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Commit 12239458 authored by Tim Schumacher's avatar Tim Schumacher Committed by Julian Xhokaxhiu
Browse files

Abort commandExists early if shell_exec is disabled 

This function causes an Error 500 on some shared webspaces
if they have the shell_exec functionality disabled. Check
for this case before trying to run a shell command.
parent b819f546

src/Helpers/Build.php

+12 −0
Original line number Diff line number Diff line
@@ -326,7 +326,19 @@ 
         * @return boolean Return True if available, False if not

         */

        private function commandExists($cmd){

            if (!$this->functionEnabled('shell_exec'))

                return false;



            $returnVal = shell_exec("which $cmd");

            return (empty($returnVal) ? false : true);

        }



        /**

         * Checks if a php function is available on the server

         * @param string $func The function to check for

         * @return boolean true if the function is enabled, false if not

         */

        private function functionEnabled($func) {

            return is_callable($func) && false === stripos(ini_get('disable_functions'), $func);

        }

    }