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ExtractUniqueKeyFromSession::__invoke()   A
last analyzed

↳ Parent: ExtractUniqueKeyFromSession

Complexity

Conditions 3
Paths 2

Size

Total Lines 14

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 7
CRAP Score 3

Importance

Changes 0
Metric Value
cc 3
nc 2
nop 1
dl 0
loc 14
ccs 7
cts 7
cp 1
crap 3
rs 9.7998
c 0
b 0
f 0
1 
<?php
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declare(strict_types=1);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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namespace PSR7Csrf\Session;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use PSR7Sessions\Storageless\Session\SessionInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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final class ExtractUniqueKeyFromSession implements ExtractUniqueKeyFromSessionInterface

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    const ENTROPY = 32;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @var string

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    private $uniqueIdKey;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function __construct(string $uniqueIdKey)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $this->uniqueIdKey = $uniqueIdKey;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    public function __invoke(SessionInterface $session) : string

            


            
                                                        
            
                                    
            
            

                
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    {

            


            
                                                        
            
                                    
            
            

                
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        $uniqueKey = $session->get($this->uniqueIdKey, '');

            


            
                                                        
            
                                    
            
            

                
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        if ('' === $uniqueKey || ! is_string($uniqueKey)) {

            


            
                                                        
            
                                    
            
            

                
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            $generatedKey = bin2hex(random_bytes(self::ENTROPY));

            


            
                                                        
            
                                    
            
            

                
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            $session->set($this->uniqueIdKey, $generatedKey);

            


            
                                                        
            
                                    
            
            

                
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            return $generatedKey;

            


            
                                                        
            
                                    
            
            

                
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        }

            


            
                                                        
            
                                    
            
            

                
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        return $uniqueKey;

            


            
                                                        
            
                                    
            
            

                
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    }

            


            
                                                        
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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