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1 | <?php |
2 | /** |
3 | * |
4 | * This file is part of the phpBB Forum Software package. |
5 | * |
6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
7 | * @license GNU General Public License, version 2 (GPL-2.0) |
8 | * |
9 | * For full copyright and license information, please see |
10 | * the docs/CREDITS.txt file. |
11 | * |
12 | */ |
13 | |
14 | namespace phpbb; |
15 | |
16 | class config_php_file |
17 | { |
18 | /** @var string phpBB Root Path */ |
19 | protected $phpbb_root_path; |
20 | |
21 | /** @var string php file extension */ |
22 | protected $php_ext; |
23 | |
24 | /** |
25 | * Indicates whether the php config file has been loaded. |
26 | * |
27 | * @var bool |
28 | */ |
29 | protected $config_loaded = false; |
30 | |
31 | /** |
32 | * The content of the php config file |
33 | * |
34 | * @var array |
35 | */ |
36 | protected $config_data = array(); |
37 | |
38 | /** |
39 | * The path to the config file. (Default: $phpbb_root_path . 'config.' . $php_ext) |
40 | * |
41 | * @var string |
42 | */ |
43 | protected $config_file; |
44 | |
45 | /** |
46 | * Constructor |
47 | * |
48 | * @param string $phpbb_root_path phpBB Root Path |
49 | * @param string $php_ext php file extension |
50 | */ |
51 | function __construct($phpbb_root_path, $php_ext) |
52 | { |
53 | $this->phpbb_root_path = $phpbb_root_path; |
54 | $this->php_ext = $php_ext; |
55 | $this->config_file = $this->phpbb_root_path . 'config.' . $this->php_ext; |
56 | } |
57 | |
58 | /** |
59 | * Set the path to the config file. |
60 | * |
61 | * @param string $config_file |
62 | */ |
63 | public function set_config_file($config_file) |
64 | { |
65 | $this->config_file = $config_file; |
66 | $this->config_loaded = false; |
67 | } |
68 | |
69 | /** |
70 | * Returns an associative array containing the variables defined by the config file. |
71 | * |
72 | * @return array Return the content of the config file or an empty array if the file does not exists. |
73 | */ |
74 | public function get_all() |
75 | { |
76 | $this->load_config_file(); |
77 | |
78 | return $this->config_data; |
79 | } |
80 | |
81 | /** |
82 | * Return the value of a variable defined into the config.php file or null if the variable does not exist. |
83 | * |
84 | * @param string $variable The name of the variable |
85 | * @return mixed Value of the variable or null if the variable is not defined. |
86 | */ |
87 | public function get($variable) |
88 | { |
89 | $this->load_config_file(); |
90 | |
91 | return isset($this->config_data[$variable]) ? $this->config_data[$variable] : null; |
92 | } |
93 | |
94 | /** |
95 | * Load the config file and store the information. |
96 | * |
97 | * @return void |
98 | */ |
99 | protected function load_config_file() |
100 | { |
101 | if (!$this->config_loaded && file_exists($this->config_file)) |
102 | { |
103 | $defined_vars = null; // Define variable before call get_defined_vars |
104 | $defined_vars = get_defined_vars(); |
105 | |
106 | require($this->config_file); |
107 | $this->config_data = array_diff_key(get_defined_vars(), $defined_vars); |
108 | |
109 | $this->config_loaded = true; |
110 | } |
111 | } |
112 | |
113 | /** |
114 | * Convert either 3.0 dbms or 3.1 db driver class name to 3.1 db driver class name. |
115 | * |
116 | * If $dbms is a valid 3.1 db driver class name, returns it unchanged. |
117 | * Otherwise prepends phpbb\db\driver\ to the dbms to convert a 3.0 dbms |
118 | * to 3.1 db driver class name. |
119 | * |
120 | * @param string $dbms dbms parameter |
121 | * @return string driver class |
122 | * @throws \RuntimeException |
123 | */ |
124 | public static function convert_30_dbms_to_31($dbms) |
125 | { |
126 | // Note: this check is done first because mysqli extension |
127 | // supplies a mysqli class, and class_exists($dbms) would return |
128 | // true for mysqli class. |
129 | // However, per the docblock any valid 3.1 driver name should be |
130 | // recognized by this function, and have priority over 3.0 dbms. |
131 | if (strpos($dbms, 'phpbb\db\driver') === false && class_exists('phpbb\db\driver\\' . $dbms)) |
132 | { |
133 | return 'phpbb\db\driver\\' . $dbms; |
134 | } |
135 | |
136 | if (class_exists($dbms)) |
137 | { |
138 | // Additionally we could check that $dbms extends phpbb\db\driver\driver. |
139 | // http://php.net/manual/en/class.reflectionclass.php |
140 | // Beware of possible performance issues: |
141 | // http://stackoverflow.com/questions/294582/php-5-reflection-api-performance |
142 | // We could check for interface implementation in all paths or |
143 | // only when we do not prepend phpbb\db\driver\. |
144 | |
145 | /* |
146 | $reflection = new \ReflectionClass($dbms); |
147 | |
148 | if ($reflection->isSubclassOf('phpbb\db\driver\driver')) |
149 | { |
150 | return $dbms; |
151 | } |
152 | */ |
153 | |
154 | return $dbms; |
155 | } |
156 | |
157 | // Force use of mysqli when specifying mysql |
158 | if (preg_match('/(phpbb\\\db\\\driver\\\)?mysql$/i', $dbms)) |
159 | { |
160 | return 'phpbb\db\driver\mysqli'; |
161 | } |
162 | |
163 | throw new \RuntimeException("You have specified an invalid dbms driver: $dbms"); |
164 | } |
165 | } |