Remote Procedure Calls - Revision history

Shane at 07:55, 8 April 2013

2013-04-08T07:55:40Z

Shane: categorizing

2013-02-24T23:24:40Z

categorizing

Todd: /* Python Server and PHP Client */

2011-12-11T20:40:37Z

Python Server and PHP Client

Todd: /* Python Server and PHP Client */

2011-12-11T19:03:01Z

Python Server and PHP Client

Todd: /* Perl Frontier Module and PHP client */

2011-12-11T19:02:06Z

Perl Frontier Module and PHP client

Todd: /* XML-RPC Implementations */

2011-12-11T17:18:00Z

XML-RPC Implementations

Todd: /* Perl Frontier Module and PHP client */

2011-12-11T17:16:49Z

Perl Frontier Module and PHP client

Todd: /* Perl Frontier Module and Python client */

2011-12-07T19:42:30Z

Perl Frontier Module and Python client

Todd: /* Perl Frontier Module */

2011-12-07T19:42:08Z

Perl Frontier Module

Todd: /* PHPXMLRPC variables */

2011-12-07T19:41:26Z

PHPXMLRPC variables

← Older revision		Revision as of 07:55, 8 April 2013
Line 303:		Line 303:


		+	[[Category:Module 4]]
	[[Category:Former Content]]		[[Category:Former Content]]

← Older revision		Revision as of 23:24, 24 February 2013
Line 301:		Line 301:
	</pre>		</pre>
	</code>		</code>
		+
		+
		+	[[Category:Former Content]]

@@ Line 152: / Line 152: @@
          return y
-server = SimpleXMLRPCServer(("127.0.0.1, 8000))
+server = SimpleXMLRPCServer(("127.0.0.1", 8000))
 print "Listening on port 8000..."
 server.register_multicall_functions()

@@ Line 139: / Line 139: @@
 ===Python Server and PHP Client ===
-Python and PHP both have several different libraries available to implement XML-RPC.  First we will look at setting up a very simple Python XML-RPC server that returns the larger of two ints.
+Python and PHP both have several different libraries available to implement XML-RPC.  First we will look at setting up a very simple Python XML-RPC server that returns the larger of two ints. We will do this using the SimpleXMLRPCServer library.
 <code>
@@ Line 186: / Line 186: @@
 </pre>
 </code>
 ===Perl Frontier  Module and PHP client ===

← Older revision		Revision as of 19:02, 11 December 2011
Line 137:		Line 137:

	The client's return_type specifies either that the result should be stored in XML or as PHP variables. If there was an error during the call, the response's error code will be set. Otherwise, the value function returns the response value.		The client's return_type specifies either that the result should be stored in XML or as PHP variables. If there was an error during the call, the response's error code will be set. Otherwise, the value function returns the response value.
		+
		+	===Python Server and PHP Client ===
		+	Python and PHP both have several different libraries available to implement XML-RPC. First we will look at setting up a very simple Python XML-RPC server that returns the larger of two ints.
		+
		+	<code>
		+	<pre>
		+	from SimpleXMLRPCServer import SimpleXMLRPCServer
		+
		+
		+	def largerNumber(x, y):
		+	if x>y:
		+	return x
		+	else:
		+	return y
		+
		+	server = SimpleXMLRPCServer(("127.0.0.1, 8000))
		+	print "Listening on port 8000..."
		+	server.register_multicall_functions()
		+	server.register_function(largerNumber, 'largerNumber')
		+	server.serve_forever()
		+	</pre>
		+	</code>
		+	The Python server defines an RPC method called largerNumber which takes two inputs and returns the larger of the two. Next we create our XML-RPC server instructing it to bind (or listen) to the IP address 127.0.0.1. This is a special IP address called the loopback address or the localhost. This forces the server to only accept request sent to the ec2 instance from that instance itself. Typically your client and server would have unique IP addresses and the XML-RPC message would travel over the Internet.
		+
		+	For the PHP client, all we need to do is setup a new XML-RPC connection to the server. In this case the server is the same ec2 instance as the client so we use the loopback IP address. Next we pass in two ints for the RPC server to compare, $first and $second. We then create a XML RPC message with the function we wish to call and an array containing the arguments for the function. Finally, we send the message, get the response, convert it to a scalar value, and display it.
		+
		+	<code>
		+	<pre>
		+	<?php
		+	include("xmlrpc.inc"); //for xmlrpc operations
		+
		+	$client = new xmlrpc_client("http://127.0.0.1:8000:/"); //your host
		+
		+	$first=1;
		+	$second=2;
		+
		+	$msg = new xmlrpcmsg('largerNumber',
		+	array(new xmlrpcval($first, 'int'),
		+	new xmlrpcval($second, 'int')));
		+
		+	$resp = $client->send($msg);
		+
		+	$struct = $resp->value();
		+	$largerNumber = $struct->scalarval();
		+	print $largerNumber . "\n";
		+
		+	?>
		+	</pre>
		+	</code>
		+

	===Perl Frontier Module and PHP client ===		===Perl Frontier Module and PHP client ===

@@ Line 47: / Line 47: @@
 ==XML-RPC Implementations ==
-In order to use XML-RPC, you need to have an XML-RPC library installed for your platform and language. There are several available libraries, depending on your needs. You can find the list at http://www.xmlrpc.com/directory/1568/implementations.
+In order to use XML-RPC, you need to have an XML-RPC library installed for your platform and language. There are several available libraries, depending on your needs.
 ===XML-RPC for PHP(PHPXMLRPC)===

@@ Line 215: / Line 215: @@
 <code>
 <pre>
-&lt;?
+&lt;?php
    $uploadfile = $_FILES['uploadedfile']['tmp_name'];
    $handle = fopen($uploadfile,'r');

@@ Line 137: / Line 137: @@
 The client's return_type specifies either that the result should be stored in XML or as PHP variables. If there was an error during the call, the response's error code will be set. Otherwise, the value function returns the response value.
-===Perl Frontier  Module and Python client ===
+===Perl Frontier  Module and PHP client ===
 Perl has a few different modules for XML-RPC.  We will use the Frontier::* modules, focusing on Frontier::Daemon which provides XML-RPC server functionality.

@@ Line 86: / Line 86: @@
   $myInt = new xmlrpcval(1267, "int");
   $myString = new xmlrpcval("Hello, World!", "string");
-  $myBool = new xmlrpcvalue(1, "boolean");
+  $myBool = new xmlrpcval(1, "boolean");
   // note: this will serialize a php float value as xml-rpc string
   $myString2 = new xmlrpcval(1.24, "string");