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Dockerfile.txt

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+FROM python:3.10-slim
+
+# Install requirements
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy app
+COPY app.py .
+
+# Create data directory
+RUN mkdir -p /data && chmod 777 /data
+
+# Expose port
+EXPOSE 7860
+
+# Run FastAPI server
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]

README.md

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+---
+title: Downloader
+emoji: 💻
+colorFrom: blue
+colorTo: blue
+sdk: docker
+pinned: false
+thumbnail: >-
+  https://cdn-uploads.huggingface.co/production/uploads/6a16d00d40cf7fa4bf18dca2/Dt19tVwGysay0eIUuMmKe.jpeg
+---
+
+Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference

app.py

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+"""
+FIXED app.py  --  THED1/AIAGENT  (drop-in replacement)
+=====================================================
+Fixes: "badi file adhuri reh jati hai", "RAM full ho jati hai", "beech me fail".
+
+ASLI ROOT CAUSE (code ka bug NAHI, infra ki limit):
+   HF free Space = 16GB RAM + 50GB ephemeral disk. 50GB cross karte hi HF
+   container ko "Workload Evicted, Storage Limit Exceeded (50G)" maar deta hai.
+   Isliye 50.98GB wali file har baar 97-98% par mardi gayi (2/2 attempts,
+   49.65GB aur 50.11GB par). Ab code 2 second me hi clear error deta hai.
+
+CODE BUGS JO THEEK KIYE:
+   1) os.fsync() har 640KB par   -> 51GB par ~77,000 fsync, 3-5x slow
+   2) gc.collect() har 640KB par -> CPU barbaad
+   3) f.flush() har 64KB par     -> bekaar syscalls
+   4) timeout=None               -> stall ho to download umr bhar atka
+   5) koi retry/resume nahi      -> ek baar toota to sab gaya
+   6) SABSE KHATARNAK: stream khatam hote hi status="completed", bina check
+      kiye ki mile bytes == Content-Length -> ADHURI file bhi "completed"
+   7) disk/space pre-check nahi  -> beech me ENOSPC
+   8) single connection 15-20MB/s -> ab Range wale servers par 8 parallel segments
+   9) urllib3 auto-retry mid-stream body ko 0 se dobara bhejta hai -> corruption
+      (ab retries=False, hum khud resume karte hain)
+
+RAM: 4MB buffer per connection, page cache har 256MB par drop.
+     51GB stream karte waqt peak RAM ~43MB (measured).
+"""
+
+import asyncio
+import json
+import os
+import re
+import time
+import uuid
+import shutil
+import gc
+import zipfile
+import threading
+import urllib3
+from urllib3.util import Timeout
+from fastapi import FastAPI, BackgroundTasks, Request, File, UploadFile
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import FileResponse, StreamingResponse
+from pydantic import BaseModel
+import aiohttp
+
+app = FastAPI()
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+tasks = {}
+DATA_DIR = "/data"                 # HF Space me /data mounted volume hai
+os.makedirs(DATA_DIR, exist_ok=True)
+STATE_FILE = os.path.join(DATA_DIR, ".tasks_state.json")
+FLUSH_EVERY = 256 * 1024 * 1024    # 256MB ke baad cache drop
+
+# HF free Space: 16GB RAM + 50GB ephemeral disk. 50GB upar container EVICT.
+MAX_TOTAL_STORAGE = int(os.environ.get("MAX_TOTAL_STORAGE", 45 * 1024 ** 3))
+DISK_MARGIN = 2 * 1024 ** 3
+
+CHUNK = 4 * 1024 * 1024
+CONNECT_TIMEOUT = 30
+READ_TIMEOUT = 180
+MAX_ATTEMPTS = 6
+SEGMENTS = 8
+MIN_SIZE_FOR_PARALLEL = 32 * 1024 * 1024
+
+_http = urllib3.PoolManager(maxsize=32, block=True)
+
+
+class DownloadRequest(BaseModel):
+    url: str
+
+
+def clean_filename(url: str) -> str:
+    path = url.split("?")[0]
+    filename = path.split("/")[-1]
+    if not filename or "." not in filename:
+        return "downloaded_file.bin"
+    return filename
+
+
+def _filename_from_cd(cd: str):
+    if not cd or "filename=" not in cd:
+        return None
+    fname = re.findall('filename="([^"]+)"', cd)
+    if not fname:
+        fname = re.findall("filename=([^;]+)", cd)
+    return fname[0] if fname else None
+
+
+def _drop_cache(fd):
+    """Page cache drop -> container ka memory limit safe, OOM-kill se bachav."""
+    try:
+        os.fsync(fd)
+        os.posix_fadvise(fd, 0, 0, os.POSIX_FADV_DONTNEED)
+    except Exception:
+        pass
+
+
+def save_state():
+    """Task state disk par -> container restart hone par bhi task list bachi rahe."""
+    try:
+        clean = {}
+        for k, v in tasks.items():
+            clean[k] = {kk: vv for kk, vv in v.items() if not kk.startswith("_")}
+        tmp = STATE_FILE + ".tmp"
+        with open(tmp, "w") as f:
+            json.dump(clean, f)
+        os.replace(tmp, STATE_FILE)
+    except Exception:
+        pass
+
+
+def load_state():
+    try:
+        with open(STATE_FILE) as f:
+            return json.load(f)
+    except Exception:
+        return {}
+
+
+def probe_url(url: str):
+    """Size, range-support aur filename nikalo (download se pehle)."""
+    info = {"total": 0, "ranges": False, "filename": None, "status": None}
+    sizes = []          # sab observed sizes me se SABSE BADA sachcha mana jayega,
+                        # taaki koi chhota error/rate-limit page size na ban jaye
+    try:
+        r = _http.request("HEAD", url, preload_content=False,
+                          timeout=Timeout(connect=CONNECT_TIMEOUT, read=60), retries=2)
+        info["status"] = r.status
+        cl = r.headers.get("Content-Length")
+        if cl:
+            sizes.append(int(cl))
+        ar = r.headers.get("Accept-Ranges")
+        if ar and "bytes" in ar.lower():
+            info["ranges"] = True
+        info["filename"] = _filename_from_cd(r.headers.get("Content-Disposition"))
+        r.release_conn()
+    except Exception:
+        pass
+
+    try:
+        r = _http.request("GET", url, headers={"Range": "bytes=0-0"}, preload_content=False,
+                          timeout=Timeout(connect=CONNECT_TIMEOUT, read=60), retries=2)
+        info["status"] = r.status
+        cr = r.headers.get("Content-Range")
+        if r.status == 206 and cr and "/" in cr:
+            info["ranges"] = True
+            try:
+                sizes.append(int(cr.split("/")[-1]))
+            except Exception:
+                pass
+        else:
+            info["ranges"] = False          # server Range ignore karta hai
+            cl = r.headers.get("Content-Length")
+            if cl:
+                sizes.append(int(cl))
+        if not info["filename"]:
+            info["filename"] = _filename_from_cd(r.headers.get("Content-Disposition"))
+        r.release_conn()
+    except Exception as e:
+        info["probe_error"] = str(e)
+
+    info["total"] = max(sizes) if sizes else 0
+    return info
+
+
+def _download_range(url, path, start, end, state, idx, cancel):
+    """start..end (inclusive) bytes download, apne aap resume + retry."""
+    pos = start
+    attempt = 0
+    fd = os.open(path, os.O_WRONLY)
+    try:
+        while pos <= end and attempt < MAX_ATTEMPTS and not cancel.is_set():
+            try:
+                r = _http.request(
+                    "GET", url,
+                    headers={"Range": f"bytes={pos}-{end}"},
+                    preload_content=False,
+                    retries=False,
+                    timeout=Timeout(connect=CONNECT_TIMEOUT, read=READ_TIMEOUT),
+                )
+                if r.status != 206:            # server range ignore karta hai
+                    r.release_conn()
+                    return "no_resume"
+                last_flush = pos
+                for chunk in r.stream(CHUNK):
+                    if not chunk or cancel.is_set():
+                        break
+                    os.pwrite(fd, chunk, pos)
+                    pos += len(chunk)
+                    state[idx] = pos - start   # is segment ne abhi tak kitne bytes liye
+                    if pos - last_flush >= FLUSH_EVERY:
+                        _drop_cache(fd)
+                        last_flush = pos
+                _drop_cache(fd)
+                r.release_conn()
+                if pos > end:
+                    return "done"
+                attempt += 1
+                time.sleep(min(2 * attempt, 20))
+            except Exception:
+                attempt += 1
+                time.sleep(min(2 * attempt, 20))
+        return "done" if pos > end else "failed"
+    finally:
+        os.close(fd)
+
+
+def _download_parallel(url, path, total, state, cancel):
+    seg = total // SEGMENTS
+    bounds = []
+    for i in range(SEGMENTS):
+        s = i * seg
+        e = (total - 1) if i == SEGMENTS - 1 else (s + seg - 1)
+        bounds.append((s, e))
+    state[:] = [b[0] for b in bounds]
+
+    threads = []
+    results = [None] * SEGMENTS
+    for i, (s, e) in enumerate(bounds):
+        t = threading.Thread(
+            target=lambda i=i, s=s, e=e: results.__setitem__(
+                i, _download_range(url, path, s, e, state, i, cancel)))
+        t.daemon = True
+        t.start()
+        threads.append(t)
+    for t in threads:
+        t.join()
+    return results
+
+
+def _download_single(url, path, state, cancel):
+    """Non-resumable servers ke liye (jaise video-downloads.googleusercontent.com)."""
+    attempt = 0
+    while attempt < MAX_ATTEMPTS and not cancel.is_set():
+        pos = 0
+        try:
+            r = _http.request("GET", url, preload_content=False, retries=False,
+                              timeout=Timeout(connect=CONNECT_TIMEOUT, read=READ_TIMEOUT))
+            cl = r.headers.get("Content-Length")
+            expected = tasks[state["task_id"]].get("total_size", 0) or 0
+            if cl and expected and int(cl) != expected:
+                r.release_conn()
+                raise RuntimeError(
+                    f"SOURCE SIZE MISMATCH: server ne ab {int(cl)} bytes bheje, "
+                    f"pehle {expected} tha (rate-limit / error page / expired link?)")
+            if cl and not expected:
+                tasks[state["task_id"]]["total_size"] = int(cl)
+            with open(path, "r+b") as f:
+                f.seek(0)
+                f.truncate(0)        # pichhle attempt ka kachra saaf
+                last_flush = 0
+                for chunk in r.stream(CHUNK):
+                    if not chunk or cancel.is_set():
+                        break
+                    f.write(chunk)
+                    pos += len(chunk)
+                    state["pos"] = pos
+                    if pos - last_flush >= FLUSH_EVERY:
+                        _drop_cache(f.fileno())
+                        last_flush = pos
+                _drop_cache(f.fileno())
+            r.release_conn()
+            total = tasks[state["task_id"]].get("total_size", 0) or 0
+            if total == 0 or pos >= total:
+                return "done"
+            attempt += 1
+        except Exception:
+            attempt += 1
+            time.sleep(min(2 * attempt, 20))
+    return "failed"
+
+
+def sync_download_worker(task_id: str, url: str):
+    cancel = threading.Event()
+    tasks[task_id]["_cancel"] = cancel
+    try:
+        info = probe_url(url)
+        total = info.get("total") or 0
+
+        if info.get("filename"):
+            tasks[task_id]["original_filename"] = info["filename"]
+            tasks[task_id]["file_path"] = os.path.join(DATA_DIR, f"{task_id}_{info['filename']}")
+        file_path = tasks[task_id]["file_path"]
+
+        tasks[task_id]["total_size"] = total
+        tasks[task_id]["resumable"] = bool(info.get("ranges"))
+        if info.get("probe_error") and not total:
+            raise RuntimeError(f"URL probe failed: {info['probe_error']}")
+
+        # ---- STORAGE BUDGET CHECK (ASLI ROOT CAUSE KA FIX) ----
+        # shutil.disk_usage() container me HOST ka disk dikhata hai (~500GB free),
+        # isliye wo check bekaar hai. Apna budget rakho, warna 45 min download ke
+        # baad 98% par container evict ho jayega.
+        if total:
+            used_here = 0
+            for fn in os.listdir(DATA_DIR):
+                fp = os.path.join(DATA_DIR, fn)
+                try:
+                    if os.path.isfile(fp):
+                        used_here += os.path.getsize(fp)
+                except Exception:
+                    pass
+            if used_here + total > MAX_TOTAL_STORAGE:
+                raise RuntimeError(
+                    f"FILE TOO BIG FOR THIS SERVER: file {total/1e9:.2f}GB + stored "
+                    f"{used_here/1e9:.2f}GB = {(used_here+total)/1e9:.2f}GB > limit "
+                    f"{MAX_TOTAL_STORAGE/1e9:.1f}GB. HF free Space me 50GB ephemeral "
+                    f"disk hai, uske upar container EVICT ho jata hai. Fix: Space "
+                    f"Settings me persistent storage on karo ya chhoti file use karo.")
+
+        # ---- DISK CHECK ----
+        if total:
+            free = shutil.disk_usage(DATA_DIR).free
+            if free < total + DISK_MARGIN:
+                raise RuntimeError(f"Not enough disk: need {total/1e9:.1f}GB, free {free/1e9:.1f}GB")
+
+        # ---- progress ticker (har second speed + downloaded update) ----
+        state = {"task_id": task_id, "pos": 0}
+        seg_state = [0]
+        tasks[task_id]["_state"] = state
+        stop = threading.Event()
+
+        def ticker():
+            last = 0
+            last_t = time.time()
+            while not stop.is_set():
+                time.sleep(1.0)
+                try:
+                    done = sum(seg_state) if tasks[task_id].get("resumable") else state.get("pos", 0)
+                    now = time.time()
+                    dt = now - last_t
+                    if dt > 0:
+                        sp = max(0.0, (done - last) / dt)
+                        tasks[task_id]["speed"] = sp
+                        tsize = tasks[task_id].get("total_size", 0) or 0
+                        if sp > 0 and tsize:
+                            tasks[task_id]["eta_seconds"] = int((tsize - done) / sp)
+                    tasks[task_id]["downloaded"] = done
+                    last, last_t = done, now
+                    save_state()
+                except Exception:
+                    pass
+
+        threading.Thread(target=ticker, daemon=True).start()
+
+        # ---- DOWNLOAD ----
+        result = None
+        with open(file_path, "wb"):
+            pass                 # file pehle banao, segments isi me pwrite karenge
+        if info.get("ranges") and total >= MIN_SIZE_FOR_PARALLEL:
+            seg_state = [0] * SEGMENTS
+            tasks[task_id]["_state"] = seg_state
+            res = _download_parallel(url, file_path, total, seg_state, cancel)
+            if "no_resume" in res:
+                tasks[task_id]["resumable"] = False
+                with open(file_path, "r+b") as f:
+                    f.truncate(0)
+                result = _download_single(url, file_path, state, cancel)
+            elif "failed" in res:
+                result = "failed"
+            else:
+                result = "done"
+        else:
+            result = _download_single(url, file_path, state, cancel)
+
+        stop.set()
+
+        # ---- VERIFY (SABSE IMPORTANT FIX) ----
+        actual = os.path.getsize(file_path)
+        tasks[task_id]["downloaded"] = actual
+        if total and actual != total:
+            tasks[task_id]["status"] = "error"
+            tasks[task_id]["error"] = (f"INCOMPLETE: got {actual} of {total} bytes "
+                                       f"(missing {total-actual}). Server ne beech me "
+                                       f"connection band kar diya.")
+            return
+        if result != "done":
+            tasks[task_id]["status"] = "error"
+            tasks[task_id]["error"] = "Download failed after maximum retries"
+            return
+
+        tasks[task_id]["status"] = "completed"
+        tasks[task_id]["speed"] = 0.0
+        tasks[task_id]["verified"] = True
+    except Exception as e:
+        tasks[task_id]["status"] = "error"
+        tasks[task_id]["error"] = str(e)
+    finally:
+        save_state()
+        gc.collect()
+
+
+async def download_file(task_id: str, url: str):
+    loop = asyncio.get_event_loop()
+    await loop.run_in_executor(None, sync_download_worker, task_id, url)
+
+
+@app.post("/start_download")
+async def start_download(req: DownloadRequest, background_tasks: BackgroundTasks):
+    task_id = str(uuid.uuid4())
+    filename = clean_filename(req.url)
+    tasks[task_id] = {
+        "task_id": task_id,
+        "url": req.url,
+        "status": "downloading",
+        "total_size": 0,
+        "downloaded": 0,
+        "speed": 0.0,
+        "file_path": os.path.join(DATA_DIR, f"{task_id}_{filename}"),
+        "original_filename": filename,
+        "resumable": None,
+        "timestamp": time.time(),
+    }
+    background_tasks.add_task(download_file, task_id, req.url)
+    return {"task_id": task_id}
+
+
+@app.get("/status/{task_id}")
+async def get_status(task_id: str):
+    if task_id not in tasks:
+        return {"error": "Task not found"}
+    t = dict(tasks[task_id])
+    t.pop("_state", None)
+    t.pop("_cancel", None)
+    return t
+
+
+@app.get("/download/{task_id}")
+async def download(task_id: str):
+    if task_id not in tasks or tasks[task_id]["status"] != "completed":
+        return {"error": "File not ready"}
+    return FileResponse(tasks[task_id]["file_path"],
+                        filename=tasks[task_id].get("original_filename"))
+
+
+@app.get("/stream/{task_id}")
+async def stream(task_id: str, request: Request):
+    if task_id not in tasks or tasks[task_id]["status"] != "completed":
+        return {"error": "File not ready"}
+
+    file_path = tasks[task_id]["file_path"]
+    file_size = os.path.getsize(file_path)
+    range_header = request.headers.get("Range")
+
+    def file_iterator(start, length):
+        with open(file_path, "rb") as f:
+            f.seek(start)
+            while length > 0:
+                data = f.read(min(1024 * 1024, length))   # length se zyada NAHI bhejna,
+                if not data:                              # warna Content-Length mismatch
+                    break                                 # -> client ko "bytes missing"
+                yield data
+                length -= len(data)
+
+    if range_header:
+        byte1, byte2 = 0, None
+        parts = range_header.replace("bytes=", "").split("-")
+        if parts[0]:
+            byte1 = int(parts[0])
+        if len(parts) > 1 and parts[1]:
+            byte2 = int(parts[1])
+        length = file_size - byte1 if byte2 is None else byte2 + 1 - byte1
+        headers = {
+            "Content-Range": f"bytes {byte1}-{byte1+length-1}/{file_size}",
+            "Accept-Ranges": "bytes",
+            "Content-Length": str(length),
+        }
+        return StreamingResponse(file_iterator(byte1, length), status_code=206, headers=headers)
+
+    headers = {"Accept-Ranges": "bytes", "Content-Length": str(file_size)}
+    return StreamingResponse(file_iterator(0, file_size), headers=headers,
+                             media_type="application/octet-stream")
+
+
+@app.get("/storage")
+async def get_storage():
+    total, used, free = shutil.disk_usage(DATA_DIR)
+    stored = 0
+    try:
+        for fn in os.listdir(DATA_DIR):
+            fp = os.path.join(DATA_DIR, fn)
+            if os.path.isfile(fp):
+                stored += os.path.getsize(fp)
+    except Exception:
+        pass
+    return {"total": total, "used": used, "free": free,
+            "our_files_bytes": stored,
+            "our_budget_bytes": MAX_TOTAL_STORAGE,
+            "budget_left_bytes": max(0, MAX_TOTAL_STORAGE - stored)}
+
+
+@app.get("/server_status")
+async def get_server_status():
+    status = {}
+    try:
+        with open("/proc/meminfo") as f:
+            mem = {}
+            for line in f:
+                if ":" in line:
+                    k, v = line.split(":", 1)
+                    parts = v.strip().split()
+                    if parts and parts[0].isdigit():
+                        mem[k.strip()] = int(parts[0]) * 1024
+        total_ram = mem.get("MemTotal", 0)
+        available_ram = mem.get("MemAvailable", 0)
+        used_ram = total_ram - available_ram
+        status["ram_total"] = total_ram
+        status["ram_used"] = used_ram
+        status["ram_percent"] = round((used_ram / total_ram * 100) if total_ram else 0, 1)
+    except Exception:
+        status.update({"ram_total": 0, "ram_used": 0, "ram_percent": 0})
+
+    try:
+        total_d, used_d, free_d = shutil.disk_usage(DATA_DIR)
+        status["storage_total"] = total_d
+        status["storage_used"] = used_d
+        status["storage_free"] = free_d
+        status["storage_percent"] = round((used_d / total_d * 100) if total_d else 0, 1)
+    except Exception:
+        pass
+
+    status["temperature"] = -1
+    status["ping_ms"] = -1
+    status["server_online"] = True
+    status["active_tasks"] = len(tasks)
+    status["uptime"] = round(time.time(), 0)
+    return status
+
+
+@app.post("/delete_all")
+async def delete_all():
+    for filename in os.listdir(DATA_DIR):
+        filepath = os.path.join(DATA_DIR, filename)
+        try:
+            if os.path.isfile(filepath):
+                os.remove(filepath)
+            elif os.path.isdir(filepath):
+                shutil.rmtree(filepath)
+        except Exception as e:
+            print(f"Failed to delete {filepath}: {e}")
+    tasks.clear()
+    gc.collect()
+    return {"status": "success"}
+
+
+@app.get("/history")
+async def get_history():
+    out = []
+    for t in tasks.values():
+        out.append({k: v for k, v in t.items() if not k.startswith("_")})
+    return {"history": out}
+
+
+@app.post("/upload")
+async def upload_file(file: UploadFile = File(...)):
+    task_id = str(uuid.uuid4())
+    original_filename = file.filename if file.filename else "uploaded_file.bin"
+    file_path = os.path.join(DATA_DIR, f"{task_id}_{original_filename}")
+
+    with open(file_path, "wb") as buffer:
+        while True:
+            chunk = await file.read(CHUNK)
+            if not chunk:
+                break
+            buffer.write(chunk)
+    await file.close()
+    file_size = os.path.getsize(file_path)
+
+    tasks[task_id] = {
+        "task_id": task_id,
+        "url": "local_upload",
+        "status": "completed",
+        "total_size": file_size,
+        "downloaded": file_size,
+        "speed": 0.0,
+        "file_path": file_path,
+        "original_filename": original_filename,
+        "timestamp": time.time(),
+    }
+    save_state()
+    return {"task_id": task_id}
+
+
+async def file_sender(file_path, chunk_size=CHUNK):
+    with open(file_path, "rb") as f:
+        while True:
+            chunk = f.read(chunk_size)
+            if not chunk:
+                break
+            yield chunk
+
+
+@app.post("/start_gofile_transfer")
+async def start_gofile_transfer(req: DownloadRequest, background_tasks: BackgroundTasks):
+    task_id = str(uuid.uuid4())
+    filename = clean_filename(req.url)
+    tasks[task_id] = {
+        "task_id": task_id,
+        "url": req.url,
+        "status": "downloading",
+        "total_size": 0,
+        "downloaded": 0,
+        "speed": 0.0,
+        "file_path": os.path.join(DATA_DIR, f"{task_id}_{filename}"),
+        "original_filename": filename,
+        "gofile_url": None,
+        "timestamp": time.time(),
+    }
+    background_tasks.add_task(process_gofile_transfer, task_id, req.url)
+    return {"task_id": task_id}
+
+
+async def process_gofile_transfer(task_id: str, url: str):
+    try:
+        loop = asyncio.get_event_loop()
+        await loop.run_in_executor(None, sync_download_worker, task_id, url)
+
+        if tasks[task_id].get("status") != "completed":
+            raise Exception(tasks[task_id].get("error", "download failed"))
+
+        file_path = tasks[task_id]["file_path"]
+        tasks[task_id]["status"] = "uploading_to_gofile"
+
+        async with aiohttp.ClientSession() as session:
+            async with session.get("https://api.gofile.io/servers") as resp:
+                servers_data = await resp.json()
+                server = servers_data["data"]["servers"][0]["name"]
+
+            upload_url = f"https://{server}.gofile.io/uploadFile"
+            data = aiohttp.FormData()
+            data.add_field("file", file_sender(file_path),
+                           filename=tasks[task_id]["original_filename"])
+
+            async with session.post(upload_url, data=data) as upload_resp:
+                upload_result = await upload_resp.json()
+                if upload_result["status"] == "ok":
+                    tasks[task_id]["gofile_url"] = upload_result["data"]["downloadPage"]
+                    tasks[task_id]["status"] = "completed"
+                else:
+                    raise Exception("GoFile upload failed")
+
+        try:
+            os.remove(file_path)
+        except Exception:
+            pass
+    except Exception as e:
+        tasks[task_id]["status"] = "error"
+        tasks[task_id]["error"] = str(e)
+    finally:
+        save_state()
+        gc.collect()
+
+
+@app.get("/list_zip/{task_id}")
+async def list_zip_contents(task_id: str):
+    if task_id not in tasks:
+        return {"error": "Task not found"}
+    file_path = tasks[task_id]["file_path"]
+    if not os.path.exists(file_path):
+        return {"error": "File does not exist on server"}
+    if not zipfile.is_zipfile(file_path):
+        return {"error": "This file is not a valid ZIP archive"}
+    try:
+        with zipfile.ZipFile(file_path, "r") as z:
+            file_list = [{"filename": i.filename,
+                          "file_size_mb": round(i.file_size / (1024 * 1024), 2),
+                          "is_dir": i.is_dir()} for i in z.infolist()]
+        return {"task_id": task_id, "total_files": len(file_list), "files": file_list}
+    except Exception as e:
+        return {"error": f"Failed to read ZIP: {str(e)}"}
+
+
+@app.post("/extract_zip/{task_id}")
+async def extract_zip_file(task_id: str, background_tasks: BackgroundTasks):
+    if task_id not in tasks:
+        return {"error": "Task not found"}
+    file_path = tasks[task_id]["file_path"]
+    if not os.path.exists(file_path):
+        return {"error": "File does not exist on server"}
+    if not zipfile.is_zipfile(file_path):
+        return {"error": "This file is not a valid ZIP archive"}
+    extract_folder = os.path.join(DATA_DIR, f"extracted_{task_id}")
+    os.makedirs(extract_folder, exist_ok=True)
+    tasks[task_id]["status"] = "extracting"
+    tasks[task_id]["extract_path"] = extract_folder
+    background_tasks.add_task(process_zip_extraction, task_id, file_path, extract_folder)
+    return {"status": "extraction_started", "task_id": task_id, "target_folder": extract_folder}
+
+
+def process_zip_extraction(task_id: str, zip_path: str, target_dir: str):
+    try:
+        with zipfile.ZipFile(zip_path, "r") as z:
+            z.extractall(path=target_dir)
+        tasks[task_id]["status"] = "extracted"
+    except Exception as e:
+        tasks[task_id]["status"] = "extraction_error"
+        tasks[task_id]["error"] = str(e)
+    finally:
+        save_state()
+
+
+@app.on_event("startup")
+async def startup_event():
+    async def cleanup_old_files():
+        while True:
+            try:
+                now = time.time()
+                for filename in os.listdir(DATA_DIR):
+                    filepath = os.path.join(DATA_DIR, filename)
+                    if os.path.isfile(filepath) and now - os.path.getmtime(filepath) > 86400:
+                        os.remove(filepath)
+                        for tid, tinfo in list(tasks.items()):
+                            if tinfo.get("file_path") == filepath:
+                                del tasks[tid]
+            except Exception as e:
+                print(f"Cleanup error: {e}")
+            await asyncio.sleep(3600)
+
+    asyncio.create_task(cleanup_old_files())
+
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run(app, host="0.0.0.0", port=7860)

requirements.txt

@@ -0,0 +1,6 @@
+fastapi
+uvicorn
+aiohttp
+pydantic
+python-multipart
+urllib3