Merge branch 'develop' of git.pleroma.social:pleroma/pleroma into feature/local-only-scope

2020-11-04 11:47:41 +01:00 · 2020-11-04 11:47:41 +01:00 · c7bcbfbc1d
parent 1cc8e94506 ba3f3a5a56
commit c7bcbfbc1d
50 changed files with 1118 additions and 32 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -15,6 +15,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Support for local-only statuses
 - Support pagination of blocks and mutes
 - App metrics: ability to restrict access to specified IP whitelist.
+- Account backup
 - Configuration: Add `:instance, autofollowing_nicknames` setting to provide a way to make accounts automatically follow new users that register on the local Pleroma instance.


@ -40,6 +41,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Pleroma API: Pagination for remote/local packs and emoji.
 - Admin API: (`GET /api/pleroma/admin/users`) added filters user by `unconfirmed` status
 - Admin API: (`GET /api/pleroma/admin/users`) added filters user by `actor_type`
+- Pleroma API: Add `idempotency_key` to the chat message entity that can be used for optimistic message sending.

 </details>

@ -58,6 +60,8 @@ switched to a new configuration mechanism, however it was not officially removed
 - Allow sending chat messages to yourself.
 - Fix remote users with a whitespace name.
 - OStatus / static FE endpoints: fixed inaccessibility for anonymous users on non-federating instances, switched to handling per `:restrict_unauthenticated` setting.
+- Mastodon API: Current user is now included in conversation if it's the only participant
+- Mastodon API: Fixed last_status.account being not filled with account data

 ## Unreleased (Patch)

--- a/config/config.exs
+++ b/config/config.exs
@ -551,6 +551,7 @@
  queues: [
    activity_expiration: 10,
    token_expiration: 5,
+    backup: 1,
    federator_incoming: 50,
    federator_outgoing: 50,
    ingestion_queue: 50,
@ -835,6 +836,11 @@

 config :pleroma, Pleroma.Web.Auth.Authenticator, Pleroma.Web.Auth.PleromaAuthenticator

+config :pleroma, Pleroma.User.Backup,
+  purge_after_days: 30,
+  limit_days: 7,
+  dir: nil
+
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
 import_config "#{Mix.env()}.exs"
--- a/config/description.exs
+++ b/config/description.exs
@ -2297,6 +2297,12 @@
            description: "Activity expiration queue",
            suggestions: [10]
          },
+          %{
+            key: :backup,
+            type: :integer,
+            description: "Backup queue",
+            suggestions: [1]
+          },
          %{
            key: :attachments_cleanup,
            type: :integer,
@ -3732,6 +3738,26 @@
      }
    ]
  },
+  %{
+    group: :pleroma,
+    key: Pleroma.User.Backup,
+    type: :group,
+    description: "Account Backup",
+    children: [
+      %{
+        key: :purge_after_days,
+        type: :integer,
+        description: "Remove backup achives after N days",
+        suggestions: [30]
+      },
+      %{
+        key: :limit_days,
+        type: :integer,
+        description: "Limit user to export not more often than once per N days",
+        suggestions: [7]
+      }
+    ]
+  },
  %{
    group: :prometheus,
    key: Pleroma.Web.Endpoint.MetricsExporter,
--- a/docs/API/chats.md
+++ b/docs/API/chats.md
@ -173,11 +173,14 @@ Returned data:
    "created_at": "2020-04-21T15:06:45.000Z",
    "emojis": [],
    "id": "12",
-    "unread": false
+    "unread": false,
+    "idempotency_key": "75442486-0874-440c-9db1-a7006c25a31f"
  }
 ]
 ```

+- idempotency_key: The copy of the `idempotency-key` HTTP request header that can be used for optimistic message sending. Included only during the first few minutes after the message creation.
+
 ### Posting a chat message

 Posting a chat message for given Chat id works like this:
--- a/docs/API/pleroma_api.md
+++ b/docs/API/pleroma_api.md
@ -615,3 +615,41 @@ Emoji reactions work a lot like favourites do. They make it possible to react to
  {"name": "😀", "count": 2, "me": true, "accounts": [{"id" => "xyz.."...}, {"id" => "zyx..."}]}
 ]
 ```
+
+## `POST /api/v1/pleroma/backups`
+### Create a user backup archive
+
+* Method: `POST`
+* Authentication: required
+* Params: none
+* Response: JSON
+* Example response:
+
+```json
+[{
+    "content_type": "application/zip",
+    "file_size": 0,
+    "inserted_at": "2020-09-10T16:18:03.000Z",
+    "processed": false,
+    "url": "https://example.com/media/backups/archive-foobar-20200910T161803-QUhx6VYDRQ2wfV0SdA2Pfj_2CLM_ATUlw-D5l5TJf4Q.zip"
+}]
+```
+
+## `GET /api/v1/pleroma/backups`
+### Lists user backups
+
+* Method: `GET`
+* Authentication: not required
+* Params: none
+* Response: JSON
+* Example response:
+
+```json
+[{
+    "content_type": "application/zip",
+    "file_size": 55457,
+    "inserted_at": "2020-09-10T16:18:03.000Z",
+    "processed": true,
+    "url": "https://example.com/media/backups/archive-foobar-20200910T161803-QUhx6VYDRQ2wfV0SdA2Pfj_2CLM_ATUlw-D5l5TJf4Q.zip"
+}]
+```
--- a/docs/configuration/cheatsheet.md
+++ b/docs/configuration/cheatsheet.md
@ -1078,6 +1078,20 @@ Control favicons for instances.

 * `enabled`: Allow/disallow displaying and getting instances favicons

+## Pleroma.User.Backup
+
+!!! note
+    Requires enabled email
+
+* `:purge_after_days` an integer, remove backup achives after N days.
+* `:limit_days` an integer, limit user to export not more often than once per N days.
+* `:dir` a string with a path to backup temporary directory or `nil` to let Pleroma choose temporary directory in the following order:
+    1. the directory named by the TMPDIR environment variable
+    2. the directory named by the TEMP environment variable
+    3. the directory named by the TMP environment variable
+    4. C:\TMP on Windows or /tmp on Unix-like operating systems
+    5. as a last resort, the current working directory
+
 ## Frontend management

 Frontends in Pleroma are swappable - you can specify which one to use here.
--- a/lib/pleroma/activity.ex
+++ b/lib/pleroma/activity.ex
@ -14,6 +14,7 @@ defmodule Pleroma.Activity do
  alias Pleroma.ReportNote
  alias Pleroma.ThreadMute
  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ActivityPub

  import Ecto.Changeset
  import Ecto.Query
@ -155,6 +156,18 @@ def get_bookmark(%Activity{} = activity, %User{} = user) do

  def get_bookmark(_, _), do: nil

+  def get_report(activity_id) do
+    opts = %{
+      type: "Flag",
+      skip_preload: true,
+      preload_report_notes: true
+    }
+
+    ActivityPub.fetch_activities_query([], opts)
+    |> where(id: ^activity_id)
+    |> Repo.one()
+  end
+
  def change(struct, params \\ %{}) do
    struct
    |> cast(params, [:data, :recipients])
--- a/lib/pleroma/application.ex
+++ b/lib/pleroma/application.ex
@ -168,7 +168,11 @@ defp cachex_children do
      build_cachex("web_resp", limit: 2500),
      build_cachex("emoji_packs", expiration: emoji_packs_expiration(), limit: 10),
      build_cachex("failed_proxy_url", limit: 2500),
-      build_cachex("banned_urls", default_ttl: :timer.hours(24 * 30), limit: 5_000)
+      build_cachex("banned_urls", default_ttl: :timer.hours(24 * 30), limit: 5_000),
+      build_cachex("chat_message_id_idempotency_key",
+        expiration: chat_message_id_idempotency_key_expiration(),
+        limit: 500_000
+      )
    ]
  end

@ -178,6 +182,9 @@ defp emoji_packs_expiration,
  defp idempotency_expiration,
    do: expiration(default: :timer.seconds(6 * 60 * 60), interval: :timer.seconds(60))

+  defp chat_message_id_idempotency_key_expiration,
+    do: expiration(default: :timer.minutes(2), interval: :timer.seconds(60))
+
  defp seconds_valid_interval,
    do: :timer.seconds(Config.get!([Pleroma.Captcha, :seconds_valid]))

--- a/lib/pleroma/captcha/kocaptcha.ex
+++ b/lib/pleroma/captcha/kocaptcha.ex
@ -10,7 +10,7 @@ defmodule Pleroma.Captcha.Kocaptcha do
  def new do
    endpoint = Pleroma.Config.get!([__MODULE__, :endpoint])

-    case Tesla.get(endpoint <> "/new") do
+    case Pleroma.HTTP.get(endpoint <> "/new") do
      {:error, _} ->
        %{error: :kocaptcha_service_unavailable}

--- a/lib/pleroma/emails/user_email.ex
+++ b/lib/pleroma/emails/user_email.ex
@ -189,4 +189,30 @@ def unsubscribe_url(user, notifications_type) do

    Router.Helpers.subscription_url(Endpoint, :unsubscribe, token)
  end
+
+  def backup_is_ready_email(backup, admin_user_id \\ nil) do
+    %{user: user} = Pleroma.Repo.preload(backup, :user)
+    download_url = Pleroma.Web.PleromaAPI.BackupView.download_url(backup)
+
+    html_body =
+      if is_nil(admin_user_id) do
+        """
+        <p>You requested a full backup of your Pleroma account. It's ready for download:</p>
+        <p><a href="#{download_url}">#{download_url}</a></p>
+        """
+      else
+        admin = Pleroma.Repo.get(User, admin_user_id)
+
+        """
+        <p>Admin @#{admin.nickname} requested a full backup of your Pleroma account. It's ready for download:</p>
+        <p><a href="#{download_url}">#{download_url}</a></p>
+        """
+      end
+
+    new()
+    |> to(recipient(user))
+    |> from(sender())
+    |> subject("Your account archive is ready")
+    |> html_body(html_body)
+  end
 end
--- a/lib/pleroma/emoji/pack.ex
+++ b/lib/pleroma/emoji/pack.ex
@ -594,7 +594,7 @@ defp fetch_pack_info(remote_pack, uri, name) do
  end

  defp download_archive(url, sha) do
-    with {:ok, %{body: archive}} <- Tesla.get(url) do
+    with {:ok, %{body: archive}} <- Pleroma.HTTP.get(url) do
      if Base.decode16!(sha) == :crypto.hash(:sha256, archive) do
        {:ok, archive}
      else
@ -617,7 +617,7 @@ defp fallback_sha_changed?(pack, data) do
  end

  defp update_sha_and_save_metadata(pack, data) do
-    with {:ok, %{body: zip}} <- Tesla.get(data[:"fallback-src"]),
+    with {:ok, %{body: zip}} <- Pleroma.HTTP.get(data[:"fallback-src"]),
         :ok <- validate_has_all_files(pack, zip) do
      fallback_sha = :sha256 |> :crypto.hash(zip) |> Base.encode16()

--- a/lib/pleroma/moderation_log.ex
+++ b/lib/pleroma/moderation_log.ex
@ -655,6 +655,16 @@ def get_log_entry_message(%ModerationLog{
    "@#{actor_nickname} deleted chat message ##{subject_id}"
  end

+  def get_log_entry_message(%ModerationLog{
+        data: %{
+          "actor" => %{"nickname" => actor_nickname},
+          "action" => "create_backup",
+          "subject" => %{"nickname" => user_nickname}
+        }
+      }) do
+    "@#{actor_nickname} requested account backup for @#{user_nickname}"
+  end
+
  defp nicknames_to_string(nicknames) do
    nicknames
    |> Enum.map(&"@#{&1}")
--- a/lib/pleroma/user/backup.ex
+++ b/lib/pleroma/user/backup.ex
@ -0,0 +1,258 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.User.Backup do
+  use Ecto.Schema
+
+  import Ecto.Changeset
+  import Ecto.Query
+  import Pleroma.Web.Gettext
+
+  require Pleroma.Constants
+
+  alias Pleroma.Activity
+  alias Pleroma.Bookmark
+  alias Pleroma.Repo
+  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.Transmogrifier
+  alias Pleroma.Web.ActivityPub.UserView
+  alias Pleroma.Workers.BackupWorker
+
+  schema "backups" do
+    field(:content_type, :string)
+    field(:file_name, :string)
+    field(:file_size, :integer, default: 0)
+    field(:processed, :boolean, default: false)
+
+    belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
+
+    timestamps()
+  end
+
+  def create(user, admin_id \\ nil) do
+    with :ok <- validate_email_enabled(),
+         :ok <- validate_user_email(user),
+         :ok <- validate_limit(user, admin_id),
+         {:ok, backup} <- user |> new() |> Repo.insert() do
+      BackupWorker.process(backup, admin_id)
+    end
+  end
+
+  def new(user) do
+    rand_str = :crypto.strong_rand_bytes(32) |> Base.url_encode64(padding: false)
+    datetime = Calendar.NaiveDateTime.Format.iso8601_basic(NaiveDateTime.utc_now())
+    name = "archive-#{user.nickname}-#{datetime}-#{rand_str}.zip"
+
+    %__MODULE__{
+      user_id: user.id,
+      content_type: "application/zip",
+      file_name: name
+    }
+  end
+
+  def delete(backup) do
+    uploader = Pleroma.Config.get([Pleroma.Upload, :uploader])
+
+    with :ok <- uploader.delete_file(Path.join("backups", backup.file_name)) do
+      Repo.delete(backup)
+    end
+  end
+
+  defp validate_limit(_user, admin_id) when is_binary(admin_id), do: :ok
+
+  defp validate_limit(user, nil) do
+    case get_last(user.id) do
+      %__MODULE__{inserted_at: inserted_at} ->
+        days = Pleroma.Config.get([__MODULE__, :limit_days])
+        diff = Timex.diff(NaiveDateTime.utc_now(), inserted_at, :days)
+
+        if diff > days do
+          :ok
+        else
+          {:error,
+           dngettext(
+             "errors",
+             "Last export was less than a day ago",
+             "Last export was less than %{days} days ago",
+             days,
+             days: days
+           )}
+        end
+
+      nil ->
+        :ok
+    end
+  end
+
+  defp validate_email_enabled do
+    if Pleroma.Config.get([Pleroma.Emails.Mailer, :enabled]) do
+      :ok
+    else
+      {:error, dgettext("errors", "Backups require enabled email")}
+    end
+  end
+
+  defp validate_user_email(%User{email: nil}) do
+    {:error, dgettext("errors", "Email is required")}
+  end
+
+  defp validate_user_email(%User{email: email}) when is_binary(email), do: :ok
+
+  def get_last(user_id) do
+    __MODULE__
+    |> where(user_id: ^user_id)
+    |> order_by(desc: :id)
+    |> limit(1)
+    |> Repo.one()
+  end
+
+  def list(%User{id: user_id}) do
+    __MODULE__
+    |> where(user_id: ^user_id)
+    |> order_by(desc: :id)
+    |> Repo.all()
+  end
+
+  def remove_outdated(%__MODULE__{id: latest_id, user_id: user_id}) do
+    __MODULE__
+    |> where(user_id: ^user_id)
+    |> where([b], b.id != ^latest_id)
+    |> Repo.all()
+    |> Enum.each(&BackupWorker.delete/1)
+  end
+
+  def get(id), do: Repo.get(__MODULE__, id)
+
+  def process(%__MODULE__{} = backup) do
+    with {:ok, zip_file} <- export(backup),
+         {:ok, %{size: size}} <- File.stat(zip_file),
+         {:ok, _upload} <- upload(backup, zip_file) do
+      backup
+      |> cast(%{file_size: size, processed: true}, [:file_size, :processed])
+      |> Repo.update()
+    end
+  end
+
+  @files ['actor.json', 'outbox.json', 'likes.json', 'bookmarks.json']
+  def export(%__MODULE__{} = backup) do
+    backup = Repo.preload(backup, :user)
+    name = String.trim_trailing(backup.file_name, ".zip")
+    dir = dir(name)
+
+    with :ok <- File.mkdir(dir),
+         :ok <- actor(dir, backup.user),
+         :ok <- statuses(dir, backup.user),
+         :ok <- likes(dir, backup.user),
+         :ok <- bookmarks(dir, backup.user),
+         {:ok, zip_path} <- :zip.create(String.to_charlist(dir <> ".zip"), @files, cwd: dir),
+         {:ok, _} <- File.rm_rf(dir) do
+      {:ok, to_string(zip_path)}
+    end
+  end
+
+  def dir(name) do
+    dir = Pleroma.Config.get([__MODULE__, :dir]) || System.tmp_dir!()
+    Path.join(dir, name)
+  end
+
+  def upload(%__MODULE__{} = backup, zip_path) do
+    uploader = Pleroma.Config.get([Pleroma.Upload, :uploader])
+
+    upload = %Pleroma.Upload{
+      name: backup.file_name,
+      tempfile: zip_path,
+      content_type: backup.content_type,
+      path: Path.join("backups", backup.file_name)
+    }
+
+    with {:ok, _} <- Pleroma.Uploaders.Uploader.put_file(uploader, upload),
+         :ok <- File.rm(zip_path) do
+      {:ok, upload}
+    end
+  end
+
+  defp actor(dir, user) do
+    with {:ok, json} <-
+           UserView.render("user.json", %{user: user})
+           |> Map.merge(%{"likes" => "likes.json", "bookmarks" => "bookmarks.json"})
+           |> Jason.encode() do
+      File.write(Path.join(dir, "actor.json"), json)
+    end
+  end
+
+  defp write_header(file, name) do
+    IO.write(
+      file,
+      """
+      {
+        "@context": "https://www.w3.org/ns/activitystreams",
+        "id": "#{name}.json",
+        "type": "OrderedCollection",
+        "orderedItems": [
+
+      """
+    )
+  end
+
+  defp write(query, dir, name, fun) do
+    path = Path.join(dir, "#{name}.json")
+
+    with {:ok, file} <- File.open(path, [:write, :utf8]),
+         :ok <- write_header(file, name) do
+      total =
+        query
+        |> Pleroma.Repo.chunk_stream(100)
+        |> Enum.reduce(0, fn i, acc ->
+          with {:ok, data} <- fun.(i),
+               {:ok, str} <- Jason.encode(data),
+               :ok <- IO.write(file, str <> ",\n") do
+            acc + 1
+          else
+            _ -> acc
+          end
+        end)
+
+      with :ok <- :file.pwrite(file, {:eof, -2}, "\n],\n  \"totalItems\": #{total}}") do
+        File.close(file)
+      end
+    end
+  end
+
+  defp bookmarks(dir, %{id: user_id} = _user) do
+    Bookmark
+    |> where(user_id: ^user_id)
+    |> join(:inner, [b], activity in assoc(b, :activity))
+    |> select([b, a], %{id: b.id, object: fragment("(?)->>'object'", a.data)})
+    |> write(dir, "bookmarks", fn a -> {:ok, a.object} end)
+  end
+
+  defp likes(dir, user) do
+    user.ap_id
+    |> Activity.Queries.by_actor()
+    |> Activity.Queries.by_type("Like")
+    |> select([like], %{id: like.id, object: fragment("(?)->>'object'", like.data)})
+    |> write(dir, "likes", fn a -> {:ok, a.object} end)
+  end
+
+  defp statuses(dir, user) do
+    opts =
+      %{}
+      |> Map.put(:type, ["Create", "Announce"])
+      |> Map.put(:actor_id, user.ap_id)
+
+    [
+      [Pleroma.Constants.as_public(), user.ap_id],
+      User.following(user),
+      Pleroma.List.memberships(user)
+    ]
+    |> Enum.concat()
+    |> ActivityPub.fetch_activities_query(opts)
+    |> write(dir, "outbox", fn a ->
+      with {:ok, activity} <- Transmogrifier.prepare_outgoing(a.data) do
+        {:ok, Map.delete(activity, "@context")}
+      end
+    end)
+  end
+end
--- a/lib/pleroma/web/activity_pub/side_effects.ex
+++ b/lib/pleroma/web/activity_pub/side_effects.ex
@ -187,7 +187,7 @@ def handle(%{data: %{"type" => "Create"}} = activity, meta) do
      {:ok, notifications} = Notification.create_notifications(activity, do_send: false)
      {:ok, _user} = ActivityPub.increase_note_count_if_public(user, object)

-      if in_reply_to = object.data["inReplyTo"] do
+      if in_reply_to = object.data["inReplyTo"] && object.data["type"] != "Answer" do
        Object.increase_replies_count(in_reply_to)
      end

@ -312,6 +312,12 @@ def handle_object_creation(%{"type" => "ChatMessage"} = object, meta) do
            {:ok, chat} = Chat.bump_or_create(user.id, other_user.ap_id)
            {:ok, cm_ref} = MessageReference.create(chat, object, user.ap_id != actor.ap_id)

+            Cachex.put(
+              :chat_message_id_idempotency_key_cache,
+              cm_ref.id,
+              meta[:idempotency_key]
+            )
+
            {
              ["user", "user:pleroma_chat"],
              {user, %{cm_ref | chat: chat, object: object}}
--- a/lib/pleroma/web/admin_api/controllers/admin_api_controller.ex
+++ b/lib/pleroma/web/admin_api/controllers/admin_api_controller.ex
@ -26,7 +26,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
  plug(
    OAuthScopesPlug,
    %{scopes: ["read:accounts"], admin: true}
-    when action in [:right_get, :show_user_credentials]
+    when action in [:right_get, :show_user_credentials, :create_backup]
  )

  plug(
@ -441,6 +441,15 @@ def stats(conn, params) do
    json(conn, %{"status_visibility" => counters})
  end

+  def create_backup(%{assigns: %{user: admin}} = conn, %{"nickname" => nickname}) do
+    with %User{} = user <- User.get_by_nickname(nickname),
+         {:ok, _} <- Pleroma.User.Backup.create(user, admin.id) do
+      ModerationLog.insert_log(%{actor: admin, subject: user, action: "create_backup"})
+
+      json(conn, "")
+    end
+  end
+
  defp page_params(params) do
    {
      fetch_integer_param(params, "page", 1),
--- a/lib/pleroma/web/admin_api/controllers/report_controller.ex
+++ b/lib/pleroma/web/admin_api/controllers/report_controller.ex
@ -38,7 +38,7 @@ def index(conn, params) do
  end

  def show(conn, %{id: id}) do
-    with %Activity{} = report <- Activity.get_by_id(id) do
+    with %Activity{} = report <- Activity.get_report(id) do
      render(conn, "show.json", Report.extract_report_info(report))
    else
      _ -> {:error, :not_found}
--- a/lib/pleroma/web/api_spec/operations/pleroma_backup_operation.ex
+++ b/lib/pleroma/web/api_spec/operations/pleroma_backup_operation.ex
@ -0,0 +1,79 @@
+# 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.PleromaBackupOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["Backups"],
+      summary: "List backups",
+      security: [%{"oAuth" => ["read:account"]}],
+      operationId: "PleromaAPI.BackupController.index",
+      responses: %{
+        200 =>
+          Operation.response(
+            "An array of backups",
+            "application/json",
+            %Schema{
+              type: :array,
+              items: backup()
+            }
+          ),
+        400 => Operation.response("Bad Request", "application/json", ApiError)
+      }
+    }
+  end
+
+  def create_operation do
+    %Operation{
+      tags: ["Backups"],
+      summary: "Create a backup",
+      security: [%{"oAuth" => ["read:account"]}],
+      operationId: "PleromaAPI.BackupController.create",
+      responses: %{
+        200 =>
+          Operation.response(
+            "An array of backups",
+            "application/json",
+            %Schema{
+              type: :array,
+              items: backup()
+            }
+          ),
+        400 => Operation.response("Bad Request", "application/json", ApiError)
+      }
+    }
+  end
+
+  defp backup do
+    %Schema{
+      title: "Backup",
+      description: "Response schema for a backup",
+      type: :object,
+      properties: %{
+        inserted_at: %Schema{type: :string, format: :"date-time"},
+        content_type: %Schema{type: :string},
+        file_name: %Schema{type: :string},
+        file_size: %Schema{type: :integer},
+        processed: %Schema{type: :boolean}
+      },
+      example: %{
+        "content_type" => "application/zip",
+        "file_name" =>
+          "https://cofe.fe:4000/media/backups/archive-foobar-20200908T164207-Yr7vuT5Wycv-sN3kSN2iJ0k-9pMo60j9qmvRCdDqIew.zip",
+        "file_size" => 4105,
+        "inserted_at" => "2020-09-08T16:42:07.000Z",
+        "processed" => true
+      }
+    }
+  end
+end
--- a/lib/pleroma/web/common_api.ex
+++ b/lib/pleroma/web/common_api.ex
@ -46,7 +46,8 @@ def post_chat_message(%User{} = user, %User{} = recipient, content, opts \\ [])
         {_, {:ok, %Activity{} = activity, _meta}} <-
           {:common_pipeline,
            Pipeline.common_pipeline(create_activity_data,
-              local: true
+              local: true,
+              idempotency_key: opts[:idempotency_key]
            )} do
      {:ok, activity}
    else
--- a/lib/pleroma/web/mastodon_api/views/conversation_view.ex
+++ b/lib/pleroma/web/mastodon_api/views/conversation_view.ex
@ -33,8 +33,15 @@ def render("participation.json", %{participation: participation, for: user}) do
      end

    activity = Activity.get_by_id_with_object(last_activity_id)
-    # Conversations return all users except the current user.
-    users = Enum.reject(participation.recipients, &(&1.id == user.id))
+
+    # Conversations return all users except the current user,
+    # except when the current user is the only participant
+    users =
+      if length(participation.recipients) > 1 do
+        Enum.reject(participation.recipients, &(&1.id == user.id))
+      else
+        participation.recipients
+      end

    %{
      id: participation.id |> to_string(),
@ -43,7 +50,8 @@ def render("participation.json", %{participation: participation, for: user}) do
      last_status:
        render(StatusView, "show.json",
          activity: activity,
-          direct_conversation_id: participation.id
+          direct_conversation_id: participation.id,
+          for: user
        )
    }
  end
--- a/lib/pleroma/web/pleroma_api/controllers/backup_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/backup_controller.ex
@ -0,0 +1,28 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.PleromaAPI.BackupController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.User.Backup
+  alias Pleroma.Web.Plugs.OAuthScopesPlug
+
+  action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
+  plug(OAuthScopesPlug, %{scopes: ["read:accounts"]} when action in [:index, :create])
+  plug(OpenApiSpex.Plug.CastAndValidate, render_error: Pleroma.Web.ApiSpec.RenderError)
+
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.PleromaBackupOperation
+
+  def index(%{assigns: %{user: user}} = conn, _params) do
+    backups = Backup.list(user)
+    render(conn, "index.json", backups: backups)
+  end
+
+  def create(%{assigns: %{user: user}} = conn, _params) do
+    with {:ok, _} <- Backup.create(user) do
+      backups = Backup.list(user)
+      render(conn, "index.json", backups: backups)
+    end
+  end
+end
--- a/lib/pleroma/web/pleroma_api/controllers/chat_controller.ex
+++ b/lib/pleroma/web/pleroma_api/controllers/chat_controller.ex
@ -80,7 +80,8 @@ def post_chat_message(
         %User{} = recipient <- User.get_cached_by_ap_id(chat.recipient),
         {:ok, activity} <-
           CommonAPI.post_chat_message(user, recipient, params[:content],
-             media_id: params[:media_id]
+             media_id: params[:media_id],
+             idempotency_key: idempotency_key(conn)
           ),
         message <- Object.normalize(activity, false),
         cm_ref <- MessageReference.for_chat_and_object(chat, message) do
@ -169,4 +170,11 @@ def show(%{assigns: %{user: user}} = conn, %{id: id}) do
      |> render("show.json", chat: chat)
    end
  end
+
+  defp idempotency_key(conn) do
+    case get_req_header(conn, "idempotency-key") do
+      [key] -> key
+      _ -> nil
+    end
+  end
 end
--- a/lib/pleroma/web/pleroma_api/views/backup_view.ex
+++ b/lib/pleroma/web/pleroma_api/views/backup_view.ex
@ -0,0 +1,28 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.PleromaAPI.BackupView do
+  use Pleroma.Web, :view
+
+  alias Pleroma.User.Backup
+  alias Pleroma.Web.CommonAPI.Utils
+
+  def render("show.json", %{backup: %Backup{} = backup}) do
+    %{
+      content_type: backup.content_type,
+      url: download_url(backup),
+      file_size: backup.file_size,
+      processed: backup.processed,
+      inserted_at: Utils.to_masto_date(backup.inserted_at)
+    }
+  end
+
+  def render("index.json", %{backups: backups}) do
+    render_many(backups, __MODULE__, "show.json")
+  end
+
+  def download_url(%Backup{file_name: file_name}) do
+    Pleroma.Web.Endpoint.url() <> "/media/backups/" <> file_name
+  end
+end
--- a/lib/pleroma/web/pleroma_api/views/chat/message_reference_view.ex
+++ b/lib/pleroma/web/pleroma_api/views/chat/message_reference_view.ex
@ -5,6 +5,7 @@
 defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceView do
  use Pleroma.Web, :view

+  alias Pleroma.Maps
  alias Pleroma.User
  alias Pleroma.Web.CommonAPI.Utils
  alias Pleroma.Web.MastodonAPI.StatusView
@ -37,6 +38,7 @@ def render(
          Pleroma.Web.RichMedia.Helpers.fetch_data_for_object(object)
        )
    }
+    |> put_idempotency_key()
  end

  def render("index.json", opts) do
@ -47,4 +49,13 @@ def render("index.json", opts) do
      Map.put(opts, :as, :chat_message_reference)
    )
  end
+
+  defp put_idempotency_key(data) do
+    with {:ok, idempotency_key} <- Cachex.get(:chat_message_id_idempotency_key_cache, data.id) do
+      data
+      |> Maps.put_if_present(:idempotency_key, idempotency_key)
+    else
+      _ -> data
+    end
+  end
 end
--- a/lib/pleroma/web/router.ex
+++ b/lib/pleroma/web/router.ex
@ -243,6 +243,8 @@ defmodule Pleroma.Web.Router do
    get("/chats/:id", ChatController, :show)
    get("/chats/:id/messages", ChatController, :messages)
    delete("/chats/:id/messages/:message_id", ChatController, :delete_message)
+
+    post("/backups", AdminAPIController, :create_backup)
  end

  scope "/api/pleroma/emoji", Pleroma.Web.PleromaAPI do
@ -373,6 +375,9 @@ defmodule Pleroma.Web.Router do
      put("/mascot", MascotController, :update)

      post("/scrobble", ScrobbleController, :create)
+
+      get("/backups", BackupController, :index)
+      post("/backups", BackupController, :create)
    end

    scope [] do
--- a/lib/pleroma/workers/backup_worker.ex
+++ b/lib/pleroma/workers/backup_worker.ex
@ -0,0 +1,54 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Workers.BackupWorker do
+  use Oban.Worker, queue: :backup, max_attempts: 1
+
+  alias Oban.Job
+  alias Pleroma.User.Backup
+
+  def process(backup, admin_user_id \\ nil) do
+    %{"op" => "process", "backup_id" => backup.id, "admin_user_id" => admin_user_id}
+    |> new()
+    |> Oban.insert()
+  end
+
+  def schedule_deletion(backup) do
+    days = Pleroma.Config.get([Backup, :purge_after_days])
+    time = 60 * 60 * 24 * days
+    scheduled_at = Calendar.NaiveDateTime.add!(backup.inserted_at, time)
+
+    %{"op" => "delete", "backup_id" => backup.id}
+    |> new(scheduled_at: scheduled_at)
+    |> Oban.insert()
+  end
+
+  def delete(backup) do
+    %{"op" => "delete", "backup_id" => backup.id}
+    |> new()
+    |> Oban.insert()
+  end
+
+  def perform(%Job{
+        args: %{"op" => "process", "backup_id" => backup_id, "admin_user_id" => admin_user_id}
+      }) do
+    with {:ok, %Backup{} = backup} <-
+           backup_id |> Backup.get() |> Backup.process(),
+         {:ok, _job} <- schedule_deletion(backup),
+         :ok <- Backup.remove_outdated(backup),
+         {:ok, _} <-
+           backup
+           |> Pleroma.Emails.UserEmail.backup_is_ready_email(admin_user_id)
+           |> Pleroma.Emails.Mailer.deliver() do
+      {:ok, backup}
+    end
+  end
+
+  def perform(%Job{args: %{"op" => "delete", "backup_id" => backup_id}}) do
+    case Backup.get(backup_id) do
+      %Backup{} = backup -> Backup.delete(backup)
+      nil -> :ok
+    end
+  end
+end
--- a/mix.exs
+++ b/mix.exs
@ -134,7 +134,7 @@ defp deps do
      {:cachex, "~> 3.2"},
      {:poison, "~> 3.0", override: true},
      {:tesla,
-       git: "https://github.com/teamon/tesla/",
+       git: "https://github.com/teamon/tesla.git",
       ref: "9f7261ca49f9f901ceb73b60219ad6f8a9f6aa30",
       override: true},
      {:castore, "~> 0.1"},
@ -196,7 +196,7 @@ defp deps do
       ref: "e0f16822d578866e186a0974d65ad58cddc1e2ab"},
      {:restarter, path: "./restarter"},
      {:majic,
-       git: "https://git.pleroma.social/pleroma/elixir-libraries/majic", branch: "develop"},
+       git: "https://git.pleroma.social/pleroma/elixir-libraries/majic.git", branch: "develop"},
      {:open_api_spex,
       git: "https://git.pleroma.social/pleroma/elixir-libraries/open_api_spex.git",
       ref: "f296ac0924ba3cf79c7a588c4c252889df4c2edd"},
--- a/mix.lock
+++ b/mix.lock
@ -66,7 +66,7 @@
  "jumper": {:hex, :jumper, "1.0.1", "3c00542ef1a83532b72269fab9f0f0c82bf23a35e27d278bfd9ed0865cecabff", [:mix], [], "hexpm", "318c59078ac220e966d27af3646026db9b5a5e6703cb2aa3e26bcfaba65b7433"},
  "libring": {:hex, :libring, "1.4.0", "41246ba2f3fbc76b3971f6bce83119dfec1eee17e977a48d8a9cfaaf58c2a8d6", [:mix], [], "hexpm"},
  "linkify": {:hex, :linkify, "0.2.0", "2518bbbea21d2caa9d372424e1ad845b640c6630e2d016f1bd1f518f9ebcca28", [:mix], [], "hexpm", "b8ca8a68b79e30b7938d6c996085f3db14939f29538a59ca5101988bb7f917f6"},
-  "majic": {:git, "https://git.pleroma.social/pleroma/elixir-libraries/majic", "4c692e544b28d1f5e543fb8a44be090f8cd96f80", [branch: "develop"]},
+  "majic": {:git, "https://git.pleroma.social/pleroma/elixir-libraries/majic.git", "4c692e544b28d1f5e543fb8a44be090f8cd96f80", [branch: "develop"]},
  "makeup": {:hex, :makeup, "1.0.3", "e339e2f766d12e7260e6672dd4047405963c5ec99661abdc432e6ec67d29ef95", [:mix], [{:nimble_parsec, "~> 0.5", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "2e9b4996d11832947731f7608fed7ad2f9443011b3b479ae288011265cdd3dad"},
  "makeup_elixir": {:hex, :makeup_elixir, "0.14.1", "4f0e96847c63c17841d42c08107405a005a2680eb9c7ccadfd757bd31dabccfb", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "f2438b1a80eaec9ede832b5c41cd4f373b38fd7aa33e3b22d9db79e640cbde11"},
  "meck": {:hex, :meck, "0.8.13", "ffedb39f99b0b99703b8601c6f17c7f76313ee12de6b646e671e3188401f7866", [:rebar3], [], "hexpm", "d34f013c156db51ad57cc556891b9720e6a1c1df5fe2e15af999c84d6cebeb1a"},
@ -115,7 +115,7 @@
  "swoosh": {:hex, :swoosh, "1.0.6", "6765e334c67dacabe721f0d701c7e5a6f06e4595c90df6f91e73ebd54d555833", [:mix], [{:cowboy, "~> 1.1 or ~> 2.4", [hex: :cowboy, repo: "hexpm", optional: true]}, {:gen_smtp, "~> 0.13 or ~> 1.0", [hex: :gen_smtp, repo: "hexpm", optional: true]}, {:hackney, "~> 1.9", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mail, "~> 0.2", [hex: :mail, repo: "hexpm", optional: true]}, {:mime, "~> 1.1", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_cowboy, ">= 1.0.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}], "hexpm", "7c50ef78e4acfd1cbd4907dc1fa87b5540675a6be9dc979d04890f49d7ec1830"},
  "syslog": {:hex, :syslog, "1.1.0", "6419a232bea84f07b56dc575225007ffe34d9fdc91abe6f1b2f254fd71d8efc2", [:rebar3], [], "hexpm", "4c6a41373c7e20587be33ef841d3de6f3beba08519809329ecc4d27b15b659e1"},
  "telemetry": {:hex, :telemetry, "0.4.2", "2808c992455e08d6177322f14d3bdb6b625fbcfd233a73505870d8738a2f4599", [:rebar3], [], "hexpm", "2d1419bd9dda6a206d7b5852179511722e2b18812310d304620c7bd92a13fcef"},
-  "tesla": {:git, "https://github.com/teamon/tesla/", "9f7261ca49f9f901ceb73b60219ad6f8a9f6aa30", [ref: "9f7261ca49f9f901ceb73b60219ad6f8a9f6aa30"]},
+  "tesla": {:git, "https://github.com/teamon/tesla.git", "9f7261ca49f9f901ceb73b60219ad6f8a9f6aa30", [ref: "9f7261ca49f9f901ceb73b60219ad6f8a9f6aa30"]},
  "timex": {:hex, :timex, "3.6.2", "845cdeb6119e2fef10751c0b247b6c59d86d78554c83f78db612e3290f819bc2", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.10", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 0.1.8 or ~> 0.5 or ~> 1.0.0", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm", "26030b46199d02a590be61c2394b37ea25a3664c02fafbeca0b24c972025d47a"},
  "trailing_format_plug": {:hex, :trailing_format_plug, "0.0.7", "64b877f912cf7273bed03379936df39894149e35137ac9509117e59866e10e45", [:mix], [{:plug, "> 0.12.0", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "bd4fde4c15f3e993a999e019d64347489b91b7a9096af68b2bdadd192afa693f"},
  "tzdata": {:hex, :tzdata, "1.0.4", "a3baa4709ea8dba552dca165af6ae97c624a2d6ac14bd265165eaa8e8af94af6", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "b02637db3df1fd66dd2d3c4f194a81633d0e4b44308d36c1b2fdfd1e4e6f169b"},
--- a/priv/repo/migrations/20200831192323_create_backups.exs
+++ b/priv/repo/migrations/20200831192323_create_backups.exs
@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.CreateBackups do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists table(:backups) do
+      add(:user_id, references(:users, type: :uuid, on_delete: :delete_all))
+      add(:file_name, :string, null: false)
+      add(:content_type, :string, null: false)
+      add(:processed, :boolean, null: false, default: false)
+      add(:file_size, :bigint)
+
+      timestamps()
+    end
+
+    create_if_not_exists(index(:backups, [:user_id]))
+  end
+end
--- a/priv/static/favicon.png
+++ b/priv/static/favicon.png
--- a/test/pleroma/user/backup_test.exs
+++ b/test/pleroma/user/backup_test.exs
@ -0,0 +1,244 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.User.BackupTest do
+  use Oban.Testing, repo: Pleroma.Repo
+  use Pleroma.DataCase
+
+  import Mock
+  import Pleroma.Factory
+  import Swoosh.TestAssertions
+
+  alias Pleroma.Bookmark
+  alias Pleroma.Tests.ObanHelpers
+  alias Pleroma.User.Backup
+  alias Pleroma.Web.CommonAPI
+  alias Pleroma.Workers.BackupWorker
+
+  setup do
+    clear_config([Pleroma.Upload, :uploader])
+    clear_config([Backup, :limit_days])
+    clear_config([Pleroma.Emails.Mailer, :enabled], true)
+  end
+
+  test "it requries enabled email" do
+    Pleroma.Config.put([Pleroma.Emails.Mailer, :enabled], false)
+    user = insert(:user)
+    assert {:error, "Backups require enabled email"} == Backup.create(user)
+  end
+
+  test "it requries user's email" do
+    user = insert(:user, %{email: nil})
+    assert {:error, "Email is required"} == Backup.create(user)
+  end
+
+  test "it creates a backup record and an Oban job" do
+    %{id: user_id} = user = insert(:user)
+    assert {:ok, %Oban.Job{args: args}} = Backup.create(user)
+    assert_enqueued(worker: BackupWorker, args: args)
+
+    backup = Backup.get(args["backup_id"])
+    assert %Backup{user_id: ^user_id, processed: false, file_size: 0} = backup
+  end
+
+  test "it return an error if the export limit is over" do
+    %{id: user_id} = user = insert(:user)
+    limit_days = Pleroma.Config.get([Backup, :limit_days])
+    assert {:ok, %Oban.Job{args: args}} = Backup.create(user)
+    backup = Backup.get(args["backup_id"])
+    assert %Backup{user_id: ^user_id, processed: false, file_size: 0} = backup
+
+    assert Backup.create(user) == {:error, "Last export was less than #{limit_days} days ago"}
+  end
+
+  test "it process a backup record" do
+    Pleroma.Config.put([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
+    %{id: user_id} = user = insert(:user)
+
+    assert {:ok, %Oban.Job{args: %{"backup_id" => backup_id} = args}} = Backup.create(user)
+    assert {:ok, backup} = perform_job(BackupWorker, args)
+    assert backup.file_size > 0
+    assert %Backup{id: ^backup_id, processed: true, user_id: ^user_id} = backup
+
+    delete_job_args = %{"op" => "delete", "backup_id" => backup_id}
+
+    assert_enqueued(worker: BackupWorker, args: delete_job_args)
+    assert {:ok, backup} = perform_job(BackupWorker, delete_job_args)
+    refute Backup.get(backup_id)
+
+    email = Pleroma.Emails.UserEmail.backup_is_ready_email(backup)
+
+    assert_email_sent(
+      to: {user.name, user.email},
+      html_body: email.html_body
+    )
+  end
+
+  test "it removes outdated backups after creating a fresh one" do
+    Pleroma.Config.put([Backup, :limit_days], -1)
+    Pleroma.Config.put([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
+    user = insert(:user)
+
+    assert {:ok, job1} = Backup.create(user)
+
+    assert {:ok, %Backup{}} = ObanHelpers.perform(job1)
+    assert {:ok, job2} = Backup.create(user)
+    assert Pleroma.Repo.aggregate(Backup, :count) == 2
+    assert {:ok, backup2} = ObanHelpers.perform(job2)
+
+    ObanHelpers.perform_all()
+
+    assert [^backup2] = Pleroma.Repo.all(Backup)
+  end
+
+  test "it creates a zip archive with user data" do
+    user = insert(:user, %{nickname: "cofe", name: "Cofe", ap_id: "http://cofe.io/users/cofe"})
+
+    {:ok, %{object: %{data: %{"id" => id1}}} = status1} =
+      CommonAPI.post(user, %{status: "status1"})
+
+    {:ok, %{object: %{data: %{"id" => id2}}} = status2} =
+      CommonAPI.post(user, %{status: "status2"})
+
+    {:ok, %{object: %{data: %{"id" => id3}}} = status3} =
+      CommonAPI.post(user, %{status: "status3"})
+
+    CommonAPI.favorite(user, status1.id)
+    CommonAPI.favorite(user, status2.id)
+
+    Bookmark.create(user.id, status2.id)
+    Bookmark.create(user.id, status3.id)
+
+    assert {:ok, backup} = user |> Backup.new() |> Repo.insert()
+    assert {:ok, path} = Backup.export(backup)
+    assert {:ok, zipfile} = :zip.zip_open(String.to_charlist(path), [:memory])
+    assert {:ok, {'actor.json', json}} = :zip.zip_get('actor.json', zipfile)
+
+    assert %{
+             "@context" => [
+               "https://www.w3.org/ns/activitystreams",
+               "http://localhost:4001/schemas/litepub-0.1.jsonld",
+               %{"@language" => "und"}
+             ],
+             "bookmarks" => "bookmarks.json",
+             "followers" => "http://cofe.io/users/cofe/followers",
+             "following" => "http://cofe.io/users/cofe/following",
+             "id" => "http://cofe.io/users/cofe",
+             "inbox" => "http://cofe.io/users/cofe/inbox",
+             "likes" => "likes.json",
+             "name" => "Cofe",
+             "outbox" => "http://cofe.io/users/cofe/outbox",
+             "preferredUsername" => "cofe",
+             "publicKey" => %{
+               "id" => "http://cofe.io/users/cofe#main-key",
+               "owner" => "http://cofe.io/users/cofe"
+             },
+             "type" => "Person",
+             "url" => "http://cofe.io/users/cofe"
+           } = Jason.decode!(json)
+
+    assert {:ok, {'outbox.json', json}} = :zip.zip_get('outbox.json', zipfile)
+
+    assert %{
+             "@context" => "https://www.w3.org/ns/activitystreams",
+             "id" => "outbox.json",
+             "orderedItems" => [
+               %{
+                 "object" => %{
+                   "actor" => "http://cofe.io/users/cofe",
+                   "content" => "status1",
+                   "type" => "Note"
+                 },
+                 "type" => "Create"
+               },
+               %{
+                 "object" => %{
+                   "actor" => "http://cofe.io/users/cofe",
+                   "content" => "status2"
+                 }
+               },
+               %{
+                 "actor" => "http://cofe.io/users/cofe",
+                 "object" => %{
+                   "content" => "status3"
+                 }
+               }
+             ],
+             "totalItems" => 3,
+             "type" => "OrderedCollection"
+           } = Jason.decode!(json)
+
+    assert {:ok, {'likes.json', json}} = :zip.zip_get('likes.json', zipfile)
+
+    assert %{
+             "@context" => "https://www.w3.org/ns/activitystreams",
+             "id" => "likes.json",
+             "orderedItems" => [^id1, ^id2],
+             "totalItems" => 2,
+             "type" => "OrderedCollection"
+           } = Jason.decode!(json)
+
+    assert {:ok, {'bookmarks.json', json}} = :zip.zip_get('bookmarks.json', zipfile)
+
+    assert %{
+             "@context" => "https://www.w3.org/ns/activitystreams",
+             "id" => "bookmarks.json",
+             "orderedItems" => [^id2, ^id3],
+             "totalItems" => 2,
+             "type" => "OrderedCollection"
+           } = Jason.decode!(json)
+
+    :zip.zip_close(zipfile)
+    File.rm!(path)
+  end
+
+  describe "it uploads and deletes a backup archive" do
+    setup do
+      clear_config(Pleroma.Uploaders.S3,
+        bucket: "test_bucket",
+        public_endpoint: "https://s3.amazonaws.com"
+      )
+
+      clear_config([Pleroma.Upload, :uploader])
+
+      user = insert(:user, %{nickname: "cofe", name: "Cofe", ap_id: "http://cofe.io/users/cofe"})
+
+      {:ok, status1} = CommonAPI.post(user, %{status: "status1"})
+      {:ok, status2} = CommonAPI.post(user, %{status: "status2"})
+      {:ok, status3} = CommonAPI.post(user, %{status: "status3"})
+      CommonAPI.favorite(user, status1.id)
+      CommonAPI.favorite(user, status2.id)
+      Bookmark.create(user.id, status2.id)
+      Bookmark.create(user.id, status3.id)
+
+      assert {:ok, backup} = user |> Backup.new() |> Repo.insert()
+      assert {:ok, path} = Backup.export(backup)
+
+      [path: path, backup: backup]
+    end
+
+    test "S3", %{path: path, backup: backup} do
+      Pleroma.Config.put([Pleroma.Upload, :uploader], Pleroma.Uploaders.S3)
+
+      with_mock ExAws,
+        request: fn
+          %{http_method: :put} -> {:ok, :ok}
+          %{http_method: :delete} -> {:ok, %{status_code: 204}}
+        end do
+        assert {:ok, %Pleroma.Upload{}} = Backup.upload(backup, path)
+        assert {:ok, _backup} = Backup.delete(backup)
+      end
+
+      with_mock ExAws, request: fn %{http_method: :delete} -> {:ok, %{status_code: 204}} end do
+      end
+    end
+
+    test "Local", %{path: path, backup: backup} do
+      Pleroma.Config.put([Pleroma.Upload, :uploader], Pleroma.Uploaders.Local)
+
+      assert {:ok, %Pleroma.Upload{}} = Backup.upload(backup, path)
+      assert {:ok, _backup} = Backup.delete(backup)
+    end
+  end
+end
--- a/test/pleroma/web/activity_pub/transmogrifier/answer_handling_test.exs
+++ b/test/pleroma/web/activity_pub/transmogrifier/answer_handling_test.exs
@ -27,6 +27,7 @@ test "incoming, rewrites Note to Answer and increments vote counters" do
      })

    object = Object.normalize(activity)
+    assert object.data["repliesCount"] == nil

    data =
      File.read!("test/fixtures/mastodon-vote.json")
@ -41,7 +42,7 @@ test "incoming, rewrites Note to Answer and increments vote counters" do
    assert answer_object.data["inReplyTo"] == object.data["id"]

    new_object = Object.get_by_ap_id(object.data["id"])
-    assert new_object.data["replies_count"] == object.data["replies_count"]
+    assert new_object.data["repliesCount"] == nil

    assert Enum.any?(
             new_object.data["oneOf"],
--- a/test/pleroma/web/admin_api/controllers/admin_api_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/admin_api_controller_test.exs
@ -11,7 +11,6 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
  import Swoosh.TestAssertions

  alias Pleroma.Activity
-  alias Pleroma.Config
  alias Pleroma.MFA
  alias Pleroma.ModerationLog
  alias Pleroma.Repo
@ -978,6 +977,73 @@ test "by instance", %{conn: conn} do
               response["status_visibility"]
    end
  end
+
+  describe "/api/pleroma/backups" do
+    test "it creates a backup", %{conn: conn} do
+      admin = %{id: admin_id, nickname: admin_nickname} = insert(:user, is_admin: true)
+      token = insert(:oauth_admin_token, user: admin)
+      user = %{id: user_id, nickname: user_nickname} = insert(:user)
+
+      assert "" ==
+               conn
+               |> assign(:user, admin)
+               |> assign(:token, token)
+               |> post("/api/pleroma/admin/backups", %{nickname: user.nickname})
+               |> json_response(200)
+
+      assert [backup] = Repo.all(Pleroma.User.Backup)
+
+      ObanHelpers.perform_all()
+
+      email = Pleroma.Emails.UserEmail.backup_is_ready_email(backup, admin.id)
+
+      assert String.contains?(email.html_body, "Admin @#{admin.nickname} requested a full backup")
+      assert_email_sent(to: {user.name, user.email}, html_body: email.html_body)
+
+      log_message = "@#{admin_nickname} requested account backup for @#{user_nickname}"
+
+      assert [
+               %{
+                 data: %{
+                   "action" => "create_backup",
+                   "actor" => %{
+                     "id" => ^admin_id,
+                     "nickname" => ^admin_nickname
+                   },
+                   "message" => ^log_message,
+                   "subject" => %{
+                     "id" => ^user_id,
+                     "nickname" => ^user_nickname
+                   }
+                 }
+               }
+             ] = Pleroma.ModerationLog |> Repo.all()
+    end
+
+    test "it doesn't limit admins", %{conn: conn} do
+      admin = insert(:user, is_admin: true)
+      token = insert(:oauth_admin_token, user: admin)
+      user = insert(:user)
+
+      assert "" ==
+               conn
+               |> assign(:user, admin)
+               |> assign(:token, token)
+               |> post("/api/pleroma/admin/backups", %{nickname: user.nickname})
+               |> json_response(200)
+
+      assert [_backup] = Repo.all(Pleroma.User.Backup)
+
+      assert "" ==
+               conn
+               |> assign(:user, admin)
+               |> assign(:token, token)
+               |> post("/api/pleroma/admin/backups", %{nickname: user.nickname})
+               |> json_response(200)
+
+      assert Repo.aggregate(Pleroma.User.Backup, :count) == 2
+    end
+  end
 end

 # Needed for testing
--- a/test/pleroma/web/admin_api/controllers/chat_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/chat_controller_test.exs
@ -9,7 +9,6 @@ defmodule Pleroma.Web.AdminAPI.ChatControllerTest do

  alias Pleroma.Chat
  alias Pleroma.Chat.MessageReference
-  alias Pleroma.Config
  alias Pleroma.ModerationLog
  alias Pleroma.Object
  alias Pleroma.Repo
--- a/test/pleroma/web/admin_api/controllers/instance_document_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/instance_document_controller_test.exs
@ -5,7 +5,6 @@
 defmodule Pleroma.Web.AdminAPI.InstanceDocumentControllerTest do
  use Pleroma.Web.ConnCase, async: true
  import Pleroma.Factory
-  alias Pleroma.Config

  @dir "test/tmp/instance_static"
  @default_instance_panel ~s(<p>Welcome to <a href="https://pleroma.social" target="_blank">Pleroma!</a></p>)
--- a/test/pleroma/web/admin_api/controllers/o_auth_app_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/o_auth_app_controller_test.exs
@ -8,7 +8,6 @@ defmodule Pleroma.Web.AdminAPI.OAuthAppControllerTest do

  import Pleroma.Factory

-  alias Pleroma.Config
  alias Pleroma.Web

  setup do
--- a/test/pleroma/web/admin_api/controllers/relay_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/relay_controller_test.exs
@ -7,7 +7,6 @@ defmodule Pleroma.Web.AdminAPI.RelayControllerTest do

  import Pleroma.Factory

-  alias Pleroma.Config
  alias Pleroma.ModerationLog
  alias Pleroma.Repo
  alias Pleroma.User
--- a/test/pleroma/web/admin_api/controllers/report_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/report_controller_test.exs
@ -8,7 +8,6 @@ defmodule Pleroma.Web.AdminAPI.ReportControllerTest do
  import Pleroma.Factory

  alias Pleroma.Activity
-  alias Pleroma.Config
  alias Pleroma.ModerationLog
  alias Pleroma.Repo
  alias Pleroma.ReportNote
@ -38,12 +37,21 @@ test "returns report by its id", %{conn: conn} do
          status_ids: [activity.id]
        })

+      conn
+      |> put_req_header("content-type", "application/json")
+      |> post("/api/pleroma/admin/reports/#{report_id}/notes", %{
+        content: "this is an admin note"
+      })
+
      response =
        conn
        |> get("/api/pleroma/admin/reports/#{report_id}")
        |> json_response_and_validate_schema(:ok)

      assert response["id"] == report_id
+
+      [notes] = response["notes"]
+      assert notes["content"] == "this is an admin note"
    end

    test "returns 404 when report id is invalid", %{conn: conn} do
--- a/test/pleroma/web/admin_api/controllers/status_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/status_controller_test.exs
@ -8,7 +8,6 @@ defmodule Pleroma.Web.AdminAPI.StatusControllerTest do
  import Pleroma.Factory

  alias Pleroma.Activity
-  alias Pleroma.Config
  alias Pleroma.ModerationLog
  alias Pleroma.Repo
  alias Pleroma.User
--- a/test/pleroma/web/admin_api/controllers/user_controller_test.exs
+++ b/test/pleroma/web/admin_api/controllers/user_controller_test.exs
@ -9,7 +9,6 @@ defmodule Pleroma.Web.AdminAPI.UserControllerTest do
  import Mock
  import Pleroma.Factory

-  alias Pleroma.Config
  alias Pleroma.HTML
  alias Pleroma.ModerationLog
  alias Pleroma.Repo
--- a/test/pleroma/web/mastodon_api/controllers/conversation_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/conversation_controller_test.exs
@ -55,14 +55,35 @@ test "returns correct conversations", %{

      account_ids = Enum.map(res_accounts, & &1["id"])
      assert length(res_accounts) == 2
+      assert user_one.id not in account_ids
      assert user_two.id in account_ids
      assert user_three.id in account_ids
      assert is_binary(res_id)
      assert unread == false
      assert res_last_status["id"] == direct.id
+      assert res_last_status["account"]["id"] == user_one.id
      assert Participation.unread_count(user_one) == 0
    end

+    test "includes the user if the user is the only participant", %{
+      user: user_one,
+      conn: conn
+    } do
+      {:ok, _direct} = create_direct_message(user_one, [])
+
+      res_conn = get(conn, "/api/v1/conversations")
+
+      assert response = json_response_and_validate_schema(res_conn, 200)
+
+      assert [
+               %{
+                 "accounts" => [account]
+               }
+             ] = response
+
+      assert user_one.id == account["id"]
+    end
+
    test "observes limit params", %{
      user: user_one,
      user_two: user_two,
--- a/test/pleroma/web/mastodon_api/controllers/timeline_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/timeline_controller_test.exs
@ -8,7 +8,6 @@ defmodule Pleroma.Web.MastodonAPI.TimelineControllerTest do
  import Pleroma.Factory
  import Tesla.Mock

-  alias Pleroma.Config
  alias Pleroma.User
  alias Pleroma.Web.CommonAPI

--- a/test/pleroma/web/mastodon_api/views/conversation_view_test.exs
+++ b/test/pleroma/web/mastodon_api/views/conversation_view_test.exs
@ -36,9 +36,11 @@ test "represents a Mastodon Conversation entity" do

    assert conversation.id == participation.id |> to_string()
    assert conversation.last_status.id == activity.id
+    assert conversation.last_status.account.id == user.id

    assert [account] = conversation.accounts
    assert account.id == other_user.id
+
    assert conversation.last_status.pleroma.direct_conversation_id == participation.id
  end
 end
--- a/test/pleroma/web/pleroma_api/controllers/backup_controller_test.exs
+++ b/test/pleroma/web/pleroma_api/controllers/backup_controller_test.exs
@ -0,0 +1,85 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.PleromaAPI.BackupControllerTest do
+  use Pleroma.Web.ConnCase
+
+  alias Pleroma.User.Backup
+  alias Pleroma.Web.PleromaAPI.BackupView
+
+  setup do
+    clear_config([Pleroma.Upload, :uploader])
+    clear_config([Backup, :limit_days])
+    oauth_access(["read:accounts"])
+  end
+
+  test "GET /api/v1/pleroma/backups", %{user: user, conn: conn} do
+    assert {:ok, %Oban.Job{args: %{"backup_id" => backup_id}}} = Backup.create(user)
+
+    backup = Backup.get(backup_id)
+
+    response =
+      conn
+      |> get("/api/v1/pleroma/backups")
+      |> json_response_and_validate_schema(:ok)
+
+    assert [
+             %{
+               "content_type" => "application/zip",
+               "url" => url,
+               "file_size" => 0,
+               "processed" => false,
+               "inserted_at" => _
+             }
+           ] = response
+
+    assert url == BackupView.download_url(backup)
+
+    Pleroma.Tests.ObanHelpers.perform_all()
+
+    assert [
+             %{
+               "url" => ^url,
+               "processed" => true
+             }
+           ] =
+             conn
+             |> get("/api/v1/pleroma/backups")
+             |> json_response_and_validate_schema(:ok)
+  end
+
+  test "POST /api/v1/pleroma/backups", %{user: _user, conn: conn} do
+    assert [
+             %{
+               "content_type" => "application/zip",
+               "url" => url,
+               "file_size" => 0,
+               "processed" => false,
+               "inserted_at" => _
+             }
+           ] =
+             conn
+             |> post("/api/v1/pleroma/backups")
+             |> json_response_and_validate_schema(:ok)
+
+    Pleroma.Tests.ObanHelpers.perform_all()
+
+    assert [
+             %{
+               "url" => ^url,
+               "processed" => true
+             }
+           ] =
+             conn
+             |> get("/api/v1/pleroma/backups")
+             |> json_response_and_validate_schema(:ok)
+
+    days = Pleroma.Config.get([Backup, :limit_days])
+
+    assert %{"error" => "Last export was less than #{days} days ago"} ==
+             conn
+             |> post("/api/v1/pleroma/backups")
+             |> json_response_and_validate_schema(400)
+  end
+end
--- a/test/pleroma/web/pleroma_api/controllers/chat_controller_test.exs
+++ b/test/pleroma/web/pleroma_api/controllers/chat_controller_test.exs
@ -82,11 +82,13 @@ test "it posts a message to the chat", %{conn: conn, user: user} do
      result =
        conn
        |> put_req_header("content-type", "application/json")
+        |> put_req_header("idempotency-key", "123")
        |> post("/api/v1/pleroma/chats/#{chat.id}/messages", %{"content" => "Hallo!!"})
        |> json_response_and_validate_schema(200)

      assert result["content"] == "Hallo!!"
      assert result["chat_id"] == chat.id |> to_string()
+      assert result["idempotency_key"] == "123"
    end

    test "it fails if there is no content", %{conn: conn, user: user} do
--- a/test/pleroma/web/pleroma_api/controllers/user_import_controller_test.exs
+++ b/test/pleroma/web/pleroma_api/controllers/user_import_controller_test.exs
@ -6,7 +6,6 @@ defmodule Pleroma.Web.PleromaAPI.UserImportControllerTest do
  use Pleroma.Web.ConnCase
  use Oban.Testing, repo: Pleroma.Repo

-  alias Pleroma.Config
  alias Pleroma.Tests.ObanHelpers

  import Pleroma.Factory
--- a/test/pleroma/web/pleroma_api/views/chat_message_reference_view_test.exs
+++ b/test/pleroma/web/pleroma_api/views/chat_message_reference_view_test.exs
@ -25,7 +25,9 @@ test "it displays a chat message" do
    }

    {:ok, upload} = ActivityPub.upload(file, actor: user.ap_id)
-    {:ok, activity} = CommonAPI.post_chat_message(user, recipient, "kippis :firefox:")
+
+    {:ok, activity} =
+      CommonAPI.post_chat_message(user, recipient, "kippis :firefox:", idempotency_key: "123")

    chat = Chat.get(user.id, recipient.ap_id)

@ -42,6 +44,7 @@ test "it displays a chat message" do
    assert chat_message[:created_at]
    assert chat_message[:unread] == false
    assert match?([%{shortcode: "firefox"}], chat_message[:emojis])
+    assert chat_message[:idempotency_key] == "123"

    clear_config([:rich_media, :enabled], true)

--- a/test/pleroma/web/plugs/http_security_plug_test.exs
+++ b/test/pleroma/web/plugs/http_security_plug_test.exs
@ -5,7 +5,6 @@
 defmodule Pleroma.Web.Plugs.HTTPSecurityPlugTest do
  use Pleroma.Web.ConnCase

-  alias Pleroma.Config
  alias Plug.Conn

  describe "http security enabled" do
--- a/test/pleroma/web/streamer_test.exs
+++ b/test/pleroma/web/streamer_test.exs
@ -255,7 +255,9 @@ test "it sends chat messages to the 'user:pleroma_chat' stream", %{
    } do
      other_user = insert(:user)

-      {:ok, create_activity} = CommonAPI.post_chat_message(other_user, user, "hey cirno")
+      {:ok, create_activity} =
+        CommonAPI.post_chat_message(other_user, user, "hey cirno", idempotency_key: "123")
+
      object = Object.normalize(create_activity, false)
      chat = Chat.get(user.id, other_user.ap_id)
      cm_ref = MessageReference.for_chat_and_object(chat, object)
--- a/test/pleroma/web/twitter_api/remote_follow_controller_test.exs
+++ b/test/pleroma/web/twitter_api/remote_follow_controller_test.exs
@ -5,7 +5,6 @@
 defmodule Pleroma.Web.TwitterAPI.RemoteFollowControllerTest do
  use Pleroma.Web.ConnCase

-  alias Pleroma.Config
  alias Pleroma.MFA
  alias Pleroma.MFA.TOTP
  alias Pleroma.User
--- a/test/support/oban_helpers.ex
+++ b/test/support/oban_helpers.ex
@ -7,6 +7,8 @@ defmodule Pleroma.Tests.ObanHelpers do
  Oban test helpers.
  """

+  require Ecto.Query
+
  alias Pleroma.Repo

  def wipe_all do
@ -15,6 +17,7 @@ def wipe_all do

  def perform_all do
    Oban.Job
+    |> Ecto.Query.where(state: "available")
    |> Repo.all()
    |> perform()
  end