File lib/Worldline/Connect/Sdk/Communication/HttpHeaderHelper.php

1:	<?php
2:	namespace Worldline\Connect\Sdk\Communication;
3:
4:	/**
5:	* Class HttpHeaderHelper
6:	*
7:	* @package Worldline\Connect\Sdk\Communication
8:	*/
9:	class HttpHeaderHelper
10:	{
11:	private function __construct()
12:	{
13:	}
14:
15:	/**
16:	* Parses a raw array of HTTP headers into an associative array with the same structure as the output
17:	* of the get_headers method using the $format = 1 parameter
18:	* @param string[] $rawHeaders
19:	* @return array
20:	*/
21:	public static function parseRawHeaders(array $rawHeaders)
22:	{
23:	$headers = array();
24:	$key = '';
25:	foreach ($rawHeaders as $rawHeader) {
26:	$rawHeaderLineParts = explode(':', $rawHeader, 2);
27:	if (isset($rawHeaderLineParts[1])) {
28:	$key = $rawHeaderLineParts[0];
29:	$value = trim($rawHeaderLineParts[1]);
30:	if (!isset($headers[$key])) {
31:	$headers[$key] = $value;
32:	} elseif (is_array($headers[$key])) {
33:	$headers[$key][] = $value;
34:	} else {
35:	$headers[$key] = array($headers[$key], $value);
36:	}
37:	} elseif (strlen($rawHeaderLineParts[0]) > 0) {
38:	if (!$key) {
39:	$headers[0] = trim($rawHeaderLineParts[0]);
40:	} elseif (in_array(substr($rawHeaderLineParts[0], 0, 1), array(' ', "\t"))) {
41:	if (is_array($headers[$key])) {
42:	$lastValue = array_pop($headers[$key]);
43:	$headers[$key][] = $lastValue . "\r\n" . rtrim($rawHeaderLineParts[0]);
44:	} else {
45:	$headers[$key] .= "\r\n" . rtrim($rawHeaderLineParts[0]);
46:	}
47:	}
48:	}
49:	}
50:	return $headers;
51:	}
52:
53:	/**
54:	* Generates an array of raw headers from an associative array of headers with the same structure as the output
55:	* of the get_headers method using the $format = 1 parameter
56:	* @param array $headers
57:	* @return string[]
58:	*/
59:	public static function generateRawHeaders(array $headers)
60:	{
61:	$rawHeaders = array();
62:	foreach ($headers as $key => $values) {
63:	if (!is_array($values)) {
64:	$values = array($values);
65:	}
66:	foreach ($values as $value) {
67:	if ($key !== 0) {
68:	$rawHeader = $key . ': ' . $value;
69:	} else {
70:	$rawHeader = $value;
71:	}
72:	foreach (explode("\r\n", $rawHeader) as $singleLineRawHeader) {
73:	$rawHeaders[] = $singleLineRawHeader;
74:	}
75:	}
76:	}
77:	return $rawHeaders;
78:	}
79:	}
80:

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