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dav-compliance.rst

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DAV Compliance

This document aims to document the compliance with various RFCs.

rfc4918.txt (Core WebDAV) (obsoletes rfc2518)

Mostly supported.

HTTP Methods

  • PROPFIND [supported]
  • PROPPATCH [supported]
  • MKCOL [supported]
  • DELETE [supported]
  • PUT [supported]
  • COPY [not implemented]
  • MOVE [not implemented]
  • LOCK [not implemented]
  • UNLOCK [not implemented]

HTTP Headers

  • (9.1) Dav [supported]
  • (9.2) Depth ['0, '1' and 'infinity' are supported]
  • (9.3) Destination [only used with COPY/MOVE, which are not supported]
  • (9.4) If [not supported]
  • (9.5) Lock-Token [not supported]
  • (9.6) Overwrite [only used with COPY/MOVE, which are not supported]
  • (9.7) Status-URI [not supported]
  • (9.8) Timeout [not supported, only used for locks]

DAV Properties

  • (15.1) creationdate [supported]
  • (15.2) displayname [supported]
  • (15.3) getcontentlanguage [supported]
  • (15.4) getcontentlength [supported]
  • (15.5) getcontenttype [supported]
  • (15.6) getetag [supported]
  • (15.7) getlastmodified [supported]
  • (15.8) lockdiscovery [supported]
  • (15.9) resourcetype [supported]
  • (15.10) supportedlock [supported]
  • (RFC2518 ONLY - 13.10) source [not supported]

rfc3253.txt (Versioning Extensions)

Broadly speaking, only features related to the REPORT method are supported.

HTTP Methods

  • REPORT [supported]
  • CHECKOUT [not supported]
  • CHECKIN [not supported]
  • UNCHECKOUT [not supported]
  • MKWORKSPACE [not supported]
  • UPDATE [not supported]
  • LABEL [not supported]
  • MERGE [not supported]
  • VERSION-CONTROL [not supported]
  • BASELINE-CONTROL [not supported]
  • MKACTIVITY [not supported]

DAV Properties

  • DAV:comment [supported]
  • DAV:creator-displayname [not supported]
  • DAV:supported-method-set [not supported]
  • DAV:supported-live-property-set [not supported]
  • DAV:supported-report-set [supported]
  • DAV:predecessor-set [not supported]
  • DAV:successor-set [not supported]
  • DAV:checkout-set [not supported]
  • DAV:version-name [not supported]
  • DAV:checked-out [not supported]
  • DAV:chcked-in [not supported]
  • DAV:auto-version [not supported]

DAV Reports

  • DAV:expand-property [supported]
  • DAV:version-tree [not supported]

rfc5323.txt (WebDAV "SEARCH")

Not supported

HTTP Methods

  • SEARCH [not supported]

DAV Properties

  • DAV:datatype [not supported]
  • DAV:searchable [not supported]
  • DAV:selectable [not supported]
  • DAV:sortable [not supported]
  • DAV:caseless [not supported]
  • DAV:operators [not supported]

rfc3744.txt (WebDAV access control)

Not really supported

DAV Properties

  • DAV:alternate-uri-set [not supported]
  • DAV:principal-URL [supported]
  • DAV:group-member-set [not supported]
  • DAV:group-membership [supported]
  • DAV:owner [supported]
  • DAV:group [not supported]
  • DAV:current-user-privilege-set [supported]
  • DAV:supported-privilege-set [not supported]
  • DAV:acl [not supported]
  • DAV:acl-restrictions [not supported]
  • DAV:inherited-acl-set [not supported]
  • DAV:principal-collection-set [not supported]

DAV Reports

  • DAV:acl-principal-prop-set [not supported]
  • DAV:principal-match [not supported]
  • DAV:principal-property-search [not supported]
  • DAV:principal-search-property-set [not supported]

rfc4791.txt (CalDAV)

Fully supported.

DAV Properties

  • CALDAV:calendar-description [supported]
  • CALDAV:calendar-home-set [supported]
  • CALDAV:calendar-timezone [supported]
  • CALDAV:supported-calendar-component-set [supported]
  • CALDAV:supported-calendar-data [supported]
  • CALDAV:max-resource-size [supported]
  • CALDAV:min-date-time [supported]
  • CALDAV:max-date-time [supported]
  • CALDAV:max-instances [supported]
  • CALDAV:max-attendees-per-instance [supported]

HTTP Methods

  • MKCALENDAR [not supported]

DAV Reports

  • CALDAV:calendar-query [supported]
  • CALDAV:calendar-multiget [supported]
  • CALDAV:free-busy-query [supported]

rfc6352.txt (CardDAV)

Fully supported.

DAV Properties

  • CARDDAV:addressbook-description [supported]
  • CARDDAV:supported-address-data [supported]
  • CARDDAV:max-resource-size [supported]
  • CARDDAV:addressbook-home-set [supported]
  • CARDDAV:princial-address [supported]

DAV Reports

  • CARDDAV:addressbook-query [supported]
  • CARDDAV:addressbook-multiget [supported]

rfc6638.txt (CalDAV scheduling extensions)

DAV Properties

  • CALDAV:schedule-outbox-URL [supported]
  • CALDAV:schedule-inbox-URL [supported]
  • CALDAV:calendar-user-address-set [supported]
  • CALDAV:calendar-user-type [supported]
  • CALDAV:schedule-calendar-transp [supported]
  • CALDAV:schedule-default-calendar-URL [supported]
  • CALDAV:schedule-tag [supported]

rfc6764.txt (Locating groupware services)

Most of this is outside of the scope of xandikos, but it does support DAV:current-user-principal

rfc7809.txt (CalDAV Time Zone Extensions)

Not supported

DAV Properties

  • CALDAV:timezone-service-set [supported]
  • CALDAV:calendar-timezone-id [not supported]

rfc5397.txt (WebDAV Current Principal Extension)

DAV Properties

  • CALDAV:current-user-principal [supported]

Proprietary extensions

Custom properties used by various clients

  • CARDDAV:max-image-size [supported]

https://github.com/apple/ccs-calendarserver/blob/master/doc/Extensions/caldav-ctag.txt

  • DAV:getctag [supported]

https://github.com/apple/ccs-calendarserver/blob/master/doc/Extensions/caldav-proxy.txt

  • DAV:calendar-proxy-read-for [supported]
  • DAV:calendar-proxy-write-for [supported]

Apple-specific Properties

  • calendar-color [supported]
  • calendar-order [supported]
  • getctag [supported]
  • refreshrate [supported]
  • source

XMPP Subscriptions

  • xmpp-server
  • xmpp-heartbeat
  • xmpp-uri

inf-it properties

  • headervalue [supported]
  • settings [supported]
  • addressbook-color [supported]

AgendaV properties

https://tools.ietf.org/id/draft-ietf-calext-caldav-attachments-03.html

  • CALDAV:max-attachments-per-resource [supported]
  • CALDAV:max-attachment-size [supported]
  • CALDAV:managed-attachments-server-URL [supported]

rfc5995.txt (POST to create members)

Fully supported.

DAV Properties

  • DAV:add-member [supported]

HTTP Methods

  • POST [supported]

rfc5689 (Extended MKCOL)

Fully supported

HTTP Methods

  • MKCOL [supported]

rfc7529.txt (WebDAV Quota)

DAV properties

  • {DAV:}quote-available-bytes [supported]
  • {DAV:}quote-used-bytes [supported]

rfc4709 (WebDAV Mount)

This RFC documents a mechanism that allows clients to find the WebDAV mount associated with a specific page. It's unclear to the writer what the value of this is - an alternate resource in the HTML page would also do.

As far as I can tell, there is only a single server side implementation and a single client side implementation of this RFC. I don't have access to the client implementation (Xythos Drive) and the server side implementation is in SabreDAV.

Experimental support for WebDAV Mount is available in the 'mount' branch, but won't be merged without a good use case.

Managed Attachments

Apple extension:

https://datatracker.ietf.org/doc/html/draft-ietf-calext-caldav-attachments-04

Currently unsupported.