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-rw-r--r--users/app/models/local_email.rb33
1 files changed, 33 insertions, 0 deletions
diff --git a/users/app/models/local_email.rb b/users/app/models/local_email.rb
index 6303bb6..2b4c65e 100644
--- a/users/app/models/local_email.rb
+++ b/users/app/models/local_email.rb
@@ -1,5 +1,10 @@
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]
@@ -11,6 +16,8 @@ class LocalEmail < Email
:message => "needs to end in @#{domain}"
}
+ validate :handle_allowed
+
def initialize(s)
super
append_domain_if_needed
@@ -32,4 +39,30 @@ class LocalEmail < Email
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?
+ begin
+ !!Etc.getpwnam(handle)
+ rescue ArgumentError
+ # handle was not found
+ return false
+ end
+ end
end