/**
* {@inheritdoc}
*/
function saveFile(BackupFileReadableInterface $file)
{
// Set some default download headers.
$headers = array(array('key' => 'Content-Disposition', 'value' => 'attachment; filename="' . $file->getFullName() . '"'), array('key' => 'Cache-Control', 'value' => 'no-cache'));
// Set a mime-type header.
if ($mime = $file->getMeta('mimetype')) {
$headers[] = array('key' => 'Content-Type', 'value' => $mime);
} else {
// Get the mime type for this file if possible
$mime = 'application/octet-stream';
$mime = $this->plugins()->call('alterMime', $mime, array('ext' => $file->getExtLast()));
$headers[] = array('key' => 'Content-Type', 'value' => $mime);
}
// In some circumstances, web-servers will double compress gzipped files.
// This may help aleviate that issue by disabling mod-deflate.
if ($file->getMeta('mimetype') == 'application/x-gzip') {
if (function_exists('apache_setenv')) {
apache_setenv('no-gzip', '1');
}
$headers[] = array('key' => 'Content-Encoding', 'value' => 'gzip');
}
if ($size = $file->getMeta('filesize')) {
$headers[] = array('key' => 'Content-Length', 'value' => $size);
}
// Suppress the warning you get when the buffer is empty.
@ob_end_clean();
if ($file->openForRead()) {
foreach ($headers as $header) {
// To prevent HTTP header injection, we delete new lines that are
// not followed by a space or a tab.
// See http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2
$header['value'] = preg_replace('/\\r?\\n(?!\\t| )/', '', $header['value']);
header($header['key'] . ': ' . $header['value']);
}
// Transfer file in 1024 byte chunks to save memory usage.
while ($data = $file->readBytes(1024 * 512)) {
print $data;
}
$file->close();
}
// @TODO Throw exception.
}
/**
* {@inheritdoc}
*/
public function importFromFile(BackupFileReadableInterface $file)
{
if ($directory = $this->confGet('directory')) {
// Make sure the directory ends in exactly 1 slash:
if (substr($directory, -1) !== '/') {
$directory = $directory . '/';
}
if (!file_exists($directory)) {
throw new BackupMigrateException('The directory %dir does not exist to restore to.', array('%dir' => $directory));
}
if (!is_writable($directory)) {
throw new BackupMigrateException('The directory %dir cannot be written to because of the operating system file permissions.', array('%dir' => $directory));
}
if (!($reader = $this->getArchiveReader())) {
throw new BackupMigrateException('A file directory source requires an archive reader object.');
}
// Check that the file endings match.
if ($reader->getFileExt() !== $file->getExtLast()) {
throw new BackupMigrateException('This source expects a .%ext file.', array('%ext' => $archiver->getFileExt()));
}
$reader->setArchive($file);
$reader->extractTo($directory);
$reader->closeArchive();
return TRUE;
}
return FALSE;
}
/**
* Run on a restore
*
* @param \BackupMigrate\Core\File\BackupFileReadableInterface $file
* @return \BackupMigrate\Core\File\BackupFileReadableInterface
*/
public function beforeRestore(BackupFileReadableInterface $file)
{
// If the file is not a supported compression type then simply return the same input file.
$out = $file;
$type = $file->getExtLast();
switch (strtolower($type)) {
case "gz":
case "gzip":
$out = $this->getTempFileManager()->popExt($file);
$this->_gzipDecode($file, $out);
break;
case "bz":
case "bz2":
case "bzip":
case "bzip2":
$out = $this->getTempFileManager()->popExt($file);
$this->_bzipDecode($file, $out);
break;
case "zip":
$out = $this->getTempFileManager()->popExt($file);
$this->_ZipDecode($file, $out);
break;
}
return $out;
}
