<?php/*The following file enables the uploading of each image from the java applet.PLEASE NOTE, THIS FILES IN ITS PRESENT FORM IS A MASSIVE SECURITY RISK, ANDSHOULD NOT BE USED WITHOUT DOING EITHER OF THE FOLLOWING:- PROTECTING THE ACCESS OF THE FILE BY THE USE OF SESSION VARIABLES (DO NOT  PROTECT IT BY USING HTTP PASSWORDS)- ENSURING THAT UPLOADED FILES ARE NOT ACCESSIBLE TO THE WEB (UPLOAD FILES  TO A DIRECTORY ABOVE THE DOCUMENT ROOT)*//*AS OF POSTLET 0.11, POSTLET READS THE MESSAGES SENT BACK TO IT, AND NOWIS AWARE OF WHETHER OR NOT AN UPLOAD HAS BEEN SUCCESSFUL. MORE INFORMATIONABOUT THE FORMAT OF REPLY MESSAGES CAN BE FOUND ON THE POSTLET WEBSITE http://www.postlet.com/install/*/// Configuration ---------------------------------------------------------------// Change the below path to the folder where you would like files uploading.// e.g. "/home/yourname/myuploads/"// or "c:\php\uploads\"// Note, this MUST have the trailing slash.$uploaddir = '[PATH TO UPLOAD DIRECTORY]';// Whether or not to allow the upload of specific files$allow_or_deny = true;// If the above is true, then this states whether the array of files is a list of// extensions to ALLOW, or DENY$allow_or_deny_method = "deny"; // "allow" or "deny"$file_extension_list = array("php","asp","pl");// -----------------------------------------------------------------------------if ($allow_or_deny){	if (($allow_or_deny_method == "allow" && !in_array(strtolower(array_pop(explode('.', $_FILES['userfile']['name']))), $file_extension_list))		|| ($allow_or_deny_method == "deny" && in_array(strtolower(array_pop(explode('.', $_FILES['userfile']['name']))), $file_extension_list))){				// Atempt to upload a file with a specific extension when NOT allowed.		// 403 error		header("HTTP/1.1 403 Forbidden");		echo "POSTLET REPLY\r\n";		echo "POSTLET:NO\r\n";		echo "POSTLET:FILE TYPE NOT ALLOWED\r\n";		echo "POSTLET:ABORT THIS\r\n"; // Postlet should NOT send this file again.		echo "END POSTLET REPLY\r\n";		exit;	}}if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploaddir .$_FILES['userfile']['name'])){	// All replies MUST start with "POSTLET REPLY", if they don't, then Postlet will	// not read the reply and will assume the file uploaded successfully.	echo "POSTLET REPLY\r\n";	// "YES" tells Postlet that this file was successfully uploaded.    echo "POSTLET:YES\r\n";	// End the Postlet reply	echo "END POSTLET REPLY\r\n";	exit;} else{	// If the file can not be uploaded (most likely due to size), then output the	// correct error code	// If $_FILES is EMPTY, or $_FILES['userfile']['error']==1 then TOO LARGE	if (count($_FILES)==0 || $_FILES['userfile']['error']==1){		// All replies MUST start with "POSTLET REPLY", if they don't, then Postlet will		// not read the reply and will assume the file uploaded successfully.		header("HTTP/1.1 413 Request Entity Too Large");		echo "POSTLET REPLY\r\n";		echo "POSTLET:NO\r\n";		echo "POSTLET:TOO LARGE\r\n";		echo "POSTLET:ABORT THIS\r\n"; // Postlet should NOT send this file again.		echo "END POSTLET REPLY\r\n";		exit;	}	// Unable to write the file to the server ALL WILL FAIL	else if ($_FILES['userfile']['error']==6 || $_FILES['userfile']['error']==7){		// All replies MUST start with "POSTLET REPLY", if they don't, then Postlet will		// not read the reply and will assume the file uploaded successfully.		header("HTTP/1.1 500 Internal Server Error");		echo "POSTLET REPLY\r\n";		echo "POSTLET:NO\r\n";		echo "POSTLET:SERVER ERROR\r\n";		echo "POSTLET:ABORT ALL\r\n"; // Postlet should NOT send any more files		echo "END POSTLET REPLY\r\n";		exit;	}	// Unsure of the error here (leaves 2,3,4, which means try again)	else {		// All replies MUST start with "POSTLET REPLY", if they don't, then Postlet will		// not read the reply and will assume the file uploaded successfully.		header("HTTP/1.1 500 Internal Server Error");		echo "POSTLET REPLY\r\n";		echo "POSTLET:NO\r\n";		echo "POSTLET:UNKNOWN ERROR\r\n";		echo "POSTLET:RETRY\r\n";		print_r($_REQUEST); // Possible usefull for debugging		echo "END POSTLET REPLY\r\n";		exit;	}}?>