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|
from bs4 import BeautifulSoup
import time
from datetime import datetime, timezone
from typing import Any
import re
import requests
from app.Item import Item, ItemEnclosure, ItemGUID
from app.PluginInterface import Params, PluginInterface
from app.utils import ItemDict, get_config, get_config_or_default
class Plugin(PluginInterface):
def __init__(self, id: str, params: Params) -> None:
super().__init__(id, params)
self.url: str = get_config(params, "url").strip("/")
self.selector_post: str = get_config(params, "selector_post")
self.selector_title: str | None = get_config_or_default(
params, "selector_title", None
)
self.selector_date: str | None = get_config_or_default(
params, "selector_date", None
)
self.selector_link: str | None = get_config_or_default(
params, "selector_link", None
)
self.selector_description: str | None = get_config_or_default(
params, "selector_description", None
)
self.selector_author: str | None = get_config_or_default(
params, "selector_author", None
)
self.selector_image: str | None = get_config_or_default(
params, "selector_image", None
)
print(f"[ScraperSourcePlugin#{self.id}] initialized")
def absolute_link(self, link: str) -> str:
if link.startswith("/"):
link = self.url + link
return link
def process(self, source_id: str | None, items: list[Item]) -> list[Item]:
print(f"[ScraperSourcePlugin#{self.id}] process called")
result_items: list[Item] = []
with requests.session() as session:
page_resp = session.get(self.url, allow_redirects=True)
page_elem = BeautifulSoup(page_resp.text, "html.parser")
post_elems = eval(self.selector_post, {"page": page_elem})
for post_elem in post_elems:
if self.selector_link:
link_elem = eval(
self.selector_link, {"page": page_elem, "post": post_elem}
)[0]
detail_page_url = self.absolute_link(link_elem["href"])
else:
detail_page_url = None
if detail_page_url:
detail_page_resp = session.get(
detail_page_url, allow_redirects=True
)
detail_page_elem = BeautifulSoup(
detail_page_resp.text, "html.parser"
)
guid = ItemGUID(detail_page_url, is_perma_link=True)
else:
detail_page_elem = None
guid = None
if self.selector_title:
title_elem = eval(
self.selector_title,
{
"page": page_elem,
"post": post_elem,
"detail_page": detail_page_elem,
},
)[0]
title = title_elem.get_text().strip()
else:
title = None
if self.selector_description:
description_elem = eval(
self.selector_description,
{
"page": page_elem,
"post": post_elem,
"detail_page": detail_page_elem,
},
)[0]
description = str(description_elem).strip()
else:
description = None
if self.selector_date:
date_elem = eval(
self.selector_date,
{
"page": page_elem,
"post": post_elem,
"detail_page": detail_page_elem,
},
)[0]
date = date_elem.get_text().strip()
else:
date = None
if self.selector_author:
author_elem = eval(
self.selector_author,
{
"page": page_elem,
"post": post_elem,
"detail_page": detail_page_elem,
},
)[0]
author = author_elem.get_text().strip()
else:
author = None
if self.selector_image:
image_elem = eval(
self.selector_image,
{
"page": page_elem,
"post": post_elem,
"detail_page": detail_page_elem,
},
)[0]
if image_elem.has_attr("src"):
image_src = image_elem["src"]
elif (
image_elem.has_attr("style")
and "background-image:" in image_elem["style"]
):
match = re.match(
r"background-image:\s*url\((?P<url>.*?)\)",
image_elem["style"],
)
if match is None:
raise Exception(
f"[ScraperSourcePlugin#{self.id}] weird regex result when looking for background-image"
)
image_src = match.group("url")
else:
image_src = None
else:
image_src = None
if guid is None:
guid = ItemGUID(f"aggro__{self.id}__{title}")
if image_src is not None:
image_src = self.absolute_link(image_src)
image_html = f'<br><br><img src="{image_src}">'
if description:
description += image_html
else:
description = image_html
if description:
description = description.replace('src="/', f'src="{self.url}/')
description = description.replace('href="/', f'href="{self.url}/')
item = Item(
title=f"{date} – {title}",
link=detail_page_url,
description=description,
pub_date=datetime.now(),
author=author,
category=None,
comments=None,
enclosures=[],
guid=guid,
)
result_items.append(item)
print(
f"[ScraperSourcePlugin#{self.id}] process returns items, n={len(result_items)}"
)
return result_items
|
