| 1 |  |  | <?php namespace EmailLog\Util; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * Email Header Parser. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * @author Sudar | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 | 1 |  | defined( 'ABSPATH' ) || exit; // Exit if accessed directly | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * Class Email Header Parser. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * @since 1.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | class EmailHeaderParser { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | 	 * Join email headers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | 	 * @since 1.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | 	 * @param array $data Headers to be joined. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | 	 * @return string Joined headers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 | 3 |  | 	public function join_headers( $data ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 | 3 |  | 		$headers = ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 | 3 |  | 		if ( ! empty( $data['from'] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 | 2 |  | 			$headers .= 'From: ' . $data['from'] . "\r\n"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 | 3 |  | 		if ( ! empty( $data['cc'] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 | 1 |  | 			$headers .= 'CC: ' . $data['cc'] . "\r\n"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 | 3 |  | 		if ( ! empty( $data['bcc'] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 | 1 |  | 			$headers .= 'BCC: ' . $data['bcc'] . "\r\n"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 | 3 |  | 		if ( ! empty( $data['reply_to'] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 | 2 |  | 			$headers .= 'Reply-to: ' . $data['reply_to'] . "\r\n"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 | 3 |  | 		if ( ! empty( $data['content_type'] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 | 1 |  | 			$headers .= 'Content-type: ' . $data['content_type'] . "\r\n"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 | 3 |  | 		return $headers; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  | 	 * Return parsed headers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  | 	 * @param string $headers Headers to parse. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  | 	 * @return array Parsed Headers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 | 4 |  | 	public function parse_headers( $headers ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 | 4 |  | 		return $this->parse( $headers ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  | 	 * Parse Headers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  | 	 * @access private | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  | 	 * @param string $headers Headers to be parsed. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  | 	 * @return array Parsed headers. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 | 4 |  | 	private function parse( $headers ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 | 4 |  | 		$data        = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 | 4 |  | 		$arr_headers = explode( "\n", $headers ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 | 4 |  | 		foreach ( $arr_headers as $header ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 | 4 |  | 			$split_header = explode( ':', $header ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 | 4 |  | 			$value        = $this->parse_header_line( $split_header ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 | 4 |  | 			if ( trim( $value ) != '' ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 | 3 |  | 				switch ( strtolower( $split_header[0] ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 | 3 |  | 					case 'from': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 | 2 |  | 						$data['from'] = $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 | 2 |  | 						break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 | 3 |  | 					case 'cc': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 | 3 |  | 						$data['cc'] = $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 | 3 |  | 						break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 | 3 |  | 					case 'bcc': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 | 3 |  | 						$data['bcc'] = $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 | 3 |  | 						break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 | 3 |  | 					case 'reply-to': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 | 2 |  | 						$data['reply_to'] = $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 | 2 |  | 						break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 | 3 |  | 					case 'content-type': | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 | 3 |  | 						$data['content_type'] = $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 | 3 |  | 						break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  | 				} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 | 4 |  | 		return $data; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  | 	 * Parse individual header line. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  | 	 * @since  1.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  | 	 * @access private | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  | 	 * @param array $header Header line to be parsed. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  | 	 * @return string Parsed value. | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 117 |  |  | 	 */ | 
            
                                                                        
                            
            
                                    
            
            
                | 118 | 4 |  | 	private function parse_header_line( $header ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 119 | 4 |  | 		$value = ''; | 
            
                                                                        
                            
            
                                    
            
            
                | 120 | 4 |  | 		if ( 2 == count( $header ) ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 121 | 3 |  | 			if ( is_array( $header[1] ) ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 122 |  |  | 				$value = trim( implode( ',', array_map( 'trim', $header[1] ) ) ); | 
            
                                                                        
                            
            
                                    
            
            
                | 123 |  |  | 			} else { | 
            
                                                                        
                            
            
                                    
            
            
                | 124 | 3 |  | 				$value = trim( $header[1] ); | 
            
                                                                        
                            
            
                                    
            
            
                | 125 |  |  | 			} | 
            
                                                                        
                            
            
                                    
            
            
                | 126 |  |  | 		} | 
            
                                                                        
                            
            
                                    
            
            
                | 127 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 128 | 4 |  | 		return $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 130 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 131 |  |  |  |