Web Calendar Access Protocol

Web Calendar Access Protocol (WCAP) er en protokoll for ekstern klient-tjener-tilgang på digitale kalendere basert på internett-standardene XML, HTTP, iCalendar, og vCard.

WCAP ble opprettet for bruk med produktet som til slutt ble Sun Java System Calendar Server, men ble også brukt av åpen-kildekode-prosjektet Buni Meldware. WCAP bruker enkle HTTP GET-kommandoer for å få tilgang til iCalendar-, Freebusy-, TODO- og vCard-oppføringer. WCAP-responser er enten det tradisjonelle tekstskjemaet eller en XML-form av iCalendar eller de andre nevnte standardene. Det finnes flere programtillegg (plugins), inkludert for Mozilla Thunderbird, Novell Evolution og Microsoft Outlook. 

CalDAV er en konkurrerende protokoll som per 2007 gjenningikk standardisering.]

Eksempel

Klient 
GET /wcap/get_freebusy.wcap?appid=mozilla-calendar&calid=mailto%3Atom%40localhost&busyonly=1&dtstart=20070521T040000Z&dtend=20070525T040000Z&fmt-out=text%2Fxml&id=17046506 HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.10) Gecko/20070403 Thunderbird/1.5.0.10
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip, deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache

Respons 
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
X-Powered-By: Servlet 2.4; JBoss-4.0.4.GA (build: CVSTag=JBoss_4_0_4_GA date=200605151000)/Tomcat-5.5
Set-Cookie: JSESSIONID=41DAC48C79927D68EDFAF5FBFD491236; Path=/
Content-Type: text/html;charset=ISO-8859-1
Content-Length: 1399
Date: Mon, 21 May 2007 19:43:37 GMT

<?xml version="1.0" encoding="UTF-8"?>
<iCalendar>
<iCal version="2.0" prodid="-//Buni Meldware Calendar Server 0.8//EN" METHOD="PUBLISH">
<X-NSCP-CALPROPS-LAST-MODIFIED>20061102T170639Z</X-NSCP-CALPROPS-LAST-MODIFIED>
<X-NSCP-CALPROPS-CREATED>20060814T110002Z</X-NSCP-CALPROPS-CREATED>
<X-NSCP-CALPROPS-READ>999</X-NSCP-CALPROPS-READ>
<X-NSCP-CALPROPS-WRITE>999</X-NSCP-CALPROPS-WRITE>
<X-NSCP-CALPROPS-RELATIVE-CALID>tom</X-NSCP-CALPROPS-RELATIVE-CALID>
<X-NSCP-CALPROPS-NAME>tom</X-NSCP-CALPROPS-NAME>
<X-NSCP-CALPROPS-PRIMARY-OWNER>tom</X-NSCP-CALPROPS-PRIMARY-OWNER>
<X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>@@o^c^WDEIC^g</X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>
<X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>@@o^a^RSF^g</X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>
<X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>@^a^rsf^g</X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>
<X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>@^c^^g</X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>
<X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>@^p^r^g</X-NSCP-CALPROPS-ACCESS-CONTROL-ENTRY>
<X-NSCP-CALPROPS-RESOURCE>0</X-NSCP-CALPROPS-RESOURCE>
<X-S1CS-CALPROPS-ALLOW-DOUBLEBOOKING>1</X-S1CS-CALPROPS-ALLOW-DOUBLEBOOKING>
<FREEBUSY>
<START>20070521T040000Z</START>
<END>20070525T040000Z</END>
<FB FBTYPE="BUSY">20070521T130000Z/20070521T140000Z</FB><FB FBTYPE="BUSY">20070521T150000Z/20070521T160000Z</FB>
</FREEBUSY>
<X-NSCP-WCAP-ERRNO>0</X-NSCP-WCAP-ERRNO>
</iCal>
</iCalendar>

Referanser 

Kalenderprogramvare
Sun Microsystems programvare