36 lines
1.1 KiB
Python
36 lines
1.1 KiB
Python
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from typing import Union
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from urllib.parse import urlparse
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from django.contrib.sites.models import Site
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from django.http import HttpResponse
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from django.urls import resolve, Resolver404
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from micropub.views import error
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from .models import Entry
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def from_url(url: str) -> Union[Entry, HttpResponse]:
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domain = Site.objects.get_current().domain
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if not url:
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return error.bad_req('url parameter required')
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if '//' not in url:
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url = '//' + url
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parts = urlparse(url, scheme='https')
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if parts.scheme not in ('http', 'https') or parts.netloc != domain:
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return error.bad_req('url does not point to this site')
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try:
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match = resolve(parts.path)
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except Resolver404:
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return error.bad_req('url does not point to a valid page on this site')
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if match.view_name != 'entries:entry':
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return error.bad_req('url does not point to an entry on this site')
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try:
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entry = Entry.objects.get(pk=match.kwargs['id'])
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except Entry.DoesNotExist:
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return error.bad_req('url does not point to an existing entry')
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return entry
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