Merge branch 'allow-group-event-edition' into 'master'

Allow events & posts to be edited by group moderators

Closes #807 et #517

See merge request framasoft/mobilizon!1003

js/src/components/Event/OrganizerPickerWrapper.vue

@@ -77,12 +77,12 @@
                       </div>
                       <div class="media-content" v-if="actor.name">
                         <p class="is-4">{{ actor.name }}</p>
-                        <p class="is-6 has-text-grey">
+                        <p class="is-6 has-text-grey-dark">
-                          {{ `@${actor.preferredUsername}` }}
+                          {{ `@${usernameWithDomain(actor)}` }}
                         </p>
                       </div>
                       <div class="media-content" v-else>
-                        {{ `@${actor.preferredUsername}` }}
+                        {{ `@${usernameWithDomain(actor)}` }}
                       </div>
                     </div>
                   </b-checkbox>
@@ -167,6 +167,8 @@ export default class OrganizerPickerWrapper extends Vue {
 
   isComponentModalActive = false;
 
+  usernameWithDomain = usernameWithDomain;
+
   @Prop({ type: Array, required: false, default: () => [] })
   contacts!: IActor[];
   members: Paginate<IMember> = { elements: [], total: 0 };

js/src/components/Participation/ParticipationSection.vue

@@ -192,9 +192,6 @@ export default class ParticipationSection extends Vue {
     if (this.event.draft || this.event.status === EventStatus.CANCELLED)
       return false;
 
-    // Organizer can't participate
-    if (this.actorIsOrganizer) return false;
-
     // If capacity is OK
     if (this.eventCapacityOK) return true;
 

js/src/filters/datetime.ts

@@ -21,19 +21,52 @@ function formatTimeString(value: string): string {
   });
 }
 
-function formatDateTimeString(value: string, showTime = true): string {
+// TODO: These can be removed in favor of dateStyle/timeStyle when those two have sufficient support
-  const options: DateTimeFormatOptions = {
+// https://caniuse.com/mdn-javascript_builtins_intl_datetimeformat_datetimeformat_datestyle
-    weekday: undefined,
+const LONG_DATE_FORMAT_OPTIONS: DateTimeFormatOptions = {
-    year: "numeric",
+  weekday: undefined,
-    month: "long",
+  year: "numeric",
-    day: "numeric",
+  month: "long",
-    hour: undefined,
+  day: "numeric",
-    minute: undefined,
+  hour: undefined,
-  };
+  minute: undefined,
+};
+
+const LONG_TIME_FORMAT_OPTIONS: DateTimeFormatOptions = {
+  weekday: "long",
+  hour: "numeric",
+  minute: "numeric",
+};
+
+const SHORT_DATE_FORMAT_OPTIONS: DateTimeFormatOptions = {
+  weekday: undefined,
+  year: "numeric",
+  month: "short",
+  day: "numeric",
+  hour: undefined,
+  minute: undefined,
+};
+
+const SHORT_TIME_FORMAT_OPTIONS: DateTimeFormatOptions = {
+  weekday: "short",
+  hour: "numeric",
+  minute: "numeric",
+};
+
+function formatDateTimeString(
+  value: string,
+  showTime = true,
+  dateFormat = "long"
+): string {
+  const isLongFormat = dateFormat === "long";
+  let options = isLongFormat
+    ? LONG_DATE_FORMAT_OPTIONS
+    : SHORT_DATE_FORMAT_OPTIONS;
   if (showTime) {
-    options.weekday = "long";
+    options = {
-    options.hour = "numeric";
+      ...options,
-    options.minute = "numeric";
+      ...(isLongFormat ? LONG_TIME_FORMAT_OPTIONS : SHORT_TIME_FORMAT_OPTIONS),
+    };
   }
   const format = new Intl.DateTimeFormat(locale(), options);
   return format.format(parseDateTime(value));

js/src/views/Event/Edit.vue

@@ -1,6 +1,6 @@
 <template>
   <section>
-    <div class="container" v-if="isCurrentActorOrganizer">
+    <div class="container" v-if="hasCurrentActorPermissionsToEdit">
       <h1 class="title" v-if="isUpdate === true">
         {{ $t("Update event {name}", { name: event.title }) }}
       </h1>
@@ -269,6 +269,11 @@
         </b-field>
       </form>
     </div>
+    <div class="container section" v-else>
+      <b-message type="is-danger">
+        {{ $t("Only group moderators can create, edit and delete events.") }}
+      </b-message>
+    </div>
     <b-modal v-model="dateSettingsIsOpen" has-modal-card trap-focus>
       <form action>
         <div class="modal-card" style="width: auto">
@@ -305,7 +310,7 @@
       aria-label="main navigation"
       class="navbar save__navbar"
       :class="{ 'is-fixed-bottom': showFixedNavbar }"
-      v-if="isCurrentActorOrganizer"
+      v-if="hasCurrentActorPermissionsToEdit"
     >
       <div class="container">
         <div class="navbar-menu">
@@ -457,6 +462,7 @@ import {
   EventJoinOptions,
   EventStatus,
   EventVisibility,
+  MemberRole,
   ParticipantRole,
 } from "@/types/enums";
 import OrganizerPickerWrapper from "../../components/Event/OrganizerPickerWrapper.vue";
@@ -472,8 +478,15 @@ import {
   IDENTITIES,
   LOGGED_USER_DRAFTS,
   LOGGED_USER_PARTICIPATIONS,
+  PERSON_MEMBERSHIP_GROUP,
 } from "../../graphql/actor";
-import { displayNameAndUsername, IActor, IGroup } from "../../types/actor";
+import {
+  displayNameAndUsername,
+  IActor,
+  IGroup,
+  IPerson,
+  usernameWithDomain,
+} from "../../types/actor";
 import { TAGS } from "../../graphql/tags";
 import { ITag } from "../../types/tag.model";
 import {
@@ -519,6 +532,22 @@ const DEFAULT_LIMIT_NUMBER_OF_PLACES = 10;
         return !this.eventId;
       },
     },
+    person: {
+      query: PERSON_MEMBERSHIP_GROUP,
+      fetchPolicy: "cache-and-network",
+      variables() {
+        return {
+          id: this.currentActor.id,
+          group: usernameWithDomain(this.event?.attributedTo),
+        };
+      },
+      skip() {
+        return (
+          !this.event?.attributedTo ||
+          !this.event?.attributedTo?.preferredUsername
+        );
+      },
+    },
   },
   metaInfo() {
     return {
@@ -545,6 +574,8 @@ export default class EditEvent extends Vue {
 
   identities: IActor[] = [];
 
+  person!: IPerson;
+
   config!: IConfig;
 
   pictureFile: File | null = null;
@@ -553,8 +584,6 @@ export default class EditEvent extends Vue {
 
   EventVisibility = EventVisibility;
 
-  needsApproval = false;
-
   canPromote = true;
 
   limitedPlaces = false;
@@ -749,13 +778,23 @@ export default class EditEvent extends Vue {
     }
   }
 
-  get isCurrentActorOrganizer(): boolean {
+  get hasCurrentActorPermissionsToEdit(): boolean {
     return !(
       this.eventId &&
       this.event.organizerActor?.id !== undefined &&
       !this.identities
         .map(({ id }) => id)
-        .includes(this.event.organizerActor?.id)
+        .includes(this.event.organizerActor?.id) &&
+      !this.hasGroupPrivileges
+    );
+  }
+
+  get hasGroupPrivileges(): boolean {
+    return (
+      this.person?.memberships?.total > 0 &&
+      [MemberRole.MODERATOR, MemberRole.ADMINISTRATOR].includes(
+        this.person?.memberships?.elements[0].role
+      )
     );
   }
 
@@ -908,9 +947,12 @@ export default class EditEvent extends Vue {
     }
   }
 
-  @Watch("needsApproval")
+  get needsApproval(): boolean {
-  updateEventJoinOptions(needsApproval: boolean): void {
+    return this.event?.joinOptions == EventJoinOptions.RESTRICTED;
-    if (needsApproval === true) {
+  }
+
+  set needsApproval(value: boolean) {
+    if (value === true) {
       this.event.joinOptions = EventJoinOptions.RESTRICTED;
     } else {
       this.event.joinOptions = EventJoinOptions.FREE;

js/src/views/Event/Event.vue

@@ -120,7 +120,7 @@
                       <b-icon icon="link" />
                     </p>
                   </template>
-                  <template v-if="!event.local && organizer">
+                  <template v-if="!event.local && organizer.domain">
                     <a :href="event.url">
                       <tag>{{ organizer.domain }}</tag>
                     </a>
@@ -128,7 +128,7 @@
                   <p>
                     <router-link
                       class="participations-link"
-                      v-if="actorIsOrganizer && event.draft === false"
+                      v-if="canManageEvent && event.draft === false"
                       :to="{
                         name: RouteName.PARTICIPATIONS,
                         params: { eventId: event.uuid },
@@ -214,7 +214,7 @@
                     <b-dropdown-item
                       aria-role="listitem"
                       has-link
-                      v-if="actorIsOrganizer || event.draft"
+                      v-if="canManageEvent || event.draft"
                     >
                       <router-link
                         :to="{
@@ -229,7 +229,7 @@
                     <b-dropdown-item
                       aria-role="listitem"
                       has-link
-                      v-if="actorIsOrganizer || event.draft"
+                      v-if="canManageEvent || event.draft"
                     >
                       <router-link
                         :to="{
@@ -243,7 +243,7 @@
                     </b-dropdown-item>
                     <b-dropdown-item
                       aria-role="listitem"
-                      v-if="actorIsOrganizer || event.draft"
+                      v-if="canManageEvent || event.draft"
                       @click="openDeleteEventModalWrapper"
                     >
                       {{ $t("Delete") }}
@@ -253,7 +253,7 @@
                     <hr
                       class="dropdown-divider"
                       aria-role="menuitem"
-                      v-if="actorIsOrganizer || event.draft"
+                      v-if="canManageEvent || event.draft"
                     />
                     <b-dropdown-item
                       aria-role="listitem"
@@ -623,6 +623,7 @@ import {
   EventJoinOptions,
   EventStatus,
   EventVisibility,
+  MemberRole,
   ParticipantRole,
   RoutingTransportationType,
   RoutingType,
@@ -633,7 +634,10 @@ import {
   FETCH_EVENT,
   JOIN_EVENT,
 } from "../../graphql/event";
-import { CURRENT_ACTOR_CLIENT } from "../../graphql/actor";
+import {
+  CURRENT_ACTOR_CLIENT,
+  PERSON_MEMBERSHIP_GROUP,
+} from "../../graphql/actor";
 import { EventModel, IEvent } from "../../types/event.model";
 import { IActor, IPerson, Person, usernameWithDomain } from "../../types/actor";
 import { GRAPHQL_API_ENDPOINT } from "../../api/_entrypoint";
@@ -738,6 +742,22 @@ import { ApolloCache, FetchResult } from "@apollo/client/core";
         );
       },
     },
+    person: {
+      query: PERSON_MEMBERSHIP_GROUP,
+      fetchPolicy: "cache-and-network",
+      variables() {
+        return {
+          id: this.currentActor.id,
+          group: usernameWithDomain(this.event?.attributedTo),
+        };
+      },
+      skip() {
+        return (
+          !this.event?.attributedTo ||
+          !this.event?.attributedTo?.preferredUsername
+        );
+      },
+    },
     config: CONFIG,
   },
   metaInfo() {
@@ -764,6 +784,8 @@ export default class Event extends EventMixin {
 
   config!: IConfig;
 
+  person!: IPerson;
+
   participations: IParticipant[] = [];
 
   oldParticipationRole!: string;
@@ -1211,6 +1233,19 @@ export default class Event extends EventMixin {
     );
   }
 
+  get hasGroupPrivileges(): boolean {
+    return (
+      this.person?.memberships?.total > 0 &&
+      [MemberRole.MODERATOR, MemberRole.ADMINISTRATOR].includes(
+        this.person?.memberships?.elements[0].role
+      )
+    );
+  }
+
+  get canManageEvent(): boolean {
+    return this.actorIsOrganizer || this.hasGroupPrivileges;
+  }
+
   get endDate(): Date {
     return this.event.endsOn !== null && this.event.endsOn > this.event.beginsOn
       ? this.event.endsOn

js/src/views/Posts/Edit.vue

@@ -207,7 +207,7 @@ import { FETCH_GROUP } from "@/graphql/group";
       variables() {
         return {
           id: this.currentActor.id,
-          group: this.actualGroup.preferredUsername,
+          group: usernameWithDomain(this.actualGroup),
         };
       },
       skip() {

js/src/views/Posts/Post.vue

@@ -24,6 +24,29 @@
                 <b-icon icon="clock" size="is-small" />
                 {{ post.publishAt | formatDateTimeString }}
               </span>
+              <span
+                class="published has-text-grey-dark"
+                :title="
+                  $options.filters.formatDateTimeString(
+                    post.updatedAt,
+                    true,
+                    'short'
+                  )
+                "
+                v-else
+              >
+                <b-icon icon="clock" size="is-small" />
+                {{
+                  $t("Edited {relative_time} ago", {
+                    relative_time: formatDistanceToNowStrict(
+                      new Date(post.updatedAt),
+                      {
+                        locale: $dateFnsLocale,
+                      }
+                    ),
+                  })
+                }}
+              </span>
               <span
                 v-if="post.visibility === PostVisibility.PRIVATE"
                 class="has-text-grey-dark"
@@ -75,7 +98,11 @@ import { mixins } from "vue-class-component";
 import GroupMixin from "@/mixins/group";
 import { PostVisibility } from "@/types/enums";
 import { IMember } from "@/types/actor/member.model";
-import { CURRENT_ACTOR_CLIENT, PERSON_MEMBERSHIPS } from "../../graphql/actor";
+import {
+  CURRENT_ACTOR_CLIENT,
+  PERSON_MEMBERSHIPS,
+  PERSON_MEMBERSHIP_GROUP,
+} from "../../graphql/actor";
 import { FETCH_POST } from "../../graphql/post";
 import { IPost } from "../../types/post.model";
 import { usernameWithDomain } from "../../types/actor";
@@ -83,6 +110,7 @@ import RouteName from "../../router/name";
 import Tag from "../../components/Tag.vue";
 import LazyImageWrapper from "../../components/Image/LazyImageWrapper.vue";
 import ActorInline from "../../components/Account/ActorInline.vue";
+import { formatDistanceToNowStrict } from "date-fns";
 
 @Component({
   apollo: {
@@ -115,6 +143,23 @@ import ActorInline from "../../components/Account/ActorInline.vue";
         this.handleErrors(graphQLErrors);
       },
     },
+    person: {
+      query: PERSON_MEMBERSHIP_GROUP,
+      fetchPolicy: "cache-and-network",
+      variables() {
+        return {
+          id: this.currentActor.id,
+          group: usernameWithDomain(this.post.attributedTo),
+        };
+      },
+      skip() {
+        return (
+          !this.currentActor ||
+          !this.currentActor.id ||
+          !this.post?.attributedTo
+        );
+      },
+    },
   },
   components: {
     Tag,
@@ -144,6 +189,8 @@ export default class Post extends mixins(GroupMixin) {
 
   usernameWithDomain = usernameWithDomain;
 
+  formatDistanceToNowStrict = formatDistanceToNowStrict;
+
   PostVisibility = PostVisibility;
 
   handleErrors(errors: any[]): void {

lib/federation/activity_pub/activity_pub.ex

@@ -426,7 +426,7 @@ defmodule Mobilizon.Federation.ActivityPub do
            "id" => "#{Endpoint.url()}/leave/event/#{participant.id}"
          },
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(participant),
+           Audience.get_audience(participant),
          {:ok, activity} <- create_activity(Map.merge(leave_data, audience), local),
          :ok <- maybe_federate(activity) do
       {:ok, activity, participant}
@@ -803,15 +803,15 @@ defmodule Mobilizon.Federation.ActivityPub do
            Scheduler.trigger_notifications_for_participant(participant),
          participant_as_data <- Convertible.model_to_as(participant),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(participant),
+           Audience.get_audience(participant),
-         update_data <-
+         accept_join_data <-
            make_accept_join_data(
              participant_as_data,
              Map.merge(Map.merge(audience, additional), %{
                "id" => "#{Endpoint.url()}/accept/join/#{participant.id}"
              })
            ) do
-      {:ok, participant, update_data}
+      {:ok, participant, accept_join_data}
     else
       err ->
         Logger.error("Something went wrong while creating an update activity")
@@ -837,15 +837,15 @@ defmodule Mobilizon.Federation.ActivityPub do
          ),
          member_as_data <- Convertible.model_to_as(member),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(member),
+           Audience.get_audience(member),
-         update_data <-
+         accept_join_data <-
            make_accept_join_data(
              member_as_data,
              Map.merge(Map.merge(audience, additional), %{
                "id" => "#{Endpoint.url()}/accept/join/#{member.id}"
              })
            ) do
-      {:ok, member, update_data}
+      {:ok, member, accept_join_data}
     else
       err ->
         Logger.error("Something went wrong while creating an update activity")
@@ -899,7 +899,7 @@ defmodule Mobilizon.Federation.ActivityPub do
          participant_as_data <- Convertible.model_to_as(participant),
          audience <-
            participant
-           |> Audience.calculate_to_and_cc_from_mentions()
+           |> Audience.get_audience()
            |> Map.merge(additional),
          reject_data <- %{
            "type" => "Reject",
@@ -925,7 +925,7 @@ defmodule Mobilizon.Federation.ActivityPub do
     with {:ok, %Follower{} = follower} <- Actors.delete_follower(follower),
          follower_as_data <- Convertible.model_to_as(follower),
          audience <-
-           follower.actor |> Audience.calculate_to_and_cc_from_mentions() |> Map.merge(additional),
+           follower.actor |> Audience.get_audience() |> Map.merge(additional),
          reject_data <- %{
            "to" => [follower.actor.url],
            "type" => "Reject",

lib/federation/activity_pub/actor.ex

@@ -55,6 +55,10 @@ defmodule Mobilizon.Federation.ActivityPub.Actor do
       {:error, "Can't make a local actor from URL"}
     else
       case Fetcher.fetch_and_prepare_actor_from_url(url) do
+        # Just in case
+        {:ok, {:error, _e}} ->
+          raise ArgumentError, message: "Failed to make actor from url #{url}"
+
         {:ok, data} ->
           Actors.upsert_actor(data, preload)
 
@@ -67,7 +71,7 @@ defmodule Mobilizon.Federation.ActivityPub.Actor do
           {:error, :http_error}
 
         {:error, e} ->
-          Logger.warn("Failed to make actor from url")
+          Logger.warn("Failed to make actor from url #{url}")
           {:error, e}
       end
     end

lib/federation/activity_pub/audience.ex

@@ -3,18 +3,99 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
   Tools for calculating content audience
   """
 
-  alias Mobilizon.Actors
+  alias Mobilizon.{Actors, Events, Share}
   alias Mobilizon.Actors.{Actor, Member}
   alias Mobilizon.Discussions.{Comment, Discussion}
   alias Mobilizon.Events.{Event, Participant}
   alias Mobilizon.Posts.Post
-  alias Mobilizon.Share
   alias Mobilizon.Storage.Repo
 
   require Logger
 
   @ap_public "https://www.w3.org/ns/activitystreams#Public"
 
+  @type audience :: %{required(String.t()) => list(String.t())}
+
+  @doc """
+  Get audience for an entity
+  """
+  @spec get_audience(Entity.t()) :: audience()
+  def get_audience(%Event{} = event) do
+    extract_actors_from_event(event)
+  end
+
+  def get_audience(%Post{draft: true} = post) do
+    get_audience(%Post{post | visibility: :private, draft: false})
+  end
+
+  def get_audience(%Post{attributed_to: %Actor{} = group, visibility: visibility}) do
+    {to, cc} = get_to_and_cc(group, [], visibility)
+    %{"to" => to, "cc" => cc}
+  end
+
+  def get_audience(%Discussion{actor: actor}) do
+    %{"to" => maybe_add_group_members([], actor), "cc" => []}
+  end
+
+  def get_audience(%Comment{discussion: %Discussion{} = discussion}) do
+    get_audience(discussion)
+  end
+
+  def get_audience(%Comment{
+        mentions: mentions,
+        actor: %Actor{} = actor,
+        visibility: visibility,
+        in_reply_to_comment: in_reply_to_comment,
+        event: event,
+        origin_comment: origin_comment,
+        url: url
+      }) do
+    with {to, cc} <-
+           extract_actors_from_mentions(mentions, actor, visibility),
+         {to, cc} <- {Enum.uniq(to ++ add_in_reply_to(in_reply_to_comment)), cc},
+         {to, cc} <- {Enum.uniq(to ++ add_event_author(event)), cc},
+         {to, cc} <-
+           {to,
+            Enum.uniq(
+              cc ++
+                add_comments_authors([origin_comment]) ++
+                add_shares_actors_followers(url)
+            )} do
+      %{"to" => to, "cc" => cc}
+    end
+  end
+
+  def get_audience(%Participant{} = participant) do
+    %Event{} = event = Events.get_event_with_preload!(participant.event_id)
+    %Actor{} = organizer = group_or_organizer_event(event)
+
+    cc =
+      event.id
+      |> Mobilizon.Events.list_actors_participants_for_event()
+      |> Enum.map(& &1.url)
+      |> Enum.filter(&(&1 != participant.actor.url))
+      |> maybe_add_group_members(organizer)
+      |> maybe_add_followers(organizer)
+
+    %{
+      "to" => [participant.actor.url, organizer.url],
+      "cc" => cc
+    }
+  end
+
+  def get_audience(%Member{} = member) do
+    %{"to" => [member.parent.url, member.parent.members_url], "cc" => []}
+  end
+
+  def get_audience(%Actor{} = actor) do
+    %{
+      "to" => [@ap_public],
+      "cc" =>
+        maybe_add_group_members([actor.followers_url], actor) ++
+          add_actors_that_had_our_content(actor.id)
+    }
+  end
+
   @doc """
   Determines the full audience based on mentions for an audience
 
@@ -39,6 +120,8 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
     to = [@ap_public | mentions]
     cc = [actor.followers_url]
 
+    cc = maybe_add_group_members(cc, actor)
+
     {to, cc}
   end
 
@@ -47,13 +130,18 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
     to = [actor.followers_url | mentions]
     cc = [@ap_public]
 
+    to = maybe_add_group_members(to, actor)
+
     {to, cc}
   end
 
   @spec get_to_and_cc(Actor.t(), list(), String.t()) :: {list(), list()}
   def get_to_and_cc(%Actor{} = actor, mentions, :private) do
     {to, cc} = get_to_and_cc(actor, mentions, :direct)
-    {[actor.followers_url | to], cc}
+
+    to = maybe_add_group_members(to, actor)
+
+    {to, cc}
   end
 
   @spec get_to_and_cc(Actor.t(), list(), String.t()) :: {list(), list()}
@@ -65,125 +153,31 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
     {mentions, []}
   end
 
+  @spec maybe_add_group_members(List.t(), Actor.t()) :: List.t()
+  defp maybe_add_group_members(collection, %Actor{type: :Group, members_url: members_url}) do
+    [members_url | collection]
+  end
+
+  defp maybe_add_group_members(collection, %Actor{type: _}), do: collection
+
+  @spec maybe_add_followers(List.t(), Actor.t()) :: List.t()
+  defp maybe_add_followers(collection, %Actor{type: :Group, followers_url: followers_url}) do
+    [followers_url | collection]
+  end
+
+  defp maybe_add_followers(collection, %Actor{type: _}), do: collection
+
   def get_addressed_actors(mentioned_users, _), do: mentioned_users
 
-  def calculate_to_and_cc_from_mentions(
-        %Comment{discussion: %Discussion{actor_id: actor_id}} = _comment
-      ) do
-    with %Actor{type: :Group, members_url: members_url} <- Actors.get_actor(actor_id) do
-      %{"to" => [members_url], "cc" => []}
-    end
-  end
-
-  def calculate_to_and_cc_from_mentions(%Comment{} = comment) do
-    with {to, cc} <-
-           extract_actors_from_mentions(comment.mentions, comment.actor, comment.visibility),
-         {to, cc} <- {Enum.uniq(to ++ add_in_reply_to(comment.in_reply_to_comment)), cc},
-         {to, cc} <- {Enum.uniq(to ++ add_event_author(comment.event)), cc},
-         {to, cc} <-
-           {to,
-            Enum.uniq(
-              cc ++
-                add_comments_authors([comment.origin_comment]) ++
-                add_shares_actors_followers(comment.url)
-            )} do
-      %{"to" => to, "cc" => cc}
-    end
-  end
-
-  def calculate_to_and_cc_from_mentions(%Discussion{actor_id: actor_id}) do
-    with %Actor{type: :Group, members_url: members_url} <- Actors.get_actor(actor_id) do
-      %{"to" => [members_url], "cc" => []}
-    end
-  end
-
-  def calculate_to_and_cc_from_mentions(
-        %Event{
-          attributed_to: %Actor{members_url: members_url},
-          visibility: visibility
-        } = event
-      ) do
-    %{"to" => to, "cc" => cc} = extract_actors_from_event(event)
-
-    case visibility do
-      :public ->
-        %{"to" => [@ap_public, members_url] ++ to, "cc" => [] ++ cc}
-
-      :unlisted ->
-        %{"to" => [members_url] ++ to, "cc" => [@ap_public] ++ cc}
-
-      :private ->
-        # Private is restricted to only the members
-        %{"to" => [members_url], "cc" => []}
-    end
-  end
-
-  def calculate_to_and_cc_from_mentions(%Event{} = event) do
-    extract_actors_from_event(event)
-  end
-
-  def calculate_to_and_cc_from_mentions(%Post{
-        attributed_to: %Actor{members_url: members_url, followers_url: followers_url},
-        visibility: visibility,
-        draft: draft
-      }) do
-    cond do
-      # If the post is draft we send it only to members
-      draft == true ->
-        %{"to" => [members_url], "cc" => []}
-
-      # If public everyone
-      visibility == :public ->
-        %{"to" => [@ap_public, members_url], "cc" => [followers_url]}
-
-      # Otherwise just followers
-      visibility == :unlisted ->
-        %{"to" => [followers_url, members_url], "cc" => [@ap_public]}
-
-      visibility == :private ->
-        # Private is restricted to only the members
-        %{"to" => [members_url], "cc" => []}
-
-      true ->
-        %{"to" => [], "cc" => []}
-    end
-  end
-
-  def calculate_to_and_cc_from_mentions(%Participant{} = participant) do
-    participant = Repo.preload(participant, [:actor, :event])
-
-    actor_participants_urls =
-      participant.event.id
-      |> Mobilizon.Events.list_actors_participants_for_event()
-      |> Enum.map(& &1.url)
-
-    %{"to" => [participant.actor.url], "cc" => actor_participants_urls}
-  end
-
-  def calculate_to_and_cc_from_mentions(%Member{} = member) do
-    member = Repo.preload(member, [:parent])
-
-    %{"to" => [member.parent.members_url], "cc" => []}
-  end
-
-  def calculate_to_and_cc_from_mentions(%Actor{} = actor) do
-    %{
-      "to" => [@ap_public],
-      "cc" => [actor.followers_url] ++ add_actors_that_had_our_content(actor.id)
-    }
-  end
-
   defp add_in_reply_to(%Comment{actor: %Actor{url: url}} = _comment), do: [url]
   defp add_in_reply_to(%Event{organizer_actor: %Actor{url: url}} = _event), do: [url]
   defp add_in_reply_to(_), do: []
 
-  defp add_event_author(nil), do: []
-
   defp add_event_author(%Event{} = event) do
     [Repo.preload(event, [:organizer_actor]).organizer_actor.url]
   end
 
-  defp add_comment_author(nil), do: nil
+  defp add_event_author(_), do: []
 
   defp add_comment_author(%Comment{} = comment) do
     case Repo.preload(comment, [:actor]) do
@@ -195,6 +189,8 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
     end
   end
 
+  defp add_comment_author(_), do: nil
+
   defp add_comments_authors(comments) do
     authors =
       comments
@@ -208,8 +204,6 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
   defp add_shares_actors_followers(uri) do
     uri
     |> Share.get_actors_by_share_uri()
-    |> Enum.map(&Actors.list_followers_actors_for_actor/1)
-    |> List.flatten()
     |> Enum.map(& &1.url)
     |> Enum.uniq()
   end
@@ -217,8 +211,6 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
   defp add_actors_that_had_our_content(actor_id) do
     actor_id
     |> Share.get_actors_by_owner_actor_id()
-    |> Enum.map(&Actors.list_followers_actors_for_actor/1)
-    |> List.flatten()
     |> Enum.map(& &1.url)
     |> Enum.uniq()
   end
@@ -241,7 +233,11 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
 
   defp extract_actors_from_event(%Event{} = event) do
     with {to, cc} <-
-           extract_actors_from_mentions(event.mentions, event.organizer_actor, event.visibility),
+           extract_actors_from_mentions(
+             event.mentions,
+             group_or_organizer_event(event),
+             event.visibility
+           ),
          {to, cc} <-
            {to,
             Enum.uniq(
@@ -253,4 +249,8 @@ defmodule Mobilizon.Federation.ActivityPub.Audience do
         %{"to" => [], "cc" => []}
     end
   end
+
+  @spec group_or_organizer_event(Event.t()) :: Actor.t()
+  defp group_or_organizer_event(%Event{attributed_to: %Actor{} = group}), do: group
+  defp group_or_organizer_event(%Event{organizer_actor: %Actor{} = actor}), do: actor
 end

lib/federation/activity_pub/permission.ex

@@ -0,0 +1,134 @@
+defmodule Mobilizon.Federation.ActivityPub.Permission do
+  @moduledoc """
+  Module to check group members permissions on objects
+  """
+
+  alias Mobilizon.Actors
+  alias Mobilizon.Actors.Actor
+  alias Mobilizon.Federation.ActivityPub.Types.{Entity, Ownable}
+  require Logger
+
+  use StructAccess
+  defstruct [:access, :create, :update, :delete]
+
+  @member_roles [:member, :moderator, :administrator]
+
+  @doc """
+  Check that actor can access the object
+  """
+  @spec can_access_group_object?(Actor.t(), Entity.t()) :: boolean()
+  def can_access_group_object?(%Actor{} = actor, object) do
+    can_manage_group_object?(:access, actor, object)
+  end
+
+  @doc """
+  Check that actor can create such an object
+  """
+  @spec can_create_group_object?(String.t() | integer(), String.t() | integer(), Entity.t()) ::
+          boolean()
+  def can_create_group_object?(
+        actor_id,
+        group_id,
+        object
+      ) do
+    case object |> Ownable.permissions() |> get_in([:create]) do
+      :member ->
+        Actors.is_member?(actor_id, group_id)
+
+      :moderator ->
+        Actors.is_moderator?(actor_id, group_id)
+
+      :administrator ->
+        Actors.is_administrator?(actor_id, group_id)
+
+      _ ->
+        false
+    end
+  end
+
+  @doc """
+  Check that actor can update the object
+  """
+  @spec can_update_group_object?(Actor.t(), Entity.t()) :: boolean()
+  def can_update_group_object?(%Actor{} = actor, object) do
+    can_manage_group_object?(:update, actor, object)
+  end
+
+  @doc """
+  Check that actor can delete the object
+  """
+  @spec can_delete_group_object?(Actor.t(), Entity.t()) :: boolean()
+  def can_delete_group_object?(%Actor{} = actor, object) do
+    can_manage_group_object?(:delete, actor, object)
+  end
+
+  @type existing_object_permissions :: :access | :update | :delete
+
+  @spec can_manage_group_object?(
+          existing_object_permissions(),
+          Actor.t(),
+          any()
+        ) :: boolean()
+  defp can_manage_group_object?(permission, %Actor{url: actor_url} = actor, object) do
+    if Ownable.group_actor(object) != nil do
+      case object |> Ownable.permissions() |> get_in([permission]) do
+        role when role in @member_roles ->
+          activity_actor_is_group_member?(actor, object, role)
+
+        _ ->
+          case permission do
+            :access ->
+              Logger.warn("Actor #{actor_url} can't access #{object.url}")
+
+            :update ->
+              Logger.warn("Actor #{actor_url} can't update #{object.url}")
+
+            :delete ->
+              Logger.warn("Actor #{actor_url} can't delete #{object.url}")
+          end
+
+          false
+      end
+    else
+      true
+    end
+  end
+
+  @spec activity_actor_is_group_member?(Actor.t(), Entity.t(), atom()) :: boolean()
+  defp activity_actor_is_group_member?(
+         %Actor{id: actor_id, url: actor_url},
+         object,
+         role
+       ) do
+    case Ownable.group_actor(object) do
+      %Actor{type: :Group, id: group_id, url: group_url} ->
+        Logger.debug("Group object url is #{group_url}")
+
+        case role do
+          :moderator ->
+            Logger.debug(
+              "Checking if activity actor #{actor_url} is a moderator from group from #{object.url}"
+            )
+
+            Actors.is_moderator?(actor_id, group_id)
+
+          :administrator ->
+            Logger.debug(
+              "Checking if activity actor #{actor_url} is an administrator from group from #{object.url}"
+            )
+
+            Actors.is_administrator?(actor_id, group_id)
+
+          _ ->
+            Logger.debug(
+              "Checking if activity actor #{actor_url} is a member from group from #{object.url}"
+            )
+
+            Actors.is_member?(actor_id, group_id)
+        end
+
+      _ ->
+        false
+    end
+  end
+end

lib/federation/activity_pub/preloader.ex

@@ -14,7 +14,7 @@ defmodule Mobilizon.Federation.ActivityPub.Preloader do
 
   @spec maybe_preload(struct()) :: {:ok, struct()} | {:error, struct()}
   def maybe_preload(%Event{url: url}),
-    do: {:ok, Events.get_public_event_by_url_with_preload!(url)}
+    do: {:ok, Events.get_event_by_url!(url)}
 
   def maybe_preload(%Comment{url: url}),
     do: {:ok, Discussions.get_comment_from_url_with_preload!(url)}

lib/federation/activity_pub/transmogrifier.ex

@@ -17,7 +17,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
   alias Mobilizon.Todos.{Todo, TodoList}
 
   alias Mobilizon.Federation.ActivityPub
-  alias Mobilizon.Federation.ActivityPub.{Activity, Relay, Utils}
+  alias Mobilizon.Federation.ActivityPub.{Activity, Permission, Relay, Utils}
   alias Mobilizon.Federation.ActivityPub.Actor, as: ActivityPubActor
   alias Mobilizon.Federation.ActivityPub.Types.Ownable
   alias Mobilizon.Federation.ActivityStream.{Converter, Convertible}
@@ -409,7 +409,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
          {:origin_check, true} <-
            {:origin_check,
             Utils.origin_check?(actor_url, update_data) ||
-              Utils.can_update_group_object?(actor, old_event)},
+              Permission.can_update_group_object?(actor, old_event)},
          {:ok, %Activity{} = activity, %Event{} = new_event} <-
            ActivityPub.update(old_event, object_data, false) do
       {:ok, activity, new_event}
@@ -454,7 +454,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
          {:origin_check, true} <-
            {:origin_check,
             Utils.origin_check?(actor_url, update_data["object"]) ||
-              Utils.can_update_group_object?(actor, old_post)},
+              Permission.can_update_group_object?(actor, old_post)},
          {:ok, %Activity{} = activity, %Post{} = new_post} <-
            ActivityPub.update(old_post, object_data, false) do
       {:ok, activity, new_post}
@@ -482,7 +482,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
          {:origin_check, true} <-
            {:origin_check,
             Utils.origin_check?(actor_url, update_data) ||
-              Utils.can_update_group_object?(actor, old_resource)},
+              Permission.can_update_group_object?(actor, old_resource)},
          {:ok, %Activity{} = activity, %Resource{} = new_resource} <-
            ActivityPub.update(old_resource, object_data, false) do
       {:ok, activity, new_resource}
@@ -585,7 +585,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
          {:origin_check, true} <-
            {:origin_check,
             Utils.origin_check_from_id?(actor_url, object_id) ||
-              Utils.can_delete_group_object?(actor, object)},
+              Permission.can_delete_group_object?(actor, object)},
          {:ok, activity, object} <- ActivityPub.delete(object, actor, false) do
       {:ok, activity, object}
     else
@@ -629,7 +629,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
          {:origin_check, true} <-
            {:origin_check,
             Utils.origin_check?(actor_url, data) ||
-              Utils.can_update_group_object?(actor, old_resource)},
+              Permission.can_update_group_object?(actor, old_resource)},
          {:ok, activity, new_resource} <- ActivityPub.move(:resource, old_resource, object_data) do
       {:ok, activity, new_resource}
     else
@@ -837,7 +837,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
 
   # Handle incoming `Accept` activities wrapping a `Join` activity on an event
   defp do_handle_incoming_accept_join(join_object, %Actor{} = actor_accepting) do
-    case get_participant(join_object) do
+    case get_participant(join_object, actor_accepting) do
       {:ok, participant} ->
         do_handle_incoming_accept_join_event(participant, actor_accepting)
 
@@ -868,9 +868,9 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
          %Actor{} = actor_accepting
        )
        when role in [:not_approved, :rejected] do
-    # TODO: The actor that accepts the Join activity may another one that the event organizer ?
+    with %Event{} = event <- Events.get_event_with_preload!(event.id),
-    # Or maybe for groups it's the group that sends the Accept activity
+         {:can_accept_event_join, true} <-
-    with {:same_actor, true} <- {:same_actor, actor_accepting.id == event.organizer_actor_id},
+           {:can_accept_event_join, can_accept_event_join?(actor_accepting, event)},
          {:ok, %Activity{} = activity, %Participant{role: :participant} = participant} <-
            ActivityPub.accept(
              :join,
@@ -881,8 +881,8 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
            Participation.send_emails_to_local_user(participant) do
       {:ok, activity, participant}
     else
-      {:same_actor} ->
+      {:can_accept_event_join, false} ->
-        {:error, "Actor who accepted the join wasn't the event organizer. Quite odd."}
+        {:error, "Actor who accepted the join didn't have permission to do so."}
 
       {:ok, %Participant{role: :participant} = _follow} ->
         {:error, "Participant"}
@@ -902,7 +902,6 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
          type
        )
        when role in [:not_approved, :rejected, :invited] and type in [:join, :invite] do
-    # TODO: The actor that accepts the Join activity may another one that the event organizer ?
     # Or maybe for groups it's the group that sends the Accept activity
     with {:ok, %Activity{} = activity, %Member{role: :member} = member} <-
            ActivityPub.accept(
@@ -918,7 +917,7 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
   defp do_handle_incoming_reject_join(join_object, %Actor{} = actor_accepting) do
     with {:join_event, {:ok, %Participant{event: event, role: role} = participant}}
          when role != :rejected <-
-           {:join_event, get_participant(join_object)},
+           {:join_event, get_participant(join_object, actor_accepting)},
          # TODO: The actor that accepts the Join activity may another one that the event organizer ?
          # Or maybe for groups it's the group that sends the Accept activity
          {:same_actor, true} <- {:same_actor, actor_accepting.id == event.organizer_actor_id},
@@ -1026,14 +1025,22 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
     end
   end
 
-  defp get_participant(join_object) do
+  defp get_participant(join_object, %Actor{} = actor_accepting, loop \\ 1) do
     with join_object_id when not is_nil(join_object_id) <- Utils.get_url(join_object),
          {:not_found, %Participant{} = participant} <-
            {:not_found, Events.get_participant_by_url(join_object_id)} do
       {:ok, participant}
     else
       {:not_found, _err} ->
-        {:error, "Participant URL not found"}
+        with true <- is_map(join_object),
+             true <- loop < 2,
+             true <- Utils.are_same_origin?(actor_accepting.url, join_object["id"]),
+             {:ok, _activity, %Participant{url: participant_url}} <- handle_incoming(join_object) do
+          get_participant(participant_url, actor_accepting, 2)
+        else
+          _ ->
+            {:error, "Participant URL not found"}
+        end
 
       _ ->
         {:error, "ActivityPub ID not found in Accept Join object"}
@@ -1130,4 +1137,22 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier do
       _ -> {:error, :remove_object_not_found}
     end
   end
+
+  defp can_accept_event_join?(
+         %Actor{url: actor_url} = actor,
+         %Event{attributed_to: %Actor{type: :Group, url: group_url} = _group} = event
+       ) do
+    actor_url == group_url || Permission.can_update_group_object?(actor, event)
+  end
+
+  defp can_accept_event_join?(
+         %Actor{id: actor_id},
+         %Event{organizer_actor: %Actor{id: organizer_actor_id}}
+       ) do
+    organizer_actor_id == actor_id
+  end
+
+  defp can_accept_event_join?(_actor, _event) do
+    false
+  end
 end

lib/federation/activity_pub/types/actors.ex

@@ -3,7 +3,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Actors do
   alias Mobilizon.Actors
   alias Mobilizon.Actors.{Actor, Follower, Member}
   alias Mobilizon.Federation.ActivityPub
-  alias Mobilizon.Federation.ActivityPub.{Audience, Relay}
+  alias Mobilizon.Federation.ActivityPub.{Audience, Permission, Relay}
   alias Mobilizon.Federation.ActivityPub.Types.Entity
   alias Mobilizon.Federation.ActivityStream.Convertible
   alias Mobilizon.GraphQL.API.Utils, as: APIUtils
@@ -47,7 +47,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Actors do
          actor_as_data <- Convertible.model_to_as(new_actor),
          {:ok, true} <- Cachex.del(:activity_pub, "actor_#{new_actor.preferred_username}"),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(new_actor),
+           Audience.get_audience(new_actor),
          additional <- Map.merge(additional, %{"actor" => old_actor.url}),
          update_data <- make_update_data(actor_as_data, Map.merge(audience, additional)) do
       {:ok, new_actor, update_data}
@@ -104,8 +104,14 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Actors do
 
   def group_actor(%Actor{} = actor), do: actor
 
-  def role_needed_to_update(%Actor{} = _group), do: :administrator
+  def permissions(%Actor{} = _group) do
-  def role_needed_to_delete(%Actor{} = _group), do: :administrator
+    %Permission{
+      access: :member,
+      create: nil,
+      update: :administrator,
+      delete: :administrator
+    }
+  end
 
   @spec join(Actor.t(), Actor.t(), boolean(), map()) :: {:ok, map(), Member.t()}
   def join(%Actor{type: :Group} = group, %Actor{} = actor, _local, additional) do
@@ -136,7 +142,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Actors do
            "object" => group.url
          },
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(member) do
+           Audience.get_audience(member) do
       approve_if_default_role_is_member(
         group,
         actor,

lib/federation/activity_pub/types/comments.ex

@@ -4,7 +4,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Comments do
   alias Mobilizon.Actors.Actor
   alias Mobilizon.Discussions.{Comment, Discussion}
   alias Mobilizon.Events.{Event, EventOptions}
-  alias Mobilizon.Federation.ActivityPub.Audience
+  alias Mobilizon.Federation.ActivityPub.{Audience, Permission}
   alias Mobilizon.Federation.ActivityPub.Types.Entity
   alias Mobilizon.Federation.ActivityStream.Converter.Utils, as: ConverterUtils
   alias Mobilizon.Federation.ActivityStream.Convertible
@@ -32,7 +32,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Comments do
          :ok <- maybe_publish_graphql_subscription(discussion_id),
          comment_as_data <- Convertible.model_to_as(comment),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(comment),
+           Audience.get_audience(comment),
          create_data <-
            make_create_data(comment_as_data, Map.merge(audience, additional)) do
       {:ok, comment, create_data}
@@ -47,7 +47,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Comments do
          {:ok, true} <- Cachex.del(:activity_pub, "comment_#{new_comment.uuid}"),
          comment_as_data <- Convertible.model_to_as(new_comment),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(new_comment),
+           Audience.get_audience(new_comment),
          update_data <- make_update_data(comment_as_data, Map.merge(audience, additional)) do
       {:ok, new_comment, update_data}
     else
@@ -79,7 +79,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Comments do
     force_deletion = Map.get(options, :force, false)
 
     with audience <-
-           Audience.calculate_to_and_cc_from_mentions(comment),
+           Audience.get_audience(comment),
          {:ok, %Comment{} = updated_comment} <-
            Discussions.delete_comment(comment, force: force_deletion),
          {:ok, true} <- Cachex.del(:activity_pub, "comment_#{comment.uuid}"),
@@ -104,8 +104,13 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Comments do
 
   def group_actor(_), do: nil
 
-  def role_needed_to_update(%Comment{attributed_to: %Actor{} = _group}), do: :administrator
+  def permissions(%Comment{}),
-  def role_needed_to_delete(%Comment{attributed_to_id: _attributed_to_id}), do: :administrator
+    do: %Permission{
+      access: :member,
+      create: :member,
+      update: :administrator,
+      delete: :administrator
+    }
 
   # Prepare and sanitize arguments for comments
   defp prepare_args_for_comment(args) do

lib/federation/activity_pub/types/discussions.ex

@@ -4,7 +4,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Discussions do
   alias Mobilizon.{Actors, Discussions}
   alias Mobilizon.Actors.Actor
   alias Mobilizon.Discussions.{Comment, Discussion}
-  alias Mobilizon.Federation.ActivityPub.Audience
+  alias Mobilizon.Federation.ActivityPub.{Audience, Permission}
   alias Mobilizon.Federation.ActivityPub.Types.Entity
   alias Mobilizon.Federation.ActivityStream.Convertible
   alias Mobilizon.GraphQL.API.Utils, as: APIUtils
@@ -31,7 +31,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Discussions do
          :ok <- maybe_publish_graphql_subscription(discussion),
          comment_as_data <- Convertible.model_to_as(last_comment),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(discussion),
+           Audience.get_audience(discussion),
          create_data <-
            make_create_data(comment_as_data, Map.merge(audience, additional)) do
       {:ok, discussion, create_data}
@@ -48,7 +48,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Discussions do
            DiscussionActivity.insert_activity(discussion, subject: "discussion_created"),
          discussion_as_data <- Convertible.model_to_as(discussion),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(discussion),
+           Audience.get_audience(discussion),
          create_data <-
            make_create_data(discussion_as_data, Map.merge(audience, additional)) do
       {:ok, discussion, create_data}
@@ -68,7 +68,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Discussions do
          {:ok, true} <- Cachex.del(:activity_pub, "discussion_#{new_discussion.slug}"),
          discussion_as_data <- Convertible.model_to_as(new_discussion),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(new_discussion),
+           Audience.get_audience(new_discussion),
          update_data <- make_update_data(discussion_as_data, Map.merge(audience, additional)) do
       {:ok, new_discussion, update_data}
     else
@@ -110,8 +110,9 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Discussions do
 
   def group_actor(%Discussion{actor_id: actor_id}), do: Actors.get_actor(actor_id)
 
-  def role_needed_to_update(%Discussion{}), do: :moderator
+  def permissions(%Discussion{}) do
-  def role_needed_to_delete(%Discussion{}), do: :moderator
+    %Permission{access: :member, create: :member, update: :moderator, delete: :moderator}
+  end
 
   @spec maybe_publish_graphql_subscription(Discussion.t()) :: :ok
   defp maybe_publish_graphql_subscription(%Discussion{} = discussion) do

lib/federation/activity_pub/types/entity.ex

@@ -17,6 +17,7 @@ alias Mobilizon.Federation.ActivityPub.Types.{
 alias Mobilizon.Actors.{Actor, Member}
 alias Mobilizon.Events.Event
 alias Mobilizon.Discussions.{Comment, Discussion}
+alias Mobilizon.Federation.ActivityPub.Permission
 alias Mobilizon.Posts.Post
 alias Mobilizon.Resources.Resource
 alias Mobilizon.Todos.{Todo, TodoList}
@@ -67,11 +68,8 @@ defprotocol Mobilizon.Federation.ActivityPub.Types.Ownable do
   @doc "Returns the actor for the entity"
   def actor(entity)
 
-  @spec role_needed_to_update(Entity.t()) :: group_role()
+  @spec permissions(Entity.t()) :: Permission.t()
-  def role_needed_to_update(entity)
+  def permissions(entity)
-
-  @spec role_needed_to_delete(Entity.t()) :: group_role()
-  def role_needed_to_delete(entity)
 end
 
 defimpl Managable, for: Event do
@@ -82,8 +80,7 @@ end
 defimpl Ownable, for: Event do
   defdelegate group_actor(entity), to: Events
   defdelegate actor(entity), to: Events
-  defdelegate role_needed_to_update(entity), to: Events
+  defdelegate permissions(entity), to: Events
-  defdelegate role_needed_to_delete(entity), to: Events
 end
 
 defimpl Managable, for: Comment do
@@ -94,8 +91,7 @@ end
 defimpl Ownable, for: Comment do
   defdelegate group_actor(entity), to: Comments
   defdelegate actor(entity), to: Comments
-  defdelegate role_needed_to_update(entity), to: Comments
+  defdelegate permissions(entity), to: Comments
-  defdelegate role_needed_to_delete(entity), to: Comments
 end
 
 defimpl Managable, for: Post do
@@ -106,8 +102,7 @@ end
 defimpl Ownable, for: Post do
   defdelegate group_actor(entity), to: Posts
   defdelegate actor(entity), to: Posts
-  defdelegate role_needed_to_update(entity), to: Posts
+  defdelegate permissions(entity), to: Posts
-  defdelegate role_needed_to_delete(entity), to: Posts
 end
 
 defimpl Managable, for: Actor do
@@ -118,8 +113,7 @@ end
 defimpl Ownable, for: Actor do
   defdelegate group_actor(entity), to: Actors
   defdelegate actor(entity), to: Actors
-  defdelegate role_needed_to_update(entity), to: Actors
+  defdelegate permissions(entity), to: Actors
-  defdelegate role_needed_to_delete(entity), to: Actors
 end
 
 defimpl Managable, for: TodoList do
@@ -130,8 +124,7 @@ end
 defimpl Ownable, for: TodoList do
   defdelegate group_actor(entity), to: TodoLists
   defdelegate actor(entity), to: TodoLists
-  defdelegate role_needed_to_update(entity), to: TodoLists
+  defdelegate permissions(entity), to: TodoLists
-  defdelegate role_needed_to_delete(entity), to: TodoLists
 end
 
 defimpl Managable, for: Todo do
@@ -142,8 +135,7 @@ end
 defimpl Ownable, for: Todo do
   defdelegate group_actor(entity), to: Todos
   defdelegate actor(entity), to: Todos
-  defdelegate role_needed_to_update(entity), to: Todos
+  defdelegate permissions(entity), to: Todos
-  defdelegate role_needed_to_delete(entity), to: Todos
 end
 
 defimpl Managable, for: Resource do
@@ -154,8 +146,7 @@ end
 defimpl Ownable, for: Resource do
   defdelegate group_actor(entity), to: Resources
   defdelegate actor(entity), to: Resources
-  defdelegate role_needed_to_update(entity), to: Resources
+  defdelegate permissions(entity), to: Resources
-  defdelegate role_needed_to_delete(entity), to: Resources
 end
 
 defimpl Managable, for: Discussion do
@@ -166,15 +157,13 @@ end
 defimpl Ownable, for: Discussion do
   defdelegate group_actor(entity), to: Discussions
   defdelegate actor(entity), to: Discussions
-  defdelegate role_needed_to_update(entity), to: Discussions
+  defdelegate permissions(entity), to: Discussions
-  defdelegate role_needed_to_delete(entity), to: Discussions
 end
 
 defimpl Ownable, for: Tombstone do
   defdelegate group_actor(entity), to: Tombstones
   defdelegate actor(entity), to: Tombstones
-  defdelegate role_needed_to_update(entity), to: Tombstones
+  defdelegate permissions(entity), to: Tombstones
-  defdelegate role_needed_to_delete(entity), to: Tombstones
 end
 
 defimpl Managable, for: Member do

lib/federation/activity_pub/types/events.ex

@@ -5,7 +5,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Events do
   alias Mobilizon.Events, as: EventsManager
   alias Mobilizon.Events.{Event, Participant}
   alias Mobilizon.Federation.ActivityPub
-  alias Mobilizon.Federation.ActivityPub.Audience
+  alias Mobilizon.Federation.ActivityPub.{Audience, Permission}
   alias Mobilizon.Federation.ActivityPub.Types.Entity
   alias Mobilizon.Federation.ActivityStream.Converter.Utils, as: ConverterUtils
   alias Mobilizon.Federation.ActivityStream.Convertible
@@ -29,7 +29,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Events do
            EventActivity.insert_activity(event, subject: "event_created"),
          event_as_data <- Convertible.model_to_as(event),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(event),
+           Audience.get_audience(event),
          create_data <-
            make_create_data(event_as_data, Map.merge(audience, additional)) do
       {:ok, event, create_data}
@@ -46,7 +46,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Events do
          {:ok, true} <- Cachex.del(:activity_pub, "event_#{new_event.uuid}"),
          event_as_data <- Convertible.model_to_as(new_event),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(new_event),
+           Audience.get_audience(new_event),
          update_data <- make_update_data(event_as_data, Map.merge(audience, additional)) do
       {:ok, new_event, update_data}
     else
@@ -69,7 +69,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Events do
     }
 
     with audience <-
-           Audience.calculate_to_and_cc_from_mentions(event),
+           Audience.get_audience(event),
          {:ok, %Event{} = event} <- EventsManager.delete_event(event),
          {:ok, _} <-
            EventActivity.insert_activity(event, subject: "event_deleted"),
@@ -95,9 +95,14 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Events do
 
   def group_actor(_), do: nil
 
-  def role_needed_to_update(%Event{attributed_to: %Actor{} = _group}), do: :moderator
+  def permissions(%Event{draft: draft, attributed_to_id: _attributed_to_id}) do
-  def role_needed_to_delete(%Event{attributed_to_id: _attributed_to_id}), do: :moderator
+    %Permission{
-  def role_needed_to_delete(_), do: nil
+      access: if(draft, do: nil, else: :member),
+      create: :moderator,
+      update: :moderator,
+      delete: :moderator
+    }
+  end
 
   def join(%Event{} = event, %Actor{} = actor, _local, additional) do
     with {:maximum_attendee_capacity, true} <-
@@ -119,7 +124,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Events do
            }),
          join_data <- Convertible.model_to_as(participant),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(participant) do
+           Audience.get_audience(participant) do
       approve_if_default_role_is_participant(
         event,
         Map.merge(join_data, audience),
@@ -142,28 +147,48 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Events do
 
   # Set the participant to approved if the default role for new participants is :participant
   defp approve_if_default_role_is_participant(event, activity_data, participant, role) do
-    if event.local do
+    case event do
-      cond do
+      %Event{attributed_to: %Actor{id: group_id, url: group_url}} ->
-        Mobilizon.Events.get_default_participant_role(event) === :participant &&
+        case Actors.get_single_group_moderator_actor(group_id) do
-            role == :participant ->
+          %Actor{} = actor ->
-          {:accept,
+            do_approve(event, activity_data, participant, role, %{
-           ActivityPub.accept(
+              "actor" => actor.url,
-             :join,
+              "attributedTo" => group_url
-             participant,
+            })
-             true,
-             %{"actor" => event.organizer_actor.url}
-           )}
 
-        Mobilizon.Events.get_default_participant_role(event) === :not_approved &&
+          _ ->
-            role == :not_approved ->
+            {:ok, activity_data, participant}
-          Scheduler.pending_participation_notification(event)
+        end
-          {:ok, activity_data, participant}
 
-        true ->
+      %Event{local: true} ->
-          {:ok, activity_data, participant}
+        do_approve(event, activity_data, participant, role, %{
-      end
+          "actor" => event.organizer_actor.url
-    else
+        })
-      {:ok, activity_data, participant}
+
+      _ ->
+        {:ok, activity_data, participant}
+    end
+  end
+
+  defp do_approve(event, activity_data, participant, role, additionnal) do
+    cond do
+      Mobilizon.Events.get_default_participant_role(event) === :participant &&
+          role == :participant ->
+        {:accept,
+         ActivityPub.accept(
+           :join,
+           participant,
+           true,
+           additionnal
+         )}
+
+      Mobilizon.Events.get_default_participant_role(event) === :not_approved &&
+          role == :not_approved ->
+        Scheduler.pending_participation_notification(event)
+        {:ok, activity_data, participant}
+
+      true ->
+        {:ok, activity_data, participant}
     end
   end
 

lib/federation/activity_pub/types/posts.ex

@@ -2,7 +2,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Posts do
   @moduledoc false
   alias Mobilizon.{Actors, Posts, Tombstone}
   alias Mobilizon.Actors.Actor
-  alias Mobilizon.Federation.ActivityPub.Audience
+  alias Mobilizon.Federation.ActivityPub.{Audience, Permission}
   alias Mobilizon.Federation.ActivityPub.Types.Entity
   alias Mobilizon.Federation.ActivityStream.Converter.Utils, as: ConverterUtils
   alias Mobilizon.Federation.ActivityStream.Convertible
@@ -47,7 +47,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Posts do
          post_as_data <-
            Convertible.model_to_as(%{post | attributed_to: group, author: creator}),
          audience <-
-           Audience.calculate_to_and_cc_from_mentions(post) do
+           Audience.get_audience(post) do
       update_data = make_update_data(post_as_data, Map.merge(audience, additional))
 
       {:ok, post, update_data}
@@ -91,6 +91,12 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Posts do
   def group_actor(%Post{attributed_to_id: attributed_to_id}),
     do: Actors.get_actor(attributed_to_id)
 
-  def role_needed_to_update(%Post{}), do: :moderator
+  def permissions(%Post{}) do
-  def role_needed_to_delete(%Post{}), do: :moderator
+    %Permission{
+      access: :member,
+      create: :moderator,
+      update: :moderator,
+      delete: :moderator
+    }
+  end
 end

lib/federation/activity_pub/types/resources.ex

@@ -2,6 +2,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Resources do
   @moduledoc false
   alias Mobilizon.{Actors, Resources}
   alias Mobilizon.Actors.Actor
+  alias Mobilizon.Federation.ActivityPub.Permission
   alias Mobilizon.Federation.ActivityPub.Types.Entity
   alias Mobilizon.Federation.ActivityStream.Convertible
   alias Mobilizon.Resources.Resource
@@ -170,6 +171,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Resources do
 
   def group_actor(%Resource{actor_id: actor_id}), do: Actors.get_actor(actor_id)
 
-  def role_needed_to_update(%Resource{}), do: :member
+  def permissions(%Resource{}) do
-  def role_needed_to_delete(%Resource{}), do: :member
+    %Permission{access: :member, create: :member, update: :member, delete: :member}
+  end
 end

lib/federation/activity_pub/types/todo_lists.ex

@@ -2,6 +2,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.TodoLists do
   @moduledoc false
   alias Mobilizon.{Actors, Todos}
   alias Mobilizon.Actors.Actor
+  alias Mobilizon.Federation.ActivityPub.Permission
   alias Mobilizon.Federation.ActivityPub.Types.Entity
   alias Mobilizon.Federation.ActivityStream
   alias Mobilizon.Federation.ActivityStream.Convertible
@@ -68,6 +69,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.TodoLists do
 
   def group_actor(%TodoList{actor_id: actor_id}), do: Actors.get_actor(actor_id)
 
-  def role_needed_to_update(%TodoList{}), do: :member
+  def permissions(%TodoList{}) do
-  def role_needed_to_delete(%TodoList{}), do: :member
+    %Permission{access: :member, create: :member, update: :member, delete: :member}
+  end
 end

lib/federation/activity_pub/types/todos.ex

@@ -2,6 +2,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Todos do
   @moduledoc false
   alias Mobilizon.{Actors, Todos}
   alias Mobilizon.Actors.Actor
+  alias Mobilizon.Federation.ActivityPub.Permission
   alias Mobilizon.Federation.ActivityPub.Types.Entity
   alias Mobilizon.Federation.ActivityStream.Convertible
   alias Mobilizon.Todos.{Todo, TodoList}
@@ -80,6 +81,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Todos do
     end
   end
 
-  def role_needed_to_update(%Todo{}), do: :member
+  def permissions(%Todo{}) do
-  def role_needed_to_delete(%Todo{}), do: :member
+    %Permission{access: :member, create: :member, update: :member, delete: :member}
+  end
 end

lib/federation/activity_pub/types/tombstones.ex

@@ -2,6 +2,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Tombstones do
   @moduledoc false
   alias Mobilizon.{Actors, Tombstone}
   alias Mobilizon.Actors.Actor
+  alias Mobilizon.Federation.ActivityPub.Permission
 
   def actor(%Tombstone{actor: %Actor{id: actor_id}}), do: Actors.get_actor(actor_id)
 
@@ -12,6 +13,7 @@ defmodule Mobilizon.Federation.ActivityPub.Types.Tombstones do
 
   def group_actor(_), do: nil
 
-  def role_needed_to_update(%Actor{}), do: nil
+  def permissions(_) do
-  def role_needed_to_delete(%Actor{}), do: nil
+    %Permission{access: nil, create: nil, update: nil, delete: nil}
+  end
 end

lib/federation/activity_pub/utils.ex

@@ -15,7 +15,6 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
   alias Mobilizon.Federation.ActivityPub
   alias Mobilizon.Federation.ActivityPub.{Activity, Federator, Relay}
   alias Mobilizon.Federation.ActivityPub.Actor, as: ActivityPubActor
-  alias Mobilizon.Federation.ActivityPub.Types.Ownable
   alias Mobilizon.Federation.ActivityStream.Converter
   alias Mobilizon.Federation.HTTPSignatures
   alias Mobilizon.Web.Endpoint
@@ -291,43 +290,6 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
   def origin_check_from_id?(id, %{"id" => other_id} = _params) when is_binary(other_id),
     do: origin_check_from_id?(id, other_id)
 
-  def activity_actor_is_group_member?(
-        %Actor{id: actor_id, url: actor_url},
-        object,
-        role \\ :member
-      ) do
-    case Ownable.group_actor(object) do
-      %Actor{type: :Group, id: group_id, url: group_url} ->
-        Logger.debug("Group object url is #{group_url}")
-
-        case role do
-          :moderator ->
-            Logger.debug(
-              "Checking if activity actor #{actor_url} is a moderator from group from #{object.url}"
-            )
-
-            Actors.is_moderator?(actor_id, group_id)
-
-          :administrator ->
-            Logger.debug(
-              "Checking if activity actor #{actor_url} is an administrator from group from #{object.url}"
-            )
-
-            Actors.is_administrator?(actor_id, group_id)
-
-          _ ->
-            Logger.debug(
-              "Checking if activity actor #{actor_url} is a member from group from #{object.url}"
-            )
-
-            Actors.is_member?(actor_id, group_id)
-        end
-
-      _ ->
-        false
-    end
-  end
-
   @doc """
   Return AS Link data from
 
@@ -514,6 +476,7 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
       "type" => "Update",
       "to" => object["to"],
       "cc" => object["cc"],
+      "attributedTo" => object["attributedTo"] || object["actor"],
       "actor" => object["actor"],
       "object" => object,
       "id" => object["id"] <> "/activity"
@@ -662,41 +625,6 @@ defmodule Mobilizon.Federation.ActivityPub.Utils do
     :ok
   end
 
-  def can_update_group_object?(%Actor{} = actor, object) do
-    can_manage_group_object?(:role_needed_to_update, actor, object)
-  end
-
-  def can_delete_group_object?(%Actor{} = actor, object) do
-    can_manage_group_object?(:role_needed_to_delete, actor, object)
-  end
-
-  @spec can_manage_group_object?(
-          :role_needed_to_update | :role_needed_to_delete,
-          Actor.t(),
-          any()
-        ) :: boolean()
-  defp can_manage_group_object?(action_function, %Actor{url: actor_url} = actor, object) do
-    if Ownable.group_actor(object) != nil do
-      case apply(Ownable, action_function, [object]) do
-        role when role in [:member, :moderator, :administrator] ->
-          activity_actor_is_group_member?(actor, object, role)
-
-        _ ->
-          case action_function do
-            :role_needed_to_update ->
-              Logger.warn("Actor #{actor_url} can't update #{object.url}")
-
-            :role_needed_to_delete ->
-              Logger.warn("Actor #{actor_url} can't delete #{object.url}")
-          end
-
-          false
-      end
-    else
-      true
-    end
-  end
-
   @spec label_in_collection?(any(), any()) :: boolean()
   defp label_in_collection?(url, coll) when is_binary(coll), do: url == coll
   defp label_in_collection?(url, coll) when is_list(coll), do: url in coll

lib/federation/activity_stream/converter/event.ex

@@ -14,6 +14,7 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Event do
   alias Mobilizon.Federation.ActivityStream.{Converter, Convertible}
   alias Mobilizon.Federation.ActivityStream.Converter.Address, as: AddressConverter
   alias Mobilizon.Federation.ActivityStream.Converter.Media, as: MediaConverter
+  alias Mobilizon.Web.Endpoint
 
   import Mobilizon.Federation.ActivityStream.Converter.Utils,
     only: [
@@ -36,6 +37,7 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Event do
 
   @online_address_name "Website"
   @banner_picture_name "Banner"
+  @ap_public "https://www.w3.org/ns/activitystreams#Public"
 
   @doc """
   Converts an AP object data to our internal data structure.
@@ -43,7 +45,7 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Event do
   @impl Converter
   @spec as_to_model_data(map) :: {:ok, map()} | {:error, any()}
   def as_to_model_data(object) do
-    with {%Actor{id: actor_id, domain: actor_domain}, attributed_to} <-
+    with {%Actor{id: actor_id}, attributed_to} <-
            maybe_fetch_actor_and_attributed_to_id(object),
          {:address, address_id} <-
            {:address, get_address(object["location"])},
@@ -65,7 +67,7 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Event do
         category: object["category"],
         visibility: visibility,
         join_options: Map.get(object, "joinMode", "free"),
-        local: is_nil(actor_domain),
+        local: is_local(object["id"]),
         options: options,
         status: object |> Map.get("ical:status", "CONFIRMED") |> String.downcase(),
         online_address: object |> Map.get("attachment", []) |> get_online_address(),
@@ -91,15 +93,15 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Event do
   @impl Converter
   @spec model_to_as(EventModel.t()) :: map
   def model_to_as(%EventModel{} = event) do
-    to =
+    {to, cc} =
       if event.visibility == :public,
-        do: ["https://www.w3.org/ns/activitystreams#Public"],
+        do: {[@ap_public], []},
-        else: [attributed_to_or_default(event).followers_url]
+        else: {[attributed_to_or_default(event).followers_url], [@ap_public]}
 
     %{
       "type" => "Event",
       "to" => to,
-      "cc" => [],
+      "cc" => cc,
       "attributedTo" => attributed_to_or_default(event).url,
       "name" => event.title,
       "actor" =>
@@ -274,4 +276,10 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Event do
       &(&1 ++ medias)
     )
   end
+
+  defp is_local(url) do
+    %URI{host: url_domain} = URI.parse(url)
+    %URI{host: local_domain} = URI.parse(Endpoint.url())
+    url_domain == local_domain
+  end
 end

lib/federation/activity_stream/converter/post.ex

@@ -41,7 +41,7 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Post do
           }
         } = post
       ) do
-    audience = Audience.calculate_to_and_cc_from_mentions(post)
+    audience = Audience.get_audience(post)
 
     %{
       "type" => "Article",
@@ -65,10 +65,11 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Post do
   @impl Converter
   @spec as_to_model_data(map) :: {:ok, map} | {:error, any()}
   def as_to_model_data(
-        %{"type" => "Article", "actor" => creator, "attributedTo" => group} = object
+        %{"type" => "Article", "actor" => creator, "attributedTo" => group_uri} = object
       ) do
-    with {:ok, %Actor{id: attributed_to_id}} <- get_actor(group),
+    with {:ok, %Actor{id: attributed_to_id} = group} <- get_actor(group_uri),
          {:ok, %Actor{id: author_id}} <- get_actor(creator),
+         {:visibility, visibility} <- {:visibility, get_visibility(object, group)},
          [description: description, picture_id: picture_id, medias: medias] <-
            process_pictures(object, attributed_to_id) do
       %{
@@ -81,6 +82,7 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Post do
         publish_at: object["published"],
         picture_id: picture_id,
         medias: medias,
+        visibility: visibility,
         draft: object["draft"] == true
       }
     else
@@ -128,4 +130,17 @@ defmodule Mobilizon.Federation.ActivityStream.Converter.Post do
       &(&1 ++ medias)
     )
   end
+
+  @ap_public "https://www.w3.org/ns/activitystreams#Public"
+
+  defp get_visibility(%{"to" => to}, %Actor{
+         followers_url: followers_url,
+         members_url: members_url
+       }) do
+    cond do
+      @ap_public in to -> :public
+      followers_url in to -> :unlisted
+      members_url in to -> :private
+    end
+  end
 end

lib/graphql/api/events.ex

@@ -22,7 +22,7 @@ defmodule Mobilizon.GraphQL.API.Events do
              process_picture(picture, organizer_actor)
            end) do
       # For now we don't federate drafts but it will be needed if we want to edit them as groups
-      ActivityPub.create(:event, args, args.draft == false)
+      ActivityPub.create(:event, args, should_federate(args))
     end
   end
 
@@ -37,7 +37,7 @@ defmodule Mobilizon.GraphQL.API.Events do
            Map.update(args, :picture, nil, fn picture ->
              process_picture(picture, organizer_actor)
            end) do
-      ActivityPub.update(event, args, Map.get(args, :draft, false) == false)
+      ActivityPub.update(event, args, should_federate(args))
     end
   end
 
@@ -74,4 +74,9 @@ defmodule Mobilizon.GraphQL.API.Events do
   end
 
   defp extract_pictures_from_event_body(args, _), do: args
+
+  defp should_federate(%{attributed_to_id: attributed_to_id}) when not is_nil(attributed_to_id),
+    do: true
+
+  defp should_federate(args), do: Map.get(args, :draft, false) == false
 end

lib/graphql/resolvers/event.ex

@@ -12,6 +12,7 @@ defmodule Mobilizon.GraphQL.Resolvers.Event do
   alias Mobilizon.GraphQL.API
 
   alias Mobilizon.Federation.ActivityPub.Activity
+  alias Mobilizon.Federation.ActivityPub.Permission
   import Mobilizon.Users.Guards, only: [is_moderator: 1]
   import Mobilizon.Web.Gettext
 
@@ -75,13 +76,28 @@ defmodule Mobilizon.GraphQL.Resolvers.Event do
   defp find_private_event(
          _parent,
          %{uuid: uuid},
-         %{context: %{current_user: %User{id: user_id}}} = _resolution
+         %{context: %{current_user: %User{} = user}} = _resolution
        ) do
-    case {:has_event, Events.get_own_event_by_uuid_with_preload(uuid, user_id)} do
+    %Actor{} = profile = Users.get_actor_for_user(user)
-      {:has_event, %Event{} = event} ->
-        {:ok, event}
 
-      {:has_event, _} ->
+    case Events.get_event_by_uuid_with_preload(uuid) do
+      # Event attributed to group
+      %Event{attributed_to: %Actor{}} = event ->
+        if Permission.can_access_group_object?(profile, event) do
+          {:ok, event}
+        else
+          {:error, :event_not_found}
+        end
+
+      # Own event
+      %Event{organizer_actor: %Actor{id: actor_id}} = event ->
+        if actor_id == profile.id do
+          {:ok, event}
+        else
+          {:error, :event_not_found}
+        end
+
+      _ ->
         {:error, :event_not_found}
     end
   end
@@ -239,11 +255,19 @@ defmodule Mobilizon.GraphQL.Resolvers.Event do
     # See https://github.com/absinthe-graphql/absinthe/issues/490
     with {:is_owned, %Actor{} = organizer_actor} <- User.owns_actor(user, organizer_actor_id),
          args <- Map.put(args, :options, args[:options] || %{}),
+         {:group_check, true} <- {:group_check, is_organizer_group_member?(args)},
          args_with_organizer <- Map.put(args, :organizer_actor, organizer_actor),
          {:ok, %Activity{data: %{"object" => %{"type" => "Event"}}}, %Event{} = event} <-
            API.Events.create_event(args_with_organizer) do
       {:ok, event}
     else
+      {:group_check, false} ->
+        {:error,
+         dgettext(
+           "errors",
+           "Organizer profile doesn't have permission to create an event on behalf of this group"
+         )}
+
       {:is_owned, nil} ->
         {:error, dgettext("errors", "Organizer profile is not owned by the user")}
 
@@ -270,16 +294,21 @@ defmodule Mobilizon.GraphQL.Resolvers.Event do
     # See https://github.com/absinthe-graphql/absinthe/issues/490
     with args <- Map.put(args, :options, args[:options] || %{}),
          {:ok, %Event{} = event} <- Events.get_event_with_preload(event_id),
-         {:old_actor, {:is_owned, %Actor{}}} <-
+         %Actor{} = actor <- Users.get_actor_for_user(user),
-           {:old_actor, User.owns_actor(user, event.organizer_actor_id)},
+         {:ok, args} <- verify_profile_change(args, event, user, actor),
-         new_organizer_actor_id <- args |> Map.get(:organizer_actor_id, event.organizer_actor_id),
+         {:event_can_be_managed, true} <-
-         {:new_actor, {:is_owned, %Actor{} = organizer_actor}} <-
+           {:event_can_be_managed, can_event_be_updated_by?(event, actor)},
-           {:new_actor, User.owns_actor(user, new_organizer_actor_id)},
-         args <- Map.put(args, :organizer_actor, organizer_actor),
          {:ok, %Activity{data: %{"object" => %{"type" => "Event"}}}, %Event{} = event} <-
            API.Events.update_event(args, event) do
       {:ok, event}
     else
+      {:event_can_be_managed, false} ->
+        {:error,
+         dgettext(
+           "errors",
+           "This profile doesn't have permission to update an event on behalf of this group"
+         )}
+
       {:error, :event_not_found} ->
         {:error, dgettext("errors", "Event not found")}
 
@@ -309,7 +338,8 @@ defmodule Mobilizon.GraphQL.Resolvers.Event do
     with {:ok, %Event{local: is_local} = event} <- Events.get_event_with_preload(event_id),
          %Actor{id: actor_id} = actor <- Users.get_actor_for_user(user) do
       cond do
-        {:event_can_be_managed, true} == Event.can_be_managed_by(event, actor_id) ->
+        {:event_can_be_managed, true} ==
+            {:event_can_be_managed, can_event_be_deleted_by?(event, actor)} ->
           do_delete_event(event, actor)
 
         role in [:moderator, :administrator] ->
@@ -339,4 +369,74 @@ defmodule Mobilizon.GraphQL.Resolvers.Event do
       {:ok, %{id: event.id}}
     end
   end
+
+  defp is_organizer_group_member?(%{
+         attributed_to_id: attributed_to_id,
+         organizer_actor_id: organizer_actor_id
+       })
+       when not is_nil(attributed_to_id) do
+    Actors.is_member?(organizer_actor_id, attributed_to_id) &&
+      Permission.can_create_group_object?(organizer_actor_id, attributed_to_id, %Event{})
+  end
+
+  defp is_organizer_group_member?(_), do: true
+
+  defp verify_profile_change(
+         args,
+         %Event{attributed_to: %Actor{}},
+         %User{} = _user,
+         %Actor{} = current_profile
+       ) do
+    # The organizer_actor has to be the current profile, because otherwise we're left with a possible remote organizer
+    args =
+      args
+      |> Map.put(:organizer_actor, current_profile)
+      |> Map.put(:organizer_actor_id, current_profile.id)
+
+    {:ok, args}
+  end
+
+  defp verify_profile_change(
+         args,
+         %Event{organizer_actor: %Actor{id: organizer_actor_id}},
+         %User{} = user,
+         %Actor{} = _actor
+       ) do
+    with {:old_actor, {:is_owned, %Actor{}}} <-
+           {:old_actor, User.owns_actor(user, organizer_actor_id)},
+         new_organizer_actor_id <- args |> Map.get(:organizer_actor_id, organizer_actor_id),
+         {:new_actor, {:is_owned, %Actor{} = organizer_actor}} <-
+           {:new_actor, User.owns_actor(user, new_organizer_actor_id)},
+         args <-
+           args
+           |> Map.put(:organizer_actor, organizer_actor)
+           |> Map.put(:organizer_actor_id, organizer_actor.id) do
+      {:ok, args}
+    end
+  end
+
+  defp can_event_be_updated_by?(
+         %Event{attributed_to: %Actor{type: :Group}} = event,
+         %Actor{} = actor_member
+       ) do
+    Permission.can_update_group_object?(actor_member, event)
+  end
+
+  defp can_event_be_updated_by?(
+         %Event{} = event,
+         %Actor{id: actor_member_id}
+       ) do
+    Event.can_be_managed_by?(event, actor_member_id)
+  end
+
+  defp can_event_be_deleted_by?(
+         %Event{attributed_to: %Actor{type: :Group}} = event,
+         %Actor{} = actor_member
+       ) do
+    Permission.can_delete_group_object?(actor_member, event)
+  end
+
+  defp can_event_be_deleted_by?(%Event{} = event, %Actor{id: actor_member_id}) do
+    Event.can_be_managed_by?(event, actor_member_id)
+  end
 end

lib/graphql/resolvers/post.ex

@@ -7,7 +7,7 @@ defmodule Mobilizon.GraphQL.Resolvers.Post do
   alias Mobilizon.{Actors, Posts, Users}
   alias Mobilizon.Actors.Actor
   alias Mobilizon.Federation.ActivityPub
-  alias Mobilizon.Federation.ActivityPub.Utils
+  alias Mobilizon.Federation.ActivityPub.{Permission, Utils}
   alias Mobilizon.Posts.Post
   alias Mobilizon.Storage.Page
   alias Mobilizon.Users.User
@@ -69,11 +69,11 @@ defmodule Mobilizon.GraphQL.Resolvers.Post do
           }
         } = _resolution
       ) do
-    with {:current_actor, %Actor{id: actor_id}} <-
+    with {:current_actor, %Actor{} = current_profile} <-
            {:current_actor, Users.get_actor_for_user(user)},
-         {:post, %Post{attributed_to: %Actor{id: group_id}} = post} <-
+         {:post, %Post{attributed_to: %Actor{}} = post} <-
            {:post, Posts.get_post_by_slug_with_preloads(slug)},
-         {:member, true} <- {:member, Actors.is_member?(actor_id, group_id)} do
+         {:member, true} <- {:member, Permission.can_access_group_object?(current_profile, post)} do
       {:ok, post}
     else
       {:member, false} -> get_post(parent, %{slug: slug}, nil)

lib/mobilizon/actors/actors.ex

@@ -794,11 +794,18 @@ defmodule Mobilizon.Actors do
 
   @spec get_single_group_member_actor(integer() | String.t()) :: Actor.t() | nil
   def get_single_group_member_actor(group_id) do
+    do_get_single_group_member_actor(group_id, [:member, :moderator, :administrator, :creator])
+  end
+
+  @spec get_single_group_moderator_actor(integer() | String.t()) :: Actor.t() | nil
+  def get_single_group_moderator_actor(group_id) do
+    do_get_single_group_member_actor(group_id, [:moderator, :administrator, :creator])
+  end
+
+  @spec do_get_single_group_member_actor(integer() | String.t(), list(atom())) :: Actor.t() | nil
+  defp do_get_single_group_member_actor(group_id, roles) do
     Member
-    |> where(
+    |> where([m], m.parent_id == ^group_id and m.role in ^roles)
-      [m],
-      m.parent_id == ^group_id and m.role in [^:member, ^:moderator, ^:administrator, ^:creator]
-    )
     |> join(:inner, [m], a in Actor, on: m.actor_id == a.id)
     |> where([_m, a], is_nil(a.domain))
     |> limit(1)

lib/mobilizon/events/event.ex

@@ -188,13 +188,11 @@ defmodule Mobilizon.Events.Event do
   @doc """
   Checks whether an event can be managed.
   """
-  @spec can_be_managed_by(t, integer | String.t()) :: boolean
+  @spec can_be_managed_by?(t, integer | String.t()) :: boolean
-  def can_be_managed_by(%__MODULE__{organizer_actor_id: organizer_actor_id}, actor_id)
+  def can_be_managed_by?(%__MODULE__{organizer_actor_id: organizer_actor_id}, actor_id),
-      when organizer_actor_id == actor_id do
+    do: organizer_actor_id == actor_id
-    {:event_can_be_managed, true}
-  end
 
-  def can_be_managed_by(_event, _actor), do: {:event_can_be_managed, false}
+  def can_be_managed_by?(_event, _actor), do: false
 
   @spec put_tags(Changeset.t(), map) :: Changeset.t()
   defp put_tags(%Changeset{} = changeset, %{tags: tags}) do

lib/mobilizon/events/events.ex

@@ -88,6 +88,8 @@ defmodule Mobilizon.Events do
     :media
   ]
 
+  @participant_preloads [:event, :actor]
+
   @doc """
   Gets a single event.
   """
@@ -153,6 +155,7 @@ defmodule Mobilizon.Events do
   def get_event_by_url!(url) do
     url
     |> event_by_url_query()
+    |> preload_for_event()
     |> Repo.one!()
   end
 
@@ -306,8 +309,9 @@ defmodule Mobilizon.Events do
   """
   @spec update_event(Event.t(), map) :: {:ok, Event.t()} | {:error, Changeset.t()}
   def update_event(%Event{draft: old_draft} = old_event, attrs) do
-    with %Changeset{changes: changes} = changeset <-
+    with %Event{} = old_event <- Repo.preload(old_event, @event_preloads),
-           Event.update_changeset(Repo.preload(old_event, [:tags, :media]), attrs),
+         %Changeset{changes: changes} = changeset <-
+           Event.update_changeset(old_event, attrs),
          {:ok, %{update: %Event{} = new_event}} <-
            Multi.new()
            |> Multi.update(:update, changeset)
@@ -328,7 +332,8 @@ defmodule Mobilizon.Events do
                err -> err
              end
            end)
-           |> Repo.transaction() do
+           |> Repo.transaction(),
+         %Event{} = new_event <- Repo.preload(new_event, @event_preloads, force: true) do
       Cachex.del(:ics, "event_#{new_event.uuid}")
 
       Email.Event.calculate_event_diff_and_send_notifications(
@@ -340,7 +345,7 @@ defmodule Mobilizon.Events do
       unless new_event.draft,
         do: Workers.BuildSearch.enqueue(:update_search_event, %{"event_id" => new_event.id})
 
-      {:ok, Repo.preload(new_event, @event_preloads)}
+      {:ok, new_event}
     end
   end
 
@@ -530,6 +535,7 @@ defmodule Mobilizon.Events do
     |> events_for_ends_on(args)
     |> events_for_tags(args)
     |> events_for_location(args)
+    |> filter_draft()
     |> filter_local_or_from_followed_instances_events()
     |> filter_public_visibility()
     |> event_order_begins_on_asc()
@@ -726,7 +732,7 @@ defmodule Mobilizon.Events do
   def get_participant(participant_id) do
     Participant
     |> where([p], p.id == ^participant_id)
-    |> preload([p], [:event, :actor])
+    |> preload([p], ^@participant_preloads)
     |> Repo.one()
   end
 
@@ -742,6 +748,7 @@ defmodule Mobilizon.Events do
     case Participant
          |> where([p], event_id: ^event_id, actor_id: ^actor_id)
          |> where([p], fragment("? ->>'email' = ?", p.metadata, ^email))
+         |> preload([p], ^@participant_preloads)
          |> Repo.one() do
       %Participant{} = participant ->
         {:ok, participant}
@@ -756,6 +763,7 @@ defmodule Mobilizon.Events do
     case Participant
          |> where([p], event_id: ^event_id, actor_id: ^actor_id)
          |> where([p], fragment("? ->>'cancellation_token' = ?", p.metadata, ^cancellation_token))
+         |> preload([p], ^@participant_preloads)
          |> Repo.one() do
       %Participant{} = participant ->
         {:ok, participant}
@@ -766,7 +774,9 @@ defmodule Mobilizon.Events do
   end
 
   def get_participant(event_id, actor_id, %{}) do
-    case Repo.get_by(Participant, event_id: event_id, actor_id: actor_id) do
+    case Participant
+         |> Repo.get_by(event_id: event_id, actor_id: actor_id)
+         |> Repo.preload(@participant_preloads) do
       %Participant{} = participant ->
         {:ok, participant}
 
@@ -779,7 +789,7 @@ defmodule Mobilizon.Events do
   def get_participant_by_confirmation_token(confirmation_token) do
     Participant
     |> where([p], fragment("? ->>'confirmation_token' = ?", p.metadata, ^confirmation_token))
-    |> preload([p], [:actor, :event])
+    |> preload([p], ^@participant_preloads)
     |> Repo.one()
   end
 

mix.exs

@@ -163,6 +163,7 @@ defmodule Mobilizon.Mixfile do
       {:web_push_encryption,
        git: "https://github.com/tcitworld/elixir-web-push-encryption", branch: "otp-24"},
       {:eblurhash, "~> 1.2"},
+      {:struct_access, "~> 1.1.2"},
       # Dev and test dependencies
       {:phoenix_live_reload, "~> 1.2", only: [:dev, :e2e]},
       {:ex_machina, "~> 2.3", only: [:dev, :test]},

mix.lock

@@ -121,6 +121,7 @@
   "slugger": {:hex, :slugger, "0.3.0", "efc667ab99eee19a48913ccf3d038b1fb9f165fa4fbf093be898b8099e61b6ed", [:mix], [], "hexpm", "20d0ded0e712605d1eae6c5b4889581c3460d92623a930ddda91e0e609b5afba"},
   "sobelow": {:hex, :sobelow, "0.11.1", "23438964486f8112b41e743bbfd402da3e5b296fdc9eacab29914b79c48916dd", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "9897363a7eff96f4809304a90aad819e2ad5e5d24db547af502885146746a53c"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
+  "struct_access": {:hex, :struct_access, "1.1.2", "a42e6ceedd9b9ea090ee94a6da089d56e16f374dbbc010c3eebdf8be17df286f", [:mix], [], "hexpm", "e4c411dcc0226081b95709909551fc92b8feb1a3476108348ea7e3f6c12e586a"},
   "sweet_xml": {:hex, :sweet_xml, "0.6.6", "fc3e91ec5dd7c787b6195757fbcf0abc670cee1e4172687b45183032221b66b8", [:mix], [], "hexpm", "2e1ec458f892ffa81f9f8386e3f35a1af6db7a7a37748a64478f13163a1f3573"},
   "telemetry": {:hex, :telemetry, "0.4.3", "a06428a514bdbc63293cd9a6263aad00ddeb66f608163bdec7c8995784080818", [:rebar3], [], "hexpm", "eb72b8365ffda5bed68a620d1da88525e326cb82a75ee61354fc24b844768041"},
   "tesla": {:hex, :tesla, "1.4.1", "ff855f1cac121e0d16281b49e8f066c4a0d89965f98864515713878cca849ac8", [:mix], [{:castore, "~> 0.1", [hex: :castore, repo: "hexpm", optional: true]}, {:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: true]}, {:finch, "~> 0.3", [hex: :finch, repo: "hexpm", optional: true]}, {:fuse, "~> 2.4", [hex: :fuse, repo: "hexpm", optional: true]}, {:gun, "~> 1.3", [hex: :gun, repo: "hexpm", optional: true]}, {:hackney, "~> 1.6", [hex: :hackney, repo: "hexpm", optional: true]}, {:ibrowse, "~> 4.4.0", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.0", [hex: :mint, repo: "hexpm", optional: true]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm", "95f5de35922c8c4b3945bee7406f66eb680b0955232f78f5fb7e853aa1ce201a"},

priv/repo/migrations/20210730143924_put_unique_index_on_participants_urls.exs

@@ -0,0 +1,11 @@
+defmodule Mobilizon.Storage.Repo.Migrations.PutUniqueIndexOnParticipantsUrls do
+  use Ecto.Migration
+
+  def up do
+    create_if_not_exists(unique_index("participants", [:url]))
+  end
+
+  def down do
+    drop_if_exists(index("participants", [:url]))
+  end
+end

test/federation/activity_pub/audience_test.exs

@@ -0,0 +1,319 @@
+defmodule Mobilizon.Federation.ActivityPub.AudienceTest do
+  use Mobilizon.DataCase
+
+  import Mobilizon.Factory
+
+  alias Mobilizon.Actors.{Actor, Member}
+  alias Mobilizon.Mention
+  alias Mobilizon.Discussions.{Comment, Discussion}
+  alias Mobilizon.Events.{Event, Participant}
+  alias Mobilizon.Federation.ActivityPub.Audience
+  alias Mobilizon.Posts.Post
+  alias Mobilizon.Storage.Repo
+
+  @ap_public "https://www.w3.org/ns/activitystreams#Public"
+
+  describe "get audience for an event created from a profile" do
+    test "when the event is public" do
+      %Event{} = event = insert(:event)
+      event = Repo.preload(event, [:comments])
+
+      assert %{"cc" => [event.organizer_actor.followers_url], "to" => [@ap_public]} ==
+               Audience.get_audience(event)
+    end
+
+    test "when the event is unlisted" do
+      %Event{} = event = insert(:event, visibility: :unlisted)
+      event = Repo.preload(event, [:comments])
+
+      assert %{"cc" => [@ap_public], "to" => [event.organizer_actor.followers_url]} ==
+               Audience.get_audience(event)
+    end
+
+    test "when the event is unlisted and mentions some actors" do
+      %Actor{id: mentionned_actor_id, url: mentionned_actor_url} =
+        insert(:actor, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Event{} = event = insert(:event, visibility: :unlisted)
+      event = Repo.preload(event, [:comments])
+      mentions = [%Mention{actor_id: mentionned_actor_id}]
+      event = %Event{event | mentions: mentions}
+
+      assert %{
+               "cc" => [@ap_public],
+               "to" => [event.organizer_actor.followers_url, mentionned_actor_url]
+             } ==
+               Audience.get_audience(event)
+    end
+
+    test "with interactions" do
+      %Actor{} = interactor = insert(:actor)
+
+      %Event{} = event = insert(:event)
+
+      insert(:share, owner_actor: event.organizer_actor, actor: interactor, uri: event.url)
+
+      event = Repo.preload(event, [:comments])
+
+      assert %{
+               "cc" => [event.organizer_actor.followers_url, interactor.url],
+               "to" => [@ap_public]
+             } ==
+               Audience.get_audience(event)
+    end
+  end
+
+  describe "get audience for an event created from a group member" do
+    test "when the event is public" do
+      %Actor{} = actor = insert(:actor)
+
+      %Actor{
+        followers_url: followers_url,
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Event{} = event = insert(:event, attributed_to: group, organizer_actor: actor)
+      event = Repo.preload(event, [:comments])
+
+      assert %{
+               "cc" => [members_url, followers_url],
+               "to" => [@ap_public]
+             } ==
+               Audience.get_audience(event)
+    end
+
+    test "when the event is unlisted" do
+      %Actor{} = actor = insert(:actor)
+
+      %Actor{
+        followers_url: followers_url,
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Event{} =
+        event =
+        insert(:event, visibility: :unlisted, attributed_to: group, organizer_actor: actor)
+
+      event = Repo.preload(event, [:comments])
+
+      assert %{
+               "cc" => [@ap_public],
+               "to" => [members_url, followers_url]
+             } ==
+               Audience.get_audience(event)
+    end
+
+    test "when the event is unlisted and mentions some actors" do
+      %Actor{id: mentionned_actor_id, url: mentionned_actor_url} =
+        insert(:actor, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Actor{} = actor = insert(:actor)
+
+      %Actor{
+        followers_url: followers_url,
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@a_group")
+
+      %Event{} =
+        event =
+        insert(:event, visibility: :unlisted, attributed_to: group, organizer_actor: actor)
+
+      event = Repo.preload(event, [:comments])
+      mentions = [%Mention{actor_id: mentionned_actor_id}]
+      event = %Event{event | mentions: mentions}
+
+      assert %{
+               "cc" => [@ap_public],
+               "to" => [members_url, followers_url, mentionned_actor_url]
+             } ==
+               Audience.get_audience(event)
+    end
+  end
+
+  describe "get audience for a post" do
+    test "when it's public" do
+      %Actor{
+        followers_url: followers_url,
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Post{} = post = insert(:post, attributed_to: group)
+
+      assert %{"to" => [@ap_public], "cc" => [members_url, followers_url]} ==
+               Audience.get_audience(post)
+    end
+
+    test "when it's unlisted" do
+      %Actor{
+        followers_url: followers_url,
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Post{} = post = insert(:post, attributed_to: group, visibility: :unlisted)
+
+      assert %{"to" => [members_url, followers_url], "cc" => [@ap_public]} ==
+               Audience.get_audience(post)
+    end
+
+    test "when it's private" do
+      %Actor{
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Post{} = post = insert(:post, attributed_to: group, visibility: :private)
+
+      assert %{"to" => [members_url], "cc" => []} ==
+               Audience.get_audience(post)
+    end
+
+    test "when it's still a draft" do
+      %Actor{
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Post{} = post = insert(:post, attributed_to: group, draft: true)
+
+      assert %{"to" => [members_url], "cc" => []} ==
+               Audience.get_audience(post)
+    end
+  end
+
+  describe "get audience for a discussion" do
+    test "basic" do
+      %Actor{
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Discussion{} = discussion = insert(:discussion, actor: group)
+
+      assert %{"to" => [members_url], "cc" => []} ==
+               Audience.get_audience(discussion)
+    end
+  end
+
+  describe "get audience for a comment" do
+    test "basic" do
+      %Actor{id: mentionned_actor_id, url: mentionned_actor_url} =
+        insert(:actor, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Comment{} = comment = insert(:comment)
+      mentions = [%Mention{actor_id: mentionned_actor_id}]
+      comment = %Comment{comment | mentions: mentions}
+
+      assert %{
+               "cc" => [comment.actor.followers_url],
+               "to" => [@ap_public, mentionned_actor_url, comment.event.organizer_actor.url]
+             } ==
+               Audience.get_audience(comment)
+    end
+
+    test "in reply to other comments" do
+      %Actor{id: mentionned_actor_id, url: mentionned_actor_url} =
+        insert(:actor, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Comment{} = original_comment = insert(:comment)
+
+      %Comment{} =
+        reply_comment =
+        insert(:comment, in_reply_to_comment: original_comment, origin_comment: original_comment)
+
+      %Comment{} =
+        comment =
+        insert(:comment, in_reply_to_comment: reply_comment, origin_comment: original_comment)
+
+      mentions = [%Mention{actor_id: mentionned_actor_id}]
+      comment = %Comment{comment | mentions: mentions}
+
+      assert %{
+               "cc" => [comment.actor.followers_url, original_comment.actor.url],
+               "to" => [
+                 @ap_public,
+                 mentionned_actor_url,
+                 reply_comment.actor.url,
+                 comment.event.organizer_actor.url
+               ]
+             } ==
+               Audience.get_audience(comment)
+    end
+
+    test "part of a discussion" do
+      %Actor{
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Discussion{} = discussion = insert(:discussion, actor: group)
+      %Comment{} = comment = insert(:comment, discussion: discussion)
+
+      assert %{"to" => [members_url], "cc" => []} ==
+               Audience.get_audience(comment)
+    end
+  end
+
+  describe "participant" do
+    test "basic" do
+      %Event{} = event = insert(:event)
+      %Participant{} = participant2 = insert(:participant, event: event)
+      %Participant{} = participant = insert(:participant, event: event)
+
+      assert %{
+               "to" => [participant.actor.url, participant.event.organizer_actor.url],
+               "cc" => [participant2.actor.url]
+             } == Audience.get_audience(participant)
+    end
+
+    test "to a group event" do
+      %Actor{} =
+        group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      %Event{} = event = insert(:event, attributed_to: group)
+      %Participant{} = participant2 = insert(:participant, event: event)
+      %Participant{} = participant = insert(:participant, event: event)
+
+      assert %{
+               "to" => [participant.actor.url, participant.event.attributed_to.url],
+               "cc" => [group.followers_url, group.members_url, participant2.actor.url]
+             } == Audience.get_audience(participant)
+    end
+  end
+
+  describe "member" do
+    test "basic" do
+      %Member{} = member = insert(:member)
+
+      assert %{"to" => [member.parent.url, member.parent.members_url], "cc" => []} ==
+               Audience.get_audience(member)
+    end
+  end
+
+  describe "actor" do
+    test "basic" do
+      %Actor{followers_url: followers_url} = actor = insert(:actor)
+
+      assert %{"to" => [@ap_public], "cc" => [followers_url]} ==
+               Audience.get_audience(actor)
+    end
+
+    test "group" do
+      %Actor{followers_url: followers_url, members_url: members_url, type: :Group} =
+        group = insert(:group)
+
+      assert %{"to" => [@ap_public], "cc" => [members_url, followers_url]} ==
+               Audience.get_audience(group)
+    end
+
+    test "with interactions" do
+      %Actor{followers_url: followers_url, members_url: members_url, type: :Group} =
+        group = insert(:group)
+
+      %Actor{} = interactor = insert(:actor)
+
+      insert(:share, owner_actor: group, actor: interactor)
+
+      assert %{
+               "to" => [@ap_public],
+               "cc" => [members_url, followers_url, interactor.url]
+             } ==
+               Audience.get_audience(group)
+    end
+  end
+end

test/federation/activity_pub/transmogrifier/join_test.exs

@@ -64,6 +64,46 @@ defmodule Mobilizon.Federation.ActivityPub.Transmogrifier.JoinTest do
       # We don't accept already accepted Accept activities
       :error = Transmogrifier.handle_incoming(accept_data)
     end
+
+    test "it accepts Accept activities with an inline Join from same origin" do
+      %Actor{} = organizer = insert(:actor)
+
+      %Actor{url: participant_actor_url} =
+        insert(:actor, domain: "somewhere.else", url: "https://somewhere.else/@participant")
+
+      %Actor{} =
+        group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@group")
+
+      insert(:member, actor: organizer, parent: group, role: :moderator)
+
+      %Actor{} =
+        actor_member_2 =
+        insert(:actor, domain: "somewhere.else", url: "https://somewhere.else/@member")
+
+      insert(:member, actor: actor_member_2, parent: group, role: :moderator)
+
+      %Event{url: event_url} =
+        insert(:event, organizer_actor: organizer, join_options: :restricted, attributed_to: group)
+
+      join_data =
+        File.read!("test/fixtures/mobilizon-join-activity.json")
+        |> Jason.decode!()
+        |> Map.put("actor", participant_actor_url)
+        |> Map.put("object", event_url)
+        |> Map.put("participationMessage", @join_message)
+        |> Map.put("id", "https://somewhere.else/@participant/join/event/1")
+
+      accept_data =
+        File.read!("test/fixtures/mastodon-accept-activity.json")
+        |> Jason.decode!()
+        |> Map.put("actor", actor_member_2.url)
+        |> Map.put("object", join_data)
+
+      {:ok, accept_activity, _} = Transmogrifier.handle_incoming(accept_data)
+      assert accept_activity.data["object"]["id"] == join_data["id"]
+      assert accept_activity.data["object"]["id"] =~ "/join/"
+      assert accept_activity.data["id"] =~ "/accept/join/"
+    end
   end
 
   describe "handle incoming reject join activities" do

test/federation/activity_pub/types/events_test.exs

@@ -0,0 +1,440 @@
+defmodule Mobilizon.Federation.ActivityPub.Types.EventsTest do
+  use Mobilizon.DataCase
+
+  import Mobilizon.Factory
+
+  alias Mobilizon.Actors.Actor
+  alias Mobilizon.Events
+  alias Mobilizon.Events.{Event, Participant}
+  alias Mobilizon.Federation.ActivityPub.Activity
+  alias Mobilizon.Federation.ActivityPub.Types.Events
+
+  @ap_public "https://www.w3.org/ns/activitystreams#Public"
+
+  describe "test event creation" do
+    @event_begins_on "2021-07-28T15:04:22Z"
+    @event_title "hey"
+    @event_data %{title: @event_title, begins_on: @event_begins_on}
+
+    test "from a simple profile" do
+      %Actor{id: organizer_actor_id, url: actor_url, followers_url: followers_url} =
+        insert(:actor)
+
+      assert {:ok, %Event{}, data} =
+               Events.create(
+                 Map.merge(@event_data, %{organizer_actor_id: organizer_actor_id}),
+                 %{}
+               )
+
+      assert match?(
+               %{
+                 "actor" => ^actor_url,
+                 "attributedTo" => ^actor_url,
+                 "cc" => [^followers_url],
+                 "object" => %{
+                   "actor" => ^actor_url,
+                   "anonymousParticipationEnabled" => false,
+                   "attachment" => [],
+                   "attributedTo" => ^actor_url,
+                   "category" => nil,
+                   "cc" => [],
+                   "commentsEnabled" => false,
+                   "content" => nil,
+                   "draft" => false,
+                   "endTime" => nil,
+                   "ical:status" => "CONFIRMED",
+                   "joinMode" => "free",
+                   "maximumAttendeeCapacity" => nil,
+                   "mediaType" => "text/html",
+                   "name" => @event_title,
+                   "repliesModerationOption" => nil,
+                   "startTime" => @event_begins_on,
+                   "tag" => [],
+                   "to" => [@ap_public],
+                   "type" => "Event"
+                 },
+                 "to" => [@ap_public],
+                 "type" => "Create"
+               },
+               data
+             )
+    end
+
+    test "an unlisted event" do
+      %Actor{id: organizer_actor_id, url: actor_url, followers_url: followers_url} =
+        insert(:actor)
+
+      assert {:ok, %Event{}, data} =
+               Events.create(
+                 Map.merge(@event_data, %{
+                   organizer_actor_id: organizer_actor_id,
+                   visibility: :unlisted
+                 }),
+                 %{}
+               )
+
+      assert match?(
+               %{
+                 "actor" => ^actor_url,
+                 "attributedTo" => ^actor_url,
+                 "cc" => [@ap_public],
+                 "object" => %{
+                   "actor" => ^actor_url,
+                   "anonymousParticipationEnabled" => false,
+                   "attachment" => [],
+                   "attributedTo" => ^actor_url,
+                   "category" => nil,
+                   "cc" => [@ap_public],
+                   "commentsEnabled" => false,
+                   "content" => nil,
+                   "draft" => false,
+                   "endTime" => nil,
+                   "ical:status" => "CONFIRMED",
+                   "joinMode" => "free",
+                   "maximumAttendeeCapacity" => nil,
+                   "mediaType" => "text/html",
+                   "name" => @event_title,
+                   "repliesModerationOption" => nil,
+                   "startTime" => @event_begins_on,
+                   "tag" => [],
+                   "to" => [^followers_url],
+                   "type" => "Event"
+                 },
+                 "to" => [^followers_url],
+                 "type" => "Create"
+               },
+               data
+             )
+    end
+
+    test "from a group member" do
+      %Actor{id: organizer_actor_id, url: actor_url} = actor = insert(:actor)
+
+      %Actor{
+        id: attributed_to_id,
+        url: group_url,
+        followers_url: followers_url,
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      insert(:member, parent: group, actor: actor, role: :moderator)
+
+      assert {:ok, %Event{}, data} =
+               Events.create(
+                 Map.merge(@event_data, %{
+                   organizer_actor_id: organizer_actor_id,
+                   attributed_to_id: attributed_to_id
+                 }),
+                 %{}
+               )
+
+      assert match?(
+               %{
+                 "actor" => ^actor_url,
+                 "attributedTo" => ^group_url,
+                 "cc" => [^members_url, ^followers_url],
+                 "object" => %{
+                   "actor" => ^actor_url,
+                   "anonymousParticipationEnabled" => false,
+                   "attachment" => [],
+                   "attributedTo" => ^group_url,
+                   "category" => nil,
+                   "cc" => [],
+                   "commentsEnabled" => false,
+                   "content" => nil,
+                   "draft" => false,
+                   "endTime" => nil,
+                   "ical:status" => "CONFIRMED",
+                   "joinMode" => "free",
+                   "maximumAttendeeCapacity" => nil,
+                   "mediaType" => "text/html",
+                   "name" => @event_title,
+                   "repliesModerationOption" => nil,
+                   "startTime" => @event_begins_on,
+                   "tag" => [],
+                   "to" => [@ap_public],
+                   "type" => "Event"
+                 },
+                 "to" => [@ap_public],
+                 "type" => "Create"
+               },
+               data
+             )
+    end
+  end
+
+  @event_updated_title "my event updated"
+  @event_update_data %{title: @event_updated_title}
+
+  describe "test event update" do
+    test "from a simple profile" do
+      %Actor{url: actor_url, followers_url: followers_url} = actor = insert(:actor)
+
+      {:ok, begins_on, _} = DateTime.from_iso8601(@event_begins_on)
+      %Event{} = event = insert(:event, organizer_actor: actor, begins_on: begins_on)
+
+      assert {:ok, %Event{}, data} =
+               Events.update(
+                 event,
+                 @event_update_data,
+                 %{}
+               )
+
+      assert match?(
+               %{
+                 "actor" => ^actor_url,
+                 "attributedTo" => ^actor_url,
+                 "cc" => [^followers_url],
+                 "object" => %{
+                   "actor" => ^actor_url,
+                   "anonymousParticipationEnabled" => false,
+                   "attributedTo" => ^actor_url,
+                   "cc" => [],
+                   "commentsEnabled" => false,
+                   "draft" => false,
+                   "ical:status" => "CONFIRMED",
+                   "joinMode" => "free",
+                   "maximumAttendeeCapacity" => nil,
+                   "mediaType" => "text/html",
+                   "name" => @event_updated_title,
+                   "repliesModerationOption" => nil,
+                   "startTime" => @event_begins_on,
+                   "tag" => [],
+                   "to" => [@ap_public],
+                   "type" => "Event"
+                 },
+                 "to" => [@ap_public],
+                 "type" => "Update"
+               },
+               data
+             )
+    end
+
+    test "from a group member" do
+      %Actor{} = actor_1 = insert(:actor)
+      %Actor{id: organizer_actor_2_id, url: actor_2_url} = actor_2 = insert(:actor)
+
+      %Actor{
+        url: group_url,
+        followers_url: followers_url,
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      insert(:member, parent: group, actor: actor_1, role: :moderator)
+      insert(:member, parent: group, actor: actor_2, role: :moderator)
+
+      {:ok, begins_on, _} = DateTime.from_iso8601(@event_begins_on)
+
+      %Event{} =
+        event =
+        insert(:event, organizer_actor: actor_1, begins_on: begins_on, attributed_to: group)
+
+      assert {:ok, %Event{}, data} =
+               Events.update(
+                 event,
+                 Map.merge(@event_update_data, %{
+                   organizer_actor_id: organizer_actor_2_id
+                 }),
+                 %{}
+               )
+
+      assert match?(
+               %{
+                 "actor" => ^actor_2_url,
+                 "attributedTo" => ^group_url,
+                 "cc" => [^members_url, ^followers_url],
+                 "object" => %{
+                   "actor" => ^actor_2_url,
+                   "anonymousParticipationEnabled" => false,
+                   "attributedTo" => ^group_url,
+                   "cc" => [],
+                   "commentsEnabled" => false,
+                   "draft" => false,
+                   "ical:status" => "CONFIRMED",
+                   "joinMode" => "free",
+                   "maximumAttendeeCapacity" => nil,
+                   "mediaType" => "text/html",
+                   "name" => @event_updated_title,
+                   "repliesModerationOption" => nil,
+                   "startTime" => @event_begins_on,
+                   "tag" => [],
+                   "to" => [@ap_public],
+                   "type" => "Event"
+                 },
+                 "to" => [@ap_public],
+                 "type" => "Update"
+               },
+               data
+             )
+    end
+
+    test "from a remote group member" do
+      %Actor{id: organizer_actor_1_id, url: actor_1_url} = actor_1 = insert(:actor)
+      %Actor{} = actor_2 = insert(:actor)
+
+      %Actor{
+        url: group_url,
+        followers_url: followers_url,
+        members_url: members_url
+      } = group = insert(:group, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      insert(:member, parent: group, actor: actor_1, role: :moderator)
+      insert(:member, parent: group, actor: actor_2, role: :moderator)
+
+      {:ok, begins_on, _} = DateTime.from_iso8601(@event_begins_on)
+
+      %Event{} =
+        event =
+        insert(:event, organizer_actor: actor_2, begins_on: begins_on, attributed_to: group)
+
+      assert {:ok, %Event{}, data} =
+               Events.update(
+                 event,
+                 Map.merge(@event_update_data, %{
+                   organizer_actor_id: organizer_actor_1_id
+                 }),
+                 %{}
+               )
+
+      assert match?(
+               %{
+                 "actor" => ^actor_1_url,
+                 "attributedTo" => ^group_url,
+                 "cc" => [^members_url, ^followers_url],
+                 "object" => %{
+                   "actor" => ^actor_1_url,
+                   "anonymousParticipationEnabled" => false,
+                   "attributedTo" => ^group_url,
+                   "cc" => [],
+                   "commentsEnabled" => false,
+                   "draft" => false,
+                   "ical:status" => "CONFIRMED",
+                   "joinMode" => "free",
+                   "maximumAttendeeCapacity" => nil,
+                   "mediaType" => "text/html",
+                   "name" => @event_updated_title,
+                   "repliesModerationOption" => nil,
+                   "startTime" => @event_begins_on,
+                   "tag" => [],
+                   "to" => [@ap_public],
+                   "type" => "Event"
+                 },
+                 "to" => [@ap_public],
+                 "type" => "Update"
+               },
+               data
+             )
+    end
+  end
+
+  describe "join an event" do
+    test "simple and remote" do
+      %Actor{url: organizer_actor_url} =
+        organizer_actor = insert(:actor, domain: "somewhere.else")
+
+      %Actor{url: participant_actor_url} = actor = insert(:actor, domain: nil)
+
+      %Event{url: event_url} =
+        event = insert(:event, organizer_actor: organizer_actor, local: false)
+
+      assert {:ok, data, %Participant{}} = Events.join(event, actor, true, %{})
+
+      assert match?(
+               %{
+                 "actor" => ^participant_actor_url,
+                 "cc" => [],
+                 "object" => ^event_url,
+                 "participationMessage" => nil,
+                 "to" => [^participant_actor_url, ^organizer_actor_url],
+                 "type" => "Join"
+               },
+               data
+             )
+    end
+
+    test "simple and local" do
+      %Actor{url: organizer_actor_url} = organizer_actor = insert(:actor, domain: nil)
+
+      %Actor{url: participant_actor_url} = actor = insert(:actor, domain: nil)
+
+      %Event{url: event_url} = event = insert(:event, organizer_actor: organizer_actor)
+
+      assert {:accept, {:ok, %Activity{data: data, local: true}, %Participant{}}} =
+               Events.join(event, actor, true, %{})
+
+      assert match?(
+               %{
+                 "actor" => ^organizer_actor_url,
+                 "cc" => [],
+                 "object" => %{
+                   "actor" => ^participant_actor_url,
+                   "object" => ^event_url,
+                   "participationMessage" => nil,
+                   "type" => "Join"
+                 },
+                 "to" => [^participant_actor_url, ^organizer_actor_url],
+                 "type" => "Accept"
+               },
+               data
+             )
+    end
+
+    test "group event local" do
+      %Actor{url: organizer_group_url, members_url: members_url, followers_url: followers_url} =
+        organizer_group = insert(:group, domain: nil)
+
+      %Actor{url: participant_actor_url} = actor = insert(:actor, domain: nil)
+
+      %Event{url: event_url} = event = insert(:event, attributed_to: organizer_group)
+
+      assert {:ok, data, %Participant{}} = Events.join(event, actor, true, %{})
+
+      assert match?(
+               %{
+                 "actor" => ^participant_actor_url,
+                 "cc" => [^followers_url, ^members_url],
+                 "object" => ^event_url,
+                 "participationMessage" => nil,
+                 "to" => [^participant_actor_url, ^organizer_group_url],
+                 "type" => "Join"
+               },
+               data
+             )
+    end
+
+    test "group event with organizer remote" do
+      %Actor{url: organizer_group_url, members_url: members_url, followers_url: followers_url} =
+        organizer_group = insert(:group, domain: nil)
+
+      %Actor{url: organizer_actor_url} =
+        organizer_actor =
+        insert(:actor, domain: "somewhere.else", url: "https://somewhere.else/@someone")
+
+      insert(:member, parent: organizer_group, actor: organizer_actor, role: :moderator)
+
+      %Actor{url: participant_actor_url} = actor = insert(:actor, domain: nil)
+
+      %Event{url: event_url} =
+        event =
+        insert(:event,
+          attributed_to: organizer_group,
+          organizer_actor: organizer_actor,
+          local: true
+        )
+
+      assert {:ok, data, %Participant{}} = Events.join(event, actor, true, %{})
+
+      assert match?(
+               %{
+                 "actor" => ^participant_actor_url,
+                 "cc" => [^followers_url, ^members_url],
+                 "object" => ^event_url,
+                 "participationMessage" => nil,
+                 "to" => [^participant_actor_url, ^organizer_group_url],
+                 "type" => "Join"
+               },
+               data
+             )
+    end
+  end
+end

test/graphql/resolvers/event_test.exs

@@ -5,8 +5,11 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
 
   import Mobilizon.Factory
 
-  alias Mobilizon.Events
+  alias Mobilizon.Actors.Actor
+  alias Mobilizon.{Events, Users}
+  alias Mobilizon.Events.Event
   alias Mobilizon.Service.Workers
+  alias Mobilizon.Users.User
 
   alias Mobilizon.GraphQL.AbsintheHelpers
 
@@ -21,6 +24,15 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
     category: "meeting"
   }
 
+  @find_event_query """
+  query Event($uuid: UUID!) {
+      event(uuid: $uuid) {
+        uuid,
+        draft
+      }
+    }
+  """
+
   setup %{conn: conn} do
     user = insert(:user)
     actor = insert(:actor, user: user, preferred_username: "test")
@@ -28,16 +40,7 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
     {:ok, conn: conn, actor: actor, user: user}
   end
 
-  describe "Event Resolver" do
+  describe "Find an event" do
-    @find_event_query """
-    query Event($uuid: UUID!) {
-        event(uuid: $uuid) {
-          uuid,
-          draft
-        }
-      }
-    """
-
     test "find_event/3 returns an event", context do
       event =
         @event
@@ -66,7 +69,9 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
 
       assert [%{"message" => "Event not found"}] = res["errors"]
     end
+  end
 
+  describe "create_event/3 for a regular profile" do
     @create_event_mutation """
     mutation CreateEvent(
       $title: String!,
@@ -76,6 +81,7 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
       $status: EventStatus,
       $visibility: EventVisibility,
       $organizer_actor_id: ID!,
+      $attributed_to_id: ID,
       $online_address: String,
       $options: EventOptionsInput,
       $draft: Boolean
@@ -88,6 +94,7 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
           status: $status,
           visibility: $visibility,
           organizer_actor_id: $organizer_actor_id,
+          attributed_to_id: $attributed_to_id,
           online_address: $online_address,
           options: $options,
           draft: $draft
@@ -629,30 +636,171 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
 
       assert json_response(res, 200)["data"]["createEvent"]["picture"]["url"]
     end
+  end
 
-    test "update_event/3 should check the event exists", %{conn: conn, actor: _actor, user: user} do
+  describe "create_event/3 on behalf of a group" do
-      mutation = """
+    @variables %{
-          mutation {
+      title: "come to my event",
-              updateEvent(
+      description: "it will be fine",
-                  event_id: 45,
+      begins_on: "2021-07-26T09:00:00Z"
-                  title: "my event updated"
+    }
-              ) {
+
-                title,
+    test "create_event/3 should check the member has permission to create a group event", %{
-                uuid,
+      conn: conn
-                tags {
+    } do
-                  title,
+      %User{} = user = insert(:user)
-                  slug
+      %Actor{id: group_id} = group = insert(:group)
-                }
+
-              }
+      %Actor{id: member_not_approved_actor_id} =
-            }
+        member_not_approved_actor = insert(:actor, user: user)
-      """
+
+      insert(:member, parent: group, actor: member_not_approved_actor)
+      %Actor{id: member_actor_id} = member_actor = insert(:actor, user: user)
+      insert(:member, parent: group, actor: member_actor, role: :member)
+      %Actor{id: moderator_actor_id} = moderator_actor = insert(:actor, user: user)
+      insert(:member, parent: group, actor: moderator_actor, role: :moderator)
+      %Actor{id: not_member_actor_id} = insert(:actor, user: user)
+
+      variables = Map.put(@variables, :attributed_to_id, "#{group_id}")
 
       res =
         conn
         |> auth_conn(user)
-        |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
+        |> AbsintheHelpers.graphql_query(
+          query: @create_event_mutation,
+          variables: Map.put(variables, :organizer_actor_id, "#{member_not_approved_actor_id}")
+        )
 
-      assert hd(json_response(res, 200)["errors"])["message"] == "Event not found"
+      assert res["data"]["createEvent"] == nil
+
+      assert hd(res["errors"])["message"] ==
+               "Organizer profile doesn't have permission to create an event on behalf of this group"
+
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @create_event_mutation,
+          variables: Map.put(variables, :organizer_actor_id, "#{not_member_actor_id}")
+        )
+
+      assert res["data"]["createEvent"] == nil
+
+      assert hd(res["errors"])["message"] ==
+               "Organizer profile doesn't have permission to create an event on behalf of this group"
+
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @create_event_mutation,
+          variables: Map.put(variables, :organizer_actor_id, "#{member_actor_id}")
+        )
+
+      assert res["data"]["createEvent"] == nil
+
+      assert hd(res["errors"])["message"] ==
+               "Organizer profile doesn't have permission to create an event on behalf of this group"
+
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @create_event_mutation,
+          variables: Map.put(variables, :organizer_actor_id, "#{moderator_actor_id}")
+        )
+
+      assert res["errors"] == nil
+      assert res["data"]["createEvent"] != nil
+    end
+  end
+
+  @update_event_mutation """
+  mutation updateEvent(
+    $eventId: ID!
+    $title: String
+    $description: String
+    $beginsOn: DateTime
+    $endsOn: DateTime
+    $status: EventStatus
+    $visibility: EventVisibility
+    $joinOptions: EventJoinOptions
+    $draft: Boolean
+    $tags: [String]
+    $picture: MediaInput
+    $onlineAddress: String
+    $phoneAddress: String
+    $organizerActorId: ID
+    $attributedToId: ID
+    $category: String
+    $physicalAddress: AddressInput
+    $options: EventOptionsInput
+    $contacts: [Contact]
+  ) {
+  updateEvent(
+    eventId: $eventId
+    title: $title
+    description: $description
+    beginsOn: $beginsOn
+    endsOn: $endsOn
+    status: $status
+    visibility: $visibility
+    joinOptions: $joinOptions
+    draft: $draft
+    tags: $tags
+    picture: $picture
+    onlineAddress: $onlineAddress
+    phoneAddress: $phoneAddress
+    organizerActorId: $organizerActorId
+    attributedToId: $attributedToId
+    category: $category
+    physicalAddress: $physicalAddress
+    options: $options
+    contacts: $contacts
+  ) {
+      id,
+      uuid,
+      url,
+      title
+      draft
+      description
+      beginsOn
+      endsOn
+      status
+      tags {
+        title,
+        slug
+      },
+      online_address,
+      phone_address,
+      category,
+      options {
+        maximumAttendeeCapacity,
+        showRemainingAttendeeCapacity
+      },
+      physicalAddress {
+        url,
+        geom,
+        street
+      }
+      picture {
+        name
+      }
+    }
+  }
+  """
+
+  describe "update_event/3" do
+    test "update_event/3 should check the event exists", %{conn: conn, actor: _actor, user: user} do
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: %{eventId: 45, title: "my event updated"}
+        )
+
+      assert hd(res["errors"])["message"] == "Event not found"
     end
 
     test "update_event/3 should check the user can change the organizer", %{
@@ -663,29 +811,15 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
       event = insert(:event, organizer_actor: actor)
       actor2 = insert(:actor)
 
-      mutation = """
-          mutation {
-              updateEvent(
-                  title: "my event updated",
-                  event_id: #{event.id}
-                  organizer_actor_id: #{actor2.id}
-              ) {
-                title,
-                uuid,
-                tags {
-                  title,
-                  slug
-                }
-              }
-            }
-      """
-
       res =
         conn
         |> auth_conn(user)
-        |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: %{eventId: event.id, title: "my event updated", organizerActorId: actor2.id}
+        )
 
-      assert hd(json_response(res, 200)["errors"])["message"] ==
+      assert hd(res["errors"])["message"] ==
                "You can't attribute this event to this profile."
     end
 
@@ -696,28 +830,15 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
     } do
       event = insert(:event)
 
-      mutation = """
-          mutation {
-              updateEvent(
-                  title: "my event updated",
-                  event_id: #{event.id}
-              ) {
-                title,
-                uuid,
-                tags {
-                  title,
-                  slug
-                }
-              }
-            }
-      """
-
       res =
         conn
         |> auth_conn(user)
-        |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: %{eventId: event.id, title: "my event updated"}
+        )
 
-      assert hd(json_response(res, 200)["errors"])["message"] == "You can't edit this event."
+      assert hd(res["errors"])["message"] == "You can't edit this event."
     end
 
     test "update_event/3 should check the user is the organizer also when it's changed", %{
@@ -727,29 +848,15 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
     } do
       event = insert(:event)
 
-      mutation = """
-          mutation {
-              updateEvent(
-                  title: "my event updated",
-                  event_id: #{event.id},
-                  organizer_actor_id: #{actor.id}
-              ) {
-                title,
-                uuid,
-                tags {
-                  title,
-                  slug
-                }
-              }
-            }
-      """
-
       res =
         conn
         |> auth_conn(user)
-        |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: %{eventId: event.id, title: "my event updated", organizerActorId: actor.id}
+        )
 
-      assert hd(json_response(res, 200)["errors"])["message"] == "You can't edit this event."
+      assert hd(res["errors"])["message"] == "You can't edit this event."
     end
 
     test "update_event/3 should check end time is after the beginning time", %{
@@ -759,29 +866,19 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
     } do
       event = insert(:event, organizer_actor: actor)
 
-      mutation = """
-          mutation {
-              updateEvent(
-                  title: "my event updated",
-                  ends_on: "#{Timex.shift(event.begins_on, hours: -2)}",
-                  event_id: #{event.id}
-              ) {
-                title,
-                uuid,
-                tags {
-                  title,
-                  slug
-                }
-              }
-            }
-      """
-
       res =
         conn
         |> auth_conn(user)
-        |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: %{
+            eventId: event.id,
+            title: "my event updated",
+            endsOn: event.begins_on |> DateTime.add(3600 * -2) |> DateTime.to_iso8601()
+          }
+        )
 
-      assert hd(json_response(res, 200)["errors"])["message"] ==
+      assert hd(res["errors"])["message"] ==
                ["ends_on cannot be set before begins_on"]
     end
 
@@ -799,69 +896,41 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
       begins_on = DateTime.utc_now() |> DateTime.truncate(:second) |> DateTime.to_iso8601()
       ends_on = DateTime.utc_now() |> DateTime.truncate(:second) |> DateTime.to_iso8601()
 
-      mutation = """
-          mutation {
-              updateEvent(
-                  event_id: #{event.id},
-                  title: "my event updated",
-                  description: "description updated",
-                  begins_on: "#{begins_on}",
-                  ends_on: "#{ends_on}",
-                  status: TENTATIVE,
-                  tags: ["tag1_updated", "tag2_updated"],
-                  online_address: "toto@example.com",
-                  phone_address: "0000000000",
-                  category: "birthday",
-                  options: {
-                    maximumAttendeeCapacity: 30,
-                    showRemainingAttendeeCapacity: true
-                  },
-                  physical_address: {
-                    street: "#{address.street}",
-                    locality: "#{address.locality}"
-                  }
-              ) {
-                id,
-                uuid,
-                url,
-                title,
-                description,
-                begins_on,
-                ends_on,
-                status,
-                tags {
-                  title,
-                  slug
-                },
-                online_address,
-                phone_address,
-                category,
-                options {
-                  maximumAttendeeCapacity,
-                  showRemainingAttendeeCapacity
-                },
-                physicalAddress {
-                  url,
-                  geom,
-                  street
-                }
-              }
-            }
-      """
-
       res =
         conn
         |> auth_conn(user)
-        |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: %{
+            eventId: event.id,
+            title: "my event updated",
+            description: "description updated",
+            beginsOn: "#{begins_on}",
+            endsOn: "#{ends_on}",
+            status: "TENTATIVE",
+            tags: ["tag1_updated", "tag2_updated"],
+            onlineAddress: "toto@example.com",
+            phoneAddress: "0000000000",
+            category: "birthday",
+            options: %{
+              maximumAttendeeCapacity: 30,
+              showRemainingAttendeeCapacity: true
+            },
+            physicalAddress: %{
+              street: "#{address.street}",
+              locality: "#{address.locality}"
+            }
+          }
+        )
 
-      assert json_response(res, 200)["errors"] == nil
+      assert res["errors"] == nil
 
-      event_res = json_response(res, 200)["data"]["updateEvent"]
+      event_res = res["data"]["updateEvent"]
 
       assert event_res["title"] == "my event updated"
       assert event_res["description"] == "description updated"
-      assert event_res["begins_on"] == "#{begins_on}"
+      assert event_res["beginsOn"] == "#{begins_on}"
-      assert event_res["ends_on"] == "#{ends_on}"
+      assert event_res["endsOn"] == "#{ends_on}"
       assert event_res["status"] == "TENTATIVE"
       assert event_res["online_address"] == "toto@example.com"
       assert event_res["phone_address"] == "0000000000"
@@ -920,212 +989,166 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
 
       begins_on =
         event.begins_on
-        |> Timex.shift(hours: 3)
+        |> DateTime.add(3 * 3600)
         |> DateTime.truncate(:second)
         |> DateTime.to_iso8601()
 
-      mutation = """
-          mutation {
-              updateEvent(
-                  title: "my event updated",
-                  description: "description updated",
-                  begins_on: "#{begins_on}",
-                  event_id: #{event.id},
-                  category: "birthday",
-                  picture: {
-                    media: {
-                      name: "picture for my event",
-                      alt: "A very sunny landscape",
-                      file: "event.jpg",
-                      actor_id: "#{actor.id}"
-                    }
-                  }
-              ) {
-                title,
-                uuid,
-                url,
-                beginsOn,
-                picture {
-                  name,
-                  url
-                }
-              }
-          }
-      """
-
-      map = %{
-        "query" => mutation,
-        "event.jpg" => %Plug.Upload{
-          path: "test/fixtures/picture.png",
-          filename: "event.jpg"
-        }
-      }
-
       res =
         conn
         |> auth_conn(user)
         |> put_req_header("content-type", "multipart/form-data")
-        |> post("/api", map)
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: %{
+            eventId: event.id,
+            title: "my event updated",
+            description: "description updated",
+            beginsOn: "#{begins_on}",
+            category: "birthday",
+            picture: %{
+              media: %{
+                name: "picture for my event",
+                alt: "A very sunny landscape",
+                file: "event.jpg",
+                actorId: "#{actor.id}"
+              }
+            }
+          },
+          uploads: %{
+            "event.jpg" => %Plug.Upload{
+              path: "test/fixtures/picture.png",
+              filename: "event.jpg"
+            }
+          }
+        )
 
-      assert json_response(res, 200)["errors"] == nil
+      assert res["errors"] == nil
-      assert json_response(res, 200)["data"]["updateEvent"]["title"] == "my event updated"
+      assert res["data"]["updateEvent"]["title"] == "my event updated"
-      assert json_response(res, 200)["data"]["updateEvent"]["uuid"] == event.uuid
+      assert res["data"]["updateEvent"]["uuid"] == event.uuid
-      assert json_response(res, 200)["data"]["updateEvent"]["url"] == event.url
+      assert res["data"]["updateEvent"]["url"] == event.url
 
-      assert json_response(res, 200)["data"]["updateEvent"]["beginsOn"] ==
+      assert res["data"]["updateEvent"]["beginsOn"] ==
-               DateTime.to_iso8601(event.begins_on |> Timex.shift(hours: 3))
+               event.begins_on |> DateTime.add(3 * 3600) |> DateTime.to_iso8601()
 
-      assert json_response(res, 200)["data"]["updateEvent"]["picture"]["name"] ==
+      assert res["data"]["updateEvent"]["picture"]["name"] ==
                "picture for my event"
     end
 
-    test "update_event/3 respects the draft status", %{conn: conn, actor: actor, user: user} do
+    @person_participations_query """
+    query EventPersonParticipation($actorId: ID!, $eventId: ID!) {
+      person(id: $actorId) {
+        id
+        participations(eventId: $eventId) {
+          total
+          elements {
+            role
+            actor {
+              id
+            }
+            event {
+              id
+            }
+          }
+        }
+      }
+    }
+    """
+
+    test "respects the draft status", %{conn: conn, actor: actor, user: user} do
       event = insert(:event, organizer_actor: actor, draft: true)
 
-      mutation = """
-          mutation {
-              updateEvent(
-                  event_id: #{event.id},
-                  title: "my event updated but still draft"
-              ) {
-                draft,
-                title,
-                uuid
-              }
-            }
-      """
-
       res =
         conn
         |> auth_conn(user)
-        |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
+        |> AbsintheHelpers.graphql_query(
-
+          query: @update_event_mutation,
-      assert json_response(res, 200)["data"]["updateEvent"]["draft"] == true
+          variables: %{
-
+            eventId: event.id,
-      query = """
+            title: "my event updated but still draft",
-      {
+            draft: true
-        event(uuid: "#{event.uuid}") {
-          uuid,
-          draft
-        }
-      }
-      """
-
-      res =
-        conn
-        |> get("/api", AbsintheHelpers.query_skeleton(query, "event"))
-
-      assert hd(json_response(res, 200)["errors"])["message"] =~ "not found"
-
-      query = """
-      {
-        event(uuid: "#{event.uuid}") {
-          uuid,
-          draft
-        }
-      }
-      """
-
-      res =
-        conn
-        |> auth_conn(user)
-        |> get("/api", AbsintheHelpers.query_skeleton(query, "event"))
-
-      assert json_response(res, 200)["errors"] == nil
-      assert json_response(res, 200)["data"]["event"]["draft"] == true
-
-      query = """
-      {
-        person(id: "#{actor.id}") {
-          id,
-          participations(eventId: #{event.id}) {
-            elements {
-              id,
-              role,
-              actor {
-                id
-              },
-              event {
-                id
-              }
-            }
           }
-        }
+        )
-      }
+
-      """
+      assert res["data"]["updateEvent"]["draft"] == true
 
       res =
         conn
-        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
-        |> get("/api", AbsintheHelpers.query_skeleton(query, "person"))
+          query: @find_event_query,
-
+          variables: %{
-      assert json_response(res, 200)["errors"] == nil
+            uuid: event.uuid
-      assert json_response(res, 200)["data"]["person"]["participations"]["elements"] == []
-
-      mutation = """
-          mutation {
-              updateEvent(
-                  event_id: #{event.id},
-                  title: "my event updated and no longer draft",
-                  draft: false
-              ) {
-                draft,
-                title,
-                uuid
-              }
-            }
-      """
-
-      res =
-        conn
-        |> auth_conn(user)
-        |> post("/api", AbsintheHelpers.mutation_skeleton(mutation))
-
-      assert json_response(res, 200)["data"]["updateEvent"]["draft"] == false
-
-      query = """
-      {
-        event(uuid: "#{event.uuid}") {
-          uuid,
-          draft
-        }
-      }
-      """
-
-      res =
-        conn
-        |> get("/api", AbsintheHelpers.query_skeleton(query, "event"))
-
-      assert json_response(res, 200)["errors"] == nil
-      assert json_response(res, 200)["data"]["event"]["draft"] == false
-
-      query = """
-      {
-        person(id: "#{actor.id}") {
-          id,
-          participations(eventId: #{event.id}) {
-            elements {
-              role,
-              actor {
-                id
-              },
-              event {
-                id
-              }
-            }
           }
-        }
+        )
-      }
+
-      """
+      assert hd(res["errors"])["message"] =~ "not found"
 
       res =
         conn
         |> auth_conn(user)
-        |> get("/api", AbsintheHelpers.query_skeleton(query, "person"))
+        |> AbsintheHelpers.graphql_query(
+          query: @find_event_query,
+          variables: %{
+            uuid: event.uuid
+          }
+        )
 
-      assert json_response(res, 200)["errors"] == nil
+      assert res["errors"] == nil
+      assert res["data"]["event"]["draft"] == true
 
-      assert json_response(res, 200)["data"]["person"]["participations"]["elements"] == [
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @person_participations_query,
+          variables: %{
+            eventId: event.id,
+            actorId: actor.id
+          }
+        )
+
+      assert res["errors"] == nil
+      assert res["data"]["person"]["participations"]["elements"] == []
+
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: %{
+            eventId: event.id,
+            title: "my event updated and no longer draft",
+            draft: false
+          }
+        )
+
+      assert res["data"]["updateEvent"]["draft"] == false
+
+      res =
+        conn
+        |> AbsintheHelpers.graphql_query(
+          query: @find_event_query,
+          variables: %{
+            uuid: event.uuid
+          }
+        )
+
+      assert res["errors"] == nil
+      assert res["data"]["event"]["draft"] == false
+
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @person_participations_query,
+          variables: %{
+            eventId: event.id,
+            actorId: actor.id
+          }
+        )
+
+      assert res["errors"] == nil
+
+      assert res["data"]["person"]["participations"]["elements"] == [
                %{
                  "actor" => %{"id" => to_string(actor.id)},
                  "event" => %{"id" => to_string(event.id)},
@@ -1133,7 +1156,98 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
                }
              ]
     end
+  end
 
+  describe "update_event/3 on behalf of a group" do
+    test "should check the member has permission to update a group event", %{
+      conn: conn
+    } do
+      %User{} = user = insert(:user)
+      %Actor{id: group_id} = group = insert(:group)
+
+      %Actor{id: member_not_approved_actor_id} =
+        member_not_approved_actor = insert(:actor, user: user)
+
+      insert(:member, parent: group, actor: member_not_approved_actor)
+      %Actor{id: member_actor_id} = member_actor = insert(:actor, user: user)
+      insert(:member, parent: group, actor: member_actor, role: :member)
+      %Actor{id: moderator_actor_id} = moderator_actor = insert(:actor, user: user)
+      insert(:member, parent: group, actor: moderator_actor, role: :moderator)
+
+      %Actor{} = administrator_actor = insert(:actor, user: user)
+      insert(:member, parent: group, actor: administrator_actor, role: :administrator)
+
+      %Actor{id: not_member_actor_id} = insert(:actor, user: user)
+
+      %Event{} =
+        event = insert(:event, attributed_to: group, organizer_actor: administrator_actor)
+
+      variables =
+        @variables
+        |> Map.put(:attributed_to_id, "#{group_id}")
+        |> Map.put(:eventId, to_string(event.id))
+
+      Users.update_user_default_actor(user.id, member_not_approved_actor_id)
+
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: Map.put(variables, :organizer_actor_id, "#{member_not_approved_actor_id}")
+        )
+
+      assert res["data"]["updateEvent"] == nil
+
+      assert hd(res["errors"])["message"] ==
+               "This profile doesn't have permission to update an event on behalf of this group"
+
+      Users.update_user_default_actor(user.id, not_member_actor_id)
+
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: Map.put(variables, :organizer_actor_id, "#{not_member_actor_id}")
+        )
+
+      assert res["data"]["updateEvent"] == nil
+
+      assert hd(res["errors"])["message"] ==
+               "This profile doesn't have permission to update an event on behalf of this group"
+
+      Users.update_user_default_actor(user.id, member_actor_id)
+
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: Map.put(variables, :organizer_actor_id, "#{member_actor_id}")
+        )
+
+      assert res["data"]["updateEvent"] == nil
+
+      assert hd(res["errors"])["message"] ==
+               "This profile doesn't have permission to update an event on behalf of this group"
+
+      Users.update_user_default_actor(user.id, moderator_actor_id)
+
+      res =
+        conn
+        |> auth_conn(user)
+        |> AbsintheHelpers.graphql_query(
+          query: @update_event_mutation,
+          variables: Map.put(variables, :organizer_actor_id, "#{moderator_actor_id}")
+        )
+
+      assert res["errors"] == nil
+      assert res["data"]["updateEvent"] != nil
+    end
+  end
+
+  describe "list_events/3" do
     @fetch_events_query """
     query Events($page: Int, $limit: Int) {
       events(page: $page, limit: $limit) {
@@ -1250,7 +1364,9 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
     #      assert json_response(res, 200)["errors"] |> hd |> Map.get("message") ==
     #               "Event with UUID #{event.uuid} not found"
     #    end
+  end
 
+  describe "delete_event/3" do
     test "delete_event/3 deletes an event", %{conn: conn, user: user, actor: actor} do
       event = insert(:event, organizer_actor: actor)
 
@@ -1393,7 +1509,9 @@ defmodule Mobilizon.Web.Resolvers.EventTest do
                "object" => %{"title" => event.title, "id" => to_string(event.id)}
              }
     end
+  end
 
+  describe "list_related_events/3" do
     test "list_related_events/3 should give related events", %{
       conn: conn,
       actor: actor

test/graphql/resolvers/post_test.exs

@@ -297,7 +297,7 @@ defmodule Mobilizon.GraphQL.Resolvers.PostTest do
           }
         )
 
-      assert is_nil(res["errors"])
+      assert res["errors"] == nil
 
       assert res["data"]["post"]["title"] == post_draft.title
       assert res["data"]["post"]["draft"] == true

test/graphql/resolvers/search_test.exs

@@ -205,6 +205,19 @@ defmodule Mobilizon.GraphQL.Resolvers.SearchTest do
       assert hd(res["data"]["searchEvents"]["elements"])["uuid"] ==
                event.uuid
     end
+
+    test "doesn't find drafts", %{conn: conn} do
+      insert(:event, title: "A draft event", draft: true)
+
+      res =
+        AbsintheHelpers.graphql_query(conn,
+          query: @search_events_query,
+          variables: %{term: "draft"}
+        )
+
+      assert res["errors"] == nil
+      assert res["data"]["searchEvents"]["total"] == 0
+    end
   end
 
   describe "search_persons/3" do

test/support/absinthe_helpers.ex

@@ -28,14 +28,24 @@ defmodule Mobilizon.GraphQL.AbsintheHelpers do
   @spec graphql_query(Conn.t(), Keyword.t()) :: map | no_return
   def graphql_query(conn, options) do
     conn
-    |> post("/api", build_query(options[:query], Keyword.get(options, :variables, %{})))
+    |> post(
+      "/api",
+      build_query(
+        options[:query],
+        Keyword.get(options, :variables, %{}),
+        Keyword.get(options, :uploads, %{})
+      )
+    )
     |> json_response(200)
   end
 
-  defp build_query(query, variables) do
+  defp build_query(query, variables, uploads) do
-    %{
+    Map.merge(
-      "query" => query,
+      %{
-      "variables" => variables
+        "query" => query,
-    }
+        "variables" => variables
+      },
+      uploads
+    )
   end
 end

test/support/factory.ex

@@ -158,6 +158,7 @@ defmodule Mobilizon.Factory do
       deleted_at: nil,
       tags: build_list(3, :tag),
       in_reply_to_comment: nil,
+      origin_comment: nil,
       is_announcement: false,
       published_at: DateTime.utc_now(),
       url: Routes.page_url(Endpoint, :comment, uuid)
@@ -450,4 +451,12 @@ defmodule Mobilizon.Factory do
       user: build(:user)
     }
   end
+
+  def share_factory do
+    %Mobilizon.Share{
+      actor: build(:actor),
+      owner_actor: build(:actor),
+      uri: sequence("https://someshare.uri/p/12")
+    }
+  end
 end