Subversion Repositories eFlore/Applications.cel

<?php

// declare(encoding='UTF-8');

/**

 * Script d'extration des métadonnées des images pour intégration dans la BDD v2.

 *

 * @category	php 5.2

 * @package		Cel/Scripts

 * @author		Jean-Pascal MILCENT <jpm@tela-botanica.org>

 * @copyright	Copyright (c) 2012, Tela Botanica (accueil@tela-botanica.org)

 * @license	http://www.cecill.info/licences/Licence_CeCILL_V2-fr.txt Licence CECILL

 * @license	http://www.gnu.org/licenses/gpl.html Licence GNU-GPL

 * @version	$Id$

 */

class ExtracteurMeta {

	const DROIT = 0705;

	public $config;

	public $bdd;

	private $idImg = null;

	private $metaComplet = null;

	private $exif = null;

	private $iptc = null;

	private $xmp = null;

	private $makerNotes = null;

	private $metaAutres = null;

	public function __construct($config, Conteneur $conteneur = null) {

		// Tableau contenant la config de Jrest

		$this->config = $config;

		$conteneur = is_null($conteneur) ? new Conteneur($this->config) : $conteneur;

		$this->bdd = $conteneur->getBdd();

	}

	public function executer($arguments) {

		$this->idImg = $arguments[0];

		echo "EXTRACTION des MÉTADONNÉES\n";

		echo "Vérification config : ".$this->verifierConfig()."\n";

		$cheminImage = $this->obtenirCheminImageOriginale($this->idImg);

		$cmd = "exiftool -X -file:comment $cheminImage";

		$metaFile = $this->executerCommandeSysteme($cmd);

		$remplacement = 'NON';

		if ($this->neccessiterRemplacement($metaFile) === true) {

			$remplacement = 'OUI';

			$cmd = "exiftool -X -D -U -b -c '%.6f' -d '%Y-%m-%d %H:%M:%S' -All $cheminImage";

			$this->metaComplet = $this->executerCommandeSysteme($cmd);

			$cmd = "exiftool -X -D -c '%.6f' -d '%Y-%m-%d %H:%M:%S' -exif:all $cheminImage";

			$this->exif = $this->executerCommandeSysteme($cmd);

			$cmd = "exiftool -X -D -c '%.6f' -d '%Y-%m-%d %H:%M:%S' -iptc:all $cheminImage";

			$this->iptc = $this->executerCommandeSysteme($cmd);

			$cmd = "exiftool -X -D -c '%.6f' -d '%Y-%m-%d %H:%M:%S' -xmp:all $cheminImage";

			$this->xmp = $this->executerCommandeSysteme($cmd);

			$cmd = "exiftool -X -D -c '%.6f' -d '%Y-%m-%d %H:%M:%S' -makernotes:all $cheminImage";

			$this->makerNotes = $this->executerCommandeSysteme($cmd);

			$cmd = "exiftool -X -D -c '%.6f' -d '%Y-%m-%d %H:%M:%S' --exif:all --iptc:all --xmp:all --makernotes:all $cheminImage";

			$this->metaAutres = $this->executerCommandeSysteme($cmd);

			$this->ecrireFichierRdf();

			$this->mettreAJourBdd();

		}

		echo "Remplacement : $remplacement \n";

	}

	private function verifierConfig() {

		if (empty($this->config['cel']['chemin_images'])) {

			$message = "Vous devez indiquer le dossier contenant la hiérarchie des images dans le paramètre : ".

				"[cel] chemin_images";

			$code = (string) E_USER_ERROR;

			throw new Exception($message);

		}

		return 'OK';

	}

	private function executerCommandeSysteme($commande) {

		$handle = popen($commande, 'r');

		$metaXml = '';

		while (!feof($handle)) {

			$metaXml .= fread($handle, 8192);

		}

		fclose($handle);

		return $metaXml;

	}

	private function obtenirCheminImageRDF($id_image) {

		return $this->obtenirCheminImage($id_image, 'RDF', 'xml');

	}

	private function obtenirCheminImageOriginale($id_image) {

		return $this->obtenirCheminImage($id_image, 'O');

	}

	private function obtenirCheminImage($id_image, $format, $extension = 'jpg') {

		$nom = $this->convertirIdBddVersNomFichier($id_image, $format, $extension);

		$cheminDossier = $this->obtenirDossierPourFormat($id_image, $format);

		if (file_exists($cheminDossier) === false) {

			$this->creerDossier($cheminDossier);

		}

		return $cheminDossier.'/'.$nom;

	}

	private function convertirIdBddVersNomFichier($id, $format, $extension) {

		$id_avec_zeros = sprintf('%09s', $id) ;

		$id_avec_zeros_underscores = wordwrap($id_avec_zeros, 3 , '_', true) ;

		$nom_fichier = $id_avec_zeros_underscores.'_'.$format.'.'.$extension;

		return $nom_fichier;

	}

	private function obtenirDossierPourFormat($id, $format) {

		$chemin_base = $this->config['cel']['chemin_images'];

		$chemin_sur_serveur = $chemin_base;

		$id = sprintf('%09s', $id);

		$id = wordwrap($id, 3 , '_', true);

		list($dossierNiveau1, $dossierNiveau2) = explode('_', $id);

		$chemin_sur_serveur_final = $chemin_sur_serveur.'/'.$dossierNiveau1.'/'.$dossierNiveau2.'/'.$format;

		return $chemin_sur_serveur_final;

	}

	private function creerDossier($cheminDossier) {

		umask(0);

		if (mkdir($cheminDossier, self::DROIT, true) === false) {

			$message = "Problème durant la création du dossier '$cheminDossier'.";

			throw new Exception($message);

		}

	}

	private function neccessiterRemplacement($metaXml) {

		$meta = new SimpleXMLElement($metaXml);

		$rdf = $meta->children('http://www.w3.org/1999/02/22-rdf-syntax-ns#');

		$file = $rdf->children('http://ns.exiftool.ca/File/1.0/');

		return strpos($file->Comment, "CREATOR: gd-jpeg") === false ? true : false;

	}

	private function ecrireFichierRdf() {

		$cheminRdf = $this->obtenirCheminImageRDF($this->idImg);

		file_put_contents($cheminRdf, $this->metaComplet);

	}

	private function mettreAJourBdd() {

		$idImg = $this->bdd->proteger($this->idImg);

		$exif = $this->bdd->proteger($this->exif);

		$iptc = $this->bdd->proteger($this->iptc);

		$xmp = $this->bdd->proteger($this->xmp);

		$makerNotes = $this->bdd->proteger($this->makerNotes);

		$autres = $this->bdd->proteger($this->metaAutres);

		$requete = 'UPDATE cel_images SET '.

			"	meta_exif = $exif, ".

			"	meta_iptc = $iptc, ".

			"	meta_xmp = $xmp, ".

			"	meta_makernote = $makerNotes, ".

			"	meta_autres = $autres ".

			"WHERE id_image = $idImg ";

		$resultat = $this->bdd->executer($requete);

		echo "Mise à jour image '{$this->idImg}' : $resultat\n";

	}

}

?>