blob: 073daaf687ad7fd91fb79a04643d15918874a8c6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
<?php
/*
* This file is part of SwiftMailer.
* (c) 2004-2009 Chris Corbyn
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Handles Base 64 Transfer Encoding in Swift Mailer.
*
* @author Chris Corbyn
*/
class Swift_Mime_ContentEncoder_Base64ContentEncoder extends Swift_Encoder_Base64Encoder implements Swift_Mime_ContentEncoder
{
/**
* Encode stream $in to stream $out.
*
* @param Swift_OutputByteStream $os
* @param Swift_InputByteStream $is
* @param int $firstLineOffset
* @param int $maxLineLength, optional, 0 indicates the default of 76 bytes
*/
public function encodeByteStream(Swift_OutputByteStream $os, Swift_InputByteStream $is, $firstLineOffset = 0, $maxLineLength = 0)
{
if (0 >= $maxLineLength || 76 < $maxLineLength) {
$maxLineLength = 76;
}
$remainder = 0;
while (false !== $bytes = $os->read(8190)) {
$encoded = base64_encode($bytes);
$encodedTransformed = '';
$thisMaxLineLength = $maxLineLength - $remainder - $firstLineOffset;
while ($thisMaxLineLength < strlen($encoded)) {
$encodedTransformed .= substr($encoded, 0, $thisMaxLineLength) . "\r\n";
$firstLineOffset = 0;
$encoded = substr($encoded, $thisMaxLineLength);
$thisMaxLineLength = $maxLineLength;
$remainder = 0;
}
if (0 < $remainingLength = strlen($encoded)) {
$remainder += $remainingLength;
$encodedTransformed .= $encoded;
$encoded = null;
}
$is->write($encodedTransformed);
}
}
/**
* Get the name of this encoding scheme.
* Returns the string 'base64'.
*
* @return string
*/
public function getName()
{
return 'base64';
}
}
|
