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-rw-r--r--lib/puppet/parser/functions/str2saltedsha512.rb32
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/puppet/parser/functions/str2saltedsha512.rb b/lib/puppet/parser/functions/str2saltedsha512.rb
new file mode 100644
index 0000000..7fe7b01
--- /dev/null
+++ b/lib/puppet/parser/functions/str2saltedsha512.rb
@@ -0,0 +1,32 @@
+#
+# str2saltedsha512.rb
+#
+
+module Puppet::Parser::Functions
+ newfunction(:str2saltedsha512, :type => :rvalue, :doc => <<-EOS
+This converts a string to a salted-SHA512 password hash (which is used for
+OS X versions >= 10.7). Given any simple string, you will get a hex version
+of a salted-SHA512 password hash that can be inserted into your Puppet
+manifests as a valid password attribute.
+ EOS
+ ) do |arguments|
+ require 'digest/sha2'
+
+ raise(Puppet::ParseError, "str2saltedsha512(): Wrong number of arguments " +
+ "passed (#{arguments.size} but we require 1)") if arguments.size != 1
+
+ password = arguments[0]
+
+ unless password.is_a?(String)
+ raise(Puppet::ParseError, 'str2saltedsha512(): Requires a ' +
+ "String argument, you passed: #{password.class}")
+ end
+
+ seedint = rand(2**31 - 1)
+ seedstring = Array(seedint).pack("L")
+ saltedpass = Digest::SHA512.digest(seedstring + password)
+ (seedstring + saltedpass).unpack('H*')[0]
+ end
+end
+
+# vim: set ts=2 sw=2 et :