browserDetect()
Last updated September 30, 2005
Version: 1 | Requires: ColdFusion 5 | Library: UtilityLib
Description:
Detects what browser the user is using and version number. If the HTTP_USER_AGENT is stripped by a firewall or unknown (edited) Agent ID string, an "Unknown" is returned.
Return Values:
Returns a string.
Example:
#BrowserDetect()#
</CFOUTPUT>
Parameters:
No arguments.
Full UDF Source:
<cfscript>
/**
* Detects 40+ browsers.
*
* @return Returns a string.
* @author John Bartlett (jbartlett@strangejourney.net)
* @version 1, September 30, 2005
*/
function browserDetect() {
var loc=0;
var i=0;
var b=0;
var tmp="";
var browserList="";
var currBrowser="";
// Avant Browser (Not all Avant browsers contain "Avant" in the string)
loc=findNoCase("Avant",CGI.HTTP_USER_AGENT);
if(loc GT 0) {
loc=listFindNoCase(CGI.HTTP_USER_AGENT,"MSIE"," ");
if(loc GT 0) {
tmp=listGetAt(CGI.HTTP_USER_AGENT,loc + 1," ");
return "Avant " & left(tmp,len(tmp) - 1);
}
}
// PocketPC
if(findNoCase("Windows CE",CGI.HTTP_USER_AGENT)) return "PocketPC";
// Misc (browser x.x)
browserList="Acorn Browse,Check&Get,iCab,Netsurf,Opera,Oregano,SIS";
for (b=1; b lte listLen(BrowserList); b=b+1) {
currBrowser=listGetAt(browserList,b);
loc=listFindNoCase(CGI.HTTP_USER_AGENT,currBrowser," ");
if(loc GT 0) return currBrowser & " " & listGetAt(CGI.HTTP_USER_AGENT,loc + 1," ");
}
// Misc (browser/x.x)
BrowserList="Amaya,AmigaVoyager,Amiga-AWeb,Camino,Chimera,Contiki,cURL,Dillo,DocZilla,edbrowse,Emacs-W3,Epiphany,Firefox,IBrowse,iCab,K-Meleon,Konqueror,Lynx,Mosaic,NetPositive,Netscape,OmniWeb,Opera,Safari,SWB,Sylera,W3CLineMode,w3m,WebTV";
for (b=1; b LTE ListLen(BrowserList); b=b+1) {
currBrowser=listGetAt(browserList,b);
loc=findNoCase(currBrowser,CGI.HTTP_USER_AGENT);
if(loc GT 0) {
// Locate Browser version in string
for(i=1;i lte listLen(CGI.HTTP_USER_AGENT," ");i=i+1) {
if(lCase(left(listGetAt(CGI.HTTP_USER_AGENT,i," "),len(currBrowser) + 1)) eq "#CurrBrowser#/") return currBrowser & " " & listLast(listGetAt(CGI.HTTP_USER_AGENT,i," "),"/");
}
}
}
// Misc (browser, no version)
browserList="BrowseX,ELinks,Links,OffByOne,BlackBerry";
for(b=1; b lte listLen(BrowserList); b=b+1) {
currBrowser=listGetAt(browserList,b);
if(findNoCase(currBrowser,CGI.HTTP_USER_AGENT) gt 0) return currBrowser;
}
// Mozila (must be done after Firefox, Netscape, and other Mozila clones)
loc=findNoCase("Gecko",CGI.HTTP_USER_AGENT);
if(loc GT 0) {
// Locate revision number in string
for(i=1;i lte listLen(CGI.HTTP_USER_AGENT," ");i=i+1) {
if(lCase(left(listGetAt(CGI.HTTP_USER_AGENT,i," "),3)) eq "rv:") return "Mozilla " & val(listLast(ListGetAt(CGI.HTTP_USER_AGENT,i," "),":"));
}
}
// IE (Must be last due to other browsers "spoofing" it.
loc=listFindNoCase(CGI.HTTP_USER_AGENT,"MSIE"," ");
if(Loc GT 0) {
tmp=listGetAt(CGI.HTTP_USER_AGENT,loc + 1," ");
return "MSIE " & left(tmp,len(tmp) - 1);
}
// Unable to detect browser
return "Unknown";
}
</cfscript>
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