/**
* get the info about a backend
*
* proxy.backend[0].
* connected_clients => clients using this backend
* address => ip:port or unix-path of to the backend
* state => int(BACKEND_STATE_UP|BACKEND_STATE_DOWN)
* type => int(BACKEND_TYPE_RW|BACKEND_TYPE_RO)
*
* @return nil or requested information
* @see backend_state_t backend_type_t
*/
static int proxy_backend_get(lua_State *L) {
network_backend_t *backend = *(network_backend_t **)luaL_checkself(L);
gsize keysize = 0;
const char *key = luaL_checklstring(L, 2, &keysize);
if (strleq(key, keysize, C("connected_clients"))) {
lua_pushinteger(L, backend->connected_clients);
} else if (strleq(key, keysize, C("dst"))) {
network_address_lua_push(L, backend->addr);
} else if (strleq(key, keysize, C("state"))) {
lua_pushinteger(L, backend->state);
} else if (strleq(key, keysize, C("type"))) {
lua_pushinteger(L, backend->type);
} else if (strleq(key, keysize, C("uuid"))) {
if (backend->uuid->len) {
lua_pushlstring(L, S(backend->uuid));
} else {
lua_pushnil(L);
}
} else if (strleq(key, keysize, C("weight"))) {
lua_pushinteger(L, backend->weight);
} else {
lua_pushnil(L);
}
return 1;
}
static int proxy_socket_get(lua_State *L) {
network_socket *sock = *(network_socket **)luaL_checkself(L);
gsize keysize = 0;
const char *key = luaL_checklstring(L, 2, &keysize);
/**
* we to split it in .client and .server here
*/
if (strleq(key, keysize, C("default_db"))) {
lua_pushlstring(L, sock->conn_attr.default_db->str, sock->conn_attr.default_db->len);
return 1;
}else if (strleq(key, keysize, C("charset_client"))) {
lua_pushlstring(L, sock->conn_attr.charset_client->str, sock->conn_attr.charset_client->len);
return 1;
}else if (strleq(key, keysize, C("charset_connection"))) {
lua_pushlstring(L, sock->conn_attr.charset_connection->str, sock->conn_attr.charset_connection->len);
return 1;
}else if (strleq(key, keysize, C("charset_results"))) {
lua_pushlstring(L, sock->conn_attr.charset_results->str, sock->conn_attr.charset_results->len);
return 1;
}else if (strleq(key, keysize, C("address"))) {
return luaL_error(L, ".address is deprecated. Use .src.name or .dst.name instead");
} else if (strleq(key, keysize, C("src"))) {
return network_address_lua_push(L, sock->src);
} else if (strleq(key, keysize, C("dst"))) {
return network_address_lua_push(L, sock->dst);
}
if (sock->response) {
if (strleq(key, keysize, C("username"))) {
lua_pushlstring(L, S(sock->response->username));
return 1;
} else if (strleq(key, keysize, C("scrambled_password"))) {
lua_pushlstring(L, S(sock->response->response));
return 1;
}
}
if (sock->challenge) { /* only the server-side has mysqld_version set */
if (strleq(key, keysize, C("mysqld_version"))) {
lua_pushinteger(L, sock->challenge->server_version);
return 1;
} else if (strleq(key, keysize, C("thread_id"))) {
lua_pushinteger(L, sock->challenge->thread_id);
return 1;
} else if (strleq(key, keysize, C("scramble_buffer"))) {
lua_pushlstring(L, S(sock->challenge->challenge));
return 1;
}
}
g_critical("%s: sock->challenge: %p, sock->response: %p (looking for %s)",
G_STRLOC,
(void *)sock->challenge,
(void *)sock->response,
key
);
lua_pushnil(L);
return 1;
}
