mirrors/TiddlyWiki5
1
0
Fork 0
mirror of https://github.com/Jermolene/TiddlyWiki5 synced 2025-12-08 17:58:05 +00:00
Code Issues Releases Wiki Activity

Added error checking and tests for evaluated parameters

Browse Source
This commit is contained in:
Jeremy Ruston
2011-12-21 17:21:28 +00:00
parent 4c11503bae
commit 629a5b12da
8 changed files with 26 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
js/ArgParser.js
View File

@@ -26,7 +26,7 @@ Options and their defaults are:
/*jslint node: true */
"use strict";
var Sandbox = require("./Sandbox.js").Sandbox;
var sandbox = require("./Sandbox.js").sandbox;
var ArgParser = function(argString,options) {
var parseToken = function(match,p) {
@@ -38,7 +38,7 @@ var ArgParser = function(argString,options) {
} else if(match[p+2]) { // Double-square-bracket quoted
n = match[p+2];
} else if(match[p+3]) { // Double-brace quoted
n = options.allowEval === false ? match[p+3] : Sandbox(match[p+3],options.globals);
n = options.allowEval === false ? match[p+3] : sandbox(match[p+3],options.globals);
} else if(match[p+4]) { // Unquoted
n = match[p+4];
} else if(match[p+5]) { // empty quote

20
js/Sandbox.js
View File

@@ -6,16 +6,12 @@ Execute a fragment of JavaScript in a sandbox
\*/
(function(){
/*jslint node: true */
/*jslint evil: true, node: true */
"use strict";
var uglify = require("uglify-js");
var safeEval = function(e) {
return eval(e);
};
var Sandbox = function(code,globals) {
var sandbox = function(code,globals) {
var globalNames = [],
globalValues = [],
collectGlobals = function(globals) {
@@ -34,7 +30,7 @@ var Sandbox = function(code,globals) {
});
// Compose the code
var out = [];
out.push("(function(")
out.push("(function(");
out.push(globalNames.join(","));
out.push(") { return ");
out.push(code);
@@ -45,9 +41,15 @@ var Sandbox = function(code,globals) {
// Recompile the code
var compiledCode = uglify.uglify.gen_code(tree);
// Execute it
return eval(compiledCode).apply(null,globalValues);
var result;
try {
result = eval(compiledCode).apply(null,globalValues);
} catch(err) {
result = "{{** Evaluation error: " + err + " **}}";
}
return result;
};
exports.Sandbox = Sandbox;
exports.sandbox = sandbox;
})();