Bruteforcer

Enumerating all possible candidates for a problem to find the solution.

Installation

$ npm install bruteforcer

Usage

First we create a Bruteforcer, giving it characters, length limit and a callback. After that all we need to do is start(). Check every candidate in the callback and return true when the problem is sovled.

let Bruteforcer = require('bruteforcer');
 
let bf = new Bruteforcer({
  chars: 'abc',
  min: 1,
  max: 2,
  cbk: (str, caseIdx, caseNum) => {
    console.log('Trying', str);
    
    if ('ca' == str) {
      console.log('We got it!');
      return true;
    }
    else {
      return false;
    }
  }
});
 
bf.start();
 

Options

These are keys in the config object you can pass to the Bruteforcer along with.

• chars characters(a string or an array of strings) to generate candidates.
• min (optional)minimum length of the candidate, default is 1.
• max (optional)maximum length of the candidate, default is 1.
• cbk (optional) a callback to check every candidate. It is called with three parameters: candidate, caseIndex and caseNum. Return "true" to stop the enumerating.

Note

When passing the chars option with an array of strings, it means that you want to generate the candidate using each charset in the array orderly and at least once.

new Bruteforcer({
  chars: ['abc', '123'],
  min: 3,
  max: 3,
  cbk: chkResult
  });
 
// "ab3" is a candidate
// "31a" is not a candidate
// "123" is not a candidate
// "abc" is not a candidate

API

Following APIs are provided as well:

startFrom(caseIndex)

To start enumerating with specified caseIndex which you can get by calling getCaseIndex(). You may use it to restore previous session.

stop()

Another way to terminate the enumerating.

setCallback(callback)

Set the callback at a later time.

getCaseIndex()

Get the current case index among all cases.

getCaseNumber()

Get the total number of cases.

License

MIT License.