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require 'openssl'
require 'puppet'
require 'puppet/parser/interpreter'
require 'puppet/sslcertificates'
require 'xmlrpc/server'
require 'yaml'
class Puppet::Network::Handler
class Configuration < Handler
desc "Puppet's configuration compilation interface. Passed a node name
or other key, retrieves information about the node (using the ``node_source``)
and returns a compiled configuration."
include Puppet::Util
attr_accessor :local
@interface = XMLRPC::Service::Interface.new("configuration") { |iface|
iface.add_method("string configuration(string)")
iface.add_method("string version()")
}
# Compile a node's configuration.
def configuration(key, client = nil, clientip = nil)
# If we want to use the cert name as our key
if Puppet[:node_name] == 'cert' and client
key = client
end
# Note that this is reasonable, because either their node source should actually
# know about the node, or they should be using the ``none`` node source, which
# will always return data.
unless node = node_handler.details(key)
raise Puppet::Error, "Could not find node '%s'" % key
end
# Add any external data to the node.
add_node_data(node)
configuration = compile(node)
return translate(configuration)
end
def initialize(options = {})
if options[:Local]
@local = options[:Local]
else
@local = false
end
# Just store the options, rather than creating the interpreter
# immediately. Mostly, this is so we can create the interpreter
# on-demand, which is easier for testing.
@options = options
set_server_facts
end
# Are we running locally, or are our clients networked?
def local?
self.local
end
# Return the configuration version.
def version(client = nil, clientip = nil)
if client and node = node_handler.details(client)
update_node_check(node)
return interpreter.configuration_version(node)
else
# Just return something that will always result in a recompile, because
# this is local.
return (Time.now + 1000).to_i
end
end
private
# Add any extra data necessary to the node.
def add_node_data(node)
# Merge in our server-side facts, so they can be used during compilation.
node.fact_merge(@server_facts)
# Add any specified classes to the node's class list.
if classes = @options[:Classes]
classes.each do |klass|
node.classes << klass
end
end
end
# Compile the actual configuration.
def compile(node)
# Pick the benchmark level.
if local?
level = :none
else
level = :notice
end
# Ask the interpreter to compile the configuration.
str = "Compiled configuration for %s" % node.name
if node.environment
str += " in environment %s" % node.environment
end
config = nil
benchmark(level, "Compiled configuration for %s" % node.name) do
begin
config = interpreter.compile(node)
rescue Puppet::Error => detail
if Puppet[:trace]
puts detail.backtrace
end
unless local?
Puppet.err detail.to_s
end
raise XMLRPC::FaultException.new(
1, detail.to_s
)
end
end
return config
end
# Create our interpreter object.
def create_interpreter(options)
args = {}
# Allow specification of a code snippet or of a file
if code = options[:Code]
args[:Code] = code
elsif options[:Manifest]
args[:Manifest] = options[:Manifest]
end
args[:Local] = local?
if options.include?(:UseNodes)
args[:UseNodes] = options[:UseNodes]
elsif @local
args[:UseNodes] = false
end
# This is only used by the cfengine module, or if --loadclasses was
# specified in +puppet+.
if options.include?(:Classes)
args[:Classes] = options[:Classes]
end
return Puppet::Parser::Interpreter.new(args)
end
# Create/return our interpreter.
def interpreter
unless defined?(@interpreter) and @interpreter
@interpreter = create_interpreter(@options)
end
@interpreter
end
# Create a node handler instance for looking up our nodes.
def node_handler
unless defined?(@node_handler)
@node_handler = Puppet::Network::Handler.handler(:node).create
end
@node_handler
end
# Initialize our server fact hash; we add these to each client, and they
# won't change while we're running, so it's safe to cache the values.
def set_server_facts
@server_facts = {}
# Add our server version to the fact list
@server_facts["serverversion"] = Puppet.version.to_s
# And then add the server name and IP
{"servername" => "fqdn",
"serverip" => "ipaddress"
}.each do |var, fact|
if value = Facter.value(fact)
@server_facts[var] = value
else
Puppet.warning "Could not retrieve fact %s" % fact
end
end
if @server_facts["servername"].nil?
host = Facter.value(:hostname)
if domain = Facter.value(:domain)
@server_facts["servername"] = [host, domain].join(".")
else
@server_facts["servername"] = host
end
end
end
# Translate our configuration appropriately for sending back to a client.
def translate(config)
if local?
config
else
CGI.escape(config.to_yaml(:UseBlock => true))
end
end
# Mark that the node has checked in. FIXME this needs to be moved into
# the Node class, or somewhere that's got abstract backends.
def update_node_check(node)
if Puppet.features.rails? and Puppet[:storeconfigs]
Puppet::Rails.connect
host = Puppet::Rails::Host.find_or_create_by_name(node.name)
host.last_freshcheck = Time.now
host.save
end
end
end
end
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