fix warnings

lib/pleroma/user.ex

@@ -212,7 +212,7 @@ defmodule Pleroma.User do
   end
 
   def maybe_direct_follow(%User{} = follower, %User{} = followed) do
-    if !User.ap_enabled?(followed) do
+    if not User.ap_enabled?(followed) do
       follow(follower, followed)
     else
       {:ok, follower}
@@ -736,7 +736,8 @@ defmodule Pleroma.User do
         source_data: %{"publicKey" => %{"publicKeyPem" => public_key_pem}}
       }) do
     key =
-      :public_key.pem_decode(public_key_pem)
+      public_key_pem
+      |> :public_key.pem_decode()
       |> hd()
       |> :public_key.pem_entry_decode()
 
@@ -774,13 +775,10 @@ defmodule Pleroma.User do
   def ap_enabled?(%User{info: info}), do: info.ap_enabled
   def ap_enabled?(_), do: false
 
-  def get_or_fetch(uri_or_nickname) do
-    if String.starts_with?(uri_or_nickname, "http") do
-      get_or_fetch_by_ap_id(uri_or_nickname)
-    else
-      get_or_fetch_by_nickname(uri_or_nickname)
-    end
-  end
+  @doc "Gets or fetch a user by uri or nickname."
+  @spec get_or_fetch(String.t()) :: User.t()
+  def get_or_fetch("http" <> _host = uri), do: get_or_fetch_by_ap_id(uri)
+  def get_or_fetch(nickname), do: get_or_fetch_by_nickname(nickname)
 
   # wait a period of time and return newest version of the User structs
   # this is because we have synchronous follow APIs and need to simulate them
@@ -821,7 +819,9 @@ defmodule Pleroma.User do
         {String.trim(name, ":"), url}
       end)
 
-    CommonUtils.format_input(bio, mentions, tags, "text/plain") |> Formatter.emojify(emoji)
+    bio
+    |> CommonUtils.format_input(mentions, tags, "text/plain")
+    |> Formatter.emojify(emoji)
   end
 
   def tag(user_identifiers, tags) when is_list(user_identifiers) do

lib/pleroma/web/common_api/utils.ex

@@ -1,11 +1,12 @@
 defmodule Pleroma.Web.CommonAPI.Utils do
-  alias Pleroma.{Repo, Object, Formatter, Activity}
+  alias Calendar.Strftime
+  alias Comeonin.Pbkdf2
+  alias Pleroma.{Activity, Formatter, Object, Repo}
+  alias Pleroma.User
+  alias Pleroma.Web
   alias Pleroma.Web.ActivityPub.Utils
   alias Pleroma.Web.Endpoint
   alias Pleroma.Web.MediaProxy
-  alias Pleroma.User
-  alias Calendar.Strftime
-  alias Comeonin.Pbkdf2
 
   # This is a hack for twidere.
   def get_by_id_or_ap_id(id) do
@@ -148,7 +149,7 @@ defmodule Pleroma.Web.CommonAPI.Utils do
       |> Enum.sort_by(fn {tag, _} -> -String.length(tag) end)
 
     Enum.reduce(tags, text, fn {full, tag}, text ->
-      url = "<a href='#{Pleroma.Web.base_url()}/tag/#{tag}' rel='tag'>##{tag}</a>"
+      url = "<a href='#{Web.base_url()}/tag/#{tag}' rel='tag'>##{tag}</a>"
       String.replace(text, full, url)
     end)
   end

lib/pleroma/web/salmon/salmon.ex

@@ -180,7 +180,7 @@ defmodule Pleroma.Web.Salmon do
     "Undo",
     "Delete"
   ]
-  def publish(user, activity, poster \\ &@httpoison.post/4)
+  def publish(user, activity, poster \\ &@httpoison.post/3)
 
   def publish(%{info: %{keys: keys}} = user, %{data: %{"type" => type}} = activity, poster)
       when type in @supported_activities do

lib/pleroma/web/web_finger/web_finger.ex

@@ -256,8 +256,7 @@ defmodule Pleroma.Web.WebFinger do
     with response <-
            @httpoison.get(
              address,
-             [Accept: "application/xrd+xml,application/jrd+json"],
-             follow_redirect: true
+             Accept: "application/xrd+xml,application/jrd+json"
            ),
          {:ok, %{status: status, body: body}} when status in 200..299 <- response do
       doc = XML.parse_document(body)

lib/pleroma/web/xml/xml.ex

@@ -25,7 +25,7 @@ defmodule Pleroma.Web.XML do
       {doc, _rest} =
         text
         |> :binary.bin_to_list()
-        |> :xmerl_scan.string()
+        |> :xmerl_scan.string(quiet: true)
 
       doc
     rescue