301 lines
8.7 KiB
Python
301 lines
8.7 KiB
Python
from pathlib import Path
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from core.security import require_authenticated_user
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from fastapi import APIRouter, Depends, HTTPException, Request, status
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from models.example import AddonExampleCreateInput
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from models.proxy import ProxyCreateInput, ProxyUpdateInput
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from pymongo.errors import DuplicateKeyError
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from repositories.examples import (
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create_custom_example,
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delete_custom_example,
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list_custom_examples,
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)
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from repositories.proxy import (
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create_proxy,
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delete_proxy,
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get_proxy_by_port,
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update_proxy,
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update_proxy_runtime,
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)
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from repositories.proxy import (
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list_proxies as list_proxy_documents,
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)
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from services.mitmproxy.examples import BUILTIN_EXAMPLES
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from services.mitmproxy.health import check_proxy
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from services.mitmproxy.manager import MitmdumpError, manager
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from services.mitmproxy.options import (
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MitmOptionError,
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load_options,
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public_options,
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validate_options,
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)
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from services.mitmproxy.validator import ProxyCodeValidationError, validate_proxy_code
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SUPPORTED_MODES = {
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"regular",
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"local",
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"wireguard",
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"reverse",
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"transparent",
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"tun",
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"upstream",
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"socks5",
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"dns",
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}
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SUPPORTED_PROTOCOLS = {
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"http",
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"https",
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"tcp",
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"tls",
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"udp",
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"dtls",
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"dns",
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"http3",
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"quic",
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}
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router = APIRouter(
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prefix="/proxy",
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tags=["Proxy"],
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dependencies=[Depends(require_authenticated_user)],
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)
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async def _validate_code_or_raise(code: str) -> None:
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try:
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await validate_proxy_code(code)
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except ProxyCodeValidationError as error:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
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detail=error.to_http_detail(),
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) from error
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def validate_mode(mode: str) -> None:
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if mode not in SUPPORTED_MODES:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
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detail=f"Unsupported proxy mode: {mode}",
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)
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def validate_mode_spec(mode_spec: str | None) -> None:
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if mode_spec is None:
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return
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mode = mode_spec.split(":", 1)[0].split("@", 1)[0]
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validate_mode(mode)
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def validate_protocol(protocol: str) -> None:
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if protocol not in SUPPORTED_PROTOCOLS:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
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detail=f"Unsupported reverse proxy protocol: {protocol}",
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)
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async def validate_mitm_options(options: dict[str, object]) -> None:
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try:
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await validate_options(options)
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except MitmOptionError as error:
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raise HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
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detail=str(error),
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) from error
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async def get_proxy_or_404(proxy_port: int):
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proxy = await get_proxy_by_port(proxy_port)
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if proxy is None:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail="Proxy not found",
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)
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return proxy
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@router.get("")
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async def list_proxies_handler():
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return await list_proxy_documents()
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@router.get("/services")
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async def list_services(request: Request):
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return getattr(request.app.state, "services", [])
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@router.get("/mitmproxy/options")
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async def list_mitmproxy_options():
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return public_options(await load_options())
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@router.get("/mitmproxy/examples")
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async def list_mitmproxy_examples():
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return [*BUILTIN_EXAMPLES, *await list_custom_examples()]
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@router.post("/mitmproxy/examples", status_code=status.HTTP_201_CREATED)
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async def create_mitmproxy_example(payload: AddonExampleCreateInput):
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await _validate_code_or_raise(payload.code)
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try:
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return await create_custom_example(payload)
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except DuplicateKeyError as error:
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raise HTTPException(
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status_code=status.HTTP_409_CONFLICT,
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detail=f"Example already exists: {payload.id}",
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) from error
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@router.delete(
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"/mitmproxy/examples/{example_id}",
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status_code=status.HTTP_204_NO_CONTENT,
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)
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async def delete_mitmproxy_example(example_id: str):
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if any(example.id == example_id for example in BUILTIN_EXAMPLES):
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raise HTTPException(
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status_code=status.HTTP_409_CONFLICT,
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detail="Built-in examples cannot be deleted",
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)
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deleted = await delete_custom_example(example_id)
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if not deleted:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail="Example not found",
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)
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@router.get("/{proxy_port}")
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async def get_proxy(proxy_port: int):
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return await get_proxy_or_404(proxy_port)
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@router.post("", status_code=status.HTTP_201_CREATED)
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async def create_proxy_handler(payload: ProxyCreateInput):
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existing_proxy = await get_proxy_by_port(payload.proxy_port)
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if existing_proxy is not None:
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raise HTTPException(
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status_code=status.HTTP_409_CONFLICT,
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detail=f"Proxy already exists on port {payload.proxy_port}",
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)
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await _validate_code_or_raise(payload.code)
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validate_mode(payload.mode)
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validate_mode_spec(payload.mode_spec)
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validate_protocol(payload.protocol)
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await validate_mitm_options(payload.mitm_options)
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return await create_proxy(payload)
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@router.put("/{proxy_port}")
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async def edit_proxy(proxy_port: int, payload: ProxyUpdateInput):
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if payload.code is not None:
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await _validate_code_or_raise(payload.code)
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if payload.mode is not None:
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validate_mode(payload.mode)
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if "mode_spec" in payload.model_fields_set:
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validate_mode_spec(payload.mode_spec)
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if payload.protocol is not None:
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validate_protocol(payload.protocol)
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if payload.mitm_options is not None:
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await validate_mitm_options(payload.mitm_options)
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updated_proxy = await update_proxy(proxy_port, payload)
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if updated_proxy is None:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail="Proxy not found",
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)
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return updated_proxy
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@router.post("/{proxy_port}/start")
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async def start_proxy(proxy_port: int):
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proxy = await get_proxy_or_404(proxy_port)
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try:
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runtime = await manager.start(proxy)
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except MitmdumpError as error:
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updated = await update_proxy_runtime(
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proxy_port,
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{"status": "error", "last_error": str(error)},
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)
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return updated or proxy
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return await update_proxy_runtime(proxy_port, runtime)
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@router.post("/{proxy_port}/stop")
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async def stop_proxy(proxy_port: int):
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proxy = await get_proxy_or_404(proxy_port)
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runtime = await manager.stop(proxy)
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return await update_proxy_runtime(proxy_port, runtime)
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@router.post("/{proxy_port}/restart")
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async def restart_proxy(proxy_port: int):
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proxy = await get_proxy_or_404(proxy_port)
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stopped = await manager.stop(proxy)
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proxy = await update_proxy_runtime(proxy_port, stopped) or proxy
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try:
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runtime = await manager.start(proxy)
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except MitmdumpError as error:
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updated = await update_proxy_runtime(
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proxy_port,
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{"status": "error", "last_error": str(error)},
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)
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return updated or proxy
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return await update_proxy_runtime(proxy_port, runtime)
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@router.get("/{proxy_port}/status")
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async def proxy_status(proxy_port: int):
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proxy = await get_proxy_or_404(proxy_port)
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runtime_status = await manager.status(proxy)
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if runtime_status != proxy.status:
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values: dict[str, object] = {"status": runtime_status}
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if runtime_status != "running":
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values["pid"] = None
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proxy = await update_proxy_runtime(proxy_port, values) or proxy
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return {"proxy_port": proxy.proxy_port, "status": runtime_status, "pid": proxy.pid}
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@router.get("/{proxy_port}/health")
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async def proxy_health(proxy_port: int):
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proxy = await get_proxy_or_404(proxy_port)
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return await check_proxy(proxy)
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@router.get("/{proxy_port}/logs")
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async def proxy_logs(proxy_port: int):
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proxy = await get_proxy_or_404(proxy_port)
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if proxy.log_path is None:
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return {"proxy_port": proxy.proxy_port, "log": ""}
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path = Path(proxy.log_path)
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if not path.is_file():
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return {"proxy_port": proxy.proxy_port, "log": ""}
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return {
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"proxy_port": proxy.proxy_port,
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"log": path.read_text(encoding="utf-8", errors="replace")[-8000:],
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}
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@router.delete("/{proxy_port}", status_code=status.HTTP_204_NO_CONTENT)
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async def remove_proxy(proxy_port: int):
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proxy = await get_proxy_by_port(proxy_port)
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if proxy is None:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail="Proxy not found",
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)
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await manager.stop(proxy)
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deleted = await delete_proxy(proxy_port)
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if not deleted:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail="Proxy not found",
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)
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