src/curl_handle.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2008-2017 by Andrzej Rybczak                            *
   3  *   electricityispower@gmail.com                                          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
  19  ***************************************************************************/
  20
  21 #include "curl_handle.h"
  22
  23 #include <cstdlib>
  24
  25 namespace
  26 {
  27         size_t write_data(char *buffer, size_t size, size_t nmemb, void *data)
  28         {
  29                 size_t result = size*nmemb;
  30                 static_cast<std::string *>(data)->append(buffer, result);
  31                 return result;
  32         }
  33 }
  34
  35 CURLcode Curl::perform(std::string &data, const std::string &URL, const std::string &referer, bool follow_redirect, unsigned timeout)
  36 {
  37         CURLcode result;
  38         CURL *c = curl_easy_init();
  39         curl_easy_setopt(c, CURLOPT_URL, URL.c_str());
  40         curl_easy_setopt(c, CURLOPT_WRITEFUNCTION, write_data);
  41         curl_easy_setopt(c, CURLOPT_WRITEDATA, &data);
  42         curl_easy_setopt(c, CURLOPT_CONNECTTIMEOUT, timeout);
  43         curl_easy_setopt(c, CURLOPT_NOSIGNAL, 1);
  44         // Workaround last.fm SSL certificate problems.
  45         curl_easy_setopt(c, CURLOPT_SSL_VERIFYHOST, 0);
  46         curl_easy_setopt(c, CURLOPT_USERAGENT, "ncmpcpp " VERSION);
  47         if (follow_redirect)
  48                 curl_easy_setopt(c, CURLOPT_FOLLOWLOCATION, 1L);
  49         if (!referer.empty())
  50                 curl_easy_setopt(c, CURLOPT_REFERER, referer.c_str());
  51         result = curl_easy_perform(c);
  52         curl_easy_cleanup(c);
  53         return result;
  54 }
  55
  56 std::string Curl::escape(const std::string &s)
  57 {
  58         char *cs = curl_easy_escape(0, s.c_str(), s.length());
  59         std::string result(cs);
  60         curl_free(cs);
  61         return result;
  62 }