mirror of
https://github.com/cytopia/devilbox.git
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323 lines
8.8 KiB
PHP
323 lines
8.8 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Replication helpers
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*
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* @package PhpMyAdmin
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*/
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if (! defined('PHPMYADMIN')) {
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exit;
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}
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/**
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* get master replication from server
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*/
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$server_master_replication = $GLOBALS['dbi']->fetchResult('SHOW MASTER STATUS');
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/**
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* set selected master server
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*/
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if (! empty($_REQUEST['master_connection'])) {
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/**
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* check for multi-master replication functionality
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*/
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$server_slave_multi_replication = $GLOBALS['dbi']->fetchResult(
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'SHOW ALL SLAVES STATUS'
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);
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if ($server_slave_multi_replication) {
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$GLOBALS['dbi']->query(
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"SET @@default_master_connection = '"
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. PMA\libraries\Util::sqlAddSlashes(
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$_REQUEST['master_connection']
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) . "'"
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);
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$GLOBALS['url_params']['master_connection'] = $_REQUEST['master_connection'];
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}
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}
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/**
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* get slave replication from server
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*/
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$server_slave_replication = $GLOBALS['dbi']->fetchResult('SHOW SLAVE STATUS');
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/**
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* replication types
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*/
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$replication_types = array('master', 'slave');
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/**
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* define variables for master status
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*/
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$master_variables = array(
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'File',
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'Position',
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'Binlog_Do_DB',
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'Binlog_Ignore_DB',
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);
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/**
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* Define variables for slave status
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*/
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$slave_variables = array(
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'Slave_IO_State',
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'Master_Host',
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'Master_User',
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'Master_Port',
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'Connect_Retry',
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'Master_Log_File',
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'Read_Master_Log_Pos',
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'Relay_Log_File',
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'Relay_Log_Pos',
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'Relay_Master_Log_File',
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'Slave_IO_Running',
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'Slave_SQL_Running',
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'Replicate_Do_DB',
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'Replicate_Ignore_DB',
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'Replicate_Do_Table',
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'Replicate_Ignore_Table',
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'Replicate_Wild_Do_Table',
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'Replicate_Wild_Ignore_Table',
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'Last_Errno',
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'Last_Error',
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'Skip_Counter',
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'Exec_Master_Log_Pos',
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'Relay_Log_Space',
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'Until_Condition',
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'Until_Log_File',
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'Until_Log_Pos',
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'Master_SSL_Allowed',
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'Master_SSL_CA_File',
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'Master_SSL_CA_Path',
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'Master_SSL_Cert',
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'Master_SSL_Cipher',
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'Master_SSL_Key',
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'Seconds_Behind_Master',
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);
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/**
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* define important variables, which need to be watched for
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* correct running of replication in slave mode
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*
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* @usedby PMA_getHtmlForReplicationStatusTable()
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*/
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// TODO change to regexp or something, to allow for negative match.
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// To e.g. highlight 'Last_Error'
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//
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$slave_variables_alerts = array(
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'Slave_IO_Running' => 'No',
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'Slave_SQL_Running' => 'No',
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);
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$slave_variables_oks = array(
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'Slave_IO_Running' => 'Yes',
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'Slave_SQL_Running' => 'Yes',
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);
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// check which replication is available and
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// set $server_{master/slave}_status and assign values
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// replication info is more easily passed to functions
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$GLOBALS['replication_info'] = array();
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foreach ($replication_types as $type) {
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if (count(${"server_{$type}_replication"}) > 0) {
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$GLOBALS['replication_info'][$type]['status'] = true;
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} else {
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$GLOBALS['replication_info'][$type]['status'] = false;
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}
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if ($GLOBALS['replication_info'][$type]['status']) {
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if ($type == "master") {
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PMA_fillReplicationInfo(
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$type, 'Do_DB', $server_master_replication[0],
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'Binlog_Do_DB'
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);
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PMA_fillReplicationInfo(
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$type, 'Ignore_DB', $server_master_replication[0],
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'Binlog_Ignore_DB'
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);
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} elseif ($type == "slave") {
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PMA_fillReplicationInfo(
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$type, 'Do_DB', $server_slave_replication[0],
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'Replicate_Do_DB'
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);
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PMA_fillReplicationInfo(
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$type, 'Ignore_DB', $server_slave_replication[0],
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'Replicate_Ignore_DB'
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);
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PMA_fillReplicationInfo(
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$type, 'Do_Table', $server_slave_replication[0],
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'Replicate_Do_Table'
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);
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PMA_fillReplicationInfo(
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$type, 'Ignore_Table', $server_slave_replication[0],
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'Replicate_Ignore_Table'
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);
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PMA_fillReplicationInfo(
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$type, 'Wild_Do_Table', $server_slave_replication[0],
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'Replicate_Wild_Do_Table'
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);
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PMA_fillReplicationInfo(
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$type, 'Wild_Ignore_Table', $server_slave_replication[0],
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'Replicate_Wild_Ignore_Table'
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);
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}
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}
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}
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/**
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* Fill global replication_info variable.
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*
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* @param string $type Type: master, slave
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* @param string $replicationInfoKey Key in replication_info variable
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* @param array $mysqlInfo MySQL data about replication
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* @param string $mysqlKey MySQL key
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*
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* @return array
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*/
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function PMA_fillReplicationInfo(
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$type, $replicationInfoKey, $mysqlInfo, $mysqlKey
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) {
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$GLOBALS['replication_info'][$type][$replicationInfoKey]
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= empty($mysqlInfo[$mysqlKey])
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? array()
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: explode(
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",",
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$mysqlInfo[$mysqlKey]
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);
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return $GLOBALS['replication_info'][$type][$replicationInfoKey];
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}
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/**
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* Extracts database or table name from string
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*
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* @param string $string contains "dbname.tablename"
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* @param string $what what to extract (db|table)
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*
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* @return string the extracted part
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*/
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function PMA_extractDbOrTable($string, $what = 'db')
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{
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$list = explode(".", $string);
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if ('db' == $what) {
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return $list[0];
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} else {
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return $list[1];
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}
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}
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/**
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* Configures replication slave
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*
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* @param string $action possible values: START or STOP
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* @param string $control default: null,
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* possible values: SQL_THREAD or IO_THREAD or null.
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* If it is set to null, it controls both
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* SQL_THREAD and IO_THREAD
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* @param mixed $link mysql link
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*
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* @return mixed output of DatabaseInterface::tryQuery
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*/
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function PMA_Replication_Slave_control($action, $control = null, $link = null)
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{
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$action = mb_strtoupper($action);
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$control = mb_strtoupper($control);
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if ($action != "START" && $action != "STOP") {
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return -1;
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}
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if ($control != "SQL_THREAD" && $control != "IO_THREAD" && $control != null) {
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return -1;
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}
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return $GLOBALS['dbi']->tryQuery($action . " SLAVE " . $control . ";", $link);
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}
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/**
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* Changes master for replication slave
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*
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* @param string $user replication user on master
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* @param string $password password for the user
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* @param string $host master's hostname or IP
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* @param int $port port, where mysql is running
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* @param array $pos position of mysql replication,
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* array should contain fields File and Position
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* @param bool $stop shall we stop slave?
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* @param bool $start shall we start slave?
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* @param mixed $link mysql link
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*
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* @return string output of CHANGE MASTER mysql command
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*/
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function PMA_Replication_Slave_changeMaster($user, $password, $host, $port,
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$pos, $stop = true, $start = true, $link = null
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) {
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if ($stop) {
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PMA_Replication_Slave_control("STOP", null, $link);
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}
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$out = $GLOBALS['dbi']->tryQuery(
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'CHANGE MASTER TO ' .
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'MASTER_HOST=\'' . $host . '\',' .
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'MASTER_PORT=' . ($port * 1) . ',' .
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'MASTER_USER=\'' . $user . '\',' .
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'MASTER_PASSWORD=\'' . $password . '\',' .
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'MASTER_LOG_FILE=\'' . $pos["File"] . '\',' .
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'MASTER_LOG_POS=' . $pos["Position"] . ';', $link
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);
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if ($start) {
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PMA_Replication_Slave_control("START", null, $link);
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}
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return $out;
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}
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/**
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* This function provides connection to remote mysql server
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*
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* @param string $user mysql username
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* @param string $password password for the user
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* @param string $host mysql server's hostname or IP
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* @param int $port mysql remote port
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* @param string $socket path to unix socket
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*
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* @return mixed $link mysql link on success
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*/
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function PMA_Replication_connectToMaster(
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$user, $password, $host = null, $port = null, $socket = null
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) {
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$server = array();
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$server["host"] = PMA_sanitizeMySQLHost($host);
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$server["port"] = $port;
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$server["socket"] = $socket;
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// 5th parameter set to true means that it's an auxiliary connection
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// and we must not go back to login page if it fails
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return PMA_DBI_connect($user, $password, false, $server, true);
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}
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/**
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* Fetches position and file of current binary log on master
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*
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* @param mixed $link mysql link
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*
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* @return array an array containing File and Position in MySQL replication
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* on master server, useful for PMA_Replication_Slave_changeMaster
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*/
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function PMA_Replication_Slave_binLogMaster($link = null)
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{
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$data = $GLOBALS['dbi']->fetchResult('SHOW MASTER STATUS', null, null, $link);
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$output = array();
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if (! empty($data)) {
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$output["File"] = $data[0]["File"];
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$output["Position"] = $data[0]["Position"];
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}
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return $output;
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}
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