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* iCal Import/Export CalDAV for [[Android (operating system)|Android]]<ref name="iCal Import/Export CalDAV">[http://www.drlue.tk/ical iCal Import/Export CalDAV]</ref>
* iCal Import/Export CalDAV for [[Android (operating system)|Android]]<ref name="iCal Import/Export CalDAV">[http://www.drlue.tk/ical iCal Import/Export CalDAV]</ref>
* [[vdirsyncer]] synchronizes calendars (and addressbooks) between two storages, e. g. CalDAV (CardDAV) server with a local folder or file.<ref>https://vdirsyncer.pimutils.org/</ref>
* [[vdirsyncer]] synchronizes calendars (and addressbooks) between two storages, e. g. CalDAV (CardDAV) server with a local folder or file.<ref>https://vdirsyncer.pimutils.org/</ref>
* [[Mailfence]] CalDAV client through iCAL/vCAL(only paid users)
* [[Mailfence]] CalDAV client through iCAL/vCAL(only paid users)<ref>38</ref>


===Server===
===Server===

Revision as of 09:59, 9 April 2020

CalDAV
Communication protocol
PurposeAccess remote scheduling information
IntroductionMarch 2007; 17 years ago (2007-03)
Based onWebDAV
OSI layerApplication
Port(s)Any
RFC(s)RFC 4791, 6638

Calendaring Extensions to WebDAV, or CalDAV, is an Internet standard allowing a client to access scheduling information on a remote server. It extends WebDAV (HTTP-based protocol for data manipulation) specification and uses iCalendar format for the data. The access protocol is defined by RFC 4791. It allows multiple client access to the same information thus allowing cooperative planning and information sharing. Many server and client applications support the protocol. Extensions to CalDAV for automated scheduling are also standardized, as RFC 6638.

History

The CalDAV specification was first published in 2003 as an Internet Draft submitted to the Internet Engineering Task Force (IETF) by Lisa Dusseault. In March 2007, the CalDAV specification was finished and published by the IETF as RFC 4791, authored by Cyrus Daboo (Apple), Bernard Desruissaux (Oracle), and Lisa Dusseault (CommerceNet). CalDAV is designed for implementation by any collaborative software, client or server, that needs to maintain, access or share collections of events. It is developed as an open standard to foster interoperability between software from different implementers.[clarification needed]

Specification

The architecture of CalDAV (partially inherited from the underlying specifications) organizes the data (events, tasks, free-busy info, notes) in directories (collections), where multiple items (resources) reside. The resources and collections can be accessed by one or more users, using standard HTTP and DAV semantics to detect conflicting changes, or to provide locking.

For access control the concept of ACLs are used, so each operation (view, edit, delete etc.) can be denied or granted per user. Therefore, the specification requires that CalDAV servers must support "WebDAV Access Control Protocol" (RFC 3744). The calendar resources must use iCalendar format, which allows the server to understand and process the data. Parsing the iCalendar items is necessary, because the server has to support a number of calendaring-specific operations such as doing free-busy time reports and expansion of recurring events. With this functionality, a user may synchronize his or her own calendar to a CalDAV server, and share it among multiple devices or with other users. The protocol also supports non-personal calendars, such as calendars for sites or organizations.

Software

Client

The list of CalDAV clients includes:[1]

Server

The list of CalDAV servers includes:[16]

See also

References

  1. ^ "CalDAV Clients (English)". September 18, 2010. Archived from the original on May 23, 2016. Retrieved December 17, 2010.
  2. ^ "Windows 10 can sync email/contacts/calendars with all major providers – chooses to pick winners and losers in the market instead". Ctrl. Retrieved March 2, 2017.
  3. ^ TaskSync
  4. ^ CalDAV-Sync
  5. ^ CalendarSync
  6. ^ DAVx⁵
  7. ^ CalDavZAP
  8. ^ EVO Collaborator for Outlook
  9. ^ "Using a CalDAV calendar". help.gnome.org. Retrieved February 28, 2019.
  10. ^ Fieldston Software
  11. ^ a b Horde Groupware
  12. ^ Outlook CalDav Synchronizer
  13. ^ iCal Import/Export CalDAV
  14. ^ https://vdirsyncer.pimutils.org/
  15. ^ 38
  16. ^ "CalDAV Servers (English)". Retrieved January 7, 2014.
  17. ^ "Baikal". Archived from the original on November 14, 2015. Retrieved November 8, 2013.
  18. ^ "Bedework". Archived from the original on December 2, 2011. Retrieved November 10, 2015.
  19. ^ Bynari Collaboration Suite
  20. ^ DAViCal
  21. ^ DPCalendar
  22. ^ "Daylite CalDAV Server". Archived from the original on October 15, 2015. Retrieved November 10, 2015.
  23. ^ EVO Mail Server
  24. ^ Google Calendar
  25. ^ Kerio Connect
  26. ^ Nextloud
  27. ^ Oracle Communications Calendar Server
  28. ^ ownCloud
  29. ^ Radicale
  30. ^ SOGo
  31. ^ sabre/dav
  32. ^ Scalix
  33. ^ Synovel
  34. ^ Xandikos
  35. ^ Zimbra
  36. ^ mod_caldav auf SourceForge
  37. ^ sync!Egw
  38. ^ Mailfence

RFCs

  • RFC 2616 – HTTP
  • RFC 3744 – WebDAV Access Control Protocol
  • RFC 4791 – CalDAV
  • RFC 4918 – WebDAV
  • RFC 5545 – iCalendar
  • RFC 5546 – iTIP
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