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','
','|'),array("\n","\n",'|'),$string);
return $string;
}
/**
* Callback function used to sanitize calendar data before saving it to file
* @param string $sValue array value
* @param string $sKey array key
* @access private
* @since 1.5.1 and 1.4.7
*/
function calendar_encodedata(&$sValue, $sKey) {
/**
* add html line breaks
* remove original ASCII line feeds and carriage returns
* replace ASCII vertical bar with html code in order to sanitize field delimiter
*/
$sValue = str_replace(array("\n","\r",'|'),array('','','|'),nl2br($sValue));
}
/**
* read events into array
*
* data is | delimited, just like addressbook
* files are structured like this:
* date|time|length|priority|title|message
* files are divided by year for performance increase
*/
function readcalendardata() {
global $calendardata, $username, $data_dir, $year;
$filename = getHashedFile($username, $data_dir, "$username.$year.cal");
if (file_exists($filename)){
$fp = fopen ($filename,'r');
if ($fp){
while ($fdata = fgetcsv ($fp, 4096, '|')) {
$calendardata[$fdata[0]][$fdata[1]] = array( 'length' => $fdata[2],
'priority' => $fdata[3],
'title' => str_replace("\n",' ',calendar_readmultiline($fdata[4])),
'message' => calendar_readmultiline($fdata[5]),
'reminder' => $fdata[6] );
}
fclose ($fp);
// this is to sort the events within a day on starttime
$new_calendardata = array();
foreach($calendardata as $day => $data) {
ksort($data, SORT_NUMERIC);
$new_calendardata[$day] = $data;
}
$calendardata = $new_calendardata;
}
}
}
/**
* Saves calendar data
* @return void
* @access private
*/
function writecalendardata() {
global $calendardata, $username, $data_dir, $year, $color;
$filetmp = getHashedFile($username, $data_dir, "$username.$year.cal.tmp");
$filename = getHashedFile($username, $data_dir, "$username.$year.cal");
$fp = fopen ($filetmp,"w");
if ($fp) {
while ( $calfoo = each ($calendardata)) {
while ( $calbar = each ($calfoo['value'])) {
$calfoobar = $calendardata[$calfoo['key']][$calbar['key']];
array_walk($calfoobar,'calendar_encodedata');
/**
* Make sure that reminder field is set. Calendar forms don't implement it,
* but it is still used for calendar data. Backwards compatibility.
*/
if (!isset($calfoobar['reminder'])) $calfoobar['reminder']='';
$calstr = "$calfoo[key]|$calbar[key]|$calfoobar[length]|$calfoobar[priority]|$calfoobar[title]|$calfoobar[message]|$calfoobar[reminder]\n";
if(sq_fwrite($fp, $calstr, 4096) === FALSE) {
error_box(_("Could not write calendar file %s", "$username.$year.cal.tmp"), $color);
}
}
}
fclose ($fp);
@unlink($filename);
rename($filetmp,$filename);
}
}
/**
* deletes event from file
* @return void
* @access private
*/
function delete_event($date, $time) {
global $calendardata, $username, $data_dir, $year;
$filename = getHashedFile($username, $data_dir, "$username.$year.cal");
$fp = fopen ($filename,'r');
if ($fp){
while ($fdata = fgetcsv ($fp, 4096, "|")) {
if (($fdata[0]==$date) && ($fdata[1]==$time)){
// do nothing
} else {
$calendardata[$fdata[0]][$fdata[1]] = array( 'length' => $fdata[2],
'priority' => $fdata[3],
'title' => $fdata[4],
'message' => $fdata[5],
'reminder' => $fdata[6] );
}
}
fclose ($fp);
}
writecalendardata();
}
/**
* same as delete but does not save calendar
* saving is done inside event_edit.php
* @return void
* @access private
* @todo code reuse
*/
function update_event($date, $time) {
global $calendardata, $username, $data_dir, $year;
$filename = getHashedFile($username, $data_dir, "$username.$year.cal");
$fp = fopen ($filename,'r');
if ($fp){
while ($fdata = fgetcsv ($fp, 4096, '|')) {
if (($fdata[0]==$date) && ($fdata[1]==$time)){
// do nothing
} else {
$calendardata[$fdata[0]][$fdata[1]] = array( 'length' => $fdata[2],
'priority' => $fdata[3],
'title' => $fdata[4],
'message' => $fdata[5],
'reminder' => $fdata[6] );
}
}
fclose ($fp);
}
}
?>