| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | namespace unreal4u\MQTT\Internals; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use unreal4u\MQTT\Exceptions\InvalidResponseType; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use unreal4u\MQTT\Utilities; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * Trait ReadableContent | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * @package unreal4u\MQTT\Internals | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 13 |  |  |  */ | 
            
                                                                        
                            
            
                                    
            
            
                | 14 |  |  | trait ReadableContent | 
            
                                                                        
                            
            
                                    
            
            
                | 15 |  |  | { | 
            
                                                                        
                            
            
                                    
            
            
                | 16 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 17 |  |  |      * Length of variable header | 
            
                                                                        
                            
            
                                    
            
            
                | 18 |  |  |      * @var int | 
            
                                                                        
                            
            
                                    
            
            
                | 19 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 20 |  |  |     protected $variableHeaderSize = 0; | 
            
                                                                        
                            
            
                                    
            
            
                | 21 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 22 | 3 |  |     final public function instantiateObject(string $rawMQTTHeaders): ReadableContentInterface | 
            
                                                                        
                            
            
                                    
            
            
                | 23 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 24 |  |  |         //var_dump(base64_encode($rawMQTTHeaders)); // For now: make it a bit easier to create unit tests | 
            
                                                                        
                            
            
                                    
            
            
                | 25 |  |  |         $this | 
            
                                                                        
                            
            
                                    
            
            
                | 26 | 3 |  |             ->checkControlPacketValue(\ord($rawMQTTHeaders[0]) >> 4) | 
            
                                                                        
                            
            
                                    
            
            
                | 27 | 2 |  |             ->fillObject($rawMQTTHeaders); | 
            
                                                                        
                            
            
                                    
            
            
                | 28 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 29 | 2 |  |         return $this; | 
                            
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                | 30 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 31 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 32 | 3 |  |     final public function checkControlPacketValue(int $controlPacketValue): ReadableContentInterface | 
            
                                                                        
                            
            
                                    
            
            
                | 33 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 34 |  |  |         // Check whether the first byte corresponds to the expected control packet value | 
            
                                                                        
                            
            
                                    
            
            
                | 35 | 3 |  |         if (static::CONTROL_PACKET_VALUE !== $controlPacketValue) { | 
                            
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                | 36 | 1 |  |             throw new InvalidResponseType(sprintf( | 
            
                                                                        
                            
            
                                    
            
            
                | 37 | 1 |  |                 'Value of received value does not correspond to response (Expected: %d, Actual: %d)', | 
            
                                                                        
                            
            
                                    
            
            
                | 38 | 1 |  |                 static::CONTROL_PACKET_VALUE, | 
            
                                                                        
                            
            
                                    
            
            
                | 39 | 1 |  |                 $controlPacketValue | 
            
                                                                        
                            
            
                                    
            
            
                | 40 |  |  |             )); | 
            
                                                                        
                            
            
                                    
            
            
                | 41 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 42 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 43 | 2 |  |         return $this; | 
                            
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                | 44 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 45 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 46 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 47 |  |  |      * Extracts the packet identifier from the raw headers | 
            
                                                                        
                            
            
                                    
            
            
                | 48 |  |  |      * | 
            
                                                                        
                            
            
                                    
            
            
                | 49 |  |  |      * @param string $rawMQTTHeaders | 
            
                                                                        
                            
            
                                    
            
            
                | 50 |  |  |      * @return int | 
            
                                                                        
                            
            
                                    
            
            
                | 51 |  |  |      * @throws \OutOfRangeException | 
            
                                                                        
                            
            
                                    
            
            
                | 52 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 | 1 |  |     private function extractPacketIdentifier(string $rawMQTTHeaders): int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     { | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 55 | 1 |  |         return Utilities::convertBinaryStringToNumber($rawMQTTHeaders{2} . $rawMQTTHeaders{3}); | 
            
                                                                        
                                                                
            
                                    
            
            
                | 56 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 57 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 58 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 59 |  |  |      * Any class can overwrite the default behaviour | 
            
                                                                        
                            
            
                                    
            
            
                | 60 |  |  |      * @param string $rawMQTTHeaders | 
            
                                                                        
                            
            
                                    
            
            
                | 61 |  |  |      * @return ReadableContentInterface | 
            
                                                                        
                            
            
                                    
            
            
                | 62 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 63 | 1 |  |     public function fillObject(string $rawMQTTHeaders): ReadableContentInterface | 
                            
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                | 64 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 65 | 1 |  |         return $this; | 
                            
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                | 66 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 67 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 68 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 69 |  |  |      * Any class can overwrite the default behaviour | 
            
                                                                        
                            
            
                                    
            
            
                | 70 |  |  |      * @param ClientInterface $client | 
            
                                                                        
                            
            
                                    
            
            
                | 71 |  |  |      * @param WritableContentInterface $originalRequest | 
            
                                                                        
                            
            
                                    
            
            
                | 72 |  |  |      * @return bool | 
            
                                                                        
                            
            
                                    
            
            
                | 73 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |     public function performSpecialActions(ClientInterface $client, WritableContentInterface $originalRequest): bool | 
                            
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                | 75 |  |  |     { | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 76 |  |  |         return false; | 
            
                                                                        
                                                                
            
                                    
            
            
                | 77 |  |  |     } | 
            
                                                                        
                                                                
            
                                    
            
            
                | 78 |  |  | } | 
            
                                                                        
                                                                
            
                                    
            
            
                | 79 |  |  |  |