519 lines
16 KiB
Bash
519 lines
16 KiB
Bash
#!/bin/sh
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# eWOL — enhanced Wake-On-LAN UI for OpenWrt (vanilla uhttpd) or GL.iNet devices
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#
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# Features:
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# - Dark/light UI (switch, remembers preference, default dark)
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# - Font size zoom +/- buttons (remembers preference)
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# - Simple Lua CGI API using LuCI libs
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# - Self-contained in /www/ewol ; single symlink into /www/cgi-bin
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#
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# Optional:
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# - Set ALLOW_PUBLIC=0 to restrict to LAN only (basic check).
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# - You can tweak LAN_IF and PING_TIMEOUT if needed.
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# (GL.iNet devices usually have br-lan as default, but please double-check yours first.)
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set -eu
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EWOL_DIR="/www/ewol"
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CGI_LINK="/www/cgi-bin/ewol-ctl"
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LAN_IF="br-lan"
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PING_TIMEOUT=1
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ALLOW_PUBLIC=0
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mkdir -p "$EWOL_DIR"
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# ---------------
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# index.html
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# ---------------
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cat > "$EWOL_DIR/index.html" << 'EOF'
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
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<link rel="icon" type="image/png" href="/luci-static/bootstrap/favicon.png"/>
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<link rel="stylesheet" href="/ewol/style.css"/>
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<title>eWOL: enhanced Wake-On-LAN</title>
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</head>
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<body>
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<header>
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<div class="wrap row">
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<h1>eWOL - <span class="muted">enhanced Wake-On-LAN</span></h1>
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<div class="row" style="gap:8px">
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<span id="status" class="pill">Idle</span>
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<label class="toggle"><input id="themeToggle" type="checkbox" checked/> Dark mode</label>
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<button id="fontPlus" class="font-resize-btn" title="Increase font size">A+</button>
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<button id="fontMinus" class="font-resize-btn" title="Decrease font size">A-</button>
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<button id="refresh">Refresh</button>
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</div>
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</div>
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</header>
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<main class="wrap">
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<div id="err" class="card" style="display:none"></div>
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<div class="card">
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<table id="grid">
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<thead>
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<tr>
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<th class="sortable" data-key="name">Hostname</th>
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<th class="sortable" data-key="mac">MAC</th>
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<th class="sortable" data-key="ip">IP</th>
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<th>Status</th>
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<th class="center">Action</th>
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</tr>
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</thead>
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<tbody></tbody>
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</table>
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</div>
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<div class="footer">
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Served from <code>/www/ewol</code><br/>
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API: <code>/cgi-bin/ewol-ctl</code><br/>
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<a href="https://github.com/domomg/ewol" target="_blank" rel="noopener">GitHub: domomg/ewol</a>
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</div>
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</main>
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<script src="/ewol/script.js" defer></script>
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</body>
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</html>
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EOF
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# ---------------------------
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# style.css
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# ---------------------------
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cat > "$EWOL_DIR/style.css" << 'EOF'
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:root {
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--bg: #0b0c10; --fg: #e5e7eb; --muted:#9ca3af; --card:#111827; --border:#1f2937; --accent:#60a5fa; --ok:#22c55e; --err:#ef4444;
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--base-font-size: 14px;
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}
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@media (prefers-color-scheme: light){
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:root { --bg:#f7fafc; --fg:#111827; --muted:#6b7280; --card:#ffffff; --border:#e5e7eb; --accent:#2563eb; --ok:#16a34a; --err:#dc2626; }
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}
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[data-theme="light"]:root { --bg:#f7fafc; --fg:#111827; --muted:#6b7280; --card:#ffffff; --border:#e5e7eb; --accent:#2563eb; --ok:#16a34a; --err:#dc2626; }
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[data-theme="dark"]:root { --bg:#0b0c10; --fg:#e5e7eb; --muted:#9ca3af; --card:#111827; --border:#1f2937; --accent:#60a5fa; --ok:#22c55e; --err:#ef4444; }
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* { box-sizing: border-box }
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body {
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margin:0;
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font-size: var(--base-font-size, 14px);
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line-height: 1.45;
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font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, sans-serif;
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background:var(--bg); color:var(--fg);
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}
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header { position: sticky; top:0; z-index:10; backdrop-filter: blur(6px); background: color-mix(in oklab, var(--bg) 88%, transparent); border-bottom:1px solid var(--border); }
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.wrap { max-width: 980px; margin: 0 auto; padding: 16px; }
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h1 { margin:0; font-size: 20px; }
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.muted { color: var(--muted); }
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.row { display:flex; gap:12px; align-items:center; justify-content:space-between; flex-wrap:wrap; }
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button, .btn { cursor:pointer; border:1px solid var(--border); background:var(--card); color:var(--fg); padding:6px 10px; border-radius:10px; }
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button:hover { border-color: var(--accent); }
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.pill { font-size:12px; padding:3px 8px; border-radius:999px; border:1px solid var(--border); }
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.ok { color: var(--ok); }
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.err { color: var(--err); }
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main { padding:16px; }
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.card { background:var(--card); border:1px solid var(--border); border-radius:14px; padding: 12px; }
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table { width:100%; border-collapse: collapse; }
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th, td { padding: 10px; border-bottom:1px solid var(--border); text-align:left; }
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th { font-weight:600; user-select:none; }
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th.sortable { cursor:pointer; }
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tr:hover td { background: color-mix(in oklab, var(--card) 92%, var(--accent) 8% ); }
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.actions { display:flex; gap:8px; }
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.center { text-align:center; }
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.footer { color: var(--muted); font-size:12px; padding:12px 0 20px }
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.toggle { display:inline-flex; align-items:center; gap:8px }
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img.status-icon { height:18px;vertical-align:middle;margin-right:3px; }
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.font-resize-btn { font-size:16px; min-width:32px; }
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EOF
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# ---------------
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# script.js
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# ---------------
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cat > "$EWOL_DIR/script.js" << 'EOF'
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'use strict';
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(function(){
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const api = '/cgi-bin/ewol-ctl';
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const $ = (sel, el=document)=>el.querySelector(sel);
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// Status icons for eWOL, GL.iNet default LuCI resources
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const ICONS = {
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Online: '/luci-static/resources/icons/port_up.png',
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Offline: '/luci-static/resources/icons/port_down.png',
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Loading: '/luci-static/resources/icons/loading.gif',
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Sent: '/luci-static/resources/icons/port_up.png',
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Error: '/luci-static/resources/icons/signal-none.png'
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};
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const state = { rows: [], sortKey:'name', sortDir:1, statusMap: {} };
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// --- FONT SIZE LOGIC ---
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const FONT_MIN = 10, FONT_MAX = 22, FONT_STEP = 2, FONT_DEFAULT = 14;
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function setFontSize(size) {
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size = Math.max(FONT_MIN, Math.min(FONT_MAX, size));
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document.documentElement.style.setProperty('--base-font-size', size + 'px');
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try { localStorage.setItem('ewol-font-size', size); } catch(e){}
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}
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function loadFontSize() {
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let size = FONT_DEFAULT;
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try {
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size = parseInt(localStorage.getItem('ewol-font-size')) || FONT_DEFAULT;
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} catch(e){}
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setFontSize(size);
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}
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function handleFontPlus() {
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let size = parseInt(getComputedStyle(document.documentElement).getPropertyValue('--base-font-size')) || FONT_DEFAULT;
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setFontSize(size + FONT_STEP);
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}
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function handleFontMinus() {
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let size = parseInt(getComputedStyle(document.documentElement).getPropertyValue('--base-font-size')) || FONT_DEFAULT;
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setFontSize(size - FONT_STEP);
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}
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function setStatus(text, cls){
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const pill = $('#status');
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pill.textContent = text;
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pill.className = 'pill ' + (cls||'');
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}
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function showError(msg){
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const box = $('#err');
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box.style.display = 'block';
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box.textContent = msg;
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setStatus('Error', 'err');
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}
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function sortRows(){
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const k = state.sortKey, d = state.sortDir;
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state.rows.sort((a,b)=>{
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const x = a[k] ?? '', y = b[k] ?? '';
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return (String(x).localeCompare(String(y), undefined, {numeric:true})) * d;
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});
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}
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function render(){
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sortRows();
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const tb = $('#grid tbody');
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tb.innerHTML = '';
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for(const r of state.rows){
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const statusText = state.statusMap[r.name] || '';
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let statusIcon = '';
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let label = '';
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let statusClass = '';
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if(statusText === 'Online') {
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statusIcon = ICONS.Online; label = 'Online'; statusClass = 'ok';
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} else if(statusText === 'Offline') {
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statusIcon = ICONS.Offline; label = 'Offline'; statusClass = 'err';
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} else if(statusText === 'Loading') {
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statusIcon = ICONS.Loading; label = ''; statusClass = '';
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} else if(statusText === 'Error') {
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statusIcon = ICONS.Error; label = 'Error'; statusClass = 'err';
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} else if(statusText === 'Sent') {
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statusIcon = ICONS.Sent; label = 'Sent!'; statusClass = 'ok';
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}
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// For Sent, show ASCII green check and "Sent!", we don't have any usable resource on GL.iNet devices
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const iconHtml = (label === 'Sent!') ? '<span style="color:var(--ok);font-weight:bold;">✔</span> ' : (statusIcon ? `<img class="status-icon" src="${statusIcon}" alt="">` : '');
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const tr = document.createElement('tr');
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tr.innerHTML = `
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<td>${r.name||''}</td>
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<td><code>${r.mac||''}</code></td>
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<td><code>${r.ip||''}</code></td>
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<td><span id="status-${r.name}" class="${statusClass}">${iconHtml}${label}</span></td>
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<td class="center actions">
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<button data-act="wake" data-host="${r.name}">Wake</button>
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<button data-act="ping" data-host="${r.name}">Check</button>
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</td>`;
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tb.appendChild(tr);
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}
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}
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async function call(cmd, params={}){
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const url = new URL(location.origin + api);
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url.searchParams.set('cmd', cmd);
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Object.entries(params).forEach(([k,v])=>url.searchParams.set(k,v));
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const res = await fetch(url, { cache:'no-store' });
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if(!res.ok) throw new Error('HTTP '+res.status);
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const data = await res.json();
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if(!data.ok) throw new Error(data.err||'Unknown error');
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return data.data;
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}
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async function loadHosts(){
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try{
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setStatus('Loading…');
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const data = await call('hl');
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state.rows = data;
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state.statusMap = {};
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render();
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setStatus('Ready');
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}catch(e){ showError('Failed to load hosts: '+e.message); }
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}
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async function wake(name){
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state.statusMap[name] = 'Sent';
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render();
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setStatus('Waking…');
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try{
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await call('hw', { host:name });
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setStatus('Magic packet sent', 'ok');
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}catch(e){
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state.statusMap[name] = 'Error';
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render();
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showError('Wake failed: '+e.message);
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}
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}
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async function ping(name){
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state.statusMap[name] = 'Loading';
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render();
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setStatus('Checking…');
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try{
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const data = await call('ping', { host:name });
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const online = !!data.online;
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state.statusMap[name] = online ? 'Online' : 'Offline';
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render();
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setStatus('Ready', online ? 'ok' : 'err');
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}catch(e){
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state.statusMap[name] = 'Error';
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render();
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showError('Ping failed: '+e.message);
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}
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}
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function handleClick(ev){
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const btn = ev.target.closest('button[data-act]');
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if(!btn) return;
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const host = btn.dataset.host;
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if(btn.dataset.act==='wake') wake(host);
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if(btn.dataset.act==='ping') ping(host);
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}
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// --- THEME LOGIC ---
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function applyTheme(theme) {
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document.documentElement.setAttribute('data-theme', theme);
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$('#themeToggle').checked = theme === 'dark';
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try { localStorage.setItem('theme', theme); } catch(e){}
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}
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function getSystemTheme() {
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return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
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}
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function loadTheme() {
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let theme = 'dark';
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try {
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theme = localStorage.getItem('theme') || getSystemTheme();
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} catch(e){
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theme = getSystemTheme();
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}
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applyTheme(theme);
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}
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function handleThemeToggle() {
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const theme = $('#themeToggle').checked ? 'dark' : 'light';
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applyTheme(theme);
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}
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function handleSort(ev){
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const th = ev.target.closest('th.sortable');
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if(!th) return;
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const key = th.dataset.key;
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if(key){
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if(state.sortKey === key){
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state.sortDir = -state.sortDir;
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}else{
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state.sortKey = key; state.sortDir = 1;
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}
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render();
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}
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}
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function init(){
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$('#grid').addEventListener('click', handleClick);
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$('#grid thead').addEventListener('click', handleSort);
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$('#refresh').addEventListener('click', loadHosts);
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// Theme logic
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$('#themeToggle').addEventListener('change', handleThemeToggle);
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loadTheme();
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// Font size logic
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$('#fontPlus').addEventListener('click', handleFontPlus);
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$('#fontMinus').addEventListener('click', handleFontMinus);
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loadFontSize();
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loadHosts();
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}
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window.addEventListener('DOMContentLoaded', init);
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})();
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EOF
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# ---------------------------
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# api.lua (CGI) -- fix ping for all OpenWrt
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# ---------------------------
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cat > "$EWOL_DIR/api.lua" << 'EOF'
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#!/usr/bin/lua
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-- eWOL CGI API
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local json = require('luci.jsonc')
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local nixio = require('nixio')
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local sys = require('luci.sys')
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local ip = require('luci.ip')
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local DEVICES_JSON = '/www/ewol/devices.json'
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local LAN_IF = 'br-lan'
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local PING_TIMEOUT = 1
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local ALLOW_PUBLIC = 0 -- Set 1 to allow WAN/public
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local function in_lan(addr)
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local a = ip.IPv4(addr)
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local dev = ip.IPv4(ip.getaddr(LAN_IF) or '0.0.0.0/0')
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return a and dev and a:is4() and dev:contains(a)
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end
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local function enforce_origin()
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if ALLOW_PUBLIC == 1 then return true end
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local ra = nixio.getenv('REMOTE_ADDR') or ''
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if ra == '' then return false end
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if in_lan(ra) then return true end
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return false
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end
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local function wol_send(mac)
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return sys.call(string.format("etherwake -D -i %s %q >/dev/null 2>&1", LAN_IF, mac)) == 0
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end
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-- Use system ping for best compatibility, not luci.sys.ping
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local function ping_host(ipaddr)
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return os.execute("ping -c 1 -w 1 " .. ipaddr .. " >/dev/null 2>&1") == 0
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end
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local function load_devices()
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local f = io.open(DEVICES_JSON, 'r')
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if not f then return nil end
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local data = f:read('*a')
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f:close()
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return json.parse(data)
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end
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local function json_out(tbl)
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io.write('Status: 200 OK\r\n')
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io.write('Content-Type: application/json\r\n\r\n')
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io.write(json.stringify(tbl))
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end
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local function main()
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local args = require('luci.http').urldecode_params(nixio.getenv('QUERY_STRING') or '')
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local ret = { ok=false }
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if not enforce_origin() then
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ret.err = 'Forbidden: not from LAN';
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return json_out(ret)
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end
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local devices = load_devices()
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if not devices then ret.err = 'Missing devices.json'; return json_out(ret) end
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local cmd = args.cmd or 'hl'
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if cmd == 'hl' then
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local rows = {}
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for name, info in pairs(devices) do
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rows[#rows+1] = { name=name, mac=info.mac, ip=info.ip }
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end
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ret.ok = true; ret.data = rows
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elseif cmd == 'hw' then
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local h = devices[args.host]
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if not h then ret.err = 'Unknown host'
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else
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if wol_send(h.mac) then
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ret.ok = true; ret.data = { sent=true }
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else ret.err = 'WoL command failed' end
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end
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elseif cmd == 'ping' then
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local h = devices[args.host]
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if not h or not h.ip then ret.err = 'Unknown host or missing IP'
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else
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local online = ping_host(h.ip)
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ret.ok = true; ret.data = { online = online }
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end
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else
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ret.err = 'Unknown command'
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end
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return json_out(ret)
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end
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main()
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EOF
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# ---------------------------
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# devices.json sample file
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# ---------------------------
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if [ ! -f "$EWOL_DIR/devices.json" ]; then
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cat > "$EWOL_DIR/devices.json" << 'EOF'
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{
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"PC1": {
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"mac": "11:11:11:11:11:11",
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"ip": "192.168.1.101"
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},
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"PC2": {
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"mac": "22:22:22:22:22:22",
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"ip": "192.168.1.102"
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},
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"PC3": {
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"mac": "33:33:33:33:33:33",
|
|
"ip": "192.168.1.103"
|
|
}
|
|
}
|
|
EOF
|
|
fi
|
|
|
|
# ---------------------------
|
|
# permissions + cgi link
|
|
# ---------------------------
|
|
chmod 644 "$EWOL_DIR/index.html"
|
|
chmod 644 "$EWOL_DIR/script.js"
|
|
chmod 644 "$EWOL_DIR/style.css"
|
|
chmod 644 "$EWOL_DIR/devices.json"
|
|
chmod 755 "$EWOL_DIR/api.lua"
|
|
[ -L "$CGI_LINK" ] || ln -s "$EWOL_DIR/api.lua" "$CGI_LINK"
|
|
|
|
cat <<EOF
|
|
eWOL installed!
|
|
|
|
----------------------------------------------------------------------------
|
|
Next steps:
|
|
1) Edit $EWOL_DIR/devices.json with your hosts:
|
|
{
|
|
"office-pc": { "mac": "AA:BB:CC:DD:EE:FF", "ip": "192.168.1.100" },
|
|
"nas": { "mac": "11:22:33:44:55:66", "ip": "192.168.1.101" }
|
|
}
|
|
|
|
2) Install etherwake if missing:
|
|
opkg update && opkg install etherwake
|
|
|
|
3) Open http://<router-ip>/ewol/index.html
|
|
|
|
Optional settings:
|
|
|
|
If you attempt to open http://<router-ip>/ewol and it gives 403, set
|
|
|
|
'option index_page "index.html"'
|
|
|
|
in /etc/config/uhttpd and restart uhttpd with
|
|
|
|
/etc/init.d/uhttpd restart
|
|
|
|
----------------------------------------------------------------------------
|
|
|
|
Optional security:
|
|
|
|
Default denies access from WAN. To allow public access, export
|
|
EWOL_ALLOW_PUBLIC=1 in uhttpd env or set ALLOW_PUBLIC=1 in api.lua.
|
|
----------------------------------------------------------------------------
|
|
EOF
|