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<?php |
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/** |
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* Request management object. |
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* @package Writing_On_GitHub |
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*/ |
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/** |
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* Class Writing_On_GitHub_Request |
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*/ |
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class Writing_On_GitHub_Request { |
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/** |
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* Application container. |
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* |
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* @var Writing_On_GitHub |
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*/ |
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protected $app; |
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/** |
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* Raw request data. |
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* |
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* @var string |
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*/ |
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protected $raw_data; |
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/** |
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* Headers |
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* @var array |
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*/ |
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protected $headers; |
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/** |
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* Writing_On_GitHub_Request constructor. |
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* |
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* @param Writing_On_GitHub $app Application container. |
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*/ |
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public function __construct( Writing_On_GitHub $app ) { |
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$this->app = $app; |
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} |
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/** |
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* Validates the header's secret. |
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* |
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* @return true|WP_Error |
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*/ |
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public function is_secret_valid() { |
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$headers = $this->headers(); |
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$this->raw_data = $this->read_raw_data(); |
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// Validate request secret. |
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$hash = hash_hmac( 'sha1', $this->raw_data, $this->secret() ); |
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if ( 'sha1=' . $hash !== $headers['X-Hub-Signature'] ) { |
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return false; |
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} |
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// [X-Hub-Signature] => sha1=3cf3da70de401f7dfff053392f60cc534efed3b4 |
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// [Content-Type] => application/json |
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// [X-Github-Delivery] => b2102500-0acf-11e7-8acb-fd86a3497c2f |
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// [X-Github-Event] => ping |
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return true; |
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} |
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/** |
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* Validates the ping event. |
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* @return boolean |
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*/ |
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public function is_ping() { |
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return 'ping' == $this->webhook_event(); |
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} |
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/** |
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* Validates the push event. |
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* @return boolean |
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*/ |
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public function is_push() { |
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return 'push' == $this->webhook_event(); |
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} |
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/** |
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* Return X-Github-Event in headers. |
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* @return string |
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*/ |
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public function webhook_event() { |
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$headers = $this->headers(); |
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return $headers['X-Github-Event']; |
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} |
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/** |
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* Returns a payload object for the given request. |
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* |
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* @return Writing_On_GitHub_Payload |
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*/ |
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public function payload() { |
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return new Writing_On_GitHub_Payload( $this->app, $this->raw_data ); |
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} |
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/** |
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* Cross-server header support. |
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* |
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* Returns an array of the request's headers. |
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* |
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* @return array |
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*/ |
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protected function headers() { |
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if ( ! empty( $this->headers ) ) { |
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return $this->headers; |
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} |
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$this->headers = array(); |
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if ( function_exists( 'getallheaders' ) ) { |
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$headers = getallheaders(); |
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// github webhook |
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// content-type: application/json |
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// Expect: |
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// User-Agent: GitHub-Hookshot/7a71d82 |
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// X-GitHub-Delivery: a331b200-2537-11e8-9d7e-ce0853020b44 |
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// X-GitHub-Event: push |
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// X-Hub-Signature: sha1=98185ffa2c4684c9a1324c57086709acca9dddc7 |
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foreach ( $headers as $name => $value ) { |
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$this->headers[ str_replace( ' ', '-', ucwords( strtolower( str_replace( '-', ' ', $name ) ) ) ) ] = $value; |
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} |
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} else { |
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/** |
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* Nginx and pre 5.4 workaround. |
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* @see http://www.php.net/manual/en/function.getallheaders.php |
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*/ |
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foreach ( $_SERVER as $name => $value ) { |
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if ( 'HTTP_' === substr( $name, 0, 5 ) ) { |
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$this->headers[ str_replace( ' ', '-', ucwords( strtolower( str_replace( '_', ' ', substr( $name, 5 ) ) ) ) ) ] = $value; |
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} |
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} |
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} |
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return $this->headers; |
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} |
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/** |
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* Reads the raw data from STDIN. |
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* |
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* @return string |
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*/ |
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protected function read_raw_data() { |
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return file_get_contents( 'php://input' ); |
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} |
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/** |
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* Returns the Webhook secret |
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* |
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* @return string |
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*/ |
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protected function secret() { |
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return get_option( 'wogh_secret' ); |
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} |
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} |
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litefeel /
writing-on-github
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