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Blacklisting certain globals from REPL rather than whitelisting (fixes #1654)

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Trevor Burnham
2011-09-04 09:54:13 -04:00
parent d1af5163eb
commit 7ba52ae729
2 changed files with 20 additions and 11 deletions
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26
lib/coffee-script/repl.js
View File

@@ -1,5 +1,11 @@
(function() {
var ACCESSOR, CoffeeScript, Module, REPL_PROMPT, REPL_PROMPT_CONTINUATION, SIMPLEVAR, Script, autocomplete, backlog, completeAttribute, completeVariable, enableColours, error, g, getCompletions, inspect, nonContextGlobals, readline, repl, run, sandbox, stdin, stdout, _i, _len;
var ACCESSOR, CoffeeScript, Module, REPL_PROMPT, REPL_PROMPT_CONTINUATION, SIMPLEVAR, Script, autocomplete, backlog, completeAttribute, completeVariable, enableColours, error, excludedGlobals, g, getCompletions, inspect, nonContextGlobals, readline, repl, run, sandbox, stdin, stdout;
var __hasProp = Object.prototype.hasOwnProperty, __indexOf = Array.prototype.indexOf || function(item) {
for (var i = 0, l = this.length; i < l; i++) {
if (__hasProp.call(this, i) && this[i] === item) return i;
}
return -1;
};
CoffeeScript = require('./coffee-script');
readline = require('readline');
inspect = require('util').inspect;
@@ -18,10 +24,10 @@
};
backlog = '';
sandbox = Script.createContext();
excludedGlobals = ['global', 'GLOBAL', 'root'];
nonContextGlobals = ['Buffer', 'console', 'process', 'setInterval', 'clearInterval', 'setTimeout', 'clearTimeout'];
for (_i = 0, _len = nonContextGlobals.length; _i < _len; _i++) {
g = nonContextGlobals[_i];
sandbox[g] = global[g];
for (g in global) {
if (__indexOf.call(excludedGlobals, g) < 0) sandbox[g] = global[g];
}
sandbox.global = sandbox.root = sandbox.GLOBAL = sandbox;
run = function(buffer) {
@@ -80,11 +86,11 @@
if (free != null) {
vars = Script.runInContext('Object.getOwnPropertyNames(this)', sandbox);
keywords = (function() {
var _j, _len2, _ref2, _results;
var _i, _len, _ref2, _results;
_ref2 = CoffeeScript.RESERVED;
_results = [];
for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) {
r = _ref2[_j];
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
r = _ref2[_i];
if (r.slice(0, 2) !== '__') _results.push(r);
}
return _results;
@@ -95,10 +101,10 @@
}
};
getCompletions = function(prefix, candidates) {
var el, _j, _len2, _results;
var el, _i, _len, _results;
_results = [];
for (_j = 0, _len2 = candidates.length; _j < _len2; _j++) {
el = candidates[_j];
for (_i = 0, _len = candidates.length; _i < _len; _i++) {
el = candidates[_i];
if (el.indexOf(prefix) === 0) _results.push(el);
}
return _results;

5
src/repl.coffee
View File

@@ -33,12 +33,15 @@ backlog = ''
# The REPL context; must be visible outside `run` to allow for tab completion
sandbox = Script.createContext()
excludedGlobals = [
'global', 'GLOBAL', 'root'
]
nonContextGlobals = [
'Buffer', 'console', 'process'
'setInterval', 'clearInterval'
'setTimeout', 'clearTimeout'
]
sandbox[g] = global[g] for g in nonContextGlobals
sandbox[g] = global[g] for g of global when g not in excludedGlobals
sandbox.global = sandbox.root = sandbox.GLOBAL = sandbox
# The main REPL function. **run** is called every time a line of code is entered.