function extractDateTime($data, $property, $field)
{
global $tz_array;
// Initialize values.
unset($unixtime, $date, $time, $allday);
$allday = '';
#suppress error on returning undef.
// Check for zulu time.
$zulu_time = false;
if (substr($data, -1) == 'Z') {
$zulu_time = true;
}
$data = str_replace('Z', '', $data);
// Remove some substrings we don't want to look at.
$data = str_replace('T', '', $data);
$field = str_replace(';VALUE=DATE-TIME', '', $field);
// Extract date-only values.
if (preg_match('/^' . $property . ';VALUE=DATE/i', $field) || ereg('^([0-9]{4})([0-9]{2})([0-9]{2})$', $data)) {
// Pull out the date value. Minimum year is 1970.
ereg('([0-9]{4})([0-9]{2})([0-9]{2})', $data, $dt_check);
if ($dt_check[1] < 1970) {
$data = '1971' . $dt_check[2] . $dt_check[3];
}
// Set the values.
$unixtime = strtotime($data);
$date = date('Ymd', $unixtime);
$allday = $data;
} else {
// Pull out the timezone, or use GMT if zulu time was indicated.
if (preg_match('/^' . $property . ';TZID=/i', $field)) {
$tz_tmp = explode('=', $field);
$tz_dt = $tz_tmp[1];
unset($tz_tmp);
} elseif ($zulu_time) {
$tz_dt = 'GMT';
}
// Pull out the date and time values. Minimum year is 1970.
preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})/', $data, $regs);
if ($regs[1] < 1970) {
$regs[1] = '1971';
}
$date = $regs[1] . $regs[2] . $regs[3];
$time = $regs[4] . $regs[5];
$unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
// Check for daylight savings time.
$dlst = date('I', $unixtime);
$server_offset_tmp = chooseOffset($unixtime);
if (isset($tz_dt)) {
if (array_key_exists($tz_dt, $tz_array)) {
$offset_tmp = $tz_array[$tz_dt][$dlst];
} else {
$offset_tmp = '+0000';
}
} elseif (isset($calendar_tz)) {
if (array_key_exists($calendar_tz, $tz_array)) {
$offset_tmp = $tz_array[$calendar_tz][$dlst];
} else {
$offset_tmp = '+0000';
}
} else {
$offset_tmp = $server_offset_tmp;
}
// Set the values.
$unixtime = calcTime($offset_tmp, $server_offset_tmp, $unixtime);
$date = date('Ymd', $unixtime);
$time = date('Hi', $unixtime);
}
// Return the results.
return array($unixtime, $date, $time, $allday);
}
$recurrence_id[] = $eachval[1];
}
}
unset($parts, $part, $eachval);
$data = str_replace('T', '', $data);
$data = str_replace('Z', '', $data);
ereg('([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})', $data, $regs);
$recurrence_id['date'] = $regs[1] . $regs[2] . $regs[3];
$recurrence_id['time'] = $regs[4] . $regs[5];
$recur_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
if (isset($recurrence_id['tzid'])) {
$offset_tmp = chooseOffset($recur_unixtime, $recurrence_id['tzid']);
} elseif (isset($calendar_tz)) {
$offset_tmp = chooseOffset($recur_unixtime, $calendar_tz);
} else {
$offset_tmp = chooseOffset($recur_unixtime);
}
$recur_unixtime = calcTime($offset_tmp, @$server_offset_tmp, $recur_unixtime);
$recurrence_id['date'] = date('Ymd', $recur_unixtime);
$recurrence_id['time'] = date('Hi', $recur_unixtime);
$recurrence_d = date('Ymd', $recur_unixtime);
$recurrence_t = date('Hi', $recur_unixtime);
unset($server_offset_tmp);
break;
case 'SEQUENCE':
$sequence = $data;
break;
case 'UID':
$uid = $data;
break;
case 'X-WR-CALNAME':
function extractDateTime($data, $property, $field)
{
global $tz_array, $phpiCal_config, $calendar_tz;
$allday = '';
#suppress error on returning undef.
// Check for zulu time.
$zulu_time = false;
if (substr($data, -1) == 'Z') {
$zulu_time = true;
}
// Pull out the timezone, or use GMT if zulu time was indicated.
if (preg_match('/^' . $property . ';TZID=/i', $field)) {
$tz_tmp = explode('=', $field);
$tz_dt = match_tz($tz_tmp[1]);
#echo "$tz_dt<br>";
} elseif ($zulu_time) {
$tz_dt = 'GMT';
}
// Extract date-only values.
if (preg_match('/^' . $property . ';VALUE=DATE:/i', $field) || ereg('^([0-9]{4})([0-9]{2})([0-9]{2})$', $data)) {
// Pull out the date value. Minimum year is 1970.
ereg('([0-9]{4})([0-9]{2})([0-9]{2})', $data, $dt_check);
if ($dt_check[1] < 1970) {
$dt_check[1] = '1970';
}
# convert to date-time
$data = $dt_check[1] . $dt_check[2] . $dt_check[3] . "T000000";
$time = '';
$allday = $data;
}
// Extract date-time values.
// Pull out the date and time values. Minimum year is 1970.
preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})T{0,1}([0-9]{0,2})([0-9]{0,2})/', $data, $regs);
if (!isset($regs[1])) {
return;
}
if ($regs[1] < 1970) {
$regs[1] = '1970';
}
$date = $regs[1] . $regs[2] . $regs[3];
$time = $regs[4] . $regs[5];
$unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
# chooseOffset checks for Daylight Saving Time
$server_offset_tmp = chooseOffset($unixtime, $phpiCal_config->timezone);
if (isset($tz_dt)) {
$offset_tmp = chooseOffset($unixtime, $tz_dt);
} elseif (isset($calendar_tz)) {
$offset_tmp = chooseOffset($unixtime, $calendar_tz);
$tz_dt = $calendar_tz;
} else {
$offset_tmp = $server_offset_tmp;
$tz_dt = $phpiCal_config->timezone;
}
// Set the values.
if ($allday == '') {
$unixtime = calcTime($offset_tmp, $server_offset_tmp, $unixtime);
}
#echo "offset_tmp $offset_tmp, server_offset_tmp $server_offset_tmp, $unixtime =".date("Ymd His",$unixtime)." $time<br>";
$date = date('Ymd', $unixtime);
if ($allday == '') {
$time = date('Hi', $unixtime);
}
// Return the results.
return array($unixtime, $date, $time, $allday, $tz_dt);
}
function icalToArray($filename, $fromdate, $todate)
{
// $filename = "/var/www/phpicalendar/calendars/pepe.ics";
$timezone = "America/Buenos_Aires";
$tz_array['America/Buenos_Aires'] = array('-0300', '-0300');
$master_array = array();
$ifile = @fopen($filename, "r");
if ($ifile == FALSE) {
exit("Cant Open file: " . $filename . "\n");
}
$nextline = fgets($ifile, 1024);
if (trim($nextline) != 'BEGIN:VCALENDAR') {
exit("It is not a valid ical file: " . $filename . "\n");
}
// $master_array['-4'] = Array ( Array ( 'mtime' => 1182541233, 'filename' => './calendars/pepe.ics','webcal' => 'no'));
// $master_array['-3'] = Array ( 'pepe');
// Set a value so we can check to make sure $master_array contains valid data
$master_array['-1'] = 'valid cal file';
// Set default calendar name - can be overridden by X-WR-CALNAME
$calendar_name = $cal_filename;
$master_array['calendar_name'] = $calendar_name;
$overlap_array = array();
// read file in line by line
// XXX end line is skipped because of the 1-line readahead
while (!feof($ifile)) {
$line = $nextline;
$nextline = fgets($ifile, 1024);
$nextline = ereg_replace("[\r\n]", "", $nextline);
#handle continuation lines that start with either a space or a tab (MS Outlook)
while ($nextline[0] == " " || $nextline[0] == "\t") {
$line = $line . substr($nextline, 1);
$nextline = fgets($ifile, 1024);
$nextline = ereg_replace("[\r\n]", "", $nextline);
}
$line = trim($line);
switch ($line) {
case 'BEGIN:VEVENT':
// each of these vars were being set to an empty string
unset($start_time, $end_time, $start_date, $end_date, $summary, $allday_start, $allday_end, $start, $end, $the_duration, $beginning, $rrule_array, $start_of_vevent, $description, $url, $valarm_description, $start_unixtime, $end_unixtime, $display_end_tmp, $end_time_tmp1, $recurrence_id, $uid, $class, $location, $rrule, $abs_until, $until_check, $until, $bymonth, $byday, $bymonthday, $byweek, $byweekno, $byminute, $byhour, $bysecond, $byyearday, $bysetpos, $wkst, $interval, $number);
$except_dates = array();
$except_times = array();
$bymonth = array();
$bymonthday = array();
$first_duration = TRUE;
$count = 1000000;
$valarm_set = FALSE;
$attendee = array();
$organizer = array();
break;
case 'END:VEVENT':
if (!isset($url)) {
$url = '';
}
if (!isset($type)) {
$type = '';
}
// Handle DURATION
if (!isset($end_unixtime) && isset($the_duration)) {
$end_unixtime = $start_unixtime + $the_duration;
$end_time = date('Hi', $end_unixtime);
}
// CLASS support
if (isset($class)) {
if ($class == 'PRIVATE') {
$summary = '**PRIVATE**';
$description = '**PRIVATE**';
} elseif ($class == 'CONFIDENTIAL') {
$summary = '**CONFIDENTIAL**';
$description = '**CONFIDENTIAL**';
}
}
// make sure we have some value for $uid
if (!isset($uid)) {
$uid = $uid_counter;
$uid_counter++;
$uid_valid = false;
} else {
$uid_valid = true;
}
if ($uid_valid && isset($processed[$uid]) && isset($recurrence_id['date'])) {
$old_start_date = $processed[$uid][0];
$old_start_time = $processed[$uid][1];
if ($recurrence_id['value'] == 'DATE') {
$old_start_time = '-1';
}
$start_date_tmp = $recurrence_id['date'];
if (!isset($start_date)) {
$start_date = $old_start_date;
}
if (!isset($start_time)) {
$start_time = $master_array[$old_start_date][$old_start_time][$uid]['event_start'];
}
if (!isset($start_unixtime)) {
$start_unixtime = $master_array[$old_start_date][$old_start_time][$uid]['start_unixtime'];
}
if (!isset($end_unixtime)) {
$end_unixtime = $master_array[$old_start_date][$old_start_time][$uid]['end_unixtime'];
}
if (!isset($end_time)) {
$end_time = $master_array[$old_start_date][$old_start_time][$uid]['event_end'];
}
if (!isset($summary)) {
$summary = $master_array[$old_start_date][$old_start_time][$uid]['event_text'];
}
if (!isset($length)) {
$length = $master_array[$old_start_date][$old_start_time][$uid]['event_length'];
}
if (!isset($description)) {
$description = $master_array[$old_start_date][$old_start_time][$uid]['description'];
}
if (!isset($location)) {
$location = $master_array[$old_start_date][$old_start_time][$uid]['location'];
}
if (!isset($organizer)) {
$organizer = $master_array[$old_start_date][$old_start_time][$uid]['organizer'];
}
if (!isset($status)) {
$status = $master_array[$old_start_date][$old_start_time][$uid]['status'];
}
if (!isset($attendee)) {
$attendee = $master_array[$old_start_date][$old_start_time][$uid]['attendee'];
}
if (!isset($url)) {
$url = $master_array[$old_start_date][$old_start_time][$uid]['url'];
}
removeOverlap($start_date_tmp, $old_start_time, $uid, $master_array, $overlap_array);
if (isset($master_array[$start_date_tmp][$old_start_time][$uid])) {
unset($master_array[$start_date_tmp][$old_start_time][$uid]);
// SJBO added $uid twice here
if (sizeof($master_array[$start_date_tmp][$old_start_time]) == 0) {
unset($master_array[$start_date_tmp][$old_start_time]);
}
}
$write_processed = false;
} else {
$write_processed = true;
}
if (!isset($summary)) {
$summary = '';
}
if (!isset($description)) {
$description = '';
}
if (!isset($status)) {
$status = '';
}
if (!isset($class)) {
$class = '';
}
if (!isset($location)) {
$location = '';
}
$mArray_begin = mktime(0, 0, 0, 12, 21, $this_year - 1);
$mArray_end = mktime(0, 0, 0, 1, 12, $this_year + 1);
if (isset($start_time) && isset($end_time)) {
// Mozilla style all-day events or just really long events
if ($end_time - $start_time > 2345) {
$allday_start = $start_date;
$allday_end = $start_date + 1;
}
}
if (isset($start_unixtime, $end_unixtime) && date('Ymd', $start_unixtime) != date('Ymd', $end_unixtime)) {
$spans_day = true;
$bleed_check = $start_unixtime - $end_unixtime < 60 * 60 * 24 ? '-1' : '0';
} else {
$spans_day = false;
$bleed_check = 0;
}
if (isset($start_time) && $start_time != '') {
preg_match('/([0-9]{2})([0-9]{2})/', $start_time, $time);
preg_match('/([0-9]{2})([0-9]{2})/', $end_time, $time2);
if (isset($start_unixtime) && isset($end_unixtime)) {
$length = $end_unixtime - $start_unixtime;
} else {
$length = $time2[1] * 60 + $time2[2] - ($time[1] * 60 + $time[2]);
}
$drawKey = drawEventTimes($start_time, $end_time);
preg_match('/([0-9]{2})([0-9]{2})/', $drawKey['draw_start'], $time3);
$hour = $time3[1];
$minute = $time3[2];
}
// RECURRENCE-ID Support
if (isset($recurrence_d)) {
$recurrence_delete["{$recurrence_d}"]["{$recurrence_t}"] = $uid;
}
// handle single changes in recurring events
// Maybe this is no longer need since done at bottom of parser? - CL 11/20/02
if ($uid_valid && $write_processed) {
if (!isset($hour)) {
$hour = 00;
}
if (!isset($minute)) {
$minute = 00;
}
$processed[$uid] = array($start_date, $hour . $minute, $type);
}
// Handling of the all day events
if (isset($allday_start) && $allday_start != '') {
$start = strtotime($allday_start);
if ($spans_day) {
$allday_end = date('Ymd', $end_unixtime);
}
if (isset($allday_end)) {
$end = strtotime($allday_end);
} else {
$end = strtotime('+1 day', $start);
}
// Changed for 1.0, basically write out the entire event if it starts while the array is written.
# while loop handles multi-day allday events to write separate master_array elements for each day.
if ($start < $mArray_end && $start < $end) {
while ($start != $end && $start < $mArray_end) {
$start_date2 = date('Ymd', $start);
$master_array[$start_date2]['-1'][$uid] = array('event_text' => $summary, 'description' => $description, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url, 'status' => $status, 'class' => $class);
$start = strtotime('+1 day', $start);
}
if (!$write_processed) {
$master_array[$start_date]['-1'][$uid]['exception'] = true;
}
}
}
// Handling regular events
if (isset($start_time) && $start_time != '' && (!isset($allday_start) || $allday_start == '')) {
if ($end_time >= $bleed_time && $bleed_check == '-1') {
$start_tmp = strtotime(date('Ymd', $start_unixtime));
$end_date_tmp = date('Ymd', $end_unixtime);
while ($start_tmp < $end_unixtime) {
$start_date_tmp = date('Ymd', $start_tmp);
if ($start_date_tmp == $start_date) {
$time_tmp = $hour . $minute;
$start_time_tmp = $start_time;
} else {
$time_tmp = '0000';
$start_time_tmp = '0000';
}
if ($start_date_tmp == $end_date_tmp) {
$end_time_tmp = $end_time;
} else {
$end_time_tmp = '2400';
$display_end_tmp = $end_time;
}
$master_array[$start_date_tmp][$time_tmp][$uid] = array('event_start' => $start_time_tmp, 'event_end' => $end_time_tmp, 'start_unixtime' => $start_unixtime, 'end_unixtime' => $end_unixtime, 'event_text' => $summary, 'event_length' => $length, 'event_overlap' => 0, 'description' => $description, 'status' => $status, 'class' => $class, 'spans_day' => true, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url);
if (isset($display_end_tmp)) {
$master_array[$start_date_tmp][$time_tmp][$uid]['display_end'] = $display_end_tmp;
}
checkOverlap($start_date_tmp, $time_tmp, $uid, $master_array, $overlap_array);
$start_tmp = strtotime('+1 day', $start_tmp);
}
if (!$write_processed) {
$master_array[$start_date][$hour . $minute][$uid]['exception'] = true;
}
} else {
if ($bleed_check == '-1') {
$display_end_tmp = $end_time;
$end_time_tmp1 = '2400';
}
if (!isset($end_time_tmp1)) {
$end_time_tmp1 = $end_time;
}
// This if statement should prevent writing of an excluded date if its the first recurrance - CL
if (!in_array($start_date, $except_dates)) {
$master_array[$start_date][$hour . $minute][$uid] = array('event_start' => $start_time, 'event_end' => $end_time_tmp1, 'start_unixtime' => $start_unixtime, 'end_unixtime' => $end_unixtime, 'event_text' => $summary, 'event_length' => $length, 'event_overlap' => 0, 'description' => $description, 'status' => $status, 'class' => $class, 'spans_day' => false, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url);
if (isset($display_end_tmp)) {
$master_array[$start_date][$hour . $minute][$uid]['display_end'] = $display_end_tmp;
}
checkOverlap($start_date, $hour . $minute, $uid, $master_array, $overlap_array);
if (!$write_processed) {
$master_array[$start_date][$hour . $minute][$uid]['exception'] = true;
}
}
}
}
// Handling of the recurring events, RRULE
if (isset($rrule_array) && is_array($rrule_array)) {
if (isset($allday_start) && $allday_start != '') {
$hour = '-';
$minute = '1';
$rrule_array['START_DAY'] = $allday_start;
$rrule_array['END_DAY'] = $allday_end;
$rrule_array['END'] = 'end';
$recur_start = $allday_start;
$start_date = $allday_start;
if (isset($allday_end)) {
$diff_allday_days = dayCompare($allday_end, $allday_start);
} else {
$diff_allday_days = 1;
}
} else {
$rrule_array['START_DATE'] = $start_date;
$rrule_array['START_TIME'] = $start_time;
$rrule_array['END_TIME'] = $end_time;
$rrule_array['END'] = 'end';
}
$start_date_time = strtotime($start_date);
if (!isset($fromdate)) {
#this should happen if not in one of the rss views
/* $this_month_start_time = strtotime($this_year.$this_month.'01');
if ($current_view == 'year' || ($save_parsed_cals == 'yes' && !$is_webcal)|| $current_view == 'print' && $printview == 'year') {
$start_range_time = strtotime($this_year.'-01-01 -2 weeks');
$end_range_time = strtotime($this_year.'-12-31 +2 weeks');
} else {
$start_range_time = strtotime('-1 month -2 day', $this_month_start_time);
$end_range_time = strtotime('+2 month +2 day', $this_month_start_time);
}*/
} else {
$start_range_time = strtotime($fromdate);
$end_range_time = strtotime($todate) + 60 * 60 * 24;
}
foreach ($rrule_array as $key => $val) {
switch ($key) {
case 'FREQ':
switch ($val) {
case 'YEARLY':
$freq_type = 'year';
break;
case 'MONTHLY':
$freq_type = 'month';
break;
case 'WEEKLY':
$freq_type = 'week';
break;
case 'DAILY':
$freq_type = 'day';
break;
case 'HOURLY':
$freq_type = 'hour';
break;
case 'MINUTELY':
$freq_type = 'minute';
break;
case 'SECONDLY':
$freq_type = 'second';
break;
}
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = strtolower($val);
break;
case 'COUNT':
$count = $val;
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $count;
break;
case 'UNTIL':
$until = str_replace('T', '', $val);
$until = str_replace('Z', '', $until);
if (strlen($until) == 8) {
$until = $until . '235959';
}
$abs_until = $until;
ereg('([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})', $until, $regs);
$until = mktime($regs[4], $regs[5], $regs[6], $regs[2], $regs[3], $regs[1]);
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = localizeDate($dateFormat_week, $until);
break;
case 'INTERVAL':
if ($val > 0) {
$number = $val;
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $number;
}
break;
case 'BYSECOND':
$bysecond = $val;
$bysecond = split(',', $bysecond);
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $bysecond;
break;
case 'BYMINUTE':
$byminute = $val;
$byminute = split(',', $byminute);
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byminute;
break;
case 'BYHOUR':
$byhour = $val;
$byhour = split(',', $byhour);
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byhour;
break;
case 'BYDAY':
$byday = $val;
$byday = split(',', $byday);
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byday;
break;
case 'BYMONTHDAY':
$bymonthday = $val;
$bymonthday = split(',', $bymonthday);
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $bymonthday;
break;
case 'BYYEARDAY':
$byyearday = $val;
$byyearday = split(',', $byyearday);
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byyearday;
break;
case 'BYWEEKNO':
$byweekno = $val;
$byweekno = split(',', $byweekno);
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $byweekno;
break;
case 'BYMONTH':
$bymonth = $val;
$bymonth = split(',', $bymonth);
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $bymonth;
break;
case 'BYSETPOS':
$bysetpos = $val;
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $bysetpos;
break;
case 'WKST':
$wkst = $val;
$master_array[$start_date][$hour . $minute][$uid]['recur'][$key] = $wkst;
break;
case 'END':
$recur = $master_array[$start_date][$hour . $minute][$uid]['recur'];
// Modify the COUNT based on BYDAY
if (is_array($byday) && isset($count)) {
$blah = sizeof($byday);
$count = $count / $blah;
unset($blah);
}
if (!isset($number)) {
$number = 1;
}
// if $until isn't set yet, we set it to the end of our range we're looking at
if (!isset($until)) {
$until = $end_range_time;
}
if (!isset($abs_until)) {
$abs_until = date('YmdHis', $end_range_time);
}
$end_date_time = $until;
$start_range_time_tmp = $start_range_time;
$end_range_time_tmp = $end_range_time;
// echo date("Ymd",$until)." ".date("Ymd",$end_range_time)."<br>";
// echo date("Ymd",$end_range_time_tmp)." >= ".date("Ymd",$start_date_time)." && ".date("Ymd",$start_range_time_tmp)." <= ".date("Ymd",$end_date_time)."<br>";
// If the $end_range_time is less than the $start_date_time, or $start_range_time is greater
// than $end_date_time, we may as well forget the whole thing
// It doesn't do us any good to spend time adding data we aren't even looking at
// this will prevent the year view from taking way longer than it needs to
if ($end_range_time_tmp >= $start_date_time && $start_range_time_tmp <= $end_date_time) {
// if the beginning of our range is less than the start of the item, we may as well set it equal to it
if ($start_range_time_tmp < $start_date_time) {
$start_range_time_tmp = $start_date_time;
}
if ($end_range_time_tmp > $end_date_time) {
$end_range_time_tmp = $end_date_time;
}
// initialize the time we will increment
$next_range_time = $start_range_time_tmp;
// FIXME: This is a hack to fix repetitions with $interval > 1
if ($count > 1 && $number > 1) {
$count = 1 + ($count - 1) * $number;
}
$count_to = 0;
// start at the $start_range and go until we hit the end of our range.
if (!isset($wkst)) {
$wkst = 'SU';
}
$wkst3char = two2threeCharDays($wkst);
while ($next_range_time >= $start_range_time_tmp && $next_range_time <= $end_range_time_tmp && $count_to != $count) {
$func = $freq_type . 'Compare';
$diff = $func(date('Ymd', $next_range_time), $start_date);
if ($diff < $count) {
if ($diff % $number == 0) {
$interval = $number;
switch ($rrule_array['FREQ']) {
case 'DAILY':
$next_date_time = $next_range_time;
$recur_data[] = $next_date_time;
break;
case 'WEEKLY':
// Populate $byday with the default day if it's not set.
if (!isset($byday)) {
$byday[] = strtoupper(substr(date('D', $start_date_time), 0, 2));
}
if (is_array($byday)) {
foreach ($byday as $day) {
$day = two2threeCharDays($day);
#need to find the first day of the appropriate week.
#dateOfweek uses weekstartday as a global variable. This has to be changed to $wkst,
#but then needs to be reset for other functions
$week_start_day_tmp = $week_start_day;
$week_start_day = $wkst3char;
$the_sunday = dateOfWeek(date("Ymd", $next_range_time), $wkst3char);
$next_date_time = strtotime($day, strtotime($the_sunday)) + 12 * 60 * 60;
$week_start_day = $week_start_day_tmp;
#see above reset to global value
#reset $next_range_time to first instance in this week.
if ($next_date_time < $next_range_time) {
$next_range_time = $next_date_time;
}
// Since this renders events from $next_range_time to $next_range_time + 1 week, I need to handle intervals
// as well. This checks to see if $next_date_time is after $day_start (i.e., "next week"), and thus
// if we need to add $interval weeks to $next_date_time.
if ($next_date_time > strtotime($week_start_day, $next_range_time) && $interval > 1) {
# $next_date_time = strtotime('+'.($interval - 1).' '.$freq_type, $next_date_time);
}
$recur_data[] = $next_date_time;
}
}
break;
case 'MONTHLY':
if (empty($bymonth)) {
$bymonth = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);
}
$next_range_time = strtotime(date('Y-m-01', $next_range_time));
$next_date_time = $next_date_time;
if (isset($bysetpos)) {
/* bysetpos code from dustinbutler
start on day 1 or last day.
if day matches any BYDAY the count is incremented.
SETPOS = 4, need 4th match
SETPOS = -1, need 1st match
*/
$year = date('Y', $next_range_time);
$month = date('m', $next_range_time);
if ($bysetpos > 0) {
$next_day = '+1 day';
$day = 1;
} else {
$next_day = '-1 day';
$day = $totalDays[$month];
}
$day = mktime(0, 0, 0, $month, $day, $year);
$countMatch = 0;
while ($countMatch != abs($bysetpos)) {
/* Does this day match a BYDAY value? */
$thisDay = $day;
$textDay = strtoupper(substr(date('D', $thisDay), 0, 2));
if (in_array($textDay, $byday)) {
$countMatch++;
}
$day = strtotime($next_day, $thisDay);
}
$recur_data[] = $thisDay;
} elseif (isset($bymonthday) && !isset($byday)) {
foreach ($bymonthday as $day) {
if ($day < 0) {
$day = date('t', $next_range_time) + $day + 1;
}
$year = date('Y', $next_range_time);
$month = date('m', $next_range_time);
if (checkdate($month, $day, $year)) {
$next_date_time = mktime(0, 0, 0, $month, $day, $year);
$recur_data[] = $next_date_time;
}
}
} elseif (is_array($byday)) {
foreach ($byday as $day) {
ereg('([-\\+]{0,1})?([0-9]{1})?([A-Z]{2})', $day, $byday_arr);
//Added for 2.0 when no modifier is set
if ($byday_arr[2] != '') {
$nth = $byday_arr[2] - 1;
} else {
$nth = 0;
}
$on_day = two2threeCharDays($byday_arr[3]);
$on_day_num = two2threeCharDays($byday_arr[3], false);
if (isset($byday_arr[1]) && $byday_arr[1] == '-') {
$last_day_tmp = date('t', $next_range_time);
$next_range_time = strtotime(date('Y-m-' . $last_day_tmp, $next_range_time));
$last_tmp = date('w', $next_range_time) == $on_day_num ? '' : 'last ';
$next_date_time = strtotime($last_tmp . $on_day, $next_range_time) - $nth * 604800;
$month = date('m', $next_date_time);
if (in_array($month, $bymonth)) {
$recur_data[] = $next_date_time;
}
#reset next_range_time to start of month
$next_range_time = strtotime(date('Y-m-' . '1', $next_range_time));
} elseif (isset($bymonthday) && !empty($bymonthday)) {
// This supports MONTHLY where BYDAY and BYMONTH are both set
foreach ($bymonthday as $day) {
$year = date('Y', $next_range_time);
$month = date('m', $next_range_time);
if (checkdate($month, $day, $year)) {
$next_date_time = mktime(0, 0, 0, $month, $day, $year);
$daday = strtolower(strftime("%a", $next_date_time));
if ($daday == $on_day && in_array($month, $bymonth)) {
$recur_data[] = $next_date_time;
}
}
}
} elseif (isset($byday_arr[1]) && $byday_arr[1] != '-') {
$next_date_time = strtotime($on_day, $next_range_time) + $nth * 604800;
$month = date('m', $next_date_time);
if (in_array($month, $bymonth)) {
$recur_data[] = $next_date_time;
}
}
$next_date = date('Ymd', $next_date_time);
}
}
break;
case 'YEARLY':
if (!isset($bymonth) || sizeof($bymonth) == 0) {
$m = date('m', $start_date_time);
$bymonth = array("{$m}");
}
foreach ($bymonth as $month) {
// Make sure the month & year used is within the start/end_range.
if ($month < date('m', $next_range_time)) {
$year = date('Y', $next_range_time);
} else {
$year = date('Y', $next_range_time);
}
if (isset($bysetpos)) {
/* bysetpos code from dustinbutler
start on day 1 or last day.
if day matches any BYDAY the count is incremented.
SETPOS = 4, need 4th match
SETPOS = -1, need 1st match
*/
if ($bysetpos > 0) {
$next_day = '+1 day';
$day = 1;
} else {
$next_day = '-1 day';
$day = date("t", $month);
}
$day = mktime(12, 0, 0, $month, $day, $year);
$countMatch = 0;
while ($countMatch != abs($bysetpos)) {
/* Does this day match a BYDAY value? */
$thisDay = $day;
$textDay = strtoupper(substr(date('D', $thisDay), 0, 2));
if (in_array($textDay, $byday)) {
$countMatch++;
}
$day = strtotime($next_day, $thisDay);
}
$recur_data[] = $thisDay;
}
if (isset($byday) && is_array($byday)) {
$checkdate_time = mktime(0, 0, 0, $month, 1, $year);
foreach ($byday as $day) {
ereg('([-\\+]{0,1})?([0-9]{1})?([A-Z]{2})', $day, $byday_arr);
if ($byday_arr[2] != '') {
$nth = $byday_arr[2] - 1;
} else {
$nth = 0;
}
$on_day = two2threeCharDays($byday_arr[3]);
$on_day_num = two2threeCharDays($byday_arr[3], false);
if ($byday_arr[1] == '-') {
$last_day_tmp = date('t', $checkdate_time);
$checkdate_time = strtotime(date('Y-m-' . $last_day_tmp, $checkdate_time));
$last_tmp = date('w', $checkdate_time) == $on_day_num ? '' : 'last ';
$next_date_time = strtotime($last_tmp . $on_day . ' -' . $nth . ' week', $checkdate_time);
} else {
$next_date_time = strtotime($on_day . ' +' . $nth . ' week', $checkdate_time);
}
}
} else {
$day = date('d', $start_date_time);
$next_date_time = mktime(0, 0, 0, $month, $day, $year);
//echo date('Ymd',$next_date_time).$summary.'<br>';
}
$recur_data[] = $next_date_time;
}
if (isset($byyearday)) {
foreach ($byyearday as $yearday) {
ereg('([-\\+]{0,1})?([0-9]{1,3})', $yearday, $byyearday_arr);
if ($byyearday_arr[1] == '-') {
$ydtime = mktime(0, 0, 0, 12, 31, $this_year);
$yearnum = $byyearday_arr[2] - 1;
$next_date_time = strtotime('-' . $yearnum . ' days', $ydtime);
} else {
$ydtime = mktime(0, 0, 0, 1, 1, $this_year);
$yearnum = $byyearday_arr[2] - 1;
$next_date_time = strtotime('+' . $yearnum . ' days', $ydtime);
}
$recur_data[] = $next_date_time;
}
}
break;
default:
// anything else we need to end the loop
$next_range_time = $end_range_time_tmp + 100;
$count_to = $count;
}
} else {
$interval = 1;
}
$next_range_time = strtotime('+' . $interval . ' ' . $freq_type, $next_range_time);
} else {
// end the loop because we aren't going to write this event anyway
$count_to = $count;
}
// use the same code to write the data instead of always changing it 5 times
if (isset($recur_data) && is_array($recur_data)) {
$recur_data_hour = @substr($start_time, 0, 2);
$recur_data_minute = @substr($start_time, 2, 2);
foreach ($recur_data as $recur_data_time) {
$recur_data_year = date('Y', $recur_data_time);
$recur_data_month = date('m', $recur_data_time);
$recur_data_day = date('d', $recur_data_time);
$recur_data_date = $recur_data_year . $recur_data_month . $recur_data_day;
if ($recur_data_time > $start_date_time && $recur_data_time <= $end_date_time && $count_to != $count && !in_array($recur_data_date, $except_dates)) {
if (isset($allday_start) && $allday_start != '') {
$start_time2 = $recur_data_time;
$end_time2 = strtotime('+' . $diff_allday_days . ' days', $recur_data_time);
while ($start_time2 < $end_time2) {
$start_date2 = date('Ymd', $start_time2);
$master_array[$start_date2]['-1'][$uid] = array('event_text' => $summary, 'description' => $description, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url, 'status' => $status, 'class' => $class, 'recur' => $recur);
$start_time2 = strtotime('+1 day', $start_time2);
}
} else {
$start_unixtime_tmp = mktime($recur_data_hour, $recur_data_minute, 0, $recur_data_month, $recur_data_day, $recur_data_year);
$end_unixtime_tmp = $start_unixtime_tmp + $length;
if ($end_time >= $bleed_time && $bleed_check == '-1') {
$start_tmp = strtotime(date('Ymd', $start_unixtime_tmp));
$end_date_tmp = date('Ymd', $end_unixtime_tmp);
while ($start_tmp < $end_unixtime_tmp) {
$start_date_tmp = date('Ymd', $start_tmp);
if ($start_date_tmp == $recur_data_year . $recur_data_month . $recur_data_day) {
$time_tmp = $hour . $minute;
$start_time_tmp = $start_time;
} else {
$time_tmp = '0000';
$start_time_tmp = '0000';
}
if ($start_date_tmp == $end_date_tmp) {
$end_time_tmp = $end_time;
} else {
$end_time_tmp = '2400';
$display_end_tmp = $end_time;
}
// Let's double check the until to not write past it
$until_check = $start_date_tmp . $time_tmp . '00';
if ($abs_until > $until_check) {
$master_array[$start_date_tmp][$time_tmp][$uid] = array('event_start' => $start_time_tmp, 'event_end' => $end_time_tmp, 'start_unixtime' => $start_unixtime_tmp, 'end_unixtime' => $end_unixtime_tmp, 'event_text' => $summary, 'event_length' => $length, 'event_overlap' => 0, 'description' => $description, 'status' => $status, 'class' => $class, 'spans_day' => true, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url, 'recur' => $recur);
if (isset($display_end_tmp)) {
$master_array[$start_date_tmp][$time_tmp][$uid]['display_end'] = $display_end_tmp;
}
checkOverlap($start_date_tmp, $time_tmp, $uid, $master_array, $overlap_array);
}
$start_tmp = strtotime('+1 day', $start_tmp);
}
} else {
if ($bleed_check == '-1') {
$display_end_tmp = $end_time;
$end_time_tmp1 = '2400';
}
if (!isset($end_time_tmp1)) {
$end_time_tmp1 = $end_time;
}
// Let's double check the until to not write past it
$until_check = $recur_data_date . $hour . $minute . '00';
if ($abs_until > $until_check) {
$master_array[$recur_data_date][$hour . $minute][$uid] = array('event_start' => $start_time, 'event_end' => $end_time_tmp1, 'start_unixtime' => $start_unixtime_tmp, 'end_unixtime' => $end_unixtime_tmp, 'event_text' => $summary, 'event_length' => $length, 'event_overlap' => 0, 'description' => $description, 'status' => $status, 'class' => $class, 'spans_day' => false, 'location' => $location, 'organizer' => serialize($organizer), 'attendee' => serialize($attendee), 'calnumber' => $calnumber, 'calname' => $actual_calname, 'url' => $url, 'recur' => $recur);
if (isset($display_end_tmp)) {
$master_array[$recur_data_date][$hour . $minute][$uid]['display_end'] = $display_end_tmp;
}
checkOverlap($recur_data_date, $hour . $minute, $uid, $master_array, $overlap_array);
}
}
}
}
}
unset($recur_data);
}
}
}
}
}
}
// This should remove any exdates that were missed.
// Added for version 0.9.5 modified in 2.22 remove anything that doesn't have an event_start
if (is_array($except_dates)) {
foreach ($except_dates as $key => $value) {
if (isset($master_array[$value])) {
foreach ($master_array[$value] as $time => $value2) {
if (!isset($value2[$uid]['event_start'])) {
unset($master_array[$value][$time][$uid]);
}
}
}
}
}
// Clear event data now that it's been saved.
unset($start_time, $start_time_tmp, $end_time, $end_time_tmp, $start_unixtime, $start_unixtime_tmp, $end_unixtime, $end_unixtime_tmp, $summary, $length, $description, $status, $class, $location, $organizer, $attendee);
break;
case 'END:VTODO':
if (!$vtodo_priority && $status == 'COMPLETED') {
$vtodo_sort = 11;
} elseif (!$vtodo_priority) {
$vtodo_sort = 10;
} else {
$vtodo_sort = $vtodo_priority;
}
// CLASS support
if (isset($class)) {
if ($class == 'PRIVATE') {
$summary = '**PRIVATE**';
$description = '**PRIVATE**';
} elseif ($class == 'CONFIDENTIAL') {
$summary = '**CONFIDENTIAL**';
$description = '**CONFIDENTIAL**';
}
}
$master_array['-2']["{$vtodo_sort}"]["{$uid}"] = array('start_date' => $start_date, 'start_time' => $start_time, 'vtodo_text' => $summary, 'due_date' => $due_date, 'due_time' => $due_time, 'completed_date' => $completed_date, 'completed_time' => $completed_time, 'priority' => $vtodo_priority, 'status' => $status, 'class' => $class, 'categories' => $vtodo_categories, 'description' => $description, 'calname' => $actual_calname);
unset($start_date, $start_time, $due_date, $due_time, $completed_date, $completed_time, $vtodo_priority, $status, $class, $vtodo_categories, $summary, $description);
$vtodo_set = FALSE;
break;
case 'BEGIN:VTODO':
$vtodo_set = TRUE;
break;
case 'BEGIN:VALARM':
$valarm_set = TRUE;
break;
case 'END:VALARM':
$valarm_set = FALSE;
break;
default:
unset($field, $data, $prop_pos, $property);
if (ereg("([^:]+):(.*)", $line, $line)) {
$field = $line[1];
$data = $line[2];
$property = $field;
$prop_pos = strpos($property, ';');
if ($prop_pos !== false) {
$property = substr($property, 0, $prop_pos);
}
$property = strtoupper($property);
switch ($property) {
// Start VTODO Parsing
//
case 'DUE':
$datetime = extractDateTime($data, $property, $field, $tz_array);
$due_date = $datetime[1];
$due_time = $datetime[2];
break;
case 'COMPLETED':
$datetime = extractDateTime($data, $property, $field, $tz_array);
$completed_date = $datetime[1];
$completed_time = $datetime[2];
break;
case 'PRIORITY':
$vtodo_priority = "{$data}";
break;
case 'STATUS':
$status = "{$data}";
break;
case 'CLASS':
$class = "{$data}";
break;
case 'CATEGORIES':
$vtodo_categories = "{$data}";
break;
//
// End VTODO Parsing
//
// End VTODO Parsing
case 'DTSTART':
$datetime = extractDateTime($data, $property, $field, $tz_array);
$start_unixtime = $datetime[0];
$start_date = $datetime[1];
$start_time = $datetime[2];
$allday_start = $datetime[3];
break;
case 'DTEND':
$datetime = extractDateTime($data, $property, $field, $tz_array);
$end_unixtime = $datetime[0];
$end_date = $datetime[1];
$end_time = $datetime[2];
$allday_end = $datetime[3];
break;
case 'EXDATE':
$data = split(",", $data);
foreach ($data as $exdata) {
$exdata = str_replace('T', '', $exdata);
$exdata = str_replace('Z', '', $exdata);
preg_match('/([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})/', $exdata, $regs);
$except_dates[] = $regs[1] . $regs[2] . $regs[3];
// Added for Evolution, since they dont think they need to tell me which time to exclude.
if ($regs[4] == '' && $start_time != '') {
$except_times[] = $start_time;
} else {
$except_times[] = $regs[4] . $regs[5];
}
}
break;
case 'SUMMARY':
$data = str_replace("\\n", "<br />", $data);
$data = str_replace("\\t", " ", $data);
$data = str_replace("\\r", "<br />", $data);
$data = str_replace('$', '$', $data);
$data = stripslashes($data);
// $data = htmlentities(urlencode($data));
$data = htmlentities($data);
if ($valarm_set == FALSE) {
$summary = $data;
} else {
$valarm_summary = $data;
}
break;
case 'DESCRIPTION':
$data = str_replace("\\n", "<br />", $data);
$data = str_replace("\\t", " ", $data);
$data = str_replace("\\r", "<br />", $data);
$data = str_replace('$', '$', $data);
$data = stripslashes($data);
$data = htmlentities(urlencode($data));
if ($valarm_set == FALSE) {
$description = $data;
} else {
$valarm_description = $data;
}
break;
case 'RECURRENCE-ID':
$parts = explode(';', $field);
foreach ($parts as $part) {
$eachval = split('=', $part);
if ($eachval[0] == 'RECURRENCE-ID') {
// do nothing
} elseif ($eachval[0] == 'TZID') {
$recurrence_id['tzid'] = parse_tz($eachval[1]);
} elseif ($eachval[0] == 'RANGE') {
$recurrence_id['range'] = $eachval[1];
} elseif ($eachval[0] == 'VALUE') {
$recurrence_id['value'] = $eachval[1];
} else {
$recurrence_id[] = $eachval[1];
}
}
unset($parts, $part, $eachval);
$data = str_replace('T', '', $data);
$data = str_replace('Z', '', $data);
ereg('([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{0,2})([0-9]{0,2})', $data, $regs);
$recurrence_id['date'] = $regs[1] . $regs[2] . $regs[3];
$recurrence_id['time'] = $regs[4] . $regs[5];
$recur_unixtime = mktime($regs[4], $regs[5], 0, $regs[2], $regs[3], $regs[1]);
$dlst = date('I', $recur_unixtime);
$server_offset_tmp = chooseOffset($recur_unixtime, &$timezone, &$tz_array);
if (isset($recurrence_id['tzid'])) {
$tz_tmp = $recurrence_id['tzid'];
$offset_tmp = $tz_array[$tz_tmp][$dlst];
} elseif (isset($calendar_tz)) {
$offset_tmp = $tz_array[$calendar_tz][$dlst];
} else {
$offset_tmp = $server_offset_tmp;
}
$recur_unixtime = calcTime($offset_tmp, $server_offset_tmp, $recur_unixtime);
$recurrence_id['date'] = date('Ymd', $recur_unixtime);
$recurrence_id['time'] = date('Hi', $recur_unixtime);
$recurrence_d = date('Ymd', $recur_unixtime);
$recurrence_t = date('Hi', $recur_unixtime);
unset($server_offset_tmp);
break;
case 'UID':
$uid = $data;
break;
case 'X-WR-CALNAME':
$actual_calname = $data;
$master_array['calendar_name'] = $actual_calname;
$cal_displaynames[$cal_key] = $actual_calname;
#correct the default calname based on filename
break;
case 'X-WR-TIMEZONE':
$calendar_tz = parse_tz($data);
$master_array['calendar_tz'] = $calendar_tz;
break;
case 'DURATION':
if ($first_duration == TRUE && !stristr($field, '=DURATION')) {
ereg('^P([0-9]{1,2}[W])?([0-9]{1,2}[D])?([T]{0,1})?([0-9]{1,2}[H])?([0-9]{1,2}[M])?([0-9]{1,2}[S])?', $data, $duration);
$weeks = str_replace('W', '', $duration[1]);
$days = str_replace('D', '', $duration[2]);
$hours = str_replace('H', '', $duration[4]);
$minutes = str_replace('M', '', $duration[5]);
$seconds = str_replace('S', '', $duration[6]);
$the_duration = $weeks * 60 * 60 * 24 * 7 + $days * 60 * 60 * 24 + $hours * 60 * 60 + $minutes * 60 + $seconds;
$first_duration = FALSE;
}
break;
case 'RRULE':
$data = str_replace('RRULE:', '', $data);
$rrule = split(';', $data);
foreach ($rrule as $recur) {
ereg('(.*)=(.*)', $recur, $regs);
$rrule_array[$regs[1]] = $regs[2];
}
break;
case 'ATTENDEE':
$field = str_replace("ATTENDEE;CN=", "", $field);
$data = str_replace("mailto:", "", $data);
$attendee[] = array('name' => stripslashes($field), 'email' => stripslashes($data));
break;
case 'ORGANIZER':
$field = str_replace("ORGANIZER;CN=", "", $field);
$data = str_replace("mailto:", "", $data);
$organizer[] = array('name' => stripslashes($field), 'email' => stripslashes($data));
break;
case 'LOCATION':
$data = str_replace("\\n", "<br />", $data);
$data = str_replace("\\t", " ", $data);
$data = str_replace("\\r", "<br />", $data);
$data = stripslashes($data);
$location = $data;
break;
case 'URL':
$url = $data;
break;
}
}
}
}
unset($master_array['calendar_name']);
unset($master_array['-1']);
unset($master_array['-3']);
unset($master_array['-4']);
// print_R($master_array);
// print_R($overlap_array);
return $master_array;
}