Initial commit

2026-05-26 22:46:00 +02:00
commit 7e2c2ff89c
256 changed files with 51523 additions and 0 deletions
@@ -0,0 +1,83 @@
+import { NextRequest } from "next/server";
+import fsp from "node:fs/promises";
+import { findVideosForCode, getVideoIndex, rescanVideoIndex } from "@/lib/video";
+import { getAppSetting } from "@/lib/db/appSettings";
+import { probeDuration } from "@/lib/video/duration";
+import { assertLocalRequest } from "@/lib/api/localOnly";
+
+export const runtime = "nodejs";
+export const dynamic = "force-dynamic";
+
+/**
+ * HLS playlist generator. Returns an m3u8 with N segment URLs covering
+ * the full video duration. Segments are produced on demand by the
+ * sibling /segment endpoint (each one is a fresh NVENC transcode of a
+ * fixed time window). Player (hls.js) requests segments as needed for
+ * playback and seeking.
+ */
+const SEGMENT_SECONDS = 6;
+
+export async function GET(req: NextRequest, ctx: { params: Promise<{ code: string }> }) {
+  const blocked = assertLocalRequest(req);
+  if (blocked) return blocked;
+
+  const { code } = await ctx.params;
+  const decoded = decodeURIComponent(code);
+  const url = new URL(req.url);
+  const partRaw = url.searchParams.get("part");
+  const part = partRaw == null ? 0 : Math.max(0, parseInt(partRaw, 10) || 0);
+
+  let files = findVideosForCode(decoded);
+  if (files.length === 0) {
+    const main = (getAppSetting("videoLibraryPath") || "").trim();
+    const extras = getAppSetting("videoExtraPaths") ?? [];
+    const expected = [main, ...extras].filter(Boolean);
+    const idx = getVideoIndex();
+    const haveAll = expected.length === idx.rootsScanned.length
+      && expected.every((r, i) => r === idx.rootsScanned[i]);
+    if (expected.length > 0 && !haveAll) {
+      await rescanVideoIndex();
+      files = findVideosForCode(decoded);
+    }
+  }
+  if (files.length === 0) return new Response("not found", { status: 404 });
+  const file = files[Math.min(part, files.length - 1)];
+
+  try {
+    await fsp.stat(file.abs);
+  } catch {
+    return new Response("not found", { status: 404 });
+  }
+
+  const duration = await probeDuration(file.abs, req.signal);
+  if (duration == null) {
+    return new Response("ffprobe failed", { status: 500 });
+  }
+
+  const segCount = Math.ceil(duration / SEGMENT_SECONDS);
+  const lines: string[] = [
+    "#EXTM3U",
+    "#EXT-X-VERSION:3",
+    `#EXT-X-TARGETDURATION:${SEGMENT_SECONDS}`,
+    "#EXT-X-MEDIA-SEQUENCE:0",
+    "#EXT-X-PLAYLIST-TYPE:VOD",
+  ];
+  for (let i = 0; i < segCount; i++) {
+    const remaining = duration - i * SEGMENT_SECONDS;
+    const segDur = Math.min(SEGMENT_SECONDS, remaining);
+    lines.push(`#EXTINF:${segDur.toFixed(3)},`);
+    // Relative URL — resolves against the playlist URL's directory.
+    // Playlist is at /api/video-hls/[code]/playlist, so its directory is
+    // /api/video-hls/[code]/ and `segment?...` resolves to the sibling.
+    lines.push(`segment?part=${part}&i=${i}`);
+  }
+  lines.push("#EXT-X-ENDLIST");
+
+  return new Response(lines.join("\n"), {
+    status: 200,
+    headers: {
+      "Content-Type": "application/vnd.apple.mpegurl",
+      "Cache-Control": "no-store",
+    },
+  });
+}