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<?php
/* 
 * tutorialpro.org RESTful demo example
 * RESTful service class
 */
Class Site {

    private $sites = array(
        1 => 'TaoBao',  
        2 => 'Google',  
        3 => 'tutorialpro',              
        4 => 'Baidu',              
        5 => 'Weibo',  
        6 => 'Sina'

    );


    public function getAllSite(){
        return $this->sites;
    }

    public function getSite($id){

        $site = array($id => ($this->sites[$id]) ? $this->sites[$id] : $this->sites[1]);
        return $site;
    }    
}
?>

# Enable rewrite functionality
Options +FollowSymlinks
RewriteEngine on

# Rewrite rules
RewriteRule ^site/list/$   RestController.php?view=all [nc,qsa]
RewriteRule ^site/list/([0-9]+)/$   RestController.php?view=single&id=$1 [nc,qsa]

<?php
require_once("SiteRestHandler.php");

$view = "";
if(isset($_GET["view"]))
    $view = $_GET["view"];
/*
 * RESTful service controller
 * URL mapping
*/
switch($view){

    case "all":
        // Handle the request for all sites
        break;

    case "single":
        // Handle the request for a single site
        break;

    case "":
        // No specific view requested
        // Handle the default case
        break;
}
?>

// Handle REST URL /site/list/
$siteRestHandler = new SiteRestHandler();
$siteRestHandler->getAllSites();
break;

case "single":
    // Handle REST URL /site/show/<id>/
    $siteRestHandler = new SiteRestHandler();
    $siteRestHandler->getSite($_GET["id"]);
    break;

case "" :
    // 404 - not found;
    break;
}
?>

<?php 
/*
 * A simple RESTful web services base class
 * We can extend this class based on our requirements
*/
class SimpleRest {

    private $httpVersion = "HTTP/1.1";

    public function setHttpHeaders($contentType, $statusCode){

        $statusMessage = $this -> getHttpStatusMessage($statusCode);

        header($this->httpVersion. " ". $statusCode ." ". $statusMessage);        
        header("Content-Type:". $contentType);
    }

    public function getHttpStatusMessage($statusCode){
        $httpStatus = array(
            100 => 'Continue',  
            101 => 'Switching Protocols',  
            200 => 'OK',
            201 => 'Created',  
            202 => 'Accepted',  
            203 => 'Non-Authoritative Information',  
            204 => 'No Content',  
            205 => 'Reset Content',  
            206 => 'Partial Content',  
            300 => 'Multiple Choices',  
            301 => 'Moved Permanently',  
            302 => 'Found',  
            303 => 'See Other',  
            304 => 'Not Modified',  
            305 => 'Use Proxy',  
            306 => '(Unused)',  
            307 => 'Temporary Redirect',  
            400 => 'Bad Request',  
            401 => 'Unauthorized',  
            402 => 'Payment Required',  
            403 => 'Forbidden',  
            404 => 'Not Found',  
            405 => 'Method Not Allowed',  
            406 => 'Not Acceptable',  
            407 => 'Proxy Authentication Required',  
            408 => 'Request Timeout',  
            409 => 'Conflict',  
            410 => 'Gone',  

411 => 'Length Required',
412 => 'Precondition Failed',
413 => 'Request Entity Too Large',
414 => 'Request-URI Too Long',
415 => 'Unsupported Media Type',
416 => 'Requested Range Not Satisfiable',
417 => 'Expectation Failed',
500 => 'Internal Server Error',
501 => 'Not Implemented',
502 => 'Bad Gateway',
503 => 'Service Unavailable',
504 => 'Gateway Timeout',
505 => 'HTTP Version Not Supported');
return ($httpStatus[$statusCode]) ? $httpStatus[$statusCode] : $status[500];
}
}
?>

<?php 
require_once("SimpleRest.php");
require_once("Site.php");

class SiteRestHandler extends SimpleRest {

    function getAllSites() {    

        $site = new Site();
        $rawData = $site->getAllSite();

        if(empty($rawData)) {
            $statusCode = 404;
            $rawData = array('error' => 'No sites found!');        
        } else {
            $statusCode = 200;
        }

        $requestContentType = $_SERVER['HTTP_ACCEPT'];
        $this ->setHttpHeaders($requestContentType, $statusCode);

        if(strpos($requestContentType,'application/json') !== false){
            $response = $this->encodeJson($rawData);
            echo $response;
        } else if(strpos($requestContentType,'text/html') !== false){
            $response = $this->encodeHtml($rawData);
            echo $response;
        } else if(strpos($requestContentType,'application/xml') !== false){
            $response = $this->encodeXml($rawData);
            echo $response;
        }
    }

    public function encodeHtml($responseData) {

        $htmlResponse = "<table border='1'>";

foreach($responseData as $key=>$value) {
    $htmlResponse .= "<tr><td>". $key. "</td><td>". $value. "</td></tr>";
}
$htmlResponse .= "</table>";
return $htmlResponse;        
}

public function encodeJson($responseData) {
    $jsonResponse = json_encode($responseData);
    return $jsonResponse;        
}

public function encodeXml($responseData) {
    // Create SimpleXMLElement object
    $xml = new SimpleXMLElement('<?xml version="1.0"?><site></site>');
    foreach($responseData as $key=>$value) {
        $xml->addChild($key, $value);
    }
    return $xml->asXML();
}

public function getSite($id) {

    $site = new Site();
    $rawData = $site->getSite($id);

    if(empty($rawData)) {
        $statusCode = 404;
        $rawData = array('error' => 'No sites found!');        
    } else {
        $statusCode = 200;
    }

    $requestContentType = $_SERVER['HTTP_ACCEPT'];
    $this ->setHttpHeaders($requestContentType, $statusCode);

    if(strpos($requestContentType,'application/json') !== false){
        $response = $this->encodeJson($rawData);
        echo $response;
    } else if(strpos($requestContentType,'text/html') !== false){
        $response = $this->encodeHtml($rawData);
        echo $response;
    } else if(strpos($requestContentType,'application/xml') !== false){
        $response = $this->encodeXml($rawData);
        echo $response;
    }
}
}
?>