Re: [CFCDev] Making sure is not called out of sequence

[JerryEla]

I wrote code to to exactly that for custom tags in CF4.5.  I haven't 
tested it in MX so it may need a few tweaks, but should do what you want.
GetFQCallStack.cfm returns the fully qualified call stack at the point 
where it is called.
ValildCaller.cfm uses GetFQCallStack.cfm to figure out how the current 
template was called and throws an error if it was called directly or by 
a template whose filename and directory don't match the passed regular 
expression.

Bryan F. Hogan wrote:

Does anyone know if it is possible to make sure that a CFC is not called
directly and that can only be called from a certain CFC when the CFC
that shouldn't be called is in a sub-directory of the CFC that should be
the only caller?
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	caller = callstack[3];
	callee = callstack[2];
	callingFile = GetFileFromPath(caller);
	callingDir = GetDirectoryFromPath(caller);
	valid = REFind(attributes.pathRE, callingDir) and REFind(attributes.templateRE, callingFile);


	

    



  

 
  
  
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				tagcontext = CFcatch.tagcontext;
			
		
	

	
	
		tagcontext = attributes.tagcontext;
	


	contextLen = ArrayLen(tagcontext);
	current = "";
	callStack = ArrayNew(1);
	for (i = contextLen; i gte 1; i = i - 1)
  { if (tagcontext[i].template neq current)
    { //the tag context can have multiple entries per template 
			//we only want the unique entries 
			//so we skip the repeats
			current = tagcontext[i].template;
			//for consistancy make all file paths use forward slashes
			ArrayAppend(callStack, Replace(current, "\", "/", "ALL"));
    }
  }
	if (not isDefined("attributes.tagcontext"))
  {	//if no tag context was passed in then the first template on the callStack is
		//GetFQCallStack which we don't want so we get rid of it.
		ArrayDeleteAt(callStack, 1);
  }
	"#attributes.returnVarScope#.#attributes.returnVar#" = callStack;