PHP yourls_apply_filter函数代码示例

function churl_reachability($churl_reachable, $url, $keyword = '')
{
    global $ydb;
    preg_match('!^[a-zA-Z0-9\\+\\.-]+:(//)?!', $url, $matches);
    $protocol = isset($matches[0]) ? $matches[0] : '';
    $different_protocols = array('http://', 'https://');
    if ($protocol == '') {
        $protocol = 'http://';
        $url = 'http://' . $url;
    }
    $check_url = in_array($protocol, $different_protocols);
    // Return to normal routine if non-http(s) protocol is valid
    if ($check_url == false) {
        return false;
    }
    // Check if the long URL is reachable
    $resURL = curl_init();
    curl_setopt($resURL, CURLOPT_URL, $url);
    curl_setopt($resURL, CURLOPT_BINARYTRANSFER, 1);
    curl_setopt($resURL, CURLOPT_HEADERFUNCTION, 'curlHeaderCallback');
    curl_setopt($resURL, CURLOPT_FAILONERROR, 1);
    curl_exec($resURL);
    $intReturnCode = curl_getinfo($resURL, CURLINFO_HTTP_CODE);
    curl_close($resURL);
    // Return error if the entered URL is unreachable
    if ($intReturnCode == '' || $intReturnCode == 404) {
        $return['status'] = 'fail';
        $return['code'] = 'error:url';
        $return['message'] = 'The entered URL is unreachable.  Check the URL or try again later.';
        $return['statusCode'] = 200;
        // regardless of result, this is still a valid request
        return yourls_apply_filter('add_new_link_fail_unreachable', $return, $url, $keyword, $title);
    }
    return false;
}

/**
 * Init KSES globals if not already defined (by a plugin)
 *
 * @since 1.6
 *
 */
function yourls_kses_init()
{
    global $yourls_allowedentitynames, $yourls_allowedprotocols;
    if (!$yourls_allowedentitynames) {
        $yourls_allowedentitynames = yourls_apply_filter('kses_allowed_entities', yourls_kses_allowed_entities());
    }
    if (!$yourls_allowedprotocols) {
        $yourls_allowedprotocols = yourls_apply_filter('kses_allowed_protocols', yourls_kses_allowed_protocols());
    }
    /** See NOTE ABOUT GLOBALS **
    	
    	if( ! $yourls_allowedtags_all ) {
    		$yourls_allowedtags_all = yourls_kses_allowed_tags_all();
    		$yourls_allowedtags_all = array_map( '_yourls_add_global_attributes', $yourls_allowedtags_all );
    		$yourls_allowedtags_all = yourls_apply_filter( 'kses_allowed_tags_all', $yourls_allowedtags_all );
    	} else {
    		// User defined: let's sanitize
    		$yourls_allowedtags_all = yourls_kses_array_lc( $yourls_allowedtags_all );
    	}
    	
    	if( ! $yourls_allowedtags ) {
    		$yourls_allowedtags = yourls_kses_allowed_tags();
    		$yourls_allowedtags = array_map( '_yourls_add_global_attributes', $yourls_allowedtags );
    		$yourls_allowedtags = yourls_apply_filter( 'kses_allowed_tags', $yourls_allowedtags );
    	} else {
    		// User defined: let's sanitize
    		$yourls_allowedtags = yourls_kses_array_lc( $yourls_allowedtags );
    	}
    
    	/**/
}

/**
 * Return list of all shorturls associated to the same long URL. Returns NULL or array of keywords.
 *
 */
function yourls_get_duplicate_keywords($longurl)
{
    yourls_deprecated_function(__FUNCTION__, '1.7', 'yourls_get_longurl_keywords');
    if (!yourls_allow_duplicate_longurls()) {
        return NULL;
    }
    return yourls_apply_filter('get_duplicate_keywords', yourls_get_longurl_keywords($longurl), $longurl);
}

function fix_long_url($url, $unsafe_url)
{
    $search = array('%2520', '%2521', '%2522', '%2523', '%2524', '%2525', '%2526', '%2527', '%2528', '%2529', '%252A', '%252B', '%252C', '%252D', '%252E', '%252F', '%253A', '%253D', '%253F', '%255C', '%255F');
    $replace = array('%20', '%21', '%22', '%23', '%24', '%25', '%26', '%27', '%28', '%29', '%2A', '%2B', '%2C', '%2D', '%2E', '%2F', '%3A', '%3D', '%3F', '%5C', '%5F');
    $url = str_ireplace($search, $replace, $url);
    // Remove any trailing spaces from the long URL
    while (substr($url, -strlen('%20')) == '%20') {
        $url = preg_replace('/%20$/', '', $url);
    }
    return yourls_apply_filter('after_fix_long_url', $url, $unsafe_url);
}

function allow_aliases()
{
    yourls_do_action('pre_get_request');
    // Ignore protocol & www. prefix
    $root = str_replace(array('https://', 'http://', 'https://www.', 'http://www.'), '', YOURLS_SITE);
    // Use the configured domain instead of $_SERVER['HTTP_HOST']
    $root_host = parse_url(YOURLS_SITE);
    // Case insensitive comparison of the YOURLS root to match both http://Sho.rt/blah and http://sho.rt/blah
    $request = preg_replace("!{$root}/!i", '', $root_host['host'] . $_SERVER['REQUEST_URI'], 1);
    // Unless request looks like a full URL (ie request is a simple keyword) strip query string
    if (!preg_match("@^[a-zA-Z]+://.+@", $request)) {
        $request = current(explode('?', $request));
    }
    return yourls_apply_filter('get_request', $request);
}

function insensitive_get_keyword_infos($keyword, $use_cache = true)
{
    global $ydb;
    $keyword = yourls_sanitize_string($keyword);
    yourls_do_action('pre_get_keyword', $keyword, $use_cache);
    if (isset($ydb->infos[$keyword]) && $use_cache == true) {
        return yourls_apply_filter('get_keyword_infos', $ydb->infos[$keyword], $keyword);
    }
    yourls_do_action('get_keyword_not_cached', $keyword);
    $table = YOURLS_DB_TABLE_URL;
    $infos = $ydb->get_row("SELECT * FROM `{$table}` WHERE LOWER(`keyword`) = LOWER('{$keyword}')");
    if ($infos) {
        $infos = (array) $infos;
        $ydb->infos[$keyword] = $infos;
    } else {
        $ydb->infos[$keyword] = false;
    }
    return yourls_apply_filter('get_keyword_infos', $ydb->infos[$keyword], $keyword);
}

function ozh_yourls_antispam_is_blacklisted($url)
{
    $parsed = parse_url($url);
    if (!isset($parsed['host'])) {
        return yourls_apply_filter('ozh_yourls_antispam_malformed', 'malformed');
    }
    // Remove www. from domain (but not from www.com)
    $parsed['host'] = preg_replace('/^www\\.(.+\\.)/i', '$1', $parsed['host']);
    // Major blacklists. There's a filter if you want to manipulate this.
    $blacklists = yourls_apply_filter('ozh_yourls_antispam_list', array('dbl.spamhaus.org', 'multi.surbl.org', 'black.uribl.com'));
    // Check against each blacklist, exit if blacklisted
    foreach ($blacklists as $blacklist) {
        $domain = $parsed['host'] . '.' . $blacklist . '.';
        $record = @dns_get_record($domain);
        if ($record && count($record) > 0) {
            return yourls_apply_filter('ozh_yourls_antispam_blacklisted', true);
        }
    }
    // All clear, probably not spam
    return yourls_apply_filter('ozh_yourls_antispam_clean', false);
}

/**
 * Send a filerable content type header
 *
 * @since 1.7
 * @param string $type content type ('text/html', 'application/json', ...)
 * @return bool whether header was sent
 */
function yourls_content_type_header($type)
{
    yourls_do_action('content_type_header', $type);
    if (!headers_sent()) {
        $charset = yourls_apply_filter('content_type_header_charset', 'utf-8');
        header("Content-Type: {$type}; charset={$charset}");
        return true;
    }
    return false;
}

/**
* PHP emulation of JS's encodeURI
*
* @link https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/encodeURI
* @param $url
* @return string
*/
function yourls_encodeURI($url)
{
    // Decode URL all the way
    $result = yourls_rawurldecode_while_encoded($url);
    // Encode once
    $result = strtr(rawurlencode($result), array('%3B' => ';', '%2C' => ',', '%2F' => '/', '%3F' => '?', '%3A' => ':', '%40' => '@', '%26' => '&', '%3D' => '=', '%2B' => '+', '%24' => '$', '%21' => '!', '%2A' => '*', '%27' => '\'', '%28' => '(', '%29' => ')', '%23' => '#'));
    // @TODO:
    // Known limit: this will most likely break IDN URLs such as http://www.académie-française.fr/
    // To fully support IDN URLs, advocate use of a plugin.
    return yourls_apply_filter('encodeURI', $result, $url);
}

function yourls_http_user_agent()
{
    return yourls_apply_filter('http_user_agent', 'YOURLS v' . YOURLS_VERSION . ' +http://yourls.org/ (running on ' . YOURLS_SITE . ')');
}

/**
 * Expand short url to long url
 *
 */
function yourls_api_expand($shorturl)
{
    $keyword = str_replace(YOURLS_SITE . '/', '', $shorturl);
    // accept either 'http://ozh.in/abc' or 'abc'
    $keyword = yourls_sanitize_string($keyword);
    $longurl = yourls_get_keyword_longurl($keyword);
    if ($longurl) {
        $return = array('keyword' => $keyword, 'shorturl' => YOURLS_SITE . "/{$keyword}", 'longurl' => $longurl, 'simple' => $longurl, 'message' => 'success', 'statusCode' => 200);
    } else {
        $return = array('keyword' => $keyword, 'simple' => 'not found', 'message' => 'Error: short URL not found', 'errorCode' => 404);
    }
    return yourls_apply_filter('api_expand', $return, $shorturl);
}

    $url = $_REQUEST['url'];
    $keyword = isset($_REQUEST['keyword']) ? $_REQUEST['keyword'] : '';
    $title = isset($_REQUEST['title']) ? $_REQUEST['title'] : '';
    $text = isset($_REQUEST['text']) ? $_REQUEST['text'] : '';
    // Create short URL, receive array $return with various information
    $return = yourls_add_new_link($url, $keyword, $title);
    $shorturl = isset($return['shorturl']) ? $return['shorturl'] : '';
    $message = isset($return['message']) ? $return['message'] : '';
    $title = isset($return['title']) ? $return['title'] : '';
    $status = isset($return['status']) ? $return['status'] : '';
    // Stop here if bookmarklet with a JSON callback function ("instant" bookmarklets)
    if (isset($_GET['jsonp']) && $_GET['jsonp'] == 'yourls') {
        $short = $return['shorturl'] ? $return['shorturl'] : '';
        $message = "Short URL (Ctrl+C to copy)";
        header('Content-type: application/json');
        echo yourls_apply_filter('bookmarklet_jsonp', "yourls_callback({'short_url':'{$short}','message':'{$message}'});");
        die;
    }
}
// Part to be executed if FORM has been submitted
if (isset($_REQUEST['url']) && $_REQUEST['url'] != 'http://') {
    // Display result message of short link creation
    if (isset($message)) {
        echo "<h2><center>{$message}</h2></center>";
    }
    if ($status == 'success') {
        echo "<h3><center>Short: {$shorturl}</h3></center>";
        // Include the Copy box and the Quick Share box
        // yourls_share_box( $url, $shorturl, $title, $text );
        // Initialize clipboard -- requires js/share.js and js/jquery.zclip.min.js to be properly loaded in the <head>
        // echo "<script>init_clipboard();</script>\n";

function muAdminUrl($page = '')
{
    $admin = YOURLS_SITE . '/user/plugins/multi-user/' . $page;
    return yourls_apply_filter('admin_url', $admin, $page);
}

/**
 * Display the admin menu
 *
 */
function yourls_html_menu()
{
    // Build menu links
    if (defined('YOURLS_USER')) {
        $logout_link = yourls_apply_filter('logout_link', sprintf(yourls__('Hello <strong>%s</strong>'), YOURLS_USER) . ' (<a href="?action=logout" title="' . yourls_esc_attr__('Logout') . '">' . yourls__('Logout') . '</a>)');
    } else {
        $logout_link = yourls_apply_filter('logout_link', '');
    }
    $help_link = yourls_apply_filter('help_link', '<a href="' . yourls_site_url(false) . '/readme.html">' . yourls__('Help') . '</a>');
    $admin_links = array();
    $admin_sublinks = array();
    $admin_links['admin'] = array('url' => yourls_admin_url('index.php'), 'title' => yourls__('Go to the admin interface'), 'anchor' => yourls__('Admin interface'));
    if (yourls_is_admin()) {
        $admin_links['tools'] = array('url' => yourls_admin_url('tools.php'), 'anchor' => yourls__('Tools'));
        $admin_links['plugins'] = array('url' => yourls_admin_url('plugins.php'), 'anchor' => yourls__('Manage Plugins'));
        $admin_sublinks['plugins'] = yourls_list_plugin_admin_pages();
    }
    $admin_links = yourls_apply_filter('admin_links', $admin_links);
    $admin_sublinks = yourls_apply_filter('admin_sublinks', $admin_sublinks);
    // Now output menu
    echo '<ul id="admin_menu">' . "\n";
    if (yourls_is_private() && !empty($logout_link)) {
        echo '<li id="admin_menu_logout_link">' . $logout_link . '</li>';
    }
    foreach ((array) $admin_links as $link => $ar) {
        if (isset($ar['url'])) {
            $anchor = isset($ar['anchor']) ? $ar['anchor'] : $link;
            $title = isset($ar['title']) ? 'title="' . $ar['title'] . '"' : '';
            printf('<li id="admin_menu_%s_link" class="admin_menu_toplevel"><a href="%s" %s>%s</a>', $link, $ar['url'], $title, $anchor);
        }
        // Output submenu if any. TODO: clean up, too many code duplicated here
        if (isset($admin_sublinks[$link])) {
            echo "<ul>\n";
            foreach ($admin_sublinks[$link] as $link => $ar) {
                if (isset($ar['url'])) {
                    $anchor = isset($ar['anchor']) ? $ar['anchor'] : $link;
                    $title = isset($ar['title']) ? 'title="' . $ar['title'] . '"' : '';
                    printf('<li id="admin_menu_%s_link" class="admin_menu_sublevel admin_menu_sublevel_%s"><a href="%s" %s>%s</a>', $link, $link, $ar['url'], $title, $anchor);
                }
            }
            echo "</ul>\n";
        }
    }
    if (isset($help_link)) {
        echo '<li id="admin_menu_help_link">' . $help_link . '</li>';
    }
    yourls_do_action('admin_menu');
    echo "</ul>\n";
    yourls_do_action('admin_notices');
    yourls_do_action('admin_notice');
    // because I never remember if it's 'notices' or 'notice'
    /*
    To display a notice:
    $message = "<div>OMG, dude, I mean!</div>" );
    yourls_add_action( 'admin_notices', create_function( '', "echo '$message';" ) );
    */
}

/**
 * Marks a function as deprecated and informs when it has been used. Stolen from WP.
 *
 * There is a hook deprecated_function that will be called that can be used
 * to get the backtrace up to what file and function called the deprecated
 * function.
 *
 * The current behavior is to trigger a user error if YOURLS_DEBUG is true.
 *
 * This function is to be used in every function that is deprecated.
 *
 * @since 1.6
 * @uses yourls_do_action() Calls 'deprecated_function' and passes the function name, what to use instead,
 *   and the version the function was deprecated in.
 * @uses yourls_apply_filter() Calls 'deprecated_function_trigger_error' and expects boolean value of true to do
 *   trigger or false to not trigger error.
 *
 * @param string $function The function that was called
 * @param string $version The version of WordPress that deprecated the function
 * @param string $replacement Optional. The function that should have been called
 */
function yourls_deprecated_function($function, $version, $replacement = null)
{
    yourls_do_action('deprecated_function', $function, $replacement, $version);
    // Allow plugin to filter the output error trigger
    if (YOURLS_DEBUG && yourls_apply_filter('deprecated_function_trigger_error', true)) {
        if (!is_null($replacement)) {
            trigger_error(sprintf(yourls__('%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.'), $function, $version, $replacement));
        } else {
            trigger_error(sprintf(yourls__('%1$s is <strong>deprecated</strong> since version %2$s with no alternative available.'), $function, $version));
        }
    }
}