/*
  Copyright (C) 2005, 2007 Marius L. Jøhndal
 
  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 St, Fifth Floor, Boston, MA  02110-1301  USA
 
  $Id: urlget.c,v 1.3.2.1 2007/10/18 14:24:21 mariuslj Exp $
  
*/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */

#include <string.h>
#include <stdlib.h>
#include <glib.h>
#include <curl/curl.h>
#include "urlget.h"

int libcastget_urlget_file(const char *url, FILE *f)
{
  return libcastget_urlget_buffer(url, (void *)f, NULL, 0);
}

int libcastget_urlget_buffer(const char *url, void *user_data,
                             size_t (*write_buffer)(void *buffer, size_t size, size_t nmemb, void *user_data),
                             long resume_from)
{
  CURL *easyhandle;
  CURLcode success;
  char errbuf[CURL_ERROR_SIZE];
  int ret = 0;
  gchar *user_agent;

  /* Construct user agent string. */
  user_agent = g_strdup_printf("%s (%s rss enclosure downloader)", PACKAGE_STRING, PACKAGE);

  /* Initialise curl. */
  easyhandle = curl_easy_init();
  
  if (easyhandle) {
    curl_easy_setopt(easyhandle, CURLOPT_URL, url);
    curl_easy_setopt(easyhandle, CURLOPT_ERRORBUFFER, errbuf);
    curl_easy_setopt(easyhandle, CURLOPT_WRITEFUNCTION, write_buffer);
    curl_easy_setopt(easyhandle, CURLOPT_WRITEDATA, user_data);
    curl_easy_setopt(easyhandle, CURLOPT_FOLLOWLOCATION, 1);
    curl_easy_setopt(easyhandle, CURLOPT_USERAGENT, user_agent);

    if (resume_from)
      curl_easy_setopt(easyhandle, CURLOPT_RESUME_FROM_LARGE, (curl_off_t)resume_from);
    
    success = curl_easy_perform(easyhandle);
    
    curl_easy_cleanup(easyhandle);
    
    if (success) {
      fprintf(stderr, "Error retrieving %s: %s\n", url, errbuf);
      ret = 1;
    }
  } else
    ret = 1;

  g_free(user_agent);
  
  return ret;
}

/* 
   Local Variables:
   mode:c
   indent-tabs-mode:nil
   c-basic-offset:2
   coding:utf-8
   End:
*/