Allow nil attachments

Reviewed-on: https://akkoma.dev/AkkomaGang/akkoma/pulls/593

CHANGELOG.md

@@ -6,10 +6,17 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## Unreleased
 
+## Added
+
 - Added a new configuration option to the MediaProxy feature that allows the blocking of specific domains from using the media proxy or being explicitly allowed by the Content-Security-Policy.
   - Please make sure instances you wanted to block media from are not in the MediaProxy `whitelist`, and instead use `blocklist`.
 - `OnlyMedia` Upload Filter to simplify restricting uploads to audio, image, and video types
 
+## Fixed
+
+- Deactivated users can no longer show up in the emoji reaction list
+- Embedded posts can no longer bypass `:restrict\_unauthenticated`
+
 ## 2023.05
 
 ## Added

docs/docs/administration/CLI_tasks/frontend.md

@@ -42,7 +42,7 @@ For a frontend configured under the `available` key, it's enough to install it b
 
 This will download the latest build for the pre-configured `ref` and install it. It can then be configured as the one of the served frontends in the config file (see `primary` or `admin`).
 
-You can override any of the details. To install a Pleroma-FE build from a different URL, you could do this:
+You can override any of the details. To install an Akkoma-FE build from a different URL, you could do this:
 
 === "OTP"
 

docs/docs/administration/updating.md

@@ -62,6 +62,6 @@ mix ecto.migrate
 # Start akkoma (replace with your system service manager's equivalent if different)
 sudo systemctl start akkoma
 
-# Update Pleroma-FE frontend to latest stable. For other Frontends see Frontend Configuration doc for more information.
+# Update Akkoma-FE frontend to latest stable. For other Frontends see Frontend Configuration doc for more information.
 mix pleroma.frontend install pleroma-fe --ref stable
 ```

docs/docs/clients.md

@@ -2,6 +2,14 @@
 Note: Additional clients may work, but these are known to work with Akkoma.
 Apps listed here might not support all of Akkoma's features.
 
+## Multiplatform
+### Kaiteki
+- Homepage: <https://kaiteki.app/>
+- Source Code: <https://github.com/Kaiteki-Fedi/Kaiteki>
+- Contact: [@kaiteki@fedi.software](https://fedi.software/@Kaiteki)
+- Platforms: Web, Windows, Linux, Android
+- Features: MastoAPI, Supports multiple backends
+
 ## Desktop
 ### Whalebird
 - Homepage: <https://whalebird.social/>

docs/docs/configuration/cheatsheet.md

@@ -246,11 +246,11 @@ Notes:
 
 ### :frontend_configurations
 
-This can be used to configure a keyword list that keeps the configuration data for any kind of frontend. By default, settings for `pleroma_fe` and `masto_fe` are configured. You can find the documentation for `pleroma_fe` configuration into [Pleroma-FE configuration and customization for instance administrators](https://docs-fe.akkoma.dev/stable/CONFIGURATION/#options).
+This can be used to configure a keyword list that keeps the configuration data for any kind of frontend. By default, settings for `pleroma_fe` and `masto_fe` are configured. You can find the documentation for `pleroma_fe` configuration into [Akkoma-FE configuration and customization for instance administrators](https://docs-fe.akkoma.dev/stable/CONFIGURATION/#options).
 
 Frontends can access these settings at `/api/v1/pleroma/frontend_configurations`
 
-To add your own configuration for Pleroma-FE, use it like this:
+To add your own configuration for Akkoma-FE, use it like this:
 
 ```elixir
 config :pleroma, :frontend_configurations,

docs/docs/configuration/howto_theming_your_instance.md

@@ -6,7 +6,7 @@ To add a custom theme to your instance, you'll first need to get a custom theme,
 
 ### Create your own theme
 
-* You can create your own theme using the Pleroma FE by going to settings (gear on the top right) and choose the Theme tab. Here you have the options to create a personal theme.
+* You can create your own theme using the Akkoma FE by going to settings (gear on the top right) and choose the Theme tab. Here you have the options to create a personal theme.
 * To download your theme, you can do Save preset
 * If you want to upload a theme to customise it further, you can upload it using Load preset
 

docs/docs/index.md

@@ -3,7 +3,7 @@
 # Introduction to Akkoma
 ## What is Akkoma?
 Akkoma is a federated social networking platform, compatible with Mastodon and other ActivityPub implementations. It is free software licensed under the AGPLv3.
-It actually consists of two components: a backend, named simply Akkoma, and a user-facing frontend, named Pleroma-FE. It also includes the Mastodon frontend, if that's your thing.
+It actually consists of two components: a backend, named simply Akkoma, and a user-facing frontend, named Akkoma-FE. It also includes the Mastodon frontend, if that's your thing.
 It's part of what we call the fediverse, a federated network of instances which speak common protocols and can communicate with each other.
 One account on an instance is enough to talk to the entire fediverse!
 
@@ -31,11 +31,11 @@ Installation instructions can be found in the installation section of these docs
 ## I got an account, now what?
 Great! Now you can explore the fediverse! Open the login page for your Akkoma instance (e.g. <https://otp.akkoma.dev>) and login with your username and password. (If you don't have an account yet, click on Register)
 
-### Pleroma-FE
-The default front-end used by Akkoma is Pleroma-FE. You can find more information on what it is and how to use it in the [Introduction to Pleroma-FE](https://docs-fe.akkoma.dev/stable/).
+### Akkoma-FE
+The default front-end used by Akkoma is Akkoma-FE. You can find more information on what it is and how to use it in the [Introduction to Akkoma-FE](https://docs-fe.akkoma.dev/stable/).
 
 ### Mastodon interface
-If the Pleroma-FE interface isn't your thing, or you're just trying something new but you want to keep using the familiar Mastodon interface, we got that too!
+If the Akkoma-FE interface isn't your thing, or you're just trying something new but you want to keep using the familiar Mastodon interface, we got that too!
 Just add a "/web" after your instance url (e.g. <https://otp.akkoma.dev/web>) and you'll end on the Mastodon web interface, but with a Akkoma backend! MAGIC!
 The Mastodon interface is from the Glitch-soc fork. For more information on the Mastodon interface you can check the [Mastodon](https://docs.joinmastodon.org/) and [Glitch-soc](https://glitch-soc.github.io/docs/) documentation.
 

docs/docs/installation/optional/media_graphics_packages.md

@@ -1,19 +1,19 @@
 # Optional software packages needed for specific functionality
 
-For specific Pleroma functionality (which is disabled by default) some or all of the below packages are required:
-  * `ImageMagic`
+For specific Akkoma functionality (which is disabled by default) some or all of the below packages are required:
+  * `ImageMagick`
   * `ffmpeg`
   * `exiftool`
   
 Please refer to documentation in `docs/installation` on how to install them on specific OS.
   
-Note: the packages are not required with the current default settings of Pleroma.
+Note: the packages are not required with the current default settings of Akkoma.
 
 ## `ImageMagick`
 
 `ImageMagick` is a set of tools to create, edit, compose, or convert bitmap images.
 
-It is required for the following Pleroma features:
+It is required for the following Akkoma features:
   * `Pleroma.Upload.Filters.Mogrify`, `Pleroma.Upload.Filters.Mogrifun` upload filters (related config: `Plaroma.Upload/filters` in `config/config.exs`)
   * Media preview proxy for still images (related config: `media_preview_proxy/enabled` in `config/config.exs`)
   
@@ -21,12 +21,12 @@ It is required for the following Pleroma features:
 
 `ffmpeg` is software to record, convert and stream audio and video.
 
-It is required for the following Pleroma features:
+It is required for the following Akkoma features:
   * Media preview proxy for videos (related config: `media_preview_proxy/enabled` in `config/config.exs`)
 
 ## `exiftool`
 
 `exiftool` is media files metadata reader/writer.
 
-It is required for the following Pleroma features:
+It is required for the following Akkoma features:
   * `Pleroma.Upload.Filters.Exiftool` upload filter (related config: `Plaroma.Upload/filters` in `config/config.exs`)

docs/theme/partials/source.html

@@ -38,11 +38,11 @@
 {% endif %}
 
 {% if page and page.url.startswith('backend') %}
-  {% set repo_url = "https://git.pleroma.social/pleroma/pleroma" %}
-  {% set repo_name = "pleroma/pleroma" %}
+  {% set repo_url = "https://akkoma.dev/AkkomaGang/akkoma" %}
+  {% set repo_name = "AkkomaGang/akkoma" %}
 {% elif page and page.url.startswith('frontend') %}
-  {% set repo_url = "https://git.pleroma.social/pleroma/pleroma-fe" %}
-  {% set repo_name = "pleroma/pleroma-fe" %}
+  {% set repo_url = "https://akkoma.dev/AkkomaGang/akkoma-fe" %}
+  {% set repo_name = "AkkomaGang/akkoma-fe" %}
 {% else %}
   {% set repo_url = config.repo_url %}
   {% set repo_name = config.repo_name %}

installation/caddy/Caddyfile

@@ -4,6 +4,9 @@
 # 1. Replace 'example.tld' with your instance's domain wherever it appears.
 # 2. Copy this section into your Caddyfile and restart Caddy.
 
+# If you are able to, it's highly recommended to have your media served via a separate subdomain for improved security.
+# Uncomment the relevant sectons here and modify the base_url setting for Pleroma.Upload and :media_proxy accordingly.
+
 example.tld  {
   log {
     output file /var/log/caddy/akkoma.log
@@ -14,4 +17,21 @@ example.tld  {
   # this is explicitly IPv4 since Pleroma.Web.Endpoint binds on IPv4 only
   # and `localhost.` resolves to [::0] on some systems: see issue #930
   reverse_proxy 127.0.0.1:4000
+
+  # Uncomment if using a separate media subdomain
+  #@mediaproxy path /media/* /proxy/*
+  #handle @mediaproxy {
+  #  redir https://media.example.tld{uri} permanent
+  #}
 }
+
+# Uncomment if using a separate media subdomain
+#media.example.tld {
+#  @mediaproxy path /media/* /proxy/*
+#  reverse_proxy @mediaproxy 127.0.0.1:4000 {
+#    transport http {
+#      response_header_timeout 10s
+#      read_timeout 15s
+#    }
+#  }
+#}

lib/pleroma/constants.ex

@@ -25,7 +25,7 @@ defmodule Pleroma.Constants do
 
   const(static_only_files,
     do:
-      ~w(index.html robots.txt static static-fe finmoji emoji packs sounds images instance sw.js sw-pleroma.js favicon.png schemas doc embed.js embed.css)
+      ~w(index.html robots.txt static static-fe finmoji emoji packs sounds images instance embed sw.js sw-pleroma.js favicon.png schemas doc)
   )
 
   const(status_updatable_fields,

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -919,9 +919,13 @@ def add_attributed_to(object) do
   end
 
   def prepare_attachments(object) do
+    attachments = case Map.get(object, "attachment", []) do
+      [_ | _] = list -> list
+      _ -> []
+    end
+    
     attachments =
-      object
-      |> Map.get("attachment", [])
+      attachments
       |> Enum.map(fn data ->
         [%{"mediaType" => media_type, "href" => href} = url | _] = data["url"]
 

lib/pleroma/web/embed_controller.ex

@@ -11,22 +11,31 @@ defmodule Pleroma.Web.EmbedController do
 
   alias Pleroma.Web.ActivityPub.Visibility
 
-  plug(:put_layout, :embed)
-
   def show(conn, %{"id" => id}) do
-    with %Activity{local: true} = activity <-
-           Activity.get_by_id_with_object(id),
-         true <- Visibility.is_public?(activity.object) do
+    with {:activity, %Activity{} = activity} <-
+           {:activity, Activity.get_by_id_with_object(id)},
+         {:local, true} <- {:local, activity.local},
+         {:visible, true} <- {:visible, Visibility.visible_for_user?(activity, nil)} do
       {:ok, author} = User.get_or_fetch(activity.object.data["actor"])
 
       conn
       |> delete_resp_header("x-frame-options")
       |> delete_resp_header("content-security-policy")
+      |> put_view(Pleroma.Web.EmbedView)
       |> render("show.html",
         activity: activity,
         author: User.sanitize_html(author),
         counts: get_counts(activity)
       )
+    else
+      {:activity, _} ->
+        render_error(conn, :not_found, "Post not found")
+
+      {:local, false} ->
+        render_error(conn, :unauthorized, "Federated posts cannot be embedded")
+
+      {:visible, false} ->
+        render_error(conn, :unauthorized, "Not authorized to view this post")
     end
   end
 

lib/pleroma/web/media_proxy.ex

@@ -84,8 +84,13 @@ def whitelisted?(url) do
   end
 
   def blocked?(url) do
-    %{host: domain} = URI.parse(url)
-    domain in Config.get([:media_proxy, :whitelist])
+    %{scheme: scheme, host: domain} = URI.parse(url)
+    # Block either the bare domain or the scheme-domain combo
+    scheme_domain = "#{scheme}://#{domain}"
+    blocklist = Config.get([:media_proxy, :blocklist])
+
+    Enum.member?(blocklist, domain) ||
+      Enum.member?(blocklist, scheme_domain)
   end
 
   defp maybe_get_domain_from_url("http" <> _ = url) do

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

@@ -41,6 +41,17 @@ def index(%{assigns: %{user: user}} = conn, %{id: activity_id} = params) do
     end
   end
 
+  defp filter_allowed_user_by_ap_id(ap_ids, excluded_ap_ids) do
+    Enum.reject(ap_ids, fn ap_id ->
+      with false <- ap_id in excluded_ap_ids,
+           %{is_active: true} <- User.get_cached_by_ap_id(ap_id) do
+        false
+      else
+        _ -> true
+      end
+    end)
+  end
+
   def filter_allowed_users(reactions, user, with_muted) do
     exclude_ap_ids =
       if is_nil(user) do
@@ -51,7 +62,7 @@ def filter_allowed_users(reactions, user, with_muted) do
       end
 
     filter_emoji = fn emoji, users, url ->
-      case Enum.reject(users, &(&1 in exclude_ap_ids)) do
+      case filter_allowed_user_by_ap_id(users, exclude_ap_ids) do
         [] -> nil
         users -> {emoji, users, url}
       end

lib/pleroma/web/templates/layout/embed.html.eex

@@ -6,10 +6,10 @@
     <title><%= Pleroma.Config.get([:instance, :name]) %></title>
     <meta content='noindex' name='robots'>
     <%= Phoenix.HTML.raw(assigns[:meta] || "") %>
-    <link rel="stylesheet" href="/embed.css">
+    <link rel="stylesheet" href="/embed/embed.css">
     <base target="_parent">
   </head>
   <body>
-    <%= render @view_module, @view_template, assigns %>
+    <%= render view_module(@conn), view_template(@conn), assigns %>
   </body>
 </html>

lib/pleroma/web/views/embed_view.ex

@@ -15,7 +15,7 @@ defmodule Pleroma.Web.EmbedView do
   alias Pleroma.Web.Metadata.Utils
   alias Pleroma.Web.Router.Helpers
 
-  use Phoenix.HTML
+  import Phoenix.HTML
 
   defdelegate full_nickname(user), to: User
 
@@ -55,10 +55,13 @@ defp activity_url(%User{local: false}, %Activity{object: %Object{data: data}}) d
     data["url"] || data["external_url"] || data["id"]
   end
 
-  defp attachments(%Activity{object: %Object{data: %{"attachment" => attachments}}}) do
+  defp attachments(%Activity{object: %Object{data: %{"attachment" => attachments}}})
+       when is_list(attachments) do
     attachments
   end
 
+  defp attachments(_), do: []
+
   defp sensitive?(%Activity{object: %Object{data: %{"sensitive" => sensitive}}}) do
     sensitive
   end

priv/static/embed/embed.css

@@ -0,0 +1,115 @@
+body {
+  background-color: #282c37;
+  font-family: sans-serif;
+  color: white;
+  margin: 0;
+  padding: 1em;
+  padding-bottom: 0;
+}
+
+.avatar {
+  cursor: pointer;
+}
+
+.avatar img {
+  float: left;
+  border-radius: 4px;
+  margin-right: 4px;
+}
+
+.activity-content {
+  padding-top: 1em;
+}
+
+.attachment {
+  margin-top: 1em;
+}
+
+.attachment img {
+  max-width: 100%;
+}
+
+.date a {
+  text-decoration: none;
+}
+
+.date a:hover {
+  text-decoration: underline;
+}
+
+.date a,
+.counts {
+  color: #666;
+  font-size: 0.9em;
+}
+
+.counts dt,
+.counts dd {
+  float: left;
+  margin-left: 1em;
+}
+
+a {
+  color: white;
+}
+
+.h-card {
+  min-height: 48px;
+  margin-bottom: 8px;
+}
+
+.h-card a {
+  text-decoration: none;
+}
+
+.h-card a:hover {
+  text-decoration: underline;
+}
+
+.display-name {
+  padding-top: 4px;
+  display: block;
+  text-overflow: ellipsis;
+  overflow: hidden;
+  color: white;
+}
+
+/* keep emoji from being hilariously huge */
+.display-name img {
+  max-height: 1em;
+}
+
+.display-name .nickname {
+  padding-top: 4px;
+  display: block;
+}
+
+.nickname:hover {
+  text-decoration: none;
+}
+
+.pull-right {
+  float: right;
+}
+
+.collapse {
+  margin: 0;
+  width: auto;
+}
+
+a.button {
+  box-sizing: border-box;
+  display: inline-block;
+  color: white;
+  background-color: #419bdd;
+  border-radius: 4px;
+  border: none;
+  padding: 10px;
+  font-weight: 500;
+  font-size: 0.9em;
+}
+
+a.button:hover {
+  text-decoration: none;
+  background-color: #61a6d9;
+}

priv/static/embed/embed.js

@@ -0,0 +1,43 @@
+(function () {
+  'use strict'
+
+  var ready = function (loaded) {
+    if (['interactive', 'complete'].indexOf(document.readyState) !== -1) {
+      loaded()
+    } else {
+      document.addEventListener('DOMContentLoaded', loaded)
+    }
+  }
+
+  ready(function () {
+    var iframes = []
+
+    window.addEventListener('message', function (e) {
+      var data = e.data || {}
+
+      if (data.type !== 'setHeightPleromaEmbed' || !iframes[data.id]) {
+        return
+      }
+
+      iframes[data.id].height = data.height
+    });
+
+    [].forEach.call(document.querySelectorAll('iframe.pleroma-embed'), function (iframe) {
+      iframe.scrolling = 'no'
+      iframe.style.overflow = 'hidden'
+
+      iframes.push(iframe)
+
+      var id = iframes.length - 1
+
+      iframe.onload = function () {
+        iframe.contentWindow.postMessage({
+          type: 'setHeightPleromaEmbed',
+          id: id
+        }, '*')
+      }
+
+      iframe.onload()
+    })
+  })
+})()

test/pleroma/web/embed_controller_test.exs

@@ -0,0 +1,44 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Web.EmbedControllerTest do
+  use Pleroma.Web.ConnCase, async: true
+  import Pleroma.Factory
+
+  test "/embed", %{conn: conn} do
+    activity = insert(:note_activity)
+
+    resp =
+      conn
+      |> get("/embed/#{activity.id}")
+      |> response(200)
+
+    object = Pleroma.Object.get_by_ap_id(activity.data["object"])
+
+    assert String.contains?(resp, object.data["content"])
+  end
+
+  test "/embed with a restricted post", %{conn: conn} do
+    activity = insert(:note_activity)
+    clear_config([:restrict_unauthenticated, :activities, :local], true)
+
+    conn
+    |> get("/embed/#{activity.id}")
+    |> response(401)
+  end
+
+  test "/embed with a private post", %{conn: conn} do
+    user = insert(:user)
+
+    {:ok, activity} =
+      Pleroma.Web.CommonAPI.post(user, %{
+        status: "Mega ultra chicken status: #fried",
+        visibility: "private"
+      })
+
+    conn
+    |> get("/embed/#{activity.id}")
+    |> response(401)
+  end
+end

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

@@ -1960,6 +1960,10 @@ test "index" do
       {:ok, _} = CommonAPI.react_with_emoji(activity.id, other_user, "🎅")
       User.mute(user, other_user)
 
+      deactivated_user = insert(:user)
+      {:ok, _} = CommonAPI.react_with_emoji(activity.id, deactivated_user, "🎅")
+      User.set_activation(deactivated_user, false)
+
       result =
         conn
         |> get("/api/v1/statuses/?ids[]=#{activity.id}")
@@ -1967,6 +1971,7 @@ test "index" do
 
       assert [
                %{
+                 "emoji_reactions" => [],
                  "pleroma" => %{
                    "emoji_reactions" => []
                  }