email-log / include / Util / EmailHeaderParser.php

EmailHeaderParser.php in Email Log 2.61, at include/Util/EmailHeaderParser.php

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1	<?php namespace EmailLog\Util;
2
3	/**
4	* Email Header Parser.
5	*
6	* @author Sudar
7	*/
8	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	public function join_headers( $data ) {
27	$headers = '';
28
29	if ( ! empty( $data['from'] ) ) {
30	$headers .= 'From: ' . $data['from'] . "\r\n";
31	}
32
33	if ( ! empty( $data['cc'] ) ) {
34	$headers .= 'CC: ' . $data['cc'] . "\r\n";
35	}
36
37	if ( ! empty( $data['bcc'] ) ) {
38	$headers .= 'BCC: ' . $data['bcc'] . "\r\n";
39	}
40
41	if ( ! empty( $data['reply_to'] ) ) {
42	$headers .= 'Reply-to: ' . $data['reply_to'] . "\r\n";
43	}
44
45	if ( ! empty( $data['content_type'] ) ) {
46	$headers .= 'Content-type: ' . $data['content_type'] . "\r\n";
47	}
48
49	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	public function parse_headers( $headers ) {
60	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	private function parse( $headers ) {
73	$data = array();
74	$arr_headers = explode( "\n", $headers );
75
76	foreach ( $arr_headers as $header ) {
77	$split_header = explode( ':', $header );
78	$value = $this->parse_header_line( $split_header );
79
80	if ( trim( $value ) != '' ) {
81	switch ( strtolower( $split_header[0] ) ) {
82	case 'from':
83	$data['from'] = $value;
84	break;
85
86	case 'cc':
87	$data['cc'] = $value;
88	break;
89
90	case 'bcc':
91	$data['bcc'] = $value;
92	break;
93
94	case 'reply-to':
95	$data['reply_to'] = $value;
96	break;
97
98	case 'content-type':
99	$data['content_type'] = $value;
100	break;
101	}
102	}
103	}
104
105	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	private function parse_header_line( $header ) {
119	$value = '';
120	if ( 2 == count( $header ) ) {
121	if ( is_array( $header[1] ) ) {
122	$value = trim( implode( ',', array_map( 'trim', $header[1] ) ) );
123	} else {
124	$value = trim( $header[1] );
125	}
126	}
127
128	return $value;
129	}
130	}
131