66 lines
2.4 KiB
TypeScript
66 lines
2.4 KiB
TypeScript
import { NextResponse } from "next/server";
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import { isConvexEnabled } from "@/lib/convex/enabled";
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import { HttpError, requireAuthContext } from "@/lib/auth/authContext";
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export const dynamic = "force-dynamic";
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const base64UrlEncodeUtf8 = (input: string) => {
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return Buffer.from(input, "utf8")
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.toString("base64")
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.replace(/\+/g, "-")
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.replace(/\//g, "_")
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.replace(/=+$/g, "");
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};
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const getRequestOrigin = (request: Request) => {
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const xfProto = request.headers.get("x-forwarded-proto")?.split(",")[0]?.trim();
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const xfHost = request.headers.get("x-forwarded-host")?.split(",")[0]?.trim();
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const host = xfHost || request.headers.get("host") || new URL(request.url).host;
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const protocol = (xfProto || new URL(request.url).protocol.replace(/:$/, "")) + ":";
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return `${protocol}//${host}`;
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};
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const isLocalHostname = (hostname: string) =>
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hostname === "127.0.0.1" || hostname === "localhost" || hostname === "host.docker.internal";
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const maybeProxyForBrowser = (request: Request, rawUrl: string) => {
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const input = String(rawUrl || "").trim();
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if (!input) return input;
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if (input.startsWith("/api/onlyoffice/proxy")) return input;
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try {
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const u = new URL(input);
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if (!isLocalHostname(u.hostname)) return input;
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const origin = getRequestOrigin(request);
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const proxy = new URL("/api/onlyoffice/proxy", origin);
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proxy.searchParams.set("u", base64UrlEncodeUtf8(input));
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return proxy.toString();
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} catch {
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return input;
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}
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};
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export async function GET(request: Request) {
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if (isConvexEnabled()) {
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try {
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await requireAuthContext();
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} catch (err) {
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if (err instanceof HttpError) {
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return NextResponse.json({ error: "未登录" }, { status: err.status });
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}
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return NextResponse.json({ error: "未登录" }, { status: 401 });
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}
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const { searchParams } = new URL(request.url);
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const fileUrl = searchParams.get("fileUrl");
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if (!fileUrl) {
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return NextResponse.json({ error: "缺少 fileUrl" }, { status: 400 });
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}
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// 说明：Convex + MinIO 模式下，这个接口目前主要用于“外链文件”走 ONLYOFFICE 的场景。
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// 由于外链本身已经是可访问的 URL，这里只做最小透传。
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return NextResponse.json({ signedUrl: maybeProxyForBrowser(request, fileUrl) });
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}
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return NextResponse.json({ error: "当前仅支持 Convex 模式" }, { status: 501 });
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}
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