wehub-resource-sync
113 lines
3.1 KiB
TypeScript
113 lines
3.1 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server";
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import path from "path";
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import {
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BundledPresentationExportFormat,
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bundledExportPackageAvailable,
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runBundledPresentationExport,
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} from "@/lib/run-bundled-presentation-export";
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function isValidFormat(value: unknown): value is BundledPresentationExportFormat {
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return value === "pdf" || value === "pptx";
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}
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async function readExportRequestBody(req: NextRequest): Promise<{
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format?: unknown;
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id?: unknown;
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title?: unknown;
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}> {
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const rawBody = await req.text();
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if (!rawBody.trim()) {
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throw new Error("EMPTY_BODY");
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}
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const parsed = JSON.parse(rawBody) as unknown;
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if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) {
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throw new Error("INVALID_BODY");
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}
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return parsed as { format?: unknown; id?: unknown; title?: unknown };
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}
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function buildExportDownloadUrl(outPath: string): string {
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const appDataDirectory = process.env.APP_DATA_DIRECTORY?.trim();
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if (!appDataDirectory) {
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throw new Error("APP_DATA_DIRECTORY is required to download exported files.");
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}
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const exportsDirectory = path.join(appDataDirectory, "exports");
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const relativePath = path.relative(exportsDirectory, outPath);
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if (
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!relativePath ||
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relativePath.startsWith("..") ||
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path.isAbsolute(relativePath)
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) {
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throw new Error("Export finished outside the configured exports directory.");
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}
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return `/api/export-presentation/file?name=${encodeURIComponent(relativePath)}`;
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}
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export async function POST(req: NextRequest) {
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let body: Awaited<ReturnType<typeof readExportRequestBody>>;
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try {
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body = await readExportRequestBody(req);
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} catch (error) {
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if (
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error instanceof SyntaxError ||
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(error instanceof Error &&
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(error.message === "EMPTY_BODY" || error.message === "INVALID_BODY"))
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) {
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return NextResponse.json(
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{ error: "Invalid export request JSON body" },
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{ status: 400 }
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);
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}
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throw error;
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}
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const { format, id, title } = body;
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const cookieHeader = req.headers.get("cookie") ?? "";
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if (typeof id !== "string" || !id.trim()) {
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return NextResponse.json(
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{ error: "Missing Presentation ID" },
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{ status: 400 }
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);
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}
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if (!isValidFormat(format)) {
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return NextResponse.json(
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{ error: "Invalid export format" },
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{ status: 400 }
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);
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}
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try {
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if (!(await bundledExportPackageAvailable())) {
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throw new Error(
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"presentation-export runtime is not available. Run scripts/sync-presentation-export.cjs to install it."
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);
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}
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const { path: outPath } = await runBundledPresentationExport({
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format,
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presentationId: id.trim(),
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title: typeof title === "string" ? title : undefined,
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cookieHeader,
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});
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return NextResponse.json({
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success: true,
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path: buildExportDownloadUrl(outPath),
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});
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} catch (e) {
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const message = e instanceof Error ? e.message : String(e);
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console.error(`[export-presentation:${format}]`, message);
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return NextResponse.json(
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{ error: message, success: false },
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{ status: 500 }
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);
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}
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}
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