first commit

apps/server/Dockerfile

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+FROM node:20-alpine
+WORKDIR /app
+RUN corepack enable
+COPY package.json /app/apps/server/package.json
+COPY package.json /app/package.json
+COPY pnpm-workspace.yaml /app/pnpm-workspace.yaml
+RUN pnpm install --frozen-lockfile=false
+WORKDIR /app/apps/server
+EXPOSE 3001
+CMD ["pnpm", "dev"]

apps/server/package.json

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+{
+  "name": "q-buffer-server",
+  "private": true,
+  "scripts": {
+    "dev": "ts-node-dev --respawn --transpile-only src/index.ts",
+    "build": "tsc -p tsconfig.json",
+    "start": "node dist/index.js"
+  },
+  "dependencies": {
+    "axios": "^1.7.7",
+    "axios-cookiejar-support": "^5.0.2",
+    "bcryptjs": "^2.4.3",
+    "cookie-parser": "^1.4.6",
+    "cors": "^2.8.5",
+    "express": "^4.19.2",
+    "express-rate-limit": "^7.3.1",
+    "form-data": "^4.0.0",
+    "jsonwebtoken": "^9.0.2",
+    "multer": "^1.4.5-lts.1",
+    "parse-torrent": "^9.1.5",
+    "pino": "^9.3.2",
+    "socket.io": "^4.7.5",
+    "tough-cookie": "^4.1.4",
+    "webtorrent": "^2.4.5",
+    "zod": "^3.23.8"
+  },
+  "devDependencies": {
+    "@types/bcryptjs": "^2.4.6",
+    "@types/cookie-parser": "^1.4.7",
+    "@types/cors": "^2.8.17",
+    "@types/express": "^4.17.21",
+    "@types/jsonwebtoken": "^9.0.6",
+    "@types/multer": "^1.4.12",
+    "@types/node": "^20.14.9",
+    "ts-node-dev": "^2.0.0",
+    "typescript": "^5.5.3"
+  }
+}

apps/server/src/auth/auth.middleware.ts

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+import { Request, Response, NextFunction } from "express";
+import { verifyToken } from "./auth.service"
+
+export const requireAuth = (req: Request, res: Response, next: NextFunction) => {
+  const token = req.cookies?.["qbuffer_token"];
+  if (!token) {
+    return res.status(401).json({ error: "Unauthorized" });
+  }
+  try {
+    const payload = verifyToken(token);
+    req.user = payload;
+    return next();
+  } catch (error) {
+    return res.status(401).json({ error: "Unauthorized" });
+  }
+};
+
+declare module "express-serve-static-core" {
+  interface Request {
+    user?: { username: string };
+  }
+}

apps/server/src/auth/auth.routes.ts

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+import { Router } from "express";
+import rateLimit from "express-rate-limit";
+import { signToken, verifyCredentials, verifyToken } from "./auth.service"
+import { isDev } from "../config"
+
+const router = Router();
+
+const loginLimiter = rateLimit({
+  windowMs: 60_000,
+  max: 5,
+  standardHeaders: true,
+  legacyHeaders: false,
+});
+
+router.post("/login", loginLimiter, async (req, res) => {
+  const { username, password } = req.body ?? {};
+  if (!username || !password) {
+    return res.status(400).json({ error: "Missing credentials" });
+  }
+  const user = await verifyCredentials(username, password);
+  if (!user) {
+    return res.status(401).json({ error: "Invalid credentials" });
+  }
+  const token = signToken({ username: user.username });
+  res.cookie("qbuffer_token", token, {
+    httpOnly: true,
+    sameSite: "lax",
+    secure: !isDev,
+  });
+  return res.json({ username: user.username });
+});
+
+router.post("/logout", (_req, res) => {
+  res.clearCookie("qbuffer_token");
+  return res.json({ ok: true });
+});
+
+router.get("/me", (req, res) => {
+  const token = req.cookies?.["qbuffer_token"];
+  if (!token) {
+    return res.status(401).json({ error: "Unauthorized" });
+  }
+  try {
+    const payload = verifyToken(token);
+    return res.json({ ok: true, username: payload.username });
+  } catch (error) {
+    return res.status(401).json({ error: "Unauthorized" });
+  }
+});
+
+router.get("/socket-token", (req, res) => {
+  const token = req.cookies?.["qbuffer_token"];
+  if (!token) {
+    return res.status(401).json({ error: "Unauthorized" });
+  }
+  try {
+    verifyToken(token);
+    return res.json({ token });
+  } catch (error) {
+    return res.status(401).json({ error: "Unauthorized" });
+  }
+});
+
+export default router;

apps/server/src/auth/auth.service.ts

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+import bcrypt from "bcryptjs";
+import jwt from "jsonwebtoken";
+import { config } from "../config"
+import { readDb, writeDb } from "../storage/jsondb"
+import { nowIso } from "../utils/time"
+import { User } from "../types"
+
+const ensureSeedUser = async (): Promise<User | null> => {
+  if (!config.appUsername || !config.appPassword) {
+    return null;
+  }
+  const db = await readDb();
+  const existing = db.users.find((user) => user.username === config.appUsername);
+  if (existing) {
+    return existing;
+  }
+  const passwordHash = await bcrypt.hash(config.appPassword, 10);
+  const newUser: User = {
+    username: config.appUsername,
+    passwordHash,
+    createdAt: nowIso(),
+  };
+  db.users.push(newUser);
+  await writeDb(db);
+  return newUser;
+};
+
+export const initAuth = async () => {
+  await ensureSeedUser();
+};
+
+export const verifyCredentials = async (username: string, password: string) => {
+  const db = await readDb();
+  const user = db.users.find((u) => u.username === username);
+  if (!user) {
+    return null;
+  }
+  const match = await bcrypt.compare(password, user.passwordHash);
+  return match ? user : null;
+};
+
+export const signToken = (payload: { username: string }) => {
+  return jwt.sign(payload, config.jwtSecret, { expiresIn: "7d" });
+};
+
+export const verifyToken = (token: string) => {
+  return jwt.verify(token, config.jwtSecret) as { username: string };
+};

apps/server/src/config.ts

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+import path from "node:path";
+
+const envNumber = (value: string | undefined, fallback: number) => {
+  const parsed = Number(value);
+  return Number.isFinite(parsed) ? parsed : fallback;
+};
+
+export const config = {
+  port: envNumber(process.env.SERVER_PORT, 3001),
+  nodeEnv: process.env.NODE_ENV ?? "development",
+  qbitBaseUrl: process.env.QBIT_BASE_URL ?? "",
+  qbitUsername: process.env.QBIT_USERNAME ?? "",
+  qbitPassword: process.env.QBIT_PASSWORD ?? "",
+  appUsername: process.env.APP_USERNAME ?? "",
+  appPassword: process.env.APP_PASSWORD ?? "",
+  jwtSecret: process.env.JWT_SECRET ?? "",
+  pollIntervalMs: envNumber(process.env.POLL_INTERVAL_MS, 3000),
+  enforceIntervalMs: envNumber(process.env.ENFORCE_INTERVAL_MS, 2000),
+  defaultDelayMs: envNumber(process.env.DEFAULT_DELAY_MS, 3000),
+  maxLoopLimit: envNumber(process.env.MAX_LOOP_LIMIT, 20),
+  stalledRecoveryMs: envNumber(process.env.STALLED_RECOVERY_MS, 300_000),
+  timerPollMs: envNumber(process.env.TIMER_POLL_MS, 60_000),
+  webPort: envNumber(process.env.WEB_PORT, 5173),
+  webOrigin: process.env.WEB_ORIGIN ?? "",
+  dataDir: "/app/data",
+  dbPath: "/app/data/db.json",
+  logsPath: "/app/data/logs.json",
+  torrentArchiveDir: "/app/data/torrents",
+  webPublicDir: path.resolve("/app/apps/server/public"),
+};
+
+export const isDev = config.nodeEnv !== "production";

apps/server/src/enforcement/enforcement.types.ts

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+export interface EnforcementResult {
+  jobId: string;
+  bannedIps: string[];
+  allowIpConnected: boolean;
+}

apps/server/src/enforcement/enforcement.worker.ts

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+import axios from "axios";
+import { getQbitCapabilities, getQbitClient } from "../qbit/qbit.context";
+import { readDb, writeDb } from "../storage/jsondb";
+import { nowIso } from "../utils/time";
+import { emitJobLog, emitJobMetrics } from "../realtime/emitter";
+import { appendAuditLog } from "../utils/logger";
+
+const peerErrorThrottle = new Map<string, number>();
+
+export const startEnforcementWorker = (intervalMs: number) => {
+  setInterval(async () => {
+    let db;
+    try {
+      const qbit = getQbitClient();
+      const caps = getQbitCapabilities();
+      db = await readDb();
+
+      for (const job of db.loopJobs) {
+        try {
+          if (job.status !== "RUNNING") {
+            continue;
+          }
+          if (!caps) {
+            continue;
+          }
+          if (!caps?.hasPeersEndpoint) {
+            emitJobLog({
+              jobId: job.id,
+              level: "WARN",
+              message: "Peer listing unsupported; enforcement disabled",
+              createdAt: nowIso(),
+            });
+            continue;
+          }
+          let peersResponse;
+          try {
+            peersResponse = await qbit.getTorrentPeers(job.torrentHash);
+          } catch (error) {
+            const status = axios.isAxiosError(error) ? error.response?.status : undefined;
+            if (status === 404) {
+              const lastWarn = peerErrorThrottle.get(job.id) ?? 0;
+              if (Date.now() - lastWarn > 60_000) {
+                emitJobLog({
+                  jobId: job.id,
+                  level: "WARN",
+                  message: "Peer listesi desteklenmiyor; enforcement devre dışı.",
+                  createdAt: nowIso(),
+                });
+                peerErrorThrottle.set(job.id, Date.now());
+              }
+              continue;
+            }
+            throw error;
+          }
+          const peers = Object.values(peersResponse.peers || {});
+          let allowIpConnected = false;
+          const banned: string[] = [];
+
+          for (const peer of peers) {
+            if (peer.ip === job.allowIp) {
+              allowIpConnected = true;
+              continue;
+            }
+            if (caps?.hasBanEndpoint) {
+              const peerKey = `${peer.ip}:${peer.port}`;
+              banned.push(peerKey);
+            }
+          }
+
+          if (banned.length > 0 && caps?.hasBanEndpoint) {
+            await qbit.banPeers(banned);
+            job.bans.bannedIps.push(...banned.map((peer) => peer.split(":")[0]));
+            job.bans.lastBanAt = nowIso();
+            emitJobLog({
+              jobId: job.id,
+              level: "WARN",
+              message: `Banned ${banned.length} peers`,
+              createdAt: nowIso(),
+            });
+            await appendAuditLog({
+              level: "WARN",
+              event: "PEER_BANNED",
+              message: `Job ${job.id}: banned ${banned.length} peers`,
+            });
+          }
+
+          if (!caps?.hasBanEndpoint) {
+            emitJobLog({
+              jobId: job.id,
+              level: "WARN",
+              message: "Peer ban unsupported; warn-only enforcement",
+              createdAt: nowIso(),
+            });
+          }
+
+          if (!allowIpConnected) {
+            emitJobLog({
+              jobId: job.id,
+              level: "WARN",
+              message: "Allowed IP not connected",
+              createdAt: nowIso(),
+            });
+          }
+
+          job.updatedAt = nowIso();
+          emitJobMetrics(job);
+        } catch (error) {
+          emitJobLog({
+            jobId: job.id,
+            level: "ERROR",
+            message: "Enforcement error; continuing.",
+            createdAt: nowIso(),
+          });
+        }
+      }
+
+      await writeDb(db);
+    } catch (error) {
+      // Keep worker alive on errors.
+    }
+  }, intervalMs);
+};

apps/server/src/index.ts

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+import express from "express";
+import http from "node:http";
+import path from "node:path";
+import cookieParser from "cookie-parser";
+import cors from "cors";
+import { config, isDev } from "./config"
+import { ensureDataPaths } from "./storage/paths"
+import { initAuth } from "./auth/auth.service"
+import authRoutes from "./auth/auth.routes"
+import { requireAuth } from "./auth/auth.middleware"
+import qbitRoutes from "./qbit/qbit.routes"
+import torrentRoutes from "./torrent/torrent.routes"
+import loopRoutes from "./loop/loop.routes"
+import profilesRoutes from "./loop/profiles.routes"
+import statusRoutes from "./status/status.routes"
+import timerRoutes from "./timer/timer.routes"
+import { QbitClient } from "./qbit/qbit.client"
+import { detectCapabilities } from "./qbit/qbit.capabilities"
+import { setQbitClient, setQbitCapabilities } from "./qbit/qbit.context"
+import { setQbitStatus } from "./status/status.service"
+import { createSocketServer } from "./realtime/socket"
+import { initEmitter, emitQbitHealth } from "./realtime/emitter"
+import { startLoopScheduler } from "./loop/loop.scheduler"
+import { startEnforcementWorker } from "./enforcement/enforcement.worker"
+import { startTimerWorker } from "./timer/timer.worker"
+import { logger } from "./utils/logger"
+
+process.on("unhandledRejection", (reason) => {
+  logger.error({ reason }, "Unhandled promise rejection");
+});
+
+process.on("uncaughtException", (error) => {
+  logger.error({ error }, "Uncaught exception");
+});
+
+let serverStarted = false;
+
+const bootstrap = async () => {
+  await ensureDataPaths();
+  await initAuth();
+
+  const app = express();
+  app.use(cookieParser());
+  app.use(express.json());
+
+  if (isDev) {
+    const fallbackOrigin = `http://localhost:${config.webPort}`;
+    const origins = [config.webOrigin || fallbackOrigin, fallbackOrigin];
+    app.use(
+      cors({
+        origin: origins,
+        credentials: true,
+      })
+    );
+  }
+
+  app.use("/api/auth", authRoutes);
+  app.use("/api/qbit", requireAuth, qbitRoutes);
+  app.use("/api/torrent", requireAuth, torrentRoutes);
+  app.use("/api/loop", requireAuth, loopRoutes);
+  app.use("/api/profiles", requireAuth, profilesRoutes);
+  app.use("/api/status", requireAuth, statusRoutes);
+  app.use("/api/timer", requireAuth, timerRoutes);
+
+  if (!isDev) {
+    app.use(express.static(config.webPublicDir));
+    app.get("*", (req, res, next) => {
+      if (req.path.startsWith("/api")) {
+        return next();
+      }
+      return res.sendFile(path.join(config.webPublicDir, "index.html"));
+    });
+  }
+
+  const server = http.createServer(app);
+  const io = createSocketServer(server);
+  initEmitter(io);
+
+  const qbit = new QbitClient();
+  setQbitClient(qbit);
+
+  try {
+    const caps = await detectCapabilities(qbit);
+    setQbitCapabilities(caps);
+    setQbitStatus({ ok: true, version: caps.version, capabilities: caps });
+    emitQbitHealth({ ok: true, version: caps.version, capabilities: caps });
+  } catch (error) {
+    logger.error({ error }, "Failed to connect to qBittorrent");
+    setQbitStatus({ ok: false, lastError: (error as Error).message });
+    emitQbitHealth({ ok: false, lastError: (error as Error).message });
+  }
+
+  startLoopScheduler(qbit, config.pollIntervalMs);
+  startEnforcementWorker(config.enforceIntervalMs);
+  startTimerWorker(qbit, config.timerPollMs);
+
+  server.listen(config.port, () => {
+    serverStarted = true;
+    logger.info(`q-buffer server listening on ${config.port}`);
+  });
+};
+
+const startWithRetry = () => {
+  bootstrap().catch((error) => {
+    logger.error({ error }, "Failed to start server");
+    if (!serverStarted) {
+      setTimeout(startWithRetry, 5000);
+    }
+  });
+};
+
+startWithRetry();

apps/server/src/loop/loop.engine.ts

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+import { randomUUID } from "node:crypto";
+import { QbitClient } from "../qbit/qbit.client";
+import { readDb, writeDb } from "../storage/jsondb";
+import { LoopJob } from "../types";
+import { nowIso } from "../utils/time";
+import { appendAuditLog, logger } from "../utils/logger";
+import { emitJobLog, emitJobMetrics } from "../realtime/emitter";
+import { config } from "../config";
+
+const logJob = async (jobId: string, level: "INFO" | "WARN" | "ERROR", message: string, event?: string) => {
+  const createdAt = nowIso();
+  emitJobLog({ jobId, level, message, createdAt });
+  if (event) {
+    await appendAuditLog({ level, event: event as any, message });
+  }
+};
+
+export const createLoopJob = async (
+  input: {
+    torrentHash: string;
+    name: string;
+    sizeBytes: number;
+    magnet?: string;
+    torrentFilePath?: string;
+    allowIp: string;
+    targetLoops: number;
+    delayMs: number;
+  }
+): Promise<LoopJob> => {
+  const now = nowIso();
+  const job: LoopJob = {
+    id: randomUUID(),
+    torrentHash: input.torrentHash,
+    name: input.name,
+    sizeBytes: input.sizeBytes,
+    magnet: input.magnet,
+    torrentFilePath: input.torrentFilePath,
+    allowIp: input.allowIp,
+    targetLoops: input.targetLoops,
+    doneLoops: 0,
+    delayMs: input.delayMs,
+    deleteDataBetweenLoops: true,
+    enforcementMode: "aggressive-soft",
+    status: "RUNNING",
+    currentRun: {
+      startedAt: now,
+      lastProgress: 0,
+      lastProgressAt: now,
+      downloadedThisRunBytes: 0,
+      avgSpeed: 0,
+    },
+    totals: {
+      totalDownloadedBytes: 0,
+      totalTimeMs: 0,
+    },
+    bans: {
+      bannedIps: [],
+    },
+    createdAt: now,
+    updatedAt: now,
+  };
+  const db = await readDb();
+  db.loopJobs.push(job);
+  await writeDb(db);
+  await logJob(job.id, "INFO", `Loop job started for ${job.name}`, "JOB_STARTED");
+  return job;
+};
+
+export const stopLoopJob = async (jobId: string) => {
+  const db = await readDb();
+  const job = db.loopJobs.find((j) => j.id === jobId);
+  if (!job) {
+    return null;
+  }
+  job.status = "STOPPED";
+  job.nextRunAt = undefined;
+  job.currentRun = undefined;
+  job.updatedAt = nowIso();
+  await writeDb(db);
+  await logJob(job.id, "WARN", "Loop job stopped by user");
+  return job;
+};
+
+export const updateJob = async (job: LoopJob) => {
+  const db = await readDb();
+  const index = db.loopJobs.findIndex((j) => j.id === job.id);
+  if (index === -1) {
+    return null;
+  }
+  db.loopJobs[index] = job;
+  await writeDb(db);
+  emitJobMetrics(job);
+  return job;
+};
+
+export const tickLoopJobs = async (
+  qbit: QbitClient,
+  torrents: { hash: string; progress: number; state: string; dlspeed: number }[]
+) => {
+  const db = await readDb();
+  let changed = false;
+
+  for (const job of db.loopJobs) {
+    if (job.status === "RUNNING") {
+      const torrent = torrents.find((t) => t.hash === job.torrentHash);
+      if (!torrent) {
+        try {
+          if (job.torrentFilePath) {
+            await qbit.addTorrentByFile(job.torrentFilePath);
+          } else if (job.magnet) {
+            await qbit.addTorrentByMagnet(job.magnet);
+          }
+          await logJob(job.id, "WARN", "Torrent missing, re-added", "JOB_RESTARTED");
+        } catch (error) {
+          job.status = "ERROR";
+          job.lastError = "Failed to re-add torrent";
+          await logJob(job.id, "ERROR", job.lastError);
+        }
+        job.updatedAt = nowIso();
+        changed = true;
+        continue;
+      }
+
+      job.currentRun = job.currentRun ?? {
+        startedAt: nowIso(),
+        lastProgress: 0,
+        lastProgressAt: nowIso(),
+        downloadedThisRunBytes: 0,
+        avgSpeed: 0,
+      };
+      if (torrent.progress > job.currentRun.lastProgress) {
+        job.currentRun.lastProgress = torrent.progress;
+        job.currentRun.lastProgressAt = nowIso();
+        job.currentRun.stalledSince = undefined;
+      }
+      job.currentRun.avgSpeed = torrent.dlspeed;
+      job.updatedAt = nowIso();
+
+      const stalledState = /stalled|meta/i.test(torrent.state);
+      if (stalledState) {
+        if (!job.currentRun.stalledSince) {
+          job.currentRun.stalledSince = nowIso();
+        }
+        const lastProgressAt = job.currentRun.lastProgressAt
+          ? new Date(job.currentRun.lastProgressAt).getTime()
+          : 0;
+        if (Date.now() - lastProgressAt > config.stalledRecoveryMs) {
+          await logJob(
+            job.id,
+            "WARN",
+            "Stalled recovery: torrent will be removed and re-added"
+          );
+          try {
+            await qbit.deleteTorrent(job.torrentHash, true);
+          } catch (error) {
+            logger.error({ error }, "Failed to delete stalled torrent");
+          }
+          job.status = "WAITING_DELAY";
+          job.nextRunAt = new Date(Date.now() + job.delayMs).toISOString();
+          job.updatedAt = nowIso();
+          changed = true;
+          continue;
+        }
+      }
+
+      if (torrent.progress >= 1 && /UP|uploading|stalledUP|pausedUP|queuedUP/i.test(torrent.state)) {
+        job.doneLoops += 1;
+        job.totals.totalDownloadedBytes += job.sizeBytes;
+        await logJob(job.id, "INFO", `Loop ${job.doneLoops} completed`, "JOB_COMPLETED_LOOP");
+        try {
+          await qbit.deleteTorrent(job.torrentHash, true);
+        } catch (error) {
+          logger.error({ error }, "Failed to delete torrent");
+        }
+        if (job.doneLoops >= job.targetLoops) {
+          job.status = "COMPLETED";
+          await logJob(job.id, "INFO", "All loops completed", "JOB_COMPLETED_ALL");
+        } else {
+          job.status = "WAITING_DELAY";
+          job.nextRunAt = new Date(Date.now() + job.delayMs).toISOString();
+        }
+      }
+      changed = true;
+    }
+
+    if (job.status === "WAITING_DELAY") {
+      const nextRunAt = job.nextRunAt ? new Date(job.nextRunAt).getTime() : 0;
+      if (Date.now() >= nextRunAt) {
+        try {
+          if (job.torrentFilePath) {
+            await qbit.addTorrentByFile(job.torrentFilePath);
+          } else if (job.magnet) {
+            await qbit.addTorrentByMagnet(job.magnet);
+          }
+          job.status = "RUNNING";
+          job.currentRun = {
+            startedAt: nowIso(),
+            lastProgress: 0,
+            lastProgressAt: nowIso(),
+            downloadedThisRunBytes: 0,
+            avgSpeed: 0,
+          };
+          await logJob(job.id, "INFO", "Loop restarted", "JOB_RESTARTED");
+        } catch (error) {
+          job.status = "ERROR";
+          job.lastError = "Failed to re-add torrent after delay";
+          await logJob(job.id, "ERROR", job.lastError);
+        }
+        job.updatedAt = nowIso();
+        changed = true;
+      }
+    }
+  }
+
+  if (changed) {
+    await writeDb(db);
+    db.loopJobs.forEach((job) => emitJobMetrics(job));
+  }
+};

apps/server/src/loop/loop.routes.ts

@@ -0,0 +1,151 @@
+import { Router } from "express";
+import fs from "node:fs/promises";
+import path from "node:path";
+import { getQbitCapabilities, getQbitClient } from "../qbit/qbit.context";
+import { readDb } from "../storage/jsondb";
+import { createLoopJob, stopLoopJob } from "./loop.engine";
+import { dryRunSchema, loopStartSchema } from "../utils/validators";
+import { getArchiveStatus } from "../torrent/torrent.archive";
+import { config } from "../config";
+import { setArchiveStatus } from "../torrent/torrent.archive";
+import { nowIso } from "../utils/time";
+
+const router = Router();
+
+router.post("/start", async (req, res) => {
+  const parsed = loopStartSchema.safeParse(req.body);
+  if (!parsed.success) {
+    return res.status(400).json({ error: parsed.error.flatten() });
+  }
+  const { hash, allowIp, targetLoops, delayMs } = parsed.data;
+  const db = await readDb();
+  if (targetLoops > db.settings.maxLoopLimit) {
+    return res.status(400).json({ error: "Target loops exceed max limit" });
+  }
+  const qbit = getQbitClient();
+  const torrents = await qbit.getTorrentsInfo();
+  const torrent = torrents.find((t) => t.hash === hash);
+  if (!torrent) {
+    return res.status(404).json({ error: "Torrent not found" });
+  }
+  let archive = await getArchiveStatus(hash);
+  if (!archive?.torrentFilePath) {
+    try {
+      const buffer = await qbit.exportTorrent(hash);
+      const targetPath = path.join(config.torrentArchiveDir, `${hash}.torrent`);
+      await fs.writeFile(targetPath, buffer);
+      archive = await setArchiveStatus({
+        hash,
+        status: "READY",
+        torrentFilePath: targetPath,
+        source: "exported",
+        updatedAt: nowIso(),
+      });
+    } catch (error) {
+      return res.status(400).json({
+        error: "Arşiv yok ve export başarısız. Lütfen Advanced bölümünden .torrent yükleyin.",
+      });
+    }
+  }
+  try {
+    await fs.access(archive.torrentFilePath);
+  } catch (error) {
+    return res.status(400).json({
+      error: "Arşiv dosyası bulunamadı. Lütfen tekrar yükleyin.",
+    });
+  }
+  const job = await createLoopJob({
+    torrentHash: hash,
+    name: torrent.name,
+    sizeBytes: torrent.size,
+    magnet: undefined,
+    torrentFilePath: archive?.torrentFilePath,
+    allowIp,
+    targetLoops,
+    delayMs,
+  });
+  res.json(job);
+});
+
+router.post("/stop/:jobId", async (req, res) => {
+  const { jobId } = req.params;
+  const job = await stopLoopJob(jobId);
+  if (!job) {
+    return res.status(404).json({ error: "Job not found" });
+  }
+  try {
+    const qbit = getQbitClient();
+    await qbit.deleteTorrent(job.torrentHash, true);
+  } catch (error) {
+    // Best-effort delete
+  }
+  res.json(job);
+});
+
+router.post("/stop-by-hash", async (req, res) => {
+  const { hash } = req.body ?? {};
+  if (!hash) {
+    return res.status(400).json({ error: "Missing hash" });
+  }
+  const db = await readDb();
+  const job = db.loopJobs.find((j) => j.torrentHash === hash);
+  if (!job) {
+    return res.status(404).json({ error: "Job not found" });
+  }
+  const stopped = await stopLoopJob(job.id);
+  try {
+    const qbit = getQbitClient();
+    await qbit.deleteTorrent(hash, true);
+  } catch (error) {
+    // Best-effort delete
+  }
+  res.json(stopped);
+});
+
+router.post("/dry-run", async (req, res) => {
+  const parsed = dryRunSchema.safeParse(req.body);
+  if (!parsed.success) {
+    return res.status(400).json({ error: parsed.error.flatten() });
+  }
+  const { hash } = parsed.data;
+  const qbit = getQbitClient();
+  const caps = getQbitCapabilities();
+  const torrents = await qbit.getTorrentsInfo();
+  const torrent = torrents.find((t) => t.hash === hash);
+  if (!torrent) {
+    return res.status(404).json({ error: "Torrent not found" });
+  }
+  const archive = await getArchiveStatus(hash);
+  res.json({
+    ok: true,
+    qbitVersion: caps?.version,
+    capabilities: caps,
+    hasMagnet: Boolean(torrent.magnet_uri),
+    archiveStatus: archive?.status ?? "MISSING",
+    warnings: [
+      caps?.hasPeersEndpoint ? null : "Peer listing unsupported",
+      caps?.hasBanEndpoint ? null : "Peer ban unsupported; warn-only enforcement",
+      torrent.magnet_uri ? null : "Magnet unavailable; upload .torrent recommended",
+    ].filter(Boolean),
+  });
+});
+
+router.get("/jobs", async (_req, res) => {
+  const db = await readDb();
+  res.json(db.loopJobs);
+});
+
+router.get("/job/:jobId", async (req, res) => {
+  const db = await readDb();
+  const job = db.loopJobs.find((j) => j.id === req.params.jobId);
+  if (!job) {
+    return res.status(404).json({ error: "Job not found" });
+  }
+  res.json(job);
+});
+
+router.get("/logs/:jobId", async (req, res) => {
+  res.json({ jobId: req.params.jobId, logs: [] });
+});
+
+export default router;

apps/server/src/loop/loop.scheduler.ts

@@ -0,0 +1,26 @@
+import { QbitClient } from "../qbit/qbit.client"
+import { tickLoopJobs } from "./loop.engine"
+import { getStatusSnapshot, refreshJobsStatus, setTorrentsStatus } from "../status/status.service"
+import { emitStatusUpdate } from "../realtime/emitter"
+import { logger } from "../utils/logger"
+
+export const startLoopScheduler = (qbit: QbitClient, intervalMs: number) => {
+  setInterval(async () => {
+    try {
+      const torrents = await qbit.getTorrentsInfo();
+      const transfer = await qbit.getTransferInfo();
+      setTorrentsStatus(torrents, transfer);
+      await tickLoopJobs(qbit, torrents);
+      const jobs = await refreshJobsStatus();
+      const current = await getStatusSnapshot();
+      emitStatusUpdate({
+        qbit: { ...current.qbit, ok: true },
+        torrents,
+        transfer,
+        jobs,
+      });
+    } catch (error) {
+      logger.error({ error }, "Loop scheduler tick failed");
+    }
+  }, intervalMs);
+};

apps/server/src/loop/loop.types.ts

@@ -0,0 +1,12 @@
+import { LoopJob } from "../types"
+
+export interface LoopStartInput {
+  hash: string;
+  allowIp: string;
+  targetLoops: number;
+  delayMs: number;
+}
+
+export interface LoopEngineContext {
+  jobs: LoopJob[];
+}

apps/server/src/loop/profiles.routes.ts

@@ -0,0 +1,74 @@
+import { Router } from "express";
+import { randomUUID } from "node:crypto";
+import { readDb, writeDb } from "../storage/jsondb"
+import { profileSchema } from "../utils/validators"
+import { nowIso } from "../utils/time"
+
+const router = Router();
+
+router.get("/", async (_req, res) => {
+  const db = await readDb();
+  res.json(db.profiles);
+});
+
+router.post("/", async (req, res) => {
+  const parsed = profileSchema.safeParse(req.body);
+  if (!parsed.success) {
+    return res.status(400).json({ error: parsed.error.flatten() });
+  }
+  const db = await readDb();
+  const profile = {
+    id: randomUUID(),
+    createdAt: nowIso(),
+    ...parsed.data,
+  };
+  db.profiles.push(profile);
+  await writeDb(db);
+  res.json(profile);
+});
+
+router.put("/:profileId", async (req, res) => {
+  const parsed = profileSchema.safeParse(req.body);
+  if (!parsed.success) {
+    return res.status(400).json({ error: parsed.error.flatten() });
+  }
+  const db = await readDb();
+  const index = db.profiles.findIndex((p) => p.id === req.params.profileId);
+  if (index === -1) {
+    return res.status(404).json({ error: "Profile not found" });
+  }
+  db.profiles[index] = {
+    ...db.profiles[index],
+    ...parsed.data,
+  };
+  await writeDb(db);
+  res.json(db.profiles[index]);
+});
+
+router.delete("/:profileId", async (req, res) => {
+  const db = await readDb();
+  const next = db.profiles.filter((p) => p.id !== req.params.profileId);
+  if (next.length === db.profiles.length) {
+    return res.status(404).json({ error: "Profile not found" });
+  }
+  db.profiles = next;
+  await writeDb(db);
+  res.json({ ok: true });
+});
+
+router.post("/apply", async (req, res) => {
+  const { profileId, hash } = req.body ?? {};
+  const db = await readDb();
+  const profile = db.profiles.find((p) => p.id === profileId);
+  if (!profile) {
+    return res.status(404).json({ error: "Profile not found" });
+  }
+  res.json({
+    hash,
+    allowIp: profile.allowIp,
+    delayMs: profile.delayMs,
+    targetLoops: profile.targetLoops,
+  });
+});
+
+export default router;

apps/server/src/qbit/qbit.capabilities.ts

@@ -0,0 +1,30 @@
+import { QbitClient } from "./qbit.client"
+import { QbitCapabilities } from "./qbit.types"
+
+export const detectCapabilities = async (
+  client: QbitClient
+): Promise<QbitCapabilities> => {
+  const version = await client.getVersion();
+  let hasPeersEndpoint = true;
+  let hasBanEndpoint = true;
+
+  try {
+    await client.getTorrentPeers("__probe__");
+  } catch (error) {
+    const status = (error as any)?.response?.status;
+    if (status !== 400 && status !== 404) {
+      hasPeersEndpoint = false;
+    }
+  }
+
+  try {
+    await client.banPeers(["127.0.0.1:1"]);
+  } catch (error) {
+    const status = (error as any)?.response?.status;
+    if (status !== 400 && status !== 404) {
+      hasBanEndpoint = false;
+    }
+  }
+
+  return { version, hasPeersEndpoint, hasBanEndpoint };
+};

apps/server/src/qbit/qbit.client.ts

@@ -0,0 +1,177 @@
+import axios, { AxiosInstance } from "axios";
+import { CookieJar } from "tough-cookie";
+import { wrapper } from "axios-cookiejar-support";
+import FormData from "form-data";
+import fs from "node:fs";
+import { config } from "../config"
+import { logger } from "../utils/logger"
+import {
+  QbitPeerList,
+  QbitTorrentInfo,
+  QbitTorrentProperties,
+  QbitTransferInfo,
+} from "./qbit.types"
+
+export class QbitClient {
+  private client: AxiosInstance;
+  private jar: CookieJar;
+  private loggedIn = false;
+
+  constructor() {
+    this.jar = new CookieJar();
+    this.client = wrapper(
+      axios.create({
+        baseURL: config.qbitBaseUrl,
+        jar: this.jar,
+        withCredentials: true,
+      })
+    );
+  }
+
+  async login(): Promise<void> {
+    if (!config.qbitBaseUrl) {
+      throw new Error("QBIT_BASE_URL missing");
+    }
+    const form = new URLSearchParams();
+    form.append("username", config.qbitUsername);
+    form.append("password", config.qbitPassword);
+    await this.client.post("/api/v2/auth/login", form, {
+      headers: { "Content-Type": "application/x-www-form-urlencoded" },
+    });
+    this.loggedIn = true;
+  }
+
+  private async request<T>(fn: () => Promise<T>): Promise<T> {
+    try {
+      if (!this.loggedIn) {
+        await this.login();
+      }
+      return await fn();
+    } catch (error) {
+      if (
+        axios.isAxiosError(error) &&
+        (error.response?.status === 401 || error.response?.status === 403)
+      ) {
+        logger.warn("qBittorrent session expired, re-login");
+        this.loggedIn = false;
+        await this.login();
+        return await fn();
+      }
+      throw error;
+    }
+  }
+
+  async getVersion(): Promise<string> {
+    const response = await this.request(() =>
+      this.client.get<string>("/api/v2/app/version")
+    );
+    return response.data;
+  }
+
+  async getTorrentsInfo(): Promise<QbitTorrentInfo[]> {
+    const response = await this.request(() =>
+      this.client.get<QbitTorrentInfo[]>("/api/v2/torrents/info", {
+        params: { filter: "all" },
+      })
+    );
+    return response.data;
+  }
+
+  async getTransferInfo(): Promise<QbitTransferInfo> {
+    const response = await this.request(() =>
+      this.client.get<QbitTransferInfo>("/api/v2/transfer/info")
+    );
+    return response.data;
+  }
+
+  async getTorrentProperties(hash: string): Promise<QbitTorrentProperties> {
+    const response = await this.request(() =>
+      this.client.get<QbitTorrentProperties>("/api/v2/torrents/properties", {
+        params: { hash },
+      })
+    );
+    return response.data;
+  }
+
+  async getTorrentPeers(hash: string): Promise<QbitPeerList> {
+    const response = await this.request(() =>
+      this.client.get<QbitPeerList>("/api/v2/sync/torrentPeers", {
+        params: { hash },
+      })
+    );
+    return response.data;
+  }
+
+  async exportTorrent(hash: string): Promise<Buffer> {
+    const response = await this.request(() =>
+      this.client.get<ArrayBuffer>("/api/v2/torrents/export", {
+        params: { hashes: hash },
+        responseType: "arraybuffer",
+      })
+    );
+    return Buffer.from(response.data);
+  }
+
+  async addTorrentByMagnet(magnet: string, options: Record<string, string> = {}) {
+    const form = new URLSearchParams();
+    form.append("urls", magnet);
+    Object.entries(options).forEach(([key, value]) => form.append(key, value));
+    await this.request(() =>
+      this.client.post("/api/v2/torrents/add", form, {
+        headers: { "Content-Type": "application/x-www-form-urlencoded" },
+      })
+    );
+  }
+
+  async addTorrentByFile(filePath: string, options: Record<string, string> = {}) {
+    const form = new FormData();
+    form.append("torrents", fs.createReadStream(filePath));
+    Object.entries(options).forEach(([key, value]) => form.append(key, value));
+    await this.request(() =>
+      this.client.post("/api/v2/torrents/add", form, {
+        headers: form.getHeaders(),
+      })
+    );
+  }
+
+  async deleteTorrent(hash: string, deleteFiles = true) {
+    const form = new URLSearchParams();
+    form.append("hashes", hash);
+    form.append("deleteFiles", deleteFiles ? "true" : "false");
+    await this.request(() =>
+      this.client.post("/api/v2/torrents/delete", form, {
+        headers: { "Content-Type": "application/x-www-form-urlencoded" },
+      })
+    );
+  }
+
+  async pauseTorrent(hash: string) {
+    const form = new URLSearchParams();
+    form.append("hashes", hash);
+    await this.request(() =>
+      this.client.post("/api/v2/torrents/pause", form, {
+        headers: { "Content-Type": "application/x-www-form-urlencoded" },
+      })
+    );
+  }
+
+  async resumeTorrent(hash: string) {
+    const form = new URLSearchParams();
+    form.append("hashes", hash);
+    await this.request(() =>
+      this.client.post("/api/v2/torrents/resume", form, {
+        headers: { "Content-Type": "application/x-www-form-urlencoded" },
+      })
+    );
+  }
+
+  async banPeers(peers: string[]) {
+    const form = new URLSearchParams();
+    form.append("peers", peers.join("|"));
+    await this.request(() =>
+      this.client.post("/api/v2/transfer/banPeers", form, {
+        headers: { "Content-Type": "application/x-www-form-urlencoded" },
+      })
+    );
+  }
+}

apps/server/src/qbit/qbit.context.ts

@@ -0,0 +1,22 @@
+import { QbitClient } from "./qbit.client"
+import { QbitCapabilities } from "./qbit.types"
+
+let client: QbitClient | null = null;
+let capabilities: QbitCapabilities | null = null;
+
+export const setQbitClient = (instance: QbitClient) => {
+  client = instance;
+};
+
+export const getQbitClient = () => {
+  if (!client) {
+    throw new Error("Qbit client not initialized");
+  }
+  return client;
+};
+
+export const setQbitCapabilities = (caps: QbitCapabilities) => {
+  capabilities = caps;
+};
+
+export const getQbitCapabilities = () => capabilities;

apps/server/src/qbit/qbit.routes.ts

@@ -0,0 +1,30 @@
+import { Router } from "express";
+import { getQbitClient } from "./qbit.context"
+
+const router = Router();
+
+router.get("/torrents", async (_req, res) => {
+  const qbit = getQbitClient();
+  const torrents = await qbit.getTorrentsInfo();
+  res.json(torrents);
+});
+
+router.get("/transfer", async (_req, res) => {
+  const qbit = getQbitClient();
+  const transfer = await qbit.getTransferInfo();
+  res.json(transfer);
+});
+
+router.get("/torrent/:hash", async (req, res) => {
+  const qbit = getQbitClient();
+  const props = await qbit.getTorrentProperties(req.params.hash);
+  res.json(props);
+});
+
+router.delete("/torrent/:hash", async (req, res) => {
+  const qbit = getQbitClient();
+  await qbit.deleteTorrent(req.params.hash, true);
+  res.json({ ok: true });
+});
+
+export default router;

apps/server/src/qbit/qbit.types.ts

@@ -0,0 +1,51 @@
+export interface QbitTorrentInfo {
+  hash: string;
+  name: string;
+  size: number;
+  progress: number;
+  dlspeed: number;
+  state: string;
+  magnet_uri?: string;
+  completed?: number;
+  tags?: string;
+  category?: string;
+  tracker?: string;
+  seeding_time?: number;
+  uploaded?: number;
+}
+
+export interface QbitTransferInfo {
+  dl_info_speed: number;
+  dl_info_data: number;
+  up_info_speed: number;
+  up_info_data: number;
+  connection_status: string;
+}
+
+export interface QbitTorrentProperties {
+  save_path?: string;
+  completion_on?: number;
+  comment?: string;
+  total_size?: number;
+  piece_size?: number;
+}
+
+export interface QbitPeerList {
+  peers: Record<
+    string,
+    {
+      ip: string;
+      port: number;
+      client: string;
+      progress: number;
+      dl_speed: number;
+      up_speed: number;
+    }
+  >;
+}
+
+export interface QbitCapabilities {
+  version: string;
+  hasPeersEndpoint: boolean;
+  hasBanEndpoint: boolean;
+}

apps/server/src/realtime/emitter.ts

@@ -0,0 +1,43 @@
+import { Server } from "socket.io";
+import { EVENTS } from "./events";
+import { StatusSnapshot } from "../status/status.service";
+import { LoopJob, TimerLog, TimerSummary } from "../types";
+
+let io: Server | null = null;
+
+export const initEmitter = (server: Server) => {
+  io = server;
+};
+
+export const emitStatusSnapshot = (snapshot: StatusSnapshot) => {
+  io?.emit(EVENTS.STATUS_SNAPSHOT, snapshot);
+};
+
+export const emitStatusUpdate = (snapshot: StatusSnapshot) => {
+  io?.emit(EVENTS.STATUS_UPDATE, snapshot);
+};
+
+export const emitJobMetrics = (job: LoopJob) => {
+  io?.emit(EVENTS.JOB_METRICS, job);
+};
+
+export const emitJobLog = (payload: {
+  jobId: string;
+  level: "INFO" | "WARN" | "ERROR";
+  message: string;
+  createdAt: string;
+}) => {
+  io?.emit(EVENTS.JOB_LOG, payload);
+};
+
+export const emitQbitHealth = (payload: StatusSnapshot["qbit"]) => {
+  io?.emit(EVENTS.QBIT_HEALTH, payload);
+};
+
+export const emitTimerLog = (payload: TimerLog) => {
+  io?.emit(EVENTS.TIMER_LOG, payload);
+};
+
+export const emitTimerSummary = (payload: TimerSummary) => {
+  io?.emit(EVENTS.TIMER_SUMMARY, payload);
+};

apps/server/src/realtime/events.ts

@@ -0,0 +1,9 @@
+export const EVENTS = {
+  STATUS_SNAPSHOT: "status:snapshot",
+  STATUS_UPDATE: "status:update",
+  JOB_METRICS: "job:metrics",
+  JOB_LOG: "job:log",
+  QBIT_HEALTH: "qbit:health",
+  TIMER_LOG: "timer:log",
+  TIMER_SUMMARY: "timer:summary",
+};

apps/server/src/realtime/socket.ts

@@ -0,0 +1,59 @@
+import { Server } from "socket.io";
+import http from "node:http";
+import { verifyToken } from "../auth/auth.service";
+import { getStatusSnapshot } from "../status/status.service";
+import { EVENTS } from "./events";
+import { config, isDev } from "../config";
+
+const parseCookies = (cookieHeader?: string) => {
+  const cookies: Record<string, string> = {};
+  if (!cookieHeader) {
+    return cookies;
+  }
+  cookieHeader.split(";").forEach((part) => {
+    const [key, ...rest] = part.trim().split("=");
+    cookies[key] = decodeURIComponent(rest.join("="));
+  });
+  return cookies;
+};
+
+export const createSocketServer = (server: http.Server) => {
+  const io = new Server(server, {
+    cors: isDev
+      ? {
+          origin: true,
+          credentials: true,
+        }
+      : undefined,
+  });
+
+  io.use((socket, next) => {
+    const authToken = socket.handshake.auth?.token as string | undefined;
+    if (authToken) {
+      try {
+        verifyToken(authToken);
+        return next();
+      } catch (error) {
+        return next(new Error("Unauthorized"));
+      }
+    }
+    const cookies = parseCookies(socket.request.headers.cookie);
+    const token = cookies["qbuffer_token"];
+    if (!token) {
+      return next(new Error("Unauthorized"));
+    }
+    try {
+      verifyToken(token);
+      return next();
+    } catch (error) {
+      return next(new Error("Unauthorized"));
+    }
+  });
+
+  io.on("connection", async (socket) => {
+    const snapshot = await getStatusSnapshot();
+    socket.emit(EVENTS.STATUS_SNAPSHOT, snapshot);
+  });
+
+  return io;
+};

apps/server/src/status/status.routes.ts

@@ -0,0 +1,11 @@
+import { Router } from "express";
+import { getStatusSnapshot } from "./status.service"
+
+const router = Router();
+
+router.get("/", async (_req, res) => {
+  const snapshot = await getStatusSnapshot();
+  res.json(snapshot);
+});
+
+export default router;

apps/server/src/status/status.service.ts

@@ -0,0 +1,45 @@
+import { DbSchema, LoopJob } from "../types"
+import { QbitCapabilities, QbitTorrentInfo, QbitTransferInfo } from "../qbit/qbit.types"
+import { readDb } from "../storage/jsondb"
+
+export interface StatusSnapshot {
+  qbit: {
+    ok: boolean;
+    version?: string;
+    capabilities?: QbitCapabilities;
+    lastError?: string;
+  };
+  torrents: QbitTorrentInfo[];
+  transfer?: QbitTransferInfo;
+  jobs: LoopJob[];
+}
+
+let snapshot: StatusSnapshot = {
+  qbit: { ok: false },
+  torrents: [],
+  transfer: undefined,
+  jobs: [],
+};
+
+export const setQbitStatus = (status: StatusSnapshot["qbit"]) => {
+  snapshot.qbit = status;
+};
+
+export const setTorrentsStatus = (
+  torrents: QbitTorrentInfo[],
+  transfer?: QbitTransferInfo
+) => {
+  snapshot.torrents = torrents;
+  snapshot.transfer = transfer;
+};
+
+export const refreshJobsStatus = async () => {
+  const db: DbSchema = await readDb();
+  snapshot.jobs = db.loopJobs;
+  return snapshot.jobs;
+};
+
+export const getStatusSnapshot = async (): Promise<StatusSnapshot> => {
+  await refreshJobsStatus();
+  return snapshot;
+};

apps/server/src/storage/jsondb.ts

@@ -0,0 +1,90 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { config } from "../config"
+import { DbSchema } from "../types"
+import { Mutex } from "./mutex"
+
+const mutex = new Mutex();
+
+const defaultDb = (): DbSchema => ({
+  users: [],
+  settings: {
+    pollIntervalMs: config.pollIntervalMs,
+    enforceIntervalMs: config.enforceIntervalMs,
+    defaultDelayMs: config.defaultDelayMs,
+    maxLoopLimit: config.maxLoopLimit,
+  },
+  loopJobs: [],
+  profiles: [],
+  auditLogs: [],
+  archives: {},
+  timerRules: [],
+  timerLogs: [],
+  timerSummary: {
+    totalDeleted: 0,
+    totalSeededSeconds: 0,
+    totalUploadedBytes: 0,
+    updatedAt: new Date().toISOString(),
+  },
+});
+
+const rotateBackups = async (dbPath: string) => {
+  const dir = path.dirname(dbPath);
+  const base = path.basename(dbPath);
+  for (let i = 2; i >= 0; i -= 1) {
+    const src = path.join(dir, `${base}.bak${i}`);
+    const dest = path.join(dir, `${base}.bak${i + 1}`);
+    try {
+      await fs.rename(src, dest);
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "ENOENT") {
+        throw error;
+      }
+    }
+  }
+  try {
+    await fs.copyFile(dbPath, path.join(dir, `${base}.bak0`));
+  } catch (error) {
+    if ((error as NodeJS.ErrnoException).code !== "ENOENT") {
+      throw error;
+    }
+  }
+};
+
+const writeRaw = async (data: DbSchema) => {
+  await rotateBackups(config.dbPath);
+  const tempPath = `${config.dbPath}.tmp`;
+  await fs.writeFile(tempPath, JSON.stringify(data, null, 2), "utf-8");
+  await fs.rename(tempPath, config.dbPath);
+};
+
+export const readDb = async (): Promise<DbSchema> => {
+  return mutex.run(async () => {
+    try {
+      const content = await fs.readFile(config.dbPath, "utf-8");
+      const parsed = JSON.parse(content) as DbSchema;
+      parsed.timerRules ??= [];
+      parsed.timerLogs ??= [];
+      parsed.timerSummary ??= {
+        totalDeleted: 0,
+        totalSeededSeconds: 0,
+        totalUploadedBytes: 0,
+        updatedAt: new Date().toISOString(),
+      };
+      return parsed;
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "ENOENT") {
+        throw error;
+      }
+      const initial = defaultDb();
+      await writeRaw(initial);
+      return initial;
+    }
+  });
+};
+
+export const writeDb = async (data: DbSchema): Promise<void> => {
+  await mutex.run(async () => {
+    await writeRaw(data);
+  });
+};

apps/server/src/storage/mutex.ts

@@ -0,0 +1,12 @@
+export class Mutex {
+  private current: Promise<void> = Promise.resolve();
+
+  async run<T>(fn: () => Promise<T>): Promise<T> {
+    const next = this.current.then(fn, fn);
+    this.current = next.then(
+      () => undefined,
+      () => undefined
+    );
+    return next;
+  }
+}

apps/server/src/storage/paths.ts

@@ -0,0 +1,7 @@
+import fs from "node:fs/promises";
+import { config } from "../config"
+
+export const ensureDataPaths = async () => {
+  await fs.mkdir(config.dataDir, { recursive: true });
+  await fs.mkdir(config.torrentArchiveDir, { recursive: true });
+};

apps/server/src/timer/timer.routes.ts

@@ -0,0 +1,58 @@
+import { Router } from "express";
+import { randomUUID } from "node:crypto";
+import { readDb, writeDb } from "../storage/jsondb";
+import { TimerRule } from "../types";
+import { nowIso } from "../utils/time";
+import { z } from "zod";
+
+const router = Router();
+
+const ruleSchema = z.object({
+  tags: z.array(z.string().min(1)).min(1),
+  seedLimitSeconds: z.number().int().min(60).max(60 * 60 * 24 * 365),
+});
+
+router.get("/rules", async (_req, res) => {
+  const db = await readDb();
+  res.json(db.timerRules ?? []);
+});
+
+router.post("/rules", async (req, res) => {
+  const parsed = ruleSchema.safeParse(req.body);
+  if (!parsed.success) {
+    return res.status(400).json({ error: parsed.error.flatten() });
+  }
+  const db = await readDb();
+  const rule: TimerRule = {
+    id: randomUUID(),
+    tags: parsed.data.tags,
+    seedLimitSeconds: parsed.data.seedLimitSeconds,
+    createdAt: nowIso(),
+  };
+  db.timerRules = [...(db.timerRules ?? []), rule];
+  await writeDb(db);
+  res.json(rule);
+});
+
+router.delete("/rules/:ruleId", async (req, res) => {
+  const db = await readDb();
+  const next = (db.timerRules ?? []).filter((rule) => rule.id !== req.params.ruleId);
+  if (next.length === (db.timerRules ?? []).length) {
+    return res.status(404).json({ error: "Rule not found" });
+  }
+  db.timerRules = next;
+  await writeDb(db);
+  res.json({ ok: true });
+});
+
+router.get("/logs", async (_req, res) => {
+  const db = await readDb();
+  res.json(db.timerLogs ?? []);
+});
+
+router.get("/summary", async (_req, res) => {
+  const db = await readDb();
+  res.json(db.timerSummary ?? null);
+});
+
+export default router;

apps/server/src/timer/timer.types.ts

@@ -0,0 +1,4 @@
+export interface TimerRuleInput {
+  tags: string[];
+  seedLimitSeconds: number;
+}

apps/server/src/timer/timer.worker.ts

@@ -0,0 +1,94 @@
+import { randomUUID } from "node:crypto";
+import { QbitClient } from "../qbit/qbit.client";
+import { readDb, writeDb } from "../storage/jsondb";
+import { TimerLog, TimerSummary } from "../types";
+import { emitTimerLog, emitTimerSummary } from "../realtime/emitter";
+import { nowIso } from "../utils/time";
+
+const MAX_LOGS = 2000;
+
+const normalizeTags = (tags?: string, category?: string) => {
+  const tagList = tags ? tags.split(",").map((tag) => tag.trim()).filter(Boolean) : [];
+  if (category) {
+    tagList.push(category);
+  }
+  return Array.from(new Set(tagList.map((tag) => tag.toLowerCase())));
+};
+
+export const startTimerWorker = (qbit: QbitClient, intervalMs: number) => {
+  setInterval(async () => {
+    const db = await readDb();
+    const rules = db.timerRules ?? [];
+    if (rules.length === 0) {
+      return;
+    }
+    const torrents = await qbit.getTorrentsInfo();
+    let summary: TimerSummary =
+      db.timerSummary ?? {
+        totalDeleted: 0,
+        totalSeededSeconds: 0,
+        totalUploadedBytes: 0,
+        updatedAt: nowIso(),
+      };
+
+    const logs: TimerLog[] = [];
+
+    for (const torrent of torrents) {
+      const tags = normalizeTags(torrent.tags, torrent.category);
+      const addedOnMs = Number(torrent.added_on ?? 0) * 1000;
+      const matchingRules = rules.filter((rule) => {
+        const ruleCreatedAtMs = Date.parse(rule.createdAt);
+        if (Number.isFinite(ruleCreatedAtMs) && addedOnMs > 0) {
+          if (addedOnMs < ruleCreatedAtMs) {
+            return false;
+          }
+        }
+        return rule.tags.some((tag) => tags.includes(tag.toLowerCase()));
+      });
+      if (matchingRules.length === 0) {
+        continue;
+      }
+      const matchingRule = matchingRules.reduce((best, current) =>
+        current.seedLimitSeconds < best.seedLimitSeconds ? current : best
+      );
+      const seedingSeconds = Number(torrent.seeding_time ?? 0);
+      if (seedingSeconds < matchingRule.seedLimitSeconds) {
+        continue;
+      }
+
+      try {
+        await qbit.deleteTorrent(torrent.hash, true);
+      } catch (error) {
+        continue;
+      }
+
+      const logEntry: TimerLog = {
+        id: randomUUID(),
+        hash: torrent.hash,
+        name: torrent.name,
+        sizeBytes: torrent.size,
+        tracker: torrent.tracker,
+        tags,
+        category: torrent.category,
+        seedingTimeSeconds: seedingSeconds,
+        uploadedBytes: torrent.uploaded ?? 0,
+        deletedAt: nowIso(),
+      };
+      logs.push(logEntry);
+      summary = {
+        totalDeleted: summary.totalDeleted + 1,
+        totalSeededSeconds: summary.totalSeededSeconds + seedingSeconds,
+        totalUploadedBytes: summary.totalUploadedBytes + (torrent.uploaded ?? 0),
+        updatedAt: nowIso(),
+      };
+      emitTimerLog(logEntry);
+      emitTimerSummary(summary);
+    }
+
+    if (logs.length > 0) {
+      db.timerLogs = [...(db.timerLogs ?? []), ...logs].slice(-MAX_LOGS);
+      db.timerSummary = summary;
+      await writeDb(db);
+    }
+  }, intervalMs);
+};

apps/server/src/torrent/torrent.archive.ts

@@ -0,0 +1,46 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { readDb, writeDb } from "../storage/jsondb";
+import { ArchiveStatus } from "../types";
+import { nowIso } from "../utils/time";
+import { config } from "../config";
+
+export const setArchiveStatus = async (status: ArchiveStatus) => {
+  const db = await readDb();
+  db.archives[status.hash] = status;
+  await writeDb(db);
+  return status;
+};
+
+export const getArchiveStatus = async (hash: string) => {
+  const db = await readDb();
+  const existing = db.archives[hash];
+  const torrentPath = path.join(config.torrentArchiveDir, `${hash}.torrent`);
+  try {
+    await fs.access(torrentPath);
+    if (!existing || existing.status !== "READY") {
+      const updated: ArchiveStatus = {
+        hash,
+        status: "READY",
+        torrentFilePath: torrentPath,
+        source: existing?.source ?? "manual",
+        updatedAt: nowIso(),
+      };
+      db.archives[hash] = updated;
+      await writeDb(db);
+      return updated;
+    }
+  } catch (error) {
+    // File does not exist; fall back to stored status.
+  }
+  return existing;
+};
+
+export const createPendingArchive = async (hash: string) => {
+  const status: ArchiveStatus = {
+    hash,
+    status: "PENDING",
+    updatedAt: nowIso(),
+  };
+  return setArchiveStatus(status);
+};

apps/server/src/torrent/torrent.generator.ts

@@ -0,0 +1,41 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+import { config } from "../config";
+import { logger } from "../utils/logger";
+
+export const generateTorrentFile = async (
+  magnet: string,
+  hash: string
+): Promise<string> => {
+  const targetPath = path.join(config.torrentArchiveDir, `${hash}.torrent`);
+  const { default: WebTorrent } = await import("webtorrent");
+  const client = new WebTorrent();
+
+  return new Promise((resolve, reject) => {
+    const torrent = client.add(magnet, { path: config.dataDir });
+    const timeout = setTimeout(() => {
+      client.destroy();
+      reject(new Error("Metadata fetch timeout"));
+    }, 120_000);
+
+    torrent.on("metadata", async () => {
+      clearTimeout(timeout);
+      try {
+        const buffer = torrent.torrentFile;
+        await fs.writeFile(targetPath, buffer);
+        resolve(targetPath);
+      } catch (error) {
+        reject(error);
+      } finally {
+        client.destroy();
+      }
+    });
+
+    torrent.on("error", (error) => {
+      logger.error({ error }, "Torrent metadata error");
+      clearTimeout(timeout);
+      client.destroy();
+      reject(error);
+    });
+  });
+};

apps/server/src/torrent/torrent.routes.ts

@@ -0,0 +1,121 @@
+import { Router } from "express";
+import multer from "multer";
+import path from "node:path";
+import fs from "node:fs/promises";
+import { getQbitClient } from "../qbit/qbit.context";
+import { getArchiveStatus, setArchiveStatus } from "./torrent.archive";
+import { nowIso } from "../utils/time";
+import { appendAuditLog, logger } from "../utils/logger";
+import { config } from "../config";
+
+const router = Router();
+const upload = multer({ dest: "/tmp" });
+
+router.post("/select", async (req, res) => {
+  const { hash } = req.body ?? {};
+  if (!hash) {
+    return res.status(400).json({ error: "Missing hash" });
+  }
+  const existing = await getArchiveStatus(hash);
+  if (existing?.status === "READY") {
+    return res.json({ ok: true, hash, archive: existing });
+  }
+  const qbit = getQbitClient();
+  const torrents = await qbit.getTorrentsInfo();
+  const torrent = torrents.find((t) => t.hash === hash);
+  if (!torrent) {
+    return res.status(404).json({ error: "Torrent not found" });
+  }
+
+  await setArchiveStatus({
+    hash,
+    status: "MISSING",
+    updatedAt: nowIso(),
+  });
+
+  res.json({ ok: true, hash, archive: { status: "MISSING" } });
+});
+
+router.post("/archive/from-selected", async (req, res) => {
+  const { hash } = req.body ?? {};
+  if (!hash) {
+    return res.status(400).json({ error: "Missing hash" });
+  }
+  const existing = await getArchiveStatus(hash);
+  if (existing?.status === "READY") {
+    return res.json({ ok: true, torrentFilePath: existing.torrentFilePath, source: existing.source });
+  }
+  await setArchiveStatus({
+    hash,
+    status: "MISSING",
+    lastError: "Magnet export disabled; upload .torrent manually.",
+    updatedAt: nowIso(),
+  });
+  await appendAuditLog({
+    level: "WARN",
+    event: "ARCHIVE_FAIL",
+    message: `Archive generation disabled for ${hash}; manual upload required`,
+  });
+  return res.status(400).json({ error: "Magnet export disabled; upload .torrent manually." });
+});
+
+router.post("/archive/upload", upload.single("file"), async (req, res) => {
+  const { hash } = req.body ?? {};
+  if (!hash || !req.file) {
+    return res.status(400).json({ error: "Missing hash or file" });
+  }
+  const inputHash = String(hash).toLowerCase();
+  const buffer = await fs.readFile(req.file.path);
+  let warning: string | undefined;
+  try {
+    const { default: parseTorrent } = await import("parse-torrent");
+    const parsed = parseTorrent(buffer);
+    const infoHash = String(parsed.infoHash ?? "").toLowerCase();
+    if (infoHash && infoHash !== inputHash) {
+      await fs.unlink(req.file.path);
+      return res.status(400).json({
+        error: "Torrent hash uyuşmuyor. Doğru .torrent dosyasını seçin.",
+        expected: inputHash,
+        actual: infoHash,
+      });
+    }
+  } catch (error) {
+    warning = "Torrent dosyası okunamadı; yine de arşive kaydedildi.";
+    logger.warn({ error, hash: inputHash }, "Torrent parse failed; storing archive anyway");
+  }
+  const targetPath = path.join(config.torrentArchiveDir, `${hash}.torrent`);
+  await fs.writeFile(targetPath, buffer);
+  await fs.unlink(req.file.path);
+  await setArchiveStatus({
+    hash,
+    status: "READY",
+    torrentFilePath: targetPath,
+    source: "manual",
+    updatedAt: nowIso(),
+  });
+  try {
+    const qbit = getQbitClient();
+    await qbit.addTorrentByFile(targetPath);
+    return res.json({
+      ok: true,
+      torrentFilePath: targetPath,
+      added: true,
+    });
+  } catch (error) {
+    return res.json({
+      ok: true,
+      torrentFilePath: targetPath,
+      added: false,
+    });
+  }
+});
+
+router.get("/archive/status/:hash", async (req, res) => {
+  const status = await getArchiveStatus(req.params.hash);
+  if (!status) {
+    return res.json({ hash: req.params.hash, status: "MISSING" });
+  }
+  return res.json(status);
+});
+
+export default router;

apps/server/src/types.ts

@@ -0,0 +1,131 @@
+export type LoopStatus =
+  | "IDLE"
+  | "RUNNING"
+  | "WAITING_DELAY"
+  | "STOPPED"
+  | "ERROR"
+  | "COMPLETED";
+
+export type EnforcementMode = "aggressive-soft";
+
+export interface User {
+  username: string;
+  passwordHash: string;
+  createdAt: string;
+}
+
+export interface Settings {
+  pollIntervalMs: number;
+  enforceIntervalMs: number;
+  defaultDelayMs: number;
+  maxLoopLimit: number;
+}
+
+export interface LoopJob {
+  id: string;
+  torrentHash: string;
+  name: string;
+  sizeBytes: number;
+  magnet?: string;
+  torrentFilePath?: string;
+  allowIp: string;
+  targetLoops: number;
+  doneLoops: number;
+  delayMs: number;
+  deleteDataBetweenLoops: boolean;
+  enforcementMode: EnforcementMode;
+  status: LoopStatus;
+  currentRun?: {
+    startedAt: string;
+    lastProgress: number;
+    lastProgressAt?: string;
+    stalledSince?: string;
+    downloadedThisRunBytes: number;
+    avgSpeed: number;
+  };
+  totals: {
+    totalDownloadedBytes: number;
+    totalTimeMs: number;
+  };
+  bans: {
+    bannedIps: string[];
+    lastBanAt?: string;
+  };
+  nextRunAt?: string;
+  createdAt: string;
+  updatedAt: string;
+  lastError?: string;
+}
+
+export interface Profile {
+  id: string;
+  name: string;
+  allowIp: string;
+  delayMs: number;
+  targetLoops: number;
+  createdAt: string;
+}
+
+export interface TimerRule {
+  id: string;
+  tags: string[];
+  seedLimitSeconds: number;
+  createdAt: string;
+}
+
+export interface TimerLog {
+  id: string;
+  hash: string;
+  name: string;
+  sizeBytes: number;
+  tracker?: string;
+  tags: string[];
+  category?: string;
+  seedingTimeSeconds: number;
+  uploadedBytes: number;
+  deletedAt: string;
+}
+
+export interface TimerSummary {
+  totalDeleted: number;
+  totalSeededSeconds: number;
+  totalUploadedBytes: number;
+  updatedAt: string;
+}
+
+export interface AuditLog {
+  id: string;
+  level: "INFO" | "WARN" | "ERROR";
+  event:
+    | "JOB_STARTED"
+    | "JOB_COMPLETED_LOOP"
+    | "JOB_COMPLETED_ALL"
+    | "JOB_RESTARTED"
+    | "PEER_BANNED"
+    | "QBIT_RELOGIN"
+    | "ARCHIVE_SUCCESS"
+    | "ARCHIVE_FAIL";
+  message: string;
+  createdAt: string;
+}
+
+export interface ArchiveStatus {
+  hash: string;
+  status: "PENDING" | "READY" | "FAILED" | "MISSING";
+  torrentFilePath?: string;
+  source?: "manual" | "generated" | "exported";
+  lastError?: string;
+  updatedAt: string;
+}
+
+export interface DbSchema {
+  users: User[];
+  settings: Settings;
+  loopJobs: LoopJob[];
+  profiles: Profile[];
+  auditLogs: AuditLog[];
+  archives: Record<string, ArchiveStatus>;
+  timerRules?: TimerRule[];
+  timerLogs?: TimerLog[];
+  timerSummary?: TimerSummary;
+}

apps/server/src/utils/logger.ts

@@ -0,0 +1,34 @@
+import fs from "node:fs/promises";
+import { randomUUID } from "node:crypto";
+import pino from "pino";
+import { config } from "../config"
+import { AuditLog } from "../types"
+
+export const logger = pino({
+  level: process.env.LOG_LEVEL ?? "info",
+});
+
+export const appendAuditLog = async (
+  entry: Omit<AuditLog, "id" | "createdAt">
+) => {
+  const logEntry: AuditLog = {
+    id: randomUUID(),
+    createdAt: new Date().toISOString(),
+    ...entry,
+  };
+  try {
+    let existing: AuditLog[] = [];
+    try {
+      const content = await fs.readFile(config.logsPath, "utf-8");
+      existing = JSON.parse(content) as AuditLog[];
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "ENOENT") {
+        throw error;
+      }
+    }
+    const next = [...existing, logEntry].slice(-2000);
+    await fs.writeFile(config.logsPath, JSON.stringify(next, null, 2), "utf-8");
+  } catch (error) {
+    logger.error({ error }, "Failed to append audit log");
+  }
+};

apps/server/src/utils/time.ts

@@ -0,0 +1,7 @@
+export const nowIso = () => new Date().toISOString();
+
+export const secondsBetween = (startIso: string, endIso: string) => {
+  const start = new Date(startIso).getTime();
+  const end = new Date(endIso).getTime();
+  return Math.max(0, (end - start) / 1000);
+};

apps/server/src/utils/validators.ts

@@ -0,0 +1,25 @@
+import { z } from "zod";
+
+export const allowIpSchema = z
+  .string()
+  .ip({ version: "v4" })
+  .or(z.string().ip({ version: "v6" }));
+
+export const loopStartSchema = z.object({
+  hash: z.string().min(1),
+  allowIp: allowIpSchema,
+  targetLoops: z.number().int().min(1).max(1000),
+  delayMs: z.number().int().min(0).max(86_400_000),
+});
+
+export const dryRunSchema = z.object({
+  hash: z.string().min(1),
+  allowIp: allowIpSchema,
+});
+
+export const profileSchema = z.object({
+  name: z.string().min(1).max(64),
+  allowIp: allowIpSchema,
+  delayMs: z.number().int().min(0).max(86_400_000),
+  targetLoops: z.number().int().min(1).max(1000),
+});

apps/server/tsconfig.json

@@ -0,0 +1,14 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "CommonJS",
+    "moduleResolution": "Node",
+    "outDir": "dist",
+    "rootDir": "src",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "resolveJsonModule": true
+  },
+  "include": ["src"]
+}