DNRoot::doUploadSnapshot PHP Method

    public function doUploadSnapshot($data, \Form $form)
    {
        $this->setCurrentActionType(self::ACTION_SNAPSHOT);
        // Performs canView permission check by limiting visible projects
        $project = $this->getCurrentProject();
        if (!$project) {
            return $this->project404Response();
        }
        $validEnvs = $project->DNEnvironmentList()->filterByCallback(function ($item) {
            return $item->canUploadArchive();
        });
        // Validate $data['EnvironmentID'] by checking against $validEnvs.
        $environment = $validEnvs->find('ID', $data['EnvironmentID']);
        if (!$environment) {
            throw new LogicException('Invalid environment');
        }
        $this->validateSnapshotMode($data['Mode']);
        $dataArchive = DNDataArchive::create(['AuthorID' => Member::currentUserID(), 'EnvironmentID' => $data['EnvironmentID'], 'IsManualUpload' => true]);
        // needs an ID and transfer to determine upload path
        $dataArchive->write();
        $dataTransfer = DNDataTransfer::create(['AuthorID' => Member::currentUserID(), 'Mode' => $data['Mode'], 'Origin' => 'ManualUpload', 'EnvironmentID' => $data['EnvironmentID']]);
        $dataTransfer->write();
        $dataArchive->DataTransfers()->add($dataTransfer);
        $form->saveInto($dataArchive);
        $dataArchive->write();
        $workingDir = TEMP_FOLDER . DIRECTORY_SEPARATOR . 'deploynaut-transfer-' . $dataTransfer->ID;
        $cleanupFn = function () use($workingDir, $dataTransfer, $dataArchive) {
            $process = new AbortableProcess(sprintf('rm -rf %s', escapeshellarg($workingDir)));
            $process->setTimeout(120);
            $process->run();
            $dataTransfer->delete();
            $dataArchive->delete();
        };
        // extract the sspak contents so we can inspect them
        try {
            $dataArchive->extractArchive($workingDir);
        } catch (Exception $e) {
            $cleanupFn();
            $form->sessionMessage('There was a problem trying to open your snapshot for processing. Please try uploading again', 'bad');
            return $this->redirectBack();
        }
        // validate that the sspak contents match the declared contents
        $result = $dataArchive->validateArchiveContents();
        if (!$result->valid()) {
            $cleanupFn();
            $form->sessionMessage($result->message(), 'bad');
            return $this->redirectBack();
        }
        // fix file permissions of extracted sspak files then re-build the sspak
        try {
            $dataArchive->fixArchivePermissions($workingDir);
            $dataArchive->setArchiveFromFiles($workingDir);
        } catch (Exception $e) {
            $cleanupFn();
            $form->sessionMessage('There was a problem processing your snapshot. Please try uploading again', 'bad');
            return $this->redirectBack();
        }
        // cleanup any extracted sspak contents lying around
        $process = new AbortableProcess(sprintf('rm -rf %s', escapeshellarg($workingDir)));
        $process->setTimeout(120);
        $process->run();
        return $this->customise(['Project' => $project, 'CurrentProject' => $project, 'SnapshotsSection' => 1, 'DataArchive' => $dataArchive, 'DataTransferRestoreForm' => $this->getDataTransferRestoreForm($this->request, $dataArchive), 'BackURL' => $project->Link('snapshots')])->renderWith(['DNRoot_uploadsnapshot', 'DNRoot']);
    }