+/*
+ * Even if writing to FILE* is supported by libcurl by default,
+ * it seems that it is non-portable (win32 DLL specific).
+ *
+ * So, we provide our own trivial CURLOPT_WRITEFUNCTION.
+ */
+static size_t curl_write_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
+{
+ return fwrite(ptr, size, nmemb, stream);
+}
+
+static gchar *get_cookie_file(gboolean init)
+{
+ static gchar *cookie_file = NULL;
+ static GMutex *mutex = NULL;
+
+ if (init) { /* to make sure it's thread safe */
+ mutex = g_mutex_new();
+ static gchar *cookie_fn = "cookies.txt";
+ const gchar *viking_dir = a_get_viking_dir();
+ cookie_file = g_build_filename(viking_dir, cookie_fn, NULL);
+ g_unlink(cookie_file);
+ return NULL;
+ }
+
+ g_assert(cookie_file != NULL);
+
+ g_mutex_lock(mutex);
+ if (g_file_test(cookie_file, G_FILE_TEST_EXISTS) == FALSE) { /* file not there */
+ gchar * name_tmp = NULL;
+ FILE * out_file = tmpfile();
+ if (out_file == NULL) {
+ // Something wrong with previous call (unsuported?)
+ name_tmp = g_strdup_printf("%s.tmp", cookie_file);
+ out_file = g_fopen(name_tmp, "w+b");
+ }
+ CURLcode res;
+ CURL *curl = curl_easy_init();
+ if (vik_verbose)
+ curl_easy_setopt ( curl, CURLOPT_VERBOSE, 1 );
+ curl_easy_setopt(curl, CURLOPT_URL, "http://maps.google.com/"); /* google.com sets "PREF" cookie */
+ curl_easy_setopt ( curl, CURLOPT_FILE, out_file );
+ curl_easy_setopt ( curl, CURLOPT_WRITEFUNCTION, curl_write_func);
+ curl_easy_setopt(curl, CURLOPT_COOKIEJAR, cookie_file);
+ res = curl_easy_perform(curl);
+ if (res != CURLE_OK) {
+ g_warning(_("%s() Curl perform failed: %s"), __PRETTY_FUNCTION__,
+ curl_easy_strerror(res));
+ g_unlink(cookie_file);
+ }
+ curl_easy_cleanup(curl);
+ fclose(out_file);
+ out_file = NULL;
+ if (name_tmp != NULL) {
+ g_remove(name_tmp);
+ g_free(name_tmp);
+ name_tmp = NULL;
+ }
+ }
+ g_mutex_unlock(mutex);
+
+ return(cookie_file);
+}
+
+/* This should to be called from main() to make sure thread safe */
+void curl_download_init()
+{
+ curl_global_init(CURL_GLOBAL_ALL);
+ get_cookie_file(TRUE);
+}
+
+int curl_download_uri ( const char *uri, FILE *f, DownloadOptions *options )