Merge branch 'release/1.0.3' into 'master'

1.0.3 release

See merge request pleroma/pleroma!1514

CHANGELOG.md

@@ -3,7 +3,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
-## [Unreleased]
+## [1.0.3] - 2019-07-31
+### Security
+- OStatus: eliminate the possibility of a protocol downgrade attack.
+- OStatus: prevent following locked accounts, bypassing the approval process.
+- TwitterAPI: use CommonAPI to handle remote follows instead of OStatus.
+
 ### Fixed
 - `pleroma_ctl` not detecting the master branch properly. If you get "Releases are built only for master and develop branches" error when updating, please add `-` to the end of the line in `releases/start_erl.data`
 

lib/pleroma/web/ostatus/handlers/follow_handler.ex

@@ -9,14 +9,18 @@ defmodule Pleroma.Web.OStatus.FollowHandler do
   alias Pleroma.Web.XML
 
   def handle(entry, doc) do
-    with {:ok, actor} <- OStatus.find_make_or_update_user(doc),
+    with {:ok, actor} <- OStatus.find_make_or_update_actor(doc),
          id when not is_nil(id) <- XML.string_from_xpath("/entry/id", entry),
          followed_uri when not is_nil(followed_uri) <-
            XML.string_from_xpath("/entry/activity:object/id", entry),
          {:ok, followed} <- OStatus.find_or_make_user(followed_uri),
+         {:locked, false} <- {:locked, followed.info.locked},
          {:ok, activity} <- ActivityPub.follow(actor, followed, id, false) do
       User.follow(actor, followed)
       {:ok, activity}
+    else
+      {:locked, true} ->
+        {:error, "It's not possible to follow locked accounts over OStatus"}
     end
   end
 end

lib/pleroma/web/ostatus/handlers/note_handler.ex

@@ -108,7 +108,7 @@ def handle_note(entry, doc \\ nil) do
     with id <- XML.string_from_xpath("//id", entry),
          activity when is_nil(activity) <- Activity.get_create_by_object_ap_id_with_object(id),
          [author] <- :xmerl_xpath.string('//author[1]', doc),
-         {:ok, actor} <- OStatus.find_make_or_update_user(author),
+         {:ok, actor} <- OStatus.find_make_or_update_actor(author),
          content_html <- OStatus.get_content(entry),
          cw <- OStatus.get_cw(entry),
          in_reply_to <- XML.string_from_xpath("//thr:in-reply-to[1]/@ref", entry),

lib/pleroma/web/ostatus/handlers/unfollow_handler.ex

@@ -9,7 +9,7 @@ defmodule Pleroma.Web.OStatus.UnfollowHandler do
   alias Pleroma.Web.XML
 
   def handle(entry, doc) do
-    with {:ok, actor} <- OStatus.find_make_or_update_user(doc),
+    with {:ok, actor} <- OStatus.find_make_or_update_actor(doc),
          id when not is_nil(id) <- XML.string_from_xpath("/entry/id", entry),
          followed_uri when not is_nil(followed_uri) <-
            XML.string_from_xpath("/entry/activity:object/id", entry),

lib/pleroma/web/ostatus/ostatus.ex

@@ -56,7 +56,7 @@ def remote_follow_path do
 
   def handle_incoming(xml_string) do
     with doc when doc != :error <- parse_document(xml_string) do
-      with {:ok, actor_user} <- find_make_or_update_user(doc),
+      with {:ok, actor_user} <- find_make_or_update_actor(doc),
            do: Pleroma.Instances.set_reachable(actor_user.ap_id)
 
       entries = :xmerl_xpath.string('//entry', doc)
@@ -118,7 +118,7 @@ def handle_incoming(xml_string) do
   end
 
   def make_share(entry, doc, retweeted_activity) do
-    with {:ok, actor} <- find_make_or_update_user(doc),
+    with {:ok, actor} <- find_make_or_update_actor(doc),
          %Object{} = object <- Object.normalize(retweeted_activity),
          id when not is_nil(id) <- string_from_xpath("/entry/id", entry),
          {:ok, activity, _object} = ActivityPub.announce(actor, object, id, false) do
@@ -136,7 +136,7 @@ def handle_share(entry, doc) do
   end
 
   def make_favorite(entry, doc, favorited_activity) do
-    with {:ok, actor} <- find_make_or_update_user(doc),
+    with {:ok, actor} <- find_make_or_update_actor(doc),
          %Object{} = object <- Object.normalize(favorited_activity),
          id when not is_nil(id) <- string_from_xpath("/entry/id", entry),
          {:ok, activity, _object} = ActivityPub.like(actor, object, id, false) do
@@ -262,11 +262,18 @@ def maybe_update_ostatus(doc, user) do
     end
   end
 
-  def find_make_or_update_user(doc) do
+  def find_make_or_update_actor(doc) do
     uri = string_from_xpath("//author/uri[1]", doc)
 
-    with {:ok, user} <- find_or_make_user(uri) do
+    with {:ok, %User{} = user} <- find_or_make_user(uri),
+         {:ap_enabled, false} <- {:ap_enabled, User.ap_enabled?(user)} do
       maybe_update(doc, user)
+    else
+      {:ap_enabled, true} ->
+        {:error, :invalid_protocol}
+
+      _ ->
+        {:error, :unknown_user}
     end
   end
 

lib/pleroma/web/twitter_api/controllers/util_controller.ex

@@ -13,7 +13,6 @@ defmodule Pleroma.Web.TwitterAPI.UtilController do
   alias Pleroma.Notification
   alias Pleroma.User
   alias Pleroma.Web
-  alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.OStatus
   alias Pleroma.Web.WebFinger
@@ -98,8 +97,7 @@ def do_remote_follow(conn, %{
     with %User{} = user <- User.get_cached_by_nickname(username),
          true <- Pbkdf2.checkpw(password, user.password_hash),
          %User{} = _followed <- User.get_cached_by_id(id),
-         {:ok, follower} <- User.follow(user, followee),
-         {:ok, _activity} <- ActivityPub.follow(follower, followee) do
+         {:ok, _follower, _followee, _activity} <- CommonAPI.follow(user, followee) do
       conn
       |> render("followed.html", %{error: false})
     else
@@ -120,8 +118,7 @@ def do_remote_follow(conn, %{
 
   def do_remote_follow(%{assigns: %{user: user}} = conn, %{"user" => %{"id" => id}}) do
     with %User{} = followee <- User.get_cached_by_id(id),
-         {:ok, follower} <- User.follow(user, followee),
-         {:ok, _activity} <- ActivityPub.follow(follower, followee) do
+         {:ok, _follower, _followee, _activity} <- CommonAPI.follow(user, followee) do
       conn
       |> render("followed.html", %{error: false})
     else

mix.exs

@@ -4,7 +4,7 @@ defmodule Pleroma.Mixfile do
   def project do
     [
       app: :pleroma,
-      version: version("1.0.2"),
+      version: version("1.0.3"),
       elixir: "~> 1.7",
       elixirc_paths: elixirc_paths(Mix.env()),
       compilers: [:phoenix, :gettext] ++ Mix.compilers(),

test/web/ostatus/ostatus_test.exs

@@ -302,6 +302,14 @@ test "handle incoming follows" do
     assert User.following?(follower, followed)
   end
 
+  test "refuse following over OStatus if the followed's account is locked" do
+    incoming = File.read!("test/fixtures/follow.xml")
+    _user = insert(:user, info: %{locked: true}, ap_id: "https://pawoo.net/users/pekorino")
+
+    {:ok, [{:error, "It's not possible to follow locked accounts over OStatus"}]} =
+      OStatus.handle_incoming(incoming)
+  end
+
   test "handle incoming unfollows with existing follow" do
     incoming_follow = File.read!("test/fixtures/follow.xml")
     {:ok, [_activity]} = OStatus.handle_incoming(incoming_follow)
@@ -401,7 +409,7 @@ test "find_or_make_user sets all the nessary input fields" do
                }
     end
 
-    test "find_make_or_update_user takes an author element and returns an updated user" do
+    test "find_make_or_update_actor takes an author element and returns an updated user" do
       uri = "https://social.heldscal.la/user/23211"
 
       {:ok, user} = OStatus.find_or_make_user(uri)
@@ -414,14 +422,56 @@ test "find_make_or_update_user takes an author element and returns an updated us
 
       doc = XML.parse_document(File.read!("test/fixtures/23211.atom"))
       [author] = :xmerl_xpath.string('//author[1]', doc)
-      {:ok, user} = OStatus.find_make_or_update_user(author)
+      {:ok, user} = OStatus.find_make_or_update_actor(author)
       assert user.avatar["type"] == "Image"
       assert user.name == old_name
       assert user.bio == old_bio
 
-      {:ok, user_again} = OStatus.find_make_or_update_user(author)
+      {:ok, user_again} = OStatus.find_make_or_update_actor(author)
       assert user_again == user
     end
+
+    test "find_or_make_user disallows protocol downgrade" do
+      user = insert(:user, %{local: true})
+      {:ok, user} = OStatus.find_or_make_user(user.ap_id)
+
+      assert User.ap_enabled?(user)
+
+      user =
+        insert(:user, %{
+          ap_id: "https://social.heldscal.la/user/23211",
+          info: %{ap_enabled: true},
+          local: false
+        })
+
+      assert User.ap_enabled?(user)
+
+      {:ok, user} = OStatus.find_or_make_user(user.ap_id)
+      assert User.ap_enabled?(user)
+    end
+
+    test "find_make_or_update_actor disallows protocol downgrade" do
+      user = insert(:user, %{local: true})
+      {:ok, user} = OStatus.find_or_make_user(user.ap_id)
+
+      assert User.ap_enabled?(user)
+
+      user =
+        insert(:user, %{
+          ap_id: "https://social.heldscal.la/user/23211",
+          info: %{ap_enabled: true},
+          local: false
+        })
+
+      assert User.ap_enabled?(user)
+
+      {:ok, user} = OStatus.find_or_make_user(user.ap_id)
+      assert User.ap_enabled?(user)
+
+      doc = XML.parse_document(File.read!("test/fixtures/23211.atom"))
+      [author] = :xmerl_xpath.string('//author[1]', doc)
+      {:error, :invalid_protocol} = OStatus.find_make_or_update_actor(author)
+    end
   end
 
   describe "gathering user info from a user id" do