| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | namespace Arcanedev\Agent\Detectors; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use Arcanedev\Agent\Contracts\Detector; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use Illuminate\Http\Request; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * Class     LanguageDetector | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * @author   ARCANEDEV <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | class LanguageDetector implements Detector | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     /* ----------------------------------------------------------------- | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |      |  Properties | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |      | ----------------------------------------------------------------- | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     protected $languages; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     /* ----------------------------------------------------------------- | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      |  Getters & Setters | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      | ----------------------------------------------------------------- | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |      * Get the languages. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 | 18 |  |     public function languages(): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 | 18 |  |         return $this->languages; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      * Get the languages keys. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 | 18 |  |     public function keys(): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 | 18 |  |         return array_keys($this->languages()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |     /* ----------------------------------------------------------------- | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |      |  Main Methods | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |      | ----------------------------------------------------------------- | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * Handle the given request. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * @param  \Illuminate\Http\Request  $request | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |      * @return $this | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 | 372 |  |     public function handle(Request $request): Detector | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 | 372 |  |         return $this->fromAcceptLanguage( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 | 372 |  |             $request->server('HTTP_ACCEPT_LANGUAGE') | 
                            
                    |  |  |  | 
                                                                                        
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                | 68 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |      * Handle from the given accept language. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |      * @param  string  $acceptLanguage | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |      * @return $this | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 | 372 |  |     public function fromAcceptLanguage(string $acceptLanguage): Detector | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 | 372 |  |         $this->languages = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 | 372 |  |         if ( ! empty($acceptLanguage)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 | 372 |  |             $this->parse($acceptLanguage); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 | 372 |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |     /* ----------------------------------------------------------------- | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      |  Other Methods | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |      | ----------------------------------------------------------------- | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |      * Parse the accept language. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |      * @param  string  $acceptLanguage | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 98 |  |  |      */ | 
            
                                                        
            
                                    
            
            
                | 99 | 372 |  |     protected function parse(string $acceptLanguage): void | 
            
                                                        
            
                                    
            
            
                | 100 |  |  |     { | 
            
                                                        
            
                                    
            
            
                | 101 |  |  |         // Parse accept language string. | 
            
                                                        
            
                                    
            
            
                | 102 | 372 |  |         foreach (explode(',', $acceptLanguage) as $piece) { | 
            
                                                        
            
                                    
            
            
                | 103 | 372 |  |             $parts = explode(';', $piece); | 
            
                                                        
            
                                    
            
            
                | 104 | 372 |  |             $language = strtolower($parts[0]); | 
            
                                                        
            
                                    
            
            
                | 105 | 372 |  |             $priority = empty($parts[1]) ? 1. : floatval(str_replace('q=', '', $parts[1])); | 
            
                                                        
            
                                    
            
            
                | 106 | 372 |  |             $this->languages[$language] = $priority; | 
            
                                                        
            
                                    
            
            
                | 107 |  |  |         } | 
            
                                                        
            
                                    
            
            
                | 108 |  |  |  | 
            
                                                        
            
                                    
            
            
                | 109 |  |  |         // Sort languages by priority. | 
            
                                                        
            
                                    
            
            
                | 110 | 372 |  |         arsort($this->languages); | 
            
                                                        
            
                                    
            
            
                | 111 | 372 |  |     } | 
            
                                                        
            
                                    
            
            
                | 112 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 113 |  |  |  | 
            
                        
This check looks at variables that are passed out again to other methods.
If the outgoing method call has stricter type requirements than the method itself, an issue is raised.
An additional type check may prevent trouble.