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/*
* Copyright (C) 2016 "IoT.bzh"
* Author "Manuel Bachmann"
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "media-api.h"
/* -------------- MEDIA RYGEL IMPLEMENTATION ---------------- */
/* --- PUBLIC FUNCTIONS --- */
PUBLIC unsigned char _rygel_init (mediaCtxHandleT *ctx) {
GMainContext *loop;
GUPnPContext *context;
GUPnPControlPoint *control_point;
struct timeval tv_start, tv_now;
context = gupnp_context_new (NULL, NULL, 0, NULL);
control_point = gupnp_control_point_new (context, URN_MEDIA_SERVER);
handler_cb = g_signal_connect (control_point, "device-proxy-available",
G_CALLBACK (_rygel_device_cb), ctx);
/* start searching for servers */
gssdp_resource_browser_set_active (GSSDP_RESOURCE_BROWSER (control_point), TRUE);
loop = g_main_context_default ();
/* 5 seconds should be sufficient to find Rygel */
gettimeofday (&tv_start, NULL);
gettimeofday (&tv_now, NULL);
while (tv_now.tv_sec - tv_start.tv_sec <= 5) {
g_main_context_iteration (loop, FALSE);
if (ctx->media_server)
break;
gettimeofday (&tv_now, NULL);
}
/* fail if we found no server */
if (!ctx->media_server)
return -1;
dev_ctx[client_count]->loop = loop;
dev_ctx[client_count]->context = context;
client_count++;
return 0;
}
PUBLIC void _rygel_free (mediaCtxHandleT *ctx) {
dev_ctx_T *dev_ctx_c = (dev_ctx_T*)ctx->media_server;
client_count--;
g_main_context_unref (dev_ctx_c->loop);
dev_ctx_c->loop = NULL;
dev_ctx_c->context = NULL;
dev_ctx_c->device_info = NULL;
dev_ctx_c->content_dir = NULL;
if (dev_ctx_c->content_res)
free (dev_ctx_c->content_res);
dev_ctx_c->content_res = NULL;
}
PUBLIC char* _rygel_list (mediaCtxHandleT *ctx) {
dev_ctx_T *dev_ctx_c = (dev_ctx_T*)ctx->media_server;
GUPnPServiceProxy *content_dir_proxy;
struct timeval tv_start, tv_now;
if (dev_ctx_c->content_res)
free (dev_ctx_c->content_res);
dev_ctx_c->content_res = NULL;
content_dir_proxy = GUPNP_SERVICE_PROXY (dev_ctx_c->content_dir);
gupnp_service_proxy_begin_action (content_dir_proxy, "Browse", _rygel_content_cb, dev_ctx_c,
"ObjectID", G_TYPE_STRING, "Filesystem",
"BrowseFlag", G_TYPE_STRING, "BrowseDirectChildren",
"Filter", G_TYPE_STRING, "@childCount",
"StartingIndex", G_TYPE_UINT, 0,
"RequestedCount", G_TYPE_UINT, 64,
"SortCriteria", G_TYPE_STRING, "",
NULL);
gettimeofday (&tv_start, NULL);
gettimeofday (&tv_now, NULL);
while (tv_now.tv_sec - tv_start.tv_sec <= 5) {
g_main_context_iteration (dev_ctx_c->loop, FALSE);
if (dev_ctx_c->content_res)
break;
gettimeofday (&tv_now, NULL);
}
return dev_ctx_c->content_res;
}
/* ---- LOCAL CALLBACK FUNCTIONS ---- */
STATIC void _rygel_device_cb (GUPnPControlPoint *point, GUPnPDeviceProxy *proxy,
gpointer data) {
mediaCtxHandleT *ctx = (mediaCtxHandleT*)data;
GUPnPDeviceInfo *device_info;
GUPnPServiceInfo *content_dir;
const char *device_name;
device_info = GUPNP_DEVICE_INFO (proxy);
device_name = gupnp_device_info_get_model_name (device_info);
content_dir = gupnp_device_info_get_service (device_info, URN_CONTENT_DIR);
if (strcmp (device_name, "Rygel") != 0)
return;
if (!content_dir)
return;
/* we have found Rygel ; stop looking for it... */
g_signal_handler_disconnect (point, handler_cb);
/* allocate the global array if it has not been not done */
if (!dev_ctx)
dev_ctx = (dev_ctx_T**) malloc (sizeof(dev_ctx_T));
else
dev_ctx = (dev_ctx_T**) realloc (dev_ctx, (client_count+1)*sizeof(dev_ctx_T));
/* create an element for the client in the global array */
dev_ctx[client_count] = (dev_ctx_T*) malloc (sizeof(dev_ctx_T));
dev_ctx[client_count]->device_info = device_info;
dev_ctx[client_count]->content_dir = content_dir;
/* make the client context aware of it */
ctx->media_server = (void*)dev_ctx[client_count];
}
STATIC void _rygel_content_cb (GUPnPServiceProxy *content_dir, GUPnPServiceProxyAction *action,
gpointer data) {
dev_ctx_T *dev_ctx_c = (dev_ctx_T*)data;
GUPnPServiceProxy *content_dir_proxy = GUPNP_SERVICE_PROXY (content_dir);
GError *error;
char *result;
guint32 number_returned;
guint32 total_matches;
char *found;
char subid[33];
gupnp_service_proxy_end_action (content_dir, action, &error,
"Result", G_TYPE_STRING, &result,
"NumberReturned", G_TYPE_UINT, &number_returned,
"TotalMatches", G_TYPE_UINT, &total_matches,
NULL);
if (number_returned == 0)
return;
if (number_returned == 1) {
found = strstr (result, "id=\"");
found += 4;
strncpy (subid, found, 32); subid[32] = '\0';
gupnp_service_proxy_begin_action (content_dir_proxy, "Browse", _rygel_content_cb, dev_ctx_c,
"ObjectID", G_TYPE_STRING, subid,
"BrowseFlag", G_TYPE_STRING, "BrowseDirectChildren",
"Filter", G_TYPE_STRING, "@childCount",
"StartingIndex", G_TYPE_UINT, 0,
"RequestedCount", G_TYPE_UINT, 64,
"SortCriteria", G_TYPE_STRING, "",
NULL);
return;
}
if (number_returned > 1)
dev_ctx_c->content_res = strdup (result);
}
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