<?php

function buildBaseString($baseURI, $method, $params)
{
	$r = array();
	ksort($params);
	foreach($params as $key=>$value){
		$r[] = "$key=" . rawurlencode($value);
	}
	return $method."&" . rawurlencode($baseURI) . '&' . rawurlencode(implode('&', $r));
}

function buildAuthorizationHeader($oauth)
{
	$r = 'Authorization: OAuth ';
	$values = array();
	foreach($oauth as $key=>$value)
		$values[] = "$key=\"" . rawurlencode($value) . "\"";
	$r .= implode(', ', $values);
	return $r;
}

// function docurloauth($url, $oauth_access_token, $oauth_access_token_secret)
// {
// 	$consumer_key = CONSUMER_KEY;
// 	$consumer_secret = CONSUMER_SECRET;

// 	$oauth = array( 'oauth_consumer_key' => $consumer_key,
// 			'oauth_nonce' => time(),
// 			'oauth_signature_method' => 'HMAC-SHA1',
// 			'oauth_token' => $oauth_access_token,
// 			'oauth_timestamp' => time(),
// 			'oauth_version' => '1.0');

// 	$base_info = buildBaseString($url, 'POST', $oauth);
// 	$composite_key = rawurlencode($consumer_secret) . '&' . rawurlencode($oauth_access_token_secret);
// 	$oauth_signature = base64_encode(hash_hmac('sha1', $base_info, $composite_key, true));
// 	$oauth['oauth_signature'] = $oauth_signature;

// 	$header = array(buildAuthorizationHeader($oauth), 'Expect:');
// 	$options = array( CURLOPT_HTTPHEADER => $header,
// 			CURLOPT_HEADER => false,
// 			CURLOPT_URL => $url,
// 			CURLOPT_RETURNTRANSFER => true,
// 			CURLOPT_SSL_VERIFYPEER => false);

// 	return $options;
// }