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PHP Code for Uploading from Loggers

Simple

<?
//print_r($_POST);
//print_r($_FILES); 
//This is a function used later on for testing extenstions
//skip it for now
function endsWith( $str, $sub ) {
   return ( substr( $str, strlen( $str ) - strlen( $sub ) ) === $sub );
}
//get ready
unset($filename);

//get the files in from the post
if(!isset($_FILES) && isset($HTTP_POST_FILES))
$_FILES = $HTTP_POST_FILES;
//if no file was sent
if(!isset($_FILES['data_file']))
$error["data_file"] = "File named data_file was not found.";

$filename = urldecode($_FILES['data_file']['name'] );
//this will contain the extra information that you sent over
//if they don't have a path name use the default of an "up"
//folder in the current directory.  This requires you to have a 
//world writable "up" directory in the same directory as up.php
$pos = strpos($filename,"/home/");
if ($pos === false) {
			$filename = "./up/" . $filename;
}
//if they did not send over any filename
if(empty($filename))
$error["filename"] = "The name of the file was not found.";

//if there were no previous problems
if(empty($error))
{
	//security measure, only good file extensions get in
	if (endsWith($filename, ".png") || endsWith($filename,".jpg") || endsWith($filename,".log")){
		//this is it, move and name the file within the server
		$result = @move_uploaded_file($_FILES['data_file']['tmp_name'], $filename );
		if(empty($result))
			$error["result"] = "There was an error moving the uploaded file.";
	}else{
		$error["extension"] = "Bad File Extension.";
	}

}


if(is_array($error))
{
	//send back the litany of errors
	while(list($key, $val) = each($error))
		{
		echo $val;
		echo "<br>\n";
		}
}else{
	//send back a sunny message
	$size = filesize($tmp );
	echo "OK: $size bytes FILENAME: $filename  ";  
}

?>

Upload a Header First, Then The Data

<?
//print_r($_POST);
//print_r($_FILES); 
//THIS IS JUST A LITTLE FUCNTION FOR CHECKING FILE EXTENSIONS
function endsWith( $str, $sub ) {
   return ( substr( $str, strlen( $str ) - strlen( $sub ) ) === $sub );
}
//NOT SURE WHY I DID THIS
unset($metadata);
//NOT SURE WHY I DID THIS
if(!isset($_FILES) && isset($HTTP_POST_FILES))
$_FILES = $HTTP_POST_FILES;

//LOOK FOR THE DATA
if(!isset($_FILES['data_file']))
$error["data_file"] = "Data was not found.";

//LOOK FOR THE METADATA IN THE FORMAT OF: FILENAME|APPEND|PACKET|1|OF|4
$metadata = urldecode($_FILES['data_file']['name'] );
if(empty($metadata))
$error["metadata"] = "Metadata of the was not found.";

//PARSE METADATA
$parts = explode("|",$metadata,6);

//GET FILENAME, ADD DEFAULT PATH OF ./up/ IF IT DOES NO HAVE A PATH
$filename = $parts[0];
$pos = strpos($filename,"/home/");
if ($pos === false) {
			$filename = "./up/" . $filename;
}
if(empty($filename))
$error["filename"] = "The name of the was not found.";

//MAKE SURE FOR SECURITY THAT THE FILE EXTENSIONS ARE KOSHER
if (!(endsWith($filename, ".png") || endsWith($filename,".jpg") || endsWith($filename,".log"))   )
$error["extension"] = "Bad File Extension. $filename";

$method = "appended";
//CHECK IF THEY WANT TO REPLACE OR APPEND THE FILE
$append = $parts[1];
$whichPacket = $parts[3];
$totalPackets = $parts[4];

if ($whichPacket != "1") {  //if they are sending it over in parts append.
	$append = "APPEND";  
}else{  //if this is the first (and possibly only) packet check for extra metadata for a separate file
	if(sizeof($parts) > 5){
		$extraData = $parts[5];
		//if (strlen($extraDaat)>0){
		$dest = fopen($filename.".meta", 'a') ;
		if (empty($dest))  $error["append"] = "Could not open file to append";
		if(empty($error)){
			$tmp = $_FILES['data_file']['tmp_name'];
			$src = fopen($tmp, 'r');
			$content = fread($src,  filesize($tmp ));
			fwrite($dest,$extraData);
			//stream_copy_to_stream($src, $dest);
			fclose($dest);
		}
		//}
	}
}
$pos = strpos($append,"APPEND");
if ($pos === false){  //REPLACE THE FILE
	if(empty($error)){
		$result = @move_uploaded_file($_FILES['data_file']['tmp_name'], $filename );
		$method = "replaced";
		if(empty($result))
		$error["result"] = "There was an error moving the uploaded file.";
	}
}else{  //APPEND THE FILE
	$dest = fopen($filename, 'a') ;
	if (empty($dest))  $error["append"] = "Could not open file to append";
	if(empty($error)){
		$tmp = $_FILES['data_file']['tmp_name'];
		$src = fopen($tmp, 'r');
		$content = fread($src,  filesize($tmp ));
		fwrite($dest,$content);
		//stream_copy_to_stream($src, $dest);
		fclose($dest);
	}
}

if(is_array($error)){ //SEND BACK THE ERRORS
	while(list($key, $val) = each($error))
		{
		echo $val;
		echo "<br>\n";
		}
}else{ //SEND BACK THE SUCESSFUL MESSAGE
	$size = filesize($tmp );
	echo "OK: $size bytes FILENAME: $metadata $method ";  
}



?>