Merge branch 'release/1.0.1' into 'master'

1.0.1 release

See merge request pleroma/pleroma!1420

13 files changed, 203 insertions, 411 deletions

diff --git a/CC-BY-NC-ND-4.0 b/CC-BY-NC-ND-4.0
deleted file mode 100644
index 486544290..000000000
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+++ /dev/null
@@ -1,403 +0,0 @@
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diff --git a/CHANGELOG.md b/CHANGELOG.md
index a65988991..9931131b3 100644
--- a/CHANGELOG.md
+++ b/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
diff --git a/config/config.exs b/config/config.exs
index e337f00aa..05f67abb2 100644
--- a/config/config.exs
+++ b/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,
diff --git a/docs/config.md b/docs/config.md
index 7a53364ef..22799af23 100644
--- a/docs/config.md
+++ b/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.
diff --git a/lib/pleroma/object/containment.ex b/lib/pleroma/object/containment.ex
index ada9da0bb..f077a9f32 100644
--- a/lib/pleroma/object/containment.ex
+++ b/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
diff --git a/lib/pleroma/object/fetcher.ex b/lib/pleroma/object/fetcher.ex
index c422490ac..3c137836c 100644
--- a/lib/pleroma/object/fetcher.ex
+++ b/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
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 55315d66e..fd5521c98 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/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{
diff --git a/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex b/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
index 32be430b7..dc4858e43 100644
--- a/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
+++ b/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
         %{}
diff --git a/test/object/containment_test.exs b/test/object/containment_test.exs
index a860355b8..455415fcd 100644
--- a/test/object/containment_test.exs
+++ b/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
diff --git a/test/object/fetcher_test.exs b/test/object/fetcher_test.exs
index 26dc9496d..4ab502a38 100644
--- a/test/object/fetcher_test.exs
+++ b/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
 
diff --git a/test/support/http_request_mock.ex b/test/support/http_request_mock.ex
index 30169edb0..0158314b0 100644
--- a/test/support/http_request_mock.ex
+++ b/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)}, #{
diff --git a/test/web/activity_pub/transmogrifier_test.exs b/test/web/activity_pub/transmogrifier_test.exs
index 68ec03c33..5a7b1ed80 100644
--- a/test/web/activity_pub/transmogrifier_test.exs
+++ b/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)
 
diff --git a/test/web/node_info_test.exs b/test/web/node_info_test.exs
index be1173513..d7f848bfa 100644
--- a/test/web/node_info_test.exs
+++ b/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