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<?php
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// declare(encoding='UTF-8');
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/**
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* Classe modèle spécifique à l'application, donc d'accés au données, elle ne devrait pas être appelée de l'extérieur.
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*
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* @category php5
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* @package Widget
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* @author Jean-Pascal MILCENT <jpm@tela-botanica.org>
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* @copyright 2010 Tela-Botanica
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* @license http://www.cecill.info/licences/Licence_CeCILL_V2-fr.txt Licence CECILL
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* @license http://www.gnu.org/licenses/gpl.html Licence GNU-GPL
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* @version SVN: $Id$
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*/
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class Dao {
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const HTTP_URL_REQUETE_SEPARATEUR = '&';
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const HTTP_URL_REQUETE_CLE_VALEUR_SEPARATEUR = '=';
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private $http_methodes = array('GET', 'POST', 'PUT', 'DELETE', 'HEAD', 'OPTIONS', 'CONNECT', 'TRACE');
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protected $parametres = null;
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private $url = null;
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private $reponse_entetes = null;
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//+----------------------------------------------------------------------------------------------------------------+
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// ACCESSEURS
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public function getReponseEntetes($cle) {
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return $this->reponse_entetes;
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}
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public function getParametre($cle) {
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$valeur = (isset($this->parametres[$cle])) ? $this->parametres[$cle] : null;
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return $valeur;
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}
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public function ajouterParametre($cle, $valeur) {
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$this->parametres[$cle] = $valeur;
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}
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public function supprimerParametre($cle) {
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unset($this->parametres[$cle]);
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}
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public function nettoyerParametres() {
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$this->parametres = null;
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}
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//+----------------------------------------------------------------------------------------------------------------+
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// MÉTHODES
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public function consulter($url) {
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$retour = $this->envoyerRequete($url, 'GET');
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return $retour;
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}
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public function ajouter($url, Array $donnees) {
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$retour = $this->envoyerRequete($url, 'PUT', $donnees);
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return $retour;
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}
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public function modifier($url, Array $donnees) {
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$retour = $this->envoyerRequete($url, 'POST', $donnees);
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return $retour;
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}
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public function supprimer($url) {
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$retour = $this->envoyerRequete($url, 'DELETE');
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return $retour;
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}
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public function envoyerRequete($url, $mode, Array $donnees = array()) {
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$this->url = $url;
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$contenu = false;
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if (! in_array($mode, $this->http_methodes)) {
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$e = "Le mode de requête '$mode' n'est pas accepté!";
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trigger_error($e, E_USER_WARNING);
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} else {
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if ($mode == 'GET') {
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$this->traiterUrlParametres();
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}
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$contexte = stream_context_create(array(
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'http' => array(
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'method' => $mode,
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'header' => "Content-type: application/x-www-form-urlencoded\r\n",
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'content' => http_build_query($donnees, null, self::HTTP_URL_REQUETE_SEPARATEUR))));
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$flux = @fopen($this->url, 'r', false, $contexte);
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if (!$flux) {
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$this->reponse_entetes = $http_response_header;
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$e = "L'ouverture de l'url '{$this->url}' par la méthode HTTP '$mode' a échoué!";
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trigger_error($e, E_USER_WARNING);
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} else {
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// Informations sur les en-têtes et métadonnées du flux
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$this->reponse_entetes = stream_get_meta_data($flux);
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// Contenu actuel de $url
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$contenu = stream_get_contents($flux);
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fclose($flux);
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}
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$this->traiterEntete();
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}
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$this->reinitialiser();
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return $contenu;
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}
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private function traiterUrlParametres() {
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$parametres = array();
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if (count($this->parametres) > 0) {
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foreach ($this->parametres as $cle => $valeur) {
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$cle = rawurlencode($cle);
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$valeur = rawurlencode($valeur);
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$parametres[] = $cle.self::HTTP_URL_REQUETE_CLE_VALEUR_SEPARATEUR.$valeur;
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}
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$url_parametres = implode(self::HTTP_URL_REQUETE_SEPARATEUR, $parametres);
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$this->url = $this->url.'?'.$url_parametres;
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}
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}
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private function traiterEntete() {
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$infos = $this->analyserEntete();
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$this->traiterEnteteDebogage($infos);
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}
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private function analyserEntete() {
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$entetes = $this->reponse_entetes;
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$infos = array('date' => null, 'uri' => $this->url, 'debogages' => null);
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if (isset($entetes['wrapper_data'])) {
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$entetes = $entetes['wrapper_data'];
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}
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foreach ($entetes as $entete) {
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if (preg_match('/^X_REST_DEBOGAGE_MESSAGES: (.+)$/', $entete, $match)) {
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$infos['debogages'] = json_decode($match[1]);
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}
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if (preg_match('/^Date: .+ ([012][0-9]:[012345][0-9]:[012345][0-9]) .*$/', $entete, $match)) {
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$infos['date'] = $match[1];
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}
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}
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return $infos;
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}
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private function traiterEnteteDebogage($entetes_analyses) {
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if (isset($entetes['debogages'])) {
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$date = $entetes['date'];
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$uri = $entetes['uri'];
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$debogages = $entetes['debogages'];
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foreach ($debogages as $debogage) {
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$e = "DEBOGAGE : $date - $uri :\n$debogage";
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trigger_error($e, E_USER_NOTICE);
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}
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}
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}
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private function reinitialiser() {
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$this->nettoyerParametres();
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}
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}
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