不知道是应该感谢新型冠状病毒还是怎么着,给了我一个过年在家看技术的时间开玩笑还是希望这该死的东西早日滚蛋,武汉一切顺利,中国一切顺利,上海一切顺利吧。先从解决一个小问题开始吧。
线上系统一直需要管理mysql和查询mysql的数据,但是由于严格的网络测试,所有除了80、443之外的端口不开放,ssh也是通过运维两层跳板进入的,这给管理mysql带来非常大的麻烦。之前用过一段时间的phpmyadmin,其实非常不好用,尤其是在做一些线上比较复杂的查询操作时,而且可能安全性也有问题吧,一直想换其他方式,看看能不能通过http最好是https实现这个需求。
想到过通过nginx的tcp代理,但是发现并不行,那是纯tcp代理,不能把http代理给tcp。记得Navicat在新建连接时候有http选项那它是怎么做的?一看之下发现原来他是通过自带的PHP脚本实现,那这个PHP脚本在什么地方?如何使用呢?
下图:
看一看见导出一个php脚本,也就是将PHP脚本上传到服务器上应该就可以了,看了下导入的PHP脚本如下:
<?php //version my202
//set allowTestMenu to false to disable System/Server test page
$allowTestMenu = true;
$use_mysqli = function_exists("mysqli_connect");
header("Content-Type: text/plain; charset=x-user-defined");
error_reporting(0);
set_time_limit(0);
function phpversion_int()
{
list($maVer, $miVer, $edVer) = preg_split("(/|\.|-)", phpversion());
return $maVer*10000 + $miVer*100 + $edVer;
}
if (phpversion_int() < 50300)
{
set_magic_quotes_runtime(0);
}
function GetLongBinary($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)
{
if ($GLOBALS['use_mysqli']) {
$str = GetBlock(mysqli_get_host_info($conn));
$str .= GetBlock(mysqli_get_proto_info($conn));
$str .= GetBlock(mysqli_get_server_info($conn));
echo $str;
} else {
$str = GetBlock(mysql_get_host_info($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; $i++ ) {
if ($GLOBALS['use_mysqli']) {
$finfo = mysqli_fetch_field_direct($res, $i);
$str .= GetBlock($finfo->name);
$str .= GetBlock($finfo->table);
$type = $finfo->type;
$length = $finfo->length;
$str .= GetLongBinary($type);
$intflag = $finfo->flags;
$str .= GetLongBinary($intflag);
$str .= GetLongBinary($length);
} else {
$str .= GetBlock(mysql_field_name($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;
else $type = 3;
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 = "";
$row = null;
if ($GLOBALS['use_mysqli'])
$row = mysqli_fetch_row( $res );
else
$row = mysql_fetch_row( $res );
for( $j = 0; $j < $numfields; $j++ ){
if( is_null($row[$j]) )
$str .= "\xFF";
else
$str .= GetBlock($row[$j]);
}
echo $str;
}
}
function doSystemTest()
{
function output($description, $succ, $resStr) {
echo "<tr><td class=\"TestDesc\">$description</td><td ";
echo ($succ)? "class=\"TestSucc\">$resStr[0]</td></tr>" : "class=\"TestFail\">$resStr[1]</td></tr>";
}
output("PHP version >= 4.0.5", phpversion_int() >= 40005, array("Yes", "No"));
output("mysql_connect() available", function_exists("mysql_connect"), array("Yes", "No"));
output("mysqli_connect() available", function_exists("mysqli_connect"), array("Yes", "No"));
if (phpversion_int() >= 40302 && substr($_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"));
}
}
/////////////////////////////////////////////////////////////////////////////
////
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") && !function_exists("mysqli_connect")) {
EchoHeader(203);
echo GetBlock("MySQL not supported on the server");
exit();
}
$errno_c = 0;
$hs = $_POST["host"];
if ($use_mysqli) {
if( $_POST["port"] )
$conn = mysqli_connect($hs, $_POST["login"], $_POST["password"], "", $_POST["port"]);
else
$conn = mysqli_connect($hs, $_POST["login"], $_POST["password"]);
$errno_c = mysqli_connect_errno($conn);
if($errno_c > 0) {
EchoHeader($errno_c);
echo GetBlock(mysqli_connect_error($conn));
exit;
}
if(($errno_c <= 0) && ( $_POST["db"] != "" )) {
$res = mysqli_select_db($conn, $_POST["db"] );
$errno_c = mysqli_errno($conn);
}
EchoHeader($errno_c);
if($errno_c > 0) {
echo GetBlock(mysqli_error($conn));
} elseif($_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 (phpversion_int() < 50400){
if(get_magic_quotes_gpc())
$query = stripslashes($query);
}
$res = mysqli_query($conn, $query);
$errno = mysqli_errno($conn);
$affectedrows = mysqli_affected_rows($conn);
$insertid = mysqli_insert_id($conn);
if (false !== $res) {
$numfields = mysqli_field_count($conn);
$numrows = mysqli_num_rows($res);
}
else {
$numfields = 0;
$numrows = 0;
}
EchoResultSetHeader($errno, $affectedrows, $insertid, $numfields, $numrows);
if($errno > 0)
echo GetBlock(mysqli_error($conn));
else {
if($numfields > 0) {
EchoFieldsHeader($res, $numfields);
EchoData($res, $numfields, $numrows);
} else {
if(phpversion_int() >= 40300)
echo GetBlock(mysqli_info($conn));
else
echo GetBlock("");
}
}
if($i<(count($_POST["q"])-1))
echo "\x01";
else
echo "\x00";
if (false !== $res)
mysqli_free_result($res);
}
}
} else {
if( $_POST["port"] ) $hs .= ":".$_POST["port"];
$conn = mysql_connect($hs, $_POST["login"], $_POST["password"]);
$errno_c = mysql_errno();
//if (phpversion_int() >= 50203){ // for unicode database name
// mysql_set_charset('UTF8');
//}
if(($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 (phpversion_int() < 50400){
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();
}
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™</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 © PremiumSoft ™ CyberTech Ltd. All Rights Reserved.</p>
</div>
</body>
</html>
看了下代码愿你是通过mysqli或者mysql_connect实现的,那就把它放到服务器上弄下。由于习惯用Docker了,那先把这个脚本做成docker image吧。Dockerfile如下:
FROM php:7.4-apache
RUN docker-php-ext-install mysqli
COPY ntunnel_mysql.php /var/www/html
之后运行:
docker build . -t php_mysql_proxy:latest
将其发布在私有的镜像服务器上,之后在服务器上执行:
docker run -d -p 8899:80 --name=php_mysql_proxy --restart=always register_xxx:latest
这样就将镜像启动了
后面看下如何代理出来通过ngnix并将设置https,ssl证书来自阿里云,同时设置了http基本认知的密码
server {
listen 443 ssl http2;
server_name db.xxx.com;
ssl on;
deny 106.61.108.91;
ssl_certificate /usr/local/nginx/conf/3410262_db.xxx.com.pem;
ssl_certificate_key /usr/local/nginx/conf/3410262_db.xxx.com.key;
ssl_session_timeout 5m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
ssl_prefer_server_ciphers on;
location /ntunnel_mysql.php {
proxy_pass http://localhost:8899/ntunnel_mysql.php;
}
if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2})") {
set $year $1;
set $month $2;
set $day $3;
}
auth_basic "Please input password";
auth_basic_user_file /usr/local/nginx/conf/htpasswd;
access_log /data/NginxLog/$year-$month-$day-db.jszbtb.com-access.log main;
}
nginx配置http基本认证方法如下:
1.安装httpd_tools
yum -y install httpd-tools
2.运行如下命令生成密码文件:
htpasswd -c /usr/local/src/nginx/passwd coderschool
New password:
Re-type new password:
Adding password for user coderschool
打开部署的网页可以看到:
填入内网的mysql地址用户名等信息测试下
在Navicat这样设置就可以了:
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