X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/b4ef61a9f31ac8bb911c094bc2fb00a9fa2102a6..d73a5d4bc015d304e7b8863a0e927ac0b134e07b:/app/validators/characters_validator.rb

diff --git a/app/validators/characters_validator.rb b/app/validators/characters_validator.rb
new file mode 100644
index 000000000..cbcd03a16
--- /dev/null
+++ b/app/validators/characters_validator.rb
@@ -0,0 +1,12 @@
+class CharactersValidator < ActiveModel::EachValidator
+  INVALID_CHARS = "\x00-\x08\x0b-\x0c\x0e-\x1f\x7f\ufffe\uffff".freeze
+  INVALID_URL_CHARS = "/;.,?%#".freeze
+
+  def validate_each(record, attribute, value)
+    record.errors[attribute] << (options[:message] || I18n.t("validations.invalid_chars")) if value =~ /[#{INVALID_CHARS}]/
+
+    if options[:url_safe]
+      record.errors[attribute] << (options[:message] || I18n.t("validations.invalid_url_chars", :invalid_url_chars => INVALID_URL_CHARS)) if value =~ /[#{INVALID_URL_CHARS}]/
+    end
+  end
+end