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friendica/include/event.php
Roland Häder 293436e5fd Some rewrites: 
- max_proccesses_reach() and maxload_reached() (why no _ behind max?) are called
  both way, static and with object reference.
- this is strongly discouraged and should be avoided as its support (in PHP) may
  be dropped in future releases.
- used $a = get_app(); to encapsulate code (even when the function does
  currently the same, it may be changed later)

Signed-off-by: Roland Häder <roland@mxchange.org>
2016-12-13 10:16:36 +01:00

856 lines
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PHP
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<?php
/**
* @file include/event.php
* @brief functions specific to event handling
*/
require_once('include/bbcode.php');
require_once('include/map.php');
require_once('include/datetime.php');
function format_event_html($ev, $simple = false) {
if(! ((is_array($ev)) && count($ev)))
return '';
$bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
$event_start = (($ev['adjust']) ? day_translate(datetime_convert('UTC', date_default_timezone_get(),
$ev['start'] , $bd_format ))
: day_translate(datetime_convert('UTC', 'UTC',
$ev['start'] , $bd_format)));
$event_end = (($ev['adjust']) ? day_translate(datetime_convert('UTC', date_default_timezone_get(),
$ev['finish'] , $bd_format ))
: day_translate(datetime_convert('UTC', 'UTC',
$ev['finish'] , $bd_format )));
if ($simple) {
$o = "<h3>".bbcode($ev['summary'])."</h3>";
$o .= "<p>".bbcode($ev['desc'])."</p>";
$o .= "<h4>".t('Starts:')."</h4><p>".$event_start."</p>";
if(! $ev['nofinish'])
$o .= "<h4>".t('Finishes:')."</h4><p>".$event_end."</p>";
if(strlen($ev['location']))
$o .= "<h4>".t('Location:')."</h4><p>".$ev['location']."</p>";
return $o;
}
$o = '<div class="vevent">' . "\r\n";
$o .= '<p class="summary event-summary">' . bbcode($ev['summary']) . '</p>' . "\r\n";
$o .= '<p class="description event-description">' . bbcode($ev['desc']) . '</p>' . "\r\n";
$o .= '<p class="event-start">' . t('Starts:') . ' <abbr class="dtstart" title="'
. datetime_convert('UTC','UTC',$ev['start'], (($ev['adjust']) ? ATOM_TIME : 'Y-m-d\TH:i:s' ))
. '" >'.$event_start
. '</abbr></p>' . "\r\n";
if(! $ev['nofinish'])
$o .= '<p class="event-end" >' . t('Finishes:') . ' <abbr class="dtend" title="'
. datetime_convert('UTC','UTC',$ev['finish'], (($ev['adjust']) ? ATOM_TIME : 'Y-m-d\TH:i:s' ))
. '" >'.$event_end
. '</abbr></p>' . "\r\n";
if(strlen($ev['location'])){
$o .= '<p class="event-location"> ' . t('Location:') . ' <span class="location">'
. bbcode($ev['location'])
. '</span></p>' . "\r\n";
if (strpos($ev['location'], "[map") !== False) {
$map = generate_named_map($ev['location']);
if ($map!==$ev['location']) $o.=$map;
}
}
$o .= '</div>' . "\r\n";
return $o;
}
/*
function parse_event($h) {
require_once('include/Scrape.php');
require_once('include/html2bbcode');
$h = '<html><body>' . $h . '</body></html>';
$ret = array();
try {
$dom = HTML5_Parser::parse($h);
} catch (DOMException $e) {
logger('parse_event: parse error: ' . $e);
}
if(! $dom)
return $ret;
$items = $dom->getElementsByTagName('*');
foreach($items as $item) {
if(attribute_contains($item->getAttribute('class'), 'vevent')) {
$level2 = $item->getElementsByTagName('*');
foreach($level2 as $x) {
if(attribute_contains($x->getAttribute('class'),'dtstart') && $x->getAttribute('title')) {
$ret['start'] = $x->getAttribute('title');
if(! strpos($ret['start'],'Z'))
$ret['adjust'] = true;
}
if(attribute_contains($x->getAttribute('class'),'dtend') && $x->getAttribute('title'))
$ret['finish'] = $x->getAttribute('title');
if(attribute_contains($x->getAttribute('class'),'description'))
$ret['desc'] = $x->textContent;
if(attribute_contains($x->getAttribute('class'),'location'))
$ret['location'] = $x->textContent;
}
}
}
// sanitise
if((x($ret,'desc')) && ((strpos($ret['desc'],'<') !== false) || (strpos($ret['desc'],'>') !== false))) {
$config = HTMLPurifier_Config::createDefault();
$config->set('Cache.DefinitionImpl', null);
$purifier = new HTMLPurifier($config);
$ret['desc'] = html2bbcode($purifier->purify($ret['desc']));
}
if((x($ret,'location')) && ((strpos($ret['location'],'<') !== false) || (strpos($ret['location'],'>') !== false))) {
$config = HTMLPurifier_Config::createDefault();
$config->set('Cache.DefinitionImpl', null);
$purifier = new HTMLPurifier($config);
$ret['location'] = html2bbcode($purifier->purify($ret['location']));
}
if(x($ret,'start'))
$ret['start'] = datetime_convert('UTC','UTC',$ret['start']);
if(x($ret,'finish'))
$ret['finish'] = datetime_convert('UTC','UTC',$ret['finish']);
return $ret;
}
*/
function format_event_bbcode($ev) {
$o = '';
if($ev['summary'])
$o .= '[event-summary]' . $ev['summary'] . '[/event-summary]';
if($ev['desc'])
$o .= '[event-description]' . $ev['desc'] . '[/event-description]';
if($ev['start'])
$o .= '[event-start]' . $ev['start'] . '[/event-start]';
if(($ev['finish']) && (! $ev['nofinish']))
$o .= '[event-finish]' . $ev['finish'] . '[/event-finish]';
if($ev['location'])
$o .= '[event-location]' . $ev['location'] . '[/event-location]';
if($ev['adjust'])
$o .= '[event-adjust]' . $ev['adjust'] . '[/event-adjust]';
return $o;
}
function bbtovcal($s) {
$o = '';
$ev = bbtoevent($s);
if($ev['desc'])
$o = format_event_html($ev);
return $o;
}
function bbtoevent($s) {
$ev = array();
$match = '';
if(preg_match("/\[event\-summary\](.*?)\[\/event\-summary\]/is",$s,$match))
$ev['summary'] = $match[1];
$match = '';
if(preg_match("/\[event\-description\](.*?)\[\/event\-description\]/is",$s,$match))
$ev['desc'] = $match[1];
$match = '';
if(preg_match("/\[event\-start\](.*?)\[\/event\-start\]/is",$s,$match))
$ev['start'] = $match[1];
$match = '';
if(preg_match("/\[event\-finish\](.*?)\[\/event\-finish\]/is",$s,$match))
$ev['finish'] = $match[1];
$match = '';
if(preg_match("/\[event\-location\](.*?)\[\/event\-location\]/is",$s,$match))
$ev['location'] = $match[1];
$match = '';
if(preg_match("/\[event\-adjust\](.*?)\[\/event\-adjust\]/is",$s,$match))
$ev['adjust'] = $match[1];
$ev['nofinish'] = (((x($ev, 'start') && $ev['start']) && (!x($ev, 'finish') || !$ev['finish'])) ? 1 : 0);
return $ev;
}
function sort_by_date($a) {
usort($a,'ev_compare');
return $a;
}
function ev_compare($a,$b) {
$date_a = (($a['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$a['start']) : $a['start']);
$date_b = (($b['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$b['start']) : $b['start']);
if($date_a === $date_b)
return strcasecmp($a['desc'],$b['desc']);
return strcmp($date_a,$date_b);
}
function event_delete($event_id) {
if ($event_id == 0)
return;
q("DELETE FROM `event` WHERE `id` = %d", intval($event_id));
logger("Deleted event ".$event_id, LOGGER_DEBUG);
}
function event_store($arr) {
require_once('include/datetime.php');
require_once('include/items.php');
require_once('include/bbcode.php');
$a = get_app();
$arr['created'] = (($arr['created']) ? $arr['created'] : datetime_convert());
$arr['edited'] = (($arr['edited']) ? $arr['edited'] : datetime_convert());
$arr['type'] = (($arr['type']) ? $arr['type'] : 'event' );
$arr['cid'] = ((intval($arr['cid'])) ? intval($arr['cid']) : 0);
$arr['uri'] = (x($arr,'uri') ? $arr['uri'] : item_new_uri($a->get_hostname(),$arr['uid']));
$arr['private'] = ((x($arr,'private')) ? intval($arr['private']) : 0);
if($arr['cid'])
$c = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($arr['cid']),
intval($arr['uid'])
);
else
$c = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
intval($arr['uid'])
);
if(count($c))
$contact = $c[0];
// Existing event being modified
if($arr['id']) {
// has the event actually changed?
$r = q("SELECT * FROM `event` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($arr['id']),
intval($arr['uid'])
);
if((! count($r)) || ($r[0]['edited'] === $arr['edited'])) {
// Nothing has changed. Grab the item id to return.
$r = q("SELECT * FROM `item` WHERE `event-id` = %d AND `uid` = %d LIMIT 1",
intval($arr['id']),
intval($arr['uid'])
);
return((count($r)) ? $r[0]['id'] : 0);
}
// The event changed. Update it.
$r = q("UPDATE `event` SET
`edited` = '%s',
`start` = '%s',
`finish` = '%s',
`summary` = '%s',
`desc` = '%s',
`location` = '%s',
`type` = '%s',
`adjust` = %d,
`nofinish` = %d
WHERE `id` = %d AND `uid` = %d",
dbesc($arr['edited']),
dbesc($arr['start']),
dbesc($arr['finish']),
dbesc($arr['summary']),
dbesc($arr['desc']),
dbesc($arr['location']),
dbesc($arr['type']),
intval($arr['adjust']),
intval($arr['nofinish']),
intval($arr['id']),
intval($arr['uid'])
);
$r = q("SELECT * FROM `item` WHERE `event-id` = %d AND `uid` = %d LIMIT 1",
intval($arr['id']),
intval($arr['uid'])
);
if(count($r)) {
$object = '<object><type>' . xmlify(ACTIVITY_OBJ_EVENT) . '</type><title></title><id>' . xmlify($arr['uri']) . '</id>';
$object .= '<content>' . xmlify(format_event_bbcode($arr)) . '</content>';
$object .= '</object>' . "\n";
q("UPDATE `item` SET `body` = '%s', `object` = '%s', `edited` = '%s' WHERE `id` = %d AND `uid` = %d",
dbesc(format_event_bbcode($arr)),
dbesc($object),
dbesc($arr['edited']),
intval($r[0]['id']),
intval($arr['uid'])
);
$item_id = $r[0]['id'];
} else
$item_id = 0;
call_hooks("event_updated", $arr['id']);
return $item_id;
}
else {
// New event. Store it.
$r = q("INSERT INTO `event` ( `uid`,`cid`,`uri`,`created`,`edited`,`start`,`finish`,`summary`, `desc`,`location`,`type`,
`adjust`,`nofinish`,`allow_cid`,`allow_gid`,`deny_cid`,`deny_gid`)
VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', '%s', '%s', '%s' ) ",
intval($arr['uid']),
intval($arr['cid']),
dbesc($arr['uri']),
dbesc($arr['created']),
dbesc($arr['edited']),
dbesc($arr['start']),
dbesc($arr['finish']),
dbesc($arr['summary']),
dbesc($arr['desc']),
dbesc($arr['location']),
dbesc($arr['type']),
intval($arr['adjust']),
intval($arr['nofinish']),
dbesc($arr['allow_cid']),
dbesc($arr['allow_gid']),
dbesc($arr['deny_cid']),
dbesc($arr['deny_gid'])
);
$r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($arr['uri']),
intval($arr['uid'])
);
if(count($r))
$event = $r[0];
$item_arr = array();
$item_arr['uid'] = $arr['uid'];
$item_arr['contact-id'] = $arr['cid'];
$item_arr['uri'] = $arr['uri'];
$item_arr['parent-uri'] = $arr['uri'];
$item_arr['guid'] = $arr['guid'];
$item_arr['type'] = 'activity';
$item_arr['wall'] = (($arr['cid']) ? 0 : 1);
$item_arr['contact-id'] = $contact['id'];
$item_arr['owner-name'] = $contact['name'];
$item_arr['owner-link'] = $contact['url'];
$item_arr['owner-avatar'] = $contact['thumb'];
$item_arr['author-name'] = $contact['name'];
$item_arr['author-link'] = $contact['url'];
$item_arr['author-avatar'] = $contact['thumb'];
$item_arr['title'] = '';
$item_arr['allow_cid'] = $arr['allow_cid'];
$item_arr['allow_gid'] = $arr['allow_gid'];
$item_arr['deny_cid'] = $arr['deny_cid'];
$item_arr['deny_gid'] = $arr['deny_gid'];
$item_arr['private'] = $arr['private'];
$item_arr['last-child'] = 1;
$item_arr['visible'] = 1;
$item_arr['verb'] = ACTIVITY_POST;
$item_arr['object-type'] = ACTIVITY_OBJ_EVENT;
$item_arr['origin'] = ((intval($arr['cid']) == 0) ? 1 : 0);
$item_arr['body'] = format_event_bbcode($event);
$item_arr['object'] = '<object><type>' . xmlify(ACTIVITY_OBJ_EVENT) . '</type><title></title><id>' . xmlify($arr['uri']) . '</id>';
$item_arr['object'] .= '<content>' . xmlify(format_event_bbcode($event)) . '</content>';
$item_arr['object'] .= '</object>' . "\n";
$item_id = item_store($item_arr);
$r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
intval($arr['uid'])
);
//if(count($r))
// $plink = $a->get_baseurl() . '/display/' . $r[0]['nickname'] . '/' . $item_id;
if($item_id) {
//q("UPDATE `item` SET `plink` = '%s', `event-id` = %d WHERE `uid` = %d AND `id` = %d",
// dbesc($plink),
// intval($event['id']),
// intval($arr['uid']),
// intval($item_id)
//);
q("UPDATE `item` SET `event-id` = %d WHERE `uid` = %d AND `id` = %d",
intval($event['id']),
intval($arr['uid']),
intval($item_id)
);
}
call_hooks("event_created", $event['id']);
return $item_id;
}
}
function get_event_strings() {
// First day of the week (0 = Sunday)
$firstDay = get_pconfig(local_user(),'system','first_day_of_week');
if ($firstDay === false) $firstDay=0;
$i18n = array(
"firstDay" => $firstDay,
"Sun" => t("Sun"),
"Mon" => t("Mon"),
"Tue" => t("Tue"),
"Wed" => t("Wed"),
"Thu" => t("Thu"),
"Fri" => t("Fri"),
"Sat" => t("Sat"),
"Sunday" => t("Sunday"),
"Monday" => t("Monday"),
"Tuesday" => t("Tuesday"),
"Wednesday" => t("Wednesday"),
"Thursday" => t("Thursday"),
"Friday" => t("Friday"),
"Saturday" => t("Saturday"),
"Jan" => t("Jan"),
"Feb" => t("Feb"),
"Mar" => t("Mar"),
"Apr" => t("Apr"),
"May" => t("May"),
"Jun" => t("Jun"),
"Jul" => t("Jul"),
"Aug" => t("Aug"),
"Sep" => t("Sept"),
"Oct" => t("Oct"),
"Nov" => t("Nov"),
"Dec" => t("Dec"),
"January" => t("January"),
"February" => t("February"),
"March" => t("March"),
"April" => t("April"),
"May" => t("May"),
"June" => t("June"),
"July" => t("July"),
"August" => t("August"),
"September" => t("September"),
"October" => t("October"),
"November" => t("November"),
"December" => t("December"),
"today" => t("today"),
"month" => t("month"),
"week" => t("week"),
"day" => t("day"),
"allday" => t("all-day"),
"noevent" => t("No events to display"),
"dtstart_label" => t("Starts:"),
"dtend_label" => t("Finishes:"),
"location_label" => t("Location:")
);
return $i18n;
}
/**
* @brief Get an event by its event ID
*
* @param type $owner_uid The User ID of the owner of the event
* @param type $event_params An assoziative array with
* int 'event_id' => The ID of the event in the event table
* @param type $sql_extra
* @return array Query result
*/
function event_by_id($owner_uid = 0, $event_params, $sql_extra = '') {
// ownly allow events if there is a valid owner_id
if($owner_uid == 0)
return;
// query for the event by event id
$r = q("SELECT `event`.*, `item`.`id` AS `itemid`,`item`.`plink`,
`item`.`author-name`, `item`.`author-avatar`, `item`.`author-link` FROM `event`
STRAIGHT_JOIN `item` ON `item`.`event-id` = `event`.`id` AND `item`.`uid` = `event`.`uid`
WHERE `event`.`uid` = %d AND `event`.`id` = %d $sql_extra",
intval($owner_uid),
intval($event_params["event_id"])
);
if(count($r))
return $r;
}
/**
* @brief Get all events in a specific timeframe
*
* @param int $owner_uid The User ID of the owner of the events
* @param array $event_params An assoziative array with
* int 'ignored' =>
* string 'start' => Start time of the timeframe
* string 'finish' => Finish time of the timeframe
* string 'adjust_start' =>
* string 'adjust_start' =>
*
* @param string $sql_extra Additional sql conditions (e.g. permission request)
* @return array Query results
*/
function events_by_date($owner_uid = 0, $event_params, $sql_extra = '') {
// ownly allow events if there is a valid owner_id
if($owner_uid == 0)
return;
// query for the event by date
$r = q("SELECT `event`.*, `item`.`id` AS `itemid`,`item`.`plink`,
`item`.`author-name`, `item`.`author-avatar`, `item`.`author-link` FROM `event`
STRAIGHT_JOIN `item` ON `item`.`event-id` = `event`.`id` AND `item`.`uid` = `event`.`uid`
WHERE `event`.`uid` = %d AND event.ignore = %d
AND ((`adjust` = 0 AND (`finish` >= '%s' OR (nofinish AND start >= '%s')) AND `start` <= '%s')
OR (`adjust` = 1 AND (`finish` >= '%s' OR (nofinish AND start >= '%s')) AND `start` <= '%s'))
$sql_extra ",
intval($owner_uid),
intval($event_params["ignored"]),
dbesc($event_params["start"]),
dbesc($event_params["start"]),
dbesc($event_params["finish"]),
dbesc($event_params["adjust_start"]),
dbesc($event_params["adjust_start"]),
dbesc($event_params["adjust_finish"])
);
if(count($r))
return $r;
}
/**
* @brief Convert an array query results in an arry which could be used by the events template
*
* @param array $arr Event query array
* @return array Event array for the template
*/
function process_events ($arr) {
$events=array();
$last_date = '';
$fmt = t('l, F j');
if (count($arr)) {
foreach($arr as $rr) {
$j = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], 'j') : datetime_convert('UTC','UTC',$rr['start'],'j'));
$d = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], $fmt) : datetime_convert('UTC','UTC',$rr['start'],$fmt));
$d = day_translate($d);
$start = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['start'], 'c') : datetime_convert('UTC','UTC',$rr['start'],'c'));
if ($rr['nofinish']){
$end = null;
} else {
$end = (($rr['adjust']) ? datetime_convert('UTC',date_default_timezone_get(),$rr['finish'], 'c') : datetime_convert('UTC','UTC',$rr['finish'],'c'));
}
$is_first = ($d !== $last_date);
$last_date = $d;
$edit = ((! $rr['cid']) ? array($a->get_baseurl().'/events/event/'.$rr['id'],t('Edit event'),'','') : null);
$title = strip_tags(html_entity_decode(bbcode($rr['summary']),ENT_QUOTES,'UTF-8'));
if(! $title) {
list($title, $_trash) = explode("<br",bbcode($rr['desc']),2);
$title = strip_tags(html_entity_decode($title,ENT_QUOTES,'UTF-8'));
}
$html = format_event_html($rr);
$rr['desc'] = bbcode($rr['desc']);
$rr['location'] = bbcode($rr['location']);
$events[] = array(
'id'=>$rr['id'],
'start'=> $start,
'end' => $end,
'allDay' => false,
'title' => $title,
'j' => $j,
'd' => $d,
'is_first'=>$is_first,
'item'=>$rr,
'html'=>$html,
'plink' => array($rr['plink'],t('link to source'),'',''),
);
}
}
return $events;
}
/**
* @brief Format event to export format (ical/csv)
*
* @param array $events Query result for events
* @param string $format The output format (ical/csv)
* @param string $timezone The timezone of the user (not implemented yet)
*
* @return string Content according to selected export format
*/
function event_format_export ($events, $format = 'ical', $timezone) {
if(! ((is_array($events)) && count($events)))
return;
switch ($format) {
// format the exported data as a CSV file
case "csv":
header("Content-type: text/csv");
$o = '"Subject", "Start Date", "Start Time", "Description", "End Date", "End Time", "Location"' . PHP_EOL;
foreach ($events as $event) {
/// @todo the time / date entries don't include any information about the
// timezone the event is scheduled in :-/
$tmp1 = strtotime($event['start']);
$tmp2 = strtotime($event['finish']);
$time_format = "%H:%M:%S";
$date_format = "%Y-%m-%d";
$o .= '"'.$event['summary'].'", "'.strftime($date_format, $tmp1) .
'", "'.strftime($time_format, $tmp1).'", "'.$event['desc'] .
'", "'.strftime($date_format, $tmp2) .
'", "'.strftime($time_format, $tmp2) .
'", "'.$event['location'].'"' . PHP_EOL;
}
break;
// format the exported data as a ics file
case "ical":
header("Content-type: text/ics");
$o = 'BEGIN:VCALENDAR'. PHP_EOL
. 'VERSION:2.0' . PHP_EOL
. 'PRODID:-//friendica calendar export//0.1//EN' . PHP_EOL;
/// @todo include timezone informations in cases were the time is not in UTC
// see http://tools.ietf.org/html/rfc2445#section-4.8.3
// . 'BEGIN:VTIMEZONE' . PHP_EOL
// . 'TZID:' . $timezone . PHP_EOL
// . 'END:VTIMEZONE' . PHP_EOL;
// TODO instead of PHP_EOL CRLF should be used for long entries
// but test your solution against http://icalvalid.cloudapp.net/
// also long lines SHOULD be split at 75 characters length
foreach ($events as $event) {
if ($event['adjust'] == 1) {
$UTC = 'Z';
} else {
$UTC = '';
}
$o .= 'BEGIN:VEVENT' . PHP_EOL;
if ($event[start]) {
$tmp = strtotime($event['start']);
$dtformat = "%Y%m%dT%H%M%S".$UTC;
$o .= 'DTSTART:'.strftime($dtformat, $tmp).PHP_EOL;
}
if (!$event['nofinish']) {
$tmp = strtotime($event['finish']);
$dtformat = "%Y%m%dT%H%M%S".$UTC;
$o .= 'DTEND:'.strftime($dtformat, $tmp).PHP_EOL;
}
if ($event['summary'])
$tmp = $event['summary'];
$tmp = str_replace(PHP_EOL, PHP_EOL.' ',$tmp);
$tmp = addcslashes($tmp, ',;');
$o .= 'SUMMARY:' . $tmp . PHP_EOL;
if ($event['desc'])
$tmp = $event['desc'];
$tmp = str_replace(PHP_EOL, PHP_EOL.' ',$tmp);
$tmp = addcslashes($tmp, ',;');
$o .= 'DESCRIPTION:' . $tmp . PHP_EOL;
if ($event['location']) {
$tmp = $event['location'];
$tmp = str_replace(PHP_EOL, PHP_EOL.' ',$tmp);
$tmp = addcslashes($tmp, ',;');
$o .= 'LOCATION:' . $tmp . PHP_EOL;
}
$o .= 'END:VEVENT' . PHP_EOL;
$o .= PHP_EOL;
}
$o .= 'END:VCALENDAR' . PHP_EOL;
break;
}
return $o;
}
/**
* @brief Get all events for a user ID
*
* The query for events is done permission sensitive
* If the user is the owner of the calendar he/she
* will get all of his/her available events.
* If the user is only a visitor only the public events will
* be available
*
* @param int $uid The user ID
* @param int $sql_extra Additional sql conditions for permission
*
* @return array Query results
*/
function events_by_uid($uid = 0, $sql_extra = '') {
if($uid == 0)
return;
// The permission condition if no condition was transmitted
if($sql_extra == '')
$sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' ";
// does the user who requests happen to be the owner of the events
// requested? then show all of your events, otherwise only those that
// don't have limitations set in allow_cid and allow_gid
if (local_user() == $uid) {
$r = q("SELECT `start`, `finish`, `adjust`, `summary`, `desc`, `location`, `nofinish`
FROM `event` WHERE `uid`= %d AND `cid` = 0 ",
intval($uid)
);
} else {
$r = q("SELECT `start`, `finish`, `adjust`, `summary`, `desc`, `location`, `nofinish`
FROM `event` WHERE `uid`= %d AND `cid` = 0 $sql_extra ",
intval($uid)
);
}
if(count($r))
return $r;
}
/**
*
* @param int $uid The user ID
* @param string $format Output format (ical/csv)
* @return array With the results
* bool 'success' => True if the processing was successful
* string 'format' => The output format
* string 'extension' => The file extension of the output format
* string 'content' => The formatted output content
*
* @todo Respect authenticated users with events_by_uid()
*/
function event_export($uid, $format = 'ical') {
$process = false;
// we are allowed to show events
// get the timezone the user is in
$r = q("SELECT `timezone` FROM `user` WHERE `uid` = %d LIMIT 1", intval($uid));
if (count($r))
$timezone = $r[0]['timezone'];
// get all events which are owned by a uid (respects permissions);
$events = events_by_uid($uid);
// we have the events that are available for the requestor
// now format the output according to the requested format
if(count($events))
$res = event_format_export($events, $format, $timezone);
// If there are results the precess was successfull
if(x($res))
$process = true;
// get the file extension for the format
switch ($format) {
case "ical":
$file_ext = "ics";
break;
case "csv":
$file_ext = "csv";
break;
default:
$file_ext = "";
}
$arr = array(
'success' => $process,
'format' => $format,
'extension' => $file_ext,
'content' => $res,
);
return $arr;
}
/**
* @brief Get the events widget
*
* @return string Formated html of the evens widget
*/
function widget_events() {
$a = get_app();
$owner_uid = $a->data['user']['uid'];
// $a->data is only available if the profile page is visited. If the visited page is not part
// of the profile page it should be the personal /events page. So we can use $a->user
$user = ($a->data['user']['nickname'] ? $a->data['user']['nickname'] : $a->user['nickname']);
// The permission testing is a little bit tricky because we have to respect many cases
// It's not the private events page (we don't get the $owner_uid for /events)
if(! local_user() && ! $owner_uid)
return;
// Cal logged in user (test permission at foreign profile page)
// If the $owner uid is available we know it is part of one of the profile pages (like /cal)
// So we have to test if if it's the own profile page of the logged in user
// or a foreign one. For foreign profile pages we need to check if the feature
// for exporting the cal is enabled (otherwise the widget would appear for logged in users
// on foreigen profile pages even if the widget is disabled)
if(intval($owner_uid) && local_user() !== $owner_uid && ! feature_enabled($owner_uid, "export_calendar"))
return;
// If it's a kind of profile page (intval($owner_uid)) return if the user not logged in and
// export feature isn't enabled
if(intval($owner_uid) && ! local_user() && ! feature_enabled($owner_uid, "export_calendar"))
return;
return replace_macros(get_markup_template("events_aside.tpl"), array(
'$etitle' => t("Export"),
'$export_ical' => t("Export calendar as ical"),
'$export_csv' => t("Export calendar as csv"),
'$user' => $user
));
}
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