| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | namespace FlexyProject\GitHub\Event; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | use Exception; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use FlexyProject\GitHub\Exception\BadSignatureException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use FlexyProject\GitHub\WebHook; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use Symfony\Component\HttpFoundation\ServerBag; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * Payloads | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * @link    https://developer.github.com/webhooks/#payloads | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * @package FlexyProject\GitHub\Event | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | class Payload implements EventInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |     /** @var WebHook */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |     protected $webHook; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |     /** @var null|string */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |     protected $secret = null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |     /** @var string|resource */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     protected $rawData; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     /** @var mixed */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     protected $parsedData; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     /** @var ServerBag */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |     protected $serverBag; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |      * Constructor, pass a WebHook object | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      * @param WebHook $webHook | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     public function __construct(WebHook $webHook) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         $this->setWebHook($webHook); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         $request = $webHook->getRequest(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |         $this->setRawData($request->getContent()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |         $this->serverBag = $request->server; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      * Get webHook | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      * @return null|WebHook | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |     public function getWebHook() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |         return $this->webHook; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * Set webHook | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * @param mixed $webHook | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * @return Payload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |     public function setWebHook($webHook): Payload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |         $this->webHook = $webHook; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |      * Set secret, encode this secret with Hmac, SHA1 method | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |      * @param string $secret | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |      * @return Payload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |     public function setSecret(string $secret): Payload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |         $this->secret = hash_hmac('sha1', $this->rawData, $secret); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * Get secret | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * @return null|string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |     public function getSecret() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |         return $this->secret; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |      * Get rawData | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |      * @return resource|string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |     public function getRawData() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |         return $this->rawData; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |      * Set rawData | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |      * @param resource|string $rawData | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |      * @return Payload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |     public function setRawData($rawData): Payload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |         $this->rawData = $rawData; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |      * Get parsedData | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |     public function getData() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |         return $this->parsedData; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |      * Set parsedData | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |      * @param mixed $parsedData | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |      * @return Payload | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 133 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 134 |  |  |     protected function setParsedData($parsedData): Payload | 
            
                                                                        
                            
            
                                    
            
            
                | 135 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 136 |  |  |         $data = json_decode($parsedData); | 
            
                                                                        
                            
            
                                    
            
            
                | 137 |  |  |         if (JSON_ERROR_NONE === json_last_error()) { | 
            
                                                                        
                            
            
                                    
            
            
                | 138 |  |  |             $this->parsedData = $data; | 
            
                                                                        
                            
            
                                    
            
            
                | 139 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 140 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 141 |  |  |         return $this; | 
            
                                                                        
                            
            
                                    
            
            
                | 142 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |      * Debugger | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |     public function __debugInfo(): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |         return [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |             'ramData'     => (array)$this->getRawData(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |             'jsonEncoded' => json_decode($this->getRawData()) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |      * Parse raw data | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |      * @return Payload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |      * @throws BadSignatureException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |      * @throws \Exception | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |     public function parse(): Payload | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |         /** Check signature from header */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |         if (!$this->_checkSignature()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |             throw new BadSignatureException('Hook secret does not match.'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |         /** Get data from different locations according to content-type */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |         switch ($this->serverBag->get('CONTENT_TYPE')) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |             case 'application/json': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |                 $data = $this->getRawData(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |                 break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |             case 'application/x-www-form-urlencoded': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |                 $data = $_POST['payload']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |                 break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |             default: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |                 throw new Exception('Unsupported content type: "' . $this->serverBag->get('CONTENT_TYPE') . '"'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |         $this->setParsedData($data); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |      * Check X-Hub-Signature | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |      * @throws BadSignatureException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |     private function _checkSignature(): bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |         $secret           = $this->getSecret(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |         $httpHubSignature = $this->serverBag->get('HTTP_X_HUB_SIGNATURE'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |         if (null !== $secret) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |             if ($httpHubSignature) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |                 /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |                  * Split signature into algorithm and hash | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |                  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |                  * @link http://isometriks.com/verify-github-webhooks-with-php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |                  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |                 list(, $hash) = explode('=', $httpHubSignature, 2); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |                 return $secret == $hash; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |             throw new BadSignatureException('HTTP header "X-Hub-Signature" is missing.'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |         return true; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 216 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 217 |  |  | } |