| 1 | <?php
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| 2 | /**
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| 3 | *
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| 4 | * @package install
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| 5 | * @version $Id$
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| 6 | * @copyright (c) 2006 phpBB Group
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| 7 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License
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| 8 | *
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| 9 | */
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| 10 |
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| 11 | /**
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| 12 | * @ignore
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| 13 | */
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| 14 | if (!defined('IN_PHPBB'))
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| 15 | {
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| 16 | exit;
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| 17 | }
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| 18 |
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| 19 | /**
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| 20 | * Determine if we are able to load a specified PHP module and do so if possible
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| 21 | */
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| 22 | function can_load_dll($dll)
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| 23 | {
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| 24 | // SQLite2 is a tricky thing, from 5.0.0 it requires PDO; if PDO is not loaded we must state that SQLite is unavailable
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| 25 | // as the installer doesn't understand that the extension has a prerequisite.
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| 26 | //
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| 27 | // On top of this sometimes the SQLite extension is compiled for a different version of PDO
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| 28 | // by some Linux distributions which causes phpBB to bomb out with a blank page.
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| 29 | //
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| 30 | // Net result we'll disable automatic inclusion of SQLite support
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| 31 | //
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| 32 | // See: r9618 and #56105
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| 33 | if ($dll == 'sqlite')
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| 34 | {
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| 35 | return false;
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| 36 | }
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| 37 | return ((@ini_get('enable_dl') || strtolower(@ini_get('enable_dl')) == 'on') && (!@ini_get('safe_mode') || strtolower(@ini_get('safe_mode')) == 'off') && function_exists('dl') && @dl($dll . '.' . PHP_SHLIB_SUFFIX)) ? true : false;
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| 38 | }
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| 39 |
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| 40 | /**
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| 41 | * Returns an array of available DBMS with some data, if a DBMS is specified it will only
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| 42 | * return data for that DBMS and will load its extension if necessary.
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| 43 | */
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| 44 | function get_available_dbms($dbms = false, $return_unavailable = false, $only_20x_options = false)
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| 45 | {
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| 46 | global $lang;
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| 47 | $available_dbms = array(
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| 48 | 'firebird' => array(
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| 49 | 'LABEL' => 'FireBird',
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| 50 | 'SCHEMA' => 'firebird',
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| 51 | 'MODULE' => 'interbase',
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| 52 | 'DELIM' => ';;',
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| 53 | 'COMMENTS' => 'remove_remarks',
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| 54 | 'DRIVER' => 'firebird',
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| 55 | 'AVAILABLE' => true,
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| 56 | '2.0.x' => false,
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| 57 | ),
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| 58 | 'mysqli' => array(
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| 59 | 'LABEL' => 'MySQL with MySQLi Extension',
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| 60 | 'SCHEMA' => 'mysql_41',
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| 61 | 'MODULE' => 'mysqli',
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| 62 | 'DELIM' => ';',
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| 63 | 'COMMENTS' => 'remove_remarks',
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| 64 | 'DRIVER' => 'mysqli',
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| 65 | 'AVAILABLE' => true,
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| 66 | '2.0.x' => true,
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| 67 | ),
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| 68 | 'mysql' => array(
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| 69 | 'LABEL' => 'MySQL',
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| 70 | 'SCHEMA' => 'mysql',
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| 71 | 'MODULE' => 'mysql',
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| 72 | 'DELIM' => ';',
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| 73 | 'COMMENTS' => 'remove_remarks',
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| 74 | 'DRIVER' => 'mysql',
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| 75 | 'AVAILABLE' => true,
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| 76 | '2.0.x' => true,
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| 77 | ),
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| 78 | 'mssql' => array(
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| 79 | 'LABEL' => 'MS SQL Server 2000+',
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| 80 | 'SCHEMA' => 'mssql',
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| 81 | 'MODULE' => 'mssql',
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| 82 | 'DELIM' => 'GO',
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| 83 | 'COMMENTS' => 'remove_comments',
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| 84 | 'DRIVER' => 'mssql',
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| 85 | 'AVAILABLE' => true,
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| 86 | '2.0.x' => true,
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| 87 | ),
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| 88 | 'mssql_odbc'=> array(
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| 89 | 'LABEL' => 'MS SQL Server [ ODBC ]',
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| 90 | 'SCHEMA' => 'mssql',
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| 91 | 'MODULE' => 'odbc',
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| 92 | 'DELIM' => 'GO',
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| 93 | 'COMMENTS' => 'remove_comments',
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| 94 | 'DRIVER' => 'mssql_odbc',
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| 95 | 'AVAILABLE' => true,
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| 96 | '2.0.x' => true,
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| 97 | ),
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| 98 | 'oracle' => array(
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| 99 | 'LABEL' => 'Oracle',
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| 100 | 'SCHEMA' => 'oracle',
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| 101 | 'MODULE' => 'oci8',
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| 102 | 'DELIM' => '/',
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| 103 | 'COMMENTS' => 'remove_comments',
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| 104 | 'DRIVER' => 'oracle',
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| 105 | 'AVAILABLE' => true,
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| 106 | '2.0.x' => false,
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| 107 | ),
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| 108 | 'postgres' => array(
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| 109 | 'LABEL' => 'PostgreSQL 7.x/8.x',
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| 110 | 'SCHEMA' => 'postgres',
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| 111 | 'MODULE' => 'pgsql',
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| 112 | 'DELIM' => ';',
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| 113 | 'COMMENTS' => 'remove_comments',
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| 114 | 'DRIVER' => 'postgres',
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| 115 | 'AVAILABLE' => true,
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| 116 | '2.0.x' => true,
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| 117 | ),
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| 118 | 'sqlite' => array(
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| 119 | 'LABEL' => 'SQLite',
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| 120 | 'SCHEMA' => 'sqlite',
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| 121 | 'MODULE' => 'sqlite',
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| 122 | 'DELIM' => ';',
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| 123 | 'COMMENTS' => 'remove_remarks',
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| 124 | 'DRIVER' => 'sqlite',
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| 125 | 'AVAILABLE' => true,
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| 126 | '2.0.x' => false,
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| 127 | ),
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| 128 | );
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| 129 |
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| 130 | if ($dbms)
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| 131 | {
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| 132 | if (isset($available_dbms[$dbms]))
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| 133 | {
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| 134 | $available_dbms = array($dbms => $available_dbms[$dbms]);
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| 135 | }
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| 136 | else
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| 137 | {
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| 138 | return array();
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| 139 | }
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| 140 | }
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| 141 |
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| 142 | // now perform some checks whether they are really available
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| 143 | foreach ($available_dbms as $db_name => $db_ary)
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| 144 | {
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| 145 | if ($only_20x_options && !$db_ary['2.0.x'])
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| 146 | {
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| 147 | if ($return_unavailable)
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| 148 | {
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| 149 | $available_dbms[$db_name]['AVAILABLE'] = false;
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| 150 | }
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| 151 | else
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| 152 | {
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| 153 | unset($available_dbms[$db_name]);
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| 154 | }
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| 155 | continue;
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| 156 | }
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| 157 |
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| 158 | $dll = $db_ary['MODULE'];
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| 159 |
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| 160 | if (!@extension_loaded($dll))
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| 161 | {
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| 162 | if (!can_load_dll($dll))
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| 163 | {
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| 164 | if ($return_unavailable)
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| 165 | {
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| 166 | $available_dbms[$db_name]['AVAILABLE'] = false;
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| 167 | }
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| 168 | else
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| 169 | {
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| 170 | unset($available_dbms[$db_name]);
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| 171 | }
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| 172 | continue;
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| 173 | }
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| 174 | }
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| 175 | $any_db_support = true;
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| 176 | }
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| 177 |
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| 178 | if ($return_unavailable)
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| 179 | {
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| 180 | $available_dbms['ANY_DB_SUPPORT'] = $any_db_support;
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| 181 | }
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| 182 | return $available_dbms;
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| 183 | }
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| 184 |
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| 185 | /**
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| 186 | * Generate the drop down of available database options
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| 187 | */
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| 188 | function dbms_select($default = '', $only_20x_options = false)
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| 189 | {
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| 190 | global $lang;
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| 191 |
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| 192 | $available_dbms = get_available_dbms(false, false, $only_20x_options);
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| 193 | $dbms_options = '';
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| 194 | foreach ($available_dbms as $dbms_name => $details)
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| 195 | {
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| 196 | $selected = ($dbms_name == $default) ? ' selected="selected"' : '';
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| 197 | $dbms_options .= '<option value="' . $dbms_name . '"' . $selected .'>' . $lang['DLL_' . strtoupper($dbms_name)] . '</option>';
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| 198 | }
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| 199 | return $dbms_options;
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| 200 | }
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| 201 |
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| 202 | /**
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| 203 | * Get tables of a database
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| 204 | */
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| 205 | function get_tables($db)
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| 206 | {
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| 207 | switch ($db->sql_layer)
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| 208 | {
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| 209 | case 'mysql':
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| 210 | case 'mysql4':
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| 211 | case 'mysqli':
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| 212 | $sql = 'SHOW TABLES';
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| 213 | break;
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| 214 |
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| 215 | case 'sqlite':
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| 216 | $sql = 'SELECT name
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| 217 | FROM sqlite_master
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| 218 | WHERE type = "table"';
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| 219 | break;
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| 220 |
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| 221 | case 'mssql':
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| 222 | case 'mssql_odbc':
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| 223 | $sql = "SELECT name
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| 224 | FROM sysobjects
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| 225 | WHERE type='U'";
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| 226 | break;
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| 227 |
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| 228 | case 'postgres':
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| 229 | $sql = 'SELECT relname
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| 230 | FROM pg_stat_user_tables';
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| 231 | break;
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| 232 |
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| 233 | case 'firebird':
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| 234 | $sql = 'SELECT rdb$relation_name
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| 235 | FROM rdb$relations
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| 236 | WHERE rdb$view_source is null
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| 237 | AND rdb$system_flag = 0';
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| 238 | break;
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| 239 |
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| 240 | case 'oracle':
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| 241 | $sql = 'SELECT table_name
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| 242 | FROM USER_TABLES';
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| 243 | break;
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| 244 | }
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| 245 |
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| 246 | $result = $db->sql_query($sql);
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| 247 |
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| 248 | $tables = array();
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| 249 |
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| 250 | while ($row = $db->sql_fetchrow($result))
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| 251 | {
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| 252 | $tables[] = current($row);
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| 253 | }
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| 254 |
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| 255 | $db->sql_freeresult($result);
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| 256 |
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| 257 | return $tables;
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| 258 | }
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| 259 |
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| 260 | /**
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| 261 | * Used to test whether we are able to connect to the database the user has specified
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| 262 | * and identify any problems (eg there are already tables with the names we want to use
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| 263 | * @param array $dbms should be of the format of an element of the array returned by {@link get_available_dbms get_available_dbms()}
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| 264 | * necessary extensions should be loaded already
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| 265 | */
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| 266 | function connect_check_db($error_connect, &$error, $dbms_details, $table_prefix, $dbhost, $dbuser, $dbpasswd, $dbname, $dbport, $prefix_may_exist = false, $load_dbal = true, $unicode_check = true)
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| 267 | {
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| 268 | global $phpbb_root_path, $phpEx, $config, $lang;
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| 269 |
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| 270 | $dbms = $dbms_details['DRIVER'];
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| 271 |
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| 272 | if ($load_dbal)
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| 273 | {
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| 274 | // Include the DB layer
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| 275 | include($phpbb_root_path . 'includes/db/' . $dbms . '.' . $phpEx);
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| 276 | }
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| 277 |
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| 278 | // Instantiate it and set return on error true
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| 279 | $sql_db = 'dbal_' . $dbms;
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| 280 | $db = new $sql_db();
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| 281 | $db->sql_return_on_error(true);
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| 282 |
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| 283 | // Check that we actually have a database name before going any further.....
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| 284 | if ($dbms_details['DRIVER'] != 'sqlite' && $dbms_details['DRIVER'] != 'oracle' && $dbname === '')
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| 285 | {
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| 286 | $error[] = $lang['INST_ERR_DB_NO_NAME'];
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| 287 | return false;
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| 288 | }
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| 289 |
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| 290 | // Make sure we don't have a daft user who thinks having the SQLite database in the forum directory is a good idea
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| 291 | if ($dbms_details['DRIVER'] == 'sqlite' && stripos(phpbb_realpath($dbhost), phpbb_realpath('../')) === 0)
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| 292 | {
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| 293 | $error[] = $lang['INST_ERR_DB_FORUM_PATH'];
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| 294 | return false;
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| 295 | }
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| 296 |
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| 297 | // Check the prefix length to ensure that index names are not too long and does not contain invalid characters
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| 298 | switch ($dbms_details['DRIVER'])
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| 299 | {
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| 300 | case 'mysql':
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| 301 | case 'mysqli':
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| 302 | if (strspn($table_prefix, '-./\\') !== 0)
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| 303 | {
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| 304 | $error[] = $lang['INST_ERR_PREFIX_INVALID'];
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| 305 | return false;
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| 306 | }
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| 307 |
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| 308 | // no break;
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| 309 |
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| 310 | case 'postgres':
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| 311 | $prefix_length = 36;
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| 312 | break;
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| 313 |
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| 314 | case 'mssql':
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| 315 | case 'mssql_odbc':
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| 316 | $prefix_length = 90;
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| 317 | break;
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| 318 |
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| 319 | case 'sqlite':
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| 320 | $prefix_length = 200;
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| 321 | break;
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| 322 |
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| 323 | case 'firebird':
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| 324 | case 'oracle':
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| 325 | $prefix_length = 6;
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| 326 | break;
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| 327 | }
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| 328 |
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| 329 | if (strlen($table_prefix) > $prefix_length)
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| 330 | {
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| 331 | $error[] = sprintf($lang['INST_ERR_PREFIX_TOO_LONG'], $prefix_length);
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| 332 | return false;
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| 333 | }
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| 334 |
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| 335 | // Try and connect ...
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| 336 | if (is_array($db->sql_connect($dbhost, $dbuser, $dbpasswd, $dbname, $dbport, false, true)))
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| 337 | {
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| 338 | $db_error = $db->sql_error();
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| 339 | $error[] = $lang['INST_ERR_DB_CONNECT'] . '<br />' . (($db_error['message']) ? $db_error['message'] : $lang['INST_ERR_DB_NO_ERROR']);
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| 340 | }
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| 341 | else
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| 342 | {
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| 343 | // Likely matches for an existing phpBB installation
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| 344 | if (!$prefix_may_exist)
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| 345 | {
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| 346 | $temp_prefix = strtolower($table_prefix);
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| 347 | $table_ary = array($temp_prefix . 'attachments', $temp_prefix . 'config', $temp_prefix . 'sessions', $temp_prefix . 'topics', $temp_prefix . 'users');
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| 348 |
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| 349 | $tables = get_tables($db);
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| 350 | $tables = array_map('strtolower', $tables);
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| 351 | $table_intersect = array_intersect($tables, $table_ary);
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| 352 |
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| 353 | if (sizeof($table_intersect))
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| 354 | {
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| 355 | $error[] = $lang['INST_ERR_PREFIX'];
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| 356 | }
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| 357 | }
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| 358 |
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| 359 | // Make sure that the user has selected a sensible DBAL for the DBMS actually installed
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| 360 | switch ($dbms_details['DRIVER'])
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| 361 | {
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| 362 | case 'mysqli':
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| 363 | if (version_compare(mysqli_get_server_info($db->db_connect_id), '4.1.3', '<'))
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| 364 | {
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| 365 | $error[] = $lang['INST_ERR_DB_NO_MYSQLI'];
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| 366 | }
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| 367 | break;
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| 368 |
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| 369 | case 'sqlite':
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| 370 | if (version_compare(sqlite_libversion(), '2.8.2', '<'))
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| 371 | {
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| 372 | $error[] = $lang['INST_ERR_DB_NO_SQLITE'];
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| 373 | }
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| 374 | break;
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| 375 |
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| 376 | case 'firebird':
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| 377 | // check the version of FB, use some hackery if we can't get access to the server info
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| 378 | if ($db->service_handle !== false && function_exists('ibase_server_info'))
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| 379 | {
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| 380 | $val = @ibase_server_info($db->service_handle, IBASE_SVC_SERVER_VERSION);
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| 381 | preg_match('#V([\d.]+)#', $val, $match);
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| 382 | if ($match[1] < 2)
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| 383 | {
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| 384 | $error[] = $lang['INST_ERR_DB_NO_FIREBIRD'];
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| 385 | }
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| 386 | $db_info = @ibase_db_info($db->service_handle, $dbname, IBASE_STS_HDR_PAGES);
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| 387 |
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| 388 | preg_match('/^\\s*Page size\\s*(\\d+)/m', $db_info, $regs);
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| 389 | $page_size = intval($regs[1]);
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| 390 | if ($page_size < 8192)
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| 391 | {
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| 392 | $error[] = $lang['INST_ERR_DB_NO_FIREBIRD_PS'];
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| 393 | }
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| 394 | }
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| 395 | else
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| 396 | {
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| 397 | $sql = "SELECT *
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| 398 | FROM RDB$FUNCTIONS
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| 399 | WHERE RDB$SYSTEM_FLAG IS NULL
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| 400 | AND RDB$FUNCTION_NAME = 'CHAR_LENGTH'";
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| 401 | $result = $db->sql_query($sql);
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| 402 | $row = $db->sql_fetchrow($result);
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| 403 | $db->sql_freeresult($result);
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| 404 |
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| 405 | // if its a UDF, its too old
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| 406 | if ($row)
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| 407 | {
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| 408 | $error[] = $lang['INST_ERR_DB_NO_FIREBIRD'];
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| 409 | }
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| 410 | else
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| 411 | {
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| 412 | $sql = 'SELECT 1 FROM RDB$DATABASE
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| 413 | WHERE BIN_AND(10, 1) = 0';
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| 414 | $result = $db->sql_query($sql);
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| 415 | if (!$result) // This can only fail if BIN_AND is not defined
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| 416 | {
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| 417 | $error[] = $lang['INST_ERR_DB_NO_FIREBIRD'];
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| 418 | }
|
|---|
| 419 | $db->sql_freeresult($result);
|
|---|
| 420 | }
|
|---|
| 421 |
|
|---|
| 422 | // Setup the stuff for our random table
|
|---|
| 423 | $char_array = array_merge(range('A', 'Z'), range('0', '9'));
|
|---|
| 424 | $char_len = mt_rand(7, 9);
|
|---|
| 425 | $char_array_len = sizeof($char_array) - 1;
|
|---|
| 426 |
|
|---|
| 427 | $final = '';
|
|---|
| 428 |
|
|---|
| 429 | for ($i = 0; $i < $char_len; $i++)
|
|---|
| 430 | {
|
|---|
| 431 | $final .= $char_array[mt_rand(0, $char_array_len)];
|
|---|
| 432 | }
|
|---|
| 433 |
|
|---|
| 434 | // Create some random table
|
|---|
| 435 | $sql = 'CREATE TABLE ' . $final . " (
|
|---|
| 436 | FIELD1 VARCHAR(255) CHARACTER SET UTF8 DEFAULT '' NOT NULL COLLATE UNICODE,
|
|---|
| 437 | FIELD2 INTEGER DEFAULT 0 NOT NULL);";
|
|---|
| 438 | $db->sql_query($sql);
|
|---|
| 439 |
|
|---|
| 440 | // Create an index that should fail if the page size is less than 8192
|
|---|
| 441 | $sql = 'CREATE INDEX ' . $final . ' ON ' . $final . '(FIELD1, FIELD2);';
|
|---|
| 442 | $db->sql_query($sql);
|
|---|
| 443 |
|
|---|
| 444 | if (ibase_errmsg() !== false)
|
|---|
| 445 | {
|
|---|
| 446 | $error[] = $lang['INST_ERR_DB_NO_FIREBIRD_PS'];
|
|---|
| 447 | }
|
|---|
| 448 | else
|
|---|
| 449 | {
|
|---|
| 450 | // Kill the old table
|
|---|
| 451 | $db->sql_query('DROP TABLE ' . $final . ';');
|
|---|
| 452 | }
|
|---|
| 453 | unset($final);
|
|---|
| 454 | }
|
|---|
| 455 | break;
|
|---|
| 456 |
|
|---|
| 457 | case 'oracle':
|
|---|
| 458 | if ($unicode_check)
|
|---|
| 459 | {
|
|---|
| 460 | $sql = "SELECT *
|
|---|
| 461 | FROM NLS_DATABASE_PARAMETERS
|
|---|
| 462 | WHERE PARAMETER = 'NLS_RDBMS_VERSION'
|
|---|
| 463 | OR PARAMETER = 'NLS_CHARACTERSET'";
|
|---|
| 464 | $result = $db->sql_query($sql);
|
|---|
| 465 |
|
|---|
| 466 | while ($row = $db->sql_fetchrow($result))
|
|---|
| 467 | {
|
|---|
| 468 | $stats[$row['parameter']] = $row['value'];
|
|---|
| 469 | }
|
|---|
| 470 | $db->sql_freeresult($result);
|
|---|
| 471 |
|
|---|
| 472 | if (version_compare($stats['NLS_RDBMS_VERSION'], '9.2', '<') && $stats['NLS_CHARACTERSET'] !== 'UTF8')
|
|---|
| 473 | {
|
|---|
| 474 | $error[] = $lang['INST_ERR_DB_NO_ORACLE'];
|
|---|
| 475 | }
|
|---|
| 476 | }
|
|---|
| 477 | break;
|
|---|
| 478 |
|
|---|
| 479 | case 'postgres':
|
|---|
| 480 | if ($unicode_check)
|
|---|
| 481 | {
|
|---|
| 482 | $sql = "SHOW server_encoding;";
|
|---|
| 483 | $result = $db->sql_query($sql);
|
|---|
| 484 | $row = $db->sql_fetchrow($result);
|
|---|
| 485 | $db->sql_freeresult($result);
|
|---|
| 486 |
|
|---|
| 487 | if ($row['server_encoding'] !== 'UNICODE' && $row['server_encoding'] !== 'UTF8')
|
|---|
| 488 | {
|
|---|
| 489 | $error[] = $lang['INST_ERR_DB_NO_POSTGRES'];
|
|---|
| 490 | }
|
|---|
| 491 | }
|
|---|
| 492 | break;
|
|---|
| 493 | }
|
|---|
| 494 |
|
|---|
| 495 | }
|
|---|
| 496 |
|
|---|
| 497 | if ($error_connect && (!isset($error) || !sizeof($error)))
|
|---|
| 498 | {
|
|---|
| 499 | return true;
|
|---|
| 500 | }
|
|---|
| 501 | return false;
|
|---|
| 502 | }
|
|---|
| 503 |
|
|---|
| 504 | /**
|
|---|
| 505 | * remove_remarks will strip the sql comment lines out of an uploaded sql file
|
|---|
| 506 | */
|
|---|
| 507 | function remove_remarks(&$sql)
|
|---|
| 508 | {
|
|---|
| 509 | $sql = preg_replace('/\n{2,}/', "\n", preg_replace('/^#.*$/m', "\n", $sql));
|
|---|
| 510 | }
|
|---|
| 511 |
|
|---|
| 512 | /**
|
|---|
| 513 | * split_sql_file will split an uploaded sql file into single sql statements.
|
|---|
| 514 | * Note: expects trim() to have already been run on $sql.
|
|---|
| 515 | */
|
|---|
| 516 | function split_sql_file($sql, $delimiter)
|
|---|
| 517 | {
|
|---|
| 518 | $sql = str_replace("\r" , '', $sql);
|
|---|
| 519 | $data = preg_split('/' . preg_quote($delimiter, '/') . '$/m', $sql);
|
|---|
| 520 |
|
|---|
| 521 | $data = array_map('trim', $data);
|
|---|
| 522 |
|
|---|
| 523 | // The empty case
|
|---|
| 524 | $end_data = end($data);
|
|---|
| 525 |
|
|---|
| 526 | if (empty($end_data))
|
|---|
| 527 | {
|
|---|
| 528 | unset($data[key($data)]);
|
|---|
| 529 | }
|
|---|
| 530 |
|
|---|
| 531 | return $data;
|
|---|
| 532 | }
|
|---|
| 533 |
|
|---|
| 534 | /**
|
|---|
| 535 | * For replacing {L_*} strings with preg_replace_callback
|
|---|
| 536 | */
|
|---|
| 537 | function adjust_language_keys_callback($matches)
|
|---|
| 538 | {
|
|---|
| 539 | if (!empty($matches[1]))
|
|---|
| 540 | {
|
|---|
| 541 | global $lang, $db;
|
|---|
| 542 |
|
|---|
| 543 | return (!empty($lang[$matches[1]])) ? $db->sql_escape($lang[$matches[1]]) : $db->sql_escape($matches[1]);
|
|---|
| 544 | }
|
|---|
| 545 | }
|
|---|
| 546 |
|
|---|
| 547 | ?>
|
|---|
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