Line data    Source code

       1             : /*
       2             :   This file is part of TALER
       3             :   Copyright (C) 2014-2018, 2021 Taler Systems SA
       4             : 
       5             :   TALER is free software; you can redistribute it and/or modify it under the
       6             :   terms of the GNU General Public License as published by the Free Software
       7             :   Foundation; either version 3, or (at your option) any later version.
       8             : 
       9             :   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
      10             :   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
      11             :   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
      12             : 
      13             :   You should have received a copy of the GNU General Public License along with
      14             :   TALER; see the file COPYING.  If not, see
      15             :   <http://www.gnu.org/licenses/>
      16             : */
      17             : /**
      18             :  * @file lib/exchange_api_curl_defaults.c
      19             :  * @brief curl easy handle defaults
      20             :  * @author Florian Dold
      21             :  */
      22             : 
      23             : #include "exchange_api_curl_defaults.h"
      24             : 
      25             : 
      26             : CURL *
      27           0 : TALER_EXCHANGE_curl_easy_get_ (const char *url)
      28             : {
      29             :   CURL *eh;
      30             : 
      31           0 :   eh = curl_easy_init ();
      32           0 :   if (NULL == eh)
      33             :   {
      34           0 :     GNUNET_break (0);
      35           0 :     return NULL;
      36             :   }
      37           0 :   GNUNET_assert (CURLE_OK ==
      38             :                  curl_easy_setopt (eh,
      39             :                                    CURLOPT_URL,
      40             :                                    url));
      41           0 :   GNUNET_assert (CURLE_OK ==
      42             :                  curl_easy_setopt (eh,
      43             :                                    CURLOPT_FOLLOWLOCATION,
      44             :                                    1L));
      45             :   /* Enable compression (using whatever curl likes), see
      46             :      https://curl.se/libcurl/c/CURLOPT_ACCEPT_ENCODING.html  */
      47           0 :   GNUNET_break (CURLE_OK ==
      48             :                 curl_easy_setopt (eh,
      49             :                                   CURLOPT_ACCEPT_ENCODING,
      50             :                                   ""));
      51             :   /* limit MAXREDIRS to 5 as a simple security measure against
      52             :      a potential infinite loop caused by a malicious target */
      53           0 :   GNUNET_assert (CURLE_OK ==
      54             :                  curl_easy_setopt (eh,
      55             :                                    CURLOPT_MAXREDIRS,
      56             :                                    5L));
      57           0 :   GNUNET_assert (CURLE_OK ==
      58             :                  curl_easy_setopt (eh,
      59             :                                    CURLOPT_TCP_FASTOPEN,
      60             :                                    1L));
      61           0 :   return eh;
      62             : }