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rlgwebd: use some newer Javascript features.

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This commit is contained in:
John "Elwin" Edwards 2020-04-03 15:15:02 -04:00
parent 9004afebdc
commit c38fb5d107
1 changed files with 28 additions and 26 deletions
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54
rlgwebd
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@ -1,17 +1,21 @@
#!/usr/bin/env node #!/usr/bin/env node
var http = require('http'); const http = require('http');
var https = require('https'); const https = require('https');
var net = require('net'); const net = require('net');
var url = require('url'); const url = require('url');
var path = require('path'); const path = require('path');
var fs = require('fs'); const fs = require('fs');
var events = require('events'); const events = require('events');
var child_process = require('child_process'); const child_process = require('child_process');
// Dependencies // Dependencies
var posix = require("posix"); const posix = require("posix");
var pty = require("node-pty"); const pty = require("node-pty");
var WebSocketServer = require("websocket").server; const WebSocketServer = require("websocket").server;
const errorcodes = [ "Generic Error", "Not logged in", "Invalid data",
"Login failed", "Already playing", "Game launch failed",
"Server shutting down", "Game not in progress" ];
/* Default options */ /* Default options */
var rlgwebd_options = { var rlgwebd_options = {
@ -23,12 +27,12 @@ var rlgwebd_options = {
}; };
/* Read configuration from a file */ /* Read configuration from a file */
var config_file = "/etc/rlgwebd.conf"; const config_file = "/etc/rlgwebd.conf";
var config_lines = read_or_die(config_file, "Configuration file").toString().split('\n'); var config_lines = read_or_die(config_file, "Configuration file").toString().split('\n');
for (var i = 0; i < config_lines.length; i++) { for (let conf_line of config_lines) {
if (config_lines[i].length > 0 && config_lines[i][0] != '#') { if (conf_line.length > 0 && conf_line[0] != '#') {
var config_fields = config_lines[i].split('='); var config_fields = conf_line.split('=');
if (config_fields.length < 2) if (config_fields.length < 2)
continue; continue;
var option_name = config_fields[0].trim(); var option_name = config_fields[0].trim();
@ -43,13 +47,13 @@ if ("domain_name" in rlgwebd_options && "keyfile" in rlgwebd_options &&
"certfile" in rlgwebd_options) "certfile" in rlgwebd_options)
rlgwebd_options["use_https"] = true; rlgwebd_options["use_https"] = true;
var clearbufs = [ const clearbufs = [
Buffer.from([27, 91, 72, 27, 91, 50, 74]), // xterm: CSI H CSI 2J Buffer.from([27, 91, 72, 27, 91, 50, 74]), // xterm: CSI H CSI 2J
Buffer.from([27, 91, 72, 27, 91, 74]) // screen: CSI H CSI J Buffer.from([27, 91, 72, 27, 91, 74]) // screen: CSI H CSI J
]; ];
/* Data on the games available. */ /* Data on the games available. */
var games = { const games = {
"rogue3": { "rogue3": {
"name": "Rogue V3", "name": "Rogue V3",
"uname": "rogue3", "uname": "rogue3",
@ -397,9 +401,9 @@ DglSession.prototype.handledata = function (err, n, buf) {
/* Process the data */ /* Process the data */
this.framepush(buf); this.framepush(buf);
var wmsg = JSON.stringify({"t": "d", "d": buf.toString("hex")}); var wmsg = JSON.stringify({"t": "d", "d": buf.toString("hex")});
for (var i = 0; i < this.watchers.length; i++) { for (let watcher of this.watchers) {
if (this.watchers[i].connected) if (watcher.connected)
this.watchers[i].sendUTF(wmsg); watcher.sendUTF(wmsg);
} }
this.emit("data", buf); this.emit("data", buf);
/* Recurse. */ /* Recurse. */
@ -575,8 +579,8 @@ function bufncmp(buf1, buf2, n) {
} }
function isclear(buf) { function isclear(buf) {
for (var i = 0; i < clearbufs.length; i++) { for (let clearer of clearbufs) {
if (bufncmp(buf, clearbufs[i], clearbufs[i].length)) if (bufncmp(buf, clearer, clearer.length))
return true; return true;
} }
return false; return false;
@ -847,6 +851,8 @@ function startProgressWatcher() {
} }
function serveStatic(req, res, fname) { function serveStatic(req, res, fname) {
if (fname[0] !== "/")
fname = "/" + fname;
var nname = path.normalize(fname); var nname = path.normalize(fname);
if (nname == "" || nname == "/") if (nname == "" || nname == "/")
nname = "index.html"; nname = "index.html";
@ -1039,10 +1045,6 @@ function setuinfo(req, res, postdata) {
} }
} }
var errorcodes = [ "Generic Error", "Not logged in", "Invalid data",
"Login failed", "Already playing", "Game launch failed",
"Server shutting down", "Game not in progress" ];
function sendError(res, ecode, msg, box) { function sendError(res, ecode, msg, box) {
res.writeHead(200, { "Content-Type": "application/json" }); res.writeHead(200, { "Content-Type": "application/json" });
var edict = {"t": "E"}; var edict = {"t": "E"};