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Gulinborsti

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    Strange XML problem

    in XML

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    Hi!First of all I have to admit that my knowlegde of XML is very basic. But I studied the tutorials on www.w3schools.com and was able to achieve what I tried to do. But only in theory... :) My problem is:I want to search this XML data for a specific entry ( /server/name ) and display some of the information about this element in an iFrame on my own page.That's the code i tried:

    <?xml version="1.0" ?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>XML Testpage</title><meta http-equiv="Content-Script-Type" content="text/javascript"><meta http-equiv="Content-Style-Type" content="text/css"><style><!--a:link { font-family:Verdana;font-size:10pt;font-weight:bold; color:#FF0000; text-decoration:none }a:visited { font-family:Verdana;font-size:10pt;font-weight:bold; color:#FF0000; text-decoration:none }a:hover { font-family:Verdana;font-size:10pt;font-weight:bold; color:#FFF000; text-decoration:none }a:active { font-family:Verdana;font-size:10pt;font-weight:bold; color:#FF0000; text-decoration:none }a:focus { font-family:Verdana;font-size:10pt;font-weight:bold; color:#FF0000; text-decoration:none }body, p {font-family:Verdana,Arial;font-size:10pt;color:white;line-height:12pt;}.tabtex  {font-family:Verdana,Arial;font-size:9pt;color:white;line-height :12pt;}.title {font-size: 12pt;color:#FFFFFF;font-weight:bold;text-align:center}.hdr {font-size: 12pt;background-color:#DADADA;color:#000000;font-weight:bold;}.row {font-size: 10pt;background-color:#DADADA;color:#000000;}.altrow {font-size: 10pt;background-color:#FFFFFF;color:#000000;}td {font-size: 12px; font-family: Verdana, Tahoma, Arial, Helvetica; color: #FFFFFF;; scrollbar-face-color:}.TD    {background-color: #666666;   color: #FFFFFF;   font-size: 12px; padding-left:5px; padding-right:3px; padding-top:3px; padding-bottom:3px }.menu  { font-family:Verdana,Arial;font-size:8pt;color:black;}--></style><script type="text/javascript">function GetServerData() {  var xmlDoc=new ActiveXObject('Microsoft.XMLDOM');  xmlDoc.async='false';  xmlDoc.load('http://racecast.rfactor.net/rssfeed/RaceCastRSSFeed.xml');    if (xmlDoc.documentElement == null) {    raceEnter.innerHTML='<font color="yellow">XML not found</font>';  } else {    nodes=xmlDoc.documentElement.childNodes;    for ( var i = 0; i < nodes.length; i++ ) {      if ( nodes(i).childNodes(0).text == 'Littlefoot-Race' ) {        raceEvent.innerHTML=nodes(i).childNodes(4).text;        raceSerie.innerHTML=nodes(i).childNodes(5).text;        raceSession.innerHTML=nodes(i).childNodes(6).text;        racePlayer.innerHTML=nodes(i).childNodes(7).getAttribute('number') + ' / ' + nodes(i).childNodes(7).getAttribute('maximum');        raceEnter.innerHTML='<a href="rfactor://' + nodes(i).childNodes(2).text + ':' + nodes(i).childNodes(3).text + ' +password/">Enter server</a>';            break;      }    }    if ( raceEvent.innerHTML == 'unbekannt' ) {      raceEvent.innerHTML='';      raceSerie.innerHTML='';      raceSession.innerHTML='';      racePlayer.innerHTML='';      raceEnter.innerHTML='<font color="yellow">Server offline</font>';    }  }}</script></head><body onload="GetServerData()">    <table border="1" cellspacing="0" cellpadding="0" id="table113">      <tr>        <td bgcolor="#EE4500">          <p align="center"><b><font face="Arial" size="2" color="#000000">KRG-rFactor-Server</font></b></p>        </td>      </tr>      <tr>        <td bgcolor="#3D3D3D" align="center">          <table border="0" width="100%" id="table139" style="border-collapse: collapse" cellspacing="1">            <tr><td>Event </td><td><b><span id=raceEvent>unknown</span></b></td></tr>            <tr><td>Serie </td><td><b><span id=raceSerie>unknown</span></b></td></tr>            <tr><td>Session </td><td><b><span id=raceSession>unknown</span></b></td></tr>            <tr><td>Player </td><td><b><span id=racePlayer>unknown</span></b></td></tr>            <tr><td colspan="2"> </td></tr>            <tr><td align="center" colspan="2"><b><span id=raceEnter>unknown</span></b></td></tr>          </table>        </td>      </tr>    </table></body></html>

    Unfortunately this doesn't work and I can't find the reason.I tried it with a local copy of the 'RaceCastRSSFeed.xml' and this failed too:

    ...var xmlDoc=new ActiveXObject('Microsoft.XMLDOM');xmlDoc.async='false';xmlDoc.load('RaceCastRSSFeed.xml');	if (xmlDoc.documentElement == null) {...

    After checking the code millions of times and reading every information about this problem I found, I started to focus on the 'RaceCastRSSFeed.xml' itself. Soon the DTD (lines 2 to 4) seemed a little suspicious to me.

    <?xml version="1.0" encoding="utf-8"?><!DOCTYPE RCFEED [<!ENTITY RCFEEDEnt "RaceCast RSS Feed Entity">]><RaceCastRSSFeed>...

    So I cut them out of my local copy

    <?xml version="1.0" encoding="utf-8"?><!-- <!DOCTYPE RCFEED [<!ENTITY RCFEEDEnt "RaceCast RSS Feed Entity">-->]><RaceCastRSSFeed>...

    and - TATA!!!!!! - my code works!!! I loaded only the manipulated XML file up on friends webspace, referenced it in my code and tried it again ... it still worked.Is there a problem with th XMLs DTD???Is this maybe a security problem???I have no influence on the XML file, all I found out by contacting it's author is, that he "believes it to be correct".Any hints and solutions are welcome... :)

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