Merge branch 'static-accept-missing' into 'develop'

[akkoma] / lib / pleroma / captcha / captcha.ex

diff --git a/lib/pleroma/captcha/captcha.ex b/lib/pleroma/captcha/captcha.ex
index cecb5b5a786e1b9d0b7314fdaf43ca62e4ebe3c6..cf75c3adc3bb0b41b5c74e82c461d6f312fb2875 100644 (file)
--- a/lib/pleroma/captcha/captcha.ex
+++ b/lib/pleroma/captcha/captcha.ex
@@ -1,8 +1,10 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Captcha do
+  import Pleroma.Web.Gettext
+
   alias Calendar.DateTime
   alias Plug.Crypto.KeyGenerator
   alias Plug.Crypto.MessageEncryptor
@@ -10,7 +12,7 @@ defmodule Pleroma.Captcha do
   use GenServer
 
   @doc false
-  def start_link do
+  def start_link(_) do
     GenServer.start_link(__MODULE__, [], name: __MODULE__)
   end
 
@@ -48,7 +50,7 @@ defmodule Pleroma.Captcha do
       token = new_captcha[:token]
       secret = KeyGenerator.generate(secret_key_base, token <> "_encrypt")
       sign_secret = KeyGenerator.generate(secret_key_base, token <> "_sign")
-      # Basicallty copy what Phoenix.Token does here, add the time to
+      # Basically copy what Phoenix.Token does here, add the time to
       # the actual data and make it a binary to then encrypt it
       encrypted_captcha_answer =
         %{
@@ -60,7 +62,7 @@ defmodule Pleroma.Captcha do
 
       {
         :reply,
-        # Repalce the answer with the encrypted answer
+        # Replace the answer with the encrypted answer
         %{new_captcha | answer_data: encrypted_captcha_answer},
         state
       }
@@ -73,20 +75,22 @@ defmodule Pleroma.Captcha do
     secret = KeyGenerator.generate(secret_key_base, token <> "_encrypt")
     sign_secret = KeyGenerator.generate(secret_key_base, token <> "_sign")
 
-    # If the time found is less than (current_time - seconds_valid), then the time has already passed.
+    # If the time found is less than (current_time-seconds_valid) then the time has already passed
     # Later we check that the time found is more than the presumed invalidatation time, that means
     # that the data is still valid and the captcha can be checked
     seconds_valid = Pleroma.Config.get!([Pleroma.Captcha, :seconds_valid])
     valid_if_after = DateTime.subtract!(DateTime.now_utc(), seconds_valid)
 
     result =
-      with {:ok, data} <- MessageEncryptor.decrypt(answer_data, secret, sign_secret),
+      with false <- is_nil(answer_data),
+           {:ok, data} <- MessageEncryptor.decrypt(answer_data, secret, sign_secret),
            %{at: at, answer_data: answer_md5} <- :erlang.binary_to_term(data) do
         try do
-          if DateTime.before?(at, valid_if_after), do: throw({:error, "CAPTCHA expired"})
+          if DateTime.before?(at, valid_if_after),
+            do: throw({:error, dgettext("errors", "CAPTCHA expired")})
 
           if not is_nil(Cachex.get!(:used_captcha_cache, token)),
-            do: throw({:error, "CAPTCHA already used"})
+            do: throw({:error, dgettext("errors", "CAPTCHA already used")})
 
           res = method().validate(token, captcha, answer_md5)
           # Throw if an error occurs
@@ -101,7 +105,7 @@ defmodule Pleroma.Captcha do
           :throw, e -> e
         end
       else
-        _ -> {:error, "Invalid answer data"}
+        _ -> {:error, dgettext("errors", "Invalid answer data")}
       end
 
     {:reply, result, state}