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@ -9,8 +9,9 @@ use std::io::Cursor;
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use serde::{Serialize, Deserialize};
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use std::io::prelude::*;
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use std::io::BufReader;
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use std::fs::File;
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use sha2::Digest;
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use sha2::Sha256;
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use std::net::TcpStream;
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use std::sync::Mutex;
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@ -217,6 +218,17 @@ struct BackendPacket {
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}
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impl BackendPacket {
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fn new(header: u32, timestamp: f64, msg_type: u32, seq_num: u64, data: Vec<u8>) -> BackendPacket {
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return BackendPacket{
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header,
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timestamp,
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msg_type,
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seq_num,
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size: data.len().try_into().unwrap(),
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data,
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};
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}
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fn from_bytes(bytes: Vec<u8>) -> Option<BackendPacket> {
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if bytes.len() < BACKEND_PACKET_HEADER_SIZE {
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return None;
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@ -232,7 +244,7 @@ impl BackendPacket {
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});
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}
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fn to_bytes(self: BackendPacket) -> Vec<u8> {
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fn as_bytes(self: &BackendPacket) -> Vec<u8> {
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let mut bytes = Vec::new();
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bytes.extend(self.header.to_le_bytes());
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@ -240,7 +252,7 @@ impl BackendPacket {
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bytes.extend(self.msg_type.to_le_bytes());
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bytes.extend(self.seq_num.to_le_bytes());
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bytes.extend(self.size.to_le_bytes());
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bytes.extend(self.data);
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bytes.extend(self.data.clone());
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return bytes;
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}
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@ -261,6 +273,25 @@ struct ConnectMsg {
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}
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impl ConnectMsg {
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fn from_welcome(welcome: ConnectMsg, password: &str, uuid: [u8; 16], client_name: [u8; 32]) -> ConnectMsg {
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let mut hasher = Sha256::new();
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hasher.update(welcome.pass_hash);
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hasher.update(password);
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let result = hasher.finalize();
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return ConnectMsg{
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version: welcome.version,
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uuid,
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last_notice_id: welcome.last_notice_id,
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username: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
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pass_hash: result.try_into().unwrap(),
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pw_valid: welcome.pw_valid,
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state_valid: welcome.state_valid,
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client_name,
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server_time_zone: welcome.server_time_zone,
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};
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}
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fn from_bytes(bytes: Vec<u8>) -> Option<ConnectMsg> {
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if bytes.len() < CONNECT_MSG_LEN {
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return None;
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@ -279,7 +310,7 @@ impl ConnectMsg {
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});
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}
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fn to_bytes(self: ConnectMsg) -> Vec<u8> {
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fn as_bytes(self: &ConnectMsg) -> Vec<u8> {
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let mut bytes = Vec::new();
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bytes.extend(self.version.to_le_bytes());
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@ -339,18 +370,33 @@ impl TMClient {
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let data = incoming[0..read].to_vec();
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match BackendPacket::from_bytes(data) {
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Some(packet) => {
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println!("Packet: {:?}", packet);
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match packet.msg_type {
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2 => {
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match ConnectMsg::from_bytes(packet.data) {
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Some(welcome_msg) => println!("Welcome msg: {:?}", welcome_msg),
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None => println!("Failed to parse wlecome msg"),
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Some(welcome_msg) => {
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println!("Welcome msg: {:?}", welcome_msg);
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if welcome_msg.pw_valid == 0 {
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let uuid = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16];
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let client_name = [116, 101, 115, 116, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
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let connect_response = ConnectMsg::from_welcome(welcome_msg, "", uuid, client_name);
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let response = BackendPacket::new(packet.header, packet.timestamp, packet.msg_type, packet.seq_num, connect_response.as_bytes());
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match stream.write(&response.as_bytes()) {
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Err(error) => println!("Send error: {:?}", error),
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Ok(sent) => println!("Sent {} bytes", sent),
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}
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} else {
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println!("Connected to TM backend!");
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}
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},
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None => println!("Failed to parse welcome msg"),
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}
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},
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_ => println!("Unhandled message type: {}", packet.msg_type),
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}
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},
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None => println!("Failed to parse BackendPacket"),
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None => {
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panic!("Failed to parse BackendPacket({}): {}", read, String::from_utf8_lossy(&incoming));
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}
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}
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},
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Err(error) => println!("Error: {}", error),
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