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## Description This adds some validation for incoming inventory packets that makes it so that you can't just spawn items by sending malicious packets. It adds type 1 and type 2 validations as outlined in #292. This also adds some new helpers, `InventoryWindow` and `InventoryWindowMut`. fixes #292 <details> <summary>Playground</summary> ```rust use valence::client::{default_event_handler, despawn_disconnected_clients}; use valence::prelude::event::PlayerInteractBlock; use valence::prelude::*; #[allow(unused_imports)] use crate::extras::*; const SPAWN_Y: i32 = 64; const CHEST_POS: [i32; 3] = [0, SPAWN_Y + 1, 3]; pub fn build_app(app: &mut App) { app.add_plugin(ServerPlugin::new(()).with_connection_mode(ConnectionMode::Offline)) .add_startup_system(setup) .add_system(default_event_handler.in_schedule(EventLoopSchedule)) .add_system(init_clients) .add_system(despawn_disconnected_clients) .add_systems((toggle_gamemode_on_sneak, open_chest).in_schedule(EventLoopSchedule)); } fn setup(mut commands: Commands, server: Res<Server>) { let mut instance = server.new_instance(DimensionId::default()); for z in -5..5 { for x in -5..5 { instance.insert_chunk([x, z], Chunk::default()); } } for z in -25..25 { for x in -25..25 { instance.set_block([x, SPAWN_Y, z], BlockState::GRASS_BLOCK); } } instance.set_block(CHEST_POS, BlockState::CHEST); commands.spawn(instance); let mut inventory = Inventory::new(InventoryKind::Generic9x3); inventory.set_slot(0, ItemStack::new(ItemKind::Apple, 100, None)); inventory.set_slot(1, ItemStack::new(ItemKind::Diamond, 40, None)); inventory.set_slot(2, ItemStack::new(ItemKind::Diamond, 30, None)); commands.spawn(inventory); } fn init_clients( mut clients: Query<(&mut Position, &mut Location, &mut Inventory), Added<Client>>, instances: Query<Entity, With<Instance>>, ) { for (mut pos, mut loc, mut inv) in &mut clients { pos.0 = [0.5, SPAWN_Y as f64 + 1.0, 0.5].into(); loc.0 = instances.single(); inv.set_slot(24, ItemStack::new(ItemKind::Apple, 100, None)); inv.set_slot(25, ItemStack::new(ItemKind::Apple, 10, None)); } } // Add new systems here! fn open_chest( mut commands: Commands, inventories: Query<Entity, (With<Inventory>, Without<Client>)>, mut events: EventReader<PlayerInteractBlock>, ) { let Ok(inventory) = inventories.get_single() else { return; }; for event in events.iter() { if event.position != CHEST_POS.into() { continue; } let open_inventory = OpenInventory::new(inventory); commands.entity(event.client).insert(open_inventory); } } ``` </details> ## Test Plan Steps: 1. `cargo test` --------- Co-authored-by: Ryan Johnson <ryanj00a@gmail.com> |
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