Merge branch 'develop' into openapi/admin/relay

45 files changed, 1083 insertions, 334 deletions

diff --git a/lib/mix/tasks/pleroma/database.ex b/lib/mix/tasks/pleroma/database.ex
index 778de162f..82e2abdcb 100644
--- a/lib/mix/tasks/pleroma/database.ex
+++ b/lib/mix/tasks/pleroma/database.ex
@@ -4,6 +4,7 @@
 
 defmodule Mix.Tasks.Pleroma.Database do
   alias Pleroma.Conversation
+  alias Pleroma.Maintenance
   alias Pleroma.Object
   alias Pleroma.Repo
   alias Pleroma.User
@@ -34,13 +35,7 @@ defmodule Mix.Tasks.Pleroma.Database do
     )
 
     if Keyword.get(options, :vacuum) do
-      Logger.info("Runnning VACUUM FULL")
-
-      Repo.query!(
-        "vacuum full;",
-        [],
-        timeout: :infinity
-      )
+      Maintenance.vacuum("full")
     end
   end
 
@@ -94,13 +89,7 @@ defmodule Mix.Tasks.Pleroma.Database do
     |> Repo.delete_all(timeout: :infinity)
 
     if Keyword.get(options, :vacuum) do
-      Logger.info("Runnning VACUUM FULL")
-
-      Repo.query!(
-        "vacuum full;",
-        [],
-        timeout: :infinity
-      )
+      Maintenance.vacuum("full")
     end
   end
 
@@ -135,4 +124,10 @@ defmodule Mix.Tasks.Pleroma.Database do
     end)
     |> Stream.run()
   end
+
+  def run(["vacuum", args]) do
+    start_pleroma()
+
+    Maintenance.vacuum(args)
+  end
 end
diff --git a/lib/mix/tasks/pleroma/emoji.ex b/lib/mix/tasks/pleroma/emoji.ex
index cdffa88b2..29a5fa99c 100644
--- a/lib/mix/tasks/pleroma/emoji.ex
+++ b/lib/mix/tasks/pleroma/emoji.ex
@@ -15,7 +15,7 @@ defmodule Mix.Tasks.Pleroma.Emoji do
     {options, [], []} = parse_global_opts(args)
 
     url_or_path = options[:manifest] || default_manifest()
-    manifest = fetch_manifest(url_or_path)
+    manifest = fetch_and_decode(url_or_path)
 
     Enum.each(manifest, fn {name, info} ->
       to_print = [
@@ -42,12 +42,12 @@ defmodule Mix.Tasks.Pleroma.Emoji do
 
     url_or_path = options[:manifest] || default_manifest()
 
-    manifest = fetch_manifest(url_or_path)
+    manifest = fetch_and_decode(url_or_path)
 
     for pack_name <- pack_names do
       if Map.has_key?(manifest, pack_name) do
         pack = manifest[pack_name]
-        src_url = pack["src"]
+        src = pack["src"]
 
         IO.puts(
           IO.ANSI.format([
@@ -57,11 +57,11 @@ defmodule Mix.Tasks.Pleroma.Emoji do
             :normal,
             " from ",
             :underline,
-            src_url
+            src
           ])
         )
 
-        binary_archive = Tesla.get!(client(), src_url).body
+        {:ok, binary_archive} = fetch(src)
         archive_sha = :crypto.hash(:sha256, binary_archive) |> Base.encode16()
 
         sha_status_text = ["SHA256 of ", :bright, pack_name, :normal, " source file is ", :bright]
@@ -74,8 +74,8 @@ defmodule Mix.Tasks.Pleroma.Emoji do
           raise "Bad SHA256 for #{pack_name}"
         end
 
-        # The url specified in files should be in the same directory
-        files_url =
+        # The location specified in files should be in the same directory
+        files_loc =
           url_or_path
           |> Path.dirname()
           |> Path.join(pack["files"])
@@ -88,11 +88,11 @@ defmodule Mix.Tasks.Pleroma.Emoji do
             :normal,
             " from ",
             :underline,
-            files_url
+            files_loc
           ])
         )
 
-        files = Tesla.get!(client(), files_url).body |> Jason.decode!()
+        files = fetch_and_decode(files_loc)
 
         IO.puts(IO.ANSI.format(["Unpacking ", :bright, pack_name]))
 
@@ -237,16 +237,20 @@ defmodule Mix.Tasks.Pleroma.Emoji do
     end
   end
 
-  defp fetch_manifest(from) do
-    Jason.decode!(
-      if String.starts_with?(from, "http") do
-        Tesla.get!(client(), from).body
-      else
-        File.read!(from)
-      end
-    )
+  defp fetch_and_decode(from) do
+    with {:ok, json} <- fetch(from) do
+      Jason.decode!(json)
+    end
   end
 
+  defp fetch("http" <> _ = from) do
+    with {:ok, %{body: body}} <- Tesla.get(client(), from) do
+      {:ok, body}
+    end
+  end
+
+  defp fetch(path), do: File.read(path)
+
   defp parse_global_opts(args) do
     OptionParser.parse(
       args,
diff --git a/lib/pleroma/activity/queries.ex b/lib/pleroma/activity/queries.ex
index a34c20343..c99aae44b 100644
--- a/lib/pleroma/activity/queries.ex
+++ b/lib/pleroma/activity/queries.ex
@@ -24,10 +24,7 @@ defmodule Pleroma.Activity.Queries do
 
   @spec by_actor(query, String.t()) :: query
   def by_actor(query \\ Activity, actor) do
-    from(
-      activity in query,
-      where: fragment("(?)->>'actor' = ?", activity.data, ^actor)
-    )
+    from(a in query, where: a.actor == ^actor)
   end
 
   @spec by_author(query, User.t()) :: query
diff --git a/lib/pleroma/constants.ex b/lib/pleroma/constants.ex
index 06174f624..13eeaa96b 100644
--- a/lib/pleroma/constants.ex
+++ b/lib/pleroma/constants.ex
@@ -24,6 +24,6 @@ defmodule Pleroma.Constants do
 
   const(static_only_files,
     do:
-      ~w(index.html robots.txt static static-fe finmoji emoji packs sounds images instance sw.js sw-pleroma.js favicon.png schemas doc)
+      ~w(index.html robots.txt static static-fe finmoji emoji packs sounds images instance sw.js sw-pleroma.js favicon.png schemas doc embed.js embed.css)
   )
 end
diff --git a/lib/pleroma/conversation.ex b/lib/pleroma/conversation.ex
index 37d455cfc..e76eb0087 100644
--- a/lib/pleroma/conversation.ex
+++ b/lib/pleroma/conversation.ex
@@ -63,7 +63,7 @@ defmodule Pleroma.Conversation do
          ap_id when is_binary(ap_id) and byte_size(ap_id) > 0 <- object.data["context"] do
       {:ok, conversation} = create_for_ap_id(ap_id)
 
-      users = User.get_users_from_set(activity.recipients, false)
+      users = User.get_users_from_set(activity.recipients, local_only: false)
 
       participations =
         Enum.map(users, fn user ->
diff --git a/lib/pleroma/emoji/pack.ex b/lib/pleroma/emoji/pack.ex
index eb7d598c6..14a5185be 100644
--- a/lib/pleroma/emoji/pack.ex
+++ b/lib/pleroma/emoji/pack.ex
@@ -499,7 +499,7 @@ defmodule Pleroma.Emoji.Pack do
       if Base.decode16!(sha) == :crypto.hash(:sha256, archive) do
         {:ok, archive}
       else
-        {:error, :imvalid_checksum}
+        {:error, :invalid_checksum}
       end
     end
   end
diff --git a/lib/pleroma/http/adapter_helper/hackney.ex b/lib/pleroma/http/adapter_helper/hackney.ex
index dcb4cac71..3972a03a9 100644
--- a/lib/pleroma/http/adapter_helper/hackney.ex
+++ b/lib/pleroma/http/adapter_helper/hackney.ex
@@ -22,22 +22,7 @@ defmodule Pleroma.HTTP.AdapterHelper.Hackney do
     |> Pleroma.HTTP.AdapterHelper.maybe_add_proxy(proxy)
   end
 
-  defp add_scheme_opts(opts, %URI{scheme: "http"}), do: opts
-
-  defp add_scheme_opts(opts, %URI{scheme: "https", host: host}) do
-    ssl_opts = [
-      ssl_options: [
-        # Workaround for remote server certificate chain issues
-        partial_chain: &:hackney_connect.partial_chain/1,
-
-        # We don't support TLS v1.3 yet
-        versions: [:tlsv1, :"tlsv1.1", :"tlsv1.2"],
-        server_name_indication: to_charlist(host)
-      ]
-    ]
-
-    Keyword.merge(opts, ssl_opts)
-  end
+  defp add_scheme_opts(opts, _), do: opts
 
   def after_request(_), do: :ok
 end
diff --git a/lib/pleroma/maintenance.ex b/lib/pleroma/maintenance.ex
new file mode 100644
index 000000000..326c17825
--- /dev/null
+++ b/lib/pleroma/maintenance.ex
@@ -0,0 +1,37 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Maintenance do
+  alias Pleroma.Repo
+  require Logger
+
+  def vacuum(args) do
+    case args do
+      "analyze" ->
+        Logger.info("Runnning VACUUM ANALYZE.")
+
+        Repo.query!(
+          "vacuum analyze;",
+          [],
+          timeout: :infinity
+        )
+
+      "full" ->
+        Logger.info("Runnning VACUUM FULL.")
+
+        Logger.warn(
+          "Re-packing your entire database may take a while and will consume extra disk space during the process."
+        )
+
+        Repo.query!(
+          "vacuum full;",
+          [],
+          timeout: :infinity
+        )
+
+      _ ->
+        Logger.error("Error: invalid vacuum argument.")
+    end
+  end
+end
diff --git a/lib/pleroma/notification.ex b/lib/pleroma/notification.ex
index 8aa9ed2d4..7eca55ac9 100644
--- a/lib/pleroma/notification.ex
+++ b/lib/pleroma/notification.ex
@@ -92,8 +92,9 @@ defmodule Pleroma.Notification do
     |> join(:left, [n, a], object in Object,
       on:
         fragment(
-          "(?->>'id') = COALESCE((? -> 'object'::text) ->> 'id'::text)",
+          "(?->>'id') = COALESCE(?->'object'->>'id', ?->>'object')",
           object.data,
+          a.data,
           a.data
         )
     )
@@ -224,18 +225,8 @@ defmodule Pleroma.Notification do
       |> Marker.multi_set_last_read_id(user, "notifications")
       |> Repo.transaction()
 
-    Notification
+    for_user_query(user)
     |> where([n], n.id in ^notification_ids)
-    |> join(:inner, [n], activity in assoc(n, :activity))
-    |> join(:left, [n, a], object in Object,
-      on:
-        fragment(
-          "(?->>'id') = COALESCE((? -> 'object'::text) ->> 'id'::text)",
-          object.data,
-          a.data
-        )
-    )
-    |> preload([n, a, o], activity: {a, object: o})
     |> Repo.all()
   end
 
@@ -370,7 +361,8 @@ defmodule Pleroma.Notification do
       when type in ["Create", "Like", "Announce", "Follow", "Move", "EmojiReact"] do
     potential_receiver_ap_ids = get_potential_receiver_ap_ids(activity)
 
-    potential_receivers = User.get_users_from_set(potential_receiver_ap_ids, local_only)
+    potential_receivers =
+      User.get_users_from_set(potential_receiver_ap_ids, local_only: local_only)
 
     notification_enabled_ap_ids =
       potential_receiver_ap_ids
diff --git a/lib/pleroma/plugs/http_security_plug.ex b/lib/pleroma/plugs/http_security_plug.ex
index 6462797b6..6a339b32c 100644
--- a/lib/pleroma/plugs/http_security_plug.ex
+++ b/lib/pleroma/plugs/http_security_plug.ex
@@ -31,7 +31,7 @@ defmodule Pleroma.Plugs.HTTPSecurityPlug do
       {"x-content-type-options", "nosniff"},
       {"referrer-policy", referrer_policy},
       {"x-download-options", "noopen"},
-      {"content-security-policy", csp_string() <> ";"}
+      {"content-security-policy", csp_string()}
     ]
 
     if report_uri do
@@ -43,23 +43,46 @@ defmodule Pleroma.Plugs.HTTPSecurityPlug do
         ]
       }
 
-      headers ++ [{"reply-to", Jason.encode!(report_group)}]
+      [{"reply-to", Jason.encode!(report_group)} | headers]
     else
       headers
     end
   end
 
+  static_csp_rules = [
+    "default-src 'none'",
+    "base-uri 'self'",
+    "frame-ancestors 'none'",
+    "style-src 'self' 'unsafe-inline'",
+    "font-src 'self'",
+    "manifest-src 'self'"
+  ]
+
+  @csp_start [Enum.join(static_csp_rules, ";") <> ";"]
+
   defp csp_string do
     scheme = Config.get([Pleroma.Web.Endpoint, :url])[:scheme]
     static_url = Pleroma.Web.Endpoint.static_url()
     websocket_url = Pleroma.Web.Endpoint.websocket_url()
     report_uri = Config.get([:http_security, :report_uri])
 
-    connect_src = "connect-src 'self' #{static_url} #{websocket_url}"
+    img_src = "img-src 'self' data: blob:"
+    media_src = "media-src 'self'"
+
+    {img_src, media_src} =
+      if Config.get([:media_proxy, :enabled]) &&
+           !Config.get([:media_proxy, :proxy_opts, :redirect_on_failure]) do
+        sources = get_proxy_and_attachment_sources()
+        {[img_src, sources], [media_src, sources]}
+      else
+        {[img_src, " https:"], [media_src, " https:"]}
+      end
+
+    connect_src = ["connect-src 'self' blob: ", static_url, ?\s, websocket_url]
 
     connect_src =
       if Pleroma.Config.get(:env) == :dev do
-        connect_src <> " http://localhost:3035/"
+        [connect_src, " http://localhost:3035/"]
       else
         connect_src
       end
@@ -71,27 +94,46 @@ defmodule Pleroma.Plugs.HTTPSecurityPlug do
         "script-src 'self'"
       end
 
-    main_part = [
-      "default-src 'none'",
-      "base-uri 'self'",
-      "frame-ancestors 'none'",
-      "img-src 'self' data: blob: https:",
-      "media-src 'self' https:",
-      "style-src 'self' 'unsafe-inline'",
-      "font-src 'self'",
-      "manifest-src 'self'",
-      connect_src,
-      script_src
-    ]
+    report = if report_uri, do: ["report-uri ", report_uri, ";report-to csp-endpoint"]
+    insecure = if scheme == "https", do: "upgrade-insecure-requests"
+
+    @csp_start
+    |> add_csp_param(img_src)
+    |> add_csp_param(media_src)
+    |> add_csp_param(connect_src)
+    |> add_csp_param(script_src)
+    |> add_csp_param(insecure)
+    |> add_csp_param(report)
+    |> :erlang.iolist_to_binary()
+  end
+
+  defp get_proxy_and_attachment_sources do
+    media_proxy_whitelist =
+      Enum.reduce(Config.get([:media_proxy, :whitelist]), [], fn host, acc ->
+        add_source(acc, host)
+      end)
 
-    report = if report_uri, do: ["report-uri #{report_uri}; report-to csp-endpoint"], else: []
+    upload_base_url =
+      if Config.get([Pleroma.Upload, :base_url]),
+        do: URI.parse(Config.get([Pleroma.Upload, :base_url])).host
 
-    insecure = if scheme == "https", do: ["upgrade-insecure-requests"], else: []
+    s3_endpoint =
+      if Config.get([Pleroma.Upload, :uploader]) == Pleroma.Uploaders.S3,
+        do: URI.parse(Config.get([Pleroma.Uploaders.S3, :public_endpoint])).host
 
-    (main_part ++ report ++ insecure)
-    |> Enum.join("; ")
+    []
+    |> add_source(upload_base_url)
+    |> add_source(s3_endpoint)
+    |> add_source(media_proxy_whitelist)
   end
 
+  defp add_source(iodata, nil), do: iodata
+  defp add_source(iodata, source), do: [[?\s, source] | iodata]
+
+  defp add_csp_param(csp_iodata, nil), do: csp_iodata
+
+  defp add_csp_param(csp_iodata, param), do: [[param, ?;] | csp_iodata]
+
   def warn_if_disabled do
     unless Config.get([:http_security, :enabled]) do
       Logger.warn("
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index d2eeeb479..72ee2d58e 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -538,9 +538,10 @@ defmodule Pleroma.User do
     |> delete_change(:also_known_as)
     |> unique_constraint(:email)
     |> validate_format(:email, @email_regex)
+    |> validate_inclusion(:actor_type, ["Person", "Service"])
   end
 
-  @spec update_as_admin(%User{}, map) :: {:ok, User.t()} | {:error, Ecto.Changeset.t()}
+  @spec update_as_admin(User.t(), map()) :: {:ok, User.t()} | {:error, Changeset.t()}
   def update_as_admin(user, params) do
     params = Map.put(params, "password_confirmation", params["password"])
     changeset = update_as_admin_changeset(user, params)
@@ -561,7 +562,7 @@ defmodule Pleroma.User do
     |> put_change(:password_reset_pending, false)
   end
 
-  @spec reset_password(User.t(), map) :: {:ok, User.t()} | {:error, Ecto.Changeset.t()}
+  @spec reset_password(User.t(), map()) :: {:ok, User.t()} | {:error, Changeset.t()}
   def reset_password(%User{} = user, params) do
     reset_password(user, user, params)
   end
@@ -1208,8 +1209,9 @@ defmodule Pleroma.User do
 
   def increment_unread_conversation_count(_, user), do: {:ok, user}
 
-  @spec get_users_from_set([String.t()], boolean()) :: [User.t()]
-  def get_users_from_set(ap_ids, local_only \\ true) do
+  @spec get_users_from_set([String.t()], keyword()) :: [User.t()]
+  def get_users_from_set(ap_ids, opts \\ []) do
+    local_only = Keyword.get(opts, :local_only, true)
     criteria = %{ap_id: ap_ids, deactivated: false}
     criteria = if local_only, do: Map.put(criteria, :local, true), else: criteria
 
@@ -1618,12 +1620,19 @@ defmodule Pleroma.User do
   def fetch_by_ap_id(ap_id), do: ActivityPub.make_user_from_ap_id(ap_id)
 
   def get_or_fetch_by_ap_id(ap_id) do
-    user = get_cached_by_ap_id(ap_id)
+    cached_user = get_cached_by_ap_id(ap_id)
 
-    if !is_nil(user) and !needs_update?(user) do
-      {:ok, user}
-    else
-      fetch_by_ap_id(ap_id)
+    maybe_fetched_user = needs_update?(cached_user) && fetch_by_ap_id(ap_id)
+
+    case {cached_user, maybe_fetched_user} do
+      {_, {:ok, %User{} = user}} ->
+        {:ok, user}
+
+      {%User{} = user, _} ->
+        {:ok, user}
+
+      _ ->
+        {:error, :not_found}
     end
   end
 
diff --git a/lib/pleroma/user/query.ex b/lib/pleroma/user/query.ex
index 293bbc082..66ffe9090 100644
--- a/lib/pleroma/user/query.ex
+++ b/lib/pleroma/user/query.ex
@@ -45,7 +45,7 @@ defmodule Pleroma.User.Query do
             is_admin: boolean(),
             is_moderator: boolean(),
             super_users: boolean(),
-            exclude_service_users: boolean(),
+            invisible: boolean(),
             followers: User.t(),
             friends: User.t(),
             recipients_from_activity: [String.t()],
@@ -89,8 +89,8 @@ defmodule Pleroma.User.Query do
     where(query, [u], ilike(field(u, ^key), ^"%#{value}%"))
   end
 
-  defp compose_query({:exclude_service_users, _}, query) do
-    where(query, [u], not like(u.ap_id, "%/relay") and not like(u.ap_id, "%/internal/fetch"))
+  defp compose_query({:invisible, bool}, query) when is_boolean(bool) do
+    where(query, [u], u.invisible == ^bool)
   end
 
   defp compose_query({key, value}, query)
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 2cea55285..958f3e5af 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -538,14 +538,27 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> Repo.one()
   end
 
-  @spec fetch_public_activities(map(), Pagination.type()) :: [Activity.t()]
-  def fetch_public_activities(opts \\ %{}, pagination \\ :keyset) do
+  @spec fetch_public_or_unlisted_activities(map(), Pagination.type()) :: [Activity.t()]
+  def fetch_public_or_unlisted_activities(opts \\ %{}, pagination \\ :keyset) do
     opts = Map.drop(opts, ["user"])
 
-    [Constants.as_public()]
-    |> fetch_activities_query(opts)
-    |> restrict_unlisted()
-    |> Pagination.fetch_paginated(opts, pagination)
+    query = fetch_activities_query([Constants.as_public()], opts)
+
+    query =
+      if opts["restrict_unlisted"] do
+        restrict_unlisted(query)
+      else
+        query
+      end
+
+    Pagination.fetch_paginated(query, opts, pagination)
+  end
+
+  @spec fetch_public_activities(map(), Pagination.type()) :: [Activity.t()]
+  def fetch_public_activities(opts \\ %{}, pagination \\ :keyset) do
+    opts
+    |> Map.put("restrict_unlisted", true)
+    |> fetch_public_or_unlisted_activities(pagination)
   end
 
   @valid_visibilities ~w[direct unlisted public private]
@@ -925,6 +938,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
       where: fragment("not (? && ?)", activity.recipients, ^blocked_ap_ids),
       where:
         fragment(
+          "recipients_contain_blocked_domains(?, ?) = false",
+          activity.recipients,
+          ^domain_blocks
+        ),
+      where:
+        fragment(
           "not (?->>'type' = 'Announce' and ?->'to' \\?| ?)",
           activity.data,
           activity.data,
@@ -1017,6 +1036,17 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  defp exclude_invisible_actors(query, %{"invisible_actors" => true}), do: query
+
+  defp exclude_invisible_actors(query, _opts) do
+    invisible_ap_ids =
+      User.Query.build(%{invisible: true, select: [:ap_id]})
+      |> Repo.all()
+      |> Enum.map(fn %{ap_id: ap_id} -> ap_id end)
+
+    from([activity] in query, where: activity.actor not in ^invisible_ap_ids)
+  end
+
   defp exclude_id(query, %{"exclude_id" => id}) when is_binary(id) do
     from(activity in query, where: activity.id != ^id)
   end
@@ -1122,6 +1152,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> restrict_instance(opts)
     |> Activity.restrict_deactivated_users()
     |> exclude_poll_votes(opts)
+    |> exclude_invisible_actors(opts)
     |> exclude_visibility(opts)
   end
 
@@ -1145,7 +1176,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> Activity.with_joined_object()
     |> Object.with_joined_activity()
     |> select([_like, object, activity], %{activity | object: object})
-    |> order_by([like, _, _], desc: like.id)
+    |> order_by([like, _, _], desc_nulls_last: like.id)
     |> Pagination.fetch_paginated(
       Map.merge(params, %{"skip_order" => true}),
       pagination,
diff --git a/lib/pleroma/web/activity_pub/builder.ex b/lib/pleroma/web/activity_pub/builder.ex
index 7ece764f5..51b74414a 100644
--- a/lib/pleroma/web/activity_pub/builder.ex
+++ b/lib/pleroma/web/activity_pub/builder.ex
@@ -7,6 +7,7 @@ defmodule Pleroma.Web.ActivityPub.Builder do
 
   alias Pleroma.Object
   alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.Relay
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.ActivityPub.Visibility
 
@@ -85,15 +86,20 @@ defmodule Pleroma.Web.ActivityPub.Builder do
     end
   end
 
+  @spec announce(User.t(), Object.t(), keyword()) :: {:ok, map(), keyword()}
   def announce(actor, object, options \\ []) do
     public? = Keyword.get(options, :public, false)
-    to = [actor.follower_address, object.data["actor"]]
 
     to =
-      if public? do
-        [Pleroma.Constants.as_public() | to]
-      else
-        to
+      cond do
+        actor.ap_id == Relay.relay_ap_id() ->
+          [actor.follower_address]
+
+        public? ->
+          [actor.follower_address, object.data["actor"], Pleroma.Constants.as_public()]
+
+        true ->
+          [actor.follower_address, object.data["actor"]]
       end
 
     {:ok,
diff --git a/lib/pleroma/web/activity_pub/side_effects.ex b/lib/pleroma/web/activity_pub/side_effects.ex
index 7eae0c52c..fb6275450 100644
--- a/lib/pleroma/web/activity_pub/side_effects.ex
+++ b/lib/pleroma/web/activity_pub/side_effects.ex
@@ -33,11 +33,14 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
   # - Stream out the announce
   def handle(%{data: %{"type" => "Announce"}} = object, meta) do
     announced_object = Object.get_by_ap_id(object.data["object"])
+    user = User.get_cached_by_ap_id(object.data["actor"])
 
     Utils.add_announce_to_object(object, announced_object)
 
-    Notification.create_notifications(object)
-    ActivityPub.stream_out(object)
+    if !User.is_internal_user?(user) do
+      Notification.create_notifications(object)
+      ActivityPub.stream_out(object)
+    end
 
     {:ok, object, meta}
   end
diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index d594c64f4..8443c284c 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -1045,10 +1045,14 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     Map.put(object, "tag", tags)
   end
 
+  # TODO These should be added on our side on insertion, it doesn't make much
+  # sense to regenerate these all the time
   def add_mention_tags(object) do
-    {enabled_receivers, disabled_receivers} = Utils.get_notified_from_object(object)
-    potential_receivers = enabled_receivers ++ disabled_receivers
-    mentions = Enum.map(potential_receivers, &build_mention_tag/1)
+    to = object["to"] || []
+    cc = object["cc"] || []
+    mentioned = User.get_users_from_set(to ++ cc, local_only: false)
+
+    mentions = Enum.map(mentioned, &build_mention_tag/1)
 
     tags = object["tag"] || []
     Map.put(object, "tag", tags ++ mentions)
diff --git a/lib/pleroma/web/admin_api/controllers/admin_api_controller.ex b/lib/pleroma/web/admin_api/controllers/admin_api_controller.ex
index b73701f5e..0c30b106c 100644
--- a/lib/pleroma/web/admin_api/controllers/admin_api_controller.ex
+++ b/lib/pleroma/web/admin_api/controllers/admin_api_controller.ex
@@ -16,7 +16,6 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   alias Pleroma.ReportNote
   alias Pleroma.Stats
   alias Pleroma.User
-  alias Pleroma.UserInviteToken
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Builder
   alias Pleroma.Web.ActivityPub.Pipeline
@@ -31,8 +30,6 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.Endpoint
   alias Pleroma.Web.MastodonAPI
-  alias Pleroma.Web.MastodonAPI.AppView
-  alias Pleroma.Web.OAuth.App
   alias Pleroma.Web.Router
 
   require Logger
@@ -68,14 +65,6 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
          ]
   )
 
-  plug(OAuthScopesPlug, %{scopes: ["read:invites"], admin: true} when action == :invites)
-
-  plug(
-    OAuthScopesPlug,
-    %{scopes: ["write:invites"], admin: true}
-    when action in [:create_invite_token, :revoke_invite, :email_invite]
-  )
-
   plug(
     OAuthScopesPlug,
     %{scopes: ["write:follows"], admin: true}
@@ -120,10 +109,6 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
            :config_update,
            :resend_confirmation_email,
            :confirm_email,
-           :oauth_app_create,
-           :oauth_app_list,
-           :oauth_app_update,
-           :oauth_app_delete,
            :reload_emoji
          ]
   )
@@ -529,69 +514,6 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
     render_error(conn, :forbidden, "You can't revoke your own admin status.")
   end
 
-  @doc "Sends registration invite via email"
-  def email_invite(%{assigns: %{user: user}} = conn, %{"email" => email} = params) do
-    with {_, false} <- {:registrations_open, Config.get([:instance, :registrations_open])},
-         {_, true} <- {:invites_enabled, Config.get([:instance, :invites_enabled])},
-         {:ok, invite_token} <- UserInviteToken.create_invite(),
-         email <-
-           Pleroma.Emails.UserEmail.user_invitation_email(
-             user,
-             invite_token,
-             email,
-             params["name"]
-           ),
-         {:ok, _} <- Pleroma.Emails.Mailer.deliver(email) do
-      json_response(conn, :no_content, "")
-    else
-      {:registrations_open, _} ->
-        {:error, "To send invites you need to set the `registrations_open` option to false."}
-
-      {:invites_enabled, _} ->
-        {:error, "To send invites you need to set the `invites_enabled` option to true."}
-    end
-  end
-
-  @doc "Create an account registration invite token"
-  def create_invite_token(conn, params) do
-    opts = %{}
-
-    opts =
-      if params["max_use"],
-        do: Map.put(opts, :max_use, params["max_use"]),
-        else: opts
-
-    opts =
-      if params["expires_at"],
-        do: Map.put(opts, :expires_at, params["expires_at"]),
-        else: opts
-
-    {:ok, invite} = UserInviteToken.create_invite(opts)
-
-    json(conn, AccountView.render("invite.json", %{invite: invite}))
-  end
-
-  @doc "Get list of created invites"
-  def invites(conn, _params) do
-    invites = UserInviteToken.list_invites()
-
-    conn
-    |> put_view(AccountView)
-    |> render("invites.json", %{invites: invites})
-  end
-
-  @doc "Revokes invite by token"
-  def revoke_invite(conn, %{"token" => token}) do
-    with {:ok, invite} <- UserInviteToken.find_by_token(token),
-         {:ok, updated_invite} = UserInviteToken.update_invite(invite, %{used: true}) do
-      conn
-      |> put_view(AccountView)
-      |> render("invite.json", %{invite: updated_invite})
-    else
-      nil -> {:error, :not_found}
-    end
-  end
-
   @doc "Get a password reset token (base64 string) for given nickname"
   def get_password_reset(conn, %{"nickname" => nickname}) do
     (%User{local: true} = user) = User.get_cached_by_nickname(nickname)
@@ -647,7 +569,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
         %{assigns: %{user: admin}} = conn,
         %{"nickname" => nickname} = params
       ) do
-    with {_, user} <- {:user, User.get_cached_by_nickname(nickname)},
+    with {_, %User{} = user} <- {:user, User.get_cached_by_nickname(nickname)},
          {:ok, _user} <-
            User.update_as_admin(user, params) do
       ModerationLog.insert_log(%{
@@ -669,11 +591,12 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
       json(conn, %{status: "success"})
     else
       {:error, changeset} ->
-        {_, {error, _}} = Enum.at(changeset.errors, 0)
-        json(conn, %{error: "New password #{error}."})
+        errors = Map.new(changeset.errors, fn {key, {error, _}} -> {key, error} end)
+
+        json(conn, %{errors: errors})
 
       _ ->
-        json(conn, %{error: "Unable to change password."})
+        json(conn, %{error: "Unable to update user."})
     end
   end
 
@@ -949,83 +872,6 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
     conn |> json("")
   end
 
-  def oauth_app_create(conn, params) do
-    params =
-      if params["name"] do
-        Map.put(params, "client_name", params["name"])
-      else
-        params
-      end
-
-    result =
-      case App.create(params) do
-        {:ok, app} ->
-          AppView.render("show.json", %{app: app, admin: true})
-
-        {:error, changeset} ->
-          App.errors(changeset)
-      end
-
-    json(conn, result)
-  end
-
-  def oauth_app_update(conn, params) do
-    params =
-      if params["name"] do
-        Map.put(params, "client_name", params["name"])
-      else
-        params
-      end
-
-    with {:ok, app} <- App.update(params) do
-      json(conn, AppView.render("show.json", %{app: app, admin: true}))
-    else
-      {:error, changeset} ->
-        json(conn, App.errors(changeset))
-
-      nil ->
-        json_response(conn, :bad_request, "")
-    end
-  end
-
-  def oauth_app_list(conn, params) do
-    {page, page_size} = page_params(params)
-
-    search_params = %{
-      client_name: params["name"],
-      client_id: params["client_id"],
-      page: page,
-      page_size: page_size
-    }
-
-    search_params =
-      if Map.has_key?(params, "trusted") do
-        Map.put(search_params, :trusted, params["trusted"])
-      else
-        search_params
-      end
-
-    with {:ok, apps, count} <- App.search(search_params) do
-      json(
-        conn,
-        AppView.render("index.json",
-          apps: apps,
-          count: count,
-          page_size: page_size,
-          admin: true
-        )
-      )
-    end
-  end
-
-  def oauth_app_delete(conn, params) do
-    with {:ok, _app} <- App.destroy(params["id"]) do
-      json_response(conn, :no_content, "")
-    else
-      _ -> json_response(conn, :bad_request, "")
-    end
-  end
-
   def stats(conn, _) do
     count = Stats.get_status_visibility_count()
 
diff --git a/lib/pleroma/web/admin_api/controllers/invite_controller.ex b/lib/pleroma/web/admin_api/controllers/invite_controller.ex
new file mode 100644
index 000000000..7d169b8d2
--- /dev/null
+++ b/lib/pleroma/web/admin_api/controllers/invite_controller.ex
@@ -0,0 +1,78 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.InviteController do
+  use Pleroma.Web, :controller
+
+  import Pleroma.Web.ControllerHelper, only: [json_response: 3]
+
+  alias Pleroma.Config
+  alias Pleroma.Plugs.OAuthScopesPlug
+  alias Pleroma.UserInviteToken
+
+  require Logger
+
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+  plug(OAuthScopesPlug, %{scopes: ["read:invites"], admin: true} when action == :index)
+
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["write:invites"], admin: true} when action in [:create, :revoke, :email]
+  )
+
+  action_fallback(Pleroma.Web.AdminAPI.FallbackController)
+
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.Admin.InviteOperation
+
+  @doc "Get list of created invites"
+  def index(conn, _params) do
+    invites = UserInviteToken.list_invites()
+
+    render(conn, "index.json", invites: invites)
+  end
+
+  @doc "Create an account registration invite token"
+  def create(%{body_params: params} = conn, _) do
+    {:ok, invite} = UserInviteToken.create_invite(params)
+
+    render(conn, "show.json", invite: invite)
+  end
+
+  @doc "Revokes invite by token"
+  def revoke(%{body_params: %{token: token}} = conn, _) do
+    with {:ok, invite} <- UserInviteToken.find_by_token(token),
+         {:ok, updated_invite} = UserInviteToken.update_invite(invite, %{used: true}) do
+      render(conn, "show.json", invite: updated_invite)
+    else
+      nil -> {:error, :not_found}
+      error -> error
+    end
+  end
+
+  @doc "Sends registration invite via email"
+  def email(%{assigns: %{user: user}, body_params: %{email: email} = params} = conn, _) do
+    with {_, false} <- {:registrations_open, Config.get([:instance, :registrations_open])},
+         {_, true} <- {:invites_enabled, Config.get([:instance, :invites_enabled])},
+         {:ok, invite_token} <- UserInviteToken.create_invite(),
+         {:ok, _} <-
+           user
+           |> Pleroma.Emails.UserEmail.user_invitation_email(
+             invite_token,
+             email,
+             params[:name]
+           )
+           |> Pleroma.Emails.Mailer.deliver() do
+      json_response(conn, :no_content, "")
+    else
+      {:registrations_open, _} ->
+        {:error, "To send invites you need to set the `registrations_open` option to false."}
+
+      {:invites_enabled, _} ->
+        {:error, "To send invites you need to set the `invites_enabled` option to true."}
+
+      {:error, error} ->
+        {:error, error}
+    end
+  end
+end
diff --git a/lib/pleroma/web/admin_api/controllers/oauth_app_controller.ex b/lib/pleroma/web/admin_api/controllers/oauth_app_controller.ex
new file mode 100644
index 000000000..04e629fc1
--- /dev/null
+++ b/lib/pleroma/web/admin_api/controllers/oauth_app_controller.ex
@@ -0,0 +1,87 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.OAuthAppController do
+  use Pleroma.Web, :controller
+
+  import Pleroma.Web.ControllerHelper, only: [json_response: 3]
+
+  alias Pleroma.Plugs.OAuthScopesPlug
+  alias Pleroma.Web.OAuth.App
+
+  require Logger
+
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+  plug(:put_view, Pleroma.Web.MastodonAPI.AppView)
+
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["write"], admin: true}
+    when action in [:create, :index, :update, :delete]
+  )
+
+  action_fallback(Pleroma.Web.AdminAPI.FallbackController)
+
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.Admin.OAuthAppOperation
+
+  def index(conn, params) do
+    search_params =
+      params
+      |> Map.take([:client_id, :page, :page_size, :trusted])
+      |> Map.put(:client_name, params[:name])
+
+    with {:ok, apps, count} <- App.search(search_params) do
+      render(conn, "index.json",
+        apps: apps,
+        count: count,
+        page_size: params.page_size,
+        admin: true
+      )
+    end
+  end
+
+  def create(%{body_params: params} = conn, _) do
+    params =
+      if params[:name] do
+        Map.put(params, :client_name, params[:name])
+      else
+        params
+      end
+
+    case App.create(params) do
+      {:ok, app} ->
+        render(conn, "show.json", app: app, admin: true)
+
+      {:error, changeset} ->
+        json(conn, App.errors(changeset))
+    end
+  end
+
+  def update(%{body_params: params} = conn, %{id: id}) do
+    params =
+      if params[:name] do
+        Map.put(params, :client_name, params.name)
+      else
+        params
+      end
+
+    with {:ok, app} <- App.update(id, params) do
+      render(conn, "show.json", app: app, admin: true)
+    else
+      {:error, changeset} ->
+        json(conn, App.errors(changeset))
+
+      nil ->
+        json_response(conn, :bad_request, "")
+    end
+  end
+
+  def delete(conn, params) do
+    with {:ok, _app} <- App.destroy(params.id) do
+      json_response(conn, :no_content, "")
+    else
+      _ -> json_response(conn, :bad_request, "")
+    end
+  end
+end
diff --git a/lib/pleroma/web/admin_api/controllers/status_controller.ex b/lib/pleroma/web/admin_api/controllers/status_controller.ex
index 08cb9c10b..c91fbc771 100644
--- a/lib/pleroma/web/admin_api/controllers/status_controller.ex
+++ b/lib/pleroma/web/admin_api/controllers/status_controller.ex
@@ -42,7 +42,7 @@ defmodule Pleroma.Web.AdminAPI.StatusController do
   def show(conn, %{id: id}) do
     with %Activity{} = activity <- Activity.get_by_id(id) do
       conn
-      |> put_view(MastodonAPI.StatusView)
+      |> put_view(Pleroma.Web.AdminAPI.StatusView)
       |> render("show.json", %{activity: activity})
     else
       nil -> {:error, :not_found}
diff --git a/lib/pleroma/web/admin_api/search.ex b/lib/pleroma/web/admin_api/search.ex
index c28efadd5..0bfb8f022 100644
--- a/lib/pleroma/web/admin_api/search.ex
+++ b/lib/pleroma/web/admin_api/search.ex
@@ -21,7 +21,7 @@ defmodule Pleroma.Web.AdminAPI.Search do
     query =
       params
       |> Map.drop([:page, :page_size])
-      |> Map.put(:exclude_service_users, true)
+      |> Map.put(:invisible, false)
       |> User.Query.build()
       |> order_by([u], u.nickname)
 
@@ -31,7 +31,6 @@ defmodule Pleroma.Web.AdminAPI.Search do
     count = Repo.aggregate(query, :count, :id)
 
     results = Repo.all(paginated_query)
-
     {:ok, results, count}
   end
 end
diff --git a/lib/pleroma/web/admin_api/views/account_view.ex b/lib/pleroma/web/admin_api/views/account_view.ex
index 46dadb5ee..120159527 100644
--- a/lib/pleroma/web/admin_api/views/account_view.ex
+++ b/lib/pleroma/web/admin_api/views/account_view.ex
@@ -80,24 +80,6 @@ defmodule Pleroma.Web.AdminAPI.AccountView do
     }
   end
 
-  def render("invite.json", %{invite: invite}) do
-    %{
-      "id" => invite.id,
-      "token" => invite.token,
-      "used" => invite.used,
-      "expires_at" => invite.expires_at,
-      "uses" => invite.uses,
-      "max_use" => invite.max_use,
-      "invite_type" => invite.invite_type
-    }
-  end
-
-  def render("invites.json", %{invites: invites}) do
-    %{
-      invites: render_many(invites, AccountView, "invite.json", as: :invite)
-    }
-  end
-
   def render("created.json", %{user: user}) do
     %{
       type: "success",
diff --git a/lib/pleroma/web/admin_api/views/invite_view.ex b/lib/pleroma/web/admin_api/views/invite_view.ex
new file mode 100644
index 000000000..f93cb6916
--- /dev/null
+++ b/lib/pleroma/web/admin_api/views/invite_view.ex
@@ -0,0 +1,25 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.AdminAPI.InviteView do
+  use Pleroma.Web, :view
+
+  def render("index.json", %{invites: invites}) do
+    %{
+      invites: render_many(invites, __MODULE__, "show.json", as: :invite)
+    }
+  end
+
+  def render("show.json", %{invite: invite}) do
+    %{
+      "id" => invite.id,
+      "token" => invite.token,
+      "used" => invite.used,
+      "expires_at" => invite.expires_at,
+      "uses" => invite.uses,
+      "max_use" => invite.max_use,
+      "invite_type" => invite.invite_type
+    }
+  end
+end
diff --git a/lib/pleroma/web/api_spec/operations/admin/invite_operation.ex b/lib/pleroma/web/api_spec/operations/admin/invite_operation.ex
new file mode 100644
index 000000000..d3af9db49
--- /dev/null
+++ b/lib/pleroma/web/api_spec/operations/admin/invite_operation.ex
@@ -0,0 +1,148 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Admin.InviteOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["Admin", "Invites"],
+      summary: "Get a list of generated invites",
+      operationId: "AdminAPI.InviteController.index",
+      security: [%{"oAuth" => ["read:invites"]}],
+      responses: %{
+        200 =>
+          Operation.response("Invites", "application/json", %Schema{
+            type: :object,
+            properties: %{
+              invites: %Schema{type: :array, items: invite()}
+            },
+            example: %{
+              "invites" => [
+                %{
+                  "id" => 123,
+                  "token" => "kSQtDj_GNy2NZsL9AQDFIsHN5qdbguB6qRg3WHw6K1U=",
+                  "used" => true,
+                  "expires_at" => nil,
+                  "uses" => 0,
+                  "max_use" => nil,
+                  "invite_type" => "one_time"
+                }
+              ]
+            }
+          })
+      }
+    }
+  end
+
+  def create_operation do
+    %Operation{
+      tags: ["Admin", "Invites"],
+      summary: "Create an account registration invite token",
+      operationId: "AdminAPI.InviteController.create",
+      security: [%{"oAuth" => ["write:invites"]}],
+      requestBody:
+        request_body("Parameters", %Schema{
+          type: :object,
+          properties: %{
+            max_use: %Schema{type: :integer},
+            expires_at: %Schema{type: :string, format: :date, example: "2020-04-20"}
+          }
+        }),
+      responses: %{
+        200 => Operation.response("Invite", "application/json", invite())
+      }
+    }
+  end
+
+  def revoke_operation do
+    %Operation{
+      tags: ["Admin", "Invites"],
+      summary: "Revoke invite by token",
+      operationId: "AdminAPI.InviteController.revoke",
+      security: [%{"oAuth" => ["write:invites"]}],
+      requestBody:
+        request_body(
+          "Parameters",
+          %Schema{
+            type: :object,
+            required: [:token],
+            properties: %{
+              token: %Schema{type: :string}
+            }
+          },
+          required: true
+        ),
+      responses: %{
+        200 => Operation.response("Invite", "application/json", invite()),
+        400 => Operation.response("Bad Request", "application/json", ApiError),
+        404 => Operation.response("Not Found", "application/json", ApiError)
+      }
+    }
+  end
+
+  def email_operation do
+    %Operation{
+      tags: ["Admin", "Invites"],
+      summary: "Sends registration invite via email",
+      operationId: "AdminAPI.InviteController.email",
+      security: [%{"oAuth" => ["write:invites"]}],
+      requestBody:
+        request_body(
+          "Parameters",
+          %Schema{
+            type: :object,
+            required: [:email],
+            properties: %{
+              email: %Schema{type: :string, format: :email},
+              name: %Schema{type: :string}
+            }
+          },
+          required: true
+        ),
+      responses: %{
+        204 => no_content_response(),
+        400 => Operation.response("Bad Request", "application/json", ApiError),
+        403 => Operation.response("Forbidden", "application/json", ApiError)
+      }
+    }
+  end
+
+  defp invite do
+    %Schema{
+      title: "Invite",
+      type: :object,
+      properties: %{
+        id: %Schema{type: :integer},
+        token: %Schema{type: :string},
+        used: %Schema{type: :boolean},
+        expires_at: %Schema{type: :string, format: :date, nullable: true},
+        uses: %Schema{type: :integer},
+        max_use: %Schema{type: :integer, nullable: true},
+        invite_type: %Schema{
+          type: :string,
+          enum: ["one_time", "reusable", "date_limited", "reusable_date_limited"]
+        }
+      },
+      example: %{
+        "id" => 123,
+        "token" => "kSQtDj_GNy2NZsL9AQDFIsHN5qdbguB6qRg3WHw6K1U=",
+        "used" => true,
+        "expires_at" => nil,
+        "uses" => 0,
+        "max_use" => nil,
+        "invite_type" => "one_time"
+      }
+    }
+  end
+end
diff --git a/lib/pleroma/web/api_spec/operations/admin/oauth_app_operation.ex b/lib/pleroma/web/api_spec/operations/admin/oauth_app_operation.ex
new file mode 100644
index 000000000..fbc9f80d7
--- /dev/null
+++ b/lib/pleroma/web/api_spec/operations/admin/oauth_app_operation.ex
@@ -0,0 +1,215 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Admin.OAuthAppOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      summary: "List OAuth apps",
+      tags: ["Admin", "oAuth Apps"],
+      operationId: "AdminAPI.OAuthAppController.index",
+      security: [%{"oAuth" => ["write"]}],
+      parameters: [
+        Operation.parameter(:name, :query, %Schema{type: :string}, "App name"),
+        Operation.parameter(:client_id, :query, %Schema{type: :string}, "Client ID"),
+        Operation.parameter(:page, :query, %Schema{type: :integer, default: 1}, "Page"),
+        Operation.parameter(
+          :trusted,
+          :query,
+          %Schema{type: :boolean, default: false},
+          "Trusted apps"
+        ),
+        Operation.parameter(
+          :page_size,
+          :query,
+          %Schema{type: :integer, default: 50},
+          "Number of apps to return"
+        )
+      ],
+      responses: %{
+        200 =>
+          Operation.response("List of apps", "application/json", %Schema{
+            type: :object,
+            properties: %{
+              apps: %Schema{type: :array, items: oauth_app()},
+              count: %Schema{type: :integer},
+              page_size: %Schema{type: :integer}
+            },
+            example: %{
+              "apps" => [
+                %{
+                  "id" => 1,
+                  "name" => "App name",
+                  "client_id" => "yHoDSiWYp5mPV6AfsaVOWjdOyt5PhWRiafi6MRd1lSk",
+                  "client_secret" => "nLmis486Vqrv2o65eM9mLQx_m_4gH-Q6PcDpGIMl6FY",
+                  "redirect_uri" => "https://example.com/oauth-callback",
+                  "website" => "https://example.com",
+                  "trusted" => true
+                }
+              ],
+              "count" => 1,
+              "page_size" => 50
+            }
+          })
+      }
+    }
+  end
+
+  def create_operation do
+    %Operation{
+      tags: ["Admin", "oAuth Apps"],
+      summary: "Create OAuth App",
+      operationId: "AdminAPI.OAuthAppController.create",
+      requestBody: request_body("Parameters", create_request()),
+      security: [%{"oAuth" => ["write"]}],
+      responses: %{
+        200 => Operation.response("App", "application/json", oauth_app()),
+        400 => Operation.response("Bad Request", "application/json", ApiError)
+      }
+    }
+  end
+
+  def update_operation do
+    %Operation{
+      tags: ["Admin", "oAuth Apps"],
+      summary: "Update OAuth App",
+      operationId: "AdminAPI.OAuthAppController.update",
+      parameters: [id_param()],
+      security: [%{"oAuth" => ["write"]}],
+      requestBody: request_body("Parameters", update_request()),
+      responses: %{
+        200 => Operation.response("App", "application/json", oauth_app()),
+        400 =>
+          Operation.response("Bad Request", "application/json", %Schema{
+            oneOf: [ApiError, %Schema{type: :string}]
+          })
+      }
+    }
+  end
+
+  def delete_operation do
+    %Operation{
+      tags: ["Admin", "oAuth Apps"],
+      summary: "Delete OAuth App",
+      operationId: "AdminAPI.OAuthAppController.delete",
+      parameters: [id_param()],
+      security: [%{"oAuth" => ["write"]}],
+      responses: %{
+        204 => no_content_response(),
+        400 => no_content_response()
+      }
+    }
+  end
+
+  defp create_request do
+    %Schema{
+      title: "oAuthAppCreateRequest",
+      type: :object,
+      required: [:name, :redirect_uris],
+      properties: %{
+        name: %Schema{type: :string, description: "Application Name"},
+        scopes: %Schema{type: :array, items: %Schema{type: :string}, description: "oAuth scopes"},
+        redirect_uris: %Schema{
+          type: :string,
+          description:
+            "Where the user should be redirected after authorization. To display the authorization code to the user instead of redirecting to a web page, use `urn:ietf:wg:oauth:2.0:oob` in this parameter."
+        },
+        website: %Schema{
+          type: :string,
+          nullable: true,
+          description: "A URL to the homepage of the app"
+        },
+        trusted: %Schema{
+          type: :boolean,
+          nullable: true,
+          default: false,
+          description: "Is the app trusted?"
+        }
+      },
+      example: %{
+        "name" => "My App",
+        "redirect_uris" => "https://myapp.com/auth/callback",
+        "website" => "https://myapp.com/",
+        "scopes" => ["read", "write"],
+        "trusted" => true
+      }
+    }
+  end
+
+  defp update_request do
+    %Schema{
+      title: "oAuthAppUpdateRequest",
+      type: :object,
+      properties: %{
+        name: %Schema{type: :string, description: "Application Name"},
+        scopes: %Schema{type: :array, items: %Schema{type: :string}, description: "oAuth scopes"},
+        redirect_uris: %Schema{
+          type: :string,
+          description:
+            "Where the user should be redirected after authorization. To display the authorization code to the user instead of redirecting to a web page, use `urn:ietf:wg:oauth:2.0:oob` in this parameter."
+        },
+        website: %Schema{
+          type: :string,
+          nullable: true,
+          description: "A URL to the homepage of the app"
+        },
+        trusted: %Schema{
+          type: :boolean,
+          nullable: true,
+          default: false,
+          description: "Is the app trusted?"
+        }
+      },
+      example: %{
+        "name" => "My App",
+        "redirect_uris" => "https://myapp.com/auth/callback",
+        "website" => "https://myapp.com/",
+        "scopes" => ["read", "write"],
+        "trusted" => true
+      }
+    }
+  end
+
+  defp oauth_app do
+    %Schema{
+      title: "oAuthApp",
+      type: :object,
+      properties: %{
+        id: %Schema{type: :integer},
+        name: %Schema{type: :string},
+        client_id: %Schema{type: :string},
+        client_secret: %Schema{type: :string},
+        redirect_uri: %Schema{type: :string},
+        website: %Schema{type: :string, nullable: true},
+        trusted: %Schema{type: :boolean}
+      },
+      example: %{
+        "id" => 123,
+        "name" => "My App",
+        "client_id" => "TWhM-tNSuncnqN7DBJmoyeLnk6K3iJJ71KKXxgL1hPM",
+        "client_secret" => "ZEaFUFmF0umgBX1qKJDjaU99Q31lDkOU8NutzTOoliw",
+        "redirect_uri" => "https://myapp.com/oauth-callback",
+        "website" => "https://myapp.com/",
+        "trusted" => false
+      }
+    }
+  end
+
+  def id_param do
+    Operation.parameter(:id, :path, :integer, "App ID",
+      example: 1337,
+      required: true
+    )
+  end
+end
diff --git a/lib/pleroma/web/api_spec/operations/instance_operation.ex b/lib/pleroma/web/api_spec/operations/instance_operation.ex
index d5c335d0c..bf39ae643 100644
--- a/lib/pleroma/web/api_spec/operations/instance_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/instance_operation.ex
@@ -137,7 +137,7 @@ defmodule Pleroma.Web.ApiSpec.InstanceOperation do
         "background_upload_limit" => 4_000_000,
         "background_image" => "/static/image.png",
         "banner_upload_limit" => 4_000_000,
-        "description" => "A Pleroma instance, an alternative fediverse server",
+        "description" => "Pleroma: An efficient and flexible fediverse server",
         "email" => "lain@lain.com",
         "languages" => ["en"],
         "max_toot_chars" => 5000,
diff --git a/lib/pleroma/web/embed_controller.ex b/lib/pleroma/web/embed_controller.ex
new file mode 100644
index 000000000..f6b8a5ee1
--- /dev/null
+++ b/lib/pleroma/web/embed_controller.ex
@@ -0,0 +1,42 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.EmbedController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.Activity
+  alias Pleroma.Object
+  alias Pleroma.User
+
+  alias Pleroma.Web.ActivityPub.Visibility
+
+  plug(:put_layout, :embed)
+
+  def show(conn, %{"id" => id}) do
+    with %Activity{local: true} = activity <-
+           Activity.get_by_id_with_object(id),
+         true <- Visibility.is_public?(activity.object) do
+      {:ok, author} = User.get_or_fetch(activity.object.data["actor"])
+
+      conn
+      |> delete_resp_header("x-frame-options")
+      |> delete_resp_header("content-security-policy")
+      |> render("show.html",
+        activity: activity,
+        author: User.sanitize_html(author),
+        counts: get_counts(activity)
+      )
+    end
+  end
+
+  defp get_counts(%Activity{} = activity) do
+    %Object{data: data} = Object.normalize(activity)
+
+    %{
+      likes: Map.get(data, "like_count", 0),
+      replies: Map.get(data, "repliesCount", 0),
+      announces: Map.get(data, "announcement_count", 0)
+    }
+  end
+end
diff --git a/lib/pleroma/web/feed/user_controller.ex b/lib/pleroma/web/feed/user_controller.ex
index 1b72e23dc..5a6fc9de0 100644
--- a/lib/pleroma/web/feed/user_controller.ex
+++ b/lib/pleroma/web/feed/user_controller.ex
@@ -56,7 +56,7 @@ defmodule Pleroma.Web.Feed.UserController do
           "actor_id" => user.ap_id
         }
         |> put_if_exist("max_id", params["max_id"])
-        |> ActivityPub.fetch_public_activities()
+        |> ActivityPub.fetch_public_or_unlisted_activities()
 
       conn
       |> put_resp_content_type("application/#{format}+xml")
diff --git a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
index 75512442d..97295a52f 100644
--- a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
@@ -81,7 +81,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
 
   plug(
     RateLimiter,
-    [name: :relation_id_action, params: ["id", "uri"]] when action in @relationship_actions
+    [name: :relation_id_action, params: [:id, :uri]] when action in @relationship_actions
   )
 
   plug(RateLimiter, [name: :relations_actions] when action in @relationship_actions)
@@ -139,9 +139,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
   end
 
   @doc "PATCH /api/v1/accounts/update_credentials"
-  def update_credentials(%{assigns: %{user: original_user}, body_params: params} = conn, _params) do
-    user = original_user
-
+  def update_credentials(%{assigns: %{user: user}, body_params: params} = conn, _params) do
     params =
       params
       |> Enum.filter(fn {_, value} -> not is_nil(value) end)
@@ -183,12 +181,31 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
     changeset = User.update_changeset(user, user_params)
 
     with {:ok, user} <- User.update_and_set_cache(changeset) do
+      user
+      |> build_update_activity_params()
+      |> ActivityPub.update()
+
       render(conn, "show.json", user: user, for: user, with_pleroma_settings: true)
     else
       _e -> render_error(conn, :forbidden, "Invalid request")
     end
   end
 
+  # Hotfix, handling will be redone with the pipeline
+  defp build_update_activity_params(user) do
+    object =
+      Pleroma.Web.ActivityPub.UserView.render("user.json", user: user)
+      |> Map.delete("@context")
+
+    %{
+      local: true,
+      to: [user.follower_address],
+      cc: [],
+      object: object,
+      actor: user.ap_id
+    }
+  end
+
   defp add_if_present(map, params, params_field, map_field, value_function \\ &{:ok, &1}) do
     with true <- is_map(params),
          true <- Map.has_key?(params, params_field),
diff --git a/lib/pleroma/web/mastodon_api/controllers/conversation_controller.ex b/lib/pleroma/web/mastodon_api/controllers/conversation_controller.ex
index f35ec3596..69f0e3846 100644
--- a/lib/pleroma/web/mastodon_api/controllers/conversation_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/conversation_controller.ex
@@ -21,6 +21,7 @@ defmodule Pleroma.Web.MastodonAPI.ConversationController do
 
   @doc "GET /api/v1/conversations"
   def index(%{assigns: %{user: user}} = conn, params) do
+    params = stringify_pagination_params(params)
     participations = Participation.for_user_with_last_activity_id(user, params)
 
     conn
@@ -36,4 +37,20 @@ defmodule Pleroma.Web.MastodonAPI.ConversationController do
       render(conn, "participation.json", participation: participation, for: user)
     end
   end
+
+  defp stringify_pagination_params(params) do
+    atom_keys =
+      Pleroma.Pagination.page_keys()
+      |> Enum.map(&String.to_atom(&1))
+
+    str_keys =
+      params
+      |> Map.take(atom_keys)
+      |> Enum.map(fn {key, value} -> {to_string(key), value} end)
+      |> Enum.into(%{})
+
+    params
+    |> Map.delete(atom_keys)
+    |> Map.merge(str_keys)
+  end
 end
diff --git a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
index 83d997abd..f20157a5f 100644
--- a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
@@ -84,13 +84,13 @@ defmodule Pleroma.Web.MastodonAPI.StatusController do
 
   plug(
     RateLimiter,
-    [name: :status_id_action, bucket_name: "status_id_action:reblog_unreblog", params: ["id"]]
+    [name: :status_id_action, bucket_name: "status_id_action:reblog_unreblog", params: [:id]]
     when action in ~w(reblog unreblog)a
   )
 
   plug(
     RateLimiter,
-    [name: :status_id_action, bucket_name: "status_id_action:fav_unfav", params: ["id"]]
+    [name: :status_id_action, bucket_name: "status_id_action:fav_unfav", params: [:id]]
     when action in ~w(favourite unfavourite)a
   )
 
diff --git a/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex b/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex
index 958567510..f67f75430 100644
--- a/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/timeline_controller.ex
@@ -111,7 +111,7 @@ defmodule Pleroma.Web.MastodonAPI.TimelineController do
     else
       activities =
         params
-        |> Map.put("type", ["Create", "Announce"])
+        |> Map.put("type", ["Create"])
         |> Map.put("local_only", local_only)
         |> Map.put("blocking_user", user)
         |> Map.put("muting_user", user)
diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex
index 45fffaad2..04c419d2f 100644
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@@ -182,12 +182,14 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
     bot = user.actor_type in ["Application", "Service"]
 
     emojis =
-      Enum.map(user.emoji, fn {shortcode, url} ->
+      Enum.map(user.emoji, fn {shortcode, raw_url} ->
+        url = MediaProxy.url(raw_url)
+
         %{
-          "shortcode" => shortcode,
-          "url" => url,
-          "static_url" => url,
-          "visible_in_picker" => false
+          shortcode: shortcode,
+          url: url,
+          static_url: url,
+          visible_in_picker: false
         }
       end)
 
diff --git a/lib/pleroma/web/oauth/app.ex b/lib/pleroma/web/oauth/app.ex
index 6a6d5f2e2..df99472e1 100644
--- a/lib/pleroma/web/oauth/app.ex
+++ b/lib/pleroma/web/oauth/app.ex
@@ -25,12 +25,12 @@ defmodule Pleroma.Web.OAuth.App do
     timestamps()
   end
 
-  @spec changeset(App.t(), map()) :: Ecto.Changeset.t()
+  @spec changeset(t(), map()) :: Ecto.Changeset.t()
   def changeset(struct, params) do
     cast(struct, params, [:client_name, :redirect_uris, :scopes, :website, :trusted])
   end
 
-  @spec register_changeset(App.t(), map()) :: Ecto.Changeset.t()
+  @spec register_changeset(t(), map()) :: Ecto.Changeset.t()
   def register_changeset(struct, params \\ %{}) do
     changeset =
       struct
@@ -52,18 +52,19 @@ defmodule Pleroma.Web.OAuth.App do
     end
   end
 
-  @spec create(map()) :: {:ok, App.t()} | {:error, Ecto.Changeset.t()}
+  @spec create(map()) :: {:ok, t()} | {:error, Ecto.Changeset.t()}
   def create(params) do
-    with changeset <- __MODULE__.register_changeset(%__MODULE__{}, params) do
-      Repo.insert(changeset)
-    end
+    %__MODULE__{}
+    |> register_changeset(params)
+    |> Repo.insert()
   end
 
-  @spec update(map()) :: {:ok, App.t()} | {:error, Ecto.Changeset.t()}
-  def update(params) do
-    with %__MODULE__{} = app <- Repo.get(__MODULE__, params["id"]),
-         changeset <- changeset(app, params) do
-      Repo.update(changeset)
+  @spec update(pos_integer(), map()) :: {:ok, t()} | {:error, Ecto.Changeset.t()}
+  def update(id, params) do
+    with %__MODULE__{} = app <- Repo.get(__MODULE__, id) do
+      app
+      |> changeset(params)
+      |> Repo.update()
     end
   end
 
@@ -71,7 +72,7 @@ defmodule Pleroma.Web.OAuth.App do
   Gets app by attrs or create new  with attrs.
   And updates the scopes if need.
   """
-  @spec get_or_make(map(), list(String.t())) :: {:ok, App.t()} | {:error, Ecto.Changeset.t()}
+  @spec get_or_make(map(), list(String.t())) :: {:ok, t()} | {:error, Ecto.Changeset.t()}
   def get_or_make(attrs, scopes) do
     with %__MODULE__{} = app <- Repo.get_by(__MODULE__, attrs) do
       update_scopes(app, scopes)
@@ -92,7 +93,7 @@ defmodule Pleroma.Web.OAuth.App do
     |> Repo.update()
   end
 
-  @spec search(map()) :: {:ok, [App.t()], non_neg_integer()}
+  @spec search(map()) :: {:ok, [t()], non_neg_integer()}
   def search(params) do
     query = from(a in __MODULE__)
 
@@ -128,7 +129,7 @@ defmodule Pleroma.Web.OAuth.App do
     {:ok, Repo.all(query), count}
   end
 
-  @spec destroy(pos_integer()) :: {:ok, App.t()} | {:error, Ecto.Changeset.t()}
+  @spec destroy(pos_integer()) :: {:ok, t()} | {:error, Ecto.Changeset.t()}
   def destroy(id) do
     with %__MODULE__{} = app <- Repo.get(__MODULE__, id) do
       Repo.delete(app)
diff --git a/lib/pleroma/web/pleroma_api/controllers/emoji_pack_controller.ex b/lib/pleroma/web/pleroma_api/controllers/emoji_pack_controller.ex
index 2c53dcde1..d1efdeb5d 100644
--- a/lib/pleroma/web/pleroma_api/controllers/emoji_pack_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/emoji_pack_controller.ex
@@ -106,7 +106,7 @@ defmodule Pleroma.Web.PleromaAPI.EmojiPackController do
         |> put_status(:internal_server_error)
         |> json(%{error: "The requested instance does not support sharing emoji packs"})
 
-      {:error, :imvalid_checksum} ->
+      {:error, :invalid_checksum} ->
         conn
         |> put_status(:internal_server_error)
         |> json(%{error: "SHA256 for the pack doesn't match the one sent by the server"})
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 269bbabde..24c36fd5d 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -164,10 +164,10 @@ defmodule Pleroma.Web.Router do
     post("/relay", RelayController, :follow)
     delete("/relay", RelayController, :unfollow)
 
-    post("/users/invite_token", AdminAPIController, :create_invite_token)
-    get("/users/invites", AdminAPIController, :invites)
-    post("/users/revoke_invite", AdminAPIController, :revoke_invite)
-    post("/users/email_invite", AdminAPIController, :email_invite)
+    post("/users/invite_token", InviteController, :create)
+    get("/users/invites", InviteController, :index)
+    post("/users/revoke_invite", InviteController, :revoke)
+    post("/users/email_invite", InviteController, :email)
 
     get("/users/:nickname/password_reset", AdminAPIController, :get_password_reset)
     patch("/users/force_password_reset", AdminAPIController, :force_password_reset)
@@ -205,10 +205,10 @@ defmodule Pleroma.Web.Router do
     post("/reload_emoji", AdminAPIController, :reload_emoji)
     get("/stats", AdminAPIController, :stats)
 
-    get("/oauth_app", AdminAPIController, :oauth_app_list)
-    post("/oauth_app", AdminAPIController, :oauth_app_create)
-    patch("/oauth_app/:id", AdminAPIController, :oauth_app_update)
-    delete("/oauth_app/:id", AdminAPIController, :oauth_app_delete)
+    get("/oauth_app", OAuthAppController, :index)
+    post("/oauth_app", OAuthAppController, :create)
+    patch("/oauth_app/:id", OAuthAppController, :update)
+    delete("/oauth_app/:id", OAuthAppController, :delete)
   end
 
   scope "/api/pleroma/emoji", Pleroma.Web.PleromaAPI do
@@ -664,6 +664,8 @@ defmodule Pleroma.Web.Router do
     post("/auth/password", MastodonAPI.AuthController, :password_reset)
 
     get("/web/*path", MastoFEController, :index)
+
+    get("/embed/:id", EmbedController, :show)
   end
 
   scope "/proxy/", Pleroma.Web.MediaProxy do
diff --git a/lib/pleroma/web/streamer/streamer.ex b/lib/pleroma/web/streamer/streamer.ex
index 49a400df7..0cf41189b 100644
--- a/lib/pleroma/web/streamer/streamer.ex
+++ b/lib/pleroma/web/streamer/streamer.ex
@@ -136,7 +136,7 @@ defmodule Pleroma.Web.Streamer do
          false <- Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, item_host),
          false <- Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, parent_host),
          true <- thread_containment(item, user),
-         false <- CommonAPI.thread_muted?(user, item) do
+         false <- CommonAPI.thread_muted?(user, parent) do
       false
     else
       _ -> true
diff --git a/lib/pleroma/web/templates/embed/_attachment.html.eex b/lib/pleroma/web/templates/embed/_attachment.html.eex
new file mode 100644
index 000000000..7e04e9550
--- /dev/null
+++ b/lib/pleroma/web/templates/embed/_attachment.html.eex
@@ -0,0 +1,8 @@
+<%= case @mediaType do %>
+<% "audio" -> %>
+<audio src="<%= @url %>" controls="controls"></audio>
+<% "video" -> %>
+<video src="<%= @url %>" controls="controls"></video>
+<% _ -> %>
+<img src="<%= @url %>" alt="<%= @name %>" title="<%= @name %>">
+<% end %>
diff --git a/lib/pleroma/web/templates/embed/show.html.eex b/lib/pleroma/web/templates/embed/show.html.eex
new file mode 100644
index 000000000..05a3f0ee3
--- /dev/null
+++ b/lib/pleroma/web/templates/embed/show.html.eex
@@ -0,0 +1,76 @@
+<div>
+  <div class="p-author h-card">
+    <a class="u-url" rel="author noopener" href="<%= @author.ap_id %>">
+      <div class="avatar">
+        <img src="<%= User.avatar_url(@author) |> MediaProxy.url %>" width="48" height="48" alt="">
+      </div>
+      <span class="display-name" style="padding-left: 0.5em;">
+        <bdi><%= raw (@author.name |> Formatter.emojify(@author.emoji)) %></bdi>
+        <span class="nickname"><%= full_nickname(@author) %></span>
+      </span>
+    </a>
+  </div>
+
+  <div class="activity-content" >
+    <%= if status_title(@activity) != "" do %>
+      <details <%= if open_content?() do %>open<% end %>>
+        <summary><%= raw status_title(@activity) %></summary>
+        <div><%= activity_content(@activity) %></div>
+      </details>
+    <% else %>
+      <div><%= activity_content(@activity) %></div>
+    <% end %>
+    <%= for %{"name" => name, "url" => [url | _]} <- attachments(@activity) do %>
+      <div class="attachment">
+      <%= if sensitive?(@activity) do %>
+        <details class="nsfw">
+          <summary onClick="updateHeight()"><%= Gettext.gettext("sensitive media") %></summary>
+          <div class="nsfw-content">
+            <%= render("_attachment.html", %{name: name, url: url["href"],
+                                             mediaType: fetch_media_type(url)}) %>
+          </div>
+        </details>
+      <% else %>
+        <%= render("_attachment.html", %{name: name, url: url["href"],
+                                         mediaType: fetch_media_type(url)}) %>
+      <% end %>
+      </div>
+    <% end %>
+  </div>
+
+  <dl class="counts pull-right">
+    <dt><%= Gettext.gettext("replies") %></dt><dd><%= @counts.replies %></dd>
+    <dt><%= Gettext.gettext("announces") %></dt><dd><%= @counts.announces %></dd>
+    <dt><%= Gettext.gettext("likes") %></dt><dd><%= @counts.likes %></dd>
+  </dl>
+
+  <p class="date pull-left">
+    <%= link published(@activity), to: activity_url(@author, @activity) %>
+  </p>
+</div>
+
+<script>
+function updateHeight() {
+  window.requestAnimationFrame(function(){
+    var height = document.getElementsByTagName('html')[0].scrollHeight;
+
+    window.parent.postMessage({
+      type: 'setHeightPleromaEmbed',
+      id: window.parentId,
+      height: height,
+    }, '*');
+  })
+}
+
+window.addEventListener('message', function(e){
+  var data = e.data || {};
+
+  if (!window.parent || data.type !== 'setHeightPleromaEmbed') {
+    return;
+  }
+
+  window.parentId = data.id
+
+  updateHeight()
+});
+</script>
diff --git a/lib/pleroma/web/templates/layout/embed.html.eex b/lib/pleroma/web/templates/layout/embed.html.eex
new file mode 100644
index 000000000..8b905f070
--- /dev/null
+++ b/lib/pleroma/web/templates/layout/embed.html.eex
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width,initial-scale=1,minimal-ui" />
+    <title><%= Pleroma.Config.get([:instance, :name]) %></title>
+    <meta content='noindex' name='robots'>
+    <%= Phoenix.HTML.raw(assigns[:meta] || "") %>
+    <link rel="stylesheet" href="/embed.css">
+    <base target="_parent">
+  </head>
+  <body>
+    <%= render @view_module, @view_template, assigns %>
+  </body>
+</html>
diff --git a/lib/pleroma/web/views/embed_view.ex b/lib/pleroma/web/views/embed_view.ex
new file mode 100644
index 000000000..5f50bd155
--- /dev/null
+++ b/lib/pleroma/web/views/embed_view.ex
@@ -0,0 +1,74 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.EmbedView do
+  use Pleroma.Web, :view
+
+  alias Calendar.Strftime
+  alias Pleroma.Activity
+  alias Pleroma.Emoji.Formatter
+  alias Pleroma.Object
+  alias Pleroma.User
+  alias Pleroma.Web.Gettext
+  alias Pleroma.Web.MediaProxy
+  alias Pleroma.Web.Metadata.Utils
+  alias Pleroma.Web.Router.Helpers
+
+  use Phoenix.HTML
+
+  @media_types ["image", "audio", "video"]
+
+  defp fetch_media_type(%{"mediaType" => mediaType}) do
+    Utils.fetch_media_type(@media_types, mediaType)
+  end
+
+  defp open_content? do
+    Pleroma.Config.get(
+      [:frontend_configurations, :collapse_message_with_subjects],
+      true
+    )
+  end
+
+  defp full_nickname(user) do
+    %{host: host} = URI.parse(user.ap_id)
+    "@" <> user.nickname <> "@" <> host
+  end
+
+  defp status_title(%Activity{object: %Object{data: %{"name" => name}}}) when is_binary(name),
+    do: name
+
+  defp status_title(%Activity{object: %Object{data: %{"summary" => summary}}})
+       when is_binary(summary),
+       do: summary
+
+  defp status_title(_), do: nil
+
+  defp activity_content(%Activity{object: %Object{data: %{"content" => content}}}) do
+    content |> Pleroma.HTML.filter_tags() |> raw()
+  end
+
+  defp activity_content(_), do: nil
+
+  defp activity_url(%User{local: true}, activity) do
+    Helpers.o_status_url(Pleroma.Web.Endpoint, :notice, activity)
+  end
+
+  defp activity_url(%User{local: false}, %Activity{object: %Object{data: data}}) do
+    data["url"] || data["external_url"] || data["id"]
+  end
+
+  defp attachments(%Activity{object: %Object{data: %{"attachment" => attachments}}}) do
+    attachments
+  end
+
+  defp sensitive?(%Activity{object: %Object{data: %{"sensitive" => sensitive}}}) do
+    sensitive
+  end
+
+  defp published(%Activity{object: %Object{data: %{"published" => published}}}) do
+    published
+    |> NaiveDateTime.from_iso8601!()
+    |> Strftime.strftime!("%B %d, %Y, %l:%M %p")
+  end
+end
diff --git a/lib/pleroma/workers/cron/clear_oauth_token_worker.ex b/lib/pleroma/workers/cron/clear_oauth_token_worker.ex
index 341eff054..a4c3b9516 100644
--- a/lib/pleroma/workers/cron/clear_oauth_token_worker.ex
+++ b/lib/pleroma/workers/cron/clear_oauth_token_worker.ex
@@ -16,6 +16,8 @@ defmodule Pleroma.Workers.Cron.ClearOauthTokenWorker do
   def perform(_opts, _job) do
     if Config.get([:oauth2, :clean_expired_tokens], false) do
       Token.delete_expired_tokens()
+    else
+      :ok
     end
   end
 end
diff --git a/lib/pleroma/workers/cron/digest_emails_worker.ex b/lib/pleroma/workers/cron/digest_emails_worker.ex
index dd13c3b17..7f09ff3cf 100644
--- a/lib/pleroma/workers/cron/digest_emails_worker.ex
+++ b/lib/pleroma/workers/cron/digest_emails_worker.ex
@@ -37,6 +37,8 @@ defmodule Pleroma.Workers.Cron.DigestEmailsWorker do
       )
       |> Repo.all()
       |> send_emails
+    else
+      :ok
     end
   end
 
diff --git a/lib/pleroma/workers/cron/new_users_digest_worker.ex b/lib/pleroma/workers/cron/new_users_digest_worker.ex
index 9bd0a5621..5c816b3fe 100644
--- a/lib/pleroma/workers/cron/new_users_digest_worker.ex
+++ b/lib/pleroma/workers/cron/new_users_digest_worker.ex
@@ -55,7 +55,11 @@ defmodule Pleroma.Workers.Cron.NewUsersDigestWorker do
         |> Repo.all()
         |> Enum.map(&Pleroma.Emails.NewUsersDigestEmail.new_users(&1, users_and_statuses))
         |> Enum.each(&Pleroma.Emails.Mailer.deliver/1)
+      else
+        :ok
       end
+    else
+      :ok
     end
   end
 end
diff --git a/lib/pleroma/workers/cron/purge_expired_activities_worker.ex b/lib/pleroma/workers/cron/purge_expired_activities_worker.ex
index b8953dd7f..84b3b84de 100644
--- a/lib/pleroma/workers/cron/purge_expired_activities_worker.ex
+++ b/lib/pleroma/workers/cron/purge_expired_activities_worker.ex
@@ -23,6 +23,8 @@ defmodule Pleroma.Workers.Cron.PurgeExpiredActivitiesWorker do
   def perform(_opts, _job) do
     if Config.get([ActivityExpiration, :enabled]) do
       Enum.each(ActivityExpiration.due_expirations(@interval), &delete_activity/1)
+    else
+      :ok
     end
   end