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Asked: 2026-05-23T04:06:23+00:00

Is there something built into Coldfusion that would let me know the browser and

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Is there something built into Coldfusion that would let me know the browser and version number surfing my site? Are there existant libraries that would enable me to do this?

My google-fu hasn’t shown many things other than simple if statements detecting IE.

I did do a dump of the cgi.http_user_agent variable in Chrome:

Mozilla/5.0 (Windows NT 5.1) AppleWebKit/534.24 (KHTML, like Gecko) Chrome/11.0.696.77 Safari/534.24

There’s three different browsers mentionned in there! Doing an if statement looking for either would return true. There’s got to be a more formal approach?

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1 Answer

  1. Editorial Team

    There is a User-Defined Function which can parse out the user_agent string.

    browserDetect

    <cfscript>
/**
 * Detects 130+ browsers.
 * v2 by Daniel Harvey, adds Flock/Chrome and Safari fix.
 * 
 * @param UserAgent      User agent string to parse. Defaults to cgi.http_user_agent. (Optional)
 * @return Returns a string. 
 * @author John Bartlett (jbartlett@strangejourney.net) 
 * @version 4, June 28, 2009 
 */
function browserDetect() {

// Default User Agent to the CGI browser string
var UserAgent=CGI.HTTP_USER_AGENT;

// Regex to parse out version numbers
var VerNo="/?v?_? ?v?[\(?]?([A-Z0-9]*\.){0,9}[A-Z0-9\-.]*(?=[^A-Z0-9])";

// List of browser names
var BrowserList="";

// Identified browser info
var BrowserName="";
var BrowserVer="";

// Working variables
var Browser="";
var tmp="";
var tmp2="";
var x=0;


// If a value was passed to the function, use it as the User Agent
if (ArrayLen(Arguments) EQ 1) UserAgent=Arguments[1];

// Allow regex to match on EOL and instring
UserAgent=UserAgent & " ";

// Browser List (Allows regex - see BlackBerry for example)
BrowserList="1X|Amaya|Ubuntu APT-HTTP|AmigaVoyager|Android|Arachne|Amiga-AWeb|Arora|Bison|Bluefish|Browsex|Camino|Check&Get|Chimera|Chrome|Contiki|cURL|Democracy|" &
            "Dillo|DocZilla|edbrowse|ELinks|Emacs-W3|Epiphany|Galeon|Minefield|Firebird|Phoenix|Flock|IceApe|IceWeasel|IceCat|Gnuzilla|" &
            "Google|Google-Sitemaps|HTTPClient|HP Web PrintSmart|IBrowse|iCab|ICE Browser|Kazehakase|KKman|K-Meleon|Konqueror|Links|Lobo|Lynx|Mosaic|SeaMonkey|" &
            "muCommander|NetPositive|Navigator|NetSurf|OmniWeb|Acorn Browse|Oregano|Prism|retawq|Shiira Safari|Shiretoko|Sleipnir|Songbird|Strata|Sylera|" &
            "ThunderBrowse|W3CLineMode|WebCapture|WebTV|w3m|Wget|Xenu_Link_Sleuth|Oregano|xChaos_Arachne|WDG_Validator|W3C_Validator|" &
            "Jigsaw|PLAYSTATION 3|PlayStation Portable|IPD|" &
            "AvantGo|DoCoMo|UP.Browser|Vodafone|J-PHONE|PDXGW|ASTEL|EudoraWeb|Minimo|PLink|NetFront|Xiino|";
            // Mobile strings
            BrowserList=BrowserList & "iPhone|Vodafone|J-PHONE|DDIPocket|EudoraWeb|Minimo|PLink|Plucker|NetFront|PIE|Xiino|" &
            "Opera Mini|IEMobile|portalmmm|OpVer|MobileExplorer|Blazer|MobileExplorer|Opera Mobi|BlackBerry\d*[A-Za-z]?|" &
            "PPC|PalmOS|Smartphone|Netscape|Opera|Safari|Firefox|MSIE|HP iPAQ|LGE|MOT-[A-Z0-9\-]*|Nokia|";

            // No browser version given
            BrowserList=BrowserList & "AlphaServer|Charon|Fetch|Hv3|IIgs|Mothra|Netmath|OffByOne|pango-text|Avant Browser|midori|Smart Bro|Swiftfox";

            // Identify browser and version
Browser=REMatchNoCase("(#BrowserList#)/?#VerNo#",UserAgent);

if (ArrayLen(Browser) GT 0) {

    if (ArrayLen(Browser) GT 1) {

        // If multiple browsers detected, delete the common "spoofed" browsers
        if (Browser[1] EQ "MSIE 6.0" AND Browser[2] EQ "MSIE 7.0") ArrayDeleteAt(Browser,1);
        if (Browser[1] EQ "MSIE 7.0" AND Browser[2] EQ "MSIE 6.0") ArrayDeleteAt(Browser,2);
        tmp2=Browser[ArrayLen(Browser)];

        for (x=ArrayLen(Browser); x GTE 1; x=x-1) {
            tmp=Rematchnocase("[A-Za-z0-9.]*",Browser[x]);
            if (ListFindNoCase("Navigator,Netscape,Opera,Safari,Firefox,MSIE,PalmOS,PPC",tmp[1]) GT 0) ArrayDeleteAt(Browser,x);
        }

        if (ArrayLen(Browser) EQ 0) Browser[1]=tmp2;
    }

    // Seperate out browser name and version number
    tmp=Rematchnocase("[A-Za-z0-9. _\-&]*",Browser[1]);

    Browser=tmp[1];

    if (ArrayLen(tmp) EQ 2) BrowserVer=tmp[2];

    // Handle "Version" in browser string
    tmp=REMatchNoCase("Version/?#VerNo#",UserAgent);

    if (ArrayLen(tmp) EQ 1) {
        tmp=Rematchnocase("[A-Za-z0-9.]*",tmp[1]);
        BrowserVer=tmp[2];
    }

    // Handle multiple BlackBerry browser strings
    if (Left(Browser,10) EQ "BlackBerry") Browser="BlackBerry";

    // Return result
    return Browser & " " & BrowserVer;

}

// Unable to identify browser
return "Unknown";

}
</cfscript>
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