Wireless Leiden Interactive Nodemap 2.0
1
Wireless Leiden Interactive Nodemap 2.0
Nodes
Nodes from the Wireless Leiden network
4.490153
52.161087
5
0
0
500
%NODESCONTENT%
Lines
Lines from nodes to nodes from the Wireless Leiden network
4.490153
52.161087
5
0
0
500
%LINESCONTENT%
';
// First line of the status file must be like this:
static $fileFirst = 'type,host_name,has_been_checked,check_execution_time,current_state,last_hard_state,last_check,problem_has_been_acknowledged';
// Every following line will be checked using these functions
private $fileContent = array('string', 'string', 'int', 'double', 'int', 'int', 'int', 'int');
private $KMLNodes;
private $KMLLines;
/*
* Function: __construct (constructor)
* Description: Creating a new KMLFile
* Parameters: -
* Returns: -
*/
public function __construct() {
$this->KMLNodes = array();
$this->KMLLines = array();
}
/*
* Function: addNode
* Description: Add a node to the local node array
* Parameters: KMLNode $node
* Returns: -
*/
public function addNode(KMLNode $node) {
$this->KMLNodes[] = $node;
}
/*
* Function: addLIne
* Description: Add a line to the local line array
* Parameters: KMLLine $line
* Returns: -
*/
public function addLine(KMLLine $line) {
$this->KMLLines[] = $line;
}
/*
* Function: toString
* Description: Converts the content of this file and the placemarks to a KML valid string
* Parameters: -
* Returns: KML valid string
*/
public function toString() {
global $config;
$toString = $this->template;
$nodeString = '';
$nodeCount = count($this->KMLNodes);
for ($i = 0; $i < $nodeCount; $i++) {
$nodeString .= $this->KMLNodes[$i]->toString();
}
$lineString = '';
$lineCount = count($this->KMLLines);
for ($i = 0; $i < $lineCount; $i++) {
$lineString .= $this->KMLLines[$i]->toString();
}
$toString = str_replace('%NODE_GREEN%', $config['node_green'], $toString);
$toString = str_replace('%NODE_ORANGE%', $config['node_orange'], $toString);
$toString = str_replace('%NODE_RED%', $config['node_red'], $toString);
$toString = str_replace('%LINE_BLACK%', $config['line_black'], $toString);
$toString = str_replace('%NODESCONTENT%', $nodeString, $toString);
$toString = str_replace('%LINESCONTENT%', $lineString, $toString);
return $toString;
}
/*
* Function: write
* Description: Write KMLFile to a KML file
* Parameters: string $filename
* Returns: true if we can write to the file, otherwise false
*/
public function write($filename) {
// TODO: David: Needs to be placed in FileHandler.class.php. Here we just want to call our file handler.
trigger_log(SYSLOG_DEBUG, 'Opening the file "' . $filename . '"', __FILE__, __LINE__);
$file = new FileHandler($filename, 'w')
or trigger_log(SYSLOG_ERR, 'Opening the file "' . $filename . '"', __FILE__, __LINE__);
trigger_log(SYSLOG_DEBUG, 'Writing file "' . $filename . '"', __FILE__, __LINE__);
$file->write($file,$this->toString());
trigger_log(SYSLOG_DEBUG, 'Closing file "' . $filename . '"', __FILE__, __LINE__);
fclose($file);
}
/*
* Function: getNodeByName
* Description: Find the first KMLNode with the name $name and return its position. If not found, return false
* Parameters: string $name
* Returns: Position of node in our array, if not found false
*/
public function getNodeByName($name) {
$nodesCount = count($this->KMLNodes);
for ($i = 0; $i < $nodesCount; $i++) {
if ($this->KMLNodes[$i]->getName() == $name) {
return $i;
}
}
return false;
}
/*
* Function: parseLocationFile
* Description: Parse the node location file updating or adding KMLNode objects to the current KMLFile object
* Parameters: string $file
* Returns: true is successfull, otherwise false
*/
public function parseLocationFile($file) {
$nodesCount = preg_match_all('/\[[a-zA-Z0-9]*\]/i', $file, $nodes, PREG_OFFSET_CAPTURE);
for ($i = 0; $i < $nodesCount; $i++) {
// Looking for "location" of the node
if (!$location = $this->findInLocationFile($file, 'location', $nodes[0][$i][1])) {
trigger_log(SYSLOG_WARNING, 'Could not find the "location" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
continue;
}
// Looking for "status" of the node
if (!$status = $this->findInLocationFile($file, 'status', $nodes[0][$i][1])) {
trigger_log(SYSLOG_WARNING, 'Could not find the "status" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
continue;
}
// Looking for "latitude" of the node
if (!$latitude = $this->findInLocationFile($file, 'latitude', $nodes[0][$i][1])) {
trigger_log(SYSLOG_WARNING, 'Could not find the "latitude" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
continue;
}
// Looking for "longitude" of the node
if (!$longitude = $this->findInLocationFile($file, 'longitude', $nodes[0][$i][1])) {
trigger_log(SYSLOG_WARNING, 'Could not find the "longitude" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
continue;
}
// Looking for "interfaces" of the node
if (!$interfaces = $this->findInLocationFile($file, 'interfaces', $nodes[0][$i][1])) {
trigger_log(SYSLOG_WARNING, 'Could not find the "interfaces" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
continue;
}
// Looking for "masterip" of the node
if (!$masterip = $this->findInLocationFile($file, 'masterip', $nodes[0][$i][1])) {
trigger_log(SYSLOG_WARNING, 'Could not find the "masterip" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
continue;
}
// Looking for "nodetype" of the node
if (!$nodetype = $this->findInLocationFile($file, 'nodetype', $nodes[0][$i][1])) {
trigger_log(SYSLOG_WARNING, 'Could not find the "nodetype" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
continue;
}
// Looking for "name" of the node
if (!$name = $this->findInLocationFile($file, 'name', $nodes[0][$i][1])) {
trigger_log(SYSLOG_WARNING, 'Could not find the "name" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
continue;
}
// Creating a string with the complete description of the node using all data in the location file
$descriptionLocation = 'Naam: ' . $name . '
Locatie: ' . $location . '
Status: ' . $status . '
Latitude: ' . $latitude . '
Longitude: ' . $longitude . '
Interfaces: ' . $interfaces . '
Master IP: ' . $masterip . '
Node type: ' . $nodetype . '
';
if ($placemarkPosition = $this->getNodeByName($name)) {
// Updating an excisting placemark
$this->KMLNodes[$placemarkPosition]->setDescriptionLocation($descriptionLocation);
$this->KMLNodes[$placemarkPosition]->setLongitude($longitude);
$this->KMLNodes[$placemarkPosition]->setLatitude($latitude);
} else {
// Adding a new placemark
$placemark = new KMLNode();
$placemark->setID($name);
$placemark->setName($name);
$placemark->setDescriptionLocation($descriptionLocation);
$placemark->setLongitude($longitude);
$placemark->setLatitude($latitude);
$this->addNode($placemark);
}
}
}
/*
* Function: findInLocationFile
* Description: Find the $keyword in $file and return the value of $keyword, starting at $offset
* Parameters: string $file, string $keyword, integer $offset
* Returns: The value of the keyword if found, otherwise return false
*/
private function findInLocationFile($file, $keyword, $offset) {
$start = strpos($file, $keyword, $offset) + strlen($keyword . ' = ');
$end = strpos($file, "\n", $start);
if ($start && $end && ($start < $end)) {
return substr($file, $start, $end - $start);
} else {
return false;
}
}
/*
* Function: parseStatusFile
* Description: Parse the node status file updating or adding KMLNode objects to the current KMLFile object
* Parameters: string $file
* Returns: true is successfull, otherwise false
*/
public function parseStatusFile($file) {
$fileContents = explode("\r\n", $file);
if ($fileContents[0] != KMLFile::$fileFirst) {
trigger_log(SYSLOG_WARNING, 'Contents of file do not match with template of first line', __FILE__, __LINE__);
}
// For loop for all the lines in the file. Skipping first line (headers) and last line (blank)
$linesCount = count($fileContents);
for ($i = 1; $i < $linesCount - 1; $i++) {
$lineContent = explode(',', $fileContents[$i]);
if (count($lineContent) != count($this->fileContent)) {
trigger_log(LOG_WARNING, 'Contents of the file do not match with template of lines on line "' . $i . '"', __FILE__, __LINE__);
continue;
}
// Checking for valid entries on this line
for ($j = 0; $j < 8; $j++) {
try {
switch ($this->fileContent[$j]) {
case 'string':
$lineContent[$j] = (string) $lineContent[$j];
break;
case 'int':
$lineContent[$j] = (int) $lineContent[$j];
break;
case 'double':
$lineContent[$j] = (double) $lineContent[$j];
break;
default:
break;
}
} catch (Exception $err) {
trigger_log(SYSLOG_WARNING, 'The value "' . $j . '" on line "' . $i . '" is not valid, skipping to next line', __FILE__, __LINE__);
continue;
}
}
// Creating a string with the complete description of the node using all data in the status file
$descriptionStatus = 'Type: ' . $lineContent[0] . '
Host name: ' . $lineContent[1] . '
Has been checked: ' . $lineContent[2] . '
Check execution time: ' . $lineContent[3] . '
Currenr state: ' . $lineContent[4] . '
Last hard state: ' . $lineContent[5] . '
Last check: ' . $lineContent[6] . '
Problem has been acknowledged: ' . $lineContent[7] . '
';
if ($placemarkPosition = $this->getNodeByName($lineContent[1])) {
// Updating an excisting placemark
$this->KMLNodes[$placemarkPosition]->setDescriptionStatus($descriptionStatus);
} else {
// Adding a new placemark
$placemark = new KMLNode();
$placemark->setID($lineContent[1]);
$placemark->setName($lineContent[1]);
$placemark->setDescriptionStatus($descriptionStatus);
$this->addNode($placemark);
}
}
}
}
?>