discourse/lib/email.rb
2013-04-15 02:20:33 +02:00

20 lines
543 B
Ruby

require 'mail'
module Email
def self.is_valid?(email)
parser = Mail::RFC2822Parser.new
parser.root = :addr_spec
result = parser.parse(email)
# Don't allow for a TLD by itself list (sam@localhost)
# The Grammar is: (local_part "@" domain) / local_part ... need to discard latter
result && result.respond_to?(:domain) && result.domain.dot_atom_text.elements.size > 1
end
def self.downcase(email)
return email unless Email.is_valid?(email)
email.gsub(/^(.+@{1})([^@]+)$/) { $1 + $2.downcase }
end
end