38 lines
1.3 KiB
TypeScript
38 lines
1.3 KiB
TypeScript
import { randomBytes } from "node:crypto";
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import { mkdir, readFile, rename, rm, writeFile } from "node:fs/promises";
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import path from "node:path";
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import { isValidStorageKey, type StorageDriver } from "./types";
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/** Yerel disk sürücüsü. Yazma atomiktir (geçici dosya + rename); yarım dosya servis edilmez. */
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export function createLocalDriver(baseDir: string): StorageDriver {
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const root = path.resolve(baseDir);
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function resolve(key: string): string {
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if (!isValidStorageKey(key)) throw new Error(`Geçersiz depolama anahtarı: ${key}`);
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const full = path.resolve(root, key);
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if (!full.startsWith(root + path.sep)) throw new Error("Depolama kökü dışına çıkılamaz.");
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return full;
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}
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return {
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async put(key, data) {
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const full = resolve(key);
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await mkdir(path.dirname(full), { recursive: true, mode: 0o750 });
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const tmp = `${full}.${randomBytes(6).toString("hex")}.tmp`;
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await writeFile(tmp, data, { mode: 0o640 });
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await rename(tmp, full);
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},
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async get(key) {
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try {
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return await readFile(resolve(key));
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} catch (error) {
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if ((error as NodeJS.ErrnoException).code === "ENOENT") return null;
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throw error;
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}
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},
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async delete(key) {
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await rm(resolve(key), { force: true });
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},
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};
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}
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