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from src import IRCBot, utils
LD_TYPE = ("application/ld+json; "
"profile=\"https://www.w3.org/ns/activitystreams\"")
JRD_TYPE = "application/jrd+json"
ACTIVITY_TYPE = "application/activity+json"
USERAGENT = "BitBot (%s) Fediverse" % IRCBot.VERSION
def split_username(s):
if s[0] == "@":
s = s[1:]
username, _, instance = s.partition("@")
if username and instance:
return username, instance
return None, None
def activity_request(url, data=None, method="GET", type=ACTIVITY_TYPE):
content_type = None
headers = {}
if method == "POST":
content_type = type
else:
headers = {"Accept": type}
request = utils.http.Request(url, headers=headers, useragent=USERAGENT,
content_type=content_type, data=data, json=True)
return utils.http.request(request).data
HOSTMETA_TEMPLATE = "https://%s/.well-known/host-meta"
WEBFINGER_TEMPLATE = "https://%s/.well-known/webfinger?resource={uri}"
def find_actor(username, instance):
hostmeta = HOSTMETA_TEMPLATE % instance
hostmeta_request = utils.http.Request(HOSTMETA_TEMPLATE % instance,
useragent=USERAGENT, parse=True, check_content_type=False)
hostmeta = utils.http.request(hostmeta_request)
webfinger_url = None
for item in hostmeta.data.find_all("link"):
if item["rel"] and item["rel"][0] == "lrdd":
webfinger_url = item["template"]
break
if not webfinger_url:
webfinger_url = WEBFINGER_TEMPLATE % instance
webfinger_url = webfinger_url.replace("{uri}",
"acct:%s@%s" % (username, instance), 1)
webfinger = activity_request(webfinger_url, type=JRD_TYPE)
actor_url = None
for link in webfinger["links"]:
if link["type"] == ACTIVITY_TYPE:
return link["href"]
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