From fbdd91fbfd3c4a4df75cd63ea2b5e78e25572112 Mon Sep 17 00:00:00 2001
From: deuce <>
Date: Thu, 26 Sep 2019 10:00:07 +0000
Subject: [PATCH] Support encrypted .REC files.
---
xtrn/lord2/lord2.js | 61 ++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 58 insertions(+), 3 deletions(-)
diff --git a/xtrn/lord2/lord2.js b/xtrn/lord2/lord2.js
index da2383b763..b58931970b 100644
--- a/xtrn/lord2/lord2.js
+++ b/xtrn/lord2/lord2.js
@@ -2144,6 +2144,10 @@ function run_ref(sec, fname)
player.lastsaved = savetime();
player.put();
update_rec = ufile.get(player.Record);
+ while(update_rec === null) {
+ ufile.new();
+ update_rec = ufile.get(player.Record);
+ }
},
'offmap':function(args) {
// TODO: Disappear to other players... this toggles busy because
@@ -2809,15 +2813,62 @@ rescan:
function load_ref(fname) {
var obj = {section:{}};
fname = fname.toLowerCase();
- var f = new File(getfname(fname));
+ var f;
var cs;
var i;
+ var enc = false;
+
+ function decrypt(o) {
+ o.forEach(function(l, i) {
+ var off;
+ var odd;
+ var con;
+ var ret = '';
+ var ch;
+ var ct = 1;
+
+ con = ascii(l.substr(4, 1));
+ odd = ascii(l.substr(2, 1));
+ for (off = 5; off < l.length; off++) {
+ ch = ascii(l.substr(off, 1));
+ ch -= ct;
+ ct++;
+ if (ct == 10)
+ ct = 0;
+ ch -= con;
+ if (ct & 1)
+ ch -= odd;
+ ret += ascii(ch);
+ }
+log('ret: '+ret);
+ o[i] = ret;
+ });
+ }
+ f = new File(getfname(fname));
+ if (!file_exists(f.name)) {
+ f = new File(getfname(fname.replace(/\.ref$/, '.rec')));
+ if (file_exists(f.name))
+ enc = true;
+ }
if (!f.open('r'))
throw('Unable to open '+f.name);
- obj.lines = f.readAll(4096);
- obj.lines.unshift(';secret line zero... shhhhh');
+ if (enc) {
+ obj.lines = [];
+ while(1) {
+ i = f.read(2);
+ if (i === '')
+ break;
+ i += f.read(ascii(i.substr(1,1))-3);
+ f.readln();
+ obj.lines.push(i);
+ }
+ decrypt(obj.lines);
+ }
+ else
+ obj.lines = f.readAll(4096);
f.close();
+ obj.lines.unshift(';secret line zero... shhhhh');
obj.lines.forEach(function(l, n) {
var m;
var sc;
@@ -2900,6 +2951,10 @@ function load_player()
if (p.realname === dk.user.full_name) {
player = p;
update_rec = ufile.get(p.Record);
+ while(update_rec === null) {
+ ufile.new();
+ update_rec = ufile.get(player.Record);
+ }
return;
}
}
--
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