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