Fix that fucking encoding problem (#2690)

This commit's changelog - less encode/decode - update jQuery & remove old ones - No encoding in JS - Also, 4 spaces in JS too, duh - IDN domain functions - Use mb_ functions to preverse IDN domains - Support for UTF8MB4 - update install procedure - update upgrade procedure. Note: The log table will be left untouched by the upgrade, it's impossible to make a convenient upgrade script for thousands of rows. The only problem will be if someone uses UTF8 short URLs (eg `http://sho.rt/éé💩`) - Handle normalization of IDN domains & tests - Fix warning on 7.2 and 7.3 - Deal with encoding in bookmarklets - Enclose upgrade queries in a transaction - Force no caching upon install or upgrade. Note: Strange behavior: if YOURLS hosted on an IDN domain, browser (FF at least) caches the redirection from admin/index.php to admin/install.php - Support for IDN YOURLS hosting - Tests for IDN YOURLS hosting - Fix code (that will never get run again) - Don't cache ajax requests - Remove unnecessary function call - Add comment doc block - More IDN sanitizing tests - IDN : Screw the "open dots". Who's going to type domain。com instead of domain.com anyway? Seriously. (although these do pass on my dev box) - Deprecate yourls_lowercase_scheme_domain() - Update doc to reflect DB change
2020-10-10 16:09:36 +02:00 · 2020-10-10 16:09:36 +02:00 · b347c36b33
commit b347c36b33
parent 64c2b93700
48 changed files with 1449 additions and 388 deletions
--- a/.editorconfig
+++ b/.editorconfig
@ -13,7 +13,7 @@ insert_final_newline = true
 trim_trailing_whitespace = false

 [*.js]
-indent_size = 2
+indent_size = 4

 [*.yml]
 indent_size = 2
--- a/admin/admin-ajax.php
+++ b/admin/admin-ajax.php
@ -6,6 +6,7 @@ yourls_maybe_require_auth();

 // This file will output a JSON string
 yourls_content_type_header( 'application/json' );
+yourls_no_cache_headers();

 if( !isset( $_REQUEST['action'] ) )
 	die();
@ -19,7 +20,7 @@ switch( $action ) {
 		$return = yourls_add_new_link( $_REQUEST['url'], $_REQUEST['keyword'] );
 		echo json_encode($return);
 		break;
-		
+
 	case 'edit_display':
 		yourls_verify_nonce( 'edit-link_'.$_REQUEST['id'], $_REQUEST['nonce'], false, 'omg error' );
 		$row = yourls_table_edit_row ( $_REQUEST['keyword'] );
@ -31,18 +32,18 @@ switch( $action ) {
 		$return = yourls_edit_link( $_REQUEST['url'], $_REQUEST['keyword'], $_REQUEST['newkeyword'], $_REQUEST['title'] );
 		echo json_encode($return);
 		break;
-		
+
 	case 'delete':
 		yourls_verify_nonce( 'delete-link_'.$_REQUEST['id'], $_REQUEST['nonce'], false, 'omg error' );
 		$query = yourls_delete_link_by_keyword( $_REQUEST['keyword'] );
 		echo json_encode(array('success'=>$query));
 		break;
-		
+
 	case 'logout':
 		// unused for the moment
 		yourls_logout();
 		break;
-		
+
 	default:
 		yourls_do_action( 'yourls_ajax_'.$action );

--- a/admin/index.php
+++ b/admin/index.php
@ -164,10 +164,10 @@ if ( isset( $_GET['u'] ) or isset( $_GET['up'] ) ) {
 	// No sanitization needed here: everything happens in yourls_add_new_link()
 	if( isset( $_GET['u'] ) ) {
 		// Old school bookmarklet: ?u=<url>
-		$url = rawurldecode( $_GET['u'] );
+		$url = urldecode( $_GET['u'] );
 	} else {
 		// New style bookmarklet: ?up=<url protocol>&us=<url slashes>&ur=<url rest>
-		$url = rawurldecode( $_GET['up'] . $_GET['us'] . $_GET['ur'] );
+		$url = urldecode( $_GET['up'] . $_GET['us'] . $_GET['ur'] );
 	}
 	$keyword = ( isset( $_GET['k'] ) ? ( $_GET['k'] ) : '' );
 	$title   = ( isset( $_GET['t'] ) ? ( $_GET['t'] ) : '' );
@ -176,7 +176,7 @@ if ( isset( $_GET['u'] ) or isset( $_GET['up'] ) ) {
 	// If fails because keyword already exist, retry with no keyword
 	if ( isset( $return['status'] ) && $return['status'] == 'fail' && isset( $return['code'] ) && $return['code'] == 'error:keyword' ) {
 		$msg = $return['message'];
-		$return = yourls_add_new_link( $url, '', $ydb );
+		$return = yourls_add_new_link( $url, '' );
 		$return['message'] .= ' ('.$msg.')';
 	}

--- a/admin/tools.php
+++ b/admin/tools.php
@ -19,7 +19,7 @@ yourls_html_menu();
 		<ul>
 			<li><?php yourls_e( 'The <span>Standard Bookmarklets</span> will take you to a page where you can easily edit or delete your brand new short URL.' ); ?></li>

-			<li><?php yourls_e( 'The <span>Instant Bookmarklets</span> will pop the short URL without leaving the page you are viewing.' ); ?></li>
+			<li><?php yourls_e( 'The <span>Instant Bookmarklets</span> will pop the short URL without leaving the page you are viewing (depending on the page and server configuration, they may silently fail)' ); ?></li>

 			<li><?php yourls_e( 'The <span>Simple Bookmarklets</span> will generate a short URL with a random or sequential keyword.' ); ?></li>

@ -30,6 +30,8 @@ yourls_html_menu();
 		yourls_e( "If you want to share a description along with the link you're shortening, simply <span>select text</span> on the page you're viewing before clicking on your bookmarklet link" );
 		?></p>

+        <p><?php yourls_e( '<strong>Important Note:</strong> bookmarklets <span>may fail</span> on websites with <em>https</em>, especially the "Instant" bookrmarklets. There is nothing you can do about this.'); ?></p>
+
 		<h3><?php yourls_e( 'The Bookmarklets' ); ?></h3>

        <?php $base_bookmarklet = yourls_admin_url( 'index.php' ); ?>
@ -278,8 +280,6 @@ TUMBLR;

 		<?php yourls_do_action( 'social_bookmarklet_buttons_after' ); ?>

-        <p><?php yourls_e( '<strong>Note:</strong> depending on server settings, bookmarklets might fail on websites with <em>https</em>.'); ?></p>
-
 		</p>

 	<h2><?php yourls_e( 'Prefix-n-Shorten' ); ?></h2>
--- a/admin/upgrade.php
+++ b/admin/upgrade.php
@ -28,8 +28,8 @@ if ( !yourls_upgrade_is_needed() ) {

 	// From what are we upgrading?
 	if ( isset( $_GET['oldver'] ) && isset( $_GET['oldsql'] ) ) {
-		$oldver = yourls_sanitize_version( $_GET['oldver'] );
-		$oldsql = yourls_sanitize_version( $_GET['oldsql'] );
+		$oldver = (string)( $_GET['oldver'] );
+		$oldsql = (string)( $_GET['oldsql'] );
 	} else {
 		list( $oldver, $oldsql ) = yourls_get_current_version_from_sql();
 	}
@ -80,7 +80,6 @@ if ( !yourls_upgrade_is_needed() ) {

 }

-
 ?>

 <?php yourls_html_footer(); ?>
--- a/composer.json
+++ b/composer.json
@ -25,7 +25,8 @@
        "geoip2/geoip2" : "2.10.0",
        "aura/sql": "~2.",
        "jakeasmith/http_build_url": "1.0.1",
-        "symfony/polyfill-mbstring": "1.15.0"
+        "symfony/polyfill-mbstring": "1.15.0",
+        "symfony/polyfill-intl-idn": "^1.17"
    },
    "config": {
        "vendor-dir": "includes/vendor"
--- a/composer.lock
+++ b/composer.lock
@ -4,7 +4,7 @@
        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
        "This file is @generated automatically"
    ],
-    "content-hash": "6d9b3e4fa1ffc661d944dd5caf5e6da0",
+    "content-hash": "b0f6e0ea19d5be86af9c8f4ddc92622e",
    "packages": [
        {
            "name": "aura/sql",
@ -501,6 +501,68 @@
            ],
            "time": "2016-10-13T00:11:37+00:00"
        },
+        {
+            "name": "symfony/polyfill-intl-idn",
+            "version": "v1.17.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-intl-idn.git",
+                "reference": "3bff59ea7047e925be6b7f2059d60af31bb46d6a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-intl-idn/zipball/3bff59ea7047e925be6b7f2059d60af31bb46d6a",
+                "reference": "3bff59ea7047e925be6b7f2059d60af31bb46d6a",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3",
+                "symfony/polyfill-mbstring": "^1.3",
+                "symfony/polyfill-php72": "^1.10"
+            },
+            "suggest": {
+                "ext-intl": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.17-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Intl\\Idn\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Laurent Bassin",
+                    "email": "laurent@bassin.info"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "idn",
+                "intl",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2020-05-12T16:47:27+00:00"
+        },
        {
            "name": "symfony/polyfill-mbstring",
            "version": "v1.15.0",
@ -559,6 +621,61 @@
                "shim"
            ],
            "time": "2020-03-09T19:04:49+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php72",
+            "version": "v1.17.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php72.git",
+                "reference": "f048e612a3905f34931127360bdd2def19a5e582"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php72/zipball/f048e612a3905f34931127360bdd2def19a5e582",
+                "reference": "f048e612a3905f34931127360bdd2def19a5e582",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.17-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php72\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2020-05-12T16:47:27+00:00"
        }
    ],
    "packages-dev": [],
--- a/includes/Config/Init.php
+++ b/includes/Config/Init.php
@ -85,14 +85,16 @@ class Init {
        // Check if need to redirect to install procedure
        if ($actions->redirect_to_install === true) {
            if (!yourls_is_installed() && !yourls_is_installing()) {
-                yourls_redirect( yourls_admin_url('install.php'), 302 );
+                yourls_no_cache_headers();
+                yourls_redirect( yourls_admin_url('install.php'), 307 );
            }
        }

        // Check if upgrade is needed (bypassed if upgrading or installing)
        if ($actions->check_if_upgrade_needed === true) {
            if (!yourls_is_upgrading() && !yourls_is_installing() && yourls_upgrade_is_needed()) {
-                yourls_redirect( yourls_admin_url('upgrade.php'), 302 );
+                yourls_no_cache_headers();
+                yourls_redirect( yourls_admin_url('upgrade.php'), 307 );
            }
        }

--- a/includes/class-mysql.php
+++ b/includes/class-mysql.php
@ -30,7 +30,7 @@ function yourls_db_connect() {
        $dbhost = sprintf( '%1$s;port=%2$d', $dbhost, $dbport );
    }

-    $charset = yourls_apply_filter( 'db_connect_charset', 'utf8' );
+    $charset = yourls_apply_filter( 'db_connect_charset', 'utf8mb4' );

    /**
     * Data Source Name (dsn) used to connect the DB
--- a/includes/functions-api.php
+++ b/includes/functions-api.php
@ -212,7 +212,7 @@ function yourls_api_expand( $shorturl ) {
 	if( $longurl ) {
 		$return = array(
 			'keyword'   => $keyword,
-			'shorturl'  => yourls_get_yourls_site() . "/$keyword",
+			'shorturl'  => yourls_link($keyword),
 			'longurl'   => $longurl,
            'title'     => yourls_get_keyword_title( $keyword ),
 			'simple'    => $longurl,
--- a/includes/functions-deprecated.php
+++ b/includes/functions-deprecated.php
@ -35,6 +35,20 @@ function yourls_current_time( $type, $gmt = 0 ) {
 	}
 }

+/**
+ * Lowercase scheme and domain of an URI - see issues 591, 1630, 1889
+ *
+ * Renamed to yourls_normalize_uri() in 1.7.10 because the function now does more than just
+ * lowercasing the scheme and domain.
+ *
+ * @deprecated 1.7.10
+ *
+ */
+function yourls_lowercase_scheme_domain( $url ) {
+    yourls_deprecated_function( __FUNCTION__, '1.7.10', 'yourls_normalize_uri' );
+    return yourls_normalize_uri( $url );
+}
+
 /**
 * The original string sanitize function
 *
--- a/includes/functions-formatting.php
+++ b/includes/functions-formatting.php
@ -56,7 +56,7 @@ function yourls_string2htmlid( $string ) {
 * If we are ADDING or EDITING a short URL, the keyword must comply to the short URL charset: every
 * character that doesn't belong to it will be removed.
 * But otherwise we must have a more conservative approach: we could be checking for a keyword that
- * was once valid but now the short URL charset. In such a case, we are treating the keyword for what
+ * was once valid but now the short URL charset has changed. In such a case, we are treating the keyword for what
 * it is: just a part of a URL, hence sanitize it as a URL.
 *
 * @param  string $keyword                        short URL keyword
@ -495,7 +495,7 @@ function yourls_esc_url( $url, $context = 'display', $protocols = array() ) {
 	$original_url = $url;

 	// force scheme and domain to lowercase - see issues 591 and 1630
-    $url = yourls_lowercase_scheme_domain( $url );
+    $url = yourls_normalize_uri( $url );

 	$url = preg_replace( '|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\[\]\\x80-\\xff]|i', '', $url );
 	// Previous regexp in YOURLS was '|[^a-z0-9-~+_.?\[\]\^#=!&;,/:%@$\|*`\'<>"()\\x80-\\xff\{\}]|i'
@ -534,7 +534,10 @@ function yourls_esc_url( $url, $context = 'display', $protocols = array() ) {


 /**
- * Lowercase scheme and domain of an URI - see issues 591, 1630, 1889
+ * Normalize a URI : lowercase scheme and domain, convert IDN to UTF8
+ *
+ * All in one example: 'HTTP://XN--mgbuq0c.Com/AbCd' -> 'http://طارق.com/AbCd'
+ * See issues 591, 1630, 1889, 2691
 *
 * This function is trickier than what seems to be needed at first
 *
@ -543,13 +546,13 @@ function yourls_esc_url( $url, $context = 'display', $protocols = array() ) {
 * The general rule is that the scheme ("stuff://" or "stuff:") is case insensitive and should be lowercase. But then, depending on the
 * scheme, parts of what follows the scheme may or may not be case sensitive.
 *
- * Second, simply using parse_url() and its opposite http_build_url() (see functions-compat.php) is a pretty unsafe process:
+ * Second, simply using parse_url() and its opposite http_build_url() is a pretty unsafe process:
 *  - parse_url() can easily trip up on malformed or weird URLs
 *  - exploding a URL with parse_url(), lowercasing some stuff, and glueing things back with http_build_url() does not handle well
 *    "stuff:"-like URI [1] and can result in URLs ending modified [2][3]. We don't want to *validate* URI, we just want to lowercase
 *    what is supposed to be lowercased.
 *
- * So, to be conservative, this functions:
+ * So, to be conservative, this function:
 *  - lowercases the scheme
 *  - does not lowercase anything else on "stuff:" URI
 *  - tries to lowercase only scheme and domain of "stuff://" URI
@ -562,7 +565,7 @@ function yourls_esc_url( $url, $context = 'display', $protocols = array() ) {
 * @param string $url URL
 * @return string URL with lowercase scheme and protocol
 */
-function yourls_lowercase_scheme_domain( $url ) {
+function yourls_normalize_uri( $url ) {
    $scheme = yourls_get_protocol( $url );

    if ('' == $scheme) {
@ -596,9 +599,14 @@ function yourls_lowercase_scheme_domain( $url ) {
    $lower = array();
    $lower['scheme'] = strtolower( $parts['scheme'] );
    if( isset( $parts['host'] ) ) {
-        $lower['host'] = strtolower( $parts['host'] );
-    } else {
-        $parts['host'] = '***';
+        // Convert domain to lowercase, with mb_ to preserve UTF8
+        $lower['host'] = mb_strtolower($parts['host']);
+        /**
+         * Convert IDN domains to their UTF8 form so that طارق.net and xn--mgbuq0c.net
+         * are considered the same. Explicitely mention option and variant to avoid notice
+         * on PHP 7.2 and 7.3
+         */
+         $lower['host'] = idn_to_utf8($lower['host'], IDNA_DEFAULT, INTL_IDNA_VARIANT_UTS46);
    }

    $url = http_build_url($url, $lower);
--- a/includes/functions-html.php
+++ b/includes/functions-html.php
@ -58,10 +58,7 @@ function yourls_html_head( $context = 'index', $title = '' ) {

 	// Force no cache for all admin pages
 	if( yourls_is_admin() && !headers_sent() ) {
-		header( 'Expires: Thu, 23 Mar 1972 07:00:00 GMT' );
-		header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' );
-		header( 'Cache-Control: no-cache, must-revalidate, max-age=0' );
-		header( 'Pragma: no-cache' );
+        yourls_no_cache_headers();
 		yourls_content_type_header( yourls_apply_filter( 'html_head_content-type', 'text/html' ) );
 		yourls_do_action( 'admin_headers', $context, $title );
 	}
@ -88,7 +85,7 @@ function yourls_html_head( $context = 'index', $title = '' ) {
 	<meta name="description" content="YOURLS &raquo; Your Own URL Shortener' | <?php yourls_site_url(); ?>" />
 	<?php yourls_do_action('html_head_meta', $context); ?>
 	<link rel="shortcut icon" href="<?php yourls_get_yourls_favicon_url(); ?>" />
-	<script src="<?php yourls_site_url(); ?>/js/jquery-3.3.1.min.js?v=<?php echo YOURLS_VERSION; ?>" type="text/javascript"></script>
+	<script src="<?php yourls_site_url(); ?>/js/jquery-3.5.1.min.js?v=<?php echo YOURLS_VERSION; ?>" type="text/javascript"></script>
 	<script src="<?php yourls_site_url(); ?>/js/common.js?v=<?php echo YOURLS_VERSION; ?>" type="text/javascript"></script>
 	<script src="<?php yourls_site_url(); ?>/js/jquery.notifybar.js?v=<?php echo YOURLS_VERSION; ?>" type="text/javascript"></script>
 	<link rel="stylesheet" href="<?php yourls_site_url(); ?>/css/style.css?v=<?php echo YOURLS_VERSION; ?>" type="text/css" media="screen" />
@ -399,6 +396,9 @@ function yourls_share_box( $longurl, $shorturl, $title = '', $text='', $shortlin
 	if ( false !== $pre )
 		return $pre;

+    // Make sure IDN domains are in their UTF8 form
+    $shorturl = yourls_normalize_uri($shorturl);
+
 	$text   = ( $text ? '"'.$text.'" ' : '' );
 	$title  = ( $title ? "$title " : '' );
 	$share  = yourls_esc_textarea( $title.$text.$shorturl );
@ -488,7 +488,7 @@ function yourls_table_edit_row( $keyword ) {
 	$id = yourls_string2htmlid( $keyword ); // used as HTML #id
 	$url = yourls_get_keyword_longurl( $keyword );
 	$title = htmlspecialchars( yourls_get_keyword_title( $keyword ) );
-	$safe_url = yourls_esc_attr( rawurldecode( $url ) );
+	$safe_url = yourls_esc_attr( $url );
 	$safe_title = yourls_esc_attr( $title );
 	$safe_keyword = yourls_esc_attr( $keyword );

@ -595,7 +595,7 @@ function yourls_table_add_row( $keyword, $url, $title = '', $ip, $clicks, $times
 			'long_url'      => yourls_esc_url( $url ),
 			'title_attr'    => yourls_esc_attr( $title ),
 			'title_html'    => yourls_esc_html( yourls_trim_long_string( $title ) ),
-			'long_url_html' => yourls_esc_html( yourls_trim_long_string( $url ) ),
+			'long_url_html' => yourls_esc_html( yourls_trim_long_string( urldecode( $url ) ) ),
 			'warning'       => $protocol_warning,
 		),
 		'timestamp' => array(
@ -920,23 +920,6 @@ function yourls_new_core_version_notice() {
 	}
 }

-/**
- * 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;
-}
-
 /**
 * Get search text from query string variables search_protocol, search_slashes and search
 *
--- a/includes/functions-install.php
+++ b/includes/functions-install.php
@ -208,39 +208,39 @@ function yourls_create_sql_tables() {
 	// Create Table Query
 	$create_tables = array();
 	$create_tables[YOURLS_DB_TABLE_URL] =
-		'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_URL.'` ('.
-		'`keyword` varchar(200) BINARY NOT NULL,'.
-		'`url` text BINARY NOT NULL,'.
-		'`title` text CHARACTER SET utf8,'.
-		'`timestamp` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,'.
-		'`ip` VARCHAR(41) NOT NULL,'.
-		'`clicks` INT(10) UNSIGNED NOT NULL,'.
-		' PRIMARY KEY  (`keyword`),'.
-		' KEY `timestamp` (`timestamp`),'.
-		' KEY `ip` (`ip`)'.
-		');';
+        'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_URL.'` ('.
+         '`keyword` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL DEFAULT "",'.
+         '`url` text CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL,'.
+         '`title` text COLLATE utf8mb4_unicode_ci DEFAULT NULL,'.
+         '`timestamp` timestamp NOT NULL DEFAULT current_timestamp(),'.
+         '`ip` varchar(41) COLLATE utf8mb4_unicode_ci NOT NULL,'.
+         '`clicks` int(10) unsigned NOT NULL,'.
+         'PRIMARY KEY (`keyword`),'.
+         'KEY `ip` (`ip`),'.
+         'KEY `timestamp` (`timestamp`)'.
+        ') DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;';

 	$create_tables[YOURLS_DB_TABLE_OPTIONS] =
 		'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_OPTIONS.'` ('.
 		'`option_id` bigint(20) unsigned NOT NULL auto_increment,'.
-		'`option_name` varchar(64) NOT NULL default "",'.
-		'`option_value` longtext NOT NULL,'.
+		'`option_name` varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL default "",'.
+		'`option_value` longtext COLLATE utf8mb4_unicode_ci NOT NULL,'.
 		'PRIMARY KEY  (`option_id`,`option_name`),'.
 		'KEY `option_name` (`option_name`)'.
-		') AUTO_INCREMENT=1 ;';
+		') AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;';

 	$create_tables[YOURLS_DB_TABLE_LOG] =
 		'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_LOG.'` ('.
 		'`click_id` int(11) NOT NULL auto_increment,'.
 		'`click_time` datetime NOT NULL,'.
-		'`shorturl` varchar(200) BINARY NOT NULL,'.
+		'`shorturl` varchar(100) BINARY NOT NULL,'.
 		'`referrer` varchar(200) NOT NULL,'.
 		'`user_agent` varchar(255) NOT NULL,'.
 		'`ip_address` varchar(41) NOT NULL,'.
 		'`country_code` char(2) NOT NULL,'.
 		'PRIMARY KEY  (`click_id`),'.
 		'KEY `shorturl` (`shorturl`)'.
-		') AUTO_INCREMENT=1 ;';
+		') AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;';


 	$create_table_count = 0;
--- a/includes/functions-links.php
+++ b/includes/functions-links.php
@ -119,14 +119,26 @@ function yourls_remove_query_arg( $key, $query = false ) {
 }

 /**
- * Converts keyword into short link (prepend with YOURLS base URL)
+ * Converts keyword into short link (prepend with YOURLS base URL) or stat link (sho.rt/abc+)
 *
- * This function does not check for a valid keyword
+ * This function does not check for a valid keyword.
+ * The resulting link is normalized to allow for IDN translation to UTF8
 *
+ * @param  string $keyword  Short URL keyword
+ * @param  bool   $stats    Optional, true to return a stat link (eg sho.rt/abc+)
+ * @return string           Short URL, or keyword stat URL
 */
-function yourls_link( $keyword = '' ) {
+function yourls_link( $keyword = '', $stats = false ) {
    $keyword = yourls_sanitize_keyword($keyword);
-    $link    = yourls_get_yourls_site() . '/' . $keyword;
+    if( $stats  === true ) {
+        $keyword = $keyword . '+';
+    }
+    $link    = yourls_normalize_uri( yourls_get_yourls_site() . '/' . $keyword );
+
+    if( yourls_is_ssl() ) {
+        $link = yourls_set_url_scheme( $link, 'https' );
+    }
+
    return yourls_apply_filter( 'yourls_link', $link, $keyword );
 }

@ -137,13 +149,7 @@ function yourls_link( $keyword = '' ) {
 *
 */
 function yourls_statlink( $keyword = '' ) {
-    $keyword = yourls_sanitize_keyword($keyword);
-    $link    = yourls_get_yourls_site() . '/' . $keyword . '+';
-
-    if( yourls_is_ssl() ) {
-        $link = yourls_set_url_scheme( $link, 'https' );
-    }
-
+    $link = yourls_link( $keyword, true );
    return yourls_apply_filter( 'yourls_statlink', $link, $keyword );
 }

--- a/includes/functions-shorturls.php
+++ b/includes/functions-shorturls.php
@ -31,7 +31,6 @@ function yourls_add_new_link( $url, $keyword = '', $title = '' ) {
    if ( false !== $pre )
        return $pre;

-    $url = yourls_encodeURI( $url );
    $url = yourls_sanitize_url( $url );
    if ( !$url || $url == 'http://' || $url == 'https://' ) {
        $return['status']    = 'fail';
@ -58,7 +57,6 @@ function yourls_add_new_link( $url, $keyword = '', $title = '' ) {

    yourls_do_action( 'pre_add_new_link', $url, $keyword, $title );

-    $strip_url = stripslashes( $url );
    $return = array();

    // duplicates allowed or new URL => store it
@ -87,12 +85,12 @@ function yourls_add_new_link( $url, $keyword = '', $title = '' ) {
            } else {
                // all clear, store !
                yourls_insert_link_in_db( $url, $keyword, $title );
-                $return['url']      = array('keyword' => $keyword, 'url' => $strip_url, 'title' => $title, 'date' => date('Y-m-d H:i:s'), 'ip' => $ip );
+                $return['url']      = array('keyword' => $keyword, 'url' => $url, 'title' => $title, 'date' => date('Y-m-d H:i:s'), 'ip' => $ip );
                $return['status']   = 'success';
-                $return['message']  = /* //translators: eg "http://someurl/ added to DB" */ yourls_s( '%s added to database', yourls_trim_long_string( $strip_url ) );
+                $return['message']  = /* //translators: eg "http://someurl/ added to DB" */ yourls_s( '%s added to database', yourls_trim_long_string( $url ) );
                $return['title']    = $title;
                $return['html']     = yourls_table_add_row( $keyword, $url, $title, $ip, 0, time() );
-                $return['shorturl'] = yourls_get_yourls_site() .'/'. $keyword;
+                $return['shorturl'] = yourls_link($keyword);
            }

        // Create random keyword
@ -109,12 +107,12 @@ function yourls_add_new_link( $url, $keyword = '', $title = '' ) {
                if ( yourls_keyword_is_free($keyword) ) {
                    if (yourls_insert_link_in_db( $url, $keyword, $title )){
                        // everything ok, populate needed vars
-                        $return['url']      = array('keyword' => $keyword, 'url' => $strip_url, 'title' => $title, 'date' => $timestamp, 'ip' => $ip );
+                        $return['url']      = array('keyword' => $keyword, 'url' => $url, 'title' => $title, 'date' => $timestamp, 'ip' => $ip );
                        $return['status']   = 'success';
-                        $return['message']  = /* //translators: eg "http://someurl/ added to DB" */ yourls_s( '%s added to database', yourls_trim_long_string( $strip_url ) );
+                        $return['message']  = /* //translators: eg "http://someurl/ added to DB" */ yourls_s( '%s added to database', yourls_trim_long_string( $url ) );
                        $return['title']    = $title;
                        $return['html']     = yourls_table_add_row( $keyword, $url, $title, $ip, 0, time() );
-                        $return['shorturl'] = yourls_get_yourls_site() .'/'. $keyword;
+                        $return['shorturl'] = yourls_link($keyword);
                    } else {
                        // database error, couldnt store result
                        $return['status']   = 'fail';
@ -135,10 +133,10 @@ function yourls_add_new_link( $url, $keyword = '', $title = '' ) {

        $return['status']   = 'fail';
        $return['code']     = 'error:url';
-        $return['url']      = array( 'keyword' => $url_exists->keyword, 'url' => $strip_url, 'title' => $url_exists->title, 'date' => $url_exists->timestamp, 'ip' => $url_exists->ip, 'clicks' => $url_exists->clicks );
-        $return['message']  = /* //translators: eg "http://someurl/ already exists" */ yourls_s( '%s already exists in database', yourls_trim_long_string( $strip_url ) );
+        $return['url']      = array( 'keyword' => $url_exists->keyword, 'url' => $url, 'title' => $url_exists->title, 'date' => $url_exists->timestamp, 'ip' => $url_exists->ip, 'clicks' => $url_exists->clicks );
+        $return['message']  = /* //translators: eg "http://someurl/ already exists" */ yourls_s( '%s already exists in database', yourls_trim_long_string( $url ) );
        $return['title']    = $url_exists->title;
-        $return['shorturl'] = yourls_get_yourls_site() .'/'. $url_exists->keyword;
+        $return['shorturl'] = yourls_link($url_exists->keyword);
    }

    yourls_do_action( 'post_add_new_link', $url, $keyword, $title, $return );
@ -339,7 +337,7 @@ function yourls_edit_link( $url, $keyword, $newkeyword='', $title='' ) {
            $binds = array('url' => $url, 'newkeyword' => $newkeyword, 'title' => $title, 'keyword' => $keyword);
            $update_url = $ydb->fetchAffected($sql, $binds);
        if( $update_url ) {
-            $return['url']     = array( 'keyword' => $newkeyword, 'shorturl' => yourls_get_yourls_site().'/'.$newkeyword, 'url' => $strip_url, 'display_url' => yourls_trim_long_string( $strip_url ), 'title' => $strip_title, 'display_title' => yourls_trim_long_string( $strip_title ) );
+            $return['url']     = array( 'keyword' => $newkeyword, 'shorturl' => yourls_link($newkeyword), 'url' => $strip_url, 'display_url' => yourls_trim_long_string( $strip_url ), 'title' => $strip_title, 'display_title' => yourls_trim_long_string( $strip_title ) );
            $return['status']  = 'success';
            $return['message'] = yourls__( 'Link updated in database' );
        } else {
@ -563,7 +561,7 @@ function yourls_get_keyword_stats( $shorturl ) {
            'statusCode' => 200,
            'message'    => 'success',
            'link'       => array(
-                'shorturl' => yourls_get_yourls_site() .'/'. $res->keyword,
+                'shorturl' => yourls_link($res->keyword),
                'url'      => $res->url,
                'title'    => $res->title,
                'timestamp'=> $res->timestamp,
--- a/includes/functions-upgrade.php
+++ b/includes/functions-upgrade.php
@ -5,7 +5,10 @@
 *
 */
 function yourls_upgrade( $step, $oldver, $newver, $oldsql, $newsql ) {
-	// special case for 1.3: the upgrade is a multi step procedure
+
+    yourls_maintenance_mode(true);
+
+    // special case for 1.3: the upgrade is a multi step procedure
 	if( $oldsql == 100 ) {
 		yourls_upgrade_to_14( $step );
 	}
@ -25,7 +28,10 @@ function yourls_upgrade( $step, $oldver, $newver, $oldsql, $newsql ) {
 			yourls_upgrade_to_15();

 		if( $oldsql < 482 )
-			yourls_upgrade_482();
+			yourls_upgrade_482(); // that was somewhere 1.5 and 1.5.1 ...
+
+		if( $oldsql < 505 )
+			yourls_upgrade_to_18();

 		yourls_redirect_javascript( yourls_admin_url( "upgrade.php?step=3" ) );

@ -35,10 +41,57 @@ function yourls_upgrade( $step, $oldver, $newver, $oldsql, $newsql ) {
 		// Update options to reflect latest version
 		yourls_update_option( 'version', YOURLS_VERSION );
 		yourls_update_option( 'db_version', YOURLS_DB_VERSION );
+        yourls_maintenance_mode(false);
 		break;
 	}
 }

+/************************** 1.6 -> 1.8 **************************/
+
+function yourls_upgrade_to_18() {
+    $ydb = yourls_get_db();
+    $error_msg = [];
+
+    echo "<p>Updating DB. Please wait...</p>";
+
+    $ydb->beginTransaction();
+
+    $queries = array(
+        'database charset'  => sprintf('ALTER DATABASE %s CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci;', YOURLS_DB_NAME),
+        'options charset'   => sprintf('ALTER TABLE %s CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;', YOURLS_DB_TABLE_OPTIONS),
+        'short URL charset' => sprintf('ALTER TABLE %s CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;', YOURLS_DB_TABLE_URL),
+        'short URL varchar' => sprintf("ALTER TABLE %s CHANGE `keyword` `keyword` VARCHAR(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL DEFAULT '';", YOURLS_DB_TABLE_URL),
+        'short URL type'    => sprintf("ALTER TABLE %s CHANGE `url` `url` TEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL;", YOURLS_DB_TABLE_URL),
+        'short URL type'    => sprintf("ALTER TABLE %s CHANGE `title` `title` TEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci", YOURLS_DB_TABLE_URL),
+    );
+
+    foreach($queries as $what => $query) {
+        try {
+            $ydb->perform($query);
+        } catch (\Exception $e) {
+            $error_msg[] = $e ->getMessage();
+        }
+    }
+
+    $result = $ydb->commit();
+
+    if( $error_msg or $result === false ) {
+        echo "<p class='error'>Unable to update the DB.</p>";
+        echo "<p>You will have to manually fix things, sorry for the inconvenience :(</p>";
+        echo "<p>The errors were:
+        <pre>";
+        foreach( $error_msg as $error ) {
+            echo "$error\n";
+        }
+        echo "</pre>";
+        die();
+    }
+
+    echo "<p class='success'>OK!</p>";
+}
+
+/************************** 1.5 -> 1.6 **************************/
+
 /**
 * Upgrade r482
 *
@ -48,7 +101,7 @@ function yourls_upgrade_482() {
 	global $ydb;
 	$table_url = YOURLS_DB_TABLE_URL;
 	$sql = "ALTER TABLE `$table_url` CHANGE `title` `title` TEXT CHARACTER SET utf8;";
-	$ydb->query( $sql );
+	$ydb->perform( $sql );
 	echo "<p>Updating table structure. Please wait...</p>";
 }

@ -65,10 +118,9 @@ function yourls_upgrade_to_15( ) {
 	echo "<p>Enabling the plugin API. Please wait...</p>";

 	// Alter URL table to store titles
-	global $ydb;
 	$table_url = YOURLS_DB_TABLE_URL;
 	$sql = "ALTER TABLE `$table_url` ADD `title` TEXT AFTER `url`;";
-	$ydb->query( $sql );
+	yourls_get_db()->perform( $sql );
 	echo "<p>Updating table structure. Please wait...</p>";

 	// Update .htaccess
@ -84,7 +136,7 @@ function yourls_upgrade_to_15( ) {
 */
 function yourls_upgrade_to_143( ) {
 	// Check if we have 'keyword' (borked install) or 'shorturl' (ok install)
-	global $ydb;
+	$ydb = yourls_get_db();
 	$table_log = YOURLS_DB_TABLE_LOG;
 	$sql = "SHOW COLUMNS FROM `$table_log`";
 	$cols = $ydb->fetchObjects( $sql );
@ -116,10 +168,9 @@ function yourls_upgrade_to_141( ) {
 *
 */
 function yourls_alter_url_table_to_141() {
-	global $ydb;
 	$table_url = YOURLS_DB_TABLE_URL;
 	$alter = "ALTER TABLE `$table_url` CHANGE `keyword` `keyword` VARCHAR( 200 ) BINARY, CHANGE `url` `url` TEXT BINARY ";
-	$ydb->query( $alter );
+	yourls_get_db()->perform( $alter );
 	echo "<p>Structure of existing tables updated. Please wait...</p>";
 }

@ -172,11 +223,10 @@ function yourls_update_options_to_14() {
 	yourls_update_option( 'db_version', '200' );

 	if( defined('YOURLS_DB_TABLE_NEXTDEC') ) {
-		global $ydb;
 		$table = YOURLS_DB_TABLE_NEXTDEC;
-		$next_id = $ydb->fetchValue("SELECT `next_id` FROM `$table`");
+		$next_id = yourls_get_db()->fetchValue("SELECT `next_id` FROM `$table`");
 		yourls_update_option( 'next_id', $next_id );
-		@$ydb->query( "DROP TABLE `$table`" );
+		yourls_get_db()->perform( "DROP TABLE `$table`" );
 	} else {
 		yourls_update_option( 'next_id', 1 ); // In case someone mistakenly deleted the next_id constant or table too early
 	}
@ -187,7 +237,7 @@ function yourls_update_options_to_14() {
 *
 */
 function yourls_create_tables_for_14() {
-	global $ydb;
+	$ydb = yourls_get_db();

 	$queries = array();

@ -214,7 +264,7 @@ function yourls_create_tables_for_14() {
 		');';

 	foreach( $queries as $query ) {
-		$ydb->query( $query ); // There's no result to be returned to check if table was created (except making another query to check table existence, which we'll avoid)
+		$ydb->perform( $query ); // There's no result to be returned to check if table was created (except making another query to check table existence, which we'll avoid)
 	}

 	echo "<p>New tables created. Please wait...</p>";
@ -226,7 +276,7 @@ function yourls_create_tables_for_14() {
 *
 */
 function yourls_alter_url_table_to_14() {
-	global $ydb;
+	$ydb = yourls_get_db();
 	$table = YOURLS_DB_TABLE_URL;

 	$alters = array();
@ -236,7 +286,7 @@ function yourls_alter_url_table_to_14() {
 	$alters[] = "ALTER TABLE `$table` DROP PRIMARY KEY";

 	foreach ( $alters as $query ) {
-		$ydb->query( $query );
+		$ydb->perform( $query );
 	}

 	echo "<p>Structure of existing tables updated. Please wait...</p>";
@ -247,7 +297,7 @@ function yourls_alter_url_table_to_14() {
 *
 */
 function yourls_alter_url_table_to_14_part_two() {
-	global $ydb;
+	$ydb = yourls_get_db();
 	$table = YOURLS_DB_TABLE_URL;

 	$alters = array();
@ -256,7 +306,7 @@ function yourls_alter_url_table_to_14_part_two() {
 	$alters[] = "ALTER TABLE `$table` ADD INDEX ( `timestamp` )";

 	foreach ( $alters as $query ) {
-		$ydb->query( $query );
+		$ydb->perform( $query );
 	}

 	echo "<p>New table index created</p>";
@ -267,7 +317,7 @@ function yourls_alter_url_table_to_14_part_two() {
 *
 */
 function yourls_update_table_to_14() {
-	global $ydb;
+	$ydb = yourls_get_db();
 	$table = YOURLS_DB_TABLE_URL;

 	// Modify each link to reflect new structure
@ -286,14 +336,7 @@ function yourls_update_table_to_14() {
 		$keyword = $row->keyword;
 		$url = $row->url;
 		$newkeyword = yourls_int2string( $keyword );
-		$ydb->query("UPDATE `$table` SET `keyword` = '$newkeyword' WHERE `url` = '$url';");
-
-        /**
-         * @todo: As of 1.7.3+ when ezSQL is replaced, $ydb->result will no longer exist. This will fail and
-         *        should be replaced with a check for the number of affected rows. This said,
-         *        chances are no one still needs this. Leave it unfixed until someone complains.
-         */
-		if( $ydb->result === true ) {
+		if( true === $ydb->perform("UPDATE `$table` SET `keyword` = '$newkeyword' WHERE `url` = '$url';") ) {
 			$queries++;
 		} else {
 			echo "<p>Huho... Could not update rown with url='$url', from keyword '$keyword' to keyword '$newkeyword'</p>"; // Find what went wrong :/
--- a/includes/functions.php
+++ b/includes/functions.php
@ -143,7 +143,7 @@ function yourls_get_stats( $filter = 'top', $limit = 10, $start = 0 ) {

 		foreach ( (array)$results as $res ) {
 			$return['links']['link_'.$i++] = [
-				'shorturl' => yourls_get_yourls_site() .'/'. $res->keyword,
+				'shorturl' => yourls_link($res->keyword),
 				'url'      => $res->url,
 				'title'    => $res->title,
 				'timestamp'=> $res->timestamp,
@ -275,6 +275,38 @@ function yourls_redirect_shorturl($url, $keyword) {
    yourls_redirect( $url, 301 );
 }

+/**
+ * Send headers to explicitely tell browser not to cache content or redirection
+ *
+ * @since 1.7.10
+ * @return void
+ */
+function yourls_no_cache_headers() {
+    if( !headers_sent() ) {
+        header( 'Expires: Thu, 23 Mar 1972 07:00:00 GMT' );
+        header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' );
+        header( 'Cache-Control: no-cache, must-revalidate, max-age=0' );
+        header( 'Pragma: no-cache' );
+    }
+}
+
+/**
+ * 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;
+}
+
 /**
 * Set HTTP status header
 *
--- a/includes/vendor/composer/autoload_files.php
+++ b/includes/vendor/composer/autoload_files.php
@ -6,6 +6,8 @@ $vendorDir = dirname(dirname(__FILE__));
 $baseDir = dirname(dirname($vendorDir));

 return array(
-    'b45b351e6b6f7487d819961fef2fda77' => $vendorDir . '/jakeasmith/http_build_url/src/http_build_url.php',
    '0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => $vendorDir . '/symfony/polyfill-mbstring/bootstrap.php',
+    '25072dd6e2470089de65ae7bf11d3109' => $vendorDir . '/symfony/polyfill-php72/bootstrap.php',
+    'b45b351e6b6f7487d819961fef2fda77' => $vendorDir . '/jakeasmith/http_build_url/src/http_build_url.php',
+    'f598d06aa772fa33d905e87be6398fb1' => $vendorDir . '/symfony/polyfill-intl-idn/bootstrap.php',
 );
--- a/includes/vendor/composer/autoload_psr4.php
+++ b/includes/vendor/composer/autoload_psr4.php
@ -7,7 +7,9 @@ $baseDir = dirname(dirname($vendorDir));

 return array(
    'YOURLS\\' => array($baseDir . '/includes'),
+    'Symfony\\Polyfill\\Php72\\' => array($vendorDir . '/symfony/polyfill-php72'),
    'Symfony\\Polyfill\\Mbstring\\' => array($vendorDir . '/symfony/polyfill-mbstring'),
+    'Symfony\\Polyfill\\Intl\\Idn\\' => array($vendorDir . '/symfony/polyfill-intl-idn'),
    'POMO\\' => array($vendorDir . '/pomo/pomo/src'),
    'MaxMind\\WebService\\' => array($vendorDir . '/maxmind/web-service-common/src/WebService'),
    'MaxMind\\Exception\\' => array($vendorDir . '/maxmind/web-service-common/src/Exception'),
--- a/includes/vendor/composer/autoload_static.php
+++ b/includes/vendor/composer/autoload_static.php
@ -7,8 +7,10 @@ namespace Composer\Autoload;
 class ComposerStaticInit2d6d15a8f6cc4bfbfd4a2943a6c4df59
 {
    public static $files = array (
-        'b45b351e6b6f7487d819961fef2fda77' => __DIR__ . '/..' . '/jakeasmith/http_build_url/src/http_build_url.php',
        '0e6d7bf4a5811bfa5cf40c5ccd6fae6a' => __DIR__ . '/..' . '/symfony/polyfill-mbstring/bootstrap.php',
+        '25072dd6e2470089de65ae7bf11d3109' => __DIR__ . '/..' . '/symfony/polyfill-php72/bootstrap.php',
+        'b45b351e6b6f7487d819961fef2fda77' => __DIR__ . '/..' . '/jakeasmith/http_build_url/src/http_build_url.php',
+        'f598d06aa772fa33d905e87be6398fb1' => __DIR__ . '/..' . '/symfony/polyfill-intl-idn/bootstrap.php',
    );

    public static $prefixLengthsPsr4 = array (
@ -18,7 +20,9 @@ class ComposerStaticInit2d6d15a8f6cc4bfbfd4a2943a6c4df59
        ),
        'S' => 
        array (
+            'Symfony\\Polyfill\\Php72\\' => 23,
            'Symfony\\Polyfill\\Mbstring\\' => 26,
+            'Symfony\\Polyfill\\Intl\\Idn\\' => 26,
        ),
        'P' => 
        array (
@ -49,10 +53,18 @@ class ComposerStaticInit2d6d15a8f6cc4bfbfd4a2943a6c4df59
        array (
            0 => __DIR__ . '/../../..' . '/includes',
        ),
+        'Symfony\\Polyfill\\Php72\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/symfony/polyfill-php72',
+        ),
        'Symfony\\Polyfill\\Mbstring\\' => 
        array (
            0 => __DIR__ . '/..' . '/symfony/polyfill-mbstring',
        ),
+        'Symfony\\Polyfill\\Intl\\Idn\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/symfony/polyfill-intl-idn',
+        ),
        'POMO\\' => 
        array (
            0 => __DIR__ . '/..' . '/pomo/pomo/src',
--- a/includes/vendor/composer/installed.json
+++ b/includes/vendor/composer/installed.json
@ -514,6 +514,70 @@
            "sockets"
        ]
    },
+    {
+        "name": "symfony/polyfill-intl-idn",
+        "version": "v1.17.0",
+        "version_normalized": "1.17.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/symfony/polyfill-intl-idn.git",
+            "reference": "3bff59ea7047e925be6b7f2059d60af31bb46d6a"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/symfony/polyfill-intl-idn/zipball/3bff59ea7047e925be6b7f2059d60af31bb46d6a",
+            "reference": "3bff59ea7047e925be6b7f2059d60af31bb46d6a",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.3",
+            "symfony/polyfill-mbstring": "^1.3",
+            "symfony/polyfill-php72": "^1.10"
+        },
+        "suggest": {
+            "ext-intl": "For best performance"
+        },
+        "time": "2020-05-12T16:47:27+00:00",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.17-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Symfony\\Polyfill\\Intl\\Idn\\": ""
+            },
+            "files": [
+                "bootstrap.php"
+            ]
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Laurent Bassin",
+                "email": "laurent@bassin.info"
+            },
+            {
+                "name": "Symfony Community",
+                "homepage": "https://symfony.com/contributors"
+            }
+        ],
+        "description": "Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions",
+        "homepage": "https://symfony.com",
+        "keywords": [
+            "compatibility",
+            "idn",
+            "intl",
+            "polyfill",
+            "portable",
+            "shim"
+        ]
+    },
    {
        "name": "symfony/polyfill-mbstring",
        "version": "v1.15.0",
@ -574,5 +638,62 @@
            "portable",
            "shim"
        ]
+    },
+    {
+        "name": "symfony/polyfill-php72",
+        "version": "v1.17.0",
+        "version_normalized": "1.17.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/symfony/polyfill-php72.git",
+            "reference": "f048e612a3905f34931127360bdd2def19a5e582"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/symfony/polyfill-php72/zipball/f048e612a3905f34931127360bdd2def19a5e582",
+            "reference": "f048e612a3905f34931127360bdd2def19a5e582",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.3"
+        },
+        "time": "2020-05-12T16:47:27+00:00",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.17-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Symfony\\Polyfill\\Php72\\": ""
+            },
+            "files": [
+                "bootstrap.php"
+            ]
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Nicolas Grekas",
+                "email": "p@tchwork.com"
+            },
+            {
+                "name": "Symfony Community",
+                "homepage": "https://symfony.com/contributors"
+            }
+        ],
+        "description": "Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions",
+        "homepage": "https://symfony.com",
+        "keywords": [
+            "compatibility",
+            "polyfill",
+            "portable",
+            "shim"
+        ]
    }
 ]
--- a/includes/vendor/symfony/polyfill-intl-idn/Idn.php
+++ b/includes/vendor/symfony/polyfill-intl-idn/Idn.php
@ -0,0 +1,287 @@
+<?php
+
+/*
+ * Copyright (c) 2014 TrueServer B.V.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * Originally forked from
+ * https://github.com/true/php-punycode/blob/v2.1.1/src/Punycode.php
+ */
+
+namespace Symfony\Polyfill\Intl\Idn;
+
+/**
+ * Partial intl implementation in pure PHP.
+ *
+ * Implemented:
+ * - idn_to_ascii - Convert domain name to IDNA ASCII form
+ * - idn_to_utf8  - Convert domain name from IDNA ASCII to Unicode
+ *
+ * @author Renan Gonçalves <renan.saddam@gmail.com>
+ * @author Sebastian Kroczek <sk@xbug.de>
+ * @author Dmitry Lukashin <dmitry@lukashin.ru>
+ * @author Laurent Bassin <laurent@bassin.info>
+ *
+ * @internal
+ */
+final class Idn
+{
+    const INTL_IDNA_VARIANT_2003 = 0;
+    const INTL_IDNA_VARIANT_UTS46 = 1;
+
+    private static $encodeTable = array(
+        'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
+        'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
+        'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+    );
+
+    private static $decodeTable = array(
+        'a' => 0, 'b' => 1, 'c' => 2, 'd' => 3, 'e' => 4, 'f' => 5,
+        'g' => 6, 'h' => 7, 'i' => 8, 'j' => 9, 'k' => 10, 'l' => 11,
+        'm' => 12, 'n' => 13, 'o' => 14, 'p' => 15, 'q' => 16, 'r' => 17,
+        's' => 18, 't' => 19, 'u' => 20, 'v' => 21, 'w' => 22, 'x' => 23,
+        'y' => 24, 'z' => 25, '0' => 26, '1' => 27, '2' => 28, '3' => 29,
+        '4' => 30, '5' => 31, '6' => 32, '7' => 33, '8' => 34, '9' => 35,
+    );
+
+    public static function idn_to_ascii($domain, $options, $variant, &$idna_info = array())
+    {
+        if (\PHP_VERSION_ID >= 70200 && self::INTL_IDNA_VARIANT_2003 === $variant) {
+            @trigger_error('idn_to_ascii(): INTL_IDNA_VARIANT_2003 is deprecated', E_USER_DEPRECATED);
+        }
+
+        if (self::INTL_IDNA_VARIANT_UTS46 === $variant) {
+            $domain = mb_strtolower($domain, 'utf-8');
+        }
+
+        $parts = explode('.', $domain);
+
+        foreach ($parts as $i => &$part) {
+            if ('' === $part && \count($parts) > 1 + $i) {
+                return false;
+            }
+            if (false === $part = self::encodePart($part)) {
+                return false;
+            }
+        }
+
+        $output = implode('.', $parts);
+
+        $idna_info = array(
+            'result' => \strlen($output) > 255 ? false : $output,
+            'isTransitionalDifferent' => false,
+            'errors' => 0,
+        );
+
+        return $idna_info['result'];
+    }
+
+    public static function idn_to_utf8($domain, $options, $variant, &$idna_info = array())
+    {
+        if (\PHP_VERSION_ID >= 70200 && self::INTL_IDNA_VARIANT_2003 === $variant) {
+            @trigger_error('idn_to_utf8(): INTL_IDNA_VARIANT_2003 is deprecated', E_USER_DEPRECATED);
+        }
+
+        $parts = explode('.', $domain);
+
+        foreach ($parts as &$part) {
+            $length = \strlen($part);
+            if ($length < 1 || 63 < $length) {
+                continue;
+            }
+            if (0 !== strpos($part, 'xn--')) {
+                continue;
+            }
+
+            $part = substr($part, 4);
+            $part = self::decodePart($part);
+        }
+
+        $output = implode('.', $parts);
+
+        $idna_info = array(
+            'result' => \strlen($output) > 255 ? false : $output,
+            'isTransitionalDifferent' => false,
+            'errors' => 0,
+        );
+
+        return $idna_info['result'];
+    }
+
+    private static function encodePart($input)
+    {
+        if (\substr($input, 0, 1) === '-' || \substr($input, -1) === '-') {
+            return false;
+        }
+
+        $codePoints = self::listCodePoints($input);
+
+        $n = 128;
+        $bias = 72;
+        $delta = 0;
+        $h = $b = \count($codePoints['basic']);
+
+        $output = '';
+        foreach ($codePoints['basic'] as $code) {
+            $output .= mb_chr($code, 'utf-8');
+        }
+        if ($input === $output) {
+            return $output;
+        }
+        if ($b > 0) {
+            $output .= '-';
+        }
+
+        $codePoints['nonBasic'] = array_unique($codePoints['nonBasic']);
+        sort($codePoints['nonBasic']);
+
+        $i = 0;
+        $length = mb_strlen($input, 'utf-8');
+        while ($h < $length) {
+            $m = $codePoints['nonBasic'][$i++];
+            $delta += ($m - $n) * ($h + 1);
+            $n = $m;
+
+            foreach ($codePoints['all'] as $c) {
+                if ($c < $n || $c < 128) {
+                    ++$delta;
+                }
+                if ($c === $n) {
+                    $q = $delta;
+                    for ($k = 36;; $k += 36) {
+                        $t = self::calculateThreshold($k, $bias);
+                        if ($q < $t) {
+                            break;
+                        }
+
+                        $code = $t + (($q - $t) % (36 - $t));
+                        $output .= self::$encodeTable[$code];
+
+                        $q = ($q - $t) / (36 - $t);
+                    }
+
+                    $output .= self::$encodeTable[$q];
+                    $bias = self::adapt($delta, $h + 1, ($h === $b));
+                    $delta = 0;
+                    ++$h;
+                }
+            }
+
+            ++$delta;
+            ++$n;
+        }
+
+        $output = 'xn--'.$output;
+
+        return \strlen($output) < 1 || 63 < \strlen($output) ? false : strtolower($output);
+    }
+
+    private static function listCodePoints($input)
+    {
+        $codePoints = array(
+            'all' => array(),
+            'basic' => array(),
+            'nonBasic' => array(),
+        );
+
+        $length = mb_strlen($input, 'utf-8');
+        for ($i = 0; $i < $length; ++$i) {
+            $char = mb_substr($input, $i, 1, 'utf-8');
+            $code = mb_ord($char, 'utf-8');
+            if ($code < 128) {
+                $codePoints['all'][] = $codePoints['basic'][] = $code;
+            } else {
+                $codePoints['all'][] = $codePoints['nonBasic'][] = $code;
+            }
+        }
+
+        return $codePoints;
+    }
+
+    private static function calculateThreshold($k, $bias)
+    {
+        if ($k <= $bias + 1) {
+            return 1;
+        }
+        if ($k >= $bias + 26) {
+            return 26;
+        }
+
+        return $k - $bias;
+    }
+
+    private static function adapt($delta, $numPoints, $firstTime)
+    {
+        $delta = (int) ($firstTime ? $delta / 700 : $delta / 2);
+        $delta += (int) ($delta / $numPoints);
+
+        $k = 0;
+        while ($delta > 35 * 13) {
+            $delta = (int) ($delta / 35);
+            $k = $k + 36;
+        }
+
+        return $k + (int) (36 * $delta / ($delta + 38));
+    }
+
+    private static function decodePart($input)
+    {
+        $n = 128;
+        $i = 0;
+        $bias = 72;
+        $output = '';
+
+        $pos = strrpos($input, '-');
+        if (false !== $pos) {
+            $output = substr($input, 0, $pos++);
+        } else {
+            $pos = 0;
+        }
+
+        $outputLength = \strlen($output);
+        $inputLength = \strlen($input);
+
+        while ($pos < $inputLength) {
+            $oldi = $i;
+            $w = 1;
+
+            for ($k = 36;; $k += 36) {
+                $digit = self::$decodeTable[$input[$pos++]];
+                $i += $digit * $w;
+                $t = self::calculateThreshold($k, $bias);
+
+                if ($digit < $t) {
+                    break;
+                }
+
+                $w *= 36 - $t;
+            }
+
+            $bias = self::adapt($i - $oldi, ++$outputLength, 0 === $oldi);
+            $n = $n + (int) ($i / $outputLength);
+            $i = $i % $outputLength;
+            $output = mb_substr($output, 0, $i, 'utf-8').mb_chr($n, 'utf-8').mb_substr($output, $i, $outputLength - 1, 'utf-8');
+
+            ++$i;
+        }
+
+        return $output;
+    }
+}
--- a/includes/vendor/symfony/polyfill-intl-idn/LICENSE
+++ b/includes/vendor/symfony/polyfill-intl-idn/LICENSE
@ -0,0 +1,19 @@
+Copyright (c) 2018-2019 Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
--- a/includes/vendor/symfony/polyfill-intl-idn/README.md
+++ b/includes/vendor/symfony/polyfill-intl-idn/README.md
@ -0,0 +1,12 @@
+Symfony Polyfill / Intl: Idn
+============================
+
+This component provides [`idn_to_ascii`](https://php.net/idn-to-ascii) and [`idn_to_utf8`](https://php.net/idn-to-utf8) functions to users who run php versions without the [Intl](https://php.net/intl) extension.
+
+More information can be found in the
+[main Polyfill README](https://github.com/symfony/polyfill/blob/master/README.md).
+
+License
+=======
+
+This library is released under the [MIT license](LICENSE).
--- a/includes/vendor/symfony/polyfill-intl-idn/bootstrap.php
+++ b/includes/vendor/symfony/polyfill-intl-idn/bootstrap.php
@ -0,0 +1,141 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Symfony\Polyfill\Intl\Idn as p;
+
+if (extension_loaded('intl')) {
+    return;
+}
+
+if (!defined('U_IDNA_PROHIBITED_ERROR')) {
+    define('U_IDNA_PROHIBITED_ERROR', 66560);
+}
+if (!defined('U_IDNA_ERROR_START')) {
+    define('U_IDNA_ERROR_START', 66560);
+}
+if (!defined('U_IDNA_UNASSIGNED_ERROR')) {
+    define('U_IDNA_UNASSIGNED_ERROR', 66561);
+}
+if (!defined('U_IDNA_CHECK_BIDI_ERROR')) {
+    define('U_IDNA_CHECK_BIDI_ERROR', 66562);
+}
+if (!defined('U_IDNA_STD3_ASCII_RULES_ERROR')) {
+    define('U_IDNA_STD3_ASCII_RULES_ERROR', 66563);
+}
+if (!defined('U_IDNA_ACE_PREFIX_ERROR')) {
+    define('U_IDNA_ACE_PREFIX_ERROR', 66564);
+}
+if (!defined('U_IDNA_VERIFICATION_ERROR')) {
+    define('U_IDNA_VERIFICATION_ERROR', 66565);
+}
+if (!defined('U_IDNA_LABEL_TOO_LONG_ERROR')) {
+    define('U_IDNA_LABEL_TOO_LONG_ERROR', 66566);
+}
+if (!defined('U_IDNA_ZERO_LENGTH_LABEL_ERROR')) {
+    define('U_IDNA_ZERO_LENGTH_LABEL_ERROR', 66567);
+}
+if (!defined('U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR')) {
+    define('U_IDNA_DOMAIN_NAME_TOO_LONG_ERROR', 66568);
+}
+if (!defined('U_IDNA_ERROR_LIMIT')) {
+    define('U_IDNA_ERROR_LIMIT', 66569);
+}
+if (!defined('U_STRINGPREP_PROHIBITED_ERROR')) {
+    define('U_STRINGPREP_PROHIBITED_ERROR', 66560);
+}
+if (!defined('U_STRINGPREP_UNASSIGNED_ERROR')) {
+    define('U_STRINGPREP_UNASSIGNED_ERROR', 66561);
+}
+if (!defined('U_STRINGPREP_CHECK_BIDI_ERROR')) {
+    define('U_STRINGPREP_CHECK_BIDI_ERROR', 66562);
+}
+if (!defined('IDNA_DEFAULT')) {
+    define('IDNA_DEFAULT', 0);
+}
+if (!defined('IDNA_ALLOW_UNASSIGNED')) {
+    define('IDNA_ALLOW_UNASSIGNED', 1);
+}
+if (!defined('IDNA_USE_STD3_RULES')) {
+    define('IDNA_USE_STD3_RULES', 2);
+}
+if (!defined('IDNA_CHECK_BIDI')) {
+    define('IDNA_CHECK_BIDI', 4);
+}
+if (!defined('IDNA_CHECK_CONTEXTJ')) {
+    define('IDNA_CHECK_CONTEXTJ', 8);
+}
+if (!defined('IDNA_NONTRANSITIONAL_TO_ASCII')) {
+    define('IDNA_NONTRANSITIONAL_TO_ASCII', 16);
+}
+if (!defined('IDNA_NONTRANSITIONAL_TO_UNICODE')) {
+    define('IDNA_NONTRANSITIONAL_TO_UNICODE', 32);
+}
+if (!defined('INTL_IDNA_VARIANT_2003')) {
+    define('INTL_IDNA_VARIANT_2003', 0);
+}
+if (!defined('INTL_IDNA_VARIANT_UTS46')) {
+    define('INTL_IDNA_VARIANT_UTS46', 1);
+}
+if (!defined('IDNA_ERROR_EMPTY_LABEL')) {
+    define('IDNA_ERROR_EMPTY_LABEL', 1);
+}
+if (!defined('IDNA_ERROR_LABEL_TOO_LONG')) {
+    define('IDNA_ERROR_LABEL_TOO_LONG', 2);
+}
+if (!defined('IDNA_ERROR_DOMAIN_NAME_TOO_LONG')) {
+    define('IDNA_ERROR_DOMAIN_NAME_TOO_LONG', 4);
+}
+if (!defined('IDNA_ERROR_LEADING_HYPHEN')) {
+    define('IDNA_ERROR_LEADING_HYPHEN', 8);
+}
+if (!defined('IDNA_ERROR_TRAILING_HYPHEN')) {
+    define('IDNA_ERROR_TRAILING_HYPHEN', 16);
+}
+if (!defined('IDNA_ERROR_HYPHEN_3_4')) {
+    define('IDNA_ERROR_HYPHEN_3_4', 32);
+}
+if (!defined('IDNA_ERROR_LEADING_COMBINING_MARK')) {
+    define('IDNA_ERROR_LEADING_COMBINING_MARK', 64);
+}
+if (!defined('IDNA_ERROR_DISALLOWED')) {
+    define('IDNA_ERROR_DISALLOWED', 128);
+}
+if (!defined('IDNA_ERROR_PUNYCODE')) {
+    define('IDNA_ERROR_PUNYCODE', 256);
+}
+if (!defined('IDNA_ERROR_LABEL_HAS_DOT')) {
+    define('IDNA_ERROR_LABEL_HAS_DOT', 512);
+}
+if (!defined('IDNA_ERROR_INVALID_ACE_LABEL')) {
+    define('IDNA_ERROR_INVALID_ACE_LABEL', 1024);
+}
+if (!defined('IDNA_ERROR_BIDI')) {
+    define('IDNA_ERROR_BIDI', 2048);
+}
+if (!defined('IDNA_ERROR_CONTEXTJ')) {
+    define('IDNA_ERROR_CONTEXTJ', 4096);
+}
+
+if (PHP_VERSION_ID < 70400) {
+    if (!function_exists('idn_to_ascii')) {
+        function idn_to_ascii($domain, $options = IDNA_DEFAULT, $variant = INTL_IDNA_VARIANT_2003, &$idna_info = array()) { return p\Idn::idn_to_ascii($domain, $options, $variant, $idna_info); }
+    }
+    if (!function_exists('idn_to_utf8')) {
+        function idn_to_utf8($domain, $options = IDNA_DEFAULT, $variant = INTL_IDNA_VARIANT_2003, &$idna_info = array()) { return p\Idn::idn_to_utf8($domain, $options, $variant, $idna_info); }
+    }
+} else {
+    if (!function_exists('idn_to_ascii')) {
+        function idn_to_ascii($domain, $options = IDNA_DEFAULT, $variant = INTL_IDNA_VARIANT_UTS46, &$idna_info = array()) { return p\Idn::idn_to_ascii($domain, $options, $variant, $idna_info); }
+    }
+    if (!function_exists('idn_to_utf8')) {
+        function idn_to_utf8($domain, $options = IDNA_DEFAULT, $variant = INTL_IDNA_VARIANT_UTS46, &$idna_info = array()) { return p\Idn::idn_to_utf8($domain, $options, $variant, $idna_info); }
+    }
+}
--- a/includes/vendor/symfony/polyfill-intl-idn/composer.json
+++ b/includes/vendor/symfony/polyfill-intl-idn/composer.json
@ -0,0 +1,36 @@
+{
+    "name": "symfony/polyfill-intl-idn",
+    "type": "library",
+    "description": "Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions",
+    "keywords": ["polyfill", "shim", "compatibility", "portable", "intl", "idn"],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Laurent Bassin",
+            "email": "laurent@bassin.info"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.3",
+        "symfony/polyfill-mbstring": "^1.3",
+        "symfony/polyfill-php72": "^1.10"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Polyfill\\Intl\\Idn\\": "" },
+        "files": [ "bootstrap.php" ]
+    },
+    "suggest": {
+        "ext-intl": "For best performance"
+    },
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.17-dev"
+        }
+    }
+}
--- a/includes/vendor/symfony/polyfill-php72/LICENSE
+++ b/includes/vendor/symfony/polyfill-php72/LICENSE
@ -0,0 +1,19 @@
+Copyright (c) 2015-2019 Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
--- a/includes/vendor/symfony/polyfill-php72/Php72.php
+++ b/includes/vendor/symfony/polyfill-php72/Php72.php
@ -0,0 +1,217 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Polyfill\Php72;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ * @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
+ *
+ * @internal
+ */
+final class Php72
+{
+    private static $hashMask;
+
+    public static function utf8_encode($s)
+    {
+        $s .= $s;
+        $len = \strlen($s);
+
+        for ($i = $len >> 1, $j = 0; $i < $len; ++$i, ++$j) {
+            switch (true) {
+                case $s[$i] < "\x80": $s[$j] = $s[$i]; break;
+                case $s[$i] < "\xC0": $s[$j] = "\xC2"; $s[++$j] = $s[$i]; break;
+                default: $s[$j] = "\xC3"; $s[++$j] = \chr(\ord($s[$i]) - 64); break;
+            }
+        }
+
+        return substr($s, 0, $j);
+    }
+
+    public static function utf8_decode($s)
+    {
+        $s = (string) $s;
+        $len = \strlen($s);
+
+        for ($i = 0, $j = 0; $i < $len; ++$i, ++$j) {
+            switch ($s[$i] & "\xF0") {
+                case "\xC0":
+                case "\xD0":
+                    $c = (\ord($s[$i] & "\x1F") << 6) | \ord($s[++$i] & "\x3F");
+                    $s[$j] = $c < 256 ? \chr($c) : '?';
+                    break;
+
+                case "\xF0":
+                    ++$i;
+                    // no break
+
+                case "\xE0":
+                    $s[$j] = '?';
+                    $i += 2;
+                    break;
+
+                default:
+                    $s[$j] = $s[$i];
+            }
+        }
+
+        return substr($s, 0, $j);
+    }
+
+    public static function php_os_family()
+    {
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            return 'Windows';
+        }
+
+        $map = array(
+            'Darwin' => 'Darwin',
+            'DragonFly' => 'BSD',
+            'FreeBSD' => 'BSD',
+            'NetBSD' => 'BSD',
+            'OpenBSD' => 'BSD',
+            'Linux' => 'Linux',
+            'SunOS' => 'Solaris',
+        );
+
+        return isset($map[PHP_OS]) ? $map[PHP_OS] : 'Unknown';
+    }
+
+    public static function spl_object_id($object)
+    {
+        if (null === self::$hashMask) {
+            self::initHashMask();
+        }
+        if (null === $hash = spl_object_hash($object)) {
+            return;
+        }
+
+        // On 32-bit systems, PHP_INT_SIZE is 4,
+        return self::$hashMask ^ hexdec(substr($hash, 16 - (\PHP_INT_SIZE * 2 - 1), (\PHP_INT_SIZE * 2 - 1)));
+    }
+
+    public static function sapi_windows_vt100_support($stream, $enable = null)
+    {
+        if (!\is_resource($stream)) {
+            trigger_error('sapi_windows_vt100_support() expects parameter 1 to be resource, '.\gettype($stream).' given', E_USER_WARNING);
+
+            return false;
+        }
+
+        $meta = stream_get_meta_data($stream);
+
+        if ('STDIO' !== $meta['stream_type']) {
+            trigger_error('sapi_windows_vt100_support() was not able to analyze the specified stream', E_USER_WARNING);
+
+            return false;
+        }
+
+        // We cannot actually disable vt100 support if it is set
+        if (false === $enable || !self::stream_isatty($stream)) {
+            return false;
+        }
+
+        // The native function does not apply to stdin
+        $meta = array_map('strtolower', $meta);
+        $stdin = 'php://stdin' === $meta['uri'] || 'php://fd/0' === $meta['uri'];
+
+        return !$stdin
+            && (false !== getenv('ANSICON')
+            || 'ON' === getenv('ConEmuANSI')
+            || 'xterm' === getenv('TERM')
+            || 'Hyper' === getenv('TERM_PROGRAM'));
+    }
+
+    public static function stream_isatty($stream)
+    {
+        if (!\is_resource($stream)) {
+            trigger_error('stream_isatty() expects parameter 1 to be resource, '.\gettype($stream).' given', E_USER_WARNING);
+
+            return false;
+        }
+
+        if ('\\' === \DIRECTORY_SEPARATOR) {
+            $stat = @fstat($stream);
+            // Check if formatted mode is S_IFCHR
+            return $stat ? 0020000 === ($stat['mode'] & 0170000) : false;
+        }
+
+        return \function_exists('posix_isatty') && @posix_isatty($stream);
+    }
+
+    private static function initHashMask()
+    {
+        $obj = (object) array();
+        self::$hashMask = -1;
+
+        // check if we are nested in an output buffering handler to prevent a fatal error with ob_start() below
+        $obFuncs = array('ob_clean', 'ob_end_clean', 'ob_flush', 'ob_end_flush', 'ob_get_contents', 'ob_get_flush');
+        foreach (debug_backtrace(\PHP_VERSION_ID >= 50400 ? DEBUG_BACKTRACE_IGNORE_ARGS : false) as $frame) {
+            if (isset($frame['function'][0]) && !isset($frame['class']) && 'o' === $frame['function'][0] && \in_array($frame['function'], $obFuncs)) {
+                $frame['line'] = 0;
+                break;
+            }
+        }
+        if (!empty($frame['line'])) {
+            ob_start();
+            debug_zval_dump($obj);
+            self::$hashMask = (int) substr(ob_get_clean(), 17);
+        }
+
+        self::$hashMask ^= hexdec(substr(spl_object_hash($obj), 16 - (\PHP_INT_SIZE * 2 - 1), (\PHP_INT_SIZE * 2 - 1)));
+    }
+
+    public static function mb_chr($code, $encoding = null)
+    {
+        if (0x80 > $code %= 0x200000) {
+            $s = \chr($code);
+        } elseif (0x800 > $code) {
+            $s = \chr(0xC0 | $code >> 6).\chr(0x80 | $code & 0x3F);
+        } elseif (0x10000 > $code) {
+            $s = \chr(0xE0 | $code >> 12).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
+        } else {
+            $s = \chr(0xF0 | $code >> 18).\chr(0x80 | $code >> 12 & 0x3F).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
+        }
+
+        if ('UTF-8' !== $encoding) {
+            $s = mb_convert_encoding($s, $encoding, 'UTF-8');
+        }
+
+        return $s;
+    }
+
+    public static function mb_ord($s, $encoding = null)
+    {
+        if (null == $encoding) {
+            $s = mb_convert_encoding($s, 'UTF-8');
+        } elseif ('UTF-8' !== $encoding) {
+            $s = mb_convert_encoding($s, 'UTF-8', $encoding);
+        }
+
+        if (1 === \strlen($s)) {
+            return \ord($s);
+        }
+
+        $code = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0;
+        if (0xF0 <= $code) {
+            return (($code - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80;
+        }
+        if (0xE0 <= $code) {
+            return (($code - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80;
+        }
+        if (0xC0 <= $code) {
+            return (($code - 0xC0) << 6) + $s[2] - 0x80;
+        }
+
+        return $code;
+    }
+}
--- a/includes/vendor/symfony/polyfill-php72/README.md
+++ b/includes/vendor/symfony/polyfill-php72/README.md
@ -0,0 +1,28 @@
+Symfony Polyfill / Php72
+========================
+
+This component provides functions added to PHP 7.2 core:
+
+- [`spl_object_id`](https://php.net/spl_object_id)
+- [`stream_isatty`](https://php.net/stream_isatty)
+
+On Windows only:
+
+- [`sapi_windows_vt100_support`](https://php.net/sapi_windows_vt100_support)
+
+Moved to core since 7.2 (was in the optional XML extension earlier):
+
+- [`utf8_encode`](https://php.net/utf8_encode)
+- [`utf8_decode`](https://php.net/utf8_decode)
+
+Also, it provides constants added to PHP 7.2:
+- [`PHP_FLOAT_*`](https://php.net/reserved.constants#constant.php-float-dig)
+- [`PHP_OS_FAMILY`](https://php.net/reserved.constants#constant.php-os-family)
+
+More information can be found in the
+[main Polyfill README](https://github.com/symfony/polyfill/blob/master/README.md).
+
+License
+=======
+
+This library is released under the [MIT license](LICENSE).
--- a/includes/vendor/symfony/polyfill-php72/bootstrap.php
+++ b/includes/vendor/symfony/polyfill-php72/bootstrap.php
@ -0,0 +1,57 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Symfony\Polyfill\Php72 as p;
+
+if (PHP_VERSION_ID >= 70200) {
+    return;
+}
+
+if (!defined('PHP_FLOAT_DIG')) {
+    define('PHP_FLOAT_DIG', 15);
+}
+if (!defined('PHP_FLOAT_EPSILON')) {
+    define('PHP_FLOAT_EPSILON', 2.2204460492503E-16);
+}
+if (!defined('PHP_FLOAT_MIN')) {
+    define('PHP_FLOAT_MIN', 2.2250738585072E-308);
+}
+if (!defined('PHP_FLOAT_MAX')) {
+    define('PHP_FLOAT_MAX', 1.7976931348623157E+308);
+}
+if (!defined('PHP_OS_FAMILY')) {
+    define('PHP_OS_FAMILY', p\Php72::php_os_family());
+}
+
+if ('\\' === DIRECTORY_SEPARATOR && !function_exists('sapi_windows_vt100_support')) {
+    function sapi_windows_vt100_support($stream, $enable = null) { return p\Php72::sapi_windows_vt100_support($stream, $enable); }
+}
+if (!function_exists('stream_isatty')) {
+    function stream_isatty($stream) { return p\Php72::stream_isatty($stream); }
+}
+if (!function_exists('utf8_encode')) {
+    function utf8_encode($s) { return p\Php72::utf8_encode($s); }
+}
+if (!function_exists('utf8_decode')) {
+    function utf8_decode($s) { return p\Php72::utf8_decode($s); }
+}
+if (!function_exists('spl_object_id')) {
+    function spl_object_id($s) { return p\Php72::spl_object_id($s); }
+}
+if (!function_exists('mb_ord')) {
+    function mb_ord($s, $enc = null) { return p\Php72::mb_ord($s, $enc); }
+}
+if (!function_exists('mb_chr')) {
+    function mb_chr($code, $enc = null) { return p\Php72::mb_chr($code, $enc); }
+}
+if (!function_exists('mb_scrub')) {
+    function mb_scrub($s, $enc = null) { $enc = null === $enc ? mb_internal_encoding() : $enc; return mb_convert_encoding($s, $enc, $enc); }
+}
--- a/includes/vendor/symfony/polyfill-php72/composer.json
+++ b/includes/vendor/symfony/polyfill-php72/composer.json
@ -0,0 +1,31 @@
+{
+    "name": "symfony/polyfill-php72",
+    "type": "library",
+    "description": "Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions",
+    "keywords": ["polyfill", "shim", "compatibility", "portable"],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Nicolas Grekas",
+            "email": "p@tchwork.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.3"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Polyfill\\Php72\\": "" },
+        "files": [ "bootstrap.php" ]
+    },
+    "minimum-stability": "dev",
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.17-dev"
+        }
+    }
+}
--- a/includes/version.php
+++ b/includes/version.php
@ -9,4 +9,4 @@ define( 'YOURLS_VERSION', '1.7.10' );
 * YOURLS DB version. Increments when changes are made to the DB schema, to trigger a DB update
 *
 */
-define( 'YOURLS_DB_VERSION', '482' );
+define( 'YOURLS_DB_VERSION', '505' );
--- a/js/insert.js
+++ b/js/insert.js
@ -5,18 +5,18 @@ $(document).ready(function(){
 	});
 	add_link_reset();
 	$('#new_url_form').attr('action', 'javascript:add_link();');
-	
+
 	$('input.text').focus(function(){
 		$(this).select();
 	});
-	
+
 	// this one actually has little impact, the .hasClass('disabled') in each edit_link_display(), remove() etc... fires faster
 	$(document).on( 'click', 'a.button', function() {
 		if( $(this).hasClass('disabled') ) {
 			return false;
 		}
 	});
-	
+
 	// When Searching, explode search text in pieces -- see split_search_text_before_search()
 	$('#filter_form').submit( function(){
 		split_search_text_before_search();
@ -127,6 +127,7 @@ function go_stats(link) {
 // Cancel edition of a link
 function edit_link_hide(id) {
 	$("#edit-" + id).fadeOut(200, function(){
+        $("#edit-" + id).remove();
 		end_disable('#actions-'+id+' .button');
 	});
 }
@ -134,7 +135,7 @@ function edit_link_hide(id) {
 // Save edition of a link
 function edit_link_save(id) {
 	add_loading("#edit-close-" + id);
-	var newurl = encodeURI( $("#edit-url-" + id).val() );
+	var newurl = $("#edit-url-" + id).val();
 	var newkeyword = $("#edit-keyword-" + id).val();
 	var title = $("#edit-title-" + id).val();
 	var keyword = $('#old_keyword_'+id).val();
@ -145,7 +146,7 @@ function edit_link_save(id) {
 		{action:'edit_save', url: newurl, id: id, keyword: keyword, newkeyword: newkeyword, title: title, nonce: nonce },
 		function(data){
 			if(data.status == 'success') {
-			
+
 				if( data.url.title != '' ) {
 					var display_link = '<a href="' + data.url.url + '" title="' + data.url.title + '">' + data.url.display_title + '</a><br/><small><a href="' + data.url.url + '">' + data.url.display_url + '</a></small>';
 				} else {
@ -155,6 +156,7 @@ function edit_link_save(id) {
 				$("#url-" + id).html(display_link);
 				$("#keyword-" + id).html('<a href="' + data.url.shorturl + '" title="' + data.url.shorturl + '">' + data.url.keyword + '</a>');
 				$("#edit-" + id).fadeOut(200, function(){
+                    $("#edit-" + id).remove();
 					$('#main_table tbody').trigger("update");
 				});
 				$('#keyword_'+id).val( newkeyword );
@ -212,7 +214,7 @@ function toggle_share(id) {
 	var longurl = link.attr('href');
 	var title = link.attr('title');
 	var shorturl = $('#keyword-'+id+' a:first').attr('href');
-	
+
 	toggle_share_fill_boxes( longurl, shorturl, title );
 }

--- a/js/jquery-1.3.2.min.js
+++ b/js/jquery-1.3.2.min.js
--- a/js/jquery-1.4.3.min.js
+++ b/js/jquery-1.4.3.min.js
@ -1,166 +0,0 @@
-/*!
- * jQuery JavaScript Library v1.4.3
- * http://jquery.com/
- *
- * Copyright 2010, John Resig
- * Dual licensed under the MIT or GPL Version 2 licenses.
- * http://jquery.org/license
- *
- * Includes Sizzle.js
- * http://sizzlejs.com/
- * Copyright 2010, The Dojo Foundation
- * Released under the MIT, BSD, and GPL Licenses.
- *
- * Date: Thu Oct 14 23:10:06 2010 -0400
- */
-(function(E,A){function U(){return false}function ba(){return true}function ja(a,b,d){d[0].type=a;return c.event.handle.apply(b,d)}function Ga(a){var b,d,e=[],f=[],h,k,l,n,s,v,B,D;k=c.data(this,this.nodeType?"events":"__events__");if(typeof k==="function")k=k.events;if(!(a.liveFired===this||!k||!k.live||a.button&&a.type==="click")){if(a.namespace)D=RegExp("(^|\\.)"+a.namespace.split(".").join("\\.(?:.*\\.)?")+"(\\.|$)");a.liveFired=this;var H=k.live.slice(0);for(n=0;n<H.length;n++){k=H[n];k.origType.replace(X,
-"")===a.type?f.push(k.selector):H.splice(n--,1)}f=c(a.target).closest(f,a.currentTarget);s=0;for(v=f.length;s<v;s++){B=f[s];for(n=0;n<H.length;n++){k=H[n];if(B.selector===k.selector&&(!D||D.test(k.namespace))){l=B.elem;h=null;if(k.preType==="mouseenter"||k.preType==="mouseleave"){a.type=k.preType;h=c(a.relatedTarget).closest(k.selector)[0]}if(!h||h!==l)e.push({elem:l,handleObj:k,level:B.level})}}}s=0;for(v=e.length;s<v;s++){f=e[s];if(d&&f.level>d)break;a.currentTarget=f.elem;a.data=f.handleObj.data;
-a.handleObj=f.handleObj;D=f.handleObj.origHandler.apply(f.elem,arguments);if(D===false||a.isPropagationStopped()){d=f.level;if(D===false)b=false}}return b}}function Y(a,b){return(a&&a!=="*"?a+".":"")+b.replace(Ha,"`").replace(Ia,"&")}function ka(a,b,d){if(c.isFunction(b))return c.grep(a,function(f,h){return!!b.call(f,h,f)===d});else if(b.nodeType)return c.grep(a,function(f){return f===b===d});else if(typeof b==="string"){var e=c.grep(a,function(f){return f.nodeType===1});if(Ja.test(b))return c.filter(b,
-e,!d);else b=c.filter(b,e)}return c.grep(a,function(f){return c.inArray(f,b)>=0===d})}function la(a,b){var d=0;b.each(function(){if(this.nodeName===(a[d]&&a[d].nodeName)){var e=c.data(a[d++]),f=c.data(this,e);if(e=e&&e.events){delete f.handle;f.events={};for(var h in e)for(var k in e[h])c.event.add(this,h,e[h][k],e[h][k].data)}}})}function Ka(a,b){b.src?c.ajax({url:b.src,async:false,dataType:"script"}):c.globalEval(b.text||b.textContent||b.innerHTML||"");b.parentNode&&b.parentNode.removeChild(b)}
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-height:"1px",visibility:"hidden"});b.innerHTML="<div style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;'><div></div></div><table style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;' cellpadding='0' cellspacing='0'><tr><td></td></tr></table>";a.insertBefore(b,a.firstChild);d=b.firstChild;e=d.firstChild;f=d.nextSibling.firstChild.firstChild;this.doesNotAddBorder=e.offsetTop!==5;this.doesAddBorderForTableAndCells=
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--- a/js/jquery-1.6.1.min.js
+++ b/js/jquery-1.6.1.min.js
--- a/js/jquery-1.8.2.min.js
+++ b/js/jquery-1.8.2.min.js
--- a/js/jquery-1.9.1.min.js
+++ b/js/jquery-1.9.1.min.js
--- a/js/jquery-2.2.4.min.js
+++ b/js/jquery-2.2.4.min.js
--- a/js/jquery-3.3.1.min.js
+++ b/js/jquery-3.3.1.min.js
--- a/js/jquery-3.5.1.min.js
+++ b/js/jquery-3.5.1.min.js
--- a/readme.html
+++ b/readme.html
@ -554,8 +554,8 @@ echo $data->longurl;</tt></pre>

 			<a class="anch" href="#FAQ;limitations"><span>&#10148;</span><h3 id="limitations">Limitations</h3></a>
 			<ul>
-				<li>Maximum length of custom keyword is <strong>200 characters</strong></li>
-				<li>That makes about <strong>8 sexdecillions of centillions</strong> of available URLs (<a href="http://en.wikipedia.org/wiki/Names_of_large_numbers">seriously</a>. That's a 355-digit number). </li>
+				<li>Maximum length of custom keyword is <strong>100 characters</strong></li>
+				<li>That makes <strong>several septillions of quinquagintillion</strong> of possible short URLs (<a href="http://en.wikipedia.org/wiki/Names_of_large_numbers">seriously</a>. That's a 180-digit number). </li>
 			</ul>

 			<a class="anch" href="#FAQ;base3662"><span>&#10148;</span><h3 id="base3662">Difference Between Base 36 And Base 62 Encoding</h3></a>
--- a/tests/tests/format/urls.php
+++ b/tests/tests/format/urls.php
@ -5,6 +5,7 @@
 *
 * @group formatting
 * @group url
+ * @group idn
 * @since 0.1
 */
 class Format_URL extends PHPUnit_Framework_TestCase {
@ -80,6 +81,9 @@ class Format_URL extends PHPUnit_Framework_TestCase {
            array( '/absolute' ),
            array( '/Absolute/Path/' ),
            array( '/absolute/path/?omg#also' ),
+            array( 'http://académie-française.fr' ),
+            array( 'http://www.طارق.net/طارق?hello=%2B' ),
+            array( 'http://%d8%b7%d8%a7%d8%b1%d9%82.net/' ), // this is طارق.net, encoded. I _think_ it qualifies as valid
        );
    }

@ -170,7 +174,8 @@ class Format_URL extends PHPUnit_Framework_TestCase {
            array( 'http://Ozh:Password@example.com:1337#OMG'         , 'http://Ozh:Password@Example.COM:1337#OMG' ),
            array( 'http://User:PWd@example.com?User:PWd@Example.com' , 'http://User:PWd@Example.com?User:PWd@Example.com' ),
            array( 'mailto:Ozh@Ozh.org?omg'                           , 'MAILTO:Ozh@Ozh.org?omg' ),
-            array( 'OMg'                                              , 'OMg' ),
+            array( 'http://www.طارق.net/'                             , 'http://www.طارق.Net/' ),
+            array( 'http://académie-française.fr'                     , 'http://Académie-française.FR' ),
        );
    }

@ -184,6 +189,29 @@ class Format_URL extends PHPUnit_Framework_TestCase {
 		$this->assertEquals( $sanitized, yourls_sanitize_url( $unsanitized ) );
 	}

+    /**
+     * List of URLs with IDN domain, and how YOURLS should sanitize them
+     */
+    function list_of_IDN() {
+        return array(
+            array( 'http://www.طارق.Net/Omgطارق'                  , 'http://www.طارق.net/Omgطارق' ),
+            array( 'http://xn--mgbuq0c.Net/Omgطارق'               , 'http://طارق.net/Omgطارق' ),
+            array( 'http://%d8%b7%d8%a7%d8%b1%d9%82.Net/Omgطارق'  , 'http://%d8%b7%d8%a7%d8%b1%d9%82.net/Omgطارق' ), // طارق.net, urlencoded
+            array( 'http://xn--p1ai.РФ'                           , 'http://рф.рф' ), // lowercasing where applicable: РФ -> рф
+            array( 'http://РФ.xn--p1ai/'                          , 'http://рф.рф/' ),
+            array( 'http://xn--p1ai.xn--p1ai'                     , 'http://рф.рф' ),
+        );
+    }
+
+	/**
+	 * Protocol and domain with mixed case
+	 *
+     * @dataProvider list_of_IDN
+	 */
+	function test_url_with_IDN( $unsanitized, $sanitized ) {
+		$this->assertEquals( $sanitized, yourls_sanitize_url( $unsanitized ) );
+	}
+
    /**
     * List of URLS and expected matches whether we're on SSL or not.
     * Structure: array(original URL, expected URL if we're on HTTP, expected URL if we're on HTTPS)
@ -226,13 +254,42 @@ class Format_URL extends PHPUnit_Framework_TestCase {
        $this->assertEquals( $with_ssl, yourls_match_current_protocol($url) );
    }

-	/*
-	More stuff to test:
-	At some point, the following URLs should be equal, as this is correctly handled by YOURLS
-	- http://example.org/%D0%B1%D0%B0%D0%B1%D0%B0 and http://example.org/баба
-	- http://example.com/?foo%5Bbar%5D=baz and http://example.com/?foo[bar]=baz
-	- http://example.com/?baz=bar&#038;foo%5Bbar%5D=baz and http://example.com/?baz=bar&foo[bar]=baz
-	- ...
-	*/
+    /**
+     * List of various valid URL with mixed scenarios of IDN
+     * Structure: array(URL, expected URL after yourls_sanitize_url (and especially yourls_normalize_uri(), which deals with IDN)
+     */
+    function list_of_idn_punycode_utf8_rtl() {
+        return array(
+            [ 'http://ua-test.link'                   , 'http://ua-test.link' ],                    // Ascii.new
+            [ 'http://ua-test.technology'             , 'http://ua-test.technology' ],              // Ascii.long
+            [ 'http://普试.top/'                      , 'http://普试.top/' ],                       // Idn.ascii
+            [ 'http://ua-test.世界'                   , 'http://ua-test.世界' ],                    // Ascii.idn
+            [ 'http://普试.世界/'                     , 'http://普试.世界/' ],                      // Idn.idn
+            [ 'http://ua-test.xn--rhqv96g'            , 'http://ua-test.世界' ],                   // Ascii.punycode
+            [ 'http://xn--tkvo64f.top'                , 'http://普试.top' ],                       // Punycode.ascii
+            [ 'http://xn--tkvo64f.xn--rhqv96g'        , 'http://普试.世界'  ],                     // Punycode.punycode
+            [ 'http://اختبار-القبولالعالمي.top'        , 'http://اختبار-القبولالعالمي.top' ],       // RTL.ascii
+            [ 'http://اختبار-القبولالعالمي.شبكة'       , 'http://اختبار-القبولالعالمي.شبكة' ],      // RTL.RTL
+            [ 'http://ua-test.link/我的'              , 'http://ua-test.link/我的' ],             // Ascii.new/Unicode
+            [ 'http://ua-test.technology/我的'        , 'http://ua-test.technology/我的' ],       // Ascii.long/Unicode
+            [ 'http://普试.top/我的'                  , 'http://普试.top/我的' ],                  // Idn.ascii/Unicode
+            [ 'http://ua-test.世界/我的'              , 'http://ua-test.世界/我的' ],              // Ascii.idn/Unicode
+            [ 'http://普试.世界/我的'                 , 'http://普试.世界/我的' ],                 // Idn.idn/Unicode
+            [ 'http://ختبار-القبولالعالمي.top/我的'    , 'http://ختبار-القبولالعالمي.top/我的' ],   // RTL.ascii/Unicode
+            [ 'http://اختبار-القبولالعالمي.شبكة/我的'  , 'http://اختبار-القبولالعالمي.شبكة/我的' ], // RTL.RTL/Unicode
+
+                                                      // Damn, due to these UTF8 chars not being fixed width, we cannot neatly
+                                                      // justify the code and comments. How disappointing.
+        );
+    }
+
+    /**
+     * Test various cases : domain name / TLD / path with ascii, punycode, utf8 and RTL
+     *
+     * @dataProvider list_of_idn_punycode_utf8_rtl
+     */
+    function test_various_idn_cases($url, $expected) {
+        $this->assertEquals( yourls_sanitize_url($url), $expected );
+    }

 }
--- a/tests/tests/links/yourls_links.php
+++ b/tests/tests/links/yourls_links.php
@ -0,0 +1,49 @@
+<?php
+
+/**
+ * Links
+ *
+ * @group links
+ * @group idn
+ */
+
+class YOURLS_Link_Tests extends PHPUnit_Framework_TestCase {
+
+    protected function tearDown() {
+        yourls_remove_all_filters( 'get_yourls_site' );
+    }
+
+    /**
+     * Check yourls_get_yourls_site() returns a string
+     */
+    public function test_yourls_site() {
+        $this->assertInternalType("string", yourls_get_yourls_site());
+
+        $scheme = yourls_get_protocol( yourls_get_yourls_site() );
+        $this->assertContains( $scheme, array( 'http://', 'https://' ), "yourls_get_yourls_site() isn't http(s)://" );
+    }
+
+    /**
+     * Check yourls_link() gives a link
+     */
+    public function test_yourls_link() {
+        $this->assertEquals( yourls_link('bonjour'), YOURLS_SITE . '/bonjour' );
+    }
+
+    /**
+     * Check yourls_statlink() gives a link
+     */
+    public function test_yourls_statlink() {
+        $this->assertEquals( yourls_statlink('hello'), YOURLS_SITE . '/hello+' );
+    }
+
+    /**
+     * Check yourls_link() gives an IDN utf8 link
+     */
+    public function test_yourls_link_IDN() {
+        yourls_add_filter( 'get_yourls_site', function() {return 'http://xn--hh-bjab.com';} );
+        $this->assertEquals( yourls_link('suicidal'), 'http://héhé.com/suicidal' );
+        $this->assertEquals( yourls_statlink('angels'), 'http://héhé.com/angels+' );
+    }
+
+}
--- a/tests/tests/utilities/yourls_site.php
+++ b/tests/tests/utilities/yourls_site.php
@ -1,15 +0,0 @@
-<?php
-
-/**
- * Utilities
- *
- * @group utils
- */
-
-class YOURLSSite_Tests extends PHPUnit_Framework_TestCase {
-
-    public function test_yourls_site() {
-        $this->assertInternalType("string", yourls_get_yourls_site());
-    }
-
-}
--- a/user/config-sample.php
+++ b/user/config-sample.php
@ -33,8 +33,10 @@ define( 'YOURLS_DB_PREFIX', 'yourls_' );
 ** Site options
 */

-/** YOURLS installation URL -- all lowercase, no trailing slash at the end.
- ** If you define it to "http://sho.rt", don't use "http://www.sho.rt" in your browser (and vice-versa) */
+/** YOURLS installation URL
+ ** All lowercase, no trailing slash at the end.
+ ** If you define it to "http://sho.rt", don't use "http://www.sho.rt" in your browser (and vice-versa)
+ ** To use an IDN domain (eg http://héhé.com), write its ascii form here (eg http://xn--hh-bjab.com) */
 define( 'YOURLS_SITE', 'http://your-own-domain-here.com' );

 /** YOURLS language
@ -53,7 +55,8 @@ define( 'YOURLS_UNIQUE_URLS', true );
 ** Read http://yourls.org/privatepublic for more details if you're unsure */
 define( 'YOURLS_PRIVATE', true );

-/** A random secret hash used to encrypt cookies. You don't have to remember it, make it long and complicated. Hint: copy from http://yourls.org/cookie **/
+/** A random secret hash used to encrypt cookies. You don't have to remember it, make it long and complicated
+ ** Hint: copy from http://yourls.org/cookie */
 define( 'YOURLS_COOKIEKEY', 'modify this text with something random' );

 /** Username(s) and password(s) allowed to access the site. Passwords either in plain text or as encrypted hashes
@ -65,22 +68,15 @@ $yourls_user_passwords = array(
 	// You can have one or more 'login'=>'password' lines
 	);

+/** URL shortening method: 36 or 62
+ ** 36: generates all lowercase keywords (ie: 13jkm)
+ ** 62: generates mixed case keywords (ie: 13jKm or 13JKm) */
+define( 'YOURLS_URL_CONVERT', 36 );
+
 /** Debug mode to output some internal information
 ** Default is false for live site. Enable when coding or before submitting a new issue */
 define( 'YOURLS_DEBUG', false );

-/*
- ** URL Shortening settings
- */
-
-/** URL shortening method: 36 or 62 */
-define( 'YOURLS_URL_CONVERT', 36 );
-/*
- * 36: generates all lowercase keywords (ie: 13jkm)
- * 62: generates mixed case keywords (ie: 13jKm or 13JKm)
- * Stick to one setting. It's best not to change after you've started creating links.
- */
-
 /**
 * Reserved keywords (so that generated URLs won't match them)
 * Define here negative, unwanted or potentially misleading keywords.
--- a/yourls-loader.php
+++ b/yourls-loader.php
@ -35,8 +35,6 @@ if ( yourls_get_protocol($keyword) ) {
 	$url = yourls_sanitize_url_safe($keyword);
 	$parse = yourls_get_protocol_slashes_and_rest( $url, [ 'up', 'us', 'ur' ] );
    yourls_do_action( 'load_template_redirect_admin', $url );
-    $parse = array_map( 'rawurlencode', $parse );
-
    yourls_do_action( 'pre_redirect_bookmarklet', $url );

    // Redirect to /admin/index.php?up=<url protocol>&us=<url slashes>&ur=<url rest>