1 files changed, 74 insertions, 40 deletions
diff --git a/lib/pleroma/web/common_api/activity_draft.ex b/lib/pleroma/web/common_api/activity_draft.ex
index 548f76609..b4e3e37ae 100644
--- a/lib/pleroma/web/common_api/activity_draft.ex
+++ b/lib/pleroma/web/common_api/activity_draft.ex
@@ -1,10 +1,12 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.CommonAPI.ActivityDraft do
   alias Pleroma.Activity
   alias Pleroma.Conversation.Participation
+  alias Pleroma.Object
+  alias Pleroma.Web.ActivityPub.Builder
   alias Pleroma.Web.CommonAPI
   alias Pleroma.Web.CommonAPI.Utils
 
@@ -22,7 +24,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
             in_reply_to_conversation: nil,
             visibility: nil,
             expires_at: nil,
-            poll: nil,
+            extra: nil,
             emoji: %{},
             content_html: nil,
             mentions: [],
@@ -35,9 +37,14 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
             preview?: false,
             changes: %{}
 
-  def create(user, params) do
+  def new(user, params) do
     %__MODULE__{user: user}
     |> put_params(params)
+  end
+
+  def create(user, params) do
+    user
+    |> new(params)
     |> status()
     |> summary()
     |> with_valid(&attachments/1)
@@ -57,6 +64,30 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
     |> validate()
   end
 
+  def listen(user, params) do
+    user
+    |> new(params)
+    |> visibility()
+    |> to_and_cc()
+    |> context()
+    |> listen_object()
+    |> with_valid(&changes/1)
+    |> validate()
+  end
+
+  defp listen_object(draft) do
+    object =
+      draft.params
+      |> Map.take([:album, :artist, :title, :length])
+      |> Map.new(fn {key, value} -> {to_string(key), value} end)
+      |> Map.put("type", "Audio")
+      |> Map.put("to", draft.to)
+      |> Map.put("cc", draft.cc)
+      |> Map.put("actor", draft.user.ap_id)
+
+    %__MODULE__{draft | object: object}
+  end
+
   defp put_params(draft, params) do
     params = Map.put_new(params, :in_reply_to_status_id, params[:in_reply_to_id])
     %__MODULE__{draft | params: params}
@@ -121,7 +152,7 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
   defp poll(draft) do
     case Utils.make_poll_data(draft.params) do
       {:ok, {poll, poll_emoji}} ->
-        %__MODULE__{draft | poll: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
+        %__MODULE__{draft | extra: poll, emoji: Map.merge(draft.emoji, poll_emoji)}
 
       {:error, message} ->
         add_error(draft, message)
@@ -129,32 +160,18 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
   end
 
   defp content(draft) do
-    {content_html, mentions, tags} =
-      Utils.make_content_html(
-        draft.status,
-        draft.attachments,
-        draft.params,
-        draft.visibility
-      )
-
-    %__MODULE__{draft | content_html: content_html, mentions: mentions, tags: tags}
-  end
+    {content_html, mentioned_users, tags} = Utils.make_content_html(draft)
 
-  defp to_and_cc(draft) do
-    addressed_users =
-      draft.mentions
+    mentions =
+      mentioned_users
       |> Enum.map(fn {_, mentioned_user} -> mentioned_user.ap_id end)
       |> Utils.get_addressed_users(draft.params[:to])
 
-    {to, cc} =
-      Utils.get_to_and_cc(
-        draft.user,
-        addressed_users,
-        draft.in_reply_to,
-        draft.visibility,
-        draft.in_reply_to_conversation
-      )
+    %__MODULE__{draft | content_html: content_html, mentions: mentions, tags: tags}
+  end
 
+  defp to_and_cc(draft) do
+    {to, cc} = Utils.get_to_and_cc(draft)
     %__MODULE__{draft | to: to, cc: cc}
   end
 
@@ -164,35 +181,52 @@ defmodule Pleroma.Web.CommonAPI.ActivityDraft do
   end
 
   defp sensitive(draft) do
-    sensitive = draft.params[:sensitive] || Enum.member?(draft.tags, {"#nsfw", "nsfw"})
+    sensitive = draft.params[:sensitive]
     %__MODULE__{draft | sensitive: sensitive}
   end
 
   defp object(draft) do
     emoji = Map.merge(Pleroma.Emoji.Formatter.get_emoji_map(draft.full_payload), draft.emoji)
 
+    # Sometimes people create posts with subject containing emoji,
+    # since subjects are usually copied this will result in a broken
+    # subject when someone replies from an instance that does not have
+    # the emoji or has it under different shortcode. This is an attempt
+    # to mitigate this by copying emoji from inReplyTo if they are present
+    # in the subject.
+    summary_emoji =
+      with %Activity{} <- draft.in_reply_to,
+           %Object{data: %{"tag" => [_ | _] = tag}} <- Object.normalize(draft.in_reply_to) do
+        Enum.reduce(tag, %{}, fn
+          %{"type" => "Emoji", "name" => name, "icon" => %{"url" => url}}, acc ->
+            if String.contains?(draft.summary, name) do
+              Map.put(acc, name, url)
+            else
+              acc
+            end
+
+          _, acc ->
+            acc
+        end)
+      else
+        _ -> %{}
+      end
+
+    emoji = Map.merge(emoji, summary_emoji)
+
+    {:ok, note_data, _meta} = Builder.note(draft)
+
     object =
-      Utils.make_note_data(
-        draft.user.ap_id,
-        draft.to,
-        draft.context,
-        draft.content_html,
-        draft.attachments,
-        draft.in_reply_to,
-        draft.tags,
-        draft.summary,
-        draft.cc,
-        draft.sensitive,
-        draft.poll
-      )
+      note_data
       |> Map.put("emoji", emoji)
       |> Map.put("source", draft.status)
+      |> Map.put("generator", draft.params[:generator])
 
     %__MODULE__{draft | object: object}
   end
 
   defp preview?(draft) do
-    preview? = Pleroma.Web.ControllerHelper.truthy_param?(draft.params[:preview])
+    preview? = Pleroma.Web.Utils.Params.truthy_param?(draft.params[:preview])
     %__MODULE__{draft | preview?: preview?}
   end