Saltstorm :: Rpcproxy :: Configuration

Rpcproxy 1.60

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Setting up.

Obviously, since this thing is written in PERL, you'll need an PERL-interpreter on your system. If you are on a *nix/Linux system you most certainly have one there by default. If running on a Win32 system (e.g Win NT/2k) there is great distribution of PERL available freely at

Checklist

Put this script accessible from your HTTP-server and make sure it is chmodded as executable. (e.g /cgi-bin/rpcproxy.cgi)
Modify the topmost line of this script to match the path to your PERL executable. On UNIX you probably use #!/perl/bin/perl, on a Win32 box #!perl should be sufficient.
Making sure you have everything works, open up your favorite browser and adress the script from the addressbar. (http://www.mydomain.tld/cgi-bin/rpcproxy.cgi) If you get a HTTP 403 in response all should be fine. This is the default response for a GET-request or a POST not having the credentials to be proxied. If you are getting anything else in return (500/501) you must step back and re-check step 1 and 2 again
Go through the userdefinables section at the top of rpcproxy.cgi to tune it for your needs. Access-logging is turned off by default, so if you want to monitor usage, you'll have to switch it on.
Now, the world of remote RPC-services is yours... Of course you need to know a fair piece of the DOM, XML and the XML-RPC service specification, but that is horse of different color not covered here.

A Clientside Example

// Browserside example for a remote call
// via rpcproxy Mozilla 0.8.2+/MSIE 5+ (Win32)
var sRPCService = 'http://www.remote.tld/rpc-server';
var sRPCProxy = 'http://www.local.tld/cgi-bin/rpcproxy.cgi';
var oXMLHTTP = (typeof ActiveXObject != 'undefined') ?
new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest();
oXMLHTTP.open('POST', sRPCProxy, false);
oXMLHTTP.setRequestHeader('X-Proxy-Request', sRPCService);
oXMLHTTP.setRequestHeader('X-Compress-Response', 'gzip');
oXMLHTTP.send([object XMLDomDocument]);
var oXMLDOM = oXMLHTTP.responseXML;
// ... do stuff with incoming oXMLDOM ...

Access Logging.

Rpcproxy can be enabled to log all proxied traffic, the logformat is 99% NCSA Common compatible (Apache style) and gives detailed information about the traffic. Logging is turned off by default.

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