Conectarea la o baza de date mysql folosind Navicat

Configurare noua (How To)

Situatie

Deținem un server linux cu o pagină web și avem nevoie de a accesa baza de date folosind o aplicatie prietenoasă. Navicat este o aplicație foarte ușor de folosit.

Pentru a configura Navicat cu un mysql se procedeaza în felul următor:

Solutie

Pasi de urmat

Creăm o noua conecțiune unde în exemplul nostru este către 192.168.0.100

1

Setăm un tunel HTTP către un fișier numit ntu.php pe care îl creăm în pasul următor. Fișierul ntu.php se va adăuga în folder-ul root al siteului.

2

După care salvăm apasând butonul OK.

Creăm un fișier ntu.php unde introducem codul următor:

 

<?php    //version my202

//set allowTestMenu to false to disable System/Server test page
$allowTestMenu = true;

header(“Content-Type: text/plain; charset=x-user-defined”);
error_reporting(0);
set_time_limit(0);
set_magic_quotes_runtime(0);

function phpversion_int()
{
list($maVer, $miVer, $edVer) = split(“[/.-]”, phpversion());
return $maVer*10000 + $miVer*100 + $edVer;
}

function GetLongBinary($num)
{
return pack(“N”,$num);
}

function GetShortBinary($num)
{
return pack(“n”,$num);
}

function GetDummy($count)
{
$str = “”;
for($i=0;$i<$count;$i++)
$str .= “x00”;
return $str;
}

function GetBlock($val)
{
$len = strlen($val);
if( $len < 254 )
return chr($len).$val;
else
return “xFE”.GetLongBinary($len).$val;
}

function EchoHeader($errno)
{
$str = GetLongBinary(1111);
$str .= GetShortBinary(202);
$str .= GetLongBinary($errno);
$str .= GetDummy(6);
echo $str;
}

function EchoConnInfo($conn)
{
$str = GetBlock(mysql_get_host_info($conn));
$str .= GetBlock(mysql_get_proto_info($conn));
$str .= GetBlock(mysql_get_server_info($conn));
echo $str;
}

function EchoResultSetHeader($errno, $affectrows, $insertid, $numfields, $numrows)
{
$str = GetLongBinary($errno);
$str .= GetLongBinary($affectrows);
$str .= GetLongBinary($insertid);
$str .= GetLongBinary($numfields);
$str .= GetLongBinary($numrows);
$str .= GetDummy(12);
echo $str;
}

function EchoFieldsHeader($res, $numfields)
{
$str = “”;
for( $i = 0; $i < $numfields; $i++ ) {
$str .= GetBlock(mysql_field_name($res, $i));
$str .= GetBlock(mysql_field_table($res, $i));

$type = mysql_field_type($res, $i);
$length = mysql_field_len($res, $i);
switch ($type) {
case “int”:
if( $length > 11 ) $type = 8;
elseif( $length > 9 ) $type = 3;
elseif( $length > 6 ) $type = 9;
elseif( $length > 4 ) $type = 2;
else $type = 1;
break;
case “real”:
if( $length == 12 ) $type = 4;
elseif( $length == 22 ) $type = 5;
else $type = 0;
break;
case “null”:
$type = 6;
break;
case “timestamp”:
$type = 7;
break;
case “date”:
$type = 10;
break;
case “time”:
$type = 11;
break;
case “datetime”:
$type = 12;
break;
case “year”:
$type = 13;
break;
case “blob”:
if( $length > 16777215 ) $type = 251;
elseif( $length > 65535 ) $type = 250;
elseif( $length > 255 ) $type = 252;
else $type = 249;
break;
default:
$type = 253;
}
$str .= GetLongBinary($type);

$flags = explode( ” “, mysql_field_flags ( $res, $i ) );
$intflag = 0;
if(in_array( “not_null”, $flags )) $intflag += 1;
if(in_array( “primary_key”, $flags )) $intflag += 2;
if(in_array( “unique_key”, $flags )) $intflag += 4;
if(in_array( “multiple_key”, $flags )) $intflag += 8;
if(in_array( “blob”, $flags )) $intflag += 16;
if(in_array( “unsigned”, $flags )) $intflag += 32;
if(in_array( “zerofill”, $flags )) $intflag += 64;
if(in_array( “binary”, $flags)) $intflag += 128;
if(in_array( “enum”, $flags )) $intflag += 256;
if(in_array( “auto_increment”, $flags )) $intflag += 512;
if(in_array( “timestamp”, $flags )) $intflag += 1024;
if(in_array( “set”, $flags )) $intflag += 2048;
$str .= GetLongBinary($intflag);

$str .= GetLongBinary($length);
}
echo $str;
}

function EchoData($res, $numfields, $numrows)
{
for( $i = 0; $i < $numrows; $i++ ) {
$str = “”;
$row = mysql_fetch_row( $res );
for( $j = 0; $j < $numfields; $j++ ){
if( is_null($row[$j]) )
$str .= “xFF”;
else
$str .= GetBlock($row[$j]);
}
echo $str;
}
}

if (phpversion_int() < 40005) {
EchoHeader(201);
echo GetBlock(“unsupported php version”);
exit();
}

if (phpversion_int() < 40010) {
global $HTTP_POST_VARS;
$_POST = &$HTTP_POST_VARS;
}

if (!isset($_POST[“actn”]) || !isset($_POST[“host”]) || !isset($_POST[“port”]) || !isset($_POST[“login”])) {
$testMenu = $allowTestMenu;
if (!$testMenu){
EchoHeader(202);
echo GetBlock(“invalid parameters”);
exit();
}
}

if (!$testMenu){
if ($_POST[“encodeBase64”] == ‘1’) {
for($i=0;$i<count($_POST[“q”]);$i++)
$_POST[“q”][$i] = base64_decode($_POST[“q”][$i]);
}

if (!function_exists(“mysql_connect”)) {
EchoHeader(203);
echo GetBlock(“MySQL not supported on the server”);
exit();
}

$errno_c = 0;
$hs = $_POST[“host”];
if( $_POST[“port”] ) $hs .= “:”.$_POST[“port”];
$conn = mysql_connect($hs, $_POST[“login”], $_POST[“password”]);
$errno_c = mysql_errno();
if(($errno_c <= 0) && ( $_POST[“db”] != “” )) {
$res = mysql_select_db( $_POST[“db”], $conn);
$errno_c = mysql_errno();
}

EchoHeader($errno_c);
if($errno_c > 0) {
echo GetBlock(mysql_error());
} elseif($_POST[“actn”] == “C”) {
EchoConnInfo($conn);
} elseif($_POST[“actn”] == “Q”) {
for($i=0;$i<count($_POST[“q”]);$i++) {
$query = $_POST[“q”][$i];
if($query == “”) continue;
if(get_magic_quotes_gpc())
$query = stripslashes($query);
$res = mysql_query($query, $conn);
$errno = mysql_errno();
$affectedrows = mysql_affected_rows($conn);
$insertid = mysql_insert_id($conn);
$numfields = mysql_num_fields($res);
$numrows = mysql_num_rows($res);
EchoResultSetHeader($errno, $affectedrows, $insertid, $numfields, $numrows);
if($errno > 0)
echo GetBlock(mysql_error());
else {
if($numfields > 0) {
EchoFieldsHeader($res, $numfields);
EchoData($res, $numfields, $numrows);
} else {
if(phpversion_int() >= 40300)
echo GetBlock(mysql_info($conn));
else
echo GetBlock(“”);
}
}
if($i<(count($_POST[“q”])-1))
echo “x01”;
else
echo “x00”;
mysql_free_result($res);
}
}
exit();
}

function doSystemTest()
{
function output($description, $succ, $resStr) {
echo “<tr><td class=”TestDesc”>$description</td><td “;
echo ($succ)? “class=”TestSucc”>$resStr[0]</td></tr>” : “class=”TestFail”>$resStr[1]</td></tr>”;
}
output(“PHP version >= 4.0.5”, phpversion_int() >= 40005, array(“Yes”, “No”));
output(“mysql_connect() available”, function_exists(“mysql_connect”), array(“Yes”, “No”));
if (phpversion_int() >= 40302 && substr($_SERVER[“SERVER_SOFTWARE”], 0, 6) == “Apache” && function_exists(“apache_get_modules”)){
if (in_array(“mod_security2”, apache_get_modules()))
output(“Mod Security 2 installed”, false, array(“No”, “Yes”));
}
}

header(“Content-Type: text/html”);
?>
<!DOCTYPE html PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd”>
<html>
<head>
<title>Navicat HTTP Tunnel Tester</title>
<meta http-equiv=”Content-Type” content=”text/html; charset=ISO-8859-1″>
<style type=”text/css”>
body{
margin: 30px;
font-family: Tahoma;
font-weight: normal;
font-size: 14px;
color: #222222;
}
table{
width: 100%;
border: 0px;
}
input{
font-family:Tahoma,sans-serif;
border-style:solid;
border-color:#666666;
border-width:1px;
}
fieldset{
border-style:solid;
border-color:#666666;
border-width:1px;
}
.Title1{
font-size: 30px;
color: #003366;
}
.Title2{
font-size: 10px;
color: #999966;
}
.TestDesc{
width:70%
}
.TestSucc{
color: #00BB00;
}
.TestFail{
color: #DD0000;
}
.mysql{
}
.pgsql{
display:none;
}
.sqlite{
display:none;
}
#page{
max-width: 42em;
min-width: 36em;
border-width: 0px;
margin: auto auto;
}
#host, #dbfile{
width: 300px;
}
#port{
width: 75px;
}
#login, #password, #db{
width: 150px;
}
#Copyright{
text-align: right;
font-size: 10px;
color: #888888;
}
</style>
<script type=”text/javascript”>
function getInternetExplorerVersion(){
var ver = -1;
if (navigator.appName == “Microsoft Internet Explorer”){
var regex = new RegExp(“MSIE ([0-9]{1,}[.0-9]{0,})”);
if (regex.exec(navigator.userAgent))
ver = parseFloat(RegExp.$1);
}
return ver;
}
function setText(element, text, succ){
element.className = (succ)?”TestSucc”:”TestFail”;
element.innerHTML = text;
}
function getByteAt(str, offset){
return str.charCodeAt(offset) & 0xff;
}
function getIntAt(binStr, offset){
return (getByteAt(binStr, offset) << 24)+
(getByteAt(binStr, offset+1) << 16)+
(getByteAt(binStr, offset+2) << 8)+
(getByteAt(binStr, offset+3) >>> 0);
}
function getBlockStr(binStr, offset){
if (getByteAt(binStr, offset) < 254)
return binStr.substring(offset+1, offset+1+binStr.charCodeAt(offset));
else
return binStr.substring(offset+5, offset+5+getIntAt(binStr, offset+1));
}
function doServerTest(){
var version = getInternetExplorerVersion();
if (version==-1 || version>=9.0){
var xmlhttp = (window.XMLHttpRequest)? new XMLHttpRequest() : xmlhttp=new ActiveXObject(“Microsoft.XMLHTTP”);

xmlhttp.onreadystatechange=function(){
var outputDiv = document.getElementById(“ServerTest”);
if (xmlhttp.readyState == 4){
if (xmlhttp.status == 200){
var errno = getIntAt(xmlhttp.responseText, 6);
if (errno == 0)
setText(outputDiv, “Connection Success!”, true);
else
setText(outputDiv, parseInt(errno)+” – “+getBlockStr(xmlhttp.responseText, 16), false);
}else
setText(outputDiv, “HTTP Error – “+xmlhttp.status, false);
}
}

var params = “”;
var form = document.getElementById(“TestServerForm”);
for (var i=0; i<form.elements.length; i++){
if (i>0) params += “&”;
params += form.elements[i].id+”=”+form.elements[i].value.replace(“&”, “%26”);
}

document.getElementById(“ServerTest”).className = “”;
document.getElementById(“ServerTest”).innerHTML = “Connecting…”;
xmlhttp.open(“POST”, “”, true);
xmlhttp.setRequestHeader(“Content-type”, “application/x-www-form-urlencoded”);
xmlhttp.setRequestHeader(“Content-length”, params.length);
xmlhttp.setRequestHeader(“Connection”, “close”);
xmlhttp.send(params);
}else{
document.getElementById(“ServerTest”).className = “”;
document.getElementById(“ServerTest”).innerHTML = “Internet Explorer “+version+” is not supported, please use Internet explorer 9.0 or above, firefox, chrome or safari”;
}
}
</script>
</head>

<body>
<div id=”page”>
<p>
<font class=”Title1″>Navicat&trade;</font><br>
<font class=”Title2″>The gateway to your database!</font>
</p>
<fieldset>
<legend>System Environment Test</legend>
<table>
<tr style=”<?php echo “display:none”; ?>”><td width=70%>PHP installed properly</td><td class=”TestFail”>No</td></tr>
<?php echo doSystemTest();?>
</table>
</fieldset>
<br>
<fieldset>
<legend>Server Test</legend>
<form id=”TestServerForm” action=”#” onSubmit=”return false;”>
<input type=hidden id=”actn” value=”C”>
<table>
<tr class=”mysql”><td width=”35%”>Hostname/IP Address:</td><td><input type=text id=”host” placeholder=”localhost”></td></tr>
<tr class=”mysql”><td>Port:</td><td><input type=text id=”port” placeholder=”3306″></td></tr>
<tr class=”pgsql”><td>Initial Database:</td><td><input type=text id=”db” placeholder=”template1″></td></tr>
<tr class=”mysql”><td>Username:</td><td><input type=text id=”login” placeholder=”root”></td></tr>
<tr class=”mysql”><td>Password:</td><td><input type=password id=”password” placeholder=””></td></tr>
<tr class=”sqlite”><td>Database File:</td><td><input type=text id=”dbfile” placeholder=”sqlite.db”></td></tr>
<tr><td></td><td><br><input id=”TestButton” type=”submit” value=”Test Connection” onClick=”doServerTest()”></td></tr>
</table>
</form>
<div id=”ServerTest”><br></div>
</fieldset>
<p id=”Copyright”>Copyright &copy; PremiumSoft &trade; CyberTech Ltd. All Rights Reserved.</p>
</div>
</body>
</html>

Ne conectăm la 192.168.0.100 prin dublu click pe IP.

3

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