1 files changed, 64 insertions, 2 deletions
diff --git a/lib/pleroma/web/auth/pleroma_authenticator.ex b/lib/pleroma/web/auth/pleroma_authenticator.ex
index 94a19ad49..c826adb4c 100644
--- a/lib/pleroma/web/auth/pleroma_authenticator.ex
+++ b/lib/pleroma/web/auth/pleroma_authenticator.ex
@@ -4,13 +4,15 @@
 
 defmodule Pleroma.Web.Auth.PleromaAuthenticator do
   alias Comeonin.Pbkdf2
+  alias Pleroma.Registration
+  alias Pleroma.Repo
   alias Pleroma.User
 
   @behaviour Pleroma.Web.Auth.Authenticator
 
-  def get_user(%Plug.Conn{} = conn) do
+  def get_user(%Plug.Conn{} = _conn, params) do
     {name, password} =
-      case conn.params do
+      case params do
         %{"authorization" => %{"name" => name, "password" => password}} ->
           {name, password}
 
@@ -27,9 +29,69 @@ defmodule Pleroma.Web.Auth.PleromaAuthenticator do
     end
   end
 
+  def get_registration(
+        %Plug.Conn{assigns: %{ueberauth_auth: %{provider: provider, uid: uid} = auth}},
+        _params
+      ) do
+    registration = Registration.get_by_provider_uid(provider, uid)
+
+    if registration do
+      {:ok, registration}
+    else
+      info = auth.info
+
+      Registration.changeset(%Registration{}, %{
+        provider: to_string(provider),
+        uid: to_string(uid),
+        info: %{
+          "nickname" => info.nickname,
+          "email" => info.email,
+          "name" => info.name,
+          "description" => info.description
+        }
+      })
+      |> Repo.insert()
+    end
+  end
+
+  def get_registration(%Plug.Conn{} = _conn, _params), do: {:error, :missing_credentials}
+
+  def create_from_registration(_conn, params, registration) do
+    nickname = value([params["nickname"], Registration.nickname(registration)])
+    email = value([params["email"], Registration.email(registration)])
+    name = value([params["name"], Registration.name(registration)]) || nickname
+    bio = value([params["bio"], Registration.description(registration)])
+
+    random_password = :crypto.strong_rand_bytes(64) |> Base.encode64()
+
+    with {:ok, new_user} <-
+           User.register_changeset(
+             %User{},
+             %{
+               email: email,
+               nickname: nickname,
+               name: name,
+               bio: bio,
+               password: random_password,
+               password_confirmation: random_password
+             },
+             external: true,
+             confirmed: true
+           )
+           |> Repo.insert(),
+         {:ok, _} <-
+           Registration.changeset(registration, %{user_id: new_user.id}) |> Repo.update() do
+      {:ok, new_user}
+    end
+  end
+
+  defp value(list), do: Enum.find(list, &(to_string(&1) != ""))
+
   def handle_error(%Plug.Conn{} = _conn, error) do
     error
   end
 
   def auth_template, do: nil
+
+  def oauth_consumer_template, do: nil
 end