Need Help With REFind

[Guest]

I have a form filed and need to make sure that there is not URL's being passed through it.  I would like to search the field and test it for "http" and/or "www", if those charters are present I would like to send it to a special page that handels it and then abort the rest of the script.

Can anyone help me with this?

Thanks!

Nick

[BreakawayPaul · Accepted solution]

See if this helps.  It's from my regex cheat sheet.

<cfset regex = "^(http://|www)[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(/\S*)?$" />

Then :

#refind(regex,"your_string")#

Should return 1 if there's a match, or 0 if there isn't.

[Guest]

Paul,

You were spot on with your post, I can't thank you enough for your help!

Have the code in place and it is working like a charm.

Nick

[Guest]

Paul,

After a bit more testing I noticed that your regex was not working.  I had to use the following code to getthe script to work:

<cfset stringToSearch = '#form.xxx#'>

(Notice, I had to use single quotes instead of double quotes, the double quotes were killing me!)

<p>

<cfset foundit = '#FindNoCase("http",stringToSearch)#'>

<cfif foundit gt 0>

        <cflocation url="http://www.xxx.com">

        <cfabort>

</cfif>

Had to use:

#refind("http","your_string")#

Instead of:

#refind(regex,"your_string")#

Have no idea about Regular Expressions, wish I understood what your code is doing so that I could work on it to get it to work but all I know is that the script works this way and I will take it!  🙂

Thanks again for your help!

Nick

[BreakawayPaul]

Hi Nick,

Do you have an example case that it doesn't match?  You asked for one that would find a URL starting with either http:// or www.  If you only need it to find ones starting with http://, then that's a simpler regex.

[Guest]

Paul,

I wanted to use your code but when I uesed #refind(regex,"your_string")# and tested it it did not catch any of the test data that I used.  I used the following code and it worked with all of the test data:

<cfset foundit = '#FindNoCase("http",stringToSearch)#'>

<cfif foundit gt 0>

        <cflocation url="http://www.xxx.com">

        <cfabort>

</cfif>

It should not matter that I used FindNoCase instead of ReFind?

If I used the following do you think it should have worked?

<cfset foundit = '#FindNoCase(regex,stringToSearch)#'>

<cfif foundit gt 0>

        <cflocation url="http://www.xxx.com">

        <cfabort>

</cfif>

I liked you code because it also tested for www and that would have been good to test for!

Thanks for all your help!

Nick

[BreakawayPaul]

Tweaked the regex.  It should find a url with or without the http://

<cfset regex = "^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$" />

<cfset my_search_string = "http://forums.adobe.com/">

<cfset foundit =refind(regex,my_search_string>

<cfif foundit gt 0>

        <cflocation url="http://www.xxx.com">

        <cfabort>

</cfif>

If you are passing a variable as the second argument in refind(), leave the quotes out.  If it's a string, then it needs to be quoted.

[Guest]

Paul,

I will work on it tomorrow and get back to you.

Thanks again!

Nick