Tribufu/rust-gamedig
1
0
Fork 0
mirror of https://github.com/Tribufu/rust-gamedig synced 2026-08-20 04:11:06 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Better, faster and stronger errors.

Browse source
This commit is contained in:
CosminPerRam 2022-11-24 23:38:51 +02:00
parent b988b51cff
commit 304b8340d2
7 changed files with 75 additions and 69 deletions
Download patch file Download diff file Expand all files Collapse all files

15
src/protocols/minecraft/protocol/legacy_v1_4.rs
View file

@ -5,6 +5,7 @@ use crate::protocols::minecraft::protocol::legacy_v1_6::LegacyV1_6;
use crate::protocols::types::TimeoutSettings;
use crate::socket::{Socket, TcpSocket};
use crate::utils::buffer::{get_string_utf16_be, get_u16_be, get_u8};
use crate::utils::error_by_expected_size;
pub struct LegacyV1_4 {
socket: TcpSocket
@ -31,13 +32,11 @@ impl LegacyV1_4 {
let mut pos = 0;
if get_u8(&buf, &mut pos)? != 0xFF {
return Err(GDError::PacketBad("Expected 0xFF".to_string()));
return Err(GDError::ProtocolRule("Expected 0xFF at the begin of the packet."));
}
let length = get_u16_be(&buf, &mut pos)? * 2;
if buf.len() != (length + 3) as usize { //+ 3 because of the first byte and the u16
return Err(GDError::PacketBad("Not right size".to_string()));
}
error_by_expected_size((length + 3) as usize, buf.len())?;
if LegacyV1_6::is_protocol(&buf, &mut pos)? {
return LegacyV1_6::get_response(&buf, &mut pos);
@ -46,15 +45,13 @@ impl LegacyV1_4 {
let packet_string = get_string_utf16_be(&buf, &mut pos)?;
let split: Vec<&str> = packet_string.split("§").collect();
if split.len() != 3 {
return Err(GDError::PacketBad("Not right size".to_string()));
}
error_by_expected_size(3, split.len())?;
let description = split[0].to_string();
let online_players = split[1].parse()
.map_err(|_| GDError::PacketBad("Expected int".to_string()))?;
.map_err(|_| GDError::PacketBad("Failed to parse to expected int."))?;
let max_players = split[2].parse()
.map_err(|_| GDError::PacketBad("Expected int".to_string()))?;
.map_err(|_| GDError::PacketBad("Failed to parse to expected int."))?;
Ok(Response {
version_name: "1.4+".to_string(),