feat: browser upload (raw-body, 8g cap) + click-to-download exports

Makes the digalot.fyi/rotogod/ proxy actually usable away from the box:
⬆ uploads land in samples/uploads and open; output list links through
GET /api/download/{name}. nginx side: 8g body cap, request buffering off.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

rotogod/server.py

@@ -2,11 +2,12 @@
 
 import contextlib
 import os
+import re
 import threading
 
 import cv2
 import numpy as np
-from fastapi import FastAPI, HTTPException
+from fastapi import FastAPI, HTTPException, Request
 from fastapi.responses import FileResponse, Response
 from pydantic import BaseModel
 
@@ -98,6 +99,41 @@ def open_clip(body: OpenBody):
     return meta()
 
 
+UPLOAD_CAP = 8 * 2 ** 30    # 8GB — plenty for ProRes sources on this box
+
+
+@app.post("/api/upload")
+async def upload(request: Request, name: str = "clip.mp4"):
+    """Raw-body clip upload from the browser; lands in samples/uploads and opens."""
+    safe = re.sub(r"[^A-Za-z0-9._-]", "_", os.path.basename(name)) or "clip.mp4"
+    updir = os.path.join(ROOT, "samples", "uploads")
+    os.makedirs(updir, exist_ok=True)
+    dest = os.path.join(updir, safe)
+    size = 0
+    try:
+        with open(dest, "wb") as f:
+            async for chunk in request.stream():
+                size += len(chunk)
+                if size > UPLOAD_CAP:
+                    raise HTTPException(413, "upload too large")
+                f.write(chunk)
+    except HTTPException:
+        os.remove(dest)
+        raise
+    if size == 0:
+        os.remove(dest)
+        raise HTTPException(400, "empty upload")
+    return open_clip(OpenBody(path=dest))
+
+
+@app.get("/api/download/{name}")
+def download(name: str):
+    p = os.path.join(export.OUTPUT_DIR, os.path.basename(name))
+    if not os.path.isfile(p):
+        raise HTTPException(404)
+    return FileResponse(p, filename=os.path.basename(p))
+
+
 @app.get("/api/meta")
 def meta():
     c = clip()

web/app.js

@@ -112,21 +112,36 @@ function updateLabels() {
 
 // ---------- clip ----------
 
+function applyMeta(m) {
+  meta = m;
+  $('#path').value = m.path;
+  localStorage.setItem('rotogod_path', m.path);
+  cur = 0; inF = 0; outF = m.nframes - 1;
+  roto = { active: false }; clicks = {}; renderObjects();
+  cv.width = m.width; cv.height = m.height;
+  $('#scrub').max = m.nframes - 1;
+  $('#thumbs').src = `api/thumbs?n=60&v=${Date.now()}`;
+  showFrame(0);
+  toast(`${m.width}×${m.height} · ${m.fps.toFixed(2)}fps · ${m.nframes}f`);
+}
+
 async function loadClip() {
   const path = $('#path').value.trim();
   if (!path) return toast('enter a clip path', true);
   stopPlay();
   try {
-    meta = await api('api/open', { path });
+    applyMeta(await api('api/open', { path }));
-  } catch (e) { return toast(e.message, true); }
+  } catch (e) { toast(e.message, true); }
-  localStorage.setItem('rotogod_path', path);
+}
-  cur = 0; inF = 0; outF = meta.nframes - 1;
+
-  roto = { active: false }; clicks = {}; renderObjects();
+async function uploadClip(f) {
-  cv.width = meta.width; cv.height = meta.height;
+  stopPlay();
-  $('#scrub').max = meta.nframes - 1;
+  toast(`uploading ${f.name}…`);
-  $('#thumbs').src = `api/thumbs?n=60&v=${Date.now()}`;
+  try {
-  await showFrame(0);
+    const r = await fetch('api/upload?name=' + encodeURIComponent(f.name), { method: 'POST', body: f });
-  toast(`${meta.width}×${meta.height} · ${meta.fps.toFixed(2)}fps · ${meta.nframes}f`);
+    if (!r.ok) throw new Error((await r.json().catch(() => ({}))).detail || r.statusText);
+    applyMeta(await r.json());
+  } catch (e) { toast(e.message, true); }
 }
 
 // ---------- playback / scrub ----------
@@ -203,9 +218,11 @@ async function track(fromHere) {
 // ---------- exports ----------
 
 function addOutput(p) {
-  const d = document.createElement('div');
+  const a = document.createElement('a');
-  d.textContent = p;
+  a.href = 'api/download/' + encodeURIComponent(p.split('/').pop());
-  $('#outlist').prepend(d);
+  a.textContent = p.split('/').pop();
+  a.title = p;
+  $('#outlist').prepend(a);
 }
 
 async function exportRoto(kind) {
@@ -231,6 +248,11 @@ async function exportTrim() {
 
 $('#load').onclick = loadClip;
 $('#path').addEventListener('keydown', e => { if (e.key === 'Enter') loadClip(); });
+$('#upload').onclick = () => $('#file').click();
+$('#file').addEventListener('change', e => {
+  if (e.target.files[0]) uploadClip(e.target.files[0]);
+  e.target.value = '';
+});
 $('#play').onclick = togglePlay;
 $('#prev').onclick = () => { stopPlay(); showFrame(cur - 1); };
 $('#next').onclick = () => { stopPlay(); showFrame(cur + 1); };

web/index.html

@@ -11,6 +11,8 @@
   <h1>ROTO<span>GOD</span></h1>
   <input id="path" placeholder="/absolute/path/to/clip.mp4" spellcheck="false">
   <button id="load">Load</button>
+  <input type="file" id="file" accept="video/*,.mp4,.mov,.mkv,.webm" hidden>
+  <button id="upload" title="upload a clip from this device">⬆</button>
   <span id="engine" class="badge">engine: …</span>
   <span id="toast"></span>
 </header>

web/style.css

@@ -57,7 +57,9 @@ progress { width: 100%; height: 6px; accent-color: var(--accent); }
 .obj.active { border-color: var(--accent); background: #14303f; }
 .obj .swatch { width: 10px; height: 10px; border-radius: 50%; }
 
-#outlist div { padding: 3px 0; border-bottom: 1px dotted var(--line); word-break: break-all; font-size: 11px; }
+#outlist a { display: block; color: var(--accent); text-decoration: none; padding: 3px 0;
+  border-bottom: 1px dotted var(--line); word-break: break-all; font-size: 11px; }
+#outlist a:hover { text-decoration: underline; }
 
 footer { border-top: 1px solid var(--line); background: var(--panel); padding: 6px 14px 10px; }
 #transport { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }