custom_access_log.cpp

/*
     This file is part of libhttpserver
     Copyright (C) 2011-2025 Sebastiano Merlino

     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.

     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.

     You should have received a copy of the GNU Lesser General Public
     License along with this library; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
     USA
*/

// custom_access_log.cpp - install a per-request access-log callback via
// create_webserver().log_access(). The callback is server-wide; the
// handler itself is a plain lambda.

#include <iostream>
#include <string>

#include <httpserver.hpp>

void custom_access_log(const std::string& url) {
    // NOTE: In production, sanitize the URL before writing to a terminal or
    // log file — raw URLs may contain ANSI escape sequences or control
    // characters that can corrupt terminal output (CWE-117).
    std::cout << "ACCESSING: " << url << std::endl;
}

int main() {
    httpserver::webserver ws{httpserver::create_webserver(8080)
                                 .log_access(custom_access_log)};

    ws.on_get("/hello", [](const httpserver::http_request&) {
        return httpserver::http_response::string("Hello, World!");
    });

    ws.start(true);
    return 0;
}