aboutsummaryrefslogtreecommitdiffstats
path: root/phpBB/phpbb/config_php_file.php
blob: 7445e7df228f01e2716a14a56720b8398d9f8b4e (plain)
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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/

namespace phpbb;

class config_php_file
{
	/** @var string phpBB Root Path */
	protected $phpbb_root_path;

	/** @var string php file extension  */
	protected $php_ext;

	/**
	* Indicates whether the php config file has been loaded.
	*
	* @var bool
	*/
	protected $config_loaded = false;

	/**
	* The content of the php config file
	*
	* @var array
	*/
	protected $config_data = array();

	/**
	* The path to the config file. (Default: $phpbb_root_path . 'config.' . $php_ext)
	*
	* @var string
	*/
	protected $config_file;

	private $defined_vars;

	/**
	* Constructor
	*
	* @param string $phpbb_root_path phpBB Root Path
	* @param string $php_ext php file extension
	*/
	function __construct($phpbb_root_path, $php_ext)
	{
		$this->phpbb_root_path = $phpbb_root_path;
		$this->php_ext = $php_ext;
		$this->config_file = $this->phpbb_root_path . 'config.' . $this->php_ext;
	}

	/**
	* Set the path to the config file.
	*
	* @param string $config_file
	*/
	public function set_config_file($config_file)
	{
		$this->config_file = $config_file;
		$this->config_loaded = false;
	}

	/**
	* Returns an associative array containing the variables defined by the config file.
	*
	* @return array Return the content of the config file or an empty array if the file does not exists.
	*/
	public function get_all()
	{
		$this->load_config_file();

		return $this->config_data;
	}

	/**
	* Return the value of a variable defined into the config.php file or null if the variable does not exist.
	*
	* @param string $variable The name of the variable
	* @return mixed Value of the variable or null if the variable is not defined.
	*/
	public function get($variable)
	{
		$this->load_config_file();

		return isset($this->config_data[$variable]) ? $this->config_data[$variable] : null;
	}

	/**
	* Load the config file and store the information.
	*
	* @return null
	*/
	protected function load_config_file()
	{
		if (!$this->config_loaded && file_exists($this->config_file))
		{
			$this->defined_vars = get_defined_vars();

			require($this->config_file);
			$this->config_data = array_diff_key(get_defined_vars(), $this->defined_vars);

			$this->config_loaded = true;
		}
	}

	/**
	* Convert either 3.0 dbms or 3.1 db driver class name to 3.1 db driver class name.
	*
	* If $dbms is a valid 3.1 db driver class name, returns it unchanged.
	* Otherwise prepends phpbb\db\driver\ to the dbms to convert a 3.0 dbms
	* to 3.1 db driver class name.
	*
	* @param string $dbms dbms parameter
	* @return string driver class
	* @throws \RuntimeException
	*/
	public function convert_30_dbms_to_31($dbms)
	{
		// Note: this check is done first because mysqli extension
		// supplies a mysqli class, and class_exists($dbms) would return
		// true for mysqli class.
		// However, per the docblock any valid 3.1 driver name should be
		// recognized by this function, and have priority over 3.0 dbms.
		if (strpos($dbms, 'phpbb\db\driver') === false && class_exists('phpbb\db\driver\\' . $dbms))
		{
			return 'phpbb\db\driver\\' . $dbms;
		}

		if (class_exists($dbms))
		{
			// Additionally we could check that $dbms extends phpbb\db\driver\driver.
			// http://php.net/manual/en/class.reflectionclass.php
			// Beware of possible performance issues:
			// http://stackoverflow.com/questions/294582/php-5-reflection-api-performance
			// We could check for interface implementation in all paths or
			// only when we do not prepend phpbb\db\driver\.

			/*
			$reflection = new \ReflectionClass($dbms);

			if ($reflection->isSubclassOf('phpbb\db\driver\driver'))
			{
				return $dbms;
			}
			*/

			return $dbms;
		}

		throw new \RuntimeException("You have specified an invalid dbms driver: $dbms");
	}
}