- From: Norman Walsh <ndw@nwalsh.com>
- Date: Wed, 16 Nov 2011 07:19:26 -0500
- To: XProc Dev <xproc-dev@w3.org>
- Message-ID: <m2boscdzu9.fsf@nwalsh.com>
Geert Josten <geert.josten@dayon.nl> writes: > Is MIME something a user needs to care about? (i.e. isn't that something > that can be shielded from the user?) If you make the simplifying assumption that you only care about plain text or HTML, single part messages, then it's fairly easy (leaving the underlying configuration that David mentioned off the table for the moment.): <cx:send-mail xmlns:em="URN:ietf:params:email-xml:" xmlns:rf="URN:ietf:params:rfc822:"> <p:input port="source"> <p:inline exclude-inline-prefixes="em rf cx"> <em:Message> <rf:subject>Sample Plain Text Email</rf:subject> <rf:from> <em:Address> <em:name>Norman Walsh</em:name> <em:adrs>ndw@nwalsh.com</em:adrs> </em:Address> </rf:from> <rf:to> <em:Address> <em:adrs>ndw+mailtest@nwalsh.com</em:adrs> </em:Address> <em:Address> <em:name>Norman Walsh</em:name> <em:adrs>norman.walsh@marklogic.com</em:adrs> </em:Address> </rf:to> <em:content>Hello World</em:content> </em:Message> </p:inline> <p:input> </cx:send-mail> And Murray is right, maybe this is the 80/20 or even 90/10 case and we could stop there. But the engineer in me can't resist at least exploring 80-90 percent of the remaining 10-20 percent :-) Consider this pipeline fragment: <p:identity name="jpg"> <p:input port="source"> <p:data href="/Users/ndw/Documents/Graphics/Avatars/Avatar-16.jpg"/> </p:input> </p:identity> <p:identity name="log"> <p:input port="source"> <p:data href="/var/log/application/error.log"/> </p:input> </p:identity> <cx:send-mail xmlns:em="URN:ietf:params:email-xml:" xmlns:rf="URN:ietf:params:rfc822:"> <p:input port="source"> <p:inline exclude-inline-prefixes="em rf cx"> <em:Message> <rf:subject>Process failure</rf:subject> <rf:from>...</rf:from> <rf:to>...</rf:to> <em:content>Alert: Processing this image caused an error in operations.</em:content> </em:Message> </p:inline> <p:pipe step="jpg" port="result"/> <p:pipe step="log" port="result"/> </p:input> </cx:send-mail> That's supposed to send the text email with two attachments. Unfortunately, the mail infrastructure needs to know (at least) the content-type and content-disposition of each of the attachments. Maybe 80-90 percent of the remaining 10-20 percent is simply to make a best guess at the content type and send them as attachments. In this case, that works out ok. Probably. The c:data element for the image will include the content-type image/jpeg so that'll be ok. The log file might or might not have a content-type, but if it doesn't application/octet-stream is a plausible default. If we wanted to go even further, I think we'd have to do content inspection and transformation that I think is firmly in the last few percent. (I'm thinking of the case where an HTML message is sent that contains an img element; if you want the mail client to display the image inline, you have to use content-id and do other things that must be described in some spec I've never read.) Be seeing you, norm -- Norman Walsh Lead Engineer MarkLogic Corporation Phone: +1 413 624 6676 www.marklogic.com
Received on Wednesday, 16 November 2011 12:20:04 UTC