mirror of
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61 lines
1.9 KiB
Python
61 lines
1.9 KiB
Python
"""Development helpers for the frontend."""
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import aiohttp
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from aiohttp import hdrs, web
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from homeassistant.components.http.view import HomeAssistantView
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.helpers import aiohttp_client
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@callback
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def async_setup_frontend_dev(hass: HomeAssistant) -> None:
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"""Set up frontend dev views."""
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hass.http.register_view( # type: ignore
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FrontendDevView(
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"http://localhost:8000", aiohttp_client.async_get_clientsession(hass)
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)
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)
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FILTER_RESPONSE_HEADERS = {hdrs.CONTENT_LENGTH, hdrs.CONTENT_ENCODING}
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class FrontendDevView(HomeAssistantView):
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"""Frontend dev view."""
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name = "_dev:frontend"
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url = "/_dev_frontend/{path:.*}"
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requires_auth = False
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extra_urls = ["/__web-dev-server__/{path:.*}"]
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def __init__(self, forward_base: str, websession: aiohttp.ClientSession):
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"""Initialize a Hass.io ingress view."""
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self._forward_base = forward_base
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self._websession = websession
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async def get(self, request: web.Request, path: str) -> web.Response:
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"""Frontend routing."""
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# To deal with: import * as commonjsHelpers from '/__web-dev-server__/rollup/commonjsHelpers.js
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if request.path.startswith("/__web-dev-server__/"):
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path = f"__web-dev-server__/{path}"
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url = f"{self._forward_base}/{path}"
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if request.query_string:
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url += f"?{request.query_string}"
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async with self._websession.get(
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url,
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headers=request.headers,
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allow_redirects=False,
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) as result:
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return web.Response(
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headers={
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hdr: val
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for hdr, val in result.headers.items()
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if hdr not in FILTER_RESPONSE_HEADERS
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},
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status=result.status,
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body=await result.read(),
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)
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