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
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
<?php
namespace SimpleSAML\Store;
use \SimpleSAML_Configuration as Configuration;
use \SimpleSAML\Store;
/**
* A data store using Redis to keep the data.
*
* @package SimpleSAMLphp
*/
class Redis extends Store
{
public $redis;
/**
* Initialize the Redis data store.
*/
public function __construct($redis = null)
{
assert($redis === null || is_subclass_of($redis, 'Predis\\Client'));
if (!class_exists('\Predis\Client')) {
throw new \SimpleSAML\Error\CriticalConfigurationError('predis/predis is not available.');
}
if ($redis === null) {
$config = Configuration::getInstance();
$host = $config->getString('store.redis.host', 'localhost');
$port = $config->getInteger('store.redis.port', 6379);
$prefix = $config->getString('store.redis.prefix', 'SimpleSAMLphp');
$redis = new \Predis\Client(
array(
'scheme' => 'tcp',
'host' => $host,
'port' => $port,
),
array(
'prefix' => $prefix,
)
);
}
$this->redis = $redis;
}
/**
* Deconstruct the Redis data store.
*/
public function __destruct()
{
if (method_exists($this->redis, 'disconnect')) {
$this->redis->disconnect();
}
}
/**
* Retrieve a value from the data store.
*
* @param string $type The type of the data.
* @param string $key The key to retrieve.
*
* @return mixed|null The value associated with that key, or null if there's no such key.
*/
public function get($type, $key)
{
assert(is_string($type));
assert(is_string($key));
$result = $this->redis->get("{$type}.{$key}");
if ($result === false || $result === null) {
return null;
}
return unserialize($result);
}
/**
* Save a value in the data store.
*
* @param string $type The type of the data.
* @param string $key The key to insert.
* @param mixed $value The value itself.
* @param int|null $expire The expiration time (unix timestamp), or null if it never expires.
*/
public function set($type, $key, $value, $expire = null)
{
assert(is_string($type));
assert(is_string($key));
assert($expire === null || (is_int($expire) && $expire > 2592000));
$serialized = serialize($value);
if ($expire === null) {
$this->redis->set("{$type}.{$key}", $serialized);
} else {
// setex expire time is in seconds (not unix timestamp)
$this->redis->setex("{$type}.{$key}", $expire - time(), $serialized);
}
}
/**
* Delete an entry from the data store.
*
* @param string $type The type of the data
* @param string $key The key to delete.
*/
public function delete($type, $key)
{
assert(is_string($type));
assert(is_string($key));
$this->redis->del("{$type}.{$key}");
}
}
|
