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<?php
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<?php
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// declare(encoding='UTF-8');
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// declare(encoding='UTF-8');
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/**
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/**
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* Classe client permettant d'interroger des services web REST.
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* Classe client permettant d'interroger des services web REST.
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*
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*
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* @category	php 5.2
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* @category		php 5.2
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* @package 	Framework
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* @package		Framework
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* @author		Jean-Pascal MILCENT <jpm@tela-botanica.org>
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* @author		Jean-Pascal MILCENT <jpm@tela-botanica.org>
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* @copyright	Copyright (c) 2010, Tela Botanica (accueil@tela-botanica.org)
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* @copyright	Copyright (c) 2010, Tela Botanica (accueil@tela-botanica.org)
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* @license		http://www.cecill.info/licences/Licence_CeCILL_V2-fr.txt Licence CECILL
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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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* @license		http://www.gnu.org/licenses/gpl.html Licence GNU-GPL
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* @version		$Id: RestClient.php 353 2011-08-01 16:02:32Z jpm $
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* @since		0.2
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*/
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*/
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class RestClient {
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class RestClient {
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	const HTTP_URL_REQUETE_SEPARATEUR = '&';
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	const HTTP_URL_REQUETE_SEPARATEUR = '&';
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	const HTTP_URL_REQUETE_CLE_VALEUR_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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	private $http_methodes = array('GET', 'POST', 'PUT', 'DELETE', 'HEAD', 'OPTIONS', 'CONNECT', 'TRACE');
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	protected $parametres = null;
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	protected $parametres = null;
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	private $url = null;
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	private $url = null;
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	private $reponse_entetes = null;
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	private $reponse_entetes = null;
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21
 
22
	//+----------------------------------------------------------------------------------------------------------------+
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	//+----------------------------------------------------------------------------------------------------------------+
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	// ACCESSEURS
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	// ACCESSEURS
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24
 
25
	public function getReponseEntetes() {
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	public function getReponseEntetes() {
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		return $this->reponse_entetes;
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		return $this->reponse_entetes;
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	}
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	}
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28
 
29
	public function getParametre($cle) {
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	public function getParametre($cle) {
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		$valeur = (isset($this->parametres[$cle])) ? $this->parametres[$cle] : null;
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		$valeur = (isset($this->parametres[$cle])) ? $this->parametres[$cle] : null;
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		return $valeur;
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		return $valeur;
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	}
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	}
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33
 
34
	public function ajouterParametre($cle, $valeur) {
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	public function ajouterParametre($cle, $valeur) {
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		$this->parametres[$cle] = $valeur;
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		$this->parametres[$cle] = $valeur;
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	}
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	}
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37
 
38
	public function supprimerParametre($cle) {
38
	public function supprimerParametre($cle) {
39
		unset($this->parametres[$cle]);
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		unset($this->parametres[$cle]);
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	}
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	}
41
	
41
 
42
	public function nettoyerParametres() {
42
	public function nettoyerParametres() {
43
		$this->parametres = null;
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		$this->parametres = null;
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	}
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	}
45
	
45
 
46
	//+----------------------------------------------------------------------------------------------------------------+
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	//+----------------------------------------------------------------------------------------------------------------+
47
	// MÉTHODES
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	// MÉTHODES
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48
 
49
	public function consulter($url) {
49
	public function consulter($url) {
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		$retour = $this->envoyerRequete($url, 'GET');
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		$retour = $this->envoyerRequete($url, 'GET');
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		return $retour;
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		return $retour;
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	}
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	}
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53
 
54
	public function ajouter($url, Array $donnees) {
54
	public function ajouter($url, Array $donnees) {
55
		$retour = $this->envoyerRequete($url, 'PUT', $donnees);
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		$retour = $this->envoyerRequete($url, 'PUT', $donnees);
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		return $retour;
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		return $retour;
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	}
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	}
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58
 
59
	public function modifier($url, Array $donnees) {
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	public function modifier($url, Array $donnees) {
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		$retour = $this->envoyerRequete($url, 'POST', $donnees);
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		$retour = $this->envoyerRequete($url, 'POST', $donnees);
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		return $retour;
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		return $retour;
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	}
62
	}
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63
 
64
	public function supprimer($url) {
64
	public function supprimer($url) {
65
		$retour = $this->envoyerRequete($url, 'DELETE');
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		$retour = $this->envoyerRequete($url, 'DELETE');
66
		return $retour;
66
		return $retour;
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	}
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	}
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68
 
69
	public function envoyerRequete($url, $mode, Array $donnees = array()) {
69
	public function envoyerRequete($url, $mode, Array $donnees = array()) {
70
		$this->url = $url;
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		$this->url = $url;
71
		$contenu = false;
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		$contenu = false;
72
		if (! in_array($mode, $this->http_methodes)) {
72
		if (! in_array($mode, $this->http_methodes)) {
73
			$e = "Le mode de requête '$mode' n'est pas accepté!";
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			$e = "Le mode de requête '$mode' n'est pas accepté!";
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			trigger_error($e, E_USER_WARNING);
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			trigger_error($e, E_USER_WARNING);
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		} else {
75
		} else {
76
			if ($mode == 'GET') {
76
			if ($mode == 'GET') {
77
				$this->traiterUrlParametres();
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				$this->traiterUrlParametres();
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			}
78
			}
-
 
79
			$content = http_build_query($donnees, null, self::HTTP_URL_REQUETE_SEPARATEUR);
79
			$contexte = stream_context_create(array(
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			$contexte = stream_context_create(array(
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				'http' => array(
81
				'http' => array(
81
      				'method' => $mode,
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      				'method' => $mode,
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					'header' => "Content-type: application/x-www-form-urlencoded\r\n",
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					'header' => "Content-type: application/x-www-form-urlencoded\r\n",
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      				'content' => http_build_query($donnees, null, self::HTTP_URL_REQUETE_SEPARATEUR))));
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      				'content' => $content)));
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			$flux = @fopen($this->url, 'r', false, $contexte);
85
			$flux = @fopen($this->url, 'r', false, $contexte);
85
			if (!$flux) {
86
			if (!$flux) {
86
				$this->reponse_entetes = $http_response_header;
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				$this->reponse_entetes = $http_response_header;
-
 
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				$entetesFmt = print_r($this->analyserEntete(), true);
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				$e = "L'ouverture de l'url '{$this->url}' par la méthode HTTP '$mode' a échoué!";
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				$e = "L'ouverture de l'url '{$this->url}' par la méthode HTTP '$mode' a échoué!\n".
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90
					"Le contenu des métadonnées était : $entetesFmt \n".
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91
					"Les paramètres de la requête HTTP étaient : $content \n".
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92
					"Le contenu était : ".stream_get_contents($flux);
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				trigger_error($e, E_USER_WARNING);
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				trigger_error($e, E_USER_WARNING);
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			} else {
94
			} else {
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				// Informations sur les en-têtes et métadonnées du flux
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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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				$this->reponse_entetes = stream_get_meta_data($flux);
92
				
97
 
93
				// Contenu actuel de $url
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				// Contenu actuel de $url
94
				$contenu = stream_get_contents($flux);
99
				$contenu = stream_get_contents($flux);
95
				
100
 
96
				fclose($flux);
101
				fclose($flux);
97
			}
102
			}
98
			$this->traiterEntete();
103
			$this->traiterEntete();
99
		}
104
		}
100
		$this->reinitialiser();
105
		$this->reinitialiser();
101
		return $contenu;
106
		return $contenu;
102
	}
107
	}
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108
 
104
	private function traiterUrlParametres() {
109
	private function traiterUrlParametres() {
105
		$parametres = array();
110
		$parametres = array();
106
		if (count($this->parametres) > 0) {
111
		if (count($this->parametres) > 0) {
107
			foreach ($this->parametres as $cle => $valeur) {
112
			foreach ($this->parametres as $cle => $valeur) {
108
				$cle = rawurlencode($cle);
113
				$cle = rawurlencode($cle);
Line 111... Line 116...
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			}
116
			}
112
			$url_parametres = implode(self::HTTP_URL_REQUETE_SEPARATEUR, $parametres);
117
			$url_parametres = implode(self::HTTP_URL_REQUETE_SEPARATEUR, $parametres);
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			$this->url = $this->url.'?'.$url_parametres;
118
			$this->url = $this->url.'?'.$url_parametres;
114
		}
119
		}
115
	}
120
	}
116
	
121
 
117
	private function traiterEntete() {
122
	private function traiterEntete() {
118
		$infos = $this->analyserEntete();
123
		$infos = $this->analyserEntete();
119
		$this->traiterEnteteDebogage($infos);
124
		$this->traiterEnteteDebogage($infos);
120
	}
125
	}
121
	
126
 
122
	private function analyserEntete() {
127
	private function analyserEntete() {
123
		$entetes = $this->reponse_entetes; 
128
		$entetes = $this->reponse_entetes;
124
		$infos = array('date' => null, 'uri' => $this->url, 'debogages' => null);
129
		$infos = array('date' => null, 'uri' => $this->url, 'debogages' => null);
125
		
130
 
126
		if (isset($entetes['wrapper_data'])) {
131
		if (isset($entetes['wrapper_data'])) {
127
			$entetes = $entetes['wrapper_data'];
132
			$entetes = $entetes['wrapper_data'];
128
		}
133
		}
129
		foreach ($entetes as $entete) {
134
		foreach ($entetes as $entete) {
130
			if (preg_match('/^X_REST_DEBOGAGE_MESSAGES: (.+)$/', $entete, $match)) {
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			if (preg_match('/^X_REST_DEBOGAGE_MESSAGES: (.+)$/', $entete, $match)) {
Line 134... Line 139...
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				$infos['date'] = $match[1];
139
				$infos['date'] = $match[1];
135
			}
140
			}
136
		}
141
		}
137
		return $infos;
142
		return $infos;
138
	}
143
	}
139
	
144
 
140
	private function traiterEnteteDebogage($entetes_analyses) {
145
	private function traiterEnteteDebogage($entetes_analyses) {
141
		if (isset($entetes['debogages'])) {
146
		if (isset($entetes['debogages'])) {
142
			$date = $entetes['date'];
147
			$date = $entetes['date'];
143
			$uri = $entetes['uri'];
148
			$uri = $entetes['uri'];
144
			$debogages = $entetes['debogages'];
149
			$debogages = $entetes['debogages'];
Line 146... Line 151...
146
				$e = "DEBOGAGE : $date - $uri :\n$debogage";
151
				$e = "DEBOGAGE : $date - $uri :\n$debogage";
147
				trigger_error($e, E_USER_NOTICE);
152
				trigger_error($e, E_USER_NOTICE);
148
			}
153
			}
149
		}
154
		}
150
	}
155
	}
151
	
156
 
152
	private function reinitialiser() {
157
	private function reinitialiser() {
153
		$this->nettoyerParametres();
158
		$this->nettoyerParametres();
154
	}
159
	}
155
}
160
}
156
161