mirror of
https://github.com/snipe/snipe-it.git
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313 lines
14 KiB
PHP
313 lines
14 KiB
PHP
<?php
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namespace App\Console\Commands;
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use Illuminate\Console\Command;
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use ZipArchive;
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class RestoreFromBackup extends Command
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{
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/**
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* The name and signature of the console command.
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*
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* @var string
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*/
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protected $signature = 'snipeit:restore
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{--force : Skip the danger prompt; assuming you hit "y"}
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{filename : The full path of the .zip file to be migrated}
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{--no-progress : Don\'t show a progress bar}';
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/**
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* The console command description.
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*
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* @var string
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*/
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protected $description = 'Restore from a previously created Snipe-IT backup file';
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/**
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* Create a new command instance.
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*
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* @return void
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*/
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public function __construct()
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{
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parent::__construct();
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}
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public static $buffer_size = 1024 * 1024; // use a 1MB buffer, ought to work fine for most cases?
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/**
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* Execute the console command.
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*
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* @return mixed
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*/
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public function handle()
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{
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$dir = getcwd();
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if( $dir != base_path() ) { // usually only the case when running via webserver, not via command-line
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\Log::debug("Current working directory is: $dir, changing directory to: ".base_path());
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chdir(base_path()); // TODO - is this *safe* to change on a running script?!
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}
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//
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$filename = $this->argument('filename');
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if (! $filename) {
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return $this->error('Missing required filename');
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}
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if (! $this->option('force') && ! $this->confirm('Are you sure you wish to restore from the given backup file? This can lead to MASSIVE DATA LOSS!')) {
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return $this->error('Data loss not confirmed');
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}
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if (config('database.default') != 'mysql') {
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return $this->error('DB_CONNECTION must be MySQL in order to perform a restore. Detected: '.config('database.default'));
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}
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$za = new ZipArchive();
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$errcode = $za->open($filename/* , ZipArchive::RDONLY */); // that constant only exists in PHP 7.4 and higher
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if ($errcode !== true) {
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$errors = [
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ZipArchive::ER_EXISTS => 'File already exists.',
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ZipArchive::ER_INCONS => 'Zip archive inconsistent.',
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ZipArchive::ER_INVAL => 'Invalid argument.',
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ZipArchive::ER_MEMORY => 'Malloc failure.',
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ZipArchive::ER_NOENT => 'No such file ('.$filename.') in directory '.$dir.'.',
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ZipArchive::ER_NOZIP => 'Not a zip archive.',
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ZipArchive::ER_OPEN => "Can't open file.",
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ZipArchive::ER_READ => 'Read error.',
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ZipArchive::ER_SEEK => 'Seek error.',
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];
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return $this->error('Could not access file: '.$filename.' - '.array_key_exists($errcode, $errors) ? $errors[$errcode] : " Unknown reason: $errcode");
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}
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$private_dirs = [
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'storage/private_uploads/assets', // these are asset _files_, not the pictures.
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'storage/private_uploads/audits',
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'storage/private_uploads/imports',
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'storage/private_uploads/assetmodels',
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'storage/private_uploads/users',
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'storage/private_uploads/licenses',
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'storage/private_uploads/signatures',
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];
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$private_files = [
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'storage/oauth-private.key',
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'storage/oauth-public.key',
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];
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$public_dirs = [
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'public/uploads/companies',
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'public/uploads/components',
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'public/uploads/categories',
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'public/uploads/manufacturers',
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//'public/uploads/barcodes', // we don't want this, let the barcodes be regenerated
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'public/uploads/consumables',
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'public/uploads/departments',
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'public/uploads/avatars',
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'public/uploads/suppliers',
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'public/uploads/assets', // these are asset _pictures_, not asset files
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'public/uploads/locations',
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'public/uploads/accessories',
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'public/uploads/models',
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'public/uploads/categories',
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'public/uploads/avatars',
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'public/uploads/manufacturers',
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];
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$public_files = [
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'public/uploads/logo.*',
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'public/uploads/setting-email_logo*',
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'public/uploads/setting-label_logo*',
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'public/uploads/setting-logo*',
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'public/uploads/favicon.*',
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'public/uploads/favicon-uploaded.*',
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];
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$all_files = $private_dirs + $public_dirs;
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$sqlfiles = [];
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$sqlfile_indices = [];
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$interesting_files = [];
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$boring_files = [];
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for ($i = 0; $i < $za->numFiles; $i++) {
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$stat_results = $za->statIndex($i);
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// echo "index: $i\n";
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// print_r($stat_results);
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$raw_path = $stat_results['name'];
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if (strpos($raw_path, '\\') !== false) { //found a backslash, swap it to forward-slash
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$raw_path = strtr($raw_path, '\\', '/');
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//print "Translating file: ".$stat_results['name']." to: ".$raw_path."\n";
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}
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// skip macOS resource fork files (?!?!?!)
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if (strpos($raw_path, '__MACOSX') !== false && strpos($raw_path, '._') !== false) {
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//print "SKIPPING macOS Resource fork file: $raw_path\n";
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$boring_files[] = $raw_path;
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continue;
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}
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if (@pathinfo($raw_path)['extension'] == 'sql') {
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\Log::debug("Found a sql file!");
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$sqlfiles[] = $raw_path;
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$sqlfile_indices[] = $i;
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continue;
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}
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foreach (array_merge($private_dirs, $public_dirs) as $dir) {
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$last_pos = strrpos($raw_path, $dir.'/');
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if ($last_pos !== false) {
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//print("INTERESTING - last_pos is $last_pos when searching $raw_path for $dir - last_pos+strlen(\$dir) is: ".($last_pos+strlen($dir))." and strlen(\$rawpath) is: ".strlen($raw_path)."\n");
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//print("We would copy $raw_path to $dir.\n"); //FIXME append to a path?
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$interesting_files[$raw_path] = ['dest' =>$dir, 'index' => $i];
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continue 2;
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if ($last_pos + strlen($dir) + 1 == strlen($raw_path)) {
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// we don't care about that; we just want files with the appropriate prefix
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//print("FOUND THE EXACT DIRECTORY: $dir AT: $raw_path!!!\n");
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}
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}
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}
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$good_extensions = ['png', 'gif', 'jpg', 'svg', 'jpeg', 'doc', 'docx', 'pdf', 'txt',
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'zip', 'rar', 'xls', 'xlsx', 'lic', 'xml', 'rtf', 'webp', 'key', 'ico', ];
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foreach (array_merge($private_files, $public_files) as $file) {
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$has_wildcard = (strpos($file, '*') !== false);
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if ($has_wildcard) {
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$file = substr($file, 0, -1); //trim last character (which should be the wildcard)
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}
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$last_pos = strrpos($raw_path, $file); // no trailing slash!
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if ($last_pos !== false) {
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$extension = strtolower(pathinfo($raw_path, PATHINFO_EXTENSION));
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if (! in_array($extension, $good_extensions)) {
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$this->warn('Potentially unsafe file '.$raw_path.' is being skipped');
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$boring_files[] = $raw_path;
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continue 2;
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}
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//print("INTERESTING - last_pos is $last_pos when searching $raw_path for $file - last_pos+strlen(\$file) is: ".($last_pos+strlen($file))." and strlen(\$rawpath) is: ".strlen($raw_path)."\n");
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//no wildcards found in $file, process 'normally'
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if ($last_pos + strlen($file) == strlen($raw_path) || $has_wildcard) { //again, no trailing slash. or this is a wildcard and we just take it.
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// print("FOUND THE EXACT FILE: $file AT: $raw_path!!!\n"); //we *do* care about this, though.
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$interesting_files[$raw_path] = ['dest' => dirname($file), 'index' => $i];
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continue 2;
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}
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}
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}
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$boring_files[] = $raw_path; //if we've gotten to here and haven't continue'ed our way into the next iteration, we don't want this file
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} // end of pre-processing the ZIP file for-loop
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// print_r($interesting_files);exit(-1);
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if (count($sqlfiles) != 1) {
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return $this->error('There should be exactly *one* sql backup file found, found: '.(count($sqlfiles) == 0 ? 'None' : implode(', ', $sqlfiles)));
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}
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if (strpos($sqlfiles[0], 'db-dumps') === false) {
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//return $this->error("SQL backup file is missing 'db-dumps' component of full pathname: ".$sqlfiles[0]);
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//older Snipe-IT installs don't have the db-dumps subdirectory component
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}
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//how to invoke the restore?
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$pipes = [];
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$env_vars = getenv();
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$env_vars['MYSQL_PWD'] = config('database.connections.mysql.password');
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// TODO notes: we are stealing the dump_binary_path (which *probably* also has your copy of the mysql binary in it. But it might not, so we might need to extend this)
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// we unilaterally prepend a slash to the `mysql` command. This might mean your path could look like /blah/blah/blah//mysql - which should be fine. But maybe in some environments it isn't?
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$mysql_binary = config('database.connections.mysql.dump.dump_binary_path').'/mysql';
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if( ! file_exists($mysql_binary) ) {
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return $this->error("mysql tool at: '$mysql_binary' does not exist, cannot restore. Please edit DB_DUMP_PATH in your .env to point to a directory that contains the mysqldump and mysql binary");
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}
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$proc_results = proc_open("$mysql_binary -h ".escapeshellarg(config('database.connections.mysql.host')).' -u '.escapeshellarg(config('database.connections.mysql.username')).' '.escapeshellarg(config('database.connections.mysql.database')), // yanked -p since we pass via ENV
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[0 => ['pipe', 'r'], 1 => ['pipe', 'w'], 2 => ['pipe', 'w']],
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$pipes,
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null,
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$env_vars); // this is not super-duper awesome-secure, but definitely more secure than showing it on the CLI, or dropping temporary files with passwords in them.
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if ($proc_results === false) {
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return $this->error('Unable to invoke mysql via CLI');
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}
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// $this->info("Stdout says? ".fgets($pipes[1])); //FIXME: I think we might need to set non-blocking mode to use this properly?
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// $this->info("Stderr says? ".fgets($pipes[2])); //FIXME: ditto, same.
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// should we read stdout?
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// fwrite($pipes[0],config("database.connections.mysql.password")."\n"); //this doesn't work :(
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//$sql_contents = fopen($sqlfiles[0], "r"); //NOPE! This isn't a real file yet, silly-billy!
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$sql_stat = $za->statIndex($sqlfile_indices[0]);
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//$this->info("SQL Stat is: ".print_r($sql_stat,true));
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$sql_contents = $za->getStream($sql_stat['name']);
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if ($sql_contents === false) {
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$stdout = fgets($pipes[1]);
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$this->info($stdout);
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$stderr = fgets($pipes[2]);
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$this->info($stderr);
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return false;
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}
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$bytes_read = 0;
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while (($buffer = fgets($sql_contents, self::$buffer_size)) !== false) {
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$bytes_read += strlen($buffer);
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// \Log::debug("Buffer is: '$buffer'");
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$bytes_written = fwrite($pipes[0], $buffer);
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if ($bytes_written === false) {
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$stdout = fgets($pipes[1]);
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$this->info($stdout);
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$stderr = fgets($pipes[2]);
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$this->info($stderr);
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return false;
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}
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}
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if (!feof($sql_contents) || $bytes_read == 0) {
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return $this->error("Not at end of file for sql file, or zero bytes read. aborting!");
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}
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fclose($pipes[0]);
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fclose($sql_contents);
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$this->line(stream_get_contents($pipes[1]));
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fclose($pipes[1]);
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$this->error(stream_get_contents($pipes[2]));
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fclose($pipes[2]);
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//wait, have to do fclose() on all pipes first?
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$close_results = proc_close($proc_results);
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if ($close_results != 0) {
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return $this->error('There may have been a problem with the database import: Error number '.$close_results);
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}
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//and now copy the files over too (right?)
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//FIXME - we don't prune the filesystem space yet!!!!
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if ($this->option('no-progress')) {
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$bar = null;
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} else {
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$bar = $this->output->createProgressBar(count($interesting_files));
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}
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foreach ($interesting_files as $pretty_file_name => $file_details) {
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$ugly_file_name = $za->statIndex($file_details['index'])['name'];
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$fp = $za->getStream($ugly_file_name);
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//$this->info("Weird problem, here are file details? ".print_r($file_details,true));
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$migrated_file = fopen($file_details['dest'].'/'.basename($pretty_file_name), 'w');
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while (($buffer = fgets($fp, self::$buffer_size)) !== false) {
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fwrite($migrated_file, $buffer);
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}
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fclose($migrated_file);
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fclose($fp);
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//$this->info("Wrote $ugly_file_name to $pretty_file_name");
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if ($bar) {
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$bar->advance();
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}
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}
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if ($bar) {
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$bar->finish();
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$this->line('');
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} else {
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$this->info(count($interesting_files).' files were succesfully transferred');
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}
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foreach ($boring_files as $boring_file) {
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$this->warn($boring_file.' was skipped.');
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}
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}
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}
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