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| <?php |
| // declare(encoding='UTF-8'); |
| /** |
| * Classe client permettant d'interroger des services web REST. |
| * |
| * @category php 5.2 |
| * @package Framework |
| * @author Jean-Pascal MILCENT <jpm@tela-botanica.org> |
| * @copyright Copyright (c) 2010, 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 Client { |
| const HTTP_URL_REQUETE_SEPARATEUR = '&'; |
| const HTTP_URL_REQUETE_CLE_VALEUR_SEPARATEUR = '='; |
| protected $parametres = null; |
| |
| //+----------------------------------------------------------------------------------------------------------------+ |
| // ACCESSEURS |
| |
| public function getParametre($cle) { |
| $valeur = (isset($this->parametres[$cle])) ? $this->parametres[$cle] : null; |
| return $valeur; |
| } |
| |
| public function ajouterParametre($cle, $valeur) { |
| $this->parametres[$cle] = $valeur; |
| } |
| |
| public function supprimerParametre($cle) { |
| unset($this->parametres[$cle]); |
| } |
| |
| public function nettoyerParametres() { |
| $this->parametres = null; |
| } |
| |
| //+----------------------------------------------------------------------------------------------------------------+ |
| // MÉTHODES |
| |
| public function consulter($url) { |
| $url = $this->traiterUrlParametres($url); |
| $retour = $this->envoyerRequete($url, 'GET'); |
| return $retour; |
| } |
| |
| public function ajouter($url, Array $donnees) { |
| $retour = $this->envoyerRequete($url, 'PUT', $donnees); |
| return $retour; |
| } |
| |
| public function modifier($url, Array $donnees) { |
| $retour = $this->envoyerRequete($url, 'POST', $donnees); |
| return $retour; |
| } |
| |
| public function supprimer($url) { |
| $retour = $this->envoyerRequete($url, 'DELETE'); |
| return $retour; |
| } |
| |
| private function envoyerRequete($url, $mode, Array $donnees = array()) { |
| $contenu = false; |
| if ($mode != 'GET' && $mode != 'PUT' && $mode != 'POST' && $mode != 'DELETE') { |
| $e = "Le mode de requête '$mode' n'est pas accepté!"; |
| trigger_error($e, E_USER_WARNING); |
| } else { |
| $contexte = stream_context_create(array( |
| 'http' => array( |
| 'method' => $mode, |
| 'header' => "Content-type: application/x-www-form-urlencoded\r\n", |
| 'content' => http_build_query($donnees, null, self::HTTP_URL_REQUETE_SEPARATEUR)))); |
| $flux = @fopen($url, 'r', false, $contexte); |
| if (!$flux) { |
| $this->traiterEntete($http_response_header, $url); |
| $e = "L'ouverture de l'url '$url' par la méthode HTTP '$mode' a échoué!"; |
| trigger_error($e, E_USER_WARNING); |
| } else { |
| // Informations sur les en-têtes et métadonnées du flux |
| $entetes = stream_get_meta_data($flux); |
| $this->traiterEntete($entetes, $url); |
| |
| // Contenu actuel de $url |
| $contenu = stream_get_contents($flux); |
| |
| fclose($flux); |
| } |
| } |
| $this->reinitialiser(); |
| return $contenu; |
| } |
| |
| private function traiterUrlParametres($url) { |
| $parametres = array(); |
| if (count($this->parametres) > 0) { |
| foreach ($this->parametres as $cle => $valeur) { |
| $parametres[] = $cle.self::HTTP_URL_REQUETE_CLE_VALEUR_SEPARATEUR.$valeur; |
| } |
| $url_parametres = implode(self::HTTP_URL_REQUETE_SEPARATEUR, $parametres); |
| $url = $url.'?'.$url_parametres; |
| } |
| return $url; |
| } |
| |
| private function traiterEntete($entetes, $uri) { |
| $infos = $this->analyserEntete($entetes, $uri); |
| $this->traiterEnteteDebogage($infos); |
| } |
| |
| private function analyserEntete($entetes, $uri) { |
| $infos = array('date' => null, 'uri' => $uri, 'debogages' => null); |
| |
| if (isset($entetes['wrapper_data'])) { |
| $entetes = $entetes['wrapper_data']; |
| } |
| foreach ($entetes as $entete) { |
| if (preg_match('/^X_REST_DEBOGAGE_MESSAGES: (.+)$/', $entete, $match)) { |
| $infos['debogages'] = json_decode($match[1]); |
| } |
| if (preg_match('/^Date: .+ ([012][0-9]:[012345][0-9]:[012345][0-9]) .*$/', $entete, $match)) { |
| $infos['date'] = $match[1]; |
| } |
| } |
| return $infos; |
| } |
| |
| private function traiterEnteteDebogage($entetes) { |
| if (isset($entetes['debogages'])) { |
| $date = $entetes['date']; |
| $uri = $entetes['uri']; |
| $debogages = $entetes['debogages']; |
| foreach ($debogages as $debogage) { |
| $e = "DEBOGAGE : $date - $uri :\n$debogage"; |
| trigger_error($e, E_USER_NOTICE); |
| } |
| } |
| } |
| |
| private function reinitialiser() { |
| $this->nettoyerParametres(); |
| } |
| } |