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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Interface to the classic MySQL extension
*
* @package phpMyAdmin-DBI-MySQL
*/
if (! defined('PHPMYADMIN')) {
exit;
}
require_once './libraries/logging.lib.php';
/**
* MySQL client API
*/
if (! defined('PMA_MYSQL_CLIENT_API')) {
$client_api = explode('.', mysql_get_client_info());
define('PMA_MYSQL_CLIENT_API', (int)sprintf('%d%02d%02d', $client_api[0], $client_api[1], intval($client_api[2])));
unset($client_api);
}
function PMA_DBI_real_connect($server, $user, $password, $client_flags, $persistant=false)
{
global $cfg;
if (empty($client_flags)) {
if ($cfg['PersistentConnections'] || $persistant) {
$link = @mysql_pconnect($server, $user, $password);
} else {
$link = @mysql_connect($server, $user, $password);
}
} else {
if ($cfg['PersistentConnections'] || $persistant) {
$link = @mysql_pconnect($server, $user, $password, $client_flags);
} else {
$link = @mysql_connect($server, $user, $password, false, $client_flags);
}
}
return $link;
}
/**
* @param string $user mysql user name
* @param string $password mysql user password
* @param boolean $is_controluser
* @param array $server host/port/socket/persistant
* @param boolean $auxiliary_connection (when true, don't go back to login if connection fails)
* @return mixed false on error or a mysqli object on success
*/
function PMA_DBI_connect($user, $password, $is_controluser = false, $server = null, $auxiliary_connection = false)
{
global $cfg, $php_errormsg;
if ($server) {
$server_port = (empty($server['port']))
? ''
: ':' . (int)$server['port'];
$server_socket = (empty($server['socket']))
? ''
: ':' . $server['socket'];
$server_persistant = (empty($server['persistant']))
? false
: true;
} else {
$server_port = (empty($cfg['Server']['port']))
? ''
: ':' . (int)$cfg['Server']['port'];
$server_socket = (empty($cfg['Server']['socket']))
? ''
: ':' . $cfg['Server']['socket'];
}
if (strtolower($cfg['Server']['connect_type']) == 'tcp') {
$cfg['Server']['socket'] = '';
}
$client_flags = 0;
// always use CLIENT_LOCAL_FILES as defined in mysql_com.h
// for the case where the client library was not compiled
// with --enable-local-infile
$client_flags |= 128;
/* Optionally compress connection */
if (defined('MYSQL_CLIENT_COMPRESS') && $cfg['Server']['compress']) {
$client_flags |= MYSQL_CLIENT_COMPRESS;
}
/* Optionally enable SSL */
if (defined('MYSQL_CLIENT_SSL') && $cfg['Server']['ssl']) {
$client_flags |= MYSQL_CLIENT_SSL;
}
if (!$server) {
$link = PMA_DBI_real_connect($cfg['Server']['host'] . $server_port . $server_socket, $user, $password, empty($client_flags) ? NULL : $client_flags);
// Retry with empty password if we're allowed to
if (empty($link) && $cfg['Server']['nopassword'] && !$is_controluser) {
$link = PMA_DBI_real_connect($cfg['Server']['host'] . $server_port . $server_socket, $user, '', empty($client_flags) ? NULL : $client_flags);
}
} else {
if (!isset($server['host'])) {
$link = PMA_DBI_real_connect($server_socket, $user, $password, NULL, $server_persistant);
} else {
$link = PMA_DBI_real_connect($server['host'] . $server_port . $server_socket, $user, $password, NULL, $server_persistant);
}
}
if (empty($link)) {
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;
}
} // end if
if (! $server) {
PMA_DBI_postConnect($link, $is_controluser);
}
return $link;
}
/**
* select a db
*
* @param string $dbname name of db to select
* @param resource $link mysql link resource
* @return boolean success
*/
function PMA_DBI_select_db($dbname, $link = null)
{
if (empty($link)) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
return mysql_select_db($dbname, $link);
}
/**
* runs a query and returns the result
*
* @param string $query query to run
* @param resource $link mysql link resource
* @param integer $options
* @return mixed
*/
function PMA_DBI_try_query($query, $link = null, $options = 0, $cache_affected_rows = true)
{
if (empty($link)) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
if ($GLOBALS['cfg']['DBG']['sql']) {
$time = microtime(true);
}
if ($options == ($options | PMA_DBI_QUERY_STORE)) {
$r = mysql_query($query, $link);
} elseif ($options == ($options | PMA_DBI_QUERY_UNBUFFERED)) {
$r = mysql_unbuffered_query($query, $link);
} else {
$r = mysql_query($query, $link);
}
if ($cache_affected_rows) {
$GLOBALS['cached_affected_rows'] = PMA_DBI_affected_rows($link, $get_from_cache = false);
}
if ($GLOBALS['cfg']['DBG']['sql']) {
$time = microtime(true) - $time;
$hash = md5($query);
if (isset($_SESSION['debug']['queries'][$hash])) {
$_SESSION['debug']['queries'][$hash]['count']++;
} else {
$_SESSION['debug']['queries'][$hash] = array();
$_SESSION['debug']['queries'][$hash]['count'] = 1;
$_SESSION['debug']['queries'][$hash]['query'] = $query;
$_SESSION['debug']['queries'][$hash]['time'] = $time;
}
$trace = array();
foreach (debug_backtrace() as $trace_step) {
$trace[] = PMA_Error::relPath($trace_step['file']) . '#'
. $trace_step['line'] . ': '
. (isset($trace_step['class']) ? $trace_step['class'] : '')
//. (isset($trace_step['object']) ? get_class($trace_step['object']) : '')
. (isset($trace_step['type']) ? $trace_step['type'] : '')
. (isset($trace_step['function']) ? $trace_step['function'] : '')
. '('
. (isset($trace_step['params']) ? implode(', ', $trace_step['params']) : '')
. ')'
;
}
$_SESSION['debug']['queries'][$hash]['trace'][] = $trace;
}
if ($r != FALSE && PMA_Tracker::isActive() == TRUE ) {
PMA_Tracker::handleQuery($query);
}
return $r;
}
function PMA_DBI_fetch_array($result)
{
return mysql_fetch_array($result, MYSQL_BOTH);
}
function PMA_DBI_fetch_assoc($result) {
return mysql_fetch_array($result, MYSQL_ASSOC);
}
function PMA_DBI_fetch_row($result)
{
return mysql_fetch_array($result, MYSQL_NUM);
}
/*
* Adjusts the result pointer to an arbitrary row in the result
*
* @uses mysql_data_seek()
* @param $result
* @param $offset
* @return boolean true on success, false on failure
*/
function PMA_DBI_data_seek($result, $offset)
{
return mysql_data_seek($result, $offset);
}
/**
* Frees the memory associated with the results
*
* @param result $result,... one or more mysql result resources
*/
function PMA_DBI_free_result()
{
foreach (func_get_args() as $result) {
if (is_resource($result)
&& get_resource_type($result) === 'mysql result') {
mysql_free_result($result);
}
}
}
/**
* Returns a string representing the type of connection used
* @uses mysql_get_host_info()
* @uses $GLOBALS['userlink'] as default for $link
* @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 = $GLOBALS['userlink'];
} else {
return false;
}
}
return mysql_get_host_info($link);
}
/**
* Returns the version of the MySQL protocol used
* @uses mysql_get_proto_info()
* @uses $GLOBALS['userlink'] as default for $link
* @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 = $GLOBALS['userlink'];
} else {
return false;
}
}
return mysql_get_proto_info($link);
}
/**
* returns a string that represents the client library version
* @uses mysql_get_client_info()
* @return string MySQL client library version
*/
function PMA_DBI_get_client_info()
{
return mysql_get_client_info();
}
/**
* returns last error message or false if no errors occured
*
* @uses PMA_DBI_convert_message()
* @uses $GLOBALS['errno']
* @uses $GLOBALS['userlink']
* @uses mysql_errno()
* @uses mysql_error()
* @uses defined()
* @uses PMA_generate_common_url()
* @param resource $link mysql link
* @return string|boolean $error or false
*/
function PMA_DBI_getError($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. On the initial connection, we don't have a $link,
// we don't have a $GLOBALS['userlink'], but we can catch the error code
// } else {
// return false;
}
if (null !== $link && false !== $link) {
$error_number = mysql_errno($link);
$error_message = mysql_error($link);
} else {
$error_number = mysql_errno();
$error_message = mysql_error();
}
if (0 == $error_number) {
return false;
}
// keep the error number for further check after the call to PMA_DBI_getError()
$GLOBALS['errno'] = $error_number;
if (! empty($error_message)) {
$error_message = PMA_DBI_convert_message($error_message);
}
$error_message = htmlspecialchars($error_message);
// Some errors messages cannot be obtained by mysql_error()
if ($error_number == 2002) {
$error = '#' . ((string) $error_number) . ' - ' . __('The server is not responding') . ' ' . __('(or the local MySQL server\'s socket is not correctly configured)');
} elseif ($error_number == 2003) {
$error = '#' . ((string) $error_number) . ' - ' . __('The server is not responding');
} elseif ($error_number == 1005) {
/* InnoDB contraints, see
* http://dev.mysql.com/doc/refman/5.0/en/innodb-foreign-key-constraints.html
*/
$error = '#' . ((string) $error_number) . ' - ' . $error_message .
' (<a href="server_engines.php' . PMA_generate_common_url(array('engine' => 'InnoDB', 'page' => 'Status')).
'">' . __('Details...') . '</a>)';
} else {
$error = '#' . ((string) $error_number) . ' - ' . $error_message;
}
return $error;
}
function PMA_DBI_num_rows($result)
{
if (!is_bool($result)) {
return mysql_num_rows($result);
} else {
return 0;
}
}
function PMA_DBI_insert_id($link = null)
{
if (empty($link)) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
// If the primary key is BIGINT we get an incorrect result
// (sometimes negative, sometimes positive)
// and in the present function we don't know if the PK is BIGINT
// so better play safe and use LAST_INSERT_ID()
//
return PMA_DBI_fetch_value('SELECT LAST_INSERT_ID();', 0, 0, $link);
}
/**
* returns the number of rows affected by last query
*
* @uses $GLOBALS['userlink']
* @uses mysql_affected_rows()
* @param object mysql $link the mysql object
* @param boolean $get_from_cache
* @return string integer
*/
function PMA_DBI_affected_rows($link = null, $get_from_cache = true)
{
if (empty($link)) {
if (isset($GLOBALS['userlink'])) {
$link = $GLOBALS['userlink'];
} else {
return false;
}
}
if ($get_from_cache) {
return $GLOBALS['cached_affected_rows'];
} else {
return mysql_affected_rows($link);
}
}
/**
* @todo add missing keys like in from mysqli_query (decimals)
*/
function PMA_DBI_get_fields_meta($result)
{
$fields = array();
$num_fields = mysql_num_fields($result);
for ($i = 0; $i < $num_fields; $i++) {
$field = mysql_fetch_field($result, $i);
$field->flags = mysql_field_flags($result, $i);
$field->orgtable = mysql_field_table($result, $i);
$field->orgname = mysql_field_name($result, $i);
$fields[] = $field;
}
return $fields;
}
function PMA_DBI_num_fields($result)
{
return mysql_num_fields($result);
}
function PMA_DBI_field_len($result, $i)
{
return mysql_field_len($result, $i);
}
function PMA_DBI_field_name($result, $i)
{
return mysql_field_name($result, $i);
}
function PMA_DBI_field_flags($result, $i)
{
return mysql_field_flags($result, $i);
}
?>
