/**
* Apply appropriate headers to the request
*
* @return void
*/
public function setHeaders()
{
$expire_in = getenv('CACHE_EXPIRATION_HOURS') ?: $this->cache_expiration_hours;
// Set time for cache expires. Default to 120 days (2880 hours)
$expires = $this->getRfcCompliantDate(Carbon::now(), $expire_in);
$last_modified = $this->getRfcCompliantDate(Carbon::now(), 0);
$max_age_seconds = $expire_in * 60 * 60;
header("Last-Modified: {$last_modified}");
header("Cache-Control: max-age={$max_age_seconds}");
header("Expires: {$expires}");
// File specific headers
header('Content-Type: ' . $this->file->getMimeType());
}
/**
* Set up file object
*
* @param string|array $allowed_hosts
* @return \Fuzz\ImageResizer\File
*/
public function setupFile($allowed_hosts)
{
if (is_string($allowed_hosts)) {
$this->checkDomain(explode(',', $allowed_hosts));
} else {
$this->checkDomain($allowed_hosts);
}
// Setup file
return $this->file = File::createFromBlob(file_get_contents($this->source));
}
/**
* Ensure that the request contains valid options
*
* @param array $options
* @return array
*/
private function validateOptions(array $options)
{
$required_options = ['width' => 'is_numeric', 'height' => 'is_numeric'];
foreach ($required_options as $required => $validator) {
if (!array_key_exists($required, $options) || is_null($options[$required]) || !$validator($options[$required])) {
http_response_code(400);
throw new InvalidArgumentException("The {$required} parameter is missing or invalid.");
}
}
$options['format'] = $this->getOptionsKey($options, 'format', $this->file->getExtension());
$options['crop'] = $this->getOptionsKey($options, 'crop', false);
$options['min_quality'] = $this->getOptionsKey($options, 'min_quality', self::FULL_COMPRESSION);
$options['max_quality'] = $this->getOptionsKey($options, 'max_quality', self::NO_COMPRESSION);
$options['max_file_size_bytes'] = $this->getOptionsKey($options, 'max_file_size_bytes', false);
return $options;
}
public function testItCanReturnRawImageData()
{
$blob = file_get_contents($this->getPlaceholditImage(300, 300));
$file = File::createFromBlob($blob);
$this->assertTrue(is_string($file->getRaw()));
}
public function testItSetsCompressionQuality()
{
$file = File::createFromBlob(file_get_contents(__DIR__ . '/images/stock-photo.jpg'));
// ~814kb
$image = new Image($file, false);
$options = ['height' => '200', 'width' => '400', 'min_quality' => 2, 'max_quality' => 100, 'max_file_size_bytes' => 800000];
$image->alterImage($options);
$this->assertEquals(96, $image->getImageHandler()->getImageCompressionQuality());
}
/**
* Validate that the file passed to the constructor is an image.
*
* @param \Fuzz\ImageResizer\File $file
*/
private function validateFile(File $file)
{
if (!$file->isImage()) {
http_response_code(400);
throw new InvalidArgumentException('The file is not an image. Abort!');
}
}
public function getImageFile($height, $width)
{
return File::createFromBlob(file_get_contents($this->getPlaceholditImage($height, $width)));
}
