version bump to 1.0.1

Some objects were not completely rewritten in the tests, which caused object
containment violations.  Fix them by rewriting the object IDs to be in an
appropriate namespace.

CC-BY-NC-ND-4.0

@@ -1,403 +0,0 @@
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CHANGELOG.md

@@ -3,6 +3,13 @@ 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/).
 
+## [1.0.1] - 2019-07-14
+### Security
+- OStatus: fix an object spoofing vulnerability.
+
+### Added
+- MRF: Support for excluding specific domains from Transparency.
+
 ## [1.0.0] - 2019-06-29
 ### Security
 - Mastodon API: Fix display names not being sanitized

config/config.exs

@@ -237,6 +237,7 @@ config :pleroma, :instance,
     "text/bbcode"
   ],
   mrf_transparency: true,
+  mrf_transparency_exclusions: [],
   autofollowed_nicknames: [],
   max_pinned_statuses: 1,
   no_attachment_links: false,

docs/config.md

@@ -103,6 +103,7 @@ config :pleroma, Pleroma.Emails.Mailer,
 * `managed_config`: Whenether the config for pleroma-fe is configured in this config or in ``static/config.json``
 * `allowed_post_formats`: MIME-type list of formats allowed to be posted (transformed into HTML)
 * `mrf_transparency`: Make the content of your Message Rewrite Facility settings public (via nodeinfo).
+* `mrf_transparency_exclusions`: Exclude specific instance names from MRF transparency.  The use of the exclusions feature will be disclosed in nodeinfo as a boolean value.
 * `scope_copy`: Copy the scope (private/unlisted/public) in replies to posts by default.
 * `subject_line_behavior`: Allows changing the default behaviour of subject lines in replies. Valid values:
   * "email": Copy and preprend re:, as in email.

docs/installation/migrating_from_source_otp_en.md

@@ -49,7 +49,7 @@ mkdir -p /var/lib/pleroma/static
 chown -R pleroma /var/lib/pleroma
 
 # If you use the local uploader with default settings your uploads should be located in `~pleroma/uploads`
-mv ~pleroma/uploads /var/lib/pleroma/uploads
+mv ~pleroma/uploads/* /var/lib/pleroma/uploads
 
 # If you have created the custom public files directory with default settings it should be located in `~pleroma/instance/static`
 mv ~pleroma/instance/static /var/lib/pleroma/static
@@ -122,13 +122,15 @@ su pleroma -s $SHELL -lc "./bin/pleroma stop"
 ## Setting up a system service
 OTP releases have different service files than from-source installs so they need to be copied over again.
 
+**Warning:** The service files assume pleroma user's home directory is `/opt/pleroma`, please make sure all paths fit your installation.
+
 Debian/Ubuntu:
 ```sh
 # Copy the service into a proper directory
 cp ~pleroma/installation/pleroma.service /etc/systemd/system/pleroma.service
 
 # Reload service files
-systemctl reload-daemon
+systemctl daemon-reload
 
 # Reenable pleroma to start on boot
 systemctl reenable pleroma

lib/pleroma/object/containment.ex

@@ -48,6 +48,9 @@ defmodule Pleroma.Object.Containment do
     end
   end
 
+  def contain_origin(id, %{"attributedTo" => actor} = params),
+    do: contain_origin(id, Map.put(params, "actor", actor))
+
   def contain_origin_from_id(_id, %{"id" => nil}), do: :error
 
   def contain_origin_from_id(id, %{"id" => other_id} = _params) do
@@ -60,4 +63,9 @@ defmodule Pleroma.Object.Containment do
       :error
     end
   end
+
+  def contain_child(%{"object" => %{"id" => id, "attributedTo" => _} = object}),
+    do: contain_origin(id, object)
+
+  def contain_child(_), do: :ok
 end

lib/pleroma/object/fetcher.ex

@@ -28,33 +28,39 @@ defmodule Pleroma.Object.Fetcher do
     else
       Logger.info("Fetching #{id} via AP")
 
-      with {:ok, data} <- fetch_and_contain_remote_object_from_id(id),
-           nil <- Object.normalize(data, false),
+      with {:fetch, {:ok, data}} <- {:fetch, fetch_and_contain_remote_object_from_id(id)},
+           {:normalize, nil} <- {:normalize, Object.normalize(data, false)},
            params <- %{
              "type" => "Create",
              "to" => data["to"],
              "cc" => data["cc"],
+             # Should we seriously keep this attributedTo thing?
              "actor" => data["actor"] || data["attributedTo"],
              "object" => data
            },
-           :ok <- Containment.contain_origin(id, params),
+           {:containment, :ok} <- {:containment, Containment.contain_origin(id, params)},
            {:ok, activity} <- Transmogrifier.handle_incoming(params),
            {:object, _data, %Object{} = object} <-
              {:object, data, Object.normalize(activity, false)} do
         {:ok, object}
       else
+        {:containment, _} ->
+          {:error, "Object containment failed."}
+
         {:error, {:reject, nil}} ->
           {:reject, nil}
 
         {:object, data, nil} ->
           reinject_object(data)
 
-        object = %Object{} ->
+        {:normalize, object = %Object{}} ->
           {:ok, object}
 
         _e ->
+          # Only fallback when receiving a fetch/normalization error with ActivityPub
           Logger.info("Couldn't get object via AP, trying out OStatus fetching...")
 
+          # FIXME: OStatus Object Containment?
           case OStatus.fetch_activity_from_url(id) do
             {:ok, [activity | _]} -> {:ok, Object.normalize(activity, false)}
             e -> e

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -8,6 +8,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   alias Pleroma.Conversation
   alias Pleroma.Notification
   alias Pleroma.Object
+  alias Pleroma.Object.Containment
   alias Pleroma.Object.Fetcher
   alias Pleroma.Pagination
   alias Pleroma.Repo
@@ -126,6 +127,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
          {:ok, map} <- MRF.filter(map),
          {recipients, _, _} = get_recipients(map),
          {:fake, false, map, recipients} <- {:fake, fake, map, recipients},
+         :ok <- Containment.contain_child(map),
          {:ok, map, object} <- insert_full_object(map) do
       {:ok, activity} =
         Repo.insert(%Activity{

lib/pleroma/web/nodeinfo/nodeinfo_controller.ex

@@ -34,8 +34,11 @@ defmodule Pleroma.Web.Nodeinfo.NodeinfoController do
   def raw_nodeinfo do
     stats = Stats.get_stats()
 
+    exclusions = Config.get([:instance, :mrf_transparency_exclusions])
+
     mrf_simple =
       Config.get(:mrf_simple)
+      |> Enum.map(fn {k, v} -> {k, Enum.reject(v, fn v -> v in exclusions end)} end)
       |> Enum.into(%{})
 
     # This horror is needed to convert regex sigils to strings
@@ -86,7 +89,8 @@ defmodule Pleroma.Web.Nodeinfo.NodeinfoController do
           mrf_simple: mrf_simple,
           mrf_keyword: mrf_keyword,
           mrf_user_allowlist: mrf_user_allowlist,
-          quarantined_instances: quarantined
+          quarantined_instances: quarantined,
+          exclusions: length(exclusions) > 0
         }
       else
         %{}

mix.exs

@@ -4,7 +4,7 @@ defmodule Pleroma.Mixfile do
   def project do
     [
       app: :pleroma,
-      version: version("1.0.0"),
+      version: version("1.0.1"),
       elixir: "~> 1.7",
       elixirc_paths: elixirc_paths(Mix.env()),
       compilers: [:phoenix, :gettext] ++ Mix.compilers(),

test/object/containment_test.exs

@@ -64,4 +64,34 @@ defmodule Pleroma.Object.ContainmentTest do
                "[error] Could not decode user at fetch https://n1u.moe/users/rye, {:error, :error}"
     end
   end
+
+  describe "containment of children" do
+    test "contain_child() catches spoofing attempts" do
+      data = %{
+        "id" => "http://example.com/whatever",
+        "type" => "Create",
+        "object" => %{
+          "id" => "http://example.net/~alyssa/activities/1234",
+          "attributedTo" => "http://example.org/~alyssa"
+        },
+        "actor" => "http://example.com/~bob"
+      }
+
+      :error = Containment.contain_child(data)
+    end
+
+    test "contain_child() allows correct origins" do
+      data = %{
+        "id" => "http://example.org/~alyssa/activities/5678",
+        "type" => "Create",
+        "object" => %{
+          "id" => "http://example.org/~alyssa/activities/1234",
+          "attributedTo" => "http://example.org/~alyssa"
+        },
+        "actor" => "http://example.org/~alyssa"
+      }
+
+      :ok = Containment.contain_child(data)
+    end
+  end
 end

test/object/fetcher_test.exs

@@ -5,6 +5,7 @@ defmodule Pleroma.Object.FetcherTest do
   alias Pleroma.Object
   alias Pleroma.Object.Fetcher
   import Tesla.Mock
+  import Mock
 
   setup do
     mock(fn
@@ -22,16 +23,31 @@ defmodule Pleroma.Object.FetcherTest do
   end
 
   describe "actor origin containment" do
-    test "it rejects objects with a bogus origin" do
+    test_with_mock "it rejects objects with a bogus origin",
+                   Pleroma.Web.OStatus,
+                   [:passthrough],
+                   [] do
       {:error, _} = Fetcher.fetch_object_from_id("https://info.pleroma.site/activity.json")
+
+      refute called(Pleroma.Web.OStatus.fetch_activity_from_url(:_))
     end
 
-    test "it rejects objects when attributedTo is wrong (variant 1)" do
+    test_with_mock "it rejects objects when attributedTo is wrong (variant 1)",
+                   Pleroma.Web.OStatus,
+                   [:passthrough],
+                   [] do
       {:error, _} = Fetcher.fetch_object_from_id("https://info.pleroma.site/activity2.json")
+
+      refute called(Pleroma.Web.OStatus.fetch_activity_from_url(:_))
     end
 
-    test "it rejects objects when attributedTo is wrong (variant 2)" do
+    test_with_mock "it rejects objects when attributedTo is wrong (variant 2)",
+                   Pleroma.Web.OStatus,
+                   [:passthrough],
+                   [] do
       {:error, _} = Fetcher.fetch_object_from_id("https://info.pleroma.site/activity3.json")
+
+      refute called(Pleroma.Web.OStatus.fetch_activity_from_url(:_))
     end
   end
 

test/support/http_request_mock.ex

@@ -798,6 +798,81 @@ defmodule HttpRequestMock do
      }}
   end
 
+  def get(
+        "https://zetsubou.xn--q9jyb4c/.well-known/webfinger?resource=lain@zetsubou.xn--q9jyb4c",
+        _,
+        _,
+        Accept: "application/xrd+xml,application/jrd+json"
+      ) do
+    {:ok,
+     %Tesla.Env{
+       status: 200,
+       body: File.read!("test/fixtures/lain.xml")
+     }}
+  end
+
+  def get(
+        "https://zetsubou.xn--q9jyb4c/.well-known/webfinger?resource=https://zetsubou.xn--q9jyb4c/users/lain",
+        _,
+        _,
+        Accept: "application/xrd+xml,application/jrd+json"
+      ) do
+    {:ok,
+     %Tesla.Env{
+       status: 200,
+       body: File.read!("test/fixtures/lain.xml")
+     }}
+  end
+
+  def get(
+        "https://zetsubou.xn--q9jyb4c/.well-known/host-meta",
+        _,
+        _,
+        _
+      ) do
+    {:ok,
+     %Tesla.Env{
+       status: 200,
+       body: File.read!("test/fixtures/host-meta-zetsubou.xn--q9jyb4c.xml")
+     }}
+  end
+
+  def get("https://info.pleroma.site/activity.json", _, _, Accept: "application/activity+json") do
+    {:ok,
+     %Tesla.Env{
+       status: 200,
+       body: File.read!("test/fixtures/httpoison_mock/https__info.pleroma.site_activity.json")
+     }}
+  end
+
+  def get("https://info.pleroma.site/activity.json", _, _, _) do
+    {:ok, %Tesla.Env{status: 404, body: ""}}
+  end
+
+  def get("https://info.pleroma.site/activity2.json", _, _, Accept: "application/activity+json") do
+    {:ok,
+     %Tesla.Env{
+       status: 200,
+       body: File.read!("test/fixtures/httpoison_mock/https__info.pleroma.site_activity2.json")
+     }}
+  end
+
+  def get("https://info.pleroma.site/activity2.json", _, _, _) do
+    {:ok, %Tesla.Env{status: 404, body: ""}}
+  end
+
+  def get("https://info.pleroma.site/activity3.json", _, _, Accept: "application/activity+json") do
+    {:ok,
+     %Tesla.Env{
+       status: 200,
+       body: File.read!("test/fixtures/httpoison_mock/https__info.pleroma.site_activity3.json")
+     }}
+  end
+
+  def get("https://info.pleroma.site/activity3.json", _, _, _) do
+    {:ok, %Tesla.Env{status: 404, body: ""}}
+  end
+
   def get(url, query, body, headers) do
     {:error,
      "Not implemented the mock response for get #{inspect(url)}, #{query}, #{inspect(body)}, #{

test/web/activity_pub/transmogrifier_test.exs

@@ -390,6 +390,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
         |> Map.put("attributedTo", user.ap_id)
         |> Map.put("to", ["https://www.w3.org/ns/activitystreams#Public"])
         |> Map.put("cc", [])
+        |> Map.put("id", user.ap_id <> "/activities/12345678")
 
       data = Map.put(data, "object", object)
 
@@ -413,6 +414,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
         |> Map.put("attributedTo", user.ap_id)
         |> Map.put("to", nil)
         |> Map.put("cc", nil)
+        |> Map.put("id", user.ap_id <> "/activities/12345678")
 
       data = Map.put(data, "object", object)
 

test/web/node_info_test.exs

@@ -83,4 +83,47 @@ defmodule Pleroma.Web.NodeInfoTest do
 
     Pleroma.Config.put([:instance, :safe_dm_mentions], option)
   end
+
+  test "it shows MRF transparency data if enabled", %{conn: conn} do
+    option = Pleroma.Config.get([:instance, :mrf_transparency])
+    Pleroma.Config.put([:instance, :mrf_transparency], true)
+
+    simple_config = %{"reject" => ["example.com"]}
+    Pleroma.Config.put(:mrf_simple, simple_config)
+
+    response =
+      conn
+      |> get("/nodeinfo/2.1.json")
+      |> json_response(:ok)
+
+    assert response["metadata"]["federation"]["mrf_simple"] == simple_config
+
+    Pleroma.Config.put([:instance, :mrf_transparency], option)
+    Pleroma.Config.put(:mrf_simple, %{})
+  end
+
+  test "it performs exclusions from MRF transparency data if configured", %{conn: conn} do
+    option = Pleroma.Config.get([:instance, :mrf_transparency])
+    Pleroma.Config.put([:instance, :mrf_transparency], true)
+
+    exclusions = Pleroma.Config.get([:instance, :mrf_transparency_exclusions])
+    Pleroma.Config.put([:instance, :mrf_transparency_exclusions], ["other.site"])
+
+    simple_config = %{"reject" => ["example.com", "other.site"]}
+    expected_config = %{"reject" => ["example.com"]}
+
+    Pleroma.Config.put(:mrf_simple, simple_config)
+
+    response =
+      conn
+      |> get("/nodeinfo/2.1.json")
+      |> json_response(:ok)
+
+    assert response["metadata"]["federation"]["mrf_simple"] == expected_config
+    assert response["metadata"]["federation"]["exclusions"] == true
+
+    Pleroma.Config.put([:instance, :mrf_transparency], option)
+    Pleroma.Config.put([:instance, :mrf_transparency_exclusions], exclusions)
+    Pleroma.Config.put(:mrf_simple, %{})
+  end
 end