#326 Switch from PHP library to platform.js
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<?php
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/**
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* Parses a user agent string into its important parts
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*
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* @author Jesse G. Donat <donatj@gmail.com>
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* @link https://github.com/donatj/PhpUserAgent
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* @link http://donatstudios.com/PHP-Parser-HTTP_USER_AGENT
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* @param string|null $u_agent User agent string to parse or null. Uses $_SERVER['HTTP_USER_AGENT'] on NULL
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* @throws InvalidArgumentException on not having a proper user agent to parse.
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* @return string[] an array with browser, version and platform keys
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*/
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function parse_user_agent( $u_agent = null ) {
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if( is_null($u_agent) ) {
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if( isset($_SERVER['HTTP_USER_AGENT']) ) {
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$u_agent = $_SERVER['HTTP_USER_AGENT'];
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} else {
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throw new \InvalidArgumentException('parse_user_agent requires a user agent');
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}
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}
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$platform = null;
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$browser = null;
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$version = null;
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$empty = array( 'platform' => $platform, 'browser' => $browser, 'version' => $version );
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if( !$u_agent ) return $empty;
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if( preg_match('/\((.*?)\)/im', $u_agent, $parent_matches) ) {
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preg_match_all('/(?P<platform>BB\d+;|Android|CrOS|Tizen|iPhone|iPad|Linux|Macintosh|Windows(\ Phone)?|Silk|linux-gnu|BlackBerry|PlayBook|(New\ )?Nintendo\ (WiiU?|3?DS)|Xbox(\ One)?)
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(?:\ [^;]*)?
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(?:;|$)/imx', $parent_matches[1], $result, PREG_PATTERN_ORDER);
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$priority = array( 'Xbox One', 'Xbox', 'Windows Phone', 'Tizen', 'Android' );
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$result['platform'] = array_unique($result['platform']);
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if( count($result['platform']) > 1 ) {
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if( $keys = array_intersect($priority, $result['platform']) ) {
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$platform = reset($keys);
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} else {
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$platform = $result['platform'][0];
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}
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} elseif( isset($result['platform'][0]) ) {
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$platform = $result['platform'][0];
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}
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}
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if( $platform == 'linux-gnu' ) {
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$platform = 'Linux';
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} elseif( $platform == 'CrOS' ) {
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$platform = 'Chrome OS';
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}
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preg_match_all('%(?P<browser>Camino|Kindle(\ Fire\ Build)?|Firefox|Iceweasel|Safari|MSIE|Trident|AppleWebKit|TizenBrowser|Chrome|
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Vivaldi|IEMobile|Opera|OPR|Silk|Midori|Edge|CriOS|
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Baiduspider|Googlebot|YandexBot|bingbot|Lynx|Version|Wget|curl|
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NintendoBrowser|PLAYSTATION\ (\d|Vita)+)
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(?:\)?;?)
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(?:(?:[:/ ])(?P<version>[0-9A-Z.]+)|/(?:[A-Z]*))%ix',
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$u_agent, $result, PREG_PATTERN_ORDER);
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// If nothing matched, return null (to avoid undefined index errors)
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if( !isset($result['browser'][0]) || !isset($result['version'][0]) ) {
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if( preg_match('%^(?!Mozilla)(?P<browser>[A-Z0-9\-]+)(/(?P<version>[0-9A-Z.]+))?%ix', $u_agent, $result) ) {
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return array( 'platform' => $platform ?: null, 'browser' => $result['browser'], 'version' => isset($result['version']) ? $result['version'] ?: null : null );
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}
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return $empty;
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}
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if( preg_match('/rv:(?P<version>[0-9A-Z.]+)/si', $u_agent, $rv_result) ) {
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$rv_result = $rv_result['version'];
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}
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$browser = $result['browser'][0];
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$version = $result['version'][0];
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$find = function ( $search, &$key ) use ( $result ) {
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$xkey = array_search(strtolower($search), array_map('strtolower', $result['browser']));
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if( $xkey !== false ) {
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$key = $xkey;
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return true;
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}
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return false;
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};
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$key = 0;
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$ekey = 0;
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if( $browser == 'Iceweasel' ) {
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$browser = 'Firefox';
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} elseif( $find('Playstation Vita', $key) ) {
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$platform = 'PlayStation Vita';
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$browser = 'Browser';
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} elseif( $find('Kindle Fire Build', $key) || $find('Silk', $key) ) {
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$browser = $result['browser'][$key] == 'Silk' ? 'Silk' : 'Kindle';
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$platform = 'Kindle Fire';
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if( !($version = $result['version'][$key]) || !is_numeric($version[0]) ) {
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$version = $result['version'][array_search('Version', $result['browser'])];
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}
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} elseif( $find('NintendoBrowser', $key) || $platform == 'Nintendo 3DS' ) {
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$browser = 'NintendoBrowser';
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$version = $result['version'][$key];
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} elseif( $find('Kindle', $key) ) {
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$browser = $result['browser'][$key];
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$platform = 'Kindle';
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$version = $result['version'][$key];
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} elseif( $find('OPR', $key) ) {
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$browser = 'Opera Next';
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$version = $result['version'][$key];
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} elseif( $find('Opera', $key) ) {
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$browser = 'Opera';
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$find('Version', $key);
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$version = $result['version'][$key];
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} elseif( $find('Midori', $key) ) {
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$browser = 'Midori';
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$version = $result['version'][$key];
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} elseif( $browser == 'MSIE' || ($rv_result && $find('Trident', $key)) || $find('Edge', $ekey) ) {
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$browser = 'MSIE';
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if( $find('IEMobile', $key) ) {
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$browser = 'IEMobile';
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$version = $result['version'][$key];
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} elseif( $ekey ) {
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$version = $result['version'][$ekey];
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} else {
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$version = $rv_result ?: $result['version'][$key];
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}
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if( version_compare($version, '12', '>=') ) {
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$browser = 'Edge';
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}
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} elseif( $find('Vivaldi', $key) ) {
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$browser = 'Vivaldi';
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$version = $result['version'][$key];
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} elseif( $find('Chrome', $key) || $find('CriOS', $key) ) {
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$browser = 'Chrome';
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$version = $result['version'][$key];
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} elseif( $browser == 'AppleWebKit' ) {
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if( ($platform == 'Android' && !($key = 0)) ) {
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$browser = 'Android Browser';
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} elseif( strpos($platform, 'BB') === 0 ) {
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$browser = 'BlackBerry Browser';
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$platform = 'BlackBerry';
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} elseif( $platform == 'BlackBerry' || $platform == 'PlayBook' ) {
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$browser = 'BlackBerry Browser';
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} elseif( $find('Safari', $key) ) {
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$browser = 'Safari';
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} elseif( $find('TizenBrowser', $key) ) {
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$browser = 'TizenBrowser';
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}
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$find('Version', $key);
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$version = $result['version'][$key];
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} elseif( $key = preg_grep('/playstation \d/i', array_map('strtolower', $result['browser'])) ) {
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$key = reset($key);
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$platform = 'PlayStation ' . preg_replace('/[^\d]/i', '', $key);
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$browser = 'NetFront';
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}
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return array( 'platform' => $platform ?: null, 'browser' => $browser ?: null, 'version' => $version ?: null );
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}
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