Update website

This commit is contained in:
Guilhem Lavaux 2025-02-11 21:30:02 +01:00
parent 0a686aeb9a
commit c4ffa0f6ee
4360 changed files with 1727 additions and 718385 deletions

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<?php
/**
* Server Plugin value object
*/
declare(strict_types=1);
namespace PhpMyAdmin\Server;
/**
* Server Plugin value object
*/
final class Plugin
{
/** @var string */
private $name;
/** @var string|null */
private $version;
/** @var string */
private $status;
/** @var string */
private $type;
/** @var string|null */
private $typeVersion;
/** @var string|null */
private $library;
/** @var string|null */
private $libraryVersion;
/** @var string|null */
private $author;
/** @var string|null */
private $description;
/** @var string */
private $license;
/** @var string|null */
private $loadOption;
/** @var string|null */
private $maturity;
/** @var string|null */
private $authVersion;
/**
* @param string $name Name of the plugin
* @param string|null $version Version from the plugin's general type descriptor
* @param string $status Plugin status
* @param string $type Type of plugin
* @param string|null $typeVersion Version from the plugin's type-specific descriptor
* @param string|null $library Plugin's shared object file name
* @param string|null $libraryVersion Version from the plugin's API interface
* @param string|null $author Author of the plugin
* @param string|null $description Description
* @param string $license Plugin's licence
* @param string|null $loadOption How the plugin was loaded
* @param string|null $maturity Plugin's maturity level
* @param string|null $authVersion Plugin's version as determined by the plugin author
*/
private function __construct(
string $name,
?string $version,
string $status,
string $type,
?string $typeVersion,
?string $library,
?string $libraryVersion,
?string $author,
?string $description,
string $license,
?string $loadOption,
?string $maturity,
?string $authVersion
) {
$this->name = $name;
$this->version = $version;
$this->status = $status;
$this->type = $type;
$this->typeVersion = $typeVersion;
$this->library = $library;
$this->libraryVersion = $libraryVersion;
$this->author = $author;
$this->description = $description;
$this->license = $license;
$this->loadOption = $loadOption;
$this->maturity = $maturity;
$this->authVersion = $authVersion;
}
/**
* @param array $state array with the properties
*/
public static function fromState(array $state): self
{
return new self(
$state['name'] ?? '',
$state['version'] ?? null,
$state['status'] ?? '',
$state['type'] ?? '',
$state['typeVersion'] ?? null,
$state['library'] ?? null,
$state['libraryVersion'] ?? null,
$state['author'] ?? null,
$state['description'] ?? null,
$state['license'] ?? '',
$state['loadOption'] ?? null,
$state['maturity'] ?? null,
$state['authVersion'] ?? null
);
}
/**
* @return array
*/
public function toArray(): array
{
return [
'name' => $this->getName(),
'version' => $this->getVersion(),
'status' => $this->getStatus(),
'type' => $this->getType(),
'type_version' => $this->getTypeVersion(),
'library' => $this->getLibrary(),
'library_version' => $this->getLibraryVersion(),
'author' => $this->getAuthor(),
'description' => $this->getDescription(),
'license' => $this->getLicense(),
'load_option' => $this->getLoadOption(),
'maturity' => $this->getMaturity(),
'auth_version' => $this->getAuthVersion(),
];
}
public function getName(): string
{
return $this->name;
}
public function getVersion(): ?string
{
return $this->version;
}
public function getStatus(): string
{
return $this->status;
}
public function getType(): string
{
return $this->type;
}
public function getTypeVersion(): ?string
{
return $this->typeVersion;
}
public function getLibrary(): ?string
{
return $this->library;
}
public function getLibraryVersion(): ?string
{
return $this->libraryVersion;
}
public function getAuthor(): ?string
{
return $this->author;
}
public function getDescription(): ?string
{
return $this->description;
}
public function getLicense(): string
{
return $this->license;
}
public function getLoadOption(): ?string
{
return $this->loadOption;
}
public function getMaturity(): ?string
{
return $this->maturity;
}
public function getAuthVersion(): ?string
{
return $this->authVersion;
}
}

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<?php
declare(strict_types=1);
namespace PhpMyAdmin\Server;
use PhpMyAdmin\DatabaseInterface;
use function __;
class Plugins
{
/** @var DatabaseInterface */
private $dbi;
/**
* @param DatabaseInterface $dbi DatabaseInterface instance
*/
public function __construct(DatabaseInterface $dbi)
{
$this->dbi = $dbi;
}
/**
* @return Plugin[]
*/
public function getAll(): array
{
global $cfg;
$sql = 'SHOW PLUGINS';
if (! $cfg['Server']['DisableIS']) {
$sql = 'SELECT * FROM information_schema.PLUGINS ORDER BY PLUGIN_TYPE, PLUGIN_NAME';
}
$result = $this->dbi->query($sql);
$plugins = [];
while ($row = $result->fetchAssoc()) {
$plugins[] = $this->mapRowToPlugin($row);
}
return $plugins;
}
/**
* @return array<int|string, string>
*/
public function getAuthentication(): array
{
$result = $this->dbi->query(
'SELECT `PLUGIN_NAME`, `PLUGIN_DESCRIPTION` FROM `information_schema`.`PLUGINS`'
. ' WHERE `PLUGIN_TYPE` = \'AUTHENTICATION\';'
);
$plugins = [];
while ($row = $result->fetchAssoc()) {
$plugins[$row['PLUGIN_NAME']] = $this->getTranslatedDescription($row['PLUGIN_DESCRIPTION']);
}
return $plugins;
}
private function getTranslatedDescription(string $description): string
{
// mysql_native_password
if ($description === 'Native MySQL authentication') {
return __('Native MySQL authentication');
}
// sha256_password
if ($description === 'SHA256 password authentication') {
return __('SHA256 password authentication');
}
// caching_sha2_password
if ($description === 'Caching sha2 authentication') {
return __('Caching sha2 authentication');
}
// auth_socket || unix_socket
if ($description === 'Unix Socket based authentication') {
return __('Unix Socket based authentication');
}
// mysql_old_password
if ($description === 'Old MySQL-4.0 authentication') {
return __('Old MySQL-4.0 authentication');
}
return $description;
}
/**
* @param array $row Row fetched from database
*/
private function mapRowToPlugin(array $row): Plugin
{
return Plugin::fromState([
'name' => $row['PLUGIN_NAME'] ?? $row['Name'],
'version' => $row['PLUGIN_VERSION'] ?? null,
'status' => $row['PLUGIN_STATUS'] ?? $row['Status'],
'type' => $row['PLUGIN_TYPE'] ?? $row['Type'],
'typeVersion' => $row['PLUGIN_TYPE_VERSION'] ?? null,
'library' => $row['PLUGIN_LIBRARY'] ?? $row['Library'] ?? null,
'libraryVersion' => $row['PLUGIN_LIBRARY_VERSION'] ?? null,
'author' => $row['PLUGIN_AUTHOR'] ?? null,
'description' => $row['PLUGIN_DESCRIPTION'] ?? null,
'license' => $row['PLUGIN_LICENSE'] ?? $row['License'],
'loadOption' => $row['LOAD_OPTION'] ?? null,
'maturity' => $row['PLUGIN_MATURITY'] ?? null,
'authVersion' => $row['PLUGIN_AUTH_VERSION'] ?? null,
]);
}
}

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<?php
declare(strict_types=1);
namespace PhpMyAdmin\Server\Privileges;
use Exception;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Query\Compatibility;
use function __;
use function sprintf;
final class AccountLocking
{
/** @var DatabaseInterface */
private $dbi;
public function __construct(DatabaseInterface $dbi)
{
$this->dbi = $dbi;
}
/**
* @throws Exception
*/
public function lock(string $user, string $host): void
{
if (! Compatibility::hasAccountLocking($this->dbi->isMariaDB(), $this->dbi->getVersion())) {
throw new Exception(__('Account locking is not supported.'));
}
$statement = sprintf(
'ALTER USER \'%s\'@\'%s\' ACCOUNT LOCK;',
$this->dbi->escapeString($user),
$this->dbi->escapeString($host)
);
if ($this->dbi->tryQuery($statement) !== false) {
return;
}
throw new Exception($this->dbi->getError());
}
/**
* @throws Exception
*/
public function unlock(string $user, string $host): void
{
if (! Compatibility::hasAccountLocking($this->dbi->isMariaDB(), $this->dbi->getVersion())) {
throw new Exception(__('Account locking is not supported.'));
}
$statement = sprintf(
'ALTER USER \'%s\'@\'%s\' ACCOUNT UNLOCK;',
$this->dbi->escapeString($user),
$this->dbi->escapeString($host)
);
if ($this->dbi->tryQuery($statement) !== false) {
return;
}
throw new Exception($this->dbi->getError());
}
}

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<?php
/**
* Code for displaying server selection
*/
declare(strict_types=1);
namespace PhpMyAdmin\Server;
use PhpMyAdmin\Template;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;
use function count;
use function implode;
use function is_array;
use function str_contains;
/**
* Displays the MySQL servers choice form
*/
class Select
{
/**
* Renders the server selection in list or selectbox form, or option tags only
*
* @param bool $not_only_options whether to include form tags or not
* @param bool $omit_fieldset whether to omit fieldset tag or not
*
* @return string
*/
public static function render($not_only_options, $omit_fieldset)
{
// Show as list?
if ($not_only_options) {
$list = $GLOBALS['cfg']['DisplayServersList'];
$not_only_options = ! $list;
} else {
$list = false;
}
$form_action = '';
if ($not_only_options) {
$form_action = Util::getScriptNameForOption($GLOBALS['cfg']['DefaultTabServer'], 'server');
}
$servers = [];
foreach ($GLOBALS['cfg']['Servers'] as $key => $server) {
if (empty($server['host'])) {
continue;
}
if (! empty($GLOBALS['server']) && (int) $GLOBALS['server'] === (int) $key) {
$selected = 1;
} else {
$selected = 0;
}
if (! empty($server['verbose'])) {
$label = $server['verbose'];
} else {
$label = $server['host'];
if (! empty($server['port'])) {
$label .= ':' . $server['port'];
}
}
if (! empty($server['only_db'])) {
if (! is_array($server['only_db'])) {
$label .= ' - ' . $server['only_db'];
// try to avoid displaying a too wide selector
} elseif (count($server['only_db']) < 4) {
$label .= ' - ' . implode(', ', $server['only_db']);
}
}
if (! empty($server['user']) && $server['auth_type'] === 'config') {
$label .= ' (' . $server['user'] . ')';
}
if ($list) {
if ($selected) {
$servers['list'][] = [
'selected' => true,
'label' => $label,
];
} else {
$scriptName = Util::getScriptNameForOption($GLOBALS['cfg']['DefaultTabServer'], 'server');
$href = $scriptName . Url::getCommon(
['server' => $key],
! str_contains($scriptName, '?') ? '?' : '&'
);
$servers['list'][] = [
'href' => $href,
'label' => $label,
];
}
} else {
$servers['select'][] = [
'value' => $key,
'selected' => $selected,
'label' => $label,
];
}
}
$renderDetails = [
'not_only_options' => $not_only_options,
'omit_fieldset' => $omit_fieldset,
'servers' => $servers,
];
if ($not_only_options) {
$renderDetails['form_action'] = $form_action;
}
$template = new Template();
return $template->render('server/select/index', $renderDetails);
}
}

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<?php
/**
* PhpMyAdmin\Server\Status\Data class
* Used by server_status_*.php pages
*/
declare(strict_types=1);
namespace PhpMyAdmin\Server\Status;
use PhpMyAdmin\ReplicationInfo;
use PhpMyAdmin\Url;
use function __;
use function basename;
use function mb_strtolower;
use function str_contains;
/**
* This class provides data about the server status
*
* All properties of the class are read-only
*
* TODO: Use lazy initialisation for some of the properties
* since not all of the server_status_*.php pages need
* all the data that this class provides.
*/
class Data
{
/** @var array */
public $status;
/** @var array */
public $sections;
/** @var array */
public $variables;
/** @var array */
public $usedQueries;
/** @var array */
public $allocationMap;
/** @var array */
public $links;
/** @var bool */
public $dbIsLocal;
/** @var mixed */
public $section;
/** @var array */
public $sectionUsed;
/** @var string */
public $selfUrl;
/** @var bool */
public $dataLoaded;
/** @var ReplicationInfo */
private $replicationInfo;
public function getReplicationInfo(): ReplicationInfo
{
return $this->replicationInfo;
}
/**
* An empty setter makes the above properties read-only
*
* @param string $a key
* @param mixed $b value
*/
public function __set($a, $b): void
{
// Discard everything
}
/**
* Gets the allocations for constructor
*
* @return array
*/
private function getAllocations()
{
return [
// variable name => section
// variable names match when they begin with the given string
'Com_' => 'com',
'Innodb_' => 'innodb',
'Ndb_' => 'ndb',
'Handler_' => 'handler',
'Qcache_' => 'qcache',
'Threads_' => 'threads',
'Slow_launch_threads' => 'threads',
'Binlog_cache_' => 'binlog_cache',
'Created_tmp_' => 'created_tmp',
'Key_' => 'key',
'Delayed_' => 'delayed',
'Not_flushed_delayed_rows' => 'delayed',
'Flush_commands' => 'query',
'Last_query_cost' => 'query',
'Slow_queries' => 'query',
'Queries' => 'query',
'Prepared_stmt_count' => 'query',
'Select_' => 'select',
'Sort_' => 'sort',
'Open_tables' => 'table',
'Opened_tables' => 'table',
'Open_table_definitions' => 'table',
'Opened_table_definitions' => 'table',
'Table_locks_' => 'table',
'Rpl_status' => 'repl',
'Slave_' => 'repl',
'Tc_' => 'tc',
'Ssl_' => 'ssl',
'Open_files' => 'files',
'Open_streams' => 'files',
'Opened_files' => 'files',
];
}
/**
* Gets the sections for constructor
*
* @return array
*/
private function getSections()
{
return [
// section => section name (description)
'com' => 'Com',
'query' => __('SQL query'),
'innodb' => 'InnoDB',
'ndb' => 'NDB',
'handler' => __('Handler'),
'qcache' => __('Query cache'),
'threads' => __('Threads'),
'binlog_cache' => __('Binary log'),
'created_tmp' => __('Temporary data'),
'delayed' => __('Delayed inserts'),
'key' => __('Key cache'),
'select' => __('Joins'),
'repl' => __('Replication'),
'sort' => __('Sorting'),
'table' => __('Tables'),
'tc' => __('Transaction coordinator'),
'files' => __('Files'),
'ssl' => 'SSL',
'other' => __('Other'),
];
}
/**
* Gets the links for constructor
*
* @return array
*/
private function getLinks()
{
$primaryInfo = $this->replicationInfo->getPrimaryInfo();
$replicaInfo = $this->replicationInfo->getReplicaInfo();
$links = [];
// variable or section name => (name => url)
$links['table'][__('Flush (close) all tables')] = [
'url' => $this->selfUrl,
'params' => Url::getCommon(['flush' => 'TABLES'], ''),
];
$links['table'][__('Show open tables')] = [
'url' => Url::getFromRoute('/sql'),
'params' => Url::getCommon([
'sql_query' => 'SHOW OPEN TABLES',
'goto' => $this->selfUrl,
], ''),
];
if ($primaryInfo['status']) {
$links['repl'][__('Show replica hosts')] = [
'url' => Url::getFromRoute('/sql'),
'params' => Url::getCommon([
'sql_query' => 'SHOW SLAVE HOSTS',
'goto' => $this->selfUrl,
], ''),
];
$links['repl'][__('Show primary status')] = [
'url' => '#replication_primary',
'params' => '',
];
}
if ($replicaInfo['status']) {
$links['repl'][__('Show replica status')] = [
'url' => '#replication_replica',
'params' => '',
];
}
$links['repl']['doc'] = 'replication';
$links['qcache'][__('Flush query cache')] = [
'url' => $this->selfUrl,
'params' => Url::getCommon(['flush' => 'QUERY CACHE'], ''),
];
$links['qcache']['doc'] = 'query_cache';
$links['threads']['doc'] = 'mysql_threads';
$links['key']['doc'] = 'myisam_key_cache';
$links['binlog_cache']['doc'] = 'binary_log';
$links['Slow_queries']['doc'] = 'slow_query_log';
$links['innodb'][__('Variables')] = [
'url' => Url::getFromRoute('/server/engines/InnoDB'),
'params' => '',
];
$links['innodb'][__('InnoDB Status')] = [
'url' => Url::getFromRoute('/server/engines/InnoDB/Status'),
'params' => '',
];
$links['innodb']['doc'] = 'innodb';
return $links;
}
/**
* Calculate some values
*
* @param array $server_status contains results of SHOW GLOBAL STATUS
* @param array $server_variables contains results of SHOW GLOBAL VARIABLES
*
* @return array
*/
private function calculateValues(array $server_status, array $server_variables)
{
// Key_buffer_fraction
if (
isset($server_status['Key_blocks_unused'], $server_variables['key_cache_block_size'])
&& isset($server_variables['key_buffer_size'])
&& $server_variables['key_buffer_size'] != 0
) {
$server_status['Key_buffer_fraction_%'] = 100
- $server_status['Key_blocks_unused']
* $server_variables['key_cache_block_size']
/ $server_variables['key_buffer_size']
* 100;
} elseif (
isset($server_status['Key_blocks_used'], $server_variables['key_buffer_size'])
&& $server_variables['key_buffer_size'] != 0
) {
$server_status['Key_buffer_fraction_%'] = $server_status['Key_blocks_used']
* 1024
/ $server_variables['key_buffer_size'];
}
// Ratio for key read/write
if (
isset($server_status['Key_writes'], $server_status['Key_write_requests'])
&& $server_status['Key_write_requests'] > 0
) {
$key_writes = $server_status['Key_writes'];
$key_write_requests = $server_status['Key_write_requests'];
$server_status['Key_write_ratio_%'] = 100 * $key_writes / $key_write_requests;
}
if (
isset($server_status['Key_reads'], $server_status['Key_read_requests'])
&& $server_status['Key_read_requests'] > 0
) {
$key_reads = $server_status['Key_reads'];
$key_read_requests = $server_status['Key_read_requests'];
$server_status['Key_read_ratio_%'] = 100 * $key_reads / $key_read_requests;
}
// Threads_cache_hitrate
if (
isset($server_status['Threads_created'], $server_status['Connections'])
&& $server_status['Connections'] > 0
) {
$server_status['Threads_cache_hitrate_%'] = 100 - $server_status['Threads_created']
/ $server_status['Connections'] * 100;
}
return $server_status;
}
/**
* Sort variables into arrays
*
* @param array $server_status contains results of SHOW GLOBAL STATUS
* @param array $allocations allocations for sections
* @param array $allocationMap map variables to their section
* @param array $sectionUsed is a section used?
* @param array $used_queries used queries
*
* @return array ($allocationMap, $sectionUsed, $used_queries)
*/
private function sortVariables(
array $server_status,
array $allocations,
array $allocationMap,
array $sectionUsed,
array $used_queries
) {
foreach ($server_status as $name => $value) {
$section_found = false;
foreach ($allocations as $filter => $section) {
if (! str_contains($name, $filter)) {
continue;
}
$allocationMap[$name] = $section;
$sectionUsed[$section] = true;
$section_found = true;
if ($section === 'com' && $value > 0) {
$used_queries[$name] = $value;
}
break; // Only exits inner loop
}
if ($section_found) {
continue;
}
$allocationMap[$name] = 'other';
$sectionUsed['other'] = true;
}
return [
$allocationMap,
$sectionUsed,
$used_queries,
];
}
public function __construct()
{
global $dbi;
$this->replicationInfo = new ReplicationInfo($dbi);
$this->replicationInfo->load($_POST['primary_connection'] ?? null);
$this->selfUrl = basename($GLOBALS['PMA_PHP_SELF']);
// get status from server
$server_status_result = $dbi->tryQuery('SHOW GLOBAL STATUS');
if ($server_status_result === false) {
$server_status = [];
$this->dataLoaded = false;
} else {
$this->dataLoaded = true;
$server_status = $server_status_result->fetchAllKeyPair();
unset($server_status_result);
}
// for some calculations we require also some server settings
$server_variables = $dbi->fetchResult('SHOW GLOBAL VARIABLES', 0, 1);
// cleanup of some deprecated values
$server_status = self::cleanDeprecated($server_status);
// calculate some values
$server_status = $this->calculateValues($server_status, $server_variables);
// split variables in sections
$allocations = $this->getAllocations();
$sections = $this->getSections();
// define some needful links/commands
$links = $this->getLinks();
// Variable to contain all com_ variables (query statistics)
$used_queries = [];
// Variable to map variable names to their respective section name
// (used for js category filtering)
$allocationMap = [];
// Variable to mark used sections
$sectionUsed = [];
// sort vars into arrays
[
$allocationMap,
$sectionUsed,
$used_queries,
] = $this->sortVariables($server_status, $allocations, $allocationMap, $sectionUsed, $used_queries);
// admin commands are not queries (e.g. they include COM_PING,
// which is excluded from $server_status['Questions'])
unset($used_queries['Com_admin_commands']);
// Set all class properties
$this->dbIsLocal = false;
// can be null if $cfg['ServerDefault'] = 0;
$serverHostToLower = mb_strtolower((string) $GLOBALS['cfg']['Server']['host']);
if (
$serverHostToLower === 'localhost'
|| $GLOBALS['cfg']['Server']['host'] === '127.0.0.1'
|| $GLOBALS['cfg']['Server']['host'] === '::1'
) {
$this->dbIsLocal = true;
}
$this->status = $server_status;
$this->sections = $sections;
$this->variables = $server_variables;
$this->usedQueries = $used_queries;
$this->allocationMap = $allocationMap;
$this->links = $links;
$this->sectionUsed = $sectionUsed;
}
/**
* cleanup of some deprecated values
*
* @param array $server_status status array to process
*
* @return array
*/
public static function cleanDeprecated(array $server_status)
{
$deprecated = [
'Com_prepare_sql' => 'Com_stmt_prepare',
'Com_execute_sql' => 'Com_stmt_execute',
'Com_dealloc_sql' => 'Com_stmt_close',
];
foreach ($deprecated as $old => $new) {
if (! isset($server_status[$old], $server_status[$new])) {
continue;
}
unset($server_status[$old]);
}
return $server_status;
}
}

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<?php
/**
* functions for displaying server status sub item: monitor
*/
declare(strict_types=1);
namespace PhpMyAdmin\Server\Status;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Profiling;
use PhpMyAdmin\Server\SysInfo\SysInfo;
use PhpMyAdmin\Util;
use function array_sum;
use function count;
use function implode;
use function is_numeric;
use function json_decode;
use function mb_strlen;
use function mb_strpos;
use function mb_strtolower;
use function mb_substr;
use function microtime;
use function preg_match;
use function preg_replace;
use function strlen;
/**
* functions for displaying server status sub item: monitor
*/
class Monitor
{
/** @var DatabaseInterface */
private $dbi;
/**
* @param DatabaseInterface $dbi DatabaseInterface instance
*/
public function __construct($dbi)
{
$this->dbi = $dbi;
}
/**
* Returns JSON for real-time charting data
*
* @param string $requiredData Required data
*
* @return array JSON
*/
public function getJsonForChartingData(string $requiredData): array
{
$ret = json_decode($requiredData, true);
$statusVars = [];
$serverVars = [];
$sysinfo = $cpuload = $memory = 0;
/* Accumulate all required variables and data */
[$serverVars, $statusVars, $ret] = $this->getJsonForChartingDataGet(
$ret,
$serverVars,
$statusVars,
$sysinfo,
$cpuload,
$memory
);
// Retrieve all required status variables
$statusVarValues = [];
if (count($statusVars)) {
$statusVarValues = $this->dbi->fetchResult(
"SHOW GLOBAL STATUS WHERE Variable_name='"
. implode("' OR Variable_name='", $statusVars) . "'",
0,
1
);
}
// Retrieve all required server variables
$serverVarValues = [];
if (count($serverVars)) {
$serverVarValues = $this->dbi->fetchResult(
"SHOW GLOBAL VARIABLES WHERE Variable_name='"
. implode("' OR Variable_name='", $serverVars) . "'",
0,
1
);
}
// ...and now assign them
$ret = $this->getJsonForChartingDataSet($ret, $statusVarValues, $serverVarValues);
$ret['x'] = (int) (microtime(true) * 1000);
return $ret;
}
/**
* Assign the variables for real-time charting data
*
* @param array $ret Real-time charting data
* @param array $statusVarValues Status variable values
* @param array $serverVarValues Server variable values
*
* @return array
*/
private function getJsonForChartingDataSet(
array $ret,
array $statusVarValues,
array $serverVarValues
): array {
foreach ($ret as $chart_id => $chartNodes) {
foreach ($chartNodes as $node_id => $nodeDataPoints) {
foreach ($nodeDataPoints as $point_id => $dataPoint) {
switch ($dataPoint['type']) {
case 'statusvar':
$ret[$chart_id][$node_id][$point_id]['value'] = $statusVarValues[$dataPoint['name']];
break;
case 'servervar':
$ret[$chart_id][$node_id][$point_id]['value'] = $serverVarValues[$dataPoint['name']];
break;
}
}
}
}
return $ret;
}
/**
* Get called to get JSON for charting data
*
* @param array $ret Real-time charting data
* @param array $serverVars Server variable values
* @param array $statusVars Status variable values
* @param mixed $sysinfo System info
* @param mixed $cpuload CPU load
* @param mixed $memory Memory
*
* @return array
*/
private function getJsonForChartingDataGet(
array $ret,
array $serverVars,
array $statusVars,
$sysinfo,
$cpuload,
$memory
) {
// For each chart
foreach ($ret as $chartId => $chartNodes) {
// For each data series
foreach ($chartNodes as $nodeId => $nodeDataPoints) {
// For each data point in the series (usually just 1)
foreach ($nodeDataPoints as $pointId => $dataPoint) {
[$serverVars, $statusVars, $ret[$chartId][$nodeId][$pointId]] = $this->getJsonForChartingDataSwitch(
$dataPoint['type'],
$dataPoint['name'],
$serverVars,
$statusVars,
$ret[$chartId][$nodeId][$pointId],
$sysinfo,
$cpuload,
$memory
);
} /* foreach */
} /* foreach */
}
return [
$serverVars,
$statusVars,
$ret,
];
}
/**
* Switch called to get JSON for charting data
*
* @param string $type Type
* @param string $pName Name
* @param array $serverVars Server variable values
* @param array $statusVars Status variable values
* @param array $ret Real-time charting data
* @param mixed $sysinfo System info
* @param mixed $cpuload CPU load
* @param mixed $memory Memory
*
* @return array
*/
private function getJsonForChartingDataSwitch(
$type,
$pName,
array $serverVars,
array $statusVars,
array $ret,
$sysinfo,
$cpuload,
$memory
) {
/**
* We only collect the status and server variables here to read them all in one query,
* and only afterwards assign them. Also do some allow list filtering on the names
*/
switch ($type) {
case 'servervar':
if (! preg_match('/[^a-zA-Z_]+/', $pName)) {
$serverVars[] = $pName;
}
break;
case 'statusvar':
if (! preg_match('/[^a-zA-Z_]+/', $pName)) {
$statusVars[] = $pName;
}
break;
case 'proc':
$result = $this->dbi->query('SHOW PROCESSLIST');
$ret['value'] = $result->numRows();
break;
case 'cpu':
if (! $sysinfo) {
$sysinfo = SysInfo::get();
}
if (! $cpuload) {
$cpuload = $sysinfo->loadavg();
}
if (SysInfo::getOs() === 'Linux') {
$ret['idle'] = $cpuload['idle'];
$ret['busy'] = $cpuload['busy'];
} else {
$ret['value'] = $cpuload['loadavg'];
}
break;
case 'memory':
if (! $sysinfo) {
$sysinfo = SysInfo::get();
}
if (! $memory) {
$memory = $sysinfo->memory();
}
$ret['value'] = $memory[$pName] ?? 0;
break;
}
return [
$serverVars,
$statusVars,
$ret,
];
}
/**
* Returns JSON for log data with type: slow
*
* @param int $start Unix Time: Start time for query
* @param int $end Unix Time: End time for query
*/
public function getJsonForLogDataTypeSlow(int $start, int $end): ?array
{
$query = 'SELECT start_time, user_host, ';
$query .= 'Sec_to_Time(Sum(Time_to_Sec(query_time))) as query_time, ';
$query .= 'Sec_to_Time(Sum(Time_to_Sec(lock_time))) as lock_time, ';
$query .= 'SUM(rows_sent) AS rows_sent, ';
$query .= 'SUM(rows_examined) AS rows_examined, db, sql_text, ';
$query .= 'COUNT(sql_text) AS \'#\' ';
$query .= 'FROM `mysql`.`slow_log` ';
$query .= 'WHERE start_time > FROM_UNIXTIME(' . $start . ') ';
// See: mode = ONLY_FULL_GROUP_BY
$query .= 'AND start_time < FROM_UNIXTIME(' . $end . ') GROUP BY start_time, user_host, db, sql_text';
$result = $this->dbi->tryQuery($query);
if ($result === false) {
return null;
}
$return = [
'rows' => [],
'sum' => [],
];
while ($row = $result->fetchAssoc()) {
$type = mb_strtolower(
mb_substr(
$row['sql_text'],
0,
(int) mb_strpos($row['sql_text'], ' ')
)
);
switch ($type) {
case 'insert':
case 'update':
//Cut off big inserts and updates, but append byte count instead
if (mb_strlen($row['sql_text']) > 220) {
$implodeSqlText = implode(
' ',
(array) Util::formatByteDown(
mb_strlen($row['sql_text']),
2,
2
)
);
$row['sql_text'] = mb_substr($row['sql_text'], 0, 200)
. '... [' . $implodeSqlText . ']';
}
break;
default:
break;
}
if (! isset($return['sum'][$type])) {
$return['sum'][$type] = 0;
}
$return['sum'][$type] += $row['#'];
$return['rows'][] = $row;
}
$return['sum']['TOTAL'] = array_sum($return['sum']);
$return['numRows'] = count($return['rows']);
return $return;
}
/**
* Returns JSON for log data with type: general
*
* @param int $start Unix Time: Start time for query
* @param int $end Unix Time: End time for query
* @param bool $isTypesLimited Whether to limit types or not
* @param bool $removeVariables Whether to remove variables or not
*/
public function getJsonForLogDataTypeGeneral(
int $start,
int $end,
bool $isTypesLimited,
bool $removeVariables
): ?array {
$limitTypes = '';
if ($isTypesLimited) {
$limitTypes = 'AND argument REGEXP \'^(INSERT|SELECT|UPDATE|DELETE)\' ';
}
$query = 'SELECT TIME(event_time) as event_time, user_host, thread_id, ';
$query .= 'server_id, argument, count(argument) as \'#\' ';
$query .= 'FROM `mysql`.`general_log` ';
$query .= 'WHERE command_type=\'Query\' ';
$query .= 'AND event_time > FROM_UNIXTIME(' . $start . ') ';
$query .= 'AND event_time < FROM_UNIXTIME(' . $end . ') ';
// See: mode = ONLY_FULL_GROUP_BY
$query .= $limitTypes . 'GROUP by event_time, user_host, thread_id, server_id, argument'; // HAVING count > 1';
$result = $this->dbi->tryQuery($query);
if ($result === false) {
return null;
}
$return = [
'rows' => [],
'sum' => [],
];
$insertTables = [];
$insertTablesFirst = -1;
$i = 0;
while ($row = $result->fetchAssoc()) {
preg_match('/^(\w+)\s/', $row['argument'], $match);
$type = mb_strtolower($match[1]);
if (! isset($return['sum'][$type])) {
$return['sum'][$type] = 0;
}
$return['sum'][$type] += $row['#'];
switch ($type) {
/** @noinspection PhpMissingBreakStatementInspection */
case 'insert':
// Group inserts if selected
if (
$removeVariables && preg_match(
'/^INSERT INTO (`|\'|"|)([^\s\\1]+)\\1/i',
$row['argument'],
$matches
)
) {
if (! isset($insertTables[$matches[2]])) {
$insertTables[$matches[2]] = 0;
}
$insertTables[$matches[2]]++;
if ($insertTables[$matches[2]] > 1) {
$return['rows'][$insertTablesFirst]['#'] = $insertTables[$matches[2]];
// Add a ... to the end of this query to indicate that
// there's been other queries
$temp = $return['rows'][$insertTablesFirst]['argument'];
$return['rows'][$insertTablesFirst]['argument'] .= $this->getSuspensionPoints(
$temp[strlen($temp) - 1]
);
// Group this value, thus do not add to the result list
continue 2;
}
$insertTablesFirst = $i;
$insertTables[$matches[2]] += $row['#'] - 1;
}
// No break here
case 'update':
// Cut off big inserts and updates,
// but append byte count therefor
if (mb_strlen($row['argument']) > 220) {
$row['argument'] = mb_substr($row['argument'], 0, 200)
. '... ['
. implode(
' ',
(array) Util::formatByteDown(
mb_strlen($row['argument']),
2,
2
)
)
. ']';
}
break;
default:
break;
}
$return['rows'][] = $row;
$i++;
}
$return['sum']['TOTAL'] = array_sum($return['sum']);
$return['numRows'] = count($return['rows']);
return $return;
}
/**
* Return suspension points if needed
*
* @param string $lastChar Last char
*
* @return string Return suspension points if needed
*/
private function getSuspensionPoints(string $lastChar): string
{
if ($lastChar !== '.') {
return '<br>...';
}
return '';
}
/**
* Returns JSON for logging vars
*
* @param string|null $name Variable name
* @param string|null $value Variable value
*
* @return array JSON
*/
public function getJsonForLoggingVars(?string $name, ?string $value): array
{
if (isset($name, $value)) {
$escapedValue = $this->dbi->escapeString($value);
if (! is_numeric($escapedValue)) {
$escapedValue = "'" . $escapedValue . "'";
}
if (! preg_match('/[^a-zA-Z0-9_]+/', $name)) {
$this->dbi->query('SET GLOBAL ' . $name . ' = ' . $escapedValue);
}
}
return $this->dbi->fetchResult(
'SHOW GLOBAL VARIABLES WHERE Variable_name IN'
. ' ("general_log","slow_query_log","long_query_time","log_output")',
0,
1
);
}
/**
* Returns JSON for query_analyzer
*
* @param string $database Database name
* @param string $query SQL query
*
* @return array JSON
*/
public function getJsonForQueryAnalyzer(
string $database,
string $query
): array {
global $cached_affected_rows;
$return = [];
if (strlen($database) > 0) {
$this->dbi->selectDb($database);
}
$profiling = Profiling::isSupported($this->dbi);
if ($profiling) {
$this->dbi->query('SET PROFILING=1;');
}
// Do not cache query
$sqlQuery = preg_replace('/^(\s*SELECT)/i', '\\1 SQL_NO_CACHE', $query);
$this->dbi->tryQuery($sqlQuery);
$return['affectedRows'] = $cached_affected_rows;
$result = $this->dbi->tryQuery('EXPLAIN ' . $sqlQuery);
if ($result !== false) {
$return['explain'] = $result->fetchAllAssoc();
}
// In case an error happened
$return['error'] = $this->dbi->getError();
if ($profiling) {
$return['profiling'] = [];
$result = $this->dbi->tryQuery(
'SELECT seq,state,duration FROM INFORMATION_SCHEMA.PROFILING WHERE QUERY_ID=1 ORDER BY seq'
);
if ($result !== false) {
$return['profiling'] = $result->fetchAllAssoc();
}
}
return $return;
}
}

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@ -1,191 +0,0 @@
<?php
declare(strict_types=1);
namespace PhpMyAdmin\Server\Status;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Html\Generator;
use PhpMyAdmin\Util;
use function __;
use function array_keys;
use function count;
use function mb_strtolower;
use function strlen;
use function ucfirst;
final class Processes
{
/** @var DatabaseInterface */
private $dbi;
public function __construct(DatabaseInterface $dbi)
{
$this->dbi = $dbi;
}
/**
* @param array $params Request parameters
*
* @return array<string, array|string|bool>
*/
public function getList(array $params): array
{
$urlParams = [];
$showFullSql = ! empty($params['full']);
if ($showFullSql) {
$urlParams['full'] = '';
} else {
$urlParams['full'] = 1;
}
$sqlQuery = $showFullSql
? 'SHOW FULL PROCESSLIST'
: 'SHOW PROCESSLIST';
if (
(! empty($params['order_by_field'])
&& ! empty($params['sort_order']))
|| ! empty($params['showExecuting'])
) {
$urlParams['order_by_field'] = $params['order_by_field'];
$urlParams['sort_order'] = $params['sort_order'];
$urlParams['showExecuting'] = $params['showExecuting'];
$sqlQuery = 'SELECT * FROM `INFORMATION_SCHEMA`.`PROCESSLIST` ';
}
if (! empty($params['showExecuting'])) {
$sqlQuery .= ' WHERE state != "" ';
}
if (! empty($params['order_by_field']) && ! empty($params['sort_order'])) {
$sqlQuery .= ' ORDER BY '
. Util::backquote($params['order_by_field'])
. ' ' . $params['sort_order'];
}
$result = $this->dbi->query($sqlQuery);
$rows = [];
while ($process = $result->fetchAssoc()) {
// Array keys need to modify due to the way it has used
// to display column values
foreach (array_keys($process) as $key) {
$newKey = ucfirst(mb_strtolower($key));
if ($newKey === $key) {
continue;
}
$process[$newKey] = $process[$key];
unset($process[$key]);
}
$rows[] = [
'id' => $process['Id'],
'user' => $process['User'],
'host' => $process['Host'],
'db' => ! isset($process['Db']) || strlen($process['Db']) === 0 ? '' : $process['Db'],
'command' => $process['Command'],
'time' => $process['Time'],
'state' => ! empty($process['State']) ? $process['State'] : '---',
'progress' => ! empty($process['Progress']) ? $process['Progress'] : '---',
'info' => ! empty($process['Info']) ? Generator::formatSql($process['Info'], ! $showFullSql) : '---',
];
}
return [
'columns' => $this->getSortableColumnsForProcessList($showFullSql, $params),
'rows' => $rows,
'refresh_params' => $urlParams,
'is_mariadb' => $this->dbi->isMariaDB(),
];
}
private function getSortableColumnsForProcessList(bool $showFullSql, array $params): array
{
// This array contains display name and real column name of each
// sortable column in the table
$sortableColumns = [
[
'column_name' => __('ID'),
'order_by_field' => 'Id',
],
[
'column_name' => __('User'),
'order_by_field' => 'User',
],
[
'column_name' => __('Host'),
'order_by_field' => 'Host',
],
[
'column_name' => __('Database'),
'order_by_field' => 'Db',
],
[
'column_name' => __('Command'),
'order_by_field' => 'Command',
],
[
'column_name' => __('Time'),
'order_by_field' => 'Time',
],
[
'column_name' => __('Status'),
'order_by_field' => 'State',
],
];
if ($this->dbi->isMariaDB()) {
$sortableColumns[] = [
'column_name' => __('Progress'),
'order_by_field' => 'Progress',
];
}
$sortableColumns[] = [
'column_name' => __('SQL query'),
'order_by_field' => 'Info',
];
$sortableColCount = count($sortableColumns);
$columns = [];
foreach ($sortableColumns as $columnKey => $column) {
$is_sorted = ! empty($params['order_by_field'])
&& ! empty($params['sort_order'])
&& ($params['order_by_field'] == $column['order_by_field']);
$column['sort_order'] = 'ASC';
if ($is_sorted && $params['sort_order'] === 'ASC') {
$column['sort_order'] = 'DESC';
}
if (isset($params['showExecuting'])) {
$column['showExecuting'] = 'on';
}
$columns[$columnKey] = [
'name' => $column['column_name'],
'params' => $column,
'is_sorted' => $is_sorted,
'sort_order' => $column['sort_order'],
'has_full_query' => false,
'is_full' => false,
];
if (0 !== --$sortableColCount) {
continue;
}
$columns[$columnKey]['has_full_query'] = true;
if (! $showFullSql) {
continue;
}
$columns[$columnKey]['is_full'] = true;
}
return $columns;
}
}

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@ -1,48 +0,0 @@
<?php
declare(strict_types=1);
namespace PhpMyAdmin\Server\SysInfo;
use const PHP_OS;
/**
* Basic SysInfo class not providing any real data.
*/
class Base
{
/**
* The OS name
*
* @var string
*/
public $os = PHP_OS;
/**
* Gets load information
*
* @return array with load data
*/
public function loadavg()
{
return ['loadavg' => 0];
}
/**
* Gets information about memory usage
*
* @return array with memory usage data
*/
public function memory()
{
return [];
}
/**
* Checks whether class is supported in this environment
*/
public function supported(): bool
{
return true;
}
}

View file

@ -1,115 +0,0 @@
<?php
declare(strict_types=1);
namespace PhpMyAdmin\Server\SysInfo;
use function array_combine;
use function array_merge;
use function file_get_contents;
use function intval;
use function is_array;
use function is_readable;
use function mb_strpos;
use function mb_substr;
use function preg_match_all;
use function preg_split;
/**
* Linux based SysInfo class
*/
class Linux extends Base
{
/**
* The OS name
*
* @var string
*/
public $os = 'Linux';
/**
* Gets load information
*
* @return array<string, int> with load data
*/
public function loadavg()
{
$buf = file_get_contents('/proc/stat');
if ($buf === false) {
$buf = '';
}
$pos = mb_strpos($buf, "\n");
if ($pos === false) {
$pos = 0;
}
$nums = preg_split(
'/\s+/',
mb_substr(
$buf,
0,
$pos
)
);
if (! is_array($nums)) {
return ['busy' => 0, 'idle' => 0];
}
return [
'busy' => (int) $nums[1] + (int) $nums[2] + (int) $nums[3],
'idle' => (int) $nums[4],
];
}
/**
* Checks whether class is supported in this environment
*/
public function supported(): bool
{
return @is_readable('/proc/meminfo') && @is_readable('/proc/stat');
}
/**
* Gets information about memory usage
*
* @return array with memory usage data
*/
public function memory()
{
$content = @file_get_contents('/proc/meminfo');
if ($content === false) {
return [];
}
preg_match_all(SysInfo::MEMORY_REGEXP, $content, $matches);
/** @var array<string, int>|false $mem */
$mem = array_combine($matches[1], $matches[2]);
if ($mem === false) {
return [];
}
$defaults = [
'MemTotal' => 0,
'MemFree' => 0,
'Cached' => 0,
'Buffers' => 0,
'SwapTotal' => 0,
'SwapFree' => 0,
'SwapCached' => 0,
];
$mem = array_merge($defaults, $mem);
foreach ($mem as $idx => $value) {
$mem[$idx] = intval($value);
}
$mem['MemUsed'] = $mem['MemTotal'] - $mem['MemFree'] - $mem['Cached'] - $mem['Buffers'];
$mem['SwapUsed'] = $mem['SwapTotal'] - $mem['SwapFree'] - $mem['SwapCached'];
return $mem;
}
}

View file

@ -1,83 +0,0 @@
<?php
declare(strict_types=1);
namespace PhpMyAdmin\Server\SysInfo;
use function explode;
use function is_readable;
use function shell_exec;
use function trim;
/**
* SunOS based SysInfo class
*/
class SunOs extends Base
{
/**
* The OS name
*
* @var string
*/
public $os = 'SunOS';
/**
* Read value from kstat
*
* @param string $key Key to read
*
* @return string with value
*/
private function kstat($key)
{
/** @psalm-suppress ForbiddenCode */
$m = shell_exec('kstat -p d ' . $key);
if ($m) {
[, $value] = explode("\t", trim($m), 2);
return $value;
}
return '';
}
/**
* Gets load information
*
* @return array with load data
*/
public function loadavg()
{
$load1 = $this->kstat('unix:0:system_misc:avenrun_1min');
return ['loadavg' => $load1];
}
/**
* Checks whether class is supported in this environment
*/
public function supported(): bool
{
return @is_readable('/proc/meminfo');
}
/**
* Gets information about memory usage
*
* @return array with memory usage data
*/
public function memory()
{
$pagesize = (int) $this->kstat('unix:0:seg_cache:slab_size');
$mem = [];
$mem['MemTotal'] = (int) $this->kstat('unix:0:system_pages:pagestotal') * $pagesize;
$mem['MemUsed'] = (int) $this->kstat('unix:0:system_pages:pageslocked') * $pagesize;
$mem['MemFree'] = (int) $this->kstat('unix:0:system_pages:pagesfree') * $pagesize;
$mem['SwapTotal'] = (int) $this->kstat('unix:0:vminfo:swap_avail') / 1024;
$mem['SwapUsed'] = (int) $this->kstat('unix:0:vminfo:swap_alloc') / 1024;
$mem['SwapFree'] = (int) $this->kstat('unix:0:vminfo:swap_free') / 1024;
return $mem;
}
}

View file

@ -1,79 +0,0 @@
<?php
declare(strict_types=1);
namespace PhpMyAdmin\Server\SysInfo;
use function in_array;
use function ucfirst;
use const PHP_OS;
/**
* Library for extracting information about system memory and cpu.
* Currently supports all Windows and Linux platforms
*
* This code is based on the OS Classes from the phpsysinfo project
* (https://phpsysinfo.github.io/phpsysinfo/)
*/
class SysInfo
{
public const MEMORY_REGEXP = '/^(MemTotal|MemFree|Cached|Buffers|SwapCached|SwapTotal|SwapFree):\s+(.*)\s*kB/im';
/**
* Returns OS type used for sysinfo class
*
* @param string $php_os PHP_OS constant
*
* @return string
*/
public static function getOs($php_os = PHP_OS)
{
// look for common UNIX-like systems
$unix_like = [
'FreeBSD',
'DragonFly',
];
if (in_array($php_os, $unix_like)) {
$php_os = 'Linux';
}
return ucfirst($php_os);
}
/**
* Gets SysInfo class matching current OS
*
* @return Base sysinfo class
*/
public static function get()
{
$php_os = self::getOs();
switch ($php_os) {
case 'Linux':
$sysInfo = new Linux();
if ($sysInfo->supported()) {
return $sysInfo;
}
break;
case 'WINNT':
$sysInfo = new WindowsNt();
if ($sysInfo->supported()) {
return $sysInfo;
}
break;
case 'SunOS':
$sysInfo = new SunOs();
if ($sysInfo->supported()) {
return $sysInfo;
}
break;
}
return new Base();
}
}

View file

@ -1,147 +0,0 @@
<?php
declare(strict_types=1);
namespace PhpMyAdmin\Server\SysInfo;
use COM;
use function class_exists;
use function count;
use function in_array;
use function is_string;
use function trim;
/**
* Windows NT based SysInfo class
*/
class WindowsNt extends Base
{
/** @var COM|null */
private $wmi;
/**
* The OS name
*
* @var string
*/
public $os = 'WINNT';
/**
* Constructor to access to wmi database.
*/
public function __construct()
{
if (! class_exists('COM')) {
$this->wmi = null;
return;
}
// initialize the wmi object
$objLocator = new COM('WbemScripting.SWbemLocator');
$this->wmi = $objLocator->ConnectServer();
}
/**
* Gets load information
*
* @return array with load data
*/
public function loadavg()
{
$sum = 0;
$buffer = $this->getWMI('Win32_Processor', ['LoadPercentage']);
foreach ($buffer as $load) {
$value = $load['LoadPercentage'];
$sum += $value;
}
return ['loadavg' => $sum / count($buffer)];
}
/**
* Checks whether class is supported in this environment
*/
public function supported(): bool
{
return $this->wmi !== null;
}
/**
* Reads data from WMI
*
* @param string $strClass Class to read
* @param array $strValue Values to read
*
* @return array with results
*/
private function getWMI($strClass, array $strValue = [])
{
$arrData = [];
$objWEBM = $this->wmi->Get($strClass);
// phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
$arrProp = $objWEBM->Properties_;
$arrWEBMCol = $objWEBM->Instances_();
foreach ($arrWEBMCol as $objItem) {
$arrInstance = [];
foreach ($arrProp as $propItem) {
// phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
$name = $propItem->Name;
if (! empty($strValue) && ! in_array($name, $strValue)) {
continue;
}
$value = $objItem->$name;
if (is_string($value)) {
$arrInstance[$name] = trim($value);
} else {
$arrInstance[$name] = $value;
}
}
$arrData[] = $arrInstance;
}
return $arrData;
}
/**
* Gets information about memory usage
*
* @return array with memory usage data
*/
public function memory()
{
$buffer = $this->getWMI(
'Win32_OperatingSystem',
[
'TotalVisibleMemorySize',
'FreePhysicalMemory',
]
);
$mem = [];
$mem['MemTotal'] = $buffer[0]['TotalVisibleMemorySize'];
$mem['MemFree'] = $buffer[0]['FreePhysicalMemory'];
$mem['MemUsed'] = $mem['MemTotal'] - $mem['MemFree'];
$buffer = $this->getWMI('Win32_PageFileUsage');
$mem['SwapTotal'] = 0;
$mem['SwapFree'] = 0;
$mem['SwapUsed'] = 0;
$mem['SwapPeak'] = 0;
foreach ($buffer as $swapdevice) {
$mem['SwapTotal'] += $swapdevice['AllocatedBaseSize'] * 1024;
$mem['SwapUsed'] += $swapdevice['CurrentUsage'] * 1024;
$mem['SwapPeak'] += $swapdevice['PeakUsage'] * 1024;
}
$mem['SwapFree'] = $mem['SwapTotal'] - $mem['SwapUsed'];
return $mem;
}
}