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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(); |
} |
} |