Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** This program 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

#include "zbxcommon.h"

​

#ifdef HAVE_LIBCURL

​

#include "zbxhttp.h"

​

#include "zbxnum.h"

#include "zbxdbhigh.h"

#include "zbxstr.h"

#include "zbxthreads.h"

#include "zbxjson.h"

#include "zbxcurl.h"

​

#include <stddef.h>

​

size_t  zbx_curl_write_cb(void *ptr, size_t size, size_t nmemb, void *userdata)

{

    size_t          r_size = size * nmemb;

    zbx_http_response_t *response;

​

    response = (zbx_http_response_t*)userdata;

​

    if (ZBX_MAX_RECV_DATA_SIZE < response->offset + r_size)

        return 0;

​

    zbx_str_memcpy_alloc(&response->data, &response->allocated, &response->offset, (const char *)ptr, r_size);

​

    return r_size;

}

​

size_t  zbx_curl_ignore_cb(void *ptr, size_t size, size_t nmemb, void *userdata)

{

    ZBX_UNUSED(ptr);

    ZBX_UNUSED(userdata);

​

    return size * nmemb;

}

​

int zbx_http_prepare_callbacks(CURL *easyhandle, zbx_http_response_t *header, zbx_http_response_t *body,

        zbx_curl_cb_t header_cb, zbx_curl_cb_t body_cb, char *errbuf, char **error)

{

    CURLcode    err;

​

    if (CURLE_OK != (err = curl_easy_setopt(easyhandle, CURLOPT_HEADERFUNCTION, header_cb)))

    {

        *error = zbx_dsprintf(*error, "Cannot set header function: %s", curl_easy_strerror(err));

        return FAIL;

    }

​

    if (CURLE_OK != (err = curl_easy_setopt(easyhandle, CURLOPT_HEADERDATA, header)))

    {

        *error = zbx_dsprintf(*error, "Cannot set header callback: %s", curl_easy_strerror(err));

        return FAIL;

    }

​

    if (CURLE_OK != (err = curl_easy_setopt(easyhandle, CURLOPT_WRITEFUNCTION, body_cb)))

    {

        *error = zbx_dsprintf(*error, "Cannot set write function: %s", curl_easy_strerror(err));

        return FAIL;

    }

​

    if (CURLE_OK != (err = curl_easy_setopt(easyhandle, CURLOPT_WRITEDATA, body)))

    {

        *error = zbx_dsprintf(*error, "Cannot set write callback: %s", curl_easy_strerror(err));

        return FAIL;

    }

​

    if (CURLE_OK != (err = curl_easy_setopt(easyhandle, CURLOPT_ERRORBUFFER, errbuf)))

    {

        *error = zbx_dsprintf(*error, "Cannot set error buffer: %s", curl_easy_strerror(err));

        return FAIL;

    }

​

    return SUCCEED;

}

​

int zbx_http_prepare_ssl(CURL *easyhandle, const char *ssl_cert_file, const char *ssl_key_file,