I'm trying to use my Cheap Captcha account with Jdownloader, but I'm having some issues. Jdownloader can connect to my account (I can see my username and credit balance in the bottom left hand corner), but whenever it tries to send a captcha to the Cheap Captcha service, it says "No Answer!". This message pops up immediately after the normal countown period; there is no waiting period once the captcha is sent to Cheap Captcha indicating that there is some technical glitch and not merely a time out.

If any more specific information is needed, please let me know!

[Jiaz]

Please send example links and username/password to support@jdownloader.org so we can check it

[Jiaz]

No changes in JDownloader since 13.10.2016. So must be something on their side.

[Jiaz]

[Jiaz]

Please contact CheapCaptcha Support about this.
Their server responds with
"Cannot process request at this moment. Try again later!"

I got the same issue with the Cheap Captcha PlugIn. So I tested some scenarios with their API. I found out, that the server answers with "Cannot process request at this moment. Try again later!" even if the data provided is not correctly formatted.

I did some wireshark-captures of the POST request
JDownloader does the following (without success; data shortened):

---------------------533231264343642
Content-Disposition: form-data; name="username"

%USERNAME
---------------------533231264343642
Content-Disposition: form-data; name="password"

%PASSWORD
---------------------533231264343642
Content-Disposition: form-data; name="captchafile"

base64:iVBORw0...
---------------------533231264343642--

I created a POST request by myself (working):

--5830f348-6f4b-4358-a18a-c0da69218359
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name="username"

%USERNAME
--5830f348-6f4b-4358-a18a-c0da69218359
Content-Type: text/plain; charset=utf-8
Content-Disposition: form-data; name="password"

%PASSWORD
--5830f348-6f4b-4358-a18a-c0da69218359
Content-Disposition: form-data; name="captchafile"; filename="image.jpg"; filename*=utf-8''%22image.jpg%22

JFIF``C		



	
C2"	
}!1A...
--5830f348-6f4b-4358-a18a-c0da69218359--

If I leave 'filename="image.jpg"' or use base64 string it doesn't work. Can you please check the PlugIn?

[Jiaz]

What shall we check? We use their api and it responds with error.

I checked the API for java. The method for uploading is the following:

    public static String UploadCaptcha(String username, String password, String image_filename) 
    throws Exception
    /**
    *   function to upload captcha
    *   returns captcha status as url-encoded query string of parameters
    */

    {
        File file = new File(image_filename);
        byte[] image_data = new byte[(int) file.length()];
        DataInputStream dis = new DataInputStream(new FileInputStream(file));
        dis.readFully(image_data);
        dis.close();
        int image_size = image_data.length;

        String url = String.format("**External links are only visible to Support Staff**, API_HOST);
        URL obj = new URL(url);
        URLConnection con = (URLConnection) obj.openConnection();
        con.setDoOutput(true);
        String boundary = String.format("%s", System.currentTimeMillis() / 1000l);	
        con.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
        String newline = "\r\n";
        String template = newline +
            "--"+boundary + newline +
            "Content-Disposition: form-data; name="username""+newline+
            ""+newline+
            username+newline+
            "--"+boundary+newline+
            "Content-Disposition: form-data; name="password""+newline+
            newline+
            password + newline +
            "--" + boundary + newline +
            "Content-Disposition: form-data; name="captchafile"; filename="image.jpg"" + newline+
            "Content-Type: image/jpeg" + newline+
            "Content-Length: "+String.format("%s",image_size)+newline+
            newline;
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(template);
        wr.write(image_data, 0, image_size);
        wr.writeBytes(String.format("\r\n--%s--",boundary));      
        wr.flush();
        wr.close();
        BufferedReader in = new BufferedReader(
        new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();
        String 	str_response = response.toString();
        return str_response;
    }

I can clearly see the filename property, that is missing in the wireshark capture. So I assume you do not use the actual API. Can you update this?

[raztoki]

we do not use there provided examples, as it doesn't apply to JDownloader backend.

if you want to check the source code, its located at
org.jdownloader.captcha.v2.solver.cheapcaptcha.CheapCaptchaSolver

raztoki

[Jiaz]

JDownloader uses the captchafile with base64, there is no filename for that

[eagleg]

thought it was solved

[Jiaz]

Does it work (more reliable) with your upload method?

Yes, it does work with my method.

[Jiaz]

With next core update, your upload method will be used. Please provide feedback then