Merge branch 'develop' into gun

[akkoma] / lib / pleroma / web / auth / pleroma_authenticator.ex

diff --git a/lib/pleroma/web/auth/pleroma_authenticator.ex b/lib/pleroma/web/auth/pleroma_authenticator.ex
index 5583f41a92092a7b275ab418b4b8dafc83361b24..cb09664ce0316ce7b35a4ceda76a00e6aaf46840 100644 (file)
--- a/lib/pleroma/web/auth/pleroma_authenticator.ex
+++ b/lib/pleroma/web/auth/pleroma_authenticator.ex
@@ -1,18 +1,22 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.Auth.PleromaAuthenticator do
-  alias Comeonin.Pbkdf2
+  alias Pleroma.Plugs.AuthenticationPlug
+  alias Pleroma.Registration
+  alias Pleroma.Repo
   alias Pleroma.User
 
+  import Pleroma.Web.Auth.Authenticator,
+    only: [fetch_credentials: 1, fetch_user: 1]
+
   @behaviour Pleroma.Web.Auth.Authenticator
 
-  def get_user(%Plug.Conn{} = _conn, %{
-        "authorization" => %{"name" => name, "password" => password}
-      }) do
-    with {_, %User{} = user} <- {:user, User.get_by_nickname_or_email(name)},
-         {_, true} <- {:checkpw, Pbkdf2.checkpw(password, user.password_hash)} do
+  def get_user(%Plug.Conn{} = conn) do
+    with {:ok, {name, password}} <- fetch_credentials(conn),
+         {_, %User{} = user} <- {:user, fetch_user(name)},
+         {_, true} <- {:checkpw, AuthenticationPlug.checkpw(password, user.password_hash)} do
       {:ok, user}
     else
       error ->
@@ -20,59 +24,81 @@ defmodule Pleroma.Web.Auth.PleromaAuthenticator do
     end
   end
 
-  def get_user(%Plug.Conn{} = _conn, _params), do: {:error, :missing_credentials}
+  @doc """
+  Gets or creates Pleroma.Registration record from Ueberauth assigns.
+  Note: some strategies (like `keycloak`) might need extra configuration to fill `uid` from callback response —
+    see [`docs/config.md`](docs/config.md).
+  """
+  def get_registration(%Plug.Conn{assigns: %{ueberauth_auth: %{uid: nil}}}),
+    do: {:error, :missing_uid}
 
-  def get_or_create_user_by_oauth(
-        %Plug.Conn{assigns: %{ueberauth_auth: %{provider: provider, uid: uid} = auth}},
-        _params
-      ) do
-    user = User.get_by_auth_provider_uid(provider, uid)
+  def get_registration(%Plug.Conn{
+        assigns: %{ueberauth_auth: %{provider: provider, uid: uid} = auth}
+      }) do
+    registration = Registration.get_by_provider_uid(provider, uid)
 
-    if user do
-      {:ok, user}
+    if registration do
+      {:ok, registration}
     else
       info = auth.info
-      email = info.email
-      nickname = info.nickname
-
-      # TODO: FIXME: connect to existing (non-oauth) account (need a UI flow for that) / generate a random nickname?
-      email =
-        if email && User.get_by_email(email) do
-          nil
-        else
-          email
-        end
-
-      nickname =
-        if nickname && User.get_by_nickname(nickname) do
-          nil
-        else
-          nickname
-        end
-
-      new_user =
-        User.oauth_register_changeset(
-          %User{},
-          %{
-            auth_provider: to_string(provider),
-            auth_provider_uid: to_string(uid),
-            name: info.name,
-            bio: info.description,
-            email: email,
-            nickname: nickname
-          }
-        )
-
-      Pleroma.Repo.insert(new_user)
+
+      %Registration{}
+      |> Registration.changeset(%{
+        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), do: {:error, :missing_credentials}
+
+  @doc "Creates Pleroma.User record basing on params and Pleroma.Registration record."
+  def create_from_registration(
+        %Plug.Conn{params: %{"authorization" => registration_attrs}},
+        %Registration{} = registration
+      ) do
+    nickname = value([registration_attrs["nickname"], Registration.nickname(registration)])
+    email = value([registration_attrs["email"], Registration.email(registration)])
+    name = value([registration_attrs["name"], Registration.name(registration)]) || nickname
+    bio = value([registration_attrs["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,
+             need_confirmation: false
+           )
+           |> Repo.insert(),
+         {:ok, _} <-
+           Registration.changeset(registration, %{user_id: new_user.id}) |> Repo.update() do
+      {:ok, new_user}
     end
   end
 
-  def get_or_create_user_by_oauth(%Plug.Conn{} = _conn, _params),
-    do: {:error, :missing_credentials}
+  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