Tickets :: Comment on [#12782] vCard export via CardDAV interface contains properties with empty values violating the spec

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Comment	> When sending contact data to a CardDAV client, Horde 5 creates files like: > > #################### > BEGIN:VCARD > VERSION:3.0 > UID:20131018104100.uYYOysmgwqS6tRPiYvf9wA1@domain.de > NICKNAME: > X-EPOCSECONDNAME: > BDAY: > X-ANNIVERSARY: > X-SPOUSE: > PHOTO: > TZ;VALUE=text: > EMAIL;TYPE=INTERNET: > TEL;TYPE=HOME,VOICE: > TEL;TYPE=FAX,HOME: > TEL;TYPE=WORK,VOICE: > TEL;TYPE=CELL,VOICE: > TEL;TYPE=FAX: > TEL;TYPE=PAGER: > TITLE: > ROLE: > LOGO: > CATEGORIES:Business > NOTE:Eine Notiz > URL: > X-WV-ID: > N:ABC AG;;;; > FN:ABC AG > ORG:ABC AG; > ADR;TYPE=HOME:;;;;;; > ADR;TYPE=WORK:;;;;;; > END:VCARD > #################### > > There are many properties like BDAY (birthday) which have no value > assigned. This confuses some CardDAV sync clients like the well known > CardDAV-Sync app http://dmfs.org/carddav/. This sync clients sets > "01.01.1970" as birthday, which results in getting many wrong > calendar entries on Jan 1st. > > According to discussions with the app developer and my own research > on common vCard file style, fields like "BDAY" must have a proper > property value assigned if they are given at all. The ABNF does > explicitly say that the value must be "date-value" or > "date-time-value" (not optional, i.e. not empty). > > See specs: > http://tools.ietf.org/html/rfc2426#page-31 > http://tools.ietf.org/html/rfc6350 > > Remark: Manual vCard exports of the address book do not contain those > properties with empty values. So, this is probably just related to > the CardDAV interface. > > So, please just export properties which have a value (like the > regular address book export already does).
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