|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Kodus\Mail\Test\Unit; |
|
4
|
|
|
|
|
5
|
|
|
use Kodus\Mail\SMTP\SMTPDotStuffingFilter; |
|
6
|
|
|
use UnitTester; |
|
7
|
|
|
|
|
8
|
|
|
/** |
|
9
|
|
|
* This is a pretty complex test for a fairly simple piece of code, but I had to be sure. |
|
10
|
|
|
* |
|
11
|
|
|
* The dot-stuffing filter has to maintain a two-byte trailing buffer from the previous |
|
12
|
|
|
* chunk, so as not to miss an "\r\n." sequence that started in the previous chunk. |
|
13
|
|
|
* |
|
14
|
|
|
* The test below attempts many different buffer-sizes, so that we're sure to hit the |
|
15
|
|
|
* edge-cases where an "\r\n." sequence spans two chunks. |
|
16
|
|
|
*/ |
|
17
|
|
|
class SMTPDotStuffingCest |
|
18
|
|
|
{ |
|
19
|
|
|
public function performDotStuffing(UnitTester $I) |
|
20
|
|
|
{ |
|
21
|
|
|
$data = str_repeat("aaaaa.aaaaa\r\n.", 100); |
|
22
|
|
|
|
|
23
|
|
|
$expected = $this->stuffDots($data); |
|
24
|
|
|
|
|
25
|
|
|
for ($chunk_size=1; $chunk_size<100; $chunk_size++) { |
|
26
|
|
|
$I->assertSame( |
|
27
|
|
|
$expected, |
|
28
|
|
|
$this->stuffDotsWithFilter($data, $chunk_size), |
|
29
|
|
|
"testing with chunk-size of {$chunk_size}" |
|
30
|
|
|
); |
|
31
|
|
|
} |
|
32
|
|
|
} |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* Correctly stuffs dots using a non-chunked str_replace() - guaranteed to work |
|
36
|
|
|
* |
|
37
|
|
|
* @param string $data |
|
38
|
|
|
* |
|
39
|
|
|
* @return mixed |
|
40
|
|
|
*/ |
|
41
|
|
|
private function stuffDots($data) |
|
42
|
|
|
{ |
|
43
|
|
|
return str_replace("\r\n.", "\r\n..", $data); |
|
44
|
|
|
} |
|
45
|
|
|
|
|
46
|
|
|
/** |
|
47
|
|
|
* Simulate a specified buffer-size and processes data in chunks. |
|
48
|
|
|
* |
|
49
|
|
|
* @param string $data |
|
50
|
|
|
* @param int $chunk_size |
|
51
|
|
|
* |
|
52
|
|
|
* @return string |
|
53
|
|
|
*/ |
|
54
|
|
|
private function stuffDotsWithFilter($data, $chunk_size) |
|
55
|
|
|
{ |
|
56
|
|
|
$stream = fopen("php://temp", "rw+"); |
|
57
|
|
|
|
|
58
|
|
|
stream_set_write_buffer($stream, $chunk_size); |
|
59
|
|
|
|
|
60
|
|
|
$filter = stream_filter_append($stream, SMTPDotStuffingFilter::FILTER_NAME, STREAM_FILTER_WRITE); |
|
61
|
|
|
|
|
62
|
|
|
$chunks = str_split($data, $chunk_size); |
|
63
|
|
|
|
|
64
|
|
|
foreach ($chunks as $chunk) { |
|
65
|
|
|
fwrite($stream, $chunk); |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
stream_filter_remove($filter); |
|
69
|
|
|
|
|
70
|
|
|
rewind($stream); |
|
71
|
|
|
|
|
72
|
|
|
$contents = stream_get_contents($stream); |
|
73
|
|
|
|
|
74
|
|
|
fclose($stream); |
|
75
|
|
|
|
|
76
|
|
|
return $contents; |
|
77
|
|
|
} |
|
78
|
|
|
} |
|
79
|
|
|
|
kodus /
mail
