/**
* Vaidate the file MIME type.
*
* @param string $file
* @return bool
*/
public function isValid($file)
{
$this->_file = $file;
// Detect the definitive MIME type.
$detect = new Omeka_File_MimeType_Detect($this->_file);
$this->_mimeType = $detect->detect();
// Set the relevant MIME type whitelist.
if ($this->_customWhitelist) {
$whitelist = $this->_customWhitelist;
} else {
$whitelist = self::DEFAULT_WHITELIST;
}
// Validate the MIME type against the whitelist.
if (in_array($this->_mimeType, explode(',', $whitelist))) {
// Valid MIME type. Set the MIME type to the ingest class so that it
// can assign it to the File record. Doing this avoids more than one
// call to the MIME type detection class.
Omeka_File_Ingest_AbstractIngest::$mimeType = $this->_mimeType;
return true;
} else {
// Invalid MIME type.
Zend_Debug::dump(explode(',', $whitelist));
$this->_error(self::INVALID_TYPE);
return false;
}
}
function _dimensions_from_exif($image, $size = 'original')
{
try {
$fn = _get_full_path($image, $size);
$d = new Omeka_File_MimeType_Detect($fn);
if (array_search($d->detect(), array('image/tiff', 'image/jpeg'))) {
$exif_md = exif_read_data($fn, 'COMPUTED');
return array('width' => $exif_md['COMPUTED']['Width'], 'height' => $exif_md['COMPUTED']['Height']);
} else {
return false;
}
} catch (Exception $e) {
$message = $e->getMessage();
_log("Getting dimensions using exif_read_data failed: {$message}");
return false;
}
}
/**
* Insert a File record corresponding to an ingested file and its metadata.
*
* @param string $newFilePath Path to the file within Omeka.
* @param string $oldFilename The original filename for the file. This will
* usually be displayed to the end user.
* @param array $elementMetadata See ActsAsElementText::addElementTextsByArray()
* for more information about the format of this array.
* @uses ActsAsElementText::addElementTextsByArray()
* @return File
*/
private function _createFile($newFilePath, $oldFilename, $elementMetadata = array())
{
// Normally, the MIME type validator sets the type to this class's
// static $mimeType property during validation. If that validator has
// been disabled (from the admin settings menu, for example), set the
// MIME type here.
if (self::$mimeType) {
$mimeType = self::$mimeType;
// Make sure types don't leak between files.
self::$mimeType = null;
} else {
$detect = new Omeka_File_MimeType_Detect($newFilePath);
$mimeType = $detect->detect();
}
$file = new File();
try {
$file->original_filename = $oldFilename;
$file->mime_type = $mimeType;
$file->setDefaults($newFilePath);
if ($elementMetadata) {
$file->addElementTextsByArray($elementMetadata);
}
fire_plugin_hook('after_ingest_file', array('file' => $file, 'item' => $this->_item));
$this->_item->addFile($file);
} catch (Exception $e) {
if (!$file->exists()) {
$file->unlinkFile();
}
throw $e;
}
return $file;
}
