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My custom branche(s) on git.pleroma.social/pleroma/pleroma git clone https://hacktivis.me/git/pleroma.git
commit: 787e30c5fd2f54a07db1bad84ef20aa9a4a406ab
parent 714bf0cb2332050a3a64c6197dae729cf7de1b95
Author: floatingghost <hannah@coffee-and-dreams.uk>
Date:   Sun,  4 Sep 2022 23:31:41 +0000

Allow reacting with remote emoji when they exist on the post (#200)

Co-authored-by: FloatingGhost <hannah@coffee-and-dreams.uk>
Reviewed-on: https://akkoma.dev/AkkomaGang/akkoma/pulls/200

Diffstat:

Mlib/pleroma/web/activity_pub/builder.ex79++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
Mlib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex55++++++++++++++++++++++++++++++++++++++++++++++---------
Mlib/pleroma/web/activity_pub/utils.ex70++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------
Mlib/pleroma/web/mastodon_api/views/status_view.ex12+++++++-----
Mlib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex21++++++++++++++++-----
Mlib/pleroma/web/pleroma_api/views/emoji_reaction_view.ex18++++++++++++++++--
Mtest/pleroma/web/pleroma_api/controllers/emoji_reaction_controller_test.exs147+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----
7 files changed, 362 insertions(+), 40 deletions(-)

diff --git a/lib/pleroma/web/activity_pub/builder.ex b/lib/pleroma/web/activity_pub/builder.ex @@ -16,6 +16,7 @@ defmodule Pleroma.Web.ActivityPub.Builder do alias Pleroma.Web.ActivityPub.Utils alias Pleroma.Web.ActivityPub.Visibility alias Pleroma.Web.CommonAPI.ActivityDraft + alias Pleroma.Web.Endpoint require Pleroma.Constants @@ -54,13 +55,85 @@ defmodule Pleroma.Web.ActivityPub.Builder do {:ok, data, []} end + defp unicode_emoji_react(_object, data, emoji) do + data + |> Map.put("content", emoji) + |> Map.put("type", "EmojiReact") + end + + defp add_emoji_content(data, emoji, url) do + data + |> Map.put("content", Emoji.maybe_quote(emoji)) + |> Map.put("type", "EmojiReact") + |> Map.put("tag", [ + %{} + |> Map.put("id", url) + |> Map.put("type", "Emoji") + |> Map.put("name", Emoji.maybe_quote(emoji)) + |> Map.put( + "icon", + %{} + |> Map.put("type", "Image") + |> Map.put("url", url) + ) + ]) + end + + defp remote_custom_emoji_react( + %{data: %{"reactions" => existing_reactions}}, + data, + emoji + ) do + [emoji_code, instance] = String.split(Emoji.stripped_name(emoji), "@") + + matching_reaction = + Enum.find( + existing_reactions, + fn [name, _, url] -> + url = URI.parse(url) + url.host == instance && name == emoji_code + end + ) + + if matching_reaction do + [name, _, url] = matching_reaction + add_emoji_content(data, name, url) + else + {:error, "Could not react"} + end + end + + defp remote_custom_emoji_react(_object, _data, _emoji) do + {:error, "Could not react"} + end + + defp local_custom_emoji_react(data, emoji) do + with %{} = emojo <- Emoji.get(emoji) do + path = emojo |> Map.get(:file) + url = "#{Endpoint.url()}#{path}" + add_emoji_content(data, emojo.code, url) + else + _ -> {:error, "Emoji does not exist"} + end + end + + defp custom_emoji_react(object, data, emoji) do + if String.contains?(emoji, "@") do + remote_custom_emoji_react(object, data, emoji) + else + local_custom_emoji_react(data, emoji) + end + end + @spec emoji_react(User.t(), Object.t(), String.t()) :: {:ok, map(), keyword()} def emoji_react(actor, object, emoji) do with {:ok, data, meta} <- object_action(actor, object) do data = - data - |> Map.put("content", emoji) - |> Map.put("type", "EmojiReact") + if Emoji.is_unicode_emoji?(emoji) do + unicode_emoji_react(object, data, emoji) + else + custom_emoji_react(object, data, emoji) + end {:ok, data, meta} end diff --git a/lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex b/lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex @@ -5,6 +5,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do use Ecto.Schema + alias Pleroma.Emoji alias Pleroma.Object alias Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes @@ -12,6 +13,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations @primary_key false + @emoji_regex ~r/:[A-Za-z0-9_-]+(@.+)?:/ embedded_schema do quote do @@ -19,6 +21,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do import Elixir.Pleroma.Web.ActivityPub.ObjectValidators.CommonFields message_fields() activity_fields() + tag_fields() end end @@ -43,7 +46,8 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do def changeset(struct, data) do struct - |> cast(data, __schema__(:fields)) + |> cast(data, __schema__(:fields) -- [:tag]) + |> cast_embed(:tag) end defp fix(data) do @@ -53,12 +57,21 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do |> CommonFixes.fix_actor() |> CommonFixes.fix_activity_addressing() - with %Object{} = object <- Object.normalize(data["object"]) do - data - |> CommonFixes.fix_activity_context(object) - |> CommonFixes.fix_object_action_recipients(object) - else - _ -> data + data = + if Map.has_key?(data, "tag") do + data + else + Map.put(data, "tag", []) + end + + case Object.normalize(data["object"]) do + %Object{} = object -> + data + |> CommonFixes.fix_activity_context(object) + |> CommonFixes.fix_object_action_recipients(object) + + _ -> + data end end @@ -79,14 +92,37 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do defp fix_emoji_qualification(data), do: data + defp matches_shortcode?(nil), do: false + defp matches_shortcode?(s), do: Regex.match?(@emoji_regex, s) + defp validate_emoji(cng) do content = get_field(cng, :content) - if Pleroma.Emoji.is_unicode_emoji?(content) do + if Emoji.is_unicode_emoji?(content) || matches_shortcode?(content) do cng else cng - |> add_error(:content, "must be a single character emoji") + |> add_error(:content, "is not a valid emoji") + end + end + + defp maybe_validate_tag_presence(cng) do + content = get_field(cng, :content) + + if Emoji.is_unicode_emoji?(content) do + cng + else + tag = get_field(cng, :tag) + emoji_name = Emoji.stripped_name(content) + + case tag do + [%{name: ^emoji_name, type: "Emoji", icon: %{url: _}}] -> + cng + + _ -> + cng + |> add_error(:tag, "does not contain an Emoji tag") + end end end @@ -97,5 +133,6 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do |> validate_actor_presence() |> validate_object_presence() |> validate_emoji() + |> maybe_validate_tag_presence() end end diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex @@ -325,21 +325,29 @@ defmodule Pleroma.Web.ActivityPub.Utils do {:ok, Object.t()} | {:error, Ecto.Changeset.t()} def add_emoji_reaction_to_object( - %Activity{data: %{"content" => emoji, "actor" => actor}}, + %Activity{data: %{"content" => emoji, "actor" => actor}} = activity, object ) do reactions = get_cached_emoji_reactions(object) + emoji = Pleroma.Emoji.stripped_name(emoji) + url = emoji_url(emoji, activity) new_reactions = - case Enum.find_index(reactions, fn [candidate, _] -> emoji == candidate end) do + case Enum.find_index(reactions, fn [candidate, _, candidate_url] -> + if is_nil(candidate_url) do + emoji == candidate + else + url == candidate_url + end + end) do nil -> - reactions ++ [[emoji, [actor]]] + reactions ++ [[emoji, [actor], url]] index -> List.update_at( reactions, index, - fn [emoji, users] -> [emoji, Enum.uniq([actor | users])] end + fn [emoji, users, url] -> [emoji, Enum.uniq([actor | users]), url] end ) end @@ -348,18 +356,40 @@ defmodule Pleroma.Web.ActivityPub.Utils do update_element_in_object("reaction", new_reactions, object, count) end + defp emoji_url( + name, + %Activity{ + data: %{ + "tag" => [ + %{"type" => "Emoji", "name" => name, "icon" => %{"url" => url}} + ] + } + } + ), + do: url + + defp emoji_url(_, _), do: nil + def emoji_count(reactions_list) do - Enum.reduce(reactions_list, 0, fn [_, users], acc -> acc + length(users) end) + Enum.reduce(reactions_list, 0, fn [_, users, _], acc -> acc + length(users) end) end def remove_emoji_reaction_from_object( - %Activity{data: %{"content" => emoji, "actor" => actor}}, + %Activity{data: %{"content" => emoji, "actor" => actor}} = activity, object ) do + emoji = Pleroma.Emoji.stripped_name(emoji) reactions = get_cached_emoji_reactions(object) + url = emoji_url(emoji, activity) new_reactions = - case Enum.find_index(reactions, fn [candidate, _] -> emoji == candidate end) do + case Enum.find_index(reactions, fn [candidate, _, candidate_url] -> + if is_nil(candidate_url) do + emoji == candidate + else + url == candidate_url + end + end) do nil -> reactions @@ -367,9 +397,9 @@ defmodule Pleroma.Web.ActivityPub.Utils do List.update_at( reactions, index, - fn [emoji, users] -> [emoji, List.delete(users, actor)] end + fn [emoji, users, url] -> [emoji, List.delete(users, actor), url] end ) - |> Enum.reject(fn [_, users] -> Enum.empty?(users) end) + |> Enum.reject(fn [_, users, _] -> Enum.empty?(users) end) end count = emoji_count(new_reactions) @@ -489,17 +519,37 @@ defmodule Pleroma.Web.ActivityPub.Utils do def get_latest_reaction(internal_activity_id, %{ap_id: ap_id}, emoji) do %{data: %{"object" => object_ap_id}} = Activity.get_by_id(internal_activity_id) + emoji = Pleroma.Emoji.maybe_quote(emoji) "EmojiReact" |> Activity.Queries.by_type() |> where(actor: ^ap_id) - |> where([activity], fragment("?->>'content' = ?", activity.data, ^emoji)) + |> custom_emoji_discriminator(emoji) |> Activity.Queries.by_object_id(object_ap_id) |> order_by([activity], fragment("? desc nulls last", activity.id)) |> limit(1) |> Repo.one() end + defp custom_emoji_discriminator(query, emoji) do + if String.contains?(emoji, "@") do + stripped = Pleroma.Emoji.stripped_name(emoji) + [name, domain] = String.split(stripped, "@") + domain_pattern = "%" <> domain <> "%" + emoji_pattern = Pleroma.Emoji.maybe_quote(name) + + query + |> where([activity], fragment("?->>'content' = ? + AND EXISTS ( + SELECT FROM jsonb_array_elements(?->'tag') elem + WHERE elem->>'id' ILIKE ? + )", activity.data, ^emoji_pattern, activity.data, ^domain_pattern)) + else + query + |> where([activity], fragment("?->>'content' = ?", activity.data, ^emoji)) + end + end + #### Announce-related helpers @doc """ diff --git a/lib/pleroma/web/mastodon_api/views/status_view.ex b/lib/pleroma/web/mastodon_api/views/status_view.ex @@ -340,8 +340,8 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do opts[:for], Map.get(opts, :with_muted, false) ) - |> Stream.map(fn {emoji, users} -> - build_emoji_map(emoji, users, opts[:for]) + |> Stream.map(fn {emoji, users, url} -> + build_emoji_map(emoji, users, url, opts[:for]) end) |> Enum.to_list() @@ -702,11 +702,13 @@ defmodule Pleroma.Web.MastodonAPI.StatusView do end end - defp build_emoji_map(emoji, users, current_user) do + defp build_emoji_map(emoji, users, url, current_user) do %{ - name: emoji, + name: Pleroma.Web.PleromaAPI.EmojiReactionView.emoji_name(emoji, url), count: length(users), - me: !!(current_user && current_user.ap_id in users) + url: MediaProxy.url(url), + me: !!(current_user && current_user.ap_id in users), + account_ids: Enum.map(users, fn user -> User.get_cached_by_ap_id(user).id end) } end diff --git a/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex b/lib/pleroma/web/pleroma_api/controllers/emoji_reaction_controller.ex @@ -50,29 +50,35 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionController do if not with_muted, do: User.cached_muted_users_ap_ids(user), else: [] end - filter_emoji = fn emoji, users -> + filter_emoji = fn emoji, users, url -> case Enum.reject(users, &(&1 in exclude_ap_ids)) do [] -> nil - users -> {emoji, users} + users -> {emoji, users, url} end end reactions |> Stream.map(fn - [emoji, users] when is_list(users) -> filter_emoji.(emoji, users) - {emoji, users} when is_list(users) -> filter_emoji.(emoji, users) + [emoji, users, url] when is_list(users) -> filter_emoji.(emoji, users, url) + {emoji, users, url} when is_list(users) -> filter_emoji.(emoji, users, url) + {emoji, users} when is_list(users) -> filter_emoji.(emoji, users, nil) _ -> nil end) |> Stream.reject(&is_nil/1) end defp filter(reactions, %{emoji: emoji}) when is_binary(emoji) do - Enum.filter(reactions, fn [e, _] -> e == emoji end) + Enum.filter(reactions, fn [e, _, _] -> e == emoji end) end defp filter(reactions, _), do: reactions def create(%{assigns: %{user: user}} = conn, %{id: activity_id, emoji: emoji}) do + emoji = + emoji + |> Pleroma.Emoji.fully_qualify_emoji() + |> Pleroma.Emoji.maybe_quote() + with {:ok, _activity} <- CommonAPI.react_with_emoji(activity_id, user, emoji) do activity = Activity.get_by_id(activity_id) @@ -83,6 +89,11 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionController do end def delete(%{assigns: %{user: user}} = conn, %{id: activity_id, emoji: emoji}) do + emoji = + emoji + |> Pleroma.Emoji.fully_qualify_emoji() + |> Pleroma.Emoji.maybe_quote() + with {:ok, _activity} <- CommonAPI.unreact_with_emoji(activity_id, user, emoji) do activity = Activity.get_by_id(activity_id) diff --git a/lib/pleroma/web/pleroma_api/views/emoji_reaction_view.ex b/lib/pleroma/web/pleroma_api/views/emoji_reaction_view.ex @@ -7,17 +7,31 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionView do alias Pleroma.Web.MastodonAPI.AccountView + def emoji_name(emoji, nil), do: emoji + alias Pleroma.Web.MediaProxy + + def emoji_name(emoji, url) do + url = URI.parse(url) + + if url.host == Pleroma.Web.Endpoint.host() do + emoji + else + "#{emoji}@#{url.host}" + end + end + def render("index.json", %{emoji_reactions: emoji_reactions} = opts) do render_many(emoji_reactions, __MODULE__, "show.json", opts) end - def render("show.json", %{emoji_reaction: {emoji, user_ap_ids}, user: user}) do + def render("show.json", %{emoji_reaction: {emoji, user_ap_ids, url}, user: user}) do users = fetch_users(user_ap_ids) %{ - name: emoji, + name: emoji_name(emoji, url), count: length(users), accounts: render(AccountView, "index.json", users: users, for: user), + url: MediaProxy.url(url), me: !!(user && user.ap_id in user_ap_ids) } end diff --git a/test/pleroma/web/pleroma_api/controllers/emoji_reaction_controller_test.exs b/test/pleroma/web/pleroma_api/controllers/emoji_reaction_controller_test.exs @@ -17,23 +17,101 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionControllerTest do user = insert(:user) other_user = insert(:user) + note = insert(:note, user: user, data: %{"reactions" => [["👍", [other_user.ap_id], nil]]}) + activity = insert(:note_activity, note: note, user: user) + + result = + conn + |> assign(:user, other_user) + |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"])) + |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/\u26A0") + |> json_response_and_validate_schema(200) + + assert %{"id" => id} = result + assert to_string(activity.id) == id + + assert result["pleroma"]["emoji_reactions"] == [ + %{ + "name" => "👍", + "count" => 1, + "me" => true, + "url" => nil, + "account_ids" => [other_user.id] + }, + %{ + "name" => "\u26A0\uFE0F", + "count" => 1, + "me" => true, + "url" => nil, + "account_ids" => [other_user.id] + } + ] + {:ok, activity} = CommonAPI.post(user, %{status: "#cofe"}) + ObanHelpers.perform_all() + + # Reacting with a custom emoji result = conn |> assign(:user, other_user) |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"])) - |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/☕") + |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/:dinosaur:") |> json_response_and_validate_schema(200) - # We return the status, but this our implementation detail. assert %{"id" => id} = result assert to_string(activity.id) == id assert result["pleroma"]["emoji_reactions"] == [ - %{"name" => "☕", "count" => 1, "me" => true} + %{ + "name" => "dinosaur", + "count" => 1, + "me" => true, + "url" => "http://localhost:4001/emoji/dino walking.gif", + "account_ids" => [other_user.id] + } + ] + + # Reacting with a remote emoji + note = + insert(:note, + user: user, + data: %{"reactions" => [["wow", [other_user.ap_id], "https://remote/emoji/wow"]]} + ) + + activity = insert(:note_activity, note: note, user: user) + + result = + conn + |> assign(:user, user) + |> assign(:token, insert(:oauth_token, user: user, scopes: ["write:statuses"])) + |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/:wow@remote:") + |> json_response(200) + + assert result["pleroma"]["emoji_reactions"] == [ + %{ + "name" => "wow@remote", + "count" => 2, + "me" => true, + "url" => "https://remote/emoji/wow", + "account_ids" => [user.id, other_user.id] + } ] + # Reacting with a remote custom emoji that hasn't been reacted with yet + note = + insert(:note, + user: user + ) + + activity = insert(:note_activity, note: note, user: user) + + assert conn + |> assign(:user, user) + |> assign(:token, insert(:oauth_token, user: user, scopes: ["write:statuses"])) + |> put("/api/v1/pleroma/statuses/#{activity.id}/reactions/:wow@remote:") + |> json_response(400) + # Reacting with a non-emoji assert conn |> assign(:user, other_user) @@ -46,8 +124,21 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionControllerTest do user = insert(:user) other_user = insert(:user) - {:ok, activity} = CommonAPI.post(user, %{status: "#cofe"}) + note = + insert(:note, + user: user, + data: %{"reactions" => [["wow", [user.ap_id], "https://remote/emoji/wow"]]} + ) + + activity = insert(:note_activity, note: note, user: user) + + ObanHelpers.perform_all() + {:ok, _reaction_activity} = CommonAPI.react_with_emoji(activity.id, other_user, "☕") + {:ok, _reaction_activity} = CommonAPI.react_with_emoji(activity.id, other_user, ":dinosaur:") + + {:ok, _reaction_activity} = + CommonAPI.react_with_emoji(activity.id, other_user, ":wow@remote:") ObanHelpers.perform_all() @@ -60,11 +151,47 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionControllerTest do assert %{"id" => id} = json_response_and_validate_schema(result, 200) assert to_string(activity.id) == id + # Remove custom emoji + + result = + conn + |> assign(:user, other_user) + |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"])) + |> delete("/api/v1/pleroma/statuses/#{activity.id}/reactions/:dinosaur:") + + assert %{"id" => id} = json_response_and_validate_schema(result, 200) + assert to_string(activity.id) == id + ObanHelpers.perform_all() object = Object.get_by_ap_id(activity.data["object"]) - assert object.data["reaction_count"] == 0 + assert object.data["reaction_count"] == 2 + + # Remove custom remote emoji + result = + conn + |> assign(:user, other_user) + |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"])) + |> delete("/api/v1/pleroma/statuses/#{activity.id}/reactions/:wow@remote:") + |> json_response(200) + + assert result["pleroma"]["emoji_reactions"] == [ + %{ + "name" => "wow@remote", + "count" => 1, + "me" => false, + "url" => "https://remote/emoji/wow", + "account_ids" => [user.id] + } + ] + + # Remove custom remote emoji that hasn't been reacted with yet + assert conn + |> assign(:user, other_user) + |> assign(:token, insert(:oauth_token, user: other_user, scopes: ["write:statuses"])) + |> delete("/api/v1/pleroma/statuses/#{activity.id}/reactions/:zoop@remote:") + |> json_response(400) end test "GET /api/v1/pleroma/statuses/:id/reactions", %{conn: conn} do @@ -181,7 +308,15 @@ defmodule Pleroma.Web.PleromaAPI.EmojiReactionControllerTest do {:ok, _} = CommonAPI.react_with_emoji(activity.id, other_user, "🎅") {:ok, _} = CommonAPI.react_with_emoji(activity.id, other_user, "☕") - assert [%{"name" => "🎅", "count" => 1, "accounts" => [represented_user], "me" => false}] = + assert [ + %{ + "name" => "🎅", + "count" => 1, + "accounts" => [represented_user], + "me" => false, + "url" => nil + } + ] = conn |> get("/api/v1/pleroma/statuses/#{activity.id}/reactions/🎅") |> json_response_and_validate_schema(200)