Expose unannounce activity so that it can be tested
[akkoma] / lib / pleroma / web / mastodon_api / mastodon_api_controller.ex
index 0615ac11a0ec26080f7396f3842d2352d6d64375..c01552410f446b738dbd11e896cf45743adbddf5 100644 (file)
@@ -11,8 +11,8 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   require Logger
 
   def create_app(conn, params) do
-    with cs <- App.register_changeset(%App{}, params) |> IO.inspect,
-         {:ok, app} <- Repo.insert(cs) |> IO.inspect do
+    with cs <- App.register_changeset(%App{}, params) |> IO.inspect(),
+         {:ok, app} <- Repo.insert(cs) |> IO.inspect() do
       res = %{
         id: app.id,
         client_id: app.client_id,
@@ -24,48 +24,58 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   end
 
   def update_credentials(%{assigns: %{user: user}} = conn, params) do
-    params = if bio = params["note"] do
-      Map.put(params, "bio", bio)
-    else
-      params
-    end
+    original_user = user
 
-    params = if name = params["display_name"] do
-      Map.put(params, "name", name)
-    else
-      params
-    end
+    params =
+      if bio = params["note"] do
+        Map.put(params, "bio", bio)
+      else
+        params
+      end
 
-    user = if avatar = params["avatar"] do
-      with %Plug.Upload{} <- avatar,
-           {:ok, object} <- ActivityPub.upload(avatar),
-           change = Ecto.Changeset.change(user, %{avatar: object.data}),
-           {:ok, user} = Repo.update(change) do
-        user
+    params =
+      if name = params["display_name"] do
+        Map.put(params, "name", name)
       else
-        _e -> user
+        params
       end
-    else
-      user
-    end
 
-    user = if banner = params["header"] do
-      with %Plug.Upload{} <- banner,
-           {:ok, object} <- ActivityPub.upload(banner),
-           new_info <- Map.put(user.info, "banner", object.data),
-           change <- User.info_changeset(user, %{info: new_info}),
-           {:ok, user} <- Repo.update(change) do
+    user =
+      if avatar = params["avatar"] do
+        with %Plug.Upload{} <- avatar,
+             {:ok, object} <- ActivityPub.upload(avatar),
+             change = Ecto.Changeset.change(user, %{avatar: object.data}),
+             {:ok, user} = User.update_and_set_cache(change) do
+          user
+        else
+          _e -> user
+        end
+      else
         user
+      end
+
+    user =
+      if banner = params["header"] do
+        with %Plug.Upload{} <- banner,
+             {:ok, object} <- ActivityPub.upload(banner),
+             new_info <- Map.put(user.info, "banner", object.data),
+             change <- User.info_changeset(user, %{info: new_info}),
+             {:ok, user} <- User.update_and_set_cache(change) do
+          user
+        else
+          _e -> user
+        end
       else
-        _e -> user
+        user
       end
-    else
-      user
-    end
 
     with changeset <- User.update_changeset(user, params),
-         {:ok, user} <- Repo.update(changeset) do
-      json conn, AccountView.render("account.json", %{user: user})
+         {:ok, user} <- User.update_and_set_cache(changeset) do
+      if original_user != user do
+        CommonAPI.update(user)
+      end
+
+      json(conn, AccountView.render("account.json", %{user: user}))
     else
       _e ->
         conn
@@ -84,25 +94,28 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       account = AccountView.render("account.json", %{user: user})
       json(conn, account)
     else
-      _e -> conn
-      |> put_status(404)
-      |> json(%{error: "Can't find user"})
+      _e ->
+        conn
+        |> put_status(404)
+        |> json(%{error: "Can't find user"})
     end
   end
 
   @instance Application.get_env(:pleroma, :instance)
+  @mastodon_api_level "2.3.3"
 
   def masto_instance(conn, _params) do
     response = %{
-      uri: Web.base_url,
+      uri: Web.base_url(),
       title: Keyword.get(@instance, :name),
       description: "A Pleroma instance, an alternative fediverse server",
-      version: Keyword.get(@instance, :version),
+      version: "#{@mastodon_api_level} (compatible; #{Keyword.get(@instance, :version)})",
       email: Keyword.get(@instance, :email),
       urls: %{
-        streaming_api: String.replace(Web.base_url, ["http","https"], "wss")
+        streaming_api: String.replace(Web.base_url(), ["http", "https"], "wss")
       },
-      stats: Stats.get_stats,
+      stats: Stats.get_stats(),
+      thumbnail: Web.base_url() <> "/instance/thumbnail.jpeg",
       max_toot_chars: Keyword.get(@instance, :limit)
     }
 
@@ -110,13 +123,14 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   end
 
   def peers(conn, _params) do
-    json(conn, Stats.get_peers)
+    json(conn, Stats.get_peers())
   end
 
   defp mastodonized_emoji do
     Pleroma.Formatter.get_custom_emoji()
     |> Enum.map(fn {shortcode, relative_url} ->
-      url = to_string URI.merge(Web.base_url(), relative_url)
+      url = to_string(URI.merge(Web.base_url(), relative_url))
+
       %{
         "shortcode" => shortcode,
         "static_url" => url,
@@ -127,17 +141,30 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
 
   def custom_emojis(conn, _params) do
     mastodon_emoji = mastodonized_emoji()
-    json conn, mastodon_emoji
+    json(conn, mastodon_emoji)
   end
 
-  defp add_link_headers(conn, method, activities) do
+  defp add_link_headers(conn, method, activities, param \\ false) do
     last = List.last(activities)
     first = List.first(activities)
+
     if last do
       min = last.id
       max = first.id
-      next_url = mastodon_api_url(Pleroma.Web.Endpoint, method, max_id: min)
-      prev_url = mastodon_api_url(Pleroma.Web.Endpoint, method, since_id: max)
+
+      {next_url, prev_url} =
+        if param do
+          {
+            mastodon_api_url(Pleroma.Web.Endpoint, method, param, max_id: min),
+            mastodon_api_url(Pleroma.Web.Endpoint, method, param, since_id: max)
+          }
+        else
+          {
+            mastodon_api_url(Pleroma.Web.Endpoint, method, max_id: min),
+            mastodon_api_url(Pleroma.Web.Endpoint, method, since_id: max)
+          }
+        end
+
       conn
       |> put_resp_header("link", "<#{next_url}>; rel=\"next\", <#{prev_url}>; rel=\"prev\"")
     else
@@ -146,12 +173,15 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   end
 
   def home_timeline(%{assigns: %{user: user}} = conn, params) do
-    params = params
-    |> Map.put("type", ["Create", "Announce"])
-    |> Map.put("blocking_user", user)
+    params =
+      params
+      |> Map.put("type", ["Create", "Announce"])
+      |> Map.put("blocking_user", user)
+      |> Map.put("user", user)
 
-    activities = ActivityPub.fetch_activities([user.ap_id | user.following], params)
-    |> Enum.reverse
+    activities =
+      ActivityPub.fetch_activities([user.ap_id | user.following], params)
+      |> Enum.reverse()
 
     conn
     |> add_link_headers(:home_timeline, activities)
@@ -159,49 +189,80 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   end
 
   def public_timeline(%{assigns: %{user: user}} = conn, params) do
-    params = params
-    |> Map.put("type", ["Create", "Announce"])
-    |> Map.put("local_only", params["local"] in [true, "True", "true", "1"])
-    |> Map.put("blocking_user", user)
+    params =
+      params
+      |> Map.put("type", ["Create", "Announce"])
+      |> Map.put("local_only", params["local"] in [true, "True", "true", "1"])
+      |> Map.put("blocking_user", user)
 
-    activities = ActivityPub.fetch_public_activities(params)
-    |> Enum.reverse
+    activities =
+      ActivityPub.fetch_public_activities(params)
+      |> Enum.reverse()
 
     conn
     |> add_link_headers(:public_timeline, activities)
     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
   end
 
-  # TODO: Link headers
   def user_statuses(%{assigns: %{user: user}} = conn, params) do
     with %User{ap_id: ap_id} <- Repo.get(User, params["id"]) do
-      params = params
-      |> Map.put("type", ["Create", "Announce"])
-      |> Map.put("actor_id", ap_id)
-      |> Map.put("whole_db", true)
-
-      activities = ActivityPub.fetch_activities([], params)
-      |> Enum.reverse
+      params =
+        params
+        |> Map.put("type", ["Create", "Announce"])
+        |> Map.put("actor_id", ap_id)
+        |> Map.put("whole_db", true)
+
+      if params["pinned"] == "true" do
+        # Since Pleroma has no "pinned" posts feature, we'll just set an empty list here
+        activities = []
+      else
+        activities =
+         ActivityPub.fetch_public_activities(params)
+         |> Enum.reverse()
+      end
 
-      render conn, StatusView, "index.json", %{activities: activities, for: user, as: :activity}
+      conn
+      |> add_link_headers(:user_statuses, activities, params["id"])
+      |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
     end
   end
 
   def get_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
-    with %Activity{} = activity <- Repo.get(Activity, id) do
-      render conn, StatusView, "status.json", %{activity: activity, for: user}
+    with %Activity{} = activity <- Repo.get(Activity, id),
+         true <- ActivityPub.visible_for_user?(activity, user) do
+      render(conn, StatusView, "status.json", %{activity: activity, for: user})
     end
   end
 
   def get_context(%{assigns: %{user: user}} = conn, %{"id" => id}) do
     with %Activity{} = activity <- Repo.get(Activity, id),
-         activities <- ActivityPub.fetch_activities_for_context(activity.data["object"]["context"], %{"blocking_user" => user}),
-         activities <- activities |> Enum.filter(fn (%{id: aid}) -> to_string(aid) != to_string(id) end),
-         activities <- activities |> Enum.filter(fn (%{data: %{"type" => type}}) -> type == "Create" end),
-         grouped_activities <- Enum.group_by(activities, fn (%{id: id}) -> id < activity.id end) do
+         activities <-
+           ActivityPub.fetch_activities_for_context(activity.data["context"], %{
+             "blocking_user" => user,
+             "user" => user
+           }),
+         activities <-
+           activities |> Enum.filter(fn %{id: aid} -> to_string(aid) != to_string(id) end),
+         activities <-
+           activities |> Enum.filter(fn %{data: %{"type" => type}} -> type == "Create" end),
+         grouped_activities <- Enum.group_by(activities, fn %{id: id} -> id < activity.id end) do
       result = %{
-        ancestors: StatusView.render("index.json", for: user, activities: grouped_activities[true] || [], as: :activity) |> Enum.reverse,
-        descendants: StatusView.render("index.json", for: user, activities: grouped_activities[false] || [], as: :activity) |> Enum.reverse,
+        ancestors:
+          StatusView.render(
+            "index.json",
+            for: user,
+            activities: grouped_activities[true] || [],
+            as: :activity
+          )
+          |> Enum.reverse(),
+        descendants:
+          StatusView.render(
+            "index.json",
+            for: user,
+            activities: grouped_activities[false] || [],
+            as: :activity
+          )
+          |> Enum.reverse()
       }
 
       json(conn, result)
@@ -209,12 +270,13 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   end
 
   def post_status(%{assigns: %{user: user}} = conn, %{"status" => _} = params) do
-    params = params
-    |> Map.put("in_reply_to_status_id", params["in_reply_to_id"])
-    |> Map.put("no_attachment_links", true)
+    params =
+      params
+      |> Map.put("in_reply_to_status_id", params["in_reply_to_id"])
+      |> Map.put("no_attachment_links", true)
 
     {:ok, activity} = CommonAPI.post(user, params)
-    render conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity}
+    render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
   end
 
   def delete_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
@@ -230,30 +292,39 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
 
   def reblog_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
     with {:ok, announce, _activity} = CommonAPI.repeat(ap_id_or_id, user) do
-      render conn, StatusView, "status.json", %{activity: announce, for: user, as: :activity}
+      render(conn, StatusView, "status.json", %{activity: announce, for: user, as: :activity})
+    end
+  end
+
+  def unreblog_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
+    with {:ok, _, %{data: %{"id" => id}}} = CommonAPI.unrepeat(ap_id_or_id, user),
+         %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
+      render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
     end
   end
 
   def fav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
     with {:ok, _fav, %{data: %{"id" => id}}} = CommonAPI.favorite(ap_id_or_id, user),
          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
-      render conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity}
+      render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
     end
   end
 
   def unfav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
     with {:ok, %{data: %{"id" => id}}} = CommonAPI.unfavorite(ap_id_or_id, user),
          %Activity{} = activity <- Activity.get_create_activity_by_object_ap_id(id) do
-      render conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity}
+      render(conn, StatusView, "status.json", %{activity: activity, for: user, as: :activity})
     end
   end
 
   def notifications(%{assigns: %{user: user}} = conn, params) do
     notifications = Notification.for_user(user, params)
-    result = Enum.map(notifications, fn x ->
-      render_notification(user, x)
-    end)
-    |> Enum.filter(&(&1))
+
+    result =
+      Enum.map(notifications, fn x ->
+        render_notification(user, x)
+      end)
+      |> Enum.filter(& &1)
 
     conn
     |> add_link_headers(:notifications, notifications)
@@ -267,7 +338,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       {:error, reason} ->
         conn
         |> put_resp_content_type("application/json")
-        |> send_resp(403, Poison.encode!(%{"error" => reason}))
+        |> send_resp(403, Jason.encode!(%{"error" => reason}))
     end
   end
 
@@ -283,33 +354,32 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       {:error, reason} ->
         conn
         |> put_resp_content_type("application/json")
-        |> send_resp(403, Poison.encode!(%{"error" => reason}))
+        |> send_resp(403, Jason.encode!(%{"error" => reason}))
     end
   end
 
   def relationships(%{assigns: %{user: user}} = conn, %{"id" => id}) do
     id = List.wrap(id)
-    q = from u in User,
-      where: u.id in ^id
+    q = from(u in User, where: u.id in ^id)
     targets = Repo.all(q)
-    render conn, AccountView, "relationships.json", %{user: user, targets: targets}
+    render(conn, AccountView, "relationships.json", %{user: user, targets: targets})
   end
 
   def upload(%{assigns: %{user: _}} = conn, %{"file" => file}) do
     with {:ok, object} <- ActivityPub.upload(file) do
-      data = object.data
-      |> Map.put("id", object.id)
+      data =
+        object.data
+        |> Map.put("id", object.id)
 
-      render conn, StatusView, "attachment.json", %{attachment: data}
+      render(conn, StatusView, "attachment.json", %{attachment: data})
     end
   end
 
   def favourited_by(conn, %{"id" => id}) do
     with %Activity{data: %{"object" => %{"likes" => likes}}} <- Repo.get(Activity, id) do
-      q = from u in User,
-        where: u.ap_id in ^likes
+      q = from(u in User, where: u.ap_id in ^likes)
       users = Repo.all(q)
-      render conn, AccountView, "accounts.json", %{users: users, as: :user}
+      render(conn, AccountView, "accounts.json", %{users: users, as: :user})
     else
       _ -> json(conn, [])
     end
@@ -317,26 +387,27 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
 
   def reblogged_by(conn, %{"id" => id}) do
     with %Activity{data: %{"object" => %{"announcements" => announces}}} <- Repo.get(Activity, id) do
-      q = from u in User,
-        where: u.ap_id in ^announces
+      q = from(u in User, where: u.ap_id in ^announces)
       users = Repo.all(q)
-      render conn, AccountView, "accounts.json", %{users: users, as: :user}
+      render(conn, AccountView, "accounts.json", %{users: users, as: :user})
     else
       _ -> json(conn, [])
     end
   end
 
-  # TODO: Link headers
   def hashtag_timeline(%{assigns: %{user: user}} = conn, params) do
-    params = params
-    |> Map.put("type", "Create")
-    |> Map.put("local_only", !!params["local"])
-    |> Map.put("blocking_user", user)
+    params =
+      params
+      |> Map.put("type", "Create")
+      |> Map.put("local_only", !!params["local"])
+      |> Map.put("blocking_user", user)
 
-    activities = ActivityPub.fetch_public_activities(params)
-    |> Enum.reverse
+    activities =
+      ActivityPub.fetch_public_activities(params)
+      |> Enum.reverse()
 
     conn
+    |> add_link_headers(:hashtag_timeline, activities, params["tag"])
     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
   end
 
@@ -344,14 +415,14 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   def followers(conn, %{"id" => id}) do
     with %User{} = user <- Repo.get(User, id),
          {:ok, followers} <- User.get_followers(user) do
-      render conn, AccountView, "accounts.json", %{users: followers, as: :user}
+      render(conn, AccountView, "accounts.json", %{users: followers, as: :user})
     end
   end
 
   def following(conn, %{"id" => id}) do
     with %User{} = user <- Repo.get(User, id),
          {:ok, followers} <- User.get_friends(user) do
-      render conn, AccountView, "accounts.json", %{users: followers, as: :user}
+      render(conn, AccountView, "accounts.json", %{users: followers, as: :user})
     end
   end
 
@@ -359,12 +430,12 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     with %User{} = followed <- Repo.get(User, id),
          {:ok, follower} <- User.follow(follower, followed),
          {:ok, _activity} <- ActivityPub.follow(follower, followed) do
-      render conn, AccountView, "relationship.json", %{user: follower, target: followed}
+      render(conn, AccountView, "relationship.json", %{user: follower, target: followed})
     else
       {:error, message} ->
         conn
         |> put_resp_content_type("application/json")
-        |> send_resp(403, Poison.encode!(%{"error" => message}))
+        |> send_resp(403, Jason.encode!(%{"error" => message}))
     end
   end
 
@@ -372,56 +443,58 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     with %User{} = followed <- Repo.get_by(User, nickname: uri),
          {:ok, follower} <- User.follow(follower, followed),
          {:ok, _activity} <- ActivityPub.follow(follower, followed) do
-      render conn, AccountView, "account.json", %{user: followed}
+      render(conn, AccountView, "account.json", %{user: followed})
     else
       {:error, message} ->
         conn
         |> put_resp_content_type("application/json")
-        |> send_resp(403, Poison.encode!(%{"error" => message}))
+        |> send_resp(403, Jason.encode!(%{"error" => message}))
     end
   end
 
   # TODO: Clean up and unify
   def unfollow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
     with %User{} = followed <- Repo.get(User, id),
-         { :ok, follower, follow_activity } <- User.unfollow(follower, followed),
-         { :ok, _activity } <- ActivityPub.insert(%{
-           "type" => "Undo",
-           "actor" => follower.ap_id,
-           "object" => follow_activity.data["id"] # get latest Follow for these users
-         }) do
-      render conn, AccountView, "relationship.json", %{user: follower, target: followed}
+         {:ok, follower, follow_activity} <- User.unfollow(follower, followed),
+         {:ok, _activity} <-
+           ActivityPub.insert(%{
+             "type" => "Undo",
+             "actor" => follower.ap_id,
+             # get latest Follow for these users
+             "object" => follow_activity.data["id"]
+           }) do
+      render(conn, AccountView, "relationship.json", %{user: follower, target: followed})
     end
   end
 
   def block(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
     with %User{} = blocked <- Repo.get(User, id),
          {:ok, blocker} <- User.block(blocker, blocked) do
-      render conn, AccountView, "relationship.json", %{user: blocker, target: blocked}
+      render(conn, AccountView, "relationship.json", %{user: blocker, target: blocked})
     else
       {:error, message} ->
         conn
         |> put_resp_content_type("application/json")
-        |> send_resp(403, Poison.encode!(%{"error" => message}))
+        |> send_resp(403, Jason.encode!(%{"error" => message}))
     end
   end
 
   def unblock(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
     with %User{} = blocked <- Repo.get(User, id),
          {:ok, blocker} <- User.unblock(blocker, blocked) do
-      render conn, AccountView, "relationship.json", %{user: blocker, target: blocked}
+      render(conn, AccountView, "relationship.json", %{user: blocker, target: blocked})
     else
       {:error, message} ->
         conn
         |> put_resp_content_type("application/json")
-        |> send_resp(403, Poison.encode!(%{"error" => message}))
+        |> send_resp(403, Jason.encode!(%{"error" => message}))
     end
   end
 
   # TODO: Use proper query
   def blocks(%{assigns: %{user: user}} = conn, _) do
     with blocked_users <- user.info["blocks"] || [],
-         accounts <- Enum.map(blocked_users, fn (ap_id) -> User.get_cached_by_ap_id(ap_id) end) do
+         accounts <- Enum.map(blocked_users, fn ap_id -> User.get_cached_by_ap_id(ap_id) end) do
       res = AccountView.render("accounts.json", users: accounts, for: user, as: :user)
       json(conn, res)
     end
@@ -430,24 +503,47 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
     accounts = User.search(query, params["resolve"] == "true")
 
-    fetched = if Regex.match?(~r/https?:/, query) do
-      with {:ok, activities} <- OStatus.fetch_activity_from_url(query) do
-        activities
-      else
-        _e -> []
-      end
-    end || []
+    fetched =
+      if Regex.match?(~r/https?:/, query) do
+        with {:ok, activities} <- OStatus.fetch_activity_from_url(query) do
+          activities
+          |> Enum.filter(fn
+            %{data: %{"type" => "Create"}} -> true
+            _ -> false
+          end)
+        else
+          _e -> []
+        end
+      end || []
+
+    q =
+      from(
+        a in Activity,
+        where: fragment("?->>'type' = 'Create'", a.data),
+        where: "https://www.w3.org/ns/activitystreams#Public" in a.recipients,
+        where:
+          fragment(
+            "to_tsvector('english', ?->'object'->>'content') @@ plainto_tsquery('english', ?)",
+            a.data,
+            ^query
+          ),
+        limit: 20,
+        order_by: [desc: :inserted_at]
+      )
 
-    q = from a in Activity,
-      where: fragment("?->>'type' = 'Create'", a.data),
-      where: fragment("to_tsvector('english', ?->'object'->>'content') @@ plainto_tsquery('english', ?)", a.data, ^query),
-      limit: 20
     statuses = Repo.all(q) ++ fetched
 
+    tags =
+      String.split(query)
+      |> Enum.uniq()
+      |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
+      |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
+
     res = %{
       "accounts" => AccountView.render("accounts.json", users: accounts, for: user, as: :user),
-      "statuses" => StatusView.render("index.json", activities: statuses, for: user, as: :activity),
-      "hashtags" => []
+      "statuses" =>
+        StatusView.render("index.json", activities: statuses, for: user, as: :activity),
+      "hashtags" => tags
     }
 
     json(conn, res)
@@ -462,93 +558,104 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   end
 
   def favourites(%{assigns: %{user: user}} = conn, _) do
-    params = conn
-    |> Map.put("type", "Create")
-    |> Map.put("favorited_by", user.ap_id)
-    |> Map.put("blocking_user", user)
+    params =
+      %{}
+      |> Map.put("type", "Create")
+      |> Map.put("favorited_by", user.ap_id)
+      |> Map.put("blocking_user", user)
 
-    activities = ActivityPub.fetch_activities([], params)
-    |> Enum.reverse
+    activities =
+      ActivityPub.fetch_public_activities(params)
+      |> Enum.reverse()
 
     conn
     |> render(StatusView, "index.json", %{activities: activities, for: user, as: :activity})
   end
 
   def index(%{assigns: %{user: user}} = conn, _params) do
-    token = conn
-    |> get_session(:oauth_token)
+    token =
+      conn
+      |> get_session(:oauth_token)
 
     if user && token do
       mastodon_emoji = mastodonized_emoji()
       accounts = Map.put(%{}, user.id, AccountView.render("account.json", %{user: user}))
-      initial_state = %{
-        meta: %{
-          streaming_api_base_url: String.replace(Pleroma.Web.Endpoint.static_url(), "http", "ws"),
-          access_token: token,
-          locale: "en",
-          domain: Pleroma.Web.Endpoint.host(),
-          admin: "1",
-          me: "#{user.id}",
-          unfollow_modal: false,
-          boost_modal: false,
-          delete_modal: true,
-          auto_play_gif: false,
-          reduce_motion: false
-        },
-        compose: %{
-          me: "#{user.id}",
-          default_privacy: "public",
-          default_sensitive: false
-        },
-        media_attachments: %{
-          accept_content_types: [
-            ".jpg",
-            ".jpeg",
-            ".png",
-            ".gif",
-            ".webm",
-            ".mp4",
-            ".m4v",
-            "image\/jpeg",
-            "image\/png",
-            "image\/gif",
-            "video\/webm",
-            "video\/mp4"
-          ]
-        },
-        settings: %{
-          onboarded: true,
-          home: %{
-            shows: %{
-              reblog: true,
-              reply: true
-            }
+
+      initial_state =
+        %{
+          meta: %{
+            streaming_api_base_url:
+              String.replace(Pleroma.Web.Endpoint.static_url(), "http", "ws"),
+            access_token: token,
+            locale: "en",
+            domain: Pleroma.Web.Endpoint.host(),
+            admin: "1",
+            me: "#{user.id}",
+            unfollow_modal: false,
+            boost_modal: false,
+            delete_modal: true,
+            auto_play_gif: false,
+            reduce_motion: false
           },
-          notifications: %{
-            alerts: %{
-              follow: true,
-              favourite: true,
-              reblog: true,
-              mention: true
-            },
-            shows: %{
-              follow: true,
-              favourite: true,
-              reblog: true,
-              mention: true
-            },
-            sounds: %{
-              follow: true,
-              favourite: true,
-              reblog: true,
-              mention: true
-            }
-          }
-        },
-        push_subscription: nil,
-        accounts: accounts,
-        custom_emojis: mastodon_emoji
-      } |> Poison.encode!
+          compose: %{
+            me: "#{user.id}",
+            default_privacy: "public",
+            default_sensitive: false
+          },
+          media_attachments: %{
+            accept_content_types: [
+              ".jpg",
+              ".jpeg",
+              ".png",
+              ".gif",
+              ".webm",
+              ".mp4",
+              ".m4v",
+              "image\/jpeg",
+              "image\/png",
+              "image\/gif",
+              "video\/webm",
+              "video\/mp4"
+            ]
+          },
+          settings:
+            Map.get(user.info, "settings") ||
+              %{
+                onboarded: true,
+                home: %{
+                  shows: %{
+                    reblog: true,
+                    reply: true
+                  }
+                },
+                notifications: %{
+                  alerts: %{
+                    follow: true,
+                    favourite: true,
+                    reblog: true,
+                    mention: true
+                  },
+                  shows: %{
+                    follow: true,
+                    favourite: true,
+                    reblog: true,
+                    mention: true
+                  },
+                  sounds: %{
+                    follow: true,
+                    favourite: true,
+                    reblog: true,
+                    mention: true
+                  }
+                }
+              },
+          push_subscription: nil,
+          accounts: accounts,
+          custom_emojis: mastodon_emoji,
+          char_limit: Keyword.get(@instance, :limit)
+        }
+        |> Jason.encode!()
+
       conn
       |> put_layout(false)
       |> render(MastodonView, "index.html", %{initial_state: initial_state})
@@ -558,6 +665,19 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     end
   end
 
+  def put_settings(%{assigns: %{user: user}} = conn, %{"data" => settings} = _params) do
+    with new_info <- Map.put(user.info, "settings", settings),
+         change <- User.info_changeset(user, %{info: new_info}),
+         {:ok, _user} <- User.update_and_set_cache(change) do
+      conn
+      |> json(%{})
+    else
+      e ->
+        conn
+        |> json(%{error: inspect(e)})
+    end
+  end
+
   def login(conn, _) do
     conn
     |> render(MastodonView, "login.html", %{error: false})
@@ -568,12 +688,18 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       {:ok, app}
     else
       _e ->
-        cs = App.register_changeset(%App{}, %{client_name: "Mastodon-Local", redirect_uris: ".", scopes: "read,write,follow"})
+        cs =
+          App.register_changeset(%App{}, %{
+            client_name: "Mastodon-Local",
+            redirect_uris: ".",
+            scopes: "read,write,follow"
+          })
+
         Repo.insert(cs)
     end
   end
 
-  def login_post(conn, %{"authorization" => %{ "name" => name, "password" => password}}) do
+  def login_post(conn, %{"authorization" => %{"name" => name, "password" => password}}) do
     with %User{} = user <- User.get_cached_by_nickname(name),
          true <- Pbkdf2.checkpw(password, user.password_hash),
          {:ok, app} <- get_or_make_app(),
@@ -597,8 +723,9 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
 
   def relationship_noop(%{assigns: %{user: user}} = conn, %{"id" => id}) do
     Logger.debug("Unimplemented, returning unmodified relationship")
+
     with %User{} = target <- Repo.get(User, id) do
-      render conn, AccountView, "relationship.json", %{user: user, target: target}
+      render(conn, AccountView, "relationship.json", %{user: user, target: target})
     end
   end
 
@@ -607,22 +734,60 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
     json(conn, [])
   end
 
+  def empty_object(conn, _) do
+    Logger.debug("Unimplemented, returning an empty object")
+    json(conn, %{})
+  end
+
   def render_notification(user, %{id: id, activity: activity, inserted_at: created_at} = _params) do
     actor = User.get_cached_by_ap_id(activity.data["actor"])
-    created_at = NaiveDateTime.to_iso8601(created_at)
-    |> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
+
+    created_at =
+      NaiveDateTime.to_iso8601(created_at)
+      |> String.replace(~r/(\.\d+)?$/, ".000Z", global: false)
+
     case activity.data["type"] do
       "Create" ->
-        %{id: id, type: "mention", created_at: created_at, account: AccountView.render("account.json", %{user: actor}), status: StatusView.render("status.json", %{activity: activity, for: user})}
+        %{
+          id: id,
+          type: "mention",
+          created_at: created_at,
+          account: AccountView.render("account.json", %{user: actor}),
+          status: StatusView.render("status.json", %{activity: activity, for: user})
+        }
+
       "Like" ->
         liked_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
-        %{id: id, type: "favourite", created_at: created_at, account: AccountView.render("account.json", %{user: actor}), status: StatusView.render("status.json", %{activity: liked_activity, for: user})}
+
+        %{
+          id: id,
+          type: "favourite",
+          created_at: created_at,
+          account: AccountView.render("account.json", %{user: actor}),
+          status: StatusView.render("status.json", %{activity: liked_activity, for: user})
+        }
+
       "Announce" ->
         announced_activity = Activity.get_create_activity_by_object_ap_id(activity.data["object"])
-        %{id: id, type: "reblog", created_at: created_at, account: AccountView.render("account.json", %{user: actor}), status: StatusView.render("status.json", %{activity: announced_activity, for: user})}
+
+        %{
+          id: id,
+          type: "reblog",
+          created_at: created_at,
+          account: AccountView.render("account.json", %{user: actor}),
+          status: StatusView.render("status.json", %{activity: announced_activity, for: user})
+        }
+
       "Follow" ->
-        %{id: id, type: "follow", created_at: created_at, account: AccountView.render("account.json", %{user: actor})}
-      _ -> nil
+        %{
+          id: id,
+          type: "follow",
+          created_at: created_at,
+          account: AccountView.render("account.json", %{user: actor})
+        }
+
+      _ ->
+        nil
     end
   end
 end