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Help Detecting Real Player in a Browser

Posted on 2006-04-12
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Last Modified: 2013-11-18
I found a handy little script that performs plugin detection within IE and Netscape.  It seems simple enough but I cannot get it to work.  It just doesn't return anything.

The script can be found here:

http://www.javascriptkit.com/script/script2/plugindetect.shtml

The page I included it on for testing purposes can be found here:

http://www.wbspenguins.com/video/detect.asp

The plugin.js file is located:

http://www.wbspenguins.com/video/plugins.js


Any help is appreciated as I am sure its a two minute fix for the more knowledgeable

Ken
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Question by:Supertacks
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Expert Comment

by:pashik
Comment Utility
Hi.
better take this script:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title> New Document </title>
</head>
<script language="JavaScript">
/*
Plugin Detector()

Source: Webmonkey Code Library
(http://www.hotwired.com/webmonkey/javascript/code_library/)
Author: Nadav Savio
Author Email: webmonkey@giantant.com
*/
// this is where we write out the VBScript for MSIE Windows
var WM_startTagFix = '</';
var msie_windows = 0;
if ((navigator.userAgent.indexOf('MSIE') != -1) && (navigator.userAgent.indexOf('Win') != -1)){
  msie_windows = 1;
  document.writeln('<script language="VBscript">');
  document.writeln('\'This will scan for plugins for all versions of Internet Explorer that have a VBscript engine version 2 or greater.');
  document.writeln('\'This includes all versions of IE4 and beyond and some versions of IE 3.');
  document.writeln('Dim WM_detect_through_vb');
  document.writeln('WM_detect_through_vb = 0');
  document.writeln('If ScriptEngineMajorVersion >= 2 then');
  document.writeln('  WM_detect_through_vb = 1');
  document.writeln('End If');
  document.writeln('Function WM_activeXDetect(activeXname)');
  document.writeln('  on error resume next');
  document.writeln('  If ScriptEngineMajorVersion >= 2 then');
  document.writeln('     WM_activeXDetect = False');
  document.writeln('     WM_activeXDetect = IsObject(CreateObject(activeXname))');
  document.writeln('     If (err) then');
  document.writeln('        WM_activeXDetect = False');
  document.writeln('     End If');
  document.writeln('   Else');
  document.writeln('     WM_activeXDetect = False');
  document.writeln('   End If');
  document.writeln('End Function');
  document.writeln(WM_startTagFix+'script>');
}

function WM_pluginDetect(plugindescription, pluginxtension, pluginmime, activeXname){
  //This script block will test all user agents that have a real plug-in array
  //(i.e. Netscape) and set the variables, otherwise it directs the routine
  // to WM_activeXDetect to detect the activeX control.
  // First define some variables
  var i,plugin_undetectable=0,detected=0, daPlugin=new Object();
  // Then we check to see if it's an MSIE browser that you can actually
  // check for the plugin in question.
  if (msie_windows && WM_detect_through_vb){
      plugin_undetectable = 0;
  } else {
      plugin_undetectable = 1;
  }
  // If it has a real plugins or mimetypes array, we look there for the plugin first
  if(navigator.plugins) {
      numPlugins = navigator.plugins.length;
      if (numPlugins > 1) {
        if (navigator.mimeTypes && navigator.mimeTypes[pluginmime] && navigator.mimeTypes[pluginmime].enabledPlugin && (navigator.mimeTypes[pluginmime].suffixes.indexOf(pluginxtension) != -1)) { // seems like we have it, let's just make sure and check the version (if specified)
            if ((navigator.appName == 'Netscape') && (navigator.appVersion.indexOf('4.0') != -1)) { // stupid, stupid Netscape can't handle the references to navigator.plugins by number, sooo...
              for(i in navigator.plugins) {
                  if ((navigator.plugins[i].description.indexOf(plugindescription) != -1) || (i.indexOf(plugindescription) != -1)) { // some versions of quicktime have no description. feh!
                    detected=1;
                    break;
                  }
              }
            } else {
              for (i = 0; i < numPlugins; i++) {
                  daPlugin = navigator.plugins[i];
                  if ((daPlugin.description.indexOf(plugindescription) != -1) || (daPlugin.name.indexOf(plugindescription) != -1)) {
                    detected=1;
                    break;
                  }
              }
            }
            // Mac weirdness
      if (navigator.mimeTypes[pluginmime] == null) {
              detected = 0;
            }
        }
        return detected;
      } else if((msie_windows == 1) && !plugin_undetectable){
        return WM_activeXDetect(activeXname);
      } else {             
        return 0;
      }
  } else {
      return 0;
  }
}


// this next function just makes it easy to detect the common plugins
function WM_easyDetect(whichPlugin) {
    // this function just makes it easy to do basic plug-in detection without
    // knowing all the mimetypes and activeX names and such
    var isItThere = 0;
    if( (whichPlugin == 'flash') || (whichPlugin == 'Flash') ) {
      isItThere = WM_pluginDetect('Flash', 'swf', 'application/x-shockwave-flash', 'ShockwaveFlash.ShockwaveFlash');
    } else if( (whichPlugin == 'director') || (whichPlugin == 'Director') ) {
      isItThere = WM_pluginDetect('Shockwave', 'dcr', 'application/x-director', 'SWCtl.SWCtl.1');
    } else if( (whichPlugin == 'quicktime') || (whichPlugin == 'Quicktime') || (whichPlugin == 'QuickTime') ) {
      isItThere = WM_pluginDetect('QuickTime', 'mov', 'video/quicktime', '');
    } else if( (whichPlugin == 'realaudio') || (whichPlugin == 'Realaudio') || (whichPlugin == 'RealAudio') ) {
      isItThere = (WM_pluginDetect('RealPlayer', 'rpm', 'audio/x-pn-realaudio-plugin', 'RealPlayer.RealPlayer(tm) ActiveX Control (32-bit)')) || (WM_pluginDetect('RealPlayer', 'rpm', 'audio/x-pn-realaudio-plugin','rmocx.RealPlayer G2 Control')) || (WM_pluginDetect('RealPlayer', 'rpm', 'audio/x-pn-realaudio-plugin','RealPlayer.RealPlayer(tm) ActiveX Control (32-bit)')) || (WM_pluginDetect('RealPlayer', 'rpm', 'audio/x-pn-realaudio-plugin','RealVideo.RealVideo(tm) ActiveX Control (32-bit)'))
    } else {

      alert('You need to tell me which plug-in to look for, like so:\n\n' + '          WM_easyDetect(\'flash\')\n\n' + '          WM_easyDetect(\'director\')\n\n' + '          WM_easyDetect(\'quicktime\')\n\n' + '          WM_easyDetect(\'realaudio\')');
    }
    return isItThere;
}
</script>
<body>

<script language="JavaScript">
if(WM_easyDetect('realaudio')){
  document.write("You have Real");
  }
else{
  document.write("You havn't Real");
  }
</script>
</body>
</html>
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Author Comment

by:Supertacks
Comment Utility
I tried that script but am getting the follwoing error:

Active Server Pages error 'ASP 0138'

Nested Script Block

/video/detect2.asp, line 20

A script block cannot be placed inside another script block.


This is where I start to fall apart when it comes to coding.

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Author Comment

by:Supertacks
Comment Utility
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LVL 2

Accepted Solution

by:
pashik earned 250 total points
Comment Utility
I see.
That script create VBScript (it write script into document) in ASP page.
ASP page also uses VBScript.
so try to replace 20 line with: document.writeln('<script>');
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LVL 2

Expert Comment

by:pashik
Comment Utility
so try to write it in separate js file and include it in ur page with
<script src="mysqcript.js" type="text/javascript"></script>
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