C2c Download Manager [better] ⏰

Trigger from anywhere with an HTTP call – no persistent server needed. | Aspect | C2C Download Manager | Traditional DM | |--------|---------------------|----------------| | Data path | Remote → Remote | Remote → Local | | Controller bandwidth | Near zero | Full file size | | Controller uptime | Not required | Must stay on | | Resume across reboots | Yes | Limited | | Best for | Server migrations, cloud backups, seedboxes | Personal downloads |

@app.get("/transfer/job_id") async def get_status(job_id: str): return jobs.get(job_id, "status": "not_found") If you want to use C2C downloading today , these tools already implement the concept: c2c download manager

# Stream to target (simplified PUT example) async with session.put(job.target_url, data=resp.content) as target_resp: if target_resp.status in (200, 201): jobs[job_id] = "status": "complete", "size": total else: jobs[job_id] = "status": "failed", "error": f"Target error target_resp.status" except Exception as e: jobs[job_id] = "status": "failed", "error": str(e) @app.post("/transfer") async def start_transfer(job: TransferJob, background: BackgroundTasks): job_id = str(uuid.uuid4()) jobs[job_id] = "status": "starting" background.add_task(c2c_transfer, job_id, job) return "job_id": job_id, "status": "accepted" Trigger from anywhere with an HTTP call –

async def c2c_transfer(job_id: str, job: TransferJob): """Transfer directly from source URL to target URL""" try: async with aiohttp.ClientSession() as session: # Stream from source async with session.get(job.source_url, headers=job.headers) as resp: total = int(resp.headers.get('content-length', 0)) written = 0 Unlike a standard download manager (which pulls from

: Use rclone – it's the most mature C2C system available. For a custom solution, the FastAPI snippet above gives you a starting point to build your own orchestrator.

Unlike a standard download manager (which pulls from a single URL) or BitTorrent (which pulls from many peers), a directly transfers files from one remote content source to another without ever storing the file locally on the initiating device. Core Concept C2C = Server A → Server B (Initiated from Device C)

class TransferJob(BaseModel): source_url: str target_url: str chunk_size: int = 8192 * 1024 # 8MB overwrite: bool = False headers: Optional[dict] = None