add stream wrapper for in-memory files and dont use global variables for the fakedir stream wrapper

3 files changed, 224 insertions, 46 deletions

diff --git a/lib/base.php b/lib/base.php
index 5b6ed9bcb1f..94e4907fed2 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -279,7 +279,7 @@ if(!function_exists('get_temp_dir')) {
 
 OC::init();
 
-require_once('fakedirstream.php');
+require_once('streamwrappers.php');
 
 
 
diff --git a/lib/fakedirstream.php b/lib/fakedirstream.php
deleted file mode 100644
index fa3e64da62c..00000000000
--- a/lib/fakedirstream.php
+++ /dev/null
@@ -1,45 +0,0 @@
-<?php
-global $FAKEDIRS;
-$FAKEDIRS=array();
-
-class fakeDirStream{
-	private $name;
-	private $data;
-	private $index;
-
-	public function dir_opendir($path,$options){
-		global $FAKEDIRS;
-		$url=parse_url($path);
-		$this->name=substr($path,strlen('fakedir://'));
-		$this->index=0;
-		if(isset($FAKEDIRS[$this->name])){
-			$this->data=$FAKEDIRS[$this->name];
-		}else{
-			$this->data=array();
-		}
-		return true;
-	}
-
-	public function dir_readdir(){
-		if($this->index>=count($this->data)){
-			return false;
-		}
-		$filename=$this->data[$this->index];
-		$this->index++;
-		return $filename;
-	}
-
-	public function dir_closedir() {
-		$this->data=false;
-		$this->name='';
-		return true;
-	}
-
-	public function dir_rewinddir() {
-		$this->index=0;
-		return true;
-	}
-}
- 
-stream_wrapper_register("fakedir", "fakeDirStream");
-
diff --git a/lib/streamwrappers.php b/lib/streamwrappers.php
new file mode 100644
index 00000000000..1454a99e8d5
--- /dev/null
+++ b/lib/streamwrappers.php
@@ -0,0 +1,223 @@
+<?php
+global $FAKEDIRS;
+$FAKEDIRS=array();
+
+class OC_FakeDirStream{
+	public static $dirs=array();
+	private $name;
+	private $index;
+
+	public function dir_opendir($path,$options){
+		global $FAKEDIRS;
+		$url=parse_url($path);
+		$this->name=substr($path,strlen('fakedir://'));
+		$this->index=0;
+		if(!isset(self::$dirs[$this->name])){
+			self::$dirs[$this->name]=array();
+		}
+		return true;
+	}
+
+	public function dir_readdir(){
+		if($this->index>=count(self::$dirs[$this->name])){
+			return false;
+		}
+		$filename=self::$dirs[$this->name][$this->index];
+		$this->index++;
+		return $filename;
+	}
+
+	public function dir_closedir() {
+		$this->name='';
+		return true;
+	}
+
+	public function dir_rewinddir() {
+		$this->index=0;
+		return true;
+	}
+}
+
+class OC_StaticStreamWrapper {
+	public $context;
+	protected static $data = array();
+
+	protected $path    = '';
+	protected $pointer = 0;
+	protected $writable = false;
+
+	public function stream_close() {}
+
+	public function stream_eof() {
+		return $this->pointer >= strlen(self::$data[$this->path]);
+	}
+
+	public function stream_flush() {}
+
+	public function stream_open($path, $mode, $options, &$opened_path) {
+		switch ($mode[0]) {
+			case 'r':
+				if (!isset(self::$data[$path])) return false;
+				$this->path = $path;
+				$this->writable = isset($mode[1]) && $mode[1] == '+';
+				break;
+			case 'w':
+				self::$data[$path] = '';
+				$this->path = $path;
+				$this->writable = true;
+				break;
+			case 'a':
+				if (!isset(self::$data[$path])) self::$data[$path] = '';
+				$this->path = $path;
+				$this->writable = true;
+				$this->pointer = strlen(self::$data[$path]);
+				break;
+			case 'x':
+				if (isset(self::$data[$path])) return false;
+				$this->path = $path;
+				$this->writable = true;
+				break;
+			case 'c':
+				if (!isset(self::$data[$path])) self::$data[$path] = '';
+				$this->path = $path;
+				$this->writable = true;
+				break;
+			default:
+				return false;
+		}
+		$opened_path = $this->path;
+		return true;
+	}
+
+	public function stream_read($count) {
+		$bytes = min(strlen(self::$data[$this->path]) - $this->pointer, $count);
+		$data = substr(self::$data[$this->path], $this->pointer, $bytes);
+		$this->pointer += $bytes;
+		return $data;
+	}
+
+	public function stream_seek($offset, $whence = SEEK_SET) {
+		$len = strlen(self::$data[$this->path]);
+		switch ($whence) {
+			case SEEK_SET:
+				if ($offset <= $len) {
+					$this->pointer = $offset;
+					return true;
+				}
+				break;
+			case SEEK_CUR:
+				if ($this->pointer + $offset <= $len) {
+					$this->pointer += $offset;
+					return true;
+				}
+				break;
+			case SEEK_END:
+				if ($len + $offset <= $len) {
+					$this->pointer = $len + $offset;
+					return true;
+				}
+				break;
+		}
+		return false;
+	}
+
+	public function stream_stat() {
+		$size = strlen(self::$data[$this->path]);
+		$time = time();
+		return array(
+			0 => 0,
+			'dev' => 0,
+			1 => 0,
+			'ino' => 0,
+			2 => 0777,
+			'mode' => 0777,
+			3 => 1,
+			'nlink' => 1,
+			4 => 0,
+			'uid' => 0,
+			5 => 0,
+			'gid' => 0,
+			6 => '',
+			'rdev' => '',
+			7 => $size,
+			'size' => $size,
+			8 => $time,
+			'atime' => $time,
+			9 => $time,
+			'mtime' => $time,
+			10 => $time,
+			'ctime' => $time,
+			11 => -1,
+			'blksize' => -1,
+			12 => -1,
+			'blocks' => -1,
+		);
+	}
+
+	public function stream_tell() {
+		return $this->pointer;
+	}
+
+	public function stream_write($data) {
+		if (!$this->writable) return 0;
+		$size = strlen($data);
+		$len = strlen(self::$data[$this->path]);
+		if ($this->stream_eof()) {
+			self::$data[$this->path] .= $data;
+		} else {
+			self::$data[$this->path] = substr_replace(
+				self::$data[$this->path],
+				$data,
+				$this->pointer
+			);
+		}
+		$this->pointer += $size;
+		return $size;
+	}
+
+	public function unlink($path) {
+		if (isset(self::$data[$path])) {
+			unset(self::$data[$path]);
+		}
+		return true;
+	}
+
+	public function url_stat($path) {
+		if (isset(self::$data[$path])) {
+			$size = strlen(self::$data[$path]);
+			$time = time();
+			return array(
+				0 => 0,
+				'dev' => 0,
+				1 => 0,
+				'ino' => 0,
+				2 => 0777,
+				'mode' => 0777,
+				3 => 1,
+				'nlink' => 1,
+				4 => 0,
+				'uid' => 0,
+				5 => 0,
+				'gid' => 0,
+				6 => '',
+				'rdev' => '',
+				7 => $size,
+				'size' => $size,
+				8 => $time,
+				'atime' => $time,
+				9 => $time,
+				'mtime' => $time,
+				10 => $time,
+				'ctime' => $time,
+				11 => -1,
+				'blksize' => -1,
+				12 => -1,
+				'blocks' => -1,
+			);
+		}
+		return false;
+	}
+}
+
+stream_wrapper_register("fakedir", "OC_FakeDirStream");
+stream_wrapper_register('static', 'OC_StaticStreamWrapper');