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[WIP] Initial rough stabs at the Backup Migrator. It kinda-sorta works? (#9457)
* Initial rough stabs at the Backup Migrator. It kinda-sorta works? * Fix hardcoded mysql path var
This commit is contained in:
Brady Wetherington
GitHub
parent
76897f3a3a
commit
6066005aeb
249
app/Console/Commands/RestoreFromBackup.php
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249
app/Console/Commands/RestoreFromBackup.php
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<?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 zip file to be migrated}';
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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 $description = 'Restore from a previously created backup';
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/**
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* Create a new command instance.
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*
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* @return void
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*/
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public function __construct()
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{
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parent::__construct();
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}
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/**
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* Execute the console command.
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*
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* @return mixed
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*/
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public function handle()
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{
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$dir = getcwd();
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print "Current working directory is: $dir\n";
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//
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$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);
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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.",
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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',
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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' // We probably don't want this in the first place.
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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', // don't want this neither
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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', //wait, what?!
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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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];
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$public_files = [
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'public/uploads/logo.png'
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];
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$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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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 = $stat_results['name'];
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// skip macOS resource fork files (?!?!?!)
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if(strpos($raw_path,"__MACOSX")!==false && strpos($raw_path,"._") !== false) {
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//print "SKIPPING macOS Resource fork file: $raw_path\n";
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continue;
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}
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if(strpos($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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if(@pathinfo($raw_path)['extension'] == "sql") {
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print "Found a sql file!\n";
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$sqlfiles[] = $raw_path;
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$sqlfile_indices[] = $i;
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}
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foreach($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' => $i];
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if($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: $raw_path!!!\n");
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}
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}
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}
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foreach($private_files+$public_files as $file) {
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$last_pos = strrpos($raw_path,$file); // no trailing slash!
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if($last_pos !== false ) {
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//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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if($last_pos + strlen($file) == strlen($raw_path)) { //again, no trailing slash
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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' => $i];
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}
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}
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}
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}
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// print_r($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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$pipes = [];
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// FIXME - absolutely can *NOT* be hardcoding paths like this!!!!!!! But I don't know how to do it right? (Maybe get the user's ENV and append the MYSQL_PWD to it?)
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$env_vars = getenv();
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$env_vars['MYSQL_PWD'] = config("database.connections.mysql.password");
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$proc_results = proc_open("mysql -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($stderr);
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return false;
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}
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while(($buffer = fgets($sql_contents)) !== false ) {
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//$this->info("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($stderr);
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return false;
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}
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}
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fclose($pipes[0]);
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fclose($sql_contents);
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fclose($pipes[1]);
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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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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($fp))!== false) {
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fwrite($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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}
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}
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}
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