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Add typechecking to Socket#pack to avoid parsing undefined #125

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Add typechecking to Socket#pack to avoid parsing undefined #125

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12 changes: 12 additions & 0 deletions lib/sockets/sock.js
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Original file line number Diff line number Diff line change
Expand Up @@ -82,12 +82,24 @@ Socket.prototype.use = function(plugin){
/**
* Creates a new `Message` and write the `args`.
*
* Will throw if any of the provided `args` are `undefined`, given that
* JSON.stringify's result will be coerced to `'undefined'`, which JSON.parse
* cannot handle.
*
* @param {Array} args
* @return {Buffer}
* @api private
*/

Socket.prototype.pack = function(args){
var len = args.length;

for (var i = 0; i < len; i++) {
if (args[i] === undefined) {
throw new Error('cannot pack undefined');
}
}

var msg = new Message(args);
return msg.toBuffer();
};
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13 changes: 12 additions & 1 deletion test/test.arg-types.js
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Original file line number Diff line number Diff line change
Expand Up @@ -14,8 +14,19 @@ var done;
push.bind(4000);
push.send('foo', { bar: 'baz' }, ['some', 1], new Buffer('hello'));

assert.throws(function() {
push.send(undefined);
}, /undefined/, 'send should reject unserializable types');
assert.throws(function() {
push.send(null, undefined);
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Instead of this test, should probably ensure that push.send(null) still works.

}, /undefined/, 'send should reject unserializable types');
assert.throws(function() {
push.send({ bar: 'baz' }, undefined);
}, /undefined/, 'send should reject unserializable types');

pull.connect(4000);
pull.on('message', function(a, b, c, d){
assert(!done, 'message already received');
assert('string' == typeof a);
b.should.eql({ bar: 'baz' });
c.should.eql(['some', 1]);
Expand All @@ -29,4 +40,4 @@ pull.on('message', function(a, b, c, d){

process.on('exit', function(){
assert(done);
});
});