function backup()
{
DHDO::logger('Begining Backup.');
global $wpdb;
if (!is_dir(content_url() . '/upgrade/')) {
DHDO::logger('Upgrade folder missing. This will cause serious issues with WP in general, so we will create it for you.');
mkdir(content_url() . '/upgrade/');
}
// Pull in data for what to backup
$sections = get_option('dh-do-backupsection');
if (!$sections) {
$sections = array();
}
$file = WP_CONTENT_DIR . '/upgrade/dreamobject-backups.zip';
$fileurl = content_url() . '/upgrade/dreamobject-backups.zip';
// Pre-Cleanup
if (file_exists($file)) {
@unlink($file);
DHDO::logger('Leftover zip file found, deleting ' . $file . ' ...');
}
try {
$zip = new ZipArchive($file);
$zaresult = true;
DHDO::logger('ZipArchive found and will be used for backups.');
} catch (Exception $e) {
$error_string = $e->getMessage();
$zip = new PclZip($file);
DHDO::logger('ZipArchive not found. Error: ' . $error_string);
DHDO::logger('PclZip will be used for backups.');
require_once ABSPATH . '/wp-admin/includes/class-pclzip.php';
$zaresult = false;
}
$backups = array();
// All me files!
if (in_array('files', $sections)) {
DHDO::logger('Calculating backup size...');
$trimdisk = WP_CONTENT_DIR;
$diskcmd = sprintf("du -s %s", WP_CONTENT_DIR);
$diskusage = exec($diskcmd);
$diskusage = trim(str_replace($trimdisk, '', $diskusage));
DHDO::logger(size_format($diskusage * 1024) . ' of diskspace will be processed.');
if ($diskusage < 2000 * 1024) {
$backups = array_merge($backups, DHDO::rscandir(WP_CONTENT_DIR));
DHDO::logger(count($backups) . ' files added to backup list.');
} else {
DHDO::logger('ERROR! PHP is unable to backup your wp-content folder. Please consider cleaning out unused files (like plugins and themes).');
}
if (file_exists(ABSPATH . 'wp-config.php')) {
$backups[] = ABSPATH . 'wp-config.php';
DHDO::logger('wp-config.php added to backup list.');
}
}
// And me DB!
if (in_array('database', $sections)) {
set_time_limit(300);
$sqlhash = wp_hash(wp_rand());
$sqlfile = WP_CONTENT_DIR . '/upgrade/' . $sqlhash . '.sql';
$tables = $wpdb->get_col("SHOW TABLES LIKE '" . $wpdb->prefix . "%'");
$tables_string = implode(' ', $tables);
// Pre cleanup
if (file_exists($sqlfile)) {
@unlink($sqlfile);
DHDO::logger('Leftover sql file found, deleting ' . $sqlfile . ' ...');
}
$dbcmd = sprintf("mysqldump -h'%s' -u'%s' -p'%s' %s %s --single-transaction 2>&1 >> %s", DB_HOST, DB_USER, DB_PASSWORD, DB_NAME, $tables_string, $sqlfile);
exec($dbcmd);
$sqlsize = size_format(@filesize($sqlfile));
DHDO::logger('SQL file created: ' . $sqlfile . ' (' . $sqlsize . ').');
$backups[] = $sqlfile;
DHDO::logger('SQL added to backup list.');
}
if (!empty($backups)) {
set_time_limit(300);
// Increased timeout to 5 minutes. If the zip takes longer than that, I have a problem.
if ($zaresult != 'true') {
DHDO::logger('Creating zip file using PclZip.');
DHDO::logger('NOTICE: If the log stops here, PHP failed to create a zip of your wp-content folder. Please consider increasing the server\'s PHP memory, RAM or CPU.');
$zip->create($backups);
} else {
DHDO::logger('Creating zip file using ZipArchive.');
DHDO::logger('NOTICE: If the log stops here, PHP failed to create a zip of your wp-content folder. Please consider cleaning out unused files (like plugins and themes), or increasing the server\'s PHP memory, RAM or CPU.');
try {
$zip->open($file, ZipArchive::CREATE);
$trimpath = ABSPATH;
foreach ($backups as $backupfiles) {
if (strpos($backupfiles, DIRECTORY_SEPARATOR . 'cache' . DIRECTORY_SEPARATOR) === false) {
$zip->addFile($backupfiles, 'dreamobjects-backup' . str_replace($trimpath, '/', $backupfiles));
//DHDO::logger( $backupfiles );
}
}
$zip->close();
} catch (Exception $e) {
$error_string = $e->getMessage();
DHDO::logger('ZipArchive failed to complete: ' . $error_string);
}
}
if (@file_exists($file)) {
DHDO::logger('Calculating zip file size ...');
$zipsize = size_format(@filesize($file));
DHDO::logger('Zip file generated: ' . $file . ' (' . $zipsize . ').');
} else {
@unlink($file);
DHDO::logger('Zip file failed to generate. Nothing will be backed up.');
}
// Delete SQL
if (file_exists($sqlfile)) {
@unlink($sqlfile);
DHDO::logger('Deleting SQL file: ' . $sqlfile . ' ...');
}
// Upload
if (@file_exists($file)) {
$s3 = AwsS3DHDO::factory(array('key' => get_option('dh-do-key'), 'secret' => get_option('dh-do-secretkey'), 'base_url' => get_option('dh-do-endpoint')));
$bucket = get_option('dh-do-bucket');
$parseUrl = parse_url(trim(home_url()));
$url = $parseUrl['host'];
if (isset($parseUrl['path'])) {
$url .= $parseUrl['path'];
}
// Rename file
$newname = $url . '/' . date_i18n('Y-m-d-His', current_time('timestamp')) . '.zip';
DHDO::logger('New filename ' . $newname . '.');
// Uploading
set_time_limit(180);
DHDO::logger('Beginning upload to Object Store servers.');
// Check the size of the file before we upload, in order to compensate for large files
if (@filesize($file) >= 100 * 1024 * 1024) {
// Files larger than 100megs go through Multipart
DHDO::logger('Filesize is over 100megs, using Multipart uploader.');
// High Level
DHDO::logger('Prepare the upload parameters and upload parts in 25M chunks.');
$uploader = UploadBuilder::newInstance()->setClient($s3)->setSource($file)->setBucket($bucket)->setKey($newname)->setMinPartSize(25 * 1024 * 1024)->setOption('Metadata', array('UploadedBy' => 'DreamObjectsBackupPlugin', 'UploadedDate' => date_i18n('Y-m-d-His', current_time('timestamp'))))->setOption('ACL', 'private')->setConcurrency(3)->build();
// This will be called in the following try
$uploader->getEventDispatcher()->addListener('multipart_upload.after_part_upload', function ($event) {
DHDO::logger('Part ' . $event["state"]->count() . ' uploaded ...');
});
try {
DHDO::logger('Begin upload. This may take a while (5min for every 75 megs or so).');
set_time_limit(180);
$uploader->upload();
DHDO::logger('Upload complete');
} catch (MultipartUploadException $e) {
$uploader->abort();
DHDO::logger('Upload failed: ' . $e->getMessage());
}
} else {
// If it's under 100megs, do it the old way
DHDO::logger('Filesize is under 100megs. This will be less spammy.');
set_time_limit(180);
// 3 min
try {
$result = $s3->putObject(array('Bucket' => $bucket, 'Key' => $newname, 'SourceFile' => $file, 'ContentType' => 'application/zip', 'ACL' => 'private', 'Metadata' => array('UploadedBy' => 'DreamObjectsBackupPlugin', 'UploadedDate' => date_i18n('Y-m-d-His', current_time('timestamp')))));
DHDO::logger('Upload complete');
} catch (S3Exception $e) {
DHDO::logger('Upload failed: ' . $e->getMessage());
}
}
/*
// https://dreamxtream.wordpress.com/2013/10/29/aws-php-sdk-logging-using-guzzle/
$s3->getEventDispatcher()->removeSubscriber($logPlugin);
*/
} else {
DHDO::logger('Nothing to upload.');
}
// Cleanup
if (file_exists($file)) {
@unlink($file);
DHDO::logger('Deleting zip file: ' . $file . ' ...');
}
if (file_exists($sqlfile)) {
@unlink($sqlfile);
DHDO::logger('Deleting SQL file: ' . $sqlfile . ' ...');
}
}
// Cleanup Old Backups
DHDO::logger('Checking for backups to be deleted.');
if ($backup_result = 'Yes' && get_option('dh-do-retain') && get_option('dh-do-retain') != 'all') {
$num_backups = get_option('dh-do-retain');
$s3 = AwsS3DHDO::factory(array('key' => get_option('dh-do-key'), 'secret' => get_option('dh-do-secretkey'), 'base_url' => get_option('dh-do-endpoint')));
$bucket = get_option('dh-do-bucket');
$parseUrl = parse_url(trim(home_url()));
$prefixurl = $parseUrl['host'];
if (isset($parseUrl['path'])) {
$prefixurl .= $parseUrl['path'];
}
$backups = $s3->getIterator('ListObjects', array('Bucket' => $bucket, "Prefix" => $prefixurl));
if ($backups !== false) {
$backups = $backups->toArray();
krsort($backups);
$count = 0;
foreach ($backups as $object) {
if (++$count > $num_backups) {
$s3->deleteObject(array('Bucket' => $bucket, 'Key' => $object['Key']));
DHDO::logger('Removed backup ' . $object['Key'] . ' from DreamObjects, per user retention choice.');
}
}
}
} else {
DHDO::logger('Per user retention choice, not deleteing a single old backup.');
}
DHDO::logger('Backup Complete.');
DHDO::logger('');
}
