<?php


namespace MVC\Classe;

class Browser
{
    public $user;
    public $userAgent;

    public function __construct()
    {
        $this->userAgent = $_SERVER['HTTP_USER_AGENT'];
        $this->user = $this->get_browser_name();
        //Logger::addLog('http.browser',$this->user);
    }

    public static function get()
    {
        // Make case insensitive.
        $t = strtolower($_SERVER['HTTP_USER_AGENT']);

        // If the string *starts* with the string, strpos returns 0 (i.e., FALSE). Do a ghetto hack and start with a space.
        // "[strpos()] may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE."
        //     http://php.net/manual/en/function.strpos.php
        $t = " " . $t;

        // Humans / Regular Users
        if (strpos($t, 'opera') || strpos($t, 'opr/')) {
            return 'Opera';
        } elseif (strpos($t, 'edge')) {
            return 'Edge';
        } elseif (strpos($t, 'chrome')) {
            return 'Chrome';
        } elseif (strpos($t, 'safari')) {
            return 'Safari';
        } elseif (strpos($t, 'firefox')) {
            return 'Firefox';
        } elseif (strpos($t, 'msie') || strpos($t, 'trident/7')) {
            return 'Internet Explorer';
        }
    }

    public static function get_firefox_version() {
        // Make case insensitive.
        $t = strtolower($_SERVER['HTTP_USER_AGENT']);

        // If the string *starts* with the string, strpos returns 0 (i.e., FALSE). Do a ghetto hack and start with a space.
        // "[strpos()] may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE."
        //     http://php.net/manual/en/function.strpos.php
        $t = " " . $t;

        // Firefox Users
        if (strpos($t, 'firefox')) {
            preg_match('/rv:(.*)\)/', $_SERVER['HTTP_USER_AGENT'], $matches, PREG_OFFSET_CAPTURE);
            if(isset($matches[1])) {
                return intval($matches[1][0]);
            }else{
                return 'no-version';
            }
        }
        return 'not-firefox';
    }

    public static function get_ip() {
        // IP si internet partagé
        if (isset($_SERVER['HTTP_CLIENT_IP'])) {
            return $_SERVER['HTTP_CLIENT_IP'];
        }
        // IP derrière un proxy
        elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
            return $_SERVER['HTTP_X_FORWARDED_FOR'];
        }
        // Sinon : IP normale
        else {
            return (isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '');
        }
    }

    public static function get_os() {
        $user_agent = $_SERVER['HTTP_USER_AGENT'];
        $os_platform  = "Inconnu";
        $os_array     = array(
            '/windows nt 10/i'      =>  'Windows 10',
            '/windows nt 6.3/i'     =>  'Windows 8.1',
            '/windows nt 6.2/i'     =>  'Windows 8',
            '/windows nt 6.1/i'     =>  'Windows 7',
            '/windows nt 6.0/i'     =>  'Windows Vista',
            '/windows nt 5.2/i'     =>  'Windows Server 2003/XP x64',
            '/windows nt 5.1/i'     =>  'Windows XP',
            '/windows xp/i'         =>  'Windows XP',
            '/windows nt 5.0/i'     =>  'Windows 2000',
            '/windows me/i'         =>  'Windows ME',
            '/win98/i'              =>  'Windows 98',
            '/win95/i'              =>  'Windows 95',
            '/win16/i'              =>  'Windows 3.11',
            '/macintosh|mac os x/i' =>  'Mac OS X',
            '/mac_powerpc/i'        =>  'Mac OS 9',
            '/linux/i'              =>  'Linux',
            '/ubuntu/i'             =>  'Ubuntu',
            '/iphone/i'             =>  'iPhone',
            '/ipod/i'               =>  'iPod',
            '/ipad/i'               =>  'iPad',
            '/android/i'            =>  'Android',
            '/blackberry/i'         =>  'BlackBerry',
            '/webos/i'              =>  'Mobile'
        );
        foreach ($os_array as $regex => $value) {
            if (preg_match($regex, $user_agent)) {
                $os_platform = $value;
            }
        }
        return $os_platform;
    }

    protected function get_browser_name()
    {

        // Make case insensitive.
        $t = strtolower($this->userAgent);

        // If the string *starts* with the string, strpos returns 0 (i.e., FALSE). Do a ghetto hack and start with a space.
        // "[strpos()] may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE."
        //     http://php.net/manual/en/function.strpos.php
        $t = " " . $t;

        // Humans / Regular Users
        if (strpos($t, 'opera') || strpos($t, 'opr/')) {
            return 'Opera';
        } elseif (strpos($t, 'edge')) {
            return 'Edge';
        } elseif (strpos($t, 'chrome')) {
            return 'Chrome';
        } elseif (strpos($t, 'safari')) {
            return 'Safari';
        } elseif (strpos($t, 'firefox')) {
            return 'Firefox';
        } elseif (strpos($t, 'msie') || strpos($t, 'trident/7')) {
            return 'Internet Explorer';
        }

        // Application Users
        elseif (strpos($t, 'curl')) {
            return '[App] Curl';
        }

        // Search Engines
        elseif (strpos($t, 'google')) {
            return '[Bot] Googlebot';
        } elseif (strpos($t, 'bing')) {
            return '[Bot] Bingbot';
        } elseif (strpos($t, 'slurp')) {
            return '[Bot] Yahoo! Slurp';
        } elseif (strpos($t, 'duckduckgo')) {
            return '[Bot] DuckDuckBot';
        } elseif (strpos($t, 'baidu')) {
            return '[Bot] Baidu';
        } elseif (strpos($t, 'yandex')) {
            return '[Bot] Yandex';
        } elseif (strpos($t, 'sogou')) {
            return '[Bot] Sogou';
        } elseif (strpos($t, 'exabot')) {
            return '[Bot] Exabot';
        } elseif (strpos($t, 'msn')) {
            return '[Bot] MSN';
        }

        // Common Tools and Bots
        elseif (strpos($t, 'mj12bot')) {
            return '[Bot] Majestic';
        } elseif (strpos($t, 'ahrefs')) {
            return '[Bot] Ahrefs';
        } elseif (strpos($t, 'semrush')) {
            return '[Bot] SEMRush';
        } elseif (strpos($t, 'rogerbot') || strpos($t, 'dotbot')) {
            return '[Bot] Moz or OpenSiteExplorer';
        } elseif (strpos($t, 'frog') || strpos($t, 'screaming')) {
            return '[Bot] Screaming Frog';
        }

        // Miscellaneous
        elseif (strpos($t, 'facebook')) {
            return '[Bot] Facebook';
        } elseif (strpos($t, 'pinterest')) {
            return '[Bot] Pinterest';
        }

        // Check for strings commonly used in bot user agents
        elseif (strpos($t, 'crawler') || strpos($t, 'api') ||
            strpos($t, 'spider') || strpos($t, 'http') ||
            strpos($t, 'bot') || strpos($t, 'archive') ||
            strpos($t, 'info') || strpos($t, 'data')) {
            return '[Bot] Other';
        }

        return 'Other (Unknown)';
    }

    public function isBot()
    {
        if (preg_match('#Bot#', $this->user)) {
            return true;
        } else {
            return false;
        }
    }

    // Alternative TO https://www.php.net/manual/fr/function.get-browser.php
    // Function written and tested December, 2018

    public function isAppRequest()
    {
        if (preg_match('#App#', $this->user)) {
            return true;
        } else {
            return false;
        }
    }
}