diff options
Diffstat (limited to 'lib/local_email.rb')
-rw-r--r-- | lib/local_email.rb | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/local_email.rb b/lib/local_email.rb new file mode 100644 index 0000000..7c592e1 --- /dev/null +++ b/lib/local_email.rb @@ -0,0 +1,67 @@ +require 'email' +class LocalEmail < Email + + BLACKLIST_FROM_RFC2142 = [ + 'postmaster', 'hostmaster', 'domainadmin', 'webmaster', 'www', + 'abuse', 'noc', 'security', 'usenet', 'news', 'uucp', + 'ftp', 'sales', 'marketing', 'support', 'info' + ] + + def self.domain + APP_CONFIG[:domain] + end + + validates :email, + :format => { + :with => /@#{domain}\Z/i, + :message => "needs to end in @#{domain}" + } + + validate :handle_allowed + + def initialize(s) + super + append_domain_if_needed + end + + def to_key + [handle] + end + + def domain + LocalEmail.domain + end + + protected + + def append_domain_if_needed + unless self.index('@') + self << '@' + domain + end + end + + def handle_allowed + errors.add(:handle, "is reserved.") if handle_reserved? + end + + def handle_reserved? + # *ARRAY in a case statement tests if ARRAY includes the handle. + case handle + when *APP_CONFIG[:handle_blacklist] + true + when *APP_CONFIG[:handle_whitelist] + false + when *BLACKLIST_FROM_RFC2142 + true + else + handle_in_passwd? + end + end + + def handle_in_passwd? + Etc.getpwnam(handle).present? + rescue ArgumentError + # handle was not found + return false + end +end |