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The `$is_IE` and `$is_chrome` globals no longer return `true` for Edge, which is expected as Edge is its own browser and should not be treated like IE. While it might be beneficial for Edge to be treated like Chrome on the client side, it benefits nobody for the `$is_chrome` global to return true. See #33193 Props gregrickaby, johnbillion Built from https://develop.svn.wordpress.org/trunk@33927 git-svn-id: http://core.svn.wordpress.org/trunk@33896 1a063a9b-81f0-0310-95a4-ce76da25c4cd
150 lines
5.3 KiB
PHP
150 lines
5.3 KiB
PHP
<?php
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/**
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* Creates common globals for the rest of WordPress
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*
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* Sets $pagenow global which is the current page. Checks
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* for the browser to set which one is currently being used.
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*
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* Detects which user environment WordPress is being used on.
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* Only attempts to check for Apache, Nginx and IIS -- three web
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* servers with known pretty permalink capability.
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*
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* Note: Though Nginx is detected, WordPress does not currently
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* generate rewrite rules for it. See https://codex.wordpress.org/Nginx
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*
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* @package WordPress
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*/
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global $pagenow,
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$is_lynx, $is_gecko, $is_winIE, $is_macIE, $is_opera, $is_NS4, $is_safari, $is_chrome, $is_iphone, $is_IE, $is_edge,
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$is_apache, $is_IIS, $is_iis7, $is_nginx;
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// On which page are we ?
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if ( is_admin() ) {
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// wp-admin pages are checked more carefully
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if ( is_network_admin() )
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preg_match('#/wp-admin/network/?(.*?)$#i', $_SERVER['PHP_SELF'], $self_matches);
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elseif ( is_user_admin() )
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preg_match('#/wp-admin/user/?(.*?)$#i', $_SERVER['PHP_SELF'], $self_matches);
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else
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preg_match('#/wp-admin/?(.*?)$#i', $_SERVER['PHP_SELF'], $self_matches);
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$pagenow = $self_matches[1];
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$pagenow = trim($pagenow, '/');
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$pagenow = preg_replace('#\?.*?$#', '', $pagenow);
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if ( '' === $pagenow || 'index' === $pagenow || 'index.php' === $pagenow ) {
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$pagenow = 'index.php';
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} else {
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preg_match('#(.*?)(/|$)#', $pagenow, $self_matches);
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$pagenow = strtolower($self_matches[1]);
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if ( '.php' !== substr($pagenow, -4, 4) )
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$pagenow .= '.php'; // for Options +Multiviews: /wp-admin/themes/index.php (themes.php is queried)
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}
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} else {
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if ( preg_match('#([^/]+\.php)([?/].*?)?$#i', $_SERVER['PHP_SELF'], $self_matches) )
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$pagenow = strtolower($self_matches[1]);
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else
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$pagenow = 'index.php';
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}
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unset($self_matches);
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// Simple browser detection
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$is_lynx = $is_gecko = $is_winIE = $is_macIE = $is_opera = $is_NS4 = $is_safari = $is_chrome = $is_iphone = $is_edge = false;
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if ( isset($_SERVER['HTTP_USER_AGENT']) ) {
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if ( strpos($_SERVER['HTTP_USER_AGENT'], 'Lynx') !== false ) {
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$is_lynx = true;
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} elseif ( strpos( $_SERVER['HTTP_USER_AGENT'], 'Edge' ) !== false ) {
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$is_edge = true;
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} elseif ( stripos($_SERVER['HTTP_USER_AGENT'], 'chrome') !== false ) {
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if ( stripos( $_SERVER['HTTP_USER_AGENT'], 'chromeframe' ) !== false ) {
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$is_admin = is_admin();
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/**
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* Filter whether Google Chrome Frame should be used, if available.
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*
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* @since 3.2.0
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*
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* @param bool $is_admin Whether to use the Google Chrome Frame. Default is the value of is_admin().
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*/
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if ( $is_chrome = apply_filters( 'use_google_chrome_frame', $is_admin ) )
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header( 'X-UA-Compatible: chrome=1' );
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$is_winIE = ! $is_chrome;
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} else {
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$is_chrome = true;
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}
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} elseif ( stripos($_SERVER['HTTP_USER_AGENT'], 'safari') !== false ) {
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$is_safari = true;
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} elseif ( ( strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false || strpos($_SERVER['HTTP_USER_AGENT'], 'Trident') !== false ) && strpos($_SERVER['HTTP_USER_AGENT'], 'Win') !== false ) {
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$is_winIE = true;
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} elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false && strpos($_SERVER['HTTP_USER_AGENT'], 'Mac') !== false ) {
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$is_macIE = true;
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} elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Gecko') !== false ) {
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$is_gecko = true;
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} elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Opera') !== false ) {
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$is_opera = true;
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} elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Nav') !== false && strpos($_SERVER['HTTP_USER_AGENT'], 'Mozilla/4.') !== false ) {
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$is_NS4 = true;
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}
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}
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if ( $is_safari && stripos($_SERVER['HTTP_USER_AGENT'], 'mobile') !== false )
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$is_iphone = true;
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$is_IE = ( $is_macIE || $is_winIE );
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// Server detection
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/**
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* Whether the server software is Apache or something else
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* @global bool $is_apache
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*/
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$is_apache = (strpos($_SERVER['SERVER_SOFTWARE'], 'Apache') !== false || strpos($_SERVER['SERVER_SOFTWARE'], 'LiteSpeed') !== false);
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/**
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* Whether the server software is Nginx or something else
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* @global bool $is_nginx
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*/
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$is_nginx = (strpos($_SERVER['SERVER_SOFTWARE'], 'nginx') !== false);
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/**
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* Whether the server software is IIS or something else
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* @global bool $is_IIS
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*/
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$is_IIS = !$is_apache && (strpos($_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS') !== false || strpos($_SERVER['SERVER_SOFTWARE'], 'ExpressionDevServer') !== false);
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/**
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* Whether the server software is IIS 7.X or greater
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* @global bool $is_iis7
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*/
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$is_iis7 = $is_IIS && intval( substr( $_SERVER['SERVER_SOFTWARE'], strpos( $_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS/' ) + 14 ) ) >= 7;
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/**
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* Test if the current browser runs on a mobile device (smart phone, tablet, etc.)
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*
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* @staticvar bool $is_mobile
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*
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* @return bool
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*/
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function wp_is_mobile() {
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static $is_mobile = null;
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if ( isset( $is_mobile ) ) {
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return $is_mobile;
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}
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if ( empty($_SERVER['HTTP_USER_AGENT']) ) {
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$is_mobile = false;
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} elseif ( strpos($_SERVER['HTTP_USER_AGENT'], 'Mobile') !== false // many mobile devices (all iPhone, iPad, etc.)
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|| strpos($_SERVER['HTTP_USER_AGENT'], 'Android') !== false
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|| strpos($_SERVER['HTTP_USER_AGENT'], 'Silk/') !== false
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|| strpos($_SERVER['HTTP_USER_AGENT'], 'Kindle') !== false
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|| strpos($_SERVER['HTTP_USER_AGENT'], 'BlackBerry') !== false
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|| strpos($_SERVER['HTTP_USER_AGENT'], 'Opera Mini') !== false
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|| strpos($_SERVER['HTTP_USER_AGENT'], 'Opera Mobi') !== false ) {
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$is_mobile = true;
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} else {
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$is_mobile = false;
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}
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return $is_mobile;
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}
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