Merge remote-tracking branch 'remotes/origin/develop' into output-of-relationships-in-statuses

90 files changed, 2107 insertions, 349 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7d9b10b28..8de65d752 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,21 +4,67 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [unreleased]
-### Changed
-- **Breaking:** BBCode and Markdown formatters will no longer return any `\n` and only use `<br/>` for newlines
-
 ### Removed
 - **Breaking:** removed `with_move` parameter from notifications timeline.
 
 ### Added
 - NodeInfo: `pleroma:api/v1/notifications:include_types_filter` to the `features` list.
+- NodeInfo: `pleroma_emoji_reactions` to the `features` list.
 - Configuration: `:restrict_unauthenticated` setting, restrict access for unauthenticated users to timelines (public and federate), user profiles and statuses.
 - New HTTP adapter [gun](https://github.com/ninenines/gun). Gun adapter requires minimum OTP version of 22.2 otherwise Pleroma won’t start. For hackney OTP update is not required.
 <details>
   <summary>API Changes</summary>
 - Mastodon API: Support for `include_types` in `/api/v1/notifications`.
+- Mastodon API: Added `/api/v1/notifications/:id/dismiss` endpoint.
 </details>
 
+### Fixed
+- Support pagination in conversations API
+
+## [unreleased-patch]
+
+## [2.0.2] - 2020-04-08
+### Added
+- Support for Funkwhale's `Audio` activity
+- Admin API: `PATCH /api/pleroma/admin/users/:nickname/update_credentials`
+
+### Fixed
+- Blocked/muted users still generating push notifications
+- Input textbox for bio ignoring newlines
+- OTP: Inability to use PostgreSQL databases with SSL
+- `user delete_activities` breaking when trying to delete already deleted posts
+- Incorrect URL for Funkwhale channels
+
+### Upgrade notes
+1. Restart Pleroma
+
+## [2.0.1] - 2020-03-15
+### Security
+- Static-FE: Fix remote posts not being sanitized
+
+### Fixed
+- 500 errors when no `Accept` header is present if Static-FE is enabled
+- Instance panel not being updated immediately due to wrong `Cache-Control` headers
+- Statuses posted with BBCode/Markdown having unncessary newlines in Pleroma-FE
+- OTP: Fix some settings not being migrated to in-database config properly
+- No `Cache-Control` headers on attachment/media proxy requests
+- Character limit enforcement being off by 1
+- Mastodon Streaming API: hashtag timelines not working
+
+### Changed
+- BBCode and Markdown formatters will no longer return any `\n` and only use `<br/>` for newlines
+- Mastodon API: Allow registration without email if email verification is not enabled
+
+### Upgrade notes
+#### Nginx only
+1. Remove `proxy_ignore_headers Cache-Control;` and `proxy_hide_header  Cache-Control;` from your config.
+
+#### Everyone
+1. Run database migrations (inside Pleroma directory):
+  - OTP: `./bin/pleroma_ctl migrate`
+  - From Source: `mix ecto.migrate`
+2. Restart Pleroma
+
 ## [2.0.0] - 2019-03-08
 ### Security
 - Mastodon API: Fix being able to request enormous amount of statuses in timelines leading to DoS. Now limited to 40 per request.
diff --git a/COPYING b/COPYING
index 0aede0fba..3140c8038 100644
--- a/COPYING
+++ b/COPYING
@@ -1,4 +1,4 @@
-Unless otherwise stated this repository is copyright © 2017-2019
+Unless otherwise stated this repository is copyright © 2017-2020
 Pleroma Authors <https://pleroma.social/>, and is distributed under
 The GNU Affero General Public License Version 3, you should have received a
 copy of the license file as AGPL-3.
@@ -23,7 +23,7 @@ priv/static/images/pleroma-fox-tan-shy.png
 
 ---
 
-The following files are copyright © 2017-2019 Pleroma Authors
+The following files are copyright © 2017-2020 Pleroma Authors
 <https://pleroma.social/>, and are distributed under the Creative Commons
 Attribution-ShareAlike 4.0 International license, you should have received
 a copy of the license file as CC-BY-SA-4.0.
diff --git a/coveralls.json b/coveralls.json
new file mode 100644
index 000000000..75e845ade
--- /dev/null
+++ b/coveralls.json
@@ -0,0 +1,6 @@
+{
+  "skip_files": [
+    "test/support",
+    "lib/mix/tasks/pleroma/benchmark.ex"
+  ]
+}
\ No newline at end of file
diff --git a/docs/API/admin_api.md b/docs/API/admin_api.md
index 58d702347..57fb6bc6a 100644
--- a/docs/API/admin_api.md
+++ b/docs/API/admin_api.md
@@ -392,6 +392,19 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
   - `email`
   - `name`, optional
 
+- Response:
+  - On success: `204`, empty response
+  - On failure:
+    - 400 Bad Request, JSON:
+
+    ```json
+      [
+        {
+          "error": "Appropriate error message here"
+        }
+      ]
+    ```
+
 ## `GET /api/pleroma/admin/users/:nickname/password_reset`
 
 ### Get a password reset token for a given nickname
diff --git a/docs/API/differences_in_mastoapi_responses.md b/docs/API/differences_in_mastoapi_responses.md
index dc8f54d2a..1059155cf 100644
--- a/docs/API/differences_in_mastoapi_responses.md
+++ b/docs/API/differences_in_mastoapi_responses.md
@@ -164,6 +164,7 @@ Additional parameters can be added to the JSON body/Form data:
 - `actor_type` - the type of this account.
 
 ### 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.
@@ -172,17 +173,20 @@ This information is returned in the `verify_credentials` endpoint.
 
 ## Authentication
 
-*Pleroma supports refreshing tokens.
+*Pleroma supports refreshing tokens.*
 
 `POST /oauth/token`
-Post here request with grant_type=refresh_token to obtain new access token. Returns an access token.
+
+Post here request with `grant_type=refresh_token` to obtain new access token. Returns an access token.
 
 ## Account Registration
+
 `POST /api/v1/accounts`
 
 Has theses additional parameters (which are the same as in Pleroma-API):
-    * `fullname`: optional
-    * `bio`: optional
-    * `captcha_solution`: optional, contains provider-specific captcha solution,
-    * `captcha_token`: optional, contains provider-specific captcha token
-    * `token`: invite token required when the registerations aren't public.
+
+- `fullname`: optional
+- `bio`: optional
+- `captcha_solution`: optional, contains provider-specific captcha solution,
+- `captcha_token`: optional, contains provider-specific captcha token
+- `token`: invite token required when the registrations aren't public.
diff --git a/docs/API/pleroma_api.md b/docs/API/pleroma_api.md
index 12e63ef9f..90c43c356 100644
--- a/docs/API/pleroma_api.md
+++ b/docs/API/pleroma_api.md
@@ -431,7 +431,7 @@ The status posting endpoint takes an additional parameter, `in_reply_to_conversa
 
 # Emoji Reactions
 
-Emoji reactions work a lot like favourites do. They make it possible to react to a post with a single emoji character.
+Emoji reactions work a lot like favourites do. They make it possible to react to a post with a single emoji character. To detect the presence of this feature, you can check `pleroma_emoji_reactions` entry in the features list of nodeinfo.
 
 ## `PUT /api/v1/pleroma/statuses/:id/reactions/:emoji`
 ### React to a post with a unicode emoji
diff --git a/docs/administration/CLI_tasks/emoji.md b/docs/administration/CLI_tasks/emoji.md
index efec8222c..3d524a52b 100644
--- a/docs/administration/CLI_tasks/emoji.md
+++ b/docs/administration/CLI_tasks/emoji.md
@@ -39,8 +39,8 @@ mix pleroma.emoji get-packs [option ...] <pack ...>
 mix pleroma.emoji gen-pack PACK-URL
 ```
 
-Currently, only .zip archives are recognized as remote pack files and packs are therefore assumed to be zip archives. This command is intended to run interactively and will first ask you some basic questions about the pack, then download the remote file and generate an SHA256 checksum for it, then generate an emoji file list for you. 
+Currently, only .zip archives are recognized as remote pack files and packs are therefore assumed to be zip archives. This command is intended to run interactively and will first ask you some basic questions about the pack, then download the remote file and generate an SHA256 checksum for it, then generate an emoji file list for you.
 
-  The manifest entry will either be written to a newly created `index.json` file or appended to the existing one, *replacing* the old pack with the same name if it was in the file previously.
+  The manifest entry will either be written to a newly created `pack_name.json` file (pack name is asked in questions) or appended to the existing one, *replacing* the old pack with the same name if it was in the file previously.
 
   The file list will be written to the file specified previously, *replacing* that file. You _should_ check that the file list doesn't contain anything you don't need in the pack, that is, anything that is not an emoji (the whole pack is downloaded, but only emoji files are extracted).
diff --git a/lib/mix/pleroma.ex b/lib/mix/pleroma.ex
index 4dfcc32e7..3ad6edbfb 100644
--- a/lib/mix/pleroma.ex
+++ b/lib/mix/pleroma.ex
@@ -5,7 +5,6 @@
 defmodule Mix.Pleroma do
   @doc "Common functions to be reused in mix tasks"
   def start_pleroma do
-    Mix.Task.run("app.start")
     Application.put_env(:phoenix, :serve_endpoints, false, persistent: true)
 
     if Pleroma.Config.get(:env) != :test do
diff --git a/lib/mix/tasks/pleroma/emoji.ex b/lib/mix/tasks/pleroma/emoji.ex
index 429d763c7..cdffa88b2 100644
--- a/lib/mix/tasks/pleroma/emoji.ex
+++ b/lib/mix/tasks/pleroma/emoji.ex
@@ -14,8 +14,8 @@ defmodule Mix.Tasks.Pleroma.Emoji do
 
     {options, [], []} = parse_global_opts(args)
 
-    manifest =
-      fetch_manifest(if options[:manifest], do: options[:manifest], else: default_manifest())
+    url_or_path = options[:manifest] || default_manifest()
+    manifest = fetch_manifest(url_or_path)
 
     Enum.each(manifest, fn {name, info} ->
       to_print = [
@@ -40,9 +40,9 @@ defmodule Mix.Tasks.Pleroma.Emoji do
 
     {options, pack_names, []} = parse_global_opts(args)
 
-    manifest_url = if options[:manifest], do: options[:manifest], else: default_manifest()
+    url_or_path = options[:manifest] || default_manifest()
 
-    manifest = fetch_manifest(manifest_url)
+    manifest = fetch_manifest(url_or_path)
 
     for pack_name <- pack_names do
       if Map.has_key?(manifest, pack_name) do
@@ -75,7 +75,10 @@ defmodule Mix.Tasks.Pleroma.Emoji do
         end
 
         # The url specified in files should be in the same directory
-        files_url = Path.join(Path.dirname(manifest_url), pack["files"])
+        files_url =
+          url_or_path
+          |> Path.dirname()
+          |> Path.join(pack["files"])
 
         IO.puts(
           IO.ANSI.format([
@@ -133,38 +136,51 @@ defmodule Mix.Tasks.Pleroma.Emoji do
     end
   end
 
-  def run(["gen-pack", src]) do
+  def run(["gen-pack" | args]) do
     start_pleroma()
 
-    proposed_name = Path.basename(src) |> Path.rootname()
-    name = String.trim(IO.gets("Pack name [#{proposed_name}]: "))
-    # If there's no name, use the default one
-    name = if String.length(name) > 0, do: name, else: proposed_name
+    {opts, [src], []} =
+      OptionParser.parse(
+        args,
+        strict: [
+          name: :string,
+          license: :string,
+          homepage: :string,
+          description: :string,
+          files: :string,
+          extensions: :string
+        ]
+      )
 
-    license = String.trim(IO.gets("License: "))
-    homepage = String.trim(IO.gets("Homepage: "))
-    description = String.trim(IO.gets("Description: "))
+    proposed_name = Path.basename(src) |> Path.rootname()
+    name = get_option(opts, :name, "Pack name:", proposed_name)
+    license = get_option(opts, :license, "License:")
+    homepage = get_option(opts, :homepage, "Homepage:")
+    description = get_option(opts, :description, "Description:")
 
-    proposed_files_name = "#{name}.json"
-    files_name = String.trim(IO.gets("Save file list to [#{proposed_files_name}]: "))
-    files_name = if String.length(files_name) > 0, do: files_name, else: proposed_files_name
+    proposed_files_name = "#{name}_files.json"
+    files_name = get_option(opts, :files, "Save file list to:", proposed_files_name)
 
     default_exts = [".png", ".gif"]
-    default_exts_str = Enum.join(default_exts, " ")
 
-    exts =
-      String.trim(
-        IO.gets("Emoji file extensions (separated with spaces) [#{default_exts_str}]: ")
+    custom_exts =
+      get_option(
+        opts,
+        :extensions,
+        "Emoji file extensions (separated with spaces):",
+        Enum.join(default_exts, " ")
       )
+      |> String.split(" ", trim: true)
 
     exts =
-      if String.length(exts) > 0 do
-        String.split(exts, " ")
-        |> Enum.filter(fn e -> e |> String.trim() |> String.length() > 0 end)
-      else
+      if MapSet.equal?(MapSet.new(default_exts), MapSet.new(custom_exts)) do
         default_exts
+      else
+        custom_exts
       end
 
+    IO.puts("Using #{Enum.join(exts, " ")} extensions")
+
     IO.puts("Downloading the pack and generating SHA256")
 
     binary_archive = Tesla.get!(client(), src).body
@@ -194,14 +210,16 @@ defmodule Mix.Tasks.Pleroma.Emoji do
     IO.puts("""
 
     #{files_name} has been created and contains the list of all found emojis in the pack.
-    Please review the files in the remove those not needed.
+    Please review the files in the pack and remove those not needed.
     """)
 
-    if File.exists?("index.json") do
-      existing_data = File.read!("index.json") |> Jason.decode!()
+    pack_file = "#{name}.json"
+
+    if File.exists?(pack_file) do
+      existing_data = File.read!(pack_file) |> Jason.decode!()
 
       File.write!(
-        "index.json",
+        pack_file,
         Jason.encode!(
           Map.merge(
             existing_data,
@@ -211,11 +229,11 @@ defmodule Mix.Tasks.Pleroma.Emoji do
         )
       )
 
-      IO.puts("index.json file has been update with the #{name} pack")
+      IO.puts("#{pack_file} has been updated with the #{name} pack")
     else
-      File.write!("index.json", Jason.encode!(pack_json, pretty: true))
+      File.write!(pack_file, Jason.encode!(pack_json, pretty: true))
 
-      IO.puts("index.json has been created with the #{name} pack")
+      IO.puts("#{pack_file} has been created with the #{name} pack")
     end
   end
 
diff --git a/lib/pleroma/ecto_enums.ex b/lib/pleroma/ecto_enums.ex
index d9b601223..6fc47620c 100644
--- a/lib/pleroma/ecto_enums.ex
+++ b/lib/pleroma/ecto_enums.ex
@@ -4,10 +4,16 @@
 
 import EctoEnum
 
-defenum(UserRelationshipTypeEnum,
+defenum(Pleroma.UserRelationship.Type,
   block: 1,
   mute: 2,
   reblog_mute: 3,
   notification_mute: 4,
   inverse_subscription: 5
 )
+
+defenum(Pleroma.FollowingRelationship.State,
+  follow_pending: 1,
+  follow_accept: 2,
+  follow_reject: 3
+)
diff --git a/lib/pleroma/following_relationship.ex b/lib/pleroma/following_relationship.ex
index a9538ea4e..9ccf40495 100644
--- a/lib/pleroma/following_relationship.ex
+++ b/lib/pleroma/following_relationship.ex
@@ -8,12 +8,13 @@ defmodule Pleroma.FollowingRelationship do
   import Ecto.Changeset
   import Ecto.Query
 
+  alias Ecto.Changeset
   alias FlakeId.Ecto.CompatType
   alias Pleroma.Repo
   alias Pleroma.User
 
   schema "following_relationships" do
-    field(:state, :string, default: "accept")
+    field(:state, Pleroma.FollowingRelationship.State, default: :follow_pending)
 
     belongs_to(:follower, User, type: CompatType)
     belongs_to(:following, User, type: CompatType)
@@ -27,6 +28,18 @@ defmodule Pleroma.FollowingRelationship do
     |> put_assoc(:follower, attrs.follower)
     |> put_assoc(:following, attrs.following)
     |> validate_required([:state, :follower, :following])
+    |> unique_constraint(:follower_id,
+      name: :following_relationships_follower_id_following_id_index
+    )
+    |> validate_not_self_relationship()
+  end
+
+  def state_to_enum(state) when state in ["pending", "accept", "reject"] do
+    String.to_existing_atom("follow_#{state}")
+  end
+
+  def state_to_enum(state) do
+    raise "State is not convertible to Pleroma.FollowingRelationship.State: #{state}"
   end
 
   def get(%User{} = follower, %User{} = following) do
@@ -35,7 +48,7 @@ defmodule Pleroma.FollowingRelationship do
     |> Repo.one()
   end
 
-  def update(follower, following, "reject"), do: unfollow(follower, following)
+  def update(follower, following, :follow_reject), do: unfollow(follower, following)
 
   def update(%User{} = follower, %User{} = following, state) do
     case get(follower, following) do
@@ -50,7 +63,7 @@ defmodule Pleroma.FollowingRelationship do
     end
   end
 
-  def follow(%User{} = follower, %User{} = following, state \\ "accept") do
+  def follow(%User{} = follower, %User{} = following, state \\ :follow_accept) do
     %__MODULE__{}
     |> changeset(%{follower: follower, following: following, state: state})
     |> Repo.insert(on_conflict: :nothing)
@@ -80,7 +93,7 @@ defmodule Pleroma.FollowingRelationship do
   def get_follow_requests(%User{id: id}) do
     __MODULE__
     |> join(:inner, [r], f in assoc(r, :follower))
-    |> where([r], r.state == "pending")
+    |> where([r], r.state == ^:follow_pending)
     |> where([r], r.following_id == ^id)
     |> select([r, f], f)
     |> Repo.all()
@@ -88,7 +101,7 @@ defmodule Pleroma.FollowingRelationship do
 
   def following?(%User{id: follower_id}, %User{id: followed_id}) do
     __MODULE__
-    |> where(follower_id: ^follower_id, following_id: ^followed_id, state: "accept")
+    |> where(follower_id: ^follower_id, following_id: ^followed_id, state: ^:follow_accept)
     |> Repo.exists?()
   end
 
@@ -97,7 +110,7 @@ defmodule Pleroma.FollowingRelationship do
       __MODULE__
       |> join(:inner, [r], u in User, on: r.following_id == u.id)
       |> where([r], r.follower_id == ^user.id)
-      |> where([r], r.state == "accept")
+      |> where([r], r.state == ^:follow_accept)
       |> select([r, u], u.follower_address)
       |> Repo.all()
 
@@ -157,4 +170,30 @@ defmodule Pleroma.FollowingRelationship do
       fr -> fr.follower_id == follower.id and fr.following_id == following.id
     end)
   end
+
+  defp validate_not_self_relationship(%Changeset{} = changeset) do
+    changeset
+    |> validate_follower_id_following_id_inequality()
+    |> validate_following_id_follower_id_inequality()
+  end
+
+  defp validate_follower_id_following_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :follower_id, fn _, follower_id ->
+      if follower_id == get_field(changeset, :following_id) do
+        [source_id: "can't be equal to following_id"]
+      else
+        []
+      end
+    end)
+  end
+
+  defp validate_following_id_follower_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :following_id, fn _, following_id ->
+      if following_id == get_field(changeset, :follower_id) do
+        [target_id: "can't be equal to follower_id"]
+      else
+        []
+      end
+    end)
+  end
 end
diff --git a/lib/pleroma/formatter.ex b/lib/pleroma/formatter.ex
index e2a658cb3..c44e7fc8b 100644
--- a/lib/pleroma/formatter.ex
+++ b/lib/pleroma/formatter.ex
@@ -35,9 +35,19 @@ defmodule Pleroma.Formatter do
         nickname_text = get_nickname_text(nickname, opts)
 
         link =
-          ~s(<span class="h-card"><a data-user="#{id}" class="u-url mention" href="#{ap_id}" rel="ugc">@<span>#{
-            nickname_text
-          }</span></a></span>)
+          Phoenix.HTML.Tag.content_tag(
+            :span,
+            Phoenix.HTML.Tag.content_tag(
+              :a,
+              ["@", Phoenix.HTML.Tag.content_tag(:span, nickname_text)],
+              "data-user": id,
+              class: "u-url mention",
+              href: ap_id,
+              rel: "ugc"
+            ),
+            class: "h-card"
+          )
+          |> Phoenix.HTML.safe_to_string()
 
         {link, %{acc | mentions: MapSet.put(acc.mentions, {"@" <> nickname, user})}}
 
@@ -49,7 +59,15 @@ defmodule Pleroma.Formatter do
   def hashtag_handler("#" <> tag = tag_text, _buffer, _opts, acc) do
     tag = String.downcase(tag)
     url = "#{Pleroma.Web.base_url()}/tag/#{tag}"
-    link = ~s(<a class="hashtag" data-tag="#{tag}" href="#{url}" rel="tag ugc">#{tag_text}</a>)
+
+    link =
+      Phoenix.HTML.Tag.content_tag(:a, tag_text,
+        class: "hashtag",
+        "data-tag": tag,
+        href: url,
+        rel: "tag ugc"
+      )
+      |> Phoenix.HTML.safe_to_string()
 
     {link, %{acc | tags: MapSet.put(acc.tags, {tag_text, tag})}}
   end
diff --git a/lib/pleroma/gun/conn.ex b/lib/pleroma/gun/conn.ex
index 20823a765..cd25a2e74 100644
--- a/lib/pleroma/gun/conn.ex
+++ b/lib/pleroma/gun/conn.ex
@@ -49,8 +49,10 @@ defmodule Pleroma.Gun.Conn do
 
     key = "#{uri.scheme}:#{uri.host}:#{uri.port}"
 
+    max_connections = pool_opts[:max_connections] || 250
+
     conn_pid =
-      if Connections.count(name) < opts[:max_connection] do
+      if Connections.count(name) < max_connections do
         do_open(uri, opts)
       else
         close_least_used_and_do_open(name, uri, opts)
diff --git a/lib/pleroma/object/containment.ex b/lib/pleroma/object/containment.ex
index 9ae6a5600..99608b8a5 100644
--- a/lib/pleroma/object/containment.ex
+++ b/lib/pleroma/object/containment.ex
@@ -32,6 +32,18 @@ defmodule Pleroma.Object.Containment do
     get_actor(%{"actor" => actor})
   end
 
+  def get_object(%{"object" => id}) when is_binary(id) do
+    id
+  end
+
+  def get_object(%{"object" => %{"id" => id}}) when is_binary(id) do
+    id
+  end
+
+  def get_object(_) do
+    nil
+  end
+
   # TODO: We explicitly allow 'tag' URIs through, due to references to legacy OStatus
   # objects being present in the test suite environment.  Once these objects are
   # removed, please also remove this.
diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index ff828aa17..670ce397b 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -16,6 +16,7 @@ defmodule Pleroma.User do
   alias Pleroma.Conversation.Participation
   alias Pleroma.Delivery
   alias Pleroma.FollowingRelationship
+  alias Pleroma.Formatter
   alias Pleroma.HTML
   alias Pleroma.Keys
   alias Pleroma.Notification
@@ -452,7 +453,7 @@ defmodule Pleroma.User do
 
       fields =
         raw_fields
-        |> Enum.map(fn f -> Map.update!(f, "value", &AutoLinker.link(&1)) end)
+        |> Enum.map(fn f -> Map.update!(f, "value", &parse_fields(&1)) end)
 
       changeset
       |> put_change(:raw_fields, raw_fields)
@@ -462,6 +463,12 @@ defmodule Pleroma.User do
     end
   end
 
+  defp parse_fields(value) do
+    value
+    |> Formatter.linkify(mentions_format: :full)
+    |> elem(0)
+  end
+
   defp put_change_if_present(changeset, map_field, value_function) do
     if value = get_change(changeset, map_field) do
       with {:ok, new_value} <- value_function.(value) do
@@ -693,7 +700,7 @@ defmodule Pleroma.User do
 
   @spec maybe_direct_follow(User.t(), User.t()) :: {:ok, User.t()} | {:error, String.t()}
   def maybe_direct_follow(%User{} = follower, %User{local: true, locked: true} = followed) do
-    follow(follower, followed, "pending")
+    follow(follower, followed, :follow_pending)
   end
 
   def maybe_direct_follow(%User{} = follower, %User{local: true} = followed) do
@@ -713,14 +720,14 @@ defmodule Pleroma.User do
   def follow_all(follower, followeds) do
     followeds
     |> Enum.reject(fn followed -> blocks?(follower, followed) || blocks?(followed, follower) end)
-    |> Enum.each(&follow(follower, &1, "accept"))
+    |> Enum.each(&follow(follower, &1, :follow_accept))
 
     set_cache(follower)
   end
 
   defdelegate following(user), to: FollowingRelationship
 
-  def follow(%User{} = follower, %User{} = followed, state \\ "accept") do
+  def follow(%User{} = follower, %User{} = followed, state \\ :follow_accept) do
     deny_follow_blocked = Pleroma.Config.get([:user, :deny_follow_blocked])
 
     cond do
@@ -747,7 +754,7 @@ defmodule Pleroma.User do
 
   def unfollow(%User{} = follower, %User{} = followed) do
     case get_follow_state(follower, followed) do
-      state when state in ["accept", "pending"] ->
+      state when state in [:follow_pending, :follow_accept] ->
         FollowingRelationship.unfollow(follower, followed)
         {:ok, followed} = update_follower_count(followed)
 
@@ -765,6 +772,7 @@ defmodule Pleroma.User do
 
   defdelegate following?(follower, followed), to: FollowingRelationship
 
+  @doc "Returns follow state as Pleroma.FollowingRelationship.State value"
   def get_follow_state(%User{} = follower, %User{} = following) do
     following_relationship = FollowingRelationship.get(follower, following)
     get_follow_state(follower, following, following_relationship)
@@ -778,8 +786,11 @@ defmodule Pleroma.User do
     case {following_relationship, following.local} do
       {nil, false} ->
         case Utils.fetch_latest_follow(follower, following) do
-          %{data: %{"state" => state}} when state in ["pending", "accept"] -> state
-          _ -> nil
+          %Activity{data: %{"state" => state}} when state in ["pending", "accept"] ->
+            FollowingRelationship.state_to_enum(state)
+
+          _ ->
+            nil
         end
 
       {%{state: state}, _} ->
@@ -1278,7 +1289,7 @@ defmodule Pleroma.User do
 
   def blocks?(%User{} = user, %User{} = target) do
     blocks_user?(user, target) ||
-      (!User.following?(user, target) && blocks_domain?(user, target))
+      (blocks_domain?(user, target) and not User.following?(user, target))
   end
 
   def blocks_user?(%User{} = user, %User{} = target) do
@@ -1979,17 +1990,6 @@ defmodule Pleroma.User do
 
   def fields(%{fields: fields}), do: fields
 
-  def sanitized_fields(%User{} = user) do
-    user
-    |> User.fields()
-    |> Enum.map(fn %{"name" => name, "value" => value} ->
-      %{
-        "name" => name,
-        "value" => Pleroma.HTML.filter_tags(value, Pleroma.HTML.Scrubber.LinksOnly)
-      }
-    end)
-  end
-
   def validate_fields(changeset, remote? \\ false) do
     limit_name = if remote?, do: :max_remote_account_fields, else: :max_account_fields
     limit = Pleroma.Config.get([:instance, limit_name], 0)
diff --git a/lib/pleroma/user/query.ex b/lib/pleroma/user/query.ex
index 884e33039..ec88088cf 100644
--- a/lib/pleroma/user/query.ex
+++ b/lib/pleroma/user/query.ex
@@ -148,7 +148,7 @@ defmodule Pleroma.User.Query do
       as: :relationships,
       on: r.following_id == ^id and r.follower_id == u.id
     )
-    |> where([relationships: r], r.state == "accept")
+    |> where([relationships: r], r.state == ^:follow_accept)
   end
 
   defp compose_query({:friends, %User{id: id}}, query) do
@@ -158,7 +158,7 @@ defmodule Pleroma.User.Query do
       as: :relationships,
       on: r.following_id == u.id and r.follower_id == ^id
     )
-    |> where([relationships: r], r.state == "accept")
+    |> where([relationships: r], r.state == ^:follow_accept)
   end
 
   defp compose_query({:recipients_from_activity, to}, query) do
@@ -173,7 +173,7 @@ defmodule Pleroma.User.Query do
     )
     |> where(
       [u, following: f, relationships: r],
-      u.ap_id in ^to or (f.follower_address in ^to and r.state == "accept")
+      u.ap_id in ^to or (f.follower_address in ^to and r.state == ^:follow_accept)
     )
     |> distinct(true)
   end
diff --git a/lib/pleroma/user_relationship.ex b/lib/pleroma/user_relationship.ex
index d42dc250e..235ad427c 100644
--- a/lib/pleroma/user_relationship.ex
+++ b/lib/pleroma/user_relationship.ex
@@ -8,6 +8,7 @@ defmodule Pleroma.UserRelationship do
   import Ecto.Changeset
   import Ecto.Query
 
+  alias Ecto.Changeset
   alias Pleroma.FollowingRelationship
   alias Pleroma.Repo
   alias Pleroma.User
@@ -16,12 +17,12 @@ defmodule Pleroma.UserRelationship do
   schema "user_relationships" do
     belongs_to(:source, User, type: FlakeId.Ecto.CompatType)
     belongs_to(:target, User, type: FlakeId.Ecto.CompatType)
-    field(:relationship_type, UserRelationshipTypeEnum)
+    field(:relationship_type, Pleroma.UserRelationship.Type)
 
     timestamps(updated_at: false)
   end
 
-  for relationship_type <- Keyword.keys(UserRelationshipTypeEnum.__enum_map__()) do
+  for relationship_type <- Keyword.keys(Pleroma.UserRelationship.Type.__enum_map__()) do
     # `def create_block/2`, `def create_mute/2`, `def create_reblog_mute/2`,
     #   `def create_notification_mute/2`, `def create_inverse_subscription/2`
     def unquote(:"create_#{relationship_type}")(source, target),
@@ -40,7 +41,7 @@ defmodule Pleroma.UserRelationship do
 
   def user_relationship_types, do: Keyword.keys(user_relationship_mappings())
 
-  def user_relationship_mappings, do: UserRelationshipTypeEnum.__enum_map__()
+  def user_relationship_mappings, do: Pleroma.UserRelationship.Type.__enum_map__()
 
   def changeset(%UserRelationship{} = user_relationship, params \\ %{}) do
     user_relationship
@@ -157,18 +158,26 @@ defmodule Pleroma.UserRelationship do
     %{user_relationships: user_relationships, following_relationships: following_relationships}
   end
 
-  defp validate_not_self_relationship(%Ecto.Changeset{} = changeset) do
+  defp validate_not_self_relationship(%Changeset{} = changeset) do
     changeset
-    |> validate_change(:target_id, fn _, target_id ->
-      if target_id == get_field(changeset, :source_id) do
-        [target_id: "can't be equal to source_id"]
+    |> validate_source_id_target_id_inequality()
+    |> validate_target_id_source_id_inequality()
+  end
+
+  defp validate_source_id_target_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :source_id, fn _, source_id ->
+      if source_id == get_field(changeset, :target_id) do
+        [source_id: "can't be equal to target_id"]
       else
         []
       end
     end)
-    |> validate_change(:source_id, fn _, source_id ->
-      if source_id == get_field(changeset, :target_id) do
-        [source_id: "can't be equal to target_id"]
+  end
+
+  defp validate_target_id_source_id_inequality(%Changeset{} = changeset) do
+    validate_change(changeset, :target_id, fn _, target_id ->
+      if target_id == get_field(changeset, :source_id) do
+        [target_id: "can't be equal to source_id"]
       else
         []
       end
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 53b6ad654..86b105b7f 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -125,6 +125,21 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   def increase_poll_votes_if_vote(_create_data), do: :noop
 
+  @spec persist(map(), keyword()) :: {:ok, Activity.t() | Object.t()}
+  def persist(object, meta) do
+    with local <- Keyword.fetch!(meta, :local),
+         {recipients, _, _} <- get_recipients(object),
+         {:ok, activity} <-
+           Repo.insert(%Activity{
+             data: object,
+             local: local,
+             recipients: recipients,
+             actor: object["actor"]
+           }) do
+      {:ok, activity, meta}
+    end
+  end
+
   @spec insert(map(), boolean(), boolean(), boolean()) :: {:ok, Activity.t()} | {:error, any()}
   def insert(map, local \\ true, fake \\ false, bypass_actor_check \\ false) when is_map(map) do
     with nil <- Activity.normalize(map),
@@ -706,7 +721,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
-  defp fetch_activities_for_context_query(context, opts) do
+  def fetch_activities_for_context_query(context, opts) do
     public = [Constants.as_public()]
 
     recipients =
diff --git a/lib/pleroma/web/activity_pub/builder.ex b/lib/pleroma/web/activity_pub/builder.ex
new file mode 100644
index 000000000..429a510b8
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/builder.ex
@@ -0,0 +1,43 @@
+defmodule Pleroma.Web.ActivityPub.Builder do
+  @moduledoc """
+  This module builds the objects. Meant to be used for creating local objects.
+
+  This module encodes our addressing policies and general shape of our objects.
+  """
+
+  alias Pleroma.Object
+  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.Utils
+  alias Pleroma.Web.ActivityPub.Visibility
+
+  @spec like(User.t(), Object.t()) :: {:ok, map(), keyword()}
+  def like(actor, object) do
+    object_actor = User.get_cached_by_ap_id(object.data["actor"])
+
+    # Address the actor of the object, and our actor's follower collection if the post is public.
+    to =
+      if Visibility.is_public?(object) do
+        [actor.follower_address, object.data["actor"]]
+      else
+        [object.data["actor"]]
+      end
+
+    # CC everyone who's been addressed in the object, except ourself and the object actor's
+    # follower collection
+    cc =
+      (object.data["to"] ++ (object.data["cc"] || []))
+      |> List.delete(actor.ap_id)
+      |> List.delete(object_actor.follower_address)
+
+    {:ok,
+     %{
+       "id" => Utils.generate_activity_id(),
+       "actor" => actor.ap_id,
+       "type" => "Like",
+       "object" => object.data["id"],
+       "to" => to,
+       "cc" => cc,
+       "context" => object.data["context"]
+     }, []}
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/object_validator.ex b/lib/pleroma/web/activity_pub/object_validator.ex
new file mode 100644
index 000000000..dc4bce059
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/object_validator.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.Web.ActivityPub.ObjectValidator do
+  @moduledoc """
+  This module is responsible for validating an object (which can be an activity)
+  and checking if it is both well formed and also compatible with our view of
+  the system.
+  """
+
+  alias Pleroma.Object
+  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
+
+  @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
+  def validate(object, meta)
+
+  def validate(%{"type" => "Like"} = object, meta) do
+    with {:ok, object} <-
+           object |> LikeValidator.cast_and_validate() |> Ecto.Changeset.apply_action(:insert) do
+      object = stringify_keys(object |> Map.from_struct())
+      {:ok, object, meta}
+    end
+  end
+
+  def stringify_keys(object) do
+    object
+    |> Map.new(fn {key, val} -> {to_string(key), val} end)
+  end
+
+  def fetch_actor_and_object(object) do
+    User.get_or_fetch_by_ap_id(object["actor"])
+    Object.normalize(object["object"])
+    :ok
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/object_validators/common_validations.ex b/lib/pleroma/web/activity_pub/object_validators/common_validations.ex
new file mode 100644
index 000000000..b479c3918
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/object_validators/common_validations.ex
@@ -0,0 +1,32 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations do
+  import Ecto.Changeset
+
+  alias Pleroma.Object
+  alias Pleroma.User
+
+  def validate_actor_presence(cng, field_name \\ :actor) do
+    cng
+    |> validate_change(field_name, fn field_name, actor ->
+      if User.get_cached_by_ap_id(actor) do
+        []
+      else
+        [{field_name, "can't find user"}]
+      end
+    end)
+  end
+
+  def validate_object_presence(cng, field_name \\ :object) do
+    cng
+    |> validate_change(field_name, fn field_name, object ->
+      if Object.get_cached_by_ap_id(object) do
+        []
+      else
+        [{field_name, "can't find object"}]
+      end
+    end)
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/object_validators/create_validator.ex b/lib/pleroma/web/activity_pub/object_validators/create_validator.ex
new file mode 100644
index 000000000..926804ce7
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/object_validators/create_validator.ex
@@ -0,0 +1,30 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.CreateNoteValidator do
+  use Ecto.Schema
+
+  alias Pleroma.Web.ActivityPub.ObjectValidators.NoteValidator
+  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
+
+  import Ecto.Changeset
+
+  @primary_key false
+
+  embedded_schema do
+    field(:id, Types.ObjectID, primary_key: true)
+    field(:actor, Types.ObjectID)
+    field(:type, :string)
+    field(:to, {:array, :string})
+    field(:cc, {:array, :string})
+    field(:bto, {:array, :string}, default: [])
+    field(:bcc, {:array, :string}, default: [])
+
+    embeds_one(:object, NoteValidator)
+  end
+
+  def cast_data(data) do
+    cast(%__MODULE__{}, data, __schema__(:fields))
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/object_validators/like_validator.ex b/lib/pleroma/web/activity_pub/object_validators/like_validator.ex
new file mode 100644
index 000000000..49546ceaa
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/object_validators/like_validator.ex
@@ -0,0 +1,57 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do
+  use Ecto.Schema
+
+  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
+  alias Pleroma.Web.ActivityPub.Utils
+
+  import Ecto.Changeset
+  import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
+
+  @primary_key false
+
+  embedded_schema do
+    field(:id, Types.ObjectID, primary_key: true)
+    field(:type, :string)
+    field(:object, Types.ObjectID)
+    field(:actor, Types.ObjectID)
+    field(:context, :string)
+    field(:to, {:array, :string})
+    field(:cc, {:array, :string})
+  end
+
+  def cast_and_validate(data) do
+    data
+    |> cast_data()
+    |> validate_data()
+  end
+
+  def cast_data(data) do
+    %__MODULE__{}
+    |> cast(data, [:id, :type, :object, :actor, :context, :to, :cc])
+  end
+
+  def validate_data(data_cng) do
+    data_cng
+    |> validate_inclusion(:type, ["Like"])
+    |> validate_required([:id, :type, :object, :actor, :context, :to, :cc])
+    |> validate_actor_presence()
+    |> validate_object_presence()
+    |> validate_existing_like()
+  end
+
+  def validate_existing_like(%{changes: %{actor: actor, object: object}} = cng) do
+    if Utils.get_existing_like(actor, %{data: %{"id" => object}}) do
+      cng
+      |> add_error(:actor, "already liked this object")
+      |> add_error(:object, "already liked by this actor")
+    else
+      cng
+    end
+  end
+
+  def validate_existing_like(cng), do: cng
+end
diff --git a/lib/pleroma/web/activity_pub/object_validators/note_validator.ex b/lib/pleroma/web/activity_pub/object_validators/note_validator.ex
new file mode 100644
index 000000000..c95b622e4
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/object_validators/note_validator.ex
@@ -0,0 +1,63 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.NoteValidator do
+  use Ecto.Schema
+
+  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
+
+  import Ecto.Changeset
+
+  @primary_key false
+
+  embedded_schema do
+    field(:id, Types.ObjectID, primary_key: true)
+    field(:to, {:array, :string}, default: [])
+    field(:cc, {:array, :string}, default: [])
+    field(:bto, {:array, :string}, default: [])
+    field(:bcc, {:array, :string}, default: [])
+    # TODO: Write type
+    field(:tag, {:array, :map}, default: [])
+    field(:type, :string)
+    field(:content, :string)
+    field(:context, :string)
+    field(:actor, Types.ObjectID)
+    field(:attributedTo, Types.ObjectID)
+    field(:summary, :string)
+    field(:published, Types.DateTime)
+    # TODO: Write type
+    field(:emoji, :map, default: %{})
+    field(:sensitive, :boolean, default: false)
+    # TODO: Write type
+    field(:attachment, {:array, :map}, default: [])
+    field(:replies_count, :integer, default: 0)
+    field(:like_count, :integer, default: 0)
+    field(:announcement_count, :integer, default: 0)
+    field(:inRepyTo, :string)
+
+    field(:likes, {:array, :string}, default: [])
+    field(:announcements, {:array, :string}, default: [])
+
+    # see if needed
+    field(:conversation, :string)
+    field(:context_id, :string)
+  end
+
+  def cast_and_validate(data) do
+    data
+    |> cast_data()
+    |> validate_data()
+  end
+
+  def cast_data(data) do
+    %__MODULE__{}
+    |> cast(data, __schema__(:fields))
+  end
+
+  def validate_data(data_cng) do
+    data_cng
+    |> validate_inclusion(:type, ["Note"])
+    |> validate_required([:id, :actor, :to, :cc, :type, :content, :context])
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/object_validators/types/date_time.ex b/lib/pleroma/web/activity_pub/object_validators/types/date_time.ex
new file mode 100644
index 000000000..4f412fcde
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/object_validators/types/date_time.ex
@@ -0,0 +1,34 @@
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.Types.DateTime do
+  @moduledoc """
+  The AP standard defines the date fields in AP as xsd:DateTime. Elixir's
+  DateTime can't parse this, but it can parse the related iso8601. This
+  module punches the date until it looks like iso8601 and normalizes to
+  it.
+
+  DateTimes without a timezone offset are treated as UTC.
+
+  Reference: https://www.w3.org/TR/activitystreams-vocabulary/#dfn-published
+  """
+  use Ecto.Type
+
+  def type, do: :string
+
+  def cast(datetime) when is_binary(datetime) do
+    with {:ok, datetime, _} <- DateTime.from_iso8601(datetime) do
+      {:ok, DateTime.to_iso8601(datetime)}
+    else
+      {:error, :missing_offset} -> cast("#{datetime}Z")
+      _e -> :error
+    end
+  end
+
+  def cast(_), do: :error
+
+  def dump(data) do
+    {:ok, data}
+  end
+
+  def load(data) do
+    {:ok, data}
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/object_validators/types/object_id.ex b/lib/pleroma/web/activity_pub/object_validators/types/object_id.ex
new file mode 100644
index 000000000..f6e749b33
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/object_validators/types/object_id.ex
@@ -0,0 +1,29 @@
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.Types.ObjectID do
+  use Ecto.Type
+
+  def type, do: :string
+
+  def cast(object) when is_binary(object) do
+    # Host has to be present and scheme has to be an http scheme (for now)
+    case URI.parse(object) do
+      %URI{host: nil} -> :error
+      %URI{host: ""} -> :error
+      %URI{scheme: scheme} when scheme in ["https", "http"] -> {:ok, object}
+      _ -> :error
+    end
+  end
+
+  def cast(%{"id" => object}), do: cast(object)
+
+  def cast(_) do
+    :error
+  end
+
+  def dump(data) do
+    {:ok, data}
+  end
+
+  def load(data) do
+    {:ok, data}
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/pipeline.ex b/lib/pleroma/web/activity_pub/pipeline.ex
new file mode 100644
index 000000000..7ccee54c9
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/pipeline.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.ActivityPub.Pipeline do
+  alias Pleroma.Activity
+  alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.MRF
+  alias Pleroma.Web.ActivityPub.ObjectValidator
+  alias Pleroma.Web.ActivityPub.SideEffects
+  alias Pleroma.Web.Federator
+
+  @spec common_pipeline(map(), keyword()) :: {:ok, Activity.t(), keyword()} | {:error, any()}
+  def common_pipeline(object, meta) do
+    with {_, {:ok, validated_object, meta}} <-
+           {:validate_object, ObjectValidator.validate(object, meta)},
+         {_, {:ok, mrfd_object}} <- {:mrf_object, MRF.filter(validated_object)},
+         {_, {:ok, %Activity{} = activity, meta}} <-
+           {:persist_object, ActivityPub.persist(mrfd_object, meta)},
+         {_, {:ok, %Activity{} = activity, meta}} <-
+           {:execute_side_effects, SideEffects.handle(activity, meta)},
+         {_, {:ok, _}} <- {:federation, maybe_federate(activity, meta)} do
+      {:ok, activity, meta}
+    else
+      {:mrf_object, {:reject, _}} -> {:ok, nil, meta}
+      e -> {:error, e}
+    end
+  end
+
+  defp maybe_federate(activity, meta) do
+    with {:ok, local} <- Keyword.fetch(meta, :local) do
+      if local do
+        Federator.publish(activity)
+        {:ok, :federated}
+      else
+        {:ok, :not_federated}
+      end
+    else
+      _e -> {:error, :badarg}
+    end
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/side_effects.ex b/lib/pleroma/web/activity_pub/side_effects.ex
new file mode 100644
index 000000000..666a4e310
--- /dev/null
+++ b/lib/pleroma/web/activity_pub/side_effects.ex
@@ -0,0 +1,28 @@
+defmodule Pleroma.Web.ActivityPub.SideEffects do
+  @moduledoc """
+  This module looks at an inserted object and executes the side effects that it
+  implies. For example, a `Like` activity will increase the like count on the
+  liked object, a `Follow` activity will add the user to the follower
+  collection, and so on.
+  """
+  alias Pleroma.Notification
+  alias Pleroma.Object
+  alias Pleroma.Web.ActivityPub.Utils
+
+  def handle(object, meta \\ [])
+
+  # Tasks this handles:
+  # - Add like to object
+  # - Set up notification
+  def handle(%{data: %{"type" => "Like"}} = object, meta) do
+    liked_object = Object.get_by_ap_id(object.data["object"])
+    Utils.add_like_to_object(object, liked_object)
+    Notification.create_notifications(object)
+    {:ok, object, meta}
+  end
+
+  # Nothing to do
+  def handle(object, meta) do
+    {:ok, object, meta}
+  end
+end
diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index 09bd9a442..39feae285 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -13,6 +13,9 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   alias Pleroma.Repo
   alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.ObjectValidator
+  alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
+  alias Pleroma.Web.ActivityPub.Pipeline
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.ActivityPub.Visibility
   alias Pleroma.Web.Federator
@@ -202,16 +205,46 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     |> Map.put("conversation", context)
   end
 
+  defp add_if_present(map, _key, nil), do: map
+
+  defp add_if_present(map, key, value) do
+    Map.put(map, key, value)
+  end
+
   def fix_attachments(%{"attachment" => attachment} = object) when is_list(attachment) do
     attachments =
       Enum.map(attachment, fn data ->
-        media_type = data["mediaType"] || data["mimeType"]
-        href = data["url"] || data["href"]
-        url = [%{"type" => "Link", "mediaType" => media_type, "href" => href}]
+        url =
+          cond do
+            is_list(data["url"]) -> List.first(data["url"])
+            is_map(data["url"]) -> data["url"]
+            true -> nil
+          end
 
-        data
-        |> Map.put("mediaType", media_type)
-        |> Map.put("url", url)
+        media_type =
+          cond do
+            is_map(url) && is_binary(url["mediaType"]) -> url["mediaType"]
+            is_binary(data["mediaType"]) -> data["mediaType"]
+            is_binary(data["mimeType"]) -> data["mimeType"]
+            true -> nil
+          end
+
+        href =
+          cond do
+            is_map(url) && is_binary(url["href"]) -> url["href"]
+            is_binary(data["url"]) -> data["url"]
+            is_binary(data["href"]) -> data["href"]
+          end
+
+        attachment_url =
+          %{"href" => href}
+          |> add_if_present("mediaType", media_type)
+          |> add_if_present("type", Map.get(url || %{}, "type"))
+
+        %{"url" => [attachment_url]}
+        |> add_if_present("mediaType", media_type)
+        |> add_if_present("type", data["type"])
+        |> add_if_present("name", data["name"])
       end)
 
     Map.put(object, "attachment", attachments)
@@ -491,7 +524,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
            {_, {:ok, follower}} <- {:follow, User.follow(follower, followed)},
            {_, {:ok, _}} <-
              {:follow_state_update, Utils.update_follow_state_for_all(activity, "accept")},
-           {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "accept") do
+           {:ok, _relationship} <-
+             FollowingRelationship.update(follower, followed, :follow_accept) do
         ActivityPub.accept(%{
           to: [follower.ap_id],
           actor: followed,
@@ -501,7 +535,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
       else
         {:user_blocked, true} ->
           {:ok, _} = Utils.update_follow_state_for_all(activity, "reject")
-          {:ok, _relationship} = FollowingRelationship.update(follower, followed, "reject")
+          {:ok, _relationship} = FollowingRelationship.update(follower, followed, :follow_reject)
 
           ActivityPub.reject(%{
             to: [follower.ap_id],
@@ -512,7 +546,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
 
         {:follow, {:error, _}} ->
           {:ok, _} = Utils.update_follow_state_for_all(activity, "reject")
-          {:ok, _relationship} = FollowingRelationship.update(follower, followed, "reject")
+          {:ok, _relationship} = FollowingRelationship.update(follower, followed, :follow_reject)
 
           ActivityPub.reject(%{
             to: [follower.ap_id],
@@ -522,7 +556,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
           })
 
         {:user_locked, true} ->
-          {:ok, _relationship} = FollowingRelationship.update(follower, followed, "pending")
+          {:ok, _relationship} = FollowingRelationship.update(follower, followed, :follow_pending)
           :noop
       end
 
@@ -542,7 +576,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
          {:ok, follow_activity} <- get_follow_activity(follow_object, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
          %User{local: true} = follower <- User.get_cached_by_ap_id(follow_activity.data["actor"]),
-         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "accept") do
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_accept) do
       ActivityPub.accept(%{
         to: follow_activity.data["to"],
         type: "Accept",
@@ -565,7 +599,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
          {:ok, follow_activity} <- get_follow_activity(follow_object, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject"),
          %User{local: true} = follower <- User.get_cached_by_ap_id(follow_activity.data["actor"]),
-         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "reject"),
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_reject),
          {:ok, activity} <-
            ActivityPub.reject(%{
              to: follow_activity.data["to"],
@@ -609,17 +643,20 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
     |> handle_incoming(options)
   end
 
-  def handle_incoming(
-        %{"type" => "Like", "object" => object_id, "actor" => _actor, "id" => id} = data,
-        _options
-      ) do
-    with actor <- Containment.get_actor(data),
-         {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
-         {:ok, object} <- get_obj_helper(object_id),
-         {:ok, activity, _object} <- ActivityPub.like(actor, object, id, false) do
+  def handle_incoming(%{"type" => "Like"} = data, _options) do
+    with {_, {:ok, cast_data_sym}} <-
+           {:casting_data,
+            data |> LikeValidator.cast_data() |> Ecto.Changeset.apply_action(:insert)},
+         cast_data = ObjectValidator.stringify_keys(Map.from_struct(cast_data_sym)),
+         :ok <- ObjectValidator.fetch_actor_and_object(cast_data),
+         {_, {:ok, cast_data}} <- {:ensure_context_presence, ensure_context_presence(cast_data)},
+         {_, {:ok, cast_data}} <-
+           {:ensure_recipients_presence, ensure_recipients_presence(cast_data)},
+         {_, {:ok, activity, _meta}} <-
+           {:common_pipeline, Pipeline.common_pipeline(cast_data, local: false)} do
       {:ok, activity}
     else
-      _e -> :error
+      e -> {:error, e}
     end
   end
 
@@ -1243,4 +1280,45 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   def maybe_fix_user_url(data), do: data
 
   def maybe_fix_user_object(data), do: maybe_fix_user_url(data)
+
+  defp ensure_context_presence(%{"context" => context} = data) when is_binary(context),
+    do: {:ok, data}
+
+  defp ensure_context_presence(%{"object" => object} = data) when is_binary(object) do
+    with %{data: %{"context" => context}} when is_binary(context) <- Object.normalize(object) do
+      {:ok, Map.put(data, "context", context)}
+    else
+      _ ->
+        {:error, :no_context}
+    end
+  end
+
+  defp ensure_context_presence(_) do
+    {:error, :no_context}
+  end
+
+  defp ensure_recipients_presence(%{"to" => [_ | _], "cc" => [_ | _]} = data),
+    do: {:ok, data}
+
+  defp ensure_recipients_presence(%{"object" => object} = data) do
+    case Object.normalize(object) do
+      %{data: %{"actor" => actor}} ->
+        data =
+          data
+          |> Map.put("to", [actor])
+          |> Map.put("cc", data["cc"] || [])
+
+        {:ok, data}
+
+      nil ->
+        {:error, :no_object}
+
+      _ ->
+        {:error, :no_actor}
+    end
+  end
+
+  defp ensure_recipients_presence(_) do
+    {:error, :no_object}
+  end
 end
diff --git a/lib/pleroma/web/admin_api/admin_api_controller.ex b/lib/pleroma/web/admin_api/admin_api_controller.ex
index 747d97f80..831c3bd02 100644
--- a/lib/pleroma/web/admin_api/admin_api_controller.ex
+++ b/lib/pleroma/web/admin_api/admin_api_controller.ex
@@ -576,9 +576,8 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
 
   @doc "Sends registration invite via email"
   def email_invite(%{assigns: %{user: user}} = conn, %{"email" => email} = params) do
-    with true <-
-           Config.get([:instance, :invites_enabled]) &&
-             !Config.get([:instance, :registrations_open]),
+    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(
@@ -589,6 +588,18 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
            ),
          {:ok, _} <- Pleroma.Emails.Mailer.deliver(email) do
       json_response(conn, :no_content, "")
+    else
+      {:registrations_open, _} ->
+        errors(
+          conn,
+          {:error, "To send invites you need to set the `registrations_open` option to false."}
+        )
+
+      {:invites_enabled, _} ->
+        errors(
+          conn,
+          {:error, "To send invites you need to set the `invites_enabled` option to true."}
+        )
     end
   end
 
diff --git a/lib/pleroma/web/api_spec.ex b/lib/pleroma/web/api_spec.ex
new file mode 100644
index 000000000..41e48a085
--- /dev/null
+++ b/lib/pleroma/web/api_spec.ex
@@ -0,0 +1,44 @@
+# 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 do
+  alias OpenApiSpex.OpenApi
+  alias Pleroma.Web.Endpoint
+  alias Pleroma.Web.Router
+
+  @behaviour OpenApi
+
+  @impl OpenApi
+  def spec do
+    %OpenApi{
+      servers: [
+        # Populate the Server info from a phoenix endpoint
+        OpenApiSpex.Server.from_endpoint(Endpoint)
+      ],
+      info: %OpenApiSpex.Info{
+        title: "Pleroma",
+        description: Application.spec(:pleroma, :description) |> to_string(),
+        version: Application.spec(:pleroma, :vsn) |> to_string()
+      },
+      # populate the paths from a phoenix router
+      paths: OpenApiSpex.Paths.from_router(Router),
+      components: %OpenApiSpex.Components{
+        securitySchemes: %{
+          "oAuth" => %OpenApiSpex.SecurityScheme{
+            type: "oauth2",
+            flows: %OpenApiSpex.OAuthFlows{
+              password: %OpenApiSpex.OAuthFlow{
+                authorizationUrl: "/oauth/authorize",
+                tokenUrl: "/oauth/token",
+                scopes: %{"read" => "read"}
+              }
+            }
+          }
+        }
+      }
+    }
+    # discover request/response schemas from path specs
+    |> OpenApiSpex.resolve_schema_modules()
+  end
+end
diff --git a/lib/pleroma/web/api_spec/helpers.ex b/lib/pleroma/web/api_spec/helpers.ex
new file mode 100644
index 000000000..35cf4c0d8
--- /dev/null
+++ b/lib/pleroma/web/api_spec/helpers.ex
@@ -0,0 +1,27 @@
+# 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.Helpers do
+  def request_body(description, schema_ref, opts \\ []) do
+    media_types = ["application/json", "multipart/form-data"]
+
+    content =
+      media_types
+      |> Enum.map(fn type ->
+        {type,
+         %OpenApiSpex.MediaType{
+           schema: schema_ref,
+           example: opts[:example],
+           examples: opts[:examples]
+         }}
+      end)
+      |> Enum.into(%{})
+
+    %OpenApiSpex.RequestBody{
+      description: description,
+      content: content,
+      required: opts[:required] || false
+    }
+  end
+end
diff --git a/lib/pleroma/web/api_spec/operations/app_operation.ex b/lib/pleroma/web/api_spec/operations/app_operation.ex
new file mode 100644
index 000000000..26d8dbd42
--- /dev/null
+++ b/lib/pleroma/web/api_spec/operations/app_operation.ex
@@ -0,0 +1,96 @@
+# 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.AppOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Helpers
+  alias Pleroma.Web.ApiSpec.Schemas.AppCreateRequest
+  alias Pleroma.Web.ApiSpec.Schemas.AppCreateResponse
+
+  @spec open_api_operation(atom) :: Operation.t()
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  @spec create_operation() :: Operation.t()
+  def create_operation do
+    %Operation{
+      tags: ["apps"],
+      summary: "Create an application",
+      description: "Create a new application to obtain OAuth2 credentials",
+      operationId: "AppController.create",
+      requestBody: Helpers.request_body("Parameters", AppCreateRequest, required: true),
+      responses: %{
+        200 => Operation.response("App", "application/json", AppCreateResponse),
+        422 =>
+          Operation.response(
+            "Unprocessable Entity",
+            "application/json",
+            %Schema{
+              type: :object,
+              description:
+                "If a required parameter is missing or improperly formatted, the request will fail.",
+              properties: %{
+                error: %Schema{type: :string}
+              },
+              example: %{
+                "error" => "Validation failed: Redirect URI must be an absolute URI."
+              }
+            }
+          )
+      }
+    }
+  end
+
+  def verify_credentials_operation do
+    %Operation{
+      tags: ["apps"],
+      summary: "Verify your app works",
+      description: "Confirm that the app's OAuth2 credentials work.",
+      operationId: "AppController.verify_credentials",
+      security: [
+        %{
+          "oAuth" => ["read"]
+        }
+      ],
+      responses: %{
+        200 =>
+          Operation.response("App", "application/json", %Schema{
+            type: :object,
+            description:
+              "If the Authorization header was provided with a valid token, you should see your app returned as an Application entity.",
+            properties: %{
+              name: %Schema{type: :string},
+              vapid_key: %Schema{type: :string},
+              website: %Schema{type: :string, nullable: true}
+            },
+            example: %{
+              "name" => "My App",
+              "vapid_key" =>
+                "BCk-QqERU0q-CfYZjcuB6lnyyOYfJ2AifKqfeGIm7Z-HiTU5T9eTG5GxVA0_OH5mMlI4UkkDTpaZwozy0TzdZ2M=",
+              "website" => "https://myapp.com/"
+            }
+          }),
+        422 =>
+          Operation.response(
+            "Unauthorized",
+            "application/json",
+            %Schema{
+              type: :object,
+              description:
+                "If the Authorization header contains an invalid token, is malformed, or is not present, an error will be returned indicating an authorization failure.",
+              properties: %{
+                error: %Schema{type: :string}
+              },
+              example: %{
+                "error" => "The access token is invalid."
+              }
+            }
+          )
+      }
+    }
+  end
+end
diff --git a/lib/pleroma/web/api_spec/schemas/app_create_request.ex b/lib/pleroma/web/api_spec/schemas/app_create_request.ex
new file mode 100644
index 000000000..8a83abef3
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/app_create_request.ex
@@ -0,0 +1,33 @@
+# 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.Schemas.AppCreateRequest do
+  alias OpenApiSpex.Schema
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "AppCreateRequest",
+    description: "POST body for creating an app",
+    type: :object,
+    properties: %{
+      client_name: %Schema{type: :string, description: "A name for your application."},
+      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."
+      },
+      scopes: %Schema{
+        type: :string,
+        description: "Space separated list of scopes. If none is provided, defaults to `read`."
+      },
+      website: %Schema{type: :string, description: "A URL to the homepage of your app"}
+    },
+    required: [:client_name, :redirect_uris],
+    example: %{
+      "client_name" => "My App",
+      "redirect_uris" => "https://myapp.com/auth/callback",
+      "website" => "https://myapp.com/"
+    }
+  })
+end
diff --git a/lib/pleroma/web/api_spec/schemas/app_create_response.ex b/lib/pleroma/web/api_spec/schemas/app_create_response.ex
new file mode 100644
index 000000000..f290fb031
--- /dev/null
+++ b/lib/pleroma/web/api_spec/schemas/app_create_response.ex
@@ -0,0 +1,33 @@
+# 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.Schemas.AppCreateResponse do
+  alias OpenApiSpex.Schema
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "AppCreateResponse",
+    description: "Response schema for an app",
+    type: :object,
+    properties: %{
+      id: %Schema{type: :string},
+      name: %Schema{type: :string},
+      client_id: %Schema{type: :string},
+      client_secret: %Schema{type: :string},
+      redirect_uri: %Schema{type: :string},
+      vapid_key: %Schema{type: :string},
+      website: %Schema{type: :string, nullable: true}
+    },
+    example: %{
+      "id" => "123",
+      "name" => "My App",
+      "client_id" => "TWhM-tNSuncnqN7DBJmoyeLnk6K3iJJ71KKXxgL1hPM",
+      "client_secret" => "ZEaFUFmF0umgBX1qKJDjaU99Q31lDkOU8NutzTOoliw",
+      "vapid_key" =>
+        "BCk-QqERU0q-CfYZjcuB6lnyyOYfJ2AifKqfeGIm7Z-HiTU5T9eTG5GxVA0_OH5mMlI4UkkDTpaZwozy0TzdZ2M=",
+      "website" => "https://myapp.com/"
+    }
+  })
+end
diff --git a/lib/pleroma/web/common_api/common_api.ex b/lib/pleroma/web/common_api/common_api.ex
index 2646b9f7b..c56756a3d 100644
--- a/lib/pleroma/web/common_api/common_api.ex
+++ b/lib/pleroma/web/common_api/common_api.ex
@@ -12,6 +12,8 @@ defmodule Pleroma.Web.CommonAPI do
   alias Pleroma.User
   alias Pleroma.UserRelationship
   alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.Builder
+  alias Pleroma.Web.ActivityPub.Pipeline
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.ActivityPub.Visibility
 
@@ -19,6 +21,7 @@ defmodule Pleroma.Web.CommonAPI do
   import Pleroma.Web.CommonAPI.Utils
 
   require Pleroma.Constants
+  require Logger
 
   def follow(follower, followed) do
     timeout = Pleroma.Config.get([:activitypub, :follow_handshake_timeout])
@@ -42,7 +45,7 @@ defmodule Pleroma.Web.CommonAPI do
     with {:ok, follower} <- User.follow(follower, followed),
          %Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
-         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "accept"),
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_accept),
          {:ok, _activity} <-
            ActivityPub.accept(%{
              to: [follower.ap_id],
@@ -57,7 +60,7 @@ defmodule Pleroma.Web.CommonAPI do
   def reject_follow_request(follower, followed) do
     with %Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
          {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject"),
-         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, "reject"),
+         {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_reject),
          {:ok, _activity} <-
            ActivityPub.reject(%{
              to: [follower.ap_id],
@@ -109,18 +112,51 @@ defmodule Pleroma.Web.CommonAPI do
     end
   end
 
-  def favorite(id_or_ap_id, user) do
-    with {_, %Activity{} = activity} <- {:find_activity, get_by_id_or_ap_id(id_or_ap_id)},
-         object <- Object.normalize(activity),
-         like_activity <- Utils.get_existing_like(user.ap_id, object) do
-      if like_activity do
-        {:ok, like_activity, object}
-      else
-        ActivityPub.like(user, object)
-      end
+  @spec favorite(User.t(), binary()) :: {:ok, Activity.t() | :already_liked} | {:error, any()}
+  def favorite(%User{} = user, id) do
+    case favorite_helper(user, id) do
+      {:ok, _} = res ->
+        res
+
+      {:error, :not_found} = res ->
+        res
+
+      {:error, e} ->
+        Logger.error("Could not favorite #{id}. Error: #{inspect(e, pretty: true)}")
+        {:error, dgettext("errors", "Could not favorite")}
+    end
+  end
+
+  def favorite_helper(user, id) do
+    with {_, %Activity{object: object}} <- {:find_object, Activity.get_by_id_with_object(id)},
+         {_, {:ok, like_object, meta}} <- {:build_object, Builder.like(user, object)},
+         {_, {:ok, %Activity{} = activity, _meta}} <-
+           {:common_pipeline,
+            Pipeline.common_pipeline(like_object, Keyword.put(meta, :local, true))} do
+      {:ok, activity}
     else
-      {:find_activity, _} -> {:error, :not_found}
-      _ -> {:error, dgettext("errors", "Could not favorite")}
+      {:find_object, _} ->
+        {:error, :not_found}
+
+      {:common_pipeline,
+       {
+         :error,
+         {
+           :validate_object,
+           {
+             :error,
+             changeset
+           }
+         }
+       }} = e ->
+        if {:object, {"already liked by this actor", []}} in changeset.errors do
+          {:ok, :already_liked}
+        else
+          {:error, e}
+        end
+
+      e ->
+        {:error, e}
     end
   end
 
diff --git a/lib/pleroma/web/mastodon_api/controllers/app_controller.ex b/lib/pleroma/web/mastodon_api/controllers/app_controller.ex
index 5e2871f18..005c60444 100644
--- a/lib/pleroma/web/mastodon_api/controllers/app_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/app_controller.ex
@@ -14,17 +14,20 @@ defmodule Pleroma.Web.MastodonAPI.AppController do
   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
 
   plug(OAuthScopesPlug, %{scopes: ["read"]} when action == :verify_credentials)
+  plug(OpenApiSpex.Plug.CastAndValidate)
 
   @local_mastodon_name "Mastodon-Local"
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.AppOperation
+
   @doc "POST /api/v1/apps"
-  def create(conn, params) do
+  def create(%{body_params: params} = conn, _params) do
     scopes = Scopes.fetch_scopes(params, ["read"])
 
     app_attrs =
       params
-      |> Map.drop(["scope", "scopes"])
-      |> Map.put("scopes", scopes)
+      |> Map.take([:client_name, :redirect_uris, :website])
+      |> Map.put(:scopes, scopes)
 
     with cs <- App.register_changeset(%App{}, app_attrs),
          false <- cs.changes[:client_name] == @local_mastodon_name,
diff --git a/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex b/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
index c7e808253..7fb536b09 100644
--- a/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/notification_controller.ex
@@ -70,7 +70,8 @@ defmodule Pleroma.Web.MastodonAPI.NotificationController do
     json(conn, %{})
   end
 
-  # POST /api/v1/notifications/dismiss
+  # POST /api/v1/notifications/:id/dismiss
+  # POST /api/v1/notifications/dismiss (deprecated)
   def dismiss(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
     with {:ok, _notif} <- Notification.dismiss(user, id) do
       json(conn, %{})
diff --git a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
index eb3d90aeb..397dd10e3 100644
--- a/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/status_controller.ex
@@ -213,9 +213,9 @@ defmodule Pleroma.Web.MastodonAPI.StatusController do
   end
 
   @doc "POST /api/v1/statuses/:id/favourite"
-  def favourite(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
-    with {:ok, _fav, %{data: %{"id" => id}}} <- CommonAPI.favorite(ap_id_or_id, user),
-         %Activity{} = activity <- Activity.get_create_by_object_ap_id(id) do
+  def favourite(%{assigns: %{user: user}} = conn, %{"id" => activity_id}) do
+    with {:ok, _fav} <- CommonAPI.favorite(user, activity_id),
+         %Activity{} = activity <- Activity.get_by_id(activity_id) do
       try_render(conn, "show.json", activity: activity, for: user, as: :activity)
     end
   end
diff --git a/lib/pleroma/web/mastodon_api/views/account_view.ex b/lib/pleroma/web/mastodon_api/views/account_view.ex
index 32f1ad5b1..8fb96a22a 100644
--- a/lib/pleroma/web/mastodon_api/views/account_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/account_view.ex
@@ -74,7 +74,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
     followed_by =
       if following_relationships do
         case FollowingRelationship.find(following_relationships, target, reading_user) do
-          %{state: "accept"} -> true
+          %{state: :follow_accept} -> true
           _ -> false
         end
       else
@@ -84,7 +84,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
     # NOTE: adjust UserRelationship.view_relationships_option/2 on new relation-related flags
     %{
       id: to_string(target.id),
-      following: follow_state == "accept",
+      following: follow_state == :follow_accept,
       followed_by: followed_by,
       blocking:
         UserRelationship.exists?(
@@ -126,7 +126,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountView do
           reading_user,
           &User.subscribed_to?(&2, &1)
         ),
-      requested: follow_state == "pending",
+      requested: follow_state == :follow_pending,
       domain_blocking: User.blocks_domain?(reading_user, target),
       showing_reblogs:
         not UserRelationship.exists?(
diff --git a/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex b/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
index 30838b1eb..f9a5ddcc0 100644
--- a/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
+++ b/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
@@ -75,7 +75,8 @@ defmodule Pleroma.Web.Nodeinfo.NodeinfoController do
         end,
         if Config.get([:instance, :safe_dm_mentions]) do
           "safe_dm_mentions"
-        end
+        end,
+        "pleroma_emoji_reactions"
       ]
       |> Enum.filter(& &1)
 
diff --git a/lib/pleroma/web/oauth/scopes.ex b/lib/pleroma/web/oauth/scopes.ex
index 8ecf901f3..1023f16d4 100644
--- a/lib/pleroma/web/oauth/scopes.ex
+++ b/lib/pleroma/web/oauth/scopes.ex
@@ -15,7 +15,12 @@ defmodule Pleroma.Web.OAuth.Scopes do
   Note: `scopes` is used by Mastodon — supporting it but sticking to
   OAuth's standard `scope` wherever we control it
   """
-  @spec fetch_scopes(map(), list()) :: list()
+  @spec fetch_scopes(map() | struct(), list()) :: list()
+
+  def fetch_scopes(%Pleroma.Web.ApiSpec.Schemas.AppCreateRequest{scopes: scopes}, default) do
+    parse_scopes(scopes, default)
+  end
+
   def fetch_scopes(params, default) do
     parse_scopes(params["scope"] || params["scopes"], default)
   end
diff --git a/lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex b/lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex
index 83983b576..d4c5c5925 100644
--- a/lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/pleroma_api_controller.ex
@@ -110,12 +110,11 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
   end
 
   def conversation_statuses(
-        %{assigns: %{user: user}} = conn,
+        %{assigns: %{user: %{id: user_id} = user}} = conn,
         %{"id" => participation_id} = params
       ) do
-    with %Participation{} = participation <-
-           Participation.get(participation_id, preload: [:conversation]),
-         true <- user.id == participation.user_id do
+    with %Participation{user_id: ^user_id} = participation <-
+           Participation.get(participation_id, preload: [:conversation]) do
       params =
         params
         |> Map.put("blocking_user", user)
@@ -124,7 +123,8 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIController do
 
       activities =
         participation.conversation.ap_id
-        |> ActivityPub.fetch_activities_for_context(params)
+        |> ActivityPub.fetch_activities_for_context_query(params)
+        |> Pleroma.Pagination.fetch_paginated(Map.put(params, "total", false))
         |> Enum.reverse()
 
       conn
diff --git a/lib/pleroma/web/router.ex b/lib/pleroma/web/router.ex
index 5a0902739..5f5ec1c81 100644
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@@ -29,6 +29,7 @@ defmodule Pleroma.Web.Router do
     plug(Pleroma.Plugs.SetUserSessionIdPlug)
     plug(Pleroma.Plugs.EnsureUserKeyPlug)
     plug(Pleroma.Plugs.IdempotencyPlug)
+    plug(OpenApiSpex.Plug.PutApiSpec, module: Pleroma.Web.ApiSpec)
   end
 
   pipeline :authenticated_api do
@@ -44,6 +45,7 @@ defmodule Pleroma.Web.Router do
     plug(Pleroma.Plugs.SetUserSessionIdPlug)
     plug(Pleroma.Plugs.EnsureAuthenticatedPlug)
     plug(Pleroma.Plugs.IdempotencyPlug)
+    plug(OpenApiSpex.Plug.PutApiSpec, module: Pleroma.Web.ApiSpec)
   end
 
   pipeline :admin_api do
@@ -61,6 +63,7 @@ defmodule Pleroma.Web.Router do
     plug(Pleroma.Plugs.EnsureAuthenticatedPlug)
     plug(Pleroma.Plugs.UserIsAdminPlug)
     plug(Pleroma.Plugs.IdempotencyPlug)
+    plug(OpenApiSpex.Plug.PutApiSpec, module: Pleroma.Web.ApiSpec)
   end
 
   pipeline :mastodon_html do
@@ -94,10 +97,12 @@ defmodule Pleroma.Web.Router do
 
   pipeline :config do
     plug(:accepts, ["json", "xml"])
+    plug(OpenApiSpex.Plug.PutApiSpec, module: Pleroma.Web.ApiSpec)
   end
 
   pipeline :pleroma_api do
     plug(:accepts, ["html", "json"])
+    plug(OpenApiSpex.Plug.PutApiSpec, module: Pleroma.Web.ApiSpec)
   end
 
   pipeline :mailbox_preview do
@@ -347,9 +352,11 @@ defmodule Pleroma.Web.Router do
 
     get("/notifications", NotificationController, :index)
     get("/notifications/:id", NotificationController, :show)
+    post("/notifications/:id/dismiss", NotificationController, :dismiss)
     post("/notifications/clear", NotificationController, :clear)
-    post("/notifications/dismiss", NotificationController, :dismiss)
     delete("/notifications/destroy_multiple", NotificationController, :destroy_multiple)
+    # Deprecated: was removed in Mastodon v3, use `/notifications/:id/dismiss` instead
+    post("/notifications/dismiss", NotificationController, :dismiss)
 
     get("/scheduled_statuses", ScheduledActivityController, :index)
     get("/scheduled_statuses/:id", ScheduledActivityController, :show)
@@ -500,6 +507,12 @@ defmodule Pleroma.Web.Router do
     )
   end
 
+  scope "/api" do
+    pipe_through(:api)
+
+    get("/openapi", OpenApiSpex.Plug.RenderSpec, [])
+  end
+
   scope "/api", Pleroma.Web, as: :authenticated_twitter_api do
     pipe_through(:authenticated_api)
 
diff --git a/mix.exs b/mix.exs
index 87c025d89..c781995e0 100644
--- a/mix.exs
+++ b/mix.exs
@@ -37,12 +37,21 @@ defmodule Pleroma.Mixfile do
         pleroma: [
           include_executables_for: [:unix],
           applications: [ex_syslogger: :load, syslog: :load],
-          steps: [:assemble, &copy_files/1, &copy_nginx_config/1]
+          steps: [:assemble, &put_otp_version/1, &copy_files/1, &copy_nginx_config/1]
         ]
       ]
     ]
   end
 
+  def put_otp_version(%{path: target_path} = release) do
+    File.write!(
+      Path.join([target_path, "OTP_VERSION"]),
+      Pleroma.OTPVersion.version()
+    )
+
+    release
+  end
+
   def copy_files(%{path: target_path} = release) do
     File.cp_r!("./rel/files", target_path)
     release
@@ -108,7 +117,7 @@ defmodule Pleroma.Mixfile do
       {:ecto_enum, "~> 1.4"},
       {:ecto_sql, "~> 3.3.2"},
       {:postgrex, ">= 0.13.5"},
-      {:oban, "~> 0.12.1"},
+      {:oban, "~> 1.2"},
       {:gettext, "~> 0.15"},
       {:comeonin, "~> 4.1.1"},
       {:pbkdf2_elixir, "~> 0.12.3"},
@@ -179,7 +188,8 @@ defmodule Pleroma.Mixfile do
        git: "https://git.pleroma.social/pleroma/elixir-libraries/elixir-captcha.git",
        ref: "e0f16822d578866e186a0974d65ad58cddc1e2ab"},
       {:mox, "~> 0.5", only: :test},
-      {:restarter, path: "./restarter"}
+      {:restarter, path: "./restarter"},
+      {:open_api_spex, "~> 3.6"}
     ] ++ oauth_deps()
   end
 
diff --git a/mix.lock b/mix.lock
index 6cca578d6..ba4e3ac44 100644
--- a/mix.lock
+++ b/mix.lock
@@ -26,7 +26,7 @@
   "decimal": {:hex, :decimal, "1.8.1", "a4ef3f5f3428bdbc0d35374029ffcf4ede8533536fa79896dd450168d9acdf3c", [:mix], [], "hexpm", "3cb154b00225ac687f6cbd4acc4b7960027c757a5152b369923ead9ddbca7aec"},
   "deep_merge": {:hex, :deep_merge, "1.0.0", "b4aa1a0d1acac393bdf38b2291af38cb1d4a52806cf7a4906f718e1feb5ee961", [:mix], [], "hexpm", "ce708e5f094b9cd4e8f2be4f00d2f4250c4095be93f8cd6d018c753894885430"},
   "earmark": {:hex, :earmark, "1.4.3", "364ca2e9710f6bff494117dbbd53880d84bebb692dafc3a78eb50aa3183f2bfd", [:mix], [], "hexpm", "8cf8a291ebf1c7b9539e3cddb19e9cef066c2441b1640f13c34c1d3cfc825fec"},
-  "ecto": {:hex, :ecto, "3.3.3", "0830bf3aebcbf3d8c1a1811cd581773b6866886c012f52c0f027031fa96a0b53", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "12e368e3c2a2938d7776defaabdae40e82900fc4d8d66120ec1e01dfd8b93c3a"},
+  "ecto": {:hex, :ecto, "3.4.0", "a7a83ab8359bf816ce729e5e65981ce25b9fc5adfc89c2ea3980f4fed0bfd7c1", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "5eed18252f5b5bbadec56a24112b531343507dbe046273133176b12190ce19cc"},
   "ecto_enum": {:hex, :ecto_enum, "1.4.0", "d14b00e04b974afc69c251632d1e49594d899067ee2b376277efd8233027aec8", [:mix], [{:ecto, ">= 3.0.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:ecto_sql, "> 3.0.0", [hex: :ecto_sql, repo: "hexpm", optional: false]}, {:mariaex, ">= 0.0.0", [hex: :mariaex, repo: "hexpm", optional: true]}, {:postgrex, ">= 0.0.0", [hex: :postgrex, repo: "hexpm", optional: true]}], "hexpm", "8fb55c087181c2b15eee406519dc22578fa60dd82c088be376d0010172764ee4"},
   "ecto_sql": {:hex, :ecto_sql, "3.3.4", "aa18af12eb875fbcda2f75e608b3bd534ebf020fc4f6448e4672fcdcbb081244", [:mix], [{:db_connection, "~> 2.2", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.4 or ~> 3.3.3", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.3.0", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.15.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "5eccbdbf92e3c6f213007a82d5dbba4cd9bb659d1a21331f89f408e4c0efd7a8"},
   "esshd": {:hex, :esshd, "0.1.1", "d4dd4c46698093a40a56afecce8a46e246eb35463c457c246dacba2e056f31b5", [:mix], [], "hexpm", "d73e341e3009d390aa36387dc8862860bf9f874c94d9fd92ade2926376f49981"},
@@ -55,7 +55,7 @@
   "httpoison": {:hex, :httpoison, "1.6.2", "ace7c8d3a361cebccbed19c283c349b3d26991eff73a1eaaa8abae2e3c8089b6", [:mix], [{:hackney, "~> 1.15 and >= 1.15.2", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "aa2c74bd271af34239a3948779612f87df2422c2fdcfdbcec28d9c105f0773fe"},
   "idna": {:hex, :idna, "6.0.0", "689c46cbcdf3524c44d5f3dde8001f364cd7608a99556d8fbd8239a5798d4c10", [:rebar3], [{:unicode_util_compat, "0.4.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "4bdd305eb64e18b0273864920695cb18d7a2021f31a11b9c5fbcd9a253f936e2"},
   "inet_cidr": {:hex, :inet_cidr, "1.0.4", "a05744ab7c221ca8e395c926c3919a821eb512e8f36547c062f62c4ca0cf3d6e", [:mix], [], "hexpm", "64a2d30189704ae41ca7dbdd587f5291db5d1dda1414e0774c29ffc81088c1bc"},
-  "jason": {:hex, :jason, "1.1.2", "b03dedea67a99223a2eaf9f1264ce37154564de899fd3d8b9a21b1a6fd64afe7", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "fdf843bca858203ae1de16da2ee206f53416bbda5dc8c9e78f43243de4bc3afe"},
+  "jason": {:hex, :jason, "1.2.0", "10043418c42d2493d0ee212d3fddd25d7ffe484380afad769a0a38795938e448", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "116747dbe057794c3a3e4e143b7c8390b29f634e16c78a7f59ba75bfa6852e7f"},
   "joken": {:hex, :joken, "2.2.0", "2daa1b12be05184aff7b5ace1d43ca1f81345962285fff3f88db74927c954d3a", [:mix], [{:jose, "~> 1.9", [hex: :jose, repo: "hexpm", optional: false]}], "hexpm", "b4f92e30388206f869dd25d1af628a1d99d7586e5cf0672f64d4df84c4d2f5e9"},
   "jose": {:hex, :jose, "1.10.1", "16d8e460dae7203c6d1efa3f277e25b5af8b659febfc2f2eb4bacf87f128b80a", [:mix, :rebar3], [], "hexpm", "3c7ddc8a9394b92891db7c2771da94bf819834a1a4c92e30857b7d582e2f8257"},
   "jumper": {:hex, :jumper, "1.0.1", "3c00542ef1a83532b72269fab9f0f0c82bf23a35e27d278bfd9ed0865cecabff", [:mix], [], "hexpm", "318c59078ac220e966d27af3646026db9b5a5e6703cb2aa3e26bcfaba65b7433"},
@@ -73,7 +73,8 @@
   "myhtmlex": {:git, "https://git.pleroma.social/pleroma/myhtmlex.git", "ad0097e2f61d4953bfef20fb6abddf23b87111e6", [ref: "ad0097e2f61d4953bfef20fb6abddf23b87111e6", submodules: true]},
   "nimble_parsec": {:hex, :nimble_parsec, "0.5.3", "def21c10a9ed70ce22754fdeea0810dafd53c2db3219a0cd54cf5526377af1c6", [:mix], [], "hexpm", "589b5af56f4afca65217a1f3eb3fee7e79b09c40c742fddc1c312b3ac0b3399f"},
   "nodex": {:git, "https://git.pleroma.social/pleroma/nodex", "cb6730f943cfc6aad674c92161be23a8411f15d1", [ref: "cb6730f943cfc6aad674c92161be23a8411f15d1"]},
-  "oban": {:hex, :oban, "0.12.1", "695e9490c6e0edfca616d80639528e448bd29b3bff7b7dd10a56c79b00a5d7fb", [:mix], [{:ecto_sql, "~> 3.1", [hex: :ecto_sql, repo: "hexpm", optional: false]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:postgrex, "~> 0.14", [hex: :postgrex, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "c1d58d69b8b5a86e7167abbb8cc92764a66f25f12f6172052595067fc6a30a17"},
+  "oban": {:hex, :oban, "1.2.0", "7cca94d341be43d220571e28f69131c4afc21095b25257397f50973d3fc59b07", [:mix], [{:ecto_sql, "~> 3.1", [hex: :ecto_sql, repo: "hexpm", optional: false]}, {:jason, "~> 1.1", [hex: :jason, repo: "hexpm", optional: false]}, {:postgrex, "~> 0.14", [hex: :postgrex, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ba5f8b3f7d76967b3e23cf8014f6a13e4ccb33431e4808f036709a7f822362ee"},
+  "open_api_spex": {:hex, :open_api_spex, "3.6.0", "64205aba9f2607f71b08fd43e3351b9c5e9898ec5ef49fc0ae35890da502ade9", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:poison, "~> 3.1", [hex: :poison, repo: "hexpm", optional: true]}], "hexpm", "126ba3473966277132079cb1d5bf1e3df9e36fe2acd00166e75fd125cecb59c5"},
   "parse_trans": {:hex, :parse_trans, "3.3.0", "09765507a3c7590a784615cfd421d101aec25098d50b89d7aa1d66646bc571c1", [:rebar3], [], "hexpm", "17ef63abde837ad30680ea7f857dd9e7ced9476cdd7b0394432af4bfc241b960"},
   "pbkdf2_elixir": {:hex, :pbkdf2_elixir, "0.12.4", "8dd29ed783f2e12195d7e0a4640effc0a7c37e6537da491f1db01839eee6d053", [:mix], [], "hexpm", "595d09db74cb093b1903381c9de423276a931a2480a46a1a5dc7f932a2a6375b"},
   "phoenix": {:hex, :phoenix, "1.4.13", "67271ad69b51f3719354604f4a3f968f83aa61c19199343656c9caee057ff3b8", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix_pubsub, "~> 1.1", [hex: :phoenix_pubsub, repo: "hexpm", optional: false]}, {:plug, "~> 1.8.1 or ~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 1.0 or ~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ab765a0feddb81fc62e2116c827b5f068df85159c162bee760745276ad7ddc1b"},
diff --git a/priv/repo/migrations/20200328124805_change_following_relationships_state_to_integer.exs b/priv/repo/migrations/20200328124805_change_following_relationships_state_to_integer.exs
new file mode 100644
index 000000000..2b0820f3f
--- /dev/null
+++ b/priv/repo/migrations/20200328124805_change_following_relationships_state_to_integer.exs
@@ -0,0 +1,29 @@
+defmodule Pleroma.Repo.Migrations.ChangeFollowingRelationshipsStateToInteger do
+  use Ecto.Migration
+
+  @alter_following_relationship_state "ALTER TABLE following_relationships ALTER COLUMN state"
+
+  def up do
+    execute("""
+    #{@alter_following_relationship_state} TYPE integer USING
+    CASE
+      WHEN state = 'pending' THEN 1
+      WHEN state = 'accept' THEN 2
+      WHEN state = 'reject' THEN 3
+      ELSE 0
+    END;
+    """)
+  end
+
+  def down do
+    execute("""
+    #{@alter_following_relationship_state} TYPE varchar(255) USING
+    CASE
+      WHEN state = 1 THEN 'pending'
+      WHEN state = 2 THEN 'accept'
+      WHEN state = 3 THEN 'reject'
+      ELSE ''
+    END;
+    """)
+  end
+end
diff --git a/priv/repo/migrations/20200328130139_add_following_relationships_following_id_index.exs b/priv/repo/migrations/20200328130139_add_following_relationships_following_id_index.exs
new file mode 100644
index 000000000..884832f84
--- /dev/null
+++ b/priv/repo/migrations/20200328130139_add_following_relationships_following_id_index.exs
@@ -0,0 +1,11 @@
+defmodule Pleroma.Repo.Migrations.AddFollowingRelationshipsFollowingIdIndex do
+  use Ecto.Migration
+
+  # [:follower_index] index is useless because of [:follower_id, :following_id] index
+  # [:following_id] index makes sense because of user's followers-targeted queries
+  def change do
+    drop_if_exists(index(:following_relationships, [:follower_id]))
+
+    create_if_not_exists(index(:following_relationships, [:following_id]))
+  end
+end
diff --git a/priv/repo/migrations/20200402063221_update_oban_jobs_table.exs b/priv/repo/migrations/20200402063221_update_oban_jobs_table.exs
new file mode 100644
index 000000000..e7ff04008
--- /dev/null
+++ b/priv/repo/migrations/20200402063221_update_oban_jobs_table.exs
@@ -0,0 +1,11 @@
+defmodule Pleroma.Repo.Migrations.UpdateObanJobsTable do
+  use Ecto.Migration
+
+  def up do
+    Oban.Migrations.up(version: 8)
+  end
+
+  def down do
+    Oban.Migrations.down(version: 7)
+  end
+end
diff --git a/test/fixtures/emoji/packs/blank.png.zip b/test/fixtures/emoji/packs/blank.png.zip
new file mode 100644
index 000000000..651daf127
--- /dev/null
+++ b/test/fixtures/emoji/packs/blank.png.zip
diff --git a/test/fixtures/emoji/packs/default-manifest.json b/test/fixtures/emoji/packs/default-manifest.json
new file mode 100644
index 000000000..c8433808d
--- /dev/null
+++ b/test/fixtures/emoji/packs/default-manifest.json
@@ -0,0 +1,10 @@
+{
+  "finmoji": {
+    "license": "CC BY-NC-ND 4.0",
+    "homepage": "https://finland.fi/emoji/",
+    "description": "Finland is the first country in the world to publish its own set of country themed emojis. The Finland emoji collection contains 56 tongue-in-cheek emotions, which were created to explain some hard-to-describe Finnish emotions, Finnish words and customs.",
+    "src": "https://finland.fi/wp-content/uploads/2017/06/finland-emojis.zip",
+    "src_sha256": "384025A1AC6314473863A11AC7AB38A12C01B851A3F82359B89B4D4211D3291D",
+    "files": "finmoji.json"
+  }
+}
\ No newline at end of file
diff --git a/test/fixtures/emoji/packs/finmoji.json b/test/fixtures/emoji/packs/finmoji.json
new file mode 100644
index 000000000..279770998
--- /dev/null
+++ b/test/fixtures/emoji/packs/finmoji.json
@@ -0,0 +1,3 @@
+{
+  "blank": "blank.png"
+}
\ No newline at end of file
diff --git a/test/fixtures/emoji/packs/manifest.json b/test/fixtures/emoji/packs/manifest.json
new file mode 100644
index 000000000..2d51a459b
--- /dev/null
+++ b/test/fixtures/emoji/packs/manifest.json
@@ -0,0 +1,10 @@
+{
+  "blobs.gg": {
+    "src_sha256": "3a12f3a181678d5b3584a62095411b0d60a335118135910d879920f8ade5a57f",
+    "src": "https://git.pleroma.social/pleroma/emoji-index/raw/master/packs/blobs_gg.zip",
+    "license": "Apache 2.0",
+    "homepage": "https://blobs.gg",
+    "files": "blobs_gg.json",
+    "description": "Blob Emoji from blobs.gg repacked as apng"
+  }
+}
\ No newline at end of file
diff --git a/test/following_relationship_test.exs b/test/following_relationship_test.exs
index 865bb3838..17a468abb 100644
--- a/test/following_relationship_test.exs
+++ b/test/following_relationship_test.exs
@@ -15,28 +15,28 @@ defmodule Pleroma.FollowingRelationshipTest do
     test "returns following addresses without internal.fetch" do
       user = insert(:user)
       fetch_actor = InternalFetchActor.get_actor()
-      FollowingRelationship.follow(fetch_actor, user, "accept")
+      FollowingRelationship.follow(fetch_actor, user, :follow_accept)
       assert FollowingRelationship.following(fetch_actor) == [user.follower_address]
     end
 
     test "returns following addresses without relay" do
       user = insert(:user)
       relay_actor = Relay.get_actor()
-      FollowingRelationship.follow(relay_actor, user, "accept")
+      FollowingRelationship.follow(relay_actor, user, :follow_accept)
       assert FollowingRelationship.following(relay_actor) == [user.follower_address]
     end
 
     test "returns following addresses without remote user" do
       user = insert(:user)
       actor = insert(:user, local: false)
-      FollowingRelationship.follow(actor, user, "accept")
+      FollowingRelationship.follow(actor, user, :follow_accept)
       assert FollowingRelationship.following(actor) == [user.follower_address]
     end
 
     test "returns following addresses with local user" do
       user = insert(:user)
       actor = insert(:user, local: true)
-      FollowingRelationship.follow(actor, user, "accept")
+      FollowingRelationship.follow(actor, user, :follow_accept)
 
       assert FollowingRelationship.following(actor) == [
                actor.follower_address,
diff --git a/test/formatter_test.exs b/test/formatter_test.exs
index cf8441cf6..93fd8eab7 100644
--- a/test/formatter_test.exs
+++ b/test/formatter_test.exs
@@ -150,13 +150,13 @@ defmodule Pleroma.FormatterTest do
       assert length(mentions) == 3
 
       expected_text =
-        ~s(<span class="h-card"><a data-user="#{gsimg.id}" class="u-url mention" href="#{
+        ~s(<span class="h-card"><a class="u-url mention" data-user="#{gsimg.id}" href="#{
           gsimg.ap_id
-        }" rel="ugc">@<span>gsimg</span></a></span> According to <span class="h-card"><a data-user="#{
+        }" rel="ugc">@<span>gsimg</span></a></span> According to <span class="h-card"><a class="u-url mention" data-user="#{
           archaeme.id
-        }" class="u-url mention" href="#{"https://archeme/@archa_eme_"}" rel="ugc">@<span>archa_eme_</span></a></span>, that is @daggsy. Also hello <span class="h-card"><a data-user="#{
+        }" href="#{"https://archeme/@archa_eme_"}" rel="ugc">@<span>archa_eme_</span></a></span>, that is @daggsy. Also hello <span class="h-card"><a class="u-url mention" data-user="#{
           archaeme_remote.id
-        }" class="u-url mention" href="#{archaeme_remote.ap_id}" rel="ugc">@<span>archaeme</span></a></span>)
+        }" href="#{archaeme_remote.ap_id}" rel="ugc">@<span>archaeme</span></a></span>)
 
       assert expected_text == text
     end
@@ -171,7 +171,7 @@ defmodule Pleroma.FormatterTest do
       assert length(mentions) == 1
 
       expected_text =
-        ~s(<span class="h-card"><a data-user="#{mike.id}" class="u-url mention" href="#{
+        ~s(<span class="h-card"><a class="u-url mention" data-user="#{mike.id}" href="#{
           mike.ap_id
         }" rel="ugc">@<span>mike</span></a></span> test)
 
@@ -187,7 +187,7 @@ defmodule Pleroma.FormatterTest do
       assert length(mentions) == 1
 
       expected_text =
-        ~s(<span class="h-card"><a data-user="#{o.id}" class="u-url mention" href="#{o.ap_id}" rel="ugc">@<span>o</span></a></span> hi)
+        ~s(<span class="h-card"><a class="u-url mention" data-user="#{o.id}" href="#{o.ap_id}" rel="ugc">@<span>o</span></a></span> hi)
 
       assert expected_text == text
     end
@@ -209,17 +209,13 @@ defmodule Pleroma.FormatterTest do
       assert mentions == [{"@#{user.nickname}", user}, {"@#{other_user.nickname}", other_user}]
 
       assert expected_text ==
-               ~s(<span class="h-card"><a data-user="#{user.id}" class="u-url mention" href="#{
+               ~s(<span class="h-card"><a class="u-url mention" data-user="#{user.id}" href="#{
                  user.ap_id
-               }" rel="ugc">@<span>#{user.nickname}</span></a></span> <span class="h-card"><a data-user="#{
+               }" rel="ugc">@<span>#{user.nickname}</span></a></span> <span class="h-card"><a class="u-url mention" data-user="#{
                  other_user.id
-               }" class="u-url mention" href="#{other_user.ap_id}" rel="ugc">@<span>#{
-                 other_user.nickname
-               }</span></a></span> hey dudes i hate <span class="h-card"><a data-user="#{
+               }" href="#{other_user.ap_id}" rel="ugc">@<span>#{other_user.nickname}</span></a></span> hey dudes i hate <span class="h-card"><a class="u-url mention" data-user="#{
                  third_user.id
-               }" class="u-url mention" href="#{third_user.ap_id}" rel="ugc">@<span>#{
-                 third_user.nickname
-               }</span></a></span>)
+               }" href="#{third_user.ap_id}" rel="ugc">@<span>#{third_user.nickname}</span></a></span>)
     end
 
     test "given the 'safe_mention' option, it will still work without any mention" do
diff --git a/test/notification_test.exs b/test/notification_test.exs
index 7cfa40c51..837a9dacd 100644
--- a/test/notification_test.exs
+++ b/test/notification_test.exs
@@ -537,7 +537,7 @@ defmodule Pleroma.NotificationTest do
           "status" => "hey @#{other_user.nickname}!"
         })
 
-      {:ok, activity_two, _} = CommonAPI.favorite(activity_one.id, third_user)
+      {:ok, activity_two} = CommonAPI.favorite(third_user, activity_one.id)
 
       {enabled_receivers, _disabled_receivers} =
         Notification.get_notified_from_activity(activity_two)
@@ -620,7 +620,7 @@ defmodule Pleroma.NotificationTest do
 
       assert Enum.empty?(Notification.for_user(user))
 
-      {:ok, _, _} = CommonAPI.favorite(activity.id, other_user)
+      {:ok, _} = CommonAPI.favorite(other_user, activity.id)
 
       assert length(Notification.for_user(user)) == 1
 
@@ -637,7 +637,7 @@ defmodule Pleroma.NotificationTest do
 
       assert Enum.empty?(Notification.for_user(user))
 
-      {:ok, _, _} = CommonAPI.favorite(activity.id, other_user)
+      {:ok, _} = CommonAPI.favorite(other_user, activity.id)
 
       assert length(Notification.for_user(user)) == 1
 
@@ -692,7 +692,7 @@ defmodule Pleroma.NotificationTest do
 
       assert Enum.empty?(Notification.for_user(user))
 
-      {:error, _} = CommonAPI.favorite(activity.id, other_user)
+      {:error, :not_found} = CommonAPI.favorite(other_user, activity.id)
 
       assert Enum.empty?(Notification.for_user(user))
     end
diff --git a/test/object_test.exs b/test/object_test.exs
index fe583decd..198d3b1cf 100644
--- a/test/object_test.exs
+++ b/test/object_test.exs
@@ -380,7 +380,8 @@ defmodule Pleroma.ObjectTest do
 
       user = insert(:user)
       activity = Activity.get_create_by_object_ap_id(object.data["id"])
-      {:ok, _activity, object} = CommonAPI.favorite(activity.id, user)
+      {:ok, activity} = CommonAPI.favorite(user, activity.id)
+      object = Object.get_by_ap_id(activity.data["object"])
 
       assert object.data["like_count"] == 1
 
diff --git a/test/stat_test.exs b/test/stat_test.exs
index 33b77e7e7..bccc1c8d0 100644
--- a/test/stat_test.exs
+++ b/test/stat_test.exs
@@ -60,7 +60,7 @@ defmodule Pleroma.StateTest do
       other_user = insert(:user)
       {:ok, activity} = CommonAPI.post(user, %{"visibility" => "public", "status" => "hey"})
       _ = CommonAPI.follow(user, other_user)
-      CommonAPI.favorite(activity.id, other_user)
+      CommonAPI.favorite(other_user, activity.id)
       CommonAPI.repeat(activity.id, other_user)
 
       assert %{direct: 0, private: 0, public: 1, unlisted: 0} =
diff --git a/test/tasks/database_test.exs b/test/tasks/database_test.exs
index ed1c31d9c..7b05993d3 100644
--- a/test/tasks/database_test.exs
+++ b/test/tasks/database_test.exs
@@ -102,7 +102,7 @@ defmodule Mix.Tasks.Pleroma.DatabaseTest do
       {:ok, %{id: id, object: object}} = CommonAPI.post(user, %{"status" => "test"})
       {:ok, %{object: object2}} = CommonAPI.post(user, %{"status" => "test test"})
 
-      CommonAPI.favorite(id, user2)
+      CommonAPI.favorite(user2, id)
 
       likes = %{
         "first" =>
diff --git a/test/tasks/emoji_test.exs b/test/tasks/emoji_test.exs
new file mode 100644
index 000000000..f5de3ef0e
--- /dev/null
+++ b/test/tasks/emoji_test.exs
@@ -0,0 +1,226 @@
+defmodule Mix.Tasks.Pleroma.EmojiTest do
+  use ExUnit.Case, async: true
+
+  import ExUnit.CaptureIO
+  import Tesla.Mock
+
+  alias Mix.Tasks.Pleroma.Emoji
+
+  describe "ls-packs" do
+    test "with default manifest as url" do
+      mock(fn
+        %{
+          method: :get,
+          url: "https://git.pleroma.social/pleroma/emoji-index/raw/master/index.json"
+        } ->
+          %Tesla.Env{
+            status: 200,
+            body: File.read!("test/fixtures/emoji/packs/default-manifest.json")
+          }
+      end)
+
+      capture_io(fn -> Emoji.run(["ls-packs"]) end) =~
+        "https://finland.fi/wp-content/uploads/2017/06/finland-emojis.zip"
+    end
+
+    test "with passed manifest as file" do
+      capture_io(fn ->
+        Emoji.run(["ls-packs", "-m", "test/fixtures/emoji/packs/manifest.json"])
+      end) =~ "https://git.pleroma.social/pleroma/emoji-index/raw/master/packs/blobs_gg.zip"
+    end
+  end
+
+  describe "get-packs" do
+    test "download pack from default manifest" do
+      mock(fn
+        %{
+          method: :get,
+          url: "https://git.pleroma.social/pleroma/emoji-index/raw/master/index.json"
+        } ->
+          %Tesla.Env{
+            status: 200,
+            body: File.read!("test/fixtures/emoji/packs/default-manifest.json")
+          }
+
+        %{
+          method: :get,
+          url: "https://finland.fi/wp-content/uploads/2017/06/finland-emojis.zip"
+        } ->
+          %Tesla.Env{
+            status: 200,
+            body: File.read!("test/fixtures/emoji/packs/blank.png.zip")
+          }
+
+        %{
+          method: :get,
+          url: "https://git.pleroma.social/pleroma/emoji-index/raw/master/finmoji.json"
+        } ->
+          %Tesla.Env{
+            status: 200,
+            body: File.read!("test/fixtures/emoji/packs/finmoji.json")
+          }
+      end)
+
+      assert capture_io(fn -> Emoji.run(["get-packs", "finmoji"]) end) =~ "Writing pack.json for"
+
+      emoji_path =
+        Path.join(
+          Pleroma.Config.get!([:instance, :static_dir]),
+          "emoji"
+        )
+
+      assert File.exists?(Path.join([emoji_path, "finmoji", "pack.json"]))
+      on_exit(fn -> File.rm_rf!("test/instance_static/emoji/finmoji") end)
+    end
+
+    test "pack not found" do
+      mock(fn
+        %{
+          method: :get,
+          url: "https://git.pleroma.social/pleroma/emoji-index/raw/master/index.json"
+        } ->
+          %Tesla.Env{
+            status: 200,
+            body: File.read!("test/fixtures/emoji/packs/default-manifest.json")
+          }
+      end)
+
+      assert capture_io(fn -> Emoji.run(["get-packs", "not_found"]) end) =~
+               "No pack named \"not_found\" found"
+    end
+
+    test "raise on bad sha256" do
+      mock(fn
+        %{
+          method: :get,
+          url: "https://git.pleroma.social/pleroma/emoji-index/raw/master/packs/blobs_gg.zip"
+        } ->
+          %Tesla.Env{
+            status: 200,
+            body: File.read!("test/fixtures/emoji/packs/blank.png.zip")
+          }
+      end)
+
+      assert_raise RuntimeError, ~r/^Bad SHA256 for blobs.gg/, fn ->
+        capture_io(fn ->
+          Emoji.run(["get-packs", "blobs.gg", "-m", "test/fixtures/emoji/packs/manifest.json"])
+        end)
+      end
+    end
+  end
+
+  describe "gen-pack" do
+    setup do
+      url = "https://finland.fi/wp-content/uploads/2017/06/finland-emojis.zip"
+
+      mock(fn %{
+                method: :get,
+                url: ^url
+              } ->
+        %Tesla.Env{status: 200, body: File.read!("test/fixtures/emoji/packs/blank.png.zip")}
+      end)
+
+      {:ok, url: url}
+    end
+
+    test "with default extensions", %{url: url} do
+      name = "pack1"
+      pack_json = "#{name}.json"
+      files_json = "#{name}_file.json"
+      refute File.exists?(pack_json)
+      refute File.exists?(files_json)
+
+      captured =
+        capture_io(fn ->
+          Emoji.run([
+            "gen-pack",
+            url,
+            "--name",
+            name,
+            "--license",
+            "license",
+            "--homepage",
+            "homepage",
+            "--description",
+            "description",
+            "--files",
+            files_json,
+            "--extensions",
+            ".png .gif"
+          ])
+        end)
+
+      assert captured =~ "#{pack_json} has been created with the pack1 pack"
+      assert captured =~ "Using .png .gif extensions"
+
+      assert File.exists?(pack_json)
+      assert File.exists?(files_json)
+
+      on_exit(fn ->
+        File.rm!(pack_json)
+        File.rm!(files_json)
+      end)
+    end
+
+    test "with custom extensions and update existing files", %{url: url} do
+      name = "pack2"
+      pack_json = "#{name}.json"
+      files_json = "#{name}_file.json"
+      refute File.exists?(pack_json)
+      refute File.exists?(files_json)
+
+      captured =
+        capture_io(fn ->
+          Emoji.run([
+            "gen-pack",
+            url,
+            "--name",
+            name,
+            "--license",
+            "license",
+            "--homepage",
+            "homepage",
+            "--description",
+            "description",
+            "--files",
+            files_json,
+            "--extensions",
+            " .png   .gif    .jpeg "
+          ])
+        end)
+
+      assert captured =~ "#{pack_json} has been created with the pack2 pack"
+      assert captured =~ "Using .png .gif .jpeg extensions"
+
+      assert File.exists?(pack_json)
+      assert File.exists?(files_json)
+
+      captured =
+        capture_io(fn ->
+          Emoji.run([
+            "gen-pack",
+            url,
+            "--name",
+            name,
+            "--license",
+            "license",
+            "--homepage",
+            "homepage",
+            "--description",
+            "description",
+            "--files",
+            files_json,
+            "--extensions",
+            " .png   .gif    .jpeg "
+          ])
+        end)
+
+      assert captured =~ "#{pack_json} has been updated with the pack2 pack"
+
+      on_exit(fn ->
+        File.rm!(pack_json)
+        File.rm!(files_json)
+      end)
+    end
+  end
+end
diff --git a/test/tasks/user_test.exs b/test/tasks/user_test.exs
index b45f37263..8df835b56 100644
--- a/test/tasks/user_test.exs
+++ b/test/tasks/user_test.exs
@@ -140,7 +140,7 @@ defmodule Mix.Tasks.Pleroma.UserTest do
     test "user is unsubscribed" do
       followed = insert(:user)
       user = insert(:user)
-      User.follow(user, followed, "accept")
+      User.follow(user, followed, :follow_accept)
 
       Mix.Tasks.Pleroma.User.run(["unsubscribe", user.nickname])
 
diff --git a/test/user_test.exs b/test/user_test.exs
index 8055ebd08..a00b1b5e2 100644
--- a/test/user_test.exs
+++ b/test/user_test.exs
@@ -194,7 +194,8 @@ defmodule Pleroma.UserTest do
     CommonAPI.follow(pending_follower, locked)
     CommonAPI.follow(pending_follower, locked)
     CommonAPI.follow(accepted_follower, locked)
-    Pleroma.FollowingRelationship.update(accepted_follower, locked, "accept")
+
+    Pleroma.FollowingRelationship.update(accepted_follower, locked, :follow_accept)
 
     assert [^pending_follower] = User.get_follow_requests(locked)
   end
@@ -319,7 +320,7 @@ defmodule Pleroma.UserTest do
           following_address: "http://localhost:4001/users/fuser2/following"
         })
 
-      {:ok, user} = User.follow(user, followed, "accept")
+      {:ok, user} = User.follow(user, followed, :follow_accept)
 
       {:ok, user, _activity} = User.unfollow(user, followed)
 
@@ -332,7 +333,7 @@ defmodule Pleroma.UserTest do
       followed = insert(:user)
       user = insert(:user)
 
-      {:ok, user} = User.follow(user, followed, "accept")
+      {:ok, user} = User.follow(user, followed, :follow_accept)
 
       assert User.following(user) == [user.follower_address, followed.follower_address]
 
@@ -353,7 +354,7 @@ defmodule Pleroma.UserTest do
   test "test if a user is following another user" do
     followed = insert(:user)
     user = insert(:user)
-    User.follow(user, followed, "accept")
+    User.follow(user, followed, :follow_accept)
 
     assert User.following?(user, followed)
     refute User.following?(followed, user)
@@ -1141,8 +1142,8 @@ defmodule Pleroma.UserTest do
       object_two = insert(:note, user: follower)
       activity_two = insert(:note_activity, user: follower, note: object_two)
 
-      {:ok, like, _} = CommonAPI.favorite(activity_two.id, user)
-      {:ok, like_two, _} = CommonAPI.favorite(activity.id, follower)
+      {:ok, like} = CommonAPI.favorite(user, activity_two.id)
+      {:ok, like_two} = CommonAPI.favorite(follower, activity.id)
       {:ok, repeat, _} = CommonAPI.repeat(activity_two.id, user)
 
       {:ok, job} = User.delete(user)
@@ -1404,7 +1405,7 @@ defmodule Pleroma.UserTest do
       bio = "A.k.a. @nick@domain.com"
 
       expected_text =
-        ~s(A.k.a. <span class="h-card"><a data-user="#{remote_user.id}" class="u-url mention" href="#{
+        ~s(A.k.a. <span class="h-card"><a class="u-url mention" data-user="#{remote_user.id}" href="#{
           remote_user.ap_id
         }" rel="ugc">@<span>nick@domain.com</span></a></span>)
 
diff --git a/test/web/activity_pub/activity_pub_controller_test.exs b/test/web/activity_pub/activity_pub_controller_test.exs
index 573853afa..fbacb3993 100644
--- a/test/web/activity_pub/activity_pub_controller_test.exs
+++ b/test/web/activity_pub/activity_pub_controller_test.exs
@@ -1239,16 +1239,56 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubControllerTest do
         filename: "an_image.jpg"
       }
 
-      conn =
+      object =
         conn
         |> assign(:user, user)
         |> post("/api/ap/upload_media", %{"file" => image, "description" => desc})
+        |> json_response(:created)
 
-      assert object = json_response(conn, :created)
       assert object["name"] == desc
       assert object["type"] == "Document"
       assert object["actor"] == user.ap_id
+      assert [%{"href" => object_href, "mediaType" => object_mediatype}] = object["url"]
+      assert is_binary(object_href)
+      assert object_mediatype == "image/jpeg"
+
+      activity_request = %{
+        "@context" => "https://www.w3.org/ns/activitystreams",
+        "type" => "Create",
+        "object" => %{
+          "type" => "Note",
+          "content" => "AP C2S test, attachment",
+          "attachment" => [object]
+        },
+        "to" => "https://www.w3.org/ns/activitystreams#Public",
+        "cc" => []
+      }
+
+      activity_response =
+        conn
+        |> assign(:user, user)
+        |> post("/users/#{user.nickname}/outbox", activity_request)
+        |> json_response(:created)
+
+      assert activity_response["id"]
+      assert activity_response["object"]
+      assert activity_response["actor"] == user.ap_id
+
+      assert %Object{data: %{"attachment" => [attachment]}} =
+               Object.normalize(activity_response["object"])
+
+      assert attachment["type"] == "Document"
+      assert attachment["name"] == desc
+
+      assert [
+               %{
+                 "href" => ^object_href,
+                 "type" => "Link",
+                 "mediaType" => ^object_mediatype
+               }
+             ] = attachment["url"]
 
+      # Fails if unauthenticated
       conn
       |> post("/api/ap/upload_media", %{"file" => image, "description" => desc})
       |> json_response(403)
diff --git a/test/web/activity_pub/activity_pub_test.exs b/test/web/activity_pub/activity_pub_test.exs
index 049b14498..17e7b97de 100644
--- a/test/web/activity_pub/activity_pub_test.exs
+++ b/test/web/activity_pub/activity_pub_test.exs
@@ -1900,14 +1900,14 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
       {:ok, a4} = CommonAPI.post(user2, %{"status" => "Agent Smith "})
       {:ok, a5} = CommonAPI.post(user1, %{"status" => "Red or Blue "})
 
-      {:ok, _, _} = CommonAPI.favorite(a4.id, user)
-      {:ok, _, _} = CommonAPI.favorite(a3.id, other_user)
-      {:ok, _, _} = CommonAPI.favorite(a3.id, user)
-      {:ok, _, _} = CommonAPI.favorite(a5.id, other_user)
-      {:ok, _, _} = CommonAPI.favorite(a5.id, user)
-      {:ok, _, _} = CommonAPI.favorite(a4.id, other_user)
-      {:ok, _, _} = CommonAPI.favorite(a1.id, user)
-      {:ok, _, _} = CommonAPI.favorite(a1.id, other_user)
+      {:ok, _} = CommonAPI.favorite(user, a4.id)
+      {:ok, _} = CommonAPI.favorite(other_user, a3.id)
+      {:ok, _} = CommonAPI.favorite(user, a3.id)
+      {:ok, _} = CommonAPI.favorite(other_user, a5.id)
+      {:ok, _} = CommonAPI.favorite(user, a5.id)
+      {:ok, _} = CommonAPI.favorite(other_user, a4.id)
+      {:ok, _} = CommonAPI.favorite(user, a1.id)
+      {:ok, _} = CommonAPI.favorite(other_user, a1.id)
       result = ActivityPub.fetch_favourites(user)
 
       assert Enum.map(result, & &1.id) == [a1.id, a5.id, a3.id, a4.id]
diff --git a/test/web/activity_pub/object_validator_test.exs b/test/web/activity_pub/object_validator_test.exs
new file mode 100644
index 000000000..3c5c3696e
--- /dev/null
+++ b/test/web/activity_pub/object_validator_test.exs
@@ -0,0 +1,83 @@
+defmodule Pleroma.Web.ActivityPub.ObjectValidatorTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Web.ActivityPub.ObjectValidator
+  alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
+  alias Pleroma.Web.ActivityPub.Utils
+  alias Pleroma.Web.CommonAPI
+
+  import Pleroma.Factory
+
+  describe "likes" do
+    setup do
+      user = insert(:user)
+      {:ok, post_activity} = CommonAPI.post(user, %{"status" => "uguu"})
+
+      valid_like = %{
+        "to" => [user.ap_id],
+        "cc" => [],
+        "type" => "Like",
+        "id" => Utils.generate_activity_id(),
+        "object" => post_activity.data["object"],
+        "actor" => user.ap_id,
+        "context" => "a context"
+      }
+
+      %{valid_like: valid_like, user: user, post_activity: post_activity}
+    end
+
+    test "returns ok when called in the ObjectValidator", %{valid_like: valid_like} do
+      {:ok, object, _meta} = ObjectValidator.validate(valid_like, [])
+
+      assert "id" in Map.keys(object)
+    end
+
+    test "is valid for a valid object", %{valid_like: valid_like} do
+      assert LikeValidator.cast_and_validate(valid_like).valid?
+    end
+
+    test "it errors when the actor is missing or not known", %{valid_like: valid_like} do
+      without_actor = Map.delete(valid_like, "actor")
+
+      refute LikeValidator.cast_and_validate(without_actor).valid?
+
+      with_invalid_actor = Map.put(valid_like, "actor", "invalidactor")
+
+      refute LikeValidator.cast_and_validate(with_invalid_actor).valid?
+    end
+
+    test "it errors when the object is missing or not known", %{valid_like: valid_like} do
+      without_object = Map.delete(valid_like, "object")
+
+      refute LikeValidator.cast_and_validate(without_object).valid?
+
+      with_invalid_object = Map.put(valid_like, "object", "invalidobject")
+
+      refute LikeValidator.cast_and_validate(with_invalid_object).valid?
+    end
+
+    test "it errors when the actor has already like the object", %{
+      valid_like: valid_like,
+      user: user,
+      post_activity: post_activity
+    } do
+      _like = CommonAPI.favorite(user, post_activity.id)
+
+      refute LikeValidator.cast_and_validate(valid_like).valid?
+    end
+
+    test "it works when actor or object are wrapped in maps", %{valid_like: valid_like} do
+      wrapped_like =
+        valid_like
+        |> Map.put("actor", %{"id" => valid_like["actor"]})
+        |> Map.put("object", %{"id" => valid_like["object"]})
+
+      validated = LikeValidator.cast_and_validate(wrapped_like)
+
+      assert validated.valid?
+
+      assert {:actor, valid_like["actor"]} in validated.changes
+      assert {:object, valid_like["object"]} in validated.changes
+    end
+  end
+end
diff --git a/test/web/activity_pub/object_validators/note_validator_test.exs b/test/web/activity_pub/object_validators/note_validator_test.exs
new file mode 100644
index 000000000..30c481ffb
--- /dev/null
+++ b/test/web/activity_pub/object_validators/note_validator_test.exs
@@ -0,0 +1,35 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.NoteValidatorTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Web.ActivityPub.ObjectValidators.NoteValidator
+  alias Pleroma.Web.ActivityPub.Utils
+
+  import Pleroma.Factory
+
+  describe "Notes" do
+    setup do
+      user = insert(:user)
+
+      note = %{
+        "id" => Utils.generate_activity_id(),
+        "type" => "Note",
+        "actor" => user.ap_id,
+        "to" => [user.follower_address],
+        "cc" => [],
+        "content" => "Hellow this is content.",
+        "context" => "xxx",
+        "summary" => "a post"
+      }
+
+      %{user: user, note: note}
+    end
+
+    test "a basic note validates", %{note: note} do
+      %{valid?: true} = NoteValidator.cast_and_validate(note)
+    end
+  end
+end
diff --git a/test/web/activity_pub/object_validators/types/date_time_test.exs b/test/web/activity_pub/object_validators/types/date_time_test.exs
new file mode 100644
index 000000000..3e17a9497
--- /dev/null
+++ b/test/web/activity_pub/object_validators/types/date_time_test.exs
@@ -0,0 +1,32 @@
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.Types.DateTimeTest do
+  alias Pleroma.Web.ActivityPub.ObjectValidators.Types.DateTime
+  use Pleroma.DataCase
+
+  test "it validates an xsd:Datetime" do
+    valid_strings = [
+      "2004-04-12T13:20:00",
+      "2004-04-12T13:20:15.5",
+      "2004-04-12T13:20:00-05:00",
+      "2004-04-12T13:20:00Z"
+    ]
+
+    invalid_strings = [
+      "2004-04-12T13:00",
+      "2004-04-1213:20:00",
+      "99-04-12T13:00",
+      "2004-04-12"
+    ]
+
+    assert {:ok, "2004-04-01T12:00:00Z"} == DateTime.cast("2004-04-01T12:00:00Z")
+
+    Enum.each(valid_strings, fn date_time ->
+      result = DateTime.cast(date_time)
+      assert {:ok, _} = result
+    end)
+
+    Enum.each(invalid_strings, fn date_time ->
+      result = DateTime.cast(date_time)
+      assert :error == result
+    end)
+  end
+end
diff --git a/test/web/activity_pub/object_validators/types/object_id_test.exs b/test/web/activity_pub/object_validators/types/object_id_test.exs
new file mode 100644
index 000000000..834213182
--- /dev/null
+++ b/test/web/activity_pub/object_validators/types/object_id_test.exs
@@ -0,0 +1,37 @@
+defmodule Pleroma.Web.ObjectValidators.Types.ObjectIDTest do
+  alias Pleroma.Web.ActivityPub.ObjectValidators.Types.ObjectID
+  use Pleroma.DataCase
+
+  @uris [
+    "http://lain.com/users/lain",
+    "http://lain.com",
+    "https://lain.com/object/1"
+  ]
+
+  @non_uris [
+    "https://",
+    "rin",
+    1,
+    :x,
+    %{"1" => 2}
+  ]
+
+  test "it accepts http uris" do
+    Enum.each(@uris, fn uri ->
+      assert {:ok, uri} == ObjectID.cast(uri)
+    end)
+  end
+
+  test "it accepts an object with a nested uri id" do
+    Enum.each(@uris, fn uri ->
+      assert {:ok, uri} == ObjectID.cast(%{"id" => uri})
+    end)
+  end
+
+  test "it rejects non-uri strings" do
+    Enum.each(@non_uris, fn non_uri ->
+      assert :error == ObjectID.cast(non_uri)
+      assert :error == ObjectID.cast(%{"id" => non_uri})
+    end)
+  end
+end
diff --git a/test/web/activity_pub/pipeline_test.exs b/test/web/activity_pub/pipeline_test.exs
new file mode 100644
index 000000000..f3c437498
--- /dev/null
+++ b/test/web/activity_pub/pipeline_test.exs
@@ -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.ActivityPub.PipelineTest do
+  use Pleroma.DataCase
+
+  import Mock
+  import Pleroma.Factory
+
+  describe "common_pipeline/2" do
+    test "it goes through validation, filtering, persisting, side effects and federation for local activities" do
+      activity = insert(:note_activity)
+      meta = [local: true]
+
+      with_mocks([
+        {Pleroma.Web.ActivityPub.ObjectValidator, [], [validate: fn o, m -> {:ok, o, m} end]},
+        {
+          Pleroma.Web.ActivityPub.MRF,
+          [],
+          [filter: fn o -> {:ok, o} end]
+        },
+        {
+          Pleroma.Web.ActivityPub.ActivityPub,
+          [],
+          [persist: fn o, m -> {:ok, o, m} end]
+        },
+        {
+          Pleroma.Web.ActivityPub.SideEffects,
+          [],
+          [handle: fn o, m -> {:ok, o, m} end]
+        },
+        {
+          Pleroma.Web.Federator,
+          [],
+          [publish: fn _o -> :ok end]
+        }
+      ]) do
+        assert {:ok, ^activity, ^meta} =
+                 Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
+
+        assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
+        assert_called(Pleroma.Web.ActivityPub.MRF.filter(activity))
+        assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
+        assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
+        assert_called(Pleroma.Web.Federator.publish(activity))
+      end
+    end
+
+    test "it goes through validation, filtering, persisting, side effects without federation for remote activities" do
+      activity = insert(:note_activity)
+      meta = [local: false]
+
+      with_mocks([
+        {Pleroma.Web.ActivityPub.ObjectValidator, [], [validate: fn o, m -> {:ok, o, m} end]},
+        {
+          Pleroma.Web.ActivityPub.MRF,
+          [],
+          [filter: fn o -> {:ok, o} end]
+        },
+        {
+          Pleroma.Web.ActivityPub.ActivityPub,
+          [],
+          [persist: fn o, m -> {:ok, o, m} end]
+        },
+        {
+          Pleroma.Web.ActivityPub.SideEffects,
+          [],
+          [handle: fn o, m -> {:ok, o, m} end]
+        },
+        {
+          Pleroma.Web.Federator,
+          [],
+          []
+        }
+      ]) do
+        assert {:ok, ^activity, ^meta} =
+                 Pleroma.Web.ActivityPub.Pipeline.common_pipeline(activity, meta)
+
+        assert_called(Pleroma.Web.ActivityPub.ObjectValidator.validate(activity, meta))
+        assert_called(Pleroma.Web.ActivityPub.MRF.filter(activity))
+        assert_called(Pleroma.Web.ActivityPub.ActivityPub.persist(activity, meta))
+        assert_called(Pleroma.Web.ActivityPub.SideEffects.handle(activity, meta))
+      end
+    end
+  end
+end
diff --git a/test/web/activity_pub/side_effects_test.exs b/test/web/activity_pub/side_effects_test.exs
new file mode 100644
index 000000000..b67bd14b3
--- /dev/null
+++ b/test/web/activity_pub/side_effects_test.exs
@@ -0,0 +1,34 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.SideEffectsTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.Object
+  alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.Builder
+  alias Pleroma.Web.ActivityPub.SideEffects
+  alias Pleroma.Web.CommonAPI
+
+  import Pleroma.Factory
+
+  describe "like objects" do
+    setup do
+      user = insert(:user)
+      {:ok, post} = CommonAPI.post(user, %{"status" => "hey"})
+
+      {:ok, like_data, _meta} = Builder.like(user, post.object)
+      {:ok, like, _meta} = ActivityPub.persist(like_data, local: true)
+
+      %{like: like, user: user}
+    end
+
+    test "add the like to the original object", %{like: like, user: user} do
+      {:ok, like, _} = SideEffects.handle(like)
+      object = Object.get_by_ap_id(like.data["object"])
+      assert object.data["like_count"] == 1
+      assert user.ap_id in object.data["likes"]
+    end
+  end
+end
diff --git a/test/web/activity_pub/transmogrifier_test.exs b/test/web/activity_pub/transmogrifier_test.exs
index b2cabbd30..2332029e5 100644
--- a/test/web/activity_pub/transmogrifier_test.exs
+++ b/test/web/activity_pub/transmogrifier_test.exs
@@ -334,7 +334,9 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
         |> Poison.decode!()
         |> Map.put("object", activity.data["object"])
 
-      {:ok, %Activity{data: data, local: false}} = Transmogrifier.handle_incoming(data)
+      {:ok, %Activity{data: data, local: false} = activity} = Transmogrifier.handle_incoming(data)
+
+      refute Enum.empty?(activity.recipients)
 
       assert data["actor"] == "http://mastodon.example.org/users/admin"
       assert data["type"] == "Like"
@@ -1228,19 +1230,13 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
       attachment = %{
         "type" => "Link",
         "mediaType" => "video/mp4",
-        "href" =>
-          "https://peertube.moe/static/webseed/df5f464b-be8d-46fb-ad81-2d4c2d1630e3-480.mp4",
-        "mimeType" => "video/mp4",
-        "size" => 5_015_880,
         "url" => [
           %{
             "href" =>
               "https://peertube.moe/static/webseed/df5f464b-be8d-46fb-ad81-2d4c2d1630e3-480.mp4",
-            "mediaType" => "video/mp4",
-            "type" => "Link"
+            "mediaType" => "video/mp4"
           }
-        ],
-        "width" => 480
+        ]
       }
 
       assert object.data["url"] ==
@@ -1622,7 +1618,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
         })
 
       user_two = insert(:user)
-      Pleroma.FollowingRelationship.follow(user_two, user, "accept")
+      Pleroma.FollowingRelationship.follow(user_two, user, :follow_accept)
 
       {:ok, activity} = CommonAPI.post(user, %{"status" => "test"})
       {:ok, unrelated_activity} = CommonAPI.post(user_two, %{"status" => "test"})
@@ -2061,11 +2057,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
                  %{
                    "mediaType" => "video/mp4",
                    "url" => [
-                     %{
-                       "href" => "https://peertube.moe/stat-480.mp4",
-                       "mediaType" => "video/mp4",
-                       "type" => "Link"
-                     }
+                     %{"href" => "https://peertube.moe/stat-480.mp4", "mediaType" => "video/mp4"}
                    ]
                  }
                ]
@@ -2083,23 +2075,13 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
                  %{
                    "mediaType" => "video/mp4",
                    "url" => [
-                     %{
-                       "href" => "https://pe.er/stat-480.mp4",
-                       "mediaType" => "video/mp4",
-                       "type" => "Link"
-                     }
+                     %{"href" => "https://pe.er/stat-480.mp4", "mediaType" => "video/mp4"}
                    ]
                  },
                  %{
-                   "href" => "https://pe.er/stat-480.mp4",
                    "mediaType" => "video/mp4",
-                   "mimeType" => "video/mp4",
                    "url" => [
-                     %{
-                       "href" => "https://pe.er/stat-480.mp4",
-                       "mediaType" => "video/mp4",
-                       "type" => "Link"
-                     }
+                     %{"href" => "https://pe.er/stat-480.mp4", "mediaType" => "video/mp4"}
                    ]
                  }
                ]
diff --git a/test/web/activity_pub/views/object_view_test.exs b/test/web/activity_pub/views/object_view_test.exs
index de5ffc5b3..6c006206b 100644
--- a/test/web/activity_pub/views/object_view_test.exs
+++ b/test/web/activity_pub/views/object_view_test.exs
@@ -59,7 +59,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectViewTest do
     object = Object.normalize(note)
     user = insert(:user)
 
-    {:ok, like_activity, _} = CommonAPI.favorite(note.id, user)
+    {:ok, like_activity} = CommonAPI.favorite(user, note.id)
 
     result = ObjectView.render("object.json", %{object: like_activity})
 
diff --git a/test/web/admin_api/admin_api_controller_test.exs b/test/web/admin_api/admin_api_controller_test.exs
index fe8a086d8..f02f6ae7a 100644
--- a/test/web/admin_api/admin_api_controller_test.exs
+++ b/test/web/admin_api/admin_api_controller_test.exs
@@ -625,6 +625,39 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
 
       assert json_response(conn, :forbidden)
     end
+
+    test "email with +", %{conn: conn, admin: admin} do
+      recipient_email = "foo+bar@baz.com"
+
+      conn
+      |> put_req_header("content-type", "application/json;charset=utf-8")
+      |> post("/api/pleroma/admin/users/email_invite", %{email: recipient_email})
+      |> json_response(:no_content)
+
+      token_record =
+        Pleroma.UserInviteToken
+        |> Repo.all()
+        |> List.last()
+
+      assert token_record
+      refute token_record.used
+
+      notify_email = Config.get([:instance, :notify_email])
+      instance_name = Config.get([:instance, :name])
+
+      email =
+        Pleroma.Emails.UserEmail.user_invitation_email(
+          admin,
+          token_record,
+          recipient_email
+        )
+
+      Swoosh.TestAssertions.assert_email_sent(
+        from: {instance_name, notify_email},
+        to: recipient_email,
+        html_body: email.html_body
+      )
+    end
   end
 
   describe "POST /api/pleroma/admin/users/email_invite, with invalid config" do
@@ -637,7 +670,8 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
 
       conn = post(conn, "/api/pleroma/admin/users/email_invite?email=foo@bar.com&name=JD")
 
-      assert json_response(conn, :internal_server_error)
+      assert json_response(conn, :bad_request) ==
+               "To send invites you need to set the `invites_enabled` option to true."
     end
 
     test "it returns 500 if `registrations_open` is enabled", %{conn: conn} do
@@ -646,7 +680,8 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
 
       conn = post(conn, "/api/pleroma/admin/users/email_invite?email=foo@bar.com&name=JD")
 
-      assert json_response(conn, :internal_server_error)
+      assert json_response(conn, :bad_request) ==
+               "To send invites you need to set the `registrations_open` option to false."
     end
   end
 
diff --git a/test/web/api_spec/app_operation_test.exs b/test/web/api_spec/app_operation_test.exs
new file mode 100644
index 000000000..5b96abb44
--- /dev/null
+++ b/test/web/api_spec/app_operation_test.exs
@@ -0,0 +1,45 @@
+# 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.AppOperationTest do
+  use Pleroma.Web.ConnCase, async: true
+
+  alias Pleroma.Web.ApiSpec
+  alias Pleroma.Web.ApiSpec.Schemas.AppCreateRequest
+  alias Pleroma.Web.ApiSpec.Schemas.AppCreateResponse
+
+  import OpenApiSpex.TestAssertions
+  import Pleroma.Factory
+
+  test "AppCreateRequest example matches schema" do
+    api_spec = ApiSpec.spec()
+    schema = AppCreateRequest.schema()
+    assert_schema(schema.example, "AppCreateRequest", api_spec)
+  end
+
+  test "AppCreateResponse example matches schema" do
+    api_spec = ApiSpec.spec()
+    schema = AppCreateResponse.schema()
+    assert_schema(schema.example, "AppCreateResponse", api_spec)
+  end
+
+  test "AppController produces a AppCreateResponse", %{conn: conn} do
+    api_spec = ApiSpec.spec()
+    app_attrs = build(:oauth_app)
+
+    json =
+      conn
+      |> put_req_header("content-type", "application/json")
+      |> post(
+        "/api/v1/apps",
+        Jason.encode!(%{
+          client_name: app_attrs.client_name,
+          redirect_uris: app_attrs.redirect_uris
+        })
+      )
+      |> json_response(200)
+
+    assert_schema(json, "AppCreateResponse", api_spec)
+  end
+end
diff --git a/test/web/common_api/common_api_test.exs b/test/web/common_api/common_api_test.exs
index 0da0bd2e2..b12be973f 100644
--- a/test/web/common_api/common_api_test.exs
+++ b/test/web/common_api/common_api_test.exs
@@ -284,9 +284,12 @@ defmodule Pleroma.Web.CommonAPITest do
       user = insert(:user)
       other_user = insert(:user)
 
-      {:ok, activity} = CommonAPI.post(other_user, %{"status" => "cofe"})
+      {:ok, post_activity} = CommonAPI.post(other_user, %{"status" => "cofe"})
 
-      {:ok, %Activity{}, _} = CommonAPI.favorite(activity.id, user)
+      {:ok, %Activity{data: data}} = CommonAPI.favorite(user, post_activity.id)
+      assert data["type"] == "Like"
+      assert data["actor"] == user.ap_id
+      assert data["object"] == post_activity.data["object"]
     end
 
     test "retweeting a status twice returns the status" do
@@ -298,13 +301,13 @@ defmodule Pleroma.Web.CommonAPITest do
       {:ok, ^activity, ^object} = CommonAPI.repeat(activity.id, user)
     end
 
-    test "favoriting a status twice returns the status" do
+    test "favoriting a status twice returns ok, but without the like activity" do
       user = insert(:user)
       other_user = insert(:user)
 
       {:ok, activity} = CommonAPI.post(other_user, %{"status" => "cofe"})
-      {:ok, %Activity{} = activity, object} = CommonAPI.favorite(activity.id, user)
-      {:ok, ^activity, ^object} = CommonAPI.favorite(activity.id, user)
+      {:ok, %Activity{}} = CommonAPI.favorite(user, activity.id)
+      assert {:ok, :already_liked} = CommonAPI.favorite(user, activity.id)
     end
   end
 
@@ -562,7 +565,7 @@ defmodule Pleroma.Web.CommonAPITest do
       assert {:ok, follower, followed, %{id: activity_id, data: %{"state" => "pending"}}} =
                CommonAPI.follow(follower, followed)
 
-      assert User.get_follow_state(follower, followed) == "pending"
+      assert User.get_follow_state(follower, followed) == :follow_pending
       assert {:ok, follower} = CommonAPI.unfollow(follower, followed)
       assert User.get_follow_state(follower, followed) == nil
 
@@ -584,7 +587,7 @@ defmodule Pleroma.Web.CommonAPITest do
       assert {:ok, follower, followed, %{id: activity_id, data: %{"state" => "pending"}}} =
                CommonAPI.follow(follower, followed)
 
-      assert User.get_follow_state(follower, followed) == "pending"
+      assert User.get_follow_state(follower, followed) == :follow_pending
       assert {:ok, follower} = CommonAPI.unfollow(follower, followed)
       assert User.get_follow_state(follower, followed) == nil
 
diff --git a/test/web/common_api/common_api_utils_test.exs b/test/web/common_api/common_api_utils_test.exs
index d383d1714..98cf02d49 100644
--- a/test/web/common_api/common_api_utils_test.exs
+++ b/test/web/common_api/common_api_utils_test.exs
@@ -159,11 +159,11 @@ defmodule Pleroma.Web.CommonAPI.UtilsTest do
       {output, _, _} = Utils.format_input(text, "text/markdown")
 
       assert output ==
-               ~s(<p><strong>hello world</strong></p><p><em>another <span class="h-card"><a data-user="#{
+               ~s(<p><strong>hello world</strong></p><p><em>another <span class="h-card"><a class="u-url mention" data-user="#{
                  user.id
-               }" class="u-url mention" href="http://foo.com/user__test" rel="ugc">@<span>user__test</span></a></span> and <span class="h-card"><a data-user="#{
+               }" href="http://foo.com/user__test" rel="ugc">@<span>user__test</span></a></span> and <span class="h-card"><a class="u-url mention" data-user="#{
                  user.id
-               }" class="u-url mention" href="http://foo.com/user__test" rel="ugc">@<span>user__test</span></a></span> <a href="http://google.com" rel="ugc">google.com</a> paragraph</em></p>)
+               }" href="http://foo.com/user__test" rel="ugc">@<span>user__test</span></a></span> <a href="http://google.com" rel="ugc">google.com</a> paragraph</em></p>)
     end
   end
 
diff --git a/test/web/mastodon_api/controllers/account_controller/update_credentials_test.exs b/test/web/mastodon_api/controllers/account_controller/update_credentials_test.exs
index b693c1a47..2d256f63c 100644
--- a/test/web/mastodon_api/controllers/account_controller/update_credentials_test.exs
+++ b/test/web/mastodon_api/controllers/account_controller/update_credentials_test.exs
@@ -82,9 +82,9 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController.UpdateCredentialsTest do
       assert user_data = json_response(conn, 200)
 
       assert user_data["note"] ==
-               ~s(I drink <a class="hashtag" data-tag="cofe" href="http://localhost:4001/tag/cofe">#cofe</a> with <span class="h-card"><a data-user="#{
+               ~s(I drink <a class="hashtag" data-tag="cofe" href="http://localhost:4001/tag/cofe">#cofe</a> with <span class="h-card"><a class="u-url mention" data-user="#{
                  user2.id
-               }" class="u-url mention" href="#{user2.ap_id}" rel="ugc">@<span>#{user2.nickname}</span></a></span><br/><br/>suya..)
+               }" href="#{user2.ap_id}" rel="ugc">@<span>#{user2.nickname}</span></a></span><br/><br/>suya..)
     end
 
     test "updates the user's locking status", %{conn: conn} do
@@ -273,7 +273,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController.UpdateCredentialsTest do
     test "update fields", %{conn: conn} do
       fields = [
         %{"name" => "<a href=\"http://google.com\">foo</a>", "value" => "<script>bar</script>"},
-        %{"name" => "link", "value" => "cofe.io"}
+        %{"name" => "link.io", "value" => "cofe.io"}
       ]
 
       account_data =
@@ -283,7 +283,10 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController.UpdateCredentialsTest do
 
       assert account_data["fields"] == [
                %{"name" => "<a href=\"http://google.com\">foo</a>", "value" => "bar"},
-               %{"name" => "link", "value" => ~S(<a href="http://cofe.io" rel="ugc">cofe.io</a>)}
+               %{
+                 "name" => "link.io",
+                 "value" => ~S(<a href="http://cofe.io" rel="ugc">cofe.io</a>)
+               }
              ]
 
       assert account_data["source"]["fields"] == [
@@ -291,14 +294,16 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController.UpdateCredentialsTest do
                  "name" => "<a href=\"http://google.com\">foo</a>",
                  "value" => "<script>bar</script>"
                },
-               %{"name" => "link", "value" => "cofe.io"}
+               %{"name" => "link.io", "value" => "cofe.io"}
              ]
+    end
 
+    test "update fields via x-www-form-urlencoded", %{conn: conn} do
       fields =
         [
           "fields_attributes[1][name]=link",
-          "fields_attributes[1][value]=cofe.io",
-          "fields_attributes[0][name]=<a href=\"http://google.com\">foo</a>",
+          "fields_attributes[1][value]=http://cofe.io",
+          "fields_attributes[0][name]=foo",
           "fields_attributes[0][value]=bar"
         ]
         |> Enum.join("&")
@@ -310,32 +315,49 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController.UpdateCredentialsTest do
         |> json_response(200)
 
       assert account["fields"] == [
-               %{"name" => "<a href=\"http://google.com\">foo</a>", "value" => "bar"},
-               %{"name" => "link", "value" => ~S(<a href="http://cofe.io" rel="ugc">cofe.io</a>)}
+               %{"name" => "foo", "value" => "bar"},
+               %{
+                 "name" => "link",
+                 "value" => ~S(<a href="http://cofe.io" rel="ugc">http://cofe.io</a>)
+               }
              ]
 
       assert account["source"]["fields"] == [
-               %{
-                 "name" => "<a href=\"http://google.com\">foo</a>",
-                 "value" => "bar"
-               },
-               %{"name" => "link", "value" => "cofe.io"}
+               %{"name" => "foo", "value" => "bar"},
+               %{"name" => "link", "value" => "http://cofe.io"}
              ]
+    end
 
+    test "update fields with empty name", %{conn: conn} do
+      fields = [
+        %{"name" => "foo", "value" => ""},
+        %{"name" => "", "value" => "bar"}
+      ]
+
+      account =
+        conn
+        |> patch("/api/v1/accounts/update_credentials", %{"fields_attributes" => fields})
+        |> json_response(200)
+
+      assert account["fields"] == [
+               %{"name" => "foo", "value" => ""}
+             ]
+    end
+
+    test "update fields when invalid request", %{conn: conn} do
       name_limit = Pleroma.Config.get([:instance, :account_field_name_length])
       value_limit = Pleroma.Config.get([:instance, :account_field_value_length])
 
+      long_name = Enum.map(0..name_limit, fn _ -> "x" end) |> Enum.join()
       long_value = Enum.map(0..value_limit, fn _ -> "x" end) |> Enum.join()
 
-      fields = [%{"name" => "<b>foo<b>", "value" => long_value}]
+      fields = [%{"name" => "foo", "value" => long_value}]
 
       assert %{"error" => "Invalid request"} ==
                conn
                |> patch("/api/v1/accounts/update_credentials", %{"fields_attributes" => fields})
                |> json_response(403)
 
-      long_name = Enum.map(0..name_limit, fn _ -> "x" end) |> Enum.join()
-
       fields = [%{"name" => long_name, "value" => "bar"}]
 
       assert %{"error" => "Invalid request"} ==
@@ -346,7 +368,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController.UpdateCredentialsTest do
       Pleroma.Config.put([:instance, :max_account_fields], 1)
 
       fields = [
-        %{"name" => "<b>foo<b>", "value" => "<i>bar</i>"},
+        %{"name" => "foo", "value" => "bar"},
         %{"name" => "link", "value" => "cofe.io"}
       ]
 
@@ -354,20 +376,6 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController.UpdateCredentialsTest do
                conn
                |> patch("/api/v1/accounts/update_credentials", %{"fields_attributes" => fields})
                |> json_response(403)
-
-      fields = [
-        %{"name" => "foo", "value" => ""},
-        %{"name" => "", "value" => "bar"}
-      ]
-
-      account =
-        conn
-        |> patch("/api/v1/accounts/update_credentials", %{"fields_attributes" => fields})
-        |> json_response(200)
-
-      assert account["fields"] == [
-               %{"name" => "foo", "value" => ""}
-             ]
     end
   end
 end
diff --git a/test/web/mastodon_api/controllers/account_controller_test.exs b/test/web/mastodon_api/controllers/account_controller_test.exs
index a9fa0ce48..a450a732c 100644
--- a/test/web/mastodon_api/controllers/account_controller_test.exs
+++ b/test/web/mastodon_api/controllers/account_controller_test.exs
@@ -794,7 +794,9 @@ defmodule Pleroma.Web.MastodonAPI.AccountControllerTest do
 
     test "Account registration via Application", %{conn: conn} do
       conn =
-        post(conn, "/api/v1/apps", %{
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/v1/apps", %{
           client_name: "client_name",
           redirect_uris: "urn:ietf:wg:oauth:2.0:oob",
           scopes: "read, write, follow"
diff --git a/test/web/mastodon_api/controllers/app_controller_test.exs b/test/web/mastodon_api/controllers/app_controller_test.exs
index 77d234d67..e7b11d14e 100644
--- a/test/web/mastodon_api/controllers/app_controller_test.exs
+++ b/test/web/mastodon_api/controllers/app_controller_test.exs
@@ -16,8 +16,7 @@ defmodule Pleroma.Web.MastodonAPI.AppControllerTest do
 
     conn =
       conn
-      |> assign(:user, token.user)
-      |> assign(:token, token)
+      |> put_req_header("authorization", "Bearer #{token.token}")
       |> get("/api/v1/apps/verify_credentials")
 
     app = Repo.preload(token, :app).app
@@ -37,6 +36,7 @@ defmodule Pleroma.Web.MastodonAPI.AppControllerTest do
 
     conn =
       conn
+      |> put_req_header("content-type", "application/json")
       |> assign(:user, user)
       |> post("/api/v1/apps", %{
         client_name: app_attrs.client_name,
diff --git a/test/web/mastodon_api/controllers/follow_request_controller_test.exs b/test/web/mastodon_api/controllers/follow_request_controller_test.exs
index dd848821a..d8dbe4800 100644
--- a/test/web/mastodon_api/controllers/follow_request_controller_test.exs
+++ b/test/web/mastodon_api/controllers/follow_request_controller_test.exs
@@ -21,7 +21,7 @@ defmodule Pleroma.Web.MastodonAPI.FollowRequestControllerTest do
       other_user = insert(:user)
 
       {:ok, _activity} = ActivityPub.follow(other_user, user)
-      {:ok, other_user} = User.follow(other_user, user, "pending")
+      {:ok, other_user} = User.follow(other_user, user, :follow_pending)
 
       assert User.following?(other_user, user) == false
 
@@ -35,7 +35,7 @@ defmodule Pleroma.Web.MastodonAPI.FollowRequestControllerTest do
       other_user = insert(:user)
 
       {:ok, _activity} = ActivityPub.follow(other_user, user)
-      {:ok, other_user} = User.follow(other_user, user, "pending")
+      {:ok, other_user} = User.follow(other_user, user, :follow_pending)
 
       user = User.get_cached_by_id(user.id)
       other_user = User.get_cached_by_id(other_user.id)
diff --git a/test/web/mastodon_api/controllers/notification_controller_test.exs b/test/web/mastodon_api/controllers/notification_controller_test.exs
index e24f7923e..8c815b415 100644
--- a/test/web/mastodon_api/controllers/notification_controller_test.exs
+++ b/test/web/mastodon_api/controllers/notification_controller_test.exs
@@ -46,7 +46,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationControllerTest do
       |> get("/api/v1/notifications")
 
     expected_response =
-      "hi <span class=\"h-card\"><a data-user=\"#{user.id}\" class=\"u-url mention\" href=\"#{
+      "hi <span class=\"h-card\"><a class=\"u-url mention\" data-user=\"#{user.id}\" href=\"#{
         user.ap_id
       }\" rel=\"ugc\">@<span>#{user.nickname}</span></a></span>"
 
@@ -65,7 +65,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationControllerTest do
     conn = get(conn, "/api/v1/notifications/#{notification.id}")
 
     expected_response =
-      "hi <span class=\"h-card\"><a data-user=\"#{user.id}\" class=\"u-url mention\" href=\"#{
+      "hi <span class=\"h-card\"><a class=\"u-url mention\" data-user=\"#{user.id}\" href=\"#{
         user.ap_id
       }\" rel=\"ugc\">@<span>#{user.nickname}</span></a></span>"
 
@@ -73,7 +73,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationControllerTest do
     assert response == expected_response
   end
 
-  test "dismissing a single notification" do
+  test "dismissing a single notification (deprecated endpoint)" do
     %{user: user, conn: conn} = oauth_access(["write:notifications"])
     other_user = insert(:user)
 
@@ -89,6 +89,22 @@ defmodule Pleroma.Web.MastodonAPI.NotificationControllerTest do
     assert %{} = json_response(conn, 200)
   end
 
+  test "dismissing a single notification" do
+    %{user: user, conn: conn} = oauth_access(["write:notifications"])
+    other_user = insert(:user)
+
+    {:ok, activity} = CommonAPI.post(other_user, %{"status" => "hi @#{user.nickname}"})
+
+    {:ok, [notification]} = Notification.create_notifications(activity)
+
+    conn =
+      conn
+      |> assign(:user, user)
+      |> post("/api/v1/notifications/#{notification.id}/dismiss")
+
+    assert %{} = json_response(conn, 200)
+  end
+
   test "clearing all notifications" do
     %{user: user, conn: conn} = oauth_access(["write:notifications", "read:notifications"])
     other_user = insert(:user)
@@ -214,10 +230,10 @@ defmodule Pleroma.Web.MastodonAPI.NotificationControllerTest do
       {:ok, private_activity} =
         CommonAPI.post(other_user, %{"status" => ".", "visibility" => "private"})
 
-      {:ok, _, _} = CommonAPI.favorite(public_activity.id, user)
-      {:ok, _, _} = CommonAPI.favorite(direct_activity.id, user)
-      {:ok, _, _} = CommonAPI.favorite(unlisted_activity.id, user)
-      {:ok, _, _} = CommonAPI.favorite(private_activity.id, user)
+      {:ok, _} = CommonAPI.favorite(user, public_activity.id)
+      {:ok, _} = CommonAPI.favorite(user, direct_activity.id)
+      {:ok, _} = CommonAPI.favorite(user, unlisted_activity.id)
+      {:ok, _} = CommonAPI.favorite(user, private_activity.id)
 
       activity_ids =
         conn
@@ -294,7 +310,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationControllerTest do
 
     {:ok, mention_activity} = CommonAPI.post(other_user, %{"status" => "hey @#{user.nickname}"})
     {:ok, create_activity} = CommonAPI.post(user, %{"status" => "hey"})
-    {:ok, favorite_activity, _} = CommonAPI.favorite(create_activity.id, other_user)
+    {:ok, favorite_activity} = CommonAPI.favorite(other_user, create_activity.id)
     {:ok, reblog_activity, _} = CommonAPI.repeat(create_activity.id, other_user)
     {:ok, _, _, follow_activity} = CommonAPI.follow(other_user, user)
 
@@ -330,7 +346,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationControllerTest do
 
     {:ok, mention_activity} = CommonAPI.post(other_user, %{"status" => "hey @#{user.nickname}"})
     {:ok, create_activity} = CommonAPI.post(user, %{"status" => "hey"})
-    {:ok, favorite_activity, _} = CommonAPI.favorite(create_activity.id, other_user)
+    {:ok, favorite_activity} = CommonAPI.favorite(other_user, create_activity.id)
     {:ok, reblog_activity, _} = CommonAPI.repeat(create_activity.id, other_user)
     {:ok, _, _, follow_activity} = CommonAPI.follow(other_user, user)
 
diff --git a/test/web/mastodon_api/controllers/status_controller_test.exs b/test/web/mastodon_api/controllers/status_controller_test.exs
index 6b126217a..162f7b1b2 100644
--- a/test/web/mastodon_api/controllers/status_controller_test.exs
+++ b/test/web/mastodon_api/controllers/status_controller_test.exs
@@ -775,7 +775,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
       user1 = insert(:user)
       user2 = insert(:user)
       user3 = insert(:user)
-      CommonAPI.favorite(activity.id, user2)
+      {:ok, _} = CommonAPI.favorite(user2, activity.id)
       {:ok, _bookmark} = Pleroma.Bookmark.create(user2.id, activity.id)
       {:ok, reblog_activity1, _object} = CommonAPI.repeat(activity.id, user1)
       {:ok, _, _object} = CommonAPI.repeat(activity.id, user2)
@@ -850,11 +850,15 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
       activity = insert(:note_activity)
 
       post(conn, "/api/v1/statuses/#{activity.id}/favourite")
-      assert post(conn, "/api/v1/statuses/#{activity.id}/favourite") |> json_response(200)
+
+      assert post(conn, "/api/v1/statuses/#{activity.id}/favourite")
+             |> json_response(200)
     end
 
     test "returns 404 error for a wrong id", %{conn: conn} do
-      conn = post(conn, "/api/v1/statuses/1/favourite")
+      conn =
+        conn
+        |> post("/api/v1/statuses/1/favourite")
 
       assert json_response(conn, 404) == %{"error" => "Record not found"}
     end
@@ -866,7 +870,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
     test "unfavorites a status and returns it", %{user: user, conn: conn} do
       activity = insert(:note_activity)
 
-      {:ok, _, _} = CommonAPI.favorite(activity.id, user)
+      {:ok, _} = CommonAPI.favorite(user, activity.id)
 
       conn = post(conn, "/api/v1/statuses/#{activity.id}/unfavourite")
 
@@ -1178,7 +1182,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
 
     test "returns users who have favorited the status", %{conn: conn, activity: activity} do
       other_user = insert(:user)
-      {:ok, _, _} = CommonAPI.favorite(activity.id, other_user)
+      {:ok, _} = CommonAPI.favorite(other_user, activity.id)
 
       response =
         conn
@@ -1209,7 +1213,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
       other_user = insert(:user)
       {:ok, _user_relationship} = User.block(user, other_user)
 
-      {:ok, _, _} = CommonAPI.favorite(activity.id, other_user)
+      {:ok, _} = CommonAPI.favorite(other_user, activity.id)
 
       response =
         conn
@@ -1221,7 +1225,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
 
     test "does not fail on an unauthenticated request", %{activity: activity} do
       other_user = insert(:user)
-      {:ok, _, _} = CommonAPI.favorite(activity.id, other_user)
+      {:ok, _} = CommonAPI.favorite(other_user, activity.id)
 
       response =
         build_conn()
@@ -1241,7 +1245,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
           "visibility" => "direct"
         })
 
-      {:ok, _, _} = CommonAPI.favorite(activity.id, other_user)
+      {:ok, _} = CommonAPI.favorite(other_user, activity.id)
 
       favourited_by_url = "/api/v1/statuses/#{activity.id}/favourited_by"
 
@@ -1401,7 +1405,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
     {:ok, _} = CommonAPI.post(other_user, %{"status" => "bla"})
     {:ok, activity} = CommonAPI.post(other_user, %{"status" => "traps are happy"})
 
-    {:ok, _, _} = CommonAPI.favorite(activity.id, user)
+    {:ok, _} = CommonAPI.favorite(user, activity.id)
 
     first_conn = get(conn, "/api/v1/favourites")
 
@@ -1418,7 +1422,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
           "Trees Are Never Sad Look At Them Every Once In Awhile They're Quite Beautiful."
       })
 
-    {:ok, _, _} = CommonAPI.favorite(second_activity.id, user)
+    {:ok, _} = CommonAPI.favorite(user, second_activity.id)
 
     last_like = status["id"]
 
diff --git a/test/web/mastodon_api/views/notification_view_test.exs b/test/web/mastodon_api/views/notification_view_test.exs
index 81eefd735..c3ec9dfec 100644
--- a/test/web/mastodon_api/views/notification_view_test.exs
+++ b/test/web/mastodon_api/views/notification_view_test.exs
@@ -54,7 +54,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationViewTest do
     user = insert(:user)
     another_user = insert(:user)
     {:ok, create_activity} = CommonAPI.post(user, %{"status" => "hey"})
-    {:ok, favorite_activity, _object} = CommonAPI.favorite(create_activity.id, another_user)
+    {:ok, favorite_activity} = CommonAPI.favorite(another_user, create_activity.id)
     {:ok, [notification]} = Notification.create_notifications(favorite_activity)
     create_activity = Activity.get_by_id(create_activity.id)
 
diff --git a/test/web/node_info_test.exs b/test/web/node_info_test.exs
index 43f322606..9bcc07b37 100644
--- a/test/web/node_info_test.exs
+++ b/test/web/node_info_test.exs
@@ -7,6 +7,8 @@ defmodule Pleroma.Web.NodeInfoTest do
 
   import Pleroma.Factory
 
+  alias Pleroma.Config
+
   setup do: clear_config([:mrf_simple])
   setup do: clear_config(:instance)
 
@@ -47,7 +49,7 @@ defmodule Pleroma.Web.NodeInfoTest do
 
     assert result = json_response(conn, 200)
 
-    assert Pleroma.Config.get([Pleroma.User, :restricted_nicknames]) ==
+    assert Config.get([Pleroma.User, :restricted_nicknames]) ==
              result["metadata"]["restrictedNicknames"]
   end
 
@@ -65,10 +67,10 @@ defmodule Pleroma.Web.NodeInfoTest do
   end
 
   test "returns fieldsLimits field", %{conn: conn} do
-    Pleroma.Config.put([:instance, :max_account_fields], 10)
-    Pleroma.Config.put([:instance, :max_remote_account_fields], 15)
-    Pleroma.Config.put([:instance, :account_field_name_length], 255)
-    Pleroma.Config.put([:instance, :account_field_value_length], 2048)
+    Config.put([:instance, :max_account_fields], 10)
+    Config.put([:instance, :max_remote_account_fields], 15)
+    Config.put([:instance, :account_field_name_length], 255)
+    Config.put([:instance, :account_field_value_length], 2048)
 
     response =
       conn
@@ -82,8 +84,8 @@ defmodule Pleroma.Web.NodeInfoTest do
   end
 
   test "it returns the safe_dm_mentions feature if enabled", %{conn: conn} do
-    option = Pleroma.Config.get([:instance, :safe_dm_mentions])
-    Pleroma.Config.put([:instance, :safe_dm_mentions], true)
+    option = Config.get([:instance, :safe_dm_mentions])
+    Config.put([:instance, :safe_dm_mentions], true)
 
     response =
       conn
@@ -92,7 +94,7 @@ defmodule Pleroma.Web.NodeInfoTest do
 
     assert "safe_dm_mentions" in response["metadata"]["features"]
 
-    Pleroma.Config.put([:instance, :safe_dm_mentions], false)
+    Config.put([:instance, :safe_dm_mentions], false)
 
     response =
       conn
@@ -101,14 +103,14 @@ defmodule Pleroma.Web.NodeInfoTest do
 
     refute "safe_dm_mentions" in response["metadata"]["features"]
 
-    Pleroma.Config.put([:instance, :safe_dm_mentions], option)
+    Config.put([:instance, :safe_dm_mentions], option)
   end
 
   describe "`metadata/federation/enabled`" do
     setup do: clear_config([:instance, :federating])
 
     test "it shows if federation is enabled/disabled", %{conn: conn} do
-      Pleroma.Config.put([:instance, :federating], true)
+      Config.put([:instance, :federating], true)
 
       response =
         conn
@@ -117,7 +119,7 @@ defmodule Pleroma.Web.NodeInfoTest do
 
       assert response["metadata"]["federation"]["enabled"] == true
 
-      Pleroma.Config.put([:instance, :federating], false)
+      Config.put([:instance, :federating], false)
 
       response =
         conn
@@ -128,15 +130,39 @@ defmodule Pleroma.Web.NodeInfoTest do
     end
   end
 
+  test "it shows default features flags", %{conn: conn} do
+    response =
+      conn
+      |> get("/nodeinfo/2.1.json")
+      |> json_response(:ok)
+
+    default_features = [
+      "pleroma_api",
+      "mastodon_api",
+      "mastodon_api_streaming",
+      "polls",
+      "pleroma_explicit_addressing",
+      "shareable_emoji_packs",
+      "multifetch",
+      "pleroma_emoji_reactions",
+      "pleroma:api/v1/notifications:include_types_filter"
+    ]
+
+    assert MapSet.subset?(
+             MapSet.new(default_features),
+             MapSet.new(response["metadata"]["features"])
+           )
+  end
+
   test "it shows MRF transparency data if enabled", %{conn: conn} do
-    config = Pleroma.Config.get([:instance, :rewrite_policy])
-    Pleroma.Config.put([:instance, :rewrite_policy], [Pleroma.Web.ActivityPub.MRF.SimplePolicy])
+    config = Config.get([:instance, :rewrite_policy])
+    Config.put([:instance, :rewrite_policy], [Pleroma.Web.ActivityPub.MRF.SimplePolicy])
 
-    option = Pleroma.Config.get([:instance, :mrf_transparency])
-    Pleroma.Config.put([:instance, :mrf_transparency], true)
+    option = Config.get([:instance, :mrf_transparency])
+    Config.put([:instance, :mrf_transparency], true)
 
     simple_config = %{"reject" => ["example.com"]}
-    Pleroma.Config.put(:mrf_simple, simple_config)
+    Config.put(:mrf_simple, simple_config)
 
     response =
       conn
@@ -145,25 +171,25 @@ defmodule Pleroma.Web.NodeInfoTest do
 
     assert response["metadata"]["federation"]["mrf_simple"] == simple_config
 
-    Pleroma.Config.put([:instance, :rewrite_policy], config)
-    Pleroma.Config.put([:instance, :mrf_transparency], option)
-    Pleroma.Config.put(:mrf_simple, %{})
+    Config.put([:instance, :rewrite_policy], config)
+    Config.put([:instance, :mrf_transparency], option)
+    Config.put(:mrf_simple, %{})
   end
 
   test "it performs exclusions from MRF transparency data if configured", %{conn: conn} do
-    config = Pleroma.Config.get([:instance, :rewrite_policy])
-    Pleroma.Config.put([:instance, :rewrite_policy], [Pleroma.Web.ActivityPub.MRF.SimplePolicy])
+    config = Config.get([:instance, :rewrite_policy])
+    Config.put([:instance, :rewrite_policy], [Pleroma.Web.ActivityPub.MRF.SimplePolicy])
 
-    option = Pleroma.Config.get([:instance, :mrf_transparency])
-    Pleroma.Config.put([:instance, :mrf_transparency], true)
+    option = Config.get([:instance, :mrf_transparency])
+    Config.put([:instance, :mrf_transparency], true)
 
-    exclusions = Pleroma.Config.get([:instance, :mrf_transparency_exclusions])
-    Pleroma.Config.put([:instance, :mrf_transparency_exclusions], ["other.site"])
+    exclusions = Config.get([:instance, :mrf_transparency_exclusions])
+    Config.put([:instance, :mrf_transparency_exclusions], ["other.site"])
 
     simple_config = %{"reject" => ["example.com", "other.site"]}
     expected_config = %{"reject" => ["example.com"]}
 
-    Pleroma.Config.put(:mrf_simple, simple_config)
+    Config.put(:mrf_simple, simple_config)
 
     response =
       conn
@@ -173,9 +199,9 @@ defmodule Pleroma.Web.NodeInfoTest do
     assert response["metadata"]["federation"]["mrf_simple"] == expected_config
     assert response["metadata"]["federation"]["exclusions"] == true
 
-    Pleroma.Config.put([:instance, :rewrite_policy], config)
-    Pleroma.Config.put([:instance, :mrf_transparency], option)
-    Pleroma.Config.put([:instance, :mrf_transparency_exclusions], exclusions)
-    Pleroma.Config.put(:mrf_simple, %{})
+    Config.put([:instance, :rewrite_policy], config)
+    Config.put([:instance, :mrf_transparency], option)
+    Config.put([:instance, :mrf_transparency_exclusions], exclusions)
+    Config.put(:mrf_simple, %{})
   end
 end
diff --git a/test/web/ostatus/ostatus_controller_test.exs b/test/web/ostatus/ostatus_controller_test.exs
index 6787b414b..bb349cb19 100644
--- a/test/web/ostatus/ostatus_controller_test.exs
+++ b/test/web/ostatus/ostatus_controller_test.exs
@@ -136,7 +136,7 @@ defmodule Pleroma.Web.OStatus.OStatusControllerTest do
 
       user = insert(:user)
 
-      {:ok, like_activity, _} = CommonAPI.favorite(note_activity.id, user)
+      {:ok, like_activity} = CommonAPI.favorite(user, note_activity.id)
 
       assert like_activity.data["type"] == "Like"
 
diff --git a/test/web/pleroma_api/controllers/account_controller_test.exs b/test/web/pleroma_api/controllers/account_controller_test.exs
index 2aa87ac30..ae5334015 100644
--- a/test/web/pleroma_api/controllers/account_controller_test.exs
+++ b/test/web/pleroma_api/controllers/account_controller_test.exs
@@ -138,7 +138,7 @@ defmodule Pleroma.Web.PleromaAPI.AccountControllerTest do
       user: user
     } do
       [activity | _] = insert_pair(:note_activity)
-      CommonAPI.favorite(activity.id, user)
+      CommonAPI.favorite(user, activity.id)
 
       response =
         conn
@@ -155,7 +155,7 @@ defmodule Pleroma.Web.PleromaAPI.AccountControllerTest do
       user: user
     } do
       activity = insert(:note_activity)
-      CommonAPI.favorite(activity.id, user)
+      CommonAPI.favorite(user, activity.id)
 
       build_conn()
       |> get("/api/v1/pleroma/accounts/#{user.id}/favourites")
@@ -172,7 +172,7 @@ defmodule Pleroma.Web.PleromaAPI.AccountControllerTest do
           "visibility" => "direct"
         })
 
-      CommonAPI.favorite(direct.id, user)
+      CommonAPI.favorite(user, direct.id)
 
       for u <- [user, current_user] do
         response =
@@ -202,7 +202,7 @@ defmodule Pleroma.Web.PleromaAPI.AccountControllerTest do
           "visibility" => "direct"
         })
 
-      CommonAPI.favorite(direct.id, user)
+      CommonAPI.favorite(user, direct.id)
 
       response =
         conn
@@ -219,7 +219,7 @@ defmodule Pleroma.Web.PleromaAPI.AccountControllerTest do
       activities = insert_list(10, :note_activity)
 
       Enum.each(activities, fn activity ->
-        CommonAPI.favorite(activity.id, user)
+        CommonAPI.favorite(user, activity.id)
       end)
 
       third_activity = Enum.at(activities, 2)
@@ -245,7 +245,7 @@ defmodule Pleroma.Web.PleromaAPI.AccountControllerTest do
       7
       |> insert_list(:note_activity)
       |> Enum.each(fn activity ->
-        CommonAPI.favorite(activity.id, user)
+        CommonAPI.favorite(user, activity.id)
       end)
 
       response =
@@ -277,7 +277,7 @@ defmodule Pleroma.Web.PleromaAPI.AccountControllerTest do
     test "returns 403 error when user has hidden own favorites", %{conn: conn} do
       user = insert(:user, hide_favorites: true)
       activity = insert(:note_activity)
-      CommonAPI.favorite(activity.id, user)
+      CommonAPI.favorite(user, activity.id)
 
       conn = get(conn, "/api/v1/pleroma/accounts/#{user.id}/favourites")
 
@@ -287,7 +287,7 @@ defmodule Pleroma.Web.PleromaAPI.AccountControllerTest do
     test "hides favorites for new users by default", %{conn: conn} do
       user = insert(:user)
       activity = insert(:note_activity)
-      CommonAPI.favorite(activity.id, user)
+      CommonAPI.favorite(user, activity.id)
 
       assert user.hide_favorites
       conn = get(conn, "/api/v1/pleroma/accounts/#{user.id}/favourites")
diff --git a/test/web/pleroma_api/controllers/pleroma_api_controller_test.exs b/test/web/pleroma_api/controllers/pleroma_api_controller_test.exs
index 32250f06f..8bf7eb3be 100644
--- a/test/web/pleroma_api/controllers/pleroma_api_controller_test.exs
+++ b/test/web/pleroma_api/controllers/pleroma_api_controller_test.exs
@@ -169,6 +169,23 @@ defmodule Pleroma.Web.PleromaAPI.PleromaAPIControllerTest do
     id_one = activity.id
     id_two = activity_two.id
     assert [%{"id" => ^id_one}, %{"id" => ^id_two}] = result
+
+    {:ok, %{id: id_three}} =
+      CommonAPI.post(other_user, %{
+        "status" => "Bye!",
+        "in_reply_to_status_id" => activity.id,
+        "in_reply_to_conversation_id" => participation.id
+      })
+
+    assert [%{"id" => ^id_two}, %{"id" => ^id_three}] =
+             conn
+             |> get("/api/v1/pleroma/conversations/#{participation.id}/statuses?limit=2")
+             |> json_response(:ok)
+
+    assert [%{"id" => ^id_three}] =
+             conn
+             |> get("/api/v1/pleroma/conversations/#{participation.id}/statuses?min_id=#{id_two}")
+             |> json_response(:ok)
   end
 
   test "PATCH /api/v1/pleroma/conversations/:id" do
diff --git a/test/web/push/impl_test.exs b/test/web/push/impl_test.exs
index 9f931c941..9121d90e7 100644
--- a/test/web/push/impl_test.exs
+++ b/test/web/push/impl_test.exs
@@ -170,7 +170,7 @@ defmodule Pleroma.Web.Push.ImplTest do
           "<span>Lorem ipsum dolor sit amet</span>, consectetur :firefox: adipiscing elit. Fusce sagittis finibus turpis."
       })
 
-    {:ok, activity, _} = CommonAPI.favorite(activity.id, user)
+    {:ok, activity} = CommonAPI.favorite(user, activity.id)
     object = Object.normalize(activity)
 
     assert Impl.format_body(%{activity: activity}, user, object) == "@Bob has favorited your post"
diff --git a/test/web/streamer/streamer_test.exs b/test/web/streamer/streamer_test.exs
index 5b928629b..eb082b79f 100644
--- a/test/web/streamer/streamer_test.exs
+++ b/test/web/streamer/streamer_test.exs
@@ -64,9 +64,6 @@ defmodule Pleroma.Web.StreamerTest do
       blocked = insert(:user)
       {:ok, _user_relationship} = User.block(user, blocked)
 
-      {:ok, activity} = CommonAPI.post(user, %{"status" => ":("})
-      {:ok, notif, _} = CommonAPI.favorite(activity.id, blocked)
-
       task = Task.async(fn -> refute_receive {:text, _}, @streamer_timeout end)
 
       Streamer.add_socket(
@@ -74,6 +71,9 @@ defmodule Pleroma.Web.StreamerTest do
         %{transport_pid: task.pid, assigns: %{user: user}}
       )
 
+      {:ok, activity} = CommonAPI.post(user, %{"status" => ":("})
+      {:ok, notif} = CommonAPI.favorite(blocked, activity.id)
+
       Streamer.stream("user:notification", notif)
       Task.await(task)
     end
@@ -83,10 +83,6 @@ defmodule Pleroma.Web.StreamerTest do
     } do
       user2 = insert(:user)
 
-      {:ok, activity} = CommonAPI.post(user, %{"status" => "super hot take"})
-      {:ok, activity} = CommonAPI.add_mute(user, activity)
-      {:ok, notif, _} = CommonAPI.favorite(activity.id, user2)
-
       task = Task.async(fn -> refute_receive {:text, _}, @streamer_timeout end)
 
       Streamer.add_socket(
@@ -94,6 +90,10 @@ defmodule Pleroma.Web.StreamerTest do
         %{transport_pid: task.pid, assigns: %{user: user}}
       )
 
+      {:ok, activity} = CommonAPI.post(user, %{"status" => "super hot take"})
+      {:ok, activity} = CommonAPI.add_mute(user, activity)
+      {:ok, notif} = CommonAPI.favorite(user2, activity.id)
+
       Streamer.stream("user:notification", notif)
       Task.await(task)
     end
@@ -103,10 +103,6 @@ defmodule Pleroma.Web.StreamerTest do
     } do
       user2 = insert(:user, %{ap_id: "https://hecking-lewd-place.com/user/meanie"})
 
-      {:ok, user} = User.block_domain(user, "hecking-lewd-place.com")
-      {:ok, activity} = CommonAPI.post(user, %{"status" => "super hot take"})
-      {:ok, notif, _} = CommonAPI.favorite(activity.id, user2)
-
       task = Task.async(fn -> refute_receive {:text, _}, @streamer_timeout end)
 
       Streamer.add_socket(
@@ -114,6 +110,10 @@ defmodule Pleroma.Web.StreamerTest do
         %{transport_pid: task.pid, assigns: %{user: user}}
       )
 
+      {:ok, user} = User.block_domain(user, "hecking-lewd-place.com")
+      {:ok, activity} = CommonAPI.post(user, %{"status" => "super hot take"})
+      {:ok, notif} = CommonAPI.favorite(user2, activity.id)
+
       Streamer.stream("user:notification", notif)
       Task.await(task)
     end
@@ -209,7 +209,7 @@ defmodule Pleroma.Web.StreamerTest do
       Pleroma.Config.put([:instance, :skip_thread_containment], false)
       author = insert(:user)
       user = insert(:user)
-      User.follow(user, author, "accept")
+      User.follow(user, author, :follow_accept)
 
       activity =
         insert(:note_activity,
@@ -232,7 +232,7 @@ defmodule Pleroma.Web.StreamerTest do
       Pleroma.Config.put([:instance, :skip_thread_containment], true)
       author = insert(:user)
       user = insert(:user)
-      User.follow(user, author, "accept")
+      User.follow(user, author, :follow_accept)
 
       activity =
         insert(:note_activity,
@@ -255,7 +255,7 @@ defmodule Pleroma.Web.StreamerTest do
       Pleroma.Config.put([:instance, :skip_thread_containment], false)
       author = insert(:user)
       user = insert(:user, skip_thread_containment: true)
-      User.follow(user, author, "accept")
+      User.follow(user, author, :follow_accept)
 
       activity =
         insert(:note_activity,
@@ -476,7 +476,7 @@ defmodule Pleroma.Web.StreamerTest do
     CommonAPI.hide_reblogs(user1, user2)
 
     {:ok, create_activity} = CommonAPI.post(user3, %{"status" => "I'm kawen"})
-    {:ok, favorite_activity, _} = CommonAPI.favorite(create_activity.id, user2)
+    {:ok, favorite_activity} = CommonAPI.favorite(user2, create_activity.id)
 
     task =
       Task.async(fn ->
diff --git a/test/web/twitter_api/twitter_api_test.exs b/test/web/twitter_api/twitter_api_test.exs
index 92f9aa0f5..f6e13b661 100644
--- a/test/web/twitter_api/twitter_api_test.exs
+++ b/test/web/twitter_api/twitter_api_test.exs
@@ -109,7 +109,7 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPITest do
     {:ok, user2} = TwitterAPI.register_user(data2)
 
     expected_text =
-      ~s(<span class="h-card"><a data-user="#{user1.id}" class="u-url mention" href="#{
+      ~s(<span class="h-card"><a class="u-url mention" data-user="#{user1.id}" href="#{
         user1.ap_id
       }" rel="ugc">@<span>john</span></a></span> test)