EUROPYTHON 2005<br/><br/>&gt; CPSMailAccess, a webmail for CPS3<br/>Tarek Ziadé &lt;tziade@nuxeo.com&gt;<br/><br/>2005/07/27<br/><br/><br/>Abstract<br/>     <br/><br/>CPSMailAccess goals Architecture Spotlight on features Demo What's next ? Q&amp;A<br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>2<br/><br/><br/>CPSMailAccess goals<br/>    <br/><br/>Usable in today's CPS Easily portable to upcoming CPS As easy to use as a rich mail client Deep integration to the portal Reliable for big intranets<br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>3<br/><br/><br/>CPSMailAccess choices<br/><br/><br/>Usable today and portable:<br/><br/><br/>Five: see Martinj talk Ajax See architecture<br/><br/><br/><br/>Act a bit as a rich mail client<br/><br/><br/><br/><br/>Integration and reliability<br/><br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>4<br/><br/><br/>Architecture: ZODB Use 1/4<br/><br/><br/>ZODB use<br/><br/><br/>Based on the 80/20 rule<br/><br/><br/>portal_webmail box_tarek box_bob box_bill ...<br/><br/>80%: full Zope side actions<br/><br/><br/>browsing, reading, writing Mail Server calls<br/><br/><br/><br/>20%: synchronizing<br/><br/><br/><br/><br/>portal_webmail<br/>  <br/><br/>Mailbox collection Shared parameters Easy administration<br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>5<br/><br/><br/>Architecture: ZODB Use 2/4<br/><br/><br/>ZODB use<br/><br/><br/>Mailbox:<br/> <br/><br/>portal_webmail box_tarek INBOX Message 1 Message 2 box_bob box_bill<br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL 6<br/><br/>Folder &amp; Message structure Catalog singleton Contains Ids &amp; Headers Very Light Links to mail server Can cache «visible parts»<br/><br/>CAT<br/><br/><br/><br/>MailMessage object<br/>   <br/><br/><br/>Architecture: Connectors 3/4<br/><br/><br/>Stateful connection<br/> <br/><br/>ConnectionList / Connectionwatcher 2 connectors per user<br/> <br/><br/>1 Synchronization connector 1 « UI actions » connector connection<br/>watcher<br/><br/>CPSMailAccess<br/><br/>Connection pool 4s tarek_sync tarek_browse bob_sync<br/><br/>IMAP Server<br/><br/>connection provider<br/><br/>10s 2s<br/><br/>IMAP Server 2<br/>7<br/><br/>idle time<br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/><br/>Architecture: Indexation 4/4<br/><br/><br/>Indexation<br/> <br/><br/>One catalog per mailbox Several levels:<br/> <br/><br/>Header indexation Header+Body indexation<br/><br/> <br/><br/>Indexes all mail relations See Zemantic use spotlight<br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>8<br/><br/><br/>Spotlight on features 1/6<br/><br/><br/>Zemantic<br/><br/><br/>Semantic catalog based on Rdflib<br/> <br/><br/>btrees-based ZODB backend Full text Indexation<br/><br/><br/><br/><br/><br/>CPSMailAccess: use case for Zemantic at Paris Sprint Indexation usage<br/>  <br/><br/>Searching Threading Virtual folders<br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>9<br/><br/><br/>Spotlight on features 2/6<br/><br/><br/>Indexing a mail for Searching<br/>Msg 3 &lt;From&gt; tz@nuxeo.com<br/><br/>&lt;Subject&gt;<br/><br/>&lt;To&gt;<br/><br/>sf@nuxeo.com sf@nuxeo.com fg@nuxeo.com<br/><br/>&quot;Look at this&quot;<br/><br/>Subject<br/><br/>Predicate<br/><br/>Object<br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL 10<br/><br/><br/>Spotlight on features 3/6<br/><br/><br/>Indexing a mail for Threading<br/><br/>Msg 3<br/><br/>&lt;In-Reply-To&gt;<br/><br/>Msg 4<br/><br/>&lt;References&gt;<br/><br/>sf@nuxeo.com Msg 1 Msg 4<br/><br/>Subject<br/><br/>Predicate<br/><br/>Object<br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL 11<br/><br/><br/>Spotlight on features 4/6<br/><br/><br/>Indexing a mail for Virtual foldering<br/><br/>Msg 3 &lt;Folder&gt;<br/><br/>Archive Folder 1 INBOX<br/><br/>Subject<br/><br/>Predicate<br/><br/>Object<br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL 12<br/><br/><br/>Spotlight on features 5/6<br/><br/><br/>Reverend (not finished yet)<br/>   <br/><br/>Light-weight Bayesian classifier Used for spam detection ZODB backend Releasing mail-oriented pre-trained networks<br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>13<br/><br/><br/>Spotlight on features 6/6<br/><br/><br/>Mail editor<br/><br/><br/>Ajax based (soon based on Azax ? Xforms ?)<br/><br/><br/>Azax project started during EP2005 sprint<br/><br/> <br/><br/>Mail filtering Portal Mail-Document cycle<br/>Document creation<br/><br/>Mail<br/>Mail creation<br/><br/>CPS Document<br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>14<br/><br/><br/>Demo<br/>    <br/><br/>Synchronizing Filtering Searching Sending mails ...<br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>15<br/><br/><br/>What's next ?<br/><br/><br/>Scalability<br/><br/><br/>Zasync for background synchronization<br/> <br/><br/>Doable with double-connection Big work done on protecting from conflicts Prevents mail sending bottlenecks Indirect Feedback<br/><br/><br/><br/>Z3 System based Maildir for mail sending<br/> <br/><br/><br/><br/>Short way to Z3, thanks to Five<br/>  <br/><br/>The « Z3 style » in already there Minimum refactoring needed Soft migration Desktop link<br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL 16<br/><br/><br/><br/>Extension:<br/><br/><br/><br/>Q&amp;A<br/>  <br/><br/>Thank you ! Questions Links:<br/><br/><br/>http://cps-project.org/sections/projects/cpsmailaccess<br/><br/>  <br/><br/>http://z3lab.org tziade@nuxeo.org Mailing lists (see cps-project.org and z3lab.org)<br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>17<br/><br/><br/>Copyright 2005 Nuxeo SAS ­ Licensed under the GNU FDL<br/><br/>18