Curious Cat Code - Free Cut and Paste Code - Error Trapping ColdFusion Applications

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Purpose: Catch error messages generated by Cold Fusion server and
1) Notify the Web Developer of the error, and
2) Give the web site visitor a nicer page than the standard error page.
Code: CFML, HTML

In this simple example we will use 3 files. To catch the error place the following code in the application.cfm file.
<CFAPPLICATION NAME="errortrap" CLIENTMANAGEMENT="Yes" SESSIONMANAGEMENT="Yes"> <CFSET application.home = "http://www.curiouscat.com/"> <CFSET application.home2 = "http://curiouscat.com/"> <CFSET application.CFDeveloper = "julie@curiouscat.xyz"> <CFOUTPUT><CFIF cgi.referer is not "#application.home#error/catcherror.cfm" or "#application.home2#error/catcherror.cfm" or "#application.home#error/errormessage.cfm" or "#application.home2#error/errormessage.cfm"> <CFERROR TYPE="Request" TEMPLATE="/error/catcherror.cfm" MAILTO="#application.CFDeveloper#"> </CFIF></CFOUTPUT>
Then add the catcherror.cfm template (code below) to an error directory. This file with submit the error parameters and values to the errormessage.cfm template.
<HTML> <HEAD><TITLE>Errors</TITLE></HEAD> <BODY onLoad="document.Errors.submit()"> <DIV ALIGN="center"><FONT SIZE="+1">An error has occurred</FONT></DIV> Please wait while the webmaster is notified of the error so that we can make any changes needed to prevent others from experiencing this error. <P> <FORM ACTION="/error/errormessage.cfm" METHOD="POST" Name="Errors"> <INPUT TYPE="Hidden" NAME="ErrorDate" VALUE="#Error.DateTime#"> <INPUT TYPE="Hidden" NAME="Browser" VALUE="#Error.Browser#"> <INPUT TYPE="Hidden" NAME="RemoteAddress" VALUE="#Error.RemoteAddress#"> <INPUT TYPE="Hidden" NAME="Referer" VALUE="#Error.HTTPReferer#"> <INPUT TYPE="Hidden" NAME="Template" VALUE="#Error.Template#"> <INPUT TYPE="Hidden" NAME="QueryString" VALUE="#Error.QueryString#"> <INPUT TYPE="Hidden" NAME="Mailto" VALUE="#Error.Mailto#"> <INPUT TYPE="Hidden" NAME="Diagnostics" VALUE="#Error.Diagnostics#"> </FORM> </BODY></HTML>

Finally add the errormessage.cfm template to the error directory.

<HTML> <HEAD><TITLE>Error Message</TITLE></HEAD> <BODY> <CFMAIL FROM="#application.CFDeveloper#" TO="#application.CFDeveloper#" SUBJECT="Web Site Error"> Error Details: Date: #Form.ErrorDate# Browser: #Form.Browser# Remote Address: #Form.RemoteAddress# Referer: #Form.Referer# Template: #Form.Template# Query: #Form.QueryString# Diagnostics: #Form.Diagnostics# </CFMAIL> An error has occurred. The error information has been forwarded to the webmaster so we can make any changes necessary to prevent future users from experiencing the error. <P> <CFOUTPUT><a href="#application.home#">To home page</a></CFOUTPUT>. <P> </BODY> </HTML>

We hope this is helpful. More Curious Cat Code.