| 1 | <?php
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| 2 | /*
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| 3 | * Project: NodeMap2.0
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| 4 | * File: KMLHandler.class.php
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| 5 | * Purpose: Creating of editing KML files
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| 6 | */
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| 7 |
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| 8 | class KMLFile {
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| 9 | private $template = '
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| 10 | <kml xmlns="http://www.opengis.net/kml/2.2">
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| 11 | <Document>
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| 12 | <name>Wireless Leiden Interactive Nodemap 2.0</name>
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| 13 | <open>1</open>
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| 14 | <description>Wireless Leiden Interactive Nodemap 2.0</description>
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| 15 | <Style id="greenArrowIcon">
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| 16 | <IconStyle>
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| 17 | <Icon>
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| 18 | <href>%PLACEMARK_GREEN%</href>
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| 19 | </Icon>
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| 20 | </IconStyle>
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| 21 | </Style>
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| 22 | <Style id="orangeArrowIcon">
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| 23 | <IconStyle>
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| 24 | <Icon>
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| 25 | <href>%PLACEMARK_ORANGE%</href>
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| 26 | </Icon>
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| 27 | </IconStyle>
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| 28 | </Style>
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| 29 | <Style id="redArrowIcon">
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| 30 | <IconStyle>
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| 31 | <Icon>
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| 32 | <href>%PLACEMARK_RED%</href>
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| 33 | </Icon>
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| 34 | </IconStyle>
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| 35 | </Style>
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| 36 | <Folder>
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| 37 | <name>Nodes</name>
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| 38 | <description>Nodes from the Wireless Leiden network</description>
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| 39 | <LookAt>
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| 40 | <longitude>52.161087</longitude>
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| 41 | <latitude>4.490153</latitude>
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| 42 | <altitude>0</altitude>
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| 43 | <heading>0</heading>
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| 44 | <tilt>0</tilt>
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| 45 | <range>500</range>
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| 46 | </LookAt>
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| 47 | %CONTENT%
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| 48 | </Folder>
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| 49 | </Document>
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| 50 | </kml>';
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| 51 |
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| 52 | // First line of the status file must be like this:
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| 53 | static $fileFirst = 'type,host_name,has_been_checked,check_execution_time,current_state,last_hard_state,last_check,problem_has_been_acknowledged';
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| 54 | // Every following line will be checked using these functions
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| 55 | private $fileContent = array('string', 'string', 'int', 'double', 'int', 'int', 'int', 'int');
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| 56 |
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| 57 | private $KMLPlacemarks;
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| 58 |
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| 59 | /*
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| 60 | * Function: __construct (constructor)
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| 61 | * Description: Creating a new KMLFile
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| 62 | * Parameters: -
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| 63 | * Returns: -
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| 64 | */
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| 65 | public function __construct() {
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| 66 | $this->KMLPlacemarks = array();
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| 67 | }
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| 68 |
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| 69 | /*
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| 70 | * Function: addPlacemark
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| 71 | * Description: Add a placemark to the local placemark array
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| 72 | * Parameters: KMLPlacemark $placemark
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| 73 | * Returns: -
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| 74 | */
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| 75 | public function addPlacemark(KMLPlacemark $placemark) {
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| 76 | $this->KMLPlacemarks[] = $placemark;
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| 77 | }
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| 78 |
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| 79 | /*
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| 80 | * Function: toString
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| 81 | * Description: Converts the content of this file and the placemarks to a KML valid string
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| 82 | * Parameters: -
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| 83 | * Returns: KML valid string
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| 84 | */
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| 85 | public function toString() {
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| 86 | global $config;
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| 87 |
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| 88 | $toString = $this->template;
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| 89 |
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| 90 | $placemarkString = '';
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| 91 | $placemarkCount = count($this->KMLPlacemarks);
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| 92 | for ($i = 0; $i < $placemarkCount; $i++) {
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| 93 | $placemarkString .= $this->KMLPlacemarks[$i]->toString();
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| 94 | }
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| 95 |
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| 96 | $toString = str_replace('%PLACEMARK_GREEN%', $config['placemark_green'], $toString);
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| 97 | $toString = str_replace('%PLACEMARK_ORANGE%', $config['placemark_orange'], $toString);
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| 98 | $toString = str_replace('%PLACEMARK_RED%', $config['placemark_red'], $toString);
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| 99 | $toString = str_replace('%CONTENT%', $placemarkString, $toString);
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| 100 |
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| 101 | return $toString;
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| 102 | }
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| 103 |
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| 104 | /*
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| 105 | * Function: write
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| 106 | * Description: Write KMLFile to a KML file
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| 107 | * Parameters: string $filename
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| 108 | * Returns: true if we can write to the file, otherwise false
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| 109 | */
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| 110 | public function write($filename) {
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| 111 | // TODO: David: Needs to be placed in FileHandler.class.php. Here we just want to call our file handler.
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| 112 |
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| 113 | trigger_log(SYSLOG_DEBUG, 'Opening the file "' . $filename . '"', __FILE__, __LINE__);
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| 114 | $file = fopen("$filename","w")
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| 115 | or exit(trigger_log(SYSLOG_ERR, 'Opening the file "' . $filename . '"', __FILE__, __LINE__));
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| 116 |
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| 117 | trigger_log(SYSLOG_DEBUG, 'Writing file "' . $filename . '"', __FILE__, __LINE__);
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| 118 | fwrite($file,$toString());
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| 119 |
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| 120 | trigger_log(SYSLOG_DEBUG, 'Closing file "' . $filename . '"', __FILE__, __LINE__);
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| 121 | fclose($file);
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| 122 | }
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| 123 |
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| 124 | /*
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| 125 | * Function: getPlacemarkByName
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| 126 | * Description: Find the first KMLPlacemark with the name $name and return its position. If not found, return false
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| 127 | * Parameters: string $name
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| 128 | * Returns: Position of placemark in our array, if not found false
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| 129 | */
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| 130 | public function getPlacemarkByName($name) {
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| 131 | $nodesCount = count($this->KMLPlacemarks);
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| 132 | for ($i = 0; $i < $nodesCount; $i++) {
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| 133 | if ($this->KMLPlacemarks[$i]->getName() == $name) {
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| 134 | return $i;
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| 135 | }
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| 136 | }
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| 137 |
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| 138 | return false;
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| 139 | }
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| 140 |
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| 141 | /*
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| 142 | * Function: parseLocationFile
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| 143 | * Description: Parse the node location file updating or adding KMLPlacemark objects to the current KMLFile object
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| 144 | * Parameters: string $file
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| 145 | * Returns: true is successfull, otherwise false
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| 146 | */
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| 147 | public function parseLocationFile($file) {
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| 148 | $nodesCount = preg_match_all('/\[[a-zA-Z0-9]*\]/i', $file, $nodes, PREG_OFFSET_CAPTURE);
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| 149 | for ($i = 0; $i < $nodesCount; $i++) {
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| 150 | // Looking for "location" of the node
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| 151 | if (!$location = $this->findInLocationFile($file, 'location', $nodes[0][$i][1])) {
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| 152 | trigger_log(SYSLOG_WARNING, 'Could not find the "location" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
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| 153 | continue;
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| 154 | }
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| 155 | // Looking for "status" of the node
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| 156 | if (!$status = $this->findInLocationFile($file, 'status', $nodes[0][$i][1])) {
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| 157 | trigger_log(SYSLOG_WARNING, 'Could not find the "status" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
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| 158 | continue;
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| 159 | }
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| 160 | // Looking for "latitude" of the node
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| 161 | if (!$latitude = $this->findInLocationFile($file, 'latitude', $nodes[0][$i][1])) {
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| 162 | trigger_log(SYSLOG_WARNING, 'Could not find the "latitude" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
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| 163 | continue;
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| 164 | }
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| 165 | // Looking for "longitude" of the node
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| 166 | if (!$longitude = $this->findInLocationFile($file, 'longitude', $nodes[0][$i][1])) {
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| 167 | trigger_log(SYSLOG_WARNING, 'Could not find the "longitude" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
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| 168 | continue;
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| 169 | }
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| 170 | // Looking for "interfaces" of the node
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| 171 | if (!$interfaces = $this->findInLocationFile($file, 'interfaces', $nodes[0][$i][1])) {
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| 172 | trigger_log(SYSLOG_WARNING, 'Could not find the "interfaces" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
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| 173 | continue;
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| 174 | }
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| 175 | // Looking for "masterip" of the node
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| 176 | if (!$masterip = $this->findInLocationFile($file, 'masterip', $nodes[0][$i][1])) {
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| 177 | trigger_log(SYSLOG_WARNING, 'Could not find the "masterip" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
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| 178 | continue;
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| 179 | }
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| 180 | // Looking for "nodetype" of the node
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| 181 | if (!$nodetype = $this->findInLocationFile($file, 'nodetype', $nodes[0][$i][1])) {
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| 182 | trigger_log(SYSLOG_WARNING, 'Could not find the "nodetype" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
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| 183 | continue;
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| 184 | }
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| 185 | // Looking for "name" of the node
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| 186 | if (!$name = $this->findInLocationFile($file, 'name', $nodes[0][$i][1])) {
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| 187 | trigger_log(SYSLOG_WARNING, 'Could not find the "name" of node "' . $i . '", skipping to next', __FILE__, __LINE__);
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| 188 | continue;
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| 189 | }
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| 190 |
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| 191 | // Creating a string with the complete description of the node using all data in the location file
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| 192 | $descriptionLocation = 'Naam: ' . $name . '<br/>Locatie: ' . $location . '<br/>Status: ' . $status . '<br/>Latitude: ' . $latitude . '<br/>Longitude: ' . $longitude . '<br/>Interfaces: ' . $interfaces . '<br/>Master IP: ' . $masterip . '<br/>Node type: ' . $nodetype . '<br/><br/>';
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| 193 |
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| 194 | if ($placemarkPosition = $this->getPlacemarkByName($name)) {
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| 195 | // Updating an excisting placemark
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| 196 | $this->KMLPlacemarks[$placemarkPosition]->setDescriptionLocation($descriptionLocation);
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| 197 | $this->KMLPlacemarks[$placemarkPosition]->setLongitude($longitude);
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| 198 | $this->KMLPlacemarks[$placemarkPosition]->setLatitude($latitude);
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| 199 | } else {
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| 200 | // Adding a new placemark
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| 201 | $placemark = new KMLPlacemark();
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| 202 | $placemark->setID($name);
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| 203 | $placemark->setName($name);
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| 204 | $placemark->setDescriptionLocation($descriptionLocation);
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| 205 | $placemark->setLongitude($longitude);
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| 206 | $placemark->setLatitude($latitude);
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| 207 | $this->addPlacemark($placemark);
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| 208 | }
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| 209 | }
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| 210 | }
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| 211 |
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| 212 | /*
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| 213 | * Function: findInLocationFile
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| 214 | * Description: Find the $keyword in $file and return the value of $keyword, starting at $offset
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| 215 | * Parameters: string $file, string $keyword, integer $offset
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| 216 | * Returns: The value of the keyword if found, otherwise return false
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| 217 | */
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| 218 | private function findInLocationFile($file, $keyword, $offset) {
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| 219 | $start = strpos($file, $keyword, $offset) + strlen($keyword . ' = ');
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| 220 | $end = strpos($file, "\n", $start);
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| 221 |
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| 222 | if ($start && $end && ($start < $end)) {
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| 223 | return substr($file, $start, $end - $start);
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| 224 | } else {
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| 225 | return false;
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| 226 | }
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| 227 | }
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| 228 |
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| 229 | /*
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| 230 | * Function: parseStatusFile
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| 231 | * Description: Parse the node status file updating or adding KMLPlacemark objects to the current KMLFile object
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| 232 | * Parameters: string $file
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| 233 | * Returns: true is successfull, otherwise false
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| 234 | */
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| 235 | public function parseStatusFile($file) {
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| 236 | $fileContents = explode("\r\n", $file);
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| 237 |
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| 238 | if ($fileContents[0] != KMLFile::$fileFirst) {
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| 239 | trigger_log(SYSLOG_WARNING, 'Contents of file do not match with template of first line', __FILE__, __LINE__);
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| 240 | }
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| 241 |
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| 242 | // For loop for all the lines in the file. Skipping first line (headers) and last line (blank)
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| 243 | $linesCount = count($fileContents);
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| 244 | for ($i = 1; $i < $linesCount - 1; $i++) {
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| 245 | $lineContent = explode(',', $fileContents[$i]);
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| 246 |
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| 247 | if (count($lineContent) != count($this->fileContent)) {
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| 248 | trigger_log(LOG_WARNING, 'Contents of the file do not match with template of lines on line "' . $i . '"', __FILE__, __LINE__);
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| 249 | continue;
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| 250 | }
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| 251 |
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| 252 | // Checking for valid entries on this line
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| 253 | for ($j = 0; $j < 8; $j++) {
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| 254 | try {
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| 255 | switch ($this->fileContent[$j]) {
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| 256 | case 'string':
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| 257 | $lineContent[$j] = (string) $lineContent[$j];
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| 258 | break;
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| 259 | case 'int':
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| 260 | $lineContent[$j] = (int) $lineContent[$j];
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| 261 | break;
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| 262 | case 'double':
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| 263 | $lineContent[$j] = (double) $lineContent[$j];
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| 264 | break;
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| 265 | default:
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| 266 | break;
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| 267 | }
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| 268 | } catch (Exception $err) {
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| 269 | trigger_log(SYSLOG_WARNING, 'The value "' . $j . '" on line "' . $i . '" is not valid, skipping to next line', __FILE__, __LINE__);
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| 270 | continue;
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| 271 | }
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| 272 | }
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| 273 |
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| 274 | // Creating a string with the complete description of the node using all data in the status file
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| 275 | $descriptionStatus = 'Type: ' . $lineContent[0] . '<br/>Host name: ' . $lineContent[1] . '<br/>Has been checked: ' . $lineContent[2] . '<br/>Check execution time: ' . $lineContent[3] . '<br/>Currenr state: ' . $lineContent[4] . '<br/>Last hard state: ' . $lineContent[5] . '<br/>Last check: ' . $lineContent[6] . '<br/>Problem has been acknowledged: ' . $lineContent[7] . '<br/><br/>';
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| 276 |
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| 277 | if ($placemarkPosition = $this->getPlacemarkByName($lineContent[1])) {
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| 278 | // Updating an excisting placemark
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| 279 | $this->KMLPlacemarks[$placemarkPosition]->setDescriptionStatus($descriptionStatus);
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| 280 | } else {
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| 281 | // Adding a new placemark
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| 282 | $placemark = new KMLPlacemark();
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| 283 | $placemark->setID($lineContent[1]);
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| 284 | $placemark->setName($lineContent[1]);
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| 285 | $placemark->setDescriptionStatus($descriptionStatus);
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| 286 | $this->addPlacemark($placemark);
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| 287 | }
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| 288 | }
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| 289 | }
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| 290 | }
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| 291 | ?>
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