"""
    IncludeExternalFile macro

    by Albert Ma  http://www.ieasy.org

"""
from MoinMoin import config, version
import string


#DESCRIPTION: Outputs the external file's content . [[IncludeExternalFile(externalfilename)]].Notice,please set config IncludeExternalFileRoot parameter for security reason

def execute(macro, args):

    if string.find(args,"..")!= -1:
        return "Invalid argument"
    try:    
            f=open(config.IncludeExternalFileRoot+"/"+args,"r")
    except IOError:
            result="can not open "+config.includefile_root+args
    else:   
            result=f.read()
            f.close()
    return result or " "