oxmc
ecc340e7b1
Dark mode: CSS custom properties + .dark class toggled via Redux/localStorage, with a theme toggle in the Header and Settings page. Foundation didn't exist yet despite prior assumption, so it was built from scratch. SQLite: new DB_ENGINE=mongo|sqlite env var selects the metadata backend at runtime (Mongo stays default, no behavior change unless opted in). File/thumbnail bytes continue to use the existing fs/S3 storage path. Implemented via a shared DB interface (dbTypes.ts) with parallel mongoDB/ and sqliteDB/ implementations, selected through dbFactory.ts, with JWT/encryption logic extracted into userCrypto.ts so both engines share it.
94 lines
2.3 KiB
TypeScript
94 lines
2.3 KiB
TypeScript
import { EventEmitter } from "stream";
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import { UserInterface } from "../../../models/user-model";
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import { Response } from "express";
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import ForbiddenError from "../../../utils/ForbiddenError";
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import NotFoundError from "../../../utils/NotFoundError";
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import crypto from "crypto";
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import { createGenericParams } from "./storageHelper";
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import { getStorageActions } from "../actions/helper-actions";
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import { getThumbnailDB } from "../../../db/dbFactory";
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const thumbnailDB = getThumbnailDB();
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const storageActions = getStorageActions();
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const proccessData = (
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res: Response,
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thumbnailID: string,
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user: UserInterface
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) => {
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const eventEmitter = new EventEmitter();
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const processFile = async () => {
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try {
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const thumbnail = await thumbnailDB.getThumbnailInfo(
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user._id.toString(),
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thumbnailID
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);
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if (!thumbnail) throw new NotFoundError("Thumbnail Not Found");
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const password = user.getEncryptionKey();
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if (!password) throw new ForbiddenError("Invalid Encryption Key");
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const IV = thumbnail.IV;
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const readStreamParams = createGenericParams({
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filePath: thumbnail.path,
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Key: thumbnail.s3ID,
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});
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const readStream = storageActions.createReadStream(readStreamParams);
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const CIPHER_KEY = crypto.createHash("sha256").update(password).digest();
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const decipher = crypto.createDecipheriv("aes256", CIPHER_KEY, IV);
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decipher.on("error", (e: Error) => {
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eventEmitter.emit("error", e);
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});
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readStream.on("error", (e: Error) => {
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eventEmitter.emit("error", e);
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});
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res.on("error", (e: Error) => {
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eventEmitter.emit("error", e);
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});
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readStream
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.pipe(decipher)
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.pipe(res)
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.on("finish", () => {
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eventEmitter.emit("finish");
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});
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} catch (e) {
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eventEmitter.emit("error", e);
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}
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};
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processFile();
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return eventEmitter;
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};
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const getThumbnailData = (
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res: Response,
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thumbnailID: string,
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user: UserInterface
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) => {
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return new Promise((resolve, reject) => {
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const eventEmitter = proccessData(res, thumbnailID, user);
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eventEmitter.on("finish", (data) => {
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resolve(data);
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});
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eventEmitter.on("error", (e) => {
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reject(e);
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});
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});
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};
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export default getThumbnailData;
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