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Convert links for to querystring

Posted on 2010-11-15
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Last Modified: 2012-08-13
I am trying to write a mobile version of a website, but am having problems passign the href tags and staying within my mobile version.

To make this successful, I need to rewrite all the href tags to pass through a querystring, so href=/mylink.asp now goes to href=/m/?r=mylink.asp.  Any URL has to be adjusted.  I tried this in the simple way by just finding any href tag, and adding the query id to it, but this does not account for root relative links vs page relative links.  See code below.  

I am sure I am not the first to try and do this, so any help would be very much appreciated.
<cfoutput>
    <!--- PASSES CURRENT PAGE URL, SET TO ABOUT FOR THIS SAMPLE--->
    <cfset url.r = 'aboutus.cfm'>
    <!---GET CONTENTS OF URL--->
    <cfset tempURL = "http://"&#CGI.SERVER_NAME#&#url.r#>
    <cfhttp url=#tempURL#></cfhttp>
    <cfset tempInfo = #cfhttp.filecontent#>
    
    <cfscript>
    //FIND STRING TO STRIP
    startPos = find('<h1 class', tempInfo);
    endPos = find('contentPrimary -->', tempInfo);
    cutLength = endPos - startPos;
    tempInfo = Mid(tempInfo, startPos, cutLength);
    
    //REPLACE any HREF that does not start with http
    
    //THIS IS WHERE I AM NOT SURE HOW TO PROCEED
    tempInfo = replace(tempInfo, 'href="/', 'href="/m/?r=/', 'all');		//REPLACES ALL HREF TAGS INTO QUERY STRING
	tempInfo = replace(tempInfo, 'href="/m/?r=http', 'href="http', 'all');	//REMOVES WHAT I JUST DID IF URL BEGINS WITH HTTP
    
    //STILL TO SOLVE
    //IF URL IS DOCUMENT RELATIVE
    //IF URL ALREADY CONTAINS A QUERYSTRING (CONVERT EXISTING ? to &)
    
    writeOutput(tempInfo);
	
    </cfscript>
</cfoutput>

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Question by:mopar003
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3 Comments
 

Expert Comment

by:macrem
ID: 34144116
Have you tired ReplaceNoCase() ?
You'll find it is safer when you don't know the incoming case.
CGI.SERVER_NAME generally returns uppercase.

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Accepted Solution

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mopar003 earned 0 total points
ID: 34146788
Found my own solution.  Searching through all href tags on the page, then checking to see if they were root or document relative.
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by:mopar003
ID: 34182414
Alternate solution found
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