%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* Abstract dump file: provides common interface for writing
* data to dump files.
* (c) 2create Studio, Bulgaria
* http://2create.bg/
*/
abstract class WPR_Shuttle_Dump_File {
/**
* File Handle
*/
protected $fh;
/**
* Location of the dump file on the disk
*/
protected $file_location;
abstract function write($string);
abstract function end();
static function create($filename) {
if (self::is_gzip($filename)) {
return new WPR_Shuttle_Dump_File_Gzip($filename);
}
return new WPR_Shuttle_Dump_File_Plaintext($filename);
}
function __construct($file) {
$this->file_location = $file;
$this->fh = $this->open();
if (!$this->fh) {
throw new WPR_Shuttle_Exception("Couldn't write SQL export file");
}
}
public static function is_gzip($filename) {
return preg_match('~gz$~i', $filename);
}
}
/**
* Plain text implementation. Uses standard file functions in PHP.
*/
class WPR_Shuttle_Dump_File_Plaintext extends WPR_Shuttle_Dump_File {
function open() {
return fopen($this->file_location, 'w');
}
function write($string) {
return fwrite($this->fh, $string);
}
function end() {
return fclose($this->fh);
}
}
/**
* Gzip implementation. Uses gz* functions.
*/
class WPR_Shuttle_Dump_File_Gzip extends WPR_Shuttle_Dump_File {
function open() {
return gzopen($this->file_location, 'wb9');
}
function write($string) {
return gzwrite($this->fh, $string);
}
function end() {
return gzclose($this->fh);
}
}
/**
* MySQL insert statement builder.
*/
class WPR_Shuttle_Insert_Statement {
private $rows = array();
private $length = 0;
private $table;
function __construct($table) {
$this->table = $table;
}
function reset() {
$this->rows = array();
$this->length = 0;
}
function add_row($row) {
$row = '(' . implode(",", $row) . ')';
$this->rows[] = $row;
$this->length += strlen($row);
}
function get_sql() {
if (empty($this->rows)) {
return false;
}
return 'INSERT INTO `' . $this->table . '` VALUES ' .
implode(",\n", $this->rows) . ';';
}
function get_length() {
return $this->length;
}
}
/**
* Main facade
*/
abstract class WPR_Shuttle_Dumper {
/**
* Maximum length of single insert statement
*/
const INSERT_THRESHOLD = 838860;
/**
* @var WPR_Shuttle_DBConn
*/
public $db;
/**
* @var WPR_Shuttle_Dump_File
*/
public $dump_file;
/**
* End of line style used in the dump
*/
public $eol = "\r\n";
/**
* Specificed tables to include
*/
public $include_tables;
/**
* Specified tables to exclude
*/
public $exclude_tables = array();
/**
* Factory method for dumper on current hosts's configuration.
*/
static function create($db_options) {
$db = WPR_Shuttle_DBConn::create($db_options);
$db->connect();
if (self::has_shell_access()
&& self::is_shell_command_available('mysqldump')
&& self::is_shell_command_available('gzip')
) {
$dumper = new WPR_Shuttle_Dumper_ShellCommand($db);
} else {
$dumper = new WPR_Shuttle_Dumper_Native($db);
}
if (isset($db_options['include_tables'])) {
$dumper->include_tables = $db_options['include_tables'];
}
if (isset($db_options['exclude_tables'])) {
$dumper->exclude_tables = $db_options['exclude_tables'];
}
return $dumper;
}
function __construct(WPR_Shuttle_DBConn $db) {
$this->db = $db;
}
public static function has_shell_access() {
if (!is_callable('shell_exec')) {
return false;
}
$disabled_functions = ini_get('disable_functions');
return stripos($disabled_functions, 'shell_exec') === false;
}
public static function is_shell_command_available($command) {
if (preg_match('~win~i', PHP_OS)) {
/*
On Windows, the `where` command checks for availabilty in PATH. According
to the manual(`where /?`), there is quiet mode:
....
/Q Returns only the exit code, without displaying the list
of matched files. (Quiet mode)
....
*/
$output = array();
exec('where /Q ' . $command, $output, $return_val);
if (intval($return_val) === 1) {
return false;
} else {
return true;
}
} else {
$last_line = exec('which ' . $command);
$last_line = trim($last_line);
// Whenever there is at least one line in the output,
// it should be the path to the executable
if (empty($last_line)) {
return false;
} else {
return true;
}
}
}
/**
* Create an export file from the tables with that prefix.
* @param string $export_file_location the file to put the dump to.
* Note that whenever the file has .gz extension the dump will be comporessed with gzip
* @param string $table_prefix Allow to export only tables with particular prefix
* @return void
*/
abstract public function dump($export_file_location, $table_prefix='');
protected function get_tables($table_prefix) {
if (!empty($this->include_tables)) {
return $this->include_tables;
}
// $tables will only include the tables and not views.
// TODO - Handle views also, edits to be made in function 'get_create_table_sql' line 336
$tables = $this->db->fetch_numeric('
SHOW FULL TABLES WHERE Table_Type = "BASE TABLE" AND Tables_in_'.$this->db->name.' LIKE "' . $this->db->escape_like($table_prefix) . '%"
');
$tables_list = array();
foreach ($tables as $table_row) {
$table_name = $table_row[0];
if (!in_array($table_name, $this->exclude_tables)) {
$tables_list[] = $table_name;
}
}
return $tables_list;
}
}
class WPR_Shuttle_Dumper_ShellCommand extends WPR_Shuttle_Dumper {
function dump($export_file_location, $table_prefix='') {
$command = 'mysqldump -h ' . escapeshellarg($this->db->host) .
' -u ' . escapeshellarg($this->db->username) .
' --password=' . escapeshellarg($this->db->password) .
' ' . escapeshellarg($this->db->name);
$include_all_tables = empty($table_prefix) &&
empty($this->include_tables) &&
empty($this->exclude_tables);
if (!$include_all_tables) {
$tables = $this->get_tables($table_prefix);
$command .= ' ' . implode(' ', array_map('escapeshellarg', $tables));
}
$error_file = tempnam(sys_get_temp_dir(), 'err');
$command .= ' 2> ' . escapeshellarg($error_file);
if (WPR_Shuttle_Dump_File::is_gzip($export_file_location)) {
$command .= ' | gzip';
}
$command .= ' > ' . escapeshellarg($export_file_location);
exec($command, $output, $return_val);
if ($return_val !== 0) {
$error_text = file_get_contents($error_file);
unlink($error_file);
throw new WPR_Shuttle_Exception('Couldn\'t export database: ' . $error_text);
}
unlink($error_file);
}
}
class WPR_Shuttle_Dumper_Native extends WPR_Shuttle_Dumper {
public function dump($export_file_location, $table_prefix='') {
global $wp_reset;
$eol = $this->eol;
$this->dump_file = WPR_Shuttle_Dump_File::create($export_file_location);
$this->dump_file->write("-- Generation time: " . date('r') . $eol);
$this->dump_file->write("-- Host: " . $this->db->host . $eol);
$this->dump_file->write("-- DB name: " . $this->db->name . $eol);
$this->dump_file->write("-- WP Reset ver: " . $wp_reset->get_plugin_version() . $eol);
$this->dump_file->write("-- Table Prefix: " . $table_prefix . $eol);
$this->dump_file->write("/*!40030 SET NAMES UTF8 */;$eol");
$this->dump_file->write("/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;$eol");
$this->dump_file->write("/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;$eol");
$this->dump_file->write("/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;$eol");
$this->dump_file->write("/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;$eol");
$this->dump_file->write("/*!40103 SET TIME_ZONE='+00:00' */;$eol");
$this->dump_file->write("/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;$eol");
$this->dump_file->write("/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;$eol");
$this->dump_file->write("/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;$eol");
$this->dump_file->write("/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;$eol$eol");
$tables = $this->get_tables($table_prefix);
foreach ($tables as $table) {
$this->dump_table($table);
}
$this->dump_file->write("$eol$eol");
$this->dump_file->write("/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;$eol");
$this->dump_file->write("/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;$eol");
$this->dump_file->write("/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;$eol");
$this->dump_file->write("/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;$eol");
$this->dump_file->write("/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;$eol");
$this->dump_file->write("/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;$eol");
$this->dump_file->write("/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;$eol$eol");
unset($this->dump_file);
}
protected function dump_table($table) {
$eol = $this->eol;
$this->dump_file->write("DROP TABLE IF EXISTS `$table`;$eol");
$create_table_sql = $this->get_create_table_sql($table);
$this->dump_file->write($create_table_sql . $eol . $eol);
$data = $this->db->query("SELECT * FROM `$table`");
$insert = new WPR_Shuttle_Insert_Statement($table);
while ($row = $this->db->fetch_row($data)) {
$row_values = array();
foreach ($row as $value) {
$row_values[] = $this->db->escape($value);
}
$insert->add_row( $row_values );
if ($insert->get_length() > self::INSERT_THRESHOLD) {
// The insert got too big: write the SQL and create
// new insert statement
$this->dump_file->write($insert->get_sql() . $eol);
$insert->reset();
}
}
$sql = $insert->get_sql();
if ($sql) {
$this->dump_file->write($insert->get_sql() . $eol);
}
$this->dump_file->write($eol . $eol);
}
public function get_create_table_sql($table) {
$create_table_sql = $this->db->fetch('SHOW CREATE TABLE `' . $table . '`');
return $create_table_sql[0]['Create Table'] . ';';
}
}
class WPR_Shuttle_DBConn {
public $host;
public $username;
public $password;
public $name;
protected $connection;
function __construct($options) {
$this->host = $options['host'];
if (empty($this->host)) {
$this->host = '127.0.0.1';
}
$this->username = $options['username'];
$this->password = $options['password'];
$this->name = $options['db_name'];
}
static function create($options) {
if (class_exists('mysqli')) {
$class_name = "WPR_Shuttle_DBConn_Mysqli";
} else {
$class_name = "WPR_Shuttle_DBConn_Mysql";
}
return new $class_name($options);
}
}
class WPR_Shuttle_DBConn_Mysql extends WPR_Shuttle_DBConn {
function connect() {
$this->connection = @mysql_connect($this->host, $this->username, $this->password);
if (!$this->connection) {
throw new WPR_Shuttle_Exception("Couldn't connect to the database: " . mysql_error());
}
$select_db_res = mysql_select_db($this->name, $this->connection);
if (!$select_db_res) {
throw new WPR_Shuttle_Exception("Couldn't select database: " . mysql_error($this->connection));
}
return true;
}
function query($q) {
if (!$this->connection) {
$this->connect();
}
$res = mysql_query($q);
if (!$res) {
throw new WPR_Shuttle_Exception("SQL error: " . mysql_error($this->connection));
}
return $res;
}
function fetch_numeric($query) {
return $this->fetch($query, MYSQL_NUM);
}
function fetch($query, $result_type=MYSQL_ASSOC) {
$result = $this->query($query, $this->connection);
$return = array();
while ( $row = mysql_fetch_array($result, $result_type) ) {
$return[] = $row;
}
return $return;
}
function escape($value) {
if (is_null($value)) {
return "NULL";
}
return "'" . mysql_real_escape_string($value) . "'";
}
function escape_like($search) {
return str_replace(array('_', '%'), array('\_', '\%'), $search);
}
function get_var($sql) {
$result = $this->query($sql);
$row = mysql_fetch_array($result);
return $row[0];
}
function fetch_row($data) {
return mysql_fetch_assoc($data);
}
}
class WPR_Shuttle_DBConn_Mysqli extends WPR_Shuttle_DBConn {
function connect() {
$this->connection = @new MySQLi($this->host, $this->username, $this->password, $this->name);
if ($this->connection->connect_error) {
throw new WPR_Shuttle_Exception("Couldn't connect to the database: " . $this->connection->connect_error);
}
return true;
}
function query($q) {
if (!$this->connection) {
$this->connect();
}
$res = $this->connection->query($q);
if (!$res) {
throw new WPR_Shuttle_Exception("SQL error: " . $this->connection->error);
}
return $res;
}
function fetch_numeric($query) {
return $this->fetch($query, MYSQLI_NUM);
}
function fetch($query, $result_type=MYSQLI_ASSOC) {
$result = $this->query($query, $this->connection);
$return = array();
while ( $row = $result->fetch_array($result_type) ) {
$return[] = $row;
}
return $return;
}
function escape($value) {
if (is_null($value)) {
return "NULL";
}
return "'" . $this->connection->real_escape_string($value) . "'";
}
function escape_like($search) {
return str_replace(array('_', '%'), array('\_', '\%'), $search);
}
function get_var($sql) {
$result = $this->query($sql);
$row = $result->fetch_array($result, MYSQLI_NUM);
return $row[0];
}
function fetch_row($data) {
return $data->fetch_array(MYSQLI_ASSOC);
}
}
class WPR_Shuttle_Exception extends Exception {};
Zerion Mini Shell 1.0