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"]]()
Related
I have an object in JS like this:
var getToDoValue = document.getElementById("toDoInput").value;
var nameOfTeamMember = "Tobias";
var person = new Object();
person.task = "Task: " + getToDoValue;
person.member = "Member: " + nameOfTeamMember;
But problem comes when I try to enter the value of "nameOfTeamMember into an if statement:
var mem = person.member;
if (mem == "Tobias") {
console.log("works");
}
This does not work. But when I just console.log "var mem" outside of if statement it gives me "Member: Tobias". Any suggestions? Im still kinda new to JS so prob something with the comparisons
the issue with you code is that the value in person.member is "Member: Tobias" as you pointed out from the result of your console.log, which is the result from the line of code below where you are concatenating the name with the string "Memeber: " and assigning it to the member property.
person.member = "Member: " + nameOfTeamMember;
One option you could use to do the comparison would be:
if (mem.contains("Tobias", 8) {
console.log("works");
}
The 8 is so your search starts after the colon (:) so you don't include "Member:" in it, just what comes after it, which is the actual member name.
I have a web page in which contents are loaded dynamically from json. Now i need to find the texts like so2,co2,h2o after the page gets loaded and have to apply subscript for those texts. Is it possible to do this?? If yes please let me know the more efficient way of achieving it.
for example :
var json = { chemA: "value of CO2 is", chemB: "value of H2O is" , chemC: "value in CTUe is"};
in the above json i need to change CO2,H2O and e in CTUe as subscript. how to achieve this??
Take a look at this JSfiddle which shows two approaches:
HTML-based using the <sub> tag
Pure Javascript-based by replacing the matched number with the subscript equivalent in unicode:
http://jsfiddle.net/7gzbjxz3/
var json = { chemA: "CO2", chemB: "H2O" };
var jsonTxt = JSON.stringify(json).replace(/(\d)+/g, function (x){
return String.fromCharCode(8320 + parseInt(x));
});
Option 2 has the advantage of being more portable since you're actually replacing the character. I.e., you can copy and paste the text into say notepad and still see the subscripts there.
The JSFiddle shows both approaches. Not sure why the magic number is 8320 when I was expecting it to be 2080...
So you are generating DOM element as per JSON data you are getting. So before displaying it to DOM you can check if that JSON data contains so2,co2,h2o and if it is then replace that with <sub> tag.
For ex:
var text = 'CO2';
text.replace(/(\d+)/g, "<sub>" + "$1" + "</sub>") ;
And this will returns something like this: "CO2".
As per JSON provided by you:
// Only working for integer right now
var json = { chemA: "value of CO2 is", chemB: "value of H2O is" , chemC: "value in CTUe is"};
$.each(json, function(index, value) {
json[index] = value.replace(/(\d+)/g, "<sub>" + "$1" + "</sub>");
});
console.log(json);
Hope this will helps!
To do this, I would create a prototype function extending String and name it .toSub(). Then, when you create your html from your json, call .toSub() on any value that might contain text that should be in subscript:
// here is the main function
String.prototype.toSub = function() {
var str=this;
var subs = [
['CO2','CO<sub>2</sub>'],
['H2O','H<sub>2O</sub>'],
['CTUe','CO<sub>e</sub>'] // add more here as needed.
];
for(var i=0;i<subs.length;i++){
var chk = subs[i][0];
var rep = subs[i][1];
var pattern = new RegExp('^'+chk+'([ .?!])|( )'+chk+'([ .?!])|( )'+chk+'[ .?!]?$','ig'); // makes a regex like this: /^CO2([ .?!])|( )CO2([ .?!])|( )CO2[ .?!]?$/gi using the surrent sub
// the "empty" capture groups above may seem pointless but they are not
// they allow you to capture the spaces easily so you dont have to deal with them some other way
rep = '$2$4'+rep+'$1$3'; // the $1 etc here are accessing the capture groups from the regex above
str = str.replace(pattern,rep);
}
return str;
};
// below is just for the demo
var json = { chemA: "value of CO2 is", chemB: "value of H2O is" , chemC: "value in CTUe is", chemD: "CO2 is awesome", chemE: "I like H2O!", chemF: "what is H2O?", chemG: "I have H2O. Do you?"};
$.each(json, function(k, v) {
$('#result').append('Key '+k+' = '+v.toSub()+'<br>');
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="result"></div>
Note:
Anytime you do something like this with regex, you run the chance of unintentionally matching and converting some unwanted bit of text. However, this approach will have far fewer edge cases than searching and replacing text in your whole document as it is much more targeted.
I'm trying to use JavaScript to insert HTML ruby characters on my text. The idea is to find the kanji and replace it with the ruby character that is stored on the fgana array. My code goes like this:
for (var i = 0; i < kanji.length; i++) {
phrase = phrase.replace(kanji[i],"<ruby><rb>" + kanji[i] + "</rb><rt>" + fgana[i] + "</rt></ruby>");
}
It does that just fine when there aren't duplicated characters to be replaced, but when there are the result is different from what I except. For example, if the arrays are like this:
kanji = ["毎朝","時","時"]
fgana = ["まいあさ"、"とき"、"じ"]
And the phrase is あの時毎朝６時におきていた the result becomes:
あの<ruby><rb><ruby><rb>時</rb><rt>じ</rt></ruby></rb><rt>とき</rt></ruby><ruby><rb>毎朝</rb><rt>まいあさ</rt></ruby> 6 時 におきていた。
Instead of the desired:
あの<ruby><rb>時</rb><rt>とき</rt></ruby><ruby><rb>毎朝</rb><rt>まいあさ</rt></ruby> 6 <ruby><rb>時</rb></ruby></rb><rt>じ</rt> におきていた。
To illustrate it better, look at the rendered example:
Look at how the first 時 receives both values とき and じ while the second receives nothing. The idea is to the first be とき and the second じ (as Japanese has different readings for the same character depending on some factors).
Whats might be the failure on my code?
Thanks in advance
It fails because the char you are looking for still exists in the replaced version:
...replace(kanji[i],"<ruby><rb>" + kanji[i]...
And this one should work:
var kanji = ["毎朝", "時", "時"],
fgana = ["まいあさ", "とき", "じ"],
phrase = "あの時毎朝 6 時におきていた",
rx = new RegExp("(" + kanji.join("|") + ")", "g");
console.log(phrase.replace(rx, function (m) {
var pos = kanji.indexOf(m),
k = kanji[pos],
f = fgana[pos];
delete kanji[pos];
delete fgana[pos];
return "<ruby><rb>" + k + "</rb><rt>" + f + "</rt></ruby>"
}));
Just copy and paste into console and you get:
あの<ruby><rb>時</rb><rt>とき</rt></ruby><ruby><rb>毎朝</rb><rt>まいあさ</rt></ruby> 6 <ruby><rb>時</rb><rt>じ</rt></ruby>におきていた
Above line is a bit different from your desired result thou, just not sure if you indeed want this:
...6 <ruby><rb>時</rb></ruby></rb><rt>じ</rt>...
^^^^^ here ^ not here?
I am looking to create a Ui form section in my application that will Dynamically Add Remove UiApp Form Elements. I was trying to use the example from App Script Tutorials here
This example works great as far as performing the add remove elements, but when I use the submit button to capture the values, it submits as a JSON.stringify format. When I just want to capture the values only in a text or string format that will be added to a html email.
If there is way to convert JSON.stringify to text, string or get the values only in format, I will continue to use this example.
If not I was wonder if the following Javascript HTML code can be convert into GAS code and able to capture the values for each entry in a HTML email template to using in MailApp.
http://jsfiddle.net/g59K7/
Any suggestions, examples or adjustments to the codes would be greatly appreciated.
Thank you in advance
If you don't want the result to be in a JSON object, then you can adjust the _processSubmittedData(e) function. Right now he has it writing everything to an Object, which is fine. All you have to do is have a way to parse it:
function _processSubmittedData(e){
var result = {};
result.groupName = e.parameter.groupName;
var numMembers = parseInt(e.parameter.table_tag);
result.members = [];
//Member info array
for(var i=1; i<=numMembers; i++){
var member = {};
member.firstName = e.parameter['fName'+i];
member.lastName = e.parameter['lName'+i];
member.dateOfBirth = e.parameter['dob'+i];
member.note = e.parameter['note'+i];
result.members.push(member);
}
var htmlBody = 'Group Name: ' + result.groupName;
for(var a in result.members) {
var member = result.members[a];
var date = member.dateOfBirth;
var last = member.lastName;
var first = member.firstName;
var note = member.note;
htmlBody += first + ' ' + last + ' was born on ' + date + ' and has this note: ' + note;
}
MailApp.sendEmail('fakeEmail#fake.com',"Test Subject Line", "", {htmlBody: htmlBody});
}
My first delve into working with JSON data. I have a bit of experience using jQuery though.
I'm posting to this URL (tumblr api): jyoseph.com/api/read/json
What I'm trying to do is output the json that gets returned. What I have so far:
$(document).ready(function(){
$.getJSON("http://jyoseph.com/api/read/json?callback=?",
function(data) {
//console.log(data);
console.log(data.posts);
$.each(data.posts, function(i,posts){
var id = this.id;
var type = this.type;
var date = this.date;
var url = this.url;
var photo500 = this.photo-url-500;
$('ul').append('<li> ' +id+ ' - ' +type+ ' - ' +date+ ' - ' +url+ ' - ' +photo500+ ' - ' + ' </li>');
});
});
});
See my jsbin post for the entire script: http://jsbin.com/utaju/edit
Some of the keys from tumblr have "-" hyphens in them, and that seem to be causing a problem. As you can see "photo-url-500" or another "photo-caption" is causing the script to break, it's outputting NaN.
Is there a problem with having hyphens in the key names? Or am I going about this all wrong?
If there are dashes in the names you'll need to access them differently. Change var photo500 = this.photo-url-500; to read var photo500 = this["photo-url-500"];.
Please note it is best not to append inside each iteration. Better to append to a string or push to an array then append once after the iterator has finished. Appending to the dom is expensive.
Use the bracket notation to access the members:
var photo500 = this['photo-url-500'];