[pmwiki-users] Check for unsafe browser?

H. Fox haganfox at gmail.com
Sat May 14 04:15:00 CDT 2005


You should also consider checking for Firefox <= 1.0.3 and Mozilla
Suite <= 1.7.7.
http://www.mozilla.org/projects/security/known-vulnerabilities.html

Some links of interest:
http://extensionroom.mozdev.org/more-info/useragentswitcher
http://chrispederick.com/work/firefox/useragentswitcher/

Hagan

On 5/13/05, Patrick R. Michaud <pmichaud at pobox.com> wrote:
> On Sat, May 14, 2005 at 08:13:47AM +0200, chr at home.se wrote:
> >
> > Does anyone know how I could check if the user is using an unsecure
> > browser (i.e. IE)?  If they are doing that, I'd like to place a banner at
> > the top of the page pointing them to some alternatives.  (This is
> > primarily for an internal work wiki - less IE => less spyware etc)
> 
> Normally one either checks the $_SERVER['HTTP_USER_AGENT'] string
> or uses JavaScript to detect an IE browser.  You'd have to search
> the web for appropriate user agent strings -- unfortunately nearly
> all browsers try to masquerade as a different browser.  For example,
> IE 6.0 on my XP box identifies itself as
> 
>     Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
> 
> I seem to recall seeing somewhere that the presence of "MSIE" in
> the user agent string was a pretty good indication of an IE browser.
> 
> Pm




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