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|
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>crypt.bensanders.net</title>
<meta name="description" content="A haunted server came back online on its own. Log in and find out why.">
<style>
:root {
--bg: #070909;
--panel: #0d1110;
--fg: #b9f2b1;
--dim: #5d7a5a;
--accent: #ff8a1f;
--red: #ff4d4d;
--ghost: #a6d8ff;
--ok: #7dff9a;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--fg); }
body {
font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
font-size: 15px;
line-height: 1.45;
display: flex;
flex-direction: column;
overflow: hidden;
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display: flex;
justify-content: space-between;
align-items: center;
gap: 12px;
padding: 8px 16px;
background: var(--panel);
border-bottom: 1px solid #1c2421;
font-size: 12px;
color: var(--dim);
flex-wrap: wrap;
}
#bar .title { color: var(--accent); }
#meter { display: flex; align-items: center; gap: 8px; }
#meter .track { width: 120px; height: 8px; background: #1a201e; border: 1px solid #2a3330; }
#meter .fill { height: 100%; width: 0; background: var(--fg); transition: width .3s, background .3s; }
#term {
flex: 1;
overflow-y: auto;
padding: 16px;
position: relative;
cursor: text;
}
#term::after {
content: "";
position: fixed;
inset: 0;
pointer-events: none;
background:
repeating-linear-gradient(to bottom, rgba(0,0,0,0) 0, rgba(0,0,0,0) 2px, rgba(0,0,0,.18) 3px),
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}
#out div { white-space: pre-wrap; overflow-wrap: anywhere; min-height: 1.45em; }
.cmd { color: var(--fg); }
.err { color: var(--red); }
.ok { color: var(--ok); }
.dim { color: var(--dim); }
.sys { color: var(--accent); }
.ls { color: var(--accent); }
.whisper { color: var(--ghost); font-style: italic; text-shadow: 0 0 6px rgba(166,216,255,.6); }
#inputline { display: flex; align-items: baseline; }
#prompt { white-space: pre; color: var(--ok); }
#cmd {
flex: 1;
min-width: 0;
background: transparent;
border: 0;
outline: none;
color: var(--fg);
font: inherit;
font-size: 16px;
caret-color: var(--fg);
padding: 0;
}
body[data-level="1"] #prompt { animation: flicker 4s infinite; }
body[data-level="2"] #prompt { color: var(--accent); animation: flicker 2.5s infinite; }
body[data-level="3"] #prompt { color: var(--red); animation: flicker 1.2s infinite; }
body[data-level="3"] #out { text-shadow: 1px 0 rgba(255,60,60,.35), -1px 0 rgba(80,160,255,.25); }
@keyframes flicker { 0%, 92%, 100% { opacity: 1; } 93% { opacity: .2; } 95% { opacity: .9; } 96% { opacity: .1; } }
body.glitch #term { animation: shake .35s linear; filter: hue-rotate(90deg) contrast(1.4); }
@keyframes shake {
0% { transform: translate(0,0); } 20% { transform: translate(-3px,1px); } 40% { transform: translate(3px,-2px); }
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#overlay {
position: fixed;
inset: 0;
display: none;
align-items: center;
justify-content: center;
background: rgba(3,4,4,.88);
padding: 16px;
z-index: 10;
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#overlay .box {
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width: 100%;
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background: var(--panel);
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text-align: center;
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#overlay h1 { margin: 0 0 8px; font-size: 32px; letter-spacing: 4px; }
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#overlay.lose h1 { color: var(--red); }
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@media (max-width: 520px) {
body { font-size: 13px; }
#meter .track { width: 80px; }
}
</style>
</head>
<body data-level="0">
<div id="bar">
<span class="title">ssh you@crypt.bensanders.net</span>
<span id="meter">corruption <span class="track"><span class="fill"></span></span> <span id="pct">0%</span></span>
</div>
<div id="term">
<div id="out" aria-live="polite"></div>
<div id="inputline" style="display:none">
<span id="prompt"></span><input id="cmd" type="text" autocomplete="off" autocapitalize="off" autocorrect="off" spellcheck="false" aria-label="terminal input">
</div>
</div>
<div id="overlay">
<div class="box">
<h1 id="ov-title"></h1>
<p id="ov-text"></p>
<div class="stats" id="ov-stats"></div>
<button id="ov-btn" type="button">ssh back in</button>
</div>
</div>
<script>
(() => {
const $out = document.getElementById('out');
const $term = document.getElementById('term');
const $input = document.getElementById('cmd');
const $prompt = document.getElementById('prompt');
const $inputline = document.getElementById('inputline');
const $fill = document.querySelector('#meter .fill');
const $pct = document.getElementById('pct');
const $overlay = document.getElementById('overlay');
const TRUE_NAME = 'MORGRAVE';
const KEY = 'SAMHAIN';
const SECRET = btoa('THE TRUE NAME IS MORGRAVE. DO NOT SAY IT ALOUD.');
const HALT = Symbol('halt');
const sleep = ms => new Promise(r => setTimeout(r, ms));
const textOf = x => (typeof x === 'string' ? x : x[0]);
/* ---------- filesystem ---------- */
const F = (content, opts = {}) => Object.assign({ type: 'file', content, mode: 0o644, owner: 'mara' }, opts);
const D = (children, opts = {}) => Object.assign({ type: 'dir', children, mode: 0o755, owner: 'root' }, opts);
function buildFS() {
return D({
home: D({
you: D({
'readme.txt': F(
`TICKET #3133 PRIORITY: URGENT STATUS: reopened (by system)
crypt.bensanders.net was decommissioned in November 2019.
Nobody turned it back on. It turned itself back on anyway.
The last admin, Mara Voss, stopped answering pages on Oct 31, 2019.
Her home directory is still here: /home/mara
Find out what happened. Then shut it down.
Useful: ls, cd, cat, ps. Type 'help' for more.`, { id: 'readme', owner: 'you' })
}, { owner: 'you' }),
mara: D({
'notes.txt': F(
`2019-10-03
Load average stuck at 6.66 on crypt. Probably a runaway cron job. Will check.
2019-10-11
There's a process called [wraith] that won't die. I kill it, it comes back
with a new PID. Something keeps restarting it.
2019-10-19
Logins in auth.log at 03:33 every night. From 0.0.0.0. User 'it'.
That user shouldn't exist. Check /etc/passwd. It does now.
2019-10-24
I think it reads everything I write on this box, so I'm hiding things.
It has a true name. I found it and buried it in the syslog, encoded,
so it can't read it back.
2019-10-27
The banishing key is split in three. One piece in the auth log. One in
my shell history. One in the cron job it uses to summon itself, scrambled
with rot13. It doesn't seem to understand rot13. Lucky.
2019-10-30
Wrote the rite down in seal.txt and locked it so nothing can read it.
Not even me, until I chmod it back. If you're reading this, so can you.
2019-10-31
It's 03:32. Don't kill the wraith directly. It just comes back.
Kill what it's holding on to.`, { id: 'notes' }),
'todo.txt': F(
`- renew ssl cert
- figure out why load avg is 6.66
- call mom
- DO NOT reboot crypt on oct 31
- `),
'photo.jpg': F(
`(binary data)
You squint at the bytes anyway. Somehow you can see it.
It's a photo of a desk.
Your desk.`),
'seal.txt': F(
`THE RITE OF SEVERANCE
1. Sever its anchor. The wraith cannot be banished while hollow holds it.
2. Speak its true name and the key together, with the banish command:
banish <TRUE NAME> <KEY>
3. Do not say the name any other way. It hears.
I ran out of time. I hope you don't. - M`, { id: 'seal', mode: 0o000 }),
'.bash_history': F(
`ps aux | grep wraith
kill -9 666
ps aux | grep wraith
kill -9 667
kill -9 668
pstree
cat /etc/cron.d/ritual
grep 03:33 /var/log/auth.log
echo "key 2/3: HA" > /dev/null
chmod 000 ~/seal.txt
history -c
history -c
history -c
whoami
whoami
whoami`, { id: 'bashhist' })
}, { owner: 'mara' })
}),
etc: D({
motd: F(
` crypt.bensanders.net
This system was decommissioned on 2019-11-01.
If you can read this, it is not decommissioned.`, { owner: 'root' }),
hostname: F('crypt', { owner: 'root' }),
passwd: F(
`root:x:0:0:root:/root:/bin/bash
mara:x:1000:1000:Mara Voss:/home/mara:/bin/bash
you:x:1031:1031::/home/you:/bin/bash
it:x:666:666:it:/dev/null:/usr/sbin/hollow`, { owner: 'root' }),
'cron.d': D({
ritual: F(
`# m h dom mon dow user command
33 3 * * * it /usr/local/bin/summon.sh
# VA <- 3/3, rot13. it can't read this. -m`, { id: 'ritual', owner: 'root' })
})
}),
var: D({
log: D({
'auth.log': F(
`Oct 28 08:02:11 crypt sshd[4120]: Accepted publickey for mara from 10.0.0.14 port 52211
Oct 28 08:02:11 crypt sshd[4120]: pam_unix(sshd:session): session opened for user mara
Oct 29 03:33:01 crypt sshd[4411]: Invalid user it from 0.0.0.0 port 0
Oct 29 03:33:01 crypt sshd[4411]: Failed password for invalid user it from 0.0.0.0 port 0
Oct 29 08:05:40 crypt sshd[4430]: Accepted publickey for mara from 10.0.0.14 port 52390
Oct 30 03:33:01 crypt sshd[4502]: Invalid user it from 0.0.0.0 port 0
Oct 30 03:33:02 crypt sshd[4502]: Accepted password for invalid user it from 0.0.0.0 port 0
Oct 30 09:14:55 crypt sudo: mara : TTY=pts/0 ; PWD=/home/mara ; USER=root ; COMMAND=/usr/bin/logger key 1/3: SAM
Oct 30 09:15:02 crypt sudo: pam_unix(sudo:session): session closed for user root
Oct 31 03:33:00 crypt sshd[4600]: Accepted password for it from 0.0.0.0 port 0
Oct 31 03:33:00 crypt sshd[4600]: pam_unix(sshd:session): session opened for user mara by it
Oct 31 03:33:00 crypt sshd[4600]: session never closed`, { owner: 'root' }),
syslog: F(
`Oct 24 22:09:58 crypt systemd[1]: Started Daily apt download activities.
Oct 24 22:10:13 crypt mara: note-to-self ${SECRET}
Oct 24 22:10:14 crypt kernel: [666.666666] hollow[313]: failed to read /var/log/syslog (encoding not understood)
Oct 25 03:33:00 crypt CRON[5120]: (it) CMD (/usr/local/bin/summon.sh)
Oct 26 03:33:00 crypt CRON[5233]: (it) CMD (/usr/local/bin/summon.sh)
Oct 27 03:33:00 crypt kernel: [3333.333333] thermal: rack 4 temperature below 0C
Oct 28 03:33:00 crypt CRON[5402]: (it) CMD (/usr/local/bin/summon.sh)
Oct 29 03:33:00 crypt kernel: [6666.666666] [wraith]: respawned by parent 313
Oct 31 03:33:00 crypt systemd[1]: Reached target It.`, { owner: 'root' })
})
}),
usr: D({
local: D({
bin: D({
'summon.sh': F(
`#!/bin/sh
# do not edit
while true; do
/usr/sbin/hollow --hold "[wraith]" &
sleep 333
done
# it is cold in here
# let me out
# let me in`, { owner: 'it', mode: 0o755 })
})
}),
sbin: D({
hollow: F(
`ELF (binary)
You try to read it anyway. Past the header, it's just one word, repeated:
HOLD HOLD HOLD HOLD HOLD HOLD HOLD HOLD HOLD HOLD HOLD HOLD HOLD`, { owner: 'it', mode: 0o755 })
})
}),
proc: D({
'1': D({ status: F('Name: init\nState: S (sleeping)\nPPid: 0', { owner: 'root' }) }),
'313': D({ status: F('Name: hollow\nState: S (holding)\nPPid: 1\nHolds: [wraith]\nNote: as long as I run, it returns.', { owner: 'it' }) }),
'666': D({ status: F('Name: [wraith]\nState: R (restless)\nPPid: 313\nUid: 666 (it)', { owner: 'it' }) })
}),
tmp: D({
'.it': F('i was here before you.\ni will be here after.', { owner: 'it' })
}, { mode: 0o777 }),
root: D({}, { mode: 0o700, locked: true })
});
}
function resolve(p) {
let parts;
if (p === undefined || p === '') return [...state.cwd];
if (p === '~' || p.startsWith('~/')) { parts = ['home', 'you']; p = p.slice(1); }
else if (p.startsWith('/')) parts = [];
else parts = [...state.cwd];
for (const seg of p.split('/')) {
if (!seg || seg === '.') continue;
if (seg === '..') parts.pop(); else parts.push(seg);
}
return parts;
}
function getNode(parts) {
let n = state.fs;
for (const s of parts) {
if (n.type !== 'dir' || !Object.prototype.hasOwnProperty.call(n.children, s)) return null;
n = n.children[s];
}
return n;
}
function pathStr(parts) { return '/' + parts.join('/'); }
function readFile(p) {
const n = getNode(resolve(p));
if (!n) return { err: `${p}: No such file or directory` };
if (n.type === 'dir') return { err: `${p}: Is a directory` };
if (!(n.mode & 0o400)) return { err: `${p}: Permission denied` };
if (n.id) state.flags[n.id] = true;
return { text: n.content };
}
function modeStr(n) {
let s = n.type === 'dir' ? 'd' : '-';
for (let sh = 6; sh >= 0; sh -= 3) {
const b = (n.mode >> sh) & 7;
s += (b & 4 ? 'r' : '-') + (b & 2 ? 'w' : '-') + (b & 1 ? 'x' : '-');
}
return s;
}
function lsLong(name, n) {
const size = n.type === 'dir' ? 4096 : n.content.length;
const o = (n.owner || 'root').padEnd(5);
return `${modeStr(n)} 1 ${o} ${o} ${String(size).padStart(5)} Oct 31 03:33 ${name}${n.type === 'dir' ? '/' : ''}`;
}
function parseMode(m, cur) {
if (/^[0-7]{3,4}$/.test(m)) return parseInt(m.slice(-3), 8);
let mode = cur;
for (const p of m.split(',')) {
const mm = p.match(/^([ugoa]*)([+\-=])([rwx]*)$/);
if (!mm) return null;
let who = mm[1] || 'a';
if (who.includes('a')) who = 'ugo';
let bits = 0, mask = 0;
for (const w of who) {
const sh = w === 'u' ? 6 : w === 'g' ? 3 : 0;
mask |= 7 << sh;
for (const c of mm[3]) bits |= ({ r: 4, w: 2, x: 1 }[c]) << sh;
}
if (mm[2] === '+') mode |= bits;
else if (mm[2] === '-') mode &= ~bits;
else mode = (mode & ~mask) | bits;
}
return mode;
}
/* ---------- decoding helpers ---------- */
function checkF3(inp, out) {
if (/\bVA\b/.test(inp) && /\bIN\b/.test(out)) state.flags.f3 = true;
}
function rot13(s) {
const r = s.replace(/[a-z]/gi, c => {
const base = c <= 'Z' ? 65 : 97;
return String.fromCharCode((c.charCodeAt(0) - base + 13) % 26 + base);
});
checkF3(s, r);
return r;
}
function expand(set) {
let r = '';
for (let i = 0; i < set.length; i++) {
if (set[i + 1] === '-' && i + 2 < set.length) {
for (let c = set.charCodeAt(i); c <= set.charCodeAt(i + 2); c++) r += String.fromCharCode(c);
i += 2;
} else r += set[i];
}
return r;
}
/* ---------- text content ---------- */
const WHISPERS = [
'it is cold in here', 'you type like her', '03:33', 'she is still logged in',
'let me out', 'let me in', 'i can read your history', 'why did you come back',
'we were never decommissioned', 'do you hear the fans', 'stay a while', 'behind you'
];
const FORTUNES = [
'You will meet a tall, dark process. Do not kill it directly.',
'The load average counts what is waiting. Not all of it is software.',
'Every server is haunted by somebody\'s old cron job.',
'Today is a good day to read the logs. Tonight is not.',
'Uptime is just how long it has been awake.',
'If a process dies and respawns, check who its parent is.',
'Nothing is ever really deleted. Ask /tmp.'
];
/* ---------- commands ---------- */
function killPid(pid) {
if (pid === state.wraithPid) {
if (state.anchorKilled) return ['[wraith] is already <defunct>. It isn\'t running anymore. It\'s waiting. Finish the rite.'];
state.wraithKills++;
const old = pid;
state.wraithPid = pid + 1 + Math.floor(Math.random() * 3);
state.pending += 5;
const o = [`[${old}] Killed [wraith]`, ['...', 'dim'], [`[wraith] respawned as PID ${state.wraithPid}.`, 'err']];
if (state.wraithKills >= 2) o.push(['kill me all you like. hollow just brings me back.', 'whisper']);
return o;
}
switch (pid) {
case 313:
if (state.anchorKilled) return [['kill: (313) - No such process', 'err']];
state.anchorKilled = true;
delete state.fs.children.proc.children['313'];
state.corruption = Math.max(0, state.corruption - 15);
return [
['[313] Terminated hollow', 'ok'],
'The fans spin down for a moment.',
['[wraith] has lost its anchor. It is <defunct> now. Weaker. Waiting.', 'ok'],
['what did you do', 'whisper']
];
case 1:
state.pending += 3;
return [['kill: (1) - you could bring everything down. it would like that.', 'err']];
case 212: return [['kill: (212) - then how would anyone get in? or out?', 'err']];
case 987: return ['You end Mara\'s session. Nothing happens. She hasn\'t been in there for a long time.'];
case 1031: return [['kill: (1031) - you can\'t kill yourself here. not yet.', 'err']];
default: return [[`kill: (${pid}) - No such process`, 'err']];
}
}
const COMMANDS = {
help: () => [
'Available commands:',
' ls [-la] [path] list files',
' cd <path> change directory',
' cat <file> print a file',
' pwd where am I',
' grep [-iv] <pat> [file] search text',
' ps [aux], pstree list processes',
' kill <pid>, killall end a process',
' chmod <mode> <file> change permissions',
' base64 -d, tr decode things (pipes work: echo X | base64 -d)',
' decode <base64|rot13> <text> shortcut decoder',
' head, tail, wc, echo, history, clear, whoami, date, uptime',
' hint ask for help (it will cost you)',
' banish ... you\'ll know when',
['Tab completes, arrow keys browse history. Other commands might work too.', 'dim']
],
ls(args) {
let all = false, long = false;
const paths = [];
args.forEach(a => { if (a.startsWith('-')) { if (a.includes('a')) all = true; if (a.includes('l')) long = true; } else paths.push(a); });
if (!paths.length) paths.push('.');
const out = [];
paths.forEach(p => {
const n = getNode(resolve(p));
if (!n) { out.push([`ls: cannot access '${p}': No such file or directory`, 'err']); return; }
if (n.type === 'file') { out.push(long ? lsLong(p.split('/').pop(), n) : p); return; }
if (n.locked) { out.push([`ls: cannot open directory '${p}': Permission denied`, 'err']); return; }
if (paths.length > 1) out.push(p + ':');
let names = Object.keys(n.children).sort();
if (!all) names = names.filter(x => !x.startsWith('.'));
if (long) {
if (all) { out.push(lsLong('.', n)); out.push(lsLong('..', { type: 'dir', mode: 0o755, owner: 'root' })); }
names.forEach(x => out.push(lsLong(x, n.children[x])));
} else {
const shown = (all ? ['.', '..'] : []).concat(names.map(x => n.children[x].type === 'dir' ? x + '/' : x));
if (shown.length) out.push([shown.join(' '), 'ls']);
}
});
return out;
},
cd(args) {
const p = args[0] || '~';
const parts = resolve(p);
const n = getNode(parts);
if (!n) return [[`cd: no such file or directory: ${p}`, 'err']];
if (n.type !== 'dir') return [[`cd: not a directory: ${p}`, 'err']];
if (n.locked) return [[`cd: permission denied: ${p}`, 'err'], ['something in there is listening', 'whisper']];
state.cwd = parts;
return [];
},
pwd: () => [pathStr(state.cwd)],
cat(args, stdin) {
if (!args.length) return stdin || [];
const out = [];
args.forEach(a => {
const r = readFile(a);
if (r.err) out.push([`cat: ${r.err}`, 'err']);
else if (r.text) out.push(...r.text.split('\n'));
});
return out;
},
grep(args, stdin) {
let ci = false, inv = false;
const rest = [];
args.forEach(a => {
if (/^-[iv]+$/.test(a)) { if (a.includes('i')) ci = true; if (a.includes('v')) inv = true; }
else rest.push(a);
});
if (!rest.length) return ['usage: grep [-iv] PATTERN [FILE...]'];
const pat = rest[0];
let re = null;
try { re = new RegExp(pat, ci ? 'i' : ''); } catch (e) { re = null; }
const test = l => (re ? re.test(l) : (ci ? l.toLowerCase().includes(pat.toLowerCase()) : l.includes(pat))) !== inv;
const files = rest.slice(1);
const out = [];
if (!files.length) {
(stdin || []).map(textOf).forEach(l => { if (test(l)) out.push(l); });
return out;
}
files.forEach(f => {
const r = readFile(f);
if (r.err) { out.push([`grep: ${r.err}`, 'err']); return; }
r.text.split('\n').forEach(l => { if (test(l)) out.push(files.length > 1 ? `${f}:${l}` : l); });
});
return out;
},
head(args, stdin) { return headTail(args, stdin, true); },
tail(args, stdin) { return headTail(args, stdin, false); },
wc(args, stdin) {
const files = args.filter(a => !a.startsWith('-'));
let text;
if (files.length) { const r = readFile(files[0]); if (r.err) return [[`wc: ${r.err}`, 'err']]; text = r.text; }
else text = (stdin || []).map(textOf).join('\n');
const lines = text ? text.split('\n').length : 0;
if (args.includes('-l')) return [String(lines)];
return [`${lines} ${text.split(/\s+/).filter(Boolean).length} ${text.length}${files[0] ? ' ' + files[0] : ''}`];
},
echo(args) {
const s = args.join(' ');
if (s.toUpperCase().includes(TRUE_NAME)) {
state.pending += 15;
return [s, ['you said my name', 'whisper'], ['The lights in the rack flicker. Something got closer.', 'err']];
}
return [s];
},
ps(args) {
const rows = [
['USER', 'PID', 'PPID', 'STAT', 'COMMAND'],
['root', '1', '0', 'Ss', '/sbin/init'],
['root', '212', '1', 'Ss', '/usr/sbin/sshd'],
['mara', '987', '212', 'S', '-bash (idle since 2019-10-31 03:33)'],
['you', '1031', '212', 'Ss', '-bash']
];
if (!state.anchorKilled) rows.push(['it', '313', '1', 'S', '/usr/sbin/hollow --hold [wraith]']);
rows.push(state.anchorKilled
? ['it', String(state.wraithPid), '1', 'Z', '[wraith] <defunct>']
: ['it', String(state.wraithPid), '313', 'R', '[wraith]']);
rows.push(['you', String(1100 + state.commands), '1031', 'R+', ('ps ' + args.join(' ')).trim()]);
return rows.map(r => r[0].padEnd(6) + r[1].padStart(6) + r[2].padStart(6) + ' ' + r[3].padEnd(5) + r[4]);
},
pstree() {
if (state.anchorKilled) return ['init─┬─sshd─┬─bash', ' │ └─bash───pstree', ' └─[wraith] <defunct>'];
return ['init─┬─sshd─┬─bash', ' │ └─bash───pstree', ' └─hollow───[wraith]'];
},
kill(args) {
const pids = args.filter(a => /^\d+$/.test(a));
if (!pids.length) return ['usage: kill [-9] <pid>'];
return pids.flatMap(p => killPid(parseInt(p, 10)));
},
killall(args) {
const name = (args.filter(a => !a.startsWith('-'))[0] || '').replace(/[\[\]]/g, '');
if (name === 'wraith') return killPid(state.wraithPid);
if (name === 'hollow') return killPid(313);
if (!name) return ['usage: killall <name>'];
return [[`${name}: no process found`, 'err']];
},
chmod(args) {
if (args.length < 2) return ['usage: chmod MODE FILE'];
const [m, ...files] = args;
const out = [];
files.forEach(f => {
const n = getNode(resolve(f));
if (!n) { out.push([`chmod: cannot access '${f}': No such file or directory`, 'err']); return; }
if (n.locked || n.owner === 'root' || n.owner === 'it') { out.push([`chmod: changing permissions of '${f}': Operation not permitted`, 'err']); return; }
const nm = parseMode(m, n.mode);
if (nm === null) { out.push([`chmod: invalid mode: '${m}'`, 'err']); return; }
n.mode = nm;
if (n.id === 'seal' && (nm & 0o400)) out.push(['she locked that for a reason', 'whisper']);
});
return out;
},
base64(args, stdin) {
const dec = args.some(a => a === '-d' || a === '--decode' || a === '-D');
const files = args.filter(a => !a.startsWith('-'));
let inp;
if (files.length) { const r = readFile(files[0]); if (r.err) return [[`base64: ${r.err}`, 'err']]; inp = r.text; }
else if (stdin) inp = stdin.map(textOf).join('\n');
else return ['base64: nothing to read. Try: echo <text> | base64 -d'];
if (dec) {
try {
const res = atob(inp.replace(/\s+/g, ''));
if (res.includes(TRUE_NAME)) state.flags.name = true;
return res.split('\n');
} catch (e) { return [['base64: invalid input', 'err']]; }
}
try { return [btoa(inp)]; } catch (e) { return [['base64: invalid input', 'err']]; }
},
tr(args, stdin) {
if (args.length < 2) return ['usage: tr SET1 SET2 (reads from a pipe)'];
const a = expand(args[0]), b = expand(args[1]);
const map = {};
for (let i = 0; i < a.length; i++) map[a[i]] = b[Math.min(i, b.length - 1)];
const inp = (stdin || []).map(textOf);
const out = inp.map(l => [...l].map(c => (c in map ? map[c] : c)).join(''));
checkF3(inp.join('\n'), out.join('\n'));
return out;
},
rot13(args, stdin) {
const t = args.length ? args.join(' ') : (stdin || []).map(textOf).join('\n');
return rot13(t).split('\n');
},
decode(args, stdin) {
const mode = (args[0] || '').toLowerCase();
const text = args.slice(1).join(' ') || (stdin || []).map(textOf).join('\n');
if (!text || !['base64', 'b64', 'rot13'].includes(mode)) return ['usage: decode <base64|rot13> <text> (or pipe text in)'];
if (mode === 'rot13') return rot13(text).split('\n');
return COMMANDS.base64(['-d'], [text]);
},
history() {
const out = state.hist.map((h, i) => `${String(i + 1).padStart(5)} ${h}`);
if (state.corruption >= 40) {
const n = 1 + Math.floor(state.corruption / 30);
for (let i = 0; i < n; i++) {
const pos = Math.floor(Math.random() * (out.length + 1));
out.splice(pos, 0, [' ? ' + WHISPERS[Math.floor(Math.random() * WHISPERS.length)], 'whisper']);
}
}
return out;
},
whoami: () => [(state.corruption >= 60 && Math.random() < 0.5) ? 'it' : 'you'],
id: () => ['uid=1031(you) gid=1031(you) groups=1031(you),666(it)'],
who: () => ['you pts/0 now', 'mara pts/1 2019-10-31 03:33 (0.0.0.0)'],
w: () => COMMANDS.who(),
last: () => ['you pts/0 still logged in', 'mara pts/1 Thu Oct 31 03:33 still logged in', 'it ? Thu Oct 31 03:33 still logged in'],
date: () => [`Thu Oct 31 03:33:${String(state.commands % 60).padStart(2, '0')} EDT 2019`],
uptime: () => [' 03:33:00 up 2557 days, 3:33, 3 users, load average: 6.66, 6.66, 6.66'],
uname: args => [args.includes('-a') ? 'Linux crypt 6.6.6-hollow #1 SMP PREEMPT Thu Oct 31 03:33:00 2019 x86_64 GNU/Linux' : 'Linux'],
hostname: () => ['crypt'],
man(args) {
const page = args[0];
if (!page) return ['What manual page do you want? It wants yours.'];
if (page === 'ghost') return [
'GHOST(6) Haunted Programmer\'s Manual GHOST(6)', '',
'NAME', ' ghost - a process that outlived its owner\'s intentions', '',
'SYNOPSIS', ' ghost [--hold anchor] [--whisper] [--never-exit]', '',
'DESCRIPTION',
' A ghost is not killed, it is released. Signals sent to a ghost are',
' received, logged, and ignored. A ghost held by an anchor will',
' respawn forever.', '',
'BUGS', ' It reads your notes.', '',
'SEE ALSO', ' banish(8), hollow(8), kill(1) (mostly useless)'
];
if (page === 'banish') return ['BANISH(8)', '', 'NAME', ' banish - release a bound process', '', ['The rest of this page has been eaten.', 'dim']];
if (page === 'hollow') return ['HOLLOW(8)', '', 'NAME', ' hollow - keeps something from leaving', '', 'DESCRIPTION', ' While hollow runs, its child cannot be released.'];
return [`No manual entry for ${page}. Mara took them with her.`];
},
fortune: () => [FORTUNES[Math.floor(Math.random() * FORTUNES.length)]],
cowsay(args) {
const msg = args.join(' ') || 'boo';
return [
' ' + '_'.repeat(msg.length + 2), `< ${msg} >`, ' ' + '-'.repeat(msg.length + 2),
' \\ .-"""-.', ' \\ / \\', ' | () () |', ' \\ ^ /', ' |||||', ' |||||'
];
},
sudo: () => [['you is not in the sudoers file. This incident will be reported.', 'err'], ['to me', 'whisper']],
su: () => [['su: Authentication failure. You have no power here.', 'err']],
exit: () => { state.pending += 2; return [['There is no exit.', 'err']]; },
logout: () => COMMANDS.exit(),
quit: () => COMMANDS.exit(),
rm(args) {
if (args.some(a => a.startsWith('-') && a.includes('r')) && args.includes('/')) {
state.pending += 10;
return [['rm: it would like that very much.', 'err'], ['yes. erase everything. then there is only me.', 'whisper']];
}
return [['rm: read-only file system. it wants to keep everything.', 'err']];
},
touch: () => [['read-only file system', 'err']],
mkdir: () => [['read-only file system', 'err']],
mv: () => [['read-only file system', 'err']],
cp: () => [['read-only file system', 'err']],
vim: () => [['You open vim. Then you remember Mara never got out either.', 'err']],
vi: () => COMMANDS.vim(),
nano: () => [['nano: the file is open in another session. user: it', 'err']],
emacs: () => [['emacs: not enough memory. it is using all of it.', 'err']],
ssh: () => ['ssh: where would you go?'],
ping: () => ['PING 0.0.0.0: 64 bytes from 0.0.0.0: icmp_seq=1 ttl=666 time=0.000 ms', ['it is very close', 'whisper']],
reboot: () => [['reboot: it won\'t let you. Not until it\'s banished.', 'err']],
shutdown: () => COMMANDS.reboot(),
poweroff: () => COMMANDS.reboot(),
halt: () => COMMANDS.reboot(),
top: args => COMMANDS.ps(args),
clear: () => { $out.innerHTML = ''; return []; },
hint() {
state.pending += 4;
const f = state.flags;
let h;
if (!f.readme) h = 'Start with the ticket: cat readme.txt';
else if (!f.notes) h = 'Mara\'s home directory is /home/mara. Read her notes.';
else if (!f.name) h = 'The true name is in /var/log/syslog. Find the line that looks like base64, then: echo <text> | base64 -d';
else if (!f.f1) h = 'Key piece 1 is in /var/log/auth.log. grep for "key".';
else if (!f.f2) h = 'Key piece 2 is in Mara\'s shell history. Hidden files show up with ls -a.';
else if (!f.f3) h = 'Key piece 3 is in /etc/cron.d/ritual, rot13 encoded. Try: decode rot13 <text>';
else if (!f.seal) h = 'seal.txt is locked. Check it with ls -l, then chmod it so you can read it.';
else if (!state.anchorKilled) h = 'The wraith has a parent process. Find it with ps aux or pstree, and kill that first.';
else h = 'You have everything you need. banish <NAME> <KEY>';
return [['hint: ' + h, 'sys'], ['asking for help makes you weaker', 'whisper']];
},
banish(args) {
const vals = args.filter(a => !a.startsWith('-')).map(a => a.toUpperCase());
if (vals.length < 2) return ['usage: banish <TRUE NAME> <KEY>'];
const [name, key] = vals;
if (name !== TRUE_NAME) { state.pending += 10; return [['banish: that is not its name. It laughs anyway.', 'err']]; }
if (key !== KEY) { state.pending += 10; return [['banish: the name is right, but the key does not fit.', 'err']]; }
if (!state.anchorKilled) { state.pending += 10; return [['It hears its name and holds on tighter. Its anchor is still running.', 'err'], ['hollow holds me', 'whisper']]; }
win();
return HALT;
}
};
function headTail(args, stdin, head) {
let n = 10;
const files = [];
for (let i = 0; i < args.length; i++) {
if (args[i] === '-n' && args[i + 1]) { n = parseInt(args[++i], 10) || 10; }
else if (/^-\d+$/.test(args[i])) n = parseInt(args[i].slice(1), 10);
else files.push(args[i]);
}
let lines;
if (files.length) { const r = readFile(files[0]); if (r.err) return [[`${head ? 'head' : 'tail'}: ${r.err}`, 'err']]; lines = r.text.split('\n'); }
else lines = stdin || [];
return head ? lines.slice(0, n) : lines.slice(-n);
}
/* ---------- engine ---------- */
let state;
function newState() {
return {
fs: buildFS(), cwd: ['home', 'you'], corruption: 0, pending: 0, commands: 0,
anchorKilled: false, wraithPid: 666, wraithKills: 0, flags: {},
hist: [], histIdx: 0, over: false, started: Date.now()
};
}
function print(items, cls) {
for (const it of items) {
const [t, c] = typeof it === 'string' ? [it, cls || ''] : it;
for (const piece of String(t).split('\n')) {
const d = document.createElement('div');
if (c) d.className = c;
d.textContent = piece;
$out.appendChild(d);
}
}
$term.scrollTop = $term.scrollHeight;
}
function promptText() {
const c = state.corruption;
const user = c >= 80 ? 'it' : c >= 50 ? 'y\u0338o\u0336u' : 'you';
let p = pathStr(state.cwd);
if (p === '/home/you') p = '~';
else if (p.startsWith('/home/you/')) p = '~' + p.slice(9);
return `${user}@crypt:${p}$ `;
}
function updateMeter() {
const c = Math.max(0, Math.min(100, state.corruption));
$fill.style.width = c + '%';
$fill.style.background = c >= 75 ? 'var(--red)' : c >= 50 ? 'var(--accent)' : 'var(--fg)';
$pct.textContent = c + '%';
document.body.dataset.level = c >= 75 ? '3' : c >= 50 ? '2' : c >= 25 ? '1' : '0';
$prompt.textContent = promptText();
}
function tokenize(s) {
const t = [];
let cur = '', q = null, has = false;
const push = () => { if (cur || has) { t.push(cur); cur = ''; has = false; } };
for (const ch of s) {
if (q) { if (ch === q) q = null; else cur += ch; continue; }
if (ch === '"' || ch === "'") { q = ch; has = true; continue; }
if (/\s/.test(ch)) { push(); continue; }
if (ch === '|' || ch === '>') { push(); t.push({ op: ch }); continue; }
cur += ch;
}
push();
return t;
}
function scan(out) {
const text = out.map(textOf).join('\n');
if (text.includes('key 1/3: SAM')) state.flags.f1 = true;
if (text.includes('key 2/3: HA')) state.flags.f2 = true;
if (text.includes('THE RITE OF SEVERANCE')) state.flags.seal = true;
if (text.includes('THE TRUE NAME IS ' + TRUE_NAME)) state.flags.name = true;
}
function run(raw) {
print([[promptText() + raw, 'cmd']]);
const line = raw.trim();
if (!line) return;
state.hist.push(line);
state.histIdx = state.hist.length;
state.commands++;
const toks = tokenize(line);
let out;
if (toks.some(t => t.op === '>')) {
out = [['bash: read-only file system. it likes things the way they are.', 'err']];
} else {
const segs = [[]];
toks.forEach(t => { if (t.op === '|') segs.push([]); else segs[segs.length - 1].push(t); });
out = null;
for (const seg of segs) {
if (!seg.length) { out = [['bash: syntax error near unexpected token `|\'', 'err']]; break; }
const [cmd, ...args] = seg;
if (cmd.toUpperCase() === TRUE_NAME) {
state.pending += 15;
out = [['It heard you.', 'err'], ['again. say it again.', 'whisper']];
break;
}
const fn = COMMANDS[cmd] || COMMANDS[cmd.toLowerCase()];
if (!fn) { out = [[`${cmd}: command not found`, 'err']]; if (state.corruption > 60 && Math.random() < 0.4) out.push(['did you mean: let me out', 'whisper']); break; }
out = fn(args, out);
if (out === HALT) return;
}
}
print(out || []);
scan(out || []);
afterCommand();
}
function afterCommand() {
state.corruption = Math.min(100, state.corruption + 1 + state.pending);
state.pending = 0;
updateMeter();
if (state.corruption >= 100) { lose(); return; }
const c = state.corruption;
if (c > 10 && Math.random() < c / 160) {
const w = WHISPERS[Math.floor(Math.random() * WHISPERS.length)];
setTimeout(() => { if (!state.over) print([[w, 'whisper']]); }, 500);
}
if (c >= 70 && Math.random() < 0.25) {
document.body.classList.add('glitch');
setTimeout(() => document.body.classList.remove('glitch'), 360);
}
}
function elapsed() {
const s = Math.floor((Date.now() - state.started) / 1000);
return `${Math.floor(s / 60)}:${String(s % 60).padStart(2, '0')}`;
}
function showOverlay(kind, title, text, stats) {
$overlay.className = 'show ' + kind;
document.getElementById('ov-title').textContent = title;
document.getElementById('ov-text').textContent = text;
document.getElementById('ov-stats').textContent = stats;
document.getElementById('ov-btn').focus();
}
async function win() {
state.over = true;
$inputline.style.display = 'none';
const seq = [
['You speak its name: MORGRAVE.', 'sys', 400],
['You speak the key: SAMHAIN.', 'sys', 900],
['', '', 600],
[`[${state.wraithPid}] Exited (0) [wraith]`, 'ok', 700],
['let me', 'whisper', 900],
['', '', 300],
['load average: 0.00, 0.00, 0.00', 'dim', 900],
['Somewhere in the rack, a fan spins down for the first time in seven years.', '', 900],
['mara pts/1 logged out', 'dim', 1000],
['Connection to crypt.bensanders.net closed.', 'sys', 1000]
];
for (const [t, c, d] of seq) { await sleep(d); print([[t, c]]); }
await sleep(1200);
let best = null;
try {
best = JSON.parse(localStorage.getItem('crypt-best') || 'null');
if (!best || state.commands < best.commands) {
best = { commands: state.commands, time: elapsed() };
localStorage.setItem('crypt-best', JSON.stringify(best));
}
} catch (e) { best = null; }
showOverlay('win', 'BANISHED',
'The wraith is gone. Mara\'s session finally closed.\nTicket #3133: resolved.',
`time ${elapsed()} · commands ${state.commands} · corruption ${state.corruption}%` +
(best ? `\nbest run: ${best.commands} commands (${best.time})` : ''));
}
async function lose() {
state.over = true;
$inputline.style.display = 'none';
await sleep(400);
print([['it@crypt:~$ ', 'err']]);
await sleep(900);
print([['thank you for staying', 'whisper']]);
await sleep(1200);
showOverlay('lose', 'POSSESSED',
'You stayed too long. The prompt belongs to it now.\nSomeone will open a ticket about you, eventually.',
`time ${elapsed()} · commands ${state.commands}`);
}
/* ---------- input ---------- */
function complete() {
const v = $input.value;
const m = v.match(/^(.*?)(\S*)$/);
const before = m[1], word = m[2];
let cands;
if (!before.trim()) {
cands = Object.keys(COMMANDS).filter(c => c.startsWith(word)).map(c => c + ' ');
} else {
const slash = word.lastIndexOf('/');
const dirPart = slash >= 0 ? word.slice(0, slash + 1) : '';
const base = word.slice(slash + 1);
const dn = getNode(resolve(dirPart || '.'));
if (!dn || dn.type !== 'dir' || dn.locked) return;
cands = Object.keys(dn.children)
.filter(n => n.startsWith(base) && (base.startsWith('.') || !n.startsWith('.')))
.map(n => dirPart + n + (dn.children[n].type === 'dir' ? '/' : ' '));
}
if (cands.length === 1) $input.value = before + cands[0];
else if (cands.length > 1) {
let pre = cands[0];
for (const c of cands) while (!c.startsWith(pre)) pre = pre.slice(0, -1);
print([[promptText() + v, 'cmd'], [cands.map(c => c.trim()).join(' '), 'dim']]);
$input.value = before + pre;
}
}
$input.addEventListener('keydown', e => {
if (state.over) return;
if (e.key === 'Enter') {
const v = $input.value;
$input.value = '';
run(v);
if (!state.over) $prompt.textContent = promptText();
} else if (e.key === 'ArrowUp') {
e.preventDefault();
if (state.histIdx > 0) { state.histIdx--; $input.value = state.hist[state.histIdx]; }
} else if (e.key === 'ArrowDown') {
e.preventDefault();
if (state.histIdx < state.hist.length - 1) { state.histIdx++; $input.value = state.hist[state.histIdx]; }
else { state.histIdx = state.hist.length; $input.value = ''; }
} else if (e.key === 'Tab') {
e.preventDefault();
complete();
} else if (e.ctrlKey && e.key.toLowerCase() === 'l') {
e.preventDefault();
$out.innerHTML = '';
} else if (e.ctrlKey && e.key.toLowerCase() === 'c') {
if (window.getSelection().toString()) return;
e.preventDefault();
print([[promptText() + $input.value + '^C', 'cmd']]);
$input.value = '';
}
});
$term.addEventListener('click', () => {
if (!window.getSelection().toString() && !state.over) $input.focus();
});
document.getElementById('ov-btn').addEventListener('click', start);
async function start() {
state = newState();
$out.innerHTML = '';
$overlay.className = '';
$inputline.style.display = 'none';
updateMeter();
const boot = [
['$ ssh you@crypt.bensanders.net', 'cmd', 300],
['Connecting to crypt.bensanders.net (0.0.0.0)...', 'dim', 700],
['WARNING: the host key for crypt.bensanders.net has changed. Again.', 'err', 800],
['you@crypt.bensanders.net\'s password: ********', 'dim', 900],
['Last login: Thu Oct 31 03:33:00 2019 from 0.0.0.0', '', 700],
['', '', 200],
[state.fs.children.etc.children.motd.content, 'sys', 400],
['', '', 200],
['Type \'help\' to see what you can do. Start with: cat readme.txt', 'dim', 500]
];
for (const [t, c, d] of boot) { await sleep(d); print([[t, c]]); }
$inputline.style.display = 'flex';
$prompt.textContent = promptText();
$input.focus();
}
start();
})();
</script>
</body>
</html>
|
