lemoncurry/wellknowns/views/host_meta.py

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from django.conf import settings
from django.http import HttpResponse, JsonResponse
from django.urls import reverse
from lemoncurry.utils import load_package_json, origin
from urllib.parse import urljoin
from xrd import XRD, Attribute, Element, Link
def add_links(request, dest):
base = origin(request)
pkg = load_package_json()
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webfinger = reverse("wellknowns:webfinger") + "?resource={uri}"
license = "https://creativecommons.org/licenses/by-sa/4.0/"
links = (
Link(
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href=urljoin(base, reverse("entries:atom")),
rel="alternate",
type_="application/atom+xml",
),
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Link(
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href=urljoin(base, reverse("entries:rss")),
rel="alternate",
type_="application/rss+xml",
),
Link(
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href=urljoin(base, reverse("lemonauth:indie")), rel="authorization_endpoint"
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),
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Link(href=pkg["repository"], type_="text/html", rel="code-repository"),
Link(href=settings.PUSH_HUB, rel="hub"),
Link(href=license, type_="text/html", rel="license"),
Link(href=license + "rdf", type_="application/rdf+xml", rel="license"),
Link(
template=urljoin(base, webfinger),
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type_="application/json",
rel="lrdd",
),
Link(
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href=urljoin(base, reverse("wellknowns:manifest")),
rel="manifest",
type_="application/json",
),
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Link(href=urljoin(base, reverse("micropub:micropub")), rel="micropub"),
Link(href=urljoin(base, reverse("lemonauth:token")), rel="token_endpoint"),
Link(href="https://openid.indieauth.com/openid", rel="openid.server"),
Link(href=base, rel="openid.delegate"),
)
dest.extend(links)
def host_meta(request):
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h = XRD(subject="https://" + request.site.domain)
add_links(request, h.links)
return h
def host_meta_xml(request):
return HttpResponse(
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host_meta(request).to_xml().toprettyxml(indent=" ", encoding="utf-8"),
content_type="application/xrd+xml",
)
# The XRD package doesn't actually generate correct JSON, so we have to do it
# ourselves instead.
def host_meta_json(request):
meta = host_meta(request)
links = []
for l in meta.links:
link = {
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"rel": l.rel,
"type": l.type,
"href": l.href,
"template": l.template,
}
for k in list(link.keys()):
if not link[k]:
del link[k]
links.append(link)
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meta = {"links": links, "subject": meta.subject}
return JsonResponse(meta)