Attachments in the iTIP
When someone outside the Calendar Server is invited to an event as a mailto attendee, an iTIP invitation is usually sent to the attendee using the iMIP protocol. If there are any attachments attached to the event, they will be send depending on the value of sendattach parameter (0 or 1). This provides the organizer, the granularity of deciding whether it is a minor update to the event which does not require sending the attachments, or a major update where new attachments might have been added and requires sending the attachments to the end user.
If sendattach=0, the VEVENT information sent out as an iTIP does not have any information regarding the attachment, or might behave similar to fetchattach=0. If sendattach=1, the URI in the VEVENT structure uses the 'CID' URI scheme to identify the attachments in the multipart mime message that is sent out using iMIP.
The example below shows an iMIP message. Note that the values of the CID URI are the values of content-id mime header field in the attachment.
This is a multi-part message in MIME format. boundary="----_=_NextPart_002_01C5BAFF.DAA83C14" ------_=_NextPart_002_01C5BAFF.DAA83C14 Content-Type: text/calendar; method=REQUEST; name="meeting.ics" Content-Transfer-Encoding: 8bit BEGIN:VCALENDAR BEGIN:VEVENT UID:uid1 RECURRENCE-ID:rid1 DTSTAMP:20050919T165229Z SUMMARY:Calendar Server Engineering meeting DTSTART:20050919T223000Z DTEND:20050919T233000Z CREATED:20050627T184431Z LAST-MODIFIED:20050829T221947Z PRIORITY:5 SEQUENCE:5 CLASS:PUBLIC ORGANIZER;CN="Asavari Ukidve" ;X-NSCP-ORGANIZER-UID=ShortName ;X-S1CS-EMAIL=FirstName.LastName@email.com :savri ATTACH:CID:uid1rid1attachid-1 ATTACH:CID:uid1rid1attachid-2 STATUS:CONFIRMED TRANSP:OPAQUE X-NSCP-ORIGINAL-DTSTART:20050919T223000Z X-NSCP-LANGUAGE:en X-NSCP-DTSTART-TZID:America/Los_Angeles X-NSCP-TOMBSTONE:0 X-NSCP-ONGOING:0 X-NSCP-ORGANIZER-EMAIL:FirstName.LastName@email.com X-NSCP-GSE-COMPONENT-STATE;X-NSCP-GSE-COMMENT="REQUEST-PENDING":131073 END:VEVENT END:VCALENDAR ------_=_NextPart_001_01C5BAFF.DAA83C14 Content-Type: application/octet-stream; name="All day event.ics" Content-Transfer-Encoding: base64 Content-ID: <uid1rid1attachid-1> Content-Description: All day event.ics Content-Disposition: attachment; filename="Alldayevent.ics" QkVHSU46VkNBTEVOREFSDQpQUk9ESUQ6LS8vTWljcm9zb2Z0IENvcnBvcmF0aW9uLy9PdXRsb29r IDkuMCBNSU1FRElSLy9FTg0KVkVSU0lPTjoyLjANCk1FVEhPRDpQVUJMSVNIDQpCRUdJTjpWRVZF TlQNCk9SR0FOSVpFUjpNQUlMVE86c3YxMzQ1MTJAaXBsYW5ldC5jb20NCkRUU1RBUlQ7VkFMVUU9 REFURToyMDAzMDEyOA0KRFRFTkQ7VkFMVUU9REFURToyMDAzMDEyOQ0KVFJBTlNQOlRSQU5TUEFS RU5UDQpTRVFVRU5DRTowDQpVSUQ6MDQwMDAwMDA4MjAwRTAwMDc0QzVCNzEwMUE4MkUwMDgwMDAw MDAwMEEwQTc5MEQ2QzBDNkMyMDEwMDAwMDAwMDAwMDAwMDAwMTAwDQogMDAwMDBBRDNEMEVDQUU2 MTAwNDQ2OEYwQjAyQUEyQTcxNTZCQQ0KRFRTVEFNUDoyMDAzMDEyOFQxOTMxNDVaDQpTVU1NQVJZ OkFsbCBkYXkgZXZlbnQNClBSSU9SSVRZOjUNCkNMQVNTOlBVQkxJQw0KRU5EOlZFVkVOVA0KRU5E OlZDQUxFTkRBUg0K ------_=_NextPart_001_01C5BAFF.DAA83C14 Content-Type: text/html; name="dayviewhtml.htm" Content-Transfer-Encoding: base64 Content-ID: <uid1rid1attachid-2> Content-Description: dayviewhtml.htm Content-Disposition: attachment; filename="dayviewhtml.htm" PEhUTUw+PEhFQUQ+PFNDUklQVD4gdmFyIGptYWluID0gcGFyZW50OyB2YXIgZm9ybV9zdWJtaXR0 ZWQgPSAnMCc7IGZ1bmN0aW9uIGltYWdlc29mZigpIHsgaWYgKGRvY3VtZW50LmltYWdlcykgeyBk b2N1bWVudC5ob21lcGFnZS5zcmMgPSBob21lcGFnZW9mZi5zcmM7IGRvY3VtZW50LmRvY3VtZW50 YXRpb24uc3JjID0gZG9jdW1lbnRhdGlvbm9mZi5zcmM7IGRvY3VtZW50LnVzZXJsb2dvdXQuc3Jj ID0gdXNlcmxvZ291dG9mZi5zcmM7IH0gfSBmdW5jdGlvbiBpbWFnZW9uKGltZ05hbWUpIHsgaWYg KGRvY3VtZW50LmltYWdlcykgeyBkb2N1bWVudFtpbWdOYW1lXS5zcmMgPSBldmFsKGltZ05hbWUg KyAib24uc3JjIik7IH0gfSBmdW5jdGlvbiBvdmVyKGltZ05hbWUpIHsgZG9jdW1lbnRbaW1nTmFt ZV0uc3JjPSBldmFsKGltZ05hbWUgKyAib3Zlci5zcmMiKTsgfSBmdW5jdGlvbiBvdXQoaW1nTmFt ZSkgeyBkb2N1bWVudFtpbWdOYW1lXS5zcmM9IGV2YWwoaW1nTmFtZSArICJvZmYuc3JjIik7IH0g PC9TQ1JJUFQ+PHNjcmlwdD4gdmFyIG9wZW5lciA9IGptYWluLm9wZW5lcjsgdmFyIGFjY2VwdF9m dW5jcyA9IG5ldyBBcnJheSgpOyBmdW5jdGlvbiBnZXRhcnJheSgpIHsgcmV0dXJuIG5ldyBBcnJh eSgpOyB9IGZ1bmN0aW9uIGFjY2VwdChuZXdkYXRhKSB7IHZhciBzdWJtaXRfZm9ybSA9IGZhbHNl OyB2YXIgeDsgZm9yICggeCA9IDA7IHggPCBhY2NlcHRfZnVuY3MubGVuZ3RoOyB4KyspIHsgdmFy IGZ1bmMgPSBhY2NlcHRfZnVuY3NbeF07IGlmIChmdW5jKG5ld2RhdGEpKSBzdWJtaXRfZm9ybSA9 IHRydWU7IH0gaWYgKHN1Ym1pdF9mb3JtKSB7IGptYWluLmZyYW1lc1sxXS5kb2N1bWVudC5mb3Jt LnN1Ym1pdCgpOyB9IH0gZnVuY3Rpb24gY2xvc2VfYWxsKCkgeyBqbWFpbi5jbG9zZV9hbGwoKTsg fSBmdW5jdGlvbiBpY3NOb3JtYWxpemUoYSkgeyB2YXIgYiA9ICcnOyBmb3IgKGkgPSAwOyBpIDwg YS5sZW5ndGg7IGkrKykgeyB2YXIgYyA9IGEuc3Vic3RyaW5nKGksIGkgKyAxKTsgaWYgKGMgPT0g JyAnIHx8IGMgPT0gJ1x0JyB8fCBjID09ICdccicgfHwgYyA9PSAnXG4nKSB7IGIgKz0gJ34nOyB9 IGdmFaXBZT0iMSI+PC9URD48L1RSPjwvVEFCTEU+PC9mb3JtPjwvYm9keT48L0hUTUw+ ------_=_NextPart_001_01C5BAFF.DAA83C14-- |
- © 2010, Oracle Corporation and/or its affiliates