/**
* Fill in the properties of this bitstream given its path. The file must
* accessible by the web server.
*
* @deprecated
* @throws Zend_Exception
*/
public function fillPropertiesFromPath()
{
// Check if the path exists
if (!isset($this->path) || empty($this->path)) {
throw new Zend_Exception('BitstreamDao path is not set in fillPropertiesFromPath()');
}
// TODO: Compute the full path from the asset store. For now using the path.
$this->setMimetype($this->Component->MimeType->getType($this->path));
// clear the stat cache, as the underlying file might have changed
// since the last time filesize was called on the same filepath
clearstatcache();
$this->setSizebytes(UtilityComponent::fileSize($this->path));
if (!isset($this->checksum) || empty($this->checksum)) {
$this->setChecksum(UtilityComponent::md5file($this->path));
}
}
/**
* Calling this will stream the file to the client.
* The parameter is a bitstream dao.
* Optional second parameter is the download offset in bytes.
*
* @param BitstreamDao $bitstream
* @param int $offset
* @param bool $incrementDownload
* @throws Zend_Exception
*/
public function download($bitstream, $offset = 0, $incrementDownload = false)
{
// Disable gzip output on apache servers (otherwise no progress in browser)
if (function_exists('apache_setenv')) {
apache_setenv('no-gzip', '1');
}
$mimetype = $bitstream->getMimetype();
$path = $bitstream->getAssetstore()->getPath() . '/' . $bitstream->getPath();
$name = $bitstream->getName();
if (!file_exists($path)) {
throw new Zend_Exception('Unable to find file on the disk');
}
$chunkSize = 1024 * 64;
$fileSize = UtilityComponent::fileSize($path);
$handle = fopen($path, 'rb');
if ($handle === false) {
throw new Zend_Exception('Unable to open the file');
}
if (!$this->testingmode) {
// don't send any headers in testing mode since it will break it
$modified = gmdate('D, d M Y H:i:s') . ' GMT';
$contentType = $mimetype;
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Last-Modified: ' . $modified);
// if pdf set the content-type accordingly
if (!isset($contentType) && pathinfo($name, PATHINFO_EXTENSION) == 'pdf') {
$contentType = 'application/pdf';
$enableContentDisposition = false;
}
if (!isset($contentType)) {
$contentType = 'application/octet-stream';
}
// Hack for .vsp files (for OSA)
if (!isset($contentType) && strlen($name) > 4 && substr($name, strlen($name) - 4, 4) == '.vsp') {
$contentType = 'application/isp';
}
$agent = env('HTTP_USER_AGENT');
if (preg_match('%Opera(/| )([0-9].[0-9]{1,2})%', $agent) || preg_match('/MSIE ([0-9].[0-9]{1,2})/', $agent)) {
header('Content-Type: ' . $contentType);
header('Content-Disposition: attachment; filename="' . $name . '"');
header('Expires: 0');
header('Accept-Ranges: bytes');
header('Cache-Control: private', false);
header('Pragma: private');
$httpRange = env('HTTP_RANGE');
if (isset($httpRange)) {
// HTTP range is of the form "bytes=n-" where n is the offset
list(, $range) = explode('=', $httpRange);
$firstByte = strstr($range, '-', true);
$lastByte = $fileSize - 1;
$length = $fileSize - $firstByte;
header('HTTP/1.1 206 Partial Content');
header('Content-Length: ' . $length);
header('Content-Range: bytes ' . $firstByte . '-' . $lastByte . '/' . $fileSize);
fseek($handle, $firstByte);
} else {
header('Content-Length: ' . $fileSize);
}
} else {
header('Accept-Ranges: bytes');
header('Expires: 0');
header('Content-Type: ' . $contentType);
header('Content-Length: ' . $fileSize);
if (!isset($enableContentDisposition) || $enableContentDisposition == true) {
header('Content-Disposition: attachment; filename="' . $name . '"');
}
if (isset($httpRange)) {
list(, $range) = explode('=', $httpRange);
$firstByte = strstr($range, '-', true);
$lastByte = $fileSize - 1;
$length = $fileSize - $firstByte;
header('HTTP/1.1 206 Partial Content');
header('Content-Length: ' . $length);
header('Content-Range: bytes ' . $firstByte . '-' . $lastByte . '/' . $fileSize);
fseek($handle, $firstByte);
}
}
}
ignore_user_abort(true);
// must call this so the script doesn't end as soon as connection closed
// close the database connection so we don't get too many connections problems
Zend_Registry::get('dbAdapter')->closeConnection();
session_write_close();
// unlock session writing for concurrent access
// kill the whole ob stack (Zend uses double nested output buffers)
while (!$this->testingmode && ob_get_level() > 0) {
ob_end_clean();
}
if (is_numeric($offset) && $offset > 0 && $offset <= $fileSize) {
fseek($handle, $offset);
}
while (!feof($handle) && connection_status() == 0) {
echo fread($handle, $chunkSize);
}
if ($incrementDownload && feof($handle)) {
// Only record downloads that actually complete
/** @var ItemModel $itemModel */
$itemModel = MidasLoader::loadModel('Item');
$itemModel->incrementDownloadCount($bitstream->getItemrevision()->getItem());
}
fclose($handle);
if (!$this->testingmode) {
// don't exit if we are in testing mode
exit;
}
}
/**
* Save new revision in the database.
*
* @param UserDao $userDao The user who is creating the revision
* @param string $name The name of the file being used to create the revision
* @param string $path
* @param string $changes The changes comment by the user
* @param int $itemId The item to create the new revision in
* @param null|int $itemRevisionNumber [optional][default=null] Revision number for the item
* @param null|int $license [optional][default=null] License text for the revision
* @param string $fileChecksum [optional][default=''] If passed, will use it instead of calculating it ourselves
* @param bool $copy [optional][default=false] If true, will copy the file. Otherwise it will just move it into the assetstore.
* @param null|int $fileSize If passed, will use it instead of calculating it ourselves
* @param null|string $mimeType If passed, will use it instead of calculating it ourselves
* @return ItemDao
* @throws Zend_Exception
*/
public function createNewRevision($userDao, $name, $path, $changes, $itemId, $itemRevisionNumber = null, $license = null, $fileChecksum = '', $copy = false, $fileSize = null, $mimeType = null)
{
if ($userDao === null) {
throw new Zend_Exception('Please log in');
}
/** @var ItemModel $itemModel */
$itemModel = MidasLoader::loadModel('Item');
$itemDao = $itemModel->load($itemId);
if ($itemDao === false) {
throw new Zend_Exception('Unable to find item');
}
/** @var ItemRevisionModel $itemRevisionModel */
$itemRevisionModel = MidasLoader::loadModel('ItemRevision');
/** @var null|ItemRevisionDao $itemRevisionDao */
$itemRevisionDao = null;
if (isset($itemRevisionNumber)) {
$revisions = $itemDao->getRevisions();
foreach ($revisions as $revision) {
if ($itemRevisionNumber == $revision->getRevision()) {
$itemRevisionDao = $revision;
break;
}
}
}
if (!$itemModel->policyCheck($itemDao, $userDao, MIDAS_POLICY_WRITE)) {
throw new Zend_Exception('Parent permissions errors');
}
if ($itemRevisionDao === null) {
/** @var ItemRevisionDao $itemRevisionDao */
$itemRevisionDao = MidasLoader::newDao('ItemRevisionDao');
$itemRevisionDao->setChanges($changes);
$itemRevisionDao->setUser_id($userDao->getKey());
$itemRevisionDao->setDate(date('Y-m-d H:i:s'));
$itemRevisionDao->setLicenseId($license);
$itemModel->addRevision($itemDao, $itemRevisionDao);
} else {
$itemRevisionDao->setChanges($changes);
if ($license !== null) {
$itemRevisionDao->setLicenseId($license);
}
$itemRevisionModel->save($itemRevisionDao);
}
/** @var BitstreamModel $bitstreamModel */
$bitstreamModel = MidasLoader::loadModel('Bitstream');
// Add bitstreams to the revision
/** @var BitstreamDao $bitstreamDao */
$bitstreamDao = MidasLoader::newDao('BitstreamDao');
$bitstreamDao->setName($name);
$bitstreamDao->setPath($path);
if (empty($fileChecksum)) {
$fileChecksum = UtilityComponent::md5file($path);
}
$bitstreamDao->setChecksum($fileChecksum);
if (is_null($fileSize)) {
$fileSize = UtilityComponent::fileSize($path);
}
$bitstreamDao->setSizebytes($fileSize);
if (is_null($mimeType)) {
/** @var MimeTypeComponent $mimeTypeComponent */
$mimeTypeComponent = MidasLoader::loadComponent('MimeType');
$mimeType = $mimeTypeComponent->getType($path, $name);
}
$bitstreamDao->setMimetype($mimeType);
/** @var AssetstoreModel $assetStoreModel */
$assetStoreModel = MidasLoader::loadModel('Assetstore');
$assetStoreDao = $assetStoreModel->getDefault();
if ($assetStoreDao === false) {
throw new Zend_Exception('Unable to load default asset store');
}
$bitstreamDao->setAssetstoreId($assetStoreDao->getKey());
// Upload the bitstream if necessary (based on the asset store type)
$this->uploadBitstream($bitstreamDao, $assetStoreDao, $copy);
$checksum = $bitstreamDao->getChecksum();
$tmpBitstreamDao = $bitstreamModel->getByChecksum($checksum);
if ($tmpBitstreamDao != false) {
$bitstreamDao->setPath($tmpBitstreamDao->getPath());
$bitstreamDao->setAssetstoreId($tmpBitstreamDao->getAssetstoreId());
}
$itemRevisionModel->addBitstream($itemRevisionDao, $bitstreamDao);
// now that we have updated the itemRevision, the item may be stale
$itemDao = $itemModel->load($itemId);
$this->getLogger()->debug('Revision uploaded: [' . $bitstreamDao->getName() . '] into revision ' . $itemRevisionDao->getKey() . ' (item ' . $itemDao->getKey() . ')');
Zend_Registry::get('notifier')->notifyEvent('EVENT_CORE_UPLOAD_FILE', array($itemRevisionDao->getItem()->toArray(), $itemRevisionDao->toArray()));
Zend_Registry::get('notifier')->callback('CALLBACK_CORE_UPLOAD_FILE', array($itemRevisionDao->getItem()->toArray(), $itemRevisionDao->toArray()));
return $itemDao;
}
/**
* Get the amount of data already uploaded.
*
* @param array $args
* @return array
* @throws Exception
*/
public function getOffset($args)
{
// check parameters
if (!array_key_exists($this->tokenParamName, $args)) {
throw new Exception('Parameter ' . $this->tokenParamName . ' is not defined', MIDAS_HTTPUPLOAD_PARAM_UNDEFINED);
}
$uploadToken = $args[$this->tokenParamName];
$offset = UtilityComponent::fileSize(UtilityComponent::getTempDirectory() . '/' . $uploadToken);
return array('offset' => $offset);
}
