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|
import json
from typing import Any
import hashlib
import requests
from traceback import print_exc
from app.Item import Item, ItemGUID, ItemMediaContent
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__("JsonApiSourcePlugin", id, params)
self.url: str = get_config(params, "url").strip("/")
self.method: str = get_config_or_default(params, "method", "get").strip().tolower()
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
)
self.show_image_in_description: bool = get_config_or_default(
params, "show_image_in_description", True
)
self.log("initialized")
def absolute_link(self, link: str) -> str:
if link.startswith("/") or link.startswith("#"):
link = self.url + link
return link
def process(self, source_id: str | None, items: list[Item]) -> list[Item]:
if source_id is not None:
raise Exception(
f"{self.log_prefix} can only be scheduled, trying to propagate items from source {source_id}"
)
self.log(f'fetching data from JSON API at URL "{self.url}"')
result_items: list[Item] = []
with requests.session() as session:
fetch_fn = getattr(session, self.method)
api_resp = fetch_fn(self.url, allow_redirects=True)
data = json.loads(api_resp.text)
post_items = eval(self.selector_post, {"data": data})
for post in post_items:
if self.selector_link:
link = eval(
self.selector_link, {"post": post, "data": data}
).strip()
guid = ItemGUID(link, is_perma_link=True)
else:
link = None
guid = None
if self.selector_title:
title = eval(
self.selector_title, {"post": post, "data": data}
).strip()
else:
title = None
if self.selector_description:
description = eval(
self.selector_description, {"post": post, "data": data}
).strip()
else:
description = None
if self.selector_date:
date = eval(
self.selector_date, {"post": post, "data": data}
).strip()
else:
date = None
if self.selector_author:
author = eval(
self.selector_author, {"post": post, "data": data}
).strip()
else:
author = None
if self.selector_image:
try:
image_src = eval(
self.selector_image, {"post": post, "data": data}
).strip()
except Exception:
print_exc()
self.log(
f"failed to extract image source with selector: {self.selector_image}, skipping image"
)
image_src = None
else:
image_src = None
if guid is None:
if title:
guid = ItemGUID(f"aggro__{self.id}__{title}")
elif description:
digest = str(hashlib.sha256(description.encode("utf-8")))
guid = ItemGUID(f"aggro__{self.id}__{digest[:32]}")
else:
raise Exception(
f"{self.log_prefix} both title and description are None"
)
if image_src is not None:
image_src = self.absolute_link(image_src)
image_html = f'<img src="{image_src}"><br><br>'
if description and self.show_image_in_description:
description = image_html + description
elif description is None:
description = image_html
media_content = ItemMediaContent(
url=image_src,
medium="image",
)
else:
media_content = None
if description:
description = description.replace('src="/', f'src="{self.url}/')
description = description.replace('src="#', f'src="{self.url}#')
description = description.replace('href="/', f'href="{self.url}/')
description = description.replace('href="#', f'href="{self.url}#')
item = Item(
title=f"{date} – {title}",
link=link if link else self.url,
description=description,
pub_date=None, # TODO pub_date parsing
author=author,
category=None,
comments=None,
enclosures=[],
guid=guid,
media_content=media_content,
)
result_items.append(item)
self.log(f"fetched {len(result_items)} items from JSON API")
return result_items
|
