/**
* This method actually does the processing of files locally
*
* takes the original file (on remote storages this will be fetched from the remote server)
* does the IM magic on the local server by creating a temporary typo3temp/ file
* copies the typo3temp/ file to the processing folder of the target storage
* removes the typo3temp/ file
*
* @param TaskInterface $task
* @return array
*/
public function process(TaskInterface $task)
{
$targetFile = $task->getTargetFile();
// Merge custom configuration with default configuration
$configuration = array_merge(array('width' => 64, 'height' => 64), $task->getConfiguration());
$configuration['width'] = Utility\MathUtility::forceIntegerInRange($configuration['width'], 1, 1000);
$configuration['height'] = Utility\MathUtility::forceIntegerInRange($configuration['height'], 1, 1000);
$originalFileName = $targetFile->getOriginalFile()->getForLocalProcessing(FALSE);
// Create a temporary file in typo3temp/
if ($targetFile->getOriginalFile()->getExtension() === 'jpg') {
$targetFileExtension = '.jpg';
} else {
$targetFileExtension = '.png';
}
// Create the thumb filename in typo3temp/preview_....jpg
$temporaryFileName = Utility\GeneralUtility::tempnam('preview_') . $targetFileExtension;
// Check file extension
if ($targetFile->getOriginalFile()->getType() != Resource\File::FILETYPE_IMAGE && !Utility\GeneralUtility::inList($GLOBALS['TYPO3_CONF_VARS']['GFX']['imagefile_ext'], $targetFile->getOriginalFile()->getExtension())) {
// Create a default image
$this->processor->getTemporaryImageWithText($temporaryFileName, 'Not imagefile!', 'No ext!', $targetFile->getOriginalFile()->getName());
} else {
// Create the temporary file
if ($GLOBALS['TYPO3_CONF_VARS']['GFX']['im']) {
$parameters = '-sample ' . $configuration['width'] . 'x' . $configuration['height'] . ' ' . $this->processor->wrapFileName($originalFileName) . '[0] ' . $this->processor->wrapFileName($temporaryFileName);
$cmd = Utility\GeneralUtility::imageMagickCommand('convert', $parameters) . ' 2>&1';
Utility\CommandUtility::exec($cmd);
if (!file_exists($temporaryFileName)) {
// Create a error gif
$this->processor->getTemporaryImageWithText($temporaryFileName, 'No thumb', 'generated!', $targetFile->getOriginalFile()->getName());
}
}
}
return array('filePath' => $temporaryFileName);
}
/**
* Generates a preview for a file
*
* @param File $file The source file
* @param array $configuration Processing configuration
* @param string $targetFilePath Output file path
* @return array|NULL
*/
protected function generatePreviewFromFile(File $file, array $configuration, $targetFilePath)
{
$originalFileName = $file->getForLocalProcessing(FALSE);
// Check file extension
if ($file->getType() != File::FILETYPE_IMAGE && !GeneralUtility::inList($GLOBALS['TYPO3_CONF_VARS']['GFX']['imagefile_ext'], $file->getExtension())) {
// Create a default image
$this->processor->getTemporaryImageWithText($targetFilePath, 'Not imagefile!', 'No ext!', $file->getName());
} else {
// Create the temporary file
if ($GLOBALS['TYPO3_CONF_VARS']['GFX']['im']) {
$parameters = '-sample ' . $configuration['width'] . 'x' . $configuration['height'] . ' ' . $this->processor->wrapFileName($originalFileName) . '[0] ' . $this->processor->wrapFileName($targetFilePath);
$cmd = GeneralUtility::imageMagickCommand('convert', $parameters) . ' 2>&1';
CommandUtility::exec($cmd);
if (!file_exists($targetFilePath)) {
// Create a error gif
$this->processor->getTemporaryImageWithText($targetFilePath, 'No thumb', 'generated!', $file->getName());
}
}
}
return array('filePath' => $targetFilePath);
}
