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<?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.
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
/**
* Returns an array of available DBMS with some data, if a DBMS is specified it will only
* return data for that DBMS and will load its extension if necessary.
*/
function get_available_dbms($dbms = false, $return_unavailable = false, $only_20x_options = false)
{
global $lang;
$available_dbms = array(
// Note: php 5.5 alpha 2 deprecated mysql.
// Keep mysqli before mysql in this list.
'mysqli' => array(
'LABEL' => 'MySQL with MySQLi Extension',
'SCHEMA' => 'mysql_41',
'MODULE' => 'mysqli',
'DELIM' => ';',
'DRIVER' => 'phpbb\db\driver\mysqli',
'AVAILABLE' => true,
'2.0.x' => true,
),
'mysql' => array(
'LABEL' => 'MySQL',
'SCHEMA' => 'mysql',
'MODULE' => 'mysql',
'DELIM' => ';',
'DRIVER' => 'phpbb\db\driver\mysql',
'AVAILABLE' => true,
'2.0.x' => true,
),
'mssql' => array(
'LABEL' => 'MS SQL Server 2000+',
'SCHEMA' => 'mssql',
'MODULE' => 'mssql',
'DELIM' => 'GO',
'DRIVER' => 'phpbb\db\driver\mssql',
'AVAILABLE' => true,
'2.0.x' => true,
),
'mssql_odbc'=> array(
'LABEL' => 'MS SQL Server [ ODBC ]',
'SCHEMA' => 'mssql',
'MODULE' => 'odbc',
'DELIM' => 'GO',
'DRIVER' => 'phpbb\db\driver\mssql_odbc',
'AVAILABLE' => true,
'2.0.x' => true,
),
'mssqlnative' => array(
'LABEL' => 'MS SQL Server 2005+ [ Native ]',
'SCHEMA' => 'mssql',
'MODULE' => 'sqlsrv',
'DELIM' => 'GO',
'DRIVER' => 'phpbb\db\driver\mssqlnative',
'AVAILABLE' => true,
'2.0.x' => false,
),
'oracle' => array(
'LABEL' => 'Oracle',
'SCHEMA' => 'oracle',
'MODULE' => 'oci8',
'DELIM' => '/',
'DRIVER' => 'phpbb\db\driver\oracle',
'AVAILABLE' => true,
'2.0.x' => false,
),
'postgres' => array(
'LABEL' => 'PostgreSQL 8.3+',
'SCHEMA' => 'postgres',
'MODULE' => 'pgsql',
'DELIM' => ';',
'DRIVER' => 'phpbb\db\driver\postgres',
'AVAILABLE' => true,
'2.0.x' => true,
),
'sqlite' => array(
'LABEL' => 'SQLite',
'SCHEMA' => 'sqlite',
'MODULE' => 'sqlite',
'DELIM' => ';',
'DRIVER' => 'phpbb\db\driver\sqlite',
'AVAILABLE' => true,
'2.0.x' => false,
),
'sqlite3' => array(
'LABEL' => 'SQLite3',
'SCHEMA' => 'sqlite',
'MODULE' => 'sqlite3',
'DELIM' => ';',
'DRIVER' => 'phpbb\db\driver\sqlite3',
'AVAILABLE' => true,
'2.0.x' => false,
),
);
if ($dbms)
{
if (isset($available_dbms[$dbms]))
{
$available_dbms = array($dbms => $available_dbms[$dbms]);
}
else
{
return array();
}
}
// now perform some checks whether they are really available
foreach ($available_dbms as $db_name => $db_ary)
{
if ($only_20x_options && !$db_ary['2.0.x'])
{
if ($return_unavailable)
{
$available_dbms[$db_name]['AVAILABLE'] = false;
}
else
{
unset($available_dbms[$db_name]);
}
continue;
}
$dll = $db_ary['MODULE'];
if (!@extension_loaded($dll))
{
if ($return_unavailable)
{
$available_dbms[$db_name]['AVAILABLE'] = false;
}
else
{
unset($available_dbms[$db_name]);
}
continue;
}
$any_db_support = true;
}
if ($return_unavailable)
{
$available_dbms['ANY_DB_SUPPORT'] = $any_db_support;
}
return $available_dbms;
}
/**
* Generate the drop down of available database options
*/
function dbms_select($default = '', $only_20x_options = false)
{
global $lang;
$available_dbms = get_available_dbms(false, false, $only_20x_options);
$dbms_options = '';
foreach ($available_dbms as $dbms_name => $details)
{
$selected = ($dbms_name == $default) ? ' selected="selected"' : '';
$dbms_options .= '<option value="' . $dbms_name . '"' . $selected .'>' . $lang['DLL_' . strtoupper($dbms_name)] . '</option>';
}
return $dbms_options;
}
/**
* Used to test whether we are able to connect to the database the user has specified
* and identify any problems (eg there are already tables with the names we want to use
* @param array $dbms should be of the format of an element of the array returned by {@link get_available_dbms get_available_dbms()}
* necessary extensions should be loaded already
*/
function connect_check_db($error_connect, &$error, $dbms_details, $table_prefix, $dbhost, $dbuser, $dbpasswd, $dbname, $dbport, $prefix_may_exist = false, $load_dbal = true, $unicode_check = true)
{
global $phpbb_root_path, $phpEx, $config, $lang;
$dbms = $dbms_details['DRIVER'];
// Instantiate it and set return on error true
$db = new $dbms();
$db->sql_return_on_error(true);
// Check that we actually have a database name before going any further.....
if ($dbms_details['DRIVER'] != 'phpbb\db\driver\sqlite' && $dbms_details['DRIVER'] != 'phpbb\db\driver\sqlite3' && $dbms_details['DRIVER'] != 'phpbb\db\driver\oracle' && $dbname === '')
{
$error[] = $lang['INST_ERR_DB_NO_NAME'];
return false;
}
// Make sure we don't have a daft user who thinks having the SQLite database in the forum directory is a good idea
if (($dbms_details['DRIVER'] == 'phpbb\db\driver\sqlite' || $dbms_details['DRIVER'] == 'phpbb\db\driver\sqlite3') && stripos(phpbb_realpath($dbhost), phpbb_realpath('../')) === 0)
{
$error[] = $lang['INST_ERR_DB_FORUM_PATH'];
return false;
}
// Check the prefix length to ensure that index names are not too long and does not contain invalid characters
switch ($dbms_details['DRIVER'])
{
case 'phpbb\db\driver\mysql':
case 'phpbb\db\driver\mysqli':
if (strspn($table_prefix, '-./\\') !== 0)
{
$error[] = $lang['INST_ERR_PREFIX_INVALID'];
return false;
}
// no break;
case 'phpbb\db\driver\postgres':
$prefix_length = 36;
break;
case 'phpbb\db\driver\mssql':
case 'phpbb\db\driver\mssql_odbc':
case 'phpbb\db\driver\mssqlnative':
$prefix_length = 90;
break;
case 'phpbb\db\driver\sqlite':
case 'phpbb\db\driver\sqlite3':
$prefix_length = 200;
break;
case 'phpbb\db\driver\oracle':
$prefix_length = 6;
break;
}
if (strlen($table_prefix) > $prefix_length)
{
$error[] = sprintf($lang['INST_ERR_PREFIX_TOO_LONG'], $prefix_length);
return false;
}
// Try and connect ...
if (is_array($db->sql_connect($dbhost, $dbuser, $dbpasswd, $dbname, $dbport, false, true)))
{
$db_error = $db->sql_error();
$error[] = $lang['INST_ERR_DB_CONNECT'] . '<br />' . (($db_error['message']) ? utf8_convert_message($db_error['message']) : $lang['INST_ERR_DB_NO_ERROR']);
}
else
{
// Likely matches for an existing phpBB installation
if (!$prefix_may_exist)
{
$temp_prefix = strtolower($table_prefix);
$table_ary = array($temp_prefix . 'attachments', $temp_prefix . 'config', $temp_prefix . 'sessions', $temp_prefix . 'topics', $temp_prefix . 'users');
$db_tools_factory = new \phpbb\db\tools\factory();
$db_tools = $db_tools_factory->get($db);
$tables = $db_tools->sql_list_tables();
$tables = array_map('strtolower', $tables);
$table_intersect = array_intersect($tables, $table_ary);
if (sizeof($table_intersect))
{
$error[] = $lang['INST_ERR_PREFIX'];
}
}
// Make sure that the user has selected a sensible DBAL for the DBMS actually installed
switch ($dbms_details['DRIVER'])
{
case 'phpbb\db\driver\mysqli':
if (version_compare(mysqli_get_server_info($db->get_db_connect_id()), '4.1.3', '<'))
{
$error[] = $lang['INST_ERR_DB_NO_MYSQLI'];
}
break;
case 'phpbb\db\driver\sqlite':
if (version_compare(sqlite_libversion(), '2.8.2', '<'))
{
$error[] = $lang['INST_ERR_DB_NO_SQLITE'];
}
break;
case 'phpbb\db\driver\sqlite3':
$version = \SQLite3::version();
if (version_compare($version['versionString'], '3.6.15', '<'))
{
$error[] = $lang['INST_ERR_DB_NO_SQLITE3'];
}
break;
case 'phpbb\db\driver\oracle':
if ($unicode_check)
{
$sql = "SELECT *
FROM NLS_DATABASE_PARAMETERS
WHERE PARAMETER = 'NLS_RDBMS_VERSION'
OR PARAMETER = 'NLS_CHARACTERSET'";
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$stats[$row['parameter']] = $row['value'];
}
$db->sql_freeresult($result);
if (version_compare($stats['NLS_RDBMS_VERSION'], '9.2', '<') && $stats['NLS_CHARACTERSET'] !== 'UTF8')
{
$error[] = $lang['INST_ERR_DB_NO_ORACLE'];
}
}
break;
case 'phpbb\db\driver\postgres':
if ($unicode_check)
{
$sql = "SHOW server_encoding;";
$result = $db->sql_query($sql);
$row = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
if ($row['server_encoding'] !== 'UNICODE' && $row['server_encoding'] !== 'UTF8')
{
$error[] = $lang['INST_ERR_DB_NO_POSTGRES'];
}
}
break;
}
}
if ($error_connect && (!isset($error) || !sizeof($error)))
{
return true;
}
return false;
}
/**
* Removes "/* style" as well as "# style" comments from $input.
*
* @param string $input Input string
*
* @return string Input string with comments removed
*/
function phpbb_remove_comments($input)
{
// Remove /* */ comments (http://ostermiller.org/findcomment.html)
$input = preg_replace('#/\*(.|[\r\n])*?\*/#', "\n", $input);
// Remove # style comments
$input = preg_replace('/\n{2,}/', "\n", preg_replace('/^#.*$/m', "\n", $input));
return $input;
}
/**
* split_sql_file will split an uploaded sql file into single sql statements.
* Note: expects trim() to have already been run on $sql.
*/
function split_sql_file($sql, $delimiter)
{
$sql = str_replace("\r" , '', $sql);
$data = preg_split('/' . preg_quote($delimiter, '/') . '$/m', $sql);
$data = array_map('trim', $data);
// The empty case
$end_data = end($data);
if (empty($end_data))
{
unset($data[key($data)]);
}
return $data;
}
/**
* For replacing {L_*} strings with preg_replace_callback
*/
function adjust_language_keys_callback($matches)
{
if (!empty($matches[1]))
{
global $lang, $db;
return (!empty($lang[$matches[1]])) ? $db->sql_escape($lang[$matches[1]]) : $db->sql_escape($matches[1]);
}
}
/**
* Creates the output to be stored in a phpBB config.php file
*
* @param array $data Array containing the database connection information
* @param string $dbms The name of the DBAL class to use
* @param bool $debug If the debug constants should be enabled by default or not
* @param bool $debug_container If the container should be compiled on
* every page load or not
* @param bool $debug_test If the DEBUG_TEST constant should be added
* NOTE: Only for use within the testing framework
*
* @return string The output to write to the file
*/
function phpbb_create_config_file_data($data, $dbms, $debug = false, $debug_container = false, $debug_test = false)
{
$config_data = "<?php\n";
$config_data .= "// phpBB 3.1.x auto-generated configuration file\n// Do not change anything in this file!\n";
$config_data_array = array(
'dbms' => $dbms,
'dbhost' => $data['dbhost'],
'dbport' => $data['dbport'],
'dbname' => $data['dbname'],
'dbuser' => $data['dbuser'],
'dbpasswd' => htmlspecialchars_decode($data['dbpasswd']),
'table_prefix' => $data['table_prefix'],
'phpbb_adm_relative_path' => 'adm/',
'acm_type' => 'phpbb\cache\driver\file',
);
foreach ($config_data_array as $key => $value)
{
$config_data .= "\${$key} = '" . str_replace("'", "\\'", str_replace('\\', '\\\\', $value)) . "';\n";
}
$config_data .= "\n@define('PHPBB_INSTALLED', true);\n";
$config_data .= "// @define('PHPBB_DISPLAY_LOAD_TIME', true);\n";
if ($debug_test)
{
$config_data .= "@define('PHPBB_ENVIRONMENT', 'test');\n";
}
else if ($debug)
{
$config_data .= "@define('PHPBB_ENVIRONMENT', 'development');\n";
}
else
{
$config_data .= "@define('PHPBB_ENVIRONMENT', 'production');\n";
}
if ($debug_container)
{
$config_data .= "@define('DEBUG_CONTAINER', true);\n";
}
else
{
$config_data .= "// @define('DEBUG_CONTAINER', true);\n";
}
if ($debug_test)
{
$config_data .= "@define('DEBUG_TEST', true);\n";
$config_data .= "@define('DEBUG', true);\n"; // Mandatory for the functional tests, will be removed by PHPBB3-12623
}
return $config_data;
}
/**
* Check whether a file should be ignored on update
*
* We ignore new files in some circumstances:
* 1. The file is a language file, but the language is not installed
* 2. The file is a style file, but the style is not installed
* 3. The file is a style language file, but the language is not installed
*
* @param string $phpbb_root_path phpBB root path
* @param string $file File including path from phpbb root
* @return bool Should we ignore the new file or add it to the board?
*/
function phpbb_ignore_new_file_on_update($phpbb_root_path, $file)
{
$ignore_new_file = false;
// We ignore new files in some circumstances:
// 1. The file is a language file, but the language is not installed
if (!$ignore_new_file && strpos($file, 'language/') === 0)
{
list($language_dir, $language_iso) = explode('/', $file);
$ignore_new_file = !file_exists($phpbb_root_path . $language_dir . '/' . $language_iso);
}
// 2. The file is a style file, but the style is not installed
if (!$ignore_new_file && strpos($file, 'styles/') === 0)
{
list($styles_dir, $style_name) = explode('/', $file);
$ignore_new_file = !file_exists($phpbb_root_path . $styles_dir . '/' . $style_name);
}
// 3. The file is a style language file, but the language is not installed
if (!$ignore_new_file && strpos($file, 'styles/') === 0)
{
$dirs = explode('/', $file);
if (sizeof($dirs) >= 5)
{
list($styles_dir, $style_name, $template_component, $language_iso) = explode('/', $file);
if ($template_component == 'theme' && $language_iso !== 'images')
{
$ignore_new_file = !file_exists($phpbb_root_path . 'language/' . $language_iso);
}
}
}
return $ignore_new_file;
}
/**
* Check whether phpBB is installed.
*
* @param string $phpbb_root_path Path to the phpBB board root.
* @param string $php_ext PHP file extension.
*
* @return bool Returns true if phpBB is installed.
*/
function phpbb_check_installation_exists($phpbb_root_path, $php_ext)
{
// Try opening config file
if (file_exists($phpbb_root_path . 'config.' . $php_ext))
{
include($phpbb_root_path . 'config.' . $php_ext);
}
return defined('PHPBB_INSTALLED');
}
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