Add webfinger and basic feed support.

lib/pleroma/web/ostatus/feed_representer.ex

@@ -0,0 +1,26 @@
+defmodule Pleroma.Web.OStatus.FeedRepresenter do
+  alias Pleroma.Web.OStatus
+  alias Pleroma.Web.OStatus.UserRepresenter
+
+  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 = []
+    [{
+      :feed, [
+        xmlns: 'http://www.w3.org/2005/Atom',
+        "xmlns:activity": 'http://activitystrea.ms/spec/1.0/'
+      ], [
+        {:id, h.(OStatus.feed_path(user))},
+        {:title, ['#{user.nickname}\'s timeline']},
+        {:updated, h.(most_recent_update)},
+        {:entries, []},
+        {:link, [rel: 'hub', href: h.(OStatus.pubsub_path)], []},
+        {:author, UserRepresenter.to_simple_form(user)}
+      ]
+    }]
+  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() do
+    "#{Web.base_url}/push/hub"
+  end
+
+  def user_path(user) do
+  end
+end

lib/pleroma/web/ostatus/ostatus_controller.ex

@@ -0,0 +1,26 @@
+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)
+
+    conn
+    |> put_resp_content_type("application/atom+xml")
+    |> send_resp(200, response)
+  end
+end

lib/pleroma/web/ostatus/user_representer.ex

@@ -1,14 +1,15 @@
 defmodule Pleroma.Web.OStatus.UserRepresenter do
   alias Pleroma.User
-  def to_tuple(user, wrapper \\ :author) do
-    {
-      wrapper, [
-        { :id, user.ap_id },
-        { :"activity:object", "http://activitystrea.ms/schema/1.0/person" },
-        { :uri, user.ap_id },
-        { :name, user.nickname },
-        { :link, %{rel: "avatar", href: User.avatar_url(user)}}
-      ]
-    }
+  def to_simple_form(user) do
+    ap_id = to_charlist(user.ap_id)
+    nickname = to_charlist(user.nickname)
+    avatar_url = to_charlist(User.avatar_url(user))
+    [
+      { :id, [ap_id] },
+      { :"activity:object", ['http://activitystrea.ms/schema/1.0/person'] },
+      { :uri, [ap_id] },
+      { :name, [nickname] },
+      { :link, [rel: 'avatar', href: avatar_url], []}
+    ]
   end
 end

lib/pleroma/web/router.ex

@@ -54,6 +54,16 @@ defmodule Pleroma.Web.Router do
     post "/qvitter/update_avatar", TwitterAPI.Controller, :update_avatar
   end
 
+  pipeline :ostatus do
+    plug :accepts, ["xml", "atom"]
+  end
+
+  scope "/users", Pleroma.Web do
+    pipe_through :ostatus
+
+    get "/:nickname/feed", OStatus.OStatusController, :feed
+  end
+
   scope "/.well-known", Pleroma.Web do
     pipe_through :well_known
 

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