@opengis/fastify-table/dist/server/plugins/upload/startUpload.js

core-plugins

import path from "node:path";
import { randomUUID } from "node:crypto";
import { mkdir, writeFile } from "node:fs/promises";
import getUploadStatus from "./getUploadStatus.js";
import { prefix, fileDir, metaDir, uploadChunkDirectory, fetchTimeoutMs, } from "./index.js";
export default async function startUpload({ host, id, fileName, size, subdir, }) {
    if (subdir && (typeof subdir !== "string" || subdir.includes(".."))) {
        return {
            error: "invalid params: subdir",
            code: 400,
        };
    }
    if (!host) {
        const extension = path.extname(fileName).substring(1);
        const id1 = id || randomUUID();
        const key = id1.split("-").pop();
        const meta = {
            id: id1,
            key,
            fileName,
            size,
            extension,
            uploaded: 0,
            exists: false,
        };
        // check current upload state
        if (id) {
            const status = await getUploadStatus({ id });
            Object.assign(meta, status);
        }
        // resume file upload
        if (meta.uploaded > 0) {
            return meta;
        }
        // if not started - start new upload
        const relativeDirpath = path
            .join(uploadChunkDirectory, subdir || "")
            .replace(/\\/g, "/");
        await mkdir(path.join(fileDir, "tmp"), { recursive: true });
        // create metadata for resumable upload
        const metaData = {
            ...meta,
            subdir,
            metaPath: undefined,
            relativeDirpath,
        };
        await writeFile(path.join(metaDir, `${id1}.json`), JSON.stringify(metaData, null, 2));
        return { ...meta, metaPath: undefined };
    }
    const res = await fetch(`${host}/${prefix}/start`, {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ fileName, size, subdir, id }),
        signal: AbortSignal.timeout(fetchTimeoutMs),
    }).catch((err) => ({
        json: () => Promise.resolve({ error: err.toString(), code: 501 }),
    }));
    return res.json();
}