1
|
|
|
<?php |
2
|
|
|
/* |
3
|
|
|
* File: ImapProtocol.php |
4
|
|
|
* Category: Protocol |
5
|
|
|
* Author: M.Goldenbaum |
6
|
|
|
* Created: 16.09.20 18:27 |
7
|
|
|
* Updated: - |
8
|
|
|
* |
9
|
|
|
* Description: |
10
|
|
|
* - |
11
|
|
|
*/ |
12
|
|
|
|
13
|
|
|
namespace Webklex\PHPIMAP\Connection\Protocols; |
14
|
|
|
|
15
|
|
|
use Webklex\PHPIMAP\Exceptions\ConnectionFailedException; |
16
|
|
|
use Webklex\PHPIMAP\IMAP; |
17
|
|
|
|
18
|
|
|
/** |
19
|
|
|
* Class Protocol |
20
|
|
|
* |
21
|
|
|
* @package Webklex\PHPIMAP\Connection\Protocols |
22
|
|
|
*/ |
23
|
|
|
abstract class Protocol implements ProtocolInterface { |
24
|
|
|
|
25
|
|
|
/** |
26
|
|
|
* Default connection timeout in seconds |
27
|
|
|
*/ |
28
|
|
|
protected $connection_timeout = 30; |
29
|
|
|
|
30
|
|
|
/** |
31
|
|
|
* @var boolean |
32
|
|
|
*/ |
33
|
|
|
protected $debug = false; |
34
|
|
|
|
35
|
|
|
/** |
36
|
|
|
* @var false|resource |
37
|
|
|
*/ |
38
|
|
|
public $stream = false; |
39
|
|
|
|
40
|
|
|
/** |
41
|
|
|
* Connection encryption method |
42
|
|
|
* @var mixed $encryption |
43
|
|
|
*/ |
44
|
|
|
protected $encryption = false; |
45
|
|
|
|
46
|
|
|
/** |
47
|
|
|
* Set to false to ignore SSL certificate validation |
48
|
|
|
* @var bool |
49
|
|
|
*/ |
50
|
|
|
protected $cert_validation = true; |
51
|
|
|
|
52
|
|
|
/** |
53
|
|
|
* Proxy settings |
54
|
|
|
* @var array |
55
|
|
|
*/ |
56
|
|
|
protected $proxy = [ |
57
|
|
|
'socket' => null, |
58
|
|
|
'request_fulluri' => false, |
59
|
|
|
'username' => null, |
60
|
|
|
'password' => null, |
61
|
|
|
]; |
62
|
|
|
|
63
|
|
|
/** |
64
|
|
|
* Get an available cryptographic method |
65
|
|
|
* |
66
|
|
|
* @return int |
67
|
|
|
*/ |
68
|
|
|
public function getCryptoMethod() { |
69
|
|
|
// Allow the best TLS version(s) we can |
70
|
|
|
$cryptoMethod = STREAM_CRYPTO_METHOD_TLS_CLIENT; |
71
|
|
|
|
72
|
|
|
// PHP 5.6.7 dropped inclusion of TLS 1.1 and 1.2 in STREAM_CRYPTO_METHOD_TLS_CLIENT |
73
|
|
|
// so add them back in manually if we can |
74
|
|
|
if (defined('STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT')) { |
75
|
|
|
$cryptoMethod = STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT; |
76
|
|
|
}elseif (defined('STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT')) { |
77
|
|
|
$cryptoMethod = STREAM_CRYPTO_METHOD_TLSv1_1_CLIENT; |
78
|
|
|
} |
79
|
|
|
|
80
|
|
|
return $cryptoMethod; |
81
|
|
|
} |
82
|
|
|
|
83
|
|
|
/** |
84
|
|
|
* Enable SSL certificate validation |
85
|
|
|
* |
86
|
|
|
* @return $this |
87
|
|
|
*/ |
88
|
|
|
public function enableCertValidation() { |
89
|
|
|
$this->cert_validation = true; |
90
|
|
|
return $this; |
91
|
|
|
} |
92
|
|
|
|
93
|
|
|
/** |
94
|
|
|
* Disable SSL certificate validation |
95
|
|
|
* @return $this |
96
|
|
|
*/ |
97
|
|
|
public function disableCertValidation() { |
98
|
|
|
$this->cert_validation = false; |
99
|
|
|
return $this; |
100
|
|
|
} |
101
|
|
|
|
102
|
|
|
/** |
103
|
|
|
* Set SSL certificate validation |
104
|
|
|
* @var int $cert_validation |
105
|
|
|
* |
106
|
|
|
* @return $this |
107
|
|
|
*/ |
108
|
|
|
public function setCertValidation($cert_validation) { |
109
|
|
|
$this->cert_validation = $cert_validation; |
|
|
|
|
110
|
|
|
return $this; |
111
|
|
|
} |
112
|
|
|
|
113
|
|
|
/** |
114
|
|
|
* Should we validate SSL certificate? |
115
|
|
|
* |
116
|
|
|
* @return bool |
117
|
|
|
*/ |
118
|
|
|
public function getCertValidation() { |
119
|
|
|
return $this->cert_validation; |
120
|
|
|
} |
121
|
|
|
|
122
|
|
|
/** |
123
|
|
|
* Set connection proxy settings |
124
|
|
|
* @var array $options |
125
|
|
|
* |
126
|
|
|
* @return $this |
127
|
|
|
*/ |
128
|
|
|
public function setProxy($options) { |
129
|
|
|
foreach ($this->proxy as $key => $val) { |
130
|
|
|
if (isset($options[$key])) { |
131
|
|
|
$this->proxy[$key] = $options[$key]; |
132
|
|
|
} |
133
|
|
|
} |
134
|
|
|
|
135
|
|
|
return $this; |
136
|
|
|
} |
137
|
|
|
|
138
|
|
|
/** |
139
|
|
|
* Get the current proxy settings |
140
|
|
|
* |
141
|
|
|
* @return array |
142
|
|
|
*/ |
143
|
|
|
public function getProxy() { |
144
|
|
|
return $this->proxy; |
145
|
|
|
} |
146
|
|
|
|
147
|
|
|
/** |
148
|
|
|
* Prepare socket options |
149
|
|
|
* @var string $transport |
150
|
|
|
* |
151
|
|
|
* @return array |
152
|
|
|
*/ |
153
|
|
|
private function defaultSocketOptions($transport) { |
154
|
|
|
$options = []; |
155
|
|
|
if ($this->encryption != false) { |
156
|
|
|
$options["ssl"] = [ |
157
|
|
|
'verify_peer_name' => $this->getCertValidation(), |
158
|
|
|
'verify_peer' => $this->getCertValidation(), |
159
|
|
|
]; |
160
|
|
|
} |
161
|
|
|
|
162
|
|
|
if ($this->proxy["socket"] != null) { |
163
|
|
|
$options[$transport]["proxy"] = $this->proxy["socket"]; |
164
|
|
|
$options[$transport]["request_fulluri"] = $this->proxy["request_fulluri"]; |
165
|
|
|
|
166
|
|
|
if ($this->proxy["username"] != null) { |
167
|
|
|
$auth = base64_encode($this->proxy["username"].':'.$this->proxy["password"]); |
168
|
|
|
|
169
|
|
|
$options[$transport]["header"] = [ |
170
|
|
|
"Proxy-Authorization: Basic $auth" |
171
|
|
|
]; |
172
|
|
|
} |
173
|
|
|
} |
174
|
|
|
|
175
|
|
|
return $options; |
176
|
|
|
} |
177
|
|
|
|
178
|
|
|
/** |
179
|
|
|
* Create a new resource stream |
180
|
|
|
* @param $transport |
181
|
|
|
* @param string $host hostname or IP address of IMAP server |
182
|
|
|
* @param int $port of IMAP server, default is 143 (993 for ssl) |
183
|
|
|
* @param int $timeout timeout in seconds for initiating session |
184
|
|
|
* |
185
|
|
|
* @return resource|boolean The socket created. |
186
|
|
|
* @throws ConnectionFailedException |
187
|
|
|
*/ |
188
|
|
|
protected function createStream($transport, $host, $port, $timeout) { |
189
|
|
|
$socket = "$transport://$host:$port"; |
190
|
|
|
$stream = stream_socket_client($socket, $errno, $errstr, $timeout, |
191
|
|
|
STREAM_CLIENT_CONNECT, |
192
|
|
|
stream_context_create($this->defaultSocketOptions($transport)) |
193
|
|
|
); |
194
|
|
|
|
195
|
|
|
if (!$stream) { |
|
|
|
|
196
|
|
|
throw new ConnectionFailedException($errstr, $errno); |
197
|
|
|
} |
198
|
|
|
|
199
|
|
|
if (false === stream_set_timeout($stream, $timeout)) { |
200
|
|
|
throw new ConnectionFailedException('Failed to set stream timeout'); |
201
|
|
|
} |
202
|
|
|
|
203
|
|
|
return $stream; |
204
|
|
|
} |
205
|
|
|
|
206
|
|
|
/** |
207
|
|
|
* @return int |
208
|
|
|
*/ |
209
|
|
|
public function getConnectionTimeout() { |
210
|
|
|
return $this->connection_timeout; |
211
|
|
|
} |
212
|
|
|
|
213
|
|
|
/** |
214
|
|
|
* @param int $connection_timeout |
215
|
|
|
* @return Protocol |
216
|
|
|
*/ |
217
|
|
|
public function setConnectionTimeout($connection_timeout) { |
218
|
|
|
if ($connection_timeout !== null) { |
|
|
|
|
219
|
|
|
$this->connection_timeout = $connection_timeout; |
220
|
|
|
} |
221
|
|
|
return $this; |
222
|
|
|
} |
223
|
|
|
|
224
|
|
|
/** |
225
|
|
|
* Get the UID key string |
226
|
|
|
* @param int|string $uid |
227
|
|
|
* |
228
|
|
|
* @return string |
229
|
|
|
*/ |
230
|
|
|
public function getUIDKey($uid) { |
231
|
|
|
if ($uid == IMAP::ST_UID || $uid == IMAP::FT_UID) { |
232
|
|
|
return "UID"; |
233
|
|
|
} |
234
|
|
|
if (strlen($uid) > 0 && !is_numeric($uid)) { |
235
|
|
|
return (string)$uid; |
236
|
|
|
} |
237
|
|
|
|
238
|
|
|
return ""; |
239
|
|
|
} |
240
|
|
|
|
241
|
|
|
public function buildUIDCommand($command, $uid) { |
242
|
|
|
return trim($this->getUIDKey($uid)." ".$command); |
243
|
|
|
} |
244
|
|
|
|
245
|
|
|
} |
This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.