Merge branch 'develop' of git.pleroma.social:pleroma/pleroma into feature/undo-validator-reduced

CHANGELOG.md

@@ -30,6 +30,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Mastodon API: Added `/api/v1/notifications/:id/dismiss` endpoint.
 - Mastodon API: Add support for filtering replies in public and home timelines
 - Admin API: endpoints for create/update/delete OAuth Apps.
+- Admin API: endpoint for status view.
 </details>
 
 ### Fixed
@@ -37,6 +38,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - **Breaking**: SimplePolicy `:reject` and `:accept` allow deletions again
 - Fix follower/blocks import when nicknames starts with @
 - Filtering of push notifications on activities from blocked domains
+- Resolving Peertube accounts with Webfinger
 
 ## [unreleased-patch]
 ### Security
@@ -47,6 +49,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Logger configuration through AdminFE
 - HTTP Basic Authentication permissions issue
 - ObjectAgePolicy didn't filter out old messages
+- Transmogrifier: Keep object sensitive settings for outgoing representation (AP C2S)
 
 ### Added
 - NodeInfo: ObjectAgePolicy settings to the `federation` list.

config/config.exs

@@ -238,7 +238,18 @@
   account_field_value_length: 2048,
   external_user_synchronization: true,
   extended_nickname_format: true,
-  cleanup_attachments: false
+  cleanup_attachments: false,
+  multi_factor_authentication: [
+    totp: [
+      # digits 6 or 8
+      digits: 6,
+      period: 30
+    ],
+    backup_codes: [
+      number: 5,
+      length: 16
+    ]
+  ]
 
 config :pleroma, :extensions, output_relationships_in_statuses_by_default: true
 
@@ -653,6 +664,8 @@
   profiles: %{local: false, remote: false},
   activities: %{local: false, remote: false}
 
+config :pleroma, Pleroma.Web.ApiSpec.CastAndValidate, strict: false
+
 # 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

@@ -919,6 +919,62 @@
         key: :external_user_synchronization,
         type: :boolean,
         description: "Enabling following/followers counters synchronization for external users"
+      },
+      %{
+        key: :multi_factor_authentication,
+        type: :keyword,
+        description: "Multi-factor authentication settings",
+        suggestions: [
+          [
+            totp: [digits: 6, period: 30],
+            backup_codes: [number: 5, length: 16]
+          ]
+        ],
+        children: [
+          %{
+            key: :totp,
+            type: :keyword,
+            description: "TOTP settings",
+            suggestions: [digits: 6, period: 30],
+            children: [
+              %{
+                key: :digits,
+                type: :integer,
+                suggestions: [6],
+                description:
+                  "Determines the length of a one-time pass-code, in characters. Defaults to 6 characters."
+              },
+              %{
+                key: :period,
+                type: :integer,
+                suggestions: [30],
+                description:
+                  "a period for which the TOTP code will be valid, in seconds. Defaults to 30 seconds."
+              }
+            ]
+          },
+          %{
+            key: :backup_codes,
+            type: :keyword,
+            description: "MFA backup codes settings",
+            suggestions: [number: 5, length: 16],
+            children: [
+              %{
+                key: :number,
+                type: :integer,
+                suggestions: [5],
+                description: "number of backup codes to generate."
+              },
+              %{
+                key: :length,
+                type: :integer,
+                suggestions: [16],
+                description:
+                  "Determines the length of backup one-time pass-codes, in characters. Defaults to 16 characters."
+              }
+            ]
+          }
+        ]
       }
     ]
   },
@@ -3195,5 +3251,19 @@
         ]
       }
     ]
+  },
+  %{
+    group: :pleroma,
+    key: Pleroma.Web.ApiSpec.CastAndValidate,
+    type: :group,
+    children: [
+      %{
+        key: :strict,
+        type: :boolean,
+        description:
+          "Enables strict input validation (useful in development, not recommended in production)",
+        suggestions: [false]
+      }
+    ]
   }
 ]

config/dev.exs

@@ -52,6 +52,8 @@
   hostname: "localhost",
   pool_size: 10
 
+config :pleroma, Pleroma.Web.ApiSpec.CastAndValidate, strict: true
+
 if File.exists?("./config/dev.secret.exs") do
   import_config "dev.secret.exs"
 else

config/test.exs

@@ -56,6 +56,19 @@
   ignore_hosts: [],
   ignore_tld: ["local", "localdomain", "lan"]
 
+config :pleroma, :instance,
+  multi_factor_authentication: [
+    totp: [
+      # digits 6 or 8
+      digits: 6,
+      period: 30
+    ],
+    backup_codes: [
+      number: 2,
+      length: 6
+    ]
+  ]
+
 config :web_push_encryption, :vapid_details,
   subject: "mailto:administrator@example.com",
   public_key:
@@ -96,6 +109,8 @@
 
 config :pleroma, Pleroma.Plugs.RemoteIp, enabled: false
 
+config :pleroma, Pleroma.Web.ApiSpec.CastAndValidate, strict: true
+
 if File.exists?("./config/test.secret.exs") do
   import_config "test.secret.exs"
 else

docs/API/admin_api.md

@@ -409,6 +409,7 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
 
 ### Get a password reset token for a given nickname
 
+
 - Params: none
 - Response:
 
@@ -427,6 +428,14 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
   - `nicknames`
 - Response: none (code `204`)
 
+## PUT `/api/pleroma/admin/users/disable_mfa`
+
+### Disable mfa for user's account.
+
+- Params:
+  - `nickname`
+- Response: User’s nickname
+
 ## `GET /api/pleroma/admin/users/:nickname/credentials`
 
 ### Get the user's email, password, display and settings-related fields
@@ -755,6 +764,17 @@ Note: Available `:permission_group` is currently moderator and admin. 404 is ret
     - 400 Bad Request `"Invalid parameters"` when `status` is missing
   - On success: `204`, empty response
 
+## `GET /api/pleroma/admin/statuses/:id`
+
+### Show status by id
+
+- Params:
+  - `id`: required, status id
+- Response:
+  - On failure:
+    - 404 Not Found `"Not Found"`
+  - On success: JSON, Mastodon Status entity
+
 ## `PUT /api/pleroma/admin/statuses/:id`
 
 ### Change the scope of an individual reported status

docs/API/pleroma_api.md

@@ -70,7 +70,49 @@ Request parameters can be passed via [query strings](https://en.wikipedia.org/wi
 * Response: JSON. Returns `{"status": "success"}` if the account was successfully disabled, `{"error": "[error message]"}` otherwise
 * Example response: `{"error": "Invalid password."}`
 
-## `/api/pleroma/admin/`…
+## `/api/pleroma/accounts/mfa`
+#### Gets current MFA settings
+* method: `GET`
+* Authentication: required
+* OAuth scope: `read:security`
+* Response: JSON. Returns `{"enabled": "false", "totp": false }`
+
+## `/api/pleroma/accounts/mfa/setup/totp`
+#### Pre-setup the MFA/TOTP method
+* method: `GET`
+* Authentication: required
+* OAuth scope: `write:security`
+* Response: JSON. Returns `{"key": [secret_key], "provisioning_uri": "[qr code uri]"  }` when successful, otherwise returns HTTP 422 `{"error": "error_msg"}`
+
+## `/api/pleroma/accounts/mfa/confirm/totp`
+#### Confirms & enables MFA/TOTP support for user account.
+* method: `POST`
+* Authentication: required
+* OAuth scope: `write:security`
+* Params:
+    * `password`: user's password
+    * `code`: token from TOTP App
+* Response: JSON. Returns `{}` if the enable was successful, HTTP 422 `{"error": "[error message]"}` otherwise
+
+
+## `/api/pleroma/accounts/mfa/totp`
+####  Disables MFA/TOTP method for user account.
+* method: `DELETE`
+* Authentication: required
+* OAuth scope: `write:security`
+* Params:
+    * `password`: user's password
+* Response: JSON. Returns `{}` if the disable was successful, HTTP 422 `{"error": "[error message]"}` otherwise
+* Example response: `{"error": "Invalid password."}`
+
+## `/api/pleroma/accounts/mfa/backup_codes`
+####  Generstes backup codes MFA for user account.
+* method: `GET`
+* Authentication: required
+* OAuth scope: `write:security`
+* Response: JSON. Returns `{"codes": codes}`when successful, otherwise HTTP 422 `{"error": "[error message]"}`
+
+## `/api/pleroma/admin/`
 See [Admin-API](admin_api.md)
 
 ## `/api/v1/pleroma/notifications/read`

docs/configuration/cheatsheet.md

@@ -8,6 +8,10 @@ For from source installations Pleroma configuration works by first importing the
 
 To add configuration to your config file, you can copy it from the base config. The latest version of it can be viewed [here](https://git.pleroma.social/pleroma/pleroma/blob/develop/config/config.exs). You can also use this file if you don't know how an option is supposed to be formatted.
 
+## :chat
+
+* `enabled` - Enables the backend chat. Defaults to `true`.
+
 ## :instance
 * `name`: The instance’s name.
 * `email`: Email used to reach an Administrator/Moderator of the instance.
@@ -903,12 +907,18 @@ config :auto_linker,
 
 * `runtime_dir`: A path to custom Elixir modules (such as MRF policies).
 
-
 ## :configurable_from_database
 
 Boolean, enables/disables in-database configuration. Read [Transfering the config to/from the database](../administration/CLI_tasks/config.md) for more information.
 
 
+### Multi-factor authentication -  :two_factor_authentication
+* `totp` - a list containing TOTP configuration
+  - `digits` - Determines the length of a one-time pass-code in characters. Defaults to 6 characters.
+  - `period` - a period for which the TOTP code will be valid in seconds. Defaults to 30 seconds.
+* `backup_codes` - a list containing backup codes configuration
+  - `number` - number of backup codes to generate.
+  - `length` - backup code length. Defaults to 16 characters.
 
 ## Restrict entities access for unauthenticated users
 
@@ -925,3 +935,8 @@ Restrict access for unauthenticated users to timelines (public and federate), us
 * `activities` - statuses
   * `local`
   * `remote`
+
+
+## Pleroma.Web.ApiSpec.CastAndValidate
+
+* `:strict` a boolean, enables strict input validation (useful in development, not recommended in production). Defaults to `false`.

installation/pleroma-apache.conf

@@ -32,9 +32,8 @@ CustomLog ${APACHE_LOG_DIR}/access.log combined
 
 <VirtualHost *:443>
     SSLEngine on
-    SSLCertificateFile      /etc/letsencrypt/live/${servername}/cert.pem
+    SSLCertificateFile      /etc/letsencrypt/live/${servername}/fullchain.pem
     SSLCertificateKeyFile   /etc/letsencrypt/live/${servername}/privkey.pem
-    SSLCertificateChainFile /etc/letsencrypt/live/${servername}/fullchain.pem
 
     # Mozilla modern configuration, tweak to your needs
     SSLProtocol             all -SSLv3 -TLSv1 -TLSv1.1

lib/mix/tasks/pleroma/user.ex

@@ -8,6 +8,8 @@ defmodule Mix.Tasks.Pleroma.User do
   alias Ecto.Changeset
   alias Pleroma.User
   alias Pleroma.UserInviteToken
+  alias Pleroma.Web.ActivityPub.Builder
+  alias Pleroma.Web.ActivityPub.Pipeline
 
   @shortdoc "Manages Pleroma users"
   @moduledoc File.read!("docs/administration/CLI_tasks/user.md")
@@ -96,8 +98,9 @@ def run(["new", nickname, email | rest]) do
   def run(["rm", nickname]) do
     start_pleroma()
 
-    with %User{local: true} = user <- User.get_cached_by_nickname(nickname) do
+    with %User{local: true} = user <- User.get_cached_by_nickname(nickname),
-      User.perform(:delete, user)
+         {:ok, delete_data, _} <- Builder.delete(user, user.ap_id),
+         {:ok, _delete, _} <- Pipeline.common_pipeline(delete_data, local: true) do
       shell_info("User #{nickname} deleted.")
     else
       _ -> shell_error("No local user #{nickname}")

lib/pleroma/application.ex

@@ -173,7 +173,14 @@ defp chat_enabled?, do: Config.get([:chat, :enabled])
   defp streamer_child(env) when env in [:test, :benchmark], do: []
 
   defp streamer_child(_) do
-    [Pleroma.Web.Streamer.supervisor()]
+    [
+      {Registry,
+       [
+         name: Pleroma.Web.Streamer.registry(),
+         keys: :duplicate,
+         partitions: System.schedulers_online()
+       ]}
+    ]
   end
 
   defp chat_child(_env, true) do

lib/pleroma/conversation/participation.ex

@@ -128,7 +128,7 @@ def for_user(user, params \\ %{}) do
     |> Pleroma.Pagination.fetch_paginated(params)
   end
 
-  def restrict_recipients(query, user, %{"recipients" => user_ids}) do
+  def restrict_recipients(query, user, %{recipients: user_ids}) do
     user_binary_ids =
       [user.id | user_ids]
       |> Enum.uniq()
@@ -172,7 +172,7 @@ def for_user_with_last_activity_id(user, params \\ %{}) do
         | last_activity_id: activity_id
       }
     end)
-    |> Enum.filter(& &1.last_activity_id)
+    |> Enum.reject(&is_nil(&1.last_activity_id))
   end
 
   def get(_, _ \\ [])

lib/pleroma/filter.ex

@@ -89,11 +89,10 @@ def delete(%Pleroma.Filter{id: filter_key} = filter) when is_nil(filter_key) do
     |> Repo.delete()
   end
 
-  def update(%Pleroma.Filter{} = filter) do
+  def update(%Pleroma.Filter{} = filter, params) do
-    destination = Map.from_struct(filter)
+    filter
-
+    |> cast(params, [:phrase, :context, :hide, :expires_at, :whole_word])
-    Pleroma.Filter.get(filter.filter_id, %{id: filter.user_id})
+    |> validate_required([:phrase, :context])
-    |> cast(destination, [:phrase, :context, :hide, :expires_at, :whole_word])
     |> Repo.update()
   end
 end

lib/pleroma/mfa.ex

@@ -0,0 +1,156 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.MFA do
+  @moduledoc """
+  The MFA context.
+  """
+
+  alias Comeonin.Pbkdf2
+  alias Pleroma.User
+
+  alias Pleroma.MFA.BackupCodes
+  alias Pleroma.MFA.Changeset
+  alias Pleroma.MFA.Settings
+  alias Pleroma.MFA.TOTP
+
+  @doc """
+  Returns MFA methods the user has enabled.
+
+  ## Examples
+
+    iex> Pleroma.MFA.supported_method(User)
+    "totp, u2f"
+  """
+  @spec supported_methods(User.t()) :: String.t()
+  def supported_methods(user) do
+    settings = fetch_settings(user)
+
+    Settings.mfa_methods()
+    |> Enum.reduce([], fn m, acc ->
+      if method_enabled?(m, settings) do
+        acc ++ [m]
+      else
+        acc
+      end
+    end)
+    |> Enum.join(",")
+  end
+
+  @doc "Checks that user enabled MFA"
+  def require?(user) do
+    fetch_settings(user).enabled
+  end
+
+  @doc """
+  Display MFA settings of user
+  """
+  def mfa_settings(user) do
+    settings = fetch_settings(user)
+
+    Settings.mfa_methods()
+    |> Enum.map(fn m -> [m, method_enabled?(m, settings)] end)
+    |> Enum.into(%{enabled: settings.enabled}, fn [a, b] -> {a, b} end)
+  end
+
+  @doc false
+  def fetch_settings(%User{} = user) do
+    user.multi_factor_authentication_settings || %Settings{}
+  end
+
+  @doc "clears backup codes"
+  def invalidate_backup_code(%User{} = user, hash_code) do
+    %{backup_codes: codes} = fetch_settings(user)
+
+    user
+    |> Changeset.cast_backup_codes(codes -- [hash_code])
+    |> User.update_and_set_cache()
+  end
+
+  @doc "generates backup codes"
+  @spec generate_backup_codes(User.t()) :: {:ok, list(binary)} | {:error, String.t()}
+  def generate_backup_codes(%User{} = user) do
+    with codes <- BackupCodes.generate(),
+         hashed_codes <- Enum.map(codes, &Pbkdf2.hashpwsalt/1),
+         changeset <- Changeset.cast_backup_codes(user, hashed_codes),
+         {:ok, _} <- User.update_and_set_cache(changeset) do
+      {:ok, codes}
+    else
+      {:error, msg} ->
+        %{error: msg}
+    end
+  end
+
+  @doc """
+  Generates secret key and set delivery_type to 'app' for TOTP method.
+  """
+  @spec setup_totp(User.t()) :: {:ok, User.t()} | {:error, Ecto.Changeset.t()}
+  def setup_totp(user) do
+    user
+    |> Changeset.setup_totp(%{secret: TOTP.generate_secret(), delivery_type: "app"})
+    |> User.update_and_set_cache()
+  end
+
+  @doc """
+  Confirms the TOTP method for user.
+
+  `attrs`:
+    `password` - current user password
+    `code` - TOTP token
+  """
+  @spec confirm_totp(User.t(), map()) :: {:ok, User.t()} | {:error, Ecto.Changeset.t() | atom()}
+  def confirm_totp(%User{} = user, attrs) do
+    with settings <- user.multi_factor_authentication_settings.totp,
+         {:ok, :pass} <- TOTP.validate_token(settings.secret, attrs["code"]) do
+      user
+      |> Changeset.confirm_totp()
+      |> User.update_and_set_cache()
+    end
+  end
+
+  @doc """
+  Disables the TOTP method for user.
+
+  `attrs`:
+    `password` - current user password
+  """
+  @spec disable_totp(User.t()) :: {:ok, User.t()} | {:error, Ecto.Changeset.t()}
+  def disable_totp(%User{} = user) do
+    user
+    |> Changeset.disable_totp()
+    |> Changeset.disable()
+    |> User.update_and_set_cache()
+  end
+
+  @doc """
+  Force disables all MFA methods for user.
+  """
+  @spec disable(User.t()) :: {:ok, User.t()} | {:error, Ecto.Changeset.t()}
+  def disable(%User{} = user) do
+    user
+    |> Changeset.disable_totp()
+    |> Changeset.disable(true)
+    |> User.update_and_set_cache()
+  end
+
+  @doc """
+  Checks if the user has MFA method enabled.
+  """
+  def method_enabled?(method, settings) do
+    with {:ok, %{confirmed: true} = _} <- Map.fetch(settings, method) do
+      true
+    else
+      _ -> false
+    end
+  end
+
+  @doc """
+  Checks if the user has enabled at least one MFA method.
+  """
+  def enabled?(settings) do
+    Settings.mfa_methods()
+    |> Enum.map(fn m -> method_enabled?(m, settings) end)
+    |> Enum.any?()
+  end
+end

lib/pleroma/mfa/backup_codes.ex

@@ -0,0 +1,31 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.MFA.BackupCodes do
+  @moduledoc """
+  This module contains functions for generating backup codes.
+  """
+  alias Pleroma.Config
+
+  @config_ns [:instance, :multi_factor_authentication, :backup_codes]
+
+  @doc """
+  Generates backup codes.
+  """
+  @spec generate(Keyword.t()) :: list(String.t())
+  def generate(opts \\ []) do
+    number_of_codes = Keyword.get(opts, :number_of_codes, default_backup_codes_number())
+    code_length = Keyword.get(opts, :length, default_backup_codes_code_length())
+
+    Enum.map(1..number_of_codes, fn _ ->
+      :crypto.strong_rand_bytes(div(code_length, 2))
+      |> Base.encode16(case: :lower)
+    end)
+  end
+
+  defp default_backup_codes_number, do: Config.get(@config_ns ++ [:number], 5)
+
+  defp default_backup_codes_code_length,
+    do: Config.get(@config_ns ++ [:length], 16)
+end

lib/pleroma/mfa/changeset.ex

@@ -0,0 +1,64 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.MFA.Changeset do
+  alias Pleroma.MFA
+  alias Pleroma.MFA.Settings
+  alias Pleroma.User
+
+  def disable(%Ecto.Changeset{} = changeset, force \\ false) do
+    settings =
+      changeset
+      |> Ecto.Changeset.apply_changes()
+      |> MFA.fetch_settings()
+
+    if force || not MFA.enabled?(settings) do
+      put_change(changeset, %Settings{settings | enabled: false})
+    else
+      changeset
+    end
+  end
+
+  def disable_totp(%User{multi_factor_authentication_settings: settings} = user) do
+    user
+    |> put_change(%Settings{settings | totp: %Settings.TOTP{}})
+  end
+
+  def confirm_totp(%User{multi_factor_authentication_settings: settings} = user) do
+    totp_settings = %Settings.TOTP{settings.totp | confirmed: true}
+
+    user
+    |> put_change(%Settings{settings | totp: totp_settings, enabled: true})
+  end
+
+  def setup_totp(%User{} = user, attrs) do
+    mfa_settings = MFA.fetch_settings(user)
+
+    totp_settings =
+      %Settings.TOTP{}
+      |> Ecto.Changeset.cast(attrs, [:secret, :delivery_type])
+
+    user
+    |> put_change(%Settings{mfa_settings | totp: Ecto.Changeset.apply_changes(totp_settings)})
+  end
+
+  def cast_backup_codes(%User{} = user, codes) do
+    user
+    |> put_change(%Settings{
+      user.multi_factor_authentication_settings
+      | backup_codes: codes
+    })
+  end
+
+  defp put_change(%User{} = user, settings) do
+    user
+    |> Ecto.Changeset.change()
+    |> put_change(settings)
+  end
+
+  defp put_change(%Ecto.Changeset{} = changeset, settings) do
+    changeset
+    |> Ecto.Changeset.put_change(:multi_factor_authentication_settings, settings)
+  end
+end

lib/pleroma/mfa/settings.ex

@@ -0,0 +1,24 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.MFA.Settings do
+  use Ecto.Schema
+
+  @primary_key false
+
+  @mfa_methods [:totp]
+  embedded_schema do
+    field(:enabled, :boolean, default: false)
+    field(:backup_codes, {:array, :string}, default: [])
+
+    embeds_one :totp, TOTP, on_replace: :delete, primary_key: false do
+      field(:secret, :string)
+      # app | sms
+      field(:delivery_type, :string, default: "app")
+      field(:confirmed, :boolean, default: false)
+    end
+  end
+
+  def mfa_methods, do: @mfa_methods
+end

lib/pleroma/mfa/token.ex

@@ -0,0 +1,106 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.MFA.Token do
+  use Ecto.Schema
+  import Ecto.Query
+  import Ecto.Changeset
+
+  alias Pleroma.Repo
+  alias Pleroma.User
+  alias Pleroma.Web.OAuth.Authorization
+  alias Pleroma.Web.OAuth.Token, as: OAuthToken
+
+  @expires 300
+
+  schema "mfa_tokens" do
+    field(:token, :string)
+    field(:valid_until, :naive_datetime_usec)
+
+    belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
+    belongs_to(:authorization, Authorization)
+
+    timestamps()
+  end
+
+  def get_by_token(token) do
+    from(
+      t in __MODULE__,
+      where: t.token == ^token,
+      preload: [:user, :authorization]
+    )
+    |> Repo.find_resource()
+  end
+
+  def validate(token) do
+    with {:fetch_token, {:ok, token}} <- {:fetch_token, get_by_token(token)},
+         {:expired, false} <- {:expired, is_expired?(token)} do
+      {:ok, token}
+    else
+      {:expired, _} -> {:error, :expired_token}
+      {:fetch_token, _} -> {:error, :not_found}
+      error -> {:error, error}
+    end
+  end
+
+  def create_token(%User{} = user) do
+    %__MODULE__{}
+    |> change
+    |> assign_user(user)
+    |> put_token
+    |> put_valid_until
+    |> Repo.insert()
+  end
+
+  def create_token(user, authorization) do
+    %__MODULE__{}
+    |> change
+    |> assign_user(user)
+    |> assign_authorization(authorization)
+    |> put_token
+    |> put_valid_until
+    |> Repo.insert()
+  end
+
+  defp assign_user(changeset, user) do
+    changeset
+    |> put_assoc(:user, user)
+    |> validate_required([:user])
+  end
+
+  defp assign_authorization(changeset, authorization) do
+    changeset
+    |> put_assoc(:authorization, authorization)
+    |> validate_required([:authorization])
+  end
+
+  defp put_token(changeset) do
+    changeset
+    |> change(%{token: OAuthToken.Utils.generate_token()})
+    |> validate_required([:token])
+    |> unique_constraint(:token)
+  end
+
+  defp put_valid_until(changeset) do
+    expires_in = NaiveDateTime.add(NaiveDateTime.utc_now(), @expires)
+
+    changeset
+    |> change(%{valid_until: expires_in})
+    |> validate_required([:valid_until])
+  end
+
+  def is_expired?(%__MODULE__{valid_until: valid_until}) do
+    NaiveDateTime.diff(NaiveDateTime.utc_now(), valid_until) > 0
+  end
+
+  def is_expired?(_), do: false
+
+  def delete_expired_tokens do
+    from(
+      q in __MODULE__,
+      where: fragment("?", q.valid_until) < ^Timex.now()
+    )
+    |> Repo.delete_all()
+  end
+end

lib/pleroma/mfa/totp.ex

@@ -0,0 +1,86 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.MFA.TOTP do
+  @moduledoc """
+  This module represents functions to create secrets for
+  TOTP Application as well as validate them with a time based token.
+  """
+  alias Pleroma.Config
+
+  @config_ns [:instance, :multi_factor_authentication, :totp]
+
+  @doc """
+  https://github.com/google/google-authenticator/wiki/Key-Uri-Format
+  """
+  def provisioning_uri(secret, label, opts \\ []) do
+    query =
+      %{
+        secret: secret,
+        issuer: Keyword.get(opts, :issuer, default_issuer()),
+        digits: Keyword.get(opts, :digits, default_digits()),
+        period: Keyword.get(opts, :period, default_period())
+      }
+      |> Enum.filter(fn {_, v} -> not is_nil(v) end)
+      |> Enum.into(%{})
+      |> URI.encode_query()
+
+    %URI{scheme: "otpauth", host: "totp", path: "/" <> label, query: query}
+    |> URI.to_string()
+  end
+
+  defp default_period, do: Config.get(@config_ns ++ [:period])
+  defp default_digits, do: Config.get(@config_ns ++ [:digits])
+
+  defp default_issuer,
+    do: Config.get(@config_ns ++ [:issuer], Config.get([:instance, :name]))
+
+  @doc "Creates a random Base 32 encoded string"
+  def generate_secret do
+    Base.encode32(:crypto.strong_rand_bytes(10))
+  end
+
+  @doc "Generates a valid token based on a secret"
+  def generate_token(secret) do
+    :pot.totp(secret)
+  end
+
+  @doc """
+  Validates a given token based on a secret.
+
+  optional parameters:
+  `token_length` default `6`
+  `interval_length` default `30`
+  `window` default 0
+
+  Returns {:ok, :pass} if the token is valid and
+  {:error, :invalid_token} if it is not.
+  """
+  @spec validate_token(String.t(), String.t()) ::
+          {:ok, :pass} | {:error, :invalid_token | :invalid_secret_and_token}
+  def validate_token(secret, token)
+      when is_binary(secret) and is_binary(token) do
+    opts = [
+      token_length: default_digits(),
+      interval_length: default_period()
+    ]
+
+    validate_token(secret, token, opts)
+  end
+
+  def validate_token(_, _), do: {:error, :invalid_secret_and_token}
+
+  @doc "See `validate_token/2`"
+  @spec validate_token(String.t(), String.t(), Keyword.t()) ::
+          {:ok, :pass} | {:error, :invalid_token | :invalid_secret_and_token}
+  def validate_token(secret, token, options)
+      when is_binary(secret) and is_binary(token) do
+    case :pot.valid_totp(token, secret, options) do
+      true -> {:ok, :pass}
+      false -> {:error, :invalid_token}
+    end
+  end
+
+  def validate_token(_, _, _), do: {:error, :invalid_secret_and_token}
+end

lib/pleroma/plugs/ensure_authenticated_plug.ex

@@ -15,26 +15,25 @@ def init(options) do
   end
 
   @impl true
+  def perform(
+        %{
+          assigns: %{
+            auth_credentials: %{password: _},
+            user: %User{multi_factor_authentication_settings: %{enabled: true}}
+          }
+        } = conn,
+        _
+      ) do
+    conn
+    |> render_error(:forbidden, "Two-factor authentication enabled, you must use a access token.")
+    |> halt()
+  end
+
   def perform(%{assigns: %{user: %User{}}} = conn, _) do
     conn
   end
 
-  def perform(conn, options) do
+  def perform(conn, _) do
-    perform =
-      cond do
-        options[:if_func] -> options[:if_func].()
-        options[:unless_func] -> !options[:unless_func].()
-        true -> true
-      end
-
-    if perform do
-      fail(conn)
-    else
-      conn
-    end
-  end
-
-  def fail(conn) do
     conn
     |> render_error(:forbidden, "Invalid credentials.")
     |> halt()

lib/pleroma/plugs/federating_plug.ex

@@ -19,6 +19,9 @@ def call(conn, _opts) do
 
   def federating?, do: Pleroma.Config.get([:instance, :federating])
 
+  # Definition for the use in :if_func / :unless_func plug options
+  def federating?(_conn), do: federating?()
+
   defp fail(conn) do
     conn
     |> put_status(404)

lib/pleroma/stats.ex

@@ -91,7 +91,7 @@ def calculate_stat_data do
       peers: peers,
       stats: %{
         domain_count: domain_count,
-        status_count: status_count,
+        status_count: status_count || 0,
         user_count: user_count
       }
     }

lib/pleroma/user.ex

@@ -20,6 +20,7 @@ defmodule Pleroma.User do
   alias Pleroma.Formatter
   alias Pleroma.HTML
   alias Pleroma.Keys
+  alias Pleroma.MFA
   alias Pleroma.Notification
   alias Pleroma.Object
   alias Pleroma.Registration
@@ -115,7 +116,6 @@ defmodule Pleroma.User do
     field(:is_admin, :boolean, default: false)
     field(:show_role, :boolean, default: true)
     field(:settings, :map, default: nil)
-    field(:magic_key, :string, default: nil)
     field(:uri, Types.Uri, default: nil)
     field(:hide_followers_count, :boolean, default: false)
     field(:hide_follows_count, :boolean, default: false)
@@ -191,6 +191,12 @@ defmodule Pleroma.User do
     # `:subscribers` is deprecated (replaced with `subscriber_users` relation)
     field(:subscribers, {:array, :string}, default: [])
 
+    embeds_one(
+      :multi_factor_authentication_settings,
+      MFA.Settings,
+      on_replace: :delete
+    )
+
     timestamps()
   end
 
@@ -389,7 +395,6 @@ def remote_user_changeset(struct \\ %User{local: false}, params) do
         :banner,
         :locked,
         :last_refreshed_at,
-        :magic_key,
         :uri,
         :follower_address,
         :following_address,
@@ -929,6 +934,7 @@ def get_cached_by_nickname_or_id(nickname_or_id, opts \\ []) do
     end
   end
 
+  @spec get_by_nickname(String.t()) :: User.t() | nil
   def get_by_nickname(nickname) do
     Repo.get_by(User, nickname: nickname) ||
       if Regex.match?(~r(@#{Pleroma.Web.Endpoint.host()})i, nickname) do
@@ -1429,8 +1435,6 @@ def perform(:force_password_reset, user), do: force_password_reset(user)
 
   @spec perform(atom(), User.t()) :: {:ok, User.t()}
   def perform(:delete, %User{} = user) do
-    {:ok, _user} = ActivityPub.delete(user)
-
     # Remove all relationships
     user
     |> get_followers()
@@ -1540,18 +1544,20 @@ def follow_import(%User{} = follower, followed_identifiers)
     })
   end
 
-  def delete_user_activities(%User{ap_id: ap_id}) do
+  def delete_user_activities(%User{ap_id: ap_id} = user) do
     ap_id
     |> Activity.Queries.by_actor()
     |> RepoStreamer.chunk_stream(50)
-    |> Stream.each(fn activities -> Enum.each(activities, &delete_activity/1) end)
+    |> Stream.each(fn activities ->
+      Enum.each(activities, fn activity -> delete_activity(activity, user) end)
+    end)
     |> Stream.run()
   end
 
-  defp delete_activity(%{data: %{"type" => "Create"}} = activity) do
+  defp delete_activity(%{data: %{"type" => "Create", "object" => object}}, user) do
-    activity
+    {:ok, delete_data, _} = Builder.delete(user, object)
-    |> Object.normalize()
+
-    |> ActivityPub.delete()
+    Pipeline.common_pipeline(delete_data, local: true)
   end
 
   defp delete_activity(%{data: %{"type" => type}} = activity) when type in ["Like", "Announce"] do
@@ -1560,11 +1566,10 @@ defp delete_activity(%{data: %{"type" => type}} = activity) when type in ["Like"
       |> get_cached_by_ap_id()
 
     {:ok, undo, _} = Builder.undo(actor, activity)
-
     Pipeline.common_pipeline(undo, local: true)
   end
 
-  defp delete_activity(_activity), do: "Doing nothing"
+  defp delete_activity(_activity, _user), do: "Doing nothing"
 
   def html_filter_policy(%User{no_rich_text: true}) do
     Pleroma.HTML.Scrubber.TwitterText

lib/pleroma/user/query.ex

@@ -45,6 +45,7 @@ defmodule Pleroma.User.Query do
             is_admin: boolean(),
             is_moderator: boolean(),
             super_users: boolean(),
+            exclude_service_users: boolean(),
             followers: User.t(),
             friends: User.t(),
             recipients_from_activity: [String.t()],
@@ -88,6 +89,10 @@ defp compose_query({key, value}, query)
     where(query, [u], ilike(field(u, ^key), ^"%#{value}%"))
   end
 
+  defp compose_query({:exclude_service_users, _}, query) do
+    where(query, [u], not like(u.ap_id, "%/relay") and not like(u.ap_id, "%/internal/fetch"))
+  end
+
   defp compose_query({key, value}, query)
        when key in @equal_criteria and not_empty_string(value) do
     where(query, [u], ^[{key, value}])
@@ -98,7 +103,7 @@ defp compose_query({key, values}, query) when key in @contains_criteria and is_l
   end
 
   defp compose_query({:tags, tags}, query) when is_list(tags) and length(tags) > 0 do
-    Enum.reduce(tags, query, &prepare_tag_criteria/2)
+    where(query, [u], fragment("? && ?", u.tags, ^tags))
   end
 
   defp compose_query({:is_admin, _}, query) do
@@ -192,10 +197,6 @@ defp compose_query({:limit, limit}, query) do
 
   defp compose_query(_unsupported_param, query), do: query
 
-  defp prepare_tag_criteria(tag, query) do
-    or_where(query, [u], fragment("? = any(?)", ^tag, u.tags))
-  end
-
   defp location_query(query, local) do
     where(query, [u], u.local == ^local)
     |> where([u], not is_nil(u.nickname))

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -170,12 +170,6 @@ def insert(map, local \\ true, fake \\ false, bypass_actor_check \\ false) when
 
       BackgroundWorker.enqueue("fetch_data_for_activity", %{"activity_id" => activity.id})
 
-      Notification.create_notifications(activity)
-
-      conversation = create_or_bump_conversation(activity, map["actor"])
-      participations = get_participations(conversation)
-      stream_out(activity)
-      stream_out_participations(participations)
       {:ok, activity}
     else
       %Activity{} = activity ->
@@ -198,6 +192,15 @@ def insert(map, local \\ true, fake \\ false, bypass_actor_check \\ false) when
     end
   end
 
+  def notify_and_stream(activity) do
+    Notification.create_notifications(activity)
+
+    conversation = create_or_bump_conversation(activity, activity.actor)
+    participations = get_participations(conversation)
+    stream_out(activity)
+    stream_out_participations(participations)
+  end
+
   defp create_or_bump_conversation(activity, actor) do
     with {:ok, conversation} <- Conversation.create_or_bump_for(activity),
          %User{} = user <- User.get_cached_by_ap_id(actor),
@@ -274,6 +277,7 @@ defp do_create(%{to: to, actor: actor, context: context, object: object} = param
          _ <- increase_poll_votes_if_vote(create_data),
          {:quick_insert, false, activity} <- {:quick_insert, quick_insert?, activity},
          {:ok, _actor} <- increase_note_count_if_public(actor, activity),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     else
@@ -301,6 +305,7 @@ def listen(%{to: to, actor: actor, context: context, object: object} = params) d
              additional
            ),
          {:ok, activity} <- insert(listen_data, local),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     end
@@ -325,6 +330,7 @@ def accept_or_reject(type, %{to: to, actor: actor, object: object} = params) do
            %{"to" => to, "type" => type, "actor" => actor.ap_id, "object" => object}
            |> Utils.maybe_put("id", activity_id),
          {:ok, activity} <- insert(data, local),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     end
@@ -344,6 +350,7 @@ def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
          },
          data <- Utils.maybe_put(data, "id", activity_id),
          {:ok, activity} <- insert(data, local),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     end
@@ -365,6 +372,7 @@ defp do_react_with_emoji(user, object, emoji, options) do
          reaction_data <- make_emoji_reaction_data(user, object, emoji, activity_id),
          {:ok, activity} <- insert(reaction_data, local),
          {:ok, object} <- add_emoji_reaction_to_object(activity, object),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity, object}
     else
@@ -394,6 +402,7 @@ defp do_announce(user, object, activity_id, local, public) do
          announce_data <- make_announce_data(user, object, activity_id, public),
          {:ok, activity} <- insert(announce_data, local),
          {:ok, object} <- add_announce_to_object(activity, object),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity, object}
     else
@@ -414,6 +423,7 @@ def follow(follower, followed, activity_id \\ nil, local \\ true) do
   defp do_follow(follower, followed, activity_id, local) do
     with data <- make_follow_data(follower, followed, activity_id),
          {:ok, activity} <- insert(data, local),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     else
@@ -435,6 +445,7 @@ defp do_unfollow(follower, followed, activity_id, local) do
          {:ok, follow_activity} <- update_follow_state(follow_activity, "cancelled"),
          unfollow_data <- make_unfollow_data(follower, followed, follow_activity, activity_id),
          {:ok, activity} <- insert(unfollow_data, local),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     else
@@ -443,67 +454,6 @@ defp do_unfollow(follower, followed, activity_id, local) do
     end
   end
 
-  @spec delete(User.t() | Object.t(), keyword()) :: {:ok, User.t() | Object.t()} | {:error, any()}
-  def delete(entity, options \\ []) do
-    with {:ok, result} <- Repo.transaction(fn -> do_delete(entity, options) end) do
-      result
-    end
-  end
-
-  defp do_delete(%User{ap_id: ap_id, follower_address: follower_address} = user, _) do
-    with data <- %{
-           "to" => [follower_address],
-           "type" => "Delete",
-           "actor" => ap_id,
-           "object" => %{"type" => "Person", "id" => ap_id}
-         },
-         {:ok, activity} <- insert(data, true, true, true),
-         :ok <- maybe_federate(activity) do
-      {:ok, user}
-    end
-  end
-
-  defp do_delete(%Object{data: %{"id" => id, "actor" => actor}} = object, options) do
-    local = Keyword.get(options, :local, true)
-    activity_id = Keyword.get(options, :activity_id, nil)
-    actor = Keyword.get(options, :actor, actor)
-
-    user = User.get_cached_by_ap_id(actor)
-    to = (object.data["to"] || []) ++ (object.data["cc"] || [])
-
-    with create_activity <- Activity.get_create_by_object_ap_id(id),
-         data <-
-           %{
-             "type" => "Delete",
-             "actor" => actor,
-             "object" => id,
-             "to" => to,
-             "deleted_activity_id" => create_activity && create_activity.id
-           }
-           |> maybe_put("id", activity_id),
-         {:ok, activity} <- insert(data, local, false),
-         {:ok, object, _create_activity} <- Object.delete(object),
-         stream_out_participations(object, user),
-         _ <- decrease_replies_count_if_reply(object),
-         {:ok, _actor} <- decrease_note_count_if_public(user, object),
-         :ok <- maybe_federate(activity) do
-      {:ok, activity}
-    else
-      {:error, error} ->
-        Repo.rollback(error)
-    end
-  end
-
-  defp do_delete(%Object{data: %{"type" => "Tombstone", "id" => ap_id}}, _) do
-    activity =
-      ap_id
-      |> Activity.Queries.by_object_id()
-      |> Activity.Queries.by_type("Delete")
-      |> Repo.one()
-
-    {:ok, activity}
-  end
-
   @spec block(User.t(), User.t(), String.t() | nil, boolean()) ::
           {:ok, Activity.t()} | {:error, any()}
   def block(blocker, blocked, activity_id \\ nil, local \\ true) do
@@ -525,6 +475,7 @@ defp do_block(blocker, blocked, activity_id, local) do
     with true <- outgoing_blocks,
          block_data <- make_block_data(blocker, blocked, activity_id),
          {:ok, activity} <- insert(block_data, local),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     else
@@ -558,6 +509,7 @@ def flag(
     with flag_data <- make_flag_data(params, additional),
          {:ok, activity} <- insert(flag_data, local),
          {:ok, stripped_activity} <- strip_report_status_data(activity),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(stripped_activity) do
       User.all_superusers()
       |> Enum.filter(fn user -> not is_nil(user.email) end)
@@ -581,7 +533,8 @@ def move(%User{} = origin, %User{} = target, local \\ true) do
     }
 
     with true <- origin.ap_id in target.also_known_as,
-         {:ok, activity} <- insert(params, local) do
+         {:ok, activity} <- insert(params, local),
+         _ <- notify_and_stream(activity) do
       maybe_federate(activity)
 
       BackgroundWorker.enqueue("move_following", %{

lib/pleroma/web/activity_pub/activity_pub_controller.ex

@@ -34,7 +34,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do
 
   plug(
     EnsureAuthenticatedPlug,
-    [unless_func: &FederatingPlug.federating?/0] when action not in @federating_only_actions
+    [unless_func: &FederatingPlug.federating?/1] when action not in @federating_only_actions
   )
 
   # Note: :following and :followers must be served even without authentication (as via :api)
@@ -415,7 +415,8 @@ defp handle_user_activity(%User{} = user, %{"type" => "Create"} = params) do
   defp handle_user_activity(%User{} = user, %{"type" => "Delete"} = params) do
     with %Object{} = object <- Object.normalize(params["object"]),
          true <- user.is_moderator || user.ap_id == object.data["actor"],
-         {:ok, delete} <- ActivityPub.delete(object) do
+         {:ok, delete_data, _} <- Builder.delete(user, object.data["id"]),
+         {:ok, delete, _} <- Pipeline.common_pipeline(delete_data, local: true) do
       {:ok, delete}
     else
       _ -> {:error, dgettext("errors", "Can't delete object")}

lib/pleroma/web/activity_pub/builder.ex

@@ -23,6 +23,33 @@ def undo(actor, object) do
      }, []}
   end
 
+  @spec delete(User.t(), String.t()) :: {:ok, map(), keyword()}
+  def delete(actor, object_id) do
+    object = Object.normalize(object_id, false)
+
+    user = !object && User.get_cached_by_ap_id(object_id)
+
+    to =
+      case {object, user} do
+        {%Object{}, _} ->
+          # We are deleting an object, address everyone who was originally mentioned
+          (object.data["to"] || []) ++ (object.data["cc"] || [])
+
+        {_, %User{follower_address: follower_address}} ->
+          # We are deleting a user, address the followers of that user
+          [follower_address]
+      end
+
+    {:ok,
+     %{
+       "id" => Utils.generate_activity_id(),
+       "actor" => actor.ap_id,
+       "object" => object_id,
+       "to" => to,
+       "type" => "Delete"
+     }, []}
+  end
+
   @spec like(User.t(), Object.t()) :: {:ok, map(), keyword()}
   def like(actor, object) do
     object_actor = User.get_cached_by_ap_id(object.data["actor"])

lib/pleroma/web/activity_pub/object_validator.ex

@@ -11,8 +11,10 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidator do
 
   alias Pleroma.Object
   alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator
   alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator
   alias Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator
+  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
 
   @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()}
   def validate(object, meta)
@@ -25,6 +27,16 @@ def validate(%{"type" => "Undo"} = object, meta) do
     end
   end
 
+  def validate(%{"type" => "Delete"} = object, meta) do
+    with cng <- DeleteValidator.cast_and_validate(object),
+         do_not_federate <- DeleteValidator.do_not_federate?(cng),
+         {:ok, object} <- Ecto.Changeset.apply_action(cng, :insert) do
+      object = stringify_keys(object)
+      meta = Keyword.put(meta, :do_not_federate, do_not_federate)
+      {:ok, object, meta}
+    end
+  end
+
   def validate(%{"type" => "Like"} = object, meta) do
     with {:ok, object} <-
            object |> LikeValidator.cast_and_validate() |> Ecto.Changeset.apply_action(:insert) do
@@ -33,13 +45,25 @@ def validate(%{"type" => "Like"} = object, meta) do
     end
   end
 
+  def stringify_keys(%{__struct__: _} = object) do
+    object
+    |> Map.from_struct()
+    |> stringify_keys
+  end
+
   def stringify_keys(object) do
     object
     |> Map.new(fn {key, val} -> {to_string(key), val} end)
   end
 
+  def fetch_actor(object) do
+    with {:ok, actor} <- Types.ObjectID.cast(object["actor"]) do
+      User.get_or_fetch_by_ap_id(actor)
+    end
+  end
+
   def fetch_actor_and_object(object) do
-    User.get_or_fetch_by_ap_id(object["actor"])
+    fetch_actor(object)
     Object.normalize(object["object"])
     :ok
   end

lib/pleroma/web/activity_pub/object_validators/common_validations.ex

@@ -9,7 +9,29 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations do
   alias Pleroma.Object
   alias Pleroma.User
 
-  def validate_actor_presence(cng, field_name \\ :actor) do
+  def validate_recipients_presence(cng, fields \\ [:to, :cc]) do
+    non_empty =
+      fields
+      |> Enum.map(fn field -> get_field(cng, field) end)
+      |> Enum.any?(fn
+        [] -> false
+        _ -> true
+      end)
+
+    if non_empty do
+      cng
+    else
+      fields
+      |> Enum.reduce(cng, fn field, cng ->
+        cng
+        |> add_error(field, "no recipients in any field")
+      end)
+    end
+  end
+
+  def validate_actor_presence(cng, options \\ []) do
+    field_name = Keyword.get(options, :field_name, :actor)
+
     cng
     |> validate_change(field_name, fn field_name, actor ->
       if User.get_cached_by_ap_id(actor) do
@@ -20,14 +42,39 @@ def validate_actor_presence(cng, field_name \\ :actor) do
     end)
   end
 
-  def validate_object_presence(cng, field_name \\ :object) do
+  def validate_object_presence(cng, options \\ []) do
+    field_name = Keyword.get(options, :field_name, :object)
+    allowed_types = Keyword.get(options, :allowed_types, false)
+
     cng
-    |> validate_change(field_name, fn field_name, object ->
+    |> validate_change(field_name, fn field_name, object_id ->
-      if Object.get_cached_by_ap_id(object) || Activity.get_by_ap_id(object) do
+      object = Object.get_cached_by_ap_id(object_id) || Activity.get_by_ap_id(object)
-        []
+
-      else
+      cond do
+        !object ->
           [{field_name, "can't find object"}]
+
+        object && allowed_types && object.data["type"] not in allowed_types ->
+          [{field_name, "object not in allowed types"}]
+
+        true ->
+          []
       end
     end)
   end
+
+  def validate_object_or_user_presence(cng, options \\ []) do
+    field_name = Keyword.get(options, :field_name, :object)
+    options = Keyword.put(options, :field_name, field_name)
+
+    actor_cng =
+      cng
+      |> validate_actor_presence(options)
+
+    object_cng =
+      cng
+      |> validate_object_presence(options)
+
+    if actor_cng.valid?, do: actor_cng, else: object_cng
+  end
 end

lib/pleroma/web/activity_pub/object_validators/delete_validator.ex

@@ -0,0 +1,99 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator do
+  use Ecto.Schema
+
+  alias Pleroma.Activity
+  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ObjectValidators.Types
+
+  import Ecto.Changeset
+  import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations
+
+  @primary_key false
+
+  embedded_schema do
+    field(:id, Types.ObjectID, primary_key: true)
+    field(:type, :string)
+    field(:actor, Types.ObjectID)
+    field(:to, Types.Recipients, default: [])
+    field(:cc, Types.Recipients, default: [])
+    field(:deleted_activity_id, Types.ObjectID)
+    field(:object, Types.ObjectID)
+  end
+
+  def cast_data(data) do
+    %__MODULE__{}
+    |> cast(data, __schema__(:fields))
+  end
+
+  def add_deleted_activity_id(cng) do
+    object =
+      cng
+      |> get_field(:object)
+
+    with %Activity{id: id} <- Activity.get_create_by_object_ap_id(object) do
+      cng
+      |> put_change(:deleted_activity_id, id)
+    else
+      _ -> cng
+    end
+  end
+
+  @deletable_types ~w{
+    Answer
+    Article
+    Audio
+    Event
+    Note
+    Page
+    Question
+    Video
+  }
+  def validate_data(cng) do
+    cng
+    |> validate_required([:id, :type, :actor, :to, :cc, :object])
+    |> validate_inclusion(:type, ["Delete"])
+    |> validate_actor_presence()
+    |> validate_deletion_rights()
+    |> validate_object_or_user_presence(allowed_types: @deletable_types)
+    |> add_deleted_activity_id()
+  end
+
+  def do_not_federate?(cng) do
+    !same_domain?(cng)
+  end
+
+  defp same_domain?(cng) do
+    actor_uri =
+      cng
+      |> get_field(:actor)
+      |> URI.parse()
+
+    object_uri =
+      cng
+      |> get_field(:object)
+      |> URI.parse()
+
+    object_uri.host == actor_uri.host
+  end
+
+  def validate_deletion_rights(cng) do
+    actor = User.get_cached_by_ap_id(get_field(cng, :actor))
+
+    if User.superuser?(actor) || same_domain?(cng) do
+      cng
+    else
+      cng
+      |> add_error(:actor, "is not allowed to delete object")
+    end
+  end
+
+  def cast_and_validate(data) do
+    data
+    |> cast_data
+    |> validate_data
+  end
+end

lib/pleroma/web/activity_pub/object_validators/like_validator.ex

@@ -20,8 +20,8 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do
     field(:object, Types.ObjectID)
     field(:actor, Types.ObjectID)
     field(:context, :string)
-    field(:to, {:array, :string}, default: [])
+    field(:to, Types.Recipients, default: [])
-    field(:cc, {:array, :string}, default: [])
+    field(:cc, Types.Recipients, default: [])
   end
 
   def cast_and_validate(data) do

lib/pleroma/web/activity_pub/object_validators/types/recipients.ex

@@ -0,0 +1,34 @@
+defmodule Pleroma.Web.ActivityPub.ObjectValidators.Types.Recipients do
+  use Ecto.Type
+
+  alias Pleroma.Web.ActivityPub.ObjectValidators.Types.ObjectID
+
+  def type, do: {:array, ObjectID}
+
+  def cast(object) when is_binary(object) do
+    cast([object])
+  end
+
+  def cast(data) when is_list(data) do
+    data
+    |> Enum.reduce({:ok, []}, fn element, acc ->
+      case {acc, ObjectID.cast(element)} do
+        {:error, _} -> :error
+        {_, :error} -> :error
+        {{:ok, list}, {:ok, id}} -> {:ok, [id | list]}
+      end
+    end)
+  end
+
+  def cast(_) do
+    :error
+  end
+
+  def dump(data) do
+    {:ok, data}
+  end
+
+  def load(data) do
+    {:ok, data}
+  end
+end

lib/pleroma/web/activity_pub/pipeline.ex

@@ -44,7 +44,9 @@ defp maybe_federate(%Object{}, _), do: {:ok, :not_federated}
 
   defp maybe_federate(%Activity{} = activity, meta) do
     with {:ok, local} <- Keyword.fetch(meta, :local) do
-      if local do
+      do_not_federate = meta[:do_not_federate]
+
+      if !do_not_federate && local do
         Federator.publish(activity)
         {:ok, :federated}
       else

lib/pleroma/web/activity_pub/side_effects.ex

@@ -10,6 +10,7 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do
   alias Pleroma.Object
   alias Pleroma.Repo
   alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Utils
 
   def handle(object, meta \\ [])
@@ -33,6 +34,49 @@ def handle(%{data: %{"type" => "Undo", "object" => undone_object}} = object, met
     end
   end
 
+  # Tasks this handles:
+  # - Delete and unpins the create activity
+  # - Replace object with Tombstone
+  # - Set up notification
+  # - Reduce the user note count
+  # - Reduce the reply count
+  # - Stream out the activity
+  def handle(%{data: %{"type" => "Delete", "object" => deleted_object}} = object, meta) do
+    deleted_object =
+      Object.normalize(deleted_object, false) || User.get_cached_by_ap_id(deleted_object)
+
+    result =
+      case deleted_object do
+        %Object{} ->
+          with {:ok, deleted_object, activity} <- Object.delete(deleted_object),
+               %User{} = user <- User.get_cached_by_ap_id(deleted_object.data["actor"]) do
+            User.remove_pinnned_activity(user, activity)
+
+            {:ok, user} = ActivityPub.decrease_note_count_if_public(user, deleted_object)
+
+            if in_reply_to = deleted_object.data["inReplyTo"] do
+              Object.decrease_replies_count(in_reply_to)
+            end
+
+            ActivityPub.stream_out(object)
+            ActivityPub.stream_out_participations(deleted_object, user)
+            :ok
+          end
+
+        %User{} ->
+          with {:ok, _} <- User.delete(deleted_object) do
+            :ok
+          end
+      end
+
+    if result == :ok do
+      Notification.create_notifications(object)
+      {:ok, object, meta}
+    else
+      {:error, result}
+    end
+  end
+
   # Nothing to do
   def handle(object, meta) do
     {:ok, object, meta}

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -735,36 +735,12 @@ def handle_incoming(
     end
   end
 
-  # TODO: We presently assume that any actor on the same origin domain as the object being
-  # deleted has the rights to delete that object.  A better way to validate whether or not
-  # the object should be deleted is to refetch the object URI, which should return either
-  # an error or a tombstone.  This would allow us to verify that a deletion actually took
-  # place.
   def handle_incoming(
-        %{"type" => "Delete", "object" => object_id, "actor" => actor, "id" => id} = data,
+        %{"type" => "Delete"} = data,
         _options
       ) do
-    object_id = Utils.get_ap_id(object_id)
+    with {:ok, activity, _} <- Pipeline.common_pipeline(data, local: false) do
-
-    with actor <- Containment.get_actor(data),
-         {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor),
-         {:ok, object} <- get_obj_helper(object_id),
-         :ok <- Containment.contain_origin(actor.ap_id, object.data),
-         {:ok, activity} <-
-           ActivityPub.delete(object, local: false, activity_id: id, actor: actor.ap_id) do
       {:ok, activity}
-    else
-      nil ->
-        case User.get_cached_by_ap_id(object_id) do
-          %User{ap_id: ^actor} = user ->
-            User.delete(user)
-
-          nil ->
-            :error
-        end
-
-      _e ->
-        :error
     end
   end
 
@@ -1129,6 +1105,10 @@ def set_conversation(object) do
     Map.put(object, "conversation", object["context"])
   end
 
+  def set_sensitive(%{"sensitive" => true} = object) do
+    object
+  end
+
   def set_sensitive(object) do
     tags = object["tag"] || []
     Map.put(object, "sensitive", "nsfw" in tags)

lib/pleroma/web/activity_pub/utils.ex

@@ -512,7 +512,7 @@ def get_latest_reaction(internal_activity_id, %{ap_id: ap_id}, emoji) do
   #### Announce-related helpers
 
   @doc """
-  Retruns an existing announce activity if the notice has already been announced
+  Returns an existing announce activity if the notice has already been announced
   """
   @spec get_existing_announce(String.t(), map()) :: Activity.t() | nil
   def get_existing_announce(actor, %{data: %{"id" => ap_id}}) do

lib/pleroma/web/admin_api/admin_api_controller.ex

@@ -10,6 +10,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   alias Pleroma.Activity
   alias Pleroma.Config
   alias Pleroma.ConfigDB
+  alias Pleroma.MFA
   alias Pleroma.ModerationLog
   alias Pleroma.Plugs.OAuthScopesPlug
   alias Pleroma.ReportNote
@@ -17,6 +18,8 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   alias Pleroma.User
   alias Pleroma.UserInviteToken
   alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.Builder
+  alias Pleroma.Web.ActivityPub.Pipeline
   alias Pleroma.Web.ActivityPub.Relay
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.AdminAPI.AccountView
@@ -59,6 +62,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
            :right_add,
            :right_add_multiple,
            :right_delete,
+           :disable_mfa,
            :right_delete_multiple,
            :update_user_credentials
          ]
@@ -93,7 +97,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
   plug(
     OAuthScopesPlug,
     %{scopes: ["read:statuses"], admin: true}
-    when action in [:list_statuses, :list_user_statuses, :list_instance_statuses]
+    when action in [:list_statuses, :list_user_statuses, :list_instance_statuses, :status_show]
   )
 
   plug(
@@ -133,23 +137,20 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
 
   action_fallback(:errors)
 
-  def user_delete(%{assigns: %{user: admin}} = conn, %{"nickname" => nickname}) do
+  def user_delete(conn, %{"nickname" => nickname}) do
-    user = User.get_cached_by_nickname(nickname)
+    user_delete(conn, %{"nicknames" => [nickname]})
-    User.delete(user)
-
-    ModerationLog.insert_log(%{
-      actor: admin,
-      subject: [user],
-      action: "delete"
-    })
-
-    conn
-    |> json(nickname)
   end
 
   def user_delete(%{assigns: %{user: admin}} = conn, %{"nicknames" => nicknames}) do
-    users = nicknames |> Enum.map(&User.get_cached_by_nickname/1)
+    users =
-    User.delete(users)
+      nicknames
+      |> Enum.map(&User.get_cached_by_nickname/1)
+
+    users
+    |> Enum.each(fn user ->
+      {:ok, delete_data, _} = Builder.delete(admin, user.ap_id)
+      Pipeline.common_pipeline(delete_data, local: true)
+    end)
 
     ModerationLog.insert_log(%{
       actor: admin,
@@ -392,29 +393,12 @@ def list_users(conn, params) do
       email: params["email"]
     }
 
-    with {:ok, users, count} <- Search.user(Map.merge(search_params, filters)),
+    with {:ok, users, count} <- Search.user(Map.merge(search_params, filters)) do
-         {:ok, users, count} <- filter_service_users(users, count),
+      json(
-         do:
+        conn,
-           conn
+        AccountView.render("index.json", users: users, count: count, page_size: page_size)
-           |> json(
-             AccountView.render("index.json",
-               users: users,
-               count: count,
-               page_size: page_size
-             )
       )
     end
-
-  defp filter_service_users(users, count) do
-    filtered_users = Enum.reject(users, &service_user?/1)
-    count = if Enum.any?(users, &service_user?/1), do: length(filtered_users), else: count
-
-    {:ok, filtered_users, count}
-  end
-
-  defp service_user?(user) do
-    String.match?(user.ap_id, ~r/.*\/relay$/) or
-      String.match?(user.ap_id, ~r/.*\/internal\/fetch$/)
   end
 
   @filters ~w(local external active deactivated is_admin is_moderator)
@@ -692,6 +676,18 @@ def force_password_reset(%{assigns: %{user: admin}} = conn, %{"nicknames" => nic
     json_response(conn, :no_content, "")
   end
 
+  @doc "Disable mfa for user's account."
+  def disable_mfa(conn, %{"nickname" => nickname}) do
+    case User.get_by_nickname(nickname) do
+      %User{} = user ->
+        MFA.disable(user)
+        json(conn, nickname)
+
+      _ ->
+        {:error, :not_found}
+    end
+  end
+
   @doc "Show a given user's credentials"
   def show_user_credentials(%{assigns: %{user: admin}} = conn, %{"nickname" => nickname}) do
     with %User{} = user <- User.get_cached_by_nickname_or_id(nickname) do
@@ -837,6 +833,16 @@ def list_statuses(%{assigns: %{user: _admin}} = conn, params) do
     |> render("index.json", %{activities: activities, as: :activity, skip_relationships: false})
   end
 
+  def status_show(conn, %{"id" => id}) do
+    with %Activity{} = activity <- Activity.get_by_id(id) do
+      conn
+      |> put_view(StatusView)
+      |> render("show.json", %{activity: activity})
+    else
+      _ -> errors(conn, {:error, :not_found})
+    end
+  end
+
   def status_update(%{assigns: %{user: admin}} = conn, %{"id" => id} = params) do
     with {:ok, activity} <- CommonAPI.update_activity_scope(id, params) do
       {:ok, sensitive} = Ecto.Type.cast(:boolean, params["sensitive"])

lib/pleroma/web/admin_api/search.ex

@@ -21,6 +21,7 @@ def user(params \\ %{}) do
     query =
       params
       |> Map.drop([:page, :page_size])
+      |> Map.put(:exclude_service_users, true)
       |> User.Query.build()
       |> order_by([u], u.nickname)
 

lib/pleroma/web/api_spec.ex

@@ -39,7 +39,12 @@ def spec do
               password: %OpenApiSpex.OAuthFlow{
                 authorizationUrl: "/oauth/authorize",
                 tokenUrl: "/oauth/token",
-                scopes: %{"read" => "read", "write" => "write", "follow" => "follow"}
+                scopes: %{
+                  "read" => "read",
+                  "write" => "write",
+                  "follow" => "follow",
+                  "push" => "push"
+                }
               }
             }
           }

lib/pleroma/web/api_spec/cast_and_validate.ex

@@ -0,0 +1,139 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2019-2020 Moxley Stratton, Mike Buhot <https://github.com/open-api-spex/open_api_spex>, MPL-2.0
+# Copyright © 2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.CastAndValidate do
+  @moduledoc """
+  This plug is based on [`OpenApiSpex.Plug.CastAndValidate`]
+  (https://github.com/open-api-spex/open_api_spex/blob/master/lib/open_api_spex/plug/cast_and_validate.ex).
+  The main difference is ignoring unexpected query params instead of throwing
+  an error and a config option (`[Pleroma.Web.ApiSpec.CastAndValidate, :strict]`)
+  to disable this behavior. Also, the default rendering error module
+  is `Pleroma.Web.ApiSpec.RenderError`.
+  """
+
+  @behaviour Plug
+
+  alias Plug.Conn
+
+  @impl Plug
+  def init(opts) do
+    opts
+    |> Map.new()
+    |> Map.put_new(:render_error, Pleroma.Web.ApiSpec.RenderError)
+  end
+
+  @impl Plug
+  def call(%{private: %{open_api_spex: private_data}} = conn, %{
+        operation_id: operation_id,
+        render_error: render_error
+      }) do
+    spec = private_data.spec
+    operation = private_data.operation_lookup[operation_id]
+
+    content_type =
+      case Conn.get_req_header(conn, "content-type") do
+        [header_value | _] ->
+          header_value
+          |> String.split(";")
+          |> List.first()
+
+        _ ->
+          nil
+      end
+
+    private_data = Map.put(private_data, :operation_id, operation_id)
+    conn = Conn.put_private(conn, :open_api_spex, private_data)
+
+    case cast_and_validate(spec, operation, conn, content_type, strict?()) do
+      {:ok, conn} ->
+        conn
+
+      {:error, reason} ->
+        opts = render_error.init(reason)
+
+        conn
+        |> render_error.call(opts)
+        |> Plug.Conn.halt()
+    end
+  end
+
+  def call(
+        %{
+          private: %{
+            phoenix_controller: controller,
+            phoenix_action: action,
+            open_api_spex: private_data
+          }
+        } = conn,
+        opts
+      ) do
+    operation =
+      case private_data.operation_lookup[{controller, action}] do
+        nil ->
+          operation_id = controller.open_api_operation(action).operationId
+          operation = private_data.operation_lookup[operation_id]
+
+          operation_lookup =
+            private_data.operation_lookup
+            |> Map.put({controller, action}, operation)
+
+          OpenApiSpex.Plug.Cache.adapter().put(
+            private_data.spec_module,
+            {private_data.spec, operation_lookup}
+          )
+
+          operation
+
+        operation ->
+          operation
+      end
+
+    if operation.operationId do
+      call(conn, Map.put(opts, :operation_id, operation.operationId))
+    else
+      raise "operationId was not found in action API spec"
+    end
+  end
+
+  def call(conn, opts), do: OpenApiSpex.Plug.CastAndValidate.call(conn, opts)
+
+  defp cast_and_validate(spec, operation, conn, content_type, true = _strict) do
+    OpenApiSpex.cast_and_validate(spec, operation, conn, content_type)
+  end
+
+  defp cast_and_validate(spec, operation, conn, content_type, false = _strict) do
+    case OpenApiSpex.cast_and_validate(spec, operation, conn, content_type) do
+      {:ok, conn} ->
+        {:ok, conn}
+
+      # Remove unexpected query params and cast/validate again
+      {:error, errors} ->
+        query_params =
+          Enum.reduce(errors, conn.query_params, fn
+            %{reason: :unexpected_field, name: name, path: [name]}, params ->
+              Map.delete(params, name)
+
+            %{reason: :invalid_enum, name: nil, path: path, value: value}, params ->
+              path = path |> Enum.reverse() |> tl() |> Enum.reverse() |> list_items_to_string()
+              update_in(params, path, &List.delete(&1, value))
+
+            _, params ->
+              params
+          end)
+
+        conn = %Conn{conn | query_params: query_params}
+        OpenApiSpex.cast_and_validate(spec, operation, conn, content_type)
+    end
+  end
+
+  defp list_items_to_string(list) do
+    Enum.map(list, fn
+      i when is_atom(i) -> to_string(i)
+      i -> i
+    end)
+  end
+
+  defp strict?, do: Pleroma.Config.get([__MODULE__, :strict], false)
+end

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

@@ -11,6 +11,7 @@ defmodule Pleroma.Web.ApiSpec.AccountOperation do
   alias Pleroma.Web.ApiSpec.Schemas.ActorType
   alias Pleroma.Web.ApiSpec.Schemas.ApiError
   alias Pleroma.Web.ApiSpec.Schemas.BooleanLike
+  alias Pleroma.Web.ApiSpec.Schemas.List
   alias Pleroma.Web.ApiSpec.Schemas.Status
   alias Pleroma.Web.ApiSpec.Schemas.VisibilityScope
 
@@ -646,28 +647,12 @@ defp mute_request do
     }
   end
 
-  defp list do
-    %Schema{
-      title: "List",
-      description: "Response schema for a list",
-      type: :object,
-      properties: %{
-        id: %Schema{type: :string},
-        title: %Schema{type: :string}
-      },
-      example: %{
-        "id" => "123",
-        "title" => "my list"
-      }
-    }
-  end
-
   defp array_of_lists do
     %Schema{
       title: "ArrayOfLists",
       description: "Response schema for lists",
       type: :array,
-      items: list(),
+      items: List,
       example: [
         %{"id" => "123", "title" => "my list"},
         %{"id" => "1337", "title" => "anotehr list"}

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

@@ -0,0 +1,61 @@
+# 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.ConversationOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.Conversation
+  alias Pleroma.Web.ApiSpec.Schemas.FlakeID
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["Conversations"],
+      summary: "Show conversation",
+      security: [%{"oAuth" => ["read:statuses"]}],
+      operationId: "ConversationController.index",
+      parameters: [
+        Operation.parameter(
+          :recipients,
+          :query,
+          %Schema{type: :array, items: FlakeID},
+          "Only return conversations with the given recipients (a list of user ids)"
+        )
+        | pagination_params()
+      ],
+      responses: %{
+        200 =>
+          Operation.response("Array of Conversation", "application/json", %Schema{
+            type: :array,
+            items: Conversation,
+            example: [Conversation.schema().example]
+          })
+      }
+    }
+  end
+
+  def mark_as_read_operation do
+    %Operation{
+      tags: ["Conversations"],
+      summary: "Mark as read",
+      operationId: "ConversationController.mark_as_read",
+      parameters: [
+        Operation.parameter(:id, :path, :string, "Conversation ID",
+          example: "123",
+          required: true
+        )
+      ],
+      security: [%{"oAuth" => ["write:conversations"]}],
+      responses: %{
+        200 => Operation.response("Conversation", "application/json", Conversation)
+      }
+    }
+  end
+end

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

@@ -0,0 +1,227 @@
+# 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.FilterOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["apps"],
+      summary: "View all filters",
+      operationId: "FilterController.index",
+      security: [%{"oAuth" => ["read:filters"]}],
+      responses: %{
+        200 => Operation.response("Filters", "application/json", array_of_filters())
+      }
+    }
+  end
+
+  def create_operation do
+    %Operation{
+      tags: ["apps"],
+      summary: "Create a filter",
+      operationId: "FilterController.create",
+      requestBody: Helpers.request_body("Parameters", create_request(), required: true),
+      security: [%{"oAuth" => ["write:filters"]}],
+      responses: %{200 => Operation.response("Filter", "application/json", filter())}
+    }
+  end
+
+  def show_operation do
+    %Operation{
+      tags: ["apps"],
+      summary: "View all filters",
+      parameters: [id_param()],
+      operationId: "FilterController.show",
+      security: [%{"oAuth" => ["read:filters"]}],
+      responses: %{
+        200 => Operation.response("Filter", "application/json", filter())
+      }
+    }
+  end
+
+  def update_operation do
+    %Operation{
+      tags: ["apps"],
+      summary: "Update a filter",
+      parameters: [id_param()],
+      operationId: "FilterController.update",
+      requestBody: Helpers.request_body("Parameters", update_request(), required: true),
+      security: [%{"oAuth" => ["write:filters"]}],
+      responses: %{
+        200 => Operation.response("Filter", "application/json", filter())
+      }
+    }
+  end
+
+  def delete_operation do
+    %Operation{
+      tags: ["apps"],
+      summary: "Remove a filter",
+      parameters: [id_param()],
+      operationId: "FilterController.delete",
+      security: [%{"oAuth" => ["write:filters"]}],
+      responses: %{
+        200 =>
+          Operation.response("Filter", "application/json", %Schema{
+            type: :object,
+            description: "Empty object"
+          })
+      }
+    }
+  end
+
+  defp id_param do
+    Operation.parameter(:id, :path, :string, "Filter ID", example: "123", required: true)
+  end
+
+  defp filter do
+    %Schema{
+      title: "Filter",
+      type: :object,
+      properties: %{
+        id: %Schema{type: :string},
+        phrase: %Schema{type: :string, description: "The text to be filtered"},
+        context: %Schema{
+          type: :array,
+          items: %Schema{type: :string, enum: ["home", "notifications", "public", "thread"]},
+          description: "The contexts in which the filter should be applied."
+        },
+        expires_at: %Schema{
+          type: :string,
+          format: :"date-time",
+          description:
+            "When the filter should no longer be applied. String (ISO 8601 Datetime), or null if the filter does not expire.",
+          nullable: true
+        },
+        irreversible: %Schema{
+          type: :boolean,
+          description:
+            "Should matching entities in home and notifications be dropped by the server?"
+        },
+        whole_word: %Schema{
+          type: :boolean,
+          description: "Should the filter consider word boundaries?"
+        }
+      },
+      example: %{
+        "id" => "5580",
+        "phrase" => "@twitter.com",
+        "context" => [
+          "home",
+          "notifications",
+          "public",
+          "thread"
+        ],
+        "whole_word" => false,
+        "expires_at" => nil,
+        "irreversible" => true
+      }
+    }
+  end
+
+  defp array_of_filters do
+    %Schema{
+      title: "ArrayOfFilters",
+      description: "Array of Filters",
+      type: :array,
+      items: filter(),
+      example: [
+        %{
+          "id" => "5580",
+          "phrase" => "@twitter.com",
+          "context" => [
+            "home",
+            "notifications",
+            "public",
+            "thread"
+          ],
+          "whole_word" => false,
+          "expires_at" => nil,
+          "irreversible" => true
+        },
+        %{
+          "id" => "6191",
+          "phrase" => ":eurovision2019:",
+          "context" => [
+            "home"
+          ],
+          "whole_word" => true,
+          "expires_at" => "2019-05-21T13:47:31.333Z",
+          "irreversible" => false
+        }
+      ]
+    }
+  end
+
+  defp create_request do
+    %Schema{
+      title: "FilterCreateRequest",
+      allOf: [
+        update_request(),
+        %Schema{
+          type: :object,
+          properties: %{
+            irreversible: %Schema{
+              type: :bolean,
+              description:
+                "Should the server irreversibly drop matching entities from home and notifications?",
+              default: false
+            }
+          }
+        }
+      ],
+      example: %{
+        "phrase" => "knights",
+        "context" => ["home"]
+      }
+    }
+  end
+
+  defp update_request do
+    %Schema{
+      title: "FilterUpdateRequest",
+      type: :object,
+      properties: %{
+        phrase: %Schema{type: :string, description: "The text to be filtered"},
+        context: %Schema{
+          type: :array,
+          items: %Schema{type: :string, enum: ["home", "notifications", "public", "thread"]},
+          description:
+            "Array of enumerable strings `home`, `notifications`, `public`, `thread`. At least one context must be specified."
+        },
+        irreversible: %Schema{
+          type: :bolean,
+          description:
+            "Should the server irreversibly drop matching entities from home and notifications?"
+        },
+        whole_word: %Schema{
+          type: :bolean,
+          description: "Consider word boundaries?",
+          default: true
+        }
+        # TODO: probably should implement filter expiration
+        # expires_in: %Schema{
+        #   type: :string,
+        #   format: :"date-time",
+        #   description:
+        #     "ISO 8601 Datetime for when the filter expires. Otherwise,
+        #  null for a filter that doesn't expire."
+        # }
+      },
+      required: [:phrase, :context],
+      example: %{
+        "phrase" => "knights",
+        "context" => ["home"]
+      }
+    }
+  end
+end

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

@@ -0,0 +1,65 @@
+# 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.FollowRequestOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.Account
+  alias Pleroma.Web.ApiSpec.Schemas.AccountRelationship
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["Follow Requests"],
+      summary: "Pending Follows",
+      security: [%{"oAuth" => ["read:follows", "follow"]}],
+      operationId: "FollowRequestController.index",
+      responses: %{
+        200 =>
+          Operation.response("Array of Account", "application/json", %Schema{
+            type: :array,
+            items: Account,
+            example: [Account.schema().example]
+          })
+      }
+    }
+  end
+
+  def authorize_operation do
+    %Operation{
+      tags: ["Follow Requests"],
+      summary: "Accept Follow",
+      operationId: "FollowRequestController.authorize",
+      parameters: [id_param()],
+      security: [%{"oAuth" => ["follow", "write:follows"]}],
+      responses: %{
+        200 => Operation.response("Relationship", "application/json", AccountRelationship)
+      }
+    }
+  end
+
+  def reject_operation do
+    %Operation{
+      tags: ["Follow Requests"],
+      summary: "Reject Follow",
+      operationId: "FollowRequestController.reject",
+      parameters: [id_param()],
+      security: [%{"oAuth" => ["follow", "write:follows"]}],
+      responses: %{
+        200 => Operation.response("Relationship", "application/json", AccountRelationship)
+      }
+    }
+  end
+
+  defp id_param do
+    Operation.parameter(:id, :path, :string, "Conversation ID",
+      example: "123",
+      required: true
+    )
+  end
+end

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

@@ -0,0 +1,169 @@
+# 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.InstanceOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def show_operation do
+    %Operation{
+      tags: ["Instance"],
+      summary: "Fetch instance",
+      description: "Information about the server",
+      operationId: "InstanceController.show",
+      responses: %{
+        200 => Operation.response("Instance", "application/json", instance())
+      }
+    }
+  end
+
+  def peers_operation do
+    %Operation{
+      tags: ["Instance"],
+      summary: "List of known hosts",
+      operationId: "InstanceController.peers",
+      responses: %{
+        200 => Operation.response("Array of domains", "application/json", array_of_domains())
+      }
+    }
+  end
+
+  defp instance do
+    %Schema{
+      type: :object,
+      properties: %{
+        uri: %Schema{type: :string, description: "The domain name of the instance"},
+        title: %Schema{type: :string, description: "The title of the website"},
+        description: %Schema{
+          type: :string,
+          description: "Admin-defined description of the Pleroma site"
+        },
+        version: %Schema{
+          type: :string,
+          description: "The version of Pleroma installed on the instance"
+        },
+        email: %Schema{
+          type: :string,
+          description: "An email that may be contacted for any inquiries",
+          format: :email
+        },
+        urls: %Schema{
+          type: :object,
+          description: "URLs of interest for clients apps",
+          properties: %{
+            streaming_api: %Schema{
+              type: :string,
+              description: "Websockets address for push streaming"
+            }
+          }
+        },
+        stats: %Schema{
+          type: :object,
+          description: "Statistics about how much information the instance contains",
+          properties: %{
+            user_count: %Schema{
+              type: :integer,
+              description: "Users registered on this instance"
+            },
+            status_count: %Schema{
+              type: :integer,
+              description: "Statuses authored by users on instance"
+            },
+            domain_count: %Schema{
+              type: :integer,
+              description: "Domains federated with this instance"
+            }
+          }
+        },
+        thumbnail: %Schema{
+          type: :string,
+          description: "Banner image for the website",
+          nullable: true
+        },
+        languages: %Schema{
+          type: :array,
+          items: %Schema{type: :string},
+          description: "Primary langauges of the website and its staff"
+        },
+        registrations: %Schema{type: :boolean, description: "Whether registrations are enabled"},
+        # Extra (not present in Mastodon):
+        max_toot_chars: %Schema{
+          type: :integer,
+          description: ": Posts character limit (CW/Subject included in the counter)"
+        },
+        poll_limits: %Schema{
+          type: :object,
+          description: "A map with poll limits for local polls",
+          properties: %{
+            max_options: %Schema{
+              type: :integer,
+              description: "Maximum number of options."
+            },
+            max_option_chars: %Schema{
+              type: :integer,
+              description: "Maximum number of characters per option."
+            },
+            min_expiration: %Schema{
+              type: :integer,
+              description: "Minimum expiration time (in seconds)."
+            },
+            max_expiration: %Schema{
+              type: :integer,
+              description: "Maximum expiration time (in seconds)."
+            }
+          }
+        },
+        upload_limit: %Schema{
+          type: :integer,
+          description: "File size limit of uploads (except for avatar, background, banner)"
+        },
+        avatar_upload_limit: %Schema{type: :integer, description: "The title of the website"},
+        background_upload_limit: %Schema{type: :integer, description: "The title of the website"},
+        banner_upload_limit: %Schema{type: :integer, description: "The title of the website"}
+      },
+      example: %{
+        "avatar_upload_limit" => 2_000_000,
+        "background_upload_limit" => 4_000_000,
+        "banner_upload_limit" => 4_000_000,
+        "description" => "A Pleroma instance, an alternative fediverse server",
+        "email" => "lain@lain.com",
+        "languages" => ["en"],
+        "max_toot_chars" => 5000,
+        "poll_limits" => %{
+          "max_expiration" => 31_536_000,
+          "max_option_chars" => 200,
+          "max_options" => 20,
+          "min_expiration" => 0
+        },
+        "registrations" => false,
+        "stats" => %{
+          "domain_count" => 2996,
+          "status_count" => 15_802,
+          "user_count" => 5
+        },
+        "thumbnail" => "https://lain.com/instance/thumbnail.jpeg",
+        "title" => "lain.com",
+        "upload_limit" => 16_000_000,
+        "uri" => "https://lain.com",
+        "urls" => %{
+          "streaming_api" => "wss://lain.com"
+        },
+        "version" => "2.7.2 (compatible; Pleroma 2.0.50-536-g25eec6d7-develop)"
+      }
+    }
+  end
+
+  defp array_of_domains do
+    %Schema{
+      type: :array,
+      items: %Schema{type: :string},
+      example: ["pleroma.site", "lain.com", "bikeshed.party"]
+    }
+  end
+end

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

@@ -0,0 +1,188 @@
+# 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.ListOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.Account
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+  alias Pleroma.Web.ApiSpec.Schemas.FlakeID
+  alias Pleroma.Web.ApiSpec.Schemas.List
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["Lists"],
+      summary: "Show user's lists",
+      description: "Fetch all lists that the user owns",
+      security: [%{"oAuth" => ["read:lists"]}],
+      operationId: "ListController.index",
+      responses: %{
+        200 => Operation.response("Array of List", "application/json", array_of_lists())
+      }
+    }
+  end
+
+  def create_operation do
+    %Operation{
+      tags: ["Lists"],
+      summary: "Create  a list",
+      description: "Fetch the list with the given ID. Used for verifying the title of a list.",
+      operationId: "ListController.create",
+      requestBody: create_update_request(),
+      security: [%{"oAuth" => ["write:lists"]}],
+      responses: %{
+        200 => Operation.response("List", "application/json", List),
+        400 => Operation.response("Error", "application/json", ApiError),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def show_operation do
+    %Operation{
+      tags: ["Lists"],
+      summary: "Show a single list",
+      description: "Fetch the list with the given ID. Used for verifying the title of a list.",
+      operationId: "ListController.show",
+      parameters: [id_param()],
+      security: [%{"oAuth" => ["read:lists"]}],
+      responses: %{
+        200 => Operation.response("List", "application/json", List),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def update_operation do
+    %Operation{
+      tags: ["Lists"],
+      summary: "Update a list",
+      description: "Change the title of a list",
+      operationId: "ListController.update",
+      parameters: [id_param()],
+      requestBody: create_update_request(),
+      security: [%{"oAuth" => ["write:lists"]}],
+      responses: %{
+        200 => Operation.response("List", "application/json", List),
+        422 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def delete_operation do
+    %Operation{
+      tags: ["Lists"],
+      summary: "Delete a list",
+      operationId: "ListController.delete",
+      parameters: [id_param()],
+      security: [%{"oAuth" => ["write:lists"]}],
+      responses: %{
+        200 => Operation.response("Empty object", "application/json", %Schema{type: :object})
+      }
+    }
+  end
+
+  def list_accounts_operation do
+    %Operation{
+      tags: ["Lists"],
+      summary: "View accounts in list",
+      operationId: "ListController.list_accounts",
+      parameters: [id_param()],
+      security: [%{"oAuth" => ["read:lists"]}],
+      responses: %{
+        200 =>
+          Operation.response("Array of Account", "application/json", %Schema{
+            type: :array,
+            items: Account
+          })
+      }
+    }
+  end
+
+  def add_to_list_operation do
+    %Operation{
+      tags: ["Lists"],
+      summary: "Add accounts to list",
+      description: "Add accounts to the given list.",
+      operationId: "ListController.add_to_list",
+      parameters: [id_param()],
+      requestBody: add_remove_accounts_request(),
+      security: [%{"oAuth" => ["write:lists"]}],
+      responses: %{
+        200 => Operation.response("Empty object", "application/json", %Schema{type: :object})
+      }
+    }
+  end
+
+  def remove_from_list_operation do
+    %Operation{
+      tags: ["Lists"],
+      summary: "Remove accounts from list",
+      operationId: "ListController.remove_from_list",
+      parameters: [id_param()],
+      requestBody: add_remove_accounts_request(),
+      security: [%{"oAuth" => ["write:lists"]}],
+      responses: %{
+        200 => Operation.response("Empty object", "application/json", %Schema{type: :object})
+      }
+    }
+  end
+
+  defp array_of_lists do
+    %Schema{
+      title: "ArrayOfLists",
+      description: "Response schema for lists",
+      type: :array,
+      items: List,
+      example: [
+        %{"id" => "123", "title" => "my list"},
+        %{"id" => "1337", "title" => "another list"}
+      ]
+    }
+  end
+
+  defp id_param do
+    Operation.parameter(:id, :path, :string, "List ID",
+      example: "123",
+      required: true
+    )
+  end
+
+  defp create_update_request do
+    request_body(
+      "Parameters",
+      %Schema{
+        description: "POST body for creating or updating a List",
+        type: :object,
+        properties: %{
+          title: %Schema{type: :string, description: "List title"}
+        },
+        required: [:title]
+      },
+      required: true
+    )
+  end
+
+  defp add_remove_accounts_request do
+    request_body(
+      "Parameters",
+      %Schema{
+        description: "POST body for adding/removing accounts to/from a List",
+        type: :object,
+        properties: %{
+          account_ids: %Schema{type: :array, description: "Array of account IDs", items: FlakeID}
+        },
+        required: [:account_ids]
+      },
+      required: true
+    )
+  end
+end

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

@@ -0,0 +1,140 @@
+# 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.MarkerOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["Markers"],
+      summary: "Get saved timeline position",
+      security: [%{"oAuth" => ["read:statuses"]}],
+      operationId: "MarkerController.index",
+      parameters: [
+        Operation.parameter(
+          :timeline,
+          :query,
+          %Schema{
+            type: :array,
+            items: %Schema{type: :string, enum: ["home", "notifications"]}
+          },
+          "Array of markers to fetch. If not provided, an empty object will be returned."
+        )
+      ],
+      responses: %{
+        200 => Operation.response("Marker", "application/json", response()),
+        403 => Operation.response("Error", "application/json", api_error())
+      }
+    }
+  end
+
+  def upsert_operation do
+    %Operation{
+      tags: ["Markers"],
+      summary: "Save position in timeline",
+      operationId: "MarkerController.upsert",
+      requestBody: Helpers.request_body("Parameters", upsert_request(), required: true),
+      security: [%{"oAuth" => ["follow", "write:blocks"]}],
+      responses: %{
+        200 => Operation.response("Marker", "application/json", response()),
+        403 => Operation.response("Error", "application/json", api_error())
+      }
+    }
+  end
+
+  defp marker do
+    %Schema{
+      title: "Marker",
+      description: "Schema for a marker",
+      type: :object,
+      properties: %{
+        last_read_id: %Schema{type: :string},
+        version: %Schema{type: :integer},
+        updated_at: %Schema{type: :string},
+        pleroma: %Schema{
+          type: :object,
+          properties: %{
+            unread_count: %Schema{type: :integer}
+          }
+        }
+      },
+      example: %{
+        "last_read_id" => "35098814",
+        "version" => 361,
+        "updated_at" => "2019-11-26T22:37:25.239Z",
+        "pleroma" => %{"unread_count" => 5}
+      }
+    }
+  end
+
+  defp response do
+    %Schema{
+      title: "MarkersResponse",
+      description: "Response schema for markers",
+      type: :object,
+      properties: %{
+        notifications: %Schema{allOf: [marker()], nullable: true},
+        home: %Schema{allOf: [marker()], nullable: true}
+      },
+      items: %Schema{type: :string},
+      example: %{
+        "notifications" => %{
+          "last_read_id" => "35098814",
+          "version" => 361,
+          "updated_at" => "2019-11-26T22:37:25.239Z",
+          "pleroma" => %{"unread_count" => 0}
+        },
+        "home" => %{
+          "last_read_id" => "103206604258487607",
+          "version" => 468,
+          "updated_at" => "2019-11-26T22:37:25.235Z",
+          "pleroma" => %{"unread_count" => 10}
+        }
+      }
+    }
+  end
+
+  defp upsert_request do
+    %Schema{
+      title: "MarkersUpsertRequest",
+      description: "Request schema for marker upsert",
+      type: :object,
+      properties: %{
+        notifications: %Schema{
+          type: :object,
+          properties: %{
+            last_read_id: %Schema{type: :string}
+          }
+        },
+        home: %Schema{
+          type: :object,
+          properties: %{
+            last_read_id: %Schema{type: :string}
+          }
+        }
+      },
+      example: %{
+        "home" => %{
+          "last_read_id" => "103194548672408537",
+          "version" => 462,
+          "updated_at" => "2019-11-24T19:39:39.337Z"
+        }
+      }
+    }
+  end
+
+  defp api_error do
+    %Schema{
+      type: :object,
+      properties: %{error: %Schema{type: :string}}
+    }
+  end
+end

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

@@ -0,0 +1,76 @@
+# 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.PollOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+  alias Pleroma.Web.ApiSpec.Schemas.FlakeID
+  alias Pleroma.Web.ApiSpec.Schemas.Poll
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def show_operation do
+    %Operation{
+      tags: ["Polls"],
+      summary: "View a poll",
+      security: [%{"oAuth" => ["read:statuses"]}],
+      parameters: [id_param()],
+      operationId: "PollController.show",
+      responses: %{
+        200 => Operation.response("Poll", "application/json", Poll),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def vote_operation do
+    %Operation{
+      tags: ["Polls"],
+      summary: "Vote on a poll",
+      parameters: [id_param()],
+      operationId: "PollController.vote",
+      requestBody: vote_request(),
+      security: [%{"oAuth" => ["write:statuses"]}],
+      responses: %{
+        200 => Operation.response("Poll", "application/json", Poll),
+        422 => Operation.response("Error", "application/json", ApiError),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  defp id_param do
+    Operation.parameter(:id, :path, FlakeID, "Poll ID",
+      example: "123",
+      required: true
+    )
+  end
+
+  defp vote_request do
+    request_body(
+      "Parameters",
+      %Schema{
+        type: :object,
+        properties: %{
+          choices: %Schema{
+            type: :array,
+            items: %Schema{type: :integer},
+            description: "Array of own votes containing index for each option (starting from 0)"
+          }
+        },
+        required: [:choices]
+      },
+      required: true,
+      example: %{
+        "choices" => [0, 1, 2]
+      }
+    )
+  end
+end

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

@@ -0,0 +1,96 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.ScheduledActivityOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+  alias Pleroma.Web.ApiSpec.Schemas.FlakeID
+  alias Pleroma.Web.ApiSpec.Schemas.ScheduledStatus
+
+  import Pleroma.Web.ApiSpec.Helpers
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def index_operation do
+    %Operation{
+      tags: ["Scheduled Statuses"],
+      summary: "View scheduled statuses",
+      security: [%{"oAuth" => ["read:statuses"]}],
+      parameters: pagination_params(),
+      operationId: "ScheduledActivity.index",
+      responses: %{
+        200 =>
+          Operation.response("Array of ScheduledStatus", "application/json", %Schema{
+            type: :array,
+            items: ScheduledStatus
+          })
+      }
+    }
+  end
+
+  def show_operation do
+    %Operation{
+      tags: ["Scheduled Statuses"],
+      summary: "View a single scheduled status",
+      security: [%{"oAuth" => ["read:statuses"]}],
+      parameters: [id_param()],
+      operationId: "ScheduledActivity.show",
+      responses: %{
+        200 => Operation.response("Scheduled Status", "application/json", ScheduledStatus),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def update_operation do
+    %Operation{
+      tags: ["Scheduled Statuses"],
+      summary: "Schedule a status",
+      operationId: "ScheduledActivity.update",
+      security: [%{"oAuth" => ["write:statuses"]}],
+      parameters: [id_param()],
+      requestBody:
+        request_body("Parameters", %Schema{
+          type: :object,
+          properties: %{
+            scheduled_at: %Schema{
+              type: :string,
+              format: :"date-time",
+              description:
+                "ISO 8601 Datetime at which the status will be published. Must be at least 5 minutes into the future."
+            }
+          }
+        }),
+      responses: %{
+        200 => Operation.response("Scheduled Status", "application/json", ScheduledStatus),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def delete_operation do
+    %Operation{
+      tags: ["Scheduled Statuses"],
+      summary: "Cancel a scheduled status",
+      security: [%{"oAuth" => ["write:statuses"]}],
+      parameters: [id_param()],
+      operationId: "ScheduledActivity.delete",
+      responses: %{
+        200 => Operation.response("Empty object", "application/json", %Schema{type: :object}),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  defp id_param do
+    Operation.parameter(:id, :path, FlakeID, "Poll ID",
+      example: "123",
+      required: true
+    )
+  end
+end

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

@@ -0,0 +1,188 @@
+# 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.SubscriptionOperation do
+  alias OpenApiSpex.Operation
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Helpers
+  alias Pleroma.Web.ApiSpec.Schemas.ApiError
+  alias Pleroma.Web.ApiSpec.Schemas.PushSubscription
+
+  def open_api_operation(action) do
+    operation = String.to_existing_atom("#{action}_operation")
+    apply(__MODULE__, operation, [])
+  end
+
+  def create_operation do
+    %Operation{
+      tags: ["Push Subscriptions"],
+      summary: "Subscribe to push notifications",
+      description:
+        "Add a Web Push API subscription to receive notifications. Each access token can have one push subscription. If you create a new subscription, the old subscription is deleted.",
+      operationId: "SubscriptionController.create",
+      security: [%{"oAuth" => ["push"]}],
+      requestBody: Helpers.request_body("Parameters", create_request(), required: true),
+      responses: %{
+        200 => Operation.response("Push Subscription", "application/json", PushSubscription),
+        400 => Operation.response("Error", "application/json", ApiError),
+        403 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def show_operation do
+    %Operation{
+      tags: ["Push Subscriptions"],
+      summary: "Get current subscription",
+      description: "View the PushSubscription currently associated with this access token.",
+      operationId: "SubscriptionController.show",
+      security: [%{"oAuth" => ["push"]}],
+      responses: %{
+        200 => Operation.response("Push Subscription", "application/json", PushSubscription),
+        403 => Operation.response("Error", "application/json", ApiError),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def update_operation do
+    %Operation{
+      tags: ["Push Subscriptions"],
+      summary: "Change types of notifications",
+      description:
+        "Updates the current push subscription. Only the data part can be updated. To change fundamentals, a new subscription must be created instead.",
+      operationId: "SubscriptionController.update",
+      security: [%{"oAuth" => ["push"]}],
+      requestBody: Helpers.request_body("Parameters", update_request(), required: true),
+      responses: %{
+        200 => Operation.response("Push Subscription", "application/json", PushSubscription),
+        403 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  def delete_operation do
+    %Operation{
+      tags: ["Push Subscriptions"],
+      summary: "Remove current subscription",
+      description: "Removes the current Web Push API subscription.",
+      operationId: "SubscriptionController.delete",
+      security: [%{"oAuth" => ["push"]}],
+      responses: %{
+        200 => Operation.response("Empty object", "application/json", %Schema{type: :object}),
+        403 => Operation.response("Error", "application/json", ApiError),
+        404 => Operation.response("Error", "application/json", ApiError)
+      }
+    }
+  end
+
+  defp create_request do
+    %Schema{
+      title: "SubscriptionCreateRequest",
+      description: "POST body for creating a push subscription",
+      type: :object,
+      properties: %{
+        subscription: %Schema{
+          type: :object,
+          properties: %{
+            endpoint: %Schema{
+              type: :string,
+              description: "Endpoint URL that is called when a notification event occurs."
+            },
+            keys: %Schema{
+              type: :object,
+              properties: %{
+                p256dh: %Schema{
+                  type: :string,
+                  description:
+                    "User agent public key. Base64 encoded string of public key of ECDH key using `prime256v1` curve."
+                },
+                auth: %Schema{
+                  type: :string,
+                  description: "Auth secret. Base64 encoded string of 16 bytes of random data."
+                }
+              },
+              required: [:p256dh, :auth]
+            }
+          },
+          required: [:endpoint, :keys]
+        },
+        data: %Schema{
+          type: :object,
+          properties: %{
+            alerts: %Schema{
+              type: :object,
+              properties: %{
+                follow: %Schema{type: :boolean, description: "Receive follow notifications?"},
+                favourite: %Schema{
+                  type: :boolean,
+                  description: "Receive favourite notifications?"
+                },
+                reblog: %Schema{type: :boolean, description: "Receive reblog notifications?"},
+                mention: %Schema{type: :boolean, description: "Receive mention notifications?"},
+                poll: %Schema{type: :boolean, description: "Receive poll notifications?"}
+              }
+            }
+          }
+        }
+      },
+      required: [:subscription],
+      example: %{
+        "subscription" => %{
+          "endpoint" => "https://example.com/example/1234",
+          "keys" => %{
+            "auth" => "8eDyX_uCN0XRhSbY5hs7Hg==",
+            "p256dh" =>
+              "BCIWgsnyXDv1VkhqL2P7YRBvdeuDnlwAPT2guNhdIoW3IP7GmHh1SMKPLxRf7x8vJy6ZFK3ol2ohgn_-0yP7QQA="
+          }
+        },
+        "data" => %{
+          "alerts" => %{
+            "follow" => true,
+            "mention" => true,
+            "poll" => false
+          }
+        }
+      }
+    }
+  end
+
+  defp update_request do
+    %Schema{
+      title: "SubscriptionUpdateRequest",
+      type: :object,
+      properties: %{
+        data: %Schema{
+          type: :object,
+          properties: %{
+            alerts: %Schema{
+              type: :object,
+              properties: %{
+                follow: %Schema{type: :boolean, description: "Receive follow notifications?"},
+                favourite: %Schema{
+                  type: :boolean,
+                  description: "Receive favourite notifications?"
+                },
+                reblog: %Schema{type: :boolean, description: "Receive reblog notifications?"},
+                mention: %Schema{type: :boolean, description: "Receive mention notifications?"},
+                poll: %Schema{type: :boolean, description: "Receive poll notifications?"}
+              }
+            }
+          }
+        }
+      },
+      example: %{
+        "data" => %{
+          "alerts" => %{
+            "follow" => true,
+            "favourite" => true,
+            "reblog" => true,
+            "mention" => true,
+            "poll" => true
+          }
+        }
+      }
+    }
+  end
+end

lib/pleroma/web/api_spec/render_error.ex

@@ -17,6 +17,9 @@ def init(opts), do: opts
   def call(conn, errors) do
     errors =
       Enum.map(errors, fn
+        %{name: nil, reason: :invalid_enum} = err ->
+          %OpenApiSpex.Cast.Error{err | name: err.value}
+
         %{name: nil} = err ->
           %OpenApiSpex.Cast.Error{err | name: List.last(err.path)}
 

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

@@ -0,0 +1,68 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.Attachment do
+  alias OpenApiSpex.Schema
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "Attachment",
+    description: "Represents a file or media attachment that can be added to a status.",
+    type: :object,
+    requried: [:id, :url, :preview_url],
+    properties: %{
+      id: %Schema{type: :string},
+      url: %Schema{
+        type: :string,
+        format: :uri,
+        description: "The location of the original full-size attachment"
+      },
+      remote_url: %Schema{
+        type: :string,
+        format: :uri,
+        description:
+          "The location of the full-size original attachment on the remote website. String (URL), or null if the attachment is local",
+        nullable: true
+      },
+      preview_url: %Schema{
+        type: :string,
+        format: :uri,
+        description: "The location of a scaled-down preview of the attachment"
+      },
+      text_url: %Schema{
+        type: :string,
+        format: :uri,
+        description: "A shorter URL for the attachment"
+      },
+      description: %Schema{
+        type: :string,
+        nullable: true,
+        description:
+          "Alternate text that describes what is in the media attachment, to be used for the visually impaired or when media attachments do not load"
+      },
+      type: %Schema{
+        type: :string,
+        enum: ["image", "video", "audio", "unknown"],
+        description: "The type of the attachment"
+      },
+      pleroma: %Schema{
+        type: :object,
+        properties: %{
+          mime_type: %Schema{type: :string, description: "mime type of the attachment"}
+        }
+      }
+    },
+    example: %{
+      id: "1638338801",
+      type: "image",
+      url: "someurl",
+      remote_url: "someurl",
+      preview_url: "someurl",
+      text_url: "someurl",
+      description: nil,
+      pleroma: %{mime_type: "image/png"}
+    }
+  })
+end

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

@@ -0,0 +1,41 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.Conversation do
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.Account
+  alias Pleroma.Web.ApiSpec.Schemas.Status
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "Conversation",
+    description: "Represents a conversation with \"direct message\" visibility.",
+    type: :object,
+    required: [:id, :accounts, :unread],
+    properties: %{
+      id: %Schema{type: :string},
+      accounts: %Schema{
+        type: :array,
+        items: Account,
+        description: "Participants in the conversation"
+      },
+      unread: %Schema{
+        type: :boolean,
+        description: "Is the conversation currently marked as unread?"
+      },
+      # last_status: Status
+      last_status: %Schema{
+        allOf: [Status],
+        description: "The last status in the conversation, to be used for optional display"
+      }
+    },
+    example: %{
+      "id" => "418450",
+      "unread" => true,
+      "accounts" => [Account.schema().example],
+      "last_status" => Status.schema().example
+    }
+  })
+end

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

@@ -0,0 +1,23 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.List do
+  alias OpenApiSpex.Schema
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "List",
+    description: "Represents a list of users",
+    type: :object,
+    properties: %{
+      id: %Schema{type: :string, description: "The internal database ID of the list"},
+      title: %Schema{type: :string, description: "The user-defined title of the list"}
+    },
+    example: %{
+      "id" => "12249",
+      "title" => "Friends"
+    }
+  })
+end

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

@@ -11,26 +11,72 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Poll do
 
   OpenApiSpex.schema(%{
     title: "Poll",
-    description: "Response schema for account custom fields",
+    description: "Represents a poll attached to a status",
     type: :object,
     properties: %{
       id: FlakeID,
-      expires_at: %Schema{type: :string, format: "date-time"},
+      expires_at: %Schema{
-      expired: %Schema{type: :boolean},
+        type: :string,
-      multiple: %Schema{type: :boolean},
+        format: :"date-time",
-      votes_count: %Schema{type: :integer},
+        nullable: true,
-      voted: %Schema{type: :boolean},
+        description: "When the poll ends"
-      emojis: %Schema{type: :array, items: Emoji},
+      },
+      expired: %Schema{type: :boolean, description: "Is the poll currently expired?"},
+      multiple: %Schema{
+        type: :boolean,
+        description: "Does the poll allow multiple-choice answers?"
+      },
+      votes_count: %Schema{
+        type: :integer,
+        nullable: true,
+        description: "How many votes have been received. Number, or null if `multiple` is false."
+      },
+      voted: %Schema{
+        type: :boolean,
+        nullable: true,
+        description:
+          "When called with a user token, has the authorized user voted? Boolean, or null if no current user."
+      },
+      emojis: %Schema{
+        type: :array,
+        items: Emoji,
+        description: "Custom emoji to be used for rendering poll options."
+      },
       options: %Schema{
         type: :array,
         items: %Schema{
+          title: "PollOption",
           type: :object,
           properties: %{
             title: %Schema{type: :string},
             votes_count: %Schema{type: :integer}
           }
+        },
+        description: "Possible answers for the poll."
       }
+    },
+    example: %{
+      id: "34830",
+      expires_at: "2019-12-05T04:05:08.302Z",
+      expired: true,
+      multiple: false,
+      votes_count: 10,
+      voters_count: nil,
+      voted: true,
+      own_votes: [
+        1
+      ],
+      options: [
+        %{
+          title: "accept",
+          votes_count: 6
+        },
+        %{
+          title: "deny",
+          votes_count: 4
         }
+      ],
+      emojis: []
     }
   })
 end

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

@@ -0,0 +1,66 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.ApiSpec.Schemas.PushSubscription do
+  alias OpenApiSpex.Schema
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "PushSubscription",
+    description: "Response schema for a push subscription",
+    type: :object,
+    properties: %{
+      id: %Schema{
+        anyOf: [%Schema{type: :string}, %Schema{type: :integer}],
+        description: "The id of the push subscription in the database."
+      },
+      endpoint: %Schema{type: :string, description: "Where push alerts will be sent to."},
+      server_key: %Schema{type: :string, description: "The streaming server's VAPID key."},
+      alerts: %Schema{
+        type: :object,
+        description: "Which alerts should be delivered to the endpoint.",
+        properties: %{
+          follow: %Schema{
+            type: :boolean,
+            description: "Receive a push notification when someone has followed you?"
+          },
+          favourite: %Schema{
+            type: :boolean,
+            description:
+              "Receive a push notification when a status you created has been favourited by someone else?"
+          },
+          reblog: %Schema{
+            type: :boolean,
+            description:
+              "Receive a push notification when a status you created has been boosted by someone else?"
+          },
+          mention: %Schema{
+            type: :boolean,
+            description:
+              "Receive a push notification when someone else has mentioned you in a status?"
+          },
+          poll: %Schema{
+            type: :boolean,
+            description:
+              "Receive a push notification when a poll you voted in or created has ended? "
+          }
+        }
+      }
+    },
+    example: %{
+      "id" => "328_183",
+      "endpoint" => "https://yourdomain.example/listener",
+      "alerts" => %{
+        "follow" => true,
+        "favourite" => true,
+        "reblog" => true,
+        "mention" => true,
+        "poll" => true
+      },
+      "server_key" =>
+        "BCk-QqERU0q-CfYZjcuB6lnyyOYfJ2AifKqfeGIm7Z-HiTU5T9eTG5GxVA0_OH5mMlI4UkkDTpaZwozy0TzdZ2M="
+    }
+  })
+end

lib/pleroma/web/api_spec/schemas/scheduled_status.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.Web.ApiSpec.Schemas.ScheduledStatus do
+  alias OpenApiSpex.Schema
+  alias Pleroma.Web.ApiSpec.Schemas.Attachment
+  alias Pleroma.Web.ApiSpec.Schemas.Poll
+  alias Pleroma.Web.ApiSpec.Schemas.VisibilityScope
+
+  require OpenApiSpex
+
+  OpenApiSpex.schema(%{
+    title: "ScheduledStatus",
+    description: "Represents a status that will be published at a future scheduled date.",
+    type: :object,
+    required: [:id, :scheduled_at, :params],
+    properties: %{
+      id: %Schema{type: :string},
+      scheduled_at: %Schema{type: :string, format: :"date-time"},
+      media_attachments: %Schema{type: :array, items: Attachment},
+      params: %Schema{
+        type: :object,
+        required: [:text, :visibility],
+        properties: %{
+          text: %Schema{type: :string, nullable: true},
+          media_ids: %Schema{type: :array, nullable: true, items: %Schema{type: :string}},
+          sensitive: %Schema{type: :boolean, nullable: true},
+          spoiler_text: %Schema{type: :string, nullable: true},
+          visibility: %Schema{type: VisibilityScope, nullable: true},
+          scheduled_at: %Schema{type: :string, format: :"date-time", nullable: true},
+          poll: %Schema{type: Poll, nullable: true},
+          in_reply_to_id: %Schema{type: :string, nullable: true}
+        }
+      }
+    },
+    example: %{
+      id: "3221",
+      scheduled_at: "2019-12-05T12:33:01.000Z",
+      params: %{
+        text: "test content",
+        media_ids: nil,
+        sensitive: nil,
+        spoiler_text: nil,
+        visibility: nil,
+        scheduled_at: nil,
+        poll: nil,
+        idempotency: nil,
+        in_reply_to_id: nil
+      },
+      media_attachments: [Attachment.schema().example]
+    }
+  })
+end

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

@@ -5,6 +5,7 @@
 defmodule Pleroma.Web.ApiSpec.Schemas.Status do
   alias OpenApiSpex.Schema
   alias Pleroma.Web.ApiSpec.Schemas.Account
+  alias Pleroma.Web.ApiSpec.Schemas.Attachment
   alias Pleroma.Web.ApiSpec.Schemas.Emoji
   alias Pleroma.Web.ApiSpec.Schemas.FlakeID
   alias Pleroma.Web.ApiSpec.Schemas.Poll
@@ -50,22 +51,7 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Status do
       language: %Schema{type: :string, nullable: true},
       media_attachments: %Schema{
         type: :array,
-        items: %Schema{
+        items: Attachment
-          type: :object,
-          properties: %{
-            id: %Schema{type: :string},
-            url: %Schema{type: :string, format: :uri},
-            remote_url: %Schema{type: :string, format: :uri},
-            preview_url: %Schema{type: :string, format: :uri},
-            text_url: %Schema{type: :string, format: :uri},
-            description: %Schema{type: :string},
-            type: %Schema{type: :string, enum: ["image", "video", "audio", "unknown"]},
-            pleroma: %Schema{
-              type: :object,
-              properties: %{mime_type: %Schema{type: :string}}
-            }
-          }
-        }
       },
       mentions: %Schema{
         type: :array,
@@ -86,7 +72,12 @@ defmodule Pleroma.Web.ApiSpec.Schemas.Status do
         properties: %{
           content: %Schema{type: :object, additionalProperties: %Schema{type: :string}},
           conversation_id: %Schema{type: :integer},
-          direct_conversation_id: %Schema{type: :string, nullable: true},
+          direct_conversation_id: %Schema{
+            type: :integer,
+            nullable: true,
+            description:
+              "The ID of the Mastodon direct message conversation the status is associated with (if any)"
+          },
           emoji_reactions: %Schema{
             type: :array,
             items: %Schema{

lib/pleroma/web/auth/pleroma_authenticator.ex

@@ -19,8 +19,8 @@ def get_user(%Plug.Conn{} = conn) do
          {_, true} <- {:checkpw, AuthenticationPlug.checkpw(password, user.password_hash)} do
       {:ok, user}
     else
-      error ->
+      {:error, _reason} = error -> error
-        {:error, error}
+      error -> {:error, error}
     end
   end
 

lib/pleroma/web/auth/totp_authenticator.ex

@@ -0,0 +1,45 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.Auth.TOTPAuthenticator do
+  alias Comeonin.Pbkdf2
+  alias Pleroma.MFA
+  alias Pleroma.MFA.TOTP
+  alias Pleroma.User
+
+  @doc "Verify code or check backup code."
+  @spec verify(String.t(), User.t()) ::
+          {:ok, :pass} | {:error, :invalid_token | :invalid_secret_and_token}
+  def verify(
+        token,
+        %User{
+          multi_factor_authentication_settings:
+            %{enabled: true, totp: %{secret: secret, confirmed: true}} = _
+        } = _user
+      )
+      when is_binary(token) and byte_size(token) > 0 do
+    TOTP.validate_token(secret, token)
+  end
+
+  def verify(_, _), do: {:error, :invalid_token}
+
+  @spec verify_recovery_code(User.t(), String.t()) ::
+          {:ok, :pass} | {:error, :invalid_token}
+  def verify_recovery_code(
+        %User{multi_factor_authentication_settings: %{enabled: true, backup_codes: codes}} = user,
+        code
+      )
+      when is_list(codes) and is_binary(code) do
+    hash_code = Enum.find(codes, fn hash -> Pbkdf2.checkpw(code, hash) end)
+
+    if hash_code do
+      MFA.invalidate_backup_code(user, hash_code)
+      {:ok, :pass}
+    else
+      {:error, :invalid_token}
+    end
+  end
+
+  def verify_recovery_code(_, _), do: {:error, :invalid_token}
+end

lib/pleroma/web/common_api/common_api.ex

@@ -87,8 +87,8 @@ def delete(activity_id, user) do
            {:find_activity, Activity.get_by_id_with_object(activity_id)},
          %Object{} = object <- Object.normalize(activity),
          true <- User.superuser?(user) || user.ap_id == object.data["actor"],
-         {:ok, _} <- unpin(activity_id, user),
+         {:ok, delete_data, _} <- Builder.delete(user, object.data["id"]),
-         {:ok, delete} <- ActivityPub.delete(object) do
+         {:ok, delete, _} <- Pipeline.common_pipeline(delete_data, local: true) do
       {:ok, delete}
     else
       {:find_activity, _} -> {:error, :not_found}

lib/pleroma/web/common_api/utils.ex

@@ -402,6 +402,7 @@ defp shortname(name) do
     end
   end
 
+  @spec confirm_current_password(User.t(), String.t()) :: {:ok, User.t()} | {:error, String.t()}
   def confirm_current_password(user, password) do
     with %User{local: true} = db_user <- User.get_cached_by_id(user.id),
          true <- AuthenticationPlug.checkpw(password, db_user.password_hash) do

lib/pleroma/web/feed/user_controller.ex

@@ -27,7 +27,7 @@ def feed_redirect(%{assigns: %{format: format}} = conn, _params)
       when format in ["json", "activity+json"] do
     with %{halted: false} = conn <-
            Pleroma.Plugs.EnsureAuthenticatedPlug.call(conn,
-             unless_func: &Pleroma.Web.FederatingPlug.federating?/0
+             unless_func: &Pleroma.Web.FederatingPlug.federating?/1
            ) do
       ActivityPubController.call(conn, :user)
     end

lib/pleroma/web/mastodon_api/controllers/account_controller.ex

@@ -27,7 +27,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountController do
   alias Pleroma.Web.OAuth.Token
   alias Pleroma.Web.TwitterAPI.TwitterAPI
 
-  plug(OpenApiSpex.Plug.CastAndValidate, render_error: Pleroma.Web.ApiSpec.RenderError)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
 
   plug(:skip_plug, [OAuthScopesPlug, EnsurePublicOrAuthenticatedPlug] when action == :create)
 

lib/pleroma/web/mastodon_api/controllers/app_controller.ex

@@ -22,7 +22,7 @@ defmodule Pleroma.Web.MastodonAPI.AppController do
 
   plug(OAuthScopesPlug, %{scopes: ["read"]} when action == :verify_credentials)
 
-  plug(OpenApiSpex.Plug.CastAndValidate)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
 
   @local_mastodon_name "Mastodon-Local"
 

lib/pleroma/web/mastodon_api/controllers/conversation_controller.ex

@@ -13,9 +13,12 @@ defmodule Pleroma.Web.MastodonAPI.ConversationController do
 
   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
 
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   plug(OAuthScopesPlug, %{scopes: ["read:statuses"]} when action == :index)
   plug(OAuthScopesPlug, %{scopes: ["write:conversations"]} when action != :index)
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.ConversationOperation
+
   @doc "GET /api/v1/conversations"
   def index(%{assigns: %{user: user}} = conn, params) do
     participations = Participation.for_user_with_last_activity_id(user, params)
@@ -26,7 +29,7 @@ def index(%{assigns: %{user: user}} = conn, params) do
   end
 
   @doc "POST /api/v1/conversations/:id/read"
-  def mark_as_read(%{assigns: %{user: user}} = conn, %{"id" => participation_id}) do
+  def mark_as_read(%{assigns: %{user: user}} = conn, %{id: participation_id}) do
     with %Participation{} = participation <-
            Repo.get_by(Participation, id: participation_id, user_id: user.id),
          {:ok, participation} <- Participation.mark_as_read(participation) do

lib/pleroma/web/mastodon_api/controllers/custom_emoji_controller.ex

@@ -5,7 +5,7 @@
 defmodule Pleroma.Web.MastodonAPI.CustomEmojiController do
   use Pleroma.Web, :controller
 
-  plug(OpenApiSpex.Plug.CastAndValidate)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
 
   plug(
     :skip_plug,

lib/pleroma/web/mastodon_api/controllers/domain_block_controller.ex

@@ -8,7 +8,7 @@ defmodule Pleroma.Web.MastodonAPI.DomainBlockController do
   alias Pleroma.Plugs.OAuthScopesPlug
   alias Pleroma.User
 
-  plug(OpenApiSpex.Plug.CastAndValidate)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.DomainBlockOperation
 
   plug(

lib/pleroma/web/mastodon_api/controllers/filter_controller.ex

@@ -10,6 +10,7 @@ defmodule Pleroma.Web.MastodonAPI.FilterController do
 
   @oauth_read_actions [:show, :index]
 
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   plug(OAuthScopesPlug, %{scopes: ["read:filters"]} when action in @oauth_read_actions)
 
   plug(
@@ -17,60 +18,60 @@ defmodule Pleroma.Web.MastodonAPI.FilterController do
     %{scopes: ["write:filters"]} when action not in @oauth_read_actions
   )
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.FilterOperation
+
   @doc "GET /api/v1/filters"
   def index(%{assigns: %{user: user}} = conn, _) do
     filters = Filter.get_filters(user)
 
-    render(conn, "filters.json", filters: filters)
+    render(conn, "index.json", filters: filters)
   end
 
   @doc "POST /api/v1/filters"
-  def create(
+  def create(%{assigns: %{user: user}, body_params: params} = conn, _) do
-        %{assigns: %{user: user}} = conn,
-        %{"phrase" => phrase, "context" => context} = params
-      ) do
     query = %Filter{
       user_id: user.id,
-      phrase: phrase,
+      phrase: params.phrase,
-      context: context,
+      context: params.context,
-      hide: Map.get(params, "irreversible", false),
+      hide: params.irreversible,
-      whole_word: Map.get(params, "boolean", true)
+      whole_word: params.whole_word
-      # expires_at
+      # TODO: support `expires_in` parameter (as in Mastodon API)
     }
 
     {:ok, response} = Filter.create(query)
 
-    render(conn, "filter.json", filter: response)
+    render(conn, "show.json", filter: response)
   end
 
   @doc "GET /api/v1/filters/:id"
-  def show(%{assigns: %{user: user}} = conn, %{"id" => filter_id}) do
+  def show(%{assigns: %{user: user}} = conn, %{id: filter_id}) do
     filter = Filter.get(filter_id, user)
 
-    render(conn, "filter.json", filter: filter)
+    render(conn, "show.json", filter: filter)
   end
 
   @doc "PUT /api/v1/filters/:id"
   def update(
-        %{assigns: %{user: user}} = conn,
+        %{assigns: %{user: user}, body_params: params} = conn,
-        %{"phrase" => phrase, "context" => context, "id" => filter_id} = params
+        %{id: filter_id}
       ) do
-    query = %Filter{
+    params =
-      user_id: user.id,
+      params
-      filter_id: filter_id,
+      |> Map.delete(:irreversible)
-      phrase: phrase,
+      |> Map.put(:hide, params[:irreversible])
-      context: context,
+      |> Enum.reject(fn {_key, value} -> is_nil(value) end)
-      hide: Map.get(params, "irreversible", nil),
+      |> Map.new()
-      whole_word: Map.get(params, "boolean", true)
-      # expires_at
-    }
 
-    {:ok, response} = Filter.update(query)
+    # TODO: support `expires_in` parameter (as in Mastodon API)
-    render(conn, "filter.json", filter: response)
+
+    with %Filter{} = filter <- Filter.get(filter_id, user),
+         {:ok, %Filter{} = filter} <- Filter.update(filter, params) do
+      render(conn, "show.json", filter: filter)
+    end
   end
 
   @doc "DELETE /api/v1/filters/:id"
-  def delete(%{assigns: %{user: user}} = conn, %{"id" => filter_id}) do
+  def delete(%{assigns: %{user: user}} = conn, %{id: filter_id}) do
     query = %Filter{
       user_id: user.id,
       filter_id: filter_id

lib/pleroma/web/mastodon_api/controllers/follow_request_controller.ex

@@ -10,6 +10,7 @@ defmodule Pleroma.Web.MastodonAPI.FollowRequestController do
   alias Pleroma.Web.CommonAPI
 
   plug(:put_view, Pleroma.Web.MastodonAPI.AccountView)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   plug(:assign_follower when action != :index)
 
   action_fallback(:errors)
@@ -21,6 +22,8 @@ defmodule Pleroma.Web.MastodonAPI.FollowRequestController do
     %{scopes: ["follow", "write:follows"]} when action != :index
   )
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.FollowRequestOperation
+
   @doc "GET /api/v1/follow_requests"
   def index(%{assigns: %{user: followed}} = conn, _params) do
     follow_requests = User.get_follow_requests(followed)
@@ -42,7 +45,7 @@ def reject(%{assigns: %{user: followed, follower: follower}} = conn, _params) do
     end
   end
 
-  defp assign_follower(%{params: %{"id" => id}} = conn, _) do
+  defp assign_follower(%{params: %{id: id}} = conn, _) do
     case User.get_cached_by_id(id) do
       %User{} = follower -> assign(conn, :follower, follower)
       nil -> Pleroma.Web.MastodonAPI.FallbackController.call(conn, {:error, :not_found}) |> halt()

lib/pleroma/web/mastodon_api/controllers/instance_controller.ex

@@ -5,12 +5,16 @@
 defmodule Pleroma.Web.MastodonAPI.InstanceController do
   use Pleroma.Web, :controller
 
+  plug(OpenApiSpex.Plug.CastAndValidate)
+
   plug(
     :skip_plug,
     [Pleroma.Plugs.OAuthScopesPlug, Pleroma.Plugs.EnsurePublicOrAuthenticatedPlug]
     when action in [:show, :peers]
   )
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.InstanceOperation
+
   @doc "GET /api/v1/instance"
   def show(conn, _params) do
     render(conn, "show.json")

lib/pleroma/web/mastodon_api/controllers/list_controller.ex

@@ -9,20 +9,17 @@ defmodule Pleroma.Web.MastodonAPI.ListController do
   alias Pleroma.User
   alias Pleroma.Web.MastodonAPI.AccountView
 
-  plug(:list_by_id_and_user when action not in [:index, :create])
-
   @oauth_read_actions [:index, :show, :list_accounts]
 
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+  plug(:list_by_id_and_user when action not in [:index, :create])
   plug(OAuthScopesPlug, %{scopes: ["read:lists"]} when action in @oauth_read_actions)
-
+  plug(OAuthScopesPlug, %{scopes: ["write:lists"]} when action not in @oauth_read_actions)
-  plug(
-    OAuthScopesPlug,
-    %{scopes: ["write:lists"]}
-    when action not in @oauth_read_actions
-  )
 
   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.ListOperation
+
   # GET /api/v1/lists
   def index(%{assigns: %{user: user}} = conn, opts) do
     lists = Pleroma.List.for_user(user, opts)
@@ -30,7 +27,7 @@ def index(%{assigns: %{user: user}} = conn, opts) do
   end
 
   # POST /api/v1/lists
-  def create(%{assigns: %{user: user}} = conn, %{"title" => title}) do
+  def create(%{assigns: %{user: user}, body_params: %{title: title}} = conn, _) do
     with {:ok, %Pleroma.List{} = list} <- Pleroma.List.create(title, user) do
       render(conn, "show.json", list: list)
     end
@@ -42,7 +39,7 @@ def show(%{assigns: %{list: list}} = conn, _) do
   end
 
   # PUT /api/v1/lists/:id
-  def update(%{assigns: %{list: list}} = conn, %{"title" => title}) do
+  def update(%{assigns: %{list: list}, body_params: %{title: title}} = conn, _) do
     with {:ok, list} <- Pleroma.List.rename(list, title) do
       render(conn, "show.json", list: list)
     end
@@ -65,7 +62,7 @@ def list_accounts(%{assigns: %{user: user, list: list}} = conn, _) do
   end
 
   # POST /api/v1/lists/:id/accounts
-  def add_to_list(%{assigns: %{list: list}} = conn, %{"account_ids" => account_ids}) do
+  def add_to_list(%{assigns: %{list: list}, body_params: %{account_ids: account_ids}} = conn, _) do
     Enum.each(account_ids, fn account_id ->
       with %User{} = followed <- User.get_cached_by_id(account_id) do
         Pleroma.List.follow(list, followed)
@@ -76,7 +73,10 @@ def add_to_list(%{assigns: %{list: list}} = conn, %{"account_ids" => account_ids
   end
 
   # DELETE /api/v1/lists/:id/accounts
-  def remove_from_list(%{assigns: %{list: list}} = conn, %{"account_ids" => account_ids}) do
+  def remove_from_list(
+        %{assigns: %{list: list}, body_params: %{account_ids: account_ids}} = conn,
+        _
+      ) do
     Enum.each(account_ids, fn account_id ->
       with %User{} = followed <- User.get_cached_by_id(account_id) do
         Pleroma.List.unfollow(list, followed)
@@ -86,7 +86,7 @@ def remove_from_list(%{assigns: %{list: list}} = conn, %{"account_ids" => accoun
     json(conn, %{})
   end
 
-  defp list_by_id_and_user(%{assigns: %{user: user}, params: %{"id" => id}} = conn, _) do
+  defp list_by_id_and_user(%{assigns: %{user: user}, params: %{id: id}} = conn, _) do
     case Pleroma.List.get(id, user) do
       %Pleroma.List{} = list -> assign(conn, :list, list)
       nil -> conn |> render_error(:not_found, "List not found") |> halt()

lib/pleroma/web/mastodon_api/controllers/marker_controller.ex

@@ -6,6 +6,8 @@ defmodule Pleroma.Web.MastodonAPI.MarkerController do
   use Pleroma.Web, :controller
   alias Pleroma.Plugs.OAuthScopesPlug
 
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+
   plug(
     OAuthScopesPlug,
     %{scopes: ["read:statuses"]}
@@ -16,14 +18,18 @@ defmodule Pleroma.Web.MastodonAPI.MarkerController do
 
   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.MarkerOperation
+
   # GET /api/v1/markers
   def index(%{assigns: %{user: user}} = conn, params) do
-    markers = Pleroma.Marker.get_markers(user, params["timeline"])
+    markers = Pleroma.Marker.get_markers(user, params[:timeline])
     render(conn, "markers.json", %{markers: markers})
   end
 
   # POST /api/v1/markers
-  def upsert(%{assigns: %{user: user}} = conn, params) do
+  def upsert(%{assigns: %{user: user}, body_params: params} = conn, _) do
+    params = Map.new(params, fn {key, value} -> {to_string(key), value} end)
+
     with {:ok, result} <- Pleroma.Marker.upsert(user, params),
          markers <- Map.values(result) do
       render(conn, "markers.json", %{markers: markers})

lib/pleroma/web/mastodon_api/controllers/notification_controller.ex

@@ -13,7 +13,7 @@ defmodule Pleroma.Web.MastodonAPI.NotificationController do
 
   @oauth_read_actions [:show, :index]
 
-  plug(OpenApiSpex.Plug.CastAndValidate, render_error: Pleroma.Web.ApiSpec.RenderError)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
 
   plug(
     OAuthScopesPlug,

lib/pleroma/web/mastodon_api/controllers/poll_controller.ex

@@ -15,6 +15,8 @@ defmodule Pleroma.Web.MastodonAPI.PollController do
 
   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
 
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+
   plug(
     OAuthScopesPlug,
     %{scopes: ["read:statuses"], fallback: :proceed_unauthenticated} when action == :show
@@ -22,8 +24,10 @@ defmodule Pleroma.Web.MastodonAPI.PollController do
 
   plug(OAuthScopesPlug, %{scopes: ["write:statuses"]} when action == :vote)
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.PollOperation
+
   @doc "GET /api/v1/polls/:id"
-  def show(%{assigns: %{user: user}} = conn, %{"id" => id}) do
+  def show(%{assigns: %{user: user}} = conn, %{id: id}) do
     with %Object{} = object <- Object.get_by_id_and_maybe_refetch(id, interval: 60),
          %Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),
          true <- Visibility.visible_for_user?(activity, user) do
@@ -35,7 +39,7 @@ def show(%{assigns: %{user: user}} = conn, %{"id" => id}) do
   end
 
   @doc "POST /api/v1/polls/:id/votes"
-  def vote(%{assigns: %{user: user}} = conn, %{"id" => id, "choices" => choices}) do
+  def vote(%{assigns: %{user: user}, body_params: %{choices: choices}} = conn, %{id: id}) do
     with %Object{data: %{"type" => "Question"}} = object <- Object.get_by_id(id),
          %Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),
          true <- Visibility.visible_for_user?(activity, user),

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

@@ -9,7 +9,7 @@ defmodule Pleroma.Web.MastodonAPI.ReportController do
 
   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
 
-  plug(OpenApiSpex.Plug.CastAndValidate, render_error: Pleroma.Web.ApiSpec.RenderError)
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   plug(OAuthScopesPlug, %{scopes: ["write:reports"]} when action == :create)
 
   defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.ReportOperation

lib/pleroma/web/mastodon_api/controllers/scheduled_activity_controller.ex

@@ -11,17 +11,21 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityController do
   alias Pleroma.ScheduledActivity
   alias Pleroma.Web.MastodonAPI.MastodonAPI
 
-  plug(:assign_scheduled_activity when action != :index)
-
   @oauth_read_actions [:show, :index]
 
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
   plug(OAuthScopesPlug, %{scopes: ["read:statuses"]} when action in @oauth_read_actions)
   plug(OAuthScopesPlug, %{scopes: ["write:statuses"]} when action not in @oauth_read_actions)
+  plug(:assign_scheduled_activity when action != :index)
 
   action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
 
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.ScheduledActivityOperation
+
   @doc "GET /api/v1/scheduled_statuses"
   def index(%{assigns: %{user: user}} = conn, params) do
+    params = Map.new(params, fn {key, value} -> {to_string(key), value} end)
+
     with scheduled_activities <- MastodonAPI.get_scheduled_activities(user, params) do
       conn
       |> add_link_headers(scheduled_activities)
@@ -35,7 +39,7 @@ def show(%{assigns: %{scheduled_activity: scheduled_activity}} = conn, _params)
   end
 
   @doc "PUT /api/v1/scheduled_statuses/:id"
-  def update(%{assigns: %{scheduled_activity: scheduled_activity}} = conn, params) do
+  def update(%{assigns: %{scheduled_activity: scheduled_activity}, body_params: params} = conn, _) do
     with {:ok, scheduled_activity} <- ScheduledActivity.update(scheduled_activity, params) do
       render(conn, "show.json", scheduled_activity: scheduled_activity)
     end
@@ -48,7 +52,7 @@ def delete(%{assigns: %{scheduled_activity: scheduled_activity}} = conn, _params
     end
   end
 
-  defp assign_scheduled_activity(%{assigns: %{user: user}, params: %{"id" => id}} = conn, _) do
+  defp assign_scheduled_activity(%{assigns: %{user: user}, params: %{id: id}} = conn, _) do
     case ScheduledActivity.get(user, id) do
       %ScheduledActivity{} = activity -> assign(conn, :scheduled_activity, activity)
       nil -> Pleroma.Web.MastodonAPI.FallbackController.call(conn, {:error, :not_found}) |> halt()

lib/pleroma/web/mastodon_api/controllers/subscription_controller.ex

@@ -11,14 +11,16 @@ defmodule Pleroma.Web.MastodonAPI.SubscriptionController do
 
   action_fallback(:errors)
 
+  plug(Pleroma.Web.ApiSpec.CastAndValidate)
+  plug(:restrict_push_enabled)
   plug(Pleroma.Plugs.OAuthScopesPlug, %{scopes: ["push"]})
 
-  plug(:restrict_push_enabled)
+  defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.SubscriptionOperation
 
   # Creates PushSubscription
   # POST /api/v1/push/subscription
   #
-  def create(%{assigns: %{user: user, token: token}} = conn, params) do
+  def create(%{assigns: %{user: user, token: token}, body_params: params} = conn, _) do
     with {:ok, _} <- Subscription.delete_if_exists(user, token),
          {:ok, subscription} <- Subscription.create(user, token, params) do
       render(conn, "show.json", subscription: subscription)
@@ -28,7 +30,7 @@ def create(%{assigns: %{user: user, token: token}} = conn, params) do
   # Gets PushSubscription
   # GET /api/v1/push/subscription
   #
-  def get(%{assigns: %{user: user, token: token}} = conn, _params) do
+  def show(%{assigns: %{user: user, token: token}} = conn, _params) do
     with {:ok, subscription} <- Subscription.get(user, token) do
       render(conn, "show.json", subscription: subscription)
     end
@@ -37,7 +39,7 @@ def get(%{assigns: %{user: user, token: token}} = conn, _params) do
   # Updates PushSubscription
   # PUT /api/v1/push/subscription
   #
-  def update(%{assigns: %{user: user, token: token}} = conn, params) do
+  def update(%{assigns: %{user: user, token: token}, body_params: params} = conn, _) do
     with {:ok, subscription} <- Subscription.update(user, token, params) do
       render(conn, "show.json", subscription: subscription)
     end
@@ -66,7 +68,7 @@ defp restrict_push_enabled(conn, _) do
   def errors(conn, {:error, :not_found}) do
     conn
     |> put_status(:not_found)
-    |> json(dgettext("errors", "Not found"))
+    |> json(%{error: dgettext("errors", "Record not found")})
   end
 
   def errors(conn, _) do

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

@@ -7,11 +7,11 @@ defmodule Pleroma.Web.MastodonAPI.FilterView do
   alias Pleroma.Web.CommonAPI.Utils
   alias Pleroma.Web.MastodonAPI.FilterView
 
-  def render("filters.json", %{filters: filters} = opts) do
+  def render("index.json", %{filters: filters}) do
-    render_many(filters, FilterView, "filter.json", opts)
+    render_many(filters, FilterView, "show.json")
   end
 
-  def render("filter.json", %{filter: filter}) do
+  def render("show.json", %{filter: filter}) do
     expires_at =
       if filter.expires_at do
         Utils.to_masto_date(filter.expires_at)

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

@@ -6,12 +6,13 @@ defmodule Pleroma.Web.MastodonAPI.MarkerView do
   use Pleroma.Web, :view
 
   def render("markers.json", %{markers: markers}) do
-    Enum.reduce(markers, %{}, fn m, acc ->
+    Map.new(markers, fn m ->
-      Map.put_new(acc, m.timeline, %{
+      {m.timeline,
+       %{
          last_read_id: m.last_read_id,
          version: m.lock_version,
          updated_at: NaiveDateTime.to_iso8601(m.updated_at)
-      })
+       }}
     end)
   end
 end

lib/pleroma/web/mastodon_api/websocket_handler.ex

@@ -12,6 +12,11 @@ defmodule Pleroma.Web.MastodonAPI.WebsocketHandler do
 
   @behaviour :cowboy_websocket
 
+  # Cowboy timeout period.
+  @timeout :timer.seconds(30)
+  # Hibernate every X messages
+  @hibernate_every 100
+
   @streams [
     "public",
     "public:local",
@@ -25,9 +30,6 @@ defmodule Pleroma.Web.MastodonAPI.WebsocketHandler do
   ]
   @anonymous_streams ["public", "public:local", "hashtag"]
 
-  # Handled by periodic keepalive in Pleroma.Web.Streamer.Ping.
-  @timeout :infinity
-
   def init(%{qs: qs} = req, state) do
     with params <- :cow_qs.parse_qs(qs),
          sec_websocket <- :cowboy_req.header("sec-websocket-protocol", req, nil),
@@ -42,7 +44,7 @@ def init(%{qs: qs} = req, state) do
           req
         end
 
-      {:cowboy_websocket, req, %{user: user, topic: topic}, %{idle_timeout: @timeout}}
+      {:cowboy_websocket, req, %{user: user, topic: topic, count: 0}, %{idle_timeout: @timeout}}
     else
       {:error, code} ->
         Logger.debug("#{__MODULE__} denied connection: #{inspect(code)} - #{inspect(req)}")
@@ -57,7 +59,13 @@ def init(%{qs: qs} = req, state) do
   end
 
   def websocket_init(state) do
-    send(self(), :subscribe)
+    Logger.debug(
+      "#{__MODULE__} accepted websocket connection for user #{
+        (state.user || %{id: "anonymous"}).id
+      }, topic #{state.topic}"
+    )
+
+    Streamer.add_socket(state.topic, state.user)
     {:ok, state}
   end
 
@@ -66,19 +74,24 @@ def websocket_handle(_frame, state) do
     {:ok, state}
   end
 
-  def websocket_info(:subscribe, state) do
+  def websocket_info({:render_with_user, view, template, item}, state) do
-    Logger.debug(
+    user = %User{} = User.get_cached_by_ap_id(state.user.ap_id)
-      "#{__MODULE__} accepted websocket connection for user #{
-        (state.user || %{id: "anonymous"}).id
-      }, topic #{state.topic}"
-    )
 
-    Streamer.add_socket(state.topic, streamer_socket(state))
+    unless Streamer.filtered_by_user?(user, item) do
+      websocket_info({:text, view.render(template, user, item)}, %{state | user: user})
+    else
       {:ok, state}
     end
+  end
 
   def websocket_info({:text, message}, state) do
-    {:reply, {:text, message}, state}
+    # If the websocket processed X messages, force an hibernate/GC.
+    # We don't hibernate at every message to balance CPU usage/latency with RAM usage.
+    if state.count > @hibernate_every do
+      {:reply, {:text, message}, %{state | count: 0}, :hibernate}
+    else
+      {:reply, {:text, message}, %{state | count: state.count + 1}}
+    end
   end
 
   def terminate(reason, _req, state) do
@@ -88,7 +101,7 @@ def terminate(reason, _req, state) do
       }, topic #{state.topic || "?"}: #{inspect(reason)}"
     )
 
-    Streamer.remove_socket(state.topic, streamer_socket(state))
+    Streamer.remove_socket(state.topic)
     :ok
   end
 
@@ -136,8 +149,4 @@ defp expand_topic("list", params) do
   end
 
   defp expand_topic(topic, _), do: topic
-
-  defp streamer_socket(state) do
-    %{transport_pid: self(), assigns: state}
-  end
 end

lib/pleroma/web/oauth/mfa_controller.ex

@@ -0,0 +1,97 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.OAuth.MFAController do
+  @moduledoc """
+  The model represents api to use Multi Factor authentications.
+  """
+
+  use Pleroma.Web, :controller
+
+  alias Pleroma.MFA
+  alias Pleroma.Web.Auth.TOTPAuthenticator
+  alias Pleroma.Web.OAuth.MFAView, as: View
+  alias Pleroma.Web.OAuth.OAuthController
+  alias Pleroma.Web.OAuth.Token
+
+  plug(:fetch_session when action in [:show, :verify])
+  plug(:fetch_flash when action in [:show, :verify])
+
+  @doc """
+  Display form to input mfa code or recovery code.
+  """
+  def show(conn, %{"mfa_token" => mfa_token} = params) do
+    template = Map.get(params, "challenge_type", "totp")
+
+    conn
+    |> put_view(View)
+    |> render("#{template}.html", %{
+      mfa_token: mfa_token,
+      redirect_uri: params["redirect_uri"],
+      state: params["state"]
+    })
+  end
+
+  @doc """
+  Verification code and continue authorization.
+  """
+  def verify(conn, %{"mfa" => %{"mfa_token" => mfa_token} = mfa_params} = _) do
+    with {:ok, %{user: user, authorization: auth}} <- MFA.Token.validate(mfa_token),
+         {:ok, _} <- validates_challenge(user, mfa_params) do
+      conn
+      |> OAuthController.after_create_authorization(auth, %{
+        "authorization" => %{
+          "redirect_uri" => mfa_params["redirect_uri"],
+          "state" => mfa_params["state"]
+        }
+      })
+    else
+      _ ->
+        conn
+        |> put_flash(:error, "Two-factor authentication failed.")
+        |> put_status(:unauthorized)
+        |> show(mfa_params)
+    end
+  end
+
+  @doc """
+  Verification second step of MFA (or recovery) and returns access token.
+
+  ## Endpoint
+  POST /oauth/mfa/challenge
+
+  params:
+  `client_id`
+  `client_secret`
+  `mfa_token` - access token to check second step of mfa
+  `challenge_type` - 'totp' or 'recovery'
+  `code`
+
+  """
+  def challenge(conn, %{"mfa_token" => mfa_token} = params) do
+    with {:ok, app} <- Token.Utils.fetch_app(conn),
+         {:ok, %{user: user, authorization: auth}} <- MFA.Token.validate(mfa_token),
+         {:ok, _} <- validates_challenge(user, params),
+         {:ok, token} <- Token.exchange_token(app, auth) do
+      json(conn, Token.Response.build(user, token))
+    else
+      _error ->
+        conn
+        |> put_status(400)
+        |> json(%{error: "Invalid code"})
+    end
+  end
+
+  # Verify TOTP Code
+  defp validates_challenge(user, %{"challenge_type" => "totp", "code" => code} = _) do
+    TOTPAuthenticator.verify(code, user)
+  end
+
+  # Verify Recovery Code
+  defp validates_challenge(user, %{"challenge_type" => "recovery", "code" => code} = _) do
+    TOTPAuthenticator.verify_recovery_code(user, code)
+  end
+
+  defp validates_challenge(_, _), do: {:error, :unsupported_challenge_type}
+end

lib/pleroma/web/oauth/mfa_view.ex

@@ -0,0 +1,8 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.OAuth.MFAView do
+  use Pleroma.Web, :view
+  import Phoenix.HTML.Form
+end

lib/pleroma/web/oauth/oauth_controller.ex

@@ -6,6 +6,7 @@ defmodule Pleroma.Web.OAuth.OAuthController do
   use Pleroma.Web, :controller
 
   alias Pleroma.Helpers.UriHelper
+  alias Pleroma.MFA
   alias Pleroma.Plugs.RateLimiter
   alias Pleroma.Registration
   alias Pleroma.Repo
@@ -14,6 +15,7 @@ defmodule Pleroma.Web.OAuth.OAuthController do
   alias Pleroma.Web.ControllerHelper
   alias Pleroma.Web.OAuth.App
   alias Pleroma.Web.OAuth.Authorization
+  alias Pleroma.Web.OAuth.MFAController
   alias Pleroma.Web.OAuth.Scopes
   alias Pleroma.Web.OAuth.Token
   alias Pleroma.Web.OAuth.Token.Strategy.RefreshToken
@@ -121,7 +123,8 @@ def create_authorization(
         %{"authorization" => _} = params,
         opts \\ []
       ) do
-    with {:ok, auth} <- do_create_authorization(conn, params, opts[:user]) do
+    with {:ok, auth, user} <- do_create_authorization(conn, params, opts[:user]),
+         {:mfa_required, _, _, false} <- {:mfa_required, user, auth, MFA.require?(user)} do
       after_create_authorization(conn, auth, params)
     else
       error ->
@@ -179,6 +182,22 @@ defp handle_create_authorization_error(
     |> authorize(params)
   end
 
+  defp handle_create_authorization_error(
+         %Plug.Conn{} = conn,
+         {:mfa_required, user, auth, _},
+         params
+       ) do
+    {:ok, token} = MFA.Token.create_token(user, auth)
+
+    data = %{
+      "mfa_token" => token.token,
+      "redirect_uri" => params["authorization"]["redirect_uri"],
+      "state" => params["authorization"]["state"]
+    }
+
+    MFAController.show(conn, data)
+  end
+
   defp handle_create_authorization_error(
          %Plug.Conn{} = conn,
          {:account_status, :password_reset_pending},
@@ -231,7 +250,8 @@ def token_exchange(%Plug.Conn{} = conn, %{"grant_type" => "authorization_code"}
 
       json(conn, Token.Response.build(user, token, response_attrs))
     else
-      _error -> render_invalid_credentials_error(conn)
+      error ->
+        handle_token_exchange_error(conn, error)
     end
   end
 
@@ -244,6 +264,7 @@ def token_exchange(
          {:account_status, :active} <- {:account_status, User.account_status(user)},
          {:ok, scopes} <- validate_scopes(app, params),
          {:ok, auth} <- Authorization.create_authorization(app, user, scopes),
+         {:mfa_required, _, _, false} <- {:mfa_required, user, auth, MFA.require?(user)},
          {:ok, token} <- Token.exchange_token(app, auth) do
       json(conn, Token.Response.build(user, token))
     else
@@ -270,13 +291,20 @@ def token_exchange(%Plug.Conn{} = conn, %{"grant_type" => "client_credentials"}
          {:ok, token} <- Token.exchange_token(app, auth) do
       json(conn, Token.Response.build_for_client_credentials(token))
     else
-      _error -> render_invalid_credentials_error(conn)
+      _error ->
+        handle_token_exchange_error(conn, :invalid_credentails)
     end
   end
 
   # Bad request
   def token_exchange(%Plug.Conn{} = conn, params), do: bad_request(conn, params)
 
+  defp handle_token_exchange_error(%Plug.Conn{} = conn, {:mfa_required, user, auth, _}) do
+    conn
+    |> put_status(:forbidden)
+    |> json(build_and_response_mfa_token(user, auth))
+  end
+
   defp handle_token_exchange_error(%Plug.Conn{} = conn, {:account_status, :deactivated}) do
     render_error(
       conn,
@@ -434,7 +462,8 @@ def registration_details(%Plug.Conn{} = conn, %{"authorization" => auth_attrs})
   def register(%Plug.Conn{} = conn, %{"authorization" => _, "op" => "connect"} = params) do
     with registration_id when not is_nil(registration_id) <- get_session_registration_id(conn),
          %Registration{} = registration <- Repo.get(Registration, registration_id),
-         {_, {:ok, auth}} <- {:create_authorization, do_create_authorization(conn, params)},
+         {_, {:ok, auth, _user}} <-
+           {:create_authorization, do_create_authorization(conn, params)},
          %User{} = user <- Repo.preload(auth, :user).user,
          {:ok, _updated_registration} <- Registration.bind_to_user(registration, user) do
       conn
@@ -500,8 +529,9 @@ defp do_create_authorization(
          %App{} = app <- Repo.get_by(App, client_id: client_id),
          true <- redirect_uri in String.split(app.redirect_uris),
          {:ok, scopes} <- validate_scopes(app, auth_attrs),
-         {:account_status, :active} <- {:account_status, User.account_status(user)} do
+         {:account_status, :active} <- {:account_status, User.account_status(user)},
-      Authorization.create_authorization(app, user, scopes)
+         {:ok, auth} <- Authorization.create_authorization(app, user, scopes) do
+      {:ok, auth, user}
     end
   end
 
@@ -515,6 +545,12 @@ defp get_session_registration_id(%Plug.Conn{} = conn), do: get_session(conn, :re
   defp put_session_registration_id(%Plug.Conn{} = conn, registration_id),
     do: put_session(conn, :registration_id, registration_id)
 
+  defp build_and_response_mfa_token(user, auth) do
+    with {:ok, token} <- MFA.Token.create_token(user, auth) do
+      Token.Response.build_for_mfa_token(user, token)
+    end
+  end
+
   @spec validate_scopes(App.t(), map()) ::
           {:ok, list()} | {:error, :missing_scopes | :unsupported_scopes}
   defp validate_scopes(%App{} = app, params) do

lib/pleroma/web/oauth/token/clean_worker.ex

@@ -0,0 +1,38 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.OAuth.Token.CleanWorker do
+  @moduledoc """
+  The module represents functions to clean an expired OAuth and MFA tokens.
+  """
+  use GenServer
+
+  @ten_seconds 10_000
+  @one_day 86_400_000
+
+  alias Pleroma.MFA
+  alias Pleroma.Web.OAuth
+  alias Pleroma.Workers.BackgroundWorker
+
+  def start_link(_), do: GenServer.start_link(__MODULE__, %{})
+
+  def init(_) do
+    Process.send_after(self(), :perform, @ten_seconds)
+    {:ok, nil}
+  end
+
+  @doc false
+  def handle_info(:perform, state) do
+    BackgroundWorker.enqueue("clean_expired_tokens", %{})
+    interval = Pleroma.Config.get([:oauth2, :clean_expired_tokens_interval], @one_day)
+
+    Process.send_after(self(), :perform, interval)
+    {:noreply, state}
+  end
+
+  def perform(:clean) do
+    OAuth.Token.delete_expired_tokens()
+    MFA.Token.delete_expired_tokens()
+  end
+end

lib/pleroma/web/oauth/token/response.ex

@@ -5,6 +5,7 @@
 defmodule Pleroma.Web.OAuth.Token.Response do
   @moduledoc false
 
+  alias Pleroma.MFA
   alias Pleroma.User
   alias Pleroma.Web.OAuth.Token.Utils
 
@@ -32,5 +33,13 @@ def build_for_client_credentials(token) do
     }
   end
 
+  def build_for_mfa_token(user, mfa_token) do
+    %{
+      error: "mfa_required",
+      mfa_token: mfa_token.token,
+      supported_challenge_types: MFA.supported_methods(user)
+    }
+  end
+
   defp expires_in, do: Pleroma.Config.get([:oauth2, :token_expires_in], 600)
 end

lib/pleroma/web/ostatus/ostatus_controller.ex

@@ -17,7 +17,7 @@ defmodule Pleroma.Web.OStatus.OStatusController do
   alias Pleroma.Web.Router
 
   plug(Pleroma.Plugs.EnsureAuthenticatedPlug,
-    unless_func: &Pleroma.Web.FederatingPlug.federating?/0
+    unless_func: &Pleroma.Web.FederatingPlug.federating?/1
   )
 
   plug(

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

@@ -0,0 +1,133 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.PleromaAPI.TwoFactorAuthenticationController do
+  @moduledoc "The module represents actions to manage MFA"
+  use Pleroma.Web, :controller
+
+  import Pleroma.Web.ControllerHelper, only: [json_response: 3]
+
+  alias Pleroma.MFA
+  alias Pleroma.MFA.TOTP
+  alias Pleroma.Plugs.OAuthScopesPlug
+  alias Pleroma.Web.CommonAPI.Utils
+
+  plug(OAuthScopesPlug, %{scopes: ["read:security"]} when action in [:settings])
+
+  plug(
+    OAuthScopesPlug,
+    %{scopes: ["write:security"]} when action in [:setup, :confirm, :disable, :backup_codes]
+  )
+
+  @doc """
+  Gets user multi factor authentication settings
+
+  ## Endpoint
+  GET /api/pleroma/accounts/mfa
+
+  """
+  def settings(%{assigns: %{user: user}} = conn, _params) do
+    json(conn, %{settings: MFA.mfa_settings(user)})
+  end
+
+  @doc """
+  Prepare setup mfa method
+
+  ## Endpoint
+  GET /api/pleroma/accounts/mfa/setup/[:method]
+
+  """
+  def setup(%{assigns: %{user: user}} = conn, %{"method" => "totp"} = _params) do
+    with {:ok, user} <- MFA.setup_totp(user),
+         %{secret: secret} = _ <- user.multi_factor_authentication_settings.totp do
+      provisioning_uri = TOTP.provisioning_uri(secret, "#{user.email}")
+
+      json(conn, %{provisioning_uri: provisioning_uri, key: secret})
+    else
+      {:error, message} ->
+        json_response(conn, :unprocessable_entity, %{error: message})
+    end
+  end
+
+  def setup(conn, _params) do
+    json_response(conn, :bad_request, %{error: "undefined method"})
+  end
+
+  @doc """
+  Confirms setup and enable mfa method
+
+  ## Endpoint
+  POST /api/pleroma/accounts/mfa/confirm/:method
+
+  - params:
+  `code` - confirmation code
+  `password` - current password
+  """
+  def confirm(
+        %{assigns: %{user: user}} = conn,
+        %{"method" => "totp", "password" => _, "code" => _} = params
+      ) do
+    with {:ok, _user} <- Utils.confirm_current_password(user, params["password"]),
+         {:ok, _user} <- MFA.confirm_totp(user, params) do
+      json(conn, %{})
+    else
+      {:error, message} ->
+        json_response(conn, :unprocessable_entity, %{error: message})
+    end
+  end
+
+  def confirm(conn, _) do
+    json_response(conn, :bad_request, %{error: "undefined mfa method"})
+  end
+
+  @doc """
+  Disable mfa method and disable mfa if need.
+  """
+  def disable(%{assigns: %{user: user}} = conn, %{"method" => "totp"} = params) do
+    with {:ok, user} <- Utils.confirm_current_password(user, params["password"]),
+         {:ok, _user} <- MFA.disable_totp(user) do
+      json(conn, %{})
+    else
+      {:error, message} ->
+        json_response(conn, :unprocessable_entity, %{error: message})
+    end
+  end
+
+  def disable(%{assigns: %{user: user}} = conn, %{"method" => "mfa"} = params) do
+    with {:ok, user} <- Utils.confirm_current_password(user, params["password"]),
+         {:ok, _user} <- MFA.disable(user) do
+      json(conn, %{})
+    else
+      {:error, message} ->
+        json_response(conn, :unprocessable_entity, %{error: message})
+    end
+  end
+
+  def disable(conn, _) do
+    json_response(conn, :bad_request, %{error: "undefined mfa method"})
+  end
+
+  @doc """
+  Generates backup codes.
+
+  ## Endpoint
+  GET /api/pleroma/accounts/mfa/backup_codes
+
+  ## Response
+  ### Success
+  `{codes: [codes]}`
+
+  ### Error
+  `{error: [error_message]}`
+
+  """
+  def backup_codes(%{assigns: %{user: user}} = conn, _params) do
+    with {:ok, codes} <- MFA.generate_backup_codes(user) do
+      json(conn, %{codes: codes})
+    else
+      {:error, message} ->
+        json_response(conn, :unprocessable_entity, %{error: message})
+    end
+  end
+end

lib/pleroma/web/push/subscription.ex

@@ -25,9 +25,9 @@ defmodule Pleroma.Web.Push.Subscription do
     timestamps()
   end
 
-  @supported_alert_types ~w[follow favourite mention reblog]
+  @supported_alert_types ~w[follow favourite mention reblog]a
 
-  defp alerts(%{"data" => %{"alerts" => alerts}}) do
+  defp alerts(%{data: %{alerts: alerts}}) do
     alerts = Map.take(alerts, @supported_alert_types)
     %{"alerts" => alerts}
   end
@@ -44,9 +44,9 @@ def create(
         %User{} = user,
         %Token{} = token,
         %{
-          "subscription" => %{
+          subscription: %{
-            "endpoint" => endpoint,
+            endpoint: endpoint,
-            "keys" => %{"auth" => key_auth, "p256dh" => key_p256dh}
+            keys: %{auth: key_auth, p256dh: key_p256dh}
           }
         } = params
       ) do

lib/pleroma/web/router.ex

@@ -132,6 +132,7 @@ defmodule Pleroma.Web.Router do
     post("/users/follow", AdminAPIController, :user_follow)
     post("/users/unfollow", AdminAPIController, :user_unfollow)
 
+    put("/users/disable_mfa", AdminAPIController, :disable_mfa)
     delete("/users", AdminAPIController, :user_delete)
     post("/users", AdminAPIController, :users_create)
     patch("/users/:nickname/toggle_activation", AdminAPIController, :user_toggle_activation)
@@ -188,6 +189,7 @@ defmodule Pleroma.Web.Router do
     post("/reports/:id/notes", AdminAPIController, :report_notes_create)
     delete("/reports/:report_id/notes/:id", AdminAPIController, :report_notes_delete)
 
+    get("/statuses/:id", AdminAPIController, :status_show)
     put("/statuses/:id", AdminAPIController, :status_update)
     delete("/statuses/:id", AdminAPIController, :status_delete)
     get("/statuses", AdminAPIController, :list_statuses)
@@ -257,6 +259,16 @@ defmodule Pleroma.Web.Router do
     post("/follow_import", UtilController, :follow_import)
   end
 
+  scope "/api/pleroma", Pleroma.Web.PleromaAPI do
+    pipe_through(:authenticated_api)
+
+    get("/accounts/mfa", TwoFactorAuthenticationController, :settings)
+    get("/accounts/mfa/backup_codes", TwoFactorAuthenticationController, :backup_codes)
+    get("/accounts/mfa/setup/:method", TwoFactorAuthenticationController, :setup)
+    post("/accounts/mfa/confirm/:method", TwoFactorAuthenticationController, :confirm)
+    delete("/accounts/mfa/:method", TwoFactorAuthenticationController, :disable)
+  end
+
   scope "/oauth", Pleroma.Web.OAuth do
     scope [] do
       pipe_through(:oauth)
@@ -268,6 +280,10 @@ defmodule Pleroma.Web.Router do
     post("/revoke", OAuthController, :token_revoke)
     get("/registration_details", OAuthController, :registration_details)
 
+    post("/mfa/challenge", MFAController, :challenge)
+    post("/mfa/verify", MFAController, :verify, as: :mfa_verify)
+    get("/mfa", MFAController, :show)
+
     scope [] do
       pipe_through(:browser)
 
@@ -426,7 +442,7 @@ defmodule Pleroma.Web.Router do
     post("/statuses/:id/unmute", StatusController, :unmute_conversation)
 
     post("/push/subscription", SubscriptionController, :create)
-    get("/push/subscription", SubscriptionController, :get)
+    get("/push/subscription", SubscriptionController, :show)
     put("/push/subscription", SubscriptionController, :update)
     delete("/push/subscription", SubscriptionController, :delete)
 

lib/pleroma/web/static_fe/static_fe_controller.ex

@@ -18,7 +18,7 @@ defmodule Pleroma.Web.StaticFE.StaticFEController do
   plug(:assign_id)
 
   plug(Pleroma.Plugs.EnsureAuthenticatedPlug,
-    unless_func: &Pleroma.Web.FederatingPlug.federating?/0
+    unless_func: &Pleroma.Web.FederatingPlug.federating?/1
   )
 
   @page_keys ["max_id", "min_id", "limit", "since_id", "order"]

lib/pleroma/web/streamer/ping.ex

@@ -1,37 +0,0 @@
-# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
-# SPDX-License-Identifier: AGPL-3.0-only
-
-defmodule Pleroma.Web.Streamer.Ping do
-  use GenServer
-  require Logger
-
-  alias Pleroma.Web.Streamer.State
-  alias Pleroma.Web.Streamer.StreamerSocket
-
-  @keepalive_interval :timer.seconds(30)
-
-  def start_link(opts) do
-    ping_interval = Keyword.get(opts, :ping_interval, @keepalive_interval)
-    GenServer.start_link(__MODULE__, %{ping_interval: ping_interval}, name: __MODULE__)
-  end
-
-  def init(%{ping_interval: ping_interval} = args) do
-    Process.send_after(self(), :ping, ping_interval)
-    {:ok, args}
-  end
-
-  def handle_info(:ping, %{ping_interval: ping_interval} = state) do
-    State.get_sockets()
-    |> Map.values()
-    |> List.flatten()
-    |> Enum.each(fn %StreamerSocket{transport_pid: transport_pid} ->
-      Logger.debug("Sending keepalive ping")
-      send(transport_pid, {:text, ""})
-    end)
-
-    Process.send_after(self(), :ping, ping_interval)
-
-    {:noreply, state}
-  end
-end

lib/pleroma/web/streamer/state.ex

@@ -1,82 +0,0 @@
-# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
-# SPDX-License-Identifier: AGPL-3.0-only
-
-defmodule Pleroma.Web.Streamer.State do
-  use GenServer
-  require Logger
-
-  alias Pleroma.Web.Streamer.StreamerSocket
-
-  @env Mix.env()
-
-  def start_link(_) do
-    GenServer.start_link(__MODULE__, %{sockets: %{}}, name: __MODULE__)
-  end
-
-  def add_socket(topic, socket) do
-    GenServer.call(__MODULE__, {:add, topic, socket})
-  end
-
-  def remove_socket(topic, socket) do
-    do_remove_socket(@env, topic, socket)
-  end
-
-  def get_sockets do
-    %{sockets: stream_sockets} = GenServer.call(__MODULE__, :get_state)
-    stream_sockets
-  end
-
-  def init(init_arg) do
-    {:ok, init_arg}
-  end
-
-  def handle_call(:get_state, _from, state) do
-    {:reply, state, state}
-  end
-
-  def handle_call({:add, topic, socket}, _from, %{sockets: sockets} = state) do
-    internal_topic = internal_topic(topic, socket)
-    stream_socket = StreamerSocket.from_socket(socket)
-
-    sockets_for_topic =
-      sockets
-      |> Map.get(internal_topic, [])
-      |> List.insert_at(0, stream_socket)
-      |> Enum.uniq()
-
-    state = put_in(state, [:sockets, internal_topic], sockets_for_topic)
-    Logger.debug("Got new conn for #{topic}")
-    {:reply, state, state}
-  end
-
-  def handle_call({:remove, topic, socket}, _from, %{sockets: sockets} = state) do
-    internal_topic = internal_topic(topic, socket)
-    stream_socket = StreamerSocket.from_socket(socket)
-
-    sockets_for_topic =
-      sockets
-      |> Map.get(internal_topic, [])
-      |> List.delete(stream_socket)
-
-    state = Kernel.put_in(state, [:sockets, internal_topic], sockets_for_topic)
-    {:reply, state, state}
-  end
-
-  defp do_remove_socket(:test, _, _) do
-    :ok
-  end
-
-  defp do_remove_socket(_env, topic, socket) do
-    GenServer.call(__MODULE__, {:remove, topic, socket})
-  end
-
-  defp internal_topic(topic, socket)
-       when topic in ~w[user user:notification direct] do
-    "#{topic}:#{socket.assigns[:user].id}"
-  end
-
-  defp internal_topic(topic, _) do
-    topic
-  end
-end

lib/pleroma/web/streamer/streamer.ex

@@ -3,44 +3,220 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.Streamer do
-  alias Pleroma.Web.Streamer.State
+  require Logger
-  alias Pleroma.Web.Streamer.Worker
+
+  alias Pleroma.Activity
+  alias Pleroma.Config
+  alias Pleroma.Conversation.Participation
+  alias Pleroma.Notification
+  alias Pleroma.Object
+  alias Pleroma.User
+  alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.Visibility
+  alias Pleroma.Web.CommonAPI
+  alias Pleroma.Web.StreamerView
 
-  @timeout 60_000
   @mix_env Mix.env()
+  @registry Pleroma.Web.StreamerRegistry
 
-  def add_socket(topic, socket) do
+  def registry, do: @registry
-    State.add_socket(topic, socket)
+
+  def add_socket(topic, %User{} = user) do
+    if should_env_send?(), do: Registry.register(@registry, user_topic(topic, user), true)
   end
 
-  def remove_socket(topic, socket) do
+  def add_socket(topic, _) do
-    State.remove_socket(topic, socket)
+    if should_env_send?(), do: Registry.register(@registry, topic, false)
   end
 
-  def get_sockets do
+  def remove_socket(topic) do
-    State.get_sockets()
+    if should_env_send?(), do: Registry.unregister(@registry, topic)
   end
 
-  def stream(topics, items) do
+  def stream(topics, item) when is_list(topics) do
-    if should_send?() do
+    if should_env_send?() do
-      Task.async(fn ->
+      Enum.each(topics, fn t ->
-        :poolboy.transaction(
+        spawn(fn -> do_stream(t, item) end)
-          :streamer_worker,
-          &Worker.stream(&1, topics, items),
-          @timeout
-        )
       end)
     end
+
+    :ok
   end
 
-  def supervisor, do: Pleroma.Web.Streamer.Supervisor
+  def stream(topic, items) when is_list(items) do
+    if should_env_send?() do
+      Enum.each(items, fn i ->
+        spawn(fn -> do_stream(topic, i) end)
+      end)
 
-  defp should_send? do
+      :ok
-    handle_should_send(@mix_env)
+    end
   end
 
-  defp handle_should_send(:test) do
+  def stream(topic, item) do
-    case Process.whereis(:streamer_worker) do
+    if should_env_send?() do
+      spawn(fn -> do_stream(topic, item) end)
+    end
+
+    :ok
+  end
+
+  def filtered_by_user?(%User{} = user, %Activity{} = item) do
+    %{block: blocked_ap_ids, mute: muted_ap_ids, reblog_mute: reblog_muted_ap_ids} =
+      User.outgoing_relationships_ap_ids(user, [:block, :mute, :reblog_mute])
+
+    recipient_blocks = MapSet.new(blocked_ap_ids ++ muted_ap_ids)
+    recipients = MapSet.new(item.recipients)
+    domain_blocks = Pleroma.Web.ActivityPub.MRF.subdomains_regex(user.domain_blocks)
+
+    with parent <- Object.normalize(item) || item,
+         true <-
+           Enum.all?([blocked_ap_ids, muted_ap_ids], &(item.actor not in &1)),
+         true <- item.data["type"] != "Announce" || item.actor not in reblog_muted_ap_ids,
+         true <- Enum.all?([blocked_ap_ids, muted_ap_ids], &(parent.data["actor"] not in &1)),
+         true <- MapSet.disjoint?(recipients, recipient_blocks),
+         %{host: item_host} <- URI.parse(item.actor),
+         %{host: parent_host} <- URI.parse(parent.data["actor"]),
+         false <- Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, item_host),
+         false <- Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, parent_host),
+         true <- thread_containment(item, user),
+         false <- CommonAPI.thread_muted?(user, item) do
+      false
+    else
+      _ -> true
+    end
+  end
+
+  def filtered_by_user?(%User{} = user, %Notification{activity: activity}) do
+    filtered_by_user?(user, activity)
+  end
+
+  defp do_stream("direct", item) do
+    recipient_topics =
+      User.get_recipients_from_activity(item)
+      |> Enum.map(fn %{id: id} -> "direct:#{id}" end)
+
+    Enum.each(recipient_topics, fn user_topic ->
+      Logger.debug("Trying to push direct message to #{user_topic}\n\n")
+      push_to_socket(user_topic, item)
+    end)
+  end
+
+  defp do_stream("participation", participation) do
+    user_topic = "direct:#{participation.user_id}"
+    Logger.debug("Trying to push a conversation participation to #{user_topic}\n\n")
+
+    push_to_socket(user_topic, participation)
+  end
+
+  defp do_stream("list", item) do
+    # filter the recipient list if the activity is not public, see #270.
+    recipient_lists =
+      case Visibility.is_public?(item) do
+        true ->
+          Pleroma.List.get_lists_from_activity(item)
+
+        _ ->
+          Pleroma.List.get_lists_from_activity(item)
+          |> Enum.filter(fn list ->
+            owner = User.get_cached_by_id(list.user_id)
+
+            Visibility.visible_for_user?(item, owner)
+          end)
+      end
+
+    recipient_topics =
+      recipient_lists
+      |> Enum.map(fn %{id: id} -> "list:#{id}" end)
+
+    Enum.each(recipient_topics, fn list_topic ->
+      Logger.debug("Trying to push message to #{list_topic}\n\n")
+      push_to_socket(list_topic, item)
+    end)
+  end
+
+  defp do_stream(topic, %Notification{} = item)
+       when topic in ["user", "user:notification"] do
+    Registry.dispatch(@registry, "#{topic}:#{item.user_id}", fn list ->
+      Enum.each(list, fn {pid, _auth} ->
+        send(pid, {:render_with_user, StreamerView, "notification.json", item})
+      end)
+    end)
+  end
+
+  defp do_stream("user", item) do
+    Logger.debug("Trying to push to users")
+
+    recipient_topics =
+      User.get_recipients_from_activity(item)
+      |> Enum.map(fn %{id: id} -> "user:#{id}" end)
+
+    Enum.each(recipient_topics, fn topic ->
+      push_to_socket(topic, item)
+    end)
+  end
+
+  defp do_stream(topic, item) do
+    Logger.debug("Trying to push to #{topic}")
+    Logger.debug("Pushing item to #{topic}")
+    push_to_socket(topic, item)
+  end
+
+  defp push_to_socket(topic, %Participation{} = participation) do
+    rendered = StreamerView.render("conversation.json", participation)
+
+    Registry.dispatch(@registry, topic, fn list ->
+      Enum.each(list, fn {pid, _} ->
+        send(pid, {:text, rendered})
+      end)
+    end)
+  end
+
+  defp push_to_socket(topic, %Activity{
+         data: %{"type" => "Delete", "deleted_activity_id" => deleted_activity_id}
+       }) do
+    rendered = Jason.encode!(%{event: "delete", payload: to_string(deleted_activity_id)})
+
+    Registry.dispatch(@registry, topic, fn list ->
+      Enum.each(list, fn {pid, _} ->
+        send(pid, {:text, rendered})
+      end)
+    end)
+  end
+
+  defp push_to_socket(_topic, %Activity{data: %{"type" => "Delete"}}), do: :noop
+
+  defp push_to_socket(topic, item) do
+    anon_render = StreamerView.render("update.json", item)
+
+    Registry.dispatch(@registry, topic, fn list ->
+      Enum.each(list, fn {pid, auth?} ->
+        if auth? do
+          send(pid, {:render_with_user, StreamerView, "update.json", item})
+        else
+          send(pid, {:text, anon_render})
+        end
+      end)
+    end)
+  end
+
+  defp thread_containment(_activity, %User{skip_thread_containment: true}), do: true
+
+  defp thread_containment(activity, user) do
+    if Config.get([:instance, :skip_thread_containment]) do
+      true
+    else
+      ActivityPub.contain_activity(activity, user)
+    end
+  end
+
+  # In test environement, only return true if the registry is started.
+  # In benchmark environment, returns false.
+  # In any other environment, always returns true.
+  cond do
+    @mix_env == :test ->
+      def should_env_send? do
+        case Process.whereis(@registry) do
           nil ->
             false
 
@@ -49,7 +225,19 @@ defp handle_should_send(:test) do
         end
       end
 
-  defp handle_should_send(:benchmark), do: false
+    @mix_env == :benchmark ->
+      def should_env_send?, do: false
 
-  defp handle_should_send(_), do: true
+    true ->
+      def should_env_send?, do: true
+  end
+
+  defp user_topic(topic, user)
+       when topic in ~w[user user:notification direct] do
+    "#{topic}:#{user.id}"
+  end
+
+  defp user_topic(topic, _) do
+    topic
+  end
 end

lib/pleroma/web/streamer/streamer_socket.ex

@@ -1,35 +0,0 @@
-# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
-# SPDX-License-Identifier: AGPL-3.0-only
-
-defmodule Pleroma.Web.Streamer.StreamerSocket do
-  defstruct transport_pid: nil, user: nil
-
-  alias Pleroma.User
-  alias Pleroma.Web.Streamer.StreamerSocket
-
-  def from_socket(%{
-        transport_pid: transport_pid,
-        assigns: %{user: nil}
-      }) do
-    %StreamerSocket{
-      transport_pid: transport_pid
-    }
-  end
-
-  def from_socket(%{
-        transport_pid: transport_pid,
-        assigns: %{user: %User{} = user}
-      }) do
-    %StreamerSocket{
-      transport_pid: transport_pid,
-      user: user
-    }
-  end
-
-  def from_socket(%{transport_pid: transport_pid}) do
-    %StreamerSocket{
-      transport_pid: transport_pid
-    }
-  end
-end

lib/pleroma/web/streamer/supervisor.ex

@@ -1,37 +0,0 @@
-# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
-# SPDX-License-Identifier: AGPL-3.0-only
-
-defmodule Pleroma.Web.Streamer.Supervisor do
-  use Supervisor
-
-  def start_link(opts) do
-    Supervisor.start_link(__MODULE__, opts, name: __MODULE__)
-  end
-
-  def init(args) do
-    children = [
-      {Pleroma.Web.Streamer.State, args},
-      {Pleroma.Web.Streamer.Ping, args},
-      :poolboy.child_spec(:streamer_worker, poolboy_config())
-    ]
-
-    opts = [strategy: :one_for_one, name: Pleroma.Web.Streamer.Supervisor]
-    Supervisor.init(children, opts)
-  end
-
-  defp poolboy_config do
-    opts =
-      Pleroma.Config.get(:streamer,
-        workers: 3,
-        overflow_workers: 2
-      )
-
-    [
-      {:name, {:local, :streamer_worker}},
-      {:worker_module, Pleroma.Web.Streamer.Worker},
-      {:size, opts[:workers]},
-      {:max_overflow, opts[:overflow_workers]}
-    ]
-  end
-end

lib/pleroma/web/streamer/worker.ex

@@ -1,208 +0,0 @@
-# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
-# SPDX-License-Identifier: AGPL-3.0-only
-
-defmodule Pleroma.Web.Streamer.Worker do
-  use GenServer
-
-  require Logger
-
-  alias Pleroma.Activity
-  alias Pleroma.Config
-  alias Pleroma.Conversation.Participation
-  alias Pleroma.Notification
-  alias Pleroma.Object
-  alias Pleroma.User
-  alias Pleroma.Web.ActivityPub.ActivityPub
-  alias Pleroma.Web.ActivityPub.Visibility
-  alias Pleroma.Web.CommonAPI
-  alias Pleroma.Web.Streamer.State
-  alias Pleroma.Web.Streamer.StreamerSocket
-  alias Pleroma.Web.StreamerView
-
-  def start_link(_) do
-    GenServer.start_link(__MODULE__, %{}, [])
-  end
-
-  def init(init_arg) do
-    {:ok, init_arg}
-  end
-
-  def stream(pid, topics, items) do
-    GenServer.call(pid, {:stream, topics, items})
-  end
-
-  def handle_call({:stream, topics, item}, _from, state) when is_list(topics) do
-    Enum.each(topics, fn t ->
-      do_stream(%{topic: t, item: item})
-    end)
-
-    {:reply, state, state}
-  end
-
-  def handle_call({:stream, topic, items}, _from, state) when is_list(items) do
-    Enum.each(items, fn i ->
-      do_stream(%{topic: topic, item: i})
-    end)
-
-    {:reply, state, state}
-  end
-
-  def handle_call({:stream, topic, item}, _from, state) do
-    do_stream(%{topic: topic, item: item})
-
-    {:reply, state, state}
-  end
-
-  defp do_stream(%{topic: "direct", item: item}) do
-    recipient_topics =
-      User.get_recipients_from_activity(item)
-      |> Enum.map(fn %{id: id} -> "direct:#{id}" end)
-
-    Enum.each(recipient_topics, fn user_topic ->
-      Logger.debug("Trying to push direct message to #{user_topic}\n\n")
-      push_to_socket(State.get_sockets(), user_topic, item)
-    end)
-  end
-
-  defp do_stream(%{topic: "participation", item: participation}) do
-    user_topic = "direct:#{participation.user_id}"
-    Logger.debug("Trying to push a conversation participation to #{user_topic}\n\n")
-
-    push_to_socket(State.get_sockets(), user_topic, participation)
-  end
-
-  defp do_stream(%{topic: "list", item: item}) do
-    # filter the recipient list if the activity is not public, see #270.
-    recipient_lists =
-      case Visibility.is_public?(item) do
-        true ->
-          Pleroma.List.get_lists_from_activity(item)
-
-        _ ->
-          Pleroma.List.get_lists_from_activity(item)
-          |> Enum.filter(fn list ->
-            owner = User.get_cached_by_id(list.user_id)
-
-            Visibility.visible_for_user?(item, owner)
-          end)
-      end
-
-    recipient_topics =
-      recipient_lists
-      |> Enum.map(fn %{id: id} -> "list:#{id}" end)
-
-    Enum.each(recipient_topics, fn list_topic ->
-      Logger.debug("Trying to push message to #{list_topic}\n\n")
-      push_to_socket(State.get_sockets(), list_topic, item)
-    end)
-  end
-
-  defp do_stream(%{topic: topic, item: %Notification{} = item})
-       when topic in ["user", "user:notification"] do
-    State.get_sockets()
-    |> Map.get("#{topic}:#{item.user_id}", [])
-    |> Enum.each(fn %StreamerSocket{transport_pid: transport_pid, user: socket_user} ->
-      with %User{} = user <- User.get_cached_by_ap_id(socket_user.ap_id),
-           true <- should_send?(user, item) do
-        send(transport_pid, {:text, StreamerView.render("notification.json", socket_user, item)})
-      end
-    end)
-  end
-
-  defp do_stream(%{topic: "user", item: item}) do
-    Logger.debug("Trying to push to users")
-
-    recipient_topics =
-      User.get_recipients_from_activity(item)
-      |> Enum.map(fn %{id: id} -> "user:#{id}" end)
-
-    Enum.each(recipient_topics, fn topic ->
-      push_to_socket(State.get_sockets(), topic, item)
-    end)
-  end
-
-  defp do_stream(%{topic: topic, item: item}) do
-    Logger.debug("Trying to push to #{topic}")
-    Logger.debug("Pushing item to #{topic}")
-    push_to_socket(State.get_sockets(), topic, item)
-  end
-
-  defp should_send?(%User{} = user, %Activity{} = item) do
-    %{block: blocked_ap_ids, mute: muted_ap_ids, reblog_mute: reblog_muted_ap_ids} =
-      User.outgoing_relationships_ap_ids(user, [:block, :mute, :reblog_mute])
-
-    recipient_blocks = MapSet.new(blocked_ap_ids ++ muted_ap_ids)
-    recipients = MapSet.new(item.recipients)
-    domain_blocks = Pleroma.Web.ActivityPub.MRF.subdomains_regex(user.domain_blocks)
-
-    with parent <- Object.normalize(item) || item,
-         true <-
-           Enum.all?([blocked_ap_ids, muted_ap_ids], &(item.actor not in &1)),
-         true <- item.data["type"] != "Announce" || item.actor not in reblog_muted_ap_ids,
-         true <- Enum.all?([blocked_ap_ids, muted_ap_ids], &(parent.data["actor"] not in &1)),
-         true <- MapSet.disjoint?(recipients, recipient_blocks),
-         %{host: item_host} <- URI.parse(item.actor),
-         %{host: parent_host} <- URI.parse(parent.data["actor"]),
-         false <- Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, item_host),
-         false <- Pleroma.Web.ActivityPub.MRF.subdomain_match?(domain_blocks, parent_host),
-         true <- thread_containment(item, user),
-         false <- CommonAPI.thread_muted?(user, item) do
-      true
-    else
-      _ -> false
-    end
-  end
-
-  defp should_send?(%User{} = user, %Notification{activity: activity}) do
-    should_send?(user, activity)
-  end
-
-  def push_to_socket(topics, topic, %Participation{} = participation) do
-    Enum.each(topics[topic] || [], fn %StreamerSocket{transport_pid: transport_pid} ->
-      send(transport_pid, {:text, StreamerView.render("conversation.json", participation)})
-    end)
-  end
-
-  def push_to_socket(topics, topic, %Activity{
-        data: %{"type" => "Delete", "deleted_activity_id" => deleted_activity_id}
-      }) do
-    Enum.each(topics[topic] || [], fn %StreamerSocket{transport_pid: transport_pid} ->
-      send(
-        transport_pid,
-        {:text, %{event: "delete", payload: to_string(deleted_activity_id)} |> Jason.encode!()}
-      )
-    end)
-  end
-
-  def push_to_socket(_topics, _topic, %Activity{data: %{"type" => "Delete"}}), do: :noop
-
-  def push_to_socket(topics, topic, item) do
-    Enum.each(topics[topic] || [], fn %StreamerSocket{
-                                        transport_pid: transport_pid,
-                                        user: socket_user
-                                      } ->
-      # Get the current user so we have up-to-date blocks etc.
-      if socket_user do
-        user = User.get_cached_by_ap_id(socket_user.ap_id)
-
-        if should_send?(user, item) do
-          send(transport_pid, {:text, StreamerView.render("update.json", item, user)})
-        end
-      else
-        send(transport_pid, {:text, StreamerView.render("update.json", item)})
-      end
-    end)
-  end
-
-  @spec thread_containment(Activity.t(), User.t()) :: boolean()
-  defp thread_containment(_activity, %User{skip_thread_containment: true}), do: true
-
-  defp thread_containment(activity, user) do
-    if Config.get([:instance, :skip_thread_containment]) do
-      true
-    else
-      ActivityPub.contain_activity(activity, user)
-    end
-  end
-end

lib/pleroma/web/templates/o_auth/mfa/recovery.html.eex

@@ -0,0 +1,24 @@
+<%= if get_flash(@conn, :info) do %>
+<p class="alert alert-info" role="alert"><%= get_flash(@conn, :info) %></p>
+<% end %>
+<%= if get_flash(@conn, :error) do %>
+<p class="alert alert-danger" role="alert"><%= get_flash(@conn, :error) %></p>
+<% end %>
+
+<h2>Two-factor recovery</h2>
+
+<%= form_for @conn, mfa_verify_path(@conn, :verify), [as: "mfa"], fn f -> %>
+<div class="input">
+  <%= label f, :code, "Recovery code" %>
+  <%= text_input f, :code %>
+  <%= hidden_input f, :mfa_token, value: @mfa_token %>
+  <%= hidden_input f, :state, value: @state %>
+  <%= hidden_input f, :redirect_uri, value: @redirect_uri %>
+  <%= hidden_input f, :challenge_type, value: "recovery" %>
+</div>
+
+<%= submit "Verify" %>
+<% end %>
+<a href="<%= mfa_path(@conn, :show, %{challenge_type: "totp", mfa_token: @mfa_token, state: @state, redirect_uri: @redirect_uri}) %>">
+  Enter a two-factor code
+</a>

lib/pleroma/web/templates/o_auth/mfa/totp.html.eex

@@ -0,0 +1,24 @@
+<%= if get_flash(@conn, :info) do %>
+<p class="alert alert-info" role="alert"><%= get_flash(@conn, :info) %></p>
+<% end %>
+<%= if get_flash(@conn, :error) do %>
+<p class="alert alert-danger" role="alert"><%= get_flash(@conn, :error) %></p>
+<% end %>
+
+<h2>Two-factor authentication</h2>
+
+<%= form_for @conn, mfa_verify_path(@conn, :verify), [as: "mfa"], fn f -> %>
+<div class="input">
+  <%= label f, :code, "Authentication code" %>
+  <%= text_input f, :code %>
+  <%= hidden_input f, :mfa_token, value: @mfa_token %>
+  <%= hidden_input f, :state, value: @state %>
+  <%= hidden_input f, :redirect_uri, value: @redirect_uri %>
+  <%= hidden_input f, :challenge_type, value: "totp" %>
+</div>
+
+<%= submit "Verify" %>
+<% end %>
+<a href="<%= mfa_path(@conn, :show, %{challenge_type: "recovery", mfa_token: @mfa_token, state: @state, redirect_uri: @redirect_uri}) %>">
+  Enter a two-factor recovery code
+</a>

lib/pleroma/web/templates/twitter_api/remote_follow/follow_mfa.html.eex

@@ -0,0 +1,13 @@
+<%= if @error do %>
+<h2><%= @error %></h2>
+<% end %>
+<h2>Two-factor authentication</h2>
+<p><%= @followee.nickname %></p>
+<img height="128" width="128" src="<%= avatar_url(@followee) %>">
+<%= form_for @conn, remote_follow_path(@conn, :do_follow), [as: "mfa"], fn f -> %>
+<%= text_input f, :code, placeholder: "Authentication code", required: true %>
+<br>
+<%= hidden_input f, :id, value: @followee.id %>
+<%= hidden_input f, :token, value: @mfa_token %>
+<%= submit "Authorize" %>
+<% end %>