/backend/zarafa/mapi/class.baserecurrence.php
PHP | 1945 lines | 1154 code | 338 blank | 453 comment | 335 complexity | 6fc3151affb8bb22e76ab3bcd182af25 MD5 | raw file
Possible License(s): AGPL-3.0
- <?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/>.
- *
- */
- /**
- * BaseRecurrence
- * this class is superclass for recurrence for appointments and tasks. This class provides all
- * basic features of recurrence.
- */
- class BaseRecurrence
- {
- /**
- * @var object Mapi Message Store (may be null if readonly)
- */
- var $store;
- /**
- * @var object Mapi Message (may be null if readonly)
- */
- var $message;
- /**
- * @var array Message Properties
- */
- var $messageprops;
- /**
- * @var array list of property tags
- */
- var $proptags;
- /**
- * @var recurrence data of this calendar item
- */
- var $recur;
- /**
- * @var Timezone data of this calendar item
- */
- var $tz;
- /**
- * Constructor
- * @param resource $store MAPI Message Store Object
- * @param resource $message the MAPI (appointment) message
- * @param array $properties the list of MAPI properties the message has.
- */
- function BaseRecurrence($store, $message)
- {
- $this->store = $store;
- if(is_array($message)) {
- $this->messageprops = $message;
- } else {
- $this->message = $message;
- $this->messageprops = mapi_getprops($this->message, $this->proptags);
- }
- if(isset($this->messageprops[$this->proptags["recurring_data"]])) {
- // There is a possibility that recurr blob can be more than 255 bytes so get full blob through stream interface
- if (strlen($this->messageprops[$this->proptags["recurring_data"]]) >= 255) {
- $this->getFullRecurrenceBlob();
- }
- $this->recur = $this->parseRecurrence($this->messageprops[$this->proptags["recurring_data"]]);
- }
- if(isset($this->proptags["timezone_data"]) && isset($this->messageprops[$this->proptags["timezone_data"]])) {
- $this->tz = $this->parseTimezone($this->messageprops[$this->proptags["timezone_data"]]);
- }
- }
- function getRecurrence()
- {
- return $this->recur;
- }
- function getFullRecurrenceBlob()
- {
- $message = mapi_msgstore_openentry($this->store, $this->messageprops[PR_ENTRYID]);
- $recurrBlob = '';
- $stream = mapi_openproperty($message, $this->proptags["recurring_data"], IID_IStream, 0, 0);
- $stat = mapi_stream_stat($stream);
- for ($i = 0; $i < $stat['cb']; $i += 1024) {
- $recurrBlob .= mapi_stream_read($stream, 1024);
- }
- if (!empty($recurrBlob)) {
- $this->messageprops[$this->proptags["recurring_data"]] = $recurrBlob;
- }
- }
- /**
- * Function for parsing the Recurrence value of a Calendar item.
- *
- * Retrieve it from Named Property 0x8216 as a PT_BINARY and pass the
- * data to this function
- *
- * Returns a structure containing the data:
- *
- * type - type of recurrence: day=10, week=11, month=12, year=13
- * subtype - type of day recurrence: 2=monthday (ie 21st day of month), 3=nday'th weekdays (ie. 2nd Tuesday and Wednesday)
- * start - unix timestamp of first occurrence
- * end - unix timestamp of last occurrence (up to and including), so when start == end -> occurrences = 1
- * numoccur - occurrences (may be very large when there is no end data)
- *
- * then, for each type:
- *
- * Daily:
- * everyn - every [everyn] days in minutes
- * regen - regenerating event (like tasks)
- *
- * Weekly:
- * everyn - every [everyn] weeks in weeks
- * regen - regenerating event (like tasks)
- * weekdays - bitmask of week days, where each bit is one weekday (weekdays & 1 = Sunday, weekdays & 2 = Monday, etc)
- *
- * Monthly:
- * everyn - every [everyn] months
- * regen - regenerating event (like tasks)
- *
- * subtype 2:
- * monthday - on day [monthday] of the month
- *
- * subtype 3:
- * weekdays - bitmask of week days, where each bit is one weekday (weekdays & 1 = Sunday, weekdays & 2 = Monday, etc)
- * nday - on [nday]'th [weekdays] of the month
- *
- * Yearly:
- * everyn - every [everyn] months (12, 24, 36, ...)
- * month - in month [month] (although the month is encoded in minutes since the startning of the year ........)
- * regen - regenerating event (like tasks)
- *
- * subtype 2:
- * monthday - on day [monthday] of the month
- *
- * subtype 3:
- * weekdays - bitmask of week days, where each bit is one weekday (weekdays & 1 = Sunday, weekdays & 2 = Monday, etc)
- * nday - on [nday]'th [weekdays] of the month [month]
- * @param string $rdata Binary string
- * @return array recurrence data.
- */
- function parseRecurrence($rdata)
- {
- if (strlen($rdata) < 10) {
- return;
- }
- $ret["changed_occurences"] = array();
- $ret["deleted_occurences"] = array();
- $data = unpack("Vconst1/Crtype/Cconst2/Vrtype2", $rdata);
- $ret["type"] = $data["rtype"];
- $ret["subtype"] = $data["rtype2"];
- $rdata = substr($rdata, 10);
- switch ($data["rtype"])
- {
- case 0x0a:
- // Daily
- if (strlen($rdata) < 12) {
- return $ret;
- }
- $data = unpack("Vunknown/Veveryn/Vregen", $rdata);
- $ret["everyn"] = $data["everyn"];
- $ret["regen"] = $data["regen"];
- switch($ret["subtype"])
- {
- case 0:
- $rdata = substr($rdata, 12);
- break;
- case 1:
- $rdata = substr($rdata, 16);
- break;
- }
- break;
- case 0x0b:
- // Weekly
- if (strlen($rdata) < 16) {
- return $ret;
- }
- $data = unpack("Vconst1/Veveryn/Vregen", $rdata);
- $rdata = substr($rdata, 12);
- $ret["everyn"] = $data["everyn"];
- $ret["regen"] = $data["regen"];
- $ret["weekdays"] = 0;
- if ($data["regen"] == 0) {
- $data = unpack("Vweekdays", $rdata);
- $rdata = substr($rdata, 4);
- $ret["weekdays"] = $data["weekdays"];
- }
- break;
- case 0x0c:
- // Monthly
- if (strlen($rdata) < 16) {
- return $ret;
- }
- $data = unpack("Vconst1/Veveryn/Vregen/Vmonthday", $rdata);
- $ret["everyn"] = $data["everyn"];
- $ret["regen"] = $data["regen"];
- if ($ret["subtype"] == 3) {
- $ret["weekdays"] = $data["monthday"];
- } else {
- $ret["monthday"] = $data["monthday"];
- }
- $rdata = substr($rdata, 16);
- if ($ret["subtype"] == 3) {
- $data = unpack("Vnday", $rdata);
- $ret["nday"] = $data["nday"];
- $rdata = substr($rdata, 4);
- }
- break;
- case 0x0d:
- // Yearly
- if (strlen($rdata) < 16)
- return $ret;
- $data = unpack("Vmonth/Veveryn/Vregen/Vmonthday", $rdata);
- $ret["month"] = $data["month"];
- $ret["everyn"] = $data["everyn"];
- $ret["regen"] = $data["regen"];
- if ($ret["subtype"] == 3) {
- $ret["weekdays"] = $data["monthday"];
- } else {
- $ret["monthday"] = $data["monthday"];
- }
- $rdata = substr($rdata, 16);
- if ($ret["subtype"] == 3) {
- $data = unpack("Vnday", $rdata);
- $ret["nday"] = $data["nday"];
- $rdata = substr($rdata, 4);
- }
- break;
- }
- if (strlen($rdata) < 16) {
- return $ret;
- }
- $data = unpack("Cterm/C3const1/Vnumoccur/Vconst2/Vnumexcept", $rdata);
- $rdata = substr($rdata, 16);
- $ret["term"] = $data["term"];
- $ret["numoccur"] = $data["numoccur"];
- $ret["numexcept"] = $data["numexcept"];
- // exc_base_dates are *all* the base dates that have been either deleted or modified
- $exc_base_dates = array();
- for($i = 0; $i < $ret["numexcept"]; $i++)
- {
- if (strlen($rdata) < 4) {
- // We shouldn't arrive here, because that implies
- // numexcept does not match the amount of data
- // which is available for the exceptions.
- return $ret;
- }
- $data = unpack("Vbasedate", $rdata);
- $rdata = substr($rdata, 4);
- $exc_base_dates[] = $this->recurDataToUnixData($data["basedate"]);
- }
- if (strlen($rdata) < 4) {
- return $ret;
- }
- $data = unpack("Vnumexceptmod", $rdata);
- $rdata = substr($rdata, 4);
- $ret["numexceptmod"] = $data["numexceptmod"];
- // exc_changed are the base dates of *modified* occurrences. exactly what is modified
- // is in the attachments *and* in the data further down this function.
- $exc_changed = array();
- for($i = 0; $i < $ret["numexceptmod"]; $i++)
- {
- if (strlen($rdata) < 4) {
- // We shouldn't arrive here, because that implies
- // numexceptmod does not match the amount of data
- // which is available for the exceptions.
- return $ret;
- }
- $data = unpack("Vstartdate", $rdata);
- $rdata = substr($rdata, 4);
- $exc_changed[] = $this->recurDataToUnixData($data["startdate"]);
- }
- if (strlen($rdata) < 8) {
- return $ret;
- }
- $data = unpack("Vstart/Vend", $rdata);
- $rdata = substr($rdata, 8);
- $ret["start"] = $this->recurDataToUnixData($data["start"]);
- $ret["end"] = $this->recurDataToUnixData($data["end"]);
- // this is where task recurrence stop
- if (strlen($rdata) < 16) {
- return $ret;
- }
- $data = unpack("Vreaderversion/Vwriterversion/Vstartmin/Vendmin", $rdata);
- $rdata = substr($rdata, 16);
- $ret["startocc"] = $data["startmin"];
- $ret["endocc"] = $data["endmin"];
- $readerversion = $data["readerversion"];
- $writerversion = $data["writerversion"];
- $data = unpack("vnumber", $rdata);
- $rdata = substr($rdata, 2);
- $nexceptions = $data["number"];
- $exc_changed_details = array();
- // Parse n modified exceptions
- for($i=0;$i<$nexceptions;$i++)
- {
- $item = array();
- // Get exception startdate, enddate and basedate (the date at which the occurrence would have started)
- $data = unpack("Vstartdate/Venddate/Vbasedate", $rdata);
- $rdata = substr($rdata, 12);
- // Convert recurtimestamp to unix timestamp
- $startdate = $this->recurDataToUnixData($data["startdate"]);
- $enddate = $this->recurDataToUnixData($data["enddate"]);
- $basedate = $this->recurDataToUnixData($data["basedate"]);
- // Set the right properties
- $item["basedate"] = $this->dayStartOf($basedate);
- $item["start"] = $startdate;
- $item["end"] = $enddate;
- $data = unpack("vbitmask", $rdata);
- $rdata = substr($rdata, 2);
- $item["bitmask"] = $data["bitmask"]; // save bitmask for extended exceptions
- // Bitmask to verify what properties are changed
- $bitmask = $data["bitmask"];
- // ARO_SUBJECT: 0x0001
- // Look for field: SubjectLength (2b), SubjectLength2 (2b) and Subject
- if(($bitmask &(1 << 0))) {
- $data = unpack("vnull_length/vlength", $rdata);
- $rdata = substr($rdata, 4);
- $length = $data["length"];
- $item["subject"] = ""; // Normalized subject
- for($j = 0; $j < $length && strlen($rdata); $j++)
- {
- $data = unpack("Cchar", $rdata);
- $rdata = substr($rdata, 1);
- $item["subject"] .= chr($data["char"]);
- }
- }
- // ARO_MEETINGTYPE: 0x0002
- if(($bitmask &(1 << 1))) {
- $rdata = substr($rdata, 4);
- // Attendees modified: no data here (only in attachment)
- }
- // ARO_REMINDERDELTA: 0x0004
- // Look for field: ReminderDelta (4b)
- if(($bitmask &(1 << 2))) {
- $data = unpack("Vremind_before", $rdata);
- $rdata = substr($rdata, 4);
- $item["remind_before"] = $data["remind_before"];
- }
- // ARO_REMINDER: 0x0008
- // Look field: ReminderSet (4b)
- if(($bitmask &(1 << 3))) {
- $data = unpack("Vreminder_set", $rdata);
- $rdata = substr($rdata, 4);
- $item["reminder_set"] = $data["reminder_set"];
- }
- // ARO_LOCATION: 0x0010
- // Look for fields: LocationLength (2b), LocationLength2 (2b) and Location
- // Similar to ARO_SUBJECT above.
- if(($bitmask &(1 << 4))) {
- $data = unpack("vnull_length/vlength", $rdata);
- $rdata = substr($rdata, 4);
- $item["location"] = "";
- $length = $data["length"];
- $data = substr($rdata, 0, $length);
- $rdata = substr($rdata, $length);
- $item["location"] .= $data;
- }
- // ARO_BUSYSTATUS: 0x0020
- // Look for field: BusyStatus (4b)
- if(($bitmask &(1 << 5))) {
- $data = unpack("Vbusystatus", $rdata);
- $rdata = substr($rdata, 4);
- $item["busystatus"] = $data["busystatus"];
- }
- // ARO_ATTACHMENT: 0x0040
- if(($bitmask &(1 << 6))) {
- // no data: RESERVED
- $rdata = substr($rdata, 4);
- }
- // ARO_SUBTYPE: 0x0080
- // Look for field: SubType (4b). Determines whether it is an allday event.
- if(($bitmask &(1 << 7))) {
- $data = unpack("Vallday", $rdata);
- $rdata = substr($rdata, 4);
- $item["alldayevent"] = $data["allday"];
- }
- // ARO_APPTCOLOR: 0x0100
- // Look for field: AppointmentColor (4b)
- if(($bitmask &(1 << 8))) {
- $data = unpack("Vlabel", $rdata);
- $rdata = substr($rdata, 4);
- $item["label"] = $data["label"];
- }
- // ARO_EXCEPTIONAL_BODY: 0x0200
- if(($bitmask &(1 << 9))) {
- // Notes or Attachments modified: no data here (only in attachment)
- }
- array_push($exc_changed_details, $item);
- }
- /**
- * We now have $exc_changed, $exc_base_dates and $exc_changed_details
- * We will ignore $exc_changed, as this information is available in $exc_changed_details
- * also. If an item is in $exc_base_dates and NOT in $exc_changed_details, then the item
- * has been deleted.
- */
- // Find deleted occurrences
- $deleted_occurences = array();
- foreach($exc_base_dates as $base_date) {
- $found = false;
- foreach($exc_changed_details as $details) {
- if($details["basedate"] == $base_date) {
- $found = true;
- break;
- }
- }
- if(! $found) {
- // item was not in exc_changed_details, so it must be deleted
- $deleted_occurences[] = $base_date;
- }
- }
- $ret["deleted_occurences"] = $deleted_occurences;
- $ret["changed_occurences"] = $exc_changed_details;
- // enough data for normal exception (no extended data)
- if (strlen($rdata) < 16) {
- return $ret;
- }
- $data = unpack("Vreservedsize", $rdata);
- $rdata = substr($rdata, 4 + $data["reservedsize"]);
- for($i=0;$i<$nexceptions;$i++)
- {
- // subject and location in ucs-2 to utf-8
- if ($writerversion >= 0x3009) {
- $data = unpack("Vsize/Vvalue", $rdata); // size includes sizeof(value)==4
- $rdata = substr($rdata, 4 + $data["size"]);
- }
- $data = unpack("Vreservedsize", $rdata);
- $rdata = substr($rdata, 4 + $data["reservedsize"]);
- // ARO_SUBJECT(0x01) | ARO_LOCATION(0x10)
- if ($exc_changed_details[$i]["bitmask"] & 0x11) {
- $data = unpack("Vstart/Vend/Vorig", $rdata);
- $rdata = substr($rdata, 4 * 3);
- $exc_changed_details[$i]["ex_start_datetime"] = $data["start"];
- $exc_changed_details[$i]["ex_end_datetime"] = $data["end"];
- $exc_changed_details[$i]["ex_orig_date"] = $data["orig"];
- }
- // ARO_SUBJECT
- if ($exc_changed_details[$i]["bitmask"] & 0x01) {
- // decode ucs2 string to utf-8
- $data = unpack("vlength", $rdata);
- $rdata = substr($rdata, 2);
- $length = $data["length"];
- $data = substr($rdata, 0, $length * 2);
- $rdata = substr($rdata, $length * 2);
- $subject = iconv("UCS-2LE", "UTF-8", $data);
- // replace subject with unicode subject
- $exc_changed_details[$i]["subject"] = $subject;
- }
- // ARO_LOCATION
- if ($exc_changed_details[$i]["bitmask"] & 0x10) {
- // decode ucs2 string to utf-8
- $data = unpack("vlength", $rdata);
- $rdata = substr($rdata, 2);
- $length = $data["length"];
- $data = substr($rdata, 0, $length * 2);
- $rdata = substr($rdata, $length * 2);
- $location = iconv("UCS-2LE", "UTF-8", $data);
- // replace subject with unicode subject
- $exc_changed_details[$i]["location"] = $location;
- }
- // ARO_SUBJECT(0x01) | ARO_LOCATION(0x10)
- if ($exc_changed_details[$i]["bitmask"] & 0x11) {
- $data = unpack("Vreservedsize", $rdata);
- $rdata = substr($rdata, 4 + $data["reservedsize"]);
- }
- }
- // update with extended data
- $ret["changed_occurences"] = $exc_changed_details;
- return $ret;
- }
- /**
- * Saves the recurrence data to the recurrence property
- * @param array $properties the recurrence data.
- * @return string binary string
- */
- function saveRecurrence()
- {
- // Only save if a message was passed
- if(!isset($this->message))
- return;
- // Abort if no recurrence was set
- if(!isset($this->recur["type"]) && !isset($this->recur["subtype"])) {
- return;
- }
- if(!isset($this->recur["start"]) && !isset($this->recur["end"])) {
- return;
- }
- if(!isset($this->recur["startocc"]) && !isset($this->recur["endocc"])) {
- return;
- }
- $rdata = pack("CCCCCCV", 0x04, 0x30, 0x04, 0x30, (int) $this->recur["type"], 0x20, (int) $this->recur["subtype"]);
- $weekstart = 1; //monday
- $forwardcount = 0;
- $restocc = 0;
- $dayofweek = (int) gmdate("w", (int) $this->recur["start"]); //0 (for Sunday) through 6 (for Saturday)
- $term = (int) $this->recur["type"];
- switch($term)
- {
- case 0x0A:
- // Daily
- if(!isset($this->recur["everyn"])) {
- return;
- }
- if($this->recur["subtype"] == 1) {
- // Daily every workday
- $rdata .= pack("VVVV", (6 * 24 * 60), 1, 0, 0x3E);
- } else {
- // Daily every N days (everyN in minutes)
- $everyn = ((int) $this->recur["everyn"]) / 1440;
- // Calc first occ
- $firstocc = $this->unixDataToRecurData($this->recur["start"]) % ((int) $this->recur["everyn"]);
- $rdata .= pack("VVV", $firstocc, (int) $this->recur["everyn"], $this->recur["regen"] ? 1 : 0);
- }
- break;
- case 0x0B:
- // Weekly
- if(!isset($this->recur["everyn"])) {
- return;
- }
- if (!$this->recur["regen"] && !isset($this->recur["weekdays"])) {
- return;
- }
- // No need to calculate startdate if sliding flag was set.
- if (!$this->recur['regen']) {
- // Calculate start date of recurrence
- // Find the first day that matches one of the weekdays selected
- $daycount = 0;
- $dayskip = -1;
- for($j = 0; $j < 7; $j++) {
- if(((int) $this->recur["weekdays"]) & (1<<( ($dayofweek+$j)%7)) ) {
- if($dayskip == -1)
- $dayskip = $j;
- $daycount++;
- }
- }
- // $dayskip is the number of days to skip from the startdate until the first occurrence
- // $daycount is the number of days per week that an occurrence occurs
- $weekskip = 0;
- if(($dayofweek < $weekstart && $dayskip > 0) || ($dayofweek+$dayskip) > 6)
- $weekskip = 1;
- // Check if the recurrence ends after a number of occurences, in that case we must calculate the
- // remaining occurences based on the start of the recurrence.
- if (((int) $this->recur["term"]) == 0x22) {
- // $weekskip is the amount of weeks to skip from the startdate before the first occurence
- // $forwardcount is the maximum number of week occurrences we can go ahead after the first occurrence that
- // is still inside the recurrence. We subtract one to make sure that the last week is never forwarded over
- // (eg when numoccur = 2, and daycount = 1)
- $forwardcount = floor( (int) ($this->recur["numoccur"] -1 ) / $daycount);
- // $restocc is the number of occurrences left after $forwardcount whole weeks of occurrences, minus one
- // for the occurrence on the first day
- $restocc = ((int) $this->recur["numoccur"]) - ($forwardcount*$daycount) - 1;
- // $forwardcount is now the number of weeks we can go forward and still be inside the recurrence
- $forwardcount *= (int) $this->recur["everyn"];
- }
- // The real start is start + dayskip + weekskip-1 (since dayskip will already bring us into the next week)
- $this->recur["start"] = ((int) $this->recur["start"]) + ($dayskip * 24*60*60)+ ($weekskip *(((int) $this->recur["everyn"]) - 1) * 7 * 24*60*60);
- }
- // Calc first occ
- $firstocc = ($this->unixDataToRecurData($this->recur["start"]) ) % ( ((int) $this->recur["everyn"]) * 7 * 24 * 60);
- $firstocc -= (((int) gmdate("w", (int) $this->recur["start"])) - 1) * 24 * 60;
- if ($this->recur["regen"])
- $rdata .= pack("VVV", $firstocc, (int) $this->recur["everyn"], 1);
- else
- $rdata .= pack("VVVV", $firstocc, (int) $this->recur["everyn"], 0, (int) $this->recur["weekdays"]);
- break;
- case 0x0C:
- // Monthly
- case 0x0D:
- // Yearly
- if(!isset($this->recur["everyn"])) {
- return;
- }
- if($term == 0x0D /*yearly*/ && !isset($this->recur["month"])) {
- return;
- }
- if($term == 0x0C /*monthly*/) {
- $everyn = (int) $this->recur["everyn"];
- }else {
- $everyn = $this->recur["regen"] ? ((int) $this->recur["everyn"]) * 12 : 12;
- }
- // Get montday/month/year of original start
- $curmonthday = gmdate("j", (int) $this->recur["start"] );
- $curyear = gmdate("Y", (int) $this->recur["start"] );
- $curmonth = gmdate("n", (int) $this->recur["start"] );
- // Check if the recurrence ends after a number of occurences, in that case we must calculate the
- // remaining occurences based on the start of the recurrence.
- if (((int) $this->recur["term"]) == 0x22) {
- // $forwardcount is the number of occurrences we can skip and still be inside the recurrence range (minus
- // one to make sure there are always at least one occurrence left)
- $forwardcount = ((((int) $this->recur["numoccur"])-1) * $everyn );
- }
- // Get month for yearly on D'th day of month M
- if($term == 0x0D /*yearly*/) {
- $selmonth = floor(((int) $this->recur["month"]) / (24 * 60 *29)) + 1; // 1=jan, 2=feb, eg
- }
- switch((int) $this->recur["subtype"])
- {
- // on D day of every M month
- case 2:
- if(!isset($this->recur["monthday"])) {
- return;
- }
- // Recalc startdate
- // Set on the right begin day
- // Go the beginning of the month
- $this->recur["start"] -= ($curmonthday-1) * 24*60*60;
- // Go the the correct month day
- $this->recur["start"] += (((int) $this->recur["monthday"])-1) * 24*60*60;
- // If the previous calculation gave us a start date *before* the original start date, then we need to skip to the next occurrence
- if ( ($term == 0x0C /*monthly*/ && ((int) $this->recur["monthday"]) < $curmonthday) ||
- ($term == 0x0D /*yearly*/ &&( $selmonth < $curmonth || ($selmonth == $curmonth && ((int) $this->recur["monthday"]) < $curmonthday)) ))
- {
- if($term == 0x0D /*yearly*/)
- $count = ($everyn - ($curmonth - $selmonth)); // Yearly, go to next occurrence in 'everyn' months minus difference in first occurence and original date
- else
- $count = $everyn; // Monthly, go to next occurrence in 'everyn' months
- // Forward by $count months. This is done by getting the number of days in that month and forwarding that many days
- for($i=0; $i < $count; $i++) {
- $this->recur["start"] += $this->getMonthInSeconds($curyear, $curmonth);
- if($curmonth == 12) {
- $curyear++;
- $curmonth = 0;
- }
- $curmonth++;
- }
- }
- // "start" is now pointing to the first occurrence, except that it will overshoot if the
- // month in which it occurs has less days than specified as the day of the month. So 31st
- // of each month will overshoot in february (29 days). We compensate for that by checking
- // if the day of the month we got is wrong, and then back up to the last day of the previous
- // month.
- if(((int) $this->recur["monthday"]) >=28 && ((int) $this->recur["monthday"]) <= 31 &&
- gmdate("j", ((int) $this->recur["start"])) < ((int) $this->recur["monthday"]))
- {
- $this->recur["start"] -= gmdate("j", ((int) $this->recur["start"])) * 24 * 60 *60;
- }
- // "start" is now the first occurrence
- if($term == 0x0C /*monthly*/) {
- // Calc first occ
- $monthIndex = ((((12%$everyn) * ((((int) gmdate("Y", $this->recur["start"])) - 1601)%$everyn)) % $everyn) + (((int) gmdate("n", $this->recur["start"])) - 1))%$everyn;
- $firstocc = 0;
- for($i=0; $i < $monthIndex; $i++) {
- $firstocc+= $this->getMonthInSeconds(1601 + floor($i/12), ($i%12)+1) / 60;
- }
- $rdata .= pack("VVVV", $firstocc, $everyn, $this->recur["regen"], (int) $this->recur["monthday"]);
- } else{
- // Calc first occ
- $firstocc = 0;
- $monthIndex = (int) gmdate("n", $this->recur["start"]);
- for($i=1; $i < $monthIndex; $i++) {
- $firstocc+= $this->getMonthInSeconds(1601 + floor($i/12), $i) / 60;
- }
- $rdata .= pack("VVVV", $firstocc, $everyn, $this->recur["regen"], (int) $this->recur["monthday"]);
- }
- break;
- case 3:
- // monthly: on Nth weekday of every M month
- // yearly: on Nth weekday of M month
- if(!isset($this->recur["weekdays"]) && !isset($this->recur["nday"])) {
- return;
- }
- $weekdays = (int) $this->recur["weekdays"];
- $nday = (int) $this->recur["nday"];
- // Calc startdate
- $monthbegindow = (int) $this->recur["start"];
- if($nday == 5) {
- // Set date on the last day of the last month
- $monthbegindow += (gmdate("t", $monthbegindow ) - gmdate("j", $monthbegindow )) * 24 * 60 * 60;
- }else {
- // Set on the first day of the month
- $monthbegindow -= ((gmdate("j", $monthbegindow )-1) * 24 * 60 * 60);
- }
- if($term == 0x0D /*yearly*/) {
- // Set on right month
- if($selmonth < $curmonth)
- $tmp = 12 - $curmonth + $selmonth;
- else
- $tmp = ($selmonth - $curmonth);
- for($i=0; $i < $tmp; $i++) {
- $monthbegindow += $this->getMonthInSeconds($curyear, $curmonth);
- if($curmonth == 12) {
- $curyear++;
- $curmonth = 0;
- }
- $curmonth++;
- }
- }else {
- // Check or you exist in the right month
- for($i = 0; $i < 7; $i++) {
- if($nday == 5 && (1<<( (gmdate("w", $monthbegindow)-$i)%7) ) & $weekdays) {
- $day = gmdate("j", $monthbegindow) - $i;
- break;
- }else if($nday != 5 && (1<<( (gmdate("w", $monthbegindow )+$i)%7) ) & $weekdays) {
- $day = (($nday-1)*7) + ($i+1);
- break;
- }
- }
- // Goto the next X month
- if(isset($day) && ($day < gmdate("j", (int) $this->recur["start"])) ) {
- if($nday == 5) {
- $monthbegindow += 24 * 60 * 60;
- if($curmonth == 12) {
- $curyear++;
- $curmonth = 0;
- }
- $curmonth++;
- }
- for($i=0; $i < $everyn; $i++) {
- $monthbegindow += $this->getMonthInSeconds($curyear, $curmonth);
- if($curmonth == 12) {
- $curyear++;
- $curmonth = 0;
- }
- $curmonth++;
- }
- if($nday == 5) {
- $monthbegindow -= 24 * 60 * 60;
- }
- }
- }
- //FIXME: weekstart?
- $day = 0;
- // Set start on the right day
- for($i = 0; $i < 7; $i++) {
- if($nday == 5 && (1<<( (gmdate("w", $monthbegindow )-$i)%7) ) & $weekdays) {
- $day = $i;
- break;
- }else if($nday != 5 && (1<<( (gmdate("w", $monthbegindow )+$i)%7) ) & $weekdays) {
- $day = ($nday - 1) * 7 + ($i+1);
- break;
- }
- }
- if($nday == 5)
- $monthbegindow -= $day * 24 * 60 *60;
- else
- $monthbegindow += ($day-1) * 24 * 60 *60;
- $firstocc = 0;
- if($term == 0x0C /*monthly*/) {
- // Calc first occ
- $monthIndex = ((((12%$everyn) * (((int) gmdate("Y", $this->recur["start"]) - 1601)%$everyn)) % $everyn) + (((int) gmdate("n", $this->recur["start"])) - 1))%$everyn;
- for($i=0; $i < $monthIndex; $i++) {
- $firstocc+= $this->getMonthInSeconds(1601 + floor($i/12), ($i%12)+1) / 60;
- }
- $rdata .= pack("VVVVV", $firstocc, $everyn, 0, $weekdays, $nday);
- } else {
- // Calc first occ
- $monthIndex = (int) gmdate("n", $this->recur["start"]);
- for($i=1; $i < $monthIndex; $i++) {
- $firstocc+= $this->getMonthInSeconds(1601 + floor($i/12), $i) / 60;
- }
- $rdata .= pack("VVVVV", $firstocc, $everyn, 0, $weekdays, $nday);
- }
- break;
- }
- break;
- }
- if(!isset($this->recur["term"])) {
- return;
- }
- // Terminate
- $term = (int) $this->recur["term"];
- $rdata .= pack("CCCC", $term, 0x20, 0x00, 0x00);
- switch($term)
- {
- // After the given enddate
- case 0x21:
- $rdata .= pack("V", 10);
- break;
- // After a number of times
- case 0x22:
- if(!isset($this->recur["numoccur"])) {
- return;
- }
- $rdata .= pack("V", (int) $this->recur["numoccur"]);
- break;
- // Never ends
- case 0x23:
- $rdata .= pack("V", 0);
- break;
- }
- // Strange little thing for the recurrence type "every workday"
- if(((int) $this->recur["type"]) == 0x0B && ((int) $this->recur["subtype"]) == 1) {
- $rdata .= pack("V", 1);
- } else { // Other recurrences
- $rdata .= pack("V", 0);
- }
- // Exception data
- // Get all exceptions
- $deleted_items = $this->recur["deleted_occurences"];
- $changed_items = $this->recur["changed_occurences"];
- // Merge deleted and changed items into one list
- $items = $deleted_items;
- foreach($changed_items as $changed_item)
- array_push($items, $changed_item["basedate"]);
- sort($items);
- // Add the merged list in to the rdata
- $rdata .= pack("V", count($items));
- foreach($items as $item)
- $rdata .= pack("V", $this->unixDataToRecurData($item));
- // Loop through the changed exceptions (not deleted)
- $rdata .= pack("V", count($changed_items));
- $items = array();
- foreach($changed_items as $changed_item)
- {
- $items[] = $this->dayStartOf($changed_item["start"]);
- }
- sort($items);
- // Add the changed items list int the rdata
- foreach($items as $item)
- $rdata .= pack("V", $this->unixDataToRecurData($item));
- // Set start date
- $rdata .= pack("V", $this->unixDataToRecurData((int) $this->recur["start"]));
- // Set enddate
- switch($term)
- {
- // After the given enddate
- case 0x21:
- $rdata .= pack("V", $this->unixDataToRecurData((int) $this->recur["end"]));
- break;
- // After a number of times
- case 0x22:
- // @todo: calculate enddate with intval($this->recur["startocc"]) + intval($this->recur["duration"]) > 24 hour
- $occenddate = (int) $this->recur["start"];
- switch((int) $this->recur["type"]) {
- case 0x0A: //daily
- if($this->recur["subtype"] == 1) {
- // Daily every workday
- $restocc = (int) $this->recur["numoccur"];
- // Get starting weekday
- $nowtime = $this->gmtime($occenddate);
- $j = $nowtime["tm_wday"];
- while(1)
- {
- if(($j%7) > 0 && ($j%7)<6 ) {
- $restocc--;
- }
- $j++;
- if($restocc <= 0)
- break;
- $occenddate += 24*60*60;
- }
- } else {
- // -1 because the first day already counts (from 1-1-1980 to 1-1-1980 is 1 occurrence)
- $occenddate += (((int) $this->recur["everyn"]) * 60 * (((int) $this->recur["numoccur"]-1)));
- }
- break;
- case 0x0B: //weekly
- // Needed values
- // $forwardcount - number of weeks we can skip forward
- // $restocc - number of remaning occurrences after the week skip
- // Add the weeks till the last item
- $occenddate+=($forwardcount*7*24*60*60);
- $dayofweek = gmdate("w", $occenddate);
- // Loop through the last occurrences until we have had them all
- for($j = 1; $restocc>0; $j++)
- {
- // Jump to the next week (which may be N weeks away) when going over the week boundary
- if((($dayofweek+$j)%7) == $weekstart)
- $occenddate += (((int) $this->recur["everyn"])-1) * 7 * 24*60*60;
- // If this is a matching day, once less occurrence to process
- if(((int) $this->recur["weekdays"]) & (1<<(($dayofweek+$j)%7)) ) {
- $restocc--;
- }
- // Next day
- $occenddate += 24*60*60;
- }
- break;
- case 0x0C: //monthly
- case 0x0D: //yearly
- $curyear = gmdate("Y", (int) $this->recur["start"] );
- $curmonth = gmdate("n", (int) $this->recur["start"] );
- // $forwardcount = months
- switch((int) $this->recur["subtype"])
- {
- case 2: // on D day of every M month
- while($forwardcount > 0)
- {
- $occenddate += $this->getMonthInSeconds($curyear, $curmonth);
- if($curmonth >=12) {
- $curmonth = 1;
- $curyear++;
- } else {
- $curmonth++;
- }
- $forwardcount--;
- }
- // compensation between 28 and 31
- if(((int) $this->recur["monthday"]) >=28 && ((int) $this->recur["monthday"]) <= 31 &&
- gmdate("j", $occenddate) < ((int) $this->recur["monthday"]))
- {
- if(gmdate("j", $occenddate) < 28)
- $occenddate -= gmdate("j", $occenddate) * 24 * 60 *60;
- else
- $occenddate += (gmdate("t", $occenddate) - gmdate("j", $occenddate)) * 24 * 60 *60;
- }
- break;
- case 3: // on Nth weekday of every M month
- $nday = (int) $this->recur["nday"]; //1 tot 5
- $weekdays = (int) $this->recur["weekdays"];
- while($forwardcount > 0)
- {
- $occenddate += $this->getMonthInSeconds($curyear, $curmonth);
- if($curmonth >=12) {
- $curmonth = 1;
- $curyear++;
- } else {
- $curmonth++;
- }
- $forwardcount--;
- }
- if($nday == 5) {
- // Set date on the last day of the last month
- $occenddate += (gmdate("t", $occenddate ) - gmdate("j", $occenddate )) * 24 * 60 * 60;
- }else {
- // Set date on the first day of the last month
- $occenddate -= (gmdate("j", $occenddate )-1) * 24 * 60 * 60;
- }
- for($i = 0; $i < 7; $i++) {
- if( $nday == 5 && (1<<( (gmdate("w", $occenddate)-$i)%7) ) & $weekdays) {
- $occenddate -= $i * 24 * 60 * 60;
- break;
- }else if($nday != 5 && (1<<( (gmdate("w", $occenddate)+$i)%7) ) & $weekdays) {
- $occenddate += ($i + (($nday-1) *7)) * 24 * 60 * 60;
- break;
- }
- }
- break; //case 3:
- }
- break;
- }
- if (defined("PHP_INT_MAX") && $occenddate > PHP_INT_MAX)
- $occenddate = PHP_INT_MAX;
- $this->recur["end"] = $occenddate;
- $rdata .= pack("V", $this->unixDataToRecurData((int) $this->recur["end"]) );
- break;
- // Never ends
- case 0x23:
- default:
- $this->recur["end"] = 0x7fffffff; // max date -> 2038
- $rdata .= pack("V", 0x5AE980DF);
- break;
- }
- // UTC date
- $utcstart = $this->toGMT($this->tz, (int) $this->recur["start"]);
- $utcend = $this->toGMT($this->tz, (int) $this->recur["end"]);
- //utc date+time
- $utcfirstoccstartdatetime = (isset($this->recur["startocc"])) ? $utcstart + (((int) $this->recur["startocc"])*60) : $utcstart;
- $utcfirstoccenddatetime = (isset($this->recur["endocc"])) ? $utcstart + (((int) $this->recur["endocc"]) * 60) : $utcstart;
- // update reminder time
- mapi_setprops($this->message, Array($this->proptags["reminder_time"] => $utcfirstoccstartdatetime ));
- // update first occurrence date
- mapi_setprops($this->message, Array($this->proptags["startdate"] => $utcfirstoccstartdatetime ));
- mapi_setprops($this->message, Array($this->proptags["duedate"] => $utcfirstoccenddatetime ));
- mapi_setprops($this->message, Array($this->proptags["commonstart"] => $utcfirstoccstartdatetime ));
- mapi_setprops($this->message, Array($this->proptags["commonend"] => $utcfirstoccenddatetime ));
- // Set Outlook properties, if it is an appointment
- if (isset($this->recur["message_class"]) && $this->recur["message_class"] == "IPM.Appointment") {
- // update real begin and real end date
- mapi_setprops($this->message, Array($this->proptags["startdate_recurring"] => $utcstart));
- mapi_setprops($this->message, Array($this->proptags["enddate_recurring"] => $utcend));
- // recurrencetype
- // Strange enough is the property recurrencetype, (type-0x9) and not the CDO recurrencetype
- mapi_setprops($this->message, Array($this->proptags["recurrencetype"] => ((int) $this->recur["type"]) - 0x9));
- // set named prop 'side_effects' to 369, needed for Outlook to ask for single or total recurrence when deleting
- mapi_setprops($this->message, Array($this->proptags["side_effects"] => 369));
- } else {
- mapi_setprops($this->message, Array($this->proptags["side_effects"] => 3441));
- }
- // FlagDueBy is datetime of the first reminder occurrence. Outlook gives on this time a reminder popup dialog
- // Any change of the recurrence (including changing and deleting exceptions) causes the flagdueby to be reset
- // to the 'next' occurrence; this makes sure that deleting the next ocurrence will correctly set the reminder to
- // the occurrence after that. The 'next' occurrence is defined as being the first occurrence that starts at moment X (server time)
- // with the reminder flag set.
- $reminderprops = mapi_getprops($this->message, array($this->proptags["reminder_minutes"]) );
- if(isset($reminderprops[$this->proptags["reminder_minutes"]]) ) {
- $occ = false;
- $occurrences = $this->getItems(time(), 0x7ff00000, 3, true);
- for($i = 0, $len = count($occurrences) ; $i < $len; $i++) {
- // This will actually also give us appointments that have already started, but not yet ended. Since we want the next
- // reminder that occurs after time(), we may have to skip the first few entries. We get 3 entries since that is the maximum
- // number that would be needed (assuming reminder for item X cannot be before the previous occurrence starts). Worst case:
- // time() is currently after start but before end of item, but reminder of next item has already passed (reminder for next item
- // can be DURING the previous item, eg daily allday events). In that case, the first and second items must be skipped.
- if(($occurrences[$i][$this->proptags["startdate"]] - $reminderprops[$this->proptags["reminder_minutes"]] * 60) > time()) {
- $occ = $occurrences[$i];
- break;
- }
- }
- if($occ) {
- mapi_setprops($this->message, Array($this->proptags["flagdueby"] => $occ[$this->proptags["startdate"]] - ($reminderprops[$this->proptags["reminder_minutes"]] * 60) ));
- } else {
- // Last reminder passed, no reminders any more.
- mapi_setprops($this->message, Array($this->proptags["reminder"] => false, $this->proptags["flagdueby"] => 0x7ff00000));
- }
- }
- // Default data
- // Second item (0x08) indicates the Outlook version (see documentation at the bottom of this file for more information)
- $rdata .= pack("VCCCC", 0x00003006, 0x08, 0x30, 0x00, 0x00);
- if(isset($this->recur["startocc"]) && isset($this->recur["endocc"])) {
- // Set start and endtime in minutes
- $rdata .= pack("VV", (int) $this->recur["startocc"], (int) $this->recur["endocc"]);
- }
- // Detailed exception data
- $changed_items = $this->recur["changed_occurences"];
- $rdata .= pack("v", count($changed_items));
- foreach($changed_items as $changed_item)
- {
- // Set start and end time of exception
- $rdata .= pack("V", $this->unixDataToRecurData($changed_item["start"]));
- $rdata .= pack("V", $this->unixDataToRecurData($changed_item["end"]));
- $rdata .= pack("V", $this->unixDataToRecurData($changed_item["basedate"]));
- //Bitmask
- $bitmask = 0;
- // Check for changed strings
- if(isset($changed_item["subject"])) {
- $bitmask |= 1 << 0;
- }
- if(isset($changed_item["remind_before"])) {
- $bitmask |= 1 << 2;
- }
- if(isset($changed_item["reminder_set"])) {
- $bitmask |= 1 << 3;
- }
- if(isset($changed_item["location"])) {
- $bitmask |= 1 << 4;
- }
- if(isset($changed_item["busystatus"])) {
- $bitmask |= 1 << 5;
- }
- if(isset($changed_item["alldayevent"])) {
- $bitmask |= 1 << 7;
- }
- if(isset($changed_item["label"])) {
- $bitmask |= 1 << 8;
- }
- $rdata .= pack("v", $bitmask);
- // Set "subject"
- if(isset($changed_item["subject"])) {
- // convert utf-8 to non-unicode blob string (us-ascii?)
- $subject = iconv("UTF-8", "windows-1252//TRANSLIT", $changed_item["subject"]);
- $length = strlen($subject);
- $rdata .= pack("vv", $length + 1, $length);
- $rdata .= pack("a".$length, $subject);
- }
- if(isset($changed_item["remind_before"])) {
- $rdata .= pack("V", $changed_item["remind_before"]);
- }
- if(isset($changed_item["reminder_set"])) {
- $rdata .= pack("V", $changed_item["reminder_set"]);
- }
- if(isset($changed_item["location"])) {
- $location = iconv("UTF-8", "windows-1252//TRANSLIT", $changed_item["location"]);
- $length = strlen($location);
- $rdata .= pack("vv", $length + 1, $length);
- $rdata .= pack("a".$length, $location);
- }
- if(isset($changed_item["busystatus"])) {
- $rdata .= pack("V", $changed_item["busystatus"]);
- }
- if(isset($changed_item["alldayevent"])) {
- $rdata .= pack("V", $changed_item["alldayevent"]);
- }
- if(isset($changed_item["label"])) {
- $rdata .= pack("V", $changed_item["label"]);
- }
- }
- $rdata .= pack("V", 0);
- // write extended data
- foreach($changed_items as $changed_item)
- {
- $rdata .= pack("V", 0);
- if(isset($changed_item["subject"]) || isset($changed_item["location"])) {
- $rdata .= pack("V", $this->unixDataToRecurData($changed_item["start"]));
- $rdata .= pack("V", $this->unixDataToRecurData($changed_item["end"]));
- $rdata .= pack("V", $this->unixDataToRecurData($changed_item["basedate"]));
- }
- if(isset($changed_item["subject"])) {
- $subject = iconv("UTF-8", "UCS-2LE", $changed_item["subject"]);
- $length = iconv_strlen($subject, "UCS-2LE");
- $rdata .= pack("v", $length);
- $rdata .= pack("a".$length*2, $subject);
- }
- if(isset($changed_item["location"])) {
- $location = iconv("UTF-8", "UCS-2LE", $changed_item["location"]);
- $length = iconv_strlen($location, "UCS-2LE");
- $rdata .= pack("v", $length);
- $rdata .= pack("a".$length*2, $location);
- }
- if(isset($changed_item["subject"]) || isset($changed_item["location"])) {
- $rdata .= pack("V", 0);
- }
- }
- $rdata .= pack("V", 0);
- // Set props
- mapi_setprops($this->message, Array($this->proptags["recurring_data"] => $rdata, $this->proptags["recurring"] => true));
- if(isset($this->tz) && $this->tz){
- $timezone = "GMT";
- if ($this->tz["timezone"]!=0){
- // Create user readable timezone information
- $timezone = sprintf("(GMT %s%02d:%02d)", (-$this->tz["timezone"]>0 ? "+" : "-"),
- abs($this->tz["timezone"]/60),
- abs($this->tz["timezone"]%60));
- }
- mapi_setprops($this->message, Array($this->proptags["timezone_data"] => $this->getTimezoneData($this->tz),
- $this->proptags["timezone"] => $timezone));
- }
- }
- /**
- * Function which converts a recurrence date timestamp to an unix date timestamp.
- * @author Steve Hardy
- * @param Int $rdate the date which will be converted
- * @return Int the converted date
- */
- function recurDataToUnixData($rdate)
- {
- return ($rdate - 194074560) * 60 ;
- }
- /**
- * Function which converts an unix date timestamp to recurrence date timestamp.
- * @author Johnny Biemans
- * @param Date $date the date which will be converted
- * @return Int the converted date in minutes
- */
- function unixDataToRecurData($date)
- {
- return ($date / 60) + 194074560;
- }
- /**
- * gmtime() doesn't exist in standard PHP, so we have to implement it ourselves
- * @author Steve Hardy
- */
- function GetTZOffset($ts)
- {
- $Offset = date("O", $ts);
- $Parity = $Offset < 0 ? -1 : 1;
- $Offset = $Parity * $Offset;
- $Offset = ($Offset - ($Offset % 100)) / 100 * 60 + $Offset % 100;
- return $Parity * $Offset;
- }
- /**
- * gmtime() doesn't exist in standard PHP, so we have to implement it ourselves
- * @author Steve Hardy
- * @param Date $time
- * @return Date GMT Time
- */
- function gmtime($time)
- {
- $TZOffset = $this->GetTZOffset($time);
- $t_time = $time - $TZOffset * 60; #Counter adjust for localtime()
- $t_arr = localtime($t_time, 1);
- return $t_arr;
- }
- function isLeapYear($year) {
- return ( $year % 4 == 0 && ($year % 100 != 0 || $year % 400 == 0) );
- }
- function getMonthInSeconds($year, $month)
- {
- if( in_array($month, array(1,3,5,7,8,10,12) ) ) {
- $day = 31;
- } else if( in_array($month, array(4,6,9,11) ) ) {
- $day = 30;
- } else {
- $day = 28;
- if( $this->isLeapYear($year) == 1 )
- $day++;
- }
- return $day * 24 * 60 * 60;
- }
- /**
- * Function to get a date by Year Nr, Month Nr, Week Nr, Day Nr, and hour
- * @param int $year
- * @param int $month
- * @param int $week
- * @param int $day
- * @param int $hour
- * @return returns the timestamp of the given date, timezone-independant
- */
- function getDateByYearMonthWeekDayHour($year, $month, $week, $day, $hour)
- {
- // get first day of month
- $date = gmmktime(0,0,0,$month,0,$year + 1900);
- // get wday info
- $gmdate = $this->gmtime($date);
- $date -= $gmdate["tm_wday"] * 24 * 60 * 60; // back up to start of week
- $date += $week * 7 * 24 * 60 * 60; // go to correct week nr
- $date += $day * 24 * 60 * 60;
- $date += $hour * 60 * 60;
- $gmdate = $this->gmtime($date);
- // if we are in the next month, then back up a week, because week '5' means
- // 'last week of month'
- if($gmdate["tm_mon"]+1 != $month)
- $date -= 7 * 24 * 60 * 60;
- return $date;
- }
- /**
- * getTimezone gives the timezone offset (in minutes) of the given
- * local date/time according to the given TZ info
- */
- function getTimezone($tz, $date)
- {
- // No timezone -> GMT (+0)
- if(!isset($tz["timezone"]))
- return 0;
- $dst = false;
- $gmdate = $this->gmtime($date);
- $dststart = $this->getDateByYearMonthWeekDayHour($gmdate["tm_year"], $tz["dststartmonth"], $tz["dststartweek"], 0, $tz["dststarthour"]);
- $dstend = $this->getDateByYearMonthWeekDayHour($gmdate["tm_year"], $tz["dstendmonth"], $tz["dstendweek"], 0, $tz["dstendhour"]);
- if($dststart <= $dstend) {
- // Northern hemisphere, eg DST is during Mar-Oct
- if($date > $dststart && $date < $dstend) {
- $dst = true;
- }
- } else {
- // Southern hemisphere, eg DST is during Oct-Mar
- if($date < $dstend || $date > $dststart) {
- $dst = true;
- }
- }
- if($dst) {
- return $tz["timezone"] + $tz["timezonedst"];
- } else {
- return $tz["timezone"];
- }
- }
- /**
- * getWeekNr() returns the week nr of the month (ie first week of february is 1)
- */
- function getWeekNr($date)
- {
- $gmdate = gmtime($date);
- $gmdate["tm_mday"] = 0;
- return strftime("%W", $date) - strftime("%W", gmmktime($gmdate)) + 1;
- }
- /**
- * parseTimezone parses the timezone as specified in named property 0x8233
- * in Outlook calendar messages. Returns the timezone in minutes negative
- * offset (GMT +2:00 -> -120)
- */
- function parseTimezone($data)
- {
- if(strlen($data) < 48)
- return;
- $tz = unpack("ltimezone/lunk/ltimezonedst/lunk/ldstendmonth/vdstendweek/vdstendhour/lunk/lunk/vunk/ldststartmonth/vdststartweek/vdststarthour/lunk/vunk", $data);
- return $tz;
- }
- function getTimezoneData($tz)
- {
- $data = pack("lllllvvllvlvvlv", $tz["timezone"], 0, $tz["timezonedst"], 0, $tz["dstendmonth"], $tz["dstendweek"], $tz["dstendhour"], 0, 0, 0, $tz["dststartmonth"], $tz["dststartweek"], $tz["dststarthour"], 0 ,0);
- return $data;
- }
- /**
- * createTimezone creates the timezone as specified in the named property 0x8233
- * see also parseTimezone()
- * $tz is an array with the timezone data
- */
- function createTimezone($tz)
- {
- $data = pack("lxxxxlxxxxlvvxxxxxxxxxxlvvxxxxxx",
- $tz["timezone"],
- array_key_exists("timezonedst",$tz)?$tz["timezonedst"]:0,
- array_key_exists("dstendmonth",$tz)?$tz["dstendmonth"]:0,
- array_key_exists("dstendweek",$tz)?$tz["dstendweek"]:0,
- array_key_exists("dstendhour",$tz)?$tz["dstendhour"]:0,
- array_key_exists("dststartmonth",$tz)?$tz["dststartmonth"]:0,
- array_key_exists("dststartweek",$tz)?$tz["dststartweek"]:0,
- array_key_exists("dststarthour",$tz)?$tz["dststarthour"]:0
- );
- return $data;
- }
- /**
- * toGMT returns a timestamp in GMT time for the time and timezone given
- */
- function toGMT($tz, $date) {
- if(!isset($tz['timezone']))
- return $date;
- $offset = $this->getTimezone($tz, $date);
- return $date + $offset * 60;
- }
- /**
- * fromGMT returns a timestamp in the local timezone given from the GMT time given
- */
- function fromGMT($tz, $date) {
- $offset = $this->getTimezone($tz, $date);
- return $date - $offset * 60;
- }
- /**
- * Function to get timestamp of the beginning of the day of the timestamp given
- * @param date $date
- * @return date timestamp referring to same day but at 00:00:00
- */
- function dayStartOf($date)
- {
- $time1 = $this->gmtime($date);
- return gmmktime(0, 0, 0, $time1["tm_mon"] + 1, $time1["tm_mday"], $time1["tm_year"] + 1900);
- }
- /**
- * Function to get timestamp of the beginning of the month of the timestamp given
- * @param date $date
- * @return date Timestamp referring to same month but on the first day, and at 00:00:00
- */
- function monthStartOf($date)
- {
- $time1 = $this->gmtime($date);
- return gmmktime(0, 0, 0, $time1["tm_mon"] + 1, 1, $time1["tm_year"] + 1900);
- }
- /**
- * Function to get timestamp of the beginning of the year of the timestamp given
- * @param date $date
- * @return date Timestamp referring to the same year but on Jan 01, at 00:00:00
- */
- function yearStartOf($date)
- {
- $time1 = $this->gmtime($date);
- return gmmktime(0, 0, 0, 1, 1, $time1["tm_year"] + 1900);
- }
- /**
- * Function which returns the items in a given interval. This included expansion of the recurrence and
- * processing of exceptions (modified and deleted).
- *
- * @param string $entryid the entryid of the message
- * @param array $props the properties of the message
- * @param date $start start time of the interval (GMT)
- * @param date $end end time of the interval (GMT)
- */
- function getItems($start, $end, $limit = 0, $remindersonly = false)
- {
- $items = array();
- if(isset($this->recur)) {
- // Optimization: remindersonly and default reminder is off; since only exceptions with reminder set will match, just look which
- // exceptions are in range and have a reminder set
- if($remindersonly && (!isset($this->messageprops[$this->proptags["reminder"]]) || $this->messageprops[$this->proptags["reminder"]] == false)) {
- // Sort exceptions by start time
- uasort($this->recur["changed_occurences"], array($this, "sortExceptionStart"));
- // Loop through all changed exceptions
- foreach($this->recur["changed_occurences"] as $exception) {
- // Check reminder set
- if(!isset($exception["reminder"]) || $exception["reminder"] == false)
- continue;
- // Convert to GMT
- $occstart = $this->toGMT($this->tz, $exception["start"]); // seb changed $tz to $this->tz
- $occend = $this->toGMT($this->tz, $exception["end"]); // seb changed $tz to $this->tz
- // Check range criterium
- if($occstart > $end || $occend < $start)
- continue;
- // OK, add to items.
- array_push($items, $this->getExceptionProperties($exception));
- if($limit && (count($items) == $limit))
- break;
- }
- uasort($items, array($this, "sortStarttime"));
- return $items;
- }
- // From here on, the dates of the occurrences are calculated in local time, so the days we're looking
- // at are calculated from the local time dates of $start and $end
- if ($this->recur['regen'] && isset($this->action['datecompleted'])) {
- $daystart = $this->dayStartOf($this->action['datecompleted']);
- } else {
- $daystart = $this->dayStartOf($this->recur["start"]); // start on first day of occurrence
- }
- // Calculate the last day on which we want to be looking at a recurrence; this is either the end of the view
- // or the end of the recurrence, whichever comes first
- if($end > $this->toGMT($this->tz, $this->recur["end"])) {
- $rangeend = $this->toGMT($this->tz, $this->recur["end"]);
- } else {
- $rangeend = $end;
- }
- $dayend = $this->dayStartOf($this->fromGMT($this->tz, $rangeend));
- // Loop through the entire recurrence range of dates, and check for each occurrence whether it is in the view range.
- switch($this->recur["type"])
- {
- case 10:
- // Daily
- if($this->recur["everyn"] <= 0)
- $this->recur["everyn"] = 1440;
- if($this->recur["subtype"] == 0) {
- // Every Nth day
- for($now = $daystart; $now <= $dayend && ($limit == 0 || count($items) < $limit); $now += 60 * $this->recur["everyn"]) {
- $this->processOccurrenceItem($items, $start, $end, $now, $this->recur["startocc"], $this->recur["endocc"], $this->tz, $remindersonly);
- }
- } else {
- // Every workday
- for($now = $daystart; $now <= $dayend && ($limit == 0 || count($items) < $limit); $now += 60 * 1440)
- {
- $nowtime = $this->gmtime($now);
- if ($nowtime["tm_wday"] > 0 && $nowtime["tm_wday"] < 6) { // only add items in the given timespace
- $this->processOccurrenceItem($items, $start, $end, $now, $this->recur["startocc"], $this->recur["endocc"], $this->tz, $remindersonly);
- }
- }
- }
- break;
- case 11:
- // Weekly
- if($this->recur["everyn"] <= 0)
- $this->recur["everyn"] = 1;
- // If sliding flag is set then move to 'n' weeks
- if ($this->recur['regen']) $daystart += (60 * 60 * 24 * 7 * $this->recur["everyn"]);
- for($now = $daystart; $now <= $dayend && ($limit == 0 || count($items) < $limit); $now += (60 * 60 * 24 * 7 * $this->recur["everyn"]))
- {
- if ($this->recur['regen']) {
- $this->processOccurrenceItem($items, $start, $end, $now, $this->recur["startocc"], $this->recur["endocc"], $this->tz, $remindersonly);
- } else {
- // Loop through the whole following week to the first occurrence of the week, add each day that is specified
- for($wday = 0; $wday < 7; $wday++)
- {
- $daynow = $now + $wday * 60 * 60 * 24;
- //checks weather the next coming day in recurring pattern is less than or equal to end day of the recurring item
- if ($daynow <= $dayend){
- $nowtime = $this->gmtime($daynow); // Get the weekday of the current day
- if(($this->recur["weekdays"] &(1 << $nowtime["tm_wday"]))) { // Selected ?
- $this->processOccurrenceItem($items, $start, $end, $daynow, $this->recur["startocc"], $this->recur["endocc"], $this->tz, $remindersonly);
- }
- }
- }
- }
- }
- break;
- case 12:
- // Monthly
- if($this->recur["everyn"] <= 0)
- $this->recur["everyn"] = 1;
- // Loop through all months from start to end of occurrence, starting at beginning of first month
- for($now = $this->monthStartOf($daystart); $now <= $dayend && ($limit == 0 || count($items) < $limit); $now += $this->daysInMonth($now, $this->recur["everyn"]) * 24 * 60 * 60 )
- {
- if(isset($this->recur["monthday"]) &&($this->recur['monthday'] != "undefined") && !$this->recur['regen']) { // Day M of every N months
- $difference = 1;
- if ($this->daysInMonth($now, $this->recur["everyn"]) < $this->recur["monthday"]) {
- $difference = $this->recur["monthday"] - $this->daysInMonth($now, $this->recur["everyn"]) + 1;
- }
- $daynow = $now + (($this->recur["monthday"] - $difference) * 24 * 60 * 60);
- //checks weather the next coming day in recurrence pattern is less than or equal to end day of the recurring item
- if ($daynow <= $dayend){
- $this->processOccurrenceItem($items, $start, $end, $daynow, $this->recur["startocc"], $this->recur["endocc"], $this->tz, $remindersonly);
- }
- }
- else if(isset($this->recur["nday"]) && isset($this->recur["weekdays"])) { // Nth [weekday] of every N months
- // Sanitize input
- if($this->recur["weekdays"] == 0)
- $this->recur["weekdays"] = 1;
- // If nday is not set to the last day in the month
- if ($this->recur["nday"] < 5) {
- // keep the track of no. of time correct selection pattern(like 2nd weekday, 4th fiday, etc.)is matched
- $ndaycounter = 0;
- // Find matching weekday in this month
- for($day = 0; $day < $this->daysInMonth($now, 1); $day++)
- {
- $daynow = $now + $day * 60 * 60 * 24;
- $nowtime = $this->gmtime($daynow); // Get the weekday of the current day
- if($this->recur["weekdays"] & (1 << $nowtime["tm_wday"])) { // Selected ?
- $ndaycounter ++;
- }
- // check the selected pattern is same as asked Nth weekday,If so set the firstday
- if($this->recur["nday"] == $ndaycounter){
- $firstday = $day;
- break;
- }
- }
- // $firstday is the day of the month on which the asked pattern of nth weekday matches
- $daynow = $now + $firstday * 60 * 60 * 24;
- }else{
- // Find last day in the month ($now is the firstday of the month)
- $NumDaysInMonth = $this->daysInMonth($now, 1);
- $daynow = $now + (($NumDaysInMonth-1) * 24*60*60);
- $nowtime = $this->gmtime($daynow);
- while (($this->recur["weekdays"] & (1 << $nowtime["tm_wday"]))==0){
- $daynow -= 86400;
- $nowtime = $this->gmtime($daynow);
- }
- }
- /**
- * checks weather the next coming day in recurrence pattern is less than or equal to end day of the * recurring item.Also check weather the coming day in recurrence pattern is greater than or equal to start * of recurring pattern, so that appointment that fall under the recurrence range are only displayed.
- */
- if ($daynow <= $dayend && $daynow >= $daystart){
- $this->processOccurrenceItem($items, $start, $end, $daynow, $this->recur["startocc"], $this->recur["endocc"], $this->tz , $remindersonly);
- }
- } else if ($this->recur['regen']) {
- $next_month_start = $now + ($this->daysInMonth($now, 1) * 24 * 60 * 60);
- $now = $daystart +($this->daysInMonth($next_month_start, $this->recur['everyn']) * 24 * 60 * 60);
- if ($now <= $dayend) {
- $this->processOccurrenceItem($items, $daystart, $end, $now, $this->recur["startocc"], $this->recur["endocc"], $this->tz, $remindersonly);
- }
- }
- }
- break;
- case 13:
- // Yearly
- if($this->recur["everyn"] <= 0)
- $this->recur["everyn"] = 12;
- for($now = $this->yearStartOf($daystart); $now <= $dayend && ($limit == 0 || count($items) < $limit); $now += $this->daysInMonth($now, $this->recur["everyn"]) * 24 * 60 * 60 )
- {
- if(isset($this->recur["monthday"]) && !$this->recur['regen']) { // same as monthly, but in a specific month
- // recur["month"] is in minutes since the beginning of the year
- $month = $this->monthOfYear($this->recur["month"]); // $month is now month of year [0..11]
- $monthday = $this->recur["monthday"]; // $monthday is day of the month [1..31]
- $monthstart = $now + $this->daysInMonth($now, $month) * 24 * 60 * 60; // $monthstart is the timestamp of the beginning of the month
- if($monthday > $this->daysInMonth($monthstart, 1))
- $monthday = $this->daysInMonth($monthstart, 1); // Cap $monthday on month length (eg 28 feb instead of 29 feb)
- $daynow = $monthstart + ($monthday-1) * 24 * 60 * 60;
- $this->processOccurrenceItem($items, $start, $end, $daynow, $this->recur["startocc"], $this->recur["endocc"], $this->tz, $remindersonly);
- }
- else if(isset($this->recur["nday"]) && isset($this->recur["weekdays"])) { // Nth [weekday] in month X of every N years
- // Go the correct month
- $monthnow = $now + $this->daysInMonth($now, $this->monthOfYear($this->recur["month"])) * 24 * 60 * 60;
- // Find first matching weekday in this month
- for($wday = 0; $wday < 7; $wday++)
- {
- $daynow = $monthnow + $wday * 60 * 60 * 24;
- $nowtime = $this->gmtime($daynow); // Get the weekday of the current day
- if($this->recur["weekdays"] & (1 << $nowtime["tm_wday"])) { // Selected ?
- $firstday = $wday;
- break;
- }
- }
- // Same as above (monthly)
- $daynow = $monthnow + ($firstday + ($this->recur["nday"]-1)*7) * 60 * 60 * 24;
- while($this->monthStartOf($daynow) != $this->monthStartOf($monthnow)) {
- $daynow -= 7 * 60 * 60 * 24;
- }
- $this->processOccurrenceItem($items, $start, $end, $daynow, $this->recur["startocc"], $this->recur["endocc"], $this->tz, $remindersonly);
- } else if ($this->recur['regen']) {
- $year_starttime = $this->gmtime($now);
- $is_next_leapyear = $this->isLeapYear($year_starttime['tm_year'] + 1900 + 1); // +1 next year
- $now = $daystart + ($is_next_leapyear ? 31622400 /* Leap year in seconds */ : 31536000 /*year in seconds*/);
- if ($now <= $dayend) {
- $this->processOccurrenceItem($items, $daystart, $end, $now, $this->recur["startocc"], $this->recur["endocc"], $this->tz, $remindersonly);
- }
- }
- }
- }
- //to get all exception items
- if (!empty($this->recur['changed_occurences']))
- $this->processExceptionItems($items, $start, $end);
- }
- // sort items on starttime
- usort($items, array($this, "sortStarttime"));
- // Return the MAPI-compatible list of items for this object
- return $items;
- }
- function sortStarttime($a, $b)
- {
- $aTime = $a[$this->proptags["startdate"]];
- $bTime = $b[$this->proptags["startdate"]];
- return $aTime==$bTime?0:($aTime>$bTime?1:-1);
- }
- /**
- * daysInMonth
- *
- * Returns the number of days in the upcoming number of months. If you specify 1 month as
- * $months it will give you the number of days in the month of $date. If you specify more it
- * will also count the days in the upcomming months and add that to the number of days. So
- * if you have a date in march and you specify $months as 2 it will return 61.
- * @param Integer $date Specified date as timestamp from which you want to know the number
- * of days in the month.
- * @param Integer $months Number of months you want to know the number of days in.
- * @returns Integer Number of days in the specified amount of months.
- */
- function daysInMonth($date, $months) {
- $days = 0;
- for($i=0;$i<$months;$i++) {
- $days += date("t", $date + $days * 24 * 60 * 60);
- }
- return $days;
- }
- // Converts MAPI-style 'minutes' into the month of the year [0..11]
- function monthOfYear($minutes) {
- $d = gmmktime(0,0,0,1,1,2001); // The year 2001 was a non-leap year, and the minutes provided are always in non-leap-year-minutes
- $d += $minutes*60;
- $dtime = $this->gmtime($d);
- return $dtime["tm_mon"];
- }
- function sortExceptionStart($a, $b)
- {
- return $a["start"] == $b["start"] ? 0 : ($a["start"] > $b["start"] ? 1 : -1 );
- }
- }
- ?>