Simple SquadRcon Client by Mattt(or),
Simple SquadRcon Client (with fail over) by Mattt(or),
Simple SquadRcon Client (forSquadJS) by Mattt(or),

Welcome, this is intended specifically for OWI-Squad's flavour of Rcon Server

install node.js
no other dependenices.

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Simple SquadRcon Client
Basic Implementation;
| line 69: edit port( port ), host( ip ), token( password ). ((for local connections use ip "localhost")).
| line 79: set keep alive interval ( 60000 = 1 minute ).

to run enter `node rcon.js` into console
Will write 'list query responses' to console text and 'sevrer feed' to console as warning text.
There is ZERO error checking - this is intentional!
!!! LINE 38: UNSAFE value ( >= 4 ) - this allows the buffer to potentially be read outside of a message, this is to make us more likely to find edge case errors. For SAFE operation value must be ( >= 7 ) !!!

line 12: size and id are not important, this is the hard coded 'made up' packet, no point in converting into it each time it arrives later.
line 15: 2147483647 used as flag when debugging only.
line 19: id defaults to non zero for easier debugging must be a valid positive signed 32bit value, 2 less than range max.
line 21: id + 2 allows for easier debugging plus sets up for way to avoid need to parse later, ie sudo id 33 = "current map" => read from index x to end"
line 47: is special packet? long if statement but efficient.
line 58: long messages re-assembled and sent out from here.

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Simple SquadRcon Client (with fail over)

rconWithFailover.js uncomment packetbreaker() to make 'random' bad packets 

Packet checks are;
is Special packet?
has valid size value? <= rcon spec is max 4096, Squad ignores this, using 8192 is ok for now using too large a value may result in loop as data can never fill to active a decode.
is long enough to be complete?
ends with 'null, null'?
ID is positive 32bit sInt?
Type is either 0,1,2 or 3?

if out going text is found to contain "�", this also counts as a bad packet.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Simple SquadRcon Client (forSquadJS)

rconforSquadJS.js
working draft, intended as straight swap for squadJS/core/rcon.js
Fixes buffer overflow bug etc.
Comment/swap Logger(s) and uncomment squadJsStyle() to run as stand alone test.

/* A Micro Demo in the style of SquadJS */
/* 
const squadJsStyle = async () => {
  const getCurrentMap = async () => {
    const response = await rcon.execute("ShowCurrentMap");
    const match = response.match(/^Current level is (?<level>.+), layer is (?<layer>.+)/);
    return [match.groups.level, match.groups.layer];
  };
  const rcon = new Rcon({ port: "00000", host: "0.0.0.0", password: "password" });
  setTimeout(() => rcon.disconnect(), 10000);
  await rcon.connect();
  const layers = await getCurrentMap();
  console.log(layers);
};
squadJsStyle();
*/

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Simple SquadRcon w Pass-through (forSquadJS)

rconPassThroughSqJS.js
to use with SquadJS, as per above, renane to `rcon.js`, replace SquadJS/core/rcon.js add `"passThrough": true,` to rcon options json.
ie { "passThrough": true, "host": "ip", "port": "1234", "password": "pw" }

Possible options:
"passThrough": true,
"passThroughPort": 1234,
"passThroughTimeOut": 30000,
"passThroughMaxClients": 10,
"passThroughChallenge": "password"

/* A Micro Demo in the style of SquadJS */
//Comment out line: `import Logger from "./logger.js";`
//Set rcon options

const Logger = {
  level: 1,
  verbose(type, lvl, msg, msg1 = "") {
    if (lvl > this.level) return;
    console.log(type, lvl, msg, msg1);
  },
};
const squadJsStyle = async () => {
  const getCurrentMap = async () => {
    const response = await rcon.execute("ShowCurrentMap");
    const match = response.match(/^Current level is (?<level>.+), layer is (?<layer>.+)/);
    return [match.groups.level, match.groups.layer];
  };
  const rcon = new Rcon({ port: "2114", host: "127.0.0.1", password: "password", passThrough: true, passThroughPort: "8126", passThroughTimeOut: 30000, passThroughChallenge: "password" }); // <-- SET THESE OPTIONs for demo
  try {
    await rcon.connect();
  } catch (e) {
    console.warn(e);
  }
  rcon.interval = setInterval(async () => {
    try {
      const currentMap = await getCurrentMap();
      console.log(currentMap);
    } catch (e) {
      console.warn(e);
    }
  }, 5000);
};
squadJsStyle();