1 files changed, 31 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/validate_email_address.rb b/lib/puppet/parser/functions/validate_email_address.rb
new file mode 100644
index 0000000..ddd0d25
--- /dev/null
+++ b/lib/puppet/parser/functions/validate_email_address.rb
@@ -0,0 +1,31 @@
+module Puppet::Parser::Functions
+  newfunction(:validate_email_address, :doc => <<-ENDHEREDOC
+    Validate that all values passed are valid email addresses.
+    Fail compilation if any value fails this check.
+    The following values will pass:
+    $my_email = "waldo@gmail.com"
+    validate_email_address($my_email)
+    validate_email_address("bob@gmail.com", "alice@gmail.com", $my_email)
+
+    The following values will fail, causing compilation to abort:
+    $some_array = [ 'bad_email@/d/efdf.com' ]
+    validate_email_address($some_array)
+    ENDHEREDOC
+             ) do |args|
+    rescuable_exceptions = [ArgumentError]
+
+    if args.empty?
+      raise Puppet::ParseError, "validate_email_address(): wrong number of arguments (#{args.length}; must be > 0)"
+    end
+
+    args.each do |arg|
+      raise Puppet::ParseError, "#{arg.inspect} is not a string." unless arg.is_a?(String)
+
+      begin
+        raise Puppet::ParseError, "#{arg.inspect} is not a valid email address" unless function_is_email_address([arg])
+      rescue *rescuable_exceptions
+        raise Puppet::ParseError, "#{arg.inspect} is not a valid email address"
+      end
+    end
+  end
+end