2 * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 * http://labs.metacarta.com/wms/vmap0?
27 * EXCEPTIONS=application/vnd.ogc.se_inimage&
36 * http://www.nasa.network.com/elev?
43 * BBOX=-180,-90,180,90&
48 * http://www.nasa.network.com/elev?
55 * BBOX=-180,-90,180,90&
56 * FORMAT=application/bil32&
67 static gchar *_make_uri(GisWms *wms, GisTile *tile)
69 return g_strdup_printf(
92 static void _soup_chunk_cb(SoupMessage *message, SoupBuffer *chunk, gpointer _file)
95 if (!SOUP_STATUS_IS_SUCCESSFUL(message->status_code)) {
96 g_warning("GisWms: soup_chunk_cb - soup failed with %d", message->status_code);
99 goffset total = soup_message_headers_get_content_length(message->response_headers);
100 if (fwrite(chunk->data, chunk->length, 1, file) != 1)
101 g_warning("GisWms: soup_chunk_cb - eror writing data");
104 char *gis_wms_make_local(GisWms *self, GisTile *tile)
107 gchar *tile_path = gis_tile_get_path(tile);
108 gchar *path = g_strdup_printf("%s/%s/%s%s%s",
109 g_get_user_cache_dir(), PACKAGE,
110 self->cache_prefix, tile_path, self->cache_ext);
113 /* Return if it already exists */
114 if (g_file_test(path, G_FILE_TEST_EXISTS))
117 /* Open temp file for writing */
118 gchar *tmp_path = g_strconcat(path, ".part", NULL);
119 gchar *dirname = g_path_get_dirname(tmp_path);
120 g_mkdir_with_parents(dirname, 0755);
122 FILE *file = fopen(tmp_path, "a");
125 gchar *uri = _make_uri(self, tile);
126 g_debug("GisWms: make_local - fetching %s", uri);
127 SoupMessage *message = soup_message_new("GET", uri);
128 g_signal_connect(message, "got-chunk", G_CALLBACK(_soup_chunk_cb), file);
129 soup_message_headers_set_range(message->request_headers, ftell(file), -1);
130 int status = soup_session_send_message(self->soup, message);
131 if (!SOUP_STATUS_IS_SUCCESSFUL(message->status_code))
132 g_warning("GisWms: make_local - soup failed with %d", message->status_code);
137 rename(tmp_path, path);
143 gchar *uri_prefix, gchar *uri_layer, gchar *uri_format,
144 gchar *cache_prefix, gchar *cache_ext,
145 gint width, gint height)
147 GisWms *self = g_new0(GisWms, 1);
148 self->uri_prefix = uri_prefix;
149 self->uri_layer = uri_layer;
150 self->uri_format = uri_format;
151 self->cache_prefix = cache_prefix;
152 self->cache_ext = cache_ext;
154 self->height = height;
155 self->soup = soup_session_sync_new();
159 void gis_wms_free(GisWms *self)
161 g_object_unref(self->soup);