diff --git a/lib/puppet/indirector/request.rb b/lib/puppet/indirector/request.rb index ee243060b..95611697b 100644 --- a/lib/puppet/indirector/request.rb +++ b/lib/puppet/indirector/request.rb @@ -1,259 +1,257 @@ require 'cgi' require 'uri' require 'puppet/indirector' require 'puppet/network/resolver' require 'puppet/util/psych_support' # This class encapsulates all of the information you need to make an # Indirection call, and as a result also handles REST calls. It's somewhat # analogous to an HTTP Request object, except tuned for our Indirector. class Puppet::Indirector::Request include Puppet::Util::PsychSupport attr_accessor :key, :method, :options, :instance, :node, :ip, :authenticated, :ignore_cache, :ignore_terminus attr_accessor :server, :port, :uri, :protocol attr_reader :indirection_name # trusted_information is specifically left out because we can't serialize it # and keep it "trusted" OPTION_ATTRIBUTES = [:ip, :node, :authenticated, :ignore_terminus, :ignore_cache, :instance, :environment] # Is this an authenticated request? def authenticated? # Double negative, so we just get true or false ! ! authenticated end def environment # If environment has not been set directly, we should use the application's # current environment @environment ||= Puppet.lookup(:current_environment) end def environment=(env) @environment = if env.is_a?(Puppet::Node::Environment) env - elsif (current_environment = Puppet.lookup(:current_environment)).name == env - current_environment else Puppet.lookup(:environments).get!(env) end end def escaped_key URI.escape(key) end # LAK:NOTE This is a messy interface to the cache, and it's only # used by the Configurer class. I decided it was better to implement # it now and refactor later, when we have a better design, than # to spend another month coming up with a design now that might # not be any better. def ignore_cache? ignore_cache end def ignore_terminus? ignore_terminus end def initialize(indirection_name, method, key, instance, options = {}) @instance = instance options ||= {} self.indirection_name = indirection_name self.method = method options = options.inject({}) { |hash, ary| hash[ary[0].to_sym] = ary[1]; hash } set_attributes(options) @options = options if key # If the request key is a URI, then we need to treat it specially, # because it rewrites the key. We could otherwise strip server/port/etc # info out in the REST class, but it seemed bad design for the REST # class to rewrite the key. if key.to_s =~ /^\w+:\// and not Puppet::Util.absolute_path?(key.to_s) # it's a URI set_uri_key(key) else @key = key end end @key = @instance.name if ! @key and @instance end # Look up the indirection based on the name provided. def indirection Puppet::Indirector::Indirection.instance(indirection_name) end def indirection_name=(name) @indirection_name = name.to_sym end def model raise ArgumentError, "Could not find indirection '#{indirection_name}'" unless i = indirection i.model end # Are we trying to interact with multiple resources, or just one? def plural? method == :search end # Create the query string, if options are present. def query_string return "" if options.nil? || options.empty? "?" + encode_params(expand_into_parameters(options.to_a)) end def expand_into_parameters(data) data.inject([]) do |params, key_value| key, value = key_value expanded_value = case value when Array value.collect { |val| [key, val] } else [key_value] end params.concat(expand_primitive_types_into_parameters(expanded_value)) end end def expand_primitive_types_into_parameters(data) data.inject([]) do |params, key_value| key, value = key_value case value when nil params when true, false, String, Symbol, Fixnum, Bignum, Float params << [key, value] else raise ArgumentError, "HTTP REST queries cannot handle values of type '#{value.class}'" end end end def encode_params(params) params.collect do |key, value| "#{key}=#{CGI.escape(value.to_s)}" end.join("&") end def initialize_from_hash(hash) @indirection_name = hash['indirection_name'].to_sym @method = hash['method'].to_sym @key = hash['key'] @instance = hash['instance'] @options = hash['options'] end def to_data_hash { 'indirection_name' => @indirection_name.to_s, 'method' => @method.to_s, 'key' => @key, 'instance' => @instance, 'options' => @options } end def to_hash result = options.dup OPTION_ATTRIBUTES.each do |attribute| if value = send(attribute) result[attribute] = value end end result end def to_s return(uri ? uri : "/#{indirection_name}/#{key}") end def do_request(srv_service=:puppet, default_server=Puppet.settings[:server], default_port=Puppet.settings[:masterport], &block) # We were given a specific server to use, so just use that one. # This happens if someone does something like specifying a file # source using a puppet:// URI with a specific server. return yield(self) if !self.server.nil? if Puppet.settings[:use_srv_records] Puppet::Network::Resolver.each_srv_record(Puppet.settings[:srv_domain], srv_service) do |srv_server, srv_port| begin self.server = srv_server self.port = srv_port return yield(self) rescue SystemCallError => e Puppet.warning "Error connecting to #{srv_server}:#{srv_port}: #{e.message}" end end end # ... Fall back onto the default server. Puppet.debug "No more servers left, falling back to #{default_server}:#{default_port}" if Puppet.settings[:use_srv_records] self.server = default_server self.port = default_port return yield(self) end def remote? self.node or self.ip end private def set_attributes(options) OPTION_ATTRIBUTES.each do |attribute| if options.include?(attribute.to_sym) send(attribute.to_s + "=", options[attribute]) options.delete(attribute) end end end # Parse the key as a URI, setting attributes appropriately. def set_uri_key(key) @uri = key begin uri = URI.parse(URI.escape(key)) rescue => detail raise ArgumentError, "Could not understand URL #{key}: #{detail}", detail.backtrace end # Just short-circuit these to full paths if uri.scheme == "file" @key = Puppet::Util.uri_to_path(uri) return end @server = uri.host if uri.host # If the URI class can look up the scheme, it will provide a port, # otherwise it will default to '0'. if uri.port.to_i == 0 and uri.scheme == "puppet" @port = Puppet.settings[:masterport].to_i else @port = uri.port.to_i end @protocol = uri.scheme if uri.scheme == 'puppet' @key = URI.unescape(uri.path.sub(/^\//, '')) return end env, indirector, @key = URI.unescape(uri.path.sub(/^\//, '')).split('/',3) @key ||= '' self.environment = env unless env == '' end end