fix(concern): fix BCrypt namespacing after Devise 3.5.2 update. Fixes #…

…333

app/models/devise_token_auth/concerns/user.rb

@@ -1,11 +1,13 @@
+require 'bcrypt'
+
 module DeviseTokenAuth::Concerns::User
   extend ActiveSupport::Concern
 
   def self.tokens_match?(token_hash, token)
     @token_equality_cache ||= {}
 
     key = "#{token_hash}/#{token}"
-    result = @token_equality_cache[key] ||= (BCrypt::Password.new(token_hash) == token)
+    result = @token_equality_cache[key] ||= (::BCrypt::Password.new(token_hash) == token)
     if @token_equality_cache.size > 10000
       @token_equality_cache = {}
     end
@@ -147,7 +149,7 @@ def token_can_be_reused?(token, client_id)
       Time.parse(updated_at) > Time.now - DeviseTokenAuth.batch_request_buffer_throttle and
 
       # ensure that the token is valid
-      BCrypt::Password.new(last_token) == token
+      ::BCrypt::Password.new(last_token) == token
     )
   end
 
@@ -157,7 +159,7 @@ def create_new_auth_token(client_id=nil)
     client_id  ||= SecureRandom.urlsafe_base64(nil, false)
     last_token ||= nil
     token        = SecureRandom.urlsafe_base64(nil, false)
-    token_hash   = BCrypt::Password.create(token)
+    token_hash   = ::BCrypt::Password.create(token)
     expiry       = (Time.now + DeviseTokenAuth.token_lifespan).to_i
 
     if self.tokens[client_id] and self.tokens[client_id]['token']