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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * ServerStatusData class
 * Used by server_status_*.php pages
 *
 * @package PhpMyAdmin
 */
namespace PMA\libraries;

/**
 * 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.
 *
 * @package PhpMyAdmin
 */
class ServerStatusData
{
    public $status;
    public $sections;
    public $variables;
    public $used_queries;
    public $allocationMap;
    public $links;
    public $db_isLocal;
    public $section;
    public $sectionUsed;
    public $selfUrl;
    public $dataLoaded;

    /**
     * An empty setter makes the above properties read-only
     *
     * @param string $a key
     * @param mixed  $b value
     *
     * @return void
     */
    public function __set($a, $b)
    {
        // Discard everything
    }

    /**
     * Gets the allocations for constructor
     *
     * @return array
     */
    private function _getAllocations()
    {
        return array(
            // 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 array(
            // 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()
    {
        $links = array();
        // variable or section name => (name => url)

        $links['table'][__('Flush (close) all tables')] = $this->selfUrl
            . PMA_URL_getCommon(
                array(
                    'flush' => 'TABLES'
                )
            );
        $links['table'][__('Show open tables')]
            = 'sql.php' . PMA_URL_getCommon(
                array(
                    'sql_query' => 'SHOW OPEN TABLES',
                    'goto' => $this->selfUrl,
                )
            );

        if ($GLOBALS['replication_info']['master']['status']) {
            $links['repl'][__('Show slave hosts')]
                = 'sql.php' . PMA_URL_getCommon(
                    array(
                        'sql_query' => 'SHOW SLAVE HOSTS',
                        'goto' => $this->selfUrl,
                    )
                );
            $links['repl'][__('Show master status')] = '#replication_master';
        }
        if ($GLOBALS['replication_info']['slave']['status']) {
            $links['repl'][__('Show slave status')] = '#replication_slave';
        }

        $links['repl']['doc'] = 'replication';

        $links['qcache'][__('Flush query cache')]
            = $this->selfUrl
            . PMA_URL_getCommon(
                array(
                    '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')]
            = 'server_engines.php?engine=InnoDB&amp;'
            . PMA_URL_getCommon(array(), 'html', '');
        $links['innodb'][__('InnoDB Status')]
            = 'server_engines.php'
            . PMA_URL_getCommon(
                array(
                    'engine' => 'InnoDB',
                    'page' => 'Status'
                )
            );
        $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 $server_status
     */
    private function _calculateValues($server_status, $server_variables)
    {
        // Key_buffer_fraction
        if (isset($server_status['Key_blocks_unused'])
            && isset($server_variables['key_cache_block_size'])
            && isset($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'])
            && isset($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($server_status['Key_writes'])
            && isset($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($server_status['Key_reads'])
            && isset($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($server_status['Threads_created'])
            && isset($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(
        $server_status, $allocations, $allocationMap, $sectionUsed,
        $used_queries
    ) {
        foreach ($server_status as $name => $value) {
            $section_found = false;
            foreach ($allocations as $filter => $section) {
                if (mb_strpos($name, $filter) !== false) {
                    $allocationMap[$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) {
                $allocationMap[$name] = 'other';
                $sectionUsed['other'] = true;
            }
        }
        return array($allocationMap, $sectionUsed, $used_queries);
    }

    /**
     * Constructor
     */
    public function __construct()
    {
        $this->selfUrl = basename($GLOBALS['PMA_PHP_SELF']);

        // get status from server
        $server_status_result = $GLOBALS['dbi']->tryQuery('SHOW GLOBAL STATUS');
        $server_status = array();
        if ($server_status_result === false) {
            $this->dataLoaded = false;
        } else {
            $this->dataLoaded = true;
            while ($arr = $GLOBALS['dbi']->fetchRow($server_status_result)) {
                $server_status[$arr[0]] = $arr[1];
            }
            $GLOBALS['dbi']->freeResult($server_status_result);
        }

        // for some calculations we require also some server settings
        $server_variables = $GLOBALS['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 = array();

        // Variable to map variable names to their respective section name
        // (used for js category filtering)
        $allocationMap = array();

        // Variable to mark used sections
        $sectionUsed = array();

        // sort vars into arrays
        list(
            $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->db_isLocal = false;
        $serverHostToLower = mb_strtolower(
            $GLOBALS['cfg']['Server']['host']
        );
        if ($serverHostToLower === 'localhost'
            || $GLOBALS['cfg']['Server']['host'] === '127.0.0.1'
            || $GLOBALS['cfg']['Server']['host'] === '::1'
        ) {
            $this->db_isLocal = true;
        }
        $this->status = $server_status;
        $this->sections = $sections;
        $this->variables = $server_variables;
        $this->used_queries = $used_queries;
        $this->allocationMap = $allocationMap;
        $this->links = $links;
        $this->sectionUsed = $sectionUsed;
    }

    /**
     * cleanup of some deprecated values
     *
     * @param array $server_status status array to process
     *
     * @return array
     */
    public static function cleanDeprecated($server_status)
    {
        $deprecated = array(
            'Com_prepare_sql' => 'Com_stmt_prepare',
            'Com_execute_sql' => 'Com_stmt_execute',
            'Com_dealloc_sql' => 'Com_stmt_close',
        );
        foreach ($deprecated as $old => $new) {
            if (isset($server_status[$old]) && isset($server_status[$new])) {
                unset($server_status[$old]);
            }
        }
        return $server_status;
    }

    /**
     * Generates menu HTML
     *
     * @return string
     */
    public function getMenuHtml()
    {
        $url_params = PMA_URL_getCommon();
        $items = array(
            array(
                'name' => __('Server'),
                'url' => 'server_status.php'
            ),
            array(
                'name' => __('Processes'),
                'url' => 'server_status_processes.php'
            ),
            array(
                'name' => __('Query statistics'),
                'url' => 'server_status_queries.php'
            ),
            array(
                'name' => __('All status variables'),
                'url' => 'server_status_variables.php'
            ),
            array(
                'name' => __('Monitor'),
                'url' => 'server_status_monitor.php'
            ),
            array(
                'name' => __('Advisor'),
                'url' => 'server_status_advisor.php'
            )
        );

        $retval  = '<ul id="topmenu2">';
        foreach ($items as $item) {
            $class = '';
            if ($item['url'] === $this->selfUrl) {
                $class = ' class="tabactive"';
            }
            $retval .= '<li>';
            $retval .= '<a' . $class;
            $retval .= ' href="' . $item['url'] . $url_params . '">';
            $retval .= $item['name'];
            $retval .= '</a>';
            $retval .= '</li>';
        }
        $retval .= '</ul>';
        $retval .= '<div class="clearfloat"></div>';

        return $retval;
    }

    /**
     * Builds a <select> list for refresh rates
     *
     * @param string $name         Name of select
     * @param int    $defaultRate  Currently chosen rate
     * @param array  $refreshRates List of refresh rates
     *
     * @return string
     */
    public static function getHtmlForRefreshList($name,
        $defaultRate = 5,
        $refreshRates = Array(1, 2, 5, 10, 20, 40, 60, 120, 300, 600)
    ) {
        $return = '<select name="' . $name . '" id="id_' . $name
            . '" class="refreshRate">';
        foreach ($refreshRates as $rate) {
            $selected = ($rate == $defaultRate)?' selected="selected"':'';
            $return .= '<option value="' . $rate . '"' . $selected . '>';
            if ($rate < 60) {
                $return .= sprintf(
                    _ngettext('%d second', '%d seconds', $rate), $rate
                );
            } else {
                $rate = $rate / 60;
                $return .= sprintf(
                    _ngettext('%d minute', '%d minutes', $rate), $rate
                );
            }
            $return .=  '</option>';
        }
        $return .= '</select>';
        return $return;
    }
}


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Name Type Size Permission Actions
bfShapeFiles Folder 0755
config Folder 0755
controllers Folder 0755
dbi Folder 0755
di Folder 0755
engines Folder 0755
gis Folder 0755
navigation Folder 0755
plugins Folder 0755
properties Folder 0755
rte Folder 0755
sql-parser Folder 0755
Advisor.php File 15.13 KB 0644
Config.php File 54.7 KB 0644
Console.php File 14.82 KB 0644
DatabaseInterface.php File 95.6 KB 0644
DbList.php File 1.9 KB 0644
DbQbe.php File 68.87 KB 0644
DbSearch.php File 17.21 KB 0644
DisplayResults.php File 206 KB 0644
Error.php File 12.7 KB 0644
ErrorHandler.php File 16.48 KB 0644
File.php File 18.82 KB 0644
Font.php File 4.24 KB 0644
Footer.php File 10.52 KB 0644
Header.php File 25.34 KB 0644
Index.php File 23.79 KB 0644
IndexColumn.php File 4.46 KB 0644
Language.php File 4.27 KB 0644
LanguageManager.php File 20.75 KB 0644
Linter.php File 5.02 KB 0644
ListAbstract.php File 3.15 KB 0644
ListDatabase.php File 4.62 KB 0644
Menu.php File 21.14 KB 0644
Message.php File 18.67 KB 0644
OutputBuffering.php File 3.59 KB 0644
PDF.php File 3.94 KB 0644
Partition.php File 7.26 KB 0644
Psr4Autoloader.php File 4.85 KB 0644
RecentFavoriteTable.php File 11.78 KB 0644
Response.php File 12.61 KB 0644
SavedSearches.php File 11.67 KB 0644
Scripts.php File 7.38 KB 0644
ServerStatusData.php File 15.72 KB 0644
StorageEngine.php File 13.61 KB 0644
SubPartition.php File 3.52 KB 0644
SysInfo.php File 799 B 0644
SysInfoLinux.php File 1.92 KB 0644
SysInfoSunOS.php File 1.86 KB 0644
SysInfoWINNT.php File 3.08 KB 0644
SystemDatabase.php File 3.66 KB 0644
Table.php File 88.12 KB 0644
Template.php File 4.45 KB 0644
Theme.php File 11.34 KB 0644
ThemeManager.php File 12.91 KB 0644
Tracker.php File 30.35 KB 0644
Types.php File 6.08 KB 0644
TypesMySQL.php File 17.26 KB 0644
Util.php File 172.46 KB 0644
VersionInformation.php File 7.87 KB 0644
ZipFile.php File 6.63 KB 0644
advisor.lib.php File 1.6 KB 0644
advisory_rules.txt File 25.94 KB 0644
autoloader.php File 450 B 0644
bookmark.lib.php File 8.5 KB 0644
browse_foreigners.lib.php File 9.83 KB 0644
central_columns.lib.php File 49.38 KB 0644
charset_conversion.lib.php File 3.54 KB 0644
check_user_privileges.lib.php File 10.65 KB 0644
cleanup.lib.php File 1.29 KB 0644
common.inc.php File 34.38 KB 0644
config.default.php File 66.5 KB 0644
config.values.php File 10.17 KB 0644
core.lib.php File 29.94 KB 0644
create_addfield.lib.php File 15.68 KB 0644
database_interface.inc.php File 2.63 KB 0644
db_common.inc.php File 3.12 KB 0644
db_designer.lib.php File 10.4 KB 0644
db_table_exists.lib.php File 3.21 KB 0644
display_change_password.lib.php File 5.45 KB 0644
display_create_table.lib.php File 1.53 KB 0644
display_export.lib.php File 38.11 KB 0644
display_git_revision.lib.php File 3.04 KB 0644
display_import.lib.php File 24.34 KB 0644
display_import_ajax.lib.php File 3.13 KB 0644
display_select_lang.lib.php File 2.36 KB 0644
error.inc.php File 1.21 KB 0644
error_report.lib.php File 10.25 KB 0644
export.lib.php File 35.16 KB 0644
file_listing.lib.php File 2.37 KB 0644
iconv_wrapper.lib.php File 3.88 KB 0644
import.lib.php File 50.64 KB 0644
index.lib.php File 1.37 KB 0644
information_schema_relations.lib.php File 10.95 KB 0644
insert_edit.lib.php File 112.79 KB 0644
ip_allow_deny.lib.php File 9.35 KB 0644
js_escape.lib.php File 4.43 KB 0644
kanji-encoding.lib.php File 4.46 KB 0644
language_stats.inc.php File 1.45 KB 0644
logging.lib.php File 521 B 0644
mime.lib.php File 704 B 0644
mult_submits.inc.php File 10.64 KB 0644
mult_submits.lib.php File 20.44 KB 0644
mysql_charsets.inc.php File 4.09 KB 0644
mysql_charsets.lib.php File 10.47 KB 0644
mysql_relations.lib.php File 5.12 KB 0644
normalization.lib.php File 33.98 KB 0644
opendocument.lib.php File 7.94 KB 0644
operations.lib.php File 73.64 KB 0644
parse_analyze.lib.php File 2.12 KB 0644
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plugin_interface.lib.php.bak File 19.69 KB 0644
pmd_common.php File 24.2 KB 0644
relation.lib.php File 68.41 KB 0644
relation_cleanup.lib.php File 13.84 KB 0644
replication.inc.php File 8.82 KB 0644
replication_gui.lib.php File 37.45 KB 0644
sanitizing.lib.php File 6.3 KB 0644
select_server.lib.php File 3.4 KB 0644
server_common.inc.php File 1.22 KB 0644
server_common.lib.php File 1.92 KB 0644
server_privileges.lib.php File 179.22 KB 0644
server_status.lib.php File 9.92 KB 0644
server_status_advisor.lib.php File 1.89 KB 0644
server_status_monitor.lib.php File 26.22 KB 0644
server_status_processes.lib.php File 9.57 KB 0644
server_status_queries.lib.php File 4.86 KB 0644
server_status_variables.lib.php File 28.95 KB 0644
server_user_groups.lib.php File 12.8 KB 0644
server_users.lib.php File 1.35 KB 0644
session.inc.php File 5.22 KB 0644
session.lib.php File 735 B 0644
special_schema_links.lib.php File 17.51 KB 0644
sql.lib.php File 77.51 KB 0644
sql.lib.php.bak File 77.51 KB 0644
sql_query_form.lib.php File 15.71 KB 0644
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stringNative.lib.php File 6.82 KB 0644
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tbl_columns_definition_form.inc.php File 13.55 KB 0644
tbl_common.inc.php File 1.3 KB 0644
tbl_info.inc.php File 3.54 KB 0644
tbl_partition_definition.inc.php File 5.55 KB 0644
tracking.lib.php File 54.93 KB 0644
transformations.lib.php File 14.63 KB 0644
url_generating.lib.php File 6.77 KB 0644
user_preferences.inc.php File 2.38 KB 0644
user_preferences.lib.php File 8.17 KB 0644
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vendor_config.php File 2.49 KB 0644
zip_extension.lib.php File 5.38 KB 0644