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<?php
/*
* Copyright 2005 - 2012 Zarafa B.V.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation with the following additional
* term according to sec. 7:
*
* According to sec. 7 of the GNU Affero General Public License, version
* 3, the terms of the AGPL are supplemented with the following terms:
*
* "Zarafa" is a registered trademark of Zarafa B.V. The licensing of
* the Program under the AGPL does not imply a trademark license.
* Therefore any rights, title and interest in our trademarks remain
* entirely with us.
*
* However, if you propagate an unmodified version of the Program you are
* allowed to use the term "Zarafa" to indicate that you distribute the
* Program. Furthermore you may use our trademarks where it is necessary
* to indicate the intended purpose of a product or service provided you
* use it in accordance with honest practices in industrial or commercial
* matters. If you want to propagate modified versions of the Program
* under the name "Zarafa" or "Zarafa Server", you may only do so if you
* have a written permission by Zarafa B.V. (to acquire a permission
* please contact Zarafa at trademark@zarafa.com).
*
* The interactive user interface of the software displays an attribution
* notice containing the term "Zarafa" and/or the logo of Zarafa.
* Interactive user interfaces of unmodified and modified versions must
* display Appropriate Legal Notices according to sec. 5 of the GNU
* Affero General Public License, version 3, when you propagate
* unmodified or modified versions of the Program. In accordance with
* sec. 7 b) of the GNU Affero General Public License, version 3, these
* Appropriate Legal Notices must retain the logo of Zarafa or display
* the words "Initial Development by Zarafa" if the display of the logo
* is not reasonably feasible for technical reasons. The use of the logo
* of Zarafa in Legal Notices is allowed for unmodified and modified
* versions of the software.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
include_once('backend/zarafa/mapi/class.recurrence.php');
class FreeBusyPublish {
var $session;
var $calendar;
var $entryid;
var $starttime;
var $length;
var $store;
var $proptags;
/**
* Constuctor
*
* @param mapi_session $session MAPI Session
* @param mapi_folder $calendar Calendar to publish
* @param string $entryid AddressBook Entry ID for the user we're publishing for
*/
function FreeBusyPublish($session, $store, $calendar, $entryid)
{
$properties["entryid"] = PR_ENTRYID;
$properties["parent_entryid"] = PR_PARENT_ENTRYID;
$properties["message_class"] = PR_MESSAGE_CLASS;
$properties["icon_index"] = PR_ICON_INDEX;
$properties["subject"] = PR_SUBJECT;
$properties["display_to"] = PR_DISPLAY_TO;
$properties["importance"] = PR_IMPORTANCE;
$properties["sensitivity"] = PR_SENSITIVITY;
$properties["startdate"] = "PT_SYSTIME:PSETID_Appointment:0x820d";
$properties["duedate"] = "PT_SYSTIME:PSETID_Appointment:0x820e";
$properties["recurring"] = "PT_BOOLEAN:PSETID_Appointment:0x8223";
$properties["recurring_data"] = "PT_BINARY:PSETID_Appointment:0x8216";
$properties["busystatus"] = "PT_LONG:PSETID_Appointment:0x8205";
$properties["label"] = "PT_LONG:PSETID_Appointment:0x8214";
$properties["alldayevent"] = "PT_BOOLEAN:PSETID_Appointment:0x8215";
$properties["private"] = "PT_BOOLEAN:PSETID_Common:0x8506";
$properties["meeting"] = "PT_LONG:PSETID_Appointment:0x8217";
$properties["startdate_recurring"] = "PT_SYSTIME:PSETID_Appointment:0x8235";
$properties["enddate_recurring"] = "PT_SYSTIME:PSETID_Appointment:0x8236";
$properties["location"] = "PT_STRING8:PSETID_Appointment:0x8208";
$properties["duration"] = "PT_LONG:PSETID_Appointment:0x8213";
$properties["responsestatus"] = "PT_LONG:PSETID_Appointment:0x8218";
$properties["reminder"] = "PT_BOOLEAN:PSETID_Common:0x8503";
$properties["reminder_minutes"] = "PT_LONG:PSETID_Common:0x8501";
$properties["contacts"] = "PT_MV_STRING8:PSETID_Common:0x853a";
$properties["contacts_string"] = "PT_STRING8:PSETID_Common:0x8586";
$properties["categories"] = "PT_MV_STRING8:PS_PUBLIC_STRINGS:Keywords";
$properties["reminder_time"] = "PT_SYSTIME:PSETID_Common:0x8502";
$properties["commonstart"] = "PT_SYSTIME:PSETID_Common:0x8516";
$properties["commonend"] = "PT_SYSTIME:PSETID_Common:0x8517";
$properties["basedate"] = "PT_SYSTIME:PSETID_Appointment:0x8228";
$properties["timezone_data"] = "PT_BINARY:PSETID_Appointment:0x8233";
$this->proptags = getPropIdsFromStrings($store, $properties);
$this->session = $session;
$this->calendar = $calendar;
$this->entryid = $entryid;
$this->store = $store;
}
/**
* Publishes the infomation
* @paam timestamp $starttime Time from which to publish data (usually now)
* @paam integer $length Amount of seconds from $starttime we should publish
*/
function publishFB($starttime, $length) {
$start = $starttime;
$end = $starttime + $length;
// Get all the items in the calendar that we need
$calendaritems = Array();
$restrict = Array(RES_OR,
Array(
// OR
// (item[start] >= start && item[start] <= end)
Array(RES_AND,
Array(
Array(RES_PROPERTY,
Array(RELOP => RELOP_GE,
ULPROPTAG => $this->proptags["startdate"],
VALUE => $start
)
),
Array(RES_PROPERTY,
Array(RELOP => RELOP_LE,
ULPROPTAG => $this->proptags["startdate"],
VALUE => $end
)
)
)
),
// OR
// (item[end] >= start && item[end] <= end)
Array(RES_AND,
Array(
Array(RES_PROPERTY,
Array(RELOP => RELOP_GE,
ULPROPTAG => $this->proptags["duedate"],
VALUE => $start
)
),
Array(RES_PROPERTY,
Array(RELOP => RELOP_LE,
ULPROPTAG => $this->proptags["duedate"],
VALUE => $end
)
)
)
),
// OR
// (item[start] < start && item[end] > end)
Array(RES_AND,
Array(
Array(RES_PROPERTY,
Array(RELOP => RELOP_LT,
ULPROPTAG => $this->proptags["startdate"],
VALUE => $start
)
),
Array(RES_PROPERTY,
Array(RELOP => RELOP_GT,
ULPROPTAG => $this->proptags["duedate"],
VALUE => $end
)
)
)
),
// OR
Array(RES_OR,
Array(
// OR
// (EXIST(ecurrence_enddate_property) && item[isRecurring] == true && item[end] >= start)
Array(RES_AND,
Array(
Array(RES_EXIST,
Array(ULPROPTAG => $this->proptags["enddate_recurring"],
)
),
Array(RES_PROPERTY,
Array(RELOP => RELOP_EQ,
ULPROPTAG => $this->proptags["recurring"],
VALUE => true
)
),
Array(RES_PROPERTY,
Array(RELOP => RELOP_GE,
ULPROPTAG => $this->proptags["enddate_recurring"],
VALUE => $start
)
)
)
),
// OR
// (!EXIST(ecurrence_enddate_property) && item[isRecurring] == true && item[start] <= end)
Array(RES_AND,
Array(
Array(RES_NOT,
Array(
Array(RES_EXIST,
Array(ULPROPTAG => $this->proptags["enddate_recurring"]
)
)
)
),
Array(RES_PROPERTY,
Array(RELOP => RELOP_LE,
ULPROPTAG => $this->proptags["startdate"],
VALUE => $end
)
),
Array(RES_PROPERTY,
Array(RELOP => RELOP_EQ,
ULPROPTAG => $this->proptags["recurring"],
VALUE => true
)
)
)
)
)
) // EXISTS OR
)
); // global OR
$contents = mapi_folder_getcontentstable($this->calendar);
mapi_table_restrict($contents, $restrict);
while(1) {
$rows = mapi_table_queryrows($contents, array_values($this->proptags), 0, 50);
if(!is_array($rows))
break;
if(empty($rows))
break;
foreach ($rows as $row) {
$occurrences = Array();
if(isset($row[$this->proptags['recurring']]) && $row[$this->proptags['recurring']]) {
$recur = new Recurrence($this->store, $row);
$occurrences = $recur->getItems($starttime, $starttime + $length);
} else {
$occurrences[] = $row;
}
$calendaritems = array_merge($calendaritems, $occurrences);
}
}
// $calendaritems now contains all the calendar items in the specified time
// frame. We now need to merge these into a flat array of begin/end/status
// objects. This also filters out all the 'free' items (status 0)
$freebusy = $this->mergeItemsFB($calendaritems);
// $freebusy now contains the start, end and status of all items, merged.
// Get the FB interface
try {
$fbsupport = mapi_freebusysupport_open($this->session, $this->store);
} catch (MAPIException $e) {
if($e->getCode() == MAPI_E_NOT_FOUND) {
$e->setHandled();
if(function_exists("dump")) {
dump("Error in opening freebusysupport object.");
}
}
}
// Open updater for this user
if(isset($fbsupport)) {
$updaters = mapi_freebusysupport_loadupdate($fbsupport, Array($this->entryid));
$updater = $updaters[0];
// Send the data
mapi_freebusyupdate_reset($updater);
mapi_freebusyupdate_publish($updater, $freebusy);
mapi_freebusyupdate_savechanges($updater, $start-24*60*60, $end);
// We're finished
mapi_freebusysupport_close($fbsupport);
}
}
/**
* Sorts by timestamp, if equal, then end before start
*/
function cmp($a, $b)
{
if ($a["time"] == $b["time"]) {
if($a["type"] < $b["type"])
return 1;
if($a["type"] > $b["type"])
return -1;
return 0;
}
return ($a["time"] > $b["time"] ? 1 : -1);
}
/**
* Function mergeItems
* @author Steve Hardy
*/
function mergeItemsFB($items)
{
$merged = Array();
$timestamps = Array();
$csubj = Array();
$cbusy = Array();
$level = 0;
$laststart = null;
foreach($items as $item)
{
$ts["type"] = 0;
$ts["time"] = $item[$this->proptags["startdate"]];
$ts["subject"] = $item[PR_SUBJECT];
$ts["status"] = $item[$this->proptags["busystatus"]];
$timestamps[] = $ts;
$ts["type"] = 1;
$ts["time"] = $item[$this->proptags["duedate"]];
$ts["subject"] = $item[PR_SUBJECT];
$ts["status"] = $item[$this->proptags["busystatus"]];
$timestamps[] = $ts;
}
usort($timestamps, Array($this, "cmp"));
$laststart = 0; // seb added
foreach($timestamps as $ts)
{
switch ($ts["type"])
{
case 0: // Start
if ($level != 0 && $laststart != $ts["time"])
{
$newitem["start"] = $laststart;
$newitem["end"] = $ts["time"];
$newitem["subject"] = join(",", $csubj);
$newitem["status"] = !empty($cbusy) ? max($cbusy) : 0;
if($newitem["status"] > 0)
$merged[] = $newitem;
}
$level++;
$csubj[] = $ts["subject"];
$cbusy[] = $ts["status"];
$laststart = $ts["time"];
break;
case 1: // End
if ($laststart != $ts["time"])
{
$newitem["start"] = $laststart;
$newitem["end"] = $ts["time"];
$newitem["subject"] = join(",", $csubj);
$newitem["status"] = !empty($cbusy) ? max($cbusy) : 0;
if($newitem["status"] > 0)
$merged[] = $newitem;
}
$level--;
array_splice($csubj, array_search($ts["subject"], $csubj, 1), 1);
array_splice($cbusy, array_search($ts["status"], $cbusy, 1), 1);
$laststart = $ts["time"];
break;
}
}
return $merged;
}
}
?>
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