function add_cache($tweet)
{
    global $smcFunc, $txt, $sourcedir;
    $twitterapi_url = "https://api.twitter.com/1/statuses/oembed.json?id=";
    $twitterapi_url = $twitterapi_url . $tweet;
    if (function_exists('curl_init')) {
        $curl = curl_init($twitterapi_url);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        $response = curl_exec($curl);
        curl_close($curl);
    } else {
        require_once $sourcedir . '/Subs-Package.php';
        $response = fetch_web_data($twitterapi_url);
    }
    $json_content = json_decode($response, true);
    $json_content = preg_replace("/\r|\n/", "", $json_content);
    $html = $json_content['html'];
    if (!empty($html)) {
        $request = $smcFunc['db_insert']('', '{db_prefix}tweet_cache', array('tweetid' => 'raw', 'html' => 'text'), array($tweet, addslashes($html)), array('tweetid', 'html'));
        echo '{"html" : "' . addslashes($html) . '"}';
    } else {
        echo '{"html":"<p style=\\"color: #666; border: 1px dotted #666; padding: 5px; width: 490px;\\">' . $txt['autotwitter_tweeterror'] . '</p>"}';
    }
}

function list_getLanguagesList()
{
    global $forum_version, $context, $sourcedir, $smcFunc, $txt, $scripturl;
    // We're going to use this URL.
    $url = 'http://download.simplemachines.org/fetch_language.php?version=' . urlencode(strtr($forum_version, array('SMF ' => '')));
    // Load the class file and stick it into an array.
    require_once $sourcedir . '/Class-Package.php';
    $language_list = new xmlArray(fetch_web_data($url), true);
    // Check that the site responded and that the language exists.
    if (!$language_list->exists('languages')) {
        $context['smf_error'] = 'no_response';
    } elseif (!$language_list->exists('languages/language')) {
        $context['smf_error'] = 'no_files';
    } else {
        $language_list = $language_list->path('languages[0]');
        $lang_files = $language_list->set('language');
        $smf_languages = array();
        foreach ($lang_files as $file) {
            // Were we searching?
            if (!empty($context['smf_search_term']) && strpos($file->fetch('name'), $smcFunc['strtolower']($context['smf_search_term'])) === false) {
                continue;
            }
            $smf_languages[] = array('id' => $file->fetch('id'), 'name' => $smcFunc['ucwords']($file->fetch('name')), 'version' => $file->fetch('version'), 'utf8' => $file->fetch('utf8') ? $txt['yes'] : $txt['no'], 'description' => $file->fetch('description'), 'install_link' => '<a href="' . $scripturl . '?action=admin;area=languages;sa=downloadlang;did=' . $file->fetch('id') . ';' . $context['session_var'] . '=' . $context['session_id'] . '">' . $txt['add_language_smf_install'] . '</a>');
        }
        if (empty($smf_languages)) {
            $context['smf_error'] = 'no_files';
        } else {
            return $smf_languages;
        }
    }
}

 /**
  * Retrieve server information.
  *
  * @param string $openid_url
  * @return boolean|array
  */
 public function getServerInfo($openid_url)
 {
     require_once SUBSDIR . '/Package.subs.php';
     // Get the html and parse it for the openid variable which will tell us where to go.
     $webdata = fetch_web_data($openid_url);
     if (empty($webdata)) {
         return false;
     }
     $response_data = array();
     // dirty, but .. Yadis response? Let's get the <URI>
     preg_match('~<URI.*?>(.*)</URI>~', $webdata, $uri);
     if ($uri) {
         $response_data['provider'] = $uri[1];
         $response_data['server'] = $uri[1];
         return $response_data;
     }
     // Some OpenID servers have strange but still valid HTML which makes our job hard.
     if (preg_match_all('~<link([\\s\\S]*?)/?>~i', $webdata, $link_matches) == 0) {
         fatal_lang_error('openid_server_bad_response');
     }
     foreach ($link_matches[1] as $link_match) {
         if (preg_match('~rel="([\\s\\S]*?)"~i', $link_match, $rel_match) == 0 || preg_match('~href="([\\s\\S]*?)"~i', $link_match, $href_match) == 0) {
             continue;
         }
         $rels = preg_split('~\\s+~', $rel_match[1]);
         foreach ($rels as $rel) {
             if (preg_match('~openid2?\\.(server|delegate|provider)~i', $rel, $match) != 0) {
                 $response_data[$match[1]] = $href_match[1];
             }
         }
     }
     if (empty($response_data['provider'])) {
         $response_data['server'] = $openid_url;
     } else {
         $response_data['server'] = $response_data['provider'];
     }
     return $response_data;
 }

function PackageDownload()
{
    global $txt, $scripturl, $boarddir, $context, $sourcedir, $db_prefix;
    // Use the downloaded sub template.
    $context['sub_template'] = 'downloaded';
    // Security is good...
    checkSession('get');
    if (isset($_GET['server'])) {
        $server = (int) $_GET['server'];
        // Query the server table to find the requested server.
        $request = db_query("\n\t\t\tSELECT name, url\n\t\t\tFROM {$db_prefix}package_servers\n\t\t\tWHERE ID_SERVER = {$server}\n\t\t\tLIMIT 1", __FILE__, __LINE__);
        list($name, $url) = mysql_fetch_row($request);
        mysql_free_result($request);
        // If server does not exist then dump out.
        if (empty($url)) {
            fatal_lang_error('smf191', false);
        }
        $url = $url . '/';
    } else {
        // Initialize the requried variables.
        $server = '';
        $url = '';
    }
    $package_name = basename($_REQUEST['package']);
    if (isset($_REQUEST['conflict']) || isset($_REQUEST['auto']) && file_exists($boarddir . '/Packages/' . $package_name)) {
        // Find the extension, change abc.tar.gz to abc_1.tar.gz...
        if (strrpos(substr($package_name, 0, -3), '.') !== false) {
            $ext = substr($package_name, strrpos(substr($package_name, 0, -3), '.'));
            $package_name = substr($package_name, 0, strrpos(substr($package_name, 0, -3), '.')) . '_';
        } else {
            $ext = '';
        }
        // Find the first available.
        $i = 1;
        while (file_exists($boarddir . '/Packages/' . $package_name . $i . $ext)) {
            $i++;
        }
        $package_name = $package_name . $i . $ext;
    }
    // First make sure it's a package.
    if (getPackageInfo($url . $_REQUEST['package']) == false) {
        fatal_lang_error('package45', false);
    }
    // Use FTP if necessary.
    packageRequireFTP($scripturl . '?action=packageget;sa=download' . (isset($_GET['server']) ? ';server=' . $_GET['server'] : '') . (isset($_REQUEST['auto']) ? ';auto' : '') . ';package=' . $_REQUEST['package'] . (isset($_REQUEST['conflict']) ? ';conflict' : '') . ';sesc=' . $context['session_id'], array($boarddir . '/Packages/' . $package_name));
    package_put_contents($boarddir . '/Packages/' . $package_name, fetch_web_data($url . $_REQUEST['package']));
    // Done!  Did we get this package automatically?
    if (preg_match('~^http://[\\w_\\-]+\\.simplemachines\\.org/~', $_REQUEST['package']) == 1 && strpos($_REQUEST['package'], 'dlattach') === false && isset($_REQUEST['auto'])) {
        redirectexit('action=packages;sa=install;package=' . $package_name . ';sesc=' . $context['session_id']);
    }
    // You just downloaded a mod from SERVER_NAME_GOES_HERE.
    $context['package_server'] = $server;
    $context['package'] = getPackageInfo($package_name);
    if (empty($context['package'])) {
        fatal_lang_error('package_cant_download', false);
    }
    if ($context['package']['type'] == 'modification') {
        $context['package']['install']['link'] = '<a href="' . $scripturl . '?action=packages;sa=install;package=' . $context['package']['filename'] . ';sesc=' . $context['session_id'] . '">[ ' . $txt['package11'] . ' ]</a>';
    } elseif ($context['package']['type'] == 'avatar') {
        $context['package']['install']['link'] = '<a href="' . $scripturl . '?action=packages;sa=install;package=' . $context['package']['filename'] . ';sesc=' . $context['session_id'] . '">[ ' . $txt['package12'] . ' ]</a>';
    } elseif ($context['package']['type'] == 'language') {
        $context['package']['install']['link'] = '<a href="' . $scripturl . '?action=packages;sa=install;package=' . $context['package']['filename'] . ';sesc=' . $context['session_id'] . '">[ ' . $txt['package13'] . ' ]</a>';
    } else {
        $context['package']['install']['link'] = '';
    }
    $context['package']['list_files']['link'] = '<a href="' . $scripturl . '?action=packages;sa=list;package=' . $context['package']['filename'] . '">[ ' . $txt['package14'] . ' ]</a>';
    // Free a little bit of memory...
    unset($context['package']['xml']);
    $context['page_title'] = $txt['smf192'];
}

function url_image_size($url)
{
    global $sourcedir;
    // Make sure it is a proper URL.
    $url = str_replace(' ', '%20', $url);
    // Can we pull this from the cache... please please?
    if (($temp = cache_get_data('url_image_size-' . md5($url), 240)) !== null) {
        return $temp;
    }
    $t = microtime();
    // Get the host to pester...
    preg_match('~^\\w+://(.+?)/(.*)$~', $url, $match);
    // Can't figure it out, just try the image size.
    if ($url == '' || $url == 'http://' || $url == 'https://') {
        return false;
    } elseif (!isset($match[1])) {
        $size = @getimagesize($url);
    } else {
        // Try to connect to the server... give it half a second.
        $temp = 0;
        $fp = @fsockopen($match[1], 80, $temp, $temp, 0.5);
        // Successful?  Continue...
        if ($fp != false) {
            // Send the HEAD request (since we don't have to worry about chunked, HTTP/1.1 is fine here.)
            fwrite($fp, 'HEAD /' . $match[2] . ' HTTP/1.1' . "\r\n" . 'Host: ' . $match[1] . "\r\n" . 'User-Agent: PHP/SMF' . "\r\n" . 'Connection: close' . "\r\n\r\n");
            // Read in the HTTP/1.1 or whatever.
            $test = substr(fgets($fp, 11), -1);
            fclose($fp);
            // See if it returned a 404/403 or something.
            if ($test < 4) {
                $size = @getimagesize($url);
                // This probably means allow_url_fopen is off, let's try GD.
                if ($size === false && function_exists('imagecreatefromstring')) {
                    include_once $sourcedir . '/Subs-Package.php';
                    // It's going to hate us for doing this, but another request...
                    $image = @imagecreatefromstring(fetch_web_data($url));
                    if ($image !== false) {
                        $size = array(imagesx($image), imagesy($image));
                        imagedestroy($image);
                    }
                }
            }
        }
    }
    // If we didn't get it, we failed.
    if (!isset($size)) {
        $size = false;
    }
    // If this took a long time, we may never have to do it again, but then again we might...
    if (array_sum(explode(' ', microtime())) - array_sum(explode(' ', $t)) > 0.8) {
        cache_put_data('url_image_size-' . md5($url), $size, 240);
    }
    // Didn't work.
    return $size;
}

function fetch_web_data($url, $post_data = '', $keep_alive = false, $redirection_level = 0)
{
    global $webmaster_email;
    static $keep_alive_dom = null, $keep_alive_fp = null;
    preg_match('~^(http|ftp)(s)?://([^/:]+)(:(\\d+))?(.+)$~', $url, $match);
    // An FTP url. We should try connecting and RETRieving it...
    if (empty($match[1])) {
        return false;
    } elseif ($match[1] == 'ftp') {
        // Include the file containing the ftp_connection class.
        loadClassFile('Class-Package.php');
        // Establish a connection and attempt to enable passive mode.
        $ftp = new ftp_connection(($match[2] ? 'ssl://' : '') . $match[3], empty($match[5]) ? 21 : $match[5], 'anonymous', $webmaster_email);
        if ($ftp->error !== false || !$ftp->passive()) {
            return false;
        }
        // I want that one *points*!
        fwrite($ftp->connection, 'RETR ' . $match[6] . "\r\n");
        // Since passive mode worked (or we would have returned already!) open the connection.
        $fp = @fsockopen($ftp->pasv['ip'], $ftp->pasv['port'], $err, $err, 5);
        if (!$fp) {
            return false;
        }
        // The server should now say something in acknowledgement.
        $ftp->check_response(150);
        $data = '';
        while (!feof($fp)) {
            $data .= fread($fp, 4096);
        }
        fclose($fp);
        // All done, right?  Good.
        $ftp->check_response(226);
        $ftp->close();
    } elseif (isset($match[1]) && $match[1] == 'http') {
        if ($keep_alive && $match[3] == $keep_alive_dom) {
            $fp = $keep_alive_fp;
        }
        if (empty($fp)) {
            // Open the socket on the port we want...
            $fp = @fsockopen(($match[2] ? 'ssl://' : '') . $match[3], empty($match[5]) ? $match[2] ? 443 : 80 : $match[5], $err, $err, 5);
            if (!$fp) {
                return false;
            }
        }
        if ($keep_alive) {
            $keep_alive_dom = $match[3];
            $keep_alive_fp = $fp;
        }
        // I want this, from there, and I'm not going to be bothering you for more (probably.)
        if (empty($post_data)) {
            fwrite($fp, 'GET ' . $match[6] . ' HTTP/1.0' . "\r\n");
            fwrite($fp, 'Host: ' . $match[3] . (empty($match[5]) ? $match[2] ? ':443' : '' : ':' . $match[5]) . "\r\n");
            fwrite($fp, 'User-Agent: PHP/SMF' . "\r\n");
            if ($keep_alive) {
                fwrite($fp, 'Connection: Keep-Alive' . "\r\n\r\n");
            } else {
                fwrite($fp, 'Connection: close' . "\r\n\r\n");
            }
        } else {
            fwrite($fp, 'POST ' . $match[6] . ' HTTP/1.0' . "\r\n");
            fwrite($fp, 'Host: ' . $match[3] . (empty($match[5]) ? $match[2] ? ':443' : '' : ':' . $match[5]) . "\r\n");
            fwrite($fp, 'User-Agent: PHP/SMF' . "\r\n");
            if ($keep_alive) {
                fwrite($fp, 'Connection: Keep-Alive' . "\r\n");
            } else {
                fwrite($fp, 'Connection: close' . "\r\n");
            }
            fwrite($fp, 'Content-Type: application/x-www-form-urlencoded' . "\r\n");
            fwrite($fp, 'Content-Length: ' . strlen($post_data) . "\r\n\r\n");
            fwrite($fp, $post_data);
        }
        $response = fgets($fp, 768);
        // Redirect in case this location is permanently or temporarily moved.
        if ($redirection_level < 3 && preg_match('~^HTTP/\\S+\\s+30[127]~i', $response) === 1) {
            $header = '';
            $location = '';
            while (!feof($fp) && trim($header = fgets($fp, 4096)) != '') {
                if (strpos($header, 'Location:') !== false) {
                    $location = trim(substr($header, strpos($header, ':') + 1));
                }
            }
            if (empty($location)) {
                return false;
            } else {
                if (!$keep_alive) {
                    fclose($fp);
                }
                return fetch_web_data($location, $post_data, $keep_alive, $redirection_level + 1);
            }
        } elseif (preg_match('~^HTTP/\\S+\\s+20[01]~i', $response) === 0) {
            return false;
        }
        // Skip the headers...
        while (!feof($fp) && trim($header = fgets($fp, 4096)) != '') {
            if (preg_match('~content-length:\\s*(\\d+)~i', $header, $match) != 0) {
                $content_length = $match[1];
            } elseif (preg_match('~connection:\\s*close~i', $header) != 0) {
                $keep_alive_dom = null;
                $keep_alive = false;
            }
//.........这里部分代码省略.........

function scheduled_fetchSMfiles()
{
    global $sourcedir, $txt, $language, $settings, $forum_version, $modSettings, $smcFunc;
    return;
    // todo this does no longer make sense
    // What files do we want to get
    $request = smf_db_query('
		SELECT id_file, filename, path, parameters
		FROM {db_prefix}admin_info_files', array());
    $js_files = array();
    while ($row = mysql_fetch_assoc($request)) {
        $js_files[$row['id_file']] = array('filename' => $row['filename'], 'path' => $row['path'], 'parameters' => sprintf($row['parameters'], $language, urlencode($modSettings['time_format']), urlencode($forum_version)));
    }
    mysql_free_result($request);
    // We're gonna need fetch_web_data() to pull this off.
    require_once $sourcedir . '/lib/Subs-Package.php';
    // Just in case we run into a problem.
    loadEssentialThemeData();
    loadLanguage('Errors', $language, false);
    foreach ($js_files as $ID_FILE => $file) {
        // Create the url
        $server = empty($file['path']) || substr($file['path'], 0, 7) != 'http://' ? 'http://www.simplemachines.org' : '';
        $url = $server . (!empty($file['path']) ? $file['path'] : $file['path']) . $file['filename'] . (!empty($file['parameters']) ? '?' . $file['parameters'] : '');
        // Get the file
        $file_data = fetch_web_data($url);
        // If we got an error - give up - the site might be down.
        if ($file_data === false) {
            log_error(sprintf($txt['st_cannot_retrieve_file'], $url));
            return false;
        }
        // Save the file to the database.
        smf_db_query('
			UPDATE {db_prefix}admin_info_files
			SET data = SUBSTRING({string:file_data}, 1, 65534)
			WHERE id_file = {int:id_file}', array('id_file' => $ID_FILE, 'file_data' => $file_data));
    }
    return true;
}

/**
 * Resizes an image from a remote location or a local file.
 *
 * - Puts the resized image at the destination location.
 * - The file would have the format preferred_format if possible,
 * otherwise the default format is jpeg.
 *
 * @package Graphics
 * @param string $source
 * @param string $destination
 * @param int $max_width
 * @param int $max_height
 * @param int $preferred_format = 0
 */
function resizeImageFile($source, $destination, $max_width, $max_height, $preferred_format = 0)
{
    // Nothing to do without GD or IM
    if (!checkGD() && !checkImagick()) {
        return false;
    }
    static $default_formats = array('1' => 'gif', '2' => 'jpeg', '3' => 'png', '6' => 'bmp', '15' => 'wbmp');
    require_once SUBSDIR . '/Package.subs.php';
    // Get the image file, we have to work with something after all
    $fp_destination = fopen($destination, 'wb');
    if ($fp_destination && (substr($source, 0, 7) == 'http://' || substr($source, 0, 8) == 'https://')) {
        $fileContents = fetch_web_data($source);
        fwrite($fp_destination, $fileContents);
        fclose($fp_destination);
        $sizes = @getimagesize($destination);
    } elseif ($fp_destination) {
        $sizes = @getimagesize($source);
        $fp_source = fopen($source, 'rb');
        if ($fp_source !== false) {
            while (!feof($fp_source)) {
                fwrite($fp_destination, fread($fp_source, 8192));
            }
            fclose($fp_source);
        } else {
            $sizes = array(-1, -1, -1);
        }
        fclose($fp_destination);
    } else {
        $sizes = array(-1, -1, -1);
    }
    // See if we have -or- can get the needed memory for this operation
    if (checkGD() && !imageMemoryCheck($sizes)) {
        return false;
    }
    // A known and supported format?
    if (checkImagick() && isset($default_formats[$sizes[2]])) {
        return resizeImage(null, $destination, null, null, $max_width, $max_height, true, $preferred_format);
    } elseif (checkGD() && isset($default_formats[$sizes[2]]) && function_exists('imagecreatefrom' . $default_formats[$sizes[2]])) {
        $imagecreatefrom = 'imagecreatefrom' . $default_formats[$sizes[2]];
        if ($src_img = @$imagecreatefrom($destination)) {
            return resizeImage($src_img, $destination, imagesx($src_img), imagesy($src_img), $max_width === null ? imagesx($src_img) : $max_width, $max_height === null ? imagesy($src_img) : $max_height, true, $preferred_format);
        }
    }
    return false;
}

function AdminSearchOM()
{
    global $context, $sourcedir;
    $docsURL = 'docs.simplemachines.org';
    $context['doc_scripturl'] = 'http://docs.simplemachines.org/index.php';
    // Set all the parameters search might expect.
    $postVars = array('search' => $context['search_term']);
    // Encode the search data.
    foreach ($postVars as $k => $v) {
        $postVars[$k] = urlencode($k) . '=' . urlencode($v);
    }
    // This is what we will send.
    $postVars = implode('&', $postVars);
    // Get the results from the doc site.
    require_once $sourcedir . '/lib/Subs-Package.php';
    $search_results = fetch_web_data($context['doc_scripturl'] . '?action=search2&xml', $postVars);
    // If we didn't get any xml back we are in trouble - perhaps the doc site is overloaded?
    if (!$search_results || preg_match('~<' . '\\?xml\\sversion="\\d+\\.\\d+"\\sencoding=".+?"\\?' . '>\\s*(<smf>.+?</smf>)~is', $search_results, $matches) != true) {
        fatal_lang_error('cannot_connect_doc_site');
    }
    $search_results = $matches[1];
    // Otherwise we simply walk through the XML and stick it in context for display.
    $context['search_results'] = array();
    loadClassFile('Class-Package.php');
    // Get the results loaded into an array for processing!
    $results = new xmlArray($search_results, false);
    // Move through the smf layer.
    if (!$results->exists('smf')) {
        fatal_lang_error('cannot_connect_doc_site');
    }
    $results = $results->path('smf[0]');
    // Are there actually some results?
    if (!$results->exists('noresults') && !$results->exists('results')) {
        fatal_lang_error('cannot_connect_doc_site');
    } elseif ($results->exists('results')) {
        foreach ($results->set('results/result') as $result) {
            if (!$result->exists('messages')) {
                continue;
            }
            $context['search_results'][$result->fetch('id')] = array('topic_id' => $result->fetch('id'), 'relevance' => $result->fetch('relevance'), 'board' => array('id' => $result->fetch('board/id'), 'name' => $result->fetch('board/name'), 'href' => $result->fetch('board/href')), 'category' => array('id' => $result->fetch('category/id'), 'name' => $result->fetch('category/name'), 'href' => $result->fetch('category/href')), 'messages' => array());
            // Add the messages.
            foreach ($result->set('messages/message') as $message) {
                $context['search_results'][$result->fetch('id')]['messages'][] = array('id' => $message->fetch('id'), 'subject' => $message->fetch('subject'), 'body' => $message->fetch('body'), 'time' => $message->fetch('time'), 'timestamp' => $message->fetch('timestamp'), 'start' => $message->fetch('start'), 'author' => array('id' => $message->fetch('author/id'), 'name' => $message->fetch('author/name'), 'href' => $message->fetch('author/href')));
            }
        }
    }
}

function sp_rssFeed($parameters, $id, $return_parameters = false)
{
    global $smcFunc, $sourcedir, $context, $txt;
    $block_parameters = array('url' => 'text', 'show_title' => 'check', 'show_content' => 'check', 'show_date' => 'check', 'strip_preserve' => 'text', 'count' => 'int', 'limit' => 'int');
    if ($return_parameters) {
        return $block_parameters;
    }
    $feed = !empty($parameters['url']) ? un_htmlspecialchars($parameters['url']) : '';
    $show_title = !empty($parameters['show_title']);
    $show_content = !empty($parameters['show_content']);
    $show_date = !empty($parameters['show_date']);
    $strip_preserve = !empty($parameters['strip_preserve']) ? $parameters['strip_preserve'] : 'br';
    $strip_preserve = preg_match_all('~[A-Za-z0-9]+~', $strip_preserve, $match) ? $match[0] : array();
    $count = !empty($parameters['count']) ? (int) $parameters['count'] : 5;
    $limit = !empty($parameters['limit']) ? (int) $parameters['limit'] : 150;
    if (empty($feed)) {
        echo '
								', $txt['error_sp_invalid_feed'];
        return;
    }
    $rss = array();
    require_once $sourcedir . '/Subs-Package.php';
    $data = fetch_web_data($feed);
    if (function_exists('mb_convert_encoding')) {
        preg_match('~encoding="([^"]*)"~', $data, $charset);
        if (!empty($charset[1]) && $charset != $context['character_set']) {
            $data = mb_convert_encoding($data, $context['character_set'], $charset[1]);
        }
    } elseif (function_exists('iconv')) {
        preg_match('~encoding="([^"]*)"~', $data, $charset);
        if (!empty($charset[1]) && $charset != $context['character_set']) {
            $data = iconv($charset[1], $context['character_set'], $data);
        }
    }
    $data = str_replace(array("\n", "\r", "\t"), '', $data);
    $data = preg_replace('~<\\!\\[CDATA\\[(.+?)\\]\\]>~e' . ($context['utf8'] ? 'u' : ''), '\'#cdata_escape_encode#\' . $smcFunc[\'htmlspecialchars\'](\'$1\')', $data);
    preg_match_all('~<item>(.+?)</item>~', $data, $items);
    foreach ($items[1] as $item_id => $item) {
        if ($item_id === $count) {
            break;
        }
        preg_match_all('~<([A-Za-z]+)>(.+?)</\\1>~', $item, $match);
        foreach ($match[0] as $tag_id => $dummy) {
            if ($smcFunc['strpos']($match[2][$tag_id], '#cdata_escape_encode#') === 0) {
                $match[2][$tag_id] = stripslashes(un_htmlspecialchars($smcFunc['substr']($match[2][$tag_id], 21)));
            }
            $rss[$item_id][strtolower($match[1][$tag_id])] = un_htmlspecialchars($match[2][$tag_id]);
        }
    }
    if (empty($rss)) {
        echo '
								', $txt['error_sp_invalid_feed'];
        return;
    }
    $items = array();
    foreach ($rss as $item) {
        $item['title'] = isset($item['title']) ? strip_tags($item['title']) : '';
        $item['description'] = isset($item['description']) ? strip_tags($item['description'], empty($strip_preserve) ? '' : '<' . implode('><', $strip_preserve) . '>') : '';
        $items[] = array('title' => $item['title'], 'href' => $item['link'], 'link' => $item['title'] == '' ? '' : ($item['link'] == '' ? $item['title'] : '<a href="' . $item['link'] . '" target="_blank" class="new_win">' . $item['title'] . '</a>'), 'content' => $limit > 0 && $smcFunc['strlen']($item['description']) > $limit ? $smcFunc['substr']($item['description'], 0, $limit) . '...' : $item['description'], 'date' => !empty($item['pubdate']) ? timeformat(strtotime($item['pubdate']), '%d %B') : '');
    }
    if (empty($items)) {
        echo '
								', $txt['error_sp_invalid_feed'];
        return;
    } else {
        $items[count($items) - 1]['is_last'] = true;
    }
    if ($show_content) {
        echo '
								<div class="sp_rss_flow">
									<ul class="sp_list">';
        foreach ($items as $item) {
            if ($show_title && !empty($item['link'])) {
                echo '
										<li class="sp_list_top">', sp_embed_image('post'), ' <strong>', $item['link'], '</strong>', $show_date && !empty($item['date']) ? ' - ' . $item['date'] : '', '</li>';
            }
            echo '
										<li', empty($item['is_last']) ? ' class="sp_list_divider"' : '', '>', $item['content'], '</li>';
        }
        echo '
									</ul>
								</div>';
    } else {
        echo '
								<ul class="sp_list">';
        foreach ($items as $item) {
            echo '
									<li>', sp_embed_image('dot_feed'), ' ', $item['link'], $show_date && !empty($item['date']) ? ' - ' . $item['date'] : '', '</li>';
        }
        echo '
								</ul>';
    }
}

/**
 * Gets a list of available languages from the mother ship
 *
 * - Will return a subset if searching, otherwise all available
 *
 * @package Languages
 * @return string
 */
function list_getLanguagesList()
{
    global $forum_version, $context, $txt, $scripturl;
    // We're going to use this URL.
    // @todo no we are not, this needs to be changed - again
    $url = 'http://download.elkarte.net/fetch_language.php?version=' . urlencode(strtr($forum_version, array('ElkArte ' => '')));
    // Load the class file and stick it into an array.
    require_once SUBSDIR . '/XmlArray.class.php';
    $language_list = new Xml_Array(fetch_web_data($url), true);
    // Check that the site responded and that the language exists.
    if (!$language_list->exists('languages')) {
        $context['langfile_error'] = 'no_response';
    } elseif (!$language_list->exists('languages/language')) {
        $context['langfile_error'] = 'no_files';
    } else {
        $language_list = $language_list->path('languages[0]');
        $lang_files = $language_list->set('language');
        $languages = array();
        foreach ($lang_files as $file) {
            // Were we searching?
            if (!empty($context['elk_search_term']) && strpos($file->fetch('name'), Util::strtolower($context['elk_search_term'])) === false) {
                continue;
            }
            $languages[] = array('id' => $file->fetch('id'), 'name' => Util::ucwords($file->fetch('name')), 'version' => $file->fetch('version'), 'utf8' => $txt['yes'], 'description' => $file->fetch('description'), 'install_link' => '<a href="' . $scripturl . '?action=admin;area=languages;sa=downloadlang;did=' . $file->fetch('id') . ';' . $context['session_var'] . '=' . $context['session_id'] . '">' . $txt['add_language_elk_install'] . '</a>');
        }
        if (empty($languages)) {
            $context['langfile_error'] = 'no_files';
        } else {
            return $languages;
        }
    }
}

 public static function fb_do_agree()
 {
     global $sourcedir, $context, $boarddir, $boardurl, $user_info, $fb_hook_object;
     require_once $sourcedir . '/Subs-Package.php';
     if (isset($_GET['agree'])) {
         loadLanguage('Login');
         $context['sub_template'] = 'regfb_agree';
         if (file_exists($boarddir . '/agreement.' . $user_info['language'] . '.txt')) {
             $context['agreement'] = parse_bbc(fetch_web_data($boardurl . '/agreement.' . $user_info['language'] . '.txt'), true, 'agreement_' . $user_info['language']);
         } elseif (file_exists($boarddir . '/agreement.txt')) {
             $context['agreement'] = parse_bbc(fetch_web_data($boardurl . '/agreement.txt'), true, 'agreement');
         } else {
             $context['agreement'] = '';
         }
     } else {
         if (!isset($_POST['accept_agreement']) && !empty($fb_hook_object->modSettings['requireAgreement'])) {
             redirectexit('action=facebookintegrate;area=connect;agree');
         }
     }
 }

function downloadAvatar($url, $memID, $max_width, $max_height)
{
    global $modSettings, $db_prefix, $sourcedir, $gd2;
    $destName = 'avatar_' . $memID . '.' . (!empty($modSettings['avatar_download_png']) ? 'png' : 'jpeg');
    $default_formats = array('1' => 'gif', '2' => 'jpeg', '3' => 'png', '6' => 'bmp', '15' => 'wbmp');
    // Check to see if GD is installed and what version.
    $testGD = get_extension_funcs('gd');
    // If GD is not installed, this function is pointless.
    if (empty($testGD)) {
        return false;
    }
    // Just making sure there is a non-zero member.
    if (empty($memID)) {
        return false;
    }
    // GD 2 maybe?
    $gd2 = in_array('imagecreatetruecolor', $testGD) && function_exists('imagecreatetruecolor');
    unset($testGD);
    require_once $sourcedir . '/ManageAttachments.php';
    removeAttachments('a.ID_MEMBER = ' . $memID);
    $avatar_hash = empty($modSettings['custom_avatar_enabled']) ? getAttachmentFilename($destName, false, true) : '';
    db_query("\n\t\tINSERT INTO {$db_prefix}attachments\n\t\t\t(ID_MEMBER, attachmentType, filename, file_hash, size)\n\t\tVALUES ({$memID}, " . (empty($modSettings['custom_avatar_enabled']) ? '0' : '1') . ", '{$destName}', '" . (empty($avatar_hash) ? "" : "{$avatar_hash}") . "', 1)", __FILE__, __LINE__);
    $attachID = db_insert_id();
    $destName = (empty($modSettings['custom_avatar_enabled']) ? $modSettings['attachmentUploadDir'] : $modSettings['custom_avatar_dir']) . '/' . $destName . '.tmp';
    $success = false;
    $sizes = url_image_size($url);
    require_once $sourcedir . '/Subs-Package.php';
    $fp = fopen($destName, 'wb');
    if ($fp && substr($url, 0, 7) == 'http://') {
        $fileContents = fetch_web_data($url);
        // Though not an exhaustive list, better safe than sorry.
        if (preg_match('~(iframe|\\<\\?php|\\<\\?[\\s=]|\\<%[\\s=]|html|eval|body|script\\W)~', $fileContents) === 1) {
            fclose($fp);
            return false;
        }
        fwrite($fp, $fileContents);
        fclose($fp);
    } elseif ($fp) {
        $fp2 = fopen($url, 'rb');
        $prev_chunk = '';
        while (!feof($fp2)) {
            $cur_chunk = fread($fp2, 8192);
            // Make sure nothing odd came through.
            if (preg_match('~(iframe|\\<\\?php|\\<\\?[\\s=]|\\<%[\\s=]|html|eval|body|script\\W)~', $prev_chunk . $cur_chunk) === 1) {
                fclose($fp2);
                fclose($fp);
                unlink($destName);
                return false;
            }
            fwrite($fp, $cur_chunk);
            $prev_chunk = $cur_chunk;
        }
        fclose($fp2);
        fclose($fp);
    } else {
        $sizes = array(-1, -1, -1);
    }
    // Gif? That might mean trouble if gif support is not available.
    if ($sizes[2] == 1 && !function_exists('imagecreatefromgif') && function_exists('imagecreatefrompng')) {
        // Download it to the temporary file... use the special gif library... and save as png.
        if ($img = @gif_loadFile($destName) && gif_outputAsPng($img, $destName)) {
            $sizes[2] = 3;
        }
    }
    // A known and supported format?
    if (isset($default_formats[$sizes[2]]) && function_exists('imagecreatefrom' . $default_formats[$sizes[2]])) {
        $imagecreatefrom = 'imagecreatefrom' . $default_formats[$sizes[2]];
        if ($src_img = @$imagecreatefrom($destName)) {
            resizeImage($src_img, $destName, imagesx($src_img), imagesy($src_img), $max_width, $max_height);
            $success = true;
        }
    }
    // Remove the .tmp extension.
    $destName = substr($destName, 0, -4);
    if ($success) {
        // Remove the .tmp extension from the attachment.
        if (rename($destName . '.tmp', empty($avatar_hash) ? $destName : $modSettings['attachmentUploadDir'] . '/' . $attachID . '_' . $avatar_hash)) {
            $destName = empty($avatar_hash) ? $destName : $modSettings['attachmentUploadDir'] . '/' . $attachID . '_' . $avatar_hash;
            list($width, $height) = getimagesize($destName);
            // Write filesize in the database.
            db_query("\n\t\t\t\tUPDATE {$db_prefix}attachments\n\t\t\t\tSET size = " . filesize($destName) . ", width = " . (int) $width . ", height = " . (int) $height . "\n\t\t\t\tWHERE ID_ATTACH = {$attachID}\n\t\t\t\tLIMIT 1", __FILE__, __LINE__);
            return true;
        } else {
            return false;
        }
    } else {
        db_query("\n\t\t\tDELETE FROM {$db_prefix}attachments\n\t\t\tWHERE ID_ATTACH = {$attachID}\n\t\t\tLIMIT 1", __FILE__, __LINE__);
        @unlink($destName . '.tmp');
        return false;
    }
}

/**
 * RSS Block, Displays rss feed in a block.
 *
 * @param mixed[] $parameters
 *		'url' => url of the feed
 *		'show_title' => Show the feed title
 *		'show_content' => Show the content of the feed
 *		'show_date' => Show the date of the feed item
 *		'strip_preserve' => preserve tags
 * 		'count' => number of items to show
 * 		'limit' => number of characters of content to show
 * @param int $id - not used in this block
 * @param boolean $return_parameters if true returns the configuration options for the block
 */
function sp_rssFeed($parameters, $id, $return_parameters = false)
{
    global $txt;
    $block_parameters = array('url' => 'text', 'show_title' => 'check', 'show_content' => 'check', 'show_date' => 'check', 'strip_preserve' => 'text', 'count' => 'int', 'limit' => 'int');
    if ($return_parameters) {
        return $block_parameters;
    }
    $feed = !empty($parameters['url']) ? un_htmlspecialchars($parameters['url']) : '';
    $show_title = !empty($parameters['show_title']);
    $show_content = !empty($parameters['show_content']);
    $show_date = !empty($parameters['show_date']);
    $strip_preserve = !empty($parameters['strip_preserve']) ? $parameters['strip_preserve'] : 'br';
    $strip_preserve = preg_match_all('~[A-Za-z0-9]+~', $strip_preserve, $match) ? $match[0] : array();
    $count = !empty($parameters['count']) ? (int) $parameters['count'] : 5;
    $limit = !empty($parameters['limit']) ? (int) $parameters['limit'] : 0;
    // Need a feed name to load it
    if (empty($feed)) {
        echo '
								', $txt['error_sp_invalid_feed'];
        return;
    }
    $rss = array();
    require_once SUBSDIR . '/Package.subs.php';
    $data = fetch_web_data($feed);
    $data_save = $data;
    // Convert it to UTF8 if we can and its not already
    preg_match('~encoding="([^"]*)"~', $data, $charset);
    if (!empty($charset[1]) && $charset != 'UTF-8') {
        // Use iconv if its available
        if (function_exists('iconv')) {
            $data = @iconv($charset[1], 'UTF-8' . '//TRANSLIT//IGNORE', $data);
        }
        // No iconv or a false response from it
        if (!function_exists('iconv') || $data == false) {
            // PHP (some 5.4 versions) mishandles //TRANSLIT//IGNORE and returns false: see https://bugs.php.net/bug.php?id=61484
            if ($data == false) {
                $data = $data_save;
            }
            if (function_exists('mb_convert_encoding')) {
                // Replace unknown characters with a space
                @ini_set('mbstring.substitute_character', '32');
                $data = @mb_convert_encoding($data, 'UTF-8', $charset[1]);
            } elseif (function_exists('recode_string')) {
                $data = @recode_string($charset[1] . '..' . 'UTF-8', $data);
            }
        }
    }
    $data = str_replace(array("\n", "\r", "\t"), '', $data);
    $data = preg_replace('~<\\!\\[CDATA\\[(.+?)\\]\\]>~eu', '\'#cdata_escape_encode#\' . Util::htmlspecialchars(\'$1\')', $data);
    // Find all the feed items
    preg_match_all('~<item>(.+?)</item>~', $data, $items);
    foreach ($items[1] as $item_id => $item) {
        if ($item_id === $count) {
            break;
        }
        preg_match_all('~<([A-Za-z]+)>(.+?)</\\1>~', $item, $match);
        foreach ($match[0] as $tag_id => $dummy) {
            if (Util::strpos($match[2][$tag_id], '#cdata_escape_encode#') === 0) {
                $match[2][$tag_id] = stripslashes(un_htmlspecialchars(Util::substr($match[2][$tag_id], 21)));
            }
            $rss[$item_id][strtolower($match[1][$tag_id])] = un_htmlspecialchars($match[2][$tag_id]);
        }
    }
    // Nothing, say its invalid
    if (empty($rss)) {
        echo '
								', $txt['error_sp_invalid_feed'];
        return;
    }
    // Add all the items to an array
    $items = array();
    foreach ($rss as $item) {
        $item['title'] = isset($item['title']) ? strip_tags($item['title']) : '';
        $item['description'] = isset($item['description']) ? strip_tags($item['description'], empty($strip_preserve) ? '' : '<' . implode('><', $strip_preserve) . '>') : '';
        $items[] = array('title' => $item['title'], 'href' => $item['link'], 'link' => $item['title'] == '' ? '' : ($item['link'] == '' ? $item['title'] : '<a href="' . $item['link'] . '" target="_blank" class="new_win">' . $item['title'] . '</a>'), 'content' => $limit > 0 ? Util::shorten_text($item['description'], $limit, true) : $item['description'], 'date' => !empty($item['pubdate']) ? standardTime(strtotime($item['pubdate']), '%d %B') : '');
    }
    // No items in the feed
    if (empty($items)) {
        echo '
								', $txt['error_sp_invalid_feed'];
        return;
    } else {
        $items[count($items) - 1]['is_last'] = true;
    }
    if ($show_content) {
        echo '
//.........这里部分代码省略.........

 /**
  * Install a smiley set.
  */
 public function action_install()
 {
     global $modSettings, $scripturl, $context, $txt, $user_info;
     isAllowedTo('manage_smileys');
     checkSession('request');
     // One of these two may be necessary
     loadLanguage('Errors');
     loadLanguage('Packages');
     require_once SUBSDIR . '/Smileys.subs.php';
     require_once SUBSDIR . '/Package.subs.php';
     // Installing unless proven otherwise
     $testing = false;
     $destination = '';
     $name = '';
     if (isset($_REQUEST['set_gz'])) {
         $base_name = strtr(basename($_REQUEST['set_gz']), ':/', '-_');
         $name = Util::htmlspecialchars(strtok(basename($_REQUEST['set_gz']), '.'));
         $name_pr = preg_replace(array('/\\s/', '/\\.[\\.]+/', '/[^\\w_\\.\\-]/'), array('_', '.', ''), $name);
         $context['filename'] = $base_name;
         // Check that the smiley is from simplemachines.org, for now... maybe add mirroring later.
         if (!isAuthorizedServer($_REQUEST['set_gz']) == 0) {
             fatal_lang_error('not_valid_server');
         }
         $destination = BOARDDIR . '/packages/' . $base_name;
         if (file_exists($destination)) {
             fatal_lang_error('package_upload_error_exists');
         }
         // Let's copy it to the packages directory
         file_put_contents($destination, fetch_web_data($_REQUEST['set_gz']));
         $testing = true;
     } elseif (isset($_REQUEST['package'])) {
         $base_name = basename($_REQUEST['package']);
         $name = Util::htmlspecialchars(strtok(basename($