Sinergi\BrowserDetector\BrowserDetector::checkBrowserInternetExplorer()

Complexity

Conditions	22
Paths	37

Size

Total Lines	112
Code Lines	64

Duplication

Lines	9
Ratio	8.04 %

Code Coverage

Tests	44
CRAP Score	58.141

Importance

Changes	3
Bugs	0	Features	0

<?php
    public static function checkBrowserInternetExplorer()
    {
        // Test for v1 - v1.5 IE
        if (stripos(self::$userAgentString, 'microsoft internet explorer') !== false) {
            self::$browser->setName(Browser::IE);
            self::$browser->setVersion('1.0');
            $aresult = stristr(self::$userAgentString, '/');
            if (preg_match('/308|425|426|474|0b1/i', $aresult)) {
                self::$browser->setVersion('1.5');
            }

            return true;
        } // Test for versions > 1.5 and < 11 and some cases of 11
        else {
            if (stripos(self::$userAgentString, 'msie') !== false && stripos(self::$userAgentString, 'opera') === false
            ) {
                // See if the browser is the odd MSN Explorer
                if (stripos(self::$userAgentString, 'msnb') !== false) {

This code seems to be duplicated across your project.

                    $aresult = explode(' ', stristr(str_replace(';', '; ', self::$userAgentString), 'MSN'));
                    self::$browser->setName(Browser::MSN);
                    if (isset($aresult[1])) {
                        self::$browser->setVersion(str_replace(array('(', ')', ';'), '', $aresult[1]));
                    }

                    return true;
                }
                $aresult = explode(' ', stristr(str_replace(';', '; ', self::$userAgentString), 'msie'));
                self::$browser->setName(Browser::IE);
                if (isset($aresult[1])) {
                    self::$browser->setVersion(str_replace(array('(', ')', ';'), '', $aresult[1]));
                }
                // See https://msdn.microsoft.com/en-us/library/ie/hh869301%28v=vs.85%29.aspx
                // Might be 11, anyway !
                if (stripos(self::$userAgentString, 'trident') !== false) {
                    preg_match('/rv:(\d+\.\d+)/', self::$userAgentString, $matches);
                    if (isset($matches[1])) {
                        self::$browser->setVersion($matches[1]);
                    }

                    // At this poing in the method, we know the MSIE and Trident
                    // strings are present in the $userAgentString. If we're in
                    // compatibility mode, we need to determine the true version.
                    // If the MSIE version is 7.0, we can look at the Trident
                    // version to *approximate* the true IE version. If we don't
                    // find a matching pair, ( e.g. MSIE 7.0 && Trident/7.0 )
                    // we're *not* in compatibility mode and the browser really
                    // is version 7.0.
                    if (stripos(self::$userAgentString, 'MSIE 7.0;')) {
                        if (stripos(self::$userAgentString, 'Trident/7.0;')) {
                            // IE11 in compatibility mode
                            self::$browser->setVersion('11.0');
                            self::$browser->setIsCompatibilityMode(true);
                        } elseif (stripos(self::$userAgentString, 'Trident/6.0;')) {
                            // IE10 in compatibility mode
                            self::$browser->setVersion('10.0');
                            self::$browser->setIsCompatibilityMode(true);
                        } elseif (stripos(self::$userAgentString, 'Trident/5.0;')) {
                            // IE9 in compatibility mode
                            self::$browser->setVersion('9.0');
                            self::$browser->setIsCompatibilityMode(true);
                        } elseif (stripos(self::$userAgentString, 'Trident/4.0;')) {
                            // IE8 in compatibility mode
                            self::$browser->setVersion('8.0');
                            self::$browser->setIsCompatibilityMode(true);
                        }
                    }
                }

                return true;
            } // Test for versions >= 11
            else {
                if (stripos(self::$userAgentString, 'trident') !== false) {
                    self::$browser->setName(Browser::IE);

                    preg_match('/rv:(\d+\.\d+)/', self::$userAgentString, $matches);
                    if (isset($matches[1])) {
                        self::$browser->setVersion($matches[1]);

                        return true;
                    } else {
                        return false;
                    }
                } // Test for Pocket IE
                else {
                    if (stripos(self::$userAgentString, 'mspie') !== false ||
                        stripos(
                            self::$userAgentString,
                            'pocket'
                        ) !== false
                    ) {
                        $aresult = explode(' ', stristr(self::$userAgentString, 'mspie'));
                        self::$browser->setName(Browser::POCKET_IE);

                        if (stripos(self::$userAgentString, 'mspie') !== false) {
                            if (isset($aresult[1])) {
                                self::$browser->setVersion($aresult[1]);
                            }
                        } else {
                            $aversion = explode('/', self::$userAgentString);
                            if (isset($aversion[1])) {
                                self::$browser->setVersion($aversion[1]);
                            }
                        }

                        return true;
                    }
                }
            }
        }

        return false;
    }