connect_error because of bugs before PHP 5.2.9
$error = mysqli_connect_error();
return empty($error);
}
function mysql_query($query) {
return installer::$mysqli->query($query);
}
function mysql_num_rows($result) {
return $result->num_rows;
}
function mysql_error() {
return installer::$mysqli->error;
}
function mysql_select_db($db) {
return installer::$mysqli->select_db($db);
}
}
$host = empty($config["port"]) ? $config['host'] : "{$config['host']}:{$config['port']}";
return @mysql_connect($host, $config["user"], $config["password"]);
}
static function select_db($config) {
if (mysql_select_db($config["dbname"])) {
return true;
}
return mysql_query("CREATE DATABASE `{$config['dbname']}`") &&
mysql_select_db($config["dbname"]);
}
static function verify_mysql_version($config) {
return version_compare(installer::mysql_version($config), "5.0.0", ">=");
}
static function mysql_version($config) {
$result = mysql_query("SHOW VARIABLES WHERE variable_name = \"version\"");
$row = mysql_fetch_object($result);
return $row->Value;
}
static function db_empty($config) {
$query = "SHOW TABLES LIKE '{$config['prefix']}items'";
$results = mysql_query($query);
if ($results === false) {
$msg = mysql_error();
return $msg;
}
return mysql_num_rows($results) === 0;
}
static function create_admin($config) {
$salt = "";
for ($i = 0; $i < 4; $i++) {
$char = mt_rand(48, 109);
$char += ($char > 90) ? 13 : ($char > 57) ? 7 : 0;
$salt .= chr($char);
}
if (!$password = $config["g3_password"]) {
$password = substr(md5(time() . mt_rand()), 0, 6);
}
// Escape backslash in preparation for our UPDATE statement.
$hashed_password = str_replace("\\", "\\\\", $salt . md5($salt . $password));
$sql = self::prepend_prefix($config["prefix"],
"UPDATE {users} SET `password` = '$hashed_password' WHERE `id` = 2");
if (mysql_query($sql)) {
} else {
throw new Exception(mysql_error());
}
return array("admin", $password);
}
static function create_admin_session($config) {
$session_id = md5(time() . mt_rand());
$user_agent = $_SERVER["HTTP_USER_AGENT"];
$user_agent_len = strlen($user_agent);
$now = time();
$data = "session_id|s:32:\"$session_id\"";
$data .= ";user_agent|s:{$user_agent_len}:\"$user_agent\"";
$data .= ";user|i:2";
$data .= ";after_install|i:1";
$data .= ";last_activity|i:$now";
$data = base64_encode($data);
$sql = "INSERT INTO {sessions}(`session_id`, `last_activity`, `data`) " .
"VALUES('$session_id', $now, '$data')";
$sql = self::prepend_prefix($config["prefix"], $sql);
if (mysql_query($sql)) {
setcookie("g3sid", $session_id, 0, "/", "", false, false);
} else {
throw new Exception(mysql_error());
}
}
static function create_private_key($config) {
$key = md5(uniqid(mt_rand(), true)) . md5(uniqid(mt_rand(), true));
$sql = self::prepend_prefix($config["prefix"],
"INSERT INTO {vars} VALUES(NULL, 'gallery', 'private_key', '$key')");
if (mysql_query($sql)) {
} else {
throw new Exception(mysql_error());
}
}
static function prepend_prefix($prefix, $sql) {
return preg_replace("#{([a-zA-Z0-9_]+)}#", "`{$prefix}$1`", $sql);
}
static function check_environment() {
if (!function_exists("mysql_query") && !function_exists("mysqli_set_charset")) {
$errors[] = "Gallery 3 requires a MySQL database, but PHP doesn't have either the MySQL or the MySQLi extension.";
}
if (!preg_match("/^.$/u", "ñ")) {
$errors[] = "PHP is missing Perl-Compatible Regular Expression with UTF-8 support.";
} else if (!preg_match("/^\pL$/u", "ñ")) {
$errors[] = "PHP is missing Perl-Compatible Regular Expression with Unicode support.";
}
if (!(function_exists("spl_autoload_register"))) {
$errors[] = "PHP is missing Standard PHP Library (SPL) support";
}
if (!(class_exists("ReflectionClass"))) {
$errors[] = "PHP is missing reflection support";
}
if (!(function_exists("filter_list"))) {
$errors[] = "PHP is missing the filter extension";
}
if (!(extension_loaded("iconv"))) {
$errors[] = "PHP is missing the iconv extension";
}
if (!(extension_loaded("xml"))) {
$errors[] = "PHP is missing the XML Parser extension";
}
if (!(extension_loaded("simplexml"))) {
$errors[] = "PHP is missing the SimpleXML extension";
}
if (!extension_loaded("mbstring")) {
$errors[] = "PHP is missing the mbstring extension";
} else if (ini_get("mbstring.func_overload") & MB_OVERLOAD_STRING) {
$errors[] = "The mbstring extension is overloading PHP's native string functions. Please disable it.";
}
if (!function_exists("json_encode")) {
$errors[] = "PHP is missing the JavaScript Object Notation (JSON) extension. Please install it.";
}
if (!ini_get("short_open_tag")) {
$errors[] = "Gallery requires short_open_tag to be on. Please enable it in your php.ini.";
}
if (!function_exists("ctype_alpha")) {
$errors[] = "Gallery requires the PHP Ctype extension. Please install it.";
}
if (self::ini_get_bool("safe_mode")) {
$errors[] = "Gallery cannot function when PHP is in Safe Mode. Please disable safe mode.";
}
return @$errors;
}
/**
* Convert any possible boolean ini value to true/false.
* On = on = 1 = true
* Off = off = 0 = false
*/
static function ini_get_bool($varname) {
$value = ini_get($varname);
if (!strcasecmp("on", $value) || $value == 1 || $value === true) {
return true;
}
if (!strcasecmp("off", $value) || $value == 0 || $value === false) {
return false;
}
return false;
}
}