1 files changed, 100 insertions, 0 deletions
diff --git a/lib/private/files/stream/close.php b/lib/private/files/stream/close.php
new file mode 100644
index 00000000000..80de3497c36
--- /dev/null
+++ b/lib/private/files/stream/close.php
@@ -0,0 +1,100 @@
+<?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 OC\Files\Stream;
+
+/**
+ * stream wrapper that provides a callback on stream close
+ */
+class Close {
+	private static $callBacks = array();
+	private $path = '';
+	private $source;
+	private static $open = array();
+
+	public function stream_open($path, $mode, $options, &$opened_path) {
+		$path = substr($path, strlen('close://'));
+		$this->path = $path;
+		$this->source = fopen($path, $mode);
+		if (is_resource($this->source)) {
+			$this->meta = stream_get_meta_data($this->source);
+		}
+		self::$open[] = $path;
+		return is_resource($this->source);
+	}
+
+	public function stream_seek($offset, $whence = SEEK_SET) {
+		fseek($this->source, $offset, $whence);
+	}
+
+	public function stream_tell() {
+		return ftell($this->source);
+	}
+
+	public function stream_read($count) {
+		return fread($this->source, $count);
+	}
+
+	public function stream_write($data) {
+		return fwrite($this->source, $data);
+	}
+
+	public function stream_set_option($option, $arg1, $arg2) {
+		switch ($option) {
+			case STREAM_OPTION_BLOCKING:
+				stream_set_blocking($this->source, $arg1);
+				break;
+			case STREAM_OPTION_READ_TIMEOUT:
+				stream_set_timeout($this->source, $arg1, $arg2);
+				break;
+			case STREAM_OPTION_WRITE_BUFFER:
+				stream_set_write_buffer($this->source, $arg1, $arg2);
+		}
+	}
+
+	public function stream_stat() {
+		return fstat($this->source);
+	}
+
+	public function stream_lock($mode) {
+		flock($this->source, $mode);
+	}
+
+	public function stream_flush() {
+		return fflush($this->source);
+	}
+
+	public function stream_eof() {
+		return feof($this->source);
+	}
+
+	public function url_stat($path) {
+		$path = substr($path, strlen('close://'));
+		if (file_exists($path)) {
+			return stat($path);
+		} else {
+			return false;
+		}
+	}
+
+	public function stream_close() {
+		fclose($this->source);
+		if (isset(self::$callBacks[$this->path])) {
+			call_user_func(self::$callBacks[$this->path], $this->path);
+		}
+	}
+
+	public function unlink($path) {
+		$path = substr($path, strlen('close://'));
+		return unlink($path);
+	}
+
+	public static function registerCallback($path, $callback) {
+		self::$callBacks[$path] = $callback;
+	}
+}