discourse/lib/email.rb

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543 B
Ruby
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require 'mail'
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module Email
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def self.is_valid?(email)
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parser = Mail::RFC2822Parser.new
parser.root = :addr_spec
result = parser.parse(email)
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# 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
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end