(closes issue #13564)
Reported by: mnicholson Patches: pbx_lua9.diff uploaded by mnicholson (license 96) Many thanks to Matt for his upgrade to the lua dialplan option! the Description from the bug: This patch adds a stack trace to errors encountered while executing lua extensions. The patch also handles out of memory errors reported by lua. git-svn-id: http://svn.digium.com/svn/asterisk/trunk@144681 f38db490-d61c-443f-a65b-d21fe96a405b
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@ -73,6 +73,7 @@ static int lua_autoservice_start(lua_State *L);
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static int lua_autoservice_stop(lua_State *L);
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static int lua_autoservice_status(lua_State *L);
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static int lua_check_hangup(lua_State *L);
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static int lua_error_function(lua_State *L);
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static void lua_update_registry(lua_State *L, const char *context, const char *exten, int priority);
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static void lua_push_variable_table(lua_State *L, const char *name);
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@ -716,6 +717,39 @@ static int lua_check_hangup(lua_State *L)
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return 1;
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}
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/*!
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* \brief [lua_CFunction] Handle lua errors (for access from lua, don't call
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* directly)
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*
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* \param L the lua_State to use
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*/
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static int lua_error_function(lua_State *L)
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{
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int message_index;
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/* pass number arguments right through back to asterisk*/
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if (lua_isnumber(L, -1)) {
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return 1;
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}
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/* if we are here then we have a string error message, let's attach a
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* backtrace to it */
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message_index = lua_gettop(L);
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lua_getglobal(L, "debug");
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lua_getfield(L, -1, "traceback");
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lua_remove(L, -2); /* remove the 'debug' table */
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lua_pushvalue(L, message_index);
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lua_remove(L, message_index);
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lua_pushnumber(L, 2);
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lua_call(L, 2, 1);
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return 1;
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}
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/*!
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* \brief Store the sort order of each context
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@ -1171,7 +1205,7 @@ static int matchmore(struct ast_channel *chan, const char *context, const char *
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static int exec(struct ast_channel *chan, const char *context, const char *exten, int priority, const char *callerid, const char *data)
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{
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int res;
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int res, error_func;
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lua_State *L;
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struct ast_module_user *u = ast_module_user_add(chan);
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if (!u) {
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@ -1185,8 +1219,12 @@ static int exec(struct ast_channel *chan, const char *context, const char *exten
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return -1;
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}
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lua_pushcfunction(L, &lua_error_function);
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error_func = lua_gettop(L);
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/* push the extension function onto the stack */
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if (!lua_find_extension(L, context, exten, priority, &exists, 1)) {
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lua_pop(L, 1); /* pop the debug function */
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ast_log(LOG_ERROR, "Could not find extension %s in context %s\n", exten, context);
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if (!chan) lua_close(L);
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ast_module_user_remove(u);
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@ -1198,21 +1236,26 @@ static int exec(struct ast_channel *chan, const char *context, const char *exten
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lua_pushstring(L, context);
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lua_pushstring(L, exten);
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res = lua_pcall(L, 2, 0, 0);
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res = lua_pcall(L, 2, 0, error_func);
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if (res) {
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if (res == LUA_ERRRUN) {
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res = -1;
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if (lua_isnumber(L, -1)) {
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res = lua_tointeger(L, -1);
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} else if (lua_isstring(L, -1)) {
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const char *error = lua_tostring(L, -1);
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ast_log(LOG_ERROR, "Error executing lua extension: %s\n", error);
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}
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} else if (res == LUA_ERRERR) {
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res = -1;
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ast_log(LOG_ERROR, "Error in the lua error handler (this is probably a bug in pbx_lua)\n");
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} else if (res == LUA_ERRMEM) {
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res = -1;
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ast_log(LOG_ERROR, "Memory allocation error\n");
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}
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lua_pop(L, 1);
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} else {
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res = -1;
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}
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}
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lua_remove(L, error_func);
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if (!chan) lua_close(L);
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ast_module_user_remove(u);
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return res;
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