| Current File : /home/pacjaorg/public_html/copp/copp/wp-content/plugins/backwpup/inc/class-mysqldump.php |
<?php
use Symfony\Component\OptionsResolver\Options;
use Symfony\Component\OptionsResolver\OptionsResolver;
/**
* Class to create a MYSQL dump with mysqli as sql file.
*/
class BackWPup_MySQLDump
{
// Compression flags
public const COMPRESS_NONE = '';
public const COMPRESS_GZ = 'gz';
/**
* Table names of Tables in Database.
*/
public $tables_to_dump = [];
/**
* View names of Views in Database.
*/
public $views_to_dump = [];
/**
* Holder for mysqli resource.
*/
private $mysqli;
/**
* Whether we are connected to the database.
*
* @var bool
*/
private $connected = false;
/**
* Holder for dump file handle.
*/
private $handle;
/**
* Table names of Tables in Database.
*/
private $table_types = [];
/**
* Table information of Tables in Database.
*/
private $table_status = [];
/**
* Database name.
*/
private $dbname = '';
/**
* Compression to use
* empty for none
* gz for Gzip.
*/
private $compression = '';
/**
* Check params and makes confections
* gets the table information too.
*
* @param $args array with arguments
*
* @throws BackWPup_MySQLDump_Exception
*
* @global $wpdb wpdb
*/
public function __construct($args = [])
{
if (!class_exists(\mysqli::class)) {
throw new BackWPup_MySQLDump_Exception(__('No MySQLi extension found. Please install it.', 'backwpup'));
}
$resolver = new OptionsResolver();
$this->configureOptions($resolver);
$args = $resolver->resolve($args);
$driver = new mysqli_driver();
$mode = $driver->report_mode;
$driver->report_mode = MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT;
$this->connect($args);
$driver->report_mode = $mode;
//set charset
if (!empty($args['dbcharset'])) {
$this->setCharset($args['dbcharset']);
}
//set compression
$this->compression = $args['compression'];
//open file if set
if ($args['dumpfile']) {
if ($args['compression'] === self::COMPRESS_GZ) {
if (!function_exists('gzencode')) {
throw new BackWPup_MySQLDump_Exception(__('Functions for gz compression not available', 'backwpup'));
}
$this->handle = fopen('compress.zlib://' . $args['dumpfile'], 'ab');
} else {
$this->handle = fopen($args['dumpfile'], 'ab');
}
} else {
$this->handle = $args['dumpfilehandle'];
}
//check file handle
if (!$this->handle) {
throw new BackWPup_MySQLDump_Exception(__('Cannot open SQL backup file', 'backwpup'));
}
//get table info
$res = $this->mysqli->query('SHOW TABLE STATUS FROM `' . $this->dbname . '`');
++$GLOBALS[\wpdb::class]->num_queries;
if ($this->mysqli->error) {
throw new BackWPup_MySQLDump_Exception(sprintf(__('Database error %1$s for query %2$s', 'backwpup'), $this->mysqli->error, 'SHOW TABLE STATUS FROM `' . $this->dbname . '`'));
}
while ($tablestatus = $res->fetch_assoc()) {
$this->table_status[$tablestatus['Name']] = $tablestatus;
}
$res->close();
//get table names and types from Database
$res = $this->mysqli->query('SHOW FULL TABLES FROM `' . $this->dbname . '`');
++$GLOBALS[\wpdb::class]->num_queries;
if ($this->mysqli->error) {
throw new BackWPup_MySQLDump_Exception(sprintf(__('Database error %1$s for query %2$s', 'backwpup'), $this->mysqli->error, 'SHOW FULL TABLES FROM `' . $this->dbname . '`'));
}
while ($table = $res->fetch_array(MYSQLI_NUM)) {
$this->table_types[$table[0]] = $table[1];
$this->tables_to_dump[] = $table[0];
if ($table[1] === 'VIEW') {
$this->views_to_dump[] = $table[0];
$this->table_status[$table[0]]['Rows'] = 0;
}
}
$res->close();
}
/**
* Configure options.
*/
protected function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'dbhost' => DB_HOST,
'dbport' => null,
'dbsocket' => null,
'dbname' => DB_NAME,
'dbuser' => DB_USER,
'dbpassword' => DB_PASSWORD,
'dbcharset' => defined('DB_CHARSET') ? DB_CHARSET : 'utf8mb4',
'dumpfilehandle' => fopen('php://output', 'wb'),
'dumpfile' => null,
'dbclientflags' => defined('MYSQL_CLIENT_FLAGS') ? MYSQL_CLIENT_FLAGS : 0,
'compression' => function (Options $options) {
if ($options['dumpfile'] !== null
&& substr(strtolower((string) $options['dumpfile']), -3) === '.gz') {
return self::COMPRESS_GZ;
}
return self::COMPRESS_NONE;
},
]);
$port = $socket = null;
$resolver->setNormalizer('dbhost', function (Options $options, $value) use (&$port, &$socket) {
if (strpos($value, ':') !== false) {
[$value, $part] = array_map('trim', explode(':', $value, 2));
if (is_numeric($part)) {
$port = intval($part);
} elseif (!empty($part)) {
$socket = $part;
}
}
return $value ?: 'localhost';
});
$resolver->setDefault('dbport', function (Options $options) use (&$port) {
return $port;
});
$resolver->setDefault('dbsocket', function (Options $options) use (&$socket) {
return $socket;
});
$resolver->setAllowedValues('dumpfilehandle', function ($value) {
// Ensure handle is writable
$metadata = stream_get_meta_data($value);
return !($metadata['mode'][0] === 'r' && strpos($metadata['mode'], '+') === false);
});
$resolver->setAllowedValues('compression', [self::COMPRESS_NONE, self::COMPRESS_GZ]);
$resolver->setAllowedTypes('dbhost', 'string');
$resolver->setAllowedTypes('dbport', ['null', 'int']);
$resolver->setAllowedTypes('dbsocket', ['null', 'string']);
$resolver->setAllowedTypes('dbname', 'string');
$resolver->setAllowedTypes('dbuser', 'string');
$resolver->setAllowedTypes('dbpassword', 'string');
$resolver->setAllowedTypes('dbcharset', ['null', 'string']);
$resolver->setAllowedTypes('dumpfilehandle', 'resource');
$resolver->setAllowedTypes('dumpfile', ['null', 'string']);
$resolver->setAllowedTypes('dbclientflags', 'int');
}
/**
* Set the best available database charset.
*
* @param string $charset The charset to try setting
*
* @return string The set charset
*/
public function setCharset($charset)
{
if ($charset === 'utf8' && $this->getConnection()->set_charset('utf8mb4') === true) {
return 'utf8mb4';
}
if ($this->getConnection()->set_charset($charset) === true) {
return $charset;
}
if ($charset === 'utf8mb4' && $this->getConnection()->set_charset('utf8') === true) {
return 'utf8';
}
trigger_error(
sprintf(
__('Cannot set DB charset to %s', 'backwpup'),
$charset
),
E_USER_WARNING
);
return false;
}
/**
* Get the database connection.
*
* @return \mysqli
*/
protected function getConnection()
{
if ($this->mysqli === null) {
$this->mysqli = mysqli_init();
}
return $this->mysqli;
}
/**
* Whether the database is connected.
*
* @return bool
*/
public function isConnected()
{
return $this->connected === true;
}
/**
* Connect to the database.
*
* @param array $args Connection parameters
*/
protected function connect(array $args)
{
if ($this->isConnected()) {
return;
}
$mysqli = $this->getConnection();
if (!$mysqli->options(MYSQLI_OPT_CONNECT_TIMEOUT, 5)) {
trigger_error(__('Setting of MySQLi connection timeout failed', 'backwpup'), E_USER_WARNING); // phpcs:ignore
}
//connect to Database
try {
$mysqli->real_connect(
$args['dbhost'],
$args['dbuser'],
$args['dbpassword'],
$args['dbname'],
$args['dbport'],
$args['dbsocket'],
$args['dbclientflags']
);
} catch (\mysqli_sql_exception $e) {
throw new BackWPup_MySQLDump_Exception(
sprintf(
__('Cannot connect to MySQL database (%1$d: %2$s)', 'backwpup'),
$e->getCode(),
$e->getMessage()
)
);
}
//set db name
$this->dbname = $args['dbname'];
// We are now connected
$this->connected = true;
}
/**
* Get the name of the database.
*
* @return string
*/
protected function getDbName()
{
return $this->dbname;
}
/**
* Report a query error.
*
* @param \mysqli_sql_exception $exception The thrown exception
* @param string $query The query that caused the error
*/
protected function logQueryError(mysqli_sql_exception $exception, $query)
{
// phpcs:disable WordPress.PHP.DevelopmentFunctions.error_log_trigger_error, WordPress.XSS.EscapeOutput.OutputNotEscaped
trigger_error(
sprintf(
__('Database error: %1$s. Query: %2$s', 'backwpup'),
$exception->getMessage(),
$query
),
E_USER_WARNING
);
// phpcs:enable WordPress.PHP.DevelopmentFunctions.error_log_trigger_error. WordPress.XSS.EscapeOutput.OutputNotEscaped
}
/**
* Send a query to the database.
*
* @param string $query The query to execute
*
* @return mixed The result of the query
*/
protected function query($sql)
{
$result = $this->getConnection()->query($sql);
backwpup_wpdb()->num_queries++;
return $result;
}
/**
* Start the dump.
*/
public function execute()
{
//increase time limit
@set_time_limit(300);
//write dump head
$this->dump_head();
//write tables
foreach ($this->tables_to_dump as $table) {
$this->dump_table_head($table);
$this->dump_table($table);
$this->dump_table_footer($table);
}
//write footer
$this->dump_footer();
}
/**
* Write Dump Header.
*
* @param bool $wp_info Dump WordPress info in dump head
*/
public function dump_head($wp_info = false)
{
// get sql timezone
$res = $this->mysqli->query('SELECT @@time_zone');
++$GLOBALS[\wpdb::class]->num_queries;
$mysqltimezone = $res->fetch_row();
$mysqltimezone = $mysqltimezone[0];
$res->close();
//For SQL always use \n as MySQL wants this on all platforms.
$dbdumpheader = "-- ---------------------------------------------------------\n";
$dbdumpheader .= '-- Backup with BackWPup ver.: ' . BackWPup::get_plugin_data('Version') . "\n";
$dbdumpheader .= "-- http://backwpup.com/\n";
if ($wp_info) {
$dbdumpheader .= '-- Blog Name: ' . get_bloginfo('name') . "\n";
$dbdumpheader .= '-- Blog URL: ' . trailingslashit(get_bloginfo('url')) . "\n";
$dbdumpheader .= '-- Blog ABSPATH: ' . trailingslashit(str_replace('\\', '/', (string) ABSPATH)) . "\n";
$dbdumpheader .= '-- Blog Charset: ' . get_bloginfo('charset') . "\n";
$dbdumpheader .= '-- Table Prefix: ' . $GLOBALS[\wpdb::class]->prefix . "\n";
}
$dbdumpheader .= '-- Database Name: ' . $this->dbname . "\n";
$dbdumpheader .= '-- Backup on: ' . date('Y-m-d H:i.s', current_time('timestamp')) . "\n";
$dbdumpheader .= "-- ---------------------------------------------------------\n\n";
//for better import with mysql client
$dbdumpheader .= "/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;\n";
$dbdumpheader .= "/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;\n";
$dbdumpheader .= "/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;\n";
$dbdumpheader .= '/*!40101 SET NAMES ' . $this->mysqli->character_set_name() . " */;\n";
$dbdumpheader .= "/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;\n";
$dbdumpheader .= "/*!40103 SET TIME_ZONE='" . $mysqltimezone . "' */;\n";
$dbdumpheader .= "/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;\n";
$dbdumpheader .= "/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;\n";
$dbdumpheader .= "/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;\n";
$dbdumpheader .= "/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;\n\n";
$this->write($dbdumpheader);
}
/**
* Write Dump Footer with dump of functions and procedures.
*/
public function dump_footer()
{
//dump Views
foreach ($this->views_to_dump as $view) {
$this->dump_view_table_head($view);
}
//dump procedures and functions
$this->write("\n--\n-- Backup routines for database '" . $this->dbname . "'\n--\n");
// Temporarily set mysqli to throw exceptions
$driver = new \mysqli_driver();
$mode = $driver->report_mode;
$driver->report_mode = MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT;
// Dump Functions
$this->dump_functions();
// Dump Procedures
$this->dump_procedures();
// Dump Triggers
$this->dump_triggers();
// Restore report mode for other methods that do not support exceptions yet
// This should be changed ASAP to support SQL exceptions globally
$driver->report_mode = $mode;
//for better import with mysql client
$dbdumpfooter = "\n/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;\n";
$dbdumpfooter .= "/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;\n";
$dbdumpfooter .= "/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;\n";
$dbdumpfooter .= "/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;\n";
$dbdumpfooter .= "/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;\n";
$dbdumpfooter .= "/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;\n";
$dbdumpfooter .= "/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;\n";
$dbdumpfooter .= "/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;\n";
$dbdumpfooter .= "\n-- Backup completed on " . date('Y-m-d H:i:s', current_time('timestamp')) . "\n";
$this->write($dbdumpfooter);
}
/**
* Dump table structure.
*
* @param string $table name of Table to dump
*
* @throws BackWPup_MySQLDump_Exception
*
* @return int Size of table
*/
public function dump_table_head($table)
{
//dump View
if ($this->table_types[$table] === 'VIEW') {
//Dump the view table structure
$fields = [];
$res = $this->mysqli->query('SELECT * FROM `' . $table . '` LIMIT 1');
++$GLOBALS[\wpdb::class]->num_queries;
if ($this->mysqli->error) {
trigger_error(sprintf(__('Database error %1$s for query %2$s', 'backwpup'), $this->mysqli->error, 'SELECT * FROM `' . $table . '` LIMIT 1'), E_USER_WARNING);
} else {
$fields = $res->fetch_fields();
$res->close();
}
if ($res) {
$tablecreate = "\n--\n-- Temporary table structure for view `" . $table . "`\n--\n\n";
$tablecreate .= 'DROP TABLE IF EXISTS `' . $table . "`;\n";
$tablecreate .= '/*!50001 DROP VIEW IF EXISTS `' . $table . "`*/;\n";
$tablecreate .= "/*!40101 SET @saved_cs_client = @@character_set_client */;\n";
$tablecreate .= "/*!40101 SET character_set_client = '" . $this->mysqli->character_set_name() . "' */;\n";
$tablecreate .= 'CREATE TABLE `' . $table . "` (\n";
foreach ($fields as $field) {
$tablecreate .= ' `' . $field->orgname . "` tinyint NOT NULL,\n";
}
$tablecreate = substr($tablecreate, 0, -2) . "\n";
$tablecreate .= ");\n";
$tablecreate .= "/*!40101 SET character_set_client = @saved_cs_client */;\n";
$this->write($tablecreate);
}
return 0;
}
//dump normal Table
$tablecreate = "\n--\n-- Table structure for `" . $table . "`\n--\n\n";
$tablecreate .= 'DROP TABLE IF EXISTS `' . $table . "`;\n";
$tablecreate .= "/*!40101 SET @saved_cs_client = @@character_set_client */;\n";
$tablecreate .= "/*!40101 SET character_set_client = '" . $this->mysqli->character_set_name() . "' */;\n";
//Dump the table structure
$res = $this->mysqli->query('SHOW CREATE TABLE `' . $table . '`');
++$GLOBALS[\wpdb::class]->num_queries;
if ($this->mysqli->error) {
trigger_error(sprintf(__('Database error %1$s for query %2$s', 'backwpup'), $this->mysqli->error, 'SHOW CREATE TABLE `' . $table . '`'), E_USER_WARNING);
} else {
$createtable = str_replace( '"', '`', $res->fetch_assoc() );
$res->close();
$tablecreate .= $createtable['Create Table'] . ";\n";
$tablecreate .= "/*!40101 SET character_set_client = @saved_cs_client */;\n";
$this->write($tablecreate);
if ($this->table_status[$table]['Engine'] !== 'MyISAM') {
$this->table_status[$table]['Rows'] = '~' . $this->table_status[$table]['Rows'];
}
if ($this->table_status[$table]['Rows'] !== 0) {
//Dump Table data
$this->write("\n--\n-- Backup data for table `" . $table . "`\n--\n\nLOCK TABLES `" . $table . "` WRITE;\n/*!40000 ALTER TABLE `" . $table . "` DISABLE KEYS */;\n");
}
return $this->table_status[$table]['Rows'];
}
return 0;
}
/**
* Dump view structure.
*
* @param string $view name of Table to dump
*
* @throws BackWPup_MySQLDump_Exception
*/
public function dump_view_table_head($view): void
{
//Dump the view structure
$res = $this->mysqli->query('SHOW CREATE VIEW `' . $view . '`');
++$GLOBALS[\wpdb::class]->num_queries;
if ($this->mysqli->error) {
trigger_error(sprintf(__('Database error %1$s for query %2$s', 'backwpup'), $this->mysqli->error, 'SHOW CREATE VIEW `' . $view . '`'), E_USER_WARNING);
} else {
$createview = $res->fetch_assoc();
$res->close();
$tablecreate = "\n--\n-- View structure for `" . $view . "`\n--\n\n";
$tablecreate .= 'DROP TABLE IF EXISTS `' . $view . "`;\n";
$tablecreate .= 'DROP VIEW IF EXISTS `' . $view . "`;\n";
$tablecreate .= "/*!40101 SET @saved_cs_client = @@character_set_client */;\n";
$tablecreate .= "/*!40101 SET character_set_client = '" . $this->mysqli->character_set_name() . "' */;\n";
$tablecreate .= $createview['Create View'] . ";\n";
$tablecreate .= "/*!40101 SET character_set_client = @saved_cs_client */;\n";
$this->write($tablecreate);
}
}
/**
* Dump table footer.
*
* @param string $table name of Table to dump
*
* @return int Size of table
*/
public function dump_table_footer($table): void
{
if ($this->table_status[$table]['Rows'] !== 0) {
$this->write('/*!40000 ALTER TABLE `' . $table . "` ENABLE KEYS */;\nUNLOCK TABLES;\n");
}
}
/**
* Dump table Data.
*
* @param string $table name of Table to dump
* @param int $start Start of lengh paramter
* @param int $length how many
*
* @throws BackWPup_MySQLDump_Exception
*
* @return int done records in this backup
*/
public function dump_table($table, $start = 0, $length = 0)
{
if (!is_numeric($start) || $start < 0) {
throw new BackWPup_MySQLDump_Exception(sprintf(__('Start for table backup is not correctly set: %1$s', 'backwpup'), $start));
}
if (!is_numeric($length) || $length < 0) {
throw new BackWPup_MySQLDump_Exception(sprintf(__('Length for table backup is not correctly set: %1$s', 'backwpup'), $length));
}
$done_records = 0;
if ($this->get_table_type_for($table) === 'VIEW') {
return $done_records;
}
//get data from table
try {
$res = $this->do_table_query($table, $start, $length);
} catch (BackWPup_MySQLDump_Exception $e) {
trigger_error(sprintf(__('Database error %1$s for query %2$s', 'backwpup'), $e->getMessage(), 'SELECT * FROM `' . $table . '`'), E_USER_WARNING);
return 0;
}
$fieldsarray = [];
$fieldinfo = [];
$fields = $res->fetch_fields();
$i = 0;
foreach ($fields as $field) {
$fieldsarray[$i] = $field->orgname;
$fieldinfo[$fieldsarray[$i]] = $field;
++$i;
}
$dump = '';
while ($data = $res->fetch_assoc()) {
$values = [];
foreach ($data as $key => $value) {
if ($value === null) { // Make Value NULL to string NULL
$value = 'NULL';
} elseif (in_array((int) $fieldinfo[$key]->type, [MYSQLI_TYPE_DECIMAL, MYSQLI_TYPE_NEWDECIMAL, MYSQLI_TYPE_BIT, MYSQLI_TYPE_TINY, MYSQLI_TYPE_SHORT, MYSQLI_TYPE_LONG, MYSQLI_TYPE_FLOAT, MYSQLI_TYPE_DOUBLE, MYSQLI_TYPE_LONGLONG, MYSQLI_TYPE_INT24, MYSQLI_TYPE_YEAR], true)) {//is value numeric no esc
$value = empty($value) ? 0 : $value;
} elseif (in_array((int) $fieldinfo[$key]->type, [MYSQLI_TYPE_TIMESTAMP, MYSQLI_TYPE_DATE, MYSQLI_TYPE_TIME, MYSQLI_TYPE_DATETIME, MYSQLI_TYPE_NEWDATE], true)) {//date/time types
$value = "'{$value}'";
} elseif ($fieldinfo[$key]->flags & MYSQLI_BINARY_FLAG) {//is value binary
$hex = unpack('H*', $value);
$value = empty($value) ? "''" : "0x{$hex[1]}";
} else {
$value = "'" . $this->escapeString($value) . "'";
}
$values[] = $value;
}
//new query in dump on more than 50000 chars.
if (empty($dump)) {
$dump = 'INSERT INTO `' . $table . '` (`' . implode('`, `', $fieldsarray) . "`) VALUES \n";
}
if (strlen($dump) <= 50000) {
$dump .= '(' . implode(', ', $values) . "),\n";
} else {
$dump .= '(' . implode(', ', $values) . ");\n";
$this->write($dump);
$dump = '';
}
++$done_records;
}
if (!empty($dump)) {
// Remove trailing , and newline.
$dump = substr($dump, 0, -2) . ";\n";
$this->write($dump);
}
$res->close();
return $done_records;
}
/**
* Dump functions.
*
* Dumps all functions found in the database.
*/
protected function dump_functions()
{
try {
$statusResult = $this->query('SHOW FUNCTION STATUS');
} catch (\mysqli_sql_exception $e) {
$this->logQueryError($e, 'SHOW FUNCTION STATUS');
return;
}
while ($function = $statusResult->fetch_assoc()) {
if ($this->getDbName() !== $function['Db']) {
continue;
}
$query = sprintf(
'SHOW CREATE FUNCTION `%1$s`.`%2$s`',
$function['Db'],
$function['Name']
);
try {
$createResult = $this->query($query);
$createFunction = $createResult->fetch_assoc();
$createResult->close();
if ($createFunction === null) {
continue;
}
$sql = sprintf(
"\n--\n" .
"-- Function structure for %1\$s\n" .
"--\n\n" .
"/*!50003 DROP FUNCTION IF EXISTS `%1\$s` */;\n" .
"/*!50003 SET @saved_cs_client = @@character_set_client */ ;\n" .
"/*!50003 SET @saved_cs_results = @@character_set_results */ ;\n" .
"/*!50003 SET @saved_col_connection = @@collation_connection */ ;\n" .
"/*!50003 SET character_set_client = %2\$s */ ;\n" .
"/*!50003 SET character_set_results = %2\$s */ ;\n" .
"/*!50003 SET collation_connection = %3\$s */ ;\n" .
"/*!50003 SET @saved_sql_mode = @@sql_mode */ ;\n" .
"/*!50003 SET sql_mode = '%4\$s' */ ;\n" .
"DELIMITER ;;\n" .
"%5\$s ;;\n" .
"DELIMITER ;\n" .
"/*!50003 SET sql_mode = @saved_sql_mode */ ;\n" .
"/*!50003 SET character_set_client = @saved_cs_client */ ;\n" .
"/*!50003 SET character_set_results = @saved_cs_results */ ;\n" .
"/*!50003 SET collation_connection = @saved_col_connection */ ;\n",
$createFunction['Function'],
$createFunction['character_set_client'],
$createFunction['collation_connection'],
$createFunction['sql_mode'],
$createFunction['Create Function']
);
$this->write($sql);
} catch (\mysqli_sql_exception $e) {
$this->logQueryError($e, $query);
}
}
$statusResult->close();
}
/**
* Dump procedures.
*
* Dumps all stored procedures found in the database.
*/
protected function dump_procedures()
{
try {
$statusResult = $this->query('SHOW PROCEDURE STATUS');
} catch (mysqli_sql_exception $e) {
$this->logQueryError($e, 'SHOW PROCEDURE STATUS');
return;
}
while ($procedure = $statusResult->fetch_assoc()) {
if ($this->getDbName() !== $procedure['Db']) {
continue;
}
$query = sprintf(
'SHOW CREATE PROCEDURE `%1$s`.`%2$s`',
$procedure['Db'],
$procedure['Name']
);
try {
$createResult = $this->query($query);
$createProcedure = $createResult->fetch_assoc();
$createResult->close();
if ($createProcedure === null) {
continue;
}
$sql = sprintf(
"\n--\n" .
"-- Procedure structure for %1\$s\n" .
"--\n\n" .
"/*!50003 DROP PROCEDURE IF EXISTS `%1\$s` */;\n" .
"/*!50003 SET @saved_cs_client = @@character_set_client */ ;\n" .
"/*!50003 SET @saved_cs_results = @@character_set_results */ ;\n" .
"/*!50003 SET @saved_col_connection = @@collation_connection */ ;\n" .
"/*!50003 SET character_set_client = %2\$s */ ;\n" .
"/*!50003 SET character_set_results = %2\$s */ ;\n" .
"/*!50003 SET collation_connection = %3\$s */ ;\n" .
"/*!50003 SET @saved_sql_mode = @@sql_mode */ ;\n" .
"/*!50003 SET sql_mode = '%4\$s' */ ;\n" .
"DELIMITER ;;\n" .
"%5\$s ;;\n" .
"DELIMITER ;\n" .
"/*!50003 SET sql_mode = @saved_sql_mode */ ;\n" .
"/*!50003 SET character_set_client = @saved_cs_client */ ;\n" .
"/*!50003 SET character_set_results = @saved_cs_results */ ;\n" .
"/*!50003 SET collation_connection = @saved_col_connection */ ;\n",
$createProcedure['Procedure'],
$createProcedure['character_set_client'],
$createProcedure['collation_connection'],
$createProcedure['sql_mode'],
$createProcedure['Create Procedure']
);
$this->write($sql);
} catch (mysqli_sql_exception $e) {
$this->logQueryError($e, $query);
}
}
$statusResult->close();
}
/**
* Dump triggers.
*
* Dumps all triggers found in the database.
*/
protected function dump_triggers()
{
$query = sprintf('SHOW TRIGGERS FROM `%1$s`', $this->getDbName());
try {
$statusResult = $this->query($query);
} catch (\mysqli_sql_exception $e) {
$this->logQueryError($e, $query);
return;
}
while ($trigger = $statusResult->fetch_assoc()) {
$query = sprintf(
'SHOW CREATE TRIGGER `%1$s`.`%2$s`',
$this->getDbName(),
$trigger['Trigger']
);
try {
$createResult = $this->query($query);
$createTrigger = $createResult->fetch_assoc();
$createResult->close();
if ($createTrigger === null) {
continue;
}
$sql = sprintf(
"\n--\n" .
"-- Trigger structure for %1\$s\n" .
"--\n\n" .
"/*!50032 DROP TRIGGER IF EXISTS `%1\$s` */;\n" .
"/*!50003 SET @saved_cs_client = @@character_set_client */ ;\n" .
"/*!50003 SET @saved_cs_results = @@character_set_results */ ;\n" .
"/*!50003 SET @saved_col_connection = @@collation_connection */ ;\n" .
"/*!50003 SET character_set_client = %2\$s */ ;\n" .
"/*!50003 SET character_set_results = %2\$s */ ;\n" .
"/*!50003 SET collation_connection = %3\$s */ ;\n" .
"/*!50003 SET @saved_sql_mode = @@sql_mode */ ;\n" .
"/*!50003 SET sql_mode = '%4\$s' */ ;\n" .
"DELIMITER ;;\n" .
"/*!50003 %5\$s */;;\n" .
"DELIMITER ;\n" .
"/*!50003 SET sql_mode = @saved_sql_mode */ ;\n" .
"/*!50003 SET character_set_client = @saved_cs_client */ ;\n" .
"/*!50003 SET character_set_results = @saved_cs_results */ ;\n" .
"/*!50003 SET collation_connection = @saved_col_connection */ ;\n",
$createTrigger['Trigger'],
$createTrigger['character_set_client'],
$createTrigger['collation_connection'],
$createTrigger['sql_mode'],
$createTrigger['SQL Original Statement']
);
$this->write($sql);
} catch (\mysqli_sql_exception $e) {
$this->logQueryError($e, $query);
}
}
$statusResult->close();
}
/**
* Writes data to handle and compress.
*
* @param $data string to write
*
* @throws BackWPup_MySQLDump_Exception
*/
protected function write($data)
{
$written = fwrite($this->handle, (string) $data);
if (!$written) {
throw new BackWPup_MySQLDump_Exception(__('Error while writing file!', 'backwpup'));
}
}
/**
* Closes all confections on shutdown.
*/
public function __destruct()
{
//close MySQL connection
if ($this->mysqli !== null) {
$this->mysqli->close();
}
//close file handle
if (is_resource($this->handle)) {
fclose($this->handle);
}
}
/**
* Get table type for given table.
*
* @param string $table the table to look up the type for
*
* @return string The table type if found
*/
protected function get_table_type_for($table)
{
if (isset($this->table_types[$table])) {
return $this->table_types[$table];
}
return null;
}
/**
* Perform query to fetch table rows.
*
* @param string $table The table on which to perform the query
* @param int $start The record to start at
* @param int $length How many records to fetch
*
* @throws \BackWPup_MySQLDump_Exception In case of mysql error
*
* @return \mysqli_result The resulting query
*/
protected function do_table_query($table, $start, $length)
{
if ($length == 0 && $start == 0) {
$res = $this->mysqli->query('SELECT * FROM `' . $table . '` ', MYSQLI_USE_RESULT);
} else {
$res = $this->mysqli->query('SELECT * FROM `' . $table . '` LIMIT ' . $start . ', ' . $length, MYSQLI_USE_RESULT);
}
++$GLOBALS[\wpdb::class]->num_queries;
if ($this->mysqli->error) {
throw new BackWPup_MySQLDump_Exception($this->mysqli->error);
}
return $res;
}
/**
* Escapes a string for MySQL.
*
* @param string $value The value to escape
*
* @return string The escaped string
*/
protected function escapeString($value)
{
return $this->mysqli->real_escape_string($value);
}
}
/**
* Exception Handler.
*/
class BackWPup_MySQLDump_Exception extends Exception
{
}