fixed bug, needed env var "ERRPAGE_JSON_PATH" to make test work

Author: jxmot

errpages/httperror.php

@@ -100,7 +100,7 @@ function isLive() {
 define('ERROR_CODE', 1);
 define('EXPLANATION', 2);
 
-$errorcodes  = json_decode(file_get_contents('./errpages/httperror.json'), true);
+$errorcodes  = json_decode(file_get_contents(getenv('ERRPAGE_JSON_PATH') . 'httperror.json'), true);
 
 if(@$errorcodes["{$http_status}"]) {
     $error_code  = $errorcodes["{$http_status}"][ERROR_CODE];

testhttperror.php

@@ -2,11 +2,17 @@
 // this script is for testing ./errpages/httperror.php, just 
 // change the code below
 $testcode = 401;
+// NOTE: The version of httperror.php that uses a JSON file 
+// for error code content does not use this. Typically this 
+// was used only for 404 errors.
+$_SERVER['REQUEST_URI'] = '/bad_path/no_resource';
 // this just proves we can overwrite $_SERVER
 $_SERVER['HTTPS'] = 'on';
 $_SERVER['SERVER_PORT'] = 443;
 // get the code to httperror.php...
 putenv("REDIRECT_STATUS={$testcode}");
 // test!
+putenv("ERRPAGE_JSON_PATH=./errpages/");
 require_once './errpages/httperror.php';
+//require_once './errpages/_test.php';
 ?>