[Javascript] browser sniffer for css redirect

Golden Troll gtroll at msn.com
Sat Mar 9 15:15:32 CST 2002


If you can do it server side w/ XSSI it's much cleaner (only works with
Apace 1.3-> servers,I think)
If you have questions about XSSI contact me off list.
For JavaScript this is most inclusive sniffer i've found

<!--
// Revised 01 Jan 02 goldentroll.com added navonly to get all Netscape
version before
// version 6 Sample usage  if (is.navonly){code)
//
// Ultimate client-side JavaScript client sniff. Version 3.02
// (C) Netscape Communications 1999.  Permission granted to reuse and
distribute.
// Revised 17 May 99 to add is.nav5up and is.ie5up (see below).
// Revised 21 Nov 00 to add is.gecko and is.ie5_5 Also Changed is.nav5
and is.nav5up to is.nav6 and is.nav6up
// Revised 22 Feb 01 to correct Javascript Detection for IE 5.x, Opera
4,
//                      correct Opera 5 detection
//                      add support for winME and win2k
//                      synch with browser-type-oo.js
// Revised 26 Mar 01 to correct Opera detection
// Everything you always wanted to know about your JavaScript client
// but were afraid to ask ... "Is" is the constructor function for "is"
object,
// which has properties indicating:
// (1) browser vendor:
//     is.nav, is.ie, is.opera, is.hotjava, is.webtv, is.TVNavigator,
is.AOLTV
// (2) browser version number:
//     is.major (integer indicating major version number: 2, 3, 4 ...)
//     is.minor (float   indicating full  version number: 2.02, 3.01,
4.04 ...)
// (3) browser vendor AND major version number
//     is.nav2, is.nav3, is.nav4, is.nav4up, is.nav6, is.nav6up,
is.gecko, is.ie3,
//     is.ie4, is.ie4up, is.ie5, is.ie5up, is.ie5_5, is.ie5_5up,
is.hotjava3, is.hotjava3up
// (4) JavaScript version number:
//     is.js (float indicating full JavaScript version number: 1, 1.1,
1.2 ...)
// (5) OS platform and version:
//     is.win, is.win16, is.win32, is.win31, is.win95, is.winnt,
is.win98, is.winme, is.win2k
//     is.os2
//     is.mac, is.mac68k, is.macppc
//     is.unix
//     is.sun, is.sun4, is.sun5, is.suni86
//     is.irix, is.irix5, is.irix6
//     is.hpux, is.hpux9, is.hpux10
//     is.aix, is.aix1, is.aix2, is.aix3, is.aix4
//     is.linux, is.sco, is.unixware, is.mpras, is.reliant
//     is.dec, is.sinix, is.freebsd, is.bsd
//     is.vms
//
// See http://www.it97.de/JavaScript/JS_tutorial/bstat/navobj.html and
// http://www.it97.de/JavaScript/JS_tutorial/bstat/Browseraol.html
// for detailed lists of userAgent strings.
//
// Note: you don't want your Nav4 or IE4 code to "turn off" or
// stop working when Nav5 and IE5 (or later) are released, so
// in conditional code forks, use is.nav4up ("Nav4 or greater")
// and is.ie4up ("IE4 or greater") instead of is.nav4 or is.ie4
// to check version in code which you want to work on future
// versions.
function Is ()
{   // convert all characters to lowercase to simplify testing
    var agt=navigator.userAgent.toLowerCase();
    // *** BROWSER VERSION ***
    // Note: On IE5, these return 4, so use is.ie5up to detect IE5.
    this.major = parseInt(navigator.appVersion);
    this.minor = parseFloat(navigator.appVersion);
    // Note: Opera and WebTV spoof Navigator.  We do strict client
detection.
    // If you want to allow spoofing, take out the tests for opera and
webtv.
    this.nav  = ((agt.indexOf('mozilla')!=-1) &&
(agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) &&
(agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) &&
(agt.indexOf('hotjava')==-1));
    this.nav2 = (this.nav && (this.major == 2));
    this.nav3 = (this.nav && (this.major == 3));
    this.nav4 = (this.nav && (this.major == 4));
    this.nav4up = (this.nav && (this.major>= 4));
    this.navonly      = (this.nav && ((agt.indexOf(";nav") != -1) ||
                          (agt.indexOf("; nav") != -1)) );
    this.nav6 = (this.nav && (this.major == 5));
    this.nav6up = (this.nav && (this.major>= 5));
    this.gecko = (agt.indexOf('gecko') != -1);
    this.ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera")
== -1));
    this.ie3    = (this.ie && (this.major < 4));
    this.ie4    = (this.ie && (this.major == 4) && (agt.indexOf("msie
5")==-1) );
    this.ie4up  = (this.ie  && (this.major>= 4));
    this.ie5    = (this.ie && (this.major == 4) && (agt.indexOf("msie
5.0")!=-1) );
    this.ie5_5  = (this.ie && (this.major == 4) && (agt.indexOf("msie
5.5") !=-1));
    this.ie5up  = (this.ie  && !this.ie3 && !this.ie4);
    this.ie5_5up =(this.ie && !this.ie3 && !this.ie4 && !this.ie5);
    // KNOWN BUG: On AOL4, returns false if IE3 is embedded browser
    // or if this is the first browser window opened.  Thus the
    // variables is.aol, is.aol3, and is.aol4 aren't 100% reliable.
    this.aol   = (agt.indexOf("aol") != -1);
    this.aol3  = (this.aol && this.ie3);
    this.aol4  = (this.aol && this.ie4);
    this.aol5  = (agt.indexOf("aol 5") != -1);
    this.aol6  = (agt.indexOf("aol 6") != -1);
    this.opera = (agt.indexOf("opera") != -1);
    this.opera2 = (agt.indexOf("opera 2") != -1 ||
agt.indexOf("opera/2") != -1);
    this.opera3 = (agt.indexOf("opera 3") != -1 ||
agt.indexOf("opera/3") != -1);
    this.opera4 = (agt.indexOf("opera 4") != -1 ||
agt.indexOf("opera/4") != -1);
    this.opera5 = (agt.indexOf("opera 5") != -1 ||
agt.indexOf("opera/5") != -1);
    this.opera5up = (this.opera && !this.opera2 && !this.opera3 &&
!this.opera4);
    this.webtv = (agt.indexOf("webtv") != -1);
    this.TVNavigator = ((agt.indexOf("navio") != -1) ||
(agt.indexOf("navio_aoltv") != -1));
    this.AOLTV = this.TVNavigator;
    this.hotjava = (agt.indexOf("hotjava") != -1);
    this.hotjava3 = (this.hotjava && (this.major == 3));
    this.hotjava3up = (this.hotjava && (this.major>= 3));
    // *** JAVASCRIPT VERSION CHECK ***
    if (this.nav2 || this.ie3) this.js = 1.0;
    else if (this.nav3) this.js = 1.1;
    else if (this.opera5up) this.js = 1.3;
    else if (this.opera) this.js = 1.1;
    else if ((this.nav4 && (this.minor <= 4.05)) || this.ie4) this.js =
1.2;
    else if ((this.nav4 && (this.minor> 4.05)) || this.ie5) this.js =
1.3;
    else if (this.hotjava3up) this.js = 1.4;
    else if (this.nav6 || this.gecko) this.js = 1.5;
    // NOTE: In the future, update this code when newer versions of JS
    // are released. For now, we try to provide some upward
compatibility
    // so that future versions of Nav and IE will show they are at
    // *least* JS 1.x capable. Always check for JS version compatibility
    // with> or>=.
    else if (this.nav6up) this.js = 1.5;
    // note ie5up on mac is 1.4
    else if (this.ie5up) this.js = 1.3
    // HACK: no idea for other browsers; always check for JS version
with> or>=
    else this.js = 0.0;
    // *** PLATFORM ***
    this.win   = ( (agt.indexOf("win")!=-1) ||
(agt.indexOf("16bit")!=-1) );
    // NOTE: On Opera 3.0, the userAgent string includes "Windows
95/NT4" on all
    //        Win32, so you can't distinguish between Win95 and WinNT.
    this.win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows
95")!=-1));
    // is this a 16 bit compiled version?
    this.win16 = ((agt.indexOf("win16")!=-1) ||
               (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows
3.1")!=-1) ||
               (agt.indexOf("windows 16-bit")!=-1) );
    this.win31 = ((agt.indexOf("windows 3.1")!=-1) ||
(agt.indexOf("win16")!=-1) ||
                    (agt.indexOf("windows 16-bit")!=-1));
    // NOTE: Reliable detection of Win98 may not be possible. It appears
that:
    //       - On Nav 4.x and before you'll get plain "Windows" in
userAgent.
    //       - On Mercury client, the 32-bit version will return
"Win98", but
    //         the 16-bit version running on Win98 will still return
"Win95".
    this.win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows
98")!=-1));
    this.winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows
nt")!=-1));
    this.win32 = (this.win95 || this.winnt || this.win98 ||
                    ((this.major>= 4) && (navigator.platform ==
"Win32")) ||
                    (agt.indexOf("win32")!=-1) ||
(agt.indexOf("32bit")!=-1));
    this.winme = ((agt.indexOf("win 9x 4.90")!=-1));
    this.win2k = ((agt.indexOf("windows nt 5.0")!=-1));
    this.os2   = ((agt.indexOf("os/2")!=-1) ||
                    (navigator.appVersion.indexOf("OS/2")!=-1) ||
                    (agt.indexOf("ibm-webexplorer")!=-1));
    this.mac    = (agt.indexOf("mac")!=-1);
    // hack ie5 js version for mac
    if (this.mac && this.ie5up) this.js = 1.4;
    this.mac68k = (this.mac && ((agt.indexOf("68k")!=-1) ||
                               (agt.indexOf("68000")!=-1)));
    this.macppc = (this.mac && ((agt.indexOf("ppc")!=-1) ||
                                (agt.indexOf("powerpc")!=-1)));
    this.sun   = (agt.indexOf("sunos")!=-1);
    this.sun4  = (agt.indexOf("sunos 4")!=-1);
    this.sun5  = (agt.indexOf("sunos 5")!=-1);
    this.suni86= (this.sun && (agt.indexOf("i86")!=-1));
    this.irix  = (agt.indexOf("irix") !=-1);    // SGI
    this.irix5 = (agt.indexOf("irix 5") !=-1);
    this.irix6 = ((agt.indexOf("irix 6") !=-1) || (agt.indexOf("irix6")
!=-1));
    this.hpux  = (agt.indexOf("hp-ux")!=-1);
    this.hpux9 = (this.hpux && (agt.indexOf("09.")!=-1));
    this.hpux10= (this.hpux && (agt.indexOf("10.")!=-1));
    this.aix   = (agt.indexOf("aix") !=-1);      // IBM
    this.aix1  = (agt.indexOf("aix 1") !=-1);
    this.aix2  = (agt.indexOf("aix 2") !=-1);
    this.aix3  = (agt.indexOf("aix 3") !=-1);
    this.aix4  = (agt.indexOf("aix 4") !=-1);
    this.linux = (agt.indexOf("inux")!=-1);
    this.sco   = (agt.indexOf("sco")!=-1) ||
(agt.indexOf("unix_sv")!=-1);
    this.unixware = (agt.indexOf("unix_system_v")!=-1);
    this.mpras    = (agt.indexOf("ncr")!=-1);
    this.reliant  = (agt.indexOf("reliantunix")!=-1);
    this.dec   = ((agt.indexOf("dec")!=-1) || (agt.indexOf("osf1")!=-1)
||
                  (agt.indexOf("dec_alpha")!=-1) ||
(agt.indexOf("alphaserver")!=-1) ||
                  (agt.indexOf("ultrix")!=-1) ||
(agt.indexOf("alphastation")!=-1));
    this.sinix = (agt.indexOf("sinix")!=-1);
    this.freebsd = (agt.indexOf("freebsd")!=-1);
    this.bsd = (agt.indexOf("bsd")!=-1);
    this.unix  = ((agt.indexOf("x11")!=-1) || this.sun || this.irix ||
this.hpux ||
                 this.sco ||this.unixware || this.mpras || this.reliant
||
                 this.dec || this.sinix || this.aix || this.linux ||
this.bsd || this.freebsd);
    this.vms   = ((agt.indexOf("vax")!=-1) ||
(agt.indexOf("openvms")!=-1));
}
var isIE3Mac = false;
// this section is designed specifically for IE3 for the Mac
if ((navigator.appVersion.indexOf("Mac")!=-1) &&
(navigator.userAgent.indexOf("MSIE")!=-1) &&
(parseInt(navigator.appVersion)==3))
       isIE3Mac = true;
else   is = new Is();
-->
Peace and Respects,
Scott Gahres
Owner
Golden Troll four20 Ventures P.O. Box 16268 Portland OR 97292
hemp at goldentroll.com  http://goldentroll.com
* hemp info send e-mail w/ subscribe in subject and your
nickname and e-mail in the body
*(c)2002 4:20 has been a trademark of Golden Troll since 1994
IM Us!

AOL GoldenTrollHelp
MSN gtroll at msn.com
Yahoo! live_customer_help

-----Original Message-----
From: javascript-admin at LaTech.edu [mailto:javascript-admin at LaTech.edu]On
Behalf Of Dave
Sent: Saturday, March 09, 2002 10:26 AM
To: javascript at LaTech.edu
Subject: [Javascript] browser sniffer for css redirect


Does anybody have a javascript that checks for and redirects stylesheets
and or urls that works with the browsers from 3x to current on NN and
IE? Or could point me to one? I have been searching but haven't found
the golden egg yet :)
Thanks,
Dave

_______________________________________________
Javascript mailing list
Javascript at LaTech.edu
https://lists.LaTech.edu/mailman/listinfo/javascript




More information about the Javascript mailing list