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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Interface to the improved MySQL extension (MySQLi)
*
* @package PhpMyAdmin-DBI-MySQLi
*/
if (! defined('PHPMYADMIN')) {
exit;
}
require_once './libraries/logging.lib.php';
/**
* MySQL client API
*/
if (!defined('PMA_MYSQL_CLIENT_API')) {
$client_api = explode('.', mysqli_get_client_info());
define('PMA_MYSQL_CLIENT_API', (int)sprintf('%d%02d%02d', $client_api[0], $client_api[1], intval($client_api[2])));
unset($client_api);
}
/**
* some PHP versions are reporting extra messages like "No index used in query"
*/
mysqli_report(MYSQLI_REPORT_OFF);
/**
* some older mysql client libs are missing these constants ...
*/
if (! defined('MYSQLI_BINARY_FLAG')) {
define('MYSQLI_BINARY_FLAG', 128);
}
/**
* @see http://bugs.php.net/36007
*/
if (! defined('MYSQLI_TYPE_NEWDECIMAL')) {
define('MYSQLI_TYPE_NEWDECIMAL', 246);
}
if (! defined('MYSQLI_TYPE_BIT')) {
define('MYSQLI_TYPE_BIT', 16);
}
// for Drizzle
if (! defined('MYSQLI_TYPE_VARCHAR')) {
define('MYSQLI_TYPE_VARCHAR', 15);
}
/**
* Helper function for connecting to the database server
*
* @param mysqli $link
* @param string $host
* @param string $user
* @param string $password
* @param string $dbname
* @param int $server_port
* @param string $server_socket
* @param int $client_flags
* @param bool $persistent
* @return bool
*/
function PMA_DBI_real_connect($link, $host, $user, $password, $dbname, $server_port, $server_socket, $client_flags = null, $persistent = false)
{
global $cfg;
// mysqli persistent connections only on PHP 5.3+
if (PMA_PHP_INT_VERSION >= 50300) {
if ($cfg['PersistentConnections'] || $persistent) {
$host = 'p:' . $host;
}
}
if ($client_flags === null) {
return @mysqli_real_connect(
$link,
$host,
$user,
$password,
$dbname,
$server_port,
$server_socket
);
} else {
return @mysqli_real_connect(
$link,
$host,
$user,
$password,
$dbname,
$server_port,
$server_socket,
$client_flags
);
}
}
/**
* connects to the database server
*
* @param string $user mysql user name
* @param string $password mysql user password
* @param bool $is_controluser
* @param array $server host/port/socket
* @param bool $auxiliary_connection (when true, don't go back to login if connection fails)
* @return mixed false on error or a mysqli object on success
*/
function PMA_DBI_connect($user, $password, $is_controluser = false, $server = null, $auxiliary_connection = false)
{
global $cfg;
if ($server) {
$server_port = (empty($server['port']))
? false
: (int)$server['port'];
$server_socket = (empty($server['socket']))
? ''
: $server['socket'];
$server['host'] = (empty($server['host']))
? 'localhost'
: $server['host'];
} else {
$server_port = (empty($cfg['Server']['port']))
? false
: (int) $cfg['Server']['port'];
$server_socket = (empty($cfg['Server']['socket']))
? null
: $cfg['Server']['socket'];
}
// NULL enables connection to the default socket
$link = mysqli_init();
mysqli_options($link, MYSQLI_OPT_LOCAL_INFILE, true);
$client_flags = 0;
/* Optionally compress connection */
if ($cfg['Server']['compress'] && defined('MYSQLI_CLIENT_COMPRESS')) {
$client_flags |= MYSQLI_CLIENT_COMPRESS;
}
/* Optionally enable SSL */
if ($cfg['Server']['ssl'] && defined('MYSQLI_CLIENT_SSL')) {
$client_flags |= MYSQLI_CLIENT_SSL;
}
if (!$server) {
$return_value = @PMA_DBI_real_connect(
$link,
$cfg['Server']['host'],
$user,
$password,
false,
$server_port,
$server_socket,
$client_flags
);
// Retry with empty password if we're allowed to
if ($return_value == false && isset($cfg['Server']['nopassword']) && $cfg['Server']['nopassword'] && !$is_controluser) {
$return_value = @PMA_DBI_real_connect(
$link,
$cfg['Server']['host'],
$user,
'',
false,
$server_port,
$server_socket,
$client_flags
);
}
} else {
$return_value = @PMA_DBI_real_connect(
$link,
$server['host'],
$user,
$password,
false,
$server_port,
$server_socket
);
}
if ($return_value == false) {
if ($is_controluser) {
trigger_error(
__('Connection for controluser as defined in your configuration failed.'),
E_USER_WARNING
);
return false;
}
// we could be calling PMA_DBI_connect() to connect to another
// server, for example in the Synchronize feature, so do not
// go back to main login if it fails
if (! $auxiliary_connection) {
PMA_log_user($user, 'mysql-denied');
PMA_auth_fails();
} else {
return false;
}
} else {
PMA_DBI_postConnect($link, $is_controluser);
}
return $link;
}
/**
* selects given database
*
* @param string $dbname database name to select
* @param mysqli $link the mysqli object
* @return boolean
*/
function PMA_DBI_select_db($dbname, $link = null)
{
if (empty($link)) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
return mysqli_select_db($link, $dbname);
}
/**
* runs a query and returns the result
*
* @param string $query query to execute
* @param mysqli $link mysqli object
* @param int $options
* @return mysqli_result|bool
*/
function PMA_DBI_real_query($query, $link, $options)
{
if ($options == ($options | PMA_DBI_QUERY_STORE)) {
$method = MYSQLI_STORE_RESULT;
} elseif ($options == ($options | PMA_DBI_QUERY_UNBUFFERED)) {
$method = MYSQLI_USE_RESULT;
} else {
$method = 0;
}
return mysqli_query($link, $query, $method);
}
/**
* returns array of rows with associative and numeric keys from $result
*
* @param mysqli_result $result
* @return array
*/
function PMA_DBI_fetch_array($result)
{
return mysqli_fetch_array($result, MYSQLI_BOTH);
}
/**
* returns array of rows with associative keys from $result
*
* @param mysqli_result $result
* @return array
*/
function PMA_DBI_fetch_assoc($result)
{
return mysqli_fetch_array($result, MYSQLI_ASSOC);
}
/**
* returns array of rows with numeric keys from $result
*
* @param mysqli_result $result
* @return array
*/
function PMA_DBI_fetch_row($result)
{
return mysqli_fetch_array($result, MYSQLI_NUM);
}
/**
* Adjusts the result pointer to an arbitrary row in the result
*
* @param $result
* @param $offset
* @return bool true on success, false on failure
*/
function PMA_DBI_data_seek($result, $offset)
{
return mysqli_data_seek($result, $offset);
}
/**
* Frees memory associated with the result
*
* @param mysqli_result $result
*/
function PMA_DBI_free_result($result)
{
if ($result instanceof mysqli_result) {
mysqli_free_result($result);
}
}
/**
* Check if there are any more query results from a multi query
*
* @param mysqli $link the mysqli object
* @return bool true or false
*/
function PMA_DBI_more_results($link = null)
{
if (empty($link)) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
return mysqli_more_results($link);
}
/**
* Prepare next result from multi_query
*
* @param mysqli $link the mysqli object
* @return bool true or false
*/
function PMA_DBI_next_result($link = null)
{
if (empty($link)) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
return mysqli_next_result($link);
}
/**
* Returns a string representing the type of connection used
*
* @param resource $link mysql link
* @return string type of connection used
*/
function PMA_DBI_get_host_info($link = null)
{
if (null === $link) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
return mysqli_get_host_info($link);
}
/**
* Returns the version of the MySQL protocol used
*
* @param resource $link mysql link
* @return integer version of the MySQL protocol used
*/
function PMA_DBI_get_proto_info($link = null)
{
if (null === $link) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
return mysqli_get_proto_info($link);
}
/**
* returns a string that represents the client library version
*
* @return string MySQL client library version
*/
function PMA_DBI_get_client_info()
{
return mysqli_get_client_info();
}
/**
* returns last error message or false if no errors occured
*
* @param resource $link mysql link
* @return string|bool $error or false
*/
function PMA_DBI_getError($link = null)
{
$GLOBALS['errno'] = 0;
/* Treat false same as null because of controllink */
if ($link === false) {
$link = null;
}
if (null === $link && isset($GLOBALS['userlink'])) {
$link =& $GLOBALS['userlink'];
// Do not stop now. We still can get the error code
// with mysqli_connect_errno()
// } else {
// return false;
}
if (null !== $link) {
$error_number = mysqli_errno($link);
$error_message = mysqli_error($link);
} else {
$error_number = mysqli_connect_errno();
$error_message = mysqli_connect_error();
}
if (0 == $error_number) {
return false;
}
// keep the error number for further check after the call to PMA_DBI_getError()
$GLOBALS['errno'] = $error_number;
return PMA_DBI_formatError($error_number, $error_message);
}
/**
* returns the number of rows returned by last query
*
* @param mysqli_result $result
* @return string|int
*/
function PMA_DBI_num_rows($result)
{
// see the note for PMA_DBI_try_query();
if (!is_bool($result)) {
return @mysqli_num_rows($result);
} else {
return 0;
}
}
/**
* returns last inserted auto_increment id for given $link or $GLOBALS['userlink']
*
* @param mysqli $link the mysqli object
* @return string|int
*/
function PMA_DBI_insert_id($link = null)
{
if (empty($link)) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
// When no controluser is defined, using mysqli_insert_id($link)
// does not always return the last insert id due to a mixup with
// the tracking mechanism, but this works:
return PMA_DBI_fetch_value('SELECT LAST_INSERT_ID();', 0, 0, $link);
// Curiously, this problem does not happen with the mysql extension but
// there is another problem with BIGINT primary keys so PMA_DBI_insert_id()
// in the mysql extension also uses this logic.
}
/**
* returns the number of rows affected by last query
*
* @param mysqli $link the mysqli object
* @param boolean $get_from_cache
* @return string|int
*/
function PMA_DBI_affected_rows($link = null, $get_from_cache = true)
{
if (empty($link)) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
if ($get_from_cache) {
return $GLOBALS['cached_affected_rows'];
} else {
return mysqli_affected_rows($link);
}
}
/**
* returns metainfo for fields in $result
*
* @param mysqli_result $result
* @return array meta info for fields in $result
*/
function PMA_DBI_get_fields_meta($result)
{
// Build an associative array for a type look up
$typeAr = array();
$typeAr[MYSQLI_TYPE_DECIMAL] = 'real';
$typeAr[MYSQLI_TYPE_NEWDECIMAL] = 'real';
$typeAr[MYSQLI_TYPE_BIT] = 'int';
$typeAr[MYSQLI_TYPE_TINY] = 'int';
$typeAr[MYSQLI_TYPE_SHORT] = 'int';
$typeAr[MYSQLI_TYPE_LONG] = 'int';
$typeAr[MYSQLI_TYPE_FLOAT] = 'real';
$typeAr[MYSQLI_TYPE_DOUBLE] = 'real';
$typeAr[MYSQLI_TYPE_NULL] = 'null';
$typeAr[MYSQLI_TYPE_TIMESTAMP] = 'timestamp';
$typeAr[MYSQLI_TYPE_LONGLONG] = 'int';
$typeAr[MYSQLI_TYPE_INT24] = 'int';
$typeAr[MYSQLI_TYPE_DATE] = 'date';
$typeAr[MYSQLI_TYPE_TIME] = 'time';
$typeAr[MYSQLI_TYPE_DATETIME] = 'datetime';
$typeAr[MYSQLI_TYPE_YEAR] = 'year';
$typeAr[MYSQLI_TYPE_NEWDATE] = 'date';
$typeAr[MYSQLI_TYPE_ENUM] = 'unknown';
$typeAr[MYSQLI_TYPE_SET] = 'unknown';
$typeAr[MYSQLI_TYPE_TINY_BLOB] = 'blob';
$typeAr[MYSQLI_TYPE_MEDIUM_BLOB] = 'blob';
$typeAr[MYSQLI_TYPE_LONG_BLOB] = 'blob';
$typeAr[MYSQLI_TYPE_BLOB] = 'blob';
$typeAr[MYSQLI_TYPE_VAR_STRING] = 'string';
$typeAr[MYSQLI_TYPE_STRING] = 'string';
$typeAr[MYSQLI_TYPE_VARCHAR] = 'string'; // for Drizzle
// MySQL returns MYSQLI_TYPE_STRING for CHAR
// and MYSQLI_TYPE_CHAR === MYSQLI_TYPE_TINY
// so this would override TINYINT and mark all TINYINT as string
// https://sf.net/tracker/?func=detail&aid=1532111&group_id=23067&atid=377408
//$typeAr[MYSQLI_TYPE_CHAR] = 'string';
$typeAr[MYSQLI_TYPE_GEOMETRY] = 'geometry';
$typeAr[MYSQLI_TYPE_BIT] = 'bit';
$fields = mysqli_fetch_fields($result);
// this happens sometimes (seen under MySQL 4.0.25)
if (!is_array($fields)) {
return false;
}
foreach ($fields as $k => $field) {
$fields[$k]->_type = $field->type;
$fields[$k]->type = $typeAr[$field->type];
$fields[$k]->_flags = $field->flags;
$fields[$k]->flags = PMA_DBI_field_flags($result, $k);
// Enhance the field objects for mysql-extension compatibilty
//$flags = explode(' ', $fields[$k]->flags);
//array_unshift($flags, 'dummy');
$fields[$k]->multiple_key
= (int) (bool) ($fields[$k]->_flags & MYSQLI_MULTIPLE_KEY_FLAG);
$fields[$k]->primary_key
= (int) (bool) ($fields[$k]->_flags & MYSQLI_PRI_KEY_FLAG);
$fields[$k]->unique_key
= (int) (bool) ($fields[$k]->_flags & MYSQLI_UNIQUE_KEY_FLAG);
$fields[$k]->not_null
= (int) (bool) ($fields[$k]->_flags & MYSQLI_NOT_NULL_FLAG);
$fields[$k]->unsigned
= (int) (bool) ($fields[$k]->_flags & MYSQLI_UNSIGNED_FLAG);
$fields[$k]->zerofill
= (int) (bool) ($fields[$k]->_flags & MYSQLI_ZEROFILL_FLAG);
$fields[$k]->numeric
= (int) (bool) ($fields[$k]->_flags & MYSQLI_NUM_FLAG);
$fields[$k]->blob
= (int) (bool) ($fields[$k]->_flags & MYSQLI_BLOB_FLAG);
}
return $fields;
}
/**
* return number of fields in given $result
*
* @param mysqli_result $result
* @return int field count
*/
function PMA_DBI_num_fields($result)
{
return mysqli_num_fields($result);
}
/**
* returns the length of the given field $i in $result
*
* @param mysqli_result $result
* @param int $i field
* @return int length of field
*/
function PMA_DBI_field_len($result, $i)
{
return mysqli_fetch_field_direct($result, $i)->length;
}
/**
* returns name of $i. field in $result
*
* @param mysqli_result $result
* @param int $i field
* @return string name of $i. field in $result
*/
function PMA_DBI_field_name($result, $i)
{
return mysqli_fetch_field_direct($result, $i)->name;
}
/**
* returns concatenated string of human readable field flags
*
* @param mysqli_result $result
* @param int $i field
* @return string field flags
*/
function PMA_DBI_field_flags($result, $i)
{
// This is missing from PHP 5.2.5, see http://bugs.php.net/bug.php?id=44846
if (! defined('MYSQLI_ENUM_FLAG')) {
define('MYSQLI_ENUM_FLAG', 256); // see MySQL source include/mysql_com.h
}
$f = mysqli_fetch_field_direct($result, $i);
$type = $f->type;
$charsetnr = $f->charsetnr;
$f = $f->flags;
$flags = '';
if ($f & MYSQLI_UNIQUE_KEY_FLAG) {
$flags .= 'unique ';
}
if ($f & MYSQLI_NUM_FLAG) {
$flags .= 'num ';
}
if ($f & MYSQLI_PART_KEY_FLAG) {
$flags .= 'part_key ';
}
if ($f & MYSQLI_SET_FLAG) {
$flags .= 'set ';
}
if ($f & MYSQLI_TIMESTAMP_FLAG) {
$flags .= 'timestamp ';
}
if ($f & MYSQLI_AUTO_INCREMENT_FLAG) {
$flags .= 'auto_increment ';
}
if ($f & MYSQLI_ENUM_FLAG) {
$flags .= 'enum ';
}
// See http://dev.mysql.com/doc/refman/6.0/en/c-api-datatypes.html:
// to determine if a string is binary, we should not use MYSQLI_BINARY_FLAG
// but instead the charsetnr member of the MYSQL_FIELD
// structure. Watch out: some types like DATE returns 63 in charsetnr
// so we have to check also the type.
// Unfortunately there is no equivalent in the mysql extension.
if (($type == MYSQLI_TYPE_TINY_BLOB || $type == MYSQLI_TYPE_BLOB || $type == MYSQLI_TYPE_MEDIUM_BLOB || $type == MYSQLI_TYPE_LONG_BLOB || $type == MYSQLI_TYPE_VAR_STRING || $type == MYSQLI_TYPE_STRING) && 63 == $charsetnr) {
$flags .= 'binary ';
}
if ($f & MYSQLI_ZEROFILL_FLAG) {
$flags .= 'zerofill ';
}
if ($f & MYSQLI_UNSIGNED_FLAG) {
$flags .= 'unsigned ';
}
if ($f & MYSQLI_BLOB_FLAG) {
$flags .= 'blob ';
}
if ($f & MYSQLI_MULTIPLE_KEY_FLAG) {
$flags .= 'multiple_key ';
}
if ($f & MYSQLI_UNIQUE_KEY_FLAG) {
$flags .= 'unique_key ';
}
if ($f & MYSQLI_PRI_KEY_FLAG) {
$flags .= 'primary_key ';
}
if ($f & MYSQLI_NOT_NULL_FLAG) {
$flags .= 'not_null ';
}
return trim($flags);
}
?>
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