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<?php
// declare(encoding='UTF-8');
/**
* Classe modèle spécifique à l'application, donc d'accés au données, elle ne devrait pas être appelée de l'extérieur.
* Elle est abstraite donc doit obligatoirement être étendue.
*
* @category Php5
* @package Referentiel
* @author Jean-Pascal MILCENT <jpm@tela-botanica.org>
* @copyright 2010 Tela-Botanica
* @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 SVN: $Id$
*/
abstract class Dao {
const HTTP_REQUETE_SEPARATEUR = '&';
protected $distinction = '0';
protected $limite_debut = null;
protected $limite_nbre = null;
protected $url_jrest = null;
public function __construct() {
$this->url_jrest = Config::get('url_jrest');
}
//+----------------------------------------------------------------------------------------------------------------+
// ACCESSEURS
public function avoirLimitation() {
$limitation = false;
if (!is_null($this->limite_debut) && !is_null($this->limite_nbre)) {
$limitation = true;
}
return $limitation;
}
public function setDistinction($distinct) {
$this->distinction = $distinct;
}
public function getDistinction() {
return $this->distinction;
}
public function setLimitation($limite_debut, $limite_nbre) {
$this->limite_debut = $limite_debut;
$this->limite_nbre = $limite_nbre;
}
public function getLimiteDebut() {
return $this->limite_debut;
}
public function getLimiteNbre() {
return $this->limite_nbre;
}
//+----------------------------------------------------------------------------------------------------------------+
// MÉTHODES
protected function envoyerRequeteConsultation($url) {
$url = $this->traiterUrlParametres($url);
$retour = $this->envoyerRequete($url, 'GET');
return $retour;
}
protected function envoyerRequeteAjout($url, Array $donnees) {
$retour = $this->envoyerRequete($url, 'PUT', $donnees);
return $retour;
}
protected function envoyerRequeteModif($url, Array $donnees) {
$retour = $this->envoyerRequete($url, 'POST', $donnees);
return $retour;
}
protected function envoyerRequeteSuppression($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_REQUETE_SEPARATEUR))));
$flux = @fopen($url, 'r', false, $contexte);
if (!$flux) {
$this->traiterEntete($http_response_header, $url);
$e = "L'ouverture de l'url '$url' 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);
}
}
return $contenu;
}
private function traiterUrlParametres($url) {
$parametres = array();
if (! is_null($this->getLimiteDebut())) {
$parametres[] = 'start='.$this->getLimiteDebut();
}
if (! is_null($this->getLimiteNbre())) {
$parametres[] = 'limit='.$this->getLimiteNbre();
}
if ($this->getDistinction() != 0) {
$parametres[] = 'distinct='.$this->getDistinction();
}
if (count($parametres) > 0) {
$url_parametres = implode('&', $parametres);
$url = $url.'?'.$url_parametres;
}
return $url;
}
private function traiterEntete($entetes, $uri) {
$infos = $this->analyserEntete($entetes, $uri);
$this->traiterEnteteDebug($infos);
$this->traiterEnteteMessage($infos);
}
private function analyserEntete($entetes, $uri) {
$infos = array('date' => null, 'uri' => $uri, 'debugs' => null, 'messages' => null);
if (isset($entetes['wrapper_data'])) {
$entetes = $entetes['wrapper_data'];
}
foreach ($entetes as $entete) {
if (preg_match('/^X-DebugJrest-Data: (.+)$/', $entete, $match)) {
$infos['debugs'] = json_decode($match[1]);
}
if (preg_match('/^X-MessageJrest-Data: (.+)$/', $entete, $match)) {
$infos['messages'] = json_decode($match[1]);
}
if (preg_match('/^Date: .+ ([012][0-9]:[012345][0-9]:[012345][0-9]) .*$/', $entete, $match)) {
$infos['date'] = $match[1];
}
}
return $infos;
}
private function traiterEnteteDebug($entetes) {
if (isset($entetes['debugs'])) {
$date = $entetes['date'];
$uri = $entetes['uri'];
$debugs = $entetes['debugs'];
foreach ($debugs as $debug) {
Debug::printr("DEBUG : $date - $uri :\n$debug");
}
}
}
private function traiterEnteteMessage($entetes) {
if (isset($entetes['messages'])) {
$date = $entetes['date'];
$uri = $entetes['uri'];
$messages = $entetes['messages'];
foreach ($messages as $message) {
Debug::printr("MESSAGE : $date - $uri :\n$message");
}
}
}
}