From d6d5f46baea90e9b8a305a010457ac6d404d8829 Mon Sep 17 00:00:00 2001
From: Mark Felder <feld@FreeBSD.org>
Date: Thu, 11 Apr 2019 16:02:38 +0000
Subject: [PATCH 01/21] Update OAuth web template

---
 lib/pleroma/web/templates/layout/app.html.eex | 45 ++++++++++++---
 .../web/templates/o_auth/o_auth/show.html.eex | 57 ++++++++++++++-----
 2 files changed, 79 insertions(+), 23 deletions(-)

diff --git a/lib/pleroma/web/templates/layout/app.html.eex b/lib/pleroma/web/templates/layout/app.html.eex
index 8333bc9217..7d2d609d13 100644
--- a/lib/pleroma/web/templates/layout/app.html.eex
+++ b/lib/pleroma/web/templates/layout/app.html.eex
@@ -63,13 +63,14 @@
 
       .scopes-input {
         display: flex;
+        flex-direction: column;
         margin-top: 1em;
         text-align: left;
         color: #89898a;
       }
 
       .scopes-input label:first-child {
-        flex-basis: 40%;
+        height: 2em;
       }
 
       .scopes {
@@ -80,13 +81,22 @@
       }
 
       .scope {
-        flex-basis: 100%;
         display: flex;
+        flex-basis: 100%;
         height: 2em;
         align-items: center;
       }
 
+      .scope:before {
+        color: #b9b9ba;
+        content: "✔";
+        margin-left: 1em;
+        margin-right: 1em;
+      }
+
       [type="checkbox"] + label {
+        display: none;
+        cursor: pointer;
         margin: 0.5em;
       }
 
@@ -95,10 +105,12 @@
       }
 
       [type="checkbox"] + label:before {
+        cursor: pointer;
         display: inline-block;
         color: white;
         background-color: #121a24;
         border: 4px solid #121a24;
+        box-shadow: 0px 0px 1px 0 #d8a070;
         box-sizing: border-box;
         width: 1.2em;
         height: 1.2em;
@@ -128,7 +140,8 @@
         border-radius: 4px;
         border: none;
         padding: 10px;
-        margin-top: 30px;
+        margin-top: 20px;
+        margin-bottom: 20px;
         text-transform: uppercase;
         font-size: 16px;
         box-shadow: 0px 0px 2px 0px black,
@@ -147,8 +160,9 @@
         box-sizing: border-box;
         width: 100%;
         background-color: #931014;
+        border: 1px solid #a06060;
+        color: #902020;
         border-radius: 4px;
-        border: none;
         padding: 10px;
         margin-top: 20px;
         font-weight: 500;
@@ -171,12 +185,27 @@
           margin-top: 0
         }
 
-        .scopes-input {
-          flex-direction: column;
+        .scope {
+          flex-basis: 0%;
         }
 
-        .scope {
-          flex-basis: 50%;
+        .scope:before {
+          content: "";
+          margin-left: 0em;
+          margin-right: 1em;
+        }
+
+        .scope:first-child:before {
+          margin-left: 1em;
+          content: "✔";
+        }
+
+        .scope:after {
+          content: ",";
+        }
+
+        .scope:last-child:after {
+          content: "";
         }
       }
     </style>
diff --git a/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex b/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
index 87278e636c..c7b4ef7922 100644
--- a/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
+++ b/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
@@ -6,26 +6,53 @@
 <% end %>
 
 <h2>OAuth Authorization</h2>
-
 <%= form_for @conn, o_auth_path(@conn, :authorize), [as: "authorization"], fn f -> %>
-<div class="input">
-  <%= label f, :name, "Name or email" %>
-  <%= text_input f, :name %>
-</div>
-<div class="input">
-  <%= label f, :password, "Password" %>
-  <%= password_input f, :password %>
-</div>
 
-<%= render @view_module, "_scopes.html", Map.merge(assigns, %{form: f, scope_param: "authorization[scope][]"}) %>
+<%= if @params["registration"] in ["true", true] do %>
+  <h3>This is the first time you visit! Please enter your Pleroma handle.</h3>
+  <p>Choose carefully! You won't be able to change this later. You will be able to change your display name, though.</p>
+  <p>Please only use lowercase letters and no special characters</p>
+  <div class="input">
+    <%= label f, :nickname, "Pleroma Handle" %>
+    <%= text_input f, :nickname, placeholder: "lain" %>
+  </div>
+  <%= hidden_input f, :name, value: @params["name"] %>
+  <%= hidden_input f, :password, value: @params["password"] %>
+  <br>
+
+<% else %>
+  <div class="input">
+    <%= label f, :name, "Username" %>
+    <%= text_input f, :name %>
+  </div>
+  <div class="input">
+    <%= label f, :password, "Password" %>
+    <%= password_input f, :password %>
+  </div>
+  <%= submit "Log In" %>
+  <div class="scopes-input">
+    <%= label f, :scope, "The following permissions will be granted" %>
+    <div class="scopes">
+      <%= for scope <- @available_scopes do %>
+        <%# Note: using hidden input with `unchecked_value` in order to distinguish user's empty selection from `scope` param being omitted %>
+        <%= if scope in @scopes do %>
+          <div class="scope">
+            <%= checkbox f, :"scope_#{scope}", value: scope in @scopes && scope, checked_value: scope, unchecked_value: "", name: "authorization[scope][]" %>
+            <%= label f, :"scope_#{scope}", String.capitalize(scope) %>
+            <%= if scope in @scopes && scope do %>
+              <%= String.capitalize(scope) %>
+            <% end %>
+          </div>
+        <% else %>
+          <%= checkbox f, :"scope_#{scope}", value: scope in @scopes && scope, checked_value: scope, unchecked_value: "", name: "authorization[scope][]" %>
+        <% end %>
+      <% end %>
+    </div>
+  </div>
+<% end %>
 
 <%= hidden_input f, :client_id, value: @client_id %>
 <%= hidden_input f, :response_type, value: @response_type %>
 <%= hidden_input f, :redirect_uri, value: @redirect_uri %>
 <%= hidden_input f, :state, value: @state %>
-<%= submit "Authorize" %>
-<% end %>
-
-<%= if Pleroma.Config.oauth_consumer_enabled?() do %>
-  <%= render @view_module, Pleroma.Web.Auth.Authenticator.oauth_consumer_template(), assigns %>
 <% end %>

From 9a98f48ec3f438e543a5a621624401bb22a0d44a Mon Sep 17 00:00:00 2001
From: Mark Felder <feld@FreeBSD.org>
Date: Wed, 1 May 2019 12:29:48 -0500
Subject: [PATCH 02/21] Remove incorrect statement about valid characters

---
 lib/pleroma/web/templates/o_auth/o_auth/show.html.eex | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex b/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
index c7b4ef7922..45f2b5cc07 100644
--- a/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
+++ b/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
@@ -11,7 +11,6 @@
 <%= if @params["registration"] in ["true", true] do %>
   <h3>This is the first time you visit! Please enter your Pleroma handle.</h3>
   <p>Choose carefully! You won't be able to change this later. You will be able to change your display name, though.</p>
-  <p>Please only use lowercase letters and no special characters</p>
   <div class="input">
     <%= label f, :nickname, "Pleroma Handle" %>
     <%= text_input f, :nickname, placeholder: "lain" %>

From eb2963bc43f2cb195c2f19e6081c3faa6375fe4e Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Fri, 31 May 2019 14:27:15 +0200
Subject: [PATCH 03/21] User: Add settings store to Info, AccountView

This is to provide a generic frontend settings storage mechanism for all kinds
of frontends.
---
 lib/pleroma/user/info.ex                          |  1 +
 .../web/mastodon_api/views/account_view.ex        | 10 ++++++++++
 test/web/mastodon_api/account_view_test.exs       | 15 +++++++++++++++
 3 files changed, 26 insertions(+)

diff --git a/lib/pleroma/user/info.ex b/lib/pleroma/user/info.ex
index 6397e2737b..e6623160d0 100644
--- a/lib/pleroma/user/info.ex
+++ b/lib/pleroma/user/info.ex
@@ -45,6 +45,7 @@ defmodule Pleroma.User.Info do
     field(:flavour, :string, default: nil)
     field(:mascot, :map, default: nil)
     field(:emoji, {:array, :map}, default: [])
+    field(:pleroma_settings_store, :map, default: %{})
 
     field(:notification_settings, :map,
       default: %{"remote" => true, "local" => true, "followers" => true, "follows" => true}
diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex
index b82d3319b4..04d4853409 100644
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@@ -130,6 +130,7 @@ defp do_render("account.json", %{user: user} = opts) do
     |> maybe_put_role(user, opts[:for])
     |> maybe_put_settings(user, opts[:for], user_info)
     |> maybe_put_notification_settings(user, opts[:for])
+    |> maybe_put_settings_store(user, opts[:for], opts)
   end
 
   defp username_from_nickname(string) when is_binary(string) do
@@ -152,6 +153,15 @@ defp maybe_put_settings(
 
   defp maybe_put_settings(data, _, _, _), do: data
 
+  defp maybe_put_settings_store(data, %User{info: info, id: id}, %User{id: id}, %{
+         with_pleroma_settings: true
+       }) do
+    data
+    |> Kernel.put_in([:pleroma, :settings], info.pleroma_settings_store)
+  end
+
+  defp maybe_put_settings_store(data, _, _, _), do: data
+
   defp maybe_put_role(data, %User{info: %{show_role: true}} = user, _) do
     data
     |> Kernel.put_in([:pleroma, :is_admin], user.info.is_admin)
diff --git a/test/web/mastodon_api/account_view_test.exs b/test/web/mastodon_api/account_view_test.exs
index aaf2261bbd..ca73d6581a 100644
--- a/test/web/mastodon_api/account_view_test.exs
+++ b/test/web/mastodon_api/account_view_test.exs
@@ -239,4 +239,19 @@ test "represent an embedded relationship" do
 
     assert expected == AccountView.render("account.json", %{user: user, for: other_user})
   end
+
+  test "returns the settings store if the requesting user is the represented user and it's requested specifically" do
+    user = insert(:user, %{info: %User.Info{pleroma_settings_store: %{fe: "test"}}})
+
+    result =
+      AccountView.render("account.json", %{user: user, for: user, with_pleroma_settings: true})
+
+    assert result.pleroma.settings == %{:fe => "test"}
+
+    result = AccountView.render("account.json", %{user: user, with_pleroma_settings: true})
+    assert result.pleroma[:settings] == nil
+
+    result = AccountView.render("account.json", %{user: user, for: user})
+    assert result.pleroma[:settings] == nil
+  end
 end

From aaad85c4d908dd14c1d836ebe2a5302cfdfaff2e Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Fri, 31 May 2019 14:49:46 +0200
Subject: [PATCH 04/21] AccountView: settings -> settings_store

---
 lib/pleroma/web/mastodon_api/views/account_view.ex | 2 +-
 test/web/mastodon_api/account_view_test.exs        | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex
index 04d4853409..dc32a15254 100644
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@@ -157,7 +157,7 @@ defp maybe_put_settings_store(data, %User{info: info, id: id}, %User{id: id}, %{
          with_pleroma_settings: true
        }) do
     data
-    |> Kernel.put_in([:pleroma, :settings], info.pleroma_settings_store)
+    |> Kernel.put_in([:pleroma, :settings_store], info.pleroma_settings_store)
   end
 
   defp maybe_put_settings_store(data, _, _, _), do: data
diff --git a/test/web/mastodon_api/account_view_test.exs b/test/web/mastodon_api/account_view_test.exs
index ca73d6581a..5e6f1d00b7 100644
--- a/test/web/mastodon_api/account_view_test.exs
+++ b/test/web/mastodon_api/account_view_test.exs
@@ -246,12 +246,12 @@ test "returns the settings store if the requesting user is the represented user
     result =
       AccountView.render("account.json", %{user: user, for: user, with_pleroma_settings: true})
 
-    assert result.pleroma.settings == %{:fe => "test"}
+    assert result.pleroma.settings_store == %{:fe => "test"}
 
     result = AccountView.render("account.json", %{user: user, with_pleroma_settings: true})
-    assert result.pleroma[:settings] == nil
+    assert result.pleroma[:settings_store] == nil
 
     result = AccountView.render("account.json", %{user: user, for: user})
-    assert result.pleroma[:settings] == nil
+    assert result.pleroma[:settings_store] == nil
   end
 end

From 7861974ab2cda55a97992f76e48ed082b234a7cf Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Fri, 31 May 2019 14:50:18 +0200
Subject: [PATCH 05/21] MastodonAPI: Add extension to set and get
 pleroma_settings_store.

---
 lib/pleroma/user/info.ex                      |  3 +-
 .../mastodon_api/mastodon_api_controller.ex   | 12 +++-
 .../mastodon_api_controller_test.exs          | 60 +++++++++++++++++++
 3 files changed, 72 insertions(+), 3 deletions(-)

diff --git a/lib/pleroma/user/info.ex b/lib/pleroma/user/info.ex
index e6623160d0..37cdf2fa76 100644
--- a/lib/pleroma/user/info.ex
+++ b/lib/pleroma/user/info.ex
@@ -210,7 +210,8 @@ def profile_update(info, params) do
       :hide_followers,
       :hide_favorites,
       :background,
-      :show_role
+      :show_role,
+      :pleroma_settings_store
     ])
   end
 
diff --git a/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex b/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
index 2110027c3d..ce3e149ccc 100644
--- a/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
+++ b/lib/pleroma/web/mastodon_api/mastodon_api_controller.ex
@@ -124,6 +124,9 @@ def update_credentials(%{assigns: %{user: user}} = conn, params) do
         end)
       end)
       |> add_if_present(params, "default_scope", :default_scope)
+      |> add_if_present(params, "pleroma_settings_store", :pleroma_settings_store, fn value ->
+        {:ok, Map.merge(user.info.pleroma_settings_store, value)}
+      end)
       |> add_if_present(params, "header", :banner, fn value ->
         with %Plug.Upload{} <- value,
              {:ok, object} <- ActivityPub.upload(value, type: :banner) do
@@ -143,7 +146,10 @@ def update_credentials(%{assigns: %{user: user}} = conn, params) do
         CommonAPI.update(user)
       end
 
-      json(conn, AccountView.render("account.json", %{user: user, for: user}))
+      json(
+        conn,
+        AccountView.render("account.json", %{user: user, for: user, with_pleroma_settings: true})
+      )
     else
       _e ->
         conn
@@ -153,7 +159,9 @@ def update_credentials(%{assigns: %{user: user}} = conn, params) do
   end
 
   def verify_credentials(%{assigns: %{user: user}} = conn, _) do
-    account = AccountView.render("account.json", %{user: user, for: user})
+    account =
+      AccountView.render("account.json", %{user: user, for: user, with_pleroma_settings: true})
+
     json(conn, account)
   end
 
diff --git a/test/web/mastodon_api/mastodon_api_controller_test.exs b/test/web/mastodon_api/mastodon_api_controller_test.exs
index 93ef630f29..59a7967bd1 100644
--- a/test/web/mastodon_api/mastodon_api_controller_test.exs
+++ b/test/web/mastodon_api/mastodon_api_controller_test.exs
@@ -2322,6 +2322,66 @@ test "hides favorites for new users by default", %{conn: conn, current_user: cur
   end
 
   describe "updating credentials" do
+    test "sets user settings in a generic way", %{conn: conn} do
+      user = insert(:user)
+
+      res_conn =
+        conn
+        |> assign(:user, user)
+        |> patch("/api/v1/accounts/update_credentials", %{
+          "pleroma_settings_store" => %{
+            pleroma_fe: %{
+              theme: "bla"
+            }
+          }
+        })
+
+      assert user = json_response(res_conn, 200)
+      assert user["pleroma"]["settings_store"] == %{"pleroma_fe" => %{"theme" => "bla"}}
+
+      user = Repo.get(User, user["id"])
+
+      res_conn =
+        conn
+        |> assign(:user, user)
+        |> patch("/api/v1/accounts/update_credentials", %{
+          "pleroma_settings_store" => %{
+            masto_fe: %{
+              theme: "bla"
+            }
+          }
+        })
+
+      assert user = json_response(res_conn, 200)
+
+      assert user["pleroma"]["settings_store"] ==
+               %{
+                 "pleroma_fe" => %{"theme" => "bla"},
+                 "masto_fe" => %{"theme" => "bla"}
+               }
+
+      user = Repo.get(User, user["id"])
+
+      res_conn =
+        conn
+        |> assign(:user, user)
+        |> patch("/api/v1/accounts/update_credentials", %{
+          "pleroma_settings_store" => %{
+            masto_fe: %{
+              theme: "blub"
+            }
+          }
+        })
+
+      assert user = json_response(res_conn, 200)
+
+      assert user["pleroma"]["settings_store"] ==
+               %{
+                 "pleroma_fe" => %{"theme" => "bla"},
+                 "masto_fe" => %{"theme" => "blub"}
+               }
+    end
+
     test "updates the user's bio", %{conn: conn} do
       user = insert(:user)
       user2 = insert(:user)

From 10fe02acefca47e6013c4b0f70e4077a6d59d488 Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Fri, 31 May 2019 14:58:28 +0200
Subject: [PATCH 06/21] Documentation: Document Settings store mechanism.

---
 docs/api/differences_in_mastoapi_responses.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docs/api/differences_in_mastoapi_responses.md b/docs/api/differences_in_mastoapi_responses.md
index 36b47608e1..21c1b76e58 100644
--- a/docs/api/differences_in_mastoapi_responses.md
+++ b/docs/api/differences_in_mastoapi_responses.md
@@ -43,6 +43,7 @@ Has these additional fields under the `pleroma` object:
 - `confirmation_pending`: boolean, true if a new user account is waiting on email confirmation to be activated
 - `hide_followers`: boolean, true when the user has follower hiding enabled
 - `hide_follows`: boolean, true when the user has follow hiding enabled
+- `settings_store`: A generic map of settings for frontends. Opaque to the backend. Only returned in `verify_credentials` and `update_credentials`
 
 ### Source
 
@@ -80,6 +81,14 @@ Additional parameters can be added to the JSON body/Form data:
 - `hide_favorites` - if true, user's favorites timeline will be hidden
 - `show_role` - if true, user's role (e.g admin, moderator) will be exposed to anyone in the API
 - `default_scope` - the scope returned under `privacy` key in Source subentity
+- `pleroma_settings_store` - Opaque user settings to be saved on the backend.
+
+### Pleroma Settings Store
+Pleroma has mechanism that allows frontends to save blobs of json for each user on the backend. This can be used to save frontend-specific settings for a user that the backend does not need to know about.
+
+The parameter should have a form of `{frontend_name: {...}}`, with `frontend_name` identifying your type of client, e.g. `pleroma_fe`. It will overwrite everything under this property, but will not overwrite other frontend's settings.
+
+This information is returned in the `verify_credentials` endpoint.
 
 ## Authentication
 

From 7591a8928d7ca440dbc2d45428988208ef617bdc Mon Sep 17 00:00:00 2001
From: lain <lain@soykaf.club>
Date: Fri, 31 May 2019 19:15:44 +0200
Subject: [PATCH 07/21] Setting Store: Document in changelog.

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4abb6eb8e..f8ed529aea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [unreleased]
 ### Added
+- Add a generic settings store for frontends / clients to use.
 - Optional SSH access mode. (Needs `erlang-ssh` package on some distributions).
 - [MongooseIM](https://github.com/esl/MongooseIM) http authentication support.
 - LDAP authentication

From edf772d41ea7b44d7286e442061e94a347167be2 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Sun, 2 Jun 2019 09:44:42 +0000
Subject: [PATCH 08/21] mrf: allow a policy chain to be specified when
 filtering

---
 lib/pleroma/web/activity_pub/mrf.ex | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/mrf.ex b/lib/pleroma/web/activity_pub/mrf.ex
index 3bf7955f32..10ceef715f 100644
--- a/lib/pleroma/web/activity_pub/mrf.ex
+++ b/lib/pleroma/web/activity_pub/mrf.ex
@@ -5,8 +5,8 @@
 defmodule Pleroma.Web.ActivityPub.MRF do
   @callback filter(Map.t()) :: {:ok | :reject, Map.t()}
 
-  def filter(object) do
-    get_policies()
+  def filter(policies, %{} = object) do
+    policies
     |> Enum.reduce({:ok, object}, fn
       policy, {:ok, object} ->
         policy.filter(object)
@@ -16,6 +16,8 @@ def filter(object) do
     end)
   end
 
+  def filter(%{} = object), do: get_policies() |> filter(object)
+
   def get_policies do
     Pleroma.Config.get([:instance, :rewrite_policy], []) |> get_policies()
   end

From 4087ccdab8fc906fb7029e8f98651555e40fea4f Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Sun, 2 Jun 2019 09:50:16 +0000
Subject: [PATCH 09/21] mrf: add subchain policy

---
 config/config.exs                             |  3 ++
 .../web/activity_pub/mrf/subchain_policy.ex   | 36 +++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 lib/pleroma/web/activity_pub/mrf/subchain_policy.ex

diff --git a/config/config.exs b/config/config.exs
index 68168b2796..450da89304 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -320,6 +320,9 @@
   federated_timeline_removal: [],
   replace: []
 
+config :pleroma, :mrf_subchain,
+  match_actor: %{}
+
 config :pleroma, :rich_media, enabled: true
 
 config :pleroma, :media_proxy,
diff --git a/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex b/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
new file mode 100644
index 0000000000..7fb4a607e8
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
@@ -0,0 +1,36 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.SubchainPolicy do
+  alias Pleroma.Config
+  alias Pleroma.Web.ActivityPub.MRF
+
+  require Logger
+
+  @behaviour MRF
+
+  defp lookup_subchain(actor) do
+    with matches <- Config.get([:mrf_subchain, :match_actor]),
+         {match, subchain} <- Enum.find(matches, fn {k, _v} -> String.match?(actor, k) end) do
+      {:ok, match, subchain}
+    else
+      _e -> {:error, :notfound}
+    end
+  end
+
+  @impl true
+  def filter(%{"actor" => actor} = message) do
+    with {:ok, match, subchain} <- lookup_subchain(actor) do
+      Logger.debug("[SubchainPolicy] Matched #{actor} against #{inspect(match)} with subchain #{inspect(subchain)}")
+
+      subchain
+      |> MRF.filter(message)
+    else
+      _e -> {:ok, message}
+    end
+  end
+
+  @impl true
+  def filter(message), do: {:ok, message}
+end

From 38a275b31f33262658e5bfc8310f44ed00cae9db Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Sun, 2 Jun 2019 10:08:51 +0000
Subject: [PATCH 10/21] test: add tests for subchain policy

---
 .../activity_pub/mrf/subchain_policy_test.exs | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 test/web/activity_pub/mrf/subchain_policy_test.exs

diff --git a/test/web/activity_pub/mrf/subchain_policy_test.exs b/test/web/activity_pub/mrf/subchain_policy_test.exs
new file mode 100644
index 0000000000..f7cbcad48e
--- /dev/null
+++ b/test/web/activity_pub/mrf/subchain_policy_test.exs
@@ -0,0 +1,32 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.MRF.SubchainPolicyTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Web.ActivityPub.MRF.DropPolicy
+  alias Pleroma.Web.ActivityPub.MRF.SubchainPolicy
+
+  @message %{
+    "actor" => "https://banned.com",
+    "type" => "Create",
+    "object" => %{"content" => "hi"}
+  }
+
+  test "it matches and processes subchains when the actor matches a configured target" do
+    Pleroma.Config.put([:mrf_subchain, :match_actor], %{
+      ~r/^https:\/\/banned.com/s => [DropPolicy]
+    })
+
+    {:reject, _} = SubchainPolicy.filter(@message)
+  end
+
+  test "it doesn't match and process subchains when the actor doesn't match a configured target" do
+    Pleroma.Config.put([:mrf_subchain, :match_actor], %{
+      ~r/^https:\/\/borked.com/s => [DropPolicy]
+    })
+
+    {:ok, _message} = SubchainPolicy.filter(@message)
+  end
+end

From c724d8df9831409df7990dfea3fd07ffb627a156 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Sun, 2 Jun 2019 10:14:56 +0000
Subject: [PATCH 11/21] docs: document mrf_subchain

---
 docs/config.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/docs/config.md b/docs/config.md
index 67b062fe93..5d9de647c2 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -81,6 +81,7 @@ config :pleroma, Pleroma.Emails.Mailer,
   * `Pleroma.Web.ActivityPub.MRF.NoOpPolicy`: Doesn’t modify activities (default)
   * `Pleroma.Web.ActivityPub.MRF.DropPolicy`: Drops all activities. It generally doesn’t makes sense to use in production
   * `Pleroma.Web.ActivityPub.MRF.SimplePolicy`: Restrict the visibility of activities from certains instances (See ``:mrf_simple`` section)
+  * `Pleroma.Web.ActivityPub.MRF.SubchainPolicy`: Selectively runs other MRF policies when messages match (see ``:mrf_subchain`` section)
   * `Pleroma.Web.ActivityPub.MRF.RejectNonPublic`: Drops posts with non-public visibility settings (See ``:mrf_rejectnonpublic`` section)
   * `Pleroma.Web.ActivityPub.MRF.EnsureRePrepended`: Rewrites posts to ensure that replies to posts with subjects do not have an identical subject and instead begin with re:.
 * `public`: Makes the client API in authentificated mode-only except for user-profiles. Useful for disabling the Local Timeline and The Whole Known Network.
@@ -224,6 +225,21 @@ relates to mascots on the mastodon frontend
 * `avatar_removal`: List of instances to strip avatars from
 * `banner_removal`: List of instances to strip banners from
 
+## :mrf_subchain
+This policy processes messages through an alternate pipeline when a given message matches certain criteria.
+All criteria are configured as a map of regular expressions to lists of policy modules.
+
+* `match_actor`: Matches a series of regular expressions against the actor field.
+
+Example:
+
+```
+config :pleroma, :mrf_subchain,
+  match_actor: %{
+    ~r/https:\/\/example.com/s => [Pleroma.Web.ActivityPub.MRF.DropPolicy]
+  }
+```
+
 ## :mrf_rejectnonpublic
 * `allow_followersonly`: whether to allow followers-only posts
 * `allow_direct`: whether to allow direct messages

From 561a21986d312f52bd1d06a477f1c88fd1adc727 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Sun, 2 Jun 2019 10:29:15 +0000
Subject: [PATCH 12/21] formatting

---
 config/config.exs                                   | 3 +--
 lib/pleroma/web/activity_pub/mrf/subchain_policy.ex | 6 +++++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index 450da89304..a5bb05a800 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -320,8 +320,7 @@
   federated_timeline_removal: [],
   replace: []
 
-config :pleroma, :mrf_subchain,
-  match_actor: %{}
+config :pleroma, :mrf_subchain, match_actor: %{}
 
 config :pleroma, :rich_media, enabled: true
 
diff --git a/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex b/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
index 7fb4a607e8..7657043897 100644
--- a/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
+++ b/lib/pleroma/web/activity_pub/mrf/subchain_policy.ex
@@ -22,7 +22,11 @@ defp lookup_subchain(actor) do
   @impl true
   def filter(%{"actor" => actor} = message) do
     with {:ok, match, subchain} <- lookup_subchain(actor) do
-      Logger.debug("[SubchainPolicy] Matched #{actor} against #{inspect(match)} with subchain #{inspect(subchain)}")
+      Logger.debug(
+        "[SubchainPolicy] Matched #{actor} against #{inspect(match)} with subchain #{
+          inspect(subchain)
+        }"
+      )
 
       subchain
       |> MRF.filter(message)

From 83663caa81f1ccca37fe3898feb4ec2d829ad893 Mon Sep 17 00:00:00 2001
From: Ivan Tashkinov <ivant.business@gmail.com>
Date: Sun, 2 Jun 2019 17:45:32 +0300
Subject: [PATCH 13/21] Ueberauth: extended format of OAUTH_CONSUMER_STRATEGIES
 to allow explicit dependency specification.

---
 config/config.exs |  6 +++++-
 docs/config.md    |  2 +-
 mix.exs           | 25 ++++++++++++++++++-------
 3 files changed, 24 insertions(+), 9 deletions(-)

diff --git a/config/config.exs b/config/config.exs
index 68168b2796..5f1a1d0f8a 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -453,7 +453,11 @@
 config :esshd,
   enabled: false
 
-oauth_consumer_strategies = String.split(System.get_env("OAUTH_CONSUMER_STRATEGIES") || "")
+oauth_consumer_strategies =
+  System.get_env("OAUTH_CONSUMER_STRATEGIES")
+  |> to_string()
+  |> String.split()
+  |> Enum.map(&hd(String.split(&1, ":")))
 
 ueberauth_providers =
   for strategy <- oauth_consumer_strategies do
diff --git a/docs/config.md b/docs/config.md
index 67b062fe93..08088f2696 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -492,7 +492,7 @@ Authentication / authorization settings.
 
 * `auth_template`: authentication form template. By default it's `show.html` which corresponds to `lib/pleroma/web/templates/o_auth/o_auth/show.html.eex`.
 * `oauth_consumer_template`: OAuth consumer mode authentication form template. By default it's `consumer.html` which corresponds to `lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex`.
-* `oauth_consumer_strategies`: the list of enabled OAuth consumer strategies; by default it's set by OAUTH_CONSUMER_STRATEGIES environment variable.
+* `oauth_consumer_strategies`: the list of enabled OAuth consumer strategies; by default it's set by OAUTH_CONSUMER_STRATEGIES environment variable. Each entry in this space-delimited string should be of format `<strategy>` or `<strategy>:<dependency>` (e.g. `twitter` or `keycloak:ueberauth_keycloak_strategy` in case dependency is named differently than `ueberauth_<strategy>`).
 
 ## OAuth consumer mode
 
diff --git a/mix.exs b/mix.exs
index b2017ef9bf..df1a7ced44 100644
--- a/mix.exs
+++ b/mix.exs
@@ -51,16 +51,27 @@ def application do
   defp elixirc_paths(:test), do: ["lib", "test/support"]
   defp elixirc_paths(_), do: ["lib"]
 
+  # Specifies OAuth dependencies.
+  defp oauth_deps do
+    oauth_strategy_packages =
+      System.get_env("OAUTH_CONSUMER_STRATEGIES")
+      |> to_string()
+      |> String.split()
+      |> Enum.map(fn strategy_entry ->
+        with [_strategy, dependency] <- String.split(strategy_entry, ":") do
+          dependency
+        else
+          [strategy] -> "ueberauth_#{strategy}"
+        end
+      end)
+
+    for s <- oauth_strategy_packages, do: {String.to_atom(s), ">= 0.0.0"}
+  end
+
   # Specifies your project dependencies.
   #
   # Type `mix help deps` for examples and options.
   defp deps do
-    oauth_strategies = String.split(System.get_env("OAUTH_CONSUMER_STRATEGIES") || "")
-
-    oauth_deps =
-      for s <- oauth_strategies,
-          do: {String.to_atom("ueberauth_#{s}"), ">= 0.0.0"}
-
     [
       {:phoenix, "~> 1.4.1"},
       {:plug_cowboy, "~> 2.0"},
@@ -121,7 +132,7 @@ defp deps do
       {:ex_rated, "~> 1.2"},
       {:plug_static_index_html, "~> 1.0.0"},
       {:excoveralls, "~> 0.11.1", only: :test}
-    ] ++ oauth_deps
+    ] ++ oauth_deps()
   end
 
   # Aliases are shortcuts or tasks specific to the current project.

From 243d8ed94e031464a48621a55058882ba50de019 Mon Sep 17 00:00:00 2001
From: eugenijm <eugenijm@protonmail.com>
Date: Mon, 3 Jun 2019 18:00:32 +0300
Subject: [PATCH 14/21] Use workaround for the heavy checkmark symbol in iOS

---
 lib/pleroma/web/templates/layout/app.html.eex         | 4 ++--
 lib/pleroma/web/templates/o_auth/o_auth/show.html.eex | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/pleroma/web/templates/layout/app.html.eex b/lib/pleroma/web/templates/layout/app.html.eex
index 818b3404bf..98f7293bca 100644
--- a/lib/pleroma/web/templates/layout/app.html.eex
+++ b/lib/pleroma/web/templates/layout/app.html.eex
@@ -89,7 +89,7 @@
 
       .scope:before {
         color: #b9b9ba;
-        content: "✔";
+        content: "✔\fe0e";
         margin-left: 1em;
         margin-right: 1em;
       }
@@ -197,7 +197,7 @@
 
         .scope:first-child:before {
           margin-left: 1em;
-          content: "✔";
+          content: "✔\fe0e";
         }
 
         .scope:after {
diff --git a/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex b/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
index 8b69c30335..ed4fb5ce76 100644
--- a/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
+++ b/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
@@ -56,4 +56,9 @@
 <%= hidden_input f, :response_type, value: @response_type %>
 <%= hidden_input f, :redirect_uri, value: @redirect_uri %>
 <%= hidden_input f, :state, value: @state %>
+
+<%= if Pleroma.Config.oauth_consumer_enabled?() do %>
+  <%= render @view_module, Pleroma.Web.Auth.Authenticator.oauth_consumer_template(), assigns %>
+<% end %>
+
 <% end %>

From f2c4c99e0374a3657400d2e41fe8069f72a75337 Mon Sep 17 00:00:00 2001
From: eugenijm <eugenijm@protonmail.com>
Date: Mon, 3 Jun 2019 18:58:04 +0300
Subject: [PATCH 15/21] Remove repeated scope lists

---
 lib/pleroma/web/templates/layout/app.html.eex |  1 -
 .../templates/o_auth/o_auth/_scopes.html.eex  | 16 ++++++++----
 .../templates/o_auth/o_auth/consumer.html.eex |  4 ++-
 .../web/templates/o_auth/o_auth/show.html.eex | 25 ++-----------------
 4 files changed, 16 insertions(+), 30 deletions(-)

diff --git a/lib/pleroma/web/templates/layout/app.html.eex b/lib/pleroma/web/templates/layout/app.html.eex
index 98f7293bca..b3cf9ed115 100644
--- a/lib/pleroma/web/templates/layout/app.html.eex
+++ b/lib/pleroma/web/templates/layout/app.html.eex
@@ -161,7 +161,6 @@
         width: 100%;
         background-color: #931014;
         border: 1px solid #a06060;
-        color: #902020;
         border-radius: 4px;
         padding: 10px;
         margin-top: 20px;
diff --git a/lib/pleroma/web/templates/o_auth/o_auth/_scopes.html.eex b/lib/pleroma/web/templates/o_auth/o_auth/_scopes.html.eex
index e6cfe108b9..c9ec1ecbfa 100644
--- a/lib/pleroma/web/templates/o_auth/o_auth/_scopes.html.eex
+++ b/lib/pleroma/web/templates/o_auth/o_auth/_scopes.html.eex
@@ -1,13 +1,19 @@
 <div class="scopes-input">
-  <%= label @form, :scope, "Permissions" %>
-
+  <%= label @form, :scope, "The following permissions will be granted" %>
   <div class="scopes">
     <%= for scope <- @available_scopes do %>
       <%# Note: using hidden input with `unchecked_value` in order to distinguish user's empty selection from `scope` param being omitted %>
-      <div class="scope">
+      <%= if scope in @scopes do %>
+        <div class="scope">
+          <%= checkbox @form, :"scope_#{scope}", value: scope in @scopes && scope, checked_value: scope, unchecked_value: "", name: "authorization[scope][]" %>
+          <%= label @form, :"scope_#{scope}", String.capitalize(scope) %>
+          <%= if scope in @scopes && scope do %>
+            <%= String.capitalize(scope) %>
+          <% end %>
+        </div>
+      <% else %>
         <%= checkbox @form, :"scope_#{scope}", value: scope in @scopes && scope, checked_value: scope, unchecked_value: "", name: "authorization[scope][]" %>
-        <%= label @form, :"scope_#{scope}", String.capitalize(scope) %>
-      </div>
+      <% end %>
     <% end %>
   </div>
 </div>
diff --git a/lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex b/lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex
index 4bcda7300e..4a0718851a 100644
--- a/lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex
+++ b/lib/pleroma/web/templates/o_auth/o_auth/consumer.html.eex
@@ -1,7 +1,9 @@
 <h2>Sign in with external provider</h2>
 
 <%= form_for @conn, o_auth_path(@conn, :prepare_request), [as: "authorization", method: "get"], fn f -> %>
-  <%= render @view_module, "_scopes.html", Map.put(assigns, :form, f) %>
+  <div style="display: none">
+    <%= render @view_module, "_scopes.html", Map.merge(assigns, %{form: f}) %>
+  </div>
 
   <%= hidden_input f, :client_id, value: @client_id %>
   <%= hidden_input f, :redirect_uri, value: @redirect_uri %>
diff --git a/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex b/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
index ed4fb5ce76..b17142ff8f 100644
--- a/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
+++ b/lib/pleroma/web/templates/o_auth/o_auth/show.html.eex
@@ -18,7 +18,6 @@
   <%= hidden_input f, :name, value: @params["name"] %>
   <%= hidden_input f, :password, value: @params["password"] %>
   <br>
-
 <% else %>
   <div class="input">
     <%= label f, :name, "Username" %>
@@ -29,36 +28,16 @@
     <%= password_input f, :password %>
   </div>
   <%= submit "Log In" %>
-  <div class="scopes-input">
-    <%= label f, :scope, "The following permissions will be granted" %>
-    <div class="scopes">
-      <%= for scope <- @available_scopes do %>
-        <%# Note: using hidden input with `unchecked_value` in order to distinguish user's empty selection from `scope` param being omitted %>
-        <%= if scope in @scopes do %>
-          <div class="scope">
-            <%= checkbox f, :"scope_#{scope}", value: scope in @scopes && scope, checked_value: scope, unchecked_value: "", name: "authorization[scope][]" %>
-            <%= label f, :"scope_#{scope}", String.capitalize(scope) %>
-            <%= if scope in @scopes && scope do %>
-              <%= String.capitalize(scope) %>
-            <% end %>
-          </div>
-        <% else %>
-          <%= checkbox f, :"scope_#{scope}", value: scope in @scopes && scope, checked_value: scope, unchecked_value: "", name: "authorization[scope][]" %>
-        <% end %>
-      <% end %>
-    </div>
-  </div>
+  <%= render @view_module, "_scopes.html", Map.merge(assigns, %{form: f}) %>
 <% end %>
 
-<%= render @view_module, "_scopes.html", Map.merge(assigns, %{form: f}) %>
-
 <%= hidden_input f, :client_id, value: @client_id %>
 <%= hidden_input f, :response_type, value: @response_type %>
 <%= hidden_input f, :redirect_uri, value: @redirect_uri %>
 <%= hidden_input f, :state, value: @state %>
+<% end %>
 
 <%= if Pleroma.Config.oauth_consumer_enabled?() do %>
   <%= render @view_module, Pleroma.Web.Auth.Authenticator.oauth_consumer_template(), assigns %>
 <% end %>
 
-<% end %>

From be56801ddab84d9e21af75c7752e5898fe0dbecb Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Mon, 3 Jun 2019 19:26:43 +0300
Subject: [PATCH 16/21] Add index on inReplyTo for objects

Fixes the performance of `get_existing_votes`
---
 .../20190603162018_add_object_in_reply_to_index.exs        | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 priv/repo/migrations/20190603162018_add_object_in_reply_to_index.exs

diff --git a/priv/repo/migrations/20190603162018_add_object_in_reply_to_index.exs b/priv/repo/migrations/20190603162018_add_object_in_reply_to_index.exs
new file mode 100644
index 0000000000..df4ac77822
--- /dev/null
+++ b/priv/repo/migrations/20190603162018_add_object_in_reply_to_index.exs
@@ -0,0 +1,7 @@
+defmodule Pleroma.Repo.Migrations.AddObjectInReplyToIndex do
+  use Ecto.Migration
+
+  def change do
+    create index(:objects, ["(data->>'inReplyTo')"], name: :objects_in_reply_to_index)
+  end
+end

From cfc3c62b2ffde1a2fbc7764ad1cbc292e7f20f74 Mon Sep 17 00:00:00 2001
From: rinpatch <rinpatch@sdf.org>
Date: Mon, 3 Jun 2019 20:42:08 +0300
Subject: [PATCH 17/21] Add missing tag index on objects

The previous activity index is useless because objects are not embedded
anymore and instead a joined object is queried.
---
 .../20190603173419_add_tag_index_to_objects.exs           | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 priv/repo/migrations/20190603173419_add_tag_index_to_objects.exs

diff --git a/priv/repo/migrations/20190603173419_add_tag_index_to_objects.exs b/priv/repo/migrations/20190603173419_add_tag_index_to_objects.exs
new file mode 100644
index 0000000000..c915a02130
--- /dev/null
+++ b/priv/repo/migrations/20190603173419_add_tag_index_to_objects.exs
@@ -0,0 +1,8 @@
+defmodule Pleroma.Repo.Migrations.AddTagIndexToObjects do
+  use Ecto.Migration
+
+  def change do
+    drop_if_exists index(:activities, ["(data #> '{\"object\",\"tag\"}')"], using: :gin, name: :activities_tags)
+    create index(:objects, ["(data->'tag')"], using: :gin, name: :objects_tags)
+  end
+end

From 7758148990184ac25e097dc7358a918b89aa3ca9 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Tue, 4 Jun 2019 05:37:31 +0000
Subject: [PATCH 18/21] update CHANGELOG for mrf_subchain

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ff1fff8760..532e76fbeb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -45,6 +45,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - OAuth: added job to clean expired access tokens
 - MRF: Support for rejecting reports from specific instances (`mrf_simple`)
 - MRF: Support for stripping avatars and banner images from specific instances (`mrf_simple`)
+- MRF: Support for running subchains.
 
 ### Changed
 - **Breaking:** Configuration: move from Pleroma.Mailer to Pleroma.Emails.Mailer

From 84cc131b59ad6c8910735c982757fee598de8757 Mon Sep 17 00:00:00 2001
From: Sergey Suprunenko <suprunenko.s@gmail.com>
Date: Tue, 4 Jun 2019 05:46:19 +0000
Subject: [PATCH 19/21] Add missing HTTP Request mocks

---
 test/object/containment_test.exs  |  5 +++++
 test/support/http_request_mock.ex | 21 +++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/test/object/containment_test.exs b/test/object/containment_test.exs
index 4520640939..a7a046203a 100644
--- a/test/object/containment_test.exs
+++ b/test/object/containment_test.exs
@@ -6,6 +6,11 @@ defmodule Pleroma.Object.ContainmentTest do
 
   import Pleroma.Factory
 
+  setup_all do
+    Tesla.Mock.mock_global(fn env -> apply(HttpRequestMock, :request, [env]) end)
+    :ok
+  end
+
   describe "general origin containment" do
     test "contain_origin_from_id() catches obvious spoofing attempts" do
       data = %{
diff --git a/test/support/http_request_mock.ex b/test/support/http_request_mock.ex
index 36b9265e7d..67ef0928a1 100644
--- a/test/support/http_request_mock.ex
+++ b/test/support/http_request_mock.ex
@@ -243,6 +243,14 @@ def get("https://niu.moe/users/rye", _, _, Accept: "application/activity+json")
      }}
   end
 
+  def get("https://n1u.moe/users/rye", _, _, Accept: "application/activity+json") do
+    {:ok,
+     %Tesla.Env{
+       status: 200,
+       body: File.read!("test/fixtures/httpoison_mock/rye.json")
+     }}
+  end
+
   def get("http://mastodon.example.org/users/admin/statuses/100787282858396771", _, _, _) do
     {:ok,
      %Tesla.Env{
@@ -302,6 +310,10 @@ def get("http://mastodon.example.org/users/admin", _, _, Accept: "application/ac
      }}
   end
 
+  def get("http://mastodon.example.org/users/gargron", _, _, Accept: "application/activity+json") do
+    {:error, :nxdomain}
+  end
+
   def get(
         "http://mastodon.example.org/@admin/99541947525187367",
         _,
@@ -546,6 +558,15 @@ def get(
      }}
   end
 
+  def get(
+        "http://gs.example.org:4040/index.php/user/1",
+        _,
+        _,
+        Accept: "application/activity+json"
+      ) do
+    {:ok, %Tesla.Env{status: 406, body: ""}}
+  end
+
   def get("http://gs.example.org/index.php/api/statuses/user_timeline/1.atom", _, _, _) do
     {:ok,
      %Tesla.Env{

From 1c6cf0a348661612070d32c6f4f5d980d9254ac0 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Tue, 4 Jun 2019 06:19:44 +0000
Subject: [PATCH 20/21] nodeinfo: add pollLimits to metadata

---
 lib/pleroma/web/nodeinfo/nodeinfo_controller.ex | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex b/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
index 59f3d4e116..57f5b61bb3 100644
--- a/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
+++ b/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
@@ -97,6 +97,7 @@ def raw_nodeinfo do
         "pleroma_api",
         "mastodon_api",
         "mastodon_api_streaming",
+        "polls",
         if Config.get([:media_proxy, :enabled]) do
           "media_proxy"
         end,
@@ -149,6 +150,7 @@ def raw_nodeinfo do
         },
         staffAccounts: staff_accounts,
         federation: federation_response,
+        pollLimits: Config.get([:instance, :poll_limits]),
         postFormats: Config.get([:instance, :allowed_post_formats]),
         uploadLimits: %{
           general: Config.get([:instance, :upload_limit]),

From 37a4ba06244705dae0a4b0eea9f6f4ac647f5dfb Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Tue, 4 Jun 2019 08:45:03 +0000
Subject: [PATCH 21/21] utils: access inReplyTo as an explicit string when
 fetching poll results`

---
 lib/pleroma/web/activity_pub/utils.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
index b292d7d8d5..b8159e9e5d 100644
--- a/lib/pleroma/web/activity_pub/utils.ex
+++ b/lib/pleroma/web/activity_pub/utils.ex
@@ -797,7 +797,7 @@ def get_existing_votes(actor, %{data: %{"id" => id}}) do
         where: fragment("(?)->>'actor' = ?", activity.data, ^actor),
         where:
           fragment(
-            "(?)->'inReplyTo' = ?",
+            "(?)->>'inReplyTo' = ?",
             object.data,
             ^to_string(id)
           ),