/* Called when activating a source. Verifies that the source count is not
* exceeded and applies any initial parameters.
*/
int connection_complete_source (source_t *source, int response)
{
ice_config_t *config;
global_lock ();
DEBUG1 ("sources count is %d", global.sources);
config = config_get_config();
if (global.sources < config->source_limit)
{
const char *contenttype;
const char *expectcontinue;
mount_proxy *mountinfo;
format_type_t format_type;
/* setup format handler */
contenttype = httpp_getvar (source->parser, "content-type");
if (contenttype != NULL)
{
format_type = format_get_type (contenttype);
if (format_type == FORMAT_ERROR)
{
config_release_config();
global_unlock();
if (response)
{
client_send_403 (source->client, "Content-type not supported");
source->client = NULL;
}
WARN1("Content-type \"%s\" not supported, dropping source", contenttype);
return -1;
}
}
else
{
WARN0("No content-type header, falling back to backwards compatibility mode "
"for icecast 1.x relays. Assuming content is mp3.");
format_type = FORMAT_TYPE_GENERIC;
}
if (format_get_plugin (format_type, source) < 0)
{
global_unlock();
config_release_config();
if (response)
{
client_send_403 (source->client, "internal format allocation problem");
source->client = NULL;
}
WARN1 ("plugin format failed for \"%s\"", source->mount);
return -1;
}
/* For PUT support we check for 100-continue and send back a 100 to stay in spec */
expectcontinue = httpp_getvar (source->parser, "expect");
if (expectcontinue != NULL)
{
#ifdef HAVE_STRCASESTR
if (strcasestr (expectcontinue, "100-continue") != NULL)
#else
WARN0("OS doesn't support case insenestive substring checks...");
if (strstr (expectcontinue, "100-continue") != NULL)
#endif
{
client_send_100 (source->client);
}
}
global.sources++;
stats_event_args (NULL, "sources", "%d", global.sources);
global_unlock();
source->running = 1;
mountinfo = config_find_mount (config, source->mount, MOUNT_TYPE_NORMAL);
source_update_settings (config, source, mountinfo);
config_release_config();
slave_rebuild_mounts();
source->shutdown_rwlock = &_source_shutdown_rwlock;
DEBUG0 ("source is ready to start");
return 0;
}
WARN1("Request to add source when maximum source limit "
"reached %d", global.sources);
global_unlock();
config_release_config();
if (response)
{
client_send_403 (source->client, "too many sources connected");
source->client = NULL;
}
return -1;
}
/* This does the actual connection for a relay. A thread is
* started off if a connection can be acquired
*/
static void *start_relay_stream (void *arg)
{
relay_server *relay = arg;
source_t *src = relay->source;
client_t *client;
ICECAST_LOG_INFO("Starting relayed source at mountpoint \"%s\"", relay->localmount);
do
{
client = open_relay_connection (relay);
if (client == NULL)
continue;
src->client = client;
src->parser = client->parser;
src->con = client->con;
if (connection_complete_source (src, 0) < 0)
{
ICECAST_LOG_INFO("Failed to complete source initialisation");
client_destroy (client);
src->client = NULL;
continue;
}
stats_event_inc(NULL, "source_relay_connections");
stats_event (relay->localmount, "source_ip", client->con->ip);
source_main (relay->source);
if (relay->on_demand == 0)
{
/* only keep refreshing YP entries for inactive on-demand relays */
yp_remove (relay->localmount);
relay->source->yp_public = -1;
relay->start = time(NULL) + 10; /* prevent busy looping if failing */
slave_update_all_mounts();
}
/* we've finished, now get cleaned up */
relay->cleanup = 1;
slave_rebuild_mounts();
return NULL;
} while (0); /* TODO allow looping through multiple servers */
if (relay->source->fallback_mount)
{
source_t *fallback_source;
ICECAST_LOG_DEBUG("failed relay, fallback to %s", relay->source->fallback_mount);
avl_tree_rlock(global.source_tree);
fallback_source = source_find_mount(relay->source->fallback_mount);
if (fallback_source != NULL)
source_move_clients(relay->source, fallback_source);
avl_tree_unlock(global.source_tree);
}
source_clear_source(relay->source);
/* cleanup relay, but prevent this relay from starting up again too soon */
thread_mutex_lock(&_slave_mutex);
thread_mutex_lock(&(config_locks()->relay_lock));
relay->source->on_demand = 0;
relay->start = time(NULL) + max_interval;
relay->cleanup = 1;
thread_mutex_unlock(&(config_locks()->relay_lock));
thread_mutex_unlock(&_slave_mutex);
return NULL;
}
/* Called when activating a source. Verifies that the source count is not
* exceeded and applies any initial parameters.
*/
int connection_complete_source (source_t *source, int response)
{
ice_config_t *config;
global_lock ();
DEBUG1 ("sources count is %d", global.sources);
config = config_get_config();
if (global.sources < config->source_limit)
{
const char *contenttype;
mount_proxy *mountinfo;
format_type_t format_type;
/* setup format handler */
contenttype = httpp_getvar (source->parser, "content-type");
if (contenttype != NULL)
{
format_type = format_get_type (contenttype);
if (format_type == FORMAT_ERROR)
{
config_release_config();
global_unlock();
if (response)
{
client_send_403 (source->client, "Content-type not supported");
source->client = NULL;
}
WARN1("Content-type \"%s\" not supported, dropping source", contenttype);
return -EINPROGRESS;
}
}
else
{
WARN0("No content-type header, falling back to backwards compatibility mode "
"for icecast 1.x relays. Assuming content is mp3.");
format_type = FORMAT_TYPE_GENERIC;
}
if (format_get_plugin (format_type, source) < 0)
{
global_unlock();
config_release_config();
if (response)
{
client_send_403 (source->client, "internal format allocation problem");
source->client = NULL;
}
WARN1 ("plugin format failed for \"%s\"", source->mount);
return -1;
}
global.sources++;
stats_event_args (NULL, "sources", "%d", global.sources);
global_unlock();
source->running = 1;
mountinfo = config_find_mount (config, source->mount);
source_update_settings (config, source, mountinfo);
config_release_config();
slave_rebuild_mounts();
source->shutdown_rwlock = &_source_shutdown_rwlock;
DEBUG0 ("source is ready to start");
return 0;
}
WARN1("Request to add source when maximum source limit "
"reached %d", global.sources);
global_unlock();
config_release_config();
if (response)
{
client_send_403 (source->client, "too many sources connected");
source->client = NULL;
}
return -1;
}
