Merge branch 'develop' of git.pleroma.social:pleroma/pleroma into remake-remodel-dms

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
 

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."
+              }
+            ]
+          }
+        ]
       }
     ]
   },

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:

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

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

@@ -907,12 +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
 
@@ -930,6 +936,7 @@ Restrict access for unauthenticated users to timelines (public and federate), us
   * `local`
   * `remote`
 
+
 ## Pleroma.Web.ApiSpec.CastAndValidate
 
 * `:strict` a boolean, enables strict input validation (useful in development, not recommended in production). Defaults to `false`.

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/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

@@ -15,6 +15,20 @@ 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

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
@@ -190,6 +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
 
@@ -927,6 +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

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -177,12 +177,6 @@ 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 ->
@@ -205,6 +199,15 @@ 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),
@@ -281,6 +284,7 @@ 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
@@ -308,6 +312,7 @@ 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
@@ -332,6 +337,7 @@ 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
@@ -351,6 +357,7 @@ 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
@@ -372,6 +379,7 @@ 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
@@ -398,6 +406,7 @@ defp do_unreact_with_emoji(user, reaction_id, options) do
          unreact_data <- make_undo_data(user, reaction_activity, activity_id),
          {:ok, activity} <- insert(unreact_data, local),
          {:ok, object} <- remove_emoji_reaction_from_object(reaction_activity, object),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity, object}
     else
@@ -420,6 +429,7 @@ defp do_unlike(actor, object, activity_id, local) do
          {:ok, unlike_activity} <- insert(unlike_data, local),
          {:ok, _activity} <- Repo.delete(like_activity),
          {:ok, object} <- remove_like_from_object(like_activity, object),
+         _ <- notify_and_stream(unlike_activity),
          :ok <- maybe_federate(unlike_activity) do
       {:ok, unlike_activity, like_activity, object}
     else
@@ -449,6 +459,7 @@ 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
@@ -475,6 +486,7 @@ defp do_unannounce(actor, object, activity_id, local) do
     with %Activity{} = announce_activity <- get_existing_announce(actor.ap_id, object),
          unannounce_data <- make_unannounce_data(actor, announce_activity, activity_id),
          {:ok, unannounce_activity} <- insert(unannounce_data, local),
+         _ <- notify_and_stream(unannounce_activity),
          :ok <- maybe_federate(unannounce_activity),
          {:ok, _activity} <- Repo.delete(announce_activity),
          {:ok, object} <- remove_announce_from_object(announce_activity, object) do
@@ -497,6 +509,7 @@ 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
@@ -518,6 +531,7 @@ 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
@@ -547,6 +561,7 @@ 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
@@ -567,6 +582,7 @@ defp do_unblock(blocker, blocked, activity_id, local) do
     with %Activity{} = block_activity <- fetch_latest_block(blocker, blocked),
          unblock_data <- make_unblock_data(blocker, blocked, block_activity, activity_id),
          {:ok, activity} <- insert(unblock_data, local),
+         _ <- notify_and_stream(activity),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     else
@@ -601,6 +617,7 @@ 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)
@@ -624,7 +641,8 @@ 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/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
@@ -61,6 +62,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIController do
            :right_add,
            :right_add_multiple,
            :right_delete,
+           :disable_mfa,
            :right_delete_multiple,
            :update_user_credentials
          ]
@@ -674,6 +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

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/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"},
-      expired: %Schema{type: :boolean},
-      multiple: %Schema{type: :boolean},
-      votes_count: %Schema{type: :integer},
-      voted: %Schema{type: :boolean},
-      emojis: %Schema{type: :array, items: Emoji},
+      expires_at: %Schema{
+        type: :string,
+        format: :"date-time",
+        nullable: true,
+        description: "When the poll ends"
+      },
+      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/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, error}
+      {:error, _reason} = 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/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/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/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
-    Logger.debug(
-      "#{__MODULE__} accepted websocket connection for user #{
-        (state.user || %{id: "anonymous"}).id
-      }, topic #{state.topic}"
-    )
+  def websocket_info({:render_with_user, view, template, item}, state) do
+    user = %User{} = User.get_cached_by_ap_id(state.user.ap_id)
 
-    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
-      Authorization.create_authorization(app, user, scopes)
+         {:account_status, :active} <- {:account_status, User.account_status(user)},
+         {: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/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/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)
@@ -258,6 +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)
@@ -269,6 +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)
 

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
-  alias Pleroma.Web.Streamer.Worker
+  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.StreamerView
 
-  @timeout 60_000
   @mix_env Mix.env()
+  @registry Pleroma.Web.StreamerRegistry
 
-  def add_socket(topic, socket) do
-    State.add_socket(topic, socket)
+  def registry, do: @registry
+
+  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
-    State.remove_socket(topic, socket)
+  def add_socket(topic, _) do
+    if should_env_send?(), do: Registry.register(@registry, topic, false)
   end
 
-  def get_sockets do
-    State.get_sockets()
+  def remove_socket(topic) do
+    if should_env_send?(), do: Registry.unregister(@registry, topic)
   end
 
-  def stream(topics, items) do
-    if should_send?() do
-      Task.async(fn ->
-        :poolboy.transaction(
-          :streamer_worker,
-          &Worker.stream(&1, topics, items),
-          @timeout
-        )
+  def stream(topics, item) when is_list(topics) do
+    if should_env_send?() do
+      Enum.each(topics, fn t ->
+        spawn(fn -> do_stream(t, item) end)
       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
-    handle_should_send(@mix_env)
+      :ok
+    end
   end
 
-  defp handle_should_send(:test) do
-    case Process.whereis(:streamer_worker) do
+  def stream(topic, item) 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 %>

lib/pleroma/web/twitter_api/controllers/remote_follow_controller.ex

@@ -8,10 +8,12 @@ defmodule Pleroma.Web.TwitterAPI.RemoteFollowController do
   require Logger
 
   alias Pleroma.Activity
+  alias Pleroma.MFA
   alias Pleroma.Object.Fetcher
   alias Pleroma.Plugs.OAuthScopesPlug
   alias Pleroma.User
   alias Pleroma.Web.Auth.Authenticator
+  alias Pleroma.Web.Auth.TOTPAuthenticator
   alias Pleroma.Web.CommonAPI
 
   @status_types ["Article", "Event", "Note", "Video", "Page", "Question"]
@@ -68,6 +70,8 @@ defp is_status?(acct) do
 
   # POST  /ostatus_subscribe
   #
+  # adds a remote account in followers if user already is signed in.
+  #
   def do_follow(%{assigns: %{user: %User{} = user}} = conn, %{"user" => %{"id" => id}}) do
     with {:fetch_user, %User{} = followee} <- {:fetch_user, User.get_cached_by_id(id)},
          {:ok, _, _, _} <- CommonAPI.follow(user, followee) do
@@ -78,9 +82,33 @@ def do_follow(%{assigns: %{user: %User{} = user}} = conn, %{"user" => %{"id" =>
     end
   end
 
+  # POST  /ostatus_subscribe
+  #
+  # step 1.
+  # checks login\password and displays step 2 form of MFA if need.
+  #
   def do_follow(conn, %{"authorization" => %{"name" => _, "password" => _, "id" => id}}) do
-    with {:fetch_user, %User{} = followee} <- {:fetch_user, User.get_cached_by_id(id)},
+    with {_, %User{} = followee} <- {:fetch_user, User.get_cached_by_id(id)},
          {_, {:ok, user}, _} <- {:auth, Authenticator.get_user(conn), followee},
+         {_, _, _, false} <- {:mfa_required, followee, user, MFA.require?(user)},
+         {:ok, _, _, _} <- CommonAPI.follow(user, followee) do
+      redirect(conn, to: "/users/#{followee.id}")
+    else
+      error ->
+        handle_follow_error(conn, error)
+    end
+  end
+
+  # POST  /ostatus_subscribe
+  #
+  # step 2
+  # checks TOTP code. otherwise displays form with errors
+  #
+  def do_follow(conn, %{"mfa" => %{"code" => code, "token" => token, "id" => id}}) do
+    with {_, %User{} = followee} <- {:fetch_user, User.get_cached_by_id(id)},
+         {_, _, {:ok, %{user: user}}} <- {:mfa_token, followee, MFA.Token.validate(token)},
+         {_, _, _, {:ok, _}} <-
+           {:verify_mfa_code, followee, token, TOTPAuthenticator.verify(code, user)},
          {:ok, _, _, _} <- CommonAPI.follow(user, followee) do
       redirect(conn, to: "/users/#{followee.id}")
     else
@@ -94,6 +122,23 @@ def do_follow(%{assigns: %{user: nil}} = conn, _) do
     render(conn, "followed.html", %{error: "Insufficient permissions: follow | write:follows."})
   end
 
+  defp handle_follow_error(conn, {:mfa_token, followee, _} = _) do
+    render(conn, "follow_login.html", %{error: "Wrong username or password", followee: followee})
+  end
+
+  defp handle_follow_error(conn, {:verify_mfa_code, followee, token, _} = _) do
+    render(conn, "follow_mfa.html", %{
+      error: "Wrong authentication code",
+      followee: followee,
+      mfa_token: token
+    })
+  end
+
+  defp handle_follow_error(conn, {:mfa_required, followee, user, _} = _) do
+    {:ok, %{token: token}} = MFA.Token.create_token(user)
+    render(conn, "follow_mfa.html", %{followee: followee, mfa_token: token, error: false})
+  end
+
   defp handle_follow_error(conn, {:auth, _, followee} = _) do
     render(conn, "follow_login.html", %{error: "Wrong username or password", followee: followee})
   end

mix.exs

@@ -176,6 +176,7 @@ defp deps do
       {:quack, "~> 0.1.1"},
       {:joken, "~> 2.0"},
       {:benchee, "~> 1.0"},
+      {:pot, "~> 0.10.2"},
       {:esshd, "~> 0.1.0", runtime: Application.get_env(:esshd, :enabled, false)},
       {:ex_const, "~> 0.2"},
       {:plug_static_index_html, "~> 1.0.0"},

mix.lock

@@ -37,7 +37,7 @@
   "ex_const": {:hex, :ex_const, "0.2.4", "d06e540c9d834865b012a17407761455efa71d0ce91e5831e86881b9c9d82448", [:mix], [], "hexpm", "96fd346610cc992b8f896ed26a98be82ac4efb065a0578f334a32d60a3ba9767"},
   "ex_doc": {:hex, :ex_doc, "0.21.3", "857ec876b35a587c5d9148a2512e952e24c24345552259464b98bfbb883c7b42", [:mix], [{:earmark, "~> 1.4", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm", "0db1ee8d1547ab4877c5b5dffc6604ef9454e189928d5ba8967d4a58a801f161"},
   "ex_machina": {:hex, :ex_machina, "2.3.0", "92a5ad0a8b10ea6314b876a99c8c9e3f25f4dde71a2a835845b136b9adaf199a", [:mix], [{:ecto, "~> 2.2 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_sql, "~> 3.0", [hex: :ecto_sql, repo: "hexpm", optional: true]}], "hexpm", "b84f6af156264530b312a8ab98ac6088f6b77ae5fe2058305c81434aa01fbaf9"},
-  "ex_syslogger": {:hex, :ex_syslogger, "1.5.0", "bc936ee3fd13d9e592cb4c3a1e8a55fccd33b05e3aa7b185f211f3ed263ff8f0", [:mix], [{:poison, ">= 1.5.0", [hex: :poison, repo: "hexpm", optional: true]}, {:syslog, "~> 1.0.5", [hex: :syslog, repo: "hexpm", optional: false]}], "hexpm", "f3b4b184dcdd5f356b7c26c6cd72ab0918ba9dfb4061ccfaf519e562942af87b"},
+  "ex_syslogger": {:hex, :ex_syslogger, "1.5.2", "72b6aa2d47a236e999171f2e1ec18698740f40af0bd02c8c650bf5f1fd1bac79", [:mix], [{:poison, ">= 1.5.0", [hex: :poison, repo: "hexpm", optional: true]}, {:syslog, "~> 1.1.0", [hex: :syslog, repo: "hexpm", optional: false]}], "hexpm", "ab9fab4136dbc62651ec6f16fa4842f10cf02ab4433fa3d0976c01be99398399"},
   "excoveralls": {:hex, :excoveralls, "0.12.2", "a513defac45c59e310ac42fcf2b8ae96f1f85746410f30b1ff2b710a4b6cd44b", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "151c476331d49b45601ffc45f43cb3a8beb396b02a34e3777fea0ad34ae57d89"},
   "fast_html": {:hex, :fast_html, "1.0.3", "2cc0d4b68496266a1530e0c852cafeaede0bd10cfdee26fda50dc696c203162f", [:make, :mix], [], "hexpm", "ab3d782b639d3c4655fbaec0f9d032c91f8cab8dd791ac7469c2381bc7c32f85"},
   "fast_sanitize": {:hex, :fast_sanitize, "0.1.7", "2a7cd8734c88a2de6de55022104f8a3b87f1fdbe8bbf131d9049764b53d50d0d", [:mix], [{:fast_html, "~> 1.0", [hex: :fast_html, repo: "hexpm", optional: false]}, {:plug, "~> 1.8", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "f39fe8ea08fbac17487c30bf09b7d9f3e12472e51fb07a88ffeb8fd17da8ab67"},
@@ -89,6 +89,7 @@
   "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], [], "hexpm", "fec8660eb7733ee4117b85f55799fd3833eb769a6df71ccf8903e8dc5447cfce"},
   "poolboy": {:hex, :poolboy, "1.5.2", "392b007a1693a64540cead79830443abf5762f5d30cf50bc95cb2c1aaafa006b", [:rebar3], [], "hexpm", "dad79704ce5440f3d5a3681c8590b9dc25d1a561e8f5a9c995281012860901e3"},
   "postgrex": {:hex, :postgrex, "0.15.3", "5806baa8a19a68c4d07c7a624ccdb9b57e89cbc573f1b98099e3741214746ae4", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.5", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "4737ce62a31747b4c63c12b20c62307e51bb4fcd730ca0c32c280991e0606c90"},
+  "pot": {:hex, :pot, "0.10.2", "9895c83bcff8cd22d9f5bc79dfc88a188176b261b618ad70d93faf5c5ca36e67", [:rebar3], [], "hexpm", "ac589a8e296b7802681e93cd0a436faec117ea63e9916709c628df31e17e91e2"},
   "prometheus": {:hex, :prometheus, "4.5.0", "8f4a2246fe0beb50af0f77c5e0a5bb78fe575c34a9655d7f8bc743aad1c6bf76", [:mix, :rebar3], [], "hexpm", "679b5215480fff612b8351f45c839d995a07ce403e42ff02f1c6b20960d41a4e"},
   "prometheus_ecto": {:hex, :prometheus_ecto, "1.4.3", "3dd4da1812b8e0dbee81ea58bb3b62ed7588f2eae0c9e97e434c46807ff82311", [:mix], [{:ecto, "~> 2.0 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:prometheus_ex, "~> 1.1 or ~> 2.0 or ~> 3.0", [hex: :prometheus_ex, repo: "hexpm", optional: false]}], "hexpm", "8d66289f77f913b37eda81fd287340c17e61a447549deb28efc254532b2bed82"},
   "prometheus_ex": {:hex, :prometheus_ex, "3.0.5", "fa58cfd983487fc5ead331e9a3e0aa622c67232b3ec71710ced122c4c453a02f", [:mix], [{:prometheus, "~> 4.0", [hex: :prometheus, repo: "hexpm", optional: false]}], "hexpm", "9fd13404a48437e044b288b41f76e64acd9735fb8b0e3809f494811dfa66d0fb"},
@@ -102,7 +103,7 @@
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.5", "6eaf7ad16cb568bb01753dbbd7a95ff8b91c7979482b95f38443fe2c8852a79b", [:make, :mix, :rebar3], [], "hexpm", "13104d7897e38ed7f044c4de953a6c28597d1c952075eb2e328bc6d6f2bfc496"},
   "sweet_xml": {:hex, :sweet_xml, "0.6.6", "fc3e91ec5dd7c787b6195757fbcf0abc670cee1e4172687b45183032221b66b8", [:mix], [], "hexpm", "2e1ec458f892ffa81f9f8386e3f35a1af6db7a7a37748a64478f13163a1f3573"},
   "swoosh": {:hex, :swoosh, "0.23.5", "bfd9404bbf5069b1be2ffd317923ce57e58b332e25dbca2a35dedd7820dfee5a", [:mix], [{:cowboy, "~> 1.0.1 or ~> 1.1 or ~> 2.4", [hex: :cowboy, repo: "hexpm", optional: true]}, {:gen_smtp, "~> 0.13", [hex: :gen_smtp, repo: "hexpm", optional: true]}, {:hackney, "~> 1.9", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mail, "~> 0.2", [hex: :mail, repo: "hexpm", optional: true]}, {:mime, "~> 1.1", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_cowboy, ">= 1.0.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}], "hexpm", "e3928e1d2889a308aaf3e42755809ac21cffd77cb58eef01cbfdab4ce2fd1e21"},
-  "syslog": {:hex, :syslog, "1.0.6", "995970c9aa7feb380ac493302138e308d6e04fd57da95b439a6df5bb3bf75076", [:rebar3], [], "hexpm", "769ddfabd0d2a16f3f9c17eb7509951e0ca4f68363fb26f2ee51a8ec4a49881a"},
+  "syslog": {:hex, :syslog, "1.1.0", "6419a232bea84f07b56dc575225007ffe34d9fdc91abe6f1b2f254fd71d8efc2", [:rebar3], [], "hexpm", "4c6a41373c7e20587be33ef841d3de6f3beba08519809329ecc4d27b15b659e1"},
   "telemetry": {:hex, :telemetry, "0.4.1", "ae2718484892448a24470e6aa341bc847c3277bfb8d4e9289f7474d752c09c7f", [:rebar3], [], "hexpm", "4738382e36a0a9a2b6e25d67c960e40e1a2c95560b9f936d8e29de8cd858480f"},
   "tesla": {:git, "https://git.pleroma.social/pleroma/elixir-libraries/tesla.git", "61b7503cef33f00834f78ddfafe0d5d9dec2270b", [ref: "61b7503cef33f00834f78ddfafe0d5d9dec2270b"]},
   "timex": {:hex, :timex, "3.6.1", "efdf56d0e67a6b956cc57774353b0329c8ab7726766a11547e529357ffdc1d56", [:mix], [{:combine, "~> 0.10", [hex: :combine, repo: "hexpm", optional: false]}, {:gettext, "~> 0.10", [hex: :gettext, repo: "hexpm", optional: false]}, {:tzdata, "~> 0.1.8 or ~> 0.5 or ~> 1.0.0", [hex: :tzdata, repo: "hexpm", optional: false]}], "hexpm", "f354efb2400dd7a80fd9eb6c8419068c4f632da4ac47f3d8822d6e33f08bc852"},

priv/repo/migrations/20190506054542_add_multi_factor_authentication_settings_to_user.exs

@@ -0,0 +1,9 @@
+defmodule Pleroma.Repo.Migrations.AddMultiFactorAuthenticationSettingsToUser do
+  use Ecto.Migration
+
+  def change do
+    alter table(:users) do
+      add(:multi_factor_authentication_settings, :map, default: %{})
+    end
+  end
+end

priv/repo/migrations/20190508193213_create_mfa_tokens.exs

@@ -0,0 +1,16 @@
+defmodule Pleroma.Repo.Migrations.CreateMfaTokens do
+  use Ecto.Migration
+
+  def change do
+    create table(:mfa_tokens) do
+      add(:user_id, references(:users, type: :uuid, on_delete: :delete_all))
+      add(:authorization_id, references(:oauth_authorizations, on_delete: :delete_all))
+      add(:token, :string)
+      add(:valid_until, :naive_datetime_usec)
+
+      timestamps()
+    end
+
+    create(unique_index(:mfa_tokens, :token))
+  end
+end

test/integration/mastodon_websocket_test.exs

@@ -12,17 +12,14 @@ defmodule Pleroma.Integration.MastodonWebsocketTest do
   alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.OAuth
 
+  @moduletag needs_streamer: true, capture_log: true
+
   @path Pleroma.Web.Endpoint.url()
         |> URI.parse()
         |> Map.put(:scheme, "ws")
         |> Map.put(:path, "/api/v1/streaming")
         |> URI.to_string()
 
-  setup_all do
-    start_supervised(Pleroma.Web.Streamer.supervisor())
-    :ok
-  end
-
   def start_socket(qs \\ nil, headers \\ []) do
     path =
       case qs do

test/mfa/backup_codes_test.exs

@@ -0,0 +1,11 @@
+defmodule Pleroma.MFA.BackupCodesTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.MFA.BackupCodes
+
+  test "generate backup codes" do
+    codes = BackupCodes.generate(number_of_codes: 2, length: 4)
+
+    assert [<<_::bytes-size(4)>>, <<_::bytes-size(4)>>] = codes
+  end
+end

test/mfa/totp_test.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.MFA.TOTPTest do
+  use Pleroma.DataCase
+
+  alias Pleroma.MFA.TOTP
+
+  test "create provisioning_uri to generate qrcode" do
+    uri =
+      TOTP.provisioning_uri("test-secrcet", "test@example.com",
+        issuer: "Plerome-42",
+        digits: 8,
+        period: 60
+      )
+
+    assert uri ==
+             "otpauth://totp/test@example.com?digits=8&issuer=Plerome-42&period=60&secret=test-secrcet"
+  end
+end

test/mfa_test.exs

@@ -0,0 +1,53 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.MFATest do
+  use Pleroma.DataCase
+
+  import Pleroma.Factory
+  alias Comeonin.Pbkdf2
+  alias Pleroma.MFA
+
+  describe "mfa_settings" do
+    test "returns settings user's" do
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %MFA.Settings{
+            enabled: true,
+            totp: %MFA.Settings.TOTP{secret: "xx", confirmed: true}
+          }
+        )
+
+      settings = MFA.mfa_settings(user)
+      assert match?(^settings, %{enabled: true, totp: true})
+    end
+  end
+
+  describe "generate backup codes" do
+    test "returns backup codes" do
+      user = insert(:user)
+
+      {:ok, [code1, code2]} = MFA.generate_backup_codes(user)
+      updated_user = refresh_record(user)
+      [hash1, hash2] = updated_user.multi_factor_authentication_settings.backup_codes
+      assert Pbkdf2.checkpw(code1, hash1)
+      assert Pbkdf2.checkpw(code2, hash2)
+    end
+  end
+
+  describe "invalidate_backup_code" do
+    test "invalid used code" do
+      user = insert(:user)
+
+      {:ok, _} = MFA.generate_backup_codes(user)
+      user = refresh_record(user)
+      assert length(user.multi_factor_authentication_settings.backup_codes) == 2
+      [hash_code | _] = user.multi_factor_authentication_settings.backup_codes
+
+      {:ok, user} = MFA.invalidate_backup_code(user, hash_code)
+
+      assert length(user.multi_factor_authentication_settings.backup_codes) == 1
+    end
+  end
+end

test/notification_test.exs

@@ -162,14 +162,18 @@ test "does not create a notification for subscribed users if status is a reply"
     @tag needs_streamer: true
     test "it creates a notification for user and send to the 'user' and the 'user:notification' stream" do
       user = insert(:user)
-      task = Task.async(fn -> assert_receive {:text, _}, 4_000 end)
-      task_user_notification = Task.async(fn -> assert_receive {:text, _}, 4_000 end)
-      Streamer.add_socket("user", %{transport_pid: task.pid, assigns: %{user: user}})
 
-      Streamer.add_socket(
-        "user:notification",
-        %{transport_pid: task_user_notification.pid, assigns: %{user: user}}
-      )
+      task =
+        Task.async(fn ->
+          Streamer.add_socket("user", user)
+          assert_receive {:render_with_user, _, _, _}, 4_000
+        end)
+
+      task_user_notification =
+        Task.async(fn ->
+          Streamer.add_socket("user:notification", user)
+          assert_receive {:render_with_user, _, _, _}, 4_000
+        end)
 
       activity = insert(:note_activity)
 

test/plugs/ensure_authenticated_plug_test.exs

@@ -24,6 +24,31 @@ test "it continues if a user is assigned", %{conn: conn} do
     end
   end
 
+  test "it halts if user is assigned and MFA enabled", %{conn: conn} do
+    conn =
+      conn
+      |> assign(:user, %User{multi_factor_authentication_settings: %{enabled: true}})
+      |> assign(:auth_credentials, %{password: "xd-42"})
+      |> EnsureAuthenticatedPlug.call(%{})
+
+    assert conn.status == 403
+    assert conn.halted == true
+
+    assert conn.resp_body ==
+             "{\"error\":\"Two-factor authentication enabled, you must use a access token.\"}"
+  end
+
+  test "it continues if user is assigned and MFA disabled", %{conn: conn} do
+    conn =
+      conn
+      |> assign(:user, %User{multi_factor_authentication_settings: %{enabled: false}})
+      |> assign(:auth_credentials, %{password: "xd-42"})
+      |> EnsureAuthenticatedPlug.call(%{})
+
+    refute conn.status == 403
+    refute conn.halted
+  end
+
   describe "with :if_func / :unless_func options" do
     setup do
       %{

test/support/builders/activity_builder.ex

@@ -21,7 +21,15 @@ def build(data \\ %{}, opts \\ %{}) do
 
   def insert(data \\ %{}, opts \\ %{}) do
     activity = build(data, opts)
-    ActivityPub.insert(activity)
+
+    case ActivityPub.insert(activity) do
+      ok = {:ok, activity} ->
+        ActivityPub.notify_and_stream(activity)
+        ok
+
+      error ->
+        error
+    end
   end
 
   def insert_list(times, data \\ %{}, opts \\ %{}) do

test/support/builders/user_builder.ex

@@ -11,6 +11,7 @@ def build(data \\ %{}) do
       bio: "A tester.",
       ap_id: "some id",
       last_digest_emailed_at: NaiveDateTime.truncate(NaiveDateTime.utc_now(), :second),
+      multi_factor_authentication_settings: %Pleroma.MFA.Settings{},
       notification_settings: %Pleroma.User.NotificationSetting{}
     }
 

test/support/conn_case.ex

@@ -139,7 +139,11 @@ defp ensure_federating_or_authenticated(conn, url, user) do
     end
 
     if tags[:needs_streamer] do
-      start_supervised(Pleroma.Web.Streamer.supervisor())
+      start_supervised(%{
+        id: Pleroma.Web.Streamer.registry(),
+        start:
+          {Registry, :start_link, [[keys: :duplicate, name: Pleroma.Web.Streamer.registry()]]}
+      })
     end
 
     {:ok, conn: Phoenix.ConnTest.build_conn()}

test/support/data_case.ex

@@ -40,7 +40,11 @@ defmodule Pleroma.DataCase do
     end
 
     if tags[:needs_streamer] do
-      start_supervised(Pleroma.Web.Streamer.supervisor())
+      start_supervised(%{
+        id: Pleroma.Web.Streamer.registry(),
+        start:
+          {Registry, :start_link, [[keys: :duplicate, name: Pleroma.Web.Streamer.registry()]]}
+      })
     end
 
     :ok

test/support/factory.ex

@@ -33,7 +33,8 @@ def user_factory do
       bio: sequence(:bio, &"Tester Number #{&1}"),
       last_digest_emailed_at: NaiveDateTime.utc_now(),
       last_refreshed_at: NaiveDateTime.utc_now(),
-      notification_settings: %Pleroma.User.NotificationSetting{}
+      notification_settings: %Pleroma.User.NotificationSetting{},
+      multi_factor_authentication_settings: %Pleroma.MFA.Settings{}
     }
 
     %{
@@ -422,4 +423,13 @@ def marker_factory do
       last_read_id: "1"
     }
   end
+
+  def mfa_token_factory do
+    %Pleroma.MFA.Token{
+      token: :crypto.strong_rand_bytes(32) |> Base.url_encode64(padding: false),
+      authorization: build(:oauth_authorization),
+      valid_until: NaiveDateTime.add(NaiveDateTime.utc_now(), 60 * 10),
+      user: build(:user)
+    }
+  end
 end

test/user_search_test.exs

@@ -172,6 +172,7 @@ test "works with URIs" do
         |> Map.put(:search_rank, nil)
         |> Map.put(:search_type, nil)
         |> Map.put(:last_digest_emailed_at, nil)
+        |> Map.put(:multi_factor_authentication_settings, nil)
         |> Map.put(:notification_settings, nil)
 
       assert user == expected

test/web/admin_api/admin_api_controller_test.exs

@@ -14,6 +14,7 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
   alias Pleroma.Config
   alias Pleroma.ConfigDB
   alias Pleroma.HTML
+  alias Pleroma.MFA
   alias Pleroma.ModerationLog
   alias Pleroma.Repo
   alias Pleroma.ReportNote
@@ -1278,6 +1279,38 @@ test "PATCH /api/pleroma/admin/users/:nickname/toggle_activation", %{admin: admi
              "@#{admin.nickname} deactivated users: @#{user.nickname}"
   end
 
+  describe "PUT disable_mfa" do
+    test "returns 200 and disable 2fa", %{conn: conn} do
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %MFA.Settings{
+            enabled: true,
+            totp: %MFA.Settings.TOTP{secret: "otp_secret", confirmed: true}
+          }
+        )
+
+      response =
+        conn
+        |> put("/api/pleroma/admin/users/disable_mfa", %{nickname: user.nickname})
+        |> json_response(200)
+
+      assert response == user.nickname
+      mfa_settings = refresh_record(user).multi_factor_authentication_settings
+
+      refute mfa_settings.enabled
+      refute mfa_settings.totp.confirmed
+    end
+
+    test "returns 404 if user not found", %{conn: conn} do
+      response =
+        conn
+        |> put("/api/pleroma/admin/users/disable_mfa", %{nickname: "nickname"})
+        |> json_response(404)
+
+      assert response == "Not found"
+    end
+  end
+
   describe "POST /api/pleroma/admin/users/invite_token" do
     test "without options", %{conn: conn} do
       conn = post(conn, "/api/pleroma/admin/users/invite_token")

test/web/auth/pleroma_authenticator_test.exs

@@ -0,0 +1,43 @@
+# 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.PleromaAuthenticatorTest do
+  use Pleroma.Web.ConnCase
+
+  alias Pleroma.Web.Auth.PleromaAuthenticator
+  import Pleroma.Factory
+
+  setup do
+    password = "testpassword"
+    name = "AgentSmith"
+    user = insert(:user, nickname: name, password_hash: Comeonin.Pbkdf2.hashpwsalt(password))
+    {:ok, [user: user, name: name, password: password]}
+  end
+
+  test "get_user/authorization", %{user: user, name: name, password: password} do
+    params = %{"authorization" => %{"name" => name, "password" => password}}
+    res = PleromaAuthenticator.get_user(%Plug.Conn{params: params})
+
+    assert {:ok, user} == res
+  end
+
+  test "get_user/authorization with invalid password", %{name: name} do
+    params = %{"authorization" => %{"name" => name, "password" => "password"}}
+    res = PleromaAuthenticator.get_user(%Plug.Conn{params: params})
+
+    assert {:error, {:checkpw, false}} == res
+  end
+
+  test "get_user/grant_type_password", %{user: user, name: name, password: password} do
+    params = %{"grant_type" => "password", "username" => name, "password" => password}
+    res = PleromaAuthenticator.get_user(%Plug.Conn{params: params})
+
+    assert {:ok, user} == res
+  end
+
+  test "error credintails" do
+    res = PleromaAuthenticator.get_user(%Plug.Conn{params: %{}})
+    assert {:error, :invalid_credentials} == res
+  end
+end

test/web/auth/totp_authenticator_test.exs

@@ -0,0 +1,51 @@
+# 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.TOTPAuthenticatorTest do
+  use Pleroma.Web.ConnCase
+
+  alias Pleroma.MFA
+  alias Pleroma.MFA.BackupCodes
+  alias Pleroma.MFA.TOTP
+  alias Pleroma.Web.Auth.TOTPAuthenticator
+
+  import Pleroma.Factory
+
+  test "verify token" do
+    otp_secret = TOTP.generate_secret()
+    otp_token = TOTP.generate_token(otp_secret)
+
+    user =
+      insert(:user,
+        multi_factor_authentication_settings: %MFA.Settings{
+          enabled: true,
+          totp: %MFA.Settings.TOTP{secret: otp_secret, confirmed: true}
+        }
+      )
+
+    assert TOTPAuthenticator.verify(otp_token, user) == {:ok, :pass}
+    assert TOTPAuthenticator.verify(nil, user) == {:error, :invalid_token}
+    assert TOTPAuthenticator.verify("", user) == {:error, :invalid_token}
+  end
+
+  test "checks backup codes" do
+    [code | _] = backup_codes = BackupCodes.generate()
+
+    hashed_codes =
+      backup_codes
+      |> Enum.map(&Comeonin.Pbkdf2.hashpwsalt(&1))
+
+    user =
+      insert(:user,
+        multi_factor_authentication_settings: %MFA.Settings{
+          enabled: true,
+          backup_codes: hashed_codes,
+          totp: %MFA.Settings.TOTP{secret: "otp_secret", confirmed: true}
+        }
+      )
+
+    assert TOTPAuthenticator.verify_recovery_code(user, code) == {:ok, :pass}
+    refute TOTPAuthenticator.verify_recovery_code(code, refresh_record(user)) == {:ok, :pass}
+  end
+end

test/web/mastodon_api/controllers/poll_controller_test.exs

@@ -24,7 +24,7 @@ test "returns poll entity for object id", %{user: user, conn: conn} do
 
       conn = get(conn, "/api/v1/polls/#{object.id}")
 
-      response = json_response(conn, 200)
+      response = json_response_and_validate_schema(conn, 200)
       id = to_string(object.id)
       assert %{"id" => ^id, "expired" => false, "multiple" => false} = response
     end
@@ -43,7 +43,7 @@ test "does not expose polls for private statuses", %{conn: conn} do
 
       conn = get(conn, "/api/v1/polls/#{object.id}")
 
-      assert json_response(conn, 404)
+      assert json_response_and_validate_schema(conn, 404)
     end
   end
 
@@ -65,9 +65,12 @@ test "votes are added to the poll", %{conn: conn} do
 
       object = Object.normalize(activity)
 
-      conn = post(conn, "/api/v1/polls/#{object.id}/votes", %{"choices" => [0, 1, 2]})
+      conn =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/v1/polls/#{object.id}/votes", %{"choices" => [0, 1, 2]})
 
-      assert json_response(conn, 200)
+      assert json_response_and_validate_schema(conn, 200)
       object = Object.get_by_id(object.id)
 
       assert Enum.all?(object.data["anyOf"], fn %{"replies" => %{"totalItems" => total_items}} ->
@@ -85,8 +88,9 @@ test "author can't vote", %{user: user, conn: conn} do
       object = Object.normalize(activity)
 
       assert conn
+             |> put_req_header("content-type", "application/json")
              |> post("/api/v1/polls/#{object.id}/votes", %{"choices" => [1]})
-             |> json_response(422) == %{"error" => "Poll's author can't vote"}
+             |> json_response_and_validate_schema(422) == %{"error" => "Poll's author can't vote"}
 
       object = Object.get_by_id(object.id)
 
@@ -105,8 +109,9 @@ test "does not allow multiple choices on a single-choice question", %{conn: conn
       object = Object.normalize(activity)
 
       assert conn
+             |> put_req_header("content-type", "application/json")
              |> post("/api/v1/polls/#{object.id}/votes", %{"choices" => [0, 1]})
-             |> json_response(422) == %{"error" => "Too many choices"}
+             |> json_response_and_validate_schema(422) == %{"error" => "Too many choices"}
 
       object = Object.get_by_id(object.id)
 
@@ -126,15 +131,21 @@ test "does not allow choice index to be greater than options count", %{conn: con
 
       object = Object.normalize(activity)
 
-      conn = post(conn, "/api/v1/polls/#{object.id}/votes", %{"choices" => [2]})
+      conn =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/v1/polls/#{object.id}/votes", %{"choices" => [2]})
 
-      assert json_response(conn, 422) == %{"error" => "Invalid indices"}
+      assert json_response_and_validate_schema(conn, 422) == %{"error" => "Invalid indices"}
     end
 
     test "returns 404 error when object is not exist", %{conn: conn} do
-      conn = post(conn, "/api/v1/polls/1/votes", %{"choices" => [0]})
+      conn =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/v1/polls/1/votes", %{"choices" => [0]})
 
-      assert json_response(conn, 404) == %{"error" => "Record not found"}
+      assert json_response_and_validate_schema(conn, 404) == %{"error" => "Record not found"}
     end
 
     test "returns 404 when poll is private and not available for user", %{conn: conn} do
@@ -149,9 +160,12 @@ test "returns 404 when poll is private and not available for user", %{conn: conn
 
       object = Object.normalize(activity)
 
-      conn = post(conn, "/api/v1/polls/#{object.id}/votes", %{"choices" => [0]})
+      conn =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/v1/polls/#{object.id}/votes", %{"choices" => [0]})
 
-      assert json_response(conn, 404) == %{"error" => "Record not found"}
+      assert json_response_and_validate_schema(conn, 404) == %{"error" => "Record not found"}
     end
   end
 end

test/web/oauth/mfa_controller_test.exs

@@ -0,0 +1,306 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.OAuth.MFAControllerTest do
+  use Pleroma.Web.ConnCase
+  import Pleroma.Factory
+
+  alias Pleroma.MFA
+  alias Pleroma.MFA.BackupCodes
+  alias Pleroma.MFA.TOTP
+  alias Pleroma.Repo
+  alias Pleroma.Web.OAuth.Authorization
+  alias Pleroma.Web.OAuth.OAuthController
+
+  setup %{conn: conn} do
+    otp_secret = TOTP.generate_secret()
+
+    user =
+      insert(:user,
+        multi_factor_authentication_settings: %MFA.Settings{
+          enabled: true,
+          backup_codes: [Comeonin.Pbkdf2.hashpwsalt("test-code")],
+          totp: %MFA.Settings.TOTP{secret: otp_secret, confirmed: true}
+        }
+      )
+
+    app = insert(:oauth_app)
+    {:ok, conn: conn, user: user, app: app}
+  end
+
+  describe "show" do
+    setup %{conn: conn, user: user, app: app} do
+      mfa_token =
+        insert(:mfa_token,
+          user: user,
+          authorization: build(:oauth_authorization, app: app, scopes: ["write"])
+        )
+
+      {:ok, conn: conn, mfa_token: mfa_token}
+    end
+
+    test "GET /oauth/mfa renders mfa forms", %{conn: conn, mfa_token: mfa_token} do
+      conn =
+        get(
+          conn,
+          "/oauth/mfa",
+          %{
+            "mfa_token" => mfa_token.token,
+            "state" => "a_state",
+            "redirect_uri" => "http://localhost:8080/callback"
+          }
+        )
+
+      assert response = html_response(conn, 200)
+      assert response =~ "Two-factor authentication"
+      assert response =~ mfa_token.token
+      assert response =~ "http://localhost:8080/callback"
+    end
+
+    test "GET /oauth/mfa renders mfa recovery forms", %{conn: conn, mfa_token: mfa_token} do
+      conn =
+        get(
+          conn,
+          "/oauth/mfa",
+          %{
+            "mfa_token" => mfa_token.token,
+            "state" => "a_state",
+            "redirect_uri" => "http://localhost:8080/callback",
+            "challenge_type" => "recovery"
+          }
+        )
+
+      assert response = html_response(conn, 200)
+      assert response =~ "Two-factor recovery"
+      assert response =~ mfa_token.token
+      assert response =~ "http://localhost:8080/callback"
+    end
+  end
+
+  describe "verify" do
+    setup %{conn: conn, user: user, app: app} do
+      mfa_token =
+        insert(:mfa_token,
+          user: user,
+          authorization: build(:oauth_authorization, app: app, scopes: ["write"])
+        )
+
+      {:ok, conn: conn, user: user, mfa_token: mfa_token, app: app}
+    end
+
+    test "POST /oauth/mfa/verify, verify totp code", %{
+      conn: conn,
+      user: user,
+      mfa_token: mfa_token,
+      app: app
+    } do
+      otp_token = TOTP.generate_token(user.multi_factor_authentication_settings.totp.secret)
+
+      conn =
+        conn
+        |> post("/oauth/mfa/verify", %{
+          "mfa" => %{
+            "mfa_token" => mfa_token.token,
+            "challenge_type" => "totp",
+            "code" => otp_token,
+            "state" => "a_state",
+            "redirect_uri" => OAuthController.default_redirect_uri(app)
+          }
+        })
+
+      target = redirected_to(conn)
+      target_url = %URI{URI.parse(target) | query: nil} |> URI.to_string()
+      query = URI.parse(target).query |> URI.query_decoder() |> Map.new()
+      assert %{"state" => "a_state", "code" => code} = query
+      assert target_url == OAuthController.default_redirect_uri(app)
+      auth = Repo.get_by(Authorization, token: code)
+      assert auth.scopes == ["write"]
+    end
+
+    test "POST /oauth/mfa/verify, verify recovery code", %{
+      conn: conn,
+      mfa_token: mfa_token,
+      app: app
+    } do
+      conn =
+        conn
+        |> post("/oauth/mfa/verify", %{
+          "mfa" => %{
+            "mfa_token" => mfa_token.token,
+            "challenge_type" => "recovery",
+            "code" => "test-code",
+            "state" => "a_state",
+            "redirect_uri" => OAuthController.default_redirect_uri(app)
+          }
+        })
+
+      target = redirected_to(conn)
+      target_url = %URI{URI.parse(target) | query: nil} |> URI.to_string()
+      query = URI.parse(target).query |> URI.query_decoder() |> Map.new()
+      assert %{"state" => "a_state", "code" => code} = query
+      assert target_url == OAuthController.default_redirect_uri(app)
+      auth = Repo.get_by(Authorization, token: code)
+      assert auth.scopes == ["write"]
+    end
+  end
+
+  describe "challenge/totp" do
+    test "returns access token with valid code", %{conn: conn, user: user, app: app} do
+      otp_token = TOTP.generate_token(user.multi_factor_authentication_settings.totp.secret)
+
+      mfa_token =
+        insert(:mfa_token,
+          user: user,
+          authorization: build(:oauth_authorization, app: app, scopes: ["write"])
+        )
+
+      response =
+        conn
+        |> post("/oauth/mfa/challenge", %{
+          "mfa_token" => mfa_token.token,
+          "challenge_type" => "totp",
+          "code" => otp_token,
+          "client_id" => app.client_id,
+          "client_secret" => app.client_secret
+        })
+        |> json_response(:ok)
+
+      ap_id = user.ap_id
+
+      assert match?(
+               %{
+                 "access_token" => _,
+                 "expires_in" => 600,
+                 "me" => ^ap_id,
+                 "refresh_token" => _,
+                 "scope" => "write",
+                 "token_type" => "Bearer"
+               },
+               response
+             )
+    end
+
+    test "returns errors when mfa token invalid", %{conn: conn, user: user, app: app} do
+      otp_token = TOTP.generate_token(user.multi_factor_authentication_settings.totp.secret)
+
+      response =
+        conn
+        |> post("/oauth/mfa/challenge", %{
+          "mfa_token" => "XXX",
+          "challenge_type" => "totp",
+          "code" => otp_token,
+          "client_id" => app.client_id,
+          "client_secret" => app.client_secret
+        })
+        |> json_response(400)
+
+      assert response == %{"error" => "Invalid code"}
+    end
+
+    test "returns error when otp code is invalid", %{conn: conn, user: user, app: app} do
+      mfa_token = insert(:mfa_token, user: user)
+
+      response =
+        conn
+        |> post("/oauth/mfa/challenge", %{
+          "mfa_token" => mfa_token.token,
+          "challenge_type" => "totp",
+          "code" => "XXX",
+          "client_id" => app.client_id,
+          "client_secret" => app.client_secret
+        })
+        |> json_response(400)
+
+      assert response == %{"error" => "Invalid code"}
+    end
+
+    test "returns error when client credentails is wrong ", %{conn: conn, user: user} do
+      otp_token = TOTP.generate_token(user.multi_factor_authentication_settings.totp.secret)
+      mfa_token = insert(:mfa_token, user: user)
+
+      response =
+        conn
+        |> post("/oauth/mfa/challenge", %{
+          "mfa_token" => mfa_token.token,
+          "challenge_type" => "totp",
+          "code" => otp_token,
+          "client_id" => "xxx",
+          "client_secret" => "xxx"
+        })
+        |> json_response(400)
+
+      assert response == %{"error" => "Invalid code"}
+    end
+  end
+
+  describe "challenge/recovery" do
+    setup %{conn: conn} do
+      app = insert(:oauth_app)
+      {:ok, conn: conn, app: app}
+    end
+
+    test "returns access token with valid code", %{conn: conn, app: app} do
+      otp_secret = TOTP.generate_secret()
+
+      [code | _] = backup_codes = BackupCodes.generate()
+
+      hashed_codes =
+        backup_codes
+        |> Enum.map(&Comeonin.Pbkdf2.hashpwsalt(&1))
+
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %MFA.Settings{
+            enabled: true,
+            backup_codes: hashed_codes,
+            totp: %MFA.Settings.TOTP{secret: otp_secret, confirmed: true}
+          }
+        )
+
+      mfa_token =
+        insert(:mfa_token,
+          user: user,
+          authorization: build(:oauth_authorization, app: app, scopes: ["write"])
+        )
+
+      response =
+        conn
+        |> post("/oauth/mfa/challenge", %{
+          "mfa_token" => mfa_token.token,
+          "challenge_type" => "recovery",
+          "code" => code,
+          "client_id" => app.client_id,
+          "client_secret" => app.client_secret
+        })
+        |> json_response(:ok)
+
+      ap_id = user.ap_id
+
+      assert match?(
+               %{
+                 "access_token" => _,
+                 "expires_in" => 600,
+                 "me" => ^ap_id,
+                 "refresh_token" => _,
+                 "scope" => "write",
+                 "token_type" => "Bearer"
+               },
+               response
+             )
+
+      error_response =
+        conn
+        |> post("/oauth/mfa/challenge", %{
+          "mfa_token" => mfa_token.token,
+          "challenge_type" => "recovery",
+          "code" => code,
+          "client_id" => app.client_id,
+          "client_secret" => app.client_secret
+        })
+        |> json_response(400)
+
+      assert error_response == %{"error" => "Invalid code"}
+    end
+  end
+end

test/web/oauth/oauth_controller_test.exs

@@ -6,6 +6,8 @@ defmodule Pleroma.Web.OAuth.OAuthControllerTest do
   use Pleroma.Web.ConnCase
   import Pleroma.Factory
 
+  alias Pleroma.MFA
+  alias Pleroma.MFA.TOTP
   alias Pleroma.Repo
   alias Pleroma.User
   alias Pleroma.Web.OAuth.Authorization
@@ -604,6 +606,41 @@ test "redirects with oauth authorization, " <>
       end
     end
 
+    test "redirect to on two-factor auth page" do
+      otp_secret = TOTP.generate_secret()
+
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %MFA.Settings{
+            enabled: true,
+            totp: %MFA.Settings.TOTP{secret: otp_secret, confirmed: true}
+          }
+        )
+
+      app = insert(:oauth_app, scopes: ["read", "write", "follow"])
+
+      conn =
+        build_conn()
+        |> post("/oauth/authorize", %{
+          "authorization" => %{
+            "name" => user.nickname,
+            "password" => "test",
+            "client_id" => app.client_id,
+            "redirect_uri" => app.redirect_uris,
+            "scope" => "read write",
+            "state" => "statepassed"
+          }
+        })
+
+      result = html_response(conn, 200)
+
+      mfa_token = Repo.get_by(MFA.Token, user_id: user.id)
+      assert result =~ app.redirect_uris
+      assert result =~ "statepassed"
+      assert result =~ mfa_token.token
+      assert result =~ "Two-factor authentication"
+    end
+
     test "returns 401 for wrong credentials", %{conn: conn} do
       user = insert(:user)
       app = insert(:oauth_app)
@@ -735,6 +772,46 @@ test "issues a token for `password` grant_type with valid credentials, with full
       assert token.scopes == app.scopes
     end
 
+    test "issues a mfa token for `password` grant_type, when MFA enabled" do
+      password = "testpassword"
+      otp_secret = TOTP.generate_secret()
+
+      user =
+        insert(:user,
+          password_hash: Comeonin.Pbkdf2.hashpwsalt(password),
+          multi_factor_authentication_settings: %MFA.Settings{
+            enabled: true,
+            totp: %MFA.Settings.TOTP{secret: otp_secret, confirmed: true}
+          }
+        )
+
+      app = insert(:oauth_app, scopes: ["read", "write"])
+
+      response =
+        build_conn()
+        |> post("/oauth/token", %{
+          "grant_type" => "password",
+          "username" => user.nickname,
+          "password" => password,
+          "client_id" => app.client_id,
+          "client_secret" => app.client_secret
+        })
+        |> json_response(403)
+
+      assert match?(
+               %{
+                 "supported_challenge_types" => "totp",
+                 "mfa_token" => _,
+                 "error" => "mfa_required"
+               },
+               response
+             )
+
+      token = Repo.get_by(MFA.Token, token: response["mfa_token"])
+      assert token.user_id == user.id
+      assert token.authorization_id
+    end
+
     test "issues a token for request with HTTP basic auth client credentials" do
       user = insert(:user)
       app = insert(:oauth_app, scopes: ["scope1", "scope2", "scope3"])

test/web/pleroma_api/controllers/two_factor_authentication_controller_test.exs

@@ -0,0 +1,260 @@
+defmodule Pleroma.Web.PleromaAPI.TwoFactorAuthenticationControllerTest do
+  use Pleroma.Web.ConnCase
+
+  import Pleroma.Factory
+  alias Pleroma.MFA.Settings
+  alias Pleroma.MFA.TOTP
+
+  describe "GET /api/pleroma/accounts/mfa/settings" do
+    test "returns user mfa settings for new user", %{conn: conn} do
+      token = insert(:oauth_token, scopes: ["read", "follow"])
+      token2 = insert(:oauth_token, scopes: ["write"])
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token.token}")
+             |> get("/api/pleroma/accounts/mfa")
+             |> json_response(:ok) == %{
+               "settings" => %{"enabled" => false, "totp" => false}
+             }
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token2.token}")
+             |> get("/api/pleroma/accounts/mfa")
+             |> json_response(403) == %{
+               "error" => "Insufficient permissions: read:security."
+             }
+    end
+
+    test "returns user mfa settings with enabled totp", %{conn: conn} do
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %Settings{
+            enabled: true,
+            totp: %Settings.TOTP{secret: "XXX", delivery_type: "app", confirmed: true}
+          }
+        )
+
+      token = insert(:oauth_token, scopes: ["read", "follow"], user: user)
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token.token}")
+             |> get("/api/pleroma/accounts/mfa")
+             |> json_response(:ok) == %{
+               "settings" => %{"enabled" => true, "totp" => true}
+             }
+    end
+  end
+
+  describe "GET /api/pleroma/accounts/mfa/backup_codes" do
+    test "returns backup codes", %{conn: conn} do
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %Settings{
+            backup_codes: ["1", "2", "3"],
+            totp: %Settings.TOTP{secret: "secret"}
+          }
+        )
+
+      token = insert(:oauth_token, scopes: ["write", "follow"], user: user)
+      token2 = insert(:oauth_token, scopes: ["read"])
+
+      response =
+        conn
+        |> put_req_header("authorization", "Bearer #{token.token}")
+        |> get("/api/pleroma/accounts/mfa/backup_codes")
+        |> json_response(:ok)
+
+      assert [<<_::bytes-size(6)>>, <<_::bytes-size(6)>>] = response["codes"]
+      user = refresh_record(user)
+      mfa_settings = user.multi_factor_authentication_settings
+      assert mfa_settings.totp.secret == "secret"
+      refute mfa_settings.backup_codes == ["1", "2", "3"]
+      refute mfa_settings.backup_codes == []
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token2.token}")
+             |> get("/api/pleroma/accounts/mfa/backup_codes")
+             |> json_response(403) == %{
+               "error" => "Insufficient permissions: write:security."
+             }
+    end
+  end
+
+  describe "GET /api/pleroma/accounts/mfa/setup/totp" do
+    test "return errors when method is invalid", %{conn: conn} do
+      user = insert(:user)
+      token = insert(:oauth_token, scopes: ["write", "follow"], user: user)
+
+      response =
+        conn
+        |> put_req_header("authorization", "Bearer #{token.token}")
+        |> get("/api/pleroma/accounts/mfa/setup/torf")
+        |> json_response(400)
+
+      assert response == %{"error" => "undefined method"}
+    end
+
+    test "returns key and provisioning_uri", %{conn: conn} do
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %Settings{backup_codes: ["1", "2", "3"]}
+        )
+
+      token = insert(:oauth_token, scopes: ["write", "follow"], user: user)
+      token2 = insert(:oauth_token, scopes: ["read"])
+
+      response =
+        conn
+        |> put_req_header("authorization", "Bearer #{token.token}")
+        |> get("/api/pleroma/accounts/mfa/setup/totp")
+        |> json_response(:ok)
+
+      user = refresh_record(user)
+      mfa_settings = user.multi_factor_authentication_settings
+      secret = mfa_settings.totp.secret
+      refute mfa_settings.enabled
+      assert mfa_settings.backup_codes == ["1", "2", "3"]
+
+      assert response == %{
+               "key" => secret,
+               "provisioning_uri" => TOTP.provisioning_uri(secret, "#{user.email}")
+             }
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token2.token}")
+             |> get("/api/pleroma/accounts/mfa/setup/totp")
+             |> json_response(403) == %{
+               "error" => "Insufficient permissions: write:security."
+             }
+    end
+  end
+
+  describe "GET /api/pleroma/accounts/mfa/confirm/totp" do
+    test "returns success result", %{conn: conn} do
+      secret = TOTP.generate_secret()
+      code = TOTP.generate_token(secret)
+
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %Settings{
+            backup_codes: ["1", "2", "3"],
+            totp: %Settings.TOTP{secret: secret}
+          }
+        )
+
+      token = insert(:oauth_token, scopes: ["write", "follow"], user: user)
+      token2 = insert(:oauth_token, scopes: ["read"])
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token.token}")
+             |> post("/api/pleroma/accounts/mfa/confirm/totp", %{password: "test", code: code})
+             |> json_response(:ok)
+
+      settings = refresh_record(user).multi_factor_authentication_settings
+      assert settings.enabled
+      assert settings.totp.secret == secret
+      assert settings.totp.confirmed
+      assert settings.backup_codes == ["1", "2", "3"]
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token2.token}")
+             |> post("/api/pleroma/accounts/mfa/confirm/totp", %{password: "test", code: code})
+             |> json_response(403) == %{
+               "error" => "Insufficient permissions: write:security."
+             }
+    end
+
+    test "returns error if password incorrect", %{conn: conn} do
+      secret = TOTP.generate_secret()
+      code = TOTP.generate_token(secret)
+
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %Settings{
+            backup_codes: ["1", "2", "3"],
+            totp: %Settings.TOTP{secret: secret}
+          }
+        )
+
+      token = insert(:oauth_token, scopes: ["write", "follow"], user: user)
+
+      response =
+        conn
+        |> put_req_header("authorization", "Bearer #{token.token}")
+        |> post("/api/pleroma/accounts/mfa/confirm/totp", %{password: "xxx", code: code})
+        |> json_response(422)
+
+      settings = refresh_record(user).multi_factor_authentication_settings
+      refute settings.enabled
+      refute settings.totp.confirmed
+      assert settings.backup_codes == ["1", "2", "3"]
+      assert response == %{"error" => "Invalid password."}
+    end
+
+    test "returns error if code incorrect", %{conn: conn} do
+      secret = TOTP.generate_secret()
+
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %Settings{
+            backup_codes: ["1", "2", "3"],
+            totp: %Settings.TOTP{secret: secret}
+          }
+        )
+
+      token = insert(:oauth_token, scopes: ["write", "follow"], user: user)
+      token2 = insert(:oauth_token, scopes: ["read"])
+
+      response =
+        conn
+        |> put_req_header("authorization", "Bearer #{token.token}")
+        |> post("/api/pleroma/accounts/mfa/confirm/totp", %{password: "test", code: "code"})
+        |> json_response(422)
+
+      settings = refresh_record(user).multi_factor_authentication_settings
+      refute settings.enabled
+      refute settings.totp.confirmed
+      assert settings.backup_codes == ["1", "2", "3"]
+      assert response == %{"error" => "invalid_token"}
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token2.token}")
+             |> post("/api/pleroma/accounts/mfa/confirm/totp", %{password: "test", code: "code"})
+             |> json_response(403) == %{
+               "error" => "Insufficient permissions: write:security."
+             }
+    end
+  end
+
+  describe "DELETE /api/pleroma/accounts/mfa/totp" do
+    test "returns success result", %{conn: conn} do
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %Settings{
+            backup_codes: ["1", "2", "3"],
+            totp: %Settings.TOTP{secret: "secret"}
+          }
+        )
+
+      token = insert(:oauth_token, scopes: ["write", "follow"], user: user)
+      token2 = insert(:oauth_token, scopes: ["read"])
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token.token}")
+             |> delete("/api/pleroma/accounts/mfa/totp", %{password: "test"})
+             |> json_response(:ok)
+
+      settings = refresh_record(user).multi_factor_authentication_settings
+      refute settings.enabled
+      assert settings.totp.secret == nil
+      refute settings.totp.confirmed
+
+      assert conn
+             |> put_req_header("authorization", "Bearer #{token2.token}")
+             |> delete("/api/pleroma/accounts/mfa/totp", %{password: "test"})
+             |> json_response(403) == %{
+               "error" => "Insufficient permissions: write:security."
+             }
+    end
+  end
+end

test/web/streamer/ping_test.exs

@@ -1,36 +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.PingTest do
-  use Pleroma.DataCase
-
-  import Pleroma.Factory
-  alias Pleroma.Web.Streamer
-
-  setup do
-    start_supervised({Streamer.supervisor(), [ping_interval: 30]})
-
-    :ok
-  end
-
-  describe "sockets" do
-    setup do
-      user = insert(:user)
-      {:ok, %{user: user}}
-    end
-
-    test "it sends pings", %{user: user} do
-      task =
-        Task.async(fn ->
-          assert_receive {:text, received_event}, 40
-          assert_receive {:text, received_event}, 40
-          assert_receive {:text, received_event}, 40
-        end)
-
-      Streamer.add_socket("public", %{transport_pid: task.pid, assigns: %{user: user}})
-
-      Task.await(task)
-    end
-  end
-end

test/web/streamer/state_test.exs

@@ -1,54 +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.StateTest do
-  use Pleroma.DataCase
-
-  import Pleroma.Factory
-  alias Pleroma.Web.Streamer
-  alias Pleroma.Web.Streamer.StreamerSocket
-
-  @moduletag needs_streamer: true
-
-  describe "sockets" do
-    setup do
-      user = insert(:user)
-      user2 = insert(:user)
-      {:ok, %{user: user, user2: user2}}
-    end
-
-    test "it can add a socket", %{user: user} do
-      Streamer.add_socket("public", %{transport_pid: 1, assigns: %{user: user}})
-
-      assert(%{"public" => [%StreamerSocket{transport_pid: 1}]} = Streamer.get_sockets())
-    end
-
-    test "it can add multiple sockets per user", %{user: user} do
-      Streamer.add_socket("public", %{transport_pid: 1, assigns: %{user: user}})
-      Streamer.add_socket("public", %{transport_pid: 2, assigns: %{user: user}})
-
-      assert(
-        %{
-          "public" => [
-            %StreamerSocket{transport_pid: 2},
-            %StreamerSocket{transport_pid: 1}
-          ]
-        } = Streamer.get_sockets()
-      )
-    end
-
-    test "it will not add a duplicate socket", %{user: user} do
-      Streamer.add_socket("activity", %{transport_pid: 1, assigns: %{user: user}})
-      Streamer.add_socket("activity", %{transport_pid: 1, assigns: %{user: user}})
-
-      assert(
-        %{
-          "activity" => [
-            %StreamerSocket{transport_pid: 1}
-          ]
-        } = Streamer.get_sockets()
-      )
-    end
-  end
-end

test/web/streamer/streamer_test.exs

@@ -12,13 +12,9 @@ defmodule Pleroma.Web.StreamerTest do
   alias Pleroma.User
   alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.Streamer
-  alias Pleroma.Web.Streamer.StreamerSocket
-  alias Pleroma.Web.Streamer.Worker
 
   @moduletag needs_streamer: true, capture_log: true
 
-  @streamer_timeout 150
-  @streamer_start_wait 10
   setup do: clear_config([:instance, :skip_thread_containment])
 
   describe "user streams" do
@@ -29,69 +25,35 @@ defmodule Pleroma.Web.StreamerTest do
     end
 
     test "it streams the user's post in the 'user' stream", %{user: user} do
-      task =
-        Task.async(fn ->
-          assert_receive {:text, _}, @streamer_timeout
-        end)
-
-      Streamer.add_socket(
-        "user",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
-
+      Streamer.add_socket("user", user)
       {:ok, activity} = CommonAPI.post(user, %{"status" => "hey"})
-
-      Streamer.stream("user", activity)
-      Task.await(task)
+      assert_receive {:render_with_user, _, _, ^activity}
+      refute Streamer.filtered_by_user?(user, activity)
     end
 
     test "it streams boosts of the user in the 'user' stream", %{user: user} do
-      task =
-        Task.async(fn ->
-          assert_receive {:text, _}, @streamer_timeout
-        end)
-
-      Streamer.add_socket(
-        "user",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
+      Streamer.add_socket("user", user)
 
       other_user = insert(:user)
       {:ok, activity} = CommonAPI.post(other_user, %{"status" => "hey"})
       {:ok, announce, _} = CommonAPI.repeat(activity.id, user)
 
-      Streamer.stream("user", announce)
-      Task.await(task)
+      assert_receive {:render_with_user, Pleroma.Web.StreamerView, "update.json", ^announce}
+      refute Streamer.filtered_by_user?(user, announce)
     end
 
     test "it sends notify to in the 'user' stream", %{user: user, notify: notify} do
-      task =
-        Task.async(fn ->
-          assert_receive {:text, _}, @streamer_timeout
-        end)
-
-      Streamer.add_socket(
-        "user",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
-
+      Streamer.add_socket("user", user)
       Streamer.stream("user", notify)
-      Task.await(task)
+      assert_receive {:render_with_user, _, _, ^notify}
+      refute Streamer.filtered_by_user?(user, notify)
     end
 
     test "it sends notify to in the 'user:notification' stream", %{user: user, notify: notify} do
-      task =
-        Task.async(fn ->
-          assert_receive {:text, _}, @streamer_timeout
-        end)
-
-      Streamer.add_socket(
-        "user:notification",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
-
+      Streamer.add_socket("user:notification", user)
       Streamer.stream("user:notification", notify)
-      Task.await(task)
+      assert_receive {:render_with_user, _, _, ^notify}
+      refute Streamer.filtered_by_user?(user, notify)
     end
 
     test "it doesn't send notify to the 'user:notification' stream when a user is blocked", %{
@@ -100,18 +62,12 @@ test "it doesn't send notify to the 'user:notification' stream when a user is bl
       blocked = insert(:user)
       {:ok, _user_relationship} = User.block(user, blocked)
 
-      task = Task.async(fn -> refute_receive {:text, _}, @streamer_timeout end)
-
-      Streamer.add_socket(
-        "user:notification",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
+      Streamer.add_socket("user:notification", user)
 
       {:ok, activity} = CommonAPI.post(user, %{"status" => ":("})
-      {:ok, notif} = CommonAPI.favorite(blocked, activity.id)
+      {:ok, _} = CommonAPI.favorite(blocked, activity.id)
 
-      Streamer.stream("user:notification", notif)
-      Task.await(task)
+      refute_receive _
     end
 
     test "it doesn't send notify to the 'user:notification' stream when a thread is muted", %{
@@ -119,45 +75,50 @@ test "it doesn't send notify to the 'user:notification' stream when a thread is
     } do
       user2 = insert(:user)
 
-      task = Task.async(fn -> refute_receive {:text, _}, @streamer_timeout end)
-
-      Streamer.add_socket(
-        "user:notification",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
-
       {:ok, activity} = CommonAPI.post(user, %{"status" => "super hot take"})
-      {:ok, activity} = CommonAPI.add_mute(user, activity)
-      {:ok, notif} = CommonAPI.favorite(user2, activity.id)
+      {:ok, _} = CommonAPI.add_mute(user, activity)
 
-      Streamer.stream("user:notification", notif)
-      Task.await(task)
+      Streamer.add_socket("user:notification", user)
+
+      {:ok, favorite_activity} = CommonAPI.favorite(user2, activity.id)
+
+      refute_receive _
+      assert Streamer.filtered_by_user?(user, favorite_activity)
     end
 
-    test "it doesn't send notify to the 'user:notification' stream' when a domain is blocked", %{
+    test "it sends favorite to 'user:notification' stream'", %{
       user: user
     } do
       user2 = insert(:user, %{ap_id: "https://hecking-lewd-place.com/user/meanie"})
 
-      task = Task.async(fn -> refute_receive {:text, _}, @streamer_timeout end)
+      {:ok, activity} = CommonAPI.post(user, %{"status" => "super hot take"})
+      Streamer.add_socket("user:notification", user)
+      {:ok, favorite_activity} = CommonAPI.favorite(user2, activity.id)
 
-      Streamer.add_socket(
-        "user:notification",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
+      assert_receive {:render_with_user, _, "notification.json", notif}
+      assert notif.activity.id == favorite_activity.id
+      refute Streamer.filtered_by_user?(user, notif)
+    end
+
+    test "it doesn't send the 'user:notification' stream' when a domain is blocked", %{
+      user: user
+    } do
+      user2 = insert(:user, %{ap_id: "https://hecking-lewd-place.com/user/meanie"})
 
       {:ok, user} = User.block_domain(user, "hecking-lewd-place.com")
       {:ok, activity} = CommonAPI.post(user, %{"status" => "super hot take"})
-      {:ok, notif} = CommonAPI.favorite(user2, activity.id)
+      Streamer.add_socket("user:notification", user)
+      {:ok, favorite_activity} = CommonAPI.favorite(user2, activity.id)
 
-      Streamer.stream("user:notification", notif)
-      Task.await(task)
+      refute_receive _
+      assert Streamer.filtered_by_user?(user, favorite_activity)
     end
 
     test "it sends follow activities to the 'user:notification' stream", %{
       user: user
     } do
       user_url = user.ap_id
+      user2 = insert(:user)
 
       body =
         File.read!("test/fixtures/users_mock/localhost.json")
@@ -169,47 +130,24 @@ test "it sends follow activities to the 'user:notification' stream", %{
           %Tesla.Env{status: 200, body: body}
       end)
 
-      user2 = insert(:user)
-      task = Task.async(fn -> assert_receive {:text, _}, @streamer_timeout end)
+      Streamer.add_socket("user:notification", user)
+      {:ok, _follower, _followed, follow_activity} = CommonAPI.follow(user2, user)
 
-      Process.sleep(@streamer_start_wait)
-
-      Streamer.add_socket(
-        "user:notification",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
-
-      {:ok, _follower, _followed, _activity} = CommonAPI.follow(user2, user)
-
-      # We don't directly pipe the notification to the streamer as it's already
-      # generated as a side effect of CommonAPI.follow().
-      Task.await(task)
+      assert_receive {:render_with_user, _, "notification.json", notif}
+      assert notif.activity.id == follow_activity.id
+      refute Streamer.filtered_by_user?(user, notif)
     end
   end
 
-  test "it sends to public" do
+  test "it sends to public authenticated" do
     user = insert(:user)
     other_user = insert(:user)
 
-    task =
-      Task.async(fn ->
-        assert_receive {:text, _}, @streamer_timeout
-      end)
+    Streamer.add_socket("public", other_user)
 
-    fake_socket = %StreamerSocket{
-      transport_pid: task.pid,
-      user: user
-    }
-
-    {:ok, activity} = CommonAPI.post(other_user, %{"status" => "Test"})
-
-    topics = %{
-      "public" => [fake_socket]
-    }
-
-    Worker.push_to_socket(topics, "public", activity)
-
-    Task.await(task)
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "Test"})
+    assert_receive {:render_with_user, _, _, ^activity}
+    refute Streamer.filtered_by_user?(user, activity)
   end
 
   test "works for deletions" do
@@ -217,37 +155,32 @@ test "works for deletions" do
     other_user = insert(:user)
     {:ok, activity} = CommonAPI.post(other_user, %{"status" => "Test"})
 
-    task =
-      Task.async(fn ->
-        expected_event =
-          %{
-            "event" => "delete",
-            "payload" => activity.id
-          }
-          |> Jason.encode!()
+    Streamer.add_socket("public", user)
 
-        assert_receive {:text, received_event}, @streamer_timeout
-        assert received_event == expected_event
-      end)
+    {:ok, _} = CommonAPI.delete(activity.id, other_user)
+    activity_id = activity.id
+    assert_receive {:text, event}
+    assert %{"event" => "delete", "payload" => ^activity_id} = Jason.decode!(event)
+  end
 
-    fake_socket = %StreamerSocket{
-      transport_pid: task.pid,
-      user: user
-    }
+  test "it sends to public unauthenticated" do
+    user = insert(:user)
 
-    {:ok, activity} = CommonAPI.delete(activity.id, other_user)
+    Streamer.add_socket("public", nil)
 
-    topics = %{
-      "public" => [fake_socket]
-    }
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "Test"})
+    activity_id = activity.id
+    assert_receive {:text, event}
+    assert %{"event" => "update", "payload" => payload} = Jason.decode!(event)
+    assert %{"id" => ^activity_id} = Jason.decode!(payload)
 
-    Worker.push_to_socket(topics, "public", activity)
-
-    Task.await(task)
+    {:ok, _} = CommonAPI.delete(activity.id, user)
+    assert_receive {:text, event}
+    assert %{"event" => "delete", "payload" => ^activity_id} = Jason.decode!(event)
   end
 
   describe "thread_containment" do
-    test "it doesn't send to user if recipients invalid and thread containment is enabled" do
+    test "it filters to user if recipients invalid and thread containment is enabled" do
       Pleroma.Config.put([:instance, :skip_thread_containment], false)
       author = insert(:user)
       user = insert(:user)
@@ -262,12 +195,10 @@ test "it doesn't send to user if recipients invalid and thread containment is en
             )
         )
 
-      task = Task.async(fn -> refute_receive {:text, _}, 1_000 end)
-      fake_socket = %StreamerSocket{transport_pid: task.pid, user: user}
-      topics = %{"public" => [fake_socket]}
-      Worker.push_to_socket(topics, "public", activity)
-
-      Task.await(task)
+      Streamer.add_socket("public", user)
+      Streamer.stream("public", activity)
+      assert_receive {:render_with_user, _, _, ^activity}
+      assert Streamer.filtered_by_user?(user, activity)
     end
 
     test "it sends message if recipients invalid and thread containment is disabled" do
@@ -285,12 +216,11 @@ test "it sends message if recipients invalid and thread containment is disabled"
             )
         )
 
-      task = Task.async(fn -> assert_receive {:text, _}, 1_000 end)
-      fake_socket = %StreamerSocket{transport_pid: task.pid, user: user}
-      topics = %{"public" => [fake_socket]}
-      Worker.push_to_socket(topics, "public", activity)
+      Streamer.add_socket("public", user)
+      Streamer.stream("public", activity)
 
-      Task.await(task)
+      assert_receive {:render_with_user, _, _, ^activity}
+      refute Streamer.filtered_by_user?(user, activity)
     end
 
     test "it sends message if recipients invalid and thread containment is enabled but user's thread containment is disabled" do
@@ -308,79 +238,53 @@ test "it sends message if recipients invalid and thread containment is enabled b
             )
         )
 
-      task = Task.async(fn -> assert_receive {:text, _}, 1_000 end)
-      fake_socket = %StreamerSocket{transport_pid: task.pid, user: user}
-      topics = %{"public" => [fake_socket]}
-      Worker.push_to_socket(topics, "public", activity)
+      Streamer.add_socket("public", user)
+      Streamer.stream("public", activity)
 
-      Task.await(task)
+      assert_receive {:render_with_user, _, _, ^activity}
+      refute Streamer.filtered_by_user?(user, activity)
     end
   end
 
   describe "blocks" do
-    test "it doesn't send messages involving blocked users" do
+    test "it filters messages involving blocked users" do
       user = insert(:user)
       blocked_user = insert(:user)
       {:ok, _user_relationship} = User.block(user, blocked_user)
 
+      Streamer.add_socket("public", user)
       {:ok, activity} = CommonAPI.post(blocked_user, %{"status" => "Test"})
-
-      task =
-        Task.async(fn ->
-          refute_receive {:text, _}, 1_000
-        end)
-
-      fake_socket = %StreamerSocket{
-        transport_pid: task.pid,
-        user: user
-      }
-
-      topics = %{
-        "public" => [fake_socket]
-      }
-
-      Worker.push_to_socket(topics, "public", activity)
-
-      Task.await(task)
+      assert_receive {:render_with_user, _, _, ^activity}
+      assert Streamer.filtered_by_user?(user, activity)
     end
 
-    test "it doesn't send messages transitively involving blocked users" do
+    test "it filters messages transitively involving blocked users" do
       blocker = insert(:user)
       blockee = insert(:user)
       friend = insert(:user)
 
-      task =
-        Task.async(fn ->
-          refute_receive {:text, _}, 1_000
-        end)
-
-      fake_socket = %StreamerSocket{
-        transport_pid: task.pid,
-        user: blocker
-      }
-
-      topics = %{
-        "public" => [fake_socket]
-      }
+      Streamer.add_socket("public", blocker)
 
       {:ok, _user_relationship} = User.block(blocker, blockee)
 
       {:ok, activity_one} = CommonAPI.post(friend, %{"status" => "hey! @#{blockee.nickname}"})
 
-      Worker.push_to_socket(topics, "public", activity_one)
+      assert_receive {:render_with_user, _, _, ^activity_one}
+      assert Streamer.filtered_by_user?(blocker, activity_one)
 
       {:ok, activity_two} = CommonAPI.post(blockee, %{"status" => "hey! @#{friend.nickname}"})
 
-      Worker.push_to_socket(topics, "public", activity_two)
+      assert_receive {:render_with_user, _, _, ^activity_two}
+      assert Streamer.filtered_by_user?(blocker, activity_two)
 
       {:ok, activity_three} = CommonAPI.post(blockee, %{"status" => "hey! @#{blocker.nickname}"})
 
-      Worker.push_to_socket(topics, "public", activity_three)
-
-      Task.await(task)
+      assert_receive {:render_with_user, _, _, ^activity_three}
+      assert Streamer.filtered_by_user?(blocker, activity_three)
     end
   end
 
+  describe "lists" do
     test "it doesn't send unwanted DMs to list" do
       user_a = insert(:user)
       user_b = insert(:user)
@@ -391,29 +295,15 @@ test "it doesn't send unwanted DMs to list" do
       {:ok, list} = List.create("Test", user_a)
       {:ok, list} = List.follow(list, user_b)
 
-    {:ok, activity} =
+      Streamer.add_socket("list:#{list.id}", user_a)
+
+      {:ok, _activity} =
         CommonAPI.post(user_b, %{
           "status" => "@#{user_c.nickname} Test",
           "visibility" => "direct"
         })
 
-    task =
-      Task.async(fn ->
-        refute_receive {:text, _}, 1_000
-      end)
-
-    fake_socket = %StreamerSocket{
-      transport_pid: task.pid,
-      user: user_a
-    }
-
-    topics = %{
-      "list:#{list.id}" => [fake_socket]
-    }
-
-    Worker.handle_call({:stream, "list", activity}, self(), topics)
-
-    Task.await(task)
+      refute_receive _
     end
 
     test "it doesn't send unwanted private posts to list" do
@@ -423,29 +313,15 @@ test "it doesn't send unwanted private posts to list" do
       {:ok, list} = List.create("Test", user_a)
       {:ok, list} = List.follow(list, user_b)
 
-    {:ok, activity} =
+      Streamer.add_socket("list:#{list.id}", user_a)
+
+      {:ok, _activity} =
         CommonAPI.post(user_b, %{
           "status" => "Test",
           "visibility" => "private"
         })
 
-    task =
-      Task.async(fn ->
-        refute_receive {:text, _}, 1_000
-      end)
-
-    fake_socket = %StreamerSocket{
-      transport_pid: task.pid,
-      user: user_a
-    }
-
-    topics = %{
-      "list:#{list.id}" => [fake_socket]
-    }
-
-    Worker.handle_call({:stream, "list", activity}, self(), topics)
-
-    Task.await(task)
+      refute_receive _
     end
 
     test "it sends wanted private posts to list" do
@@ -457,106 +333,73 @@ test "it sends wanted private posts to list" do
       {:ok, list} = List.create("Test", user_a)
       {:ok, list} = List.follow(list, user_b)
 
+      Streamer.add_socket("list:#{list.id}", user_a)
+
       {:ok, activity} =
         CommonAPI.post(user_b, %{
           "status" => "Test",
           "visibility" => "private"
         })
 
-    task =
-      Task.async(fn ->
-        assert_receive {:text, _}, 1_000
-      end)
-
-    fake_socket = %StreamerSocket{
-      transport_pid: task.pid,
-      user: user_a
-    }
-
-    Streamer.add_socket(
-      "list:#{list.id}",
-      fake_socket
-    )
-
-    Worker.handle_call({:stream, "list", activity}, self(), %{})
-
-    Task.await(task)
+      assert_receive {:render_with_user, _, _, ^activity}
+      refute Streamer.filtered_by_user?(user_a, activity)
+    end
   end
 
-  test "it doesn't send muted reblogs" do
+  describe "muted reblogs" do
+    test "it filters muted reblogs" do
       user1 = insert(:user)
       user2 = insert(:user)
       user3 = insert(:user)
+      CommonAPI.follow(user1, user2)
       CommonAPI.hide_reblogs(user1, user2)
 
       {:ok, create_activity} = CommonAPI.post(user3, %{"status" => "I'm kawen"})
+
+      Streamer.add_socket("user", user1)
       {:ok, announce_activity, _} = CommonAPI.repeat(create_activity.id, user2)
-
-    task =
-      Task.async(fn ->
-        refute_receive {:text, _}, 1_000
-      end)
-
-    fake_socket = %StreamerSocket{
-      transport_pid: task.pid,
-      user: user1
-    }
-
-    topics = %{
-      "public" => [fake_socket]
-    }
-
-    Worker.push_to_socket(topics, "public", announce_activity)
-
-    Task.await(task)
+      assert_receive {:render_with_user, _, _, ^announce_activity}
+      assert Streamer.filtered_by_user?(user1, announce_activity)
     end
 
-  test "it does send non-reblog notification for reblog-muted actors" do
+    test "it filters reblog notification for reblog-muted actors" do
       user1 = insert(:user)
       user2 = insert(:user)
-    user3 = insert(:user)
+      CommonAPI.follow(user1, user2)
       CommonAPI.hide_reblogs(user1, user2)
 
-    {:ok, create_activity} = CommonAPI.post(user3, %{"status" => "I'm kawen"})
-    {:ok, favorite_activity} = CommonAPI.favorite(user2, create_activity.id)
+      {:ok, create_activity} = CommonAPI.post(user1, %{"status" => "I'm kawen"})
+      Streamer.add_socket("user", user1)
+      {:ok, _favorite_activity, _} = CommonAPI.repeat(create_activity.id, user2)
 
-    task =
-      Task.async(fn ->
-        assert_receive {:text, _}, 1_000
-      end)
-
-    fake_socket = %StreamerSocket{
-      transport_pid: task.pid,
-      user: user1
-    }
-
-    topics = %{
-      "public" => [fake_socket]
-    }
-
-    Worker.push_to_socket(topics, "public", favorite_activity)
-
-    Task.await(task)
+      assert_receive {:render_with_user, _, "notification.json", notif}
+      assert Streamer.filtered_by_user?(user1, notif)
     end
 
-  test "it doesn't send posts from muted threads" do
+    test "it send non-reblog notification for reblog-muted actors" do
+      user1 = insert(:user)
+      user2 = insert(:user)
+      CommonAPI.follow(user1, user2)
+      CommonAPI.hide_reblogs(user1, user2)
+
+      {:ok, create_activity} = CommonAPI.post(user1, %{"status" => "I'm kawen"})
+      Streamer.add_socket("user", user1)
+      {:ok, _favorite_activity} = CommonAPI.favorite(user2, create_activity.id)
+
+      assert_receive {:render_with_user, _, "notification.json", notif}
+      refute Streamer.filtered_by_user?(user1, notif)
+    end
+  end
+
+  test "it filters posts from muted threads" do
     user = insert(:user)
     user2 = insert(:user)
+    Streamer.add_socket("user", user2)
     {:ok, user2, user, _activity} = CommonAPI.follow(user2, user)
-
     {:ok, activity} = CommonAPI.post(user, %{"status" => "super hot take"})
-
-    {:ok, activity} = CommonAPI.add_mute(user2, activity)
-
-    task = Task.async(fn -> refute_receive {:text, _}, @streamer_timeout end)
-
-    Streamer.add_socket(
-      "user",
-      %{transport_pid: task.pid, assigns: %{user: user2}}
-    )
-
-    Streamer.stream("user", activity)
-    Task.await(task)
+    {:ok, _} = CommonAPI.add_mute(user2, activity)
+    assert_receive {:render_with_user, _, _, ^activity}
+    assert Streamer.filtered_by_user?(user2, activity)
   end
 
   describe "direct streams" do
@@ -568,22 +411,7 @@ test "it sends conversation update to the 'direct' stream", %{} do
       user = insert(:user)
       another_user = insert(:user)
 
-      task =
-        Task.async(fn ->
-          assert_receive {:text, received_event}, @streamer_timeout
-
-          assert %{"event" => "conversation", "payload" => received_payload} =
-                   Jason.decode!(received_event)
-
-          assert %{"last_status" => last_status} = Jason.decode!(received_payload)
-          [participation] = Participation.for_user(user)
-          assert last_status["pleroma"]["direct_conversation_id"] == participation.id
-        end)
-
-      Streamer.add_socket(
-        "direct",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
+      Streamer.add_socket("direct", user)
 
       {:ok, _create_activity} =
         CommonAPI.post(another_user, %{
@@ -591,42 +419,47 @@ test "it sends conversation update to the 'direct' stream", %{} do
           "visibility" => "direct"
         })
 
-      Task.await(task)
+      assert_receive {:text, received_event}
+
+      assert %{"event" => "conversation", "payload" => received_payload} =
+               Jason.decode!(received_event)
+
+      assert %{"last_status" => last_status} = Jason.decode!(received_payload)
+      [participation] = Participation.for_user(user)
+      assert last_status["pleroma"]["direct_conversation_id"] == participation.id
     end
 
     test "it doesn't send conversation update to the 'direct' stream when the last message in the conversation is deleted" do
       user = insert(:user)
       another_user = insert(:user)
 
+      Streamer.add_socket("direct", user)
+
       {:ok, create_activity} =
         CommonAPI.post(another_user, %{
           "status" => "hi @#{user.nickname}",
           "visibility" => "direct"
         })
 
-      task =
-        Task.async(fn ->
-          assert_receive {:text, received_event}, @streamer_timeout
-          assert %{"event" => "delete", "payload" => _} = Jason.decode!(received_event)
+      create_activity_id = create_activity.id
+      assert_receive {:render_with_user, _, _, ^create_activity}
+      assert_receive {:text, received_conversation1}
+      assert %{"event" => "conversation", "payload" => _} = Jason.decode!(received_conversation1)
 
-          refute_receive {:text, _}, @streamer_timeout
-        end)
+      {:ok, _} = CommonAPI.delete(create_activity_id, another_user)
 
-      Process.sleep(@streamer_start_wait)
+      assert_receive {:text, received_event}
 
-      Streamer.add_socket(
-        "direct",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
+      assert %{"event" => "delete", "payload" => ^create_activity_id} =
+               Jason.decode!(received_event)
 
-      {:ok, _} = CommonAPI.delete(create_activity.id, another_user)
-
-      Task.await(task)
+      refute_receive _
     end
 
     test "it sends conversation update to the 'direct' stream when a message is deleted" do
       user = insert(:user)
       another_user = insert(:user)
+      Streamer.add_socket("direct", user)
 
       {:ok, create_activity} =
         CommonAPI.post(another_user, %{
@@ -636,35 +469,30 @@ test "it sends conversation update to the 'direct' stream when a message is dele
 
       {:ok, create_activity2} =
         CommonAPI.post(another_user, %{
-          "status" => "hi @#{user.nickname}",
+          "status" => "hi @#{user.nickname} 2",
           "in_reply_to_status_id" => create_activity.id,
           "visibility" => "direct"
         })
 
-      task =
-        Task.async(fn ->
-          assert_receive {:text, received_event}, @streamer_timeout
+      assert_receive {:render_with_user, _, _, ^create_activity}
+      assert_receive {:render_with_user, _, _, ^create_activity2}
+      assert_receive {:text, received_conversation1}
+      assert %{"event" => "conversation", "payload" => _} = Jason.decode!(received_conversation1)
+      assert_receive {:text, received_conversation1}
+      assert %{"event" => "conversation", "payload" => _} = Jason.decode!(received_conversation1)
+
+      {:ok, _} = CommonAPI.delete(create_activity2.id, another_user)
+
+      assert_receive {:text, received_event}
       assert %{"event" => "delete", "payload" => _} = Jason.decode!(received_event)
 
-          assert_receive {:text, received_event}, @streamer_timeout
+      assert_receive {:text, received_event}
 
       assert %{"event" => "conversation", "payload" => received_payload} =
                Jason.decode!(received_event)
 
       assert %{"last_status" => last_status} = Jason.decode!(received_payload)
       assert last_status["id"] == to_string(create_activity.id)
-        end)
-
-      Process.sleep(@streamer_start_wait)
-
-      Streamer.add_socket(
-        "direct",
-        %{transport_pid: task.pid, assigns: %{user: user}}
-      )
-
-      {:ok, _} = CommonAPI.delete(create_activity2.id, another_user)
-
-      Task.await(task)
     end
   end
 end

test/web/twitter_api/remote_follow_controller_test.exs

@@ -6,11 +6,14 @@ defmodule Pleroma.Web.TwitterAPI.RemoteFollowControllerTest do
   use Pleroma.Web.ConnCase
 
   alias Pleroma.Config
+  alias Pleroma.MFA
+  alias Pleroma.MFA.TOTP
   alias Pleroma.User
   alias Pleroma.Web.CommonAPI
 
   import ExUnit.CaptureLog
   import Pleroma.Factory
+  import Ecto.Query
 
   setup do
     Tesla.Mock.mock(fn env -> apply(HttpRequestMock, :request, [env]) end)
@@ -160,6 +163,119 @@ test "returns success result when user already in followers", %{conn: conn} do
     end
   end
 
+  describe "POST /ostatus_subscribe - follow/2 with enabled Two-Factor Auth " do
+    test "render the MFA login form", %{conn: conn} do
+      otp_secret = TOTP.generate_secret()
+
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %MFA.Settings{
+            enabled: true,
+            totp: %MFA.Settings.TOTP{secret: otp_secret, confirmed: true}
+          }
+        )
+
+      user2 = insert(:user)
+
+      response =
+        conn
+        |> post(remote_follow_path(conn, :do_follow), %{
+          "authorization" => %{"name" => user.nickname, "password" => "test", "id" => user2.id}
+        })
+        |> response(200)
+
+      mfa_token = Pleroma.Repo.one(from(q in Pleroma.MFA.Token, where: q.user_id == ^user.id))
+
+      assert response =~ "Two-factor authentication"
+      assert response =~ "Authentication code"
+      assert response =~ mfa_token.token
+      refute user2.follower_address in User.following(user)
+    end
+
+    test "returns error when password is incorrect", %{conn: conn} do
+      otp_secret = TOTP.generate_secret()
+
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %MFA.Settings{
+            enabled: true,
+            totp: %MFA.Settings.TOTP{secret: otp_secret, confirmed: true}
+          }
+        )
+
+      user2 = insert(:user)
+
+      response =
+        conn
+        |> post(remote_follow_path(conn, :do_follow), %{
+          "authorization" => %{"name" => user.nickname, "password" => "test1", "id" => user2.id}
+        })
+        |> response(200)
+
+      assert response =~ "Wrong username or password"
+      refute user2.follower_address in User.following(user)
+    end
+
+    test "follows", %{conn: conn} do
+      otp_secret = TOTP.generate_secret()
+
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %MFA.Settings{
+            enabled: true,
+            totp: %MFA.Settings.TOTP{secret: otp_secret, confirmed: true}
+          }
+        )
+
+      {:ok, %{token: token}} = MFA.Token.create_token(user)
+
+      user2 = insert(:user)
+      otp_token = TOTP.generate_token(otp_secret)
+
+      conn =
+        conn
+        |> post(
+          remote_follow_path(conn, :do_follow),
+          %{
+            "mfa" => %{"code" => otp_token, "token" => token, "id" => user2.id}
+          }
+        )
+
+      assert redirected_to(conn) == "/users/#{user2.id}"
+      assert user2.follower_address in User.following(user)
+    end
+
+    test "returns error when auth code is incorrect", %{conn: conn} do
+      otp_secret = TOTP.generate_secret()
+
+      user =
+        insert(:user,
+          multi_factor_authentication_settings: %MFA.Settings{
+            enabled: true,
+            totp: %MFA.Settings.TOTP{secret: otp_secret, confirmed: true}
+          }
+        )
+
+      {:ok, %{token: token}} = MFA.Token.create_token(user)
+
+      user2 = insert(:user)
+      otp_token = TOTP.generate_token(TOTP.generate_secret())
+
+      response =
+        conn
+        |> post(
+          remote_follow_path(conn, :do_follow),
+          %{
+            "mfa" => %{"code" => otp_token, "token" => token, "id" => user2.id}
+          }
+        )
+        |> response(200)
+
+      assert response =~ "Wrong authentication code"
+      refute user2.follower_address in User.following(user)
+    end
+  end
+
   describe "POST /ostatus_subscribe - follow/2 without assigned user " do
     test "follows", %{conn: conn} do
       user = insert(:user)