424 lines
12 KiB
PHP
424 lines
12 KiB
PHP
<?php
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/* vim: set expandtab sw=4 ts=4 sts=4: */
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/**
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* Interface to the classic MySQL extension
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*
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* @package phpMyAdmin-DBI-MySQL
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*/
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if (! defined('PHPMYADMIN')) {
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exit;
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}
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require_once './libraries/logging.lib.php';
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/**
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* MySQL client API
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*/
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if (! defined('PMA_MYSQL_CLIENT_API')) {
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$client_api = explode('.', mysql_get_client_info());
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define('PMA_MYSQL_CLIENT_API', (int)sprintf('%d%02d%02d', $client_api[0], $client_api[1], intval($client_api[2])));
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unset($client_api);
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}
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function PMA_DBI_real_connect($server, $user, $password, $client_flags, $persistant=false)
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{
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global $cfg;
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if (empty($client_flags)) {
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if ($cfg['PersistentConnections'] || $persistant) {
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$link = @mysql_pconnect($server, $user, $password);
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} else {
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$link = @mysql_connect($server, $user, $password);
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}
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} else {
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if ($cfg['PersistentConnections'] || $persistant) {
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$link = @mysql_pconnect($server, $user, $password, $client_flags);
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} else {
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$link = @mysql_connect($server, $user, $password, false, $client_flags);
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}
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}
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return $link;
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}
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/**
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* @param string $user mysql user name
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* @param string $password mysql user password
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* @param boolean $is_controluser
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* @param array $server host/port/socket/persistant
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* @param boolean $auxiliary_connection (when true, don't go back to login if connection fails)
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* @return mixed false on error or a mysqli object on success
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*/
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function PMA_DBI_connect($user, $password, $is_controluser = false, $server = null, $auxiliary_connection = false)
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{
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global $cfg, $php_errormsg;
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if ($server) {
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$server_port = (empty($server['port']))
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? ''
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: ':' . (int)$server['port'];
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$server_socket = (empty($server['socket']))
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? ''
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: ':' . $server['socket'];
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$server_persistant = (empty($server['persistant']))
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? false
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: true;
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} else {
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$server_port = (empty($cfg['Server']['port']))
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? ''
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: ':' . (int)$cfg['Server']['port'];
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$server_socket = (empty($cfg['Server']['socket']))
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? ''
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: ':' . $cfg['Server']['socket'];
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}
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if (strtolower($cfg['Server']['connect_type']) == 'tcp') {
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$cfg['Server']['socket'] = '';
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}
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$client_flags = 0;
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// always use CLIENT_LOCAL_FILES as defined in mysql_com.h
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// for the case where the client library was not compiled
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// with --enable-local-infile
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$client_flags |= 128;
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/* Optionally compress connection */
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if (defined('MYSQL_CLIENT_COMPRESS') && $cfg['Server']['compress']) {
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$client_flags |= MYSQL_CLIENT_COMPRESS;
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}
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/* Optionally enable SSL */
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if (defined('MYSQL_CLIENT_SSL') && $cfg['Server']['ssl']) {
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$client_flags |= MYSQL_CLIENT_SSL;
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}
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if (!$server) {
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$link = PMA_DBI_real_connect($cfg['Server']['host'] . $server_port . $server_socket, $user, $password, empty($client_flags) ? NULL : $client_flags);
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// Retry with empty password if we're allowed to
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if (empty($link) && $cfg['Server']['nopassword'] && !$is_controluser) {
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$link = PMA_DBI_real_connect($cfg['Server']['host'] . $server_port . $server_socket, $user, '', empty($client_flags) ? NULL : $client_flags);
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}
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} else {
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if (!isset($server['host'])) {
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$link = PMA_DBI_real_connect($server_socket, $user, $password, NULL, $server_persistant);
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} else {
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$link = PMA_DBI_real_connect($server['host'] . $server_port . $server_socket, $user, $password, NULL, $server_persistant);
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}
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}
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if (empty($link)) {
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if ($is_controluser) {
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trigger_error(__('Connection for controluser as defined in your configuration failed.'), E_USER_WARNING);
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return false;
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}
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// we could be calling PMA_DBI_connect() to connect to another
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// server, for example in the Synchronize feature, so do not
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// go back to main login if it fails
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if (! $auxiliary_connection) {
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PMA_log_user($user, 'mysql-denied');
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PMA_auth_fails();
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} else {
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return false;
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}
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} // end if
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if (! $server) {
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PMA_DBI_postConnect($link, $is_controluser);
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}
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return $link;
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}
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/**
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* select a db
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*
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* @param string $dbname name of db to select
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* @param resource $link mysql link resource
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* @return boolean success
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*/
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function PMA_DBI_select_db($dbname, $link = null)
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{
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if (empty($link)) {
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if (isset($GLOBALS['userlink'])) {
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$link = $GLOBALS['userlink'];
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} else {
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return false;
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}
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}
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return mysql_select_db($dbname, $link);
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}
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/**
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* runs a query and returns the result
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*
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* @param string $query query to run
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* @param resource $link mysql link resource
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* @param integer $options
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* @return mixed
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*/
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function PMA_DBI_real_query($query, $link, $options)
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{
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if ($options == ($options | PMA_DBI_QUERY_STORE)) {
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return mysql_query($query, $link);
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} elseif ($options == ($options | PMA_DBI_QUERY_UNBUFFERED)) {
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return mysql_unbuffered_query($query, $link);
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} else {
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return mysql_query($query, $link);
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}
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}
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function PMA_DBI_fetch_array($result)
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{
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return mysql_fetch_array($result, MYSQL_BOTH);
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}
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function PMA_DBI_fetch_assoc($result) {
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return mysql_fetch_array($result, MYSQL_ASSOC);
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}
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function PMA_DBI_fetch_row($result)
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{
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return mysql_fetch_array($result, MYSQL_NUM);
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}
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/*
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* Adjusts the result pointer to an arbitrary row in the result
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*
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* @param $result
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* @param $offset
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* @return boolean true on success, false on failure
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*/
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function PMA_DBI_data_seek($result, $offset)
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{
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return mysql_data_seek($result, $offset);
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}
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/**
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* Frees the memory associated with the results
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*
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* @param result $result,... one or more mysql result resources
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*/
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function PMA_DBI_free_result()
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{
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foreach (func_get_args() as $result) {
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if (is_resource($result)
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&& get_resource_type($result) === 'mysql result') {
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mysql_free_result($result);
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}
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}
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}
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/**
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* Check if there are any more query results from a multi query
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*
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* @return boolean false
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*/
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function PMA_DBI_more_results() {
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// N.B.: PHP's 'mysql' extension does not support
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// multi_queries so this function will always
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// return false. Use the 'mysqli' extension, if
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// you need support for multi_queries.
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return false;
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}
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/**
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* Prepare next result from multi_query
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*
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* @return boolean false
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*/
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function PMA_DBI_next_result() {
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// N.B.: PHP's 'mysql' extension does not support
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// multi_queries so this function will always
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// return false. Use the 'mysqli' extension, if
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// you need support for multi_queries.
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return false;
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}
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/**
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* Returns a string representing the type of connection used
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* @param resource $link mysql link
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* @return string type of connection used
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*/
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function PMA_DBI_get_host_info($link = null)
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{
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if (null === $link) {
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if (isset($GLOBALS['userlink'])) {
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$link = $GLOBALS['userlink'];
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} else {
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return false;
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}
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}
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return mysql_get_host_info($link);
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}
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/**
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* Returns the version of the MySQL protocol used
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* @param resource $link mysql link
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* @return integer version of the MySQL protocol used
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*/
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function PMA_DBI_get_proto_info($link = null)
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{
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if (null === $link) {
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if (isset($GLOBALS['userlink'])) {
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$link = $GLOBALS['userlink'];
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} else {
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return false;
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}
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}
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return mysql_get_proto_info($link);
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}
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/**
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* returns a string that represents the client library version
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* @return string MySQL client library version
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*/
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function PMA_DBI_get_client_info()
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{
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return mysql_get_client_info();
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}
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/**
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* returns last error message or false if no errors occured
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*
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* @param resource $link mysql link
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* @return string|boolean $error or false
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*/
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function PMA_DBI_getError($link = null)
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{
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$GLOBALS['errno'] = 0;
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/* Treat false same as null because of controllink */
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if ($link === false) {
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$link = null;
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}
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if (null === $link && isset($GLOBALS['userlink'])) {
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$link =& $GLOBALS['userlink'];
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// Do not stop now. On the initial connection, we don't have a $link,
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// we don't have a $GLOBALS['userlink'], but we can catch the error code
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// } else {
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// return false;
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}
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if (null !== $link && false !== $link) {
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$error_number = mysql_errno($link);
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$error_message = mysql_error($link);
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} else {
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$error_number = mysql_errno();
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$error_message = mysql_error();
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}
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if (0 == $error_number) {
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return false;
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}
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// keep the error number for further check after the call to PMA_DBI_getError()
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$GLOBALS['errno'] = $error_number;
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if (! empty($error_message)) {
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$error_message = PMA_DBI_convert_message($error_message);
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}
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$error_message = htmlspecialchars($error_message);
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// Some errors messages cannot be obtained by mysql_error()
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if ($error_number == 2002) {
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$error = '#' . ((string) $error_number) . ' - ' . __('The server is not responding') . ' ' . __('(or the local MySQL server\'s socket is not correctly configured)');
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} elseif ($error_number == 2003) {
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$error = '#' . ((string) $error_number) . ' - ' . __('The server is not responding');
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} elseif ($error_number == 1005) {
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/* InnoDB contraints, see
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* http://dev.mysql.com/doc/refman/5.0/en/innodb-foreign-key-constraints.html
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*/
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$error = '#' . ((string) $error_number) . ' - ' . $error_message .
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' (<a href="server_engines.php' . PMA_generate_common_url(array('engine' => 'InnoDB', 'page' => 'Status')).
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'">' . __('Details...') . '</a>)';
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} else {
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$error = '#' . ((string) $error_number) . ' - ' . $error_message;
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}
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return $error;
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}
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function PMA_DBI_num_rows($result)
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{
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if (!is_bool($result)) {
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return mysql_num_rows($result);
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} else {
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return 0;
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}
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}
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function PMA_DBI_insert_id($link = null)
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{
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if (empty($link)) {
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if (isset($GLOBALS['userlink'])) {
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$link = $GLOBALS['userlink'];
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} else {
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return false;
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}
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}
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// If the primary key is BIGINT we get an incorrect result
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// (sometimes negative, sometimes positive)
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// and in the present function we don't know if the PK is BIGINT
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// so better play safe and use LAST_INSERT_ID()
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//
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return PMA_DBI_fetch_value('SELECT LAST_INSERT_ID();', 0, 0, $link);
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}
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/**
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* returns the number of rows affected by last query
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*
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* @param object mysql $link the mysql object
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* @param boolean $get_from_cache
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* @return string integer
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*/
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function PMA_DBI_affected_rows($link = null, $get_from_cache = true)
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{
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if (empty($link)) {
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if (isset($GLOBALS['userlink'])) {
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$link = $GLOBALS['userlink'];
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} else {
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return false;
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}
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}
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if ($get_from_cache) {
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return $GLOBALS['cached_affected_rows'];
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} else {
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return mysql_affected_rows($link);
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}
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}
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/**
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* @todo add missing keys like in from mysqli_query (orgname, orgtable, flags, decimals)
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*/
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function PMA_DBI_get_fields_meta($result)
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{
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$fields = array();
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$num_fields = mysql_num_fields($result);
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for ($i = 0; $i < $num_fields; $i++) {
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$fields[] = mysql_fetch_field($result, $i);
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}
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return $fields;
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}
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function PMA_DBI_num_fields($result)
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{
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return mysql_num_fields($result);
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}
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function PMA_DBI_field_len($result, $i)
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{
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return mysql_field_len($result, $i);
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}
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function PMA_DBI_field_name($result, $i)
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{
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return mysql_field_name($result, $i);
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}
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function PMA_DBI_field_flags($result, $i)
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{
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return mysql_field_flags($result, $i);
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}
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?>
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