1 /* by Qball
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation; either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
16 */
18 #
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <glib.h>
24 #include "ncmpc.h"
26 #ifdef ENABLE_LYRICS_SCREEN
28 #include <curl/curl.h>
29 #include "easy_download.h"
31 static size_t write_data(void *buffer, size_t size,
32 size_t nmemb, easy_download_struct *dld)
33 {
34 if(dld->data == NULL)
35 {
36 dld->size = 0;
37 }
38 dld->data = g_realloc(dld->data,(gulong)(size*nmemb+dld->size));
40 memset(&(dld->data)[dld->size], '\0', (size*nmemb));
41 memcpy(&(dld->data)[dld->size], buffer, size*nmemb);
43 dld->size += size*nmemb;
44 if(dld->size >= dld->max_size && dld->max_size > 0)
45 {
46 return 0;
47 }
48 return size*nmemb;
49 }
51 int easy_download(char *url,easy_download_struct *dld,
52 curl_progress_callback cb)
53 {
54 CURL *curl = NULL;
55 int res;
56 if(!dld) return 0;
57 easy_download_clean(dld);
58 /* initialize curl */
59 curl = curl_easy_init();
60 if(!curl) return 0;
61 /* set uri */
62 curl_easy_setopt(curl, CURLOPT_URL, url);
63 /* set callback data */
64 curl_easy_setopt(curl, CURLOPT_WRITEDATA, dld);
65 /* set callback function */
66 curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
67 curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
68 curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, cb);
69 /* run */
70 res = curl_easy_perform(curl);
71 /* cleanup */
72 curl_easy_cleanup(curl);
73 if(!res)
74 {
75 return 1;
76 }
77 if(dld->data) g_free(dld->data);
78 return 0;
79 }
81 void easy_download_clean(easy_download_struct *dld)
82 {
83 if(dld->data)g_free(dld->data);
84 dld->data = NULL;
85 dld->size = 0;
86 dld->max_size = -1;
87 }
89 #endif