Websub controller beginnings.

lib/pleroma/web/ostatus/feed_representer.ex

@@ -20,7 +20,7 @@ def to_simple_form(user, activities, users) do
         {:id, h.(OStatus.feed_path(user))},
         {:title, ['#{user.nickname}\'s timeline']},
         {:updated, h.(most_recent_update)},
-        {:link, [rel: 'hub', href: h.(OStatus.pubsub_path)], []},
+        {:link, [rel: 'hub', href: h.(OStatus.pubsub_path(user))], []},
         {:author, UserRepresenter.to_simple_form(user)}
       ] ++ entries
     }]

lib/pleroma/web/ostatus/ostatus.ex

@@ -5,8 +5,8 @@ def feed_path(user) do
     "#{user.ap_id}/feed.atom"
   end
 
-  def pubsub_path() do
-    "#{Web.base_url}/push/hub"
+  def pubsub_path(user) do
+    "#{Web.base_url}/push/hub/#{user.nickname}"
   end
 
   def user_path(user) do

lib/pleroma/web/router.ex

@@ -62,7 +62,7 @@ def user_fetcher(username) do
     pipe_through :ostatus
 
     get "/users/:nickname/feed", OStatus.OStatusController, :feed
-    post "/push/hub", OStatus.OStatusController, :temp
+    post "/push/hub/:nickname", Websub.WebsubController, :websub_subscription_request
   end
 
   scope "/.well-known", Pleroma.Web do

lib/pleroma/web/websub/websub_controller.ex

@@ -0,0 +1,48 @@
+defmodule Pleroma.Web.Websub.WebsubController do
+  use Pleroma.Web, :controller
+  alias Pleroma.Web.Websub.WebsubServerSubscription
+  alias Pleroma.{Repo, User}
+  alias Pleroma.Web.OStatus
+  def websub_subscription_request(conn, %{"nickname" => nickname} = params) do
+    user = User.get_cached_by_nickname(nickname)
+
+    with {:ok, topic} <- valid_topic(params, user),
+         {:ok, lease_time} <- lease_time(params),
+         secret <- params["hub.secret"]
+    do
+      data = %{
+        state: "requested",
+        topic: topic,
+        secret: secret
+      }
+
+      change = Ecto.Changeset.change(%WebsubServerSubscription{}, data)
+      websub = Repo.insert!(change)
+
+      change = Ecto.Changeset.change(websub, %{valid_until: NaiveDateTime.add(websub.inserted_at, lease_time)})
+      websub = Repo.update!(change)
+
+      conn
+      |> send_resp(202, "Accepted")
+    else {:error, reason} ->
+      conn
+      |> send_resp(500, reason)
+    end
+  end
+
+  defp lease_time(%{"hub.lease_seconds" => lease_seconds}) do
+    {:ok, lease_seconds}
+  end
+
+  defp lease_time(_) do
+    {:ok, 60 * 60 * 24 * 3} # three days
+  end
+
+  defp valid_topic(%{"hub.topic" => topic}, user) do
+    if topic == OStatus.feed_path(user) do
+      {:ok, topic}
+    else
+      {:error, "Wrong topic requested, expected #{OStatus.feed_path(user)}, got #{topic}"}
+    end
+  end
+end

lib/pleroma/web/websub/websub_server_subscription.ex

@@ -7,5 +7,7 @@ defmodule Pleroma.Web.Websub.WebsubServerSubscription do
     field :secret, :string
     field :valid_until, :naive_datetime
     field :state, :string
+
+    timestamps()
   end
 end

test/web/ostatus/feed_representer_test.exs

@@ -26,7 +26,7 @@ test "returns a feed of the last 20 items of the user" do
       <id>#{OStatus.feed_path(user)}</id>
       <title>#{user.nickname}'s timeline</title>
       <updated>#{most_recent_update}</updated>
-      <link rel="hub" href="#{OStatus.pubsub_path}" />
+      <link rel="hub" href="#{OStatus.pubsub_path(user)}" />
       <author>
         #{user_xml}
       </author>

test/web/websub/websub_controller_test.exs

@@ -0,0 +1,30 @@
+defmodule Pleroma.Web.Websub.WebsubControllerTest do
+  use Pleroma.Web.ConnCase
+  import Pleroma.Factory
+  alias Pleroma.Repo
+  alias Pleroma.Web.Websub.WebsubServerSubscription
+
+  test "websub subscription request", %{conn: conn} do
+    user = insert(:user)
+
+    path = Pleroma.Web.OStatus.pubsub_path(user)
+
+    data = %{
+      "hub.callback": "http://example.org/sub",
+      "hub.mode": "subscription",
+      "hub.topic": Pleroma.Web.OStatus.feed_path(user),
+      "hub.secret": "a random secret",
+      "hub.lease_seconds": 100
+    }
+
+    conn = conn
+    |> post(path, data)
+
+    assert response(conn, 202) == "Accepted"
+    subscription = Repo.one!(WebsubServerSubscription)
+    assert subscription.topic == Pleroma.Web.OStatus.feed_path(user)
+    assert subscription.state == "requested"
+    assert subscription.secret == "a random secret"
+    assert subscription.valid_until == NaiveDateTime.add(subscription.inserted_at, 100)
+  end
+end