Merge branch 'ostatus' into develop

config/config.exs

@@ -30,6 +30,8 @@ config :mime, :types, %{
   "application/xrd+xml" => ["xrd+xml"]
 }
 
+config :pleroma, :websub_verifier, Pleroma.Web.Websub
+
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
 import_config "#{Mix.env}.exs"

config/test.exs

@@ -24,3 +24,5 @@ config :pleroma, Pleroma.Repo,
 
 # Reduce hash rounds for testing
 config :comeonin, :pbkdf2_rounds, 1
+
+config :pleroma, :websub_verifier, Pleroma.Web.WebsubMock

lib/pleroma/web/endpoint.ex

@@ -9,6 +9,9 @@ defmodule Pleroma.Web.Endpoint do
   # when deploying your static files in production.
   plug Plug.Static,
     at: "/media", from: "uploads", gzip: false
+  plug Plug.Static,
+    at: "/", from: :pleroma,
+    only: ~w(index.html static)
 
   # Code reloading can be explicitly enabled under the
   # :code_reloader configuration of your endpoint.

lib/pleroma/web/ostatus/activity_representer.ex

@@ -0,0 +1,27 @@
+defmodule Pleroma.Web.OStatus.ActivityRepresenter do
+  def to_simple_form(%{data: %{"object" => %{"type" => "Note"}}} = activity, user) do
+    h = fn(str) -> [to_charlist(str)] end
+
+    updated_at = activity.updated_at
+    |> NaiveDateTime.to_iso8601
+    inserted_at = activity.inserted_at
+    |> NaiveDateTime.to_iso8601
+
+    attachments = Enum.map(activity.data["object"]["attachment"] || [], fn(attachment) ->
+      url = hd(attachment["url"])
+      {:link, [rel: 'enclosure', href: to_charlist(url["href"]), type: to_charlist(url["mediaType"])], []}
+    end)
+
+    [
+      {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/note']},
+      {:"activity:verb", ['http://activitystrea.ms/schema/1.0/post']},
+      {:id, h.(activity.data["object"]["id"])},
+      {:title, ['New note by #{user.nickname}']},
+      {:content, [type: 'html'], h.(activity.data["object"]["content"])},
+      {:published, h.(inserted_at)},
+      {:updated, h.(updated_at)}
+    ] ++ attachments
+  end
+
+  def to_simple_form(_,_), do: nil
+end

lib/pleroma/web/ostatus/feed_representer.ex

@@ -0,0 +1,31 @@
+defmodule Pleroma.Web.OStatus.FeedRepresenter do
+  alias Pleroma.Web.OStatus
+  alias Pleroma.Web.OStatus.{UserRepresenter, ActivityRepresenter}
+
+  def to_simple_form(user, activities, users) do
+    most_recent_update = List.first(activities).updated_at
+    |> NaiveDateTime.to_iso8601
+
+    h = fn(str) -> [to_charlist(str)] end
+
+    entries = Enum.map(activities, fn(activity) ->
+      {:entry, ActivityRepresenter.to_simple_form(activity, user)}
+    end)
+    |> Enum.filter(fn ({_, form}) -> form end)
+
+    [{
+      :feed, [
+        xmlns: 'http://www.w3.org/2005/Atom',
+        "xmlns:activity": 'http://activitystrea.ms/spec/1.0/',
+        "xmlns:poco": 'http://portablecontacts.net/spec/1.0'
+      ], [
+        {:id, h.(OStatus.feed_path(user))},
+        {:title, ['#{user.nickname}\'s timeline']},
+        {:updated, h.(most_recent_update)},
+        {:link, [rel: 'hub', href: h.(OStatus.pubsub_path(user))], []},
+        {:link, [rel: 'self', href: h.(OStatus.feed_path(user))], []},
+        {:author, UserRepresenter.to_simple_form(user)},
+      ] ++ entries
+    }]
+  end
+end

lib/pleroma/web/ostatus/ostatus.ex

@@ -0,0 +1,14 @@
+defmodule Pleroma.Web.OStatus do
+  alias Pleroma.Web
+
+  def feed_path(user) do
+    "#{user.ap_id}/feed.atom"
+  end
+
+  def pubsub_path(user) do
+    "#{Web.base_url}/push/hub/#{user.nickname}"
+  end
+
+  def user_path(user) do
+  end
+end

lib/pleroma/web/ostatus/ostatus_controller.ex

@@ -0,0 +1,31 @@
+defmodule Pleroma.Web.OStatus.OStatusController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.{User, Activity}
+  alias Pleroma.Web.OStatus.FeedRepresenter
+  alias Pleroma.Repo
+  import Ecto.Query
+
+  def feed(conn, %{"nickname" => nickname}) do
+    user = User.get_cached_by_nickname(nickname)
+    query = from activity in Activity,
+      where: fragment("? @> ?", activity.data, ^%{actor: user.ap_id}),
+      limit: 20,
+      order_by: [desc: :inserted_at]
+
+    activities = query
+    |> Repo.all
+
+    response = FeedRepresenter.to_simple_form(user, activities, [user])
+    |> :xmerl.export_simple(:xmerl_xml)
+    |> to_string
+
+    conn
+    |> put_resp_content_type("application/atom+xml")
+    |> send_resp(200, response)
+  end
+
+  def temp(conn, params) do
+    IO.inspect(params)
+  end
+end

lib/pleroma/web/ostatus/user_representer.ex

@@ -1,14 +1,20 @@
 defmodule Pleroma.Web.OStatus.UserRepresenter do
   alias Pleroma.User
-  def to_tuple(user, wrapper \\ :author) do
+  def to_simple_form(user) do
-    {
+    ap_id = to_charlist(user.ap_id)
-      wrapper, [
+    nickname = to_charlist(user.nickname)
-        { :id, user.ap_id },
+    name = to_charlist(user.name)
-        { :"activity:object", "http://activitystrea.ms/schema/1.0/person" },
+    bio = to_charlist(user.bio)
-        { :uri, user.ap_id },
+    avatar_url = to_charlist(User.avatar_url(user))
-        { :name, user.nickname },
+    [
-        { :link, %{rel: "avatar", href: User.avatar_url(user)}}
+      { :id, [ap_id] },
-      ]
+      { :"activity:object", ['http://activitystrea.ms/schema/1.0/person'] },
-    }
+      { :uri, [ap_id] },
+      { :"poco:preferredUsername", [nickname] },
+      { :"poco:displayName", [name] },
+      { :"poco:note", [bio] },
+      { :name, [nickname] },
+      { :link, [rel: 'avatar', href: avatar_url], []}
+    ]
   end
 end

lib/pleroma/web/router.ex

@@ -66,10 +66,31 @@ defmodule Pleroma.Web.Router do
     post "/qvitter/update_avatar", TwitterAPI.Controller, :update_avatar
   end
 
+  pipeline :ostatus do
+    plug :accepts, ["xml", "atom"]
+  end
+
+  scope "/", Pleroma.Web do
+    pipe_through :ostatus
+
+    get "/users/:nickname/feed", OStatus.OStatusController, :feed
+    post "/push/hub/:nickname", Websub.WebsubController, :websub_subscription_request
+  end
+
   scope "/.well-known", Pleroma.Web do
     pipe_through :well_known
 
     get "/host-meta", WebFinger.WebFingerController, :host_meta
     get "/webfinger", WebFinger.WebFingerController, :webfinger
   end
+
+  scope "/", Fallback do
+    get "/*path", RedirectController, :redirector
+  end
+
+end
+
+defmodule Fallback.RedirectController do
+  use Pleroma.Web, :controller
+  def redirector(conn, _params), do: send_file(conn, 200, "priv/static/index.html")
 end

lib/pleroma/web/twitter_api/twitter_api.ex

@@ -66,7 +66,9 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
                end
 
     with {:ok, activity} <- ActivityPub.insert(activity) do
-      add_conversation_id(activity)
+      {:ok, activity} = add_conversation_id(activity)
+      Pleroma.Web.Websub.publish(Pleroma.Web.OStatus.feed_path(user), user, activity)
+      {:ok, activity}
     end
   end
 

lib/pleroma/web/web_finger/web_finger.ex

@@ -1,6 +1,7 @@
 defmodule Pleroma.Web.WebFinger do
   alias Pleroma.XmlBuilder
   alias Pleroma.User
+  alias Pleroma.Web.OStatus
 
   def host_meta() do
     base_url  = Pleroma.Web.base_url
@@ -30,7 +31,7 @@ defmodule Pleroma.Web.WebFinger do
       [
         {:Subject, "acct:#{user.nickname}@#{Pleroma.Web.host}"},
         {:Alias, user.ap_id},
-        {:Link, %{rel: "http://schemas.google.com/g/2010#updates-from", type: "application/atom+xml", href: "#{user.ap_id}.atom"}}
+        {:Link, %{rel: "http://schemas.google.com/g/2010#updates-from", type: "application/atom+xml", href: OStatus.feed_path(user)}}
       ]
     }
     |> XmlBuilder.to_doc

lib/pleroma/web/websub/websub.ex

@@ -0,0 +1,102 @@
+defmodule Pleroma.Web.Websub do
+  alias Pleroma.Repo
+  alias Pleroma.Web.Websub.WebsubServerSubscription
+  alias Pleroma.Web.OStatus.FeedRepresenter
+  alias Pleroma.Web.OStatus
+
+  import Ecto.Query
+
+  @websub_verifier Application.get_env(:pleroma, :websub_verifier)
+
+  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
+
+    params = %{
+      "hub.challenge": challenge,
+      "hub.lease_seconds": lease_seconds,
+      "hub.topic": subscription.topic,
+      "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
+    do
+      changeset = Ecto.Changeset.change(subscription, %{state: "active"})
+      Repo.update(changeset)
+    else _e ->
+      changeset = Ecto.Changeset.change(subscription, %{state: "rejected"})
+      {:ok, subscription } = Repo.update(changeset)
+      {:error, subscription}
+    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
+
+  def incoming_subscription_request(user, %{"hub.mode" => "subscribe"} = params) do
+    with {:ok, topic} <- valid_topic(params, user),
+         {:ok, lease_time} <- lease_time(params),
+         secret <- params["hub.secret"],
+         callback <- params["hub.callback"]
+    do
+      subscription = get_subscription(topic, callback)
+      data = %{
+        state: subscription.state || "requested",
+        topic: topic,
+        secret: secret,
+        callback: callback
+      }
+
+      change = Ecto.Changeset.change(subscription, data)
+      websub = Repo.insert_or_update!(change)
+
+      change = Ecto.Changeset.change(websub, %{valid_until: NaiveDateTime.add(websub.updated_at, lease_time)})
+      websub = Repo.update!(change)
+
+      # Just spawn that for now, maybe pool later.
+      spawn(fn -> @websub_verifier.verify(websub) end)
+
+      {:ok, websub}
+    else {:error, reason} ->
+      {:error, reason}
+    end
+  end
+
+  defp get_subscription(topic, callback) do
+    Repo.get_by(WebsubServerSubscription, topic: topic, callback: callback) || %WebsubServerSubscription{}
+  end
+
+  defp lease_time(%{"hub.lease_seconds" => lease_seconds}) do
+    {:ok, String.to_integer(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_controller.ex

@@ -0,0 +1,18 @@
+defmodule Pleroma.Web.Websub.WebsubController do
+  use Pleroma.Web, :controller
+  alias Pleroma.User
+  alias Pleroma.Web.Websub
+
+  def websub_subscription_request(conn, %{"nickname" => nickname} = params) do
+    user = User.get_cached_by_nickname(nickname)
+
+    with {:ok, _websub} <- Websub.incoming_subscription_request(user, params)
+    do
+      conn
+      |> send_resp(202, "Accepted")
+    else {:error, reason} ->
+      conn
+      |> send_resp(500, reason)
+    end
+  end
+end

lib/pleroma/web/websub/websub_server_subscription.ex

@@ -0,0 +1,13 @@
+defmodule Pleroma.Web.Websub.WebsubServerSubscription do
+  use Ecto.Schema
+
+  schema "websub_server_subscriptions" do
+    field :topic, :string
+    field :callback, :string
+    field :secret, :string
+    field :valid_until, :naive_datetime
+    field :state, :string
+
+    timestamps()
+  end
+end

mix.exs

@@ -39,6 +39,7 @@ defmodule Pleroma.Mixfile do
      {:html_sanitize_ex, "~> 1.0.0"},
      {:calendar, "~> 0.16.1"},
      {:cachex, "~> 2.1"},
+     {:httpoison, "~> 0.11.1"},
      {:ex_machina, "~> 2.0", only: :test},
      {:mix_test_watch, "~> 0.2", only: :dev}]
   end

mix.lock

@@ -18,6 +18,7 @@
   "gettext": {:hex, :gettext, "0.13.1", "5e0daf4e7636d771c4c71ad5f3f53ba09a9ae5c250e1ab9c42ba9edccc476263", [:mix], []},
   "hackney": {:hex, :hackney, "1.7.1", "e238c52c5df3c3b16ce613d3a51c7220a784d734879b1e231c9babd433ac1cb4", [:rebar3], [{:certifi, "1.0.0", [hex: :certifi, optional: false]}, {:idna, "4.0.0", [hex: :idna, optional: false]}, {:metrics, "1.0.1", [hex: :metrics, optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, optional: false]}]},
   "html_sanitize_ex": {:hex, :html_sanitize_ex, "1.0.1", "2572e7122c78ab7e57b613e7c7f5e42bf9b3c25e430e32f23f1413d86db8a0af", [:mix], [{:mochiweb, "~> 2.12.2", [hex: :mochiweb, optional: false]}]},
+  "httpoison": {:hex, :httpoison, "0.11.1", "d06c571274c0e77b6cc50e548db3fd7779f611fbed6681fd60a331f66c143a0b", [:mix], [{:hackney, "~> 1.7.0", [hex: :hackney, optional: false]}]},
   "idna": {:hex, :idna, "4.0.0", "10aaa9f79d0b12cf0def53038547855b91144f1bfcc0ec73494f38bb7b9c4961", [:rebar3], []},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], []},
   "mime": {:hex, :mime, "1.1.0", "01c1d6f4083d8aa5c7b8c246ade95139620ef8effb009edde934e0ec3b28090a", [:mix], []},

priv/repo/migrations/20170418200143_create_webssub_server_subscription.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.CreateWebsubServerSubscription do
+  use Ecto.Migration
+
+  def change do
+    create table(:websub_server_subscriptions) do
+      add :topic, :string
+      add :callback, :string
+      add :secret, :string
+      add :valid_until, :naive_datetime
+      add :state, :string
+
+      timestamps()
+    end
+  end
+end

test/support/factory.ex

@@ -3,7 +3,7 @@ defmodule Pleroma.Factory do
 
   def user_factory do
     user = %Pleroma.User{
-      name: sequence(:name, &"Test User #{&1}"),
+      name: sequence(:name, &"Test テスト User #{&1}"),
       email: sequence(:email, &"user#{&1}@example.com"),
       nickname: sequence(:nickname, &"nick#{&1}"),
       password_hash: Comeonin.Pbkdf2.hashpwsalt("test"),
@@ -64,4 +64,14 @@ defmodule Pleroma.Factory do
       data: data
     }
   end
+
+  def websub_subscription_factory do
+    %Pleroma.Web.Websub.WebsubServerSubscription{
+      topic: "http://example.org",
+      callback: "http://example/org/callback",
+      secret: "here's a secret",
+      valid_until: NaiveDateTime.add(NaiveDateTime.utc_now, 100),
+      state: "requested"
+    }
+  end
 end

test/web/ostatus/activity_representer_test.exs

@@ -0,0 +1,43 @@
+defmodule Pleroma.Web.OStatus.ActivityRepresenterTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Web.OStatus.ActivityRepresenter
+  alias Pleroma.{User, Activity}
+
+  import Pleroma.Factory
+
+  test "a note activity" do
+    note_activity = insert(:note_activity)
+    updated_at = note_activity.updated_at
+    |> NaiveDateTime.to_iso8601
+    inserted_at = note_activity.inserted_at
+    |> NaiveDateTime.to_iso8601
+
+    user = User.get_cached_by_ap_id(note_activity.data["actor"])
+
+    expected = """
+    <activity:object-type>http://activitystrea.ms/schema/1.0/note</activity:object-type>
+    <activity:verb>http://activitystrea.ms/schema/1.0/post</activity:verb>
+    <id>#{note_activity.data["object"]["id"]}</id>
+    <title>New note by #{user.nickname}</title>
+    <content type="html">#{note_activity.data["object"]["content"]}</content>
+    <published>#{inserted_at}</published>
+    <updated>#{updated_at}</updated>
+    """
+
+    tuple = ActivityRepresenter.to_simple_form(note_activity, user)
+
+    res = :xmerl.export_simple_content(tuple, :xmerl_xml) |> IO.iodata_to_binary
+
+    assert clean(res) == clean(expected)
+  end
+
+  test "an unknown activity" do
+    tuple = ActivityRepresenter.to_simple_form(%Activity{}, nil)
+    assert is_nil(tuple)
+  end
+
+  defp clean(string) do
+    String.replace(string, ~r/\s/, "")
+  end
+end

test/web/ostatus/feed_representer_test.exs

@@ -0,0 +1,45 @@
+defmodule Pleroma.Web.OStatus.FeedRepresenterTest do
+  use Pleroma.DataCase
+  import Pleroma.Factory
+  alias Pleroma.User
+  alias Pleroma.Web.OStatus.{FeedRepresenter, UserRepresenter, ActivityRepresenter}
+  alias Pleroma.Web.OStatus
+
+  test "returns a feed of the last 20 items of the user" do
+    note_activity = insert(:note_activity)
+    user = User.get_cached_by_ap_id(note_activity.data["actor"])
+
+    tuple = FeedRepresenter.to_simple_form(user, [note_activity], [user])
+
+    most_recent_update = note_activity.updated_at
+    |> NaiveDateTime.to_iso8601
+
+    res = :xmerl.export_simple_content(tuple, :xmerl_xml) |> to_string
+    user_xml = UserRepresenter.to_simple_form(user)
+    |> :xmerl.export_simple_content(:xmerl_xml)
+
+    entry_xml = ActivityRepresenter.to_simple_form(note_activity, user)
+    |> :xmerl.export_simple_content(:xmerl_xml)
+
+    expected = """
+    <feed xmlns="http://www.w3.org/2005/Atom" xmlns:activity="http://activitystrea.ms/spec/1.0/" xmlns:poco="http://portablecontacts.net/spec/1.0">
+      <id>#{OStatus.feed_path(user)}</id>
+      <title>#{user.nickname}'s timeline</title>
+      <updated>#{most_recent_update}</updated>
+      <link rel="hub" href="#{OStatus.pubsub_path(user)}" />
+      <link rel="self" href="#{OStatus.feed_path(user)}" />
+      <author>
+        #{user_xml}
+      </author>
+      <entry>
+        #{entry_xml}
+      </entry>
+    </feed>
+    """
+    assert clean(res) == clean(expected)
+  end
+
+  defp clean(string) do
+    String.replace(string, ~r/\s/, "")
+  end
+end

test/web/ostatus/ostatus_controller_test.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Web.OStatus.OStatusControllerTest do
+  use Pleroma.Web.ConnCase
+  import Pleroma.Factory
+  alias Pleroma.User
+
+  test "gets a feed", %{conn: conn} do
+    note_activity = insert(:note_activity)
+    user = User.get_cached_by_ap_id(note_activity.data["actor"])
+
+    conn = conn
+    |> get("/users/#{user.nickname}/feed.atom")
+
+    assert response(conn, 200)
+  end
+end

test/web/ostatus/user_representer_test.exs

@@ -3,15 +3,29 @@ defmodule Pleroma.Web.OStatus.UserRepresenterTest do
   alias Pleroma.Web.OStatus.UserRepresenter
 
   import Pleroma.Factory
+  alias Pleroma.User
 
   test "returns a user with id, uri, name and link" do
-    user = build(:user)
+    user = build(:user, nickname: "レイン")
-    tuple = UserRepresenter.to_tuple(user)
+    tuple = UserRepresenter.to_simple_form(user)
-    {:author, author} = tuple
 
-    [:id, :uri, :name, :link]
+    res = :xmerl.export_simple_content(tuple, :xmerl_xml) |> to_string
-    |> Enum.each(fn (tag) ->
+
-      assert Enum.find(author, fn(e) -> tag == elem(e, 0) end)
+    expected = """
-    end)
+    <id>#{user.ap_id}</id>
+    <activity:object>http://activitystrea.ms/schema/1.0/person</activity:object>
+    <uri>#{user.ap_id}</uri>
+    <poco:preferredUsername>#{user.nickname}</poco:preferredUsername>
+    <poco:displayName>#{user.name}</poco:displayName>
+    <poco:note>#{user.bio}</poco:note>
+    <name>#{user.nickname}</name>
+    <link rel="avatar" href="#{User.avatar_url(user)}" />
+    """
+
+    assert clean(res) == clean(expected)
+  end
+
+  defp clean(string) do
+    String.replace(string, ~r/\s/, "")
   end
 end

test/web/websub/websub_controller_test.exs

@@ -0,0 +1,23 @@
+defmodule Pleroma.Web.Websub.WebsubControllerTest do
+  use Pleroma.Web.ConnCase
+  import Pleroma.Factory
+
+  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": "subscribe",
+      "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"
+  end
+end

test/web/websub/websub_test.exs

@@ -0,0 +1,90 @@
+defmodule Pleroma.Web.WebsubMock do
+  def verify(sub) do
+    {:ok, sub}
+  end
+end
+defmodule Pleroma.Web.WebsubTest do
+  use Pleroma.DataCase
+  alias Pleroma.Web.Websub
+  alias Pleroma.Web.Websub.WebsubServerSubscription
+  import Pleroma.Factory
+
+  test "a verification of a request that is accepted" do
+    sub = insert(:websub_subscription)
+    topic = sub.topic
+
+    getter = fn (_path, _headers, options) ->
+      %{
+        "hub.challenge": challenge,
+        "hub.lease_seconds": seconds,
+        "hub.topic": ^topic,
+        "hub.mode": "subscribe"
+      } = Keyword.get(options, :params)
+
+      assert String.to_integer(seconds) > 0
+
+      {:ok, %HTTPoison.Response{
+        status_code: 200,
+        body: challenge
+      }}
+    end
+
+    {:ok, sub} = Websub.verify(sub, getter)
+    assert sub.state == "active"
+  end
+
+  test "a verification of a request that doesn't return 200" do
+    sub = insert(:websub_subscription)
+
+    getter = fn (_path, _headers, _options) ->
+      {:ok, %HTTPoison.Response{
+        status_code: 500,
+        body: ""
+      }}
+    end
+
+    {:error, sub} = Websub.verify(sub, getter)
+    assert sub.state == "rejected"
+  end
+
+  test "an incoming subscription request" do
+    user = insert(:user)
+
+    data = %{
+      "hub.callback" => "http://example.org/sub",
+      "hub.mode" => "subscribe",
+      "hub.topic" => Pleroma.Web.OStatus.feed_path(user),
+      "hub.secret" => "a random secret",
+      "hub.lease_seconds" => "100"
+    }
+
+
+    {:ok, subscription } = Websub.incoming_subscription_request(user, data)
+    assert subscription.topic == Pleroma.Web.OStatus.feed_path(user)
+    assert subscription.state == "requested"
+    assert subscription.secret == "a random secret"
+    assert subscription.callback == "http://example.org/sub"
+  end
+
+  test "an incoming subscription request for an existing subscription" do
+    user = insert(:user)
+    sub = insert(:websub_subscription, state: "accepted", topic: Pleroma.Web.OStatus.feed_path(user))
+
+    data = %{
+      "hub.callback" => sub.callback,
+      "hub.mode" => "subscribe",
+      "hub.topic" => Pleroma.Web.OStatus.feed_path(user),
+      "hub.secret" => "a random secret",
+      "hub.lease_seconds" => "100"
+    }
+
+
+    {:ok, subscription } = Websub.incoming_subscription_request(user, data)
+    assert subscription.topic == Pleroma.Web.OStatus.feed_path(user)
+    assert subscription.state == sub.state
+    assert subscription.secret == "a random secret"
+    assert subscription.callback == sub.callback
+    assert length(Repo.all(WebsubServerSubscription)) == 1
+    assert subscription.id == sub.id
+  end
+end