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:	*
19:	* @param string[] $rawHeaders
20:	*
21:	* @return array
22:	*/
23:	public static function parseRawHeaders(array $rawHeaders): array
24:	{
25:	$headers = array();
26:	$key = '';
27:	foreach ($rawHeaders as $rawHeader) {
28:	$rawHeaderLineParts = explode(':', $rawHeader, 2);
29:	if (isset($rawHeaderLineParts[1])) {
30:	$key = $rawHeaderLineParts[0];
31:	$value = trim($rawHeaderLineParts[1]);
32:	if (!isset($headers[$key])) {
33:	$headers[$key] = $value;
34:	} elseif (is_array($headers[$key])) {
35:	$headers[$key][] = $value;
36:	} else {
37:	$headers[$key] = array($headers[$key], $value);
38:	}
39:	} elseif (strlen($rawHeaderLineParts[0]) > 0) {
40:	if (!$key) {
41:	$headers[0] = trim($rawHeaderLineParts[0]);
42:	} elseif (in_array(substr($rawHeaderLineParts[0], 0, 1), array(' ', "\t"))) {
43:	if (is_array($headers[$key])) {
44:	$lastValue = array_pop($headers[$key]);
45:	$headers[$key][] = $lastValue . "\r\n" . rtrim($rawHeaderLineParts[0]);
46:	} else {
47:	$headers[$key] .= "\r\n" . rtrim($rawHeaderLineParts[0]);
48:	}
49:	}
50:	}
51:	}
52:	return $headers;
53:	}
54:
55:	/**
56:	* Generates an array of raw headers from an associative array of headers with the same structure as the output
57:	* of the get_headers method using the $format = 1 parameter
58:	*
59:	* @param array $headers
60:	*
61:	* @return string[]
62:	*/
63:	public static function generateRawHeaders(array $headers): array
64:	{
65:	$rawHeaders = array();
66:	foreach ($headers as $key => $values) {
67:	if (!is_array($values)) {
68:	$values = array($values);
69:	}
70:	foreach ($values as $value) {
71:	if ($key !== 0) {
72:	$rawHeader = $key . ': ' . $value;
73:	} else {
74:	$rawHeader = $value;
75:	}
76:	foreach (explode("\r\n", $rawHeader) as $singleLineRawHeader) {
77:	$rawHeaders[] = $singleLineRawHeader;
78:	}
79:	}
80:	}
81:	return $rawHeaders;
82:	}
83:	}
84:

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