public function test_archive_with_both_options()
{
global $CFG;
$this->resetAfterTest();
// Get backup packer.
$packer = get_file_packer('application/vnd.moodle.backup');
require_once $CFG->dirroot . '/lib/filestorage/tgz_packer.php';
if (!tgz_packer::has_required_extension()) {
$this->markTestSkipped('zlib not available');
return;
}
// Set up basic archive contents.
$files = array('1.txt' => array('frog'));
// Create 2 archives (each with one file in) in default mode.
$CFG->enabletgzbackups = false;
$filefalse = $CFG->tempdir . '/false.mbz';
$this->assertNotEmpty($packer->archive_to_pathname($files, $filefalse));
$context = context_system::instance();
$this->assertNotEmpty($storagefalse = $packer->archive_to_storage($files, $context->id, 'phpunit', 'data', 0, '/', 'false.mbz'));
// Create 2 archives in tgz mode.
$CFG->enabletgzbackups = true;
$filetrue = $CFG->tempdir . '/true.mbz';
$this->assertNotEmpty($packer->archive_to_pathname($files, $filetrue));
$context = context_system::instance();
$this->assertNotEmpty($storagetrue = $packer->archive_to_storage($files, $context->id, 'phpunit', 'data', 0, '/', 'false.mbz'));
// Check the sizes are different (indicating different formats).
$this->assertNotEquals(filesize($filefalse), filesize($filetrue));
$this->assertNotEquals($storagefalse->get_filesize(), $storagetrue->get_filesize());
// Extract files into storage and into filesystem from both formats.
// (Note: the setting does not matter, but set to false just to check.)
$CFG->enabletgzbackups = false;
// Extract to path (zip).
$packer->extract_to_pathname($filefalse, $CFG->tempdir);
$onefile = $CFG->tempdir . '/1.txt';
$this->assertEquals('frog', file_get_contents($onefile));
unlink($onefile);
// Extract to path (tgz).
$packer->extract_to_pathname($filetrue, $CFG->tempdir);
$onefile = $CFG->tempdir . '/1.txt';
$this->assertEquals('frog', file_get_contents($onefile));
unlink($onefile);
// Extract to storage (zip).
$packer->extract_to_storage($storagefalse, $context->id, 'phpunit', 'data', 1, '/');
$fs = get_file_storage();
$out = $fs->get_file($context->id, 'phpunit', 'data', 1, '/', '1.txt');
$this->assertNotEmpty($out);
$this->assertEquals('frog', $out->get_content());
// Extract to storage (tgz).
$packer->extract_to_storage($storagetrue, $context->id, 'phpunit', 'data', 2, '/');
$out = $fs->get_file($context->id, 'phpunit', 'data', 2, '/', '1.txt');
$this->assertNotEmpty($out);
$this->assertEquals('frog', $out->get_content());
}
/**
* Checks if zlib is available. If not, marks current test as skipped.
*
* @return bool True if text should be skipped
*/
protected function skip_because_missing_zlib()
{
global $CFG;
require_once $CFG->dirroot . '/lib/filestorage/tgz_packer.php';
if (!tgz_packer::has_required_extension()) {
$this->markTestSkipped('zlib not available');
return true;
}
return false;
}
/**
* Selects appropriate packer for existing archive depending on file contents.
*
* @param string|stored_file $archivefile full pathname of zip file or stored_file instance
* @return file_packer Suitable packer
* @throws moodle_exception If the file cannot be restored because of missing zlib
*/
protected function get_packer_for_read_operation($archivefile)
{
global $CFG;
require_once $CFG->dirroot . '/lib/filestorage/tgz_packer.php';
if (tgz_packer::is_tgz_file($archivefile)) {
if (tgz_packer::has_required_extension()) {
return get_file_packer('application/x-gzip');
} else {
throw new moodle_exception('errortgznozlib', 'backup');
}
} else {
return get_file_packer('application/zip');
}
}
