experimental SCP writing (for using Tinyboard over multiple servers)

inc/config.php

@@ -221,6 +221,9 @@
 	// Display the aspect ratio in a post's file info
 	$config['show_ratio']	= true;
 	
+	// Directory where temporary files will be created. Not really used much yet except for some experimental stuff.
+	$config['tmp'] = '/tmp';
+	
 	// The root directory, including the trailing slash, for Tinyboard.
 	// examples: '/', 'http://boards.chan.org/', '/chan/'
 	$config['root']		= (str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) == '/' ? '/' : str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) . '/');

inc/functions.php

@@ -212,9 +212,23 @@
 	}
 	
 	function file_write($path, $data) {
+		global $config;
+		if(preg_match('/^scp:\/\/(.+)$/', $path, $m)) {
+			// Experimental: secure copy...
+			$file = tempnam($config['tmp'], 'tinyboard-scp');
+			// Write to temp file
+			file_write($file, $data);
+			// Call `scp` (yes, this is horrible)
+			$command = 'scp ' . escapeshellarg($file) . ' ' . escapeshellarg($m[1]);
+			system($command);
+			// Delete temporary file
+			unlink($file);
+			exit;
+		}
+		
 		if(!$fp = fopen($path, 'c'))
 			error('Unable to open file for writing: ' . $path);
-
+		
 		// File locking
 		if(!flock($fp, LOCK_EX)) {
 			error('Unable to lock file: ' . $path);