/** * * @see https://dev.twitter.com/docs/api/1.1/get/application/rate_limit_status */ public function getStatus() { // Return the cached response if available. $_sCacheID = FetchTweets_Commons::TransientPrefix . '_' . md5(serialize(array($this->sConsumerKey, $this->sConsumerSecret, $this->sAccessToken, $this->sAccessSecret))); $_vData = FetchTweets_WPUtilities::getTransient($_sCacheID); if (false !== $_vData) { return $_vData; } // Perform the requests. $_oConnect = new FetchTweets_TwitterOAuth($this->sConsumerKey, $this->sConsumerSecret, $this->sAccessToken, $this->sAccessSecret); $_aUser = $_oConnect->get('account/verify_credentials'); // If the user id could not be retrieved, it means it failed. if (!isset($_aUser['id']) || !$_aUser['id']) { return array(); } // Otherwise, it is okay. Retrieve the current status. $_aStatusKeys = apply_filters('fetch_tweets_filter_request_rate_limit_status_keys', array('statuses', 'search', 'lists')); // keys can be added such as 'help', 'users' etc $_aStatus = $_oConnect->get('https://api.twitter.com/1.1/application/rate_limit_status.json?resources=' . implode(',', $_aStatusKeys)); // Set the cache. $_aData = is_array($_aStatus) ? $_aUser + $_aStatus : $_aUser; FetchTweets_WPUtilities::setTransient($_sCacheID, $_aData, 60); // stores the cache only for 60 seconds. return $_aData; }
/** * Receives the callback from Twitter authentication and saves the access token. * * @remark This method is triggered when the user get redirected back to the admin page * @since 1.3.0 * @since 2.4.5 Moved from the admin page class. */ private function _handleAuthenticationCallback() { /* If the oauth_token is old redirect to the authentication page. */ $_aTemporaryTokens = FetchTweets_WPUtilities::getTransient(FetchTweets_Commons::TransientPrefix . '_oauth'); if (false === $_aTemporaryTokens || !isset($_aTemporaryTokens['oauth_token'], $_aTemporaryTokens['oauth_token_secret'])) { exit(wp_redirect(add_query_arg(array('post_type' => 'fetch_tweets', 'page' => 'fetch_tweets_settings', 'tab' => 'authentication'), admin_url($GLOBALS['pagenow'])))); } $_oOption =& $GLOBALS['oFetchTweets_Option']; /* Create TwitterOAuth object with app key/secret and token key/secret from default phase */ $_oConnect = new FetchTweets_TwitterOAuth(FetchTweets_Commons::ConsumerKey, FetchTweets_Commons::ConsumerSecret, $_aTemporaryTokens['oauth_token'], $_aTemporaryTokens['oauth_token_secret']); /* Request access tokens from twitter */ $_aAccessTokens = $_oConnect->getAccessToken($_REQUEST['oauth_verifier']); /* $_aAccessTokens Looks like this 'oauth_token' => string 'asxxx-sxxx...' (length=50) 'oauth_token_secret' => string 'xxx....' (length=41) 'user_id' => string '132.....' (length=10) 'screen_name' => string 'my_screen_name' (length=9) */ /* Save the access tokens. Normally these would be saved in a database for future use. */ $_oOption->saveCredentials(array('access_token' => $_aAccessTokens['oauth_token'], 'access_secret' => $_aAccessTokens['oauth_token_secret'], 'screen_name' => $_aAccessTokens['screen_name'], 'user_id' => $_aAccessTokens['user_id'], 'is_connected' => true, 'connect_method' => 'oauth')); /* If HTTP response is 200 continue otherwise send to connect page to retry */ if (200 == $_oConnect->http_code) { /* The user has been verified */ $_sRediretURL = add_query_arg(array('post_type' => 'fetch_tweets', 'page' => 'fetch_tweets_settings', 'tab' => 'twitter_connect'), admin_url($GLOBALS['pagenow'])); } else { /* Save HTTP status for error dialogue on authentication page.*/ // Let the user set authentication keys manually $_sRediretURL = add_query_arg(array('post_type' => 'fetch_tweets', 'page' => 'fetch_tweets_settings', 'tab' => 'authentication'), admin_url($GLOBALS['pagenow'])); } exit(wp_redirect($_sRediretURL)); }
public function fetchFeed($vURLs, $numItems = 0, $fCacheRenew = false) { $arrURLs = is_array($vURLs) ? $vURLs : (array) $vURLs; $strURLID = md5(serialize($arrURLs)); if (!isset($this->arrFeedItems[$strURLID]) && $fCacheRenew == false) { $this->arrFeedItems[$strURLID] = FetchTweets_WPUtilities::getTransient($this->strTransientPrefix . $strURLID, array()); unset($this->arrFeedItems[$strURLID][0]); // casting array causes the 0 key, } // If it's out of stock, fill the array by fetching the feed. if (empty($this->arrFeedItems[$strURLID])) { // When an array of urls is passed to the Simple Pie's set_feed_url() method, the memory usage increases largely. // So fetch the feeds one by one per url and store the output into an array. foreach ($arrURLs as $strURL) { $oFeed = $this->getFeedObj($strURL, null, $fCacheRenew ? 0 : 3600); foreach ($oFeed->get_items() as $oItem) { // foreach ( $oFeed->get_items( 0, $numItems * 3 ) as $item ) does not change the memory usage $this->arrFeedItems[$strURLID][$oItem->get_title()] = array('strContent' => $oItem->get_content(), 'description' => $oItem->get_description(), 'title' => $oItem->get_title(), 'strDate' => $oItem->get_title(), 'strAuthor' => $oItem->get_date('j F Y, g:i a'), 'strLink' => $oItem->get_permalink()); } // For PHP below 5.3 to release the memory. $oFeed->__destruct(); // Do what PHP should be doing on it's own. unset($oFeed); } // This life span should be little longer than the feed cache life span, which is 1700. FetchTweets_WPUtilities::setTransient($this->strTransientPrefix . $strURLID, $this->arrFeedItems[$strURLID], 1800); // 30 minutes } $arrOut = $this->arrFeedItems[$strURLID]; if ($numItems) { array_splice($arrOut, ${$numItems}); } return $arrOut; }
/** * Returns an array of lists received from the previous page; otherwise, fetches lists from the set screen name. * */ protected function _getLists($sScreenName = '', $iAccountID = 0) { // If the cache is set from the previous page, use that. $sListTransient = isset($_GET['list_cache']) ? $_GET['list_cache'] : ''; if (!empty($sListTransient)) { $aLists = FetchTweets_WPUtilities::getTransient($sListTransient, array()); FetchTweets_WPUtilities::deleteTransient($sListTransient); return $aLists; } if (empty($sScreenName)) { return array(); } // Fetch lists from the given screen name. $_oOption =& $GLOBALS['oFetchTweets_Option']; $_aCredentials = $_oOption->getCredentialsByID($iAccountID); $oFetch = new FetchTweets_Fetch($_aCredentials['consumer_key'], $_aCredentials['consumer_secret'], $_aCredentials['access_token'], $_aCredentials['access_secret']); $aLists = $oFetch->getListNamesFromScreenName($sScreenName, $iAccountID); return $aLists; }
protected function fetchItems($arrURLs, $numItems = 1) { $strURLID = md5(serialize(is_string($arrURLs) ? array($arrURLs) : $arrURLs)); // Prepare the feed items if (!isset($this->arrFeedItems[$strURLID])) { $this->arrFeedItems[$strURLID] = FetchTweets_WPUtilities::getTransient($this->strTransientPrefix . $strURLID, array()); $this->arrFeedItems[$strURLID] = array_filter($this->arrFeedItems[$strURLID]); // casting array causes the 0 key } // If it's out of stock, fill the array by fetching the feed. shuffle($this->arrFeedItems[$strURLID]); $this->arrFeedItems[$strURLID] = array_unique($this->arrFeedItems[$strURLID]); if (count($this->arrFeedItems[$strURLID]) < $numItems) { $oReplace = new FetchTweets_HTMLElementReplacer(get_bloginfo('charset')); // When an array of urls is passed to the Simple Pie's set_feed_url() method, the memory usage increases largely. // So fetch the feeds one by one per url and store the output into an array. foreach ($arrURLs as $strURL) { $oFeed = $this->getFeedObj($strURL, $numItems * 10); // multiplied by three to store items more than enough for next calls. foreach ($oFeed->get_items() as $_oItem) { // foreach ( $oFeed->get_items( 0, $numItems * 3 ) as $item ) does not change the memory usage $this->arrFeedItems[$strURLID][] = $oReplace->Perform($_oItem->get_content()); } // For PHP below 5.3 to release the memory. $oFeed->__destruct(); // Do what PHP should be doing on it's own. unset($oFeed); } unset($oReplace); // This life span should be little longer than the feed cache life span, which is 1700. set_transient($this->strTransientPrefix . $strURLID, $this->arrFeedItems[$strURLID], 1800); // 30 minutes } $this->arrFeedItems[$strURLID] = array_unique($this->arrFeedItems[$strURLID]); shuffle($this->arrFeedItems[$strURLID]); $_sOut = ''; for ($i = 1; $i <= $numItems; $i++) { $_sOut .= array_pop($this->arrFeedItems[$strURLID]); } return $_sOut; }
/** * Re-saves the cache after adding oEmbed elements. * * @since 1.3.0 */ public function _replyToAddOEmbedElements($sRequestURI) { $strTransientKey = FetchTweets_Commons::TransientPrefix . "_" . md5($sRequestURI); // Check if the transient is locked $strLockTransient = FetchTweets_Commons::TransientPrefix . '_' . md5("LockOEm_" . trim($strTransientKey)); // up to 40 characters, the prefix can be up to 8 characters if (false !== FetchTweets_WPUtilities::getTransient($strLockTransient)) { return; // it means the cache is being modified. } // Set a lock flag transient that indicates the transient is being renewed. FetchTweets_WPUtilities::setTransient($strLockTransient, true, FetchTweets_Utilities::getAllowedMaxExecutionTime()); // Perform oEmbed caching - no API request will be performed $oFetch = new FetchTweets_Fetch(); // structure: array( 'mod' => time(), 'data' => $this->oBase64->encode( $vData ) ), $arrTransient = $oFetch->getTransient($strTransientKey); // If the mandatory keys are not set, it's broken. if (!isset($arrTransient['mod'], $arrTransient['data'])) { FetchTweets_WPUtilities::deleteTransient($strTransientKey); return; } $arrTweets = (array) $this->oBase64->decode($arrTransient['data']); $oFetch->addEmbeddableMediaElements($arrTweets); // the array is passed as reference. // Re-save the cache. // FetchTweets_Debug::logArray( 'saving oembed transient' ); $oFetch->setTransient($sRequestURI, $arrTweets, $arrTransient['mod'], true); // the method handles the encoding. // Delete the lock transient FetchTweets_WPUtilities::deleteTransient($strLockTransient); }
/** * A wrapper method for the get_transient() function. * * This method does retrieves the transient with the given transient key. In addition, it checks if it is an array; otherwise, it makes it an array. * * @access public * @since 1.2.0 * @since 1.3.0 Made it public as the event method uses it. */ public function getTransient($sTransientKey, $fForceArray = true) { $_vData = FetchTweets_WPUtilities::getTransient($sTransientKey); // if it's false, no transient is stored. Otherwise, some values are in there. if (false === $_vData) { return false; } // If it does not have to be an array. Return the raw result. if (!$fForceArray) { return $_vData; } // If it's array, okay. if (is_array($_vData)) { return $_vData; } // Maybe it's encoded if (is_string($_vData) && is_serialized($_vData)) { return unserialize($_vData); } // Maybe it's an object. In that case, convert it to an associative array. if (is_object($_vData)) { return get_object_vars($_vData); } // It's an unknown type. So cast array and return it. return (array) $_vData; }
/** * A callback for the accessSiteAtShutDown() method. * * @since 1.0.0 */ public static function _replyToAccessSite() { // Retrieve the plugin scheduled tasks array. $_sTransientName = md5(get_class()); $_aTasks = FetchTweets_WPUtilities::getTransient($_sTransientName); $_aTasks = $_aTasks ? $_aTasks : array(); $_nNow = microtime(true); // Check the excessive background call protection interval if (!self::$_fIgnoreLock) { $_nCalled = isset($_aTasks['called']) ? $_aTasks['called'] : 0; if ($_nCalled + self::$_iLockBackgroundCallInterval > $_nNow) { return; // if it's called within 10 seconds from the last time of calling this method, do nothing to avoid excessive calls. } } // Renew the called time. $_aFlagKeys = array('called' => $_nNow); FetchTweets_WPUtilities::setTransient($_sTransientName, $_aFlagKeys + $_aTasks, self::getAllowedMaxExecutionTime()); // set a locked key so it prevents duplicated function calls due to too many calls caused by simultaneous accesses. // Compose a GET query array $_aGet = self::$_aGet; if (defined('WP_DEBUG')) { $_aGet['debug'] = WP_DEBUG; } unset($_aGet[0]); // Load the site in the background. wp_remote_get(site_url('?' . http_build_query($_aGet)), array('timeout' => 0.01, 'sslverify' => false, 'cookies' => $_aFlagKeys + array($_sTransientName => true))); }