PHP Node::getCurrentNode方法代码示例

 /**
  * Return the IFrame URL generated by parsing the data in the URL field.
  *
  * @return string HTML code for the administration interface
  */
 private function getGeneratedUrl()
 {
     $patterns = array('/\\{node_id\\}/', '/\\{user_id\\}/', '/\\{last_viewed\\}/');
     $current_node = Node::getCurrentNode();
     if ($current_node) {
         $node_id = $current_node->getId();
     } else {
         $node_id = '';
     }
     $current_user = User::getCurrentUser();
     if ($current_user) {
         $user_id = $current_user->getId();
     } else {
         $user_id = '';
     }
     $user_last_viewed_ts = $this->getLastDisplayTimestamp($current_user);
     if ($user_last_viewed_ts) {
         $user_last_viewed = date('c', $user_last_viewed_ts);
     } else {
         $user_last_viewed = null;
     }
     $replacements = array(urlencode($node_id), urlencode($user_id), urlencode($user_last_viewed));
     $url = $this->getUrl();
     $new_url = preg_replace($patterns, $replacements, $url);
     return $new_url;
 }

 /** Replace all hyperlinks in the source string with their clickthrough-logged equivalents */
 public static function replaceHyperLinks(&$string, Content &$content)
 {
     $matches = self::findHyperLinks($string);
     //pretty_print_r($matches);
     if (!empty($matches[2])) {
         $node = Node::getCurrentNode();
         $user = User::getCurrentUser();
         $i = 0;
         foreach ($matches[2] as $link) {
             $new_link = self::getClickThroughLink($link, $content, $node, $user);
             $replacements[] = $matches[1][$i] . $new_link . $matches[3][$i];
             $i++;
         }
         //pretty_print_r($replacements);
         return str_replace($matches[0], $replacements, $string);
     } else {
         return $string;
     }
 }

 /** Log that this content has just been displayed to the user.  Will only log if the user is logged in */
 private function logContentDisplay()
 {
     if ($this->getLoggingStatus() == true && $this->log_as_content->getId() == $this->getId()) {
         // DEBUG::
         //echo "Logging ".get_class($this)." :: ".$this->__toString()."<br>";
         $user = User::getCurrentUser();
         $node = Node::getCurrentNode();
         if ($user != null && $node != null) {
             $user_id = $user->getId();
             $node_id = $node->getId();
             $db = AbstractDb::getObject();
             $sql = "SELECT * FROM content_display_log WHERE content_id='{$this->id}' AND user_id='{$user_id}' AND node_id='{$node_id}'";
             $db->execSql($sql, $log_rows, false);
             if ($log_rows != null) {
                 $sql = "UPDATE content_display_log SET num_display = num_display +1, last_display_timestamp = CURRENT_TIMESTAMP WHERE content_id='{$this->id}' AND user_id='{$user_id}' AND node_id='{$node_id}'";
             } else {
                 $sql = "INSERT INTO content_display_log (user_id, content_id, node_id) VALUES ('{$user_id}', '{$this->id}', '{$node_id}')";
             }
             $db->execSqlUpdate($sql, false);
         }
     }
 }

 /**
  * Get the current network for which the portal is displayed or to which a
  * user is physically connected.
  *
  * @param bool $real_network_only NOT IMPLEMENTED YET true or false.  If
  *                                true, the real physical network where the
  *                                user is connected is returned, and
  *                                the node set by setCurrentNode is ignored.
  *
  * @return objetc A Network object, NEVER returns null.
  *
  * @static
  * @access public
  */
 public static function getCurrentNetwork($real_network_only = false)
 {
     $retval = null;
     $current_node = Node::getCurrentNode();
     if ($current_node != null) {
         $retval = $current_node->getNetwork();
     } else {
         $retval = Network::getDefaultNetwork();
     }
     return $retval;
 }

 /** Retreives the user interface of this object.  Anything that overrides this method should call the parent method with it's output at the END of processing.
  * @return The HTML fragment for this interface */
 public function getUserUI()
 {
     $real_node = Node::getCurrentRealNode();
     //For production
     //$real_node = Node::getCurrentNode();//For testing
     $node = Node::getCurrentNode();
     $formHtml = null;
     if ($real_node) {
         $formHtml .= "<form action='" . BASE_URL_PATH . "content/ShoutBox/add_message.php'>\n";
         $formHtml .= "<input type='hidden' name='shoutbox_id' value='" . $this->getId() . "'/>\n";
         //$html .= "destination_url: ";pretty_print_r($_SERVER);
         $maxShoutChars = $this->getMaxShoutChars();
         $shoutFieldSize = $this->getShoutFieldSize();
         if ($maxShoutChars > 0) {
             $max_size = "maxlength='{$maxShoutChars}'";
             $maxShoutChars <= $shoutFieldSize ? $size = "size='{$maxShoutChars}'" : ($size = "size='{$shoutFieldSize}'");
         } else {
             $max_size = null;
             $size = "size='{$shoutFieldSize}'";
         }
         $formHtml .= "<input type='hidden' name='node_id' value='" . $node->getId() . "'/>\n";
         $formHtml .= "<input type='text' name='shout_text' id='shout_text' {$size} {$max_size} value=''/>\n";
         $onclick_content = $this->getOnClickContent();
         if ($onclick_content) {
             $onclick = "onclick=\"" . $onclick_content->getString() . "\"";
         } else {
             $onclick = null;
         }
         $formHtml .= "<input type='submit' name='shout_submit' {$onclick} value='" . _("Shout!") . "'>\n";
         $formHtml .= "</form>\n";
     } else {
         $formHtml .= "<p>" . _("Sorry, you must be at a hotspot to use the shoutbox") . "</p>\n";
     }
     $html_main = '';
     $displayNumItems = $this->getDisplayNumItems();
     $db = AbstractDb::getObject();
     if ($node) {
         $node_id = $db->escapeString($node->getId());
         if ($displayNumItems > 0) {
             $limit = "LIMIT {$displayNumItems}";
             $heading = "<em>" . sprintf(_("Last %d messages:"), $displayNumItems) . "</em>";
         } else {
             $limit = null;
             $heading = null;
         }
         $sql = "SELECT *, EXTRACT(EPOCH FROM creation_date) as creation_date_php FROM content_shoutbox_messages WHERE origin_node_id='{$node_id}' ORDER BY creation_date DESC {$limit}\n";
         $db->execSql($sql, $rows, false);
         $html_main .= "<ul>";
         $html_main .= "<li>{$formHtml}</li>";
         if ($rows) {
             //$html_main .= $heading;
             foreach ($rows as $row) {
                 $user = User::getObject($row['author_user_id']);
                 $content = Content::getObject($row['message_content_id']);
                 $html_main .= "<li>";
                 $dateStr = "<span class='date'>" . strftime('%x', $row['creation_date_php']) . "</span>\n";
                 $html_main .= $dateStr . ' ' . $user->getListUI() . ": \n";
                 $html_main .= "<div class='message'>" . $content->getListUI() . "</div>\n";
                 $html_main .= "</li>";
             }
         }
         $html_main .= "</ul>";
     } else {
         $html_main .= "<p>" . _("Sorry, I am unable to determine your current node") . "</p>\n";
     }
     $this->setUserUIMainDisplayContent($html_main);
     //$this->setUserUIMainInteractionArea($formHtml);
     return Content::getUserUI();
 }

 /**
  * Retreives the user interface of this object.
  *
  * Anything that overrides this method should call the parent method with
  * it's output at the END of processing.
  * @return string The HTML fragment for this interface
  */
 public function getUserUI()
 {
     // Init values
     $current_node = Node::getCurrentNode();
     $smarty = SmartyWifidog::getObject();
     // Set details about onlineusers
     if ($current_node) {
         // online users
         $online_users = $current_node->getOnlineUsers();
         foreach ($online_users as $online_user) {
             $online_user_array[] = $online_user->getListUI();
         }
         $num_online_users = count($online_users);
         if ($num_online_users > 0) {
             $smarty->assign('onlineUsers', $online_user_array);
         } else {
             $smarty->assign('onlineUsers', array());
         }
         // recent users
         $recent_users = $current_node->getRecentUsers();
         foreach ($recent_users as $recent_user) {
             $recent_user_array[] = $recent_user->getListUI();
         }
         $num_recent_users = count($recent_users);
         if ($num_recent_users > 0) {
             $smarty->assign('recentUsers', $recent_user_array);
         } else {
             $smarty->assign('recentUsers', array());
         }
         // active users
         $active_users = $current_node->getActiveUsers();
         foreach ($active_users as $active_user) {
             $active_user_array[] = $active_user->getListUI();
         }
         $num_active_users = count($active_users);
         if ($num_active_users > 0) {
             $smarty->assign('activeUsers', $active_user_array);
         } else {
             $smarty->assign('activeUsers', array());
         }
         // Compile HTML code
         $html = $smarty->fetch("templates/classes/UIUserList_getUserUI.tpl");
     } else {
         $html = _("The online user list must be viewed at a specific node");
     }
     $this->setUserUIMainDisplayContent($html);
     return Content::getUserUI();
 }

 /** Retrieves the connection history necessary for abuse control
  * @return false if abuse control is disabled */
 static function getAbuseControlConnectionHistory($user = null, $mac = null, $node = null)
 {
     if (!$user) {
         $user = User::getCurrentUser();
     }
     if (!$node) {
         $node = Node::getCurrentNode();
         //Maybe this should be getCurrentRealNode, but it would make debuging harder
     }
     $network = $node->getNetwork();
     $db = AbstractDb::getObject();
     if ($network->getConnectionLimitWindow()) {
         //$sql =  " SELECT * from connections \n";//For debugging
         $sql = " SELECT \n";
         $sql .= " SUM (incoming+outgoing) AS network_total_bytes, \n";
         $sql .= " SUM (CASE WHEN node_id = '" . $node->getId() . "' THEN (incoming+outgoing) END) AS node_total_bytes, \n";
         $sql .= " SUM (COALESCE(timestamp_out,last_updated) - timestamp_in) AS network_duration, \n";
         $sql .= " SUM (CASE WHEN node_id = '" . $node->getId() . "' THEN (COALESCE(timestamp_out,last_updated) - timestamp_in) END) AS node_duration \n";
         //For real //The coalesce is to make sure the substraction returns a value for active conections, since active connections do not yet have a timestamp_out.  Do NOT coalesce with CURRENT_TIMESTAMP, it could cause real problems for users in case of gateway crash.
         $sql .= " FROM connections \n";
         //For real
         $sql .= " JOIN nodes USING (node_id) \n";
         $sql .= " JOIN networks USING (network_id) \n";
         $sql .= " JOIN tokens ON (tokens.token_id = connections.token_id) \n";
         $sql .= " WHERE 1=1 \n";
         if ($mac) {
             //Catch some cheaters
             $mac = $db->escapeString($mac);
             $mac_sql_or = " OR connections.user_mac = '{$mac}' ";
         } else {
             $mac_sql_or = null;
         }
         $sql .= " AND (connections.user_id = '" . $user->getId() . "' {$mac_sql_or} ) \n";
         $sql .= " AND (timestamp_in > CURRENT_TIMESTAMP - networks.connection_limit_window OR tokens.token_status = '" . TOKEN_INUSE . "')";
         //Get every connection within the window plus any still active connection, even if it started before the window
         $subselect = $sql;
         $sql = " SELECT subselect.*, \n";
         $sql .= " networks.connection_limit_window, \n";
         $sql .= " networks.connection_limit_network_max_total_bytes, COALESCE(network_total_bytes>networks.connection_limit_network_max_total_bytes, false) AS network_total_bytes_exceeded_limit, \n";
         $sql .= " networks.connection_limit_node_max_total_bytes, COALESCE(node_total_bytes>networks.connection_limit_node_max_total_bytes, false) AS node_total_bytes_exceeded_limit, \n";
         $sql .= " networks.connection_limit_network_max_usage_duration, COALESCE(network_duration>networks.connection_limit_network_max_usage_duration, false) AS network_duration_exceeded_limit, \n";
         $sql .= " networks.connection_limit_node_max_usage_duration, COALESCE(node_duration>networks.connection_limit_node_max_usage_duration, false) AS node_duration_exceeded_limit \n";
         $sql .= " FROM ({$subselect}) AS subselect JOIN networks ON (network_id = '" . $network->getId() . "')";
         $db->execSqlUniqueRes($sql, $connection_limits_report, false);
         return $connection_limits_report;
     } else {
         return false;
     }
 }

 function getDisplayElements()
 {
     //This function is very expensive, cache the results
     if (!is_array($this->display_elements)) {
         $db = AbstractDb::getObject();
         // Init values
         $retval = array();
         $user = User::getCurrentUser();
         $redisplay_rows = null;
         $last_order_row = null;
         $element_rows = null;
         if ($user) {
             $user_id = $user->getId();
         } else {
             $user_id = '';
         }
         $node = Node::getCurrentNode();
         if ($node) {
             $node_id = $node->getId();
         } else {
             $node_id = '';
         }
         $display_num_elements = $this->getDisplayNumElements();
         /*  'ALWAYS' => "Content always rotates"
          *  'NEXT_DAY' => "Content rotates once per day"
          *  'NEXT_LOGIN' => "Content rotates once per session"
          *  'NEXT_NODE' => "Content rotates each time you change node"
          *  'NEVER' => "Content never rotates" */
         $content_changes_on_mode = $this->getContentChangesOnMode();
         $sql_time_restrictions = " AND (valid_from_timestamp IS NULL OR valid_from_timestamp <= CURRENT_TIMESTAMP) AND (valid_until_timestamp IS NULL OR valid_until_timestamp >= CURRENT_TIMESTAMP) \n";
         /** First, find if we have content to display again because we haven't passed the rotation period */
         $redisplay_objects = array();
         $sql_redisplay = null;
         if ($content_changes_on_mode != 'ALWAYS' && $content_changes_on_mode != 'NEVER') {
             $sql_redisplay .= "SELECT content_group_element_id FROM content_group_element \n";
             $sql_redisplay .= "JOIN content_display_log ON (content_group_element_id=content_id) \n";
             $sql_redisplay .= " WHERE content_group_id='{$this->id}' \n";
             $sql_redisplay .= $sql_time_restrictions;
             if ($content_changes_on_mode == 'NEXT_DAY') {
                 $sql_redisplay .= "AND date_trunc('day', last_display_timestamp) = date_trunc('day', CURRENT_DATE) \n";
             }
             if ($content_changes_on_mode == 'NEXT_LOGIN') {
                 /**@todo Must fix, this will fail if the user never really connected from a hotspot... */
                 $sql_redisplay .= "AND last_display_timestamp > (SELECT timestamp_in FROM connections WHERE user_id='{$user_id}' ORDER BY timestamp_in DESC LIMIT 1) \n";
             }
             if ($content_changes_on_mode == 'NEXT_NODE') {
                 /** We find the close time of the last connection from another node */
                 $sql_redisplay .= "AND last_display_timestamp > (SELECT timestamp_out FROM connections WHERE user_id='{$user_id}' AND node_id != '{$node_id}' ORDER BY timestamp_in DESC LIMIT 1) \n";
             }
             /* There usually won't be more than one, but if there is, we want the most recents */
             $sql_redisplay .= " ORDER BY last_display_timestamp DESC ";
             $db->execSql($sql_redisplay, $redisplay_rows, false);
             $redisplay_objects = array();
             if ($redisplay_rows != null) {
                 foreach ($redisplay_rows as $redisplay_row) {
                     $object = self::getObject($redisplay_row['content_group_element_id']);
                     if ($object->isDisplayableAt(Node::GetCurrentNode()) == true) {
                         $redisplay_objects[] = $object;
                     }
                 }
             }
             /* Pick the proper number of elements to be re-displayed */
             $redisplay_objects = array_slice($redisplay_objects, 0, $display_num_elements);
         }
         $new_objects = array();
         if (count($redisplay_objects) < $display_num_elements) {
             /* There aren't enough elements to redisplay, We need new content */
             /*'YES' => "Content can be shown more than once", 'NO' => "Content can only be shown once", 'ONCE_PER_NODE' => "Content can be shown more than once, but not at the same node"*/
             $allow_repeat = $this->getAllowRepeat();
             if ($allow_repeat == 'NO') {
                 $sql_repeat_join = " LEFT JOIN content_display_log ON (content_group_element_id = content_display_log.content_id AND content_display_log.user_id = '{$user_id}') \n";
                 $sql_repeat = " AND content_display_log.content_id  IS NULL \n";
             } elseif ($allow_repeat == 'ONCE_PER_NODE') {
                 $sql_repeat_join = " LEFT JOIN content_display_log ON (content_group_element_id = content_display_log.content_id AND content_display_log.user_id = '{$user_id}' AND content_display_log.node_id = '{$node_id}') \n";
                 $sql_repeat = " AND content_display_log.content_id  IS NULL \n";
             } else {
                 $sql_repeat_join = null;
                 $sql_repeat = null;
             }
             $sql = "SELECT content_group_element_id FROM content_group_element {$sql_repeat_join} WHERE content_group_id='{$this->id}' \n";
             $sql .= $sql_time_restrictions;
             $sql .= $sql_repeat;
             if ($sql_redisplay) {
                 //We don't want the same content twice...
                 $sql_repeat_redisplay = " AND content_group_element_id NOT IN ({$sql_redisplay}) \n";
                 $sql .= $sql_repeat_redisplay;
             }
             $content_ordering_mode = $this->getContentOrderingMode();
             if ($content_ordering_mode == 'SEQUENTIAL') {
                 $order_by = ' ORDER BY display_order ';
                 //Find the last content displayed
                 $sql_last_order = "SELECT display_order FROM content_group_element \n";
                 $sql_last_order .= "JOIN content_display_log ON (content_group_element_id=content_id) \n";
                 $sql_last_order .= " WHERE content_group_id='{$this->id}' \n";
                 $sql_last_order .= " AND user_id='{$user_id}' \n";
                 $sql_last_order .= " ORDER BY last_display_timestamp DESC LIMIT 1";
                 $db->execSqlUniqueRes($sql_last_order, $last_order_row, false);
                 if ($last_order_row['display_order'] != null) {
                     $last_order = $last_order_row['display_order'];
                 } else {
//.........这里部分代码省略.........

 /**
  * Add the content marked "everywhere" from both the current node and the
  * current network.
  *
  * @return void
  */
 private function addEverywhereContent()
 {
     $db = AbstractDb::getObject();
     // Get all network content and node "everywhere" content
     $content_rows = null;
     $node = Node::getCurrentNode();
     // Get all the parent objects of the node
     if ($node) {
         $parents = HotspotGraph::getAllParents($node);
     } else {
         $parents = array(Network::getCurrentNetwork()->getHgeId());
     }
     $first = $db->escapeString(array_shift($parents));
     $sql_from = "(SELECT content_id, display_area, display_order, subscribe_timestamp \n        \t\t\tFROM hotspot_graph_element_has_content hgehc \n        \t\t\tWHERE hotspot_graph_element_id='{$first}' AND display_page='everywhere')";
     // Get the contents for all elements parents of and including the node, but exclude user subscribed content if user is known
     foreach ($parents as $parentid) {
         $parent_id = $db->escapeString($parentid);
         $sql_from .= " UNION (SELECT content_id, display_area, display_order, subscribe_timestamp \n        \t\t\tFROM hotspot_graph_element_has_content hgehc \n        \t\t\tWHERE hotspot_graph_element_id='{$parent_id}' AND display_page='everywhere')";
     }
     $sql = "SELECT * FROM ({$sql_from}) AS content_everywhere ORDER BY display_area, display_order, subscribe_timestamp DESC";
     $db->execSql($sql, $content_rows, false);
     if ($content_rows) {
         foreach ($content_rows as $content_row) {
             $content = Content::getObject($content_row['content_id']);
             if ($content->isDisplayableAt($node)) {
                 $this->addContent($content_row['display_area'], $content, $content_row['display_order']);
             }
         }
     }
 }

 /**
  * Retreives the user interface of this object.
  *
  * Anything that overrides this method should call the parent method with
  * it's output at the END of processing.
  * @return string The HTML fragment for this interface
  */
 public function getUserUI()
 {
     // Init values
     $current_node = Node::getCurrentNode();
     $smarty = SmartyWifidog::getObject();
     $html = null;
     $user = User::getCurrentUser();
     if ($user) {
         if ($current_node) {
             $abuseControlReport = User::getAbuseControlConnectionHistory($user, null, $current_node);
             if ($abuseControlReport) {
                 //pretty_print_r($abuseControlReport);
                 $db = AbstractDb::getObject();
                 $html .= sprintf(_("During the last %s period, you transfered %s / %s and were connected %s / %s at this node.  Throughout the network, you transfered %s / %s and were connected %s / %s"), $abuseControlReport['connection_limit_window'] ? $db->GetIntervalStrFromDurationArray($db->GetDurationArrayFromIntervalStr($abuseControlReport['connection_limit_window'])) : _("Unknown"), self::formatSize($abuseControlReport['node_total_bytes']), $abuseControlReport['connection_limit_node_max_total_bytes'] ? self::formatSize($abuseControlReport['connection_limit_node_max_total_bytes']) : _("Unlimited"), $abuseControlReport['node_duration'] ? $db->GetIntervalStrFromDurationArray($db->GetDurationArrayFromIntervalStr($abuseControlReport['node_duration'])) : _("None"), $abuseControlReport['connection_limit_node_max_usage_duration'] ? $abuseControlReport['connection_limit_node_max_usage_duration'] : _("Unlimited"), self::formatSize($abuseControlReport['network_total_bytes']), $abuseControlReport['connection_limit_network_max_total_bytes'] ? self::formatSize($abuseControlReport['connection_limit_network_max_total_bytes']) : _("Unlimited"), $abuseControlReport['network_duration'] ? $db->GetIntervalStrFromDurationArray($db->GetDurationArrayFromIntervalStr($abuseControlReport['network_duration'])) : _("None"), $abuseControlReport['connection_limit_network_max_usage_duration'] ? $abuseControlReport['connection_limit_network_max_usage_duration'] : _("Unlimited"));
             } else {
                 $html .= _("Abuse control is currently disabled");
             }
         } else {
             $html .= _("Unable to retrieve node specific restrictions (you are not at a node)");
         }
         $this->setUserUIMainDisplayContent($html);
         return Content::getUserUI();
     }
 }

 /**
  * Logs out the user
  *
  * @param string $conn_id The connection id for the connection to work on.
  *                        If  it is not present, the behaviour depends if
  *                        the network supports multiple logins. If it does
  *                        not, all connections associated with the current
  *                        user will be destroyed. If it does, only the
  *                        connections tied to the current node will be
  *                        destroyed.
  *
  * @return void
  */
 public function logout($conn_id = null)
 {
     $db = AbstractDb::getObject();
     $session = Session::getObject();
     $conn_id = $db->escapeString($conn_id);
     if (!empty($conn_id)) {
         $db->execSqlUniqueRes("SELECT CURRENT_TIMESTAMP, *, CASE WHEN ((CURRENT_TIMESTAMP - reg_date) > networks.validation_grace_time) THEN true ELSE false END AS validation_grace_time_expired FROM connections JOIN users ON (users.user_id=connections.user_id) JOIN networks ON (users.account_origin = networks.network_id) WHERE connections.conn_id='{$conn_id}'", $info, false);
         $user = User::getObject($info['user_id']);
         $network = $user->getNetwork();
         $splash_user_id = $network->getSplashOnlyUser()->getId();
         $this->acctStop($conn_id);
     } else {
         $user = User::getCurrentUser();
         $network = $user->getNetwork();
         $splash_user_id = $network->getSplashOnlyUser()->getId();
         if ($splash_user_id != $user->getId() && ($node = Node::getCurrentNode())) {
             // Try to destroy all connections tied to the current node
             $sql = "SELECT conn_id FROM connections JOIN tokens USING (token_id) WHERE user_id = '{$user->getId()}' AND node_id='{$node->getId()}' AND token_status='" . TOKEN_INUSE . "';";
             $conn_rows = null;
             $db->execSql($sql, $conn_rows, false);
             if ($conn_rows) {
                 foreach ($conn_rows as $conn_row) {
                     $this->acctStop($conn_row['conn_id']);
                 }
             }
         }
     }
     if ($splash_user_id != $user->getId() && $network->getMultipleLoginAllowed() === false) {
         /*
          * The user isn't the splash_only user and the network config does
          * not allow multiple logins. Logging in with a new token implies
          * that all other active tokens should expire
          */
         $sql = "SELECT conn_id FROM connections JOIN tokens USING (token_id) WHERE user_id = '{$user->getId()}' AND token_status='" . TOKEN_INUSE . "';";
         $conn_rows = null;
         $db->execSql($sql, $conn_rows, false);
         if ($conn_rows) {
             foreach ($conn_rows as $conn_row) {
                 $this->acctStop($conn_row['conn_id']);
             }
         }
     }
     // Try to destroy current session
     // TODO:  This will not work if ultimately called from the gateway (ex: after abuse control was reached).  This creates a UI problem (the portal still shows the user as connected)
     if (method_exists($session, "destroy")) {
         $session->destroy();
     }
 }

 public function formatEvent($event, $info = null)
 {
     $dt = date("Y-m-d H:i:s (T)", $event->getTimestamp());
     $myFilename = $event->getFilename();
     $myLinenum = $event->getLinenum();
     // Get information about node
     $myCurrentNode = Node::getCurrentNode();
     if (empty($myCurrentNode)) {
         $myNodeName = '*nonode*';
     } else {
         $myNodeName = $myCurrentNode->getName();
     }
     // Get information about network
     $myNetwork = Network::getCurrentNetwork();
     if (empty($myNetwork)) {
         $myNetworkName = '*nonetwork*';
     } else {
         $myNetworkName = $myNetwork->getName();
     }
     // Get information about user
     $myCurrentUser = User::getCurrentUser();
     if (empty($myCurrentUser)) {
         $myUserName = '*nouser*';
     } else {
         $myUserName = $myCurrentUser->getUsername();
     }
     $string = "{$dt} " . EventObject::PrettyErrorType($event->getLayoutType()) . " >{$myNetworkName} >{$myUserName}@{$myNodeName} [" . $_SERVER['REQUEST_URI'] . "]" . ": " . $event->getMessage() . (!empty($myFilename) ? " in {$myFilename}" . (!empty($myLinenum) ? " on line {$myLinenum}" : "") : "") . "\n";
     if ($event->classifyErrorType() == 'error') {
         $string .= "   Stack Backtrace\n" . self::FormatBacktrace($event->getContext()) . "\n";
     }
     return $string;
 }