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1 | <?php |
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2 | /** |
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3 | * Kotori.php |
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4 | * |
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5 | * A Tiny Model-View-Controller PHP Framework |
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6 | * |
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7 | * This content is released under the Apache 2 License |
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8 | * |
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9 | * Copyright (c) 2015-2017 Kotori Technology. All rights reserved. |
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10 | * |
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11 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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12 | * you may not use this file except in compliance with the License. |
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13 | * You may obtain a copy of the License at |
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14 | * |
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15 | * http://www.apache.org/licenses/LICENSE-2.0 |
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16 | * |
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17 | * Unless required by applicable law or agreed to in writing, software |
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18 | * distributed under the License is distributed on an "AS IS" BASIS, |
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19 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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20 | * See the License for the specific language governing permissions and |
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21 | * limitations under the License. |
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22 | */ |
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23 | |||
24 | /** |
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25 | * Memcached Session Class |
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26 | * |
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27 | * @package Kotori |
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28 | * @subpackage Session |
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29 | * @author Kokororin |
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30 | * @link https://kotori.love |
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31 | */ |
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32 | namespace Kotori\Http\Session; |
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33 | |||
34 | use Kotori\Core\Cache\Redis as RedisDriver; |
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35 | use SessionHandlerInterface; |
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36 | |||
37 | class Redis implements SessionHandlerInterface |
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38 | { |
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39 | /** |
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40 | * Default configuration |
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41 | * |
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42 | * @var array |
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43 | */ |
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44 | protected $config = [ |
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45 | 'host' => '127.0.0.1', |
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46 | 'port' => 6379, |
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47 | 'password' => null, |
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48 | 'database' => 0, |
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49 | 'expire' => 3600, |
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50 | 'timeout' => 0, |
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51 | 'prefix' => '', |
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52 | ]; |
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53 | |||
54 | /** |
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55 | * Class constructor |
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56 | * |
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57 | * Setup Redis |
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58 | * |
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59 | * @param array $config |
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60 | * @return void |
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61 | */ |
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62 | public function __construct($config = []) |
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63 | { |
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64 | $this->config = array_merge($this->config, $config); |
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65 | } |
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66 | |||
67 | /** |
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68 | * Open session |
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69 | * |
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70 | * @param string $savePath |
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71 | * @param mixed $sessName |
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72 | * @return boolean |
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73 | */ |
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74 | // @codingStandardsIgnoreStart |
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75 | public function open($savePath, $sessName) |
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76 | { |
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77 | $this->redisDriver = new RedisDriver($this->config); |
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78 | return true; |
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79 | } |
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80 | // @codingStandardsIgnoreEnd |
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81 | |||
82 | /** |
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83 | * Close session |
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84 | * |
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85 | * @return boolean |
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86 | */ |
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87 | public function close() |
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88 | { |
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89 | $this->gc(ini_get('session.gc_maxlifetime')); |
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90 | $this->redisDriver = null; |
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91 | return true; |
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92 | } |
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93 | |||
94 | /** |
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95 | * Read session |
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96 | * |
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97 | * @param string $sessID |
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98 | * @return string |
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99 | */ |
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100 | public function read($sessID) |
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101 | { |
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102 | return (string) $this->redisDriver->get($this->config['prefix'] . $sessID); |
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103 | } |
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104 | |||
105 | /** |
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106 | * Write session |
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107 | * |
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108 | * @param string $sessID |
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109 | * @param String $sessData |
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110 | * @return boolean |
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111 | */ |
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112 | public function write($sessID, $sessData) |
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113 | { |
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114 | return $this->redisDriver->set($this->config['prefix'] . $sessID, $sessData, $this->config['expire']); |
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115 | } |
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116 | |||
117 | /** |
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118 | * Delete session |
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119 | * |
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120 | * @param string $sessID |
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121 | * @return boolean |
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122 | */ |
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123 | public function destroy($sessID) |
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124 | { |
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125 | return $this->redisDriver->delete($this->config['prefix'] . $sessID); |
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126 | } |
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127 | |||
128 | /** |
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129 | * do garbage collection |
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130 | * |
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131 | * @param string $sessMaxLifeTime |
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132 | * @return boolean |
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133 | */ |
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134 | public function gc($sessMaxLifeTime) |
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135 | { |
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136 | return true; |
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137 | } |
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138 | } |
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139 |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: