: (585) 265-8755
> FAX: (585) 265-7441
> US Mail: Peter Zehler
> Xerox Corp.
> 800 Phillips Rd.
> M/S 128-25E
> Webster NY, 14580-9701
>
>
> -----Original Message-----
> From: Ira McDonald [mailto:blueroofmusic at gmail.com]
> Sent: Thursday, November 01, 2007 11:24 AM
> To: Zehler, Peter; Ira McDonald
> Cc: pmp at pwg.org; Mike Fenelon
> Subject: Re: PMP> RE: prtChannelType proposal for WS-Print
>
> Hi Pete,
>
> Comments:
>
> (1) RFC 2396 (in syntaxes) is obsoleted by RFC 3986.
> <PZ>OK</PZ>
>
> (2) I suggest that instead of 'Address' (somewhat inaccurate), the
>     keyword for WS-Print Service URL be 'ServiceURI' - consistent with
>     other existing channels and with the PWG Port Monitor MIB.
> <PZ>I choose Adress based on the WS-Transfer/WS-MetadataExchange
> elemenat name in Relationships.  I can live with ServiceURI.  It should
> be noted that the multiplicity is probably wrong since the Service can
> be available at multiple URLs (e.g. IPv4 and IPv6 IP addresses in a
> URL).  And yes I know that is not a good idea but it happens in
> unmanaged networks.</PZ>

<Ira>  Agreed - Multiplicity should be 'Multiple' - it's an obvious bug
in 'chIPP' (which I wrote with Tom Hastings) where we said 'Single',
because the later Conformance says you should list *all* URI.
And 'ServiceURI' corresponds to 'ppmPortServiceNameOrURI'
</Ira>

>
> (3) Syntax for DeviceUUID should be changed to
>     'URI (Unicode UTF-8 per RFC 3986)'
>     - consistent with other channels and RFC 4122 (your reference)
>     - note that OCTET STRING is BINARY and illegal in human-readable
>     prtChannelInfo object (which must be string parseable).
> <PZ>That is what I originally had.  As long as a value such as
> 'uuid:172582cc-4dc4-4786-abc2-d1c307123ac6' is valid it works for
> me.</PZ>

<Ira> Yes - it works fine.  Note that the actual value is supposed to
be 'urn:uuid:...' (per RFC 4122).  The IANA registered scheme name is
'urn:uuid:' *not* just 'uuid:'.
<Ira>

>
> Cheers,
> - Ira
>
>
> Updated proposal:
> ________________________________________________
>
> chWSPrint(46), -- Not in RFC 3805
>
> -- Web Services on Devices Printer (WS-Print),
>
> -- (WS-Print 1.0 - see [WS-Print])
>
> --
>
> -- WS-Print Service URL
>
> -- Keyword: ServiceURI
>
> -- Syntax: URI (Unicode UTF-8 per
>
> -- [RFC3986])
>
> -- Status: Mandatory
>
> -- Multiplicity: Multiple
>
> -- Default: not applicable
>
> -- Description: URI of this WS-Print Printer
>
> -- within Internet naming scope. Unicode
>
> -- UTF-8 [RFC3629] string with
>
> -- hexadecimal escapes for any non-ASCII
>
> -- characters (per [RFC3986]).
>
> -- Conformance: A WS-Print Printer shall list
>
> -- all URLs it supports (one per Channel
>
> -- entry).
>
> --
>
> -- WS-Print Device ID
>
> -- Keyword: DeviceUUID
>
> -- Syntax: 'URI (Unicode UTF-8 per RFC 3986)
>
> -- Status: Optional
>
> -- Multiplicity: Single
>
> -- Default: not applicable
>
> -- Description: Globally unique protocol
>
> -- independent identifier for the device
>
> -- hosting the WS-Print Printer
>
> -- (per [RFC4122]).
>
> --
>
> --
>
> -- WS-Print Service ID
>
> -- Keyword: ServiceId
>
> -- Syntax: URI (Unicode UTF-8 per
>
> -- [RFC3986])
>
> -- Status: Optional
>
> -- Multiplicity: Single
>
> -- Default: not applicable
>
> -- Description: Identifier for the
>
> --  host which MUST be persisted
>
> -- across re-initialization and MUST NOT
>
> -- be shared across multiple Host elements.
>
> -- Conformance: This value should be
>
> -- compared directly, as a case-sensitive
>
> -- string, with no attempt to make a relative
>
> -- URI into an absolute URI, to process escape
>
> -- sequences or to otherwise canonicalize it.
>
> -- (See [DEVPROF])
>
> --
>
> [WS-Print] Microsoft Corporation, "Print Service Definition Version 1.0
> For Web Services on Devices ", November 2006, (See
> http://www.microsoft.com/whdc/rally/wsdspecs.mspx)
>
>
>
> [RFC 4122] P. Leach, et al, "A Universally Unique Identifier (UUID) URN
> Namespace," July 2005. (See http://www.ietf.org/rfc/rfc4122.txt)
>
>
>
> [DEVPROF] - J. Schlimmer, et all,  "Devices Profile for Web Services",
> February 2006.
>
> (See http://specs.xmlsoap.org/ws/2006/02/devprof/devicesprofile.pdf )
>
> ________________________________________________
>
>
>
>
> On 11/1/07, Zehler, Peter <Peter.Zehler at xerox.com> wrote:
> >
> >
> >
> >
> > All,
> >
> >
> >
> > Here are the 4 changes that have been proposed.  I have updated the
> text in
> > the included mail note below.
> >
> > 1) Change chWsPrint to chWSPrint
> >
> > 2) Change Keyword: Device UUID to Keyword: DeviceUUID
> >
> > 3) Make WS-Print Device ID optional
> >
> > 4) Make WS-Print Service ID optional
> >
> >
> >
> > The other question I have is what should be used for the value of
> > prtChannelProtocolVersion?
> >
> > a)      "Web Services on Devices Printer, v1.0"
> >
> > b)
> > "http://schemas.microsoft.com/windows/2006/08/wdp/print"
> >
> > c)      "WSPrint:
> > http://schemas.microsoft.com/windows/2006/08/wdp/print"
> >
> >
> >
> > Pete
> >
> >
> >
> >
> > Peter Zehler
> >  XEROX
> >  Xerox Research Center Webster
> >  Email: Peter.Zehler at Xerox.com
> >  Voice: (585) 265-8755
> >  FAX: (585) 265-7441
> >  US Mail: Peter Zehler
> >  Xerox Corp.
> >  800 Phillips Rd.
> >  M/S 128-25E
> >  Webster NY, 14580-9701
> >
> >
> >
> >  ________________________________
> >
> >
> > From: Zehler, Peter
> >  Sent: Wednesday, October 31, 2007 2:30 PM
> >  To: 'pmp at pwg.org'
> >  Cc: 'Mike Fenelon'
> >  Subject: prtChannelType proposal for WS-Print
> >
> >
> >
> > All,
> >
> > Below is my proposal for the extension of PrtChannelTypeTC to cover
> WS-Print
> > capable devices.
> >
> > Comments?
> >
> > Pete
> >
> > ________________________________________________
> >
> > chWSPrint(46), -- Not in RFC 3805
> >
> > -- Web Services on Devices Printer (WS-Print),
> >
> > -- (WS-Print 1.0 - see [WS-Print])
> >
> > --
> >
> > -- WS-Print Service URL
> >
> > -- Keyword: Address
> >
> > -- Syntax: URI (Unicode UTF-8 per
> >
> > -- [RFC2396])
> >
> > -- Status: Mandatory
> >
> > -- Multiplicity: Single
> >
> > -- Default: not applicable
> >
> > -- Description: URI of this WS-Print Printer
> >
> > -- within Internet naming scope. Unicode
> >
> > -- UTF-8 [RFC3629] string with
> >
> > -- hexadecimal escapes for any non-ASCII
> >
> > -- characters (per [RFC2396]).
> >
> > -- Conformance: A WS-Print Printer shall list
> >
> > -- all URLs it supports (one per Channel
> >
> > -- entry).
> >
> > --
> >
> > -- WS-Print Device ID
> >
> > -- Keyword: DeviceUUID
> >
> > -- Syntax: OCTET STRING (SIZE(0..63)
> >
> > -- Status: Optional
> >
> > -- Multiplicity: Single
> >
> > -- Default: not applicable
> >
> > -- Description: Globally unique protocol
> >
> > -- independent identifier for the device
> >
> > -- hosting the WS-Print Printer
> >
> > -- (per [RFC4122]).
> >
> > --
> >
> > --
> >
> > -- WS-Print Service ID
> >
> > -- Keyword: ServiceId
> >
> > -- Syntax: URI (Unicode UTF-8 per
> >
> > -- [RFC2396])
> >
> > -- Status: Optional
> >
> > -- Multiplicity: Single
> >
> > -- Default: not applicable
> >
> > -- Description: Identifier for the
> >
> > --  host which MUST be persisted
> >
> > -- across re-initialization and MUST NOT
> >
> > -- be shared across multiple Host elements.
> >
> > -- Conformance: This value should be
> >
> > -- compared directly, as a case-sensitive
> >
> > -- string, with no attempt to make a relative
> >
> > -- URI into an absolute URI, to process escape
> >
> > -- sequences or to otherwise canonicalize it.
> >
> > -- (See [DEVPROF])
> >
> > --
> >
> > [WS-Print] Microsoft Corporation, "Print Service Definition Version
> 1.0 For
> > Web Services on Devices ", November 2006, (See
> > http://www.microsoft.com/whdc/rally/wsdspecs.mspx)
> >
> >
> >
> > [RFC 4122] P. Leach, et al, "A Universally Unique Identifier (UUID)
> URN
> > Namespace," July 2005. (See
> > http://www.ietf.org/rfc/rfc4122.txt)
> >
> >
> >
> > [DEVPROF] - J. Schlimmer, et all,  "Devices Profile for Web Services",
> > February 2006.
> >
> > (See
> > http://specs.xmlsoap.org/ws/2006/02/devprof/devicesprofile.pdf
> > )
> >
> > ________________________________________________
> >
> >
> >
> >
> >
> >
> > Peter Zehler
> >  XEROX
> >  Xerox Research Center Webster
> >  Email: Peter.Zehler at Xerox.com
> >  Voice: (585) 265-8755
> >  FAX: (585) 265-7441
> >  US Mail: Peter Zehler
> >  Xerox Corp.
> >  800 Phillips Rd.
> >  M/S 128-25E
> >  Webster NY, 14580-9701
> >
> >
> >
> >  ________________________________
> >
> >
> > From: Zehler, Peter
> >  Sent: Tuesday, October 30, 2007 7:00 PM
> >  To: 'pmp at pwg.org'
> >  Cc: 'Mike Fenelon'
> >  Subject: prtChannelType for WS-Print
> >
> >
> >
> > All,
> >
> > I would like to see chWsPrint(46) registered for the WS-Print print
> channel.
> >  What would have to be done to accomplish this?  I would also like to
> see
> > the prtChannelProtocolVersion be defined to hold the target namespace
> for
> > the protocol.
> >
> > Pete
> >
> >
> >
> > Peter Zehler
> >  XEROX
> >  Xerox Research Center Webster
> >  Email: Peter.Zehler at Xerox.com
> >  Voice: (585) 265-8755
> >  FAX: (585) 265-7441
> >  US Mail: Peter Zehler
> >  Xerox Corp.
> >  800 Phillips Rd.
> >  M/S 128-25E
> >  Webster NY, 14580-9701
> >
> >
>
>
> --
> Ira McDonald (Musician / Software Architect)
> Chair - Linux Foundation Open Printing WG
> Blue Roof Music / High North Inc
> PO Box 221  Grand Marais, MI  49839
> work: +1-906-494-2434
> home: +1-906-494-2697
> email: blueroofmusic at gmail.com
>


-- 
Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Blue Roof Music / High North Inc
PO Box 221  Grand Marais, MI  49839
work: +1-906-494-2434
home: +1-906-494-2697
email: blueroofmusic at gmail.com



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