Make credo happy

.credo.exs

@@ -57,7 +57,7 @@
 
         # For some checks, like AliasUsage, you can only customize the priority
         # Priority values are: `low, normal, high, higher`
-        {Credo.Check.Design.AliasUsage, priority: :low},
+        {Credo.Check.Design.AliasUsage, priority: :low, if_called_more_often_than: 3},
 
         # For others you can set parameters
 

lib/mix/tasks/pleroma/user.ex

@@ -211,7 +211,7 @@ def run(["unsubscribe", nickname]) do
 
       user = Repo.get(User, user.id)
 
-      if length(user.following) == 0 do
+      if Enum.empty?(user.following) do
         Mix.shell().info("Successfully unsubscribed all followers from #{user.nickname}")
       end
     else

lib/pleroma/stats.ex

@@ -23,7 +23,7 @@ def get_peers do
   def schedule_update do
     spawn(fn ->
       # 1 hour
-      Process.sleep(1000 * 60 * 60 * 1)
+      Process.sleep(1000 * 60 * 60)
       schedule_update()
     end)
 

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -119,7 +119,7 @@ def stream_out(activity) do
           activity.data["object"]
           |> Map.get("tag", [])
           |> Enum.filter(fn tag -> is_bitstring(tag) end)
-          |> Enum.map(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end)
+          |> Enum.each(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end)
 
           if activity.data["object"]["attachment"] != [] do
             Pleroma.Web.Streamer.stream("public:media", activity)

lib/pleroma/web/common_api/utils.ex

@@ -6,8 +6,7 @@ defmodule Pleroma.Web.CommonAPI.Utils do
   alias Calendar.Strftime
   alias Comeonin.Pbkdf2
   alias Pleroma.{Activity, Formatter, Object, Repo}
-  alias Pleroma.User
-  alias Pleroma.Web
+  alias Pleroma.{User, Web}
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.Endpoint
   alias Pleroma.Web.MediaProxy

lib/pleroma/web/federator/federator.ex

@@ -25,7 +25,7 @@ def init(args) do
   def start_link do
     spawn(fn ->
       # 1 minute
-      Process.sleep(1000 * 60 * 1)
+      Process.sleep(1000 * 60)
       enqueue(:refresh_subscriptions, nil)
     end)
 
@@ -197,7 +197,6 @@ def handle_cast({:enqueue, type, payload, _priority}, state) do
   end
 
   def handle_cast(m, state) do
-    IO.inspect("Unknown: #{inspect(m)}, #{inspect(state)}")
     {:noreply, state}
   end
 

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -4,23 +4,22 @@
 
 defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
   use Pleroma.Web, :controller
-  alias Pleroma.{Repo, Object, Activity, User, Notification, Stats}
+  alias Pleroma.{Activity, Config, Filter, Notification, Object, Repo, Stats, User}
   alias Pleroma.Web
+  alias Pleroma.Web.{CommonAPI, MediaProxy, Push}
+  alias Push.Subscription
 
   alias Pleroma.Web.MastodonAPI.{
-    StatusView,
     AccountView,
-    MastodonView,
-    ListView,
     FilterView,
-    PushSubscriptionView
+    ListView,
+    MastodonView,
+    PushSubscriptionView,
+    StatusView
   }
 
-  alias Pleroma.Web.ActivityPub.ActivityPub
-  alias Pleroma.Web.ActivityPub.Utils
-  alias Pleroma.Web.CommonAPI
-  alias Pleroma.Web.OAuth.{Authorization, Token, App}
-  alias Pleroma.Web.MediaProxy
+  alias Pleroma.Web.ActivityPub.{ActivityPub, Utils}
+  alias Pleroma.Web.OAuth.{App, Authorization, Token}
 
   import Ecto.Query
   require Logger
@@ -131,7 +130,7 @@ def user(%{assigns: %{user: for_user}} = conn, %{"id" => id}) do
   @mastodon_api_level "2.5.0"
 
   def masto_instance(conn, _params) do
-    instance = Pleroma.Config.get(:instance)
+    instance = Config.get(:instance)
 
     response = %{
       uri: Web.base_url(),
@@ -227,7 +226,8 @@ def home_timeline(%{assigns: %{user: user}} = conn, params) do
       |> Map.put("user", user)
 
     activities =
-      ActivityPub.fetch_activities([user.ap_id | user.following], params)
+      [user.ap_id | user.following]
+      |> ActivityPub.fetch_activities(params)
       |> ActivityPub.contain_timeline(user)
       |> Enum.reverse()
 
@@ -240,14 +240,12 @@ def home_timeline(%{assigns: %{user: user}} = conn, params) do
   def public_timeline(%{assigns: %{user: user}} = conn, params) do
     local_only = params["local"] in [true, "True", "true", "1"]
 
-    params =
+    activities =
       params
       |> Map.put("type", ["Create", "Announce"])
       |> Map.put("local_only", local_only)
       |> Map.put("blocking_user", user)
-
-    activities =
-      ActivityPub.fetch_public_activities(params)
+      |> ActivityPub.fetch_public_activities()
       |> Enum.reverse()
 
     conn
@@ -316,6 +314,7 @@ def get_context(%{assigns: %{user: user}} = conn, %{"id" => id}) do
             as: :activity
           )
           |> Enum.reverse(),
+        # credo:disable-for-previous-line Credo.Check.Refactor.PipeChainStart
         descendants:
           StatusView.render(
             "index.json",
@@ -324,6 +323,7 @@ def get_context(%{assigns: %{user: user}} = conn, %{"id" => id}) do
             as: :activity
           )
           |> Enum.reverse()
+        # credo:disable-for-previous-line Credo.Check.Refactor.PipeChainStart
       }
 
       json(conn, result)
@@ -451,9 +451,8 @@ 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)
+      notifications
+      |> Enum.map(fn x -> render_notification(user, x) end)
       |> Enum.filter(& &1)
 
     conn
@@ -582,7 +581,7 @@ def hashtag_timeline(%{assigns: %{user: user}} = conn, params) do
         []
         |> Enum.map(&String.downcase(&1))
 
-    query_params =
+    activities =
       params
       |> Map.put("type", "Create")
       |> Map.put("local_only", local_only)
@@ -590,9 +589,7 @@ def hashtag_timeline(%{assigns: %{user: user}} = conn, params) do
       |> Map.put("tag", tags)
       |> Map.put("tag_all", tag_all)
       |> Map.put("tag_reject", tag_reject)
-
-    activities =
-      ActivityPub.fetch_public_activities(query_params)
+      |> ActivityPub.fetch_public_activities()
       |> Enum.reverse()
 
     conn
@@ -692,7 +689,7 @@ def follow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
          {:ok, _activity} <- ActivityPub.follow(follower, followed),
          {:ok, follower, followed} <-
            User.wait_and_refresh(
-             Pleroma.Config.get([:activitypub, :follow_handshake_timeout]),
+             Config.get([:activitypub, :follow_handshake_timeout]),
              follower,
              followed
            ) do
@@ -821,7 +818,8 @@ def search2(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
     tags_path = Web.base_url() <> "/tag/"
 
     tags =
-      String.split(query)
+      query
+      |> String.split()
       |> Enum.uniq()
       |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
       |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
@@ -843,7 +841,8 @@ def search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) do
     statuses = status_search(user, query)
 
     tags =
-      String.split(query)
+      query
+      |> String.split()
       |> Enum.uniq()
       |> Enum.filter(fn tag -> String.starts_with?(tag, "#") end)
       |> Enum.map(fn tag -> String.slice(tag, 1..-1) end)
@@ -867,14 +866,12 @@ def account_search(%{assigns: %{user: user}} = conn, %{"q" => query} = params) d
   end
 
   def favourites(%{assigns: %{user: user}} = conn, params) do
-    params =
+    activities =
       params
       |> Map.put("type", "Create")
       |> Map.put("favorited_by", user.ap_id)
       |> Map.put("blocking_user", user)
-
-    activities =
-      ActivityPub.fetch_public_activities(params)
+      |> ActivityPub.fetch_public_activities()
       |> Enum.reverse()
 
     conn
@@ -990,12 +987,10 @@ def list_timeline(%{assigns: %{user: user}} = conn, %{"list_id" => id} = params)
 
       # we must filter the following list for the user to avoid leaking statuses the user
       # does not actually have permission to see (for more info, peruse security issue #270).
-      following_to =
+      activities =
         following
         |> Enum.filter(fn x -> x in user.following end)
-
-      activities =
-        ActivityPub.fetch_activities_bounded(following_to, following, params)
+        |> ActivityPub.fetch_activities_bounded(following, params)
         |> Enum.reverse()
 
       conn
@@ -1017,7 +1012,7 @@ def index(%{assigns: %{user: user}} = conn, _params) do
     if user && token do
       mastodon_emoji = mastodonized_emoji()
 
-      limit = Pleroma.Config.get([:instance, :limit])
+      limit = Config.get([:instance, :limit])
 
       accounts =
         Map.put(%{}, user.id, AccountView.render("account.json", %{user: user, for: user}))
@@ -1041,8 +1036,8 @@ def index(%{assigns: %{user: user}} = conn, _params) do
             max_toot_chars: limit
           },
           rights: %{
-            delete_others_notice: !!user.info.is_moderator,
-            admin: !!user.info.is_admin
+            delete_others_notice: present?(user.info.is_moderator),
+            admin: present?(user.info.is_admin)
           },
           compose: %{
             me: "#{user.id}",
@@ -1234,7 +1229,7 @@ def render_notification(user, %{id: id, activity: activity, inserted_at: created
   end
 
   def get_filters(%{assigns: %{user: user}} = conn, _) do
-    filters = Pleroma.Filter.get_filters(user)
+    filters = Filter.get_filters(user)
     res = FilterView.render("filters.json", filters: filters)
     json(conn, res)
   end
@@ -1243,7 +1238,7 @@ def create_filter(
         %{assigns: %{user: user}} = conn,
         %{"phrase" => phrase, "context" => context} = params
       ) do
-    query = %Pleroma.Filter{
+    query = %Filter{
       user_id: user.id,
       phrase: phrase,
       context: context,
@@ -1252,13 +1247,13 @@ def create_filter(
       # expires_at
     }
 
-    {:ok, response} = Pleroma.Filter.create(query)
+    {:ok, response} = Filter.create(query)
     res = FilterView.render("filter.json", filter: response)
     json(conn, res)
   end
 
   def get_filter(%{assigns: %{user: user}} = conn, %{"id" => filter_id}) do
-    filter = Pleroma.Filter.get(filter_id, user)
+    filter = Filter.get(filter_id, user)
     res = FilterView.render("filter.json", filter: filter)
     json(conn, res)
   end
@@ -1267,7 +1262,7 @@ def update_filter(
         %{assigns: %{user: user}} = conn,
         %{"phrase" => phrase, "context" => context, "id" => filter_id} = params
       ) do
-    query = %Pleroma.Filter{
+    query = %Filter{
       user_id: user.id,
       filter_id: filter_id,
       phrase: phrase,
@@ -1277,32 +1272,32 @@ def update_filter(
       # expires_at
     }
 
-    {:ok, response} = Pleroma.Filter.update(query)
+    {:ok, response} = Filter.update(query)
     res = FilterView.render("filter.json", filter: response)
     json(conn, res)
   end
 
   def delete_filter(%{assigns: %{user: user}} = conn, %{"id" => filter_id}) do
-    query = %Pleroma.Filter{
+    query = %Filter{
       user_id: user.id,
       filter_id: filter_id
     }
 
-    {:ok, _} = Pleroma.Filter.delete(query)
+    {:ok, _} = Filter.delete(query)
     json(conn, %{})
   end
 
   def create_push_subscription(%{assigns: %{user: user, token: token}} = conn, params) do
-    true = Pleroma.Web.Push.enabled()
-    Pleroma.Web.Push.Subscription.delete_if_exists(user, token)
-    {:ok, subscription} = Pleroma.Web.Push.Subscription.create(user, token, params)
+    true = Push.enabled()
+    Subscription.delete_if_exists(user, token)
+    {:ok, subscription} = Subscription.create(user, token, params)
     view = PushSubscriptionView.render("push_subscription.json", subscription: subscription)
     json(conn, view)
   end
 
   def get_push_subscription(%{assigns: %{user: user, token: token}} = conn, _params) do
-    true = Pleroma.Web.Push.enabled()
-    subscription = Pleroma.Web.Push.Subscription.get(user, token)
+    true = Push.enabled()
+    subscription = Subscription.get(user, token)
     view = PushSubscriptionView.render("push_subscription.json", subscription: subscription)
     json(conn, view)
   end
@@ -1311,15 +1306,15 @@ def update_push_subscription(
         %{assigns: %{user: user, token: token}} = conn,
         params
       ) do
-    true = Pleroma.Web.Push.enabled()
-    {:ok, subscription} = Pleroma.Web.Push.Subscription.update(user, token, params)
+    true = Push.enabled()
+    {:ok, subscription} = Subscription.update(user, token, params)
     view = PushSubscriptionView.render("push_subscription.json", subscription: subscription)
     json(conn, view)
   end
 
   def delete_push_subscription(%{assigns: %{user: user, token: token}} = conn, _params) do
-    true = Pleroma.Web.Push.enabled()
-    {:ok, _response} = Pleroma.Web.Push.Subscription.delete(user, token)
+    true = Push.enabled()
+    {:ok, _response} = Subscription.delete(user, token)
     json(conn, %{})
   end
 
@@ -1330,17 +1325,21 @@ def errors(conn, _) do
   end
 
   def suggestions(%{assigns: %{user: user}} = conn, _) do
-    suggestions = Pleroma.Config.get(:suggestions)
+    suggestions = Config.get(:suggestions)
 
     if Keyword.get(suggestions, :enabled, false) do
       api = Keyword.get(suggestions, :third_party_engine, "")
       timeout = Keyword.get(suggestions, :timeout, 5000)
       limit = Keyword.get(suggestions, :limit, 23)
 
-      host = Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host])
+      host = Config.get([Pleroma.Web.Endpoint, :url, :host])
 
       user = user.nickname
-      url = String.replace(api, "{{host}}", host) |> String.replace("{{user}}", user)
+
+      url =
+        api
+        |> String.replace("{{host}}", host)
+        |> String.replace("{{user}}", user)
 
       with {:ok, %{status: 200, body: body}} <-
              @httpoison.get(
@@ -1353,8 +1352,9 @@ def suggestions(%{assigns: %{user: user}} = conn, _) do
                ]
              ),
            {:ok, data} <- Jason.decode(body) do
-        data2 =
-          Enum.slice(data, 0, limit)
+        data =
+          data
+          |> Enum.slice(0, limit)
           |> Enum.map(fn x ->
             Map.put(
               x,
@@ -1373,7 +1373,7 @@ def suggestions(%{assigns: %{user: user}} = conn, _) do
           end)
 
         conn
-        |> json(data2)
+        |> json(data)
       else
         e -> Logger.error("Could not retrieve suggestions at fetch #{url}, #{inspect(e)}")
       end
@@ -1416,4 +1416,8 @@ def try_render(conn, _, _) do
     |> put_status(501)
     |> json(%{error: "Can't display this activity"})
   end
+
+  defp present?(nil), do: false
+  defp present?(false), do: false
+  defp present?(_), do: true
 end

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

@@ -4,11 +4,11 @@
 
 defmodule Pleroma.Web.MastodonAPI.AccountView do
   use Pleroma.Web, :view
-  alias Pleroma.User
-  alias Pleroma.Web.MastodonAPI.AccountView
+
+  alias Pleroma.{HTML, User}
   alias Pleroma.Web.CommonAPI.Utils
+  alias Pleroma.Web.MastodonAPI.AccountView
   alias Pleroma.Web.MediaProxy
-  alias Pleroma.HTML
 
   def render("accounts.json", %{users: users} = opts) do
     users

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

@@ -4,8 +4,8 @@
 
 defmodule Pleroma.Web.MastodonAPI.FilterView do
   use Pleroma.Web, :view
-  alias Pleroma.Web.MastodonAPI.FilterView
   alias Pleroma.Web.CommonAPI.Utils
+  alias Pleroma.Web.MastodonAPI.FilterView
 
   def render("filters.json", %{filters: filters} = opts) do
     render_many(filters, FilterView, "filter.json", opts)

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

@@ -5,14 +5,10 @@
 defmodule Pleroma.Web.MastodonAPI.StatusView do
   use Pleroma.Web, :view
 
-  alias Pleroma.Activity
-  alias Pleroma.HTML
-  alias Pleroma.Repo
-  alias Pleroma.User
+  alias Pleroma.{Activity, HTML, Repo, User}
   alias Pleroma.Web.CommonAPI.Utils
+  alias Pleroma.Web.MastodonAPI.{AccountView, StatusView}
   alias Pleroma.Web.MediaProxy
-  alias Pleroma.Web.MastodonAPI.AccountView
-  alias Pleroma.Web.MastodonAPI.StatusView
 
   # TODO: Add cached version.
   defp get_replied_to_activities(activities) do

lib/pleroma/web/mastodon_api/websocket_handler.ex

@@ -6,7 +6,7 @@ defmodule Pleroma.Web.MastodonAPI.WebsocketHandler do
   require Logger
 
   alias Pleroma.Web.OAuth.Token
-  alias Pleroma.{User, Repo}
+  alias Pleroma.{Repo, User}
 
   @behaviour :cowboy_websocket_handler
 

lib/pleroma/web/media_proxy/controller.ex

@@ -4,11 +4,12 @@
 
 defmodule Pleroma.Web.MediaProxy.MediaProxyController do
   use Pleroma.Web, :controller
-  alias Pleroma.{Web.MediaProxy, ReverseProxy}
+  alias Pleroma.ReverseProxy
+  alias Pleroma.Web.MediaProxy
 
   @default_proxy_opts [max_body_length: 25 * 1_048_576, http: [follow_redirect: true]]
 
-  def remote(conn, params = %{"sig" => sig64, "url" => url64}) do
+  def remote(conn, %{"sig" => sig64, "url" => url64} = params) do
     with config <- Pleroma.Config.get([:media_proxy], []),
          true <- Keyword.get(config, :enabled, false),
          {:ok, url} <- MediaProxy.decode_url(sig64, url64),

lib/pleroma/web/media_proxy/media_proxy.ex

@@ -9,7 +9,7 @@ def url(nil), do: nil
 
   def url(""), do: nil
 
-  def url(url = "/" <> _), do: url
+  def url("/" <> _ = url), do: url
 
   def url(url) do
     config = Application.get_env(:pleroma, :media_proxy, [])

lib/pleroma/web/nodeinfo/nodeinfo_controller.ex

@@ -5,10 +5,7 @@
 defmodule Pleroma.Web.Nodeinfo.NodeinfoController do
   use Pleroma.Web, :controller
 
-  alias Pleroma.Stats
-  alias Pleroma.Web
-  alias Pleroma.{User, Repo}
-  alias Pleroma.Config
+  alias Pleroma.{Config, Repo, Stats, User, Web}
   alias Pleroma.Web.ActivityPub.MRF
 
   plug(Pleroma.Web.FederatingPlug)
@@ -32,7 +29,7 @@ def schemas(conn, _params) do
 
   # returns a nodeinfo 2.0 map, since 2.1 just adds a repository field
   # under software.
-  def raw_nodeinfo() do
+  def raw_nodeinfo do
     instance = Application.get_env(:pleroma, :instance)
     media_proxy = Application.get_env(:pleroma, :media_proxy)
     suggestions = Application.get_env(:pleroma, :suggestions)
@@ -66,10 +63,8 @@ def raw_nodeinfo() do
       Config.get([:mrf_user_allowlist], [])
       |> Enum.into(%{}, fn {k, v} -> {k, length(v)} end)
 
-    mrf_transparency = Keyword.get(instance, :mrf_transparency)
-
     federation_response =
-      if mrf_transparency do
+      if Keyword.get(instance, :mrf_transparency) do
         %{
           mrf_policies: mrf_policies,
           mrf_simple: mrf_simple,

lib/pleroma/web/uploader_controller.ex

@@ -3,7 +3,7 @@ defmodule Pleroma.Web.UploaderController do
 
   alias Pleroma.Uploaders.Uploader
 
-  def callback(conn, params = %{"upload_path" => upload_path}) do
+  def callback(conn, %{"upload_path" => upload_path} = params) do
     process_callback(conn, :global.whereis_name({Uploader, upload_path}), params)
   end