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Asked: 2026-06-17T13:35:11+00:00

I’m trying to create a C++ application to login in a Django server. I’ve

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I’m trying to create a C++ application to login in a Django server. I’ve been looking for this but I haven’t found a solution to my specific question.

I’m using one of the examples of libcurl website to do the request:

#include <stdio.h>
#include <curl/curl.h>

int main(void)
{
    CURL *curl;
    CURLcode res;

    curl = curl_easy_init();
    if(curl) {
        curl_easy_setopt(curl, CURLOPT_URL, "http://127.0.0.1/");

        /* Perform the request, res will get the return code */ 
        res = curl_easy_perform(curl);
        /* Check for errors */ 
        if(res != CURLE_OK)
            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));

        /* always cleanup */ 
        curl_easy_cleanup(curl);
    }
    return 0;
}

And I’ve found an option to put user and password:

curl_easy_setopt(curl, CURLOPT_USERPWD, "luis:123456");

But the problem is that I don’t know how Django can recognise this curl option.

Other posibility would be to complete the form that Django provides to login. The form that I’m using is:

<html><body>
<form method="post" action="/login">
{% csrf_token %}
  {% if form.errors %}
    <p class="error">Login error</p>
  {% endif %}
<table>
<tr>
    <td>Username</td>
    <td>{{ form.username }}</td>
</tr>
<tr>
    <td>Password</td>
    <td>{{ form.password }}</td>
</tr>
</table>

<input type="submit" value="login" />
</form>

</body>
</html>

With this option, my problem is that I don’t know how get and complete the form using C++ and curl.

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1 Answer

  1. Editorial Team

    You would need to send a POST request with the login form data to the login URL – unless the Django web-application provides a different login mechanism which is usually not the case.

    When you send the POST data and the Django login form processing did successfully authenticate the user you’ll get back a cookie that you’d to store and use in the subsequent requests.

    Also note that the login form uses the csrf_token tags which means if you don’t send a csrftoken cookie and a token with the form data with your request, Django will reject the request. I’d suggest you take a look at the HTTP request a browser does when you load and submit the login page. All modern browsers have nice debug tools to monitor the requests.

    Alternatively, in case you have control over the Django web-application, you can disable the CSRF token validation in the view function for the login page.

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