function format_event_html($ev, $simple = false) {
-
-
if(! ((is_array($ev)) && count($ev)))
return '';
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['finish']) {
+ $tmp = strtotime($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) {
+ $r = q("SELECT `start`, `finish`, `adjust`, `summary`, `desc`, `location`
+ FROM `event` WHERE `uid`= %d AND `cid` = 0 ",
+ intval($uid)
+ );
+ } else {
+ $r = q("SELECT `start`, `finish`, `adjust`, `summary`, `desc`, `location`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
+ ));
+
+}
projects / friendica.git / blobdiff