305 lines
9.6 KiB
Python
305 lines
9.6 KiB
Python
__all__ = (
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"ENDPOINT_METHOD",
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"STR_FMT_RE",
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"URL_TYPES",
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"IP_RE",
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"MSG_RE_BYTES",
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"MSG_RE_TEXT",
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"URL",
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"LRU",
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"LRUItem",
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"get_url_args",
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"get_data_fields",
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"route",
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)
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from asyncio import sleep
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from collections import deque
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from inspect import Parameter, signature
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from re import compile as re_compile
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from time import time
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from typing import Any, Optional, TYPE_CHECKING
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from logging import getLogger
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from httpx._urls import URL as _URL
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from pydantic import BaseModel, Field
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from orjson import loads
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from yarl import URL as UR
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from .models import Entity
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if TYPE_CHECKING:
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from .http import SubRouter
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else:
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SubRouter = "SubRouter"
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logger = getLogger()
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ENDPOINT_METHOD = re_compile(r"^(?=((?:get|set|create|delete)\w+))\1")
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STR_FMT_RE = re_compile(r"(?=(\{([^:]+)(?::([^}]+))?\}))\1")
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URL_TYPES = {"str": str, "int": int}
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IP_RE = re_compile(
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r"(?=(?:(?<=[^0-9])|^)((?:[a-z0-9]+\.)*[a-z0-9]+\.[a-z]{2,}(?:[0-9]{2,5})?|(?:[0-9]{,3}\.){3}[0-9]{,3}))\1"
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)
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MSG_RE_BYTES = re_compile(
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rb"(?=((?P<hello>^: hi\n\n$)|^id:\s(?P<id>[0-9]+:\d*?)\ndata:(?P<data>[^$]+)\n\n))\1"
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)
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MSG_RE_TEXT = re_compile(
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r"(?=((?P<hello>^: hi\n\n$)|^id:\s(?P<id>[0-9]+:\d*?)\ndata:(?P<data>[^$]+)\n\n))\1"
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)
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def get_url_args(url):
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kwds = {}
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match = STR_FMT_RE.finditer(url)
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for m in match:
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name = m.group(2)
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if len(m.groups()) >= 4:
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type_ = URL_TYPES[m.group(3)]
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else:
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type_ = str
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kwds[name] = type_
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return kwds
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def get_data_fields(fn, data, args, kwargs) -> dict[str, Any]:
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for param_name, param in signature(fn).parameters.items():
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if param_name == "self":
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continue
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if param.kind == Parameter.POSITIONAL_ONLY:
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data[param_name] = param.annotation(str(args[0]))
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if len(args) > 1:
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args = args[1:]
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else:
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if param_name in fn.__annotations__:
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anno = fn.__annotations__[param_name]
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if isinstance(anno, type):
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type_ = anno
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elif anno._name == "Optional":
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if hasattr(anno.__args__[0], "_name"):
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type_ = str
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else:
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type_ = anno.__args__[0]
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else:
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type_ = fn.__annotations__[param_name]
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else:
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type_ = str
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if param.default is param.empty:
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if param_name not in kwargs and param_name not in data:
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raise TypeError(
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f"Missing required argument {param_name} for {fn.__name__}"
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)
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if param_name in kwargs:
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data[param_name] = type_(kwargs.pop(param_name))
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else:
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if v := kwargs.pop(param_name, param.default):
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data[param_name] = type_(v)
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return data
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def route(method, endpoint) -> Any:
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def wrapped(fn):
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async def sub_wrap(
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self: SubRouter,
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*args,
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base_uri=None,
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content: Optional[bytes] = None,
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data: Optional[dict[str, str]] = None,
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params: Optional[dict[str, str]] = None,
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**kwargs,
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):
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params = params or {}
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data = data or {}
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json = {}
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args = set(args)
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if "headers" in kwargs:
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headers = self._headers | kwargs.pop("headers")
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else:
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headers = self._headers
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ents = set(filter(lambda x: isinstance(x, Entity), args))
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args = tuple(args - ents)
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ent: BaseModel
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for ent in ents:
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json |= loads(
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ent.json(
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exclude_unset=True,
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exclude_none=True,
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exclude={"id"},
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)
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)
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data = get_data_fields(fn, data | kwargs, args, kwargs)
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url_args = get_url_args(endpoint)
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for k, v in url_args.items():
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if k not in kwargs and k not in params and k not in data:
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raise ValueError(f"Missing required argument {k}")
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for d in (kwargs, params, data):
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if _v := d.pop(k, None):
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url_args[k] = v(_v)
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_match_bridge = IP_RE.search(self._bridge_host)
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if not _match_bridge:
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raise ValueError(f"Invalid bridge ip {self._bridge_host}")
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_url_base = f"https://{_match_bridge.group(1)}/" + f"{base_uri}".lstrip("/")
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if url_args:
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new_endpoint = URL(_url_base) / endpoint.format(**url_args)
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else:
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new_endpoint = URL(_url_base) / endpoint
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if headers and headers.get("Accept", "") == "text/event-stream":
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return self._client.stream(
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method,
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new_endpoint,
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content=content,
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data=data,
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params=params,
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headers=headers,
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)
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else:
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kwargs = {}
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if data:
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kwargs["data"] = data
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if content:
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kwargs["content"] = content
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if params:
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kwargs["params"] = params
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if json:
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kwargs["json"] = json
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resp = await self._client.request(
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method, new_endpoint, headers=headers, **kwargs
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)
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if resp.status_code in (200, 207):
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ret_data = resp.json()
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elif resp.status_code == 404:
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return {}
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else:
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while resp.status_code == 429:
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resp = await self._client.request(
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method, new_endpoint, headers=headers, **kwargs
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)
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await sleep(1)
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try:
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ret_data = resp.json()
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except Exception as e:
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logger.exception(
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"Failed to parse response as json <%s> %s",
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resp,
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resp.content,
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e,
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)
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return {}
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ret_objs = []
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if "return" in fn.__annotations__:
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if "data" in ret_data:
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ret_data = ret_data["data"]
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if isinstance(ret_data, list) or isinstance(
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fn.__annotations__["return"], list
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):
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cls = fn.__annotations__["return"]
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if hasattr(cls, "__args__"):
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cls = cls.__args__[0]
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for r in ret_data:
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if "metadata" in r and "name" in r["metadata"]:
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r["metadata"]["name"] = (
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r["metadata"]["name"]
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.replace(" ", "_")
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.replace("-", "_")
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.lower()
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)
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ret_objs.append(cls(**r))
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else:
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return ret_objs
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if "metadata" in ret_data and "name" in ret_data["metadata"]:
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ret_data["metadata"]["name"] = (
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ret_data["metadata"]["name"]
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.replace(" ", "_")
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.replace("-", "_")
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.lower()
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)
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r = fn.__annotations__["return"](**ret_data)
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return ret_data
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return sub_wrap
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return wrapped
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class LRUItem(BaseModel):
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access_time: int = Field(default_factory=lambda: int(time()))
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value: Any = object()
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def __id__(self):
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return id(self.value)
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def __hash__(self):
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return hash(self.value)
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class LRU(set):
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def __init__(self, maxsize, /, *items):
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super().__init__()
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self.maxsize = maxsize
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self.items = deque(maxlen=maxsize)
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for item in items[:maxsize]:
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self.add(LRUItem(value=item))
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def add(self, item):
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if len(self) + 1 > self.maxsize:
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new = self ^ set(
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sorted(self, key=lambda x: x.access_time)[::-1][
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: len(self) + 1 - self.maxsize
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]
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)
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old = self - new
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self -= old
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super().add(LRUItem(value=item))
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def pop(self):
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super().pop().value
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def remove(self, item):
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super().remove(*filter(lambda x: x.value == item, self))
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def extend(self, *items):
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len_new = len(self) + len(items)
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if len_new > self.maxsize:
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new = self ^ set(
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sorted(self, key=lambda x: x.access_time)[::-1][
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: len_new - self.maxsize
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]
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)
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old = self - new
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self -= old
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self |= set([LRUItem(value=item) for item in items])
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class URL(_URL):
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def __truediv__(self, other):
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# Why am i doing this? good question.
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try:
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return URL(str(UR(f"{self}") / other.lstrip("/")))
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except NameError:
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return URL(f"{self}{other.lstrip('/')}")
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def __floordiv__(self, other):
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try:
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return URL(str(UR(f"{self}") / other.lstrip("/")))
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except NameError:
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return URL(f"{self}{other.lstrip('/')}")
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