--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Service/WindowsAzure/Storage/Blob/Stream.php Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,565 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category Zend
+ * @package Zend_Service_WindowsAzure_Storage
+ * @subpackage Blob
+ * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://todo name_todo
+ * @version $Id: Stream.php 23167 2010-10-19 17:53:31Z mabe $
+ */
+
+/**
+ * @see Zend_Service_WindowsAzure_Storage_Blob
+ */
+require_once 'Zend/Service/WindowsAzure/Storage/Blob.php';
+
+/**
+ * @see Zend_Service_WindowsAzure_Exception
+ */
+require_once 'Zend/Service/WindowsAzure/Exception.php';
+
+
+/**
+ * @category Zend
+ * @package Zend_Service_WindowsAzure_Storage
+ * @subpackage Blob
+ * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Service_WindowsAzure_Storage_Blob_Stream
+{
+ /**
+ * Current file name
+ *
+ * @var string
+ */
+ private $_fileName = null;
+
+ /**
+ * Temporary file name
+ *
+ * @var string
+ */
+ private $_temporaryFileName = null;
+
+ /**
+ * Temporary file handle
+ *
+ * @var resource
+ */
+ private $_temporaryFileHandle = null;
+
+ /**
+ * Blob storage client
+ *
+ * @var Zend_Service_WindowsAzure_Storage_Blob
+ */
+ private $_storageClient = null;
+
+ /**
+ * Write mode?
+ *
+ * @var boolean
+ */
+ private $_writeMode = false;
+
+ /**
+ * List of blobs
+ *
+ * @var array
+ */
+ private $_blobs = null;
+
+ /**
+ * Retrieve storage client for this stream type
+ *
+ * @param string $path
+ * @return Zend_Service_WindowsAzure_Storage_Blob
+ */
+ protected function _getStorageClient($path = '')
+ {
+ if ($this->_storageClient === null) {
+ $url = explode(':', $path);
+ if (!$url) {
+ throw new Zend_Service_WindowsAzure_Exception('Could not parse path "' . $path . '".');
+ }
+
+ $this->_storageClient = Zend_Service_WindowsAzure_Storage_Blob::getWrapperClient($url[0]);
+ if (!$this->_storageClient) {
+ throw new Zend_Service_WindowsAzure_Exception('No storage client registered for stream type "' . $url[0] . '://".');
+ }
+ }
+
+ return $this->_storageClient;
+ }
+
+ /**
+ * Extract container name
+ *
+ * @param string $path
+ * @return string
+ */
+ protected function _getContainerName($path)
+ {
+ $url = parse_url($path);
+ if ($url['host']) {
+ return $url['host'];
+ }
+
+ return '';
+ }
+
+ /**
+ * Extract file name
+ *
+ * @param string $path
+ * @return string
+ */
+ protected function _getFileName($path)
+ {
+ $url = parse_url($path);
+ if ($url['host']) {
+ $fileName = isset($url['path']) ? $url['path'] : $url['host'];
+ if (strpos($fileName, '/') === 0) {
+ $fileName = substr($fileName, 1);
+ }
+ return $fileName;
+ }
+
+ return '';
+ }
+
+ /**
+ * Open the stream
+ *
+ * @param string $path
+ * @param string $mode
+ * @param integer $options
+ * @param string $opened_path
+ * @return boolean
+ */
+ public function stream_open($path, $mode, $options, $opened_path)
+ {
+ $this->_fileName = $path;
+ $this->_temporaryFileName = tempnam(sys_get_temp_dir(), 'azure');
+
+ // Check the file can be opened
+ $fh = @fopen($this->_temporaryFileName, $mode);
+ if ($fh === false) {
+ return false;
+ }
+ fclose($fh);
+
+ // Write mode?
+ if (strpbrk($mode, 'wax+')) {
+ $this->_writeMode = true;
+ } else {
+ $this->_writeMode = false;
+ }
+
+ // If read/append, fetch the file
+ if (!$this->_writeMode || strpbrk($mode, 'ra+')) {
+ $this->_getStorageClient($this->_fileName)->getBlob(
+ $this->_getContainerName($this->_fileName),
+ $this->_getFileName($this->_fileName),
+ $this->_temporaryFileName
+ );
+ }
+
+ // Open temporary file handle
+ $this->_temporaryFileHandle = fopen($this->_temporaryFileName, $mode);
+
+ // Ok!
+ return true;
+ }
+
+ /**
+ * Close the stream
+ *
+ * @return void
+ */
+ public function stream_close()
+ {
+ @fclose($this->_temporaryFileHandle);
+
+ // Upload the file?
+ if ($this->_writeMode) {
+ // Make sure the container exists
+ $containerExists = $this->_getStorageClient($this->_fileName)->containerExists(
+ $this->_getContainerName($this->_fileName)
+ );
+ if (!$containerExists) {
+ $this->_getStorageClient($this->_fileName)->createContainer(
+ $this->_getContainerName($this->_fileName)
+ );
+ }
+
+ // Upload the file
+ try {
+ $this->_getStorageClient($this->_fileName)->putBlob(
+ $this->_getContainerName($this->_fileName),
+ $this->_getFileName($this->_fileName),
+ $this->_temporaryFileName
+ );
+ } catch (Zend_Service_WindowsAzure_Exception $ex) {
+ @unlink($this->_temporaryFileName);
+ unset($this->_storageClient);
+
+ throw $ex;
+ }
+ }
+
+ @unlink($this->_temporaryFileName);
+ unset($this->_storageClient);
+ }
+
+ /**
+ * Read from the stream
+ *
+ * @param integer $count
+ * @return string
+ */
+ public function stream_read($count)
+ {
+ if (!$this->_temporaryFileHandle) {
+ return false;
+ }
+
+ return fread($this->_temporaryFileHandle, $count);
+ }
+
+ /**
+ * Write to the stream
+ *
+ * @param string $data
+ * @return integer
+ */
+ public function stream_write($data)
+ {
+ if (!$this->_temporaryFileHandle) {
+ return 0;
+ }
+
+ $len = strlen($data);
+ fwrite($this->_temporaryFileHandle, $data, $len);
+ return $len;
+ }
+
+ /**
+ * End of the stream?
+ *
+ * @return boolean
+ */
+ public function stream_eof()
+ {
+ if (!$this->_temporaryFileHandle) {
+ return true;
+ }
+
+ return feof($this->_temporaryFileHandle);
+ }
+
+ /**
+ * What is the current read/write position of the stream?
+ *
+ * @return integer
+ */
+ public function stream_tell()
+ {
+ return ftell($this->_temporaryFileHandle);
+ }
+
+ /**
+ * Update the read/write position of the stream
+ *
+ * @param integer $offset
+ * @param integer $whence
+ * @return boolean
+ */
+ public function stream_seek($offset, $whence)
+ {
+ if (!$this->_temporaryFileHandle) {
+ return false;
+ }
+
+ return (fseek($this->_temporaryFileHandle, $offset, $whence) === 0);
+ }
+
+ /**
+ * Flush current cached stream data to storage
+ *
+ * @return boolean
+ */
+ public function stream_flush()
+ {
+ $result = fflush($this->_temporaryFileHandle);
+
+ // Upload the file?
+ if ($this->_writeMode) {
+ // Make sure the container exists
+ $containerExists = $this->_getStorageClient($this->_fileName)->containerExists(
+ $this->_getContainerName($this->_fileName)
+ );
+ if (!$containerExists) {
+ $this->_getStorageClient($this->_fileName)->createContainer(
+ $this->_getContainerName($this->_fileName)
+ );
+ }
+
+ // Upload the file
+ try {
+ $this->_getStorageClient($this->_fileName)->putBlob(
+ $this->_getContainerName($this->_fileName),
+ $this->_getFileName($this->_fileName),
+ $this->_temporaryFileName
+ );
+ } catch (Zend_Service_WindowsAzure_Exception $ex) {
+ @unlink($this->_temporaryFileName);
+ unset($this->_storageClient);
+
+ throw $ex;
+ }
+ }
+
+ return $result;
+ }
+
+ /**
+ * Returns data array of stream variables
+ *
+ * @return array
+ */
+ public function stream_stat()
+ {
+ if (!$this->_temporaryFileHandle) {
+ return false;
+ }
+
+ $stat = array();
+ $stat['dev'] = 0;
+ $stat['ino'] = 0;
+ $stat['mode'] = 0;
+ $stat['nlink'] = 0;
+ $stat['uid'] = 0;
+ $stat['gid'] = 0;
+ $stat['rdev'] = 0;
+ $stat['size'] = 0;
+ $stat['atime'] = 0;
+ $stat['mtime'] = 0;
+ $stat['ctime'] = 0;
+ $stat['blksize'] = 0;
+ $stat['blocks'] = 0;
+
+ $info = null;
+ try {
+ $info = $this->_getStorageClient($this->_fileName)->getBlobInstance(
+ $this->_getContainerName($this->_fileName),
+ $this->_getFileName($this->_fileName)
+ );
+ } catch (Zend_Service_WindowsAzure_Exception $ex) {
+ // Unexisting file...
+ }
+ if ($info !== null) {
+ $stat['size'] = $info->Size;
+ $stat['atime'] = time();
+ }
+
+ return $stat;
+ }
+
+ /**
+ * Attempt to delete the item
+ *
+ * @param string $path
+ * @return boolean
+ */
+ public function unlink($path)
+ {
+ $this->_getStorageClient($path)->deleteBlob(
+ $this->_getContainerName($path),
+ $this->_getFileName($path)
+ );
+ }
+
+ /**
+ * Attempt to rename the item
+ *
+ * @param string $path_from
+ * @param string $path_to
+ * @return boolean False
+ */
+ public function rename($path_from, $path_to)
+ {
+ if ($this->_getContainerName($path_from) != $this->_getContainerName($path_to)) {
+ throw new Zend_Service_WindowsAzure_Exception('Container name can not be changed.');
+ }
+
+ if ($this->_getFileName($path_from) == $this->_getContainerName($path_to)) {
+ return true;
+ }
+
+ $this->_getStorageClient($path_from)->copyBlob(
+ $this->_getContainerName($path_from),
+ $this->_getFileName($path_from),
+ $this->_getContainerName($path_to),
+ $this->_getFileName($path_to)
+ );
+ $this->_getStorageClient($path_from)->deleteBlob(
+ $this->_getContainerName($path_from),
+ $this->_getFileName($path_from)
+ );
+ return true;
+ }
+
+ /**
+ * Return array of URL variables
+ *
+ * @param string $path
+ * @param integer $flags
+ * @return array
+ */
+ public function url_stat($path, $flags)
+ {
+ $stat = array();
+ $stat['dev'] = 0;
+ $stat['ino'] = 0;
+ $stat['mode'] = 0;
+ $stat['nlink'] = 0;
+ $stat['uid'] = 0;
+ $stat['gid'] = 0;
+ $stat['rdev'] = 0;
+ $stat['size'] = 0;
+ $stat['atime'] = 0;
+ $stat['mtime'] = 0;
+ $stat['ctime'] = 0;
+ $stat['blksize'] = 0;
+ $stat['blocks'] = 0;
+
+ $info = null;
+ try {
+ $info = $this->_getStorageClient($path)->getBlobInstance(
+ $this->_getContainerName($path),
+ $this->_getFileName($path)
+ );
+ } catch (Zend_Service_WindowsAzure_Exception $ex) {
+ // Unexisting file...
+ }
+ if ($info !== null) {
+ $stat['size'] = $info->Size;
+ $stat['atime'] = time();
+ }
+
+ return $stat;
+ }
+
+ /**
+ * Create a new directory
+ *
+ * @param string $path
+ * @param integer $mode
+ * @param integer $options
+ * @return boolean
+ */
+ public function mkdir($path, $mode, $options)
+ {
+ if ($this->_getContainerName($path) == $this->_getFileName($path)) {
+ // Create container
+ try {
+ $this->_getStorageClient($path)->createContainer(
+ $this->_getContainerName($path)
+ );
+ } catch (Zend_Service_WindowsAzure_Exception $ex) {
+ return false;
+ }
+ } else {
+ throw new Zend_Service_WindowsAzure_Exception('mkdir() with multiple levels is not supported on Windows Azure Blob Storage.');
+ }
+ }
+
+ /**
+ * Remove a directory
+ *
+ * @param string $path
+ * @param integer $options
+ * @return boolean
+ */
+ public function rmdir($path, $options)
+ {
+ if ($this->_getContainerName($path) == $this->_getFileName($path)) {
+ // Delete container
+ try {
+ $this->_getStorageClient($path)->deleteContainer(
+ $this->_getContainerName($path)
+ );
+ } catch (Zend_Service_WindowsAzure_Exception $ex) {
+ return false;
+ }
+ } else {
+ throw new Zend_Service_WindowsAzure_Exception('rmdir() with multiple levels is not supported on Windows Azure Blob Storage.');
+ }
+ }
+
+ /**
+ * Attempt to open a directory
+ *
+ * @param string $path
+ * @param integer $options
+ * @return boolean
+ */
+ public function dir_opendir($path, $options)
+ {
+ $this->_blobs = $this->_getStorageClient($path)->listBlobs(
+ $this->_getContainerName($path)
+ );
+ return is_array($this->_blobs);
+ }
+
+ /**
+ * Return the next filename in the directory
+ *
+ * @return string
+ */
+ public function dir_readdir()
+ {
+ $object = current($this->_blobs);
+ if ($object !== false) {
+ next($this->_blobs);
+ return $object->Name;
+ }
+ return false;
+ }
+
+ /**
+ * Reset the directory pointer
+ *
+ * @return boolean True
+ */
+ public function dir_rewinddir()
+ {
+ reset($this->_blobs);
+ return true;
+ }
+
+ /**
+ * Close a directory
+ *
+ * @return boolean True
+ */
+ public function dir_closedir()
+ {
+ $this->_blobs = null;
+ return true;
+ }
+}