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Ignore whitespace Rev 2431 → Rev 2432

/branches/v2.7-grelinette/jrest/scripts/ExtracteurMeta.php
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<?php
// declare(encoding='UTF-8');
/**
* Script d'extration des métadonnées des images pour intégration dans la BDD v2.
* Utilisation : /opt/lampp/bin/php cli.php ExtracteurMeta
*
* @category php 5.2
* @package Cel/Scripts
* @author Aurelien PERONNET <aurelien@tela-botanica.org>
* @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;
 
private $chemin_images = '';
private $bdd = null;
private $script = null;
 
private $idImg = null;
private $metaComplet = null;
private $exif = null;
private $iptc = null;
private $xmp = null;
private $makerNotes = null;
private $metaAutres = null;
 
 
public function __construct(Conteneur $conteneur) {
$this->chemin_images = $conteneur->getParametre('cel.chemin_images');
$this->bdd = $conteneur->getBdd();
$this->script = $conteneur->getScript();
}
 
public function executer($arguments) {
echo "EXTRACTION des MÉTADONNÉES\n";
echo "Vérification config : ".$this->verifierConfig()."\n";
 
$images = $this->obtenirImagesEnBdd();
foreach ($images as $img) {
$this->idImg = $img['id_image'];
 
$cheminImage = $this->obtenirCheminImageOriginale($this->idImg);
if (file_exists($cheminImage)) {
$cmd = "exiftool -X -file:comment $cheminImage";
$metaFile = $this->executerCommandeSysteme($cmd);
 
if ($this->neccessiterRemplacement($metaFile) === true) {
//print "Remplacement : {$this->idImg} \n";
 
$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();
$this->mettreAJourBdd();
}
} else {
//print "Fichier image '{$this->idImg}' introuvable\n";
}
$this->script->afficherAvancement("Analyse des images");
}
print "\n";
}
 
private function verifierConfig() {
if (empty($this->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 obtenirImagesEnBdd() {
$requete = 'SELECT id_image FROM cel_images ';
$images = $this->bdd->requeter($requete);
return $images;
}
 
private function executerCommandeSysteme($commande) {
$handle = popen($commande, 'r');
$metaXml = '';
while (!feof($handle)) {
$metaXml .= fread($handle, 8192);
}
fclose($handle);
return $metaXml;
}
 
private function obtenirCheminImageRDF() {
return $this->obtenirCheminImage('RDF', 'xml');
}
 
private function obtenirCheminImageOriginale() {
return $this->obtenirCheminImage('O');
}
 
private function obtenirCheminImage($format, $extension = 'jpg') {
$nom = $this->convertirIdBddVersNomFichier($format, $extension);
$cheminDossier = $this->obtenirDossierPourFormat($format);
if (file_exists($cheminDossier) === false) {
$this->creerDossier($cheminDossier);
}
return $cheminDossier.'/'.$nom;
}
 
private function convertirIdBddVersNomFichier($format, $extension) {
$id_avec_zeros = sprintf('%09s', $this->idImg) ;
$id_avec_zeros_underscores = wordwrap($id_avec_zeros, 3 , '_', true) ;
$nom_fichier = $id_avec_zeros_underscores.'_'.$format.'.'.$extension;
return $nom_fichier;
}
 
private function obtenirDossierPourFormat($format) {
$id = sprintf('%09s', $this->idImg);
$id = wordwrap($id, 3 , '_', true);
list($dossierNiveau1, $dossierNiveau2) = explode('_', $id);
 
$chemin_sur_serveur_final = $this->chemin_images.'/'.$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";
}
}
?>