mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
1df7862b2b
* lib/xmlrpc/datetime.rb: ditto. * lib/xmlrpc/parser.rb: ditto. * lib/xmlrpc/client.rb: ditto. * lib/xmlrpc/utils.rb: ditto. * lib/xmlrpc/README.rdoc: ditto. * lib/xmlrpc/create.rb: ditto. * lib/xmlrpc/base64.rb: ditto. * lib/xmlrpc/config.rb: ditto. * lib/xmlrpc/httpserver.rb: ditto. * lib/xmlrpc/server.rb: ditto. * lib/xmlrpc/marshal.rb: ditto. * lib/xmlrpc/README.txt: ditto. [Bug #6909] [ruby-core:47286] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36958 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
301 lines
8.5 KiB
Ruby
301 lines
8.5 KiB
Ruby
# == Author and Copyright
|
|
#
|
|
# Copyright (C) 2001-2004 by Michael Neumann (mailto:mneumann@ntecs.de)
|
|
#
|
|
# Released under the same term of license as Ruby.
|
|
#
|
|
# == Overview
|
|
#
|
|
# XMLRPC is a lightweight protocol that enables remote procedure calls over
|
|
# HTTP. It is defined at http://www.xmlrpc.com.
|
|
#
|
|
# XMLRPC allows you to create simple distributed computing solutions that span
|
|
# computer languages. Its distinctive feature is its simplicity compared to
|
|
# other approaches like SOAP and CORBA.
|
|
#
|
|
# The Ruby standard library package 'xmlrpc' enables you to create a server that
|
|
# implements remote procedures and a client that calls them. Very little code
|
|
# is required to achieve either of these.
|
|
#
|
|
# == Example
|
|
#
|
|
# Try the following code. It calls a standard demonstration remote procedure.
|
|
#
|
|
# require 'xmlrpc/client'
|
|
# require 'pp'
|
|
#
|
|
# server = XMLRPC::Client.new2("http://xmlrpc-c.sourceforge.net/api/sample.php")
|
|
# result = server.call("sample.sumAndDifference", 5, 3)
|
|
# pp result
|
|
#
|
|
# == Documentation
|
|
#
|
|
# See http://www.ntecs.de/projects/xmlrpc4r. There is plenty of detail there to
|
|
# use the client and implement a server.
|
|
#
|
|
# == Features of XMLRPC for Ruby
|
|
#
|
|
# * Extensions
|
|
# * Introspection
|
|
# * multiCall
|
|
# * optionally nil values and integers larger than 32 Bit
|
|
#
|
|
# * Server
|
|
# * Standalone XML-RPC server
|
|
# * CGI-based (works with FastCGI)
|
|
# * Apache mod_ruby server
|
|
# * WEBrick servlet
|
|
#
|
|
# * Client
|
|
# * synchronous/asynchronous calls
|
|
# * Basic HTTP-401 Authentification
|
|
# * HTTPS protocol (SSL)
|
|
#
|
|
# * Parsers
|
|
# * NQXML (XMLParser::NQXMLStreamParser, XMLParser::NQXMLTreeParser)
|
|
# * Expat (XMLParser::XMLStreamParser, XMLParser::XMLTreeParser)
|
|
# * REXML (XMLParser::REXMLStreamParser)
|
|
# * xml-scan (XMLParser::XMLScanStreamParser)
|
|
# * Fastest parser is Expat's XMLParser::XMLStreamParser!
|
|
#
|
|
# * General
|
|
# * possible to choose between XMLParser module (Expat wrapper) and REXML/NQXML (pure Ruby) parsers
|
|
# * Marshalling Ruby objects to Hashs and reconstruct them later from a Hash
|
|
# * SandStorm component architecture XMLRPC::Client interface
|
|
#
|
|
# == Howto
|
|
#
|
|
# === Client
|
|
#
|
|
# require "xmlrpc/client"
|
|
#
|
|
# # Make an object to represent the XML-RPC server.
|
|
# server = XMLRPC::Client.new( "xmlrpc-c.sourceforge.net", "/api/sample.php")
|
|
#
|
|
# # Call the remote server and get our result
|
|
# result = server.call("sample.sumAndDifference", 5, 3)
|
|
#
|
|
# sum = result["sum"]
|
|
# difference = result["difference"]
|
|
#
|
|
# puts "Sum: #{sum}, Difference: #{difference}"
|
|
#
|
|
# === XMLRPC::Client with XML-RPC fault-structure handling
|
|
#
|
|
# There are two possible ways, of handling a fault-structure:
|
|
#
|
|
# ==== by catching a XMLRPC::FaultException exception
|
|
#
|
|
# require "xmlrpc/client"
|
|
#
|
|
# # Make an object to represent the XML-RPC server.
|
|
# server = XMLRPC::Client.new( "xmlrpc-c.sourceforge.net", "/api/sample.php")
|
|
#
|
|
# begin
|
|
# # Call the remote server and get our result
|
|
# result = server.call("sample.sumAndDifference", 5, 3)
|
|
#
|
|
# sum = result["sum"]
|
|
# difference = result["difference"]
|
|
#
|
|
# puts "Sum: #{sum}, Difference: #{difference}"
|
|
#
|
|
# rescue XMLRPC::FaultException => e
|
|
# puts "Error: "
|
|
# puts e.faultCode
|
|
# puts e.faultString
|
|
# end
|
|
#
|
|
# ==== by calling "call2" which returns a boolean
|
|
#
|
|
# require "xmlrpc/client"
|
|
#
|
|
# # Make an object to represent the XML-RPC server.
|
|
# server = XMLRPC::Client.new( "xmlrpc-c.sourceforge.net", "/api/sample.php")
|
|
#
|
|
# # Call the remote server and get our result
|
|
# ok, result = server.call2("sample.sumAndDifference", 5, 3)
|
|
#
|
|
# if ok
|
|
# sum = result["sum"]
|
|
# difference = result["difference"]
|
|
#
|
|
# puts "Sum: #{sum}, Difference: #{difference}"
|
|
# else
|
|
# puts "Error: "
|
|
# puts result.faultCode
|
|
# puts result.faultString
|
|
# end
|
|
#
|
|
# === Using XMLRPC::Client::Proxy
|
|
#
|
|
# You can create a Proxy object onto which you can call methods. This way it
|
|
# looks nicer. Both forms, _call_ and _call2_ are supported through _proxy_ and
|
|
# _proxy2_. You can additionally give arguments to the Proxy, which will be
|
|
# given to each XML-RPC call using that Proxy.
|
|
#
|
|
# require "xmlrpc/client"
|
|
#
|
|
# # Make an object to represent the XML-RPC server.
|
|
# server = XMLRPC::Client.new( "xmlrpc-c.sourceforge.net", "/api/sample.php")
|
|
#
|
|
# # Create a Proxy object
|
|
# sample = server.proxy("sample")
|
|
#
|
|
# # Call the remote server and get our result
|
|
# result = sample.sumAndDifference(5,3)
|
|
#
|
|
# sum = result["sum"]
|
|
# difference = result["difference"]
|
|
#
|
|
# puts "Sum: #{sum}, Difference: #{difference}"
|
|
#
|
|
# === CGI-based server using XMLRPC::CGIServer
|
|
#
|
|
# There are also two ways to define handler, the first is
|
|
# like C/PHP, the second like Java, of course both ways
|
|
# can be mixed:
|
|
#
|
|
# ==== C/PHP-like (handler functions)
|
|
#
|
|
# require "xmlrpc/server"
|
|
#
|
|
# s = XMLRPC::CGIServer.new
|
|
#
|
|
# s.add_handler("sample.sumAndDifference") do |a,b|
|
|
# { "sum" => a + b, "difference" => a - b }
|
|
# end
|
|
#
|
|
# s.serve
|
|
#
|
|
# ==== Java-like (handler classes)
|
|
#
|
|
# require "xmlrpc/server"
|
|
#
|
|
# s = XMLRPC::CGIServer.new
|
|
#
|
|
# class MyHandler
|
|
# def sumAndDifference(a, b)
|
|
# { "sum" => a + b, "difference" => a - b }
|
|
# end
|
|
# end
|
|
#
|
|
# # NOTE: Security Hole (read below)!!!
|
|
# s.add_handler("sample", MyHandler.new)
|
|
# s.serve
|
|
#
|
|
#
|
|
# To return a fault-structure you have to raise an XMLRPC::FaultException e.g.:
|
|
#
|
|
# raise XMLRPC::FaultException.new(3, "division by Zero")
|
|
#
|
|
# ===== Security Note
|
|
#
|
|
# From Brian Candler:
|
|
#
|
|
# Above code sample has an extremely nasty security hole, in that you can now call
|
|
# any method of 'MyHandler' remotely, including methods inherited from Object
|
|
# and Kernel! For example, in the client code, you can use
|
|
#
|
|
# puts server.call("sample.send","`","ls")
|
|
#
|
|
# (backtick being the method name for running system processes). Needless to
|
|
# say, 'ls' can be replaced with something else.
|
|
#
|
|
# The version which binds proc objects (or the version presented below in the next section)
|
|
# doesn't have this problem, but people may be tempted to use the second version because it's
|
|
# so nice and 'Rubyesque'. I think it needs a big red disclaimer.
|
|
#
|
|
#
|
|
# From Michael:
|
|
#
|
|
# A solution is to undef insecure methods or to use
|
|
# XMLRPC::Service::PublicInstanceMethodsInterface as shown below:
|
|
#
|
|
# class MyHandler
|
|
# def sumAndDifference(a, b)
|
|
# { "sum" => a + b, "difference" => a - b }
|
|
# end
|
|
# end
|
|
#
|
|
# # ... server initialization ...
|
|
#
|
|
# s.add_handler(XMLRPC::iPIMethods("sample"), MyHandler.new)
|
|
#
|
|
# # ...
|
|
#
|
|
# This adds only public instance methods explicitly declared in class MyHandler
|
|
# (and not those inherited from any other class).
|
|
#
|
|
# ==== With interface declarations
|
|
#
|
|
# Code sample from the book Ruby Developer's Guide:
|
|
#
|
|
# require "xmlrpc/server"
|
|
#
|
|
# class Num
|
|
# INTERFACE = XMLRPC::interface("num") {
|
|
# meth 'int add(int, int)', 'Add two numbers', 'add'
|
|
# meth 'int div(int, int)', 'Divide two numbers'
|
|
# }
|
|
#
|
|
# def add(a, b) a + b end
|
|
# def div(a, b) a / b end
|
|
# end
|
|
#
|
|
#
|
|
# s = XMLRPC::CGIServer.new
|
|
# s.add_handler(Num::INTERFACE, Num.new)
|
|
# s.serve
|
|
#
|
|
# === Standalone XMLRPC::Server
|
|
#
|
|
# Same as CGI-based server, the only difference being
|
|
#
|
|
# server = XMLRPC::CGIServer.new
|
|
#
|
|
# must be changed to
|
|
#
|
|
# server = XMLRPC::Server.new(8080)
|
|
#
|
|
# if you want a server listening on port 8080.
|
|
# The rest is the same.
|
|
#
|
|
# === Choosing a different XMLParser or XMLWriter
|
|
#
|
|
# The examples above all use the default parser (which is now since 1.8
|
|
# XMLParser::REXMLStreamParser) and a default XMLRPC::XMLWriter.
|
|
# If you want to use a different XMLParser, then you have to call the
|
|
# ParserWriterChooseMixin#set_parser method of XMLRPC::Client instances
|
|
# or instances of subclasses of XMLRPC::BasicServer or by editing
|
|
# xmlrpc/config.rb.
|
|
#
|
|
# XMLRPC::Client Example:
|
|
#
|
|
# # ...
|
|
# server = XMLRPC::Client.new( "xmlrpc-c.sourceforge.net", "/api/sample.php")
|
|
# server.set_parser(XMLRPC::XMLParser::XMLParser.new)
|
|
# # ...
|
|
#
|
|
# XMLRPC::Server Example:
|
|
#
|
|
# # ...
|
|
# s = XMLRPC::CGIServer.new
|
|
# s.set_parser(XMLRPC::XMLParser::XMLStreamParser.new)
|
|
# # ...
|
|
#
|
|
# or:
|
|
#
|
|
# # ...
|
|
# server = XMLRPC::Server.new(8080)
|
|
# server.set_parser(XMLRPC::XMLParser::NQXMLParser.new)
|
|
# # ...
|
|
#
|
|
#
|
|
# Note that XMLParser::XMLStreamParser is incredible faster (and uses less memory) than any
|
|
# other parser and scales well for large documents. For example for a 0.5 MB XML
|
|
# document with many tags, XMLParser::XMLStreamParser is ~350 (!) times faster than
|
|
# XMLParser::NQXMLTreeParser and still ~18 times as fast as XMLParser::XMLTreeParser.
|
|
#
|
|
# You can change the XML-writer by calling method ParserWriterChooseMixin#set_writer.
|
|
module XMLRPC; end
|