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ip whitelist

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wind-explorer
2026-08-11 02:02:39 +08:00
parent 6e0b0c92d1
commit b62c74b883
10 changed files with 270 additions and 13 deletions
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frontend/src/App.svelte
+3 -3
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@@ -1,7 +1,7 @@
<script lang="ts">
import {onMount} from 'svelte';import {backoff,mergeLines,type LogLine,type Page} from './lib';
let lines:LogLine[]=[];let before:string|null=null;let hasMore=true;let state:'Connecting'|'Live'|'Reconnecting'|'Disconnected'|'Access denied'='Connecting';let viewport:HTMLDivElement;let atBottom=true;let unseen=0;let loading=false;let socket:WebSocket|null=null;let stopped=false;
async function fetchPage(cursor:string|null,limit=1000){const endpoint=cursor?`/api/logs/history?before=${encodeURIComponent(cursor)}&limit=${limit}`:`/api/logs/recent?limit=${limit}`;const response=await fetch(endpoint);if(response.status===403){state='Access denied';throw new Error('denied')}if(!response.ok)throw new Error('history');return response.json() as Promise<Page>}
let lines:LogLine[]=[];let before:string|null=null;let hasMore=true;let state:'Connecting'|'Live'|'Reconnecting'|'Disconnected'|'Access denied'='Connecting';let viewport:HTMLDivElement;let atBottom=true;let unseen=0;let loading=false;let socket:WebSocket|null=null;let stopped=false;let clientIp:string|null=null;let showIp=false;
async function fetchPage(cursor:string|null,limit=1000){const endpoint=cursor?`/api/logs/history?before=${encodeURIComponent(cursor)}&limit=${limit}`:`/api/logs/recent?limit=${limit}`;const response=await fetch(endpoint);if(response.status===403){const denial=await response.json().catch(()=>null) as {client_ip?:string}|null;clientIp=denial?.client_ip??null;state='Access denied';throw new Error('denied')}if(!response.ok)throw new Error('history');return response.json() as Promise<Page>}
async function initial(){const page=await fetchPage(null);lines=mergeLines([],page.lines);before=page.next_before;hasMore=page.has_more;requestAnimationFrame(scrollLive);}
async function older(){if(loading||!hasMore||!before)return;loading=true;const oldHeight=viewport.scrollHeight;try{const page=await fetchPage(before);const ids=new Set(lines.map(x=>x.id));lines=[...page.lines.filter(x=>!ids.has(x.id)),...lines];before=page.next_before;hasMore=page.has_more;requestAnimationFrame(()=>viewport.scrollTop+=viewport.scrollHeight-oldHeight);}finally{loading=false}}
function connect(attempt=0){if(stopped||state==='Access denied')return;state=attempt?'Reconnecting':'Connecting';const scheme=location.protocol==='https:'?'wss':'ws';socket=new WebSocket(`${scheme}://${location.host}/api/live`);socket.onopen=async()=>{state='Live';try{const gap=await fetchPage(null,1000);lines=mergeLines(lines,gap.lines);if(atBottom)requestAnimationFrame(scrollLive)}catch{}};socket.onmessage=(event)=>{const message=JSON.parse(event.data);if(message.type==='log_lines'){lines=mergeLines(lines,message.lines);if(atBottom)requestAnimationFrame(scrollLive);else unseen+=message.lines.length}if(message.type==='resync_required')socket?.close()};socket.onclose=()=>{if(stopped||state==='Access denied')return;state='Reconnecting';setTimeout(()=>connect(attempt+1),backoff(attempt))};socket.onerror=()=>socket?.close()}
@@ -9,4 +9,4 @@ function scrollLive(){viewport?.scrollTo({top:viewport.scrollHeight});unseen=0}
function scroll(){atBottom=viewport.scrollHeight-viewport.scrollTop-viewport.clientHeight<40;if(atBottom)unseen=0;if(viewport.scrollTop<200)older()}
onMount(()=>{initial().then(()=>connect()).catch(()=>{});return()=>{stopped=true;socket?.close()}})
</script>
{#if state==='Access denied'}<main class="denied"><h1>Access denied</h1><p>This viewer is available only from an IP address associated with a currently whitelisted player who has successfully joined the server.</p></main>{:else}<main><header><div><span class:live={state==='Live'} class="dot"></span><strong>{state}</strong></div><span>{lines.length.toLocaleString()} lines retained</span></header><!-- svelte-ignore a11y_no_noninteractive_tabindex --><div class="log" bind:this={viewport} on:scroll={scroll} tabindex="0" role="log" aria-live="off" aria-label="Minecraft server log">{#if loading}<div class="loading">Loading older logs…</div>{/if}{#each lines as line (line.id)}<div class="line"><span class="time">{line.timestamp??''}</span><span>{line.text}</span></div>{/each}</div>{#if unseen}<button on:click={scrollLive}>{unseen} new {unseen===1?'line':'lines'} ↓</button>{/if}</main>{/if}
{#if state==='Access denied'}<main class="denied"><section class="denied-card"><div class="denied-icon" aria-hidden="true">!</div><h1>Access denied</h1><p>This viewer is available only from an IP address associated with a currently whitelisted player who has successfully joined the server.</p>{#if clientIp}<div class="ip-row"><span>Your IP</span>{#if showIp}<code>{clientIp}</code>{:else}<button class="show-ip" on:click={()=>showIp=true}>Show IP</button>{/if}</div>{/if}</section></main>{:else}<main><header><div><span class:live={state==='Live'} class="dot"></span><strong>{state}</strong></div><span>{lines.length.toLocaleString()} lines retained</span></header><!-- svelte-ignore a11y_no_noninteractive_tabindex --><div class="log" bind:this={viewport} on:scroll={scroll} tabindex="0" role="log" aria-live="off" aria-label="Minecraft server log">{#if loading}<div class="loading">Loading older logs…</div>{/if}{#each lines as line (line.id)}<div class="line"><span class="time">{line.timestamp??''}</span><span>{line.text}</span></div>{/each}</div>{#if unseen}<button on:click={scrollLive}>{unseen} new {unseen===1?'line':'lines'} ↓</button>{/if}</main>{/if}
frontend/src/style.css
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:root{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#dce5df;background:#0b0e0c;font-synthesis:none}*{box-sizing:border-box}body{margin:0;overflow:hidden}main{height:100dvh;display:flex;flex-direction:column;background:radial-gradient(circle at 80% -20%,#193226 0,transparent 38%),#0b0e0c}header{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid #26322b;color:#8e9c93;font-size:12px}header div{display:flex;gap:9px;align-items:center;color:#dce5df}.dot{width:8px;height:8px;border-radius:50%;background:#b07847;box-shadow:0 0 0 3px #b0784722}.dot.live{background:#58d68d;box-shadow:0 0 0 3px #58d68d22}.log{flex:1;overflow:auto;padding:12px 0;scrollbar-color:#344139 transparent}.line{display:grid;grid-template-columns:88px minmax(max-content,1fr);gap:14px;padding:2px 18px;min-height:22px;line-height:18px;font-size:13px;white-space:pre}.line:hover{background:#ffffff08}.time{color:#60766a;user-select:none}.loading{text-align:center;color:#8e9c93;padding:8px}button{position:fixed;right:22px;bottom:22px;border:1px solid #537962;border-radius:18px;background:#193226;color:#dce5df;padding:9px 14px;font:inherit;cursor:pointer}.denied{justify-content:center;align-items:center;padding:24px;text-align:center}.denied h1{font:500 28px system-ui;margin:0 0 12px}.denied p{font:14px/1.6 system-ui;color:#9ba9a0;max-width:580px}@media(max-width:600px){header{padding:0 10px}.line{grid-template-columns:0 minmax(max-content,1fr);gap:0;padding:2px 10px}.time{visibility:hidden}}
:root{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#dce5df;background:#0b0e0c;font-synthesis:none}*{box-sizing:border-box}body{margin:0;overflow:hidden}main{height:100dvh;display:flex;flex-direction:column;background:radial-gradient(circle at 80% -20%,#193226 0,transparent 38%),#0b0e0c}header{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid #26322b;color:#8e9c93;font-size:12px}header div{display:flex;gap:9px;align-items:center;color:#dce5df}.dot{width:8px;height:8px;border-radius:50%;background:#b07847;box-shadow:0 0 0 3px #b0784722}.dot.live{background:#58d68d;box-shadow:0 0 0 3px #58d68d22}.log{flex:1;overflow:auto;padding:12px 0;scrollbar-color:#344139 transparent}.line{display:grid;grid-template-columns:88px minmax(max-content,1fr);gap:14px;padding:2px 18px;min-height:22px;line-height:18px;font-size:13px;white-space:pre}.line:hover{background:#ffffff08}.time{color:#60766a;user-select:none}.loading{text-align:center;color:#8e9c93;padding:8px}button{position:fixed;right:22px;bottom:22px;border:1px solid #537962;border-radius:18px;background:#193226;color:#dce5df;padding:9px 14px;font:inherit;cursor:pointer}.denied{justify-content:center;align-items:center;padding:24px;text-align:center}.denied-card{width:min(100%,620px);padding:40px;border:1px solid #29362f;border-radius:12px;background:#101512;box-shadow:0 20px 60px #0006}.denied-icon{display:grid;place-items:center;width:44px;height:44px;margin:0 auto 18px;border:1px solid #9a6337;border-radius:50%;color:#e5a364;font:600 22px system-ui;background:#9a633719}.denied h1{font:500 28px system-ui;margin:0 0 12px}.denied p{font:14px/1.6 system-ui;color:#9ba9a0;max-width:580px;margin:0 auto}.ip-row{display:flex;align-items:center;justify-content:space-between;min-height:54px;margin-top:28px;padding-top:20px;border-top:1px solid #29362f;color:#829188;font-size:12px;text-align:left}.ip-row code{color:#dce5df;font:13px ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.ip-row .show-ip{position:static;border:0;border-radius:4px;background:transparent;color:#72a7e8;padding:6px 0;text-decoration:underline;text-underline-offset:3px}.ip-row .show-ip:hover{color:#9bc1f0}@media(max-width:600px){header{padding:0 10px}.line{grid-template-columns:0 minmax(max-content,1fr);gap:0;padding:2px 10px}.time{visibility:hidden}.denied-card{padding:30px 22px}}