mirror of
https://akkoma.dev/AkkomaGang/akkoma.git
synced 2024-11-25 15:39:19 +00:00
Prevent spoofing webfinger
This commit is contained in:
parent
4457928e32
commit
a953b1d927
|
@ -217,10 +217,28 @@ defmodule Pleroma.Web.WebFinger do
|
|||
_ ->
|
||||
{:error, {:content_type, nil}}
|
||||
end
|
||||
|> case do
|
||||
{:ok, data} -> validate_webfinger(address, data)
|
||||
error -> error
|
||||
end
|
||||
|
||||
else
|
||||
error ->
|
||||
Logger.debug("Couldn't finger #{account}: #{inspect(error)}")
|
||||
error
|
||||
end
|
||||
end
|
||||
|
||||
defp validate_webfinger(url, %{"subject" => "acct:" <> acct} = data) do
|
||||
with %URI{host: request_host} <- URI.parse(url),
|
||||
[_name, acct_host] <- String.split(acct, "@"),
|
||||
{_, true} <- {:hosts_match, acct_host == request_host} do
|
||||
{:ok, data}
|
||||
else
|
||||
_ -> {:error, {:webfinger_invalid, url, data}}
|
||||
end
|
||||
end
|
||||
|
||||
defp validate_webfinger(url, data), do: {:error, {:webfinger_invalid, url, data}}
|
||||
|
||||
end
|
||||
|
|
3
test/fixtures/tesla_mock/bad.com_host_meta
vendored
Normal file
3
test/fixtures/tesla_mock/bad.com_host_meta
vendored
Normal file
|
@ -0,0 +1,3 @@
|
|||
<XRD xmlns="http://docs.oasis-open.org/ns/xri/xrd-1.0">
|
||||
<Link rel="lrdd" template="https://bad.com/.well-known/webfinger?resource={uri}" type="application/xrd+xml" />
|
||||
</XRD>
|
28
test/fixtures/tesla_mock/webfinger_spoof.json
vendored
Normal file
28
test/fixtures/tesla_mock/webfinger_spoof.json
vendored
Normal file
|
@ -0,0 +1,28 @@
|
|||
{
|
||||
"aliases": [
|
||||
"https://bad.com/users/meanie",
|
||||
"https://anotherbad.social/users/meanie"
|
||||
],
|
||||
"links": [
|
||||
{
|
||||
"href": "https://bad.com/users/meanie",
|
||||
"rel": "http://webfinger.net/rel/profile-page",
|
||||
"type": "text/html"
|
||||
},
|
||||
{
|
||||
"href": "https://bad.com/users/meanie",
|
||||
"rel": "self",
|
||||
"type": "application/activity+json"
|
||||
},
|
||||
{
|
||||
"href": "https://bad.com/users/meanie",
|
||||
"rel": "self",
|
||||
"type": "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""
|
||||
},
|
||||
{
|
||||
"rel": "http://ostatus.org/schema/1.0/subscribe",
|
||||
"template": "https://bad.com/ostatus_subscribe?acct={uri}"
|
||||
}
|
||||
],
|
||||
"subject": "acct:oopsie@notwhereitshouldbe.org"
|
||||
}
|
|
@ -76,15 +76,6 @@ defmodule Pleroma.Web.WebFingerTest do
|
|||
{:ok, _data} = WebFinger.finger(user)
|
||||
end
|
||||
|
||||
test "returns the ActivityPub actor URI and subscribe address for an ActivityPub user with the ld+json mimetype" do
|
||||
user = "kaniini@gerzilla.de"
|
||||
|
||||
{:ok, data} = WebFinger.finger(user)
|
||||
|
||||
assert data["ap_id"] == "https://gerzilla.de/channel/kaniini"
|
||||
assert data["subscribe_address"] == "https://gerzilla.de/follow?f=&url={uri}"
|
||||
end
|
||||
|
||||
test "it work for AP-only user" do
|
||||
user = "kpherox@mstdn.jp"
|
||||
|
||||
|
@ -99,12 +90,6 @@ defmodule Pleroma.Web.WebFingerTest do
|
|||
assert data["subscribe_address"] == "https://mstdn.jp/authorize_interaction?acct={uri}"
|
||||
end
|
||||
|
||||
test "it works for friendica" do
|
||||
user = "lain@squeet.me"
|
||||
|
||||
{:ok, _data} = WebFinger.finger(user)
|
||||
end
|
||||
|
||||
test "it gets the xrd endpoint" do
|
||||
{:ok, template} = WebFinger.find_lrdd_template("social.heldscal.la")
|
||||
|
||||
|
@ -180,5 +165,29 @@ defmodule Pleroma.Web.WebFingerTest do
|
|||
|
||||
{:ok, _data} = WebFinger.finger("pekorino@pawoo.net")
|
||||
end
|
||||
|
||||
test "prevents spoofing" do
|
||||
Tesla.Mock.mock(fn
|
||||
%{
|
||||
url: "https://bad.com/.well-known/webfinger?resource=acct:meanie@bad.com"
|
||||
} ->
|
||||
{:ok,
|
||||
%Tesla.Env{
|
||||
status: 200,
|
||||
body: File.read!("test/fixtures/tesla_mock/webfinger_spoof.json"),
|
||||
headers: [{"content-type", "application/jrd+json"}]
|
||||
}}
|
||||
|
||||
%{url: "https://bad.com/.well-known/host-meta"} ->
|
||||
{:ok,
|
||||
%Tesla.Env{
|
||||
status: 200,
|
||||
body: File.read!("test/fixtures/tesla_mock/bad.com_host_meta")
|
||||
}}
|
||||
end)
|
||||
|
||||
{:error, _data} = WebFinger.finger("meanie@bad.com")
|
||||
end
|
||||
|
||||
end
|
||||
end
|
||||
|
|
Loading…
Reference in a new issue