static char *assign_uuid(struct ast_json *json_channel)
{
const char *channel_name = ast_json_string_get(ast_json_object_get(json_channel, "name"));
enum hep_uuid_type uuid_type = hepv3_get_uuid_type();
char *uuid = NULL;
if (!channel_name) {
return NULL;
}
if (uuid_type == HEP_UUID_TYPE_CALL_ID) {
struct ast_channel *chan = NULL;
char buf[128];
if (ast_begins_with(channel_name, "PJSIP")) {
chan = ast_channel_get_by_name(channel_name);
if (chan && !ast_func_read(chan, "CHANNEL(pjsip,call-id)", buf, sizeof(buf))) {
uuid = ast_strdup(buf);
}
} else if (ast_begins_with(channel_name, "SIP")) {
chan = ast_channel_get_by_name(channel_name);
if (chan && !ast_func_read(chan, "SIP_HEADER(call-id)", buf, sizeof(buf))) {
uuid = ast_strdup(buf);
}
}
ast_channel_cleanup(chan);
}
/* If we couldn't get the call-id or didn't want it, just use the channel name */
if (!uuid) {
uuid = ast_strdup(channel_name);
}
return uuid;
}
/*!
* \brief [lua_CFunction] Used to get the value of a variable or dialplan
* function (for access from lua, don't call directly)
*
* The value of the variable or function is returned. This function is the
* 'get()' function in the following example as would be seen in
* extensions.lua.
*
* \code
* channel.variable:get()
* \endcode
*/
static int lua_get_variable_value(lua_State *L)
{
struct ast_channel *chan;
char *value = NULL, *name;
char *workspace = alloca(LUA_BUF_SIZE);
int autoservice;
workspace[0] = '\0';
if (!lua_istable(L, 1)) {
lua_pushstring(L, "User probably used '.' instead of ':' for retrieving a channel variable value");
return lua_error(L);
}
lua_getfield(L, LUA_REGISTRYINDEX, "channel");
chan = lua_touserdata(L, -1);
lua_pop(L, 1);
lua_getfield(L, 1, "name");
name = ast_strdupa(lua_tostring(L, -1));
lua_pop(L, 1);
lua_getfield(L, LUA_REGISTRYINDEX, "autoservice");
autoservice = lua_toboolean(L, -1);
lua_pop(L, 1);
if (autoservice)
ast_autoservice_stop(chan);
/* if this is a dialplan function then use ast_func_read(), otherwise
* use pbx_retrieve_variable() */
if (!ast_strlen_zero(name) && name[strlen(name) - 1] == ')') {
value = ast_func_read(chan, name, workspace, LUA_BUF_SIZE) ? NULL : workspace;
} else {
pbx_retrieve_variable(chan, name, &value, workspace, LUA_BUF_SIZE, ast_channel_varshead(chan));
}
if (autoservice)
ast_autoservice_start(chan);
if (value) {
lua_pushstring(L, value);
} else {
lua_pushnil(L);
}
return 1;
}
