def parse_diaspora_webfinger(document: str) -> Dict:
"""
Parse Diaspora webfinger which is either in JSON format (new) or XRD (old).
https://diaspora.github.io/diaspora_federation/discovery/webfinger.html
"""
webfinger = {
"hcard_url": None,
}
# noinspection PyBroadException
try:
doc = json.loads(document)
for link in doc["links"]:
if link["rel"] == "http://microformats.org/profile/hcard":
webfinger["hcard_url"] = link["href"]
break
else:
logger.warning("parse_diaspora_webfinger: found JSON webfinger but it has no hcard href")
raise ValueError
except Exception:
try:
xrd = XRD.parse_xrd(document)
webfinger["hcard_url"] = xrd.find_link(rels="http://microformats.org/profile/hcard").href
except (xml.parsers.expat.ExpatError, TypeError):
logger.warning("parse_diaspora_webfinger: found XML webfinger but it fails to parse")
pass
return webfinger
def setUp(self):
self.xrd = XRD.parse_xrd("""<?xml version="1.0" ?>
<XRD xml:id="1234" xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
<Property type="mimetype">text/plain</Property>
<Property type="none"></Property>
<Link template="http://google.com/{uri}">
<Title xml:lang="en_us">this is my rel</Title>
</Link>
</XRD>
""")
def retrieve_diaspora_host_meta(host):
"""
Retrieve a remote Diaspora host-meta document.
:arg host: Host to retrieve from
:returns: ``XRD`` instance
"""
document, code, exception = fetch_document(host=host, path="/.well-known/host-meta")
if exception:
return None
xrd = XRD.parse_xrd(document)
return xrd
def retrieve_diaspora_host_meta(host):
"""
Retrieve a remote Diaspora host-meta document.
:arg host: Host to retrieve from
:returns: ``XRD`` instance
"""
document, code, exception = fetch_document(host=host, path="/.well-known/host-meta")
if exception:
return None
xrd = XRD.parse_xrd(document)
return xrd
def retrieve_diaspora_host_meta(host):
"""
Retrieve a remote Diaspora host-meta document.
Args:
host (str) - Host to retrieve from
Returns:
XRD
"""
document, code, exception = fetch_document(host=host, path="/.well-known/host-meta")
if exception:
return None
xrd = XRD.parse_xrd(document)
return xrd
def retrieve_diaspora_webfinger(handle):
"""
Retrieve a remote Diaspora webfinger document.
:arg handle: Remote handle to retrieve
:returns: ``XRD`` instance
"""
hostmeta = retrieve_diaspora_host_meta(handle.split("@")[1])
if not hostmeta:
return None
url = hostmeta.find_link(rels="lrdd").template.replace("{uri}", quote(handle))
document, code, exception = fetch_document(url)
if exception:
return None
xrd = XRD.parse_xrd(document)
return xrd
def retrieve_diaspora_webfinger(handle):
"""
Retrieve a remote Diaspora webfinger document.
:arg handle: Remote handle to retrieve
:returns: ``XRD`` instance
"""
hostmeta = retrieve_diaspora_host_meta(handle.split("@")[1])
if not hostmeta:
return None
url = hostmeta.find_link(rels="lrdd").template.replace("{uri}", quote(handle))
document, code, exception = fetch_document(url)
if exception:
return None
try:
xrd = XRD.parse_xrd(document)
except xml.parsers.expat.ExpatError:
return None
return xrd
