mastodon api: add support for user-supplied html policy

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -98,7 +98,7 @@ def update_credentials(%{assigns: %{user: user}} = conn, params) do
         CommonAPI.update(user)
       end
 
-      json(conn, AccountView.render("account.json", %{user: user}))
+      json(conn, AccountView.render("account.json", %{user: user, for: user}))
     else
       _e ->
         conn
@@ -108,13 +108,13 @@ def update_credentials(%{assigns: %{user: user}} = conn, params) do
   end
 
   def verify_credentials(%{assigns: %{user: user}} = conn, _) do
-    account = AccountView.render("account.json", %{user: user})
+    account = AccountView.render("account.json", %{user: user, for: user})
     json(conn, account)
   end
 
-  def user(conn, %{"id" => id}) do
+  def user(%{assigns: %{user: for_user}} = conn, %{"id" => id}) do
     with %User{} = user <- Repo.get(User, id) do
-      account = AccountView.render("account.json", %{user: user})
+      account = AccountView.render("account.json", %{user: user, for: for_user})
       json(conn, account)
     else
       _e ->
@@ -588,7 +588,7 @@ def follow(%{assigns: %{user: follower}} = conn, %{"uri" => uri}) do
     with %User{} = followed <- Repo.get_by(User, nickname: uri),
          {:ok, follower} <- User.maybe_direct_follow(follower, followed),
          {:ok, _activity} <- ActivityPub.follow(follower, followed) do
-      render(conn, AccountView, "account.json", %{user: followed})
+      render(conn, AccountView, "account.json", %{user: followed, for: follower})
     else
       {:error, message} ->
         conn
@@ -858,7 +858,7 @@ def index(%{assigns: %{user: user}} = conn, _params) do
 
     if user && token do
       mastodon_emoji = mastodonized_emoji()
-      accounts = Map.put(%{}, user.id, AccountView.render("account.json", %{user: user}))
+      accounts = Map.put(%{}, user.id, AccountView.render("account.json", %{user: user, for: user}))
 
       initial_state =
         %{
@@ -1038,7 +1038,7 @@ def render_notification(user, %{id: id, activity: activity, inserted_at: created
           id: id,
           type: "mention",
           created_at: created_at,
-          account: AccountView.render("account.json", %{user: actor}),
+          account: AccountView.render("account.json", %{user: actor, for: user}),
           status: StatusView.render("status.json", %{activity: activity, for: user})
         }
 
@@ -1049,7 +1049,7 @@ def render_notification(user, %{id: id, activity: activity, inserted_at: created
           id: id,
           type: "favourite",
           created_at: created_at,
-          account: AccountView.render("account.json", %{user: actor}),
+          account: AccountView.render("account.json", %{user: actor, for: user}),
           status: StatusView.render("status.json", %{activity: liked_activity, for: user})
         }
 
@@ -1060,7 +1060,7 @@ def render_notification(user, %{id: id, activity: activity, inserted_at: created
           id: id,
           type: "reblog",
           created_at: created_at,
-          account: AccountView.render("account.json", %{user: actor}),
+          account: AccountView.render("account.json", %{user: actor, for: user}),
           status: StatusView.render("status.json", %{activity: announced_activity, for: user})
         }
 
@@ -1069,7 +1069,7 @@ def render_notification(user, %{id: id, activity: activity, inserted_at: created
           id: id,
           type: "follow",
           created_at: created_at,
-          account: AccountView.render("account.json", %{user: actor})
+          account: AccountView.render("account.json", %{user: actor, for: user})
         }
 
       _ ->

lib/pleroma/web/mastodon_api/views/account_view.ex

@@ -10,7 +10,7 @@ def render("accounts.json", %{users: users} = opts) do
     render_many(users, AccountView, "account.json", opts)
   end
 
-  def render("account.json", %{user: user}) do
+  def render("account.json", %{user: user} = opts) do
     image = User.avatar_url(user) |> MediaProxy.url()
     header = User.banner_url(user) |> MediaProxy.url()
     user_info = User.user_info(user)
@@ -33,6 +33,8 @@ def render("account.json", %{user: user}) do
       |> Enum.filter(fn %{"type" => t} -> t == "PropertyValue" end)
       |> Enum.map(fn fields -> Map.take(fields, ["name", "value"]) end)
 
+    bio = HTML.filter_tags(user.bio, User.html_filter_policy(opts[:for]))
+
     %{
       id: to_string(user.id),
       username: username_from_nickname(user.nickname),
@@ -43,7 +45,7 @@ def render("account.json", %{user: user}) do
       followers_count: user_info.follower_count,
       following_count: user_info.following_count,
       statuses_count: user_info.note_count,
-      note: HTML.filter_tags(user.bio) || "",
+      note: bio || "",
       url: user.ap_id,
       avatar: image,
       avatar_static: image,

lib/pleroma/web/mastodon_api/views/status_view.ex

@@ -122,6 +122,10 @@ def render("status.json", %{activity: %{data: %{"object" => object}} = activity}
         %{shortcode: name, url: url, static_url: url, visible_in_picker: false}
       end)
 
+    content =
+      render_content(object)
+      |> HTML.filter_tags(User.html_filter_policy(opts[:for]))
+
     %{
       id: to_string(activity.id),
       uri: object["id"],
@@ -130,7 +134,7 @@ def render("status.json", %{activity: %{data: %{"object" => object}} = activity}
       in_reply_to_id: reply_to && to_string(reply_to.id),
       in_reply_to_account_id: reply_to_user && to_string(reply_to_user.id),
       reblog: nil,
-      content: render_content(object),
+      content: content,
       created_at: created_at,
       reblogs_count: announcement_count,
       replies_count: 0,
@@ -224,7 +228,7 @@ def render_content(%{"type" => "Video"} = object) do
         object["content"]
       end
 
-    HTML.filter_tags(content)
+    content
   end
 
   def render_content(%{"type" => "Article"} = object) do
@@ -237,10 +241,8 @@ def render_content(%{"type" => "Article"} = object) do
         object["content"]
       end
 
-    HTML.filter_tags(content)
+    content
   end
 
-  def render_content(object) do
-    HTML.filter_tags(object["content"])
-  end
+  def render_content(object), do: object["content"]
 end