Merge branch '1763-password-updates' into 'develop'

Authentication Plug: Update bcrypt password on login.

Closes #1763

See merge request pleroma/pleroma!2542

lib/pleroma/plugs/authentication_plug.ex

@@ -30,6 +30,25 @@ defmodule Pleroma.Plugs.AuthenticationPlug do
     false
   end
 
+  def maybe_update_password(%User{password_hash: "$2" <> _} = user, password) do
+    do_update_password(user, password)
+  end
+
+  def maybe_update_password(%User{password_hash: "$6" <> _} = user, password) do
+    do_update_password(user, password)
+  end
+
+  def maybe_update_password(user, _), do: {:ok, user}
+
+  defp do_update_password(user, password) do
+    user
+    |> User.password_update_changeset(%{
+      "password" => password,
+      "password_confirmation" => password
+    })
+    |> Pleroma.Repo.update()
+  end
+
   def call(%{assigns: %{user: %User{}}} = conn, _), do: conn
 
   def call(
@@ -42,6 +61,8 @@ defmodule Pleroma.Plugs.AuthenticationPlug do
         _
       ) do
     if checkpw(password, password_hash) do
+      {:ok, auth_user} = maybe_update_password(auth_user, password)
+
       conn
       |> assign(:user, auth_user)
       |> OAuthScopesPlug.skip_plug()

lib/pleroma/web/auth/pleroma_authenticator.ex

@@ -16,7 +16,8 @@ defmodule Pleroma.Web.Auth.PleromaAuthenticator 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
+         {_, true} <- {:checkpw, AuthenticationPlug.checkpw(password, user.password_hash)},
+         {:ok, user} <- AuthenticationPlug.maybe_update_password(user, password) do
       {:ok, user}
     else
       {:error, _reason} = error -> error

test/plugs/authentication_plug_test.exs

@@ -11,6 +11,7 @@ defmodule Pleroma.Plugs.AuthenticationPlugTest do
   alias Pleroma.User
 
   import ExUnit.CaptureLog
+  import Pleroma.Factory
 
   setup %{conn: conn} do
     user = %User{
@@ -50,16 +51,41 @@ defmodule Pleroma.Plugs.AuthenticationPlugTest do
     assert PlugHelper.plug_skipped?(conn, OAuthScopesPlug)
   end
 
-  test "with a wrong password in the credentials, it does nothing", %{conn: conn} do
+  test "with a bcrypt hash, it updates to a pkbdf2 hash", %{conn: conn} do
+    user = insert(:user, password_hash: Bcrypt.hash_pwd_salt("123"))
+    assert "$2" <> _ = user.password_hash
+
     conn =
       conn
-      |> assign(:auth_credentials, %{password: "wrong"})
-
-    ret_conn =
-      conn
+      |> assign(:auth_user, user)
+      |> assign(:auth_credentials, %{password: "123"})
       |> AuthenticationPlug.call(%{})
 
-    assert conn == ret_conn
+    assert conn.assigns.user.id == conn.assigns.auth_user.id
+    assert PlugHelper.plug_skipped?(conn, OAuthScopesPlug)
+
+    user = User.get_by_id(user.id)
+    assert "$pbkdf2" <> _ = user.password_hash
+  end
+
+  test "with a crypt hash, it updates to a pkbdf2 hash", %{conn: conn} do
+    user =
+      insert(:user,
+        password_hash:
+          "$6$9psBWV8gxkGOZWBz$PmfCycChoxeJ3GgGzwvhlgacb9mUoZ.KUXNCssekER4SJ7bOK53uXrHNb2e4i8yPFgSKyzaW9CcmrDXWIEMtD1"
+      )
+
+    conn =
+      conn
+      |> assign(:auth_user, user)
+      |> assign(:auth_credentials, %{password: "password"})
+      |> AuthenticationPlug.call(%{})
+
+    assert conn.assigns.user.id == conn.assigns.auth_user.id
+    assert PlugHelper.plug_skipped?(conn, OAuthScopesPlug)
+
+    user = User.get_by_id(user.id)
+    assert "$pbkdf2" <> _ = user.password_hash
   end
 
   describe "checkpw/2" do

test/web/auth/pleroma_authenticator_test.exs

@@ -15,11 +15,16 @@ defmodule Pleroma.Web.Auth.PleromaAuthenticatorTest do
     {:ok, [user: user, name: name, password: password]}
   end
 
-  test "get_user/authorization", %{user: user, name: name, password: password} do
+  test "get_user/authorization", %{name: name, password: password} do
+    name = name <> "1"
+    user = insert(:user, nickname: name, password_hash: Bcrypt.hash_pwd_salt(password))
+
     params = %{"authorization" => %{"name" => name, "password" => password}}
     res = PleromaAuthenticator.get_user(%Plug.Conn{params: params})
 
-    assert {:ok, user} == res
+    assert {:ok, returned_user} = res
+    assert returned_user.id == user.id
+    assert "$pbkdf2" <> _ = returned_user.password_hash
   end
 
   test "get_user/authorization with invalid password", %{name: name} do