getAuthUsername()
Last updated October 9, 2006
Version: 1 | Requires: ColdFusion 5 | Library: SecurityLib
Description:
Users have various ways of specifying their username when logging onto a network. The formats can be: username@some.domain, domain\username, or even just username. This function returns the username portion of the cgi.auth_user or cgi.remote_user variables. If neither cgi variable contains a value, an empty string is returned.
Return Values:
Returns a string.
Example:
#getAuthUsername()#
</cfoutput>
Parameters:
No arguments.
Full UDF Source:
<!---
Get the authenticated username from the cgi.auth_user or cgi.remote_user without the domain information.
@return Returns a string.
@author Mike Tangorre (mtangorre@gmail.com)
@version 1, April 9, 2007
--->
<cffunction name="getAuthUsername" returntype="string" output="false">
<cfset var username = "" />
<cfif len(trim(cgi.auth_user))>
<cfset username = trim(cgi.auth_user) />
<cfelseif len(trim(cgi.remote_user))>
<cfset username = trim(cgi.remote_user) />
<cfelse>
<!--- no string to work with --->
<cfreturn trim(username) />
</cfif>
<!--- check username@some.domain --->
<cfif find("@",username)>
<cfreturn listFirst(username,"@") />
<!--- check domain\username --->
<cfelseif find("\",username)>
<cfreturn listLast(username,"\") />
<!--- no domain --->
<cfelse>
<cfreturn trim(username) />
</cfif>
</cffunction>
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