/
api.php
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/
api.php
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<?php
// include required files
require_once __DIR__.'/modules/includes.php';
$cache = Cache::factory();
// set an API name so multiple monitors don't mix
$apiName = "api-$nanoNodeAccount";
// get cached response
$data = $cache->fetch($apiName, function () use (
&$nanoNodeRPCIP,
&$nanoNodeRPCPort,
&$nanoNodeAccount,
&$blockExplorer,
&$nanoNodeName,
&$nanoNumDecimalPlaces,
&$uptimerobotApiKey,
&$currency,
&$nodeLocation
) {
// get curl handle
$ch = curl_init();
if (!$ch) {
myError('Could not initialize curl!');
}
// we have a valid curl handle here
// set some curl options
curl_setopt($ch, CURLOPT_URL, 'http://'.$nanoNodeRPCIP.':'.$nanoNodeRPCPort);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = new stdClass();
$data->nanoNodeAccount = $nanoNodeAccount;
$data->nanoNodeAccountShort = truncateAddress($data->nanoNodeAccount);
$data->nanoNodeAccountUrl = getAccountUrl($data->nanoNodeAccount, $blockExplorer);
// -- Get Version String from nano node and node monitor
$version = getVersion($ch);
$data->version = $version->{'node_vendor'};
$data->store_version = (int) $version->{'store_version'} ?: 0;
$data->protocol_version = (int) $version->{'protocol_version'} ?: 0;
$data->store_vendor = (string) $version->{'store_vendor'} ?: '';
// Cache the github query for latest node version
global $nodeVersionCache;
$nodeVersionCache = new FileCache(['ttl' => 10 * 60]); // cache for 10 minutes
// set a cache name so multiple monitors don't mix
$cacheName = "nodeVersionCache-$nanoNodeAccount";
// get cached response
$nodeVersionData = $nodeVersionCache->fetch($cacheName, function () {
$nodeVersionData = new stdClass();
$nodeVersionData->latestNodeReleaseVersion = getLatestNodeReleaseVersion();
return $nodeVersionData;
});
$latestVersion = $nodeVersionData->latestNodeReleaseVersion;
$data->newNodeVersionAvailable = isNewNodeVersionAvailable(formatVersion($data->version), $latestVersion, $currency);
$data->nodeMonitorVersion = PROJECT_VERSION;
// -- Get get current block from nano_node
$rpcBlockCount = getBlockCount($ch);
$data->currentBlock = (int) $rpcBlockCount->{'count'};
$data->uncheckedBlocks = (int) $rpcBlockCount->{'unchecked'};
$data->cementedBlocks = (int) $rpcBlockCount->{'cemented'} ?: 0;
// -- Get number of peers from nano_node
$rpcPeers = getPeers($ch);
$peers = (array) $rpcPeers->{'peers'};
$data->numPeers = count($peers);
// -- Get confirmation info from nano_node. Average time, blocks used, time span and percentiles
// -- over last X min (set by CONFIRMATION_TIME_LIMIT) or max 2048 blocks which is a node limitation
//$timeStampBefore = microtime(true); // measure execution time
$rpcConfHistory = getConfirmationHistory($ch);
$confirmations = $rpcConfHistory->{'confirmations'}; // a list of last X confirmations {hash,duration,time,tally}
//$confAverage = $rpcConfHistory->{'confirmation_stats'}->{'average'}; // average time [ms] of all confirmations
//$confCount = $rpcConfHistory->{'confirmation_stats'}->{'count'}; // number of confirmations retrieved from the node
// check if we have confirmations, otherwise skip
if (!empty($confirmations)) {
// remove data older than $timeLimit
usort($confirmations, 'cmpByTime'); // sort array by time value [ms unix time]
$confCompact = []; // new filtered array
$durationTotal = 0; // for average calc
$confAverage = 0; // average confirmation duration
$timeSpan = 0; // full time span of the data [ms]
foreach ($confirmations as $confirmation) {
// only keep data which is later than X ms from latest (highest) value
if ($confirmation->{'time'} >= $confirmations[0]->{'time'} - CONFIRMATION_TIME_LIMIT) {
array_push($confCompact, $confirmation); // add new data
$durationTotal += $confirmation->{'duration'};
} else {
break; // stop iterating once we pass that limit to save time
}
}
$confCount = count($confCompact);
// calculate duration average and time span, avoid dividing by zero
if ($confCount > 0) {
$confAverage = round($durationTotal / $confCount);
$timeSpan = $confCompact[0]->{'time'} - $confCompact[$confCount - 1]->{'time'}; // first minus last
}
// get percentiles directly from the filtered array
usort($confCompact, 'cmpByDuration'); // sort array by duration value
$percentile50 = getConfirmationsDurationPercentile(50, $confCompact); // 50 percentile also called median
$percentile75 = getConfirmationsDurationPercentile(75, $confCompact);
$percentile90 = getConfirmationsDurationPercentile(90, $confCompact);
$percentile95 = getConfirmationsDurationPercentile(95, $confCompact);
$percentile99 = getConfirmationsDurationPercentile(99, $confCompact);
// combine an array with all confirmation info
$confSummary = ['count' => $confCount, 'timeSpan' => $timeSpan, 'average' => $confAverage, 'percentile50' => $percentile50,
'percentile75' => $percentile75, 'percentile90' => $percentile90, 'percentile95' => $percentile95, 'percentile99' => $percentile99, ];
$data->confirmationInfo = $confSummary;
//$data->apiProcTimeConf = round((microtime(true) - $timeStampBefore) * 1000);
}
// -- Get node account balance from nano_node
$rpcNodeAccountBalance = getAccountBalance($ch, $nanoNodeAccount);
$data->accBalanceMnano = rawToCurrency($rpcNodeAccountBalance->{'balance'} ?? 0, $currency);
$data->accBalanceRaw = (int) ($rpcNodeAccountBalance->{'balance'} ?? 0);
$data->accPendingMnano = rawToCurrency($rpcNodeAccountBalance->{'pending'} ?? 0, $currency);
$data->accPendingRaw = (int) ($rpcNodeAccountBalance->{'pending'} ?? 0);
// -- Get representative info for current node from nano_node
$rpcNodeRepInfo = getRepresentativeInfo($ch, $nanoNodeAccount);
$data->repAccount = $rpcNodeRepInfo->{'representative'} ?? '';
$data->repAccountShort = truncateAddress($data->repAccount);
$data->repAccountUrl = getAccountUrl($data->repAccount, $blockExplorer);
// $data->repDelegatorsCount = getDelegatorsCount($ch, $nanoNodeAccount)->count; // disabled (poor performance)
// get the account weight
$rpcNodeAccountWeight = getAccountWeight($ch, $nanoNodeAccount);
$data->votingWeight = rawToCurrency($rpcNodeAccountWeight->{'weight'} ?? 0, $currency);
// -- System uptime & memory info --
$data->systemLoad = getSystemLoadAvg();
$systemUptime = getSystemUptime();
$systemUptimeStr = $systemUptime['days'].' days, '.$systemUptime['hours'].' hrs, '.$systemUptime['mins'].' mins';
$data->systemUptime = $systemUptimeStr;
$data->usedMem = getSystemUsedMem();
$data->totalMem = getSystemTotalMem();
//$data->uname = getUname();
$data->nanoNodeName = $nanoNodeName;
$data->nodeUptimeStartup = (int) getUptime($ch)->{'seconds'} ?: 0;
// get the node uptime (if we have a api key)
if ($uptimerobotApiKey) {
$data->nodeUptime = getNodeUptime($uptimerobotApiKey);
}
// get node location
$data->nodeLocation = $nodeLocation;
// currency and currency symbol
$data->currency = $currency;
$data->currencySymbol = currencySymbol($currency);
// active_difficulty
$data->active_difficulty = getActiveDifficulty($ch);
// node statistics
// maybe we get more stats later
// so this is seperate object
$data->stats = new stdClass();
// get the counters
$data->stats->counters = getStats($ch, 'counters');
// get telemetry data from other nodes
$data->telemetry = getTelemetry($ch);
// sync status in %
if ($data->telemetry->block_count) {
$data->blockSync = getSyncStatus($data->currentBlock, $data->telemetry->block_count);
} else {
$data->blockSync = null;
}
// close curl handle
curl_close($ch);
// calculate total script execution time
$data->apiProcTime = round((microtime(true) - $_SERVER['REQUEST_TIME_FLOAT']) * 1000);
return $data;
});
returnJson($data);