mirror of
https://github.com/guezoloic/millesima_projetS6.git
synced 2026-03-28 19:13:42 +00:00
ajout: nouvelle classe pour données et testes
This commit is contained in:
64
main.py
64
main.py
@@ -1,5 +1,5 @@
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from sys import stderr
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from typing import cast
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from typing import Any, cast
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from requests import Response, Session
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from bs4 import BeautifulSoup, Tag
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from json import JSONDecodeError, loads
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@@ -22,6 +22,7 @@ class Scraper:
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self._session: Session = Session()
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# Système de cache pour éviter de solliciter le serveur inutilement
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self._latest_request: tuple[(str, Response | None)] = ("", None)
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self._latest_soup: tuple[(str, BeautifulSoup | None)] = ("", None)
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def _request(self, subdir: str) -> Response:
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"""
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@@ -56,12 +57,12 @@ class Scraper:
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"""
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rq_subdir, rq_response = self._latest_request
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if rq_response is None or subdir != rq_subdir:
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request: Response = self._request(subdir)
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self._latest_request = (subdir, request)
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return request
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if rq_response is not None and subdir == rq_subdir:
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return rq_response
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return rq_response
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request: Response = self._request(subdir)
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self._latest_request = (subdir, request)
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return request
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def getsoup(self, subdir: str = "") -> BeautifulSoup:
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"""
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@@ -76,12 +77,19 @@ class Scraper:
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Raise:
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HTTPError: Si le serveur renvoie un code d'erreur (4xx, 5xx).
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"""
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markup: str = self.getresponse(subdir).text
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return BeautifulSoup(markup, features="html.parser")
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rq_subdir, rq_soup = self._latest_soup
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def getjsondata(
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self, subdir: str = "", id: str = "__NEXT_DATA__"
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) -> dict[str, object]:
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if rq_soup is not None and subdir == rq_subdir:
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return rq_soup
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soup: BeautifulSoup = BeautifulSoup(
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markup=self.getresponse(subdir).text, features="html.parser"
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)
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self._latest_soup = (subdir, soup)
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return soup
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def getjsondata(self, subdir: str = "", id: str = "__NEXT_DATA__") -> ScraperData:
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"""
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Extrait les données JSON contenues dans la balise __NEXT_DATA__ du site.
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Beaucoup de sites modernes (Next.js) stockent leur état initial dans
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@@ -94,7 +102,7 @@ class Scraper:
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Raises:
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HTTPError: Soulevée par `getresponse` si le serveur renvoie un code d'erreur (4xx, 5xx).
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JSONDecodeError: Soulevée par `loads` si le contenu de la balise n'est pas un JSON valide.
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ValueError: Soulevée manuellement si l'une des clés attendues (props, pageProps, etc.)
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ValueError: Soulevée manuellement si l'une des clés attendues (props, pageProps, etc.)
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est absente de la structure JSON.
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Returns:
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@@ -120,13 +128,39 @@ class Scraper:
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# si current_data est bien un dictionnaire et que la clé
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# est bien dedans
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if isinstance(current_data, dict) and key in current_data:
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current_data = current_data[key]
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current_data: object = current_data[key]
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else:
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raise ValueError(f"Clé manquante dans le JSON : {key}")
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if isinstance(current_data, dict):
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return cast(dict[str, object], current_data)
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return ScraperData(data=cast(dict[str, object], current_data))
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except (JSONDecodeError, ValueError) as e:
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print(f"Erreur lors de l'extraction JSON : {e}", file=stderr)
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return {}
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return ScraperData({})
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class ScraperData:
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def __init__(self, data: dict[str, object]) -> None:
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if not data:
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raise ValueError("Données insuffisantes pour créer un ScraperData.")
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self._data: dict[str, object] = data
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def _getattributes(self) -> dict[str, object] | None:
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current_data: object = self._data.get("attributes")
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if isinstance(current_data, dict):
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return cast(dict[str, object], current_data)
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return None
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def appellation(self) -> str | None:
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current_value: dict[str, object] | None = self._getattributes()
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if current_value is not None:
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app_dict: dict[str, object] = cast(
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dict[str, object], current_value.get("appellation")
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)
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if app_dict:
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return cast(str, app_dict.get("value"))
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return None
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def getdata(self) -> dict[str, object]:
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return self._data
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