X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fpleroma%2Fweb%2Fwebsub%2Fwebsub.ex;h=47a01849df74bc8b5bec01ff4b66954f9e8cb752;hb=611ca385dea3d611a97579000311cc42684305e6;hp=4a35ca8fc30a351602c0f7eb78adf1b26e854467;hpb=90da25505f9cfbd16a9088e20714b24c2c6fa215;p=akkoma

diff --git a/lib/pleroma/web/websub/websub.ex b/lib/pleroma/web/websub/websub.ex
index 4a35ca8fc..47a01849d 100644
--- a/lib/pleroma/web/websub/websub.ex
+++ b/lib/pleroma/web/websub/websub.ex
@@ -1,16 +1,20 @@
 defmodule Pleroma.Web.Websub do
+  alias Ecto.Changeset
   alias Pleroma.Repo
   alias Pleroma.Web.Websub.{WebsubServerSubscription, WebsubClientSubscription}
   alias Pleroma.Web.OStatus.FeedRepresenter
-  alias Pleroma.Web.OStatus
-  alias Pleroma.Web.XML
+  alias Pleroma.Web.{XML, Endpoint, OStatus}
+  alias Pleroma.Web.Router.Helpers
   require Logger
 
   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,
@@ -25,31 +29,48 @@ defmodule Pleroma.Web.Websub do
     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)
+    else e ->
+      Logger.debug("Couldn't verify subscription")
+      Logger.debug(inspect(e))
       {:error, subscription}
     end
   end
 
-  def publish(topic, user, activity) do
+  @supported_activities [
+    "Create",
+    "Follow",
+    "Like",
+    "Announce",
+    "Undo",
+    "Delete"
+  ]
+  def publish(topic, user, %{data: %{"type" => type}} = activity) when type in @supported_activities 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 publish(_,_,_), do: ""
+
+  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),
@@ -65,22 +86,32 @@ defmodule Pleroma.Web.Websub do
         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
@@ -93,50 +124,67 @@ defmodule Pleroma.Web.Websub 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,
       "hub.secret": websub.secret,
-      "hub.callback": "https://social.heldscal.la/callback"
+      "hub.callback": Helpers.websub_url(Endpoint, :websub_subscription_confirmation, websub.id)
     ]
 
     # This checks once a second if we are confirmed yet
@@ -160,10 +208,25 @@ defmodule Pleroma.Web.Websub do
       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