rust/hedgewars-server/src/server/handlers/loggingin.rs
author alfadur <mail@none>
Wed, 06 Feb 2019 22:29:02 +0300
changeset 14711 f61ce544d436
parent 14707 9f98086de1b6
child 14714 6a2e13e36b7f
permissions -rw-r--r--
Server action refactoring part N of N
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use mio;
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use crate::{
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    protocol::messages::{HWProtocolMessage, HWServerMessage::*},
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    server::{client::HWClient, core::HWServer, coretypes::ClientId},
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    utils::is_name_illegal,
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};
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use log::*;
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#[cfg(feature = "official-server")]
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use openssl::sha::sha1;
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use std::fmt::{Formatter, LowerHex};
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#[derive(PartialEq)]
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struct Sha1Digest([u8; 20]);
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impl LowerHex for Sha1Digest {
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    fn fmt(&self, f: &mut Formatter) -> Result<(), std::fmt::Error> {
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        for byte in &self.0 {
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            write!(f, "{:02x}", byte)?;
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        }
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        Ok(())
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    }
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}
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#[cfg(feature = "official-server")]
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fn get_hash(client: &HWClient, salt1: &str, salt2: &str) -> Sha1Digest {
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    let s = format!(
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        "{}{}{}{}{}",
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        salt1, salt2, client.web_password, client.protocol_number, "!hedgewars"
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    );
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    Sha1Digest(sha1(s.as_bytes()))
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}
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pub fn handle(
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    server: &mut HWServer,
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    client_id: ClientId,
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    response: &mut super::Response,
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    message: HWProtocolMessage,
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) {
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    match message {
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        HWProtocolMessage::Nick(nick) => {
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            let client = &mut server.clients[client_id];
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            debug!("{} {}", nick, is_name_illegal(&nick));
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            if client.room_id != None {
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                unreachable!()
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            } else if !client.nick.is_empty() {
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                response.add(Error("Nickname already provided.".to_string()).send_self());
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            } else if is_name_illegal(&nick) {
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                super::common::remove_client(server, response, "Illegal nickname! Nicknames must be between 1-40 characters long, must not have a trailing or leading space and must not have any of these characters: $()*+?[]^{|}".to_string())
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            } else {
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                client.nick = nick.clone();
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                response.add(Nick(nick).send_self());
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                if client.protocol_number > 0 {
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                    super::common::process_login(server, response);
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                }
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            }
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        }
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        HWProtocolMessage::Proto(proto) => {
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            let client = &mut server.clients[client_id];
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            if client.protocol_number != 0 {
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                response.add(Error("Protocol already known.".to_string()).send_self());
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            } else if proto == 0 {
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                response.add(Error("Bad number.".to_string()).send_self());
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            } else {
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                client.protocol_number = proto;
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                response.add(Proto(proto).send_self());
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                if client.nick != "" {
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                    super::common::process_login(server, response);
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                }
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            }
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        }
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        #[cfg(feature = "official-server")]
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        HWProtocolMessage::Password(hash, salt) => {
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            let c = &server.clients[client_id];
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            let client_hash = get_hash(c, &salt, &c.server_salt);
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            let server_hash = get_hash(c, &c.server_salt, &salt);
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            if client_hash == server_hash {
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                response.add(ServerAuth(format!("{:x}", server_hash)).send_self());
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            //TODO enter lobby
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            } else {
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                super::common::remove_client(server, response, "Authentication failed".to_string())
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            }
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        }
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        #[cfg(feature = "official-server")]
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        HWProtocolMessage::Checker(protocol, nick, password) => {
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            let c = &mut server.clients[client_id];
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            c.nick = nick;
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            c.web_password = password;
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            c.set_is_checker(true);
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        }
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        _ => warn!("Incorrect command in logging-in state"),
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    }
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}