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@m4s0
Created October 6, 2015 20:18
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Magento dump without mysqdump
<?php
ini_set("max_execution_time", 0);
ini_set('memory_limit', '1024M');
$xml = simplexml_load_file("app/etc/local.xml");
$host = (string)$xml->global->resources->default_setup->connection->host;
$dbname = (string)$xml->global->resources->default_setup->connection->dbname;
$username = (string)$xml->global->resources->default_setup->connection->username;
$password = (string)$xml->global->resources->default_setup->connection->password;
include_once('Mysqldump.php');
$dumpSettings = array(
'compress' => Ifsnop\Mysqldump\Mysqldump::GZIP,
'no-data' => false,
'add-drop-table' => true,
'single-transaction' => true,
'lock-tables' => true,
'add-locks' => true,
'extended-insert' => true,
'disable-foreign-keys-check' => true,
'skip-triggers' => false,
'add-drop-trigger' => true,
'databases' => true,
'add-drop-database' => true,
'hex-blob' => true
);
$dump = new Ifsnop\Mysqldump\Mysqldump("mysql:host=" . $host . ";dbname=" . $dbname, $username, $password, $dumpSettings);
$dump->start('dump.sql.gz');
<?php
/**
* Mysqldump File Doc Comment
*
* PHP version 5
*
* @category Library
* @package Ifsnop\Mysqldump
* @author Michael J. Calkins <clouddueling@github.com>
* @author Diego Torres <ifsnop@github.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU General Public License
* @link https://github.com/ifsnop/mysqldump-php
*
*/
namespace Ifsnop\Mysqldump;
use Exception;
use PDO;
use PDOException;
/**
* Mysqldump Class Doc Comment
*
* @category Library
* @package Ifsnop\Mysqldump
* @author Michael J. Calkins <clouddueling@github.com>
* @author Diego Torres <ifsnop@github.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU General Public License
* @link https://github.com/ifsnop/mysqldump-php
*
*/
class Mysqldump
{
// Same as mysqldump
const MAXLINESIZE = 1000000;
// Available compression methods as constants
const GZIP = 'Gzip';
const BZIP2 = 'Bzip2';
const NONE = 'None';
// Available connection strings
const UTF8 = 'utf8';
const UTF8MB4 = 'utf8mb4';
/**
* Database username
* @var string
*/
public $user;
/**
* Database password
* @var string
*/
public $pass;
/**
* Connection string for PDO
* @var string
*/
public $dsn;
/**
* Destination filename, defaults to stdout
* @var string
*/
public $fileName = 'php://output';
// Internal stuff
private $tables = array();
private $views = array();
private $triggers = array();
private $dbHandler;
private $dbType;
private $compressManager;
private $typeAdapter;
private $dumpSettings = array();
private $pdoSettings = array();
private $version;
private $tableColumnTypes = array();
/**
* database name, parsed from dsn
* @var string
*/
private $dbName;
/**
* host name, parsed from dsn
* @var string
*/
private $host;
/**
* dsn string parsed as an array
* @var array
*/
private $dsnArray = array();
/**
* Constructor of Mysqldump. Note that in the case of an SQLite database
* connection, the filename must be in the $db parameter.
*
* @param string $dsn PDO DSN connection string
* @param string $user SQL account username
* @param string $pass SQL account password
* @param array $dumpSettings SQL database settings
* @param array $pdoSettings PDO configured attributes
*/
public function __construct(
$dsn = '',
$user = '',
$pass = '',
$dumpSettings = array(),
$pdoSettings = array()
) {
$dumpSettingsDefault = array(
'include-tables' => array(),
'exclude-tables' => array(),
'compress' => Mysqldump::NONE,
'no-data' => false,
'add-drop-table' => false,
'single-transaction' => true,
'lock-tables' => true,
'add-locks' => true,
'extended-insert' => true,
'disable-keys' => true,
'where' => '',
'no-create-info' => false,
'skip-triggers' => false,
'add-drop-trigger' => true,
'hex-blob' => true, /* faster than escaped content */
'databases' => false,
'add-drop-database' => false,
'skip-tz-utc' => false,
'no-autocommit' => true,
'default-character-set' => Mysqldump::UTF8,
'skip-comments' => false,
'skip-dump-date' => false,
'init_commands' => array(),
/* deprecated */
'disable-foreign-keys-check' => true
);
$pdoSettingsDefault = array(
PDO::ATTR_PERSISTENT => true,
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => false
);
$this->user = $user;
$this->pass = $pass;
$this->parseDsn($dsn);
$this->pdoSettings = self::array_replace_recursive($pdoSettingsDefault, $pdoSettings);
$this->dumpSettings = self::array_replace_recursive($dumpSettingsDefault, $dumpSettings);
$this->dumpSettings['init_commands'][] = "SET NAMES " . $this->dumpSettings['default-character-set'];
if (false === $this->dumpSettings['skip-tz-utc']) {
$this->dumpSettings['init_commands'][] = "SET TIME_ZONE='+00:00'";
}
$diff = array_diff(array_keys($this->dumpSettings), array_keys($dumpSettingsDefault));
if (count($diff)>0) {
throw new Exception("Unexpected value in dumpSettings: (" . implode(",", $diff) . ")");
}
// Create a new compressManager to manage compressed output
$this->compressManager = CompressManagerFactory::create($this->dumpSettings['compress']);
}
/**
* Custom array_replace_recursive to be used if PHP < 5.3
* Replaces elements from passed arrays into the first array recursively
*
* @param array $array1 The array in which elements are replaced
* @param array $array2 The array from which elements will be extracted
*
* @return array Returns an array, or NULL if an error occurs.
*/
public static function array_replace_recursive($array1, $array2)
{
if (function_exists('array_replace_recursive')) {
return array_replace_recursive($array1, $array2);
}
foreach ($array2 as $key => $value) {
if (is_array($value)) {
$array1[$key] = self::array_replace_recursive($array1[$key], $value);
} else {
$array1[$key] = $value;
}
}
return $array1;
}
/**
* Parse DSN string and extract dbname value
* Several examples of a DSN string
* mysql:host=localhost;dbname=testdb
* mysql:host=localhost;port=3307;dbname=testdb
* mysql:unix_socket=/tmp/mysql.sock;dbname=testdb
*
* @param string $dsn dsn string to parse
*/
private function parseDsn($dsn)
{
if (empty($dsn) || (false === ($pos = strpos($dsn, ":")))) {
throw new Exception("Empty DSN string");
}
$this->dsn = $dsn;
$this->dbType = strtolower(substr($dsn, 0, $pos));
if (empty($this->dbType)) {
throw new Exception("Missing database type from DSN string");
}
$dsn = substr($dsn, $pos + 1);
foreach(explode(";", $dsn) as $kvp) {
$kvpArr = explode("=", $kvp);
$this->dsnArray[$kvpArr[0]] = strtolower($kvpArr[1]);
}
if (empty($this->dsnArray['host']) &&
empty($this->dsnArray['unix_socket'])) {
throw new Exception("Missing host from DSN string");
}
$this->host = (!empty($this->dsnArray['host'])) ?
$this->dsnArray['host'] :
$this->dsnArray['unix_socket'];
if (empty($this->dsnArray['dbname'])) {
throw new Exception("Missing database name from DSN string");
}
$this->dbName = $this->dsnArray['dbname'];
return true;
}
/**
* Connect with PDO
*
* @return null
*/
private function connect()
{
// Connecting with PDO
try {
switch ($this->dbType) {
case 'sqlite':
$this->dbHandler = @new PDO("sqlite:" . $this->dbName, null, null, $this->pdoSettings);
break;
case 'mysql':
case 'pgsql':
case 'dblib':
$this->dbHandler = @new PDO(
$this->dsn,
$this->user,
$this->pass,
$this->pdoSettings
);
// Execute init commands once connected
foreach($this->dumpSettings['init_commands'] as $stmt) {
$this->dbHandler->exec($stmt);
}
// Store server version
$this->version = $this->dbHandler->getAttribute(PDO::ATTR_SERVER_VERSION);
break;
default:
throw new Exception("Unsupported database type (" . $this->dbType . ")");
}
} catch (PDOException $e) {
throw new Exception(
"Connection to " . $this->dbType . " failed with message: " .
$e->getMessage()
);
}
$this->dbHandler->setAttribute(PDO::ATTR_ORACLE_NULLS, PDO::NULL_NATURAL);
$this->typeAdapter = TypeAdapterFactory::create($this->dbType, $this->dbHandler);
}
/**
* Main call
*
* @param string $filename Name of file to write sql dump to
* @return null
*/
public function start($filename = '')
{
// Output file can be redefined here
if (!empty($filename)) {
$this->fileName = $filename;
}
// Connect to database
$this->connect();
// Create output file
$this->compressManager->open($this->fileName);
// Write some basic info to output file
$this->compressManager->write($this->getDumpFileHeader());
// Store server settings and use sanner defaults to dump
$this->compressManager->write(
$this->typeAdapter->backup_parameters($this->dumpSettings)
);
if ($this->dumpSettings['databases']) {
$this->compressManager->write(
$this->typeAdapter->getDatabaseHeader($this->dbName)
);
if ($this->dumpSettings['add-drop-database']) {
$this->compressManager->write(
$this->typeAdapter->add_drop_database($this->dbName)
);
}
}
// Get table, view and trigger structures from database
$this->getDatabaseStructure();
if ($this->dumpSettings['databases']) {
$this->compressManager->write(
$this->typeAdapter->databases($this->dbName)
);
}
// If there still are some tables/views in include-tables array,
// that means that some tables or views weren't found.
// Give proper error and exit.
if (0 < count($this->dumpSettings['include-tables'])) {
$name = implode(",", $this->dumpSettings['include-tables']);
throw new Exception("Table or View (" . $name . ") not found in database");
}
$this->exportTables();
$this->exportViews();
$this->exportTriggers();
// Restore saved parameters
$this->compressManager->write(
$this->typeAdapter->restore_parameters($this->dumpSettings)
);
// Write some stats to output file
$this->compressManager->write($this->getDumpFileFooter());
// Close output file
$this->compressManager->close();
}
/**
* Returns header for dump file
*
* @return string
*/
private function getDumpFileHeader()
{
$header = '';
if (!$this->dumpSettings['skip-comments']) {
// Some info about software, source and time
$header = "-- mysqldump-php https://github.com/ifsnop/mysqldump-php" . PHP_EOL .
"--" . PHP_EOL .
"-- Host: {$this->host}\tDatabase: {$this->dbName}" . PHP_EOL .
"-- ------------------------------------------------------" . PHP_EOL;
if (!empty($this->version)) {
$header .= "-- Server version \t" . $this->version . PHP_EOL;
}
$header .= "-- Date: " . date('r') . PHP_EOL . PHP_EOL;
}
return $header;
}
/**
* Returns footer for dump file
*
* @return string
*/
private function getDumpFileFooter()
{
$footer = '';
if (!$this->dumpSettings['skip-comments']) {
$footer .= '-- Dump completed';
if (!$this->dumpSettings['skip-dump-date']) {
$footer .= ' on: ' . date('r');
}
$footer .= PHP_EOL;
}
return $footer;
}
/**
* Reads table and views names from database.
* Fills $this->tables array so they will be dumped later.
*
* @return null
*/
private function getDatabaseStructure()
{
// Listing all tables from database
if (empty($this->dumpSettings['include-tables'])) {
// include all tables for now, blacklisting happens later
foreach ($this->dbHandler->query($this->typeAdapter->show_tables($this->dbName)) as $row) {
array_push($this->tables, current($row));
}
} else {
// include only the tables mentioned in include-tables
foreach ($this->dbHandler->query($this->typeAdapter->show_tables($this->dbName)) as $row) {
if (in_array(current($row), $this->dumpSettings['include-tables'], true)) {
array_push($this->tables, current($row));
$elem = array_search(
current($row),
$this->dumpSettings['include-tables']
);
unset($this->dumpSettings['include-tables'][$elem]);
}
}
}
// Listing all views from database
if (empty($this->dumpSettings['include-tables'])) {
// include all views for now, blacklisting happens later
foreach ($this->dbHandler->query($this->typeAdapter->show_views($this->dbName)) as $row) {
array_push($this->views, current($row));
}
} else {
// include only the tables mentioned in include-tables
foreach ($this->dbHandler->query($this->typeAdapter->show_views($this->dbName)) as $row) {
if (in_array(current($row), $this->dumpSettings['include-tables'], true)) {
array_push($this->views, current($row));
$elem = array_search(
current($row),
$this->dumpSettings['include-tables']
);
unset($this->dumpSettings['include-tables'][$elem]);
}
}
}
// Listing all triggers from database
if (false === $this->dumpSettings['skip-triggers']) {
foreach ($this->dbHandler->query($this->typeAdapter->show_triggers($this->dbName)) as $row) {
array_push($this->triggers, $row['Trigger']);
}
}
}
/**
* Exports all the tables selected from database
*
* @return null
*/
private function exportTables()
{
// Exporting tables one by one
foreach ($this->tables as $table) {
if (in_array($table, $this->dumpSettings['exclude-tables'], true)) {
continue;
}
$this->getTableStructure($table);
if (false === $this->dumpSettings['no-data']) {
$this->listValues($table);
}
}
}
/**
* Exports all the views found in database
*
* @return null
*/
private function exportViews()
{
if (false === $this->dumpSettings['no-create-info']) {
// Exporting views one by one
foreach ($this->views as $view) {
if (in_array($view, $this->dumpSettings['exclude-tables'], true)) {
continue;
}
$this->tableColumnTypes[$view] = $this->getTableColumnTypes($view);
$this->getViewStructureTable($view);
}
foreach ($this->views as $view) {
if (in_array($view, $this->dumpSettings['exclude-tables'], true)) {
continue;
}
$this->getViewStructureView($view);
}
}
}
/**
* Exports all the triggers found in database
*
* @return null
*/
private function exportTriggers()
{
// Exporting triggers one by one
foreach ($this->triggers as $trigger) {
$this->getTriggerStructure($trigger);
}
}
/**
* Table structure extractor
*
* @todo move specific mysql code to typeAdapter
* @param string $tableName Name of table to export
* @return null
*/
private function getTableStructure($tableName)
{
if (!$this->dumpSettings['no-create-info']) {
$ret = '';
if (!$this->dumpSettings['skip-comments']) {
$ret = "--" . PHP_EOL .
"-- Table structure for table `$tableName`" . PHP_EOL .
"--" . PHP_EOL . PHP_EOL;
}
$stmt = $this->typeAdapter->show_create_table($tableName);
foreach ($this->dbHandler->query($stmt) as $r) {
$this->compressManager->write($ret);
if ($this->dumpSettings['add-drop-table']) {
$this->compressManager->write(
$this->typeAdapter->drop_table($tableName)
);
}
$this->compressManager->write(
$this->typeAdapter->create_table($r, $this->dumpSettings)
);
break;
}
}
$this->tableColumnTypes[$tableName] = $this->getTableColumnTypes($tableName);
return;
}
/**
* Store column types to create data dumps and for Stand-In tables
*
* @param string $tableName Name of table to export
* @return array type column types detailed
*/
private function getTableColumnTypes($tableName) {
$columnTypes = array();
$columns = $this->dbHandler->query(
$this->typeAdapter->show_columns($tableName)
);
$columns->setFetchMode(PDO::FETCH_ASSOC);
foreach($columns as $key => $col) {
$types = $this->typeAdapter->parseColumnType($col);
$columnTypes[$col['Field']] = array(
'is_numeric'=> $types['is_numeric'],
'is_blob' => $types['is_blob'],
'type' => $types['type'],
'type_sql' => $col['Type']
);
}
return $columnTypes;
}
/**
* View structure extractor, create table (avoids cyclic references)
*
* @todo move mysql specific code to typeAdapter
* @param string $viewName Name of view to export
* @return null
*/
private function getViewStructureTable($viewName)
{
$ret = '';
if (!$this->dumpSettings['skip-comments']) {
$ret = "--" . PHP_EOL .
"-- Stand-In structure for view `${viewName}`" . PHP_EOL .
"--" . PHP_EOL . PHP_EOL;
}
$this->compressManager->write($ret);
$stmt = $this->typeAdapter->show_create_view($viewName);
// create views as tables, to resolve dependencies
foreach ($this->dbHandler->query($stmt) as $r) {
if ($this->dumpSettings['add-drop-table']) {
$this->compressManager->write(
$this->typeAdapter->drop_view($viewName)
);
}
$this->compressManager->write(
$this->createStandInTable($viewName)
);
break;
}
}
/**
* Write a create table statement for the table Stand-In, show create
* table would return a create algorithm when used on a view
*
* @param string $viewName Name of view to export
* @return string create statement
*/
function createStandInTable($viewName) {
$ret = array();
foreach($this->tableColumnTypes[$viewName] as $k => $v) {
$ret[] = "`${k}` ${v['type_sql']}";
}
$ret = implode(PHP_EOL . ",", $ret);
$ret = "CREATE TABLE IF NOT EXISTS `$viewName` (" .
PHP_EOL . $ret . PHP_EOL . ");" . PHP_EOL;
return $ret;
}
/**
* View structure extractor, create view
*
* @todo move mysql specific code to typeAdapter
* @param string $viewName Name of view to export
* @return null
*/
private function getViewStructureView($viewName)
{
$ret = '';
if (!$this->dumpSettings['skip-comments']) {
$ret = "--" . PHP_EOL .
"-- View structure for view `${viewName}`" . PHP_EOL .
"--" . PHP_EOL . PHP_EOL;
}
$this->compressManager->write($ret);
$stmt = $this->typeAdapter->show_create_view($viewName);
// create views, to resolve dependencies
// replacing tables with views
foreach ($this->dbHandler->query($stmt) as $r) {
// because we must replace table with view, we should delete it
$this->compressManager->write(
$this->typeAdapter->drop_view($viewName)
);
$this->compressManager->write(
$this->typeAdapter->create_view($r)
);
break;
}
}
/**
* Trigger structure extractor
*
* @param string $triggerName Name of trigger to export
* @return null
*/
private function getTriggerStructure($triggerName)
{
$stmt = $this->typeAdapter->show_create_trigger($triggerName);
foreach ($this->dbHandler->query($stmt) as $r) {
if ($this->dumpSettings['add-drop-trigger']) {
$this->compressManager->write(
$this->typeAdapter->add_drop_trigger($triggerName)
);
}
$this->compressManager->write(
$this->typeAdapter->create_trigger($r)
);
return;
}
}
/**
* Escape values with quotes when needed
*
* @param string $tableName Name of table which contains rows
* @param array $row Associative array of column names and values to be quoted
*
* @return string
*/
private function escape($tableName, $row)
{
$ret = array();
$columnTypes = $this->tableColumnTypes[$tableName];
foreach ($row as $colName => $colValue) {
if (is_null($colValue)) {
$ret[] = "NULL";
} elseif ($this->dumpSettings['hex-blob'] && $columnTypes[$colName]['is_blob']) {
if ($columnTypes[$colName]['type'] == 'bit' || !empty($colValue)) {
$ret[] = "0x${colValue}";
} else {
$ret[] = "''";
}
} elseif ($columnTypes[$colName]['is_numeric']) {
$ret[] = $colValue;
} else {
$ret[] = $this->dbHandler->quote($colValue);
}
}
return $ret;
}
/**
* Table rows extractor
*
* @param string $tableName Name of table to export
*
* @return null
*/
private function listValues($tableName)
{
$this->prepareListValues($tableName);
$onlyOnce = true;
$lineSize = 0;
$colStmt = $this->getColumnStmt($tableName);
$stmt = "SELECT $colStmt FROM `$tableName`";
if ($this->dumpSettings['where']) {
$stmt .= " WHERE {$this->dumpSettings['where']}";
}
$resultSet = $this->dbHandler->query($stmt);
$resultSet->setFetchMode(PDO::FETCH_ASSOC);
foreach ($resultSet as $row) {
$vals = $this->escape($tableName, $row);
if ($onlyOnce || !$this->dumpSettings['extended-insert']) {
$lineSize += $this->compressManager->write(
"INSERT INTO `$tableName` VALUES (" . implode(",", $vals) . ")"
);
$onlyOnce = false;
} else {
$lineSize += $this->compressManager->write(",(" . implode(",", $vals) . ")");
}
if (($lineSize > self::MAXLINESIZE) ||
!$this->dumpSettings['extended-insert']) {
$onlyOnce = true;
$lineSize = $this->compressManager->write(";" . PHP_EOL);
}
}
$resultSet->closeCursor();
if (!$onlyOnce) {
$this->compressManager->write(";" . PHP_EOL);
}
$this->endListValues($tableName);
}
/**
* Table rows extractor, append information prior to dump
*
* @param string $tableName Name of table to export
*
* @return null
*/
function prepareListValues($tableName)
{
if (!$this->dumpSettings['skip-comments']) {
$this->compressManager->write(
"--" . PHP_EOL .
"-- Dumping data for table `$tableName`" . PHP_EOL .
"--" . PHP_EOL . PHP_EOL
);
}
if ($this->dumpSettings['single-transaction']) {
$this->dbHandler->exec($this->typeAdapter->setup_transaction());
$this->dbHandler->exec($this->typeAdapter->start_transaction());
}
if ($this->dumpSettings['lock-tables']) {
$this->typeAdapter->lock_table($tableName);
}
if ($this->dumpSettings['add-locks']) {
$this->compressManager->write(
$this->typeAdapter->start_add_lock_table($tableName)
);
}
if ($this->dumpSettings['disable-keys']) {
$this->compressManager->write(
$this->typeAdapter->start_add_disable_keys($tableName)
);
}
// Disable autocommit for faster reload
if ($this->dumpSettings['no-autocommit']) {
$this->compressManager->write(
$this->typeAdapter->start_disable_autocommit()
);
}
return;
}
/**
* Table rows extractor, close locks and commits after dump
*
* @param string $tableName Name of table to export
*
* @return null
*/
function endListValues($tableName)
{
if ($this->dumpSettings['disable-keys']) {
$this->compressManager->write(
$this->typeAdapter->end_add_disable_keys($tableName)
);
}
if ($this->dumpSettings['add-locks']) {
$this->compressManager->write(
$this->typeAdapter->end_add_lock_table($tableName)
);
}
if ($this->dumpSettings['single-transaction']) {
$this->dbHandler->exec($this->typeAdapter->commit_transaction());
}
if ($this->dumpSettings['lock-tables']) {
$this->typeAdapter->unlock_table($tableName);
}
// Commit to enable autocommit
if ($this->dumpSettings['no-autocommit']) {
$this->compressManager->write(
$this->typeAdapter->end_disable_autocommit()
);
}
$this->compressManager->write(PHP_EOL);
return;
}
/**
* Build SQL List of all columns on current table
*
* @param string $tableName Name of table to get columns
*
* @return string SQL sentence with columns
*/
function getColumnStmt($tableName)
{
$colStmt = array();
foreach($this->tableColumnTypes[$tableName] as $colName => $colType) {
if ($colType['type'] == 'bit' && $this->dumpSettings['hex-blob']) {
$colStmt[] = "LPAD(HEX(`${colName}`),2,'0') AS `${colName}`";
} else if ($colType['is_blob'] && $this->dumpSettings['hex-blob']) {
$colStmt[] = "HEX(`${colName}`) AS `${colName}`";
} else {
$colStmt[] = "`${colName}`";
}
}
$colStmt = implode($colStmt, ",");
return $colStmt;
}
}
/**
* Enum with all available compression methods
*
*/
abstract class CompressMethod
{
public static $enums = array(
"None",
"Gzip",
"Bzip2"
);
/**
* @param string $c
* @return boolean
*/
public static function isValid($c)
{
return in_array($c, self::$enums);
}
}
abstract class CompressManagerFactory
{
/**
* @param string $c
* @return CompressBzip2|CompressGzip|CompressNone
*/
public static function create($c)
{
$c = ucfirst(strtolower($c));
if (! CompressMethod::isValid($c)) {
throw new Exception("Compression method ($c) is not defined yet");
}
$method = __NAMESPACE__ . "\\" . "Compress" . $c;
return new $method;
}
}
class CompressBzip2 extends CompressManagerFactory
{
private $fileHandler = null;
public function __construct()
{
if (! function_exists("bzopen")) {
throw new Exception("Compression is enabled, but bzip2 lib is not installed or configured properly");
}
}
/**
* @param string $filename
*/
public function open($filename)
{
$this->fileHandler = bzopen($filename, "w");
if (false === $this->fileHandler) {
throw new Exception("Output file is not writable");
}
return true;
}
public function write($str)
{
if (false === ($bytesWritten = bzwrite($this->fileHandler, $str))) {
throw new Exception("Writting to file failed! Probably, there is no more free space left?");
}
return $bytesWritten;
}
public function close()
{
return bzclose($this->fileHandler);
}
}
class CompressGzip extends CompressManagerFactory
{
private $fileHandler = null;
public function __construct()
{
if (! function_exists("gzopen")) {
throw new Exception("Compression is enabled, but gzip lib is not installed or configured properly");
}
}
/**
* @param string $filename
*/
public function open($filename)
{
$this->fileHandler = gzopen($filename, "wb");
if (false === $this->fileHandler) {
throw new Exception("Output file is not writable");
}
return true;
}
public function write($str)
{
if (false === ($bytesWritten = gzwrite($this->fileHandler, $str))) {
throw new Exception("Writting to file failed! Probably, there is no more free space left?");
}
return $bytesWritten;
}
public function close()
{
return gzclose($this->fileHandler);
}
}
class CompressNone extends CompressManagerFactory
{
private $fileHandler = null;
/**
* @param string $filename
*/
public function open($filename)
{
$this->fileHandler = fopen($filename, "wb");
if (false === $this->fileHandler) {
throw new Exception("Output file is not writable");
}
return true;
}
public function write($str)
{
if (false === ($bytesWritten = fwrite($this->fileHandler, $str))) {
throw new Exception("Writting to file failed! Probably, there is no more free space left?");
}
return $bytesWritten;
}
public function close()
{
return fclose($this->fileHandler);
}
}
/**
* Enum with all available TypeAdapter implementations
*
*/
abstract class TypeAdapter
{
public static $enums = array(
"Sqlite",
"Mysql"
);
/**
* @param string $c
* @return boolean
*/
public static function isValid($c)
{
return in_array($c, self::$enums);
}
}
/**
* TypeAdapter Factory
*
*/
abstract class TypeAdapterFactory
{
/**
* @param string $c Type of database factory to create (Mysql, Sqlite,...)
* @param PDO $dbHandler
*/
public static function create($c, $dbHandler = null)
{
$c = ucfirst(strtolower($c));
if (! TypeAdapter::isValid($c)) {
throw new Exception("Database type support for ($c) not yet available");
}
$method = __NAMESPACE__ . "\\" . "TypeAdapter" . $c;
return new $method($dbHandler);
}
/**
* function databases Add sql to create and use database
* @todo make it do something with sqlite
*/
public function databases()
{
return "";
}
public function show_create_table($tableName)
{
return "SELECT tbl_name as 'Table', sql as 'Create Table' " .
"FROM sqlite_master " .
"WHERE type='table' AND tbl_name='$tableName'";
}
/**
* function create_table Get table creation code from database
* @todo make it do something with sqlite
*/
public function create_table($row, $dumpSettings)
{
return "";
}
public function show_create_view($viewName)
{
return "SELECT tbl_name as 'View', sql as 'Create View' " .
"FROM sqlite_master " .
"WHERE type='view' AND tbl_name='$viewName'";
}
/**
* function create_view Get view creation code from database
* @todo make it do something with sqlite
*/
public function create_view($row)
{
return "";
}
/**
* function show_create_trigger Get trigger creation code from database
* @todo make it do something with sqlite
*/
public function show_create_trigger($triggerName)
{
return "";
}
/**
* function create_trigger Modify trigger code, add delimiters, etc
* @todo make it do something with sqlite
*/
public function create_trigger($triggerName)
{
return "";
}
public function show_tables()
{
return "SELECT tbl_name FROM sqlite_master WHERE type='table'";
}
public function show_views()
{
return "SELECT tbl_name FROM sqlite_master WHERE type='view'";
}
public function show_triggers()
{
return "SELECT name FROM sqlite_master WHERE type='trigger'";
}
public function show_columns()
{
if (func_num_args() != 1) {
return "";
}
$args = func_get_args();
return "pragma table_info(${args[0]})";
}
public function setup_transaction()
{
return "";
}
public function start_transaction()
{
return "BEGIN EXCLUSIVE";
}
public function commit_transaction()
{
return "COMMIT";
}
public function lock_table()
{
return "";
}
public function unlock_table()
{
return "";
}
public function start_add_lock_table()
{
return PHP_EOL;
}
public function end_add_lock_table()
{
return PHP_EOL;
}
public function start_add_disable_keys()
{
return PHP_EOL;
}
public function end_add_disable_keys()
{
return PHP_EOL;
}
public function start_disable_foreign_keys_check()
{
return PHP_EOL;
}
public function end_disable_foreign_keys_check()
{
return PHP_EOL;
}
public function add_drop_database()
{
return PHP_EOL;
}
public function add_drop_trigger()
{
return PHP_EOL;
}
public function drop_table()
{
return PHP_EOL;
}
public function drop_view()
{
return PHP_EOL;
}
/**
* Decode column metadata and fill info structure.
* type, is_numeric and is_blob will always be available.
*
* @param array $colType Array returned from "SHOW COLUMNS FROM tableName"
* @return array
*/
public function parseColumnType($colType)
{
return array();
}
public function backup_parameters()
{
return PHP_EOL;
}
public function restore_parameters()
{
return PHP_EOL;
}
}
class TypeAdapterPgsql extends TypeAdapterFactory
{
}
class TypeAdapterDblib extends TypeAdapterFactory
{
}
class TypeAdapterSqlite extends TypeAdapterFactory
{
}
class TypeAdapterMysql extends TypeAdapterFactory
{
private $dbHandler = null;
// Numerical Mysql types
public $mysqlTypes = array(
'numerical' => array(
'bit',
'tinyint',
'smallint',
'mediumint',
'int',
'integer',
'bigint',
'real',
'double',
'float',
'decimal',
'numeric'
),
'blob' => array(
'tinyblob',
'blob',
'mediumblob',
'longblob',
'binary',
'varbinary',
'bit'
)
);
public function __construct ($dbHandler)
{
$this->dbHandler = $dbHandler;
}
public function databases()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
$databaseName = $args[0];
$resultSet = $this->dbHandler->query("SHOW VARIABLES LIKE 'character_set_database';");
$characterSet = $resultSet->fetchColumn(1);
$resultSet->closeCursor();
$resultSet = $this->dbHandler->query("SHOW VARIABLES LIKE 'collation_database';");
$collationDb = $resultSet->fetchColumn(1);
$resultSet->closeCursor();
$ret = "";
$ret .= "CREATE DATABASE /*!32312 IF NOT EXISTS*/ `${databaseName}`".
" /*!40100 DEFAULT CHARACTER SET ${characterSet} " .
" COLLATE ${collationDb} */;" . PHP_EOL . PHP_EOL .
"USE `${databaseName}`;" . PHP_EOL . PHP_EOL;
return $ret;
}
public function show_create_table($tableName)
{
return "SHOW CREATE TABLE `$tableName`";
}
public function show_create_view($viewName)
{
return "SHOW CREATE VIEW `$viewName`";
}
public function show_create_trigger($triggerName)
{
return "SHOW CREATE TRIGGER `$triggerName`";
}
public function create_table($row, $dumpSettings)
{
if (!isset($row['Create Table'])) {
throw new Exception("Error getting table code, unknown output");
}
$ret = "/*!40101 SET @saved_cs_client = @@character_set_client */;" . PHP_EOL .
"/*!40101 SET character_set_client = " . $dumpSettings['default-character-set'] . " */;" . PHP_EOL .
$row['Create Table'] . ";" . PHP_EOL .
"/*!40101 SET character_set_client = @saved_cs_client */;" . PHP_EOL .
PHP_EOL;
return $ret;
}
public function create_view($row)
{
$ret = "";
if (!isset($row['Create View'])) {
throw new Exception("Error getting view structure, unknown output");
}
$triggerStmt = $row['Create View'];
$triggerStmtReplaced1 = str_replace(
"CREATE ALGORITHM",
"/*!50001 CREATE ALGORITHM",
$triggerStmt
);
$triggerStmtReplaced2 = str_replace(
" DEFINER=",
" */" . PHP_EOL . "/*!50013 DEFINER=",
$triggerStmtReplaced1
);
$triggerStmtReplaced3 = str_replace(
" VIEW ",
" */" . PHP_EOL . "/*!50001 VIEW ",
$triggerStmtReplaced2
);
if (false === $triggerStmtReplaced1 ||
false === $triggerStmtReplaced2 ||
false === $triggerStmtReplaced3) {
$triggerStmtReplaced = $triggerStmt;
} else {
$triggerStmtReplaced = $triggerStmtReplaced3 . " */;";
}
$ret .= $triggerStmtReplaced . PHP_EOL . PHP_EOL;
return $ret;
}
public function create_trigger($row)
{
$ret = "";
if (!isset($row['SQL Original Statement'])) {
throw new Exception("Error getting trigger code, unknown output");
}
$triggerStmt = $row['SQL Original Statement'];
$triggerStmtReplaced = str_replace(
"CREATE DEFINER",
"/*!50003 CREATE*/ /*!50017 DEFINER",
$triggerStmt
);
$triggerStmtReplaced = str_replace(
" TRIGGER",
"*/ /*!50003 TRIGGER",
$triggerStmtReplaced
);
if ( false === $triggerStmtReplaced ) {
$triggerStmtReplaced = $triggerStmt;
}
$ret .= "DELIMITER ;;" . PHP_EOL .
$triggerStmtReplaced . "*/;;" . PHP_EOL .
"DELIMITER ;" . PHP_EOL . PHP_EOL;
return $ret;
}
public function show_tables()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "SELECT TABLE_NAME AS tbl_name " .
"FROM INFORMATION_SCHEMA.TABLES " .
"WHERE TABLE_TYPE='BASE TABLE' AND TABLE_SCHEMA='${args[0]}'";
}
public function show_views()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "SELECT TABLE_NAME AS tbl_name " .
"FROM INFORMATION_SCHEMA.TABLES " .
"WHERE TABLE_TYPE='VIEW' AND TABLE_SCHEMA='${args[0]}'";
}
public function show_triggers()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "SHOW TRIGGERS FROM `${args[0]}`;";
}
public function show_columns()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "SHOW COLUMNS FROM `${args[0]}`;";
}
public function setup_transaction()
{
return "SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ";
}
public function start_transaction()
{
return "START TRANSACTION";
}
public function commit_transaction()
{
return "COMMIT";
}
public function lock_table()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return $this->dbHandler->exec("LOCK TABLES `${args[0]}` READ LOCAL");
}
public function unlock_table()
{
return $this->dbHandler->exec("UNLOCK TABLES");
}
public function start_add_lock_table()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "LOCK TABLES `${args[0]}` WRITE;" . PHP_EOL;
}
public function end_add_lock_table()
{
return "UNLOCK TABLES;" . PHP_EOL;
}
public function start_add_disable_keys()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "/*!40000 ALTER TABLE `${args[0]}` DISABLE KEYS */;" .
PHP_EOL;
}
public function end_add_disable_keys()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "/*!40000 ALTER TABLE `${args[0]}` ENABLE KEYS */;" .
PHP_EOL;
}
public function start_disable_autocommit()
{
return "SET autocommit=0;" . PHP_EOL;
}
public function end_disable_autocommit()
{
return "COMMIT;" . PHP_EOL;
}
public function add_drop_database()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "/*!40000 DROP DATABASE IF EXISTS `${args[0]}`*/;" .
PHP_EOL . PHP_EOL;
}
public function add_drop_trigger()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "DROP TRIGGER IF EXISTS `${args[0]}`;" . PHP_EOL;
}
public function drop_table()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "DROP TABLE IF EXISTS `${args[0]}`;" . PHP_EOL;
}
public function drop_view()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "DROP TABLE IF EXISTS `${args[0]}`;" . PHP_EOL .
"/*!50001 DROP VIEW IF EXISTS `${args[0]}`*/;" . PHP_EOL;
}
public function getDatabaseHeader()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
return "--" . PHP_EOL .
"-- Current Database: `${args[0]}`" . PHP_EOL .
"--" . PHP_EOL . PHP_EOL;
}
/**
* Decode column metadata and fill info structure.
* type, is_numeric and is_blob will always be available.
*
* @param array $colType Array returned from "SHOW COLUMNS FROM tableName"
* @return array
*/
public function parseColumnType($colType)
{
$colInfo = array();
$colParts = explode(" ", $colType['Type']);
if($fparen = strpos($colParts[0], "("))
{
$colInfo['type'] = substr($colParts[0], 0, $fparen);
$colInfo['length'] = str_replace(")", "", substr($colParts[0], $fparen+1));
$colInfo['attributes'] = isset($colParts[1]) ? $colParts[1] : NULL;
}
else
{
$colInfo['type'] = $colParts[0];
}
$colInfo['is_numeric'] = in_array($colInfo['type'], $this->mysqlTypes['numerical']);
$colInfo['is_blob'] = in_array($colInfo['type'], $this->mysqlTypes['blob']);
return $colInfo;
}
public function backup_parameters()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
$dumpSettings = $args[0];
$ret = "/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;" . PHP_EOL .
"/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;" . PHP_EOL .
"/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;" . PHP_EOL .
"/*!40101 SET NAMES " . $dumpSettings['default-character-set'] . " */;" . PHP_EOL;
if (false === $dumpSettings['skip-tz-utc']) {
$ret .= "/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;" . PHP_EOL .
"/*!40103 SET TIME_ZONE='+00:00' */;" . PHP_EOL;
}
$ret .= "/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;" . PHP_EOL .
"/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;" . PHP_EOL .
"/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;" . PHP_EOL .
"/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;" . PHP_EOL .PHP_EOL;
return $ret;
}
public function restore_parameters()
{
if (func_num_args() != 1) {
throw new Exception("Unexpected parameter passed to " . __METHOD__);
}
$args = func_get_args();
$dumpSettings = $args[0];
$ret = "";
if (false === $dumpSettings['skip-tz-utc']) {
$ret .= "/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;" . PHP_EOL;
}
$ret .= "/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;" . PHP_EOL .
"/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;" . PHP_EOL .
"/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;" . PHP_EOL .
"/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;" . PHP_EOL .
"/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;" . PHP_EOL .
"/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;" . PHP_EOL .
"/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;" . PHP_EOL . PHP_EOL;
return $ret;
}
}
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