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<?php
/**
* ixr (ix rolling) cache module
* @author eyesonlyz@nate.com
* @require php 5.x http://php.net
* @require curl http://php.net/curl
* @version 1.2
*/
// 트위터 설정
define('OAUTH_CONSUMER_KEY', get_cfg_var('oauth_consumer_key')); ///< 수정하세요
define('OAUTH_CONSUMER_SECRET', get_cfg_var('oauth_consumer_secret')); ///< 수정하세요
define('OAUTH_ACCESS_TOKEN', get_cfg_var('oauth_access_token')); ///< 수정하세요
define('OAUTH_ACCESS_TOKEN_SECRET', get_cfg_var('oauth_access_token_secret')); ///< 수정하세요
// 페이스북 설정
define('FACEBOOK_APP_ID',get_cfg_var('facebook_app_id'));
define('FACEBOOK_APP_SECRET',get_cfg_var('facebook_app_secret'));
define('IXR_CACHE_DIR', dirname(__FILE__) . '/cache'); //< 원하시는 캐쉬디렉토리 경로로 변경하실 수 있습니다
header("Content-Type: application/json; charset=utf-8");
define('IXR_MIN_SYNC_SECOND', 60);
if (!is_dir(IXR_CACHE_DIR)) {
if (is_writable(dirname(IXR_CACHE_DIR))) {
mkdir(IXR_CACHE_DIR);
} else {
header("HTTP/1.1 500 Internal Server Error");
echo '{}';
return;
}
}
if (!is_writable(IXR_CACHE_DIR)) {
header("HTTP/1.1 500 Internal Server Error");
echo '{}';
return;
}
if (!extension_loaded('curl') || !function_exists('json_encode')) {
header("HTTP/1.1 501 Not Implemented");
echo '{}';
return;
}
if (!empty($_GET['provider']) && is_array($_GET['provider'])) {
$cache = new IXR_Cache($_GET['provider']);
$cache->render();
}
class IXR_Cache
{
protected $provider;
protected $key;
/**
* 선언된 url 요청만 캐쉬할 수 있습니다.
* @var array
*/
protected $allow_url = array(
'twitter' => array(
'https://api.twitter.com/1.1/statuses/user_timeline.json?',
'https://api.twitter.com/1.1/search/tweets.json?'
),
'youtube' => array(
'https://gdata.youtube.com/',
'http://gdata.youtube.com/'
),
'facebook' => array(
'https://graph.facebook.com/search?',
'http://graph.facebook.com/search?',
'https://www.facebook.com/feeds/page.php?',
'http://www.facebook.com/feeds/page.php?',
'http://query.yahooapis.com/v1/public/yql?'
),
'yozm' => array('https://apis.daum.net/yozm/v1_0/search/timeline.json?'),
'me2day' => array(
'http://me2day.net/search.json?',
'http://me2day.net/api/get_posts/'
),
'feed' => array('http://query.yahooapis.com/v1/public/yql?')
);
public function __construct($provider)
{
$this->provider = $provider;
if (empty($this->provider['provider_name']) && !empty($this->provider['service'])) {
$this->provider['provider_name'] = $this->provider['service'];
}
if (empty($this->provider['sync_second']) || $this->provider['sync_second'] < 300) {
$this->provider['sync_second'] = 60 * 5;
}
if (empty($this->provider['key'])) {
exit;
}
$this->key = md5($this->provider['provider_name'] . $this->provider['key']);
$this->filename = IXR_CACHE_DIR . '/' . $this->key . '.json';
$this->tmp_file = $this->filename . '.tmp';
if ($this->provider['ajax']['dataType'] === 'jsonp') {
$this->provider['url'] .= '&callback=jQuery' . $this->key . time();
}
}
function get_data($url)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
$t = @curl_exec($ch);
if (curl_getinfo($ch, CURLINFO_HTTP_CODE) !== 200) {
$t = false;
}
if (curl_errno($ch) !== 0) {
$t = false;
}
curl_close($ch);
return $t;
}
function _default_provider($provider)
{
if ($provider['provider_name'] === 'twitter') {
$urls = parse_url($provider['url']);
$method = 'GET';
$query = array();
parse_str($urls['query'], $query);
if (isset($query['callback'])) {
unset($query['callback']);
}
$oauth = array(
'oauth_consumer_key' => OAUTH_CONSUMER_KEY,
'oauth_token' => OAUTH_ACCESS_TOKEN,
'oauth_nonce' => md5(microtime() . rand()),
'oauth_timestamp' => time(),
'oauth_signature_method' => 'HMAC-SHA1',
'oauth_version' => '1.0'
);
$oauth = array_map("rawurlencode", $oauth);
$query = array_map("rawurlencode", $query);
$arr = array_merge($oauth, $query);
asort($arr);
ksort($arr);
$querystring = http_build_query($arr, '', '&');
$url = $urls['scheme'] . '://' . $urls['host'] . $urls['path'];
$base_string = $method . "&" . rawurlencode($url) . "&" . rawurlencode($querystring);
$key = rawurlencode(OAUTH_CONSUMER_SECRET) . "&" . rawurlencode(OAUTH_ACCESS_TOKEN_SECRET);
$signature = rawurlencode(base64_encode(hash_hmac('sha1', $base_string, $key, true)));
$url .= "?" . http_build_query($query);
$oauth['oauth_signature'] = $signature;
ksort($oauth);
foreach ($oauth as $k => $v) {
$oauth[$k] = '"' . $v . '"';
}
$headers = array();
$headers[] = "Authorization: OAuth " . urldecode(http_build_query($oauth, '', ', '));
$options = array(
CURLOPT_TIMEOUT => 3,
CURLOPT_USERAGENT => "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)",
CURLOPT_HEADER => false,
CURLOPT_URL => $url,
CURLOPT_RETURNTRANSFER => true
);
if ($urls['scheme'] === 'https') {
$options[CURLOPT_SSL_VERIFYPEER] = 0;
$options[CURLOPT_SSL_VERIFYHOST] = 0;
}
$options[CURLOPT_HTTPHEADER] = $headers;
$ch = curl_init();
curl_setopt_array($ch, $options);
$data = curl_exec($ch);
if (curl_getinfo($ch, CURLINFO_HTTP_CODE) !== 200) {
$data = false;
}
curl_close($ch);
} else if($provider['provider_name'] === 'facebook'){
$_url = "https://graph.facebook.com/oauth/access_token?client_id=".FACEBOOK_APP_ID."&client_secret=".FACEBOOK_APP_SECRET."&grant_type=client_credentials";
$_token = $this->get_data($_url);
$_vars = array();
parse_str($_token,$_vars);
if(!empty($_vars['access_token'])){
$data = $this->get_data($provider['url'].'&access_token='.$_vars['access_token']);
}else{
$data = '{}';
}
} else {
$data = $this->get_data($provider['url']);
}
if ($data) {
if ($data[0] !== '[' && $data[0] !== '{') {
$spos = strpos($data, '(') + 1;
$epos = strrpos($data, ')') - $spos;
$json_data = substr($data, $spos, $epos);
} else {
$json_data = $data;
}
$json = json_decode($json_data);
if (!empty($json)) {
$json = json_encode($json);
@file_put_contents($this->filename, $json);
return $json;
}
}
return '{}';
}
function provider_twitter($provider)
{
return $this->_default_provider($provider);
}
function provider_facebook($provider)
{
return $this->_default_provider($provider);
}
function provider_yozm($provider)
{
return $this->_default_provider($provider);
}
function provider_youtube($provider)
{
return $this->_default_provider($provider);
}
function provider_me2day($provider)
{
return $this->_default_provider($provider);
}
function provider_feed($provider)
{
return $this->_default_provider($provider);
}
function render()
{
if (is_array($this->provider)) {
if (!empty($this->provider['provider_name'])) {
$method = 'provider_' . $this->provider['provider_name'];
if (method_exists($this, $method)) {
if (!empty($this->provider['url']) && !empty($this->allow_url[$this->provider['provider_name']])) {
$valid = false;
foreach ($this->allow_url[$this->provider['provider_name']] as $url) {
if (strpos($this->provider['url'], $url) === 0) {
$valid = true;
break;
}
}
if ($valid) {
if (is_file($this->filename)) {
$sync_second = (int)$this->provider['sync_second'];
if ($sync_second < IXR_MIN_SYNC_SECOND) {
$sync_second = IXR_MIN_SYNC_SECOND;
}
$ftime = filemtime($this->filename);
if ($ftime + $sync_second > time() || file_exists($this->tmp_file)) {
header('X-IXR-CACHE: ' . ($ftime + $sync_second - time()) . ' SEC');
readfile($this->filename);
return;
}
}
file_put_contents($this->tmp_file, 'tmp');
echo $this->$method($this->provider);
unlink($this->tmp_file);
}
}
}
}
}
}
}