cmdop-proxy 0.1.0

Provider-neutral proxy leases for Python applications.

cmdop-proxy

cmdop-proxy gives Python applications one provider-neutral contract for acquiring and using bounded proxy leases. It is a client library, not a proxy server and not a scraping framework.

The package intentionally separates two responsibilities:

• a broker selects and leases an endpoint;
• the application sends traffic directly through that endpoint with its native HTTP client.

Provider management APIs and account keys do not belong in this package.

Install

pip install cmdop-proxy

SOCKS support in HTTPX is optional:

pip install "cmdop-proxy[socks]"

Static/offline use

import asyncio
from datetime import timedelta

from cmdop_proxy import (
    AcquireRequest,
    IdentityMode,
    ProxyEndpoint,
    ProxyProtocol,
    StaticBroker,
    create_async_client,
)


async def main() -> None:
    broker = StaticBroker(
        pools={
            "parser": [
                ProxyEndpoint(
                    endpoint_id="local-1",
                    host="127.0.0.1",
                    port=8080,
                    protocol=ProxyProtocol.HTTP,
                    username="user",
                    password="secret",
                )
            ]
        }
    )
    lease = await broker.acquire(
        AcquireRequest(
            pool="parser",
            purpose="source-acquisition",
            target="example",
            protocols=(ProxyProtocol.HTTP,),
            identity_mode=IdentityMode.FIXED,
            affinity="account-primary",
            ttl=timedelta(minutes=15),
        ),
        idempotency_key="run-001",
    )

    async with create_async_client(lease, timeout=30) as client:
        response = await client.get("https://example.com/")
        response.raise_for_status()


asyncio.run(main())

StaticBroker is deterministic, process-local and network-free. It is useful for tests, local deployments and as the reference semantics for remote broker contract tests. It does not persist leases across process restarts.

Security properties

• Credentials never appear in endpoint or lease repr output.
• Proxy URLs percent-encode user information.
• The library does not set HTTP_PROXY, HTTPS_PROXY or any other global environment variable.
• Observations are typed categories and cannot carry response bodies, cookies, headers or arbitrary error messages.
• A renewal preserves identity or fails; it never silently changes endpoint.

Applications should keep leases in memory and persist only the lease ID when a remote broker supports lease recovery.

Cloudflare control plane

CloudflareBroker implements the same async contract over the versioned proxy.sdkrouter.com API. The workload receives only its broker token; provider management keys stay in Worker secrets.

from cmdop_proxy import CloudflareBroker

async with CloudflareBroker(
    base_url="https://proxy.sdkrouter.com",
    token=workload_token,
) as broker:
    lease = await broker.acquire(request, idempotency_key="parser-run-001")

The broker token is excluded from repr, remote error messages are mapped to stable typed exceptions, and arbitrary response bodies are never copied into exceptions.