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#include <magi.h>
#include <stdio.h>
#include <stdlib.h>


void proceed_cookies(magi_cookie_list *cookies, magi_response *response)
{
    while (cookies) {
        magi_response_add(response, "Cookie with name [");
        magi_response_add(response, cookies->item.name);
        if (cookies->item.data) {
            magi_response_add(response, "] is [");
            magi_response_add(response, cookies->item.data);
        }
        if (cookies->item.domain) {
            magi_response_add(response, "] for domain [");
            magi_response_add(response, cookies->item.domain);
        }
        if (cookies->item.path) {
            magi_response_add(response, "] for path [");
            magi_response_add(response, cookies->item.path);
        }
        magi_response_add(response, "]<br/>");
        cookies = cookies->next;
    }
}

void proceed_params(magi_param_list *params, magi_response *response)
{
    while (params) {
        magi_response_add_format(response,
            "[%s] is [%s]<br/>", params->item.name, params->item.data);
        params = params->next;
    }
}

void proceed_files(magi_file_list *files, magi_response *response)
{
    while (files) {
        magi_file f = files->item;
        magi_response_add_format(response,
            "[%s] was [%s] on userside<br/>", f.param_name, f.file_name);
        files = files->next;
    }
}

void process_meta(magi_request *req, magi_response *res)
{
    magi_response_add(res, "I was called with method [");
    magi_response_add(res, req->method);
    if (req->uri) {
        magi_response_add(res, "] with URL [");
        magi_response_add(res, req->uri);
    }
    if (req->server_name) {
        magi_response_add(res, "] for server [");
        magi_response_add(res, req->server_name);
    }
    if (req->server_port) {
        magi_response_add(res, "] on port [");
        magi_response_add(res, req->server_port);
    }
    if (req->server_protocol) {
        magi_response_add(res, "] with protocol [");
        magi_response_add(res, req->server_protocol);
    }
    if (req->server_software) {
        magi_response_add(res, "] and I am running on software [");
        magi_response_add(res, req->server_software);
    }
    magi_response_add(res, "]<br/>");
}

void response_request(magi_request *req, magi_response *res)
{
    magi_response_add(res,
        "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' "
        "'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'>"
        "<html xmlns='http://www.w3.org/1999/xhtml'>"
        "<head><title>Echo</title></head>"
        "<body>");

    magi_response_add(res, "<h1>Echo CGI Script</h1>");
    process_meta(req, res);

    magi_response_add(res, "<h2>Cookies:</h2>");
    proceed_cookies(req->cookies, res);

    magi_response_add(res, "<h2>Parameters:</h2>");
    proceed_params(req->params, res);

    magi_response_add(res, "<h2>URL Parameters:</h2>");
    proceed_params(req->url_params, res);

    magi_response_add(res, "<h2>HTTP Parameters:</h2>");
    proceed_params(req->http_params, res);

    magi_response_add(res, "<h2>Files:</h2>");
    proceed_files(req->files, res);

    magi_response_add(res, "</body></html>");
}

int main(int argc, char const *argv[])
{
    magi_request request;
    magi_request_setup(&request);
    if (magi_request_full_cgi(&request)) {
        magi_response response;
        magi_response_setup(&response);
        response_request(&request, &response);
        magi_response_cgi_clear(&response);
    } else {
        magi_error_cgi(request.error);
    }
    magi_request_destroy(&request);
    return 0;
}