/**
* Filter an image's URL to enforce restrictions on its dimensions
*
* @see bbcode_firstpass::bbcode_img()
*
* @param string $url Original URL
* @param array $url_config Config used by the URL filter
* @param Logger $logger
* @param integer $max_height Maximum height allowed
* @param integer $max_width Maximum width allowed
* @return string|bool Original value if valid, FALSE otherwise
*/
public static function filter_img_url($url, array $url_config, Logger $logger, $max_height, $max_width)
{
// Validate the URL
$url = BuiltInFilters::filterUrl($url, $url_config, $logger);
if ($url === false) {
return false;
}
if ($max_height || $max_width) {
$imagesize = new \FastImageSize\FastImageSize();
$size_info = $imagesize->getImageSize($url);
if ($size_info === false) {
$logger->err('UNABLE_GET_IMAGE_SIZE');
return false;
}
if ($max_height && $max_height < $size_info['height']) {
$logger->err('MAX_IMG_HEIGHT_EXCEEDED', array('max_height' => $max_height));
return false;
}
if ($max_width && $max_width < $size_info['width']) {
$logger->err('MAX_IMG_WIDTH_EXCEEDED', array('max_width' => $max_width));
return false;
}
}
return $url;
}
/**
* @testdox filterUrl() can be called without a logger
*/
public function testUrlNoLogger()
{
$urlConfig = ['allowedSchemes' => '/^https?$/', 'disallowedHosts' => '/evil/'];
$urls = ['http://example.org' => 'http://example.org', 'http://evil.org' => false, 'hax://example.org' => false];
foreach ($urls as $original => $expected) {
$this->assertSame($expected, BuiltInFilters::filterUrl($original, $urlConfig));
}
}