gameServer2/src/protocol/parser.rs
author Wuzzy <Wuzzy2@mail.ru>
Thu, 08 Mar 2018 00:46:00 +0100
changeset 13105 61076bb26cb3
parent 12147 4d7d41be1993
child 13124 1e39b8749072
permissions -rw-r--r--
SimpleMission: Set GameFlags more cleanly
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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use nom::*;
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use std::str;
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use std::str::FromStr;
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use super::messages::HWProtocolMessage;
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use super::messages::HWProtocolMessage::*;
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named!(end_of_message, tag!("\n\n"));
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named!(str_line<&[u8],   &str>, map_res!(not_line_ending, str::from_utf8));
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named!(  a_line<&[u8], String>, map!(str_line, String::from));
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named!( u8_line<&[u8],     u8>, map_res!(str_line, FromStr::from_str));
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named!(u32_line<&[u8],    u32>, map_res!(str_line, FromStr::from_str));
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named!(opt_param<&[u8], Option<String> >, opt!(map!(flat_map!(preceded!(eol, str_line), non_empty), String::from)));
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named!(basic_message<&[u8], HWProtocolMessage>, alt!(
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      do_parse!(tag!("PING") >> (Ping))
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    | do_parse!(tag!("PONG") >> (Pong))
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    | do_parse!(tag!("LIST") >> (List))
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    | do_parse!(tag!("BANLIST")        >> (BanList))
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    | do_parse!(tag!("GET_SERVER_VAR") >> (GetServerVar))
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    | do_parse!(tag!("TOGGLE_READY")   >> (ToggleReady))
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    | do_parse!(tag!("START_GAME")     >> (StartGame))
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    | do_parse!(tag!("ROUNDFINISHED")  >> (RoundFinished))
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    | do_parse!(tag!("TOGGLE_RESTRICT_JOINS")  >> (ToggleRestrictJoin))
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    | do_parse!(tag!("TOGGLE_RESTRICT_TEAMS")  >> (ToggleRestrictTeams))
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    | do_parse!(tag!("TOGGLE_REGISTERED_ONLY") >> (ToggleRegisteredOnly))
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));
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named!(one_param_message<&[u8], HWProtocolMessage>, alt!(
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      do_parse!(tag!("NICK")    >> eol >> n: a_line >> (Nick(n)))
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    | do_parse!(tag!("INFO")    >> eol >> n: a_line >> (Info(n)))
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    | do_parse!(tag!("CHAT")    >> eol >> m: a_line >> (Chat(m)))
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    | do_parse!(tag!("FOLLOW")  >> eol >> n: a_line >> (Follow(n)))
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    | do_parse!(tag!("KICK")    >> eol >> n: a_line >> (Kick(n)))
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    | do_parse!(tag!("UNBAN")   >> eol >> n: a_line >> (Unban(n)))
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    | do_parse!(tag!("EM")      >> eol >> m: a_line >> (EngineMessage(m)))
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    | do_parse!(tag!("TEAMCHAT")    >> eol >> m: a_line >> (TeamChat(m)))
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    | do_parse!(tag!("ROOM_NAME")   >> eol >> n: a_line >> (RoomName(n)))
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    | do_parse!(tag!("REMOVE_TEAM") >> eol >> n: a_line >> (RemoveTeam(n)))
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    | do_parse!(tag!("PROTO")   >> eol >> d: u32_line >> (Proto(d)))
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    | do_parse!(tag!("QUIT")   >> msg: opt_param >> (Quit(msg)))
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));
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named!(cmd_message<&[u8], HWProtocolMessage>, preceded!(tag!("CMD\n"), alt!(
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      do_parse!(tag_no_case!("STATS") >> (Stats))
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    | do_parse!(tag_no_case!("FIX")   >> (Fix))
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    | do_parse!(tag_no_case!("UNFIX") >> (Unfix))
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    | do_parse!(tag_no_case!("RESTART_SERVER") >> eol >> tag!("YES") >> (RestartServer))
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    | do_parse!(tag_no_case!("REGISTERED_ONLY") >> (ToggleServerRegisteredOnly))
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    | do_parse!(tag_no_case!("SUPER_POWER")     >> (SuperPower))
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    | do_parse!(tag_no_case!("PART")     >> eol >> m: opt_param >> (Quit(m)))
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    | do_parse!(tag_no_case!("QUIT")     >> eol >> m: opt_param >> (Part(m)))
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    | do_parse!(tag_no_case!("DELEGATE") >> eol >> n: a_line  >> (Delegate(n)))
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    | do_parse!(tag_no_case!("SAVEROOM") >> eol >> r: a_line  >> (SaveRoom(r)))
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    | do_parse!(tag_no_case!("LOADROOM") >> eol >> r: a_line  >> (LoadRoom(r)))
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    | do_parse!(tag_no_case!("DELETE")   >> eol >> r: a_line  >> (Delete(r)))
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    | do_parse!(tag_no_case!("GLOBAL")   >> eol >> m: a_line  >> (Global(m)))
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    | do_parse!(tag_no_case!("WATCH")    >> eol >> i: a_line  >> (Watch(i)))
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    | do_parse!(tag_no_case!("GREETING") >> eol >> m: a_line  >> (Greeting(m)))
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    | do_parse!(tag_no_case!("VOTE")     >> eol >> m: a_line  >> (Vote(m)))
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    | do_parse!(tag_no_case!("FORCE")    >> eol >> m: a_line  >> (ForceVote(m)))
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    | do_parse!(tag_no_case!("INFO")     >> eol >> n: a_line  >> (Info(n)))
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    | do_parse!(tag_no_case!("MAXTEAMS") >> eol >> n: u8_line >> (MaxTeams(n)))
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)));
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named!(complex_message<&[u8], HWProtocolMessage>, alt!(
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      do_parse!(tag!("PASSWORD")  >> eol >>
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                    p: a_line     >> eol >>
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                    s: a_line     >>
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                    (Password(p, s)))
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    | do_parse!(tag!("CHECKER")   >> eol >>
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                    i: u32_line   >> eol >>
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                    n: a_line     >> eol >>
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                    p: a_line     >>
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                    (Checker(i, n, p)))
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    | do_parse!(tag!("CREATE_ROOM") >> eol >>
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                    n: a_line       >>
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                    p: opt_param    >>
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                    (CreateRoom(n, p)))
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    | do_parse!(tag!("JOIN")        >> eol >>
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                    n: a_line       >>
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                    p: opt_param    >>
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                    (Join(n, p)))
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    | do_parse!(tag!("BAN")    >> eol >>
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                    n: a_line     >> eol >>
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                    r: a_line     >> eol >>
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                    t: u32_line   >>
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                    (Ban(n, r, t)))
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    | do_parse!(tag!("BAN_IP")    >> eol >>
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                    n: a_line     >> eol >>
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                    r: a_line     >> eol >>
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                    t: u32_line   >>
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                    (BanIP(n, r, t)))
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    | do_parse!(tag!("BAN_NICK")    >> eol >>
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                    n: a_line     >> eol >>
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                    r: a_line     >> eol >>
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                    t: u32_line   >>
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                    (BanNick(n, r, t)))
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));
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named!(malformed_message<&[u8], HWProtocolMessage>,
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    do_parse!(separated_list!(eol, a_line) >> (Malformed)));
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named!(empty_message<&[u8], HWProtocolMessage>,
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    do_parse!(alt!(end_of_message | eol) >> (Empty)));
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named!(message<&[u8], HWProtocolMessage>, alt!(terminated!(
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    alt!(
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          basic_message
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        | one_param_message
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        | cmd_message
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        | complex_message
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        ), end_of_message
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    )
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    | terminated!(malformed_message, end_of_message)
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    | empty_message
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    )
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);
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named!(pub extract_messages<&[u8], Vec<HWProtocolMessage> >, many0!(complete!(message)));
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#[test]
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fn parse_test() {
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    assert_eq!(message(b"PING\n\n"),          IResult::Done(&b""[..], Ping));
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    assert_eq!(message(b"START_GAME\n\n"),    IResult::Done(&b""[..], StartGame));
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    assert_eq!(message(b"NICK\nit's me\n\n"), IResult::Done(&b""[..], Nick("it's me".to_string())));
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    assert_eq!(message(b"PROTO\n51\n\n"),     IResult::Done(&b""[..], Proto(51)));
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    assert_eq!(message(b"QUIT\nbye-bye\n\n"), IResult::Done(&b""[..], Quit(Some("bye-bye".to_string()))));
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    assert_eq!(message(b"QUIT\n\n"),          IResult::Done(&b""[..], Quit(None)));
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    assert_eq!(message(b"CMD\nwatch\ndemo\n\n"), IResult::Done(&b""[..], Watch("demo".to_string())));
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    assert_eq!(message(b"BAN\nme\nbad\n77\n\n"), IResult::Done(&b""[..], Ban("me".to_string(), "bad".to_string(), 77)));
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    assert_eq!(extract_messages(b"QUIT\n1\n2\n\n"),    IResult::Done(&b""[..], vec![Malformed]));
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    assert_eq!(extract_messages(b"PING\n\nPING\n\nP"), IResult::Done(&b"P"[..], vec![Ping, Ping]));
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    assert_eq!(extract_messages(b"SING\n\nPING\n\n"),  IResult::Done(&b""[..],  vec![Malformed, Ping]));
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    assert_eq!(extract_messages(b"\n\n\n\nPING\n\n"),  IResult::Done(&b""[..],  vec![Empty, Empty, Ping]));
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    assert_eq!(extract_messages(b"\n\n\nPING\n\n"),    IResult::Done(&b""[..],  vec![Empty, Empty, Ping]));
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}