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[uprise78]

Client side code. Message was base64 encoded before being sent to this function.

- (void)sendSerializedGreeting:(NSString *)message
{
	// Show a loading indicator
	[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
	
	NSString *greetingURL = [NSString stringWithFormat:@"http://yourwebsite.com", [[UIDevice currentDevice] uniqueIdentifier]];
	NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:greetingURL]
															  cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];	
	
	NSDictionary *headerFieldsDict = [NSDictionary dictionaryWithObjectsAndKeys:@"text/xml; charset=utf-8", @"Content-Type", nil];
	
	[theRequest setHTTPBody:[message dataUsingEncoding:NSUTF8StringEncoding]];
	[theRequest setAllHTTPHeaderFields:headerFieldsDict];
	[theRequest setHTTPMethod:@"POST"];
	
	// create the connection with the request and start loading the data
	NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
	
	if (theConnection == nil)
	{
		NSLog(@"Failed to create the connection");
	}
}

Server side code:
// PHP

$file = base64_decode(file_get_contents("php://input"));

// ASP

StreamReader sr = new StreamReader(Page.Request.InputStream);
string file = Encoding.ASCII.GetString(Convert.FromBase64String(sr.ReadToEnd()));