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<?php |
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/** |
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* Reader which uses native PHP functionality to read EXIF data |
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* |
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* @category PHPExif |
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* @copyright Copyright (c) 2016 Tom Van Herreweghe <[email protected]> |
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* @license http://github.com/PHPExif/php-exif-native/blob/master/LICENSE MIT License |
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* @link http://github.com/PHPExif/php-exif-native for the canonical source repository |
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* @package Native |
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*/ |
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namespace PHPExif\Adapter\Native; |
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use PHPExif\Common\Adapter\MapperInterface; |
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use PHPExif\Common\Adapter\ReaderInterface; |
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use PHPExif\Common\Data\Exif; |
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use PHPExif\Common\Data\Iptc; |
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use PHPExif\Common\Data\Metadata; |
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use PHPExif\Common\Exception\Reader\NoExifDataException; |
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/** |
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* Reader |
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* |
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* Reads EXIF data |
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* |
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* @category PHPExif |
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* @package Native |
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*/ |
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final class Reader implements ReaderInterface |
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{ |
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const SECTIONS = 'sections'; |
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const ARRAYS = 'asArrays'; |
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const THUMBNAILINFO = 'thumbnailInfo'; |
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const WITHIPTC = 'withIptc'; |
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/** |
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* @var MapperInterface |
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*/ |
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private $mapper; |
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/** |
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* @var string |
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*/ |
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private $sections; |
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/** |
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* @var boolean |
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*/ |
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private $asArrays; |
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/** |
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* @var boolean |
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*/ |
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private $thumbnailInfo; |
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/** |
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* @var boolean |
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*/ |
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private $withIptc; |
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/** |
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* @param MapperInterface $mapper |
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* @param array $config |
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*/ |
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public function __construct( |
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MapperInterface $mapper, |
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array $config = [] |
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) { |
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$defaults = [ |
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self::SECTIONS => null, |
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self::ARRAYS => false, |
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self::THUMBNAILINFO => false, |
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self::WITHIPTC => true, |
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]; |
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$config = array_replace($defaults, $config); |
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$this->sections = $config[self::SECTIONS]; |
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$this->asArrays = (bool) $config[self::ARRAYS]; |
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$this->thumbnailInfo = (bool) $config[self::THUMBNAILINFO]; |
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$this->withIptc = (bool) $config[self::WITHIPTC]; |
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$this->mapper = $mapper; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getMapper() |
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{ |
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return $this->mapper; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getMetadataFromFile($filePath) |
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{ |
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$data = @exif_read_data( |
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$filePath, |
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$this->sections, |
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$this->asArrays, // flat array |
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$this->thumbnailInfo // no thumbnail |
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); |
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if (false === $data) { |
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throw NoExifDataException::fromFile($filePath); |
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} |
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$this->augmentDataWithIptcRawData($filePath, $data); |
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$data = $this->normalizeArrayKeys($data); |
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// map the data: |
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$mapper = $this->getMapper(); |
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$metadata = new Metadata( |
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new Exif, |
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new Iptc |
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); |
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$mapper->map($data, $metadata); |
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return $metadata; |
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} |
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/** |
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* Lowercases the keys for given array |
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* |
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* @param array $data |
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* |
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* @return array |
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*/ |
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private function normalizeArrayKeys(array $data) |
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{ |
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$keys = array_keys($data); |
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$keys = array_map('strtolower', $keys); |
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$values = array_values($data); |
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$values = array_map(function ($value) { |
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if (!is_array($value)) { |
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return $value; |
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} |
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return $this->normalizeArrayKeys($value); |
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}, $values); |
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return array_combine( |
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$keys, |
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$values |
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); |
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} |
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/** |
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* Adds data from iptcparse to the original raw EXIF data |
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* |
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* @param string $filePath |
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* @param array $data |
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* |
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* @return void |
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*/ |
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private function augmentDataWithIptcRawData($filePath, array &$data) |
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{ |
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if (!$this->withIptc) { |
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return; |
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} |
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getimagesize($filePath, $info); |
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if (!array_key_exists('APP13', $info)) { |
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return; |
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} |
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$iptcRawData = iptcparse($info['APP13']); |
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// UTF8 |
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if (isset($iptcRawData["1#090"]) && $iptcRawData["1#090"][0] == "\x1B%G") { |
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$iptcRawData = array_map('utf8_encode', $iptcRawData); |
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} |
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// Merge with original raw Exif data |
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$data = array_merge( |
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$data, |
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$iptcRawData |
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); |
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} |
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} |
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PHPExif /
php-exif-native
