<?php
session_start();
if(!isset($_SESSION['REQUEST_TOKENS'])) {
$_SESSION['REQUEST_TOKENS'] = array();
}

define('CALL_BACK_URL', 'http://localhost:3000/');

class logme
{
public static function say($msg)
{
openlog("OAUTH-P", 0, LOG_LOCAL0);
syslog(LOG_DEBUG, $msg);
}
}

class consumerDS
{
private static $consumers = array(
'viraj' => array('secret'=>'asjh^&556GHJG', 'status'=>0)
);

public static function getConsumer($consumerKey) {
logme::say('looking up.. ' . $consumerKey);
if(array_key_exists($consumerKey, self::$consumers)) {
return (object)self::$consumers[$consumerKey];
}
return null;
}
}
//echo '<pre>';
//echo $_SERVER['HTTP_HOST'] . ' ' . $_SERVER['REQUEST_URI'] . "\n";
//print_r($_SERVER);
//echo '</pre>';

$__m = $__o = $__a = null;
extract(array_combine(array('__m','__o','__a'), array_pad(explode(DIRECTORY_SEPARATOR, trim($_SERVER['REQUEST_URI'],DIRECTORY_SEPARATOR), 3),3,null)),EXTR_IF_EXISTS);
//echo 'm->' . $__m . '  o->' . $__o . '  a->' . $__a . "\n";

//echo serialize($_GET);
//echo serialize($_POST);

class oAuthServer {
public function __construct()
{
$this->op = new OAuthProvider();
$this->op->consumerHandler(array($this, 'lookupConsumer'));
  $this->op->timestampNonceHandler(array($this, 'timestampNonceChecker'));
    $this->op->tokenHandler(array($this, 'tokenHandler'));

    logme::say(__METHOD__);

$this->op->setRequestTokenPath('/request_token');
$this->op->checkOAuthRequest();
logme::say('---> ' . $this->op->consumer_secret);
}

public function lookupConsumer($op)
{
logme::say(__METHOD__);

$foundConsumer = consumerDS::getConsumer($op->consumer_key);
if(is_null($foundConsumer)) {
logme::say('unknown ' . $op->consumer_key);
return OAUTH_CONSUMER_KEY_UNKNOWN;
}
else if ($foundConsumer->status != 0){
logme::say('refused ' . $op->consumer_key);
return OAUTH_CONSUMER_KEY_REFUSED;
}

$op->consumer_secret = $foundConsumer->secret;
logme::say('found and ok ' . $op->consumer_key . ' scrt:' . $foundConsumer->secret);
return OAUTH_OK;
}

public function timestampNonceChecker($op)
{
logme::say(__METHOD__);
return OAUTH_OK;
}

public function tokenHandler($op)
{
logme::say(__METHOD__);
return OAUTH_OK;
}

public function assignRequestToken($consumerKey)
{
logme::say('a');
$request_token = bin2hex($this->op->generateToken(4));
    $request_token_secret = bin2hex($this->op->generateToken(12));

    logme::say('b');
array_push($_SESSION['REQUEST_TOKENS'], array($this->op->consumer_key => array(
'consumer_key' => $this->op->consumer_key,
'request_token' => $request_token,
'request_token_secret' => $request_token_secret,
'callback' => CALL_BACK_URL,
)));

logme::say('c');

return true;
}
}



/*echo "\n";
echo "\n" . 'request token end point';
echo "\n" . '-----------------------' . "\n";*/

if($__m == 'request_token') {
//echo "\n" . 'inside request token end point' . "\n";
try {
$provider = new oAuthServer();
logme::say('a0');
$provider->assignRequestToken();
logme::say('a1');
logme::say(serialize($_SESSION));
logme::say('a2');
   }
   catch (OAuthException $E) {
echo OAuthProvider::reportProblem($E);
$oauth_error = true;
   }
}

//echo '</pre>';
?>