add basic federation to websub.

This commit is contained in:
Roger Braun 2017-04-22 12:07:51 +02:00
parent 39dc74f967
commit 77cb260628
2 changed files with 36 additions and 8 deletions

View file

@ -1,15 +1,26 @@
defmodule Pleroma.Web.Websub do defmodule Pleroma.Web.Websub do
alias Pleroma.Repo alias Pleroma.Repo
alias Pleroma.Websub
alias Pleroma.Web.Websub.WebsubServerSubscription
alias Pleroma.Web.OStatus.FeedRepresenter
import Ecto.Query
def verify(subscription, getter \\ &HTTPoison.get/3 ) do def verify(subscription, getter \\ &HTTPoison.get/3 ) do
challenge = Base.encode16(:crypto.strong_rand_bytes(8)) challenge = Base.encode16(:crypto.strong_rand_bytes(8))
lease_seconds = NaiveDateTime.diff(subscription.inserted_at, subscription.valid_until) lease_seconds = NaiveDateTime.diff(subscription.valid_until, subscription.inserted_at) |> to_string
with {:ok, response} <- getter.(subscription.callback, [], [params: %{
params = %{
"hub.challenge": challenge, "hub.challenge": challenge,
"hub.lease_seconds": lease_seconds, "hub.lease_seconds": lease_seconds,
"hub.topic": subscription.topic, "hub.topic": subscription.topic,
"hub.mode": "subscribe" "hub.mode": "subscribe"
}]), }
url = hd(String.split(subscription.callback, "?"))
query = URI.parse(subscription.callback).query || ""
params = Map.merge(params, URI.decode_query(query))
with {:ok, response} <- getter.(url, [], [params: params]),
^challenge <- response.body ^challenge <- response.body
do do
changeset = Ecto.Changeset.change(subscription, %{state: "active"}) changeset = Ecto.Changeset.change(subscription, %{state: "active"})
@ -20,4 +31,21 @@ def verify(subscription, getter \\ &HTTPoison.get/3 ) do
{:error, subscription} {:error, subscription}
end end
end end
def publish(topic, user, activity) do
query = from sub in WebsubServerSubscription,
where: sub.topic == ^topic and sub.state == "active"
subscriptions = Repo.all(query)
Enum.each(subscriptions, fn(sub) ->
response = FeedRepresenter.to_simple_form(user, [activity], [user])
|> :xmerl.export_simple(:xmerl_xml)
signature = :crypto.hmac(:sha, sub.secret, response) |> Base.encode16
HTTPoison.post(sub.callback, response, [
{"Content-Type", "application/atom+xml"},
{"X-Hub-Signature", "sha1=#{signature}"}
])
end)
end
end end

View file

@ -15,7 +15,7 @@ test "a verification of a request that is accepted" do
"hub.mode": "subscribe" "hub.mode": "subscribe"
} = Keyword.get(options, :params) } = Keyword.get(options, :params)
assert is_number(seconds) assert String.to_integer(seconds) > 0
{:ok, %HTTPoison.Response{ {:ok, %HTTPoison.Response{
status_code: 200, status_code: 200,