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<?php
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/*
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* Copyright (C) 2019 Alexander Marston (alexander.marston@gmail.com)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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class vnStat {
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protected $executablePath;
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protected $vnstatVersion;
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protected $vnstatJsonVersion;
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protected $vnstatData;
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public function __construct ($executablePath) {
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if (isset($executablePath)) {
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$this->executablePath = $executablePath;
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// Execute a command to output a json dump of the vnstat data
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$vnstatStream = popen("$this->executablePath --json", 'r');
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// Is the stream valid?
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if (is_resource($vnstatStream)) {
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$streamBuffer = '';
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while (!feof($vnstatStream)) {
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$streamBuffer .= fgets($vnstatStream);
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}
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// Close the handle
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pclose($vnstatStream);
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$this->processVnstatData($streamBuffer);
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} else {
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}
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} else {
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die();
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}
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}
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private function processVnstatData($vnstatJson) {
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$decodedJson = json_decode($vnstatJson, true);
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// Check the JSON is valid
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if (json_last_error() != JSON_ERROR_NONE) {
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throw new Exception('JSON is invalid');
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}
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$this->vnstatData = $decodedJson;
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$this->vnstatVersion = $decodedJson['vnstatversion'];
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$this->vnstatJsonVersion = $decodedJson['jsonversion'];
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}
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public function getVnstatVersion() {
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return $this->vnstatVersion;
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}
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public function getVnstatJsonVersion() {
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return $this->vnstatJsonVersion;
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}
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public function getInterfaces() {
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// Create a placeholder array
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$vnstatInterfaces = [];
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foreach($this->vnstatData['interfaces'] as $interface) {
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if ($this->vnstatJsonVersion == 1) {
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array_push($vnstatInterfaces, $interface['id']);
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} else {
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array_push($vnstatInterfaces, $interface['name']);
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}
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}
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return $vnstatInterfaces;
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}
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public function getInterfaceData($timeperiod, $type, $interface) {
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// If json version equals 1, add an 's' onto the end of each type.
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// e.g. 'top' becomes 'tops'
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$typeAppend = '';
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if ($this->vnstatJsonVersion == 1) {
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$typeAppend = 's';
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}
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// Blank placeholder
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$trafficData = [];
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$i = -1;
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// Get the array index for the chosen interface
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if ($this->vnstatJsonVersion == 1) {
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$arrayIndex = array_search($interface, array_column($this->vnstatData['interfaces'], 'id'));
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} else {
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$arrayIndex = array_search($interface, array_column($this->vnstatData['interfaces'], 'name'));
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}
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if ($timeperiod == 'top10') {
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if ($type == 'table') {
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foreach ($this->vnstatData['interfaces'][$arrayIndex]['traffic']['top'.$typeAppend] as $traffic) {
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if (is_array($traffic)) {
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$i++;
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$trafficData[$i]['label'] = date('d/m/Y', strtotime($traffic['date']['month'] . "/" . $traffic['date']['day'] . "/" . $traffic['date']['year']));;
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$trafficData[$i]['rx'] = formatSize($traffic['rx'], $this->vnstatJsonVersion);
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$trafficData[$i]['tx'] = formatSize($traffic['tx'], $this->vnstatJsonVersion);
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$trafficData[$i]['total'] = formatSize(($traffic['rx'] + $traffic['tx']), $this->vnstatJsonVersion);
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$trafficData[$i]['totalraw'] = ($traffic['rx'] + $traffic['tx']);
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}
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}
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}
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}
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if (($this->vnstatJsonVersion > 1) && ($timeperiod == 'five')) {
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if ($type == 'table') {
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foreach ($this->vnstatData['interfaces'][$arrayIndex]['traffic']['fiveminute'] as $traffic) {
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if (is_array($traffic)) {
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$i++;
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$trafficData[$i]['label'] = date("d/m/Y H:i", mktime($traffic['time']['hour'], $traffic['time']['minute'], 0, $traffic['date']['month'], $traffic['date']['day'], $traffic['date']['year']));
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$trafficData[$i]['time'] = mktime($traffic['time']['hour'], $traffic['time']['minute'], 0, $traffic['date']['month'], $traffic['date']['day'], $traffic['date']['year']);
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$trafficData[$i]['rx'] = formatSize($traffic['rx'], $this->vnstatJsonVersion);
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$trafficData[$i]['tx'] = formatSize($traffic['tx'], $this->vnstatJsonVersion);
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$trafficData[$i]['total'] = formatSize(($traffic['rx'] + $traffic['tx']), $this->vnstatJsonVersion);
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}
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}
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} else if ($type == 'graph') {
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foreach ($this->vnstatData['interfaces'][$arrayIndex]['traffic']['fiveminute'] as $traffic) {
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if (is_array($traffic)) {
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$i++;
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$trafficData[$i]['label'] = sprintf("Date(%d, %d, %d, %d, %d)", $traffic['date']['year'], $traffic['date']['month']-1, $traffic['date']['day'], $traffic['time']['hour'], $traffic['time']['minute']);
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$trafficData[$i]['time'] = mktime($traffic['time']['hour'], $traffic['time']['minute'], 0, $traffic['date']['month'], $traffic['date']['day'], $traffic['date']['year']);
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$trafficData[$i]['rx'] = kibibytesToBytes($traffic['rx'], $this->vnstatJsonVersion);
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$trafficData[$i]['tx'] = kibibytesToBytes($traffic['tx'], $this->vnstatJsonVersion);
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$trafficData[$i]['total'] = kibibytesToBytes(($traffic['rx'] + $traffic['tx']), $this->vnstatJsonVersion);
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}
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}
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}
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}
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if ($timeperiod == 'hourly') {
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if ($type == 'table') {
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foreach ($this->vnstatData['interfaces'][$arrayIndex]['traffic']['hour'.$typeAppend] as $traffic) {
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if (is_array($traffic)) {
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$i++;
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if ($this->vnstatJsonVersion == 1) {
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$hour = $traffic['id'];
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} else {
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$hour = $traffic['time']['hour'];
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}
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$trafficData[$i]['label'] = date("d/m/Y H:i", mktime($hour, 0, 0, $traffic['date']['month'], $traffic['date']['day'], $traffic['date']['year']));
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$trafficData[$i]['time'] = mktime($hour, 0, 0, $traffic['date']['month'], $traffic['date']['day'], $traffic['date']['year']);
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$trafficData[$i]['rx'] = formatSize($traffic['rx'], $this->vnstatJsonVersion);
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$trafficData[$i]['tx'] = formatSize($traffic['tx'], $this->vnstatJsonVersion);
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$trafficData[$i]['total'] = formatSize(($traffic['rx'] + $traffic['tx']), $this->vnstatJsonVersion);
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}
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}
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} else if ($type == 'graph') {
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foreach ($this->vnstatData['interfaces'][$arrayIndex]['traffic']['hour'.$typeAppend] as $traffic) {
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if (is_array($traffic)) {
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$i++;
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if ($this->vnstatJsonVersion == 1) {
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$hour = $traffic['id'];
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} else {
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$hour = $traffic['time']['hour'];
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}
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$trafficData[$i]['label'] = sprintf("Date(%d, %d, %d, %d)", $traffic['date']['year'], $traffic['date']['month']-1, $traffic['date']['day'], $hour);
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$trafficData[$i]['time'] = mktime($hour, 0, 0, $traffic['date']['month'], $traffic['date']['day'], $traffic['date']['year']);
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$trafficData[$i]['rx'] = kibibytesToBytes($traffic['rx'], $this->vnstatJsonVersion);
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$trafficData[$i]['tx'] = kibibytesToBytes($traffic['tx'], $this->vnstatJsonVersion);
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$trafficData[$i]['total'] = kibibytesToBytes(($traffic['rx'] + $traffic['tx']), $this->vnstatJsonVersion);
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}
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}
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}
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}
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if ($timeperiod == 'daily') {
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if ($type == 'table') {
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foreach ($this->vnstatData['interfaces'][$arrayIndex]['traffic']['day'.$typeAppend] as $traffic) {
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if (is_array($traffic)) {
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$i++;
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$trafficData[$i]['label'] = date('d/m/Y', mktime(0, 0, 0, $traffic['date']['month'], $traffic['date']['day'], $traffic['date']['year']));
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$trafficData[$i]['time'] = mktime(0, 0, 0, $traffic['date']['month'], $traffic['date']['day'], $traffic['date']['year']);
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$trafficData[$i]['rx'] = formatSize($traffic['rx'], $this->vnstatJsonVersion);
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$trafficData[$i]['tx'] = formatSize($traffic['tx'], $this->vnstatJsonVersion);
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$trafficData[$i]['total'] = formatSize(($traffic['rx'] + $traffic['tx']), $this->vnstatJsonVersion);
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}
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}
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} else if ($type == 'graph') {
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foreach ($this->vnstatData['interfaces'][$arrayIndex]['traffic']['day'.$typeAppend] as $traffic) {
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if (is_array($traffic)) {
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$i++;
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$trafficData[$i]['label'] = sprintf("Date(%d, %d, %d)", $traffic['date']['year'], $traffic['date']['month']-1, $traffic['date']['day']);
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$trafficData[$i]['time'] = mktime(0, 0, 0, $traffic['date']['month'], $traffic['date']['day'], $traffic['date']['year']);
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$trafficData[$i]['rx'] = kibibytesToBytes($traffic['rx'], $this->vnstatJsonVersion);
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$trafficData[$i]['tx'] = kibibytesToBytes($traffic['tx'], $this->vnstatJsonVersion);
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$trafficData[$i]['total'] = kibibytesToBytes(($traffic['rx'] + $traffic['tx']), $this->vnstatJsonVersion);
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}
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}
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}
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}
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if ($timeperiod == 'monthly') {
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if ($type == 'table') {
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foreach ($this->vnstatData['interfaces'][$arrayIndex]['traffic']['month'.$typeAppend] as $traffic) {
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if (is_array($traffic)) {
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$i++;
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$trafficData[$i]['label'] = date('F Y', mktime(0, 0, 0, $traffic['date']['month'], 10, $traffic['date']['year']));
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$trafficData[$i]['time'] = mktime(0, 0, 0, $traffic['date']['month'], 10, $traffic['date']['year']);
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$trafficData[$i]['rx'] = formatSize($traffic['rx'], $this->vnstatJsonVersion);
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$trafficData[$i]['tx'] = formatSize($traffic['tx'], $this->vnstatJsonVersion);
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$trafficData[$i]['total'] = formatSize(($traffic['rx'] + $traffic['tx']), $this->vnstatJsonVersion);
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}
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}
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} else if ($type == 'graph') {
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foreach ($this->vnstatData['interfaces'][$arrayIndex]['traffic']['month'.$typeAppend] as $traffic) {
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if (is_array($traffic)) {
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$i++;
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$trafficData[$i]['label'] = sprintf("Date(%d, %d, %d)", $traffic['date']['year'], $traffic['date']['month'] - 1, 10);
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$trafficData[$i]['time'] = mktime(0, 0, 0, $traffic['date']['month'], 10, $traffic['date']['year']);
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$trafficData[$i]['rx'] = kibibytesToBytes($traffic['rx'], $this->vnstatJsonVersion);
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$trafficData[$i]['tx'] = kibibytesToBytes($traffic['tx'], $this->vnstatJsonVersion);
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$trafficData[$i]['total'] = kibibytesToBytes(($traffic['rx'] + $traffic['tx']), $this->vnstatJsonVersion);
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}
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}
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}
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}
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if ($timeperiod != 'top10') {
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usort($trafficData, 'sortingFunction');
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}
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if ($type == 'graph') {
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// Get the largest value and then prefix (B, KB, MB, GB, etc)
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$trafficLargestValue = getLargestValue($trafficData);
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$trafficScale = getScale($trafficLargestValue);
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$trafficLargestPrefix = getLargestPrefix($trafficScale);
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$trafficBase = getBaseValue($trafficData, $trafficScale);
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if (($trafficBase < .0099) && ($trafficScale >= 1))
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{
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$trafficScale = $trafficScale - 1;
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$trafficLargestPrefix = getLargestPrefix($trafficScale);
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$trafficBase = getBaseValue($trafficData, $trafficScale);
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}
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foreach($trafficData as &$value) {
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$value['rx'] = formatBytesTo($value['rx'], $trafficScale);
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$value['tx'] = formatBytesTo($value['tx'], $trafficScale);
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$value['total'] = formatBytesTo($value['total'], $trafficScale);
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}
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unset($value);
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$trafficData[0]['delimiter'] = $trafficLargestPrefix;
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$trafficData[0]['base'] = $trafficBase;
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}
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return $trafficData;
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}
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}
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?>
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