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caldav_db.h
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caldav_db.h
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/* caldav_db.h -- abstract interface for per-user CalDAV database
*
* Copyright (c) 1994-2012 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Carnegie Mellon University
* Center for Technology Transfer and Enterprise Creation
* 4615 Forbes Avenue
* Suite 302
* Pittsburgh, PA 15213
* (412) 268-7393, fax: (412) 268-7395
* innovation@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef CALDAV_DB_H
#define CALDAV_DB_H
#include <config.h>
extern time_t caldav_epoch;
extern time_t caldav_eternity;
#include <libical/ical.h>
#include "dav_db.h"
#ifndef HAVE_VAVAILABILITY
/* Allow us to compile without #ifdef HAVE_VAVAILABILITY everywhere */
#define ICAL_VAVAILABILITY_COMPONENT ICAL_X_COMPONENT
#define ICAL_XAVAILABLE_COMPONENT ICAL_X_COMPONENT
#endif
#ifndef HAVE_VPOLL
/* Allow us to compile without #ifdef HAVE_VPOLL everywhere */
#define ICAL_VPOLL_COMPONENT ICAL_NO_COMPONENT
#define ICAL_VVOTER_COMPONENT ICAL_X_COMPONENT
#define ICAL_METHOD_POLLSTATUS ICAL_METHOD_NONE
#define ICAL_VOTER_PROPERTY ICAL_NO_PROPERTY
#define icalproperty_get_voter icalproperty_get_attendee
#endif
/* Bitmask of calendar components */
enum {
/* "Real" components - MUST remain in this order (values used in DAV DB) */
CAL_COMP_VEVENT = (1<<0),
CAL_COMP_VTODO = (1<<1),
CAL_COMP_VJOURNAL = (1<<2),
CAL_COMP_VFREEBUSY = (1<<3),
CAL_COMP_VAVAILABILITY = (1<<4),
CAL_COMP_VPOLL = (1<<5),
/* Append additional "real" components here */
/* Other components - values don't matter - prepend here */
CAL_COMP_VALARM = (1<<13),
CAL_COMP_VTIMEZONE = (1<<14),
CAL_COMP_VCALENDAR = (1<<15)
};
struct caldav_db;
struct comp_flags {
unsigned recurring : 1; /* Has RRULE property */
unsigned transp : 1; /* Is TRANSParent */
unsigned status : 2; /* STATUS property value (see below) */
unsigned tzbyref : 1; /* VTIMEZONEs by reference */
unsigned mattach : 1; /* Has managed ATTACHment(s) */
};
/* Status values */
enum {
CAL_STATUS_BUSY = 0,
CAL_STATUS_CANCELED,
CAL_STATUS_TENTATIVE,
CAL_STATUS_UNAVAILABLE
};
struct caldav_data {
struct dav_data dav; /* MUST be first so we can typecast */
unsigned comp_type;
const char *ical_uid;
const char *organizer;
const char *dtstart;
const char *dtend;
struct comp_flags comp_flags;
const char *sched_tag;
};
typedef int caldav_cb_t(void *rock, struct caldav_data *cdata);
/* prepare for caldav operations in this process */
int caldav_init(void);
/* done with all caldav operations for this process */
int caldav_done(void);
/* get a database handle corresponding to mailbox */
struct caldav_db *caldav_open_mailbox(struct mailbox *mailbox);
struct caldav_db *caldav_open_userid(const char *userid);
/* close this handle */
int caldav_close(struct caldav_db *caldavdb);
/* lookup an entry from 'caldavdb' by resource
(optionally inside a transaction for updates) */
int caldav_lookup_resource(struct caldav_db *caldavdb,
const char *mailbox, const char *resource,
struct caldav_data **result,
int tombstones);
/* lookup an entry from 'caldavdb' by iCal UID
(optionally inside a transaction for updates) */
int caldav_lookup_uid(struct caldav_db *caldavdb, const char *ical_uid,
struct caldav_data **result);
/* process each entry for 'mailbox' in 'caldavdb' with cb() */
int caldav_foreach(struct caldav_db *caldavdb, const char *mailbox,
caldav_cb_t *cb, void *rock);
/* write an entry to 'caldavdb' */
int caldav_write(struct caldav_db *caldavdb, struct caldav_data *cdata);
int caldav_writeentry(struct caldav_db *caldavdb, struct caldav_data *cdata,
icalcomponent *ical);
/* delete an entry from 'caldavdb' */
int caldav_delete(struct caldav_db *caldavdb, unsigned rowid);
/* delete all entries for 'mailbox' from 'caldavdb' */
int caldav_delmbox(struct caldav_db *caldavdb, const char *mailbox);
/* begin transaction */
int caldav_begin(struct caldav_db *caldavdb);
/* commit transaction */
int caldav_commit(struct caldav_db *caldavdb);
/* abort transaction */
int caldav_abort(struct caldav_db *caldavdb);
char *caldav_mboxname(const char *userid, const char *name);
/* Get time period (start/end) of a component based in RFC 4791 Sec 9.9 */
void caldav_get_period(icalcomponent *comp, icalcomponent_kind kind, struct icalperiodtype *period);
int caldav_get_events(struct caldav_db *caldavdb,
const char *mailbox, const char *ical_uid,
caldav_cb_t *cb, void *rock);
/* Process each entry for 'caldavdb' with a modseq higher than oldmodseq,
* in ascending order of modseq.
* If mailbox is not NULL, only process entries of this mailbox.
* If max_records is positive, only call cb for at most this entries. */
int caldav_get_updates(struct caldav_db *caldavdb,
modseq_t oldmodseq, const char *mailbox, int kind,
int max_records, caldav_cb_t *cb, void *rock);
#endif /* CALDAV_DB_H */

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