defmodule Pleroma.Web.Websub do
+ alias Ecto.Changeset
alias Pleroma.Repo
alias Pleroma.Web.Websub.{WebsubServerSubscription, WebsubClientSubscription}
alias Pleroma.Web.OStatus.FeedRepresenter
import Ecto.Query
- def verify(subscription, getter \\ &HTTPoison.get/3 ) do
+ @httpoison Application.get_env(:pleroma, :httpoison)
+
+ def verify(subscription, getter \\ &@httpoison.get/3) do
challenge = Base.encode16(:crypto.strong_rand_bytes(8))
- lease_seconds = NaiveDateTime.diff(subscription.valid_until, subscription.updated_at) |> to_string
+ lease_seconds = NaiveDateTime.diff(subscription.valid_until, subscription.updated_at)
+ lease_seconds = lease_seconds |> to_string
params = %{
"hub.challenge": challenge,
with {:ok, response} <- getter.(url, [], [params: params]),
^challenge <- response.body
do
- changeset = Ecto.Changeset.change(subscription, %{state: "active"})
+ changeset = Changeset.change(subscription, %{state: "active"})
Repo.update(changeset)
else _e ->
- changeset = Ecto.Changeset.change(subscription, %{state: "rejected"})
- {:ok, subscription } = Repo.update(changeset)
+ changeset = Changeset.change(subscription, %{state: "rejected"})
+ {:ok, subscription} = Repo.update(changeset)
{:error, subscription}
end
end
def publish(topic, user, activity) do
+ # TODO: Only send to still valid subscriptions.
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])
+ response = user
+ |> FeedRepresenter.to_simple_form([activity], [user])
|> :xmerl.export_simple(:xmerl_xml)
+ |> to_string
- signature = :crypto.hmac(:sha, sub.secret, response) |> Base.encode16
-
- HTTPoison.post(sub.callback, response, [
- {"Content-Type", "application/atom+xml"},
- {"X-Hub-Signature", "sha1=#{signature}"}
- ])
+ data = %{
+ xml: response,
+ topic: topic,
+ callback: sub.callback,
+ secret: sub.secret
+ }
+ Pleroma.Web.Federator.enqueue(:publish_single_websub, data)
end)
end
+ def sign(secret, doc) do
+ :crypto.hmac(:sha, secret, to_string(doc)) |> Base.encode16 |> String.downcase
+ end
+
def incoming_subscription_request(user, %{"hub.mode" => "subscribe"} = params) do
with {:ok, topic} <- valid_topic(params, user),
{:ok, lease_time} <- lease_time(params),
callback: callback
}
- change = Ecto.Changeset.change(subscription, data)
+ change = Changeset.change(subscription, data)
websub = Repo.insert_or_update!(change)
- change = Ecto.Changeset.change(websub, %{valid_until: NaiveDateTime.add(websub.updated_at, lease_time)})
+ change = Changeset.change(websub, %{valid_until:
+ NaiveDateTime.add(websub.updated_at, lease_time)})
websub = Repo.update!(change)
Pleroma.Web.Federator.enqueue(:verify_websub, websub)
{:ok, websub}
else {:error, reason} ->
+ Logger.debug("Couldn't create subscription.")
+ Logger.debug(inspect(reason))
+
{:error, reason}
end
end
defp get_subscription(topic, callback) do
- Repo.get_by(WebsubServerSubscription, topic: topic, callback: callback) || %WebsubServerSubscription{}
+ Repo.get_by(WebsubServerSubscription, topic: topic, callback: callback) ||
+ %WebsubServerSubscription{}
+ end
+
+ # Temp hack for mastodon.
+ defp lease_time(%{"hub.lease_seconds" => ""}) do
+ {:ok, 60 * 60 * 24 * 3} # three days
end
defp lease_time(%{"hub.lease_seconds" => lease_seconds}) do
defp valid_topic(%{"hub.topic" => topic}, user) do
if topic == OStatus.feed_path(user) do
- {:ok, topic}
+ {:ok, OStatus.feed_path(user)}
else
{:error, "Wrong topic requested, expected #{OStatus.feed_path(user)}, got #{topic}"}
end
end
- def subscribe(user, topic, requester \\ &request_subscription/1) do
+ def subscribe(subscriber, subscribed, requester \\ &request_subscription/1) do
+ topic = subscribed.info["topic"]
# FIXME: Race condition, use transactions
{:ok, subscription} = with subscription when not is_nil(subscription) <- Repo.get_by(WebsubClientSubscription, topic: topic) do
- subscribers = [user.ap_id, subscription.subcribers] |> Enum.uniq
+ subscribers = [subscriber.ap_id | subscription.subscribers] |> Enum.uniq
change = Ecto.Changeset.change(subscription, %{subscribers: subscribers})
Repo.update(change)
else _e ->
subscription = %WebsubClientSubscription{
topic: topic,
- subscribers: [user.ap_id],
+ hub: subscribed.info["hub"],
+ subscribers: [subscriber.ap_id],
state: "requested",
secret: :crypto.strong_rand_bytes(8) |> Base.url_encode64,
- user: user
+ user: subscribed
}
Repo.insert(subscription)
end
requester.(subscription)
end
- def discover(topic, getter \\ &HTTPoison.get/1) do
+ def gather_feed_data(topic, getter \\ &@httpoison.get/1) do
with {:ok, response} <- getter.(topic),
status_code when status_code in 200..299 <- response.status_code,
body <- response.body,
doc <- XML.parse_document(body),
- url when not is_nil(url) <- XML.string_from_xpath(~S{/feed/link[@rel="self"]/@href}, doc),
+ uri when not is_nil(uri) <- XML.string_from_xpath("/feed/author[1]/uri", doc),
hub when not is_nil(hub) <- XML.string_from_xpath(~S{/feed/link[@rel="hub"]/@href}, doc) do
- {:ok, %{url: url, hub: hub}}
+
+ name = XML.string_from_xpath("/feed/author[1]/name", doc)
+ preferredUsername = XML.string_from_xpath("/feed/author[1]/poco:preferredUsername", doc)
+ displayName = XML.string_from_xpath("/feed/author[1]/poco:displayName", doc)
+ avatar = OStatus.make_avatar_object(doc)
+ bio = XML.string_from_xpath("/feed/author[1]/summary", doc)
+
+ {:ok, %{
+ "uri" => uri,
+ "hub" => hub,
+ "nickname" => preferredUsername || name,
+ "name" => displayName || name,
+ "host" => URI.parse(uri).host,
+ "avatar" => avatar,
+ "bio" => bio
+ }}
else e ->
{:error, e}
end
end
- def request_subscription(websub, poster \\ &HTTPoison.post/3, timeout \\ 10_000) do
+ def request_subscription(websub, poster \\ &@httpoison.post/3, timeout \\ 10_000) do
data = [
"hub.mode": "subscribe",
"hub.topic": websub.topic,
change = Ecto.Changeset.change(websub, %{state: "rejected"})
{:ok, websub} = Repo.update(change)
- Logger.debug("Couldn't confirm subscription: #{inspect(websub)}")
- Logger.debug("error: #{inspect(e)}")
+ Logger.debug(fn -> "Couldn't confirm subscription: #{inspect(websub)}" end)
+ Logger.debug(fn -> "error: #{inspect(e)}" end)
{:error, websub}
end
end
+
+ def refresh_subscriptions(delta \\ 60 * 60 * 24) do
+ Logger.debug("Refreshing subscriptions")
+
+ cut_off = NaiveDateTime.add(NaiveDateTime.utc_now, delta)
+
+ query = from sub in WebsubClientSubscription,
+ where: sub.valid_until < ^cut_off
+
+ subs = Repo.all(query)
+
+ Enum.each(subs, fn (sub) ->
+ Pleroma.Web.Federator.enqueue(:request_subscription, sub)
+ end)
+ end
end