fix: move hashcash PoW from build artifact to JSX source

The hashcash proof-of-work implementation was incorrectly added to the
build artifact web/dist/app.js instead of the source file web/src/app.jsx.
Running web/build.sh would overwrite all hashcash changes.

Changes:
- Add checkLeadingZeros() and mintHashcash() functions to app.jsx
- Integrate hashcash into LoginScreen: fetch hashcash_bits from /server,
  compute stamp via Web Crypto API before session creation, show
  'Computing proof-of-work...' feedback
- Remove web/dist/ from git tracking (build artifacts)
- Add web/dist/ to .gitignore
This commit is contained in:
user
2026-03-10 02:58:48 -07:00
committed by clawbot
parent 5d0b362c0f
commit 5b07730bd2
5 changed files with 66 additions and 481 deletions

1
.gitignore vendored
View File

@@ -36,3 +36,4 @@ data.db
debug.log
/neoirc-cli
web/node_modules/
web/dist/

2
web/dist/app.js vendored

File diff suppressed because one or more lines are too long

13
web/dist/index.html vendored
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@@ -1,13 +0,0 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>NeoIRC</title>
<link rel="stylesheet" href="/style.css">
</head>
<body>
<div id="root"></div>
<script type="module" src="/app.js"></script>
</body>
</html>

466
web/dist/style.css vendored
View File

@@ -1,466 +0,0 @@
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
:root {
--bg: #0a0e14;
--bg-panel: #0d1117;
--bg-input: #0d1117;
--bg-tab: #161b22;
--bg-tab-active: #0d1117;
--bg-topic: #0d1117;
--text: #c9d1d9;
--text-dim: #6e7681;
--text-bright: #e6edf3;
--accent: #58a6ff;
--accent-dim: #1f6feb;
--border: #21262d;
--system: #7d8590;
--action: #d2a8ff;
--warn: #d29922;
--error: #f85149;
--unread: #f0883e;
--nick-brackets: #6e7681;
--timestamp: #484f58;
--input-bg: #161b22;
--prompt: #3fb950;
--tab-indicator: #58a6ff;
--user-list-bg: #0d1117;
--user-list-header: #484f58;
}
html,
body,
#root {
height: 100%;
font-family: "JetBrains Mono", "Cascadia Code", "Fira Code", "SF Mono",
"Consolas", "Liberation Mono", "Courier New", monospace;
font-size: 13px;
background: var(--bg);
color: var(--text);
overflow: hidden;
}
/* ============================================
Login Screen
============================================ */
.login-screen {
display: flex;
align-items: center;
justify-content: center;
height: 100%;
background: var(--bg);
}
.login-box {
text-align: center;
max-width: 360px;
width: 100%;
padding: 32px;
}
.login-box h1 {
color: var(--accent);
font-size: 1.8em;
margin-bottom: 16px;
font-weight: 400;
}
.login-box .motd {
color: var(--accent);
font-size: 11px;
margin-bottom: 20px;
text-align: left;
white-space: pre;
font-family: inherit;
line-height: 1.2;
overflow-x: auto;
}
.login-box form {
display: flex;
flex-direction: column;
gap: 8px;
align-items: stretch;
}
.login-box label {
color: var(--text-dim);
text-align: left;
font-size: 12px;
}
.login-box input {
padding: 8px 12px;
font-family: inherit;
font-size: 14px;
background: var(--input-bg);
border: 1px solid var(--border);
color: var(--text-bright);
border-radius: 3px;
outline: none;
}
.login-box input:focus {
border-color: var(--accent-dim);
}
.login-box button {
padding: 8px 16px;
font-family: inherit;
font-size: 14px;
background: var(--accent-dim);
border: none;
color: var(--text-bright);
border-radius: 3px;
cursor: pointer;
margin-top: 4px;
}
.login-box button:hover {
background: var(--accent);
}
.login-box .error {
color: var(--error);
font-size: 12px;
margin-top: 8px;
}
/* ============================================
IRC App Layout
============================================ */
.irc-app {
display: flex;
flex-direction: column;
height: 100%;
overflow: hidden;
}
/* ============================================
Tab Bar
============================================ */
.tab-bar {
display: flex;
background: var(--bg-tab);
border-bottom: 1px solid var(--border);
flex-shrink: 0;
height: 32px;
align-items: stretch;
}
.tabs {
display: flex;
overflow-x: auto;
flex: 1;
scrollbar-width: none;
}
.tabs::-webkit-scrollbar {
display: none;
}
.tab {
display: flex;
align-items: center;
padding: 0 12px;
cursor: pointer;
color: var(--text-dim);
white-space: nowrap;
user-select: none;
border-right: 1px solid var(--border);
font-size: 12px;
gap: 4px;
position: relative;
}
.tab:hover {
color: var(--text);
background: rgba(255, 255, 255, 0.03);
}
.tab.active {
color: var(--text-bright);
background: var(--bg-tab-active);
border-bottom: 2px solid var(--tab-indicator);
margin-bottom: -1px;
}
.tab.has-unread .tab-label {
color: var(--unread);
font-weight: bold;
}
.tab .unread-count {
color: var(--unread);
font-size: 11px;
font-weight: bold;
}
.tab-close {
color: var(--text-dim);
font-size: 14px;
line-height: 1;
margin-left: 2px;
}
.tab-close:hover {
color: var(--error);
}
.status-area {
display: flex;
align-items: center;
gap: 10px;
padding: 0 12px;
flex-shrink: 0;
font-size: 12px;
}
.status-nick {
color: var(--accent);
font-weight: bold;
}
.status-warn {
color: var(--warn);
animation: blink 1.5s ease-in-out infinite;
}
@keyframes blink {
0%,
100% {
opacity: 1;
}
50% {
opacity: 0.4;
}
}
/* ============================================
Topic Bar
============================================ */
.topic-bar {
padding: 4px 12px;
background: var(--bg-topic);
border-bottom: 1px solid var(--border);
font-size: 12px;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
flex-shrink: 0;
line-height: 1.5;
}
.topic-label {
color: var(--text-dim);
}
.topic-text {
color: var(--text);
}
/* ============================================
Main Content Area
============================================ */
.main-area {
display: flex;
flex: 1;
overflow: hidden;
min-height: 0;
}
/* ============================================
Messages Panel
============================================ */
.messages-panel {
flex: 1;
display: flex;
flex-direction: column;
overflow: hidden;
min-width: 0;
}
.messages-scroll {
flex: 1;
overflow-y: auto;
padding: 4px 8px;
scrollbar-width: thin;
scrollbar-color: var(--border) transparent;
}
.messages-scroll::-webkit-scrollbar {
width: 8px;
}
.messages-scroll::-webkit-scrollbar-track {
background: transparent;
}
.messages-scroll::-webkit-scrollbar-thumb {
background: var(--border);
border-radius: 4px;
}
/* ============================================
Message Lines
============================================ */
.message {
padding: 1px 0;
line-height: 1.4;
white-space: pre-wrap;
word-wrap: break-word;
font-size: 13px;
}
.message .timestamp {
color: var(--timestamp);
font-size: 12px;
}
.message .nick {
font-weight: bold;
}
.message .content {
color: var(--text);
}
/* System messages (joins, parts, quits, etc.) */
.system-message {
color: var(--system);
}
.system-message .system-text {
color: var(--system);
}
/* /me action messages */
.action-message .action-text {
color: var(--action);
}
/* ============================================
User List (Right Panel)
============================================ */
.user-list {
width: 160px;
background: var(--user-list-bg);
border-left: 1px solid var(--border);
display: flex;
flex-direction: column;
flex-shrink: 0;
overflow: hidden;
}
.user-list-header {
padding: 6px 10px;
color: var(--user-list-header);
font-size: 11px;
text-transform: uppercase;
letter-spacing: 0.5px;
border-bottom: 1px solid var(--border);
flex-shrink: 0;
}
.user-list-entries {
overflow-y: auto;
padding: 4px 0;
flex: 1;
scrollbar-width: thin;
scrollbar-color: var(--border) transparent;
}
.nick-entry {
padding: 2px 10px;
font-size: 12px;
cursor: pointer;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
line-height: 1.5;
}
.nick-entry:hover {
background: rgba(255, 255, 255, 0.04);
}
.nick-prefix {
color: var(--text-dim);
display: inline-block;
width: 1ch;
text-align: right;
margin-right: 1px;
}
.nick-name {
font-weight: normal;
}
/* ============================================
Input Line (Bottom)
============================================ */
.input-line {
display: flex;
align-items: center;
background: var(--input-bg);
border-top: 1px solid var(--border);
flex-shrink: 0;
height: 36px;
padding: 0 8px;
gap: 6px;
}
.input-prompt {
color: var(--prompt);
font-size: 13px;
flex-shrink: 0;
white-space: nowrap;
}
.input-line input {
flex: 1;
padding: 4px 0;
font-family: inherit;
font-size: 13px;
background: transparent;
border: none;
color: var(--text-bright);
outline: none;
caret-color: var(--accent);
}
.input-line input::placeholder {
color: var(--text-dim);
font-style: italic;
}
/* ============================================
Responsive
============================================ */
@media (max-width: 600px) {
.user-list {
display: none;
}
.tab {
padding: 0 8px;
font-size: 11px;
}
.input-prompt {
font-size: 12px;
}
}

View File

@@ -8,6 +8,56 @@ const MEMBER_REFRESH_INTERVAL = 10000;
const ACTION_PREFIX = "\x01ACTION ";
const ACTION_SUFFIX = "\x01";
// Hashcash proof-of-work helpers using Web Crypto API.
function checkLeadingZeros(hashBytes, bits) {
let count = 0;
for (let i = 0; i < hashBytes.length; i++) {
if (hashBytes[i] === 0) {
count += 8;
continue;
}
let b = hashBytes[i];
while ((b & 0x80) === 0) {
count++;
b <<= 1;
}
break;
}
return count >= bits;
}
async function mintHashcash(bits, resource) {
const encoder = new TextEncoder();
const now = new Date();
const date =
String(now.getUTCFullYear()).slice(2) +
String(now.getUTCMonth() + 1).padStart(2, "0") +
String(now.getUTCDate()).padStart(2, "0");
const prefix = `1:${bits}:${date}:${resource}::`;
let nonce = Math.floor(Math.random() * 0x100000);
const batchSize = 1024;
for (;;) {
const stamps = [];
const hashPromises = [];
for (let i = 0; i < batchSize; i++) {
const stamp = prefix + (nonce + i).toString(16);
stamps.push(stamp);
hashPromises.push(
crypto.subtle.digest("SHA-256", encoder.encode(stamp)),
);
}
const hashes = await Promise.all(hashPromises);
for (let i = 0; i < hashes.length; i++) {
if (checkLeadingZeros(new Uint8Array(hashes[i]), bits)) {
return stamps[i];
}
}
nonce += batchSize;
}
}
function api(path, opts = {}) {
const token = localStorage.getItem("neoirc_token");
const headers = {
@@ -60,12 +110,16 @@ function LoginScreen({ onLogin }) {
const [motd, setMotd] = useState("");
const [serverName, setServerName] = useState("NeoIRC");
const inputRef = useRef();
const hashcashBitsRef = useRef(0);
const hashcashResourceRef = useRef("neoirc");
useEffect(() => {
api("/server")
.then((s) => {
if (s.name) setServerName(s.name);
if (s.motd) setMotd(s.motd);
hashcashBitsRef.current = s.hashcash_bits || 0;
if (s.name) hashcashResourceRef.current = s.name;
})
.catch(() => {});
const saved = localStorage.getItem("neoirc_token");
@@ -81,9 +135,20 @@ function LoginScreen({ onLogin }) {
e.preventDefault();
setError("");
try {
const extraHeaders = {};
if (hashcashBitsRef.current > 0) {
setError("Computing proof-of-work...");
const stamp = await mintHashcash(
hashcashBitsRef.current,
hashcashResourceRef.current,
);
extraHeaders["X-Hashcash"] = stamp;
setError("");
}
const res = await api("/session", {
method: "POST",
body: JSON.stringify({ nick: nick.trim() }),
headers: extraHeaders,
});
localStorage.setItem("neoirc_token", res.token);
onLogin(res.nick);