antibot.c


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#include "cgit.h"
#include <string.h>

// for useragent in "ClaudeBot/1.0" "GPTBot/1.2" "Amazonbot/0.1" "Google-CloudVertexBot" "Google-Extended"
const char* knownUserAgentContains[] = {
    "ClaudeBot/1.0",
    "GPTBot/1.2",
    "Amazonbot/0.1",
    "Google-CloudVertexBot",
    "Google-Extended",
    // ""
};

int is_suspected_bot(char* userAgent)
{
    for (int i = 0; i < sizeof(knownUserAgentContains) / sizeof(knownUserAgentContains[0]); i++)
    {
        if (strstr(userAgent, knownUserAgentContains[i]) != NULL)
        {
            return true;
        }
    }

    return false;
}

void render_bot_err_page()
{
    ctx.page.title = "Human verification";
    cgit_print_http_headers();
    cgit_print_docstart();
    cgit_print_pageheader();
    html("<h1>Please verify that you are human.</h1>\n");
    html("<p>meow</p>\n");
    cgit_print_docend();
    fflush(stdout);
    for (int i = 0; i < 1000; i++)
    {
        printf("%s\n", ctx.env.user_agent);
        // sendfile(STDOUT_FILENO, fileno(fopen("/dev/urandom", "r")), NULL, 1*1024*1024);
    }

    fflush(stdout);
}