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118 lines
3.4 KiB
Python
118 lines
3.4 KiB
Python
from __future__ import annotations
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from dataclasses import dataclass
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from enum import Enum
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from functools import partial
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import logging
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import re
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from typing import Dict, List, Optional
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import urllib.parse as url
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from tinytinypy import Connection
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from tinytinypy.main import Headline
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logger = logging.getLogger(__name__)
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@dataclass
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class TtRssConnectionParameter:
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host: str
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username: str
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password: str
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proto: str = "https"
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endpoint: str = "/api/"
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TT_RSS_CONNECTION: Connection = None
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HeadlineList = List[Headline]
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def _build_connection(params: TtRssConnectionParameter) -> Connection:
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global TT_RSS_CONNECTION
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if TT_RSS_CONNECTION is None:
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TT_RSS_CONNECTION = Connection(
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proto=params.proto, host=params.host, endpoint=params.endpoint
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)
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if not TT_RSS_CONNECTION.isLoggedIn():
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TT_RSS_CONNECTION.login(username=params.username, password=params.password)
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return TT_RSS_CONNECTION
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def get_headlines(params: TtRssConnectionParameter, **kwargs) -> HeadlineList:
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conn = _build_connection(params)
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if "limit" in kwargs:
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kwargs["limit"] = int(kwargs["limit"])
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if logger.isEnabledFor(logging.DEBUG):
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logger.debug(f"Request headlines from tt-rss: {kwargs!r}")
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headlines = conn.getHeadlines(**kwargs)
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logger.debug(f"Got {len(headlines)} headlines from tt-rss using: {kwargs!r}")
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return headlines
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class TtRssUriKind(Enum):
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ALL = ("all", lambda id: get_headlines)
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CATEGORY = ("category", lambda id: partial(get_headlines, cat_id=id))
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FEED = ("feed", lambda id: partial(get_headlines, feed_id=id))
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@property
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def path_name(self) -> str:
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return self.value[0]
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@property
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def request(self):
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return self.value[1]
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@classmethod
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def from_path_name(cls, name: str) -> "TtRssUriKind":
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for e in cls:
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if e.path_name.lower() == name.lower():
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return e
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raise KeyError()
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@dataclass
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class TtRssUri:
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supported_kinds = "|".join(re.escape(n.path_name.lower()) for n in TtRssUriKind)
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scheme = "tt-rss"
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path_re = re.compile(
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rf"^/((?P<all>all)|(?P<kind>{supported_kinds})/(?P<id>-?\d+))/?$"
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)
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kind: TtRssUriKind
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id: Optional[str]
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options: Dict[str, str]
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@classmethod
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def uri_suitable(cls, uri: str) -> bool:
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parts = url.urlparse(uri)
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return parts.scheme == cls.scheme
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@classmethod
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def from_str_uri(cls, uri: str) -> "TtRssUri":
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parts = url.urlparse(uri, scheme=cls.scheme)
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if parts.scheme != cls.scheme:
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raise Exception(f"Invalid scheme for tt-rss uri: {parts.scheme!r}")
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if (parts.netloc, parts.params, parts.fragment) != ("", "", ""):
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raise Exception(f"tt-rss uris do not accept netloc, params and fragments")
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m = cls.path_re.search(parts.path)
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if m is None:
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raise Exception(f"Could not parse path of tt-rss uri: {parts.path!r}")
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return TtRssUri(
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kind=TtRssUriKind.ALL
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if m.group("all")
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else TtRssUriKind.from_path_name(m.group("kind")),
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id=m.group("id"),
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options={
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single[0]: single[1]
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for single in (single.split("=") for single in parts.query.split("&"))
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}
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if parts.query
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else {},
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)
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def request(self, params: TtRssConnectionParameter, **kwargs) -> HeadlineList:
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return self.kind.request(self.id)(params, **self.options, **kwargs)
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