From 3d4f9f2c280f9d85722951fa5850ca00a7e80aac Mon Sep 17 00:00:00 2001
From: hellekin <hellekin@cepheide.org>
Date: Thu, 29 Oct 2020 22:40:35 +0100
Subject: REUSE: Add AGPL-3.0-or-later to app/*

---
 app/validators/email_validator.rb | 33 +++++++++++++++++++++++++++++++++
 app/validators/url_validator.rb   | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 app/validators/email_validator.rb
 create mode 100644 app/validators/url_validator.rb

(limited to 'app/validators')

diff --git a/app/validators/email_validator.rb b/app/validators/email_validator.rb
new file mode 100644
index 0000000..4191907
--- /dev/null
+++ b/app/validators/email_validator.rb
@@ -0,0 +1,33 @@
+# SPDX-FileCopyrightText: 2020 IN COMMON Collective <collective@incommon.cc>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+# frozen_string_literal: true
+
+# = Email Validator =
+#
+# In order to be considered valid, value must be:
+#
+# - a valid Email URI
+# - parsable as an URI
+# - have a hostname
+# - have a valid public TLD
+#
+class EmailValidator < ActiveModel::EachValidator
+  def validate_each(record, attribute, value)
+    unless valid_email_address?(value)
+      record.errors[attribute] << (options[:message] || 'is an invalid email address')
+    end
+  end
+
+  private
+
+  def valid_email_address?(value)
+    uri = URI.parse("mailto:#{value}")
+    uri.is_a?(URI::MailTo) &&
+      uri.to == value &&
+      IANA::TLD.valid?(value.split('@', 2).last.split('.').compact.last)
+  rescue URI::InvalidURIError, URI::InvalidComponentError
+    false
+  end
+end
diff --git a/app/validators/url_validator.rb b/app/validators/url_validator.rb
new file mode 100644
index 0000000..5f790b3
--- /dev/null
+++ b/app/validators/url_validator.rb
@@ -0,0 +1,33 @@
+# SPDX-FileCopyrightText: 2020 IN COMMON Collective <collective@incommon.cc>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+# frozen_string_literal: true
+
+# = URL Validator =
+#
+# In order to be considered valid, value must be:
+#
+# - parsable as an URI
+# - use the http or https scheme
+# - have a hostname
+# - have a valid public TLD
+#
+class UrlValidator < ActiveModel::EachValidator
+  def validate_each(record, attribute, value)
+    unless valid_web_address?(value)
+      record.errors[attribute] << (options[:message] || 'is an invalid Web URL')
+    end
+  end
+
+  private
+
+  def valid_web_address?(value)
+    uri = URI.parse(value)
+    uri.is_a?(URI::HTTP) &&
+      uri.host.present? &&
+      IANA::TLD.valid?(uri.host.split('.').compact.last)
+  rescue URI::InvalidURIError
+    false
+  end
+end
-- 
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