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Buying .Net javascript Dom interpreter

Discussion in 'Hire a Freelancer' started by Andypere, Apr 10, 2015.

  1. Andypere

    Andypere Newbie

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    Hello,

    My current problem is, I'm a .Net bot developer, and I need a fully functional dll or class that can interpret and run javascript received from pages.
    Being more specific, I need to fool Google Recaptcha in order do get easier captchas, when you dont pass its validation, you get a pretty messed up image that's even hard for humans to read.

    In order to fool this ReCaptcha feature, I need to interpret a obfuscated javascript and get a variable to pass in the post that generates the image.

    I'm willing to pay for this service, but first I want to know if someone can offer me this and in what form(dll, web service)

    Thanks
     
  2. cpa-marketing

    cpa-marketing Regular Member

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    do you need it multithreaded with proxy support? PM me your offer..i got what you need...actually using it lol
     
  3. DarkPixel

    DarkPixel Jr. VIP Jr. VIP

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  4. Andypere

    Andypere Newbie

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    Can't PM you, i have just created this account. I need it multhithead and proxy support wouldn't hurt.
    How can i contact you?
     
  5. qrazy

    qrazy Senior Member

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    Just use Selenium webdriver with a wrapper like PhantomJS. It should be straight forward to evaluate JS using them.
     
  6. DarkPixel

    DarkPixel Jr. VIP Jr. VIP

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    What if speed and low cpu usage is needed? I bet OP creates a multi-threaded bot with http requests, so using a full web browser is an overkill, especially if he just needs easier captcha.
     
  7. Andypere

    Andypere Newbie

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    Completely right sir, I have already tried this but phantomjs is extremelly slow.

    You said V8 should solve my problem, but does it support DOM implementation? Because Recaptcha javascritp uses it.
    I have already checked JSDom and EnvJS to use with it JINT. But JINT can't support them.

    Thanks a lot for your answers
     
  8. rushonerok

    rushonerok Newbie

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    I wrote the benchmark article DarkPixel posted. I use V8 through ClearScript and multi-threading for a rule engine that I wrote. I suggest using that for your case as well. There is a NuGet package called ClearScript.Manager that adds pooling so your threads aren't wasting time creating engines each time. Good luck on your project.
     
    Last edited: Apr 10, 2015
  9. qrazy

    qrazy Senior Member

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    I am not sure if you've resolved this by evaluating the JS. With Recaptcha what I noticed is even with javascript (also from browser) the captchas you get will be always get harder with number of requests. But when you pass the login cookies to the api, the captchas gotten are relatively easy.
     
  10. handmadebots

    handmadebots Senior Member

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  11. cpa-marketing

    cpa-marketing Regular Member

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    selenium is so much buggy and crashes alot for unknown reasons!
     
  12. handmadebots

    handmadebots Senior Member

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    I'm using it for 3 years now, and I did a lot of stuff in which I've used it.
    It has few bugs but ... in general it works great for me.