Wire up mentions.

[akkoma] / lib / pleroma / web / ostatus / ostatus.ex

diff --git a/lib/pleroma/web/ostatus/ostatus.ex b/lib/pleroma/web/ostatus/ostatus.ex
index d21b9078f4bc81799c7aee86e648de56171ab177..65141f8263042561ae8633246bc5281a0f1eb668 100644 (file)
--- a/lib/pleroma/web/ostatus/ostatus.ex
+++ b/lib/pleroma/web/ostatus/ostatus.ex
@@ -1,5 +1,9 @@
 defmodule Pleroma.Web.OStatus do
-  alias Pleroma.Web
+  import Ecto.Query
+  require Logger
+
+  alias Pleroma.{Repo, User, Web}
+  alias Pleroma.Web.ActivityPub.ActivityPub
 
   def feed_path(user) do
     "#{user.ap_id}/feed.atom"
@@ -9,6 +13,126 @@ defmodule Pleroma.Web.OStatus do
     "#{Web.base_url}/push/hub/#{user.nickname}"
   end
 
-  def user_path(user) do
+  def salmon_path(user) do
+    "#{user.ap_id}/salmon"
+  end
+
+  def handle_incoming(xml_string) do
+    {doc, _rest} = :xmerl_scan.string(to_charlist(xml_string))
+
+    {:xmlObj, :string, object_type } = :xmerl_xpath.string('string(/entry/activity:object-type[1])', doc)
+
+    case object_type do
+      'http://activitystrea.ms/schema/1.0/note' ->
+        handle_note(doc)
+      _ ->
+        Logger.error("Couldn't parse incoming document")
+    end
+  end
+
+  # TODO
+  # wire up replies
+  def handle_note(doc) do
+    content_html = string_from_xpath("/entry/content[1]", doc)
+
+    [author] = :xmerl_xpath.string('/entry/author[1]', doc)
+    {:ok, actor} = find_or_make_user(author)
+
+    context = string_from_xpath("/entry/ostatus:conversation[1]", doc) |> String.trim
+    context = if String.length(context) > 0 do
+      context
+    else
+      ActivityPub.generate_context_id
+    end
+
+    to = [
+      "https://www.w3.org/ns/activitystreams#Public"
+    ]
+
+    mentions = :xmerl_xpath.string('/entry/link[@rel="mentioned" and @ostatus:object-type="http://activitystrea.ms/schema/1.0/person"]', doc)
+    |> Enum.map(fn(person) -> string_from_xpath("@href", person) end)
+
+    to = to ++ mentions
+
+    date = string_from_xpath("/entry/published", doc)
+
+    object = %{
+      "type" => "Note",
+      "to" => to,
+      "content" => content_html,
+      "published" => date,
+      "context" => context,
+      "actor" => actor.ap_id
+    }
+
+    ActivityPub.create(to, actor, context, object, %{}, date)
+  end
+
+  def find_or_make_user(author_doc) do
+    {:xmlObj, :string, uri } = :xmerl_xpath.string('string(/author[1]/uri)', author_doc)
+
+    query = from user in User,
+      where: user.local == false and fragment("? @> ?", user.info, ^%{ostatus_uri: to_string(uri)})
+
+    user = Repo.one(query)
+
+    if is_nil(user) do
+      make_user(author_doc)
+    else
+      {:ok, user}
+    end
+  end
+
+  defp string_from_xpath(xpath, doc) do
+    {:xmlObj, :string, res} = :xmerl_xpath.string('string(#{xpath})', doc)
+
+    res = res
+    |> to_string
+    |> String.trim
+
+    if res == "", do: nil, else: res
+  end
+
+  def make_user(author_doc) do
+    author = string_from_xpath("/author[1]/uri", author_doc)
+    name = string_from_xpath("/author[1]/name", author_doc)
+    preferredUsername = string_from_xpath("/author[1]/poco:preferredUsername", author_doc)
+    displayName = string_from_xpath("/author[1]/poco:displayName", author_doc)
+    avatar = make_avatar_object(author_doc)
+
+    data = %{
+      local: false,
+      name: preferredUsername || name,
+      nickname: displayName || name,
+      ap_id: author,
+      info: %{
+        "ostatus_uri" => author,
+        "host" => URI.parse(author).host,
+        "system" => "ostatus"
+      },
+      avatar: avatar
+    }
+
+    Repo.insert(Ecto.Changeset.change(%User{}, data))
+  end
+
+  # TODO: Just takes the first one for now.
+  defp make_avatar_object(author_doc) do
+    href = string_from_xpath("/author[1]/link[@rel=\"avatar\"]/@href", author_doc)
+    type = string_from_xpath("/author[1]/link[@rel=\"avatar\"]/@type", author_doc)
+
+    if href do
+      %{
+        "type" => "Image",
+        "url" =>
+          [%{
+              "type" => "Link",
+              "mediaType" => type,
+              "href" => href
+           }]
+      }
+    else
+      nil
+    end
   end
 end