feat: implement GET for both SQL and local storage

backend/data.ts

@@ -167,3 +167,14 @@ export const put = (sector: DataSector, key: NID, data: AssFile | AssUser): Prom
 		reject(err);
 	}
 });
+
+export const get = (sector: DataSector, key: NID): Promise<AssFile | AssUser | false> => new Promise(async (resolve, reject) => {
+	try {
+		const data: AssFile | AssUser | undefined = (MySql.ready)
+			? (await MySql.get(sector === 'files' ? 'assfiles' : 'assusers', key) as AssFile | AssUser | undefined)
+			: (await fs.readJson(PATHS[sector]))[sector][key];
+		(!data) ? reject(false) : resolve(data);
+	} catch (err) {
+		reject(err);
+	}
+});

backend/routers/index.ts

@@ -92,11 +92,12 @@ router.get('/direct/:fakeId', async (req, res) => {
 	// Get the ID
 	const fakeId = req.params.fakeId;
 
-	if (!files.has(fakeId)) return res.status(404).send();
-	else {
+	// Get the file metadata
+	const _data = await data.get('files', fakeId);
 
-		// Get file metadata
-		const meta = files.get(fakeId)!;
+	if (!_data) return res.status(404).send();
+	else {
+		const meta = _data as AssFile;
 
 		// File data can come from either S3 or local filesystem
 		let output: Readable | NodeJS.ReadableStream;

backend/sql/mysql.ts

@@ -113,4 +113,20 @@ VALUES ('${key}', '${JSON.stringify(data)}');
 				.catch((err) => reject(err));
 		});
 	}
+
+	public static get(table: TableNamesType, key: NID): Promise<UploadToken | AssFile | AssUser | undefined> {
+		return new Promise(async (resolve, reject) => {
+			try {
+				// Run query
+				const [rowz, _fields] = await MySql._pool.query(`SELECT Data FROM ${table} WHERE NanoID = '${key}';`);
+
+				// Disgustingly interpret the query results
+				const rows_tableData = (rowz as unknown as { [key: string]: string }[])[0] as unknown as ({ Data: UploadToken | AssFile | AssUser | undefined });
+
+				resolve(rows_tableData?.Data ?? undefined);
+			} catch (err) {
+				reject(err);
+			}
+		});
+	}
 }