Develop Reference

Why aren't there line breaks in this <pre> tag?

I'm using highlight.js to display some JSON I'm receiving from a pubnub subscription. It is coloring the text but it is not adding line breaks as expected (via their demos). Also, a couple places in the documentation give the impression that the library generates new lines. See the useBR option here.
Here is my current code (I've tried a few different things):
pubnub.subscribe({
channel : 'TEST',
message : function(m){
console.log(m);
var hlt = hljs.highlight('json',m);
$('#jsonOutput').html("<pre>" + hlt.value + "</pre>");
}
});
And here is what the DOM looks like:
But here is the output:
How can I get line breaks? I want it to look similar to this:
{
"id":"TESTWIDGET1",
"value":371,
"timestamp":"2016-08-31T11:39:57.8733485-05:00"
}
fiddle: https://jsfiddle.net/vgfnod58/

You don't have any line-breaks in your code. The highlight function will only apply the formatting options, when the json-string was formatted. You string is only one single line. So, you will have to bring it in the right format first and then you can highlight it:
function print_r(object,html){
if(html) return '<pre>' + JSON.stringify(object, null, 4) + '</pre>';
else return JSON.stringify(object, null, 4);
}
var m = {"id":"TESTWIDGET1","value":351,"timestamp":"2016-08-31T12:03:24.3403952-05:00"};
var hlt = hljs.highlight('json',print_r(m));
$('#codehere').html(hlt.value);
Please be aware that I changed the var m from string to object (just remove the sourrunding ').
A working fiddle: https://jsfiddle.net/WalterIT/vgfnod58/2/

You should be able to substitute using <div> element with css white-space set to pre for <pre> element
Edit, Updated
Alternative approach inserting non-breaking space and newline characters before and after highlighted <span> elements
var m = '{"id":"TESTWIDGET1","value":351,"timestamp":"2016-08-31T12:03:24.3403952-05:00"}';
// hljs.configure({useBR: true});
var hlt = hljs.highlight('json',m);
$('#codehere').html(hlt.value)
$('#codehere span').each(function(i) {
if (i % 2 === 0)
$(this).before("\n ");
if (i === $('#codehere span').length -1)
$(this).after("\n")
});
jsfiddle https://jsfiddle.net/vgfnod58/3/

Replace array-mapped variables with the actual variable name/string?

I am trying to edit a Greasemonkey/jQuery script. I can't post the link here.
The code is obfuscated and compressed with minify.
It starts like this:
var _0x21e9 = ["\x67\x65\x74\x4D\x6F\x6E\x74\x68", "\x67\x65\x74\x55\x54\x43\x44\x61\x74\x65", ...
After "decoding" it, I got this:
var _0x21e9=["getMonth","getUTCDate","getFullYear", ...
It is a huge list (500+ ). Then, it has some variables like this:
month = date[_0x21e9[0]](), day = date[_0x21e9[1]](), ...
_0x21e9[0] is getMonth, _0x21e9[1] is getUTCDate, etc.
Is it possible to replace the square brackets with the actual variable name? How?
I have little knowledge in javascript/jQuery and can not "read" the code the way it is right now.
I just want to use some functions from this huge script and remove the others I do not need.
Update: I tried using jsbeautifier.org as suggested here and in the duplicated question but nothing changed, except the "indent".
It did not replace the array variables with the decoded names.
For example:
jsbeautifier still gives: month = date[_0x21e9[0]]().
But I need: month = date["getMonth"]().
None of the online deobfuscators seem to do this, How can I?
Is there a way for me to share the code with someone, at least part of it? I read I can not post pastebin, or similar here. I can not post it the full code here.
Here is another part of the code:
$(_0x21e9[8] + vid)[_0x21e9[18]]();
[8] is "." and [18] is "remove". Manually replacing it gives a strange result.

I haven't seen any online deobfuscator that does this yet, but the principle is simple.
Construct a text filter that parses the "key" array and then replaces each instance that that array is referenced, with the appropriate array value.
For example, suppose you have a file, evil.js that looks like this (AFTER you have run it though jsbeautifier.org with the Detect packers and obfuscators? and the Unescape printable chars... options set):
var _0xf17f = ["(", ")", 'div', "createElement", "id", "log", "console"];
var _0x41dcx3 = eval(_0xf17f[0] + '{id: 3}' + _0xf17f[1]);
var _0x41dcx4 = document[_0xf17f[3]](_0xf17f[2]);
var _0x41dcx5 = _0x41dcx3[_0xf17f[4]];
window[_0xf17f[6]][_0xf17f[5]](_0x41dcx5);
In that case, the "key" variable would be _0xf17f and the "key" array would be ["(", ")", ...].
The filter process would look like this:
Extract the key name using text processing on the js file. Result: _0xf17f
Extract the string src of the key array. Result:
keyArrayStr = '["(", ")", \'div\', "createElement", "id", "log", "console"]';
In javascript, we can then use .replace() to parse the rest of the JS src. Like so:
var keyArrayStr = '["(", ")", \'div\', "createElement", "id", "log", "console"]';
var restOfSrc = "var _0x41dcx3 = eval(_0xf17f[0] + '{id: 3}' + _0xf17f[1]);\n"
+ "var _0x41dcx4 = document[_0xf17f[3]](_0xf17f[2]);\n"
+ "var _0x41dcx5 = _0x41dcx3[_0xf17f[4]];\n"
+ "window[_0xf17f[6]][_0xf17f[5]](_0x41dcx5);\n"
;
var keyArray = eval (keyArrayStr);
//-- Note that `_0xf17f` is the key name we already determined.
var keyRegExp = /_0xf17f\s*\[\s*(\d+)\s*\]/g;
var deObsTxt = restOfSrc.replace (keyRegExp, function (matchStr, p1Str) {
return '"' + keyArray[ parseInt(p1Str, 10) ] + '"';
} );
console.log (deObsTxt);
if you run that code, you get:
var _0x41dcx3 = eval("(" + '{id: 3}' + ")");
var _0x41dcx4 = document["createElement"]("div");
var _0x41dcx5 = _0x41dcx3["id"];
window["console"]["log"](_0x41dcx5);
-- which is a bit easier to read/understand.
I've also created an online page that takes JS source and does all 3 remapping steps in a slightly more automated and robust manner. You can see it at:
jsbin.com/hazevo
(Note that that tool expects the source to start with the "key" variable declaration, like your code samples do)

#Brock Adams solution is brilliant, but there is a small bug: it doesn't take into account simple quoted vars.
Example:
var _0xbd34 = ["hello ", '"my" world'];
(function($) {
alert(_0xbd34[0] + _0xbd34[1])
});
If you try to decipher this example, it will result on this:
alert("hello " + ""my" world")
To resolve this, just edit the replacedSrc.replace into #Brock code:
replacedSrc = replacedSrc.replace (nameRegex, function (matchStr, p1Str) {
var quote = keyArry[parseInt (p1Str, 10)].indexOf('"')==-1? '"' : "'";
return quote + keyArry[ parseInt (p1Str, 10) ] + quote;
} );
Here you have a patched version.

for (var i = 0; i < _0x21e9.length; i++) {
var funcName = _0x21e9[i];
_0x21e9[funcName] = funcName;
}
this will add all the function names as keys to the array. allowing you to do
date[_0x21e9["getMonth"]]()

Unexpected Token Illegal with onclick Java Script in Salesforce.com

I have been working on this most of the morning but to no end. I am trying to execute a button that uses OnClick Java in Salesforce.com and it keeps throwing errors. I think the issue may be with special characters in the data as it works when I simply use just text. But any time numbers or any special characters are present I get the error "unexpected token ILLEGAL". Can anyone help me to see what I am doing wrong and how I can get away from failing when special characters are involved?
{!REQUIRESCRIPT("/soap/ajax/28.0/connection.js")}
var opptyObj = new sforce.SObject("Opportunity");
var caseObj = new sforce.SObject("Case");
var today = new Date();
var sOpptyId = "{!Case.Opportunity__c}";
if( sOpptyId != "")
{
alert("This case is already tied to an opportunity!");
}
else
{
opptyObj.AccountId = "{!Case.AccountId}";
opptyObj.CloseDate = sforce.internal.dateTimeToString(today);
opptyObj.Description="{!Case.Description}";
opptyObj.Case__c = "{!Case.Id}";
opptyObj.Name = "{!Case.Subject}";
opptyObj.StageName = "Estimate in Progress";
opptyObj.Created_from_Case__c = "Y";
opptyObj.Type = "New Business";
opptyObj.Amount = ".01";
var opptyresult = sforce.connection.create([opptyObj]);
if (opptyresult[0].success=='false')
{
alert("Opportunity creation failed: " + opptyresult[0].errors.message);
}
else
{
caseObj.Id = '{!Case.Id}';
caseObj.Opportunity__c = opptyresult[0].id;
caseObj.Status = "Estimate in Progress";
var caseResult = sforce.connection.update([caseObj]);
if(caseResult[0].success == 'false')
{
alert("Case update failed: " + caseResult[0].errors.message);
}
else
{
alert("An opportunity has been created and linked to this case.");
location.reload(true);
}
}
}

Assuming this is some kind of template, whatever is rendering this needs to properly escape some values in the strings it's inserting.
Given this:
opptyObj.Description="{!Case.Description}";
Let's say I enter a description consisting of this:
"That is awesome," said John.
When that is rendered in your template the result is this:
opptyObj.Description=""That is awesome," said John.";
As you might be able to see, the result is a syntax error.
You need to escape quote characters in an text inserted this way. And without knowing what is technology rendering this template I can't give you any specifics, but you want to replace " with \" and ' with \'. The \ escapes characters, forcing them to be treated as literal characters in the string instead of other special meaning.
This must be done as it's being inserted into the script. Something in the spirit of this:
opptyObj.Description="{!Case.Description.replace(/'/, "\\'").replace(/"/, '\\"')}
Exactly how to do that depends on what language or template engine is being used here. But th eresult should look like this:
opptyObj.Description="\"That is awesome,\" said John.";
Ruby on Rails implements an escape_javascript method, which sanitizes data for injection into Javascript. It does the following replacements. It seems like a good baseline.
'\\' => '\\\\'
'</' => '<\/'
"\r\n" => '\n'
"\n" => '\n'
"\r" => '\n'
'"' => '\\"'
"'" => "\\'"
UPDATE:
According to this: http://www.salesforce.com/us/developer/docs/pages/Content/pages_security_tips_scontrols.htm
It looks like you want the JSENCODE function. Something like this, perhaps?
opptyObj.Description="{!JSENCODE(Case.Description)}";

Dojo Toolkit: how to escape an HTML string?

A user of my HTML 5 application can enter his name in a form, and this name will be displayed elsewhere. More specifically, it will become the innerHTML of some HTML element.
The problem is that this can be exploited if one enters valid HTML markup in the form, i.e. some sort of HTML injection, if you will.
The user's name is only stored and displayed on the client side so in the end the user himself is the only one who is affected, but it's still sloppy.
Is there a way to escape a string before I put it in an elements innerHTML in Dojo? I guess that Dojo at one point did in fact have such a function (dojo.string.escape()) but it doesn't exist in version 1.7.
Thanks.

dojox.html.entities.encode(myString);

Dojo has the module dojox/html/entities for HTML escaping. Unfortunately, the official documentation still provides only pre-1.7, non-AMD example.
Here is an example how to use that module with AMD:
var str = "<strong>some text</strong>"
require(['dojox/html/entities'], function(entities) {
var escaped = entities.encode(str)
console.log(escaped)
})
Output:
<strong>some text</strong>

As of Dojo 1.10, the escape function is still part of the string module.
http://dojotoolkit.org/api/?qs=1.10/dojo/string
Here's how you can use it as a simple template system.
require([
'dojo/string'
], function(
string
){
var template = '<h1>${title}</h1>';
var message = {title: 'Hello World!<script>alert("Doing something naughty here...")</script>'}
var html = string.substitute(
template
, message
, string.escape
);
});

I tried to find out how other libraries implement this function and I stole the idea of the following from MooTools:
var property = (document.createElement('div').textContent == null) ? 'innerText': 'textContent';
elem[property] = "<" + "script" + ">" + "alert('a');" + "</" + "script" + ">";
So according to MooTools there is either the innerText or the textContent property which can escape HTML.

Check this example of dojo.replace:
require(["dojo/_base/lang"], function(lang){
function safeReplace(tmpl, dict){
// convert dict to a function, if needed
var fn = lang.isFunction(dict) ? dict : function(_, name){
return lang.getObject(name, false, dict);
};
// perform the substitution
return lang.replace(tmpl, function(_, name){
if(name.charAt(0) == '!'){
// no escaping
return fn(_, name.slice(1));
}
// escape
return fn(_, name).
replace(/&/g, "&").
replace(/</g, "<").
replace(/>/g, ">").
replace(/"/g, """);
});
}
// that is how we use it:
var output = safeReplace("<div>{0}</div",
["<script>alert('Let\' break stuff!');</script>"]
);
});
Source: http://dojotoolkit.org/reference-guide/1.7/dojo/replace.html#escaping-substitutions

Javascript syntax error

Update: I tried a version of the script without the "beforeContentUpdate" part, and this script returns the following JSON
{"COLUMNS":["TNAME","TBRIEF","GAMEID","TITLEID","RDATE","GNAME","PABBR","PNAME","RSCORE","RNAME"],
"DATA":[["Dark Void","Ancient gods known as 'The Watchers,' once banished from our world by superhuman Adepts, have returned with a vengeance.",254,54,"January, 19 2010 00:00:00","Action & Adventure","X360","Xbox 360",3.3,"14 Anos"]]}
Using the script that includes "beforeContentUpdate," however, returns nothing. I used Firebug to see the contents of the div generated by the tooltip, and it's blank!
Hello, I'm wondering if anyone can help me with a syntax error in line 14 of this code:
The debugger says missing ) in parenthetical on var json = eval('(' + content + ')');
// Tooltips for index.cfm
$(document).ready(function()
{
$('#catalog a[href]').each(function()
{
$(this).qtip( {
content: {
url: 'components/viewgames.cfc?method=fGameDetails',
data: { gameID: $(this).attr('href').match(/gameID=([0-9]+)$/)[1] },
method: 'get'
},
api: {
beforeContentUpdate: function(content) {
var json = eval('(' + content + ')');
content = $('<div />').append(
$('<h1 />', {
html: json.TNAME
}));
return content;
}
},
});
});
});

You forgetting a
+
Should be:
var json = eval('(' + content + ')');

the best for this is www.jslint.com
i'd copied and paste your code and show me this:
Problem at line 21 character 10: Extra
comma.
},

Make sure you JSON has no extra characters, the JSON must be valid. Check how the content returns with a plain alert so nothing will change the string.
Also, consider using parseJSON from jQuery instead of eval. Quote:
var obj = jQuery.parseJSON('{"name":"John"}');
alert( obj.name === "John" );

This turned out to be another case where the ColdFusion debugger, when request debugging output is turned on, causes an ajax error. This is one big "gotcha" we need to remember when working with ColdFusion with debugging enabled. It breaks down ajax.