Split off connection code to a seperate class

src/connection.php

@@ -0,0 +1,71 @@
+<?php
+/**
+ * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace SMB;
+
+class Connection {
+	/**
+	 * @var resource[] $pipes
+	 *
+	 * $pipes[0] holds STDIN for smbclient
+	 * $pipes[1] holds STDOUT for smbclient
+	 */
+	private $pipes;
+
+	/**
+	 * @var resource $process
+	 */
+	private $process;
+
+
+	public function __construct($command) {
+		$descriptorSpec = array(
+			0 => array("pipe", "r"),
+			1 => array("pipe", "w"),
+		);
+		putenv('LC_ALL=' . Server::LOCALE);
+		setlocale(LC_ALL, Server::LOCALE);
+		$this->process = proc_open($command, $descriptorSpec, $this->pipes, null, array(
+			'CLI_FORCE_INTERACTIVE' => 'y' // Needed or the prompt isn't displayed!!
+		));
+		if (!is_resource($this->process)) {
+			throw new ConnectionError();
+		}
+	}
+
+	/**
+	 * send input to smbclient
+	 *
+	 * @param string $input
+	 */
+	public function write($input) {
+		fwrite($this->pipes[0], $input);
+		fwrite($this->pipes[0], PHP_EOL); //make sure we have a recognizable delimiter
+		fflush($this->pipes[0]);
+	}
+
+	/**
+	 * get all unprocessed output from smbclient
+	 *
+	 * @return array
+	 */
+	public function read() {
+		fgets($this->pipes[1]); //first line is prompt
+		$output = array();
+		$line = fgets($this->pipes[1]);
+		while (substr($line, 0, 4) !== 'smb:') { //next prompt functions as delimiter
+			$output[] .= $line;
+			$line = fgets($this->pipes[1]);
+		}
+		return $output;
+	}
+
+	public function __destruct() {
+		proc_close($this->process);
+	}
+}