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<?php
namespace Opencart\Admin\Controller\Tool;
/**
* Class Backup
*
* @package Opencart\Admin\Controller\Tool
*/
class Backup extends \Opencart\System\Engine\Controller {
/**
* Index
*
* @return void
*/
public function index(): void {
$this->load->language('tool/backup');
$this->document->setTitle($this->language->get('heading_title'));
// Use the ini_get('upload_max_filesize') for the max file size
$data['error_upload_size'] = sprintf($this->language->get('error_upload_size'), ini_get('upload_max_filesize'));
$data['config_file_max_size'] = ((int)preg_filter('/[^0-9]/', '', ini_get('upload_max_filesize')) * 1024 * 1024);
$data['breadcrumbs'] = [];
$data['breadcrumbs'][] = [
'text' => $this->language->get('text_home'),
'href' => $this->url->link('common/dashboard', 'user_token=' . $this->session->data['user_token'])
];
$data['breadcrumbs'][] = [
'text' => $this->language->get('heading_title'),
'href' => $this->url->link('tool/backup', 'user_token=' . $this->session->data['user_token'])
];
$data['upload'] = $this->url->link('tool/backup.upload', 'user_token=' . $this->session->data['user_token']);
$this->load->model('tool/backup');
$ignore = [
DB_PREFIX . 'user',
DB_PREFIX . 'user_group'
];
$data['tables'] = [];
$results = $this->model_tool_backup->getTables();
foreach ($results as $result) {
if (!in_array($result, $ignore)) {
$data['tables'][] = $result;
}
}
$data['history'] = $this->getHistory();
$data['user_token'] = $this->session->data['user_token'];
$data['header'] = $this->load->controller('common/header');
$data['column_left'] = $this->load->controller('common/column_left');
$data['footer'] = $this->load->controller('common/footer');
$this->response->setOutput($this->load->view('tool/backup', $data));
}
/**
* History
*
* @return void
*/
public function history(): void {
$this->load->language('tool/backup');
$this->response->setOutput($this->getHistory());
}
/**
* Get History
*
* @return string
*/
public function getHistory(): string {
$this->load->language('tool/backup');
$data['histories'] = [];
$files = glob(DIR_STORAGE . 'backup/*.sql');
foreach ($files as $file) {
$size = filesize($file);
$i = 0;
$suffix = [
'B',
'KB',
'MB',
'GB',
'TB',
'PB',
'EB',
'ZB',
'YB'
];
while (($size / 1024) > 1) {
$size /= 1024;
$i++;
}
$data['histories'][] = [
'filename' => basename($file),
'size' => round(substr($size, 0, strpos($size, '.') + 4), 2) . $suffix[$i],
'date_added' => date($this->language->get('datetime_format'), filemtime($file)),
'download' => $this->url->link('tool/backup.download', 'user_token=' . $this->session->data['user_token'] . '&filename=' . urlencode(basename($file))),
];
}
return $this->load->view('tool/backup_history', $data);
}
/**
* Backup
*
* @return void
*/
public function backup(): void {
$this->load->language('tool/backup');
$json = [];
if (isset($this->request->get['filename'])) {
$filename = basename(html_entity_decode($this->request->get['filename'], ENT_QUOTES, 'UTF-8'));
} else {
$filename = date('Y-m-d H.i.s') . '.sql';
}
if (isset($this->request->get['table'])) {
$table = $this->request->get['table'];
} else {
$table = '';
}
if (isset($this->request->post['backup'])) {
$backup = $this->request->post['backup'];
} else {
$backup = [];
}
if (isset($this->request->get['page'])) {
$page = (int)$this->request->get['page'];
} else {
$page = 1;
}
if (!$this->user->hasPermission('modify', 'tool/backup')) {
$json['error'] = $this->language->get('error_permission');
}
$this->load->model('tool/backup');
$allowed = $this->model_tool_backup->getTables();
if (!in_array($table, $allowed)) {
$json['error'] = sprintf($this->language->get('error_table'), $table);
}
if (!$json) {
$output = '';
if ($page == 1) {
$output .= 'TRUNCATE TABLE `' . $this->db->escape($table) . '`;' . "\n\n";
}
$results = $this->model_tool_backup->getRecords($table, ($page - 1) * 200, 200);
foreach ($results as $result) {
$fields = '';
foreach (array_keys($result) as $value) {
$fields .= '`' . $value . '`, ';
}
$values = '';
foreach (array_values($result) as $value) {
if ($value !== null) {
$value = str_replace(["\x00", "\x0a", "\x0d", "\x1a"], ['\0', '\n', '\r', '\Z'], $value);
$value = str_replace(["\n", "\r", "\t"], ['\n', '\r', '\t'], $value);
$value = str_replace('\\', '\\\\', $value);
$value = str_replace('\'', '\\\'', $value);
$value = str_replace('\\\n', '\n', $value);
$value = str_replace('\\\r', '\r', $value);
$value = str_replace('\\\t', '\t', $value);
$values .= '\'' . $value . '\', ';
} else {
$values .= 'NULL, ';
}
}
$output .= 'INSERT INTO `' . $table . '` (' . preg_replace('/, $/', '', $fields) . ') VALUES (' . preg_replace('/, $/', '', $values) . ');' . "\n";
}
$position = array_search($table, $backup);
$record_total = $this->model_tool_backup->getTotalRecords($table);
if (($page * 200) >= $record_total) {
$output .= "\n";
if (isset($backup[$position + 1])) {
$table = $backup[$position + 1];
} else {
$table = '';
}
}
if ($position !== false) {
$json['progress'] = round(($position / count($backup)) * 100);
} else {
$json['progress'] = 0;
}
$handle = fopen(DIR_STORAGE . 'backup/' . $filename, 'a');
fwrite($handle, $output);
fclose($handle);
if (!$table) {
$json['success'] = $this->language->get('text_success');
} elseif (($page * 200) >= $record_total) {
$json['text'] = sprintf($this->language->get('text_backup'), $table, ($page - 1) * 200, $record_total);
$json['next'] = $this->url->link('tool/backup.backup', 'user_token=' . $this->session->data['user_token'] . '&filename=' . urlencode($filename) . '&table=' . $table . '&page=1', true);
} else {
$json['text'] = sprintf($this->language->get('text_backup'), $table, ($page - 1) * 200, $page * 200);
$json['next'] = $this->url->link('tool/backup.backup', 'user_token=' . $this->session->data['user_token'] . '&filename=' . urlencode($filename) . '&table=' . $table . '&page=' . ($page + 1), true);
}
}
$this->response->addHeader('Content-Type: application/json');
$this->response->setOutput(json_encode($json));
}
/**
* Restore
*
* @return void
*/
public function restore(): void {
$this->load->language('tool/backup');
$json = [];
if (isset($this->request->get['filename'])) {
$filename = basename(html_entity_decode($this->request->get['filename'], ENT_QUOTES, 'UTF-8'));
} else {
$filename = '';
}
if (isset($this->request->get['position'])) {
$position = $this->request->get['position'];
} else {
$position = 0;
}
if (!$this->user->hasPermission('modify', 'tool/backup')) {
$json['error'] = $this->language->get('error_permission');
}
$file = DIR_STORAGE . 'backup/' . $filename;
if (!is_file($file)) {
$json['error'] = $this->language->get('error_file');
}
if (!$json) {
// We set $i so we can batch execute the queries rather than do them all at once.
$i = 0;
$handle = fopen($file, 'r');
fseek($handle, $position, SEEK_SET);
while (!feof($handle) && ($i < 100)) {
$position = ftell($handle);
$line = fgets($handle, 1000000);
if ($i > 0 && (substr($line, 0, strlen('TRUNCATE TABLE `' . DB_PREFIX . 'user`')) == 'TRUNCATE TABLE `' . DB_PREFIX . 'user`' || substr($line, 0, strlen('TRUNCATE TABLE `' . DB_PREFIX . 'user_group`')) == 'TRUNCATE TABLE `' . DB_PREFIX . 'user_group`')) {
fseek($handle, $position, SEEK_SET);
break;
}
if ((substr($line, 0, 14) == 'TRUNCATE TABLE' || substr($line, 0, 11) == 'INSERT INTO') && substr($line, -2) == ";\n") {
$this->db->query(substr($line, 0, strlen($line) - 2));
}
$i++;
}
$position = ftell($handle);
$size = filesize($file);
if ($position) {
$json['progress'] = round(($position / $size) * 100);
} else {
$json['progress'] = 0;
}
if ($position && !feof($handle)) {
$json['text'] = sprintf($this->language->get('text_restore'), $position, $size);
$json['next'] = $this->url->link('tool/backup.restore', 'user_token=' . $this->session->data['user_token'] . '&filename=' . urlencode($filename) . '&position=' . $position, true);
} else {
$json['success'] = $this->language->get('text_success');
$this->cache->delete('*');
}
fclose($handle);
}
$this->response->addHeader('Content-Type: application/json');
$this->response->setOutput(json_encode($json));
}
/**
* Upload
*
* @return void
*/
public function upload(): void {
$this->load->language('tool/backup');
$json = [];
// Check user has permission
if (!$this->user->hasPermission('modify', 'tool/backup')) {
$json['error'] = $this->language->get('error_permission');
}
if (empty($this->request->files['upload']['name']) || !is_file($this->request->files['upload']['tmp_name'])) {
$json['error'] = $this->language->get('error_upload');
}
if (!$json) {
// Sanitize the filename
$filename = basename(html_entity_decode($this->request->files['upload']['name'], ENT_QUOTES, 'UTF-8'));
if (!oc_validate_length($filename, 3, 128)) {
$json['error'] = $this->language->get('error_filename');
}
// Allowed file extension types
if (strtolower(substr(strrchr($filename, '.'), 1)) != 'sql') {
$json['error'] = $this->language->get('error_file_type');
}
}
if (!$json) {
move_uploaded_file($this->request->files['upload']['tmp_name'], DIR_STORAGE . 'backup/' . $filename);
$json['success'] = $this->language->get('text_success');
}
$this->response->addHeader('Content-Type: application/json');
$this->response->setOutput(json_encode($json));
}
/**
* Download
*
* @return void
*/
public function download(): void {
$this->load->language('tool/backup');
$json = [];
if (isset($this->request->get['filename'])) {
$filename = basename(html_entity_decode($this->request->get['filename'], ENT_QUOTES, 'UTF-8'));
} else {
$filename = '';
}
// Check user has permission
if (!$this->user->hasPermission('modify', 'tool/backup')) {
$this->response->redirect($this->url->link('error/permission', 'user_token=' . $this->session->data['user_token'], true));
}
$file = DIR_STORAGE . 'backup/' . $filename;
if (!is_file($file)) {
$this->response->redirect($this->url->link('error/not_found', 'user_token=' . $this->session->data['user_token'], true));
}
if (!headers_sent()) {
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="' . $filename . '"');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($file));
if (ob_get_level()) {
ob_end_clean();
}
readfile($file);
exit();
} else {
exit($this->language->get('error_headers_sent'));
}
}
/**
* Delete
*
* @return void
*/
public function delete(): void {
$this->load->language('tool/backup');
$json = [];
if (isset($this->request->get['filename'])) {
$filename = basename(html_entity_decode($this->request->get['filename'], ENT_QUOTES, 'UTF-8'));
} else {
$filename = '';
}
// Check user has permission
if (!$this->user->hasPermission('modify', 'tool/backup')) {
$json['error'] = $this->language->get('error_permission');
}
$file = DIR_STORAGE . 'backup/' . $filename;
if (!is_file($file)) {
$json['error'] = $this->language->get('error_file');
}
if (!$json) {
unlink($file);
$json['success'] = $this->language->get('text_success');
}
$this->response->addHeader('Content-Type: application/json');
$this->response->setOutput(json_encode($json));
}
}