Merge remote-tracking branch 'remotes/origin/develop' into auth-improvements

CHANGELOG.md

@@ -14,6 +14,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Experimental websocket-based federation between Pleroma instances.
 - 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.
 
 ### Changed
@@ -29,6 +30,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Users with the `discoverable` field set to false will not show up in searches.
 - Minimum lifetime for ephmeral activities changed to 10 minutes and made configurable (`:min_lifetime` option).
 - Introduced optional dependencies on `ffmpeg`, `ImageMagick`, `exiftool` software packages. Please refer to `docs/installation/optional/media_graphics_packages.md`.
+- Polls now always return a `voters_count`, even if they are single-choice
 
 <details>
   <summary>API Changes</summary>
@@ -38,6 +40,7 @@ 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>
 
@@ -56,6 +59,8 @@ 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)
 

config/config.exs

@@ -551,6 +551,7 @@ config :pleroma, Oban,
   queues: [
     activity_expiration: 10,
     token_expiration: 5,
+    backup: 1,
     federator_incoming: 50,
     federator_outgoing: 50,
     ingestion_queue: 50,
@@ -835,6 +836,11 @@ config :floki, :html_parser, Floki.HTMLParser.FastHtml
 
 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"

config/description.exs

@@ -2297,6 +2297,12 @@ config :pleroma, :config_description, [
             description: "Activity expiration queue",
             suggestions: [10]
           },
+          %{
+            key: :backup,
+            type: :integer,
+            description: "Backup queue",
+            suggestions: [1]
+          },
           %{
             key: :attachments_cleanup,
             type: :integer,
@@ -3732,6 +3738,26 @@ config :pleroma, :config_description, [
       }
     ]
   },
+  %{
+    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,

docs/API/chats.md

@@ -116,6 +116,10 @@ The modified chat message
 This will return a list of chats that you have been involved in, sorted by their
 last update (so new chats will be at the top).
 
+Parameters:
+
+- with_muted: Include chats from muted users (boolean).
+
 Returned data:
 
 ```json
@@ -173,11 +177,14 @@ 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:

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"
+}]
+```

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.

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
@@ -153,6 +154,18 @@ defmodule Pleroma.Activity 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])

lib/pleroma/application.ex

@@ -168,7 +168,11 @@ defmodule Pleroma.Application 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 @@ defmodule Pleroma.Application do
   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]))
 

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}
 

lib/pleroma/emails/user_email.ex

@@ -189,4 +189,30 @@ defmodule Pleroma.Emails.UserEmail 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

lib/pleroma/emoji/pack.ex

@@ -594,7 +594,7 @@ defmodule Pleroma.Emoji.Pack 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 @@ defmodule Pleroma.Emoji.Pack 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()
 

lib/pleroma/moderation_log.ex

@@ -655,6 +655,16 @@ defmodule Pleroma.ModerationLog do
     "@#{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}")

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

lib/pleroma/web/activity_pub/side_effects.ex

@@ -187,7 +187,7 @@ defmodule Pleroma.Web.ActivityPub.SideEffects 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 @@ defmodule Pleroma.Web.ActivityPub.SideEffects 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}}

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 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController 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),

lib/pleroma/web/admin_api/controllers/report_controller.ex

@@ -38,7 +38,7 @@ defmodule Pleroma.Web.AdminAPI.ReportController 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}

lib/pleroma/web/api_spec/operations/chat_operation.ex

@@ -6,6 +6,7 @@ defmodule Pleroma.Web.ApiSpec.ChatOperation do
   alias OpenApiSpex.Operation
   alias OpenApiSpex.Schema
   alias Pleroma.Web.ApiSpec.Schemas.ApiError
+  alias Pleroma.Web.ApiSpec.Schemas.BooleanLike
   alias Pleroma.Web.ApiSpec.Schemas.Chat
   alias Pleroma.Web.ApiSpec.Schemas.ChatMessage
 
@@ -132,7 +133,10 @@ defmodule Pleroma.Web.ApiSpec.ChatOperation do
       tags: ["chat"],
       summary: "Get a list of chats that you participated in",
       operationId: "ChatController.index",
-      parameters: pagination_params(),
+      parameters: [
+        Operation.parameter(:with_muted, :query, BooleanLike, "Include chats from muted users")
+        | pagination_params()
+      ],
       responses: %{
         200 => Operation.response("The chats of the user", "application/json", chats_response())
       },

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

lib/pleroma/web/api_spec/operations/timeline_operation.ex

@@ -159,7 +159,7 @@ defmodule Pleroma.Web.ApiSpec.TimelineOperation do
   end
 
   defp with_muted_param do
-    Operation.parameter(:with_muted, :query, BooleanLike, "Includeactivities by muted users")
+    Operation.parameter(:with_muted, :query, BooleanLike, "Include activities by muted users")
   end
 
   defp exclude_visibilities_param do

lib/pleroma/web/api_spec/schemas/poll.ex

@@ -28,8 +28,11 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Poll do
       },
       votes_count: %Schema{
         type: :integer,
-        nullable: true,
-        description: "How many votes have been received. Number, or null if `multiple` is false."
+        description: "How many votes have been received. Number."
+      },
+      voters_count: %Schema{
+        type: :integer,
+        description: "How many unique accounts have voted. Number."
       },
       voted: %Schema{
         type: :boolean,
@@ -61,7 +64,7 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Poll do
       expired: true,
       multiple: false,
       votes_count: 10,
-      voters_count: nil,
+      voters_count: 10,
       voted: true,
       own_votes: [
         1

lib/pleroma/web/common_api.ex

@@ -45,7 +45,8 @@ defmodule Pleroma.Web.CommonAPI do
          {_, {: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

lib/pleroma/web/mastodon_api/views/conversation_view.ex

@@ -33,8 +33,15 @@ defmodule Pleroma.Web.MastodonAPI.ConversationView 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 @@ defmodule Pleroma.Web.MastodonAPI.ConversationView do
       last_status:
         render(StatusView, "show.json",
           activity: activity,
-          direct_conversation_id: participation.id
+          direct_conversation_id: participation.id,
+          for: user
         )
     }
   end

lib/pleroma/web/mastodon_api/views/poll_view.ex

@@ -19,7 +19,7 @@ defmodule Pleroma.Web.MastodonAPI.PollView do
       expired: expired,
       multiple: multiple,
       votes_count: votes_count,
-      voters_count: (multiple || nil) && voters_count(object),
+      voters_count: voters_count(object),
       options: options,
       voted: voted?(params),
       emojis: Pleroma.Web.MastodonAPI.StatusView.build_emojis(object.data["emoji"])

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

lib/pleroma/web/pleroma_api/controllers/chat_controller.ex

@@ -15,7 +15,6 @@ defmodule Pleroma.Web.PleromaAPI.ChatController do
   alias Pleroma.User
   alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.PleromaAPI.Chat.MessageReferenceView
-  alias Pleroma.Web.PleromaAPI.ChatView
   alias Pleroma.Web.Plugs.OAuthScopesPlug
 
   import Ecto.Query
@@ -80,7 +79,8 @@ defmodule Pleroma.Web.PleromaAPI.ChatController do
          %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
@@ -120,9 +120,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatController do
       ) do
     with {:ok, chat} <- Chat.get_by_user_and_id(user, id),
          {_n, _} <- MessageReference.set_all_seen_for_chat(chat, last_read_id) do
-      conn
-      |> put_view(ChatView)
-      |> render("show.json", chat: chat)
+      render(conn, "show.json", chat: chat)
     end
   end
 
@@ -140,33 +138,37 @@ defmodule Pleroma.Web.PleromaAPI.ChatController do
     end
   end
 
-  def index(%{assigns: %{user: %{id: user_id} = user}} = conn, _params) do
-    blocked_ap_ids = User.blocked_users_ap_ids(user)
+  def index(%{assigns: %{user: %{id: user_id} = user}} = conn, params) do
+    exclude_users =
+      User.blocked_users_ap_ids(user) ++
+        if params[:with_muted], do: [], else: User.muted_users_ap_ids(user)
 
     chats =
-      Chat.for_user_query(user_id)
-      |> where([c], c.recipient not in ^blocked_ap_ids)
+      user_id
+      |> Chat.for_user_query()
+      |> where([c], c.recipient not in ^exclude_users)
       |> Repo.all()
 
-    conn
-    |> put_view(ChatView)
-    |> render("index.json", chats: chats)
+    render(conn, "index.json", chats: chats)
   end
 
   def create(%{assigns: %{user: user}} = conn, %{id: id}) do
     with %User{ap_id: recipient} <- User.get_cached_by_id(id),
          {:ok, %Chat{} = chat} <- Chat.get_or_create(user.id, recipient) do
-      conn
-      |> put_view(ChatView)
-      |> render("show.json", chat: chat)
+      render(conn, "show.json", chat: chat)
     end
   end
 
   def show(%{assigns: %{user: user}} = conn, %{id: id}) do
     with {:ok, chat} <- Chat.get_by_user_and_id(user, id) do
-      conn
-      |> put_view(ChatView)
-      |> render("show.json", chat: chat)
+      render(conn, "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

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

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 @@ defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceView do
           Pleroma.Web.RichMedia.Helpers.fetch_data_for_object(object)
         )
     }
+    |> put_idempotency_key()
   end
 
   def render("index.json", opts) do
@@ -47,4 +49,13 @@ defmodule Pleroma.Web.PleromaAPI.Chat.MessageReferenceView 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

lib/pleroma/web/router.ex

@@ -242,6 +242,8 @@ 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
@@ -372,6 +374,9 @@ defmodule Pleroma.Web.Router do
       put("/mascot", MascotController, :update)
 
       post("/scrobble", ScrobbleController, :create)
+
+      get("/backups", BackupController, :index)
+      post("/backups", BackupController, :create)
     end
 
     scope [] do

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

mix.exs

@@ -134,7 +134,7 @@ defmodule Pleroma.Mixfile 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 @@ defmodule Pleroma.Mixfile 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"},

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"},

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

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

test/pleroma/web/activity_pub/transmogrifier/answer_handling_test.exs

@@ -27,6 +27,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier.AnswerHandlingTest do
       })
 
     object = Object.normalize(activity)
+    assert object.data["repliesCount"] == nil
 
     data =
       File.read!("test/fixtures/mastodon-vote.json")
@@ -41,7 +42,7 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier.AnswerHandlingTest 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"],

test/pleroma/web/admin_api/controllers/admin_api_controller_test.exs

@@ -977,6 +977,73 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest 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

test/pleroma/web/admin_api/controllers/report_controller_test.exs

@@ -37,12 +37,21 @@ defmodule Pleroma.Web.AdminAPI.ReportControllerTest 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

test/pleroma/web/mastodon_api/controllers/conversation_controller_test.exs

@@ -55,14 +55,35 @@ defmodule Pleroma.Web.MastodonAPI.ConversationControllerTest do
 
       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,

test/pleroma/web/mastodon_api/views/conversation_view_test.exs

@@ -36,9 +36,11 @@ defmodule Pleroma.Web.MastodonAPI.ConversationViewTest 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

test/pleroma/web/mastodon_api/views/poll_view_test.exs

@@ -44,7 +44,7 @@ defmodule Pleroma.Web.MastodonAPI.PollViewTest do
       ],
       voted: false,
       votes_count: 0,
-      voters_count: nil
+      voters_count: 0
     }
 
     result = PollView.render("show.json", %{object: object})

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

test/pleroma/web/pleroma_api/controllers/chat_controller_test.exs

@@ -82,11 +82,13 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest 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
@@ -341,6 +343,35 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
       assert length(result) == 0
     end
 
+    test "it does not return chats with users you muted", %{conn: conn, user: user} do
+      recipient = insert(:user)
+
+      {:ok, _} = Chat.get_or_create(user.id, recipient.ap_id)
+
+      result =
+        conn
+        |> get("/api/v1/pleroma/chats")
+        |> json_response_and_validate_schema(200)
+
+      assert length(result) == 1
+
+      User.mute(user, recipient)
+
+      result =
+        conn
+        |> get("/api/v1/pleroma/chats")
+        |> json_response_and_validate_schema(200)
+
+      assert length(result) == 0
+
+      result =
+        conn
+        |> get("/api/v1/pleroma/chats?with_muted=true")
+        |> json_response_and_validate_schema(200)
+
+      assert length(result) == 1
+    end
+
     test "it returns all chats", %{conn: conn, user: user} do
       Enum.each(1..30, fn _ ->
         recipient = insert(:user)

test/pleroma/web/pleroma_api/views/chat_message_reference_view_test.exs

@@ -25,7 +25,9 @@ defmodule Pleroma.Web.PleromaAPI.ChatMessageReferenceViewTest 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 @@ defmodule Pleroma.Web.PleromaAPI.ChatMessageReferenceViewTest 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)
 

test/pleroma/web/streamer_test.exs

@@ -255,7 +255,9 @@ defmodule Pleroma.Web.StreamerTest do
     } 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)

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